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authorTimothy Pearson <kb9vqf@pearsoncomputing.net>2012-02-16 16:09:16 -0600
committerTimothy Pearson <kb9vqf@pearsoncomputing.net>2012-02-16 16:09:16 -0600
commit4462592a15abe78aac66fe7edbf7ed409adb27f5 (patch)
tree175743f295c5503970a3155a5d3332f9c8df7b2d /src
downloadlibcaldav-4462592a15abe78aac66fe7edbf7ed409adb27f5.tar.gz
libcaldav-4462592a15abe78aac66fe7edbf7ed409adb27f5.zip
Initial import
Diffstat (limited to 'src')
-rw-r--r--src/.svn/all-wcprops137
-rw-r--r--src/.svn/entries776
-rw-r--r--src/.svn/text-base/Makefile.am.svn-base53
-rw-r--r--src/.svn/text-base/Makefile.in.svn-base649
-rw-r--r--src/.svn/text-base/add-caldav-object.c.svn-base131
-rw-r--r--src/.svn/text-base/add-caldav-object.h.svn-base35
-rw-r--r--src/.svn/text-base/caldav-utils.c.svn-base713
-rw-r--r--src/.svn/text-base/caldav-utils.h.svn-base221
-rw-r--r--src/.svn/text-base/caldav.c.svn-base745
-rw-r--r--src/.svn/text-base/caldav.h.svn-base343
-rw-r--r--src/.svn/text-base/delete-caldav-object.c.svn-base284
-rw-r--r--src/.svn/text-base/delete-caldav-object.h.svn-base35
-rw-r--r--src/.svn/text-base/get-caldav-report.c.svn-base254
-rw-r--r--src/.svn/text-base/get-caldav-report.h.svn-base43
-rw-r--r--src/.svn/text-base/get-display-name.c.svn-base138
-rw-r--r--src/.svn/text-base/get-display-name.h.svn-base34
-rw-r--r--src/.svn/text-base/lock-caldav-object.c.svn-base292
-rw-r--r--src/.svn/text-base/lock-caldav-object.h.svn-base55
-rw-r--r--src/.svn/text-base/md5.c.svn-base442
-rw-r--r--src/.svn/text-base/md5.h.svn-base52
-rw-r--r--src/.svn/text-base/modify-caldav-object.c.svn-base296
-rw-r--r--src/.svn/text-base/modify-caldav-object.h.svn-base34
-rw-r--r--src/.svn/text-base/options-caldav-server.c.svn-base135
-rw-r--r--src/.svn/text-base/options-caldav-server.h.svn-base43
-rw-r--r--src/Makefile.am53
-rw-r--r--src/Makefile.in649
-rw-r--r--src/add-caldav-object.c132
-rw-r--r--src/add-caldav-object.h35
-rw-r--r--src/caldav-utils.c729
-rw-r--r--src/caldav-utils.h221
-rw-r--r--src/caldav.c995
-rw-r--r--src/caldav.h407
-rw-r--r--src/delete-caldav-object.c533
-rw-r--r--src/delete-caldav-object.h43
-rw-r--r--src/get-caldav-report.c472
-rw-r--r--src/get-caldav-report.h59
-rw-r--r--src/get-display-name.c139
-rw-r--r--src/get-display-name.h34
-rw-r--r--src/get-freebusy-report.c140
-rw-r--r--src/get-freebusy-report.h35
-rw-r--r--src/lock-caldav-object.c292
-rw-r--r--src/lock-caldav-object.h55
-rw-r--r--src/md5.c442
-rw-r--r--src/md5.h52
-rw-r--r--src/modify-caldav-object.c555
-rw-r--r--src/modify-caldav-object.h42
-rw-r--r--src/options-caldav-server.c135
-rw-r--r--src/options-caldav-server.h43
48 files changed, 12232 insertions, 0 deletions
diff --git a/src/.svn/all-wcprops b/src/.svn/all-wcprops
new file mode 100644
index 0000000..7bf56a4
--- /dev/null
+++ b/src/.svn/all-wcprops
@@ -0,0 +1,137 @@
+K 25
+svn:wc:ra_dav:version-url
+V 40
+/svnroot/libcaldav/!svn/ver/42/trunk/src
+END
+delete-caldav-object.c
+K 25
+svn:wc:ra_dav:version-url
+V 63
+/svnroot/libcaldav/!svn/ver/41/trunk/src/delete-caldav-object.c
+END
+caldav.h
+K 25
+svn:wc:ra_dav:version-url
+V 49
+/svnroot/libcaldav/!svn/ver/39/trunk/src/caldav.h
+END
+get-display-name.c
+K 25
+svn:wc:ra_dav:version-url
+V 59
+/svnroot/libcaldav/!svn/ver/41/trunk/src/get-display-name.c
+END
+Makefile.in
+K 25
+svn:wc:ra_dav:version-url
+V 52
+/svnroot/libcaldav/!svn/ver/42/trunk/src/Makefile.in
+END
+delete-caldav-object.h
+K 25
+svn:wc:ra_dav:version-url
+V 62
+/svnroot/libcaldav/!svn/ver/1/trunk/src/delete-caldav-object.h
+END
+get-display-name.h
+K 25
+svn:wc:ra_dav:version-url
+V 58
+/svnroot/libcaldav/!svn/ver/1/trunk/src/get-display-name.h
+END
+get-caldav-report.c
+K 25
+svn:wc:ra_dav:version-url
+V 60
+/svnroot/libcaldav/!svn/ver/41/trunk/src/get-caldav-report.c
+END
+modify-caldav-object.c
+K 25
+svn:wc:ra_dav:version-url
+V 63
+/svnroot/libcaldav/!svn/ver/41/trunk/src/modify-caldav-object.c
+END
+lock-caldav-object.c
+K 25
+svn:wc:ra_dav:version-url
+V 61
+/svnroot/libcaldav/!svn/ver/41/trunk/src/lock-caldav-object.c
+END
+add-caldav-object.c
+K 25
+svn:wc:ra_dav:version-url
+V 60
+/svnroot/libcaldav/!svn/ver/41/trunk/src/add-caldav-object.c
+END
+get-caldav-report.h
+K 25
+svn:wc:ra_dav:version-url
+V 60
+/svnroot/libcaldav/!svn/ver/39/trunk/src/get-caldav-report.h
+END
+md5.c
+K 25
+svn:wc:ra_dav:version-url
+V 45
+/svnroot/libcaldav/!svn/ver/1/trunk/src/md5.c
+END
+options-caldav-server.c
+K 25
+svn:wc:ra_dav:version-url
+V 64
+/svnroot/libcaldav/!svn/ver/41/trunk/src/options-caldav-server.c
+END
+caldav-utils.c
+K 25
+svn:wc:ra_dav:version-url
+V 55
+/svnroot/libcaldav/!svn/ver/42/trunk/src/caldav-utils.c
+END
+Makefile.am
+K 25
+svn:wc:ra_dav:version-url
+V 52
+/svnroot/libcaldav/!svn/ver/39/trunk/src/Makefile.am
+END
+modify-caldav-object.h
+K 25
+svn:wc:ra_dav:version-url
+V 62
+/svnroot/libcaldav/!svn/ver/1/trunk/src/modify-caldav-object.h
+END
+lock-caldav-object.h
+K 25
+svn:wc:ra_dav:version-url
+V 60
+/svnroot/libcaldav/!svn/ver/9/trunk/src/lock-caldav-object.h
+END
+add-caldav-object.h
+K 25
+svn:wc:ra_dav:version-url
+V 59
+/svnroot/libcaldav/!svn/ver/1/trunk/src/add-caldav-object.h
+END
+caldav.c
+K 25
+svn:wc:ra_dav:version-url
+V 49
+/svnroot/libcaldav/!svn/ver/39/trunk/src/caldav.c
+END
+md5.h
+K 25
+svn:wc:ra_dav:version-url
+V 45
+/svnroot/libcaldav/!svn/ver/1/trunk/src/md5.h
+END
+options-caldav-server.h
+K 25
+svn:wc:ra_dav:version-url
+V 64
+/svnroot/libcaldav/!svn/ver/10/trunk/src/options-caldav-server.h
+END
+caldav-utils.h
+K 25
+svn:wc:ra_dav:version-url
+V 55
+/svnroot/libcaldav/!svn/ver/34/trunk/src/caldav-utils.h
+END
diff --git a/src/.svn/entries b/src/.svn/entries
new file mode 100644
index 0000000..ac8f411
--- /dev/null
+++ b/src/.svn/entries
@@ -0,0 +1,776 @@
+10
+
+dir
+42
+https://libcaldav.svn.sourceforge.net/svnroot/libcaldav/trunk/src
+https://libcaldav.svn.sourceforge.net/svnroot/libcaldav
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diff --git a/src/.svn/text-base/Makefile.am.svn-base b/src/.svn/text-base/Makefile.am.svn-base
new file mode 100644
index 0000000..59d3126
--- /dev/null
+++ b/src/.svn/text-base/Makefile.am.svn-base
@@ -0,0 +1,53 @@
+AUTOMAKE_OPTIONS = gnu
+
+INCLUDES = @CURL_CFLAGS@ @GLIB_CFLAGS@ \
+ -I$(top_srcdir) -I$(top_builddir)
+
+if STATIC_LINK
+noinst_LTLIBRARIES = libcaldav.la
+endif
+
+if DYNAMIC_LINK
+lib_LTLIBRARIES = libcaldav.la
+endif
+
+libcaldav_la_LDFLAGS = -version-info @LIBVERSION@
+
+libcaldav_la_SOURCES = \
+ caldav.h \
+ caldav.c \
+ add-caldav-object.c \
+ add-caldav-object.h \
+ delete-caldav-object.c \
+ delete-caldav-object.h \
+ modify-caldav-object.c \
+ modify-caldav-object.h \
+ get-caldav-report.c \
+ get-caldav-report.h \
+ get-display-name.c \
+ get-display-name.h \
+ caldav-utils.c \
+ caldav-utils.h \
+ md5.c \
+ md5.h \
+ options-caldav-server.c \
+ options-caldav-server.h \
+ lock-caldav-object.c \
+ lock-caldav-object.h \
+ get-freebusy-report.c \
+ get-freebusy-report.h
+
+libcaldav_includedir=$(includedir)/libcaldav-@VERSION@
+libcaldav_include_HEADERS = caldav.h
+
+noinst_HEADERS = \
+ add-caldav-object.h \
+ delete-caldav-object.h \
+ modify-caldav-object.h \
+ get-caldav-report.h \
+ caldav-utils.h
+
+libcaldav_la_LIBADD = \
+ @CURL_LIBS@ \
+ @GLIB_LIBS@
+
diff --git a/src/.svn/text-base/Makefile.in.svn-base b/src/.svn/text-base/Makefile.in.svn-base
new file mode 100644
index 0000000..5803fc2
--- /dev/null
+++ b/src/.svn/text-base/Makefile.in.svn-base
@@ -0,0 +1,649 @@
+# Makefile.in generated by automake 1.11.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation,
+# Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+
+VPATH = @srcdir@
+pkgdatadir = $(datadir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkglibexecdir = $(libexecdir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
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+ test -f "$(distdir)/$$file" \
+ || cp -p $$d/$$file "$(distdir)/$$file" \
+ || exit 1; \
+ fi; \
+ done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES) $(HEADERS)
+installdirs:
+ for dir in "$(DESTDIR)$(libdir)" "$(DESTDIR)$(libcaldav_includedir)"; do \
+ test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+ done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+ @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ `test -z '$(STRIP)' || \
+ echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+ -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libLTLIBRARIES clean-libtool \
+ clean-noinstLTLIBRARIES mostlyclean-am
+
+distclean: distclean-am
+ -rm -rf ./$(DEPDIR)
+ -rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+ distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am: install-libcaldav_includeHEADERS
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-libLTLIBRARIES
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+ -rm -rf ./$(DEPDIR)
+ -rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+ mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-libLTLIBRARIES \
+ uninstall-libcaldav_includeHEADERS
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
+ clean-libLTLIBRARIES clean-libtool clean-noinstLTLIBRARIES \
+ ctags distclean distclean-compile distclean-generic \
+ distclean-libtool distclean-tags distdir dvi dvi-am html \
+ html-am info info-am install install-am install-data \
+ install-data-am install-dvi install-dvi-am install-exec \
+ install-exec-am install-html install-html-am install-info \
+ install-info-am install-libLTLIBRARIES \
+ install-libcaldav_includeHEADERS install-man install-pdf \
+ install-pdf-am install-ps install-ps-am install-strip \
+ installcheck installcheck-am installdirs maintainer-clean \
+ maintainer-clean-generic mostlyclean mostlyclean-compile \
+ mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+ tags uninstall uninstall-am uninstall-libLTLIBRARIES \
+ uninstall-libcaldav_includeHEADERS
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/src/.svn/text-base/add-caldav-object.c.svn-base b/src/.svn/text-base/add-caldav-object.c.svn-base
new file mode 100644
index 0000000..544c069
--- /dev/null
+++ b/src/.svn/text-base/add-caldav-object.c.svn-base
@@ -0,0 +1,131 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "add-caldav-object.h"
+#include <glib.h>
+#include <curl/curl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/**
+ * Function for adding a new event.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_add(caldav_settings* settings, caldav_error* error) {
+ CURL* curl;
+ CURLcode res = 0;
+ char error_buf[CURL_ERROR_SIZE];
+ struct config_data data;
+ struct MemoryStruct chunk;
+ struct MemoryStruct headers;
+ struct curl_slist *http_header = NULL;
+ gboolean result = FALSE;
+ gchar* url;
+
+ chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
+ chunk.size = 0; /* no data at this point */
+ headers.memory = NULL;
+ headers.size = 0;
+
+ curl = get_curl(settings);
+ if (!curl) {
+ error->code = -1;
+ error->str = g_strdup("Could not initialize libcurl");
+ g_free(settings->file);
+ settings->file = NULL;
+ return TRUE;
+ }
+
+ http_header = curl_slist_append(http_header,
+ "Content-Type: text/calendar; charset=\"utf-8\"");
+ http_header = curl_slist_append(http_header, "If-None-Match: *");
+ http_header = curl_slist_append(http_header, "Expect:");
+ http_header = curl_slist_append(http_header, "Transfer-Encoding:");
+ data.trace_ascii = settings->trace_ascii;
+
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
+ /* we pass our 'chunk' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
+ /* we pass our 'headers' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
+ curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
+ if (settings->debug) {
+ curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
+ curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
+ }
+ gchar* tmp = random_file_name(settings->file);
+ gchar* s = rebuild_url(settings, NULL);
+ if (g_str_has_suffix(s, "/")) {
+ url = g_strdup_printf("%slibcaldav-%s.ics", s, tmp);
+ }
+ else {
+ url = g_strdup_printf("%s/libcaldav-%s.ics", s, tmp);
+ }
+ g_free(s);
+ g_free(tmp);
+ curl_easy_setopt(curl, CURLOPT_URL, url);
+ tmp = g_strdup(settings->file);
+ g_free(settings->file);
+ settings->file = verify_uid(tmp);
+ g_free(tmp);
+ /* enable uploading */
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, settings->file);
+ curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, strlen(settings->file));
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "PUT");
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ res = curl_easy_perform(curl);
+ if (res != 0) {
+ error->code = -1;
+ error->str = g_strdup_printf("%s", error_buf);
+ g_free(settings->file);
+ settings->file = NULL;
+ result = TRUE;
+ }
+ else {
+ long code;
+ res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
+ if (code != 201) {
+ error->str = g_strdup(chunk.memory);
+ error->code = code;
+ result = TRUE;
+ }
+ }
+ if (chunk.memory)
+ free(chunk.memory);
+ if (headers.memory)
+ free(headers.memory);
+ curl_slist_free_all(http_header);
+ curl_easy_cleanup(curl);
+ return result;
+}
+
diff --git a/src/.svn/text-base/add-caldav-object.h.svn-base b/src/.svn/text-base/add-caldav-object.h.svn-base
new file mode 100644
index 0000000..0756e74
--- /dev/null
+++ b/src/.svn/text-base/add-caldav-object.h.svn-base
@@ -0,0 +1,35 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __ADD_CALDAV_OBJECT_H__
+#define __ADD_CALDAV_OBJECT_H__
+
+#include "caldav-utils.h"
+#include "caldav.h"
+
+/**
+ * Function for adding a new event.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_add(caldav_settings* settings, caldav_error* error);
+
+#endif
+
diff --git a/src/.svn/text-base/caldav-utils.c.svn-base b/src/.svn/text-base/caldav-utils.c.svn-base
new file mode 100644
index 0000000..50ce7ae
--- /dev/null
+++ b/src/.svn/text-base/caldav-utils.c.svn-base
@@ -0,0 +1,713 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "caldav-utils.h"
+#include "md5.h"
+#include <glib.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+#include <curl/curl.h>
+#include <ctype.h>
+
+/**
+ * This function is burrowed from the libcurl documentation
+ * @param text
+ * @param stream
+ * @param ptr
+ * @param size
+ * @param nohex
+ */
+void dump(const char* text, FILE* stream, char* ptr, size_t size, char nohex) {
+ size_t i;
+ size_t c;
+
+ unsigned int width=0x10;
+
+ if(nohex)
+ /* without the hex output, we can fit more on screen */
+ width = 0x40;
+ fprintf(stream, "%s, %zd bytes (0x%zx)\n", text, size, size);
+ for(i=0; i<size; i+= width) {
+ fprintf(stream, "%04zx: ", i);
+ if(!nohex) {
+ /* hex not disabled, show it */
+ for(c = 0; c < width; c++) {
+ if(i+c < size)
+ fprintf(stream, "%02x ", ptr[i+c]);
+ else
+ fputs(" ", stream);
+ }
+ }
+ for(c = 0; (c < width) && (i+c < size); c++) {
+ /* check for 0D0A; if found, skip past and start a new line of output */
+ if (nohex && (i+c+1 < size) && ptr[i+c]==0x0D && ptr[i+c+1]==0x0A) {
+ i+=(c+2-width);
+ break;
+ }
+ fprintf(stream, "%c",(ptr[i+c]>=0x20) && (ptr[i+c]<0x80)?ptr[i+c]:'.');
+ /* check again for 0D0A, to avoid an extra \n if it's at width */
+ if (nohex && (i+c+2 < size) && ptr[i+c+1]==0x0D && ptr[i+c+2]==0x0A) {
+ i+=(c+3-width);
+ break;
+ }
+ }
+ fputc('\n', stream); /* newline */
+ }
+ fflush(stream);
+}
+
+/**
+ * This function is burrowed from the libcurl documentation
+ * @param handle
+ * @param type
+ * @param data
+ * @param size
+ * @param userp
+ * @return
+ */
+int my_trace(CURL* handle, curl_infotype type, char* data, size_t size, void* userp) {
+ struct config_data* config = (struct config_data *)userp;
+ const char* text;
+ (void)handle; /* prevent compiler warning */
+
+ switch (type) {
+ case CURLINFO_TEXT:
+ fprintf(stderr, "== Info: %s", data);
+ default: /* in case a new one is introduced to shock us */
+ return 0;
+ case CURLINFO_HEADER_OUT:
+ text = "=> Send header";
+ break;
+ case CURLINFO_DATA_OUT:
+ text = "=> Send data";
+ break;
+ case CURLINFO_SSL_DATA_OUT:
+ text = "=> Send SSL data";
+ break;
+ case CURLINFO_HEADER_IN:
+ text = "<= Recv header";
+ break;
+ case CURLINFO_DATA_IN:
+ text = "<= Recv data";
+ break;
+ case CURLINFO_SSL_DATA_IN:
+ text = "<= Recv SSL data";
+ break;
+ }
+ dump(text, stderr, data, size, config->trace_ascii);
+ return 0;
+}
+
+/**
+ * This function is burrowed from the libcurl documentation
+ * @param ptr
+ * @param size
+ * @return void* to memory region
+ */
+static void* myrealloc(void* ptr, size_t size) {
+/* There might be a realloc() out there that doesn't like reallocing
+ * NULL pointers, so we take care of it here
+ * */
+ if(ptr)
+ return realloc(ptr, size);
+ else
+ return malloc(size);
+}
+
+/**
+ * This function is burrowed from the libcurl documentation
+ * @param ptr
+ * @param size
+ * @param nmemb
+ * @param data
+ * @return number of written bytes
+ */
+size_t WriteMemoryCallback(void* ptr, size_t size, size_t nmemb, void* data) {
+ size_t realsize = size * nmemb;
+ struct MemoryStruct* mem = (struct MemoryStruct *)data;
+ mem->memory = (char *)myrealloc(mem->memory, mem->size + realsize + 1);
+
+ if (mem->memory) {
+ memcpy(&(mem->memory[mem->size]), ptr, realsize);
+ mem->size += realsize;
+ mem->memory[mem->size] = 0;
+ }
+ return realsize;
+}
+
+/**
+ * This function is burrowed from the libcurl documentation
+ * @param ptr
+ * @param size
+ * @param nmemb
+ * @param data
+ * @return number of written bytes
+ */
+size_t WriteHeaderCallback(void* ptr, size_t size, size_t nmemb, void* data) {
+ size_t realsize = size * nmemb;
+ struct MemoryStruct* mem = (struct MemoryStruct *)data;
+ mem->memory = (char *)myrealloc(mem->memory, mem->size + realsize + 1);
+
+ if (mem->memory) {
+ memcpy(&(mem->memory[mem->size]), ptr, realsize);
+ mem->size += realsize;
+ mem->memory[mem->size] = 0;
+ }
+ return realsize;
+}
+
+/*
+size_t ReadMemoryCallback(void* ptr, size_t size, size_t nmemb, void* data){
+ struct MemoryStruct* mem = (struct MemoryStruct *)data;
+
+ memcpy(ptr, mem->memory, mem->size);
+ return mem->size;
+}
+*/
+
+/**
+ * Initialize caldav settings structure.
+ * @param settings @see caldav_settings
+ */
+void init_caldav_settings(caldav_settings* settings) {
+ settings->username = NULL;
+ settings->password = NULL;
+ settings->url = NULL;
+ settings->file = NULL;
+ settings->usehttps = FALSE;
+ settings->custom_cacert = NULL;
+ settings->verify_ssl_certificate = TRUE;
+ settings->debug = FALSE;
+ settings->trace_ascii = TRUE;
+ settings->ACTION = UNKNOWN;
+ settings->start = 0;
+ settings->end = 0;
+}
+
+/**
+ * Free memory assigned to caldav settings structure.
+ * @param settings @see caldav_settings
+ */
+void free_caldav_settings(caldav_settings* settings) {
+ if (settings->username) {
+ g_free(settings->username);
+ settings->username = NULL;
+ }
+ if (settings->password) {
+ g_free(settings->password);
+ settings->password = NULL;
+ }
+ if (settings->url) {
+ g_free(settings->url);
+ settings->url = NULL;
+ }
+ if (settings->file) {
+ g_free(settings->file);
+ settings->file = NULL;
+ }
+ if (settings->custom_cacert) {
+ g_free(settings->custom_cacert);
+ settings->custom_cacert = NULL;
+ }
+ settings->verify_ssl_certificate = TRUE;
+ settings->usehttps = FALSE;
+ settings->debug = FALSE;
+ settings->trace_ascii = TRUE;
+ settings->ACTION = UNKNOWN;
+ settings->start = 0;
+ settings->end = 0;
+}
+
+static gchar* place_after_hostname(const gchar* start, const gchar* stop) {
+ gchar* newpos = NULL;
+ gchar* pos = (gchar *) stop;
+ gboolean digit = TRUE;
+
+ if (pos && stop && strcmp(start, pos) != 0) {
+ while (*pos != ':' && strcmp(start, pos) != 0)
+ --pos;
+ if (pos > start) {
+ gchar* tmp = (gchar *) pos + 1;
+ /* is pos++ a port number */
+ while (*tmp != '/' && digit) {
+ if (isdigit(*tmp) != 0) {
+ digit = TRUE;
+ tmp++;
+ }
+ else
+ digit = FALSE;
+ }
+ if (digit) {
+ /* pos was a port number */
+ while (*pos != '@' && strcmp(start, pos) != 0)
+ --pos;
+ if (strcmp(start, pos) != 0)
+ newpos = pos;
+ }
+ else {
+ while (*pos != '@' && pos != stop)
+ pos++;
+ if (pos != stop)
+ newpos = pos;
+ }
+ }
+ else {
+ /* is a username present */
+ gchar* tmp = NULL;
+ while (*pos != '/' && pos != stop) {
+ if (*pos == '@')
+ tmp = pos;
+ pos++;
+ }
+ if (tmp && pos != stop)
+ newpos = tmp;
+ }
+ }
+ return newpos;
+}
+
+/**
+ * Parse URL
+ * @param settings @see caldav_settings
+ * @param url String containing URL to collection
+ */
+void parse_url(caldav_settings* settings, const char* url) {
+ char* start;
+ char* pos;
+ char* end;
+ char* login;
+
+ login = pos = end = start = NULL;
+ if (!url)
+ return;
+ if ((pos = strstr(url, "//")) != NULL) {
+ /* Does the URL use https ?*/
+ if (!g_ascii_strncasecmp(url,"https",5) && settings->usehttps == FALSE) {
+ settings->usehttps=TRUE;
+ }
+ start = g_strdup(&(*(pos + 2)));
+ if ((pos = place_after_hostname(start, strrchr(start, '\0') - 1)) != NULL) {
+ /* username and/or password present */
+ login = g_strndup(start, pos - start);
+ end = pos;
+ if ((pos = strrchr(login, ':')) != NULL) {
+ /* both username and password is present */
+ settings->username = g_strndup(login, pos - login);
+ settings->password = g_strdup(++pos);
+ }
+ else {
+ /* only username present */
+ settings->username = g_strdup(login);
+ settings->password = NULL;
+ }
+ g_free(login);
+ settings->url = g_strdup(++end);
+ }
+ else {
+ /* no username or password present */
+ settings->url = g_strdup(start);
+ settings->username = NULL;
+ settings->password = NULL;
+ }
+ g_free(start);
+ }
+}
+
+/**
+ * Find a specific HTTP header from last request
+ * @param header HTTP header to search for
+ * @param headers String of HTTP headers from last request
+ * @param lowcase Should string be returned in all lower case.
+ * @return The header found or NULL
+ */
+#define MAX_TOKENS 2
+gchar* get_response_header(
+ const char* header, gchar* headers, gboolean lowcase) {
+ gchar* line;
+ gchar* head = NULL;
+ gchar* oldhead = NULL;
+ gchar** buf;
+ gchar* header_list;
+ gchar* saveptr;
+
+ header_list = g_strdup(headers);
+ line = strtok_r(header_list, "\r\n", &saveptr);
+ if (line != NULL) {
+ do {
+ buf = g_strsplit(line, ":", MAX_TOKENS);
+ if (buf[1] != NULL) {
+ if (g_ascii_strcasecmp(buf[0], header) == 0) {
+ if (head) {
+ oldhead = head;
+ head = g_strconcat(head, ", ", buf[1], NULL);
+ g_free(oldhead);
+ }
+ else
+ head = g_strdup(buf[1]);
+ if (head)
+ g_strstrip(head);
+ }
+ }
+ g_strfreev(buf);
+ } while ((line = strtok_r(NULL, "\r\n", &saveptr)) != NULL);
+ }
+ g_free(header_list);
+ if (head)
+ return (lowcase) ? g_ascii_strdown(head, -1) : head;
+ else
+ return NULL;
+}
+
+static const char* VCAL_HEAD =
+"BEGIN:VCALENDAR\r\n"
+"PRODID:-//CalDAV Calendar//NONSGML libcaldav//EN\r\n"
+"VERSION:2.0\r\n";
+static const char* VCAL_FOOT = "END:VCALENDAR";
+
+/**
+ * Parse response from CalDAV server. Internal function.
+ * @param report Response from server
+ * @param element XML element to find
+ * @param type VCalendar element to find
+ * @param wrap Is this the final parsing or just a part
+ * @param recursive Stop after first match or not
+ * @return the parsed result
+ */
+static gchar* parse_caldav_report_wrap(
+ char* report, const char* element, const char* type,
+ gboolean wrap, gboolean recursive) {
+ char* pos;
+ char* start;
+ char* object;
+ char* tmp_report;
+ char* tmp;
+ gchar* response;
+ gchar* begin_type;
+ gchar* end_type;
+ gboolean keep_going = TRUE;
+
+ begin_type = g_strdup_printf("BEGIN:%s", type);
+ end_type = g_strdup_printf("END:%s", type);
+ pos = start = object = response = NULL;
+ tmp_report = g_strdup(report);
+ while ((pos = strstr(tmp_report, element)) != NULL && keep_going) {
+ pos = strchr(pos, '>');
+ if (!pos) {
+ break;
+ }
+ pos = &(*(pos + 1));
+ pos = strstr(pos, begin_type);
+ if (!pos) {
+ break;
+ }
+ object = &(*(pos + strlen(begin_type)));
+ object = g_strchug(object);
+ start = g_strdup(object);
+ if ((pos = strstr(start, end_type)) == NULL) {
+ g_free(start);
+ break;
+ }
+ object = g_strndup(start, strlen(start) - strlen(pos));
+ if (response) {
+ tmp = g_strdup(response);
+ g_free(response);
+ response = g_strdup_printf("%s%s\r\n%s%s\r\n",
+ tmp, begin_type, object, end_type);
+ g_free(tmp);
+ }
+ else {
+ if (wrap)
+ response = g_strdup_printf("%s%s\r\n%s%s\r\n",
+ VCAL_HEAD, begin_type, object, end_type);
+ else
+ response = g_strdup_printf("%s\r\n%s%s\r\n",
+ begin_type, object, end_type);
+ }
+ if (recursive) {
+ pos = strchr(pos, '>');
+ g_free(tmp_report);
+ tmp_report = g_strdup(&(*(pos + 1)));
+ }
+ else {
+ keep_going = FALSE;
+ }
+ g_free(start);
+ g_free(object);
+ }
+ g_free(tmp_report);
+ g_free(begin_type);
+ g_free(end_type);
+ if (wrap)
+ if (response) {
+ object = g_strdup(response);
+ g_free(response);
+ response = g_strdup_printf("%s%s", object, VCAL_FOOT);
+ g_free(object);
+ }
+ return response;
+}
+
+/**
+ * Parse response from CalDAV server
+ * @param report Response from server
+ * @param element XML element to find
+ * @param type VCalendar element to find
+ * @return the parsed result
+ */
+gchar* parse_caldav_report(char* report, const char* element, const char* type) {
+ gchar* response = NULL;
+ gchar* timezone = NULL;
+ gchar* temp = NULL;
+
+ if (!report || !element || !type)
+ return NULL;
+ /* test for VTIMEZONE.
+ * Only the first found will be used and this will then
+ * be the time zone for the entire report
+ */
+ timezone = parse_caldav_report_wrap(
+ report, element, "VTIMEZONE", FALSE, FALSE);
+ if (timezone) {
+ response = g_strdup_printf("%s%s", VCAL_HEAD, timezone);
+ g_free(timezone);
+ temp = parse_caldav_report_wrap(report, element, type, FALSE, TRUE);
+ if (temp) {
+ gchar* tmp = g_strdup(response);
+ g_free(response);
+ response = g_strdup_printf("%s%s%s", tmp, temp, VCAL_FOOT);
+ g_free(tmp);
+ g_free(temp);
+ }
+ else {
+ g_free(response);
+ return NULL;
+ }
+ }
+ else
+ response = parse_caldav_report_wrap(report, element, type, TRUE, TRUE);
+ return response;
+}
+
+/**
+ * Convert a time_t variable to CalDAV DateTime
+ * @param time a specific date and time
+ * @return the CalDAV DateTime
+ */
+gchar* get_caldav_datetime(time_t* time) {
+ struct tm *current;
+ gchar* datetime;
+
+ current = localtime(time);
+ datetime = g_strdup_printf("%d%.2d%.2dT%.2d%.2d%.2dZ",
+ current->tm_year + 1900, current->tm_mon + 1, current->tm_mday,
+ current->tm_hour, current->tm_min, current->tm_sec);
+ return datetime;
+}
+
+/**
+ * Create a random text string, using MD5. @see caldav_md5_hex_digest()
+ * @param text some text to randomize
+ * @return MD5 hash of text
+ */
+gchar* random_file_name(gchar* text) {
+ unsigned char* name;
+ gchar md5sum[33];
+
+ name = (unsigned char *) g_strdup(text);
+ caldav_md5_hex_digest(md5sum, name);
+ g_free(name);
+ return g_strdup(md5sum);
+}
+
+/**
+ * Does the event contain a UID element or not. If not add it.
+ * @param object A specific event
+ * @return event, eventually added UID
+ */
+gchar* verify_uid(gchar* object) {
+ gchar* uid;
+ gchar* newobj;
+ gchar* pos;
+
+ newobj = g_strdup(object);
+ uid = get_response_header("uid", object, TRUE);
+ if (!uid) {
+ object = g_strdup(newobj);
+ g_free(newobj);
+ pos = strstr(object, "END:VEVENT");
+ newobj = g_strndup(object, strlen(object) - strlen(pos));
+ newobj = g_strchomp(newobj);
+ uid = random_file_name(object);
+ gchar*tmp = g_strdup(newobj);
+ g_free(newobj);
+ newobj = g_strdup_printf("%s\r\nUID:libcaldav-%s@tempuri.org\r\n%s",
+ tmp, uid, pos);
+ g_free(uid);
+ g_free(tmp);
+ g_free(object);
+ }
+ else
+ g_free(uid);
+ /*uid = g_strdup(newobj);
+ g_free(newobj);*/
+ g_strchomp(newobj);
+ /*g_free(uid);*/
+ return newobj;
+}
+
+/**
+ * Fetch a URL from a XML element
+ * @param text String
+ * @return URL
+ */
+#define ELEM_HREF "href>"
+gchar* get_url(gchar* text) {
+ gchar* pos;
+ gchar* url = NULL;
+
+ if ((pos = strstr(text, ELEM_HREF)) == NULL)
+ return url;
+ pos = &(*(pos + strlen(ELEM_HREF)));
+ url = g_strndup(pos, strlen(pos) - strlen(strchr(pos, '<')));
+ return url;
+}
+
+/**
+ * Fetch any element from XML
+ * @param text String
+ * @param tag The element to look for
+ * @return element
+ */
+gchar* get_tag(const gchar* tag, gchar* text) {
+ gchar *pos;
+ gchar* res = NULL;
+ gchar* the_tag = NULL;
+
+ /*printf("%s\n", text);*/
+ the_tag = g_strdup_printf("<%s>", tag);
+ if ((pos = strstr(text, the_tag)) == NULL) {
+ g_free(the_tag);
+ return res;
+ }
+ pos = &(*(pos + strlen(the_tag)));
+ res = g_strndup(pos, strlen(pos) - strlen(strchr(pos, '<')));
+ g_free(the_tag);
+ return res;
+}
+
+/**
+ * Fetch the etag element from XML
+ * @param text String
+ * @return etag
+ */
+#define ELEM_ETAG "getetag"
+gchar* get_etag(gchar* text) {
+ gchar* etag = NULL;
+
+ etag = get_tag(ELEM_ETAG, text);
+ /* Maybe namespace prefixed */
+ if (!etag) {
+ etag = get_tag("D:getetag", text);
+ }
+ return etag;
+}
+
+/**
+ * Fetch host from URL
+ * @param url URL
+ * @return host
+ */
+gchar* get_host(gchar* url) {
+ gchar** buf;
+ gchar* result = NULL;
+
+ buf = g_strsplit(url, "/", 2);
+ if (buf[0]) {
+ result = g_strdup(buf[0]);
+ }
+ g_strfreev(buf);
+ return result;
+}
+
+/**
+ * rebuild a raw URL with https if needed from the settings
+ * @param settings caldav_settings
+ * @param uri URI to use instead of base
+ * @return URL
+ */
+
+gchar* rebuild_url(caldav_settings* settings, gchar* uri){
+ gchar* url = NULL;
+ gchar* mystr = NULL;
+ if (settings->usehttps) {
+ mystr = "https://";
+ } else {
+ mystr = "http://";
+ }
+ if (uri)
+ url = g_strdup_printf("%s%s", mystr, uri);
+ else
+ url = g_strdup_printf("%s%s", mystr,settings->url);
+
+ return url;
+}
+
+/**
+ * Prepare a curl connection
+ * @param settings caldav_settings
+ * @return CURL
+ */
+CURL* get_curl(caldav_settings* setting) {
+ CURL* curl;
+ gchar* userpwd = NULL;
+ gchar* url = NULL;
+
+ curl = curl_easy_init();
+ if (curl) {
+ if (setting->username) {
+ if (setting->password)
+ userpwd = g_strdup_printf("%s:%s",
+ setting->username, setting->password);
+ else
+ userpwd = g_strdup_printf("%s", setting->username);
+ curl_easy_setopt(curl, CURLOPT_USERPWD, userpwd);
+ g_free(userpwd);
+ }
+ if (setting->verify_ssl_certificate)
+ curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 2);
+ else {
+ curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0);
+ curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
+ }
+ if (setting->custom_cacert)
+ curl_easy_setopt(curl, CURLOPT_CAINFO, setting->custom_cacert);
+ curl_easy_setopt(curl, CURLOPT_USERAGENT, __CALDAV_USERAGENT);
+ url = rebuild_url(setting, NULL);
+ curl_easy_setopt(curl, CURLOPT_URL, url);
+ g_free(url);
+ }
+ return (curl) ? curl : NULL;
+}
diff --git a/src/.svn/text-base/caldav-utils.h.svn-base b/src/.svn/text-base/caldav-utils.h.svn-base
new file mode 100644
index 0000000..02c84d7
--- /dev/null
+++ b/src/.svn/text-base/caldav-utils.h.svn-base
@@ -0,0 +1,221 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __CALDAV_UTILS_H__
+#define __CALDAV_UTILS_H__
+
+#include <glib.h>
+#include <stdlib.h>
+#include <curl/curl.h>
+#include "caldav.h"
+
+/**
+ * @typedef struct _CALDAV_SETTINGS caldav_settings
+ * A pointer to a struct _CALDAV_SETTINGS
+ */
+typedef struct _CALDAV_SETTINGS caldav_settings;
+
+/**
+ * @struct _CALDAV_SETTINGS
+ * A struct used to exchange all user input between various parts
+ * of the library
+ */
+struct _CALDAV_SETTINGS {
+ gchar* username;
+ gchar* password;
+ gchar* url;
+ gchar* file;
+ gboolean usehttps;
+ gboolean verify_ssl_certificate;
+ gchar* custom_cacert;
+ gboolean debug;
+ gboolean use_locking;
+ char trace_ascii;
+ CALDAV_ACTION ACTION;
+ time_t start;
+ time_t end;
+};
+
+/**
+ * @typedef struct MemoryStruct memory_ptr
+ * A pointer to a struct MemoryStruct
+ */
+typedef struct MemoryStruct memory_ptr;
+
+/**
+ * @struct MemoryStruct
+ * Used to hold messages between the CalDAV server and the library
+ */
+struct MemoryStruct {
+ char *memory;
+ size_t size;
+};
+
+/** @struct config_data
+ * Used to exchange user options to the library
+ */
+struct config_data {
+ char trace_ascii;
+};
+
+/**
+ * This function is burrowed from the libcurl documentation
+ * @param text
+ * @param stream
+ * @param ptr
+ * @param size
+ * @param nohex
+ */
+void dump(const char* text, FILE* stream, char* ptr, size_t size, char nohex);
+
+/**
+ * This function is burrowed from the libcurl documentation
+ * @param handle
+ * @param type
+ * @param data
+ * @param size
+ * @param userp
+ * @return
+ */
+int my_trace(CURL* handle, curl_infotype type, char* data, size_t size, void* userp);
+
+/**
+ * This function is burrowed from the libcurl documentation
+ * @param ptr
+ * @param size
+ * @return void* to memory region
+ */
+size_t WriteMemoryCallback(void* ptr, size_t size, size_t nmemb, void* data);
+
+/**
+ * This function is burrowed from the libcurl documentation
+ * @param ptr
+ * @param size
+ * @param nmemb
+ * @param data
+ * @return number of written bytes
+ */
+size_t WriteHeaderCallback(void* ptr, size_t size, size_t nmemb, void* data);
+
+/*size_t ReadMemoryCallback(void* ptr, size_t size, size_t nmemb, void* data);*/
+
+/**
+ * Initialize caldav settings structure.
+ * @param settings @see caldav_settings
+ */
+void init_caldav_settings(caldav_settings* settings);
+
+/**
+ * Free momory assigned to caldav settings structure.
+ * @param settings @see caldav_settings
+ */
+void free_caldav_settings(caldav_settings* settings);
+
+/**
+ * Parse URL
+ * @param settings @see caldav_settings
+ * @param url String containing URL to collection
+ */
+void parse_url(caldav_settings* settings, const char* url);
+
+/**
+ * Find a specific HTTP header from last request
+ * @param header HTTP header to search for
+ * @param headers String of HTTP headers from last request
+ * @param lowcase Should string be returned in all lower case.
+ * @return The header found or NULL
+ */
+gchar* get_response_header(
+ const char* header, gchar* headers, gboolean lowcase);
+
+/**
+ * Parse response from CalDAV server
+ * @param report Response from server
+ * @param element XML element to find
+ * @param type VCalendar element to find
+ * @return the parsed result
+ */
+gchar* parse_caldav_report(char* report, const char* element, const char* type);
+
+/**
+ * Convert a time_t variable to CalDAV DateTime
+ * @param time a specific date and time
+ * @return the CalDAV DateTime
+ */
+gchar* get_caldav_datetime(time_t* time);
+
+/**
+ * Create a random text string, using MD5. @see caldav_md5_hex_digest()
+ * @param text some text to randomize
+ * @return MD5 hash of text
+ */
+gchar* random_file_name(gchar* text);
+
+/**
+ * Does the event contain a UID element or not. If not add it.
+ * @param object A specific event
+ * @return event, eventually added UID
+ */
+gchar* verify_uid(gchar* object);
+
+/**
+ * Fetch a URL from a XML element
+ * @param text String
+ * @return URL
+ */
+gchar* get_url(gchar* text);
+
+/**
+ * Fetch host from URL
+ * @param url URL
+ * @return host
+ */
+gchar* get_host(gchar* url);
+
+/**
+ * Fetch the etag element from XML
+ * @param text String
+ * @return etag
+ */
+gchar* get_etag(gchar* text);
+
+/**
+ * Fetch any element from XML
+ * @param text String
+ * @return element
+ */
+gchar* get_tag(const gchar* tag, gchar* text);
+
+
+
+/**
+ * rebuild a raw URL with https if needed from the settings
+ * @param settings caldav_settings
+ * @return URL
+ */
+gchar* rebuild_url(caldav_settings* setting, gchar* uri);
+
+/**
+ * Prepare a curl connection
+ * @param settings caldav_settings
+ * @return CURL
+ */
+CURL* get_curl(caldav_settings* setting);
+
+#endif
diff --git a/src/.svn/text-base/caldav.c.svn-base b/src/.svn/text-base/caldav.c.svn-base
new file mode 100644
index 0000000..193429c
--- /dev/null
+++ b/src/.svn/text-base/caldav.c.svn-base
@@ -0,0 +1,745 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "caldav.h"
+#include "caldav-utils.h"
+#include "get-caldav-report.h"
+#include "add-caldav-object.h"
+#include "delete-caldav-object.h"
+#include "modify-caldav-object.h"
+#include "get-display-name.h"
+#include "options-caldav-server.h"
+#include "get-freebusy-report.h"
+#include <curl/curl.h>
+#include <glib.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+static void init_runtime(runtime_info* info) {
+ if (! info)
+ return;
+ if (! info->error)
+ info->error = g_new0(caldav_error, 1);
+ if (! info->options) {
+ info->options = g_new0(debug_curl, 1);
+ info->options->trace_ascii = 1;
+ info->options->debug = 0;
+ info->options->verify_ssl_certificate = TRUE;
+ info->options->use_locking = TRUE;
+ info->options->custom_cacert = NULL;
+ }
+}
+
+/**
+ * @param curl An instance of libcurl.
+ * @param settings Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. URL is part of the structure. [http://][username:password@]host[:port]/url-path.
+ * See (RFC1738).
+ * @return FALSE (zero) mens URL does not reference a CalDAV calendar
+ * resource. TRUE if the URL does reference a CalDAV calendar resource.
+ */
+static gboolean test_caldav_enabled(CURL* curl,
+ caldav_settings* settings,
+ caldav_error* error) {
+ return caldav_getoptions(curl, settings, NULL, error, TRUE);
+}
+
+/*
+ * @param settings An instance of caldav_settings. @see caldav_settings
+ * @return TRUE if there was an error. Error can be in libcurl, in libcaldav,
+ * or an error related to the CalDAV protocol.
+ */
+static gboolean make_caldav_call(caldav_settings* settings,
+ runtime_info* info) {
+ CURL* curl;
+ gboolean result = FALSE;
+
+ g_return_val_if_fail(info != NULL, TRUE);
+
+ curl = get_curl(settings);
+ if (!curl) {
+ info->error->str = g_strdup("Could not initialize libcurl");
+ g_free(settings->file);
+ settings->file = NULL;
+ return TRUE;
+ }
+ if (!test_caldav_enabled(curl, settings, info->error)) {
+ g_free(settings->file);
+ settings->file = NULL;
+ curl_easy_cleanup(curl);
+ return TRUE;
+ }
+ curl_easy_cleanup(curl);
+ switch (settings->ACTION) {
+ case GETALL: result = caldav_getall(settings, info->error); break;
+ case GET: result = caldav_getrange(settings, info->error); break;
+ case ADD: result = caldav_add(settings, info->error); break;
+ case DELETE: result = caldav_delete(settings, info->error); break;
+ case MODIFY: result = caldav_modify(settings, info->error); break;
+ case GETCALNAME: result = caldav_getname(settings, info->error); break;
+ case FREEBUSY: result = caldav_freebusy(settings, info->error); break;
+ default: break;
+ }
+ return result;
+}
+
+/**
+ * Function for adding a new event.
+ * @param object Appointment following ICal format (RFC2445). Receiver is
+ * responsible for freeing the memory.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_add_object(const char* object,
+ const char* URL,
+ runtime_info* info) {
+ caldav_settings settings;
+ CALDAV_RESPONSE caldav_response;
+
+ g_return_val_if_fail(info != NULL, TRUE);
+
+ init_runtime(info);
+ init_caldav_settings(&settings);
+ settings.file = g_strdup(object);
+ settings.ACTION = ADD;
+ if (info->options->debug)
+ settings.debug = TRUE;
+ else
+ settings.debug = FALSE;
+ if (info->options->trace_ascii)
+ settings.trace_ascii = 1;
+ else
+ settings.trace_ascii = 0;
+ if (info->options->use_locking)
+ settings.use_locking = 1;
+ else
+ settings.use_locking = 0;
+ parse_url(&settings, URL);
+ gboolean res = make_caldav_call(&settings, info);
+ if (res) {
+ if (info->error->code > 0) {
+ switch (info->error->code) {
+ case 403: caldav_response = FORBIDDEN; break;
+ case 409: caldav_response = CONFLICT; break;
+ case 423: caldav_response = LOCKED; break;
+ case 501: caldav_response = NOTIMPLEMENTED; break;
+ default: caldav_response = CONFLICT; break;
+ }
+ }
+ else {
+ /* fall-back to conflicting state */
+ caldav_response = CONFLICT;
+ }
+ }
+ else {
+ caldav_response = OK;
+ }
+ free_caldav_settings(&settings);
+ return caldav_response;
+}
+
+/**
+ * Function for deleting an event.
+ * @param object Appointment following ICal format (RFC2445). Receiver is
+ * responsible for freeing the memory.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_delete_object(const char* object,
+ const char* URL,
+ runtime_info* info) {
+ caldav_settings settings;
+ CALDAV_RESPONSE caldav_response;
+
+ g_return_val_if_fail(info != NULL, TRUE);
+
+ init_runtime(info);
+ init_caldav_settings(&settings);
+ settings.file = g_strdup(object);
+ settings.ACTION = DELETE;
+ if (info->options->debug)
+ settings.debug = TRUE;
+ else
+ settings.debug = FALSE;
+ if (info->options->trace_ascii)
+ settings.trace_ascii = 1;
+ else
+ settings.trace_ascii = 0;
+ if (info->options->use_locking)
+ settings.use_locking = 1;
+ else
+ settings.use_locking = 0;
+ parse_url(&settings, URL);
+ gboolean res = make_caldav_call(&settings, info);
+ if (res) {
+ if (info->error->code > 0) {
+ switch (info->error->code) {
+ case 403: caldav_response = FORBIDDEN; break;
+ case 409: caldav_response = CONFLICT; break;
+ case 423: caldav_response = LOCKED; break;
+ case 501: caldav_response = NOTIMPLEMENTED; break;
+ default: caldav_response = CONFLICT; break;
+ }
+ }
+ else {
+ /* fall-back to conflicting state */
+ caldav_response = CONFLICT;
+ }
+ }
+ else {
+ caldav_response = OK;
+ }
+ free_caldav_settings(&settings);
+ return caldav_response;
+}
+
+/**
+ * Function for modifying an event.
+ * @param object Appointment following ICal format (RFC2445). Receiver is
+ * responsible for freeing the memory.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_modify_object(const char* object,
+ const char* URL,
+ runtime_info* info) {
+ caldav_settings settings;
+ CALDAV_RESPONSE caldav_response;
+
+ g_return_val_if_fail(info != NULL, TRUE);
+
+ init_runtime(info);
+ init_caldav_settings(&settings);
+ settings.file = g_strdup(object);
+ settings.ACTION = MODIFY;
+ if (info->options->debug)
+ settings.debug = TRUE;
+ else
+ settings.debug = FALSE;
+ if (info->options->trace_ascii)
+ settings.trace_ascii = 1;
+ else
+ settings.trace_ascii = 0;
+ if (info->options->use_locking)
+ settings.use_locking = 1;
+ else
+ settings.use_locking = 0;
+ parse_url(&settings, URL);
+ gboolean res = make_caldav_call(&settings, info);
+ if (res) {
+ if (info->error->code > 0) {
+ switch (info->error->code) {
+ case 403: caldav_response = FORBIDDEN; break;
+ case 409: caldav_response = CONFLICT; break;
+ case 423: caldav_response = LOCKED; break;
+ case 501: caldav_response = NOTIMPLEMENTED; break;
+ default: caldav_response = CONFLICT; break;
+ }
+ }
+ else {
+ /* fall-back to conflicting state */
+ caldav_response = CONFLICT;
+ }
+ }
+ else {
+ caldav_response = OK;
+ }
+ free_caldav_settings(&settings);
+ return caldav_response;
+}
+
+/**
+ * Function for getting a collection of events determined by time range.
+ * @param result A pointer to struct _response where the result is to stored.
+ * @see response. Caller is responsible for freeing the memory.
+ * @param start time_t variable specifying start and end for range. Both
+ * are included in range.
+ * @param end time_t variable specifying start and end for range. Both
+ * are included in range.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_get_object(response *result,
+ time_t start,
+ time_t end,
+ const char* URL,
+ runtime_info* info) {
+ caldav_settings settings;
+ CALDAV_RESPONSE caldav_response;
+
+ g_return_val_if_fail(info != NULL, TRUE);
+
+ init_runtime(info);
+ if (!result) {
+ result = malloc(sizeof(response *));
+ memset(result, '\0', sizeof(response *));
+ }
+ init_caldav_settings(&settings);
+ settings.ACTION = GET;
+ settings.start = start;
+ settings.end = end;
+ if (info->options->debug)
+ settings.debug = TRUE;
+ else
+ settings.debug = FALSE;
+ if (info->options->trace_ascii)
+ settings.trace_ascii = 1;
+ else
+ settings.trace_ascii = 0;
+ if (info->options->use_locking)
+ settings.use_locking = 1;
+ else
+ settings.use_locking = 0;
+ parse_url(&settings, URL);
+ gboolean res = make_caldav_call(&settings, info);
+ if (res) {
+ result->msg = NULL;
+ if (info->error->code > 0) {
+ switch (info->error->code) {
+ case 403: caldav_response = FORBIDDEN; break;
+ case 409: caldav_response = CONFLICT; break;
+ case 423: caldav_response = LOCKED; break;
+ case 501: caldav_response = NOTIMPLEMENTED; break;
+ default: caldav_response = CONFLICT; break;
+ }
+ }
+ else {
+ /* fall-back to conflicting state */
+ caldav_response = CONFLICT;
+ }
+ }
+ else {
+ result->msg = g_strdup(settings.file);
+ caldav_response = OK;
+ }
+ free_caldav_settings(&settings);
+ return caldav_response;
+}
+
+/**
+ * Function for getting all events from the collection.
+ * @param result A pointer to struct _response where the result is to stored.
+ * @see response. Caller is responsible for freeing the memory.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_getall_object(response* result,
+ const char* URL,
+ runtime_info* info) {
+ caldav_settings settings;
+ CALDAV_RESPONSE caldav_response;
+
+ g_return_val_if_fail(info != NULL, TRUE);
+
+ init_runtime(info);
+ if (!result) {
+ result = malloc(sizeof(response *));
+ memset(result, '\0', sizeof(response *));
+ }
+ init_caldav_settings(&settings);
+ settings.ACTION = GETALL;
+ if (info->options->debug)
+ settings.debug = TRUE;
+ else
+ settings.debug = FALSE;
+ if (info->options->trace_ascii)
+ settings.trace_ascii = 1;
+ else
+ settings.trace_ascii = 0;
+ if (info->options->use_locking)
+ settings.use_locking = 1;
+ else
+ settings.use_locking = 0;
+ parse_url(&settings, URL);
+ gboolean res = make_caldav_call(&settings, info);
+ if (res) {
+ result->msg = NULL;
+ if (info->error->code > 0) {
+ switch (info->error->code) {
+ case 403: caldav_response = FORBIDDEN; break;
+ case 409: caldav_response = CONFLICT; break;
+ case 423: caldav_response = LOCKED; break;
+ case 501: caldav_response = NOTIMPLEMENTED; break;
+ default: caldav_response = CONFLICT; break;
+ }
+ }
+ else {
+ /* fall-back to conflicting state */
+ caldav_response = CONFLICT;
+ }
+ }
+ else {
+ result->msg = g_strdup(settings.file);
+ caldav_response = OK;
+ }
+ free_caldav_settings(&settings);
+ return caldav_response;
+}
+
+/**
+ * Function for getting the stored display name for the collection.
+ * @param result A pointer to struct _response where the result is to stored.
+ * @see response. Caller is responsible for freeing the memory.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_get_displayname(response* result,
+ const char* URL,
+ runtime_info* info) {
+ caldav_settings settings;
+ CALDAV_RESPONSE caldav_response;
+
+ g_return_val_if_fail(info != NULL, TRUE);
+
+ init_runtime(info);
+ if (!result) {
+ result = malloc(sizeof(response *));
+ memset(result, '\0', sizeof(response *));
+ }
+ init_caldav_settings(&settings);
+ settings.ACTION = GETCALNAME;
+ if (info->options->debug)
+ settings.debug = TRUE;
+ else
+ settings.debug = FALSE;
+ if (info->options->trace_ascii)
+ settings.trace_ascii = 1;
+ else
+ settings.trace_ascii = 0;
+ if (info->options->use_locking)
+ settings.use_locking = 1;
+ else
+ settings.use_locking = 0;
+ parse_url(&settings, URL);
+ gboolean res = make_caldav_call(&settings, info);
+ if (res) {
+ result->msg = NULL;
+ if (info->error->code > 0) {
+ switch (info->error->code) {
+ case 403: caldav_response = FORBIDDEN; break;
+ case 409: caldav_response = CONFLICT; break;
+ case 423: caldav_response = LOCKED; break;
+ case 501: caldav_response = NOTIMPLEMENTED; break;
+ default: caldav_response = CONFLICT; break;
+ }
+ }
+ else {
+ /* fall-back to conflicting state */
+ caldav_response = CONFLICT;
+ }
+ }
+ else {
+ result->msg = g_strdup(settings.file);
+ caldav_response = OK;
+ }
+ free_caldav_settings(&settings);
+ return caldav_response;
+}
+
+/**
+ * Function to test wether a calendar resource is CalDAV enabled or not.
+ * @param URL Defines CalDAV resource. Receiver is responsible for
+ * freeing the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @result 0 (zero) means no CalDAV support, otherwise CalDAV support
+ * detechted.
+ */
+int caldav_enabled_resource(const char* URL, runtime_info* info) {
+ CURL* curl;
+ caldav_settings settings;
+ struct config_data data;
+
+ g_return_val_if_fail(info != NULL, TRUE);
+
+ init_runtime(info);
+ init_caldav_settings(&settings);
+
+ parse_url(&settings, URL);
+ curl = get_curl(&settings);
+ if (!curl) {
+ info->error->code = -1;
+ info->error->str = g_strdup("Could not initialize libcurl");
+ settings.file = NULL;
+ return TRUE;
+ }
+
+ if (info->options->trace_ascii)
+ data.trace_ascii = 1;
+ else
+ data.trace_ascii = 0;
+ if (info->options->use_locking)
+ settings.use_locking = 1;
+ else
+ settings.use_locking = 0;
+
+ if (info->options->debug) {
+ curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
+ curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
+ }
+ gboolean res = test_caldav_enabled(curl, &settings, info->error);
+ free_caldav_settings(&settings);
+ curl_easy_cleanup(curl);
+ return (res && (info->error->code == 0 || info->error->code == 200)) ? 1 : 0;
+}
+
+/**
+ * Function for getting free/busy information.
+ * @param result A pointer to struct _response where the result is to stored.
+ * @see response. Caller is responsible for freeing the memory.
+ * @param start time_t variable specifying start and end for range. Both
+ * are included in range.
+ * @param end time_t variable specifying start and end for range. Both
+ * are included in range.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_get_freebusy(response *result,
+ time_t start,
+ time_t end,
+ const char* URL,
+ runtime_info* info) {
+ caldav_settings settings;
+ CALDAV_RESPONSE caldav_response;
+
+ g_return_val_if_fail(info != NULL, TRUE);
+
+ init_runtime(info);
+ if (!result) {
+ result = malloc(sizeof(response *));
+ memset(result, '\0', sizeof(response *));
+ }
+ init_caldav_settings(&settings);
+ settings.ACTION = FREEBUSY;
+ settings.start = start;
+ settings.end = end;
+ if (info->options->debug)
+ settings.debug = TRUE;
+ else
+ settings.debug = FALSE;
+ if (info->options->trace_ascii)
+ settings.trace_ascii = 1;
+ else
+ settings.trace_ascii = 0;
+ if (info->options->use_locking)
+ settings.use_locking = 1;
+ else
+ settings.use_locking = 0;
+ parse_url(&settings, URL);
+ gboolean res = make_caldav_call(&settings, info);
+ if (res) {
+ result->msg = NULL;
+ if (info->error->code > 0) {
+ switch (info->error->code) {
+ case 403: caldav_response = FORBIDDEN; break;
+ case 409: caldav_response = CONFLICT; break;
+ case 423: caldav_response = LOCKED; break;
+ case 501: caldav_response = NOTIMPLEMENTED; break;
+ default: caldav_response = CONFLICT; break;
+ }
+ }
+ else {
+ /* fall-back to conflicting state */
+ caldav_response = CONFLICT;
+ }
+ }
+ else {
+ result->msg = g_strdup(settings.file);
+ caldav_response = OK;
+ }
+ free_caldav_settings(&settings);
+ return caldav_response;
+}
+
+/**
+ * Function which supports sending various options inside the library.
+ * @param curl_options A struct debug_curl. See debug_curl.
+ */
+void caldav_set_options(debug_curl curl_options) {
+}
+
+/**
+ * @deprecated Function to call in case of errors.
+ * Caller provides a pointer to a local caldav_error structure.
+ * Caldav_get_error will initialize pointer if NULL.
+ * Caller is responsible for freeing returned memory.
+ * After the first call the internal error buffer is reset.
+ * @param lib_error A pointer to a struct _caldav_error. @see _caldav_error
+ * @return An initialized caldav_error pointer to memory where error
+ * messages can be found from the last call to the library.
+ */
+caldav_error* caldav_get_error(caldav_error* lib_error) {
+ if (!lib_error) {
+ lib_error = g_new0(caldav_error, 1);
+ }
+ return lib_error;
+}
+
+/**
+ * Function for freeing memory for a previous initialization of a
+ * caldav_error. @see caldav_get_error()
+ * Caller provides a pointer to a local caldav_error structure.
+ * @param lib_error A pointer to a struct _caldav_error. @see _caldav_error
+ */
+void caldav_free_error(caldav_error* lib_error) {
+ if (lib_error->str)
+ g_free(lib_error->str);
+ g_free(lib_error);
+ lib_error = NULL;
+}
+
+/**
+ * Function to call to get a list of supported CalDAV options for a server
+ * @param URL Defines CalDAV resource. Receiver is responsible for
+ * freeing the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @result A list of available options or NULL in case of any error.
+ */
+char** caldav_get_server_options(const char* URL, runtime_info* info) {
+ CURL* curl;
+ caldav_settings settings;
+ response server_options;
+ gchar** option_list = NULL;
+ gchar** tmp;
+ gboolean res = FALSE;
+
+ g_return_val_if_fail(info != NULL, NULL);
+
+ init_runtime(info);
+ tmp = option_list = NULL;
+ init_caldav_settings(&settings);
+
+ parse_url(&settings, URL);
+ curl = get_curl(&settings);
+ if (!curl) {
+ info->error->code = -1;
+ info->error->str = g_strdup("Could not initialize libcurl");
+ settings.file = NULL;
+ return NULL;
+ }
+ if (info->options->use_locking)
+ settings.use_locking = 1;
+ else
+ settings.use_locking = 0;
+
+ res = caldav_getoptions(curl, &settings, &server_options, info->error, FALSE);
+ if (res) {
+ if (server_options.msg) {
+ option_list = g_strsplit(server_options.msg, ", ", 0);
+ tmp = &(*(option_list));
+ while (*tmp) {
+ g_strstrip(*tmp++);
+ }
+ }
+ }
+ free_caldav_settings(&settings);
+ curl_easy_cleanup(curl);
+ return (option_list) ? option_list : NULL;
+}
+
+/**
+ * Function for getting an initialized runtime_info structure
+ * @return runtime_info. @see runtime_info
+ */
+runtime_info* caldav_get_runtime_info() {
+ runtime_info* rt_info;
+
+ rt_info = g_new0(runtime_info, 1);
+ rt_info->error = g_new0(caldav_error, 1);
+ rt_info->options = g_new0(debug_curl, 1);
+
+ return rt_info;
+}
+
+/**
+ * Function for freeing memory for a previous initialization of an info
+ * structure
+ * @param info Address to a pointer to a runtime_info structure. @see
+ * runtime_info
+ */
+void caldav_free_runtime_info(runtime_info** info) {
+ runtime_info* ri;
+
+ if (*info) {
+ ri = *info;
+ if (ri->error) {
+ if (ri->error->str)
+ g_free(ri->error->str);
+ g_free(ri->error);
+ ri->error = NULL;
+ }
+ if (ri->options) {
+ if (ri->options->custom_cacert)
+ g_free(ri->options->custom_cacert);
+ g_free(ri->options);
+ ri->options = NULL;
+ }
+ g_free(ri);
+ *info = ri = NULL;
+ }
+}
+
+/**
+ * Function for getting an initialized response structure
+ * @return response. @see _response
+ */
+response* caldav_get_response() {
+ response* r;
+
+ r = g_new0(response, 1);
+
+ return r;
+}
+
+/**
+ * Function for freeing memory for a previous initialization of an response
+ * structure
+ * @param info Address to a pointer to a response structure. @see
+ * _response
+ */
+void caldav_free_response(response** resp) {
+ response* r;
+
+ if (*resp) {
+ r = *resp;
+ if (r->msg)
+ g_free(r->msg);
+ g_free(r);
+ *resp = r = NULL;
+ }
+}
diff --git a/src/.svn/text-base/caldav.h.svn-base b/src/.svn/text-base/caldav.h.svn-base
new file mode 100644
index 0000000..28cb24e
--- /dev/null
+++ b/src/.svn/text-base/caldav.h.svn-base
@@ -0,0 +1,343 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/**
+ * @file caldav.h
+ * @brief interface to the caldav library.
+ * The library conforms to RFC4791. For further information follow this
+ * link http://www.ietf.org/rfc/rfc4791.txt
+ */
+
+/**
+ * @mainpage
+ * This document is the documentation for the public interface to libcaldav.
+ * If you want to study the implementation look for the developers API.
+ *
+ * The libray and documentation is Copyright (c) 2008 Michael Rasmussen
+ * (mir@datanom.net)
+ *
+ * License for the source code.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * License for the documentation.
+ *
+ * Permission is granted to copy, distribute and/or modify this document
+ * under the terms of the GNU Free Documentation License, Version 1.2
+ * or any later version published by the Free Software Foundation;
+ * with no Invariant Sections, no Front-Cover Texts, and no Back-Cover
+ * Texts.
+ */
+
+#ifndef __CALDAV_H__
+#define __CALDAV_H__
+
+#include <time.h>
+
+/* For debug purposes */
+/**
+ * @typedef struct debug_curl
+ * A struct used to set internal options in the library
+ */
+typedef struct {
+ int trace_ascii; /** @var int trace_ascii
+ * 0 or 1
+ */
+ int debug; /** @var int debug
+ * 0 or 1
+ */
+ int verify_ssl_certificate;
+ int use_locking;
+ char* custom_cacert;
+} debug_curl;
+
+/**
+ * @typedef struct _caldav_error caldav_error
+ * Pointer to a caldav_error structure
+ */
+typedef struct _caldav_error caldav_error;
+
+/**
+ * @struct _caldav_error
+ * A struct for storing error codes and messages
+ */
+struct _caldav_error {
+ long code; /**
+ * @var long code
+ * if < 0 internal error > 0 CalDAV protocol error.
+ */
+ char* str; /** @var char* str
+ * For storing human readable error message
+ */
+};
+
+/**
+ * @typedef struct runtime_info
+ * Pointer to a runtime structure holding debug and error information
+ */
+typedef struct {
+ caldav_error* error;
+ debug_curl* options;
+} runtime_info;
+
+/* CalDAV is defined in RFC4791 */
+
+/* Buffer to hold response */
+/**
+ * @typedef struct _response response
+ * Pointer to a _response structure
+ */
+typedef struct _response response;
+
+/**
+ * @struct _response
+ * A struct used for returning messages from the library to users
+ */
+struct _response {
+ char* msg; /** @var char* msg
+ * String for storing response
+ */
+};
+
+/**
+ * @enum CALDAV_ACTION specifies supported CalDAV actions.
+ * UNKNOWN. An unknown action.
+ * ADD. Add a CalDAV calendar object.
+ * DELETE. Delete a CalDAV calendar object.
+ * MODIFY. Modify a CalDAV calendar object.
+ * GET. Get one or more CalDAV calendar object(s).
+ * GETALL. Get all CalDAV calendar objects.
+ */
+typedef enum {
+ UNKNOWN,
+ ADD,
+ DELETE,
+ FREEBUSY,
+ MODIFY,
+ GET,
+ GETALL,
+ GETCALNAME,
+ ISCALDAV,
+ OPTIONS
+} CALDAV_ACTION;
+
+/**
+ * @enum CALDAV_RESPONSE specifies CalDAV error states.
+ * OK (HTTP 200). Request was satisfied.
+ * FORBIDDEN (HTTP 403). Access not allowed. Dont repeat request.
+ * CONFLICT (HTTP 409). Conflict between current state of CalDAV collection
+ * and request. Client must solve the conflict and then resend request.
+ * LOCKED (HTTP 423). Locking failed.
+ */
+typedef enum {
+ OK,
+ FORBIDDEN,
+ CONFLICT,
+ LOCKED,
+ NOTIMPLEMENTED
+} CALDAV_RESPONSE;
+
+
+#ifndef __CALDAV_USERAGENT
+#define __CALDAV_USERAGENT "libcurl-agent/0.1"
+#endif
+
+
+/**
+ * Function for adding a new event.
+ * @param object Appointment following ICal format (RFC2445). Receiver is
+ * responsible for freeing the memory.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @param info Pointer to a runtime_info structure. @see runtime_info
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_add_object(const char* object,
+ const char* URL,
+ runtime_info* info);
+
+/**
+ * Function for deleting an event.
+ * @param object Appointment following ICal format (RFC2445). Receiver is
+ * responsible for freeing the memory.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @param info Pointer to a runtime_info structure. @see runtime_info
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_delete_object(const char* object,
+ const char* URL,
+ runtime_info* info);
+
+/**
+ * Function for modifying an event.
+ * @param object Appointment following ICal format (RFC2445). Receiver is
+ * responsible for freeing the memory.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @param info Pointer to a runtime_info structure. @see runtime_info
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_modify_object(const char* object,
+ const char* URL,
+ runtime_info* info);
+
+/**
+ * Function for getting a collection of events determined by time range.
+ * @param result A pointer to struct _response where the result is to stored.
+ * @see response. Caller is responsible for freeing the memory.
+ * @param start time_t variable specifying start for range. Included in search.
+ * @param end time_t variable specifying end for range. Included in search.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @param info Pointer to a runtime_info structure. @see runtime_info
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_get_object(response* result,
+ time_t start,
+ time_t end,
+ const char* URL,
+ runtime_info* info);
+
+/**
+ * Function for getting all events from the collection.
+ * @param result A pointer to struct _response where the result is to stored.
+ * @see response. Caller is responsible for freeing the memory.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @param info Pointer to a runtime_info structure. @see runtime_info
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_getall_object(response* result,
+ const char* URL,
+ runtime_info* info);
+
+/**
+ * Function for getting the stored display name for the collection.
+ * @param result A pointer to struct _response where the result is to stored.
+ * @see response. Caller is responsible for freeing the memory.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @param info Pointer to a runtime_info structure. @see runtime_info
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_get_displayname(response* result,
+ const char* URL,
+ runtime_info* info);
+
+/**
+ * Function to test wether a calendar resource is CalDAV enabled or not.
+ * @param URL Defines CalDAV resource. Receiver is responsible for
+ * freeing the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @param info Pointer to a runtime_info structure. @see runtime_info
+ * @result 0 (zero) means no CalDAV support, otherwise CalDAV support
+ * detechted.
+ */
+int caldav_enabled_resource(const char* URL, runtime_info* info);
+
+/**
+ * Function for getting free/busy information.
+ * @param result A pointer to struct _response where the result is to stored.
+ * @see response. Caller is responsible for freeing the memory.
+ * @param start time_t variable specifying start and end for range. Both
+ * are included in range.
+ * @param end time_t variable specifying start and end for range. Both
+ * are included in range.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_get_freebusy(response *result,
+ time_t start,
+ time_t end,
+ const char* URL,
+ runtime_info* info);
+
+/**
+ * @deprecated Always returns an initialized empty caldav_error
+ * Function to call in case of errors.
+ * Caller provides a pointer to a local caldav_error structure.
+ * Caldav_get_error will initialize pointer if NULL.
+ * Caller is responsible for freeing returned memory.
+ * After the first call the internal error buffer is reset.
+ * @param lib_error A pointer to a struct _caldav_error. @see _caldav_error
+ * @return An initialized caldav_error pointer to memory where error
+ * messages can be found from the last call to the library.
+ */
+caldav_error* caldav_get_error(caldav_error* lib_error);
+
+/**
+ * Function for freeing memory for a previous initialization of a
+ * caldav_error. @see caldav_get_error()
+ * Caller provides a pointer to a local caldav_error structure.
+ * @param lib_error A pointer to a struct _caldav_error. @see _caldav_error
+ */
+void caldav_free_error(caldav_error* lib_error);
+
+/* Setting various options in library */
+
+/**
+ * @deprecated Does nothing
+ * Function which supports sending various options inside the library.
+ * @param curl_options A struct debug_curl. See debug_curl.
+ */
+void caldav_set_options(debug_curl curl_options);
+
+/**
+ * Function to call to get a list of supported CalDAV options for a server
+ * @param URL Defines CalDAV resource. Receiver is responsible for
+ * freeing the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @param info Pointer to a runtime_info structure. @see runtime_info
+ * @result A list of available options or NULL in case of any error.
+ */
+char** caldav_get_server_options(const char* URL, runtime_info* info);
+
+/**
+ * Function for getting an initialized runtime_info structure
+ * @return runtime_info. @see runtime_info
+ */
+runtime_info* caldav_get_runtime_info();
+
+/**
+ * Function for freeing memory for a previous initialization of an info
+ * structure
+ * @param info Address to a pointer to a runtime_info structure. @see
+ * runtime_info
+ */
+void caldav_free_runtime_info(runtime_info** info);
+
+/**
+ * Function for getting an initialized response structure
+ * @return response. @see _response
+ */
+response* caldav_get_response();
+
+/**
+ * Function for freeing memory for a previous initialization of an response
+ * structure
+ * @param info Address to a pointer to a response structure. @see
+ * _response
+ */
+void caldav_free_response(response** info);
+
+#endif
diff --git a/src/.svn/text-base/delete-caldav-object.c.svn-base b/src/.svn/text-base/delete-caldav-object.c.svn-base
new file mode 100644
index 0000000..adaa916
--- /dev/null
+++ b/src/.svn/text-base/delete-caldav-object.c.svn-base
@@ -0,0 +1,284 @@
+/* vim: set textwidth=80 tabstop=4: */
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "delete-caldav-object.h"
+#include "lock-caldav-object.h"
+#include <glib.h>
+#include <curl/curl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/**
+ * A static literal string containing the first part of the calendar query.
+ * The actual UID to use for the query is added at runtime.
+ */
+static char* search_head =
+"<?xml version=\"1.0\" encoding=\"utf-8\" ?>"
+"<C:calendar-query xmlns:D=\"DAV:\""
+" xmlns:C=\"urn:ietf:params:xml:ns:caldav\">"
+" <D:prop>"
+" <D:getetag/>"
+" <C:calendar-data/>"
+" </D:prop>"
+" <C:filter>"
+" <C:comp-filter name=\"VCALENDAR\">"
+" <C:comp-filter name=\"VEVENT\">"
+" <C:prop-filter name=\"UID\">";
+
+/**
+ * A static literal string containing the last part of the calendar query
+ */
+static char* search_tail =
+"</C:prop-filter>"
+" </C:comp-filter>"
+" </C:comp-filter>"
+" </C:filter>"
+"</C:calendar-query>";
+
+/**
+ * Function for deleting an event.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_delete(caldav_settings* settings, caldav_error* error) {
+ CURL* curl;
+ CURLcode res = 0;
+ char error_buf[CURL_ERROR_SIZE];
+ struct config_data data;
+ struct MemoryStruct chunk;
+ struct MemoryStruct headers;
+ struct curl_slist *http_header = NULL;
+ gchar* search;
+ gchar* uid;
+ gboolean LOCKSUPPORT = FALSE;
+ gchar* lock_token = NULL;
+ gboolean result = FALSE;
+
+ chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
+ chunk.size = 0; /* no data at this point */
+ headers.memory = NULL;
+ headers.size = 0;
+
+ curl = get_curl(settings);
+ if (!curl) {
+ error->code = -1;
+ error->str = g_strdup("Could not initialize libcurl");
+ g_free(settings->file);
+ settings->file = NULL;
+ return TRUE;
+ }
+
+ http_header = curl_slist_append(http_header,
+ "Content-Type: application/xml; charset=\"utf-8\"");
+ http_header = curl_slist_append(http_header, "Depth: infinity");
+ http_header = curl_slist_append(http_header, "Expect:");
+ http_header = curl_slist_append(http_header, "Transfer-Encoding:");
+ data.trace_ascii = settings->trace_ascii;
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
+ /* we pass our 'chunk' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
+ /* we pass our 'headers' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
+ curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
+ if (settings->debug) {
+ curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
+ curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
+ }
+ gchar* file = g_strdup(settings->file);
+ if ((uid = get_response_header("uid", file, FALSE)) == NULL) {
+ g_free(file);
+ error->code = 1;
+ error->str = g_strdup("Error: Missing required UID for object");
+ return TRUE;
+ }
+ g_free(file);
+ /*
+ * ICalendar server does not support collation
+ * <C:text-match collation=\"i;ascii-casemap\">%s</C:text-match>
+ */
+ search = g_strdup_printf(
+ "%s\r\n<C:text-match>%s</C:text-match>\r\n%s",
+ search_head, uid, search_tail);
+ g_free(uid);
+ /* enable uploading */
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, search);
+ curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, strlen(search));
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "REPORT");
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ res = curl_easy_perform(curl);
+ g_free(search);
+ curl_slist_free_all(http_header);
+ http_header = NULL;
+ if (res != 0) {
+ error->code = -1;
+ error->str = g_strdup_printf("%s", error_buf);
+ g_free(settings->file);
+ settings->file = NULL;
+ result = TRUE;
+ }
+ else {
+ long code;
+ res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
+ if (code != 207) {
+ error->code = code;
+ error->str = g_strdup(chunk.memory);
+ result = TRUE;
+ }
+ else {
+ /* enable uploading */
+ gchar* url = NULL;
+ gchar* etag = NULL;
+ url = get_url(chunk.memory);
+ if (url) {
+ etag = get_etag(chunk.memory);
+ if (etag) {
+ gchar* host = get_host(settings->url);
+ if (host) {
+ file = g_strdup(url);
+ g_free(url);
+ url = g_strdup_printf("%s%s", host, file);
+ g_free(file);
+ g_free(host);
+ }
+ else {
+ g_free(etag);
+ g_free(url);
+ url = NULL;
+ }
+ }
+ else {
+ g_free(url);
+ url = NULL;
+ }
+ }
+ if (url) {
+ int lock = 0;
+ caldav_error lock_error;
+
+ file = g_strdup(etag);
+ g_free(etag);
+ etag = g_strdup_printf("If-Match: %s", file);
+ g_free(file);
+ http_header = curl_slist_append(http_header, etag);
+ g_free(etag);
+ http_header = curl_slist_append(http_header,
+ "Content-Type: text/calendar; charset=\"utf-8\"");
+ http_header = curl_slist_append(http_header, "Expect:");
+ http_header = curl_slist_append(
+ http_header, "Transfer-Encoding:");
+ if (settings->use_locking)
+ LOCKSUPPORT = caldav_lock_support(settings, &lock_error);
+ else
+ LOCKSUPPORT = FALSE;
+ if (LOCKSUPPORT) {
+ lock_token = caldav_lock_object(url, settings, &lock_error);
+ if (lock_token) {
+ http_header = curl_slist_append(
+ http_header, g_strdup_printf(
+ "If: (%s)", lock_token));
+ }
+ /*
+ * If error code is 423 (Resource is LOCKED) bail out
+ */
+ else if (lock_error.code == 423) {
+ lock = -1;
+ }
+ /*
+ * If error code is 501 (Not implemented) we continue
+ * hoping for the best.
+ */
+ else if (lock_error.code == 501) {
+ lock_token = g_strdup("");
+ }
+ else {
+ lock = -1;
+ }
+ }
+ if (! LOCKSUPPORT || (LOCKSUPPORT && lock_token && lock_error.code != 423)) {
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
+ curl_easy_setopt(curl, CURLOPT_URL, rebuild_url(settings, url));
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, NULL);
+ curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, 0);
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "DELETE");
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ res = curl_easy_perform(curl);
+ if (LOCKSUPPORT && lock_token) {
+ caldav_unlock_object(
+ lock_token, url, settings, &lock_error);
+ }
+ }
+ g_free(url);
+ g_free(lock_token);
+ if (res != 0 || lock < 0) {
+ /* Is this a lock_error don't change error*/
+ if (lock == 0 || lock_error.code == 423) {
+ error->code = code;
+ error->str = g_strdup(chunk.memory);
+ }
+ else {
+ error->code = lock_error.code;
+ error->str = g_strdup(lock_error.str);
+ }
+ result = TRUE;
+ g_free(settings->file);
+ settings->file = NULL;
+ }
+ else {
+ long code;
+ res = curl_easy_getinfo(
+ curl, CURLINFO_RESPONSE_CODE, &code);
+ if (code != 204) {
+ error->code = code;
+ error->str = g_strdup(chunk.memory);
+ result = TRUE;
+ }
+ }
+ curl_slist_free_all(http_header);
+ }
+ else {
+ error->code = code;
+ if (chunk.memory)
+ error->str = g_strdup(chunk.memory);
+ else
+ error->str = g_strdup("No object found");
+ result = TRUE;
+ }
+ }
+ }
+ if (chunk.memory)
+ free(chunk.memory);
+ if (headers.memory)
+ free(headers.memory);
+ curl_easy_cleanup(curl);
+ return result;
+}
diff --git a/src/.svn/text-base/delete-caldav-object.h.svn-base b/src/.svn/text-base/delete-caldav-object.h.svn-base
new file mode 100644
index 0000000..7576a29
--- /dev/null
+++ b/src/.svn/text-base/delete-caldav-object.h.svn-base
@@ -0,0 +1,35 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __DELETE_CALDAV_OBJECT_H__
+#define __DELETE_CALDAV_OBJECT_H__
+
+#include "caldav-utils.h"
+#include "caldav.h"
+
+/**
+ * Function for deleting an event.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_delete(caldav_settings* settings, caldav_error* error);
+
+#endif
+
diff --git a/src/.svn/text-base/get-caldav-report.c.svn-base b/src/.svn/text-base/get-caldav-report.c.svn-base
new file mode 100644
index 0000000..52b4e28
--- /dev/null
+++ b/src/.svn/text-base/get-caldav-report.c.svn-base
@@ -0,0 +1,254 @@
+/* vim: set textwidth=80 tabstop=4 smarttab: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "get-caldav-report.h"
+#include <glib.h>
+#include <curl/curl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/**
+ * A static literal string containing the calendar query for fetching
+ * all events from collection.
+ */
+static const char* getall_request =
+"<?xml version=\"1.0\" encoding=\"utf-8\" ?>"
+"<C:calendar-query xmlns:D=\"DAV:\""
+" xmlns:C=\"urn:ietf:params:xml:ns:caldav\">"
+" <D:prop>"
+" <D:getetag/>"
+" <C:calendar-data/>"
+" </D:prop>"
+" <C:filter>"
+" <C:comp-filter name=\"VCALENDAR\">"
+" <C:comp-filter name=\"VEVENT\"/>"
+" </C:comp-filter>"
+" </C:filter>"
+"</C:calendar-query>\r\n";
+
+/**
+ * A static literal string containing the first part of the calendar query.
+ * The actual VEVENT to search for is added at runtime.
+ */
+static const char* getrange_request_head =
+"<?xml version=\"1.0\" encoding=\"utf-8\" ?>"
+/*"<C:calendar-query xmlns:D=\"DAV:\""
+" xmlns:C=\"urn:ietf:params:xml:ns:caldav\">"
+" <D:prop>"*/
+"<C:calendar-query xmlns:C=\"urn:ietf:params:xml:ns:caldav\">"
+" <D:prop xmlns:D=\"DAV:\">"
+/*" <D:getetag/>"*/
+" <C:calendar-data/>"
+" </D:prop>"
+" <C:filter>"
+" <C:comp-filter name=\"VCALENDAR\">"
+" <C:comp-filter name=\"VEVENT\">";
+
+/**
+ * A static literal string containing the last part of the calendar query
+ */
+static const char* getrange_request_foot =
+" </C:comp-filter>"
+" </C:comp-filter>"
+" </C:filter>"
+"</C:calendar-query>\r\n";
+
+/**
+ * Function for getting all events from collection.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_getall(caldav_settings* settings, caldav_error* error) {
+ CURL* curl;
+ CURLcode res = 0;
+ char error_buf[CURL_ERROR_SIZE];
+ struct config_data data;
+ struct MemoryStruct chunk;
+ struct MemoryStruct headers;
+ struct curl_slist *http_header = NULL;
+ gboolean result = FALSE;
+
+ chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
+ chunk.size = 0; /* no data at this point */
+ headers.memory = NULL;
+ headers.size = 0;
+
+ curl = get_curl(settings);
+ if (!curl) {
+ error->code = -1;
+ error->str = g_strdup("Could not initialize libcurl");
+ g_free(settings->file);
+ settings->file = NULL;
+ return TRUE;
+ }
+
+ http_header = curl_slist_append(http_header,
+ "Content-Type: application/xml; charset=\"utf-8\"");
+ http_header = curl_slist_append(http_header, "Depth: 1");
+ http_header = curl_slist_append(http_header, "Expect:");
+ http_header = curl_slist_append(http_header, "Transfer-Encoding:");
+ data.trace_ascii = settings->trace_ascii;
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
+ /* we pass our 'chunk' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
+ /* we pass our 'headers' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
+ /* enable uploading */
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, getall_request);
+ curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, strlen(getall_request));
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
+ curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
+ if (settings->debug) {
+ curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
+ curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
+ }
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "REPORT");
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ res = curl_easy_perform(curl);
+ if (res != 0) {
+ error->code = -1;
+ error->str = g_strdup_printf("%s", error_buf);
+ g_free(settings->file);
+ settings->file = NULL;
+ result = TRUE;
+ }
+ else {
+ long code;
+ res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
+ if (code != 207) {
+ error->code = code;
+ error->str = g_strdup(headers.memory);
+ result = TRUE;
+ }
+ else {
+ gchar* report;
+ report = parse_caldav_report(
+ chunk.memory, "calendar-data", "VEVENT");
+ settings->file = g_strdup(report);
+ g_free(report);
+ }
+ }
+ if (chunk.memory)
+ free(chunk.memory);
+ if (headers.memory)
+ free(headers.memory);
+ curl_slist_free_all(http_header);
+ curl_easy_cleanup(curl);
+ return result;
+}
+
+/**
+ * Function for getting all events within a time range from collection.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_getrange(caldav_settings* settings, caldav_error* error) {
+ CURL* curl;
+ CURLcode res = 0;
+ char error_buf[CURL_ERROR_SIZE + 1];
+ struct config_data data;
+ struct MemoryStruct chunk;
+ struct MemoryStruct headers;
+ struct curl_slist *http_header = NULL;
+ gboolean result = FALSE;
+ gchar* request = NULL;
+
+ chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
+ chunk.size = 0; /* no data at this point */
+ headers.memory = NULL;
+ headers.size = 0;
+
+ curl = get_curl(settings);
+ if (!curl) {
+ error->code = -1;
+ error->str = g_strdup("Could not initialize libcurl");
+ g_free(settings->file);
+ settings->file = NULL;
+ return TRUE;
+ }
+
+ http_header = curl_slist_append(http_header,
+ "Content-Type: application/xml; charset=\"utf-8\"");
+ http_header = curl_slist_append(http_header, "Depth: 1");
+ http_header = curl_slist_append(http_header, "Expect:");
+ http_header = curl_slist_append(http_header, "Transfer-Encoding:");
+ data.trace_ascii = settings->trace_ascii;
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
+ /* we pass our 'chunk' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
+ /* we pass our 'headers' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
+ curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
+ if (settings->debug) {
+ curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
+ curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
+ }
+ request = g_strdup_printf(
+ "%s\r\n<C:time-range start=\"%s\"\r\n end=\"%s\"/>\r\n%s",
+ getrange_request_head, get_caldav_datetime(&settings->start),
+ get_caldav_datetime(&settings->end), getrange_request_foot);
+ /* enable uploading */
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, request);
+ curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, strlen(request));
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "REPORT");
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ res = curl_easy_perform(curl);
+ if (res != 0) {
+ error->code = -1;
+ error->str = g_strdup_printf("%s", error_buf);
+ g_free(settings->file);
+ settings->file = NULL;
+ result = TRUE;
+ }
+ else {
+ gchar* report;
+ report = parse_caldav_report(chunk.memory, "calendar-data", "VEVENT");
+ settings->file = g_strdup(report);
+ g_free(report);
+ }
+ g_free(request);
+ if (chunk.memory)
+ free(chunk.memory);
+ if (headers.memory)
+ free(headers.memory);
+ curl_slist_free_all(http_header);
+ curl_easy_cleanup(curl);
+ return result;
+}
+
diff --git a/src/.svn/text-base/get-caldav-report.h.svn-base b/src/.svn/text-base/get-caldav-report.h.svn-base
new file mode 100644
index 0000000..7bce7f3
--- /dev/null
+++ b/src/.svn/text-base/get-caldav-report.h.svn-base
@@ -0,0 +1,43 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __GET_CALDAV_REPORT_H__
+#define __GET_CALDAV_REPORT_H__
+
+#include "caldav-utils.h"
+#include "caldav.h"
+#include <glib.h>
+
+/**
+ * Function for getting all events from collection.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_getall(caldav_settings* settings, caldav_error* error);
+
+/**
+ * Function for getting all events within a time range from collection.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_getrange(caldav_settings* settings, caldav_error* error);
+
+#endif
diff --git a/src/.svn/text-base/get-display-name.c.svn-base b/src/.svn/text-base/get-display-name.c.svn-base
new file mode 100644
index 0000000..c776713
--- /dev/null
+++ b/src/.svn/text-base/get-display-name.c.svn-base
@@ -0,0 +1,138 @@
+/* vim: set textwidth=80 tabstop=4 smarttab: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "get-caldav-report.h"
+#include <glib.h>
+#include <curl/curl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/**
+ * A static literal string containing the calendar query for fetching
+ * the stored display name for the collection.
+ */
+static const char* getname_request =
+"<?xml version=\"1.0\" encoding=\"utf-8\" ?>"
+"<D:propfind xmlns:D=\"DAV:\""
+" xmlns:C=\"urn:ietf:params:xml:ns:caldav\">"
+" <D:prop>"
+" <D:displayname/>"
+" </D:prop>"
+"</D:propfind>\r\n";
+
+/**
+ * Function for getting the display name from collection.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_getname(caldav_settings* settings, caldav_error* error) {
+ CURL* curl;
+ CURLcode res = 0;
+ char error_buf[CURL_ERROR_SIZE];
+ struct config_data data;
+ struct MemoryStruct chunk;
+ struct MemoryStruct headers;
+ struct curl_slist *http_header = NULL;
+ gboolean result = FALSE;
+
+ chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
+ chunk.size = 0; /* no data at this point */
+ headers.memory = NULL;
+ headers.size = 0;
+
+ curl = get_curl(settings);
+ if (!curl) {
+ error->code = -1;
+ error->str = g_strdup("Could not initialize libcurl");
+ g_free(settings->file);
+ settings->file = NULL;
+ return TRUE;
+ }
+
+ http_header = curl_slist_append(http_header,
+ "Content-Type: application/xml; charset=\"utf-8\"");
+ http_header = curl_slist_append(http_header, "Depth: 0");
+ http_header = curl_slist_append(http_header, "Expect:");
+ http_header = curl_slist_append(http_header, "Transfer-Encoding:");
+ data.trace_ascii = settings->trace_ascii;
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
+ /* we pass our 'chunk' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
+ /* we pass our 'headers' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
+ /* enable uploading */
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, getname_request);
+ curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, strlen(getname_request));
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
+ curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
+ if (settings->debug) {
+ curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
+ curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
+ }
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "PROPFIND");
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ res = curl_easy_perform(curl);
+ if (res != 0) {
+ error->code = -1;
+ error->str = g_strdup_printf("%s", error_buf);
+ g_free(settings->file);
+ settings->file = NULL;
+ result = TRUE;
+ }
+ else {
+ long code;
+ res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
+ if (code != 207) {
+ error->code = code;
+ error->str = g_strdup(headers.memory);
+ result = TRUE;
+ }
+ else {
+ gchar* displayname;
+ displayname = get_tag("displayname", chunk.memory);
+ /* Maybe namespace prefixed */
+ if (!displayname) {
+ displayname = get_tag("D:displayname", chunk.memory);
+ }
+ settings->file = (displayname) ?
+ g_strdup(displayname) : g_strdup("");
+ g_free(displayname);
+ }
+ }
+ if (chunk.memory)
+ free(chunk.memory);
+ if (headers.memory)
+ free(headers.memory);
+ curl_slist_free_all(http_header);
+ curl_easy_cleanup(curl);
+ return result;
+}
+
diff --git a/src/.svn/text-base/get-display-name.h.svn-base b/src/.svn/text-base/get-display-name.h.svn-base
new file mode 100644
index 0000000..5c80272
--- /dev/null
+++ b/src/.svn/text-base/get-display-name.h.svn-base
@@ -0,0 +1,34 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __GET_DISPLAY_NAME_H__
+#define __GET_DISPLAY_NAME_H__
+
+#include "caldav-utils.h"
+
+/**
+ * Function for getting the display name from collection.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_getname(caldav_settings* settings, caldav_error* error);
+
+#endif
+
diff --git a/src/.svn/text-base/lock-caldav-object.c.svn-base b/src/.svn/text-base/lock-caldav-object.c.svn-base
new file mode 100644
index 0000000..1ddf926
--- /dev/null
+++ b/src/.svn/text-base/lock-caldav-object.c.svn-base
@@ -0,0 +1,292 @@
+/* vim: set textwidth=80 tabstop=4: */
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "lock-caldav-object.h"
+#include "options-caldav-server.h"
+#include <glib.h>
+#include <curl/curl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/**
+ * A static literal string containing the lock query.
+ */
+static char* lock_query =
+"<?xml version=\"1.0\" encoding=\"utf-8\" ?>"
+"<D:lockinfo xmlns:D=\"DAV:\">"
+" <D:lockscope><D:exclusive/></D:lockscope>"
+" <D:locktype><D:write/></D:locktype>"
+"</D:lockinfo>";
+
+/**
+ * Function which requests a lock on a calendar resource
+ * @param URI The resource to request lock on.
+ * @param settings @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return The Lock-Token or NULL in case of error
+ */
+gchar* caldav_lock_object(
+ gchar* URI, caldav_settings* settings, caldav_error* error) {
+ CURL* curl;
+ CURLcode res = 0;
+ char error_buf[CURL_ERROR_SIZE];
+ struct config_data data;
+ struct MemoryStruct chunk;
+ struct MemoryStruct headers;
+ struct curl_slist *http_header = NULL;
+ gchar* lock_token = NULL;
+ gchar* url;
+
+ if (! caldav_lock_support(settings, error))
+ return lock_token;
+ chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
+ chunk.size = 0; /* no data at this point */
+ headers.memory = NULL;
+ headers.size = 0;
+
+ curl = get_curl(settings);
+ if (!curl) {
+ error->code = -1;
+ error->str = g_strdup("Could not initialize libcurl");
+ g_free(settings->file);
+ settings->file = NULL;
+ return lock_token;
+ }
+
+ http_header = curl_slist_append(http_header,
+ "Content-Type: application/xml; charset=\"utf-8\"");
+ http_header = curl_slist_append(http_header, "Timeout: Second-300");
+ http_header = curl_slist_append(http_header, "Expect:");
+ http_header = curl_slist_append(http_header, "Transfer-Encoding:");
+ data.trace_ascii = settings->trace_ascii;
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
+ /* we pass our 'chunk' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
+ /* we pass our 'headers' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
+ curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
+ if (settings->debug) {
+ curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
+ curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
+ }
+ if (settings->usehttps) {
+ url = g_strdup_printf("https://%s", URI);
+ } else {
+ url = g_strdup_printf("http://%s", URI);
+ }
+ curl_easy_setopt(curl, CURLOPT_URL, url);
+ g_free(url);
+ /* enable uploading */
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, lock_query);
+ curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, strlen(lock_query));
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "LOCK");
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ res = curl_easy_perform(curl);
+ curl_slist_free_all(http_header);
+ if (res != 0) {
+ error->code = -1;
+ error->str = g_strdup_printf("%s", error_buf);
+ g_free(settings->file);
+ settings->file = NULL;
+ }
+ else {
+ long code;
+ res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
+ if (code != 200) {
+ gchar* status = get_tag("status", chunk.memory);
+ if (status && strstr(status, "423") != NULL) {
+ error->code = 423;
+ error->str = g_strdup(status);
+ }
+ else {
+ error->code = code;
+ error->str = g_strdup(chunk.memory);
+ }
+ g_free(status);
+ }
+ else {
+ lock_token = get_response_header(
+ "Lock-Token", headers.memory, FALSE);
+ }
+ }
+ if (chunk.memory)
+ free(chunk.memory);
+ if (headers.memory)
+ free(headers.memory);
+ curl_easy_cleanup(curl);
+ return lock_token;
+}
+
+/**
+ * Function which requests to have a lock removed from a calendar resource
+ * @param lock_token A privious aquired Lock-Token
+ * @param URI The resource to request unlock on.
+ * @param settings @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return False in case the lock could not be removed. True otherwise.
+ */
+gboolean caldav_unlock_object(gchar* lock_token, gchar* URI,
+ caldav_settings* settings, caldav_error* error) {
+ CURL* curl;
+ CURLcode res = 0;
+ char error_buf[CURL_ERROR_SIZE];
+ struct config_data data;
+ struct MemoryStruct chunk;
+ struct MemoryStruct headers;
+ struct curl_slist *http_header = NULL;
+ gboolean result = FALSE;
+ gchar* url;
+
+ if (! caldav_lock_support(settings, error))
+ return result;
+ chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
+ chunk.size = 0; /* no data at this point */
+ headers.memory = NULL;
+ headers.size = 0;
+
+ curl = get_curl(settings);
+ if (!curl) {
+ error->code = -1;
+ error->str = g_strdup("Could not initialize libcurl");
+ g_free(settings->file);
+ settings->file = NULL;
+ return TRUE;
+ }
+
+ http_header = curl_slist_append(http_header,
+ g_strdup_printf("Lock-Token: %s", lock_token));
+ http_header = curl_slist_append(http_header, "Expect:");
+ http_header = curl_slist_append(http_header, "Transfer-Encoding:");
+ data.trace_ascii = settings->trace_ascii;
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
+ /* we pass our 'chunk' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
+ /* we pass our 'headers' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
+ curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
+ if (settings->debug) {
+ curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
+ curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
+ }
+ if (settings->usehttps) {
+ url = g_strdup_printf("https://%s", URI);
+ } else {
+ url = g_strdup_printf("http://%s", URI);
+ }
+ curl_easy_setopt(curl, CURLOPT_URL, url);
+ g_free(url);
+ /* enable uploading */
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "UNLOCK");
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ res = curl_easy_perform(curl);
+ curl_slist_free_all(http_header);
+ if (res != 0) {
+ error->code = -1;
+ error->str = g_strdup_printf("%s", error_buf);
+ g_free(settings->file);
+ settings->file = NULL;
+ }
+ else {
+ long code;
+ res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
+ if (code != 204) {
+ error->code = code;
+ error->str = g_strdup(chunk.memory);
+ }
+ else {
+ result = TRUE;
+ }
+ }
+ if (chunk.memory)
+ free(chunk.memory);
+ if (headers.memory)
+ free(headers.memory);
+ curl_easy_cleanup(curl);
+ return result;
+}
+
+/**
+ * Function to test whether the server supports locking or not. Searching
+ * for PROP LOCK. If LOCK is present then according to RFC4791 PROP UNLOCK
+ * must also be present.
+ * @param settings @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return True if locking is supported by the server. False otherwise
+ */
+gboolean caldav_lock_support(caldav_settings* settings, caldav_error* error) {
+ gboolean found = FALSE;
+ gchar* url = NULL;
+ gchar* mystr = NULL;
+ runtime_info* info;
+
+ info = caldav_get_runtime_info();
+ info->options->verify_ssl_certificate = settings->verify_ssl_certificate;
+ info->options->custom_cacert = g_strdup(settings->custom_cacert);
+ if (settings->usehttps) {
+ mystr = g_strdup("https://");
+ } else {
+ mystr = g_strdup("http://");
+ }
+
+
+ if (settings->username && settings->password) {
+ url = g_strdup_printf("%s%s:%s@%s",
+ mystr, settings->username, settings->password, settings->url);
+ }
+ else if (settings->username) {
+ url = g_strdup_printf("%s%s@%s",
+ mystr, settings->username, settings->url);
+ }
+ else {
+ url = g_strdup_printf("%s%s", mystr, settings->url);
+ }
+ gchar** options = caldav_get_server_options(url, info);
+ g_free(url);
+ gchar** tmp = options;
+ caldav_free_runtime_info(&info);
+ while (*options) {
+ if (strcmp(*options++, "LOCK") == 0) {
+ found = TRUE;
+ break;
+ }
+ }
+ g_strfreev(tmp);
+ g_free(mystr);
+ return found;
+}
+
+
diff --git a/src/.svn/text-base/lock-caldav-object.h.svn-base b/src/.svn/text-base/lock-caldav-object.h.svn-base
new file mode 100644
index 0000000..6dd884f
--- /dev/null
+++ b/src/.svn/text-base/lock-caldav-object.h.svn-base
@@ -0,0 +1,55 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __LOCK_CALDAV_OBJECT_H__
+#define __LOCK_CALDAV_OBJECT_H__
+
+#include "caldav-utils.h"
+#include "caldav.h"
+
+/**
+ * Function which requests a lock on a calendar resource
+ * @param URI The resource to request lock on.
+ * @param settings @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return The Lock-Token or NULL in case of error
+ */
+gchar* caldav_lock_object(
+ gchar* URI, caldav_settings* settings, caldav_error* error);
+
+/**
+ * Function which requests to have a lock removed from a calendar resource
+ * @param lock_token A privious aquired Lock-Token
+ * @param URI The resource to request unlock on.
+ * @param settings @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return False in case the lock could not be removed. True otherwise.
+ */
+gboolean caldav_unlock_object(gchar* lock_token, gchar* URI,
+ caldav_settings* settings, caldav_error* error);
+
+/**
+ * Function to test whether the server supports locking or not
+ * @param settings @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return True if locking is supported by the server. False otherwise
+ */
+gboolean caldav_lock_support(caldav_settings* settings, caldav_error* error);
+
+#endif
diff --git a/src/.svn/text-base/md5.c.svn-base b/src/.svn/text-base/md5.c.svn-base
new file mode 100644
index 0000000..62d4b2d
--- /dev/null
+++ b/src/.svn/text-base/md5.c.svn-base
@@ -0,0 +1,442 @@
+/** md5.c - MD5 Message-Digest Algorithm
+ * Copyright (C) 1995, 1996, 1998, 1999 Free Software Foundation, Inc.
+ *
+ * according to the definition of MD5 in RFC 1321 from April 1992.
+ * NOTE: This is *not* the same file as the one from glibc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 3, or (at your option) any
+ * later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
+ * heavily modified for GnuPG by <werner.koch@guug.de>.
+ * modified again for Sylpheed by <wk@gnupg.org> 2001-02-11.
+ */
+
+
+/* Test values:
+ * "" D4 1D 8C D9 8F 00 B2 04 E9 80 09 98 EC F8 42 7E
+ * "a" 0C C1 75 B9 C0 F1 B6 A8 31 C3 99 E2 69 77 26 61
+ * "abc 90 01 50 98 3C D2 4F B0 D6 96 3F 7D 28 E1 7F 72
+ * "message digest" F9 6B 69 7D 7C B7 93 8D 52 5A 2F 31 AA F1 61 D0
+ */
+
+#include <config.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+
+#include "md5.h"
+
+/****************
+ * Rotate a 32 bit integer by n bytes
+ */
+#if defined(__GNUC__) && defined(__i386__)
+static inline u32
+rol( u32 x, int n)
+{
+ __asm__("roll %%cl,%0"
+ :"=r" (x)
+ :"0" (x),"c" (n));
+ return x;
+}
+#else
+#define rol(x,n) ( ((x) << (n)) | ((x) >> (32-(n))) )
+#endif
+
+
+static void
+md5_init(MD5_CONTEXT *ctx)
+{
+ ctx->A = 0x67452301;
+ ctx->B = 0xefcdab89;
+ ctx->C = 0x98badcfe;
+ ctx->D = 0x10325476;
+
+ ctx->nblocks = 0;
+ ctx->count = 0;
+ ctx->finalized = 0;
+}
+
+/* These are the four functions used in the four steps of the MD5 algorithm
+ and defined in the RFC 1321. The first function is a little bit optimized
+ (as found in Colin Plumbs public domain implementation). */
+/* #define FF(b, c, d) ((b & c) | (~b & d)) */
+#define FF(b, c, d) (d ^ (b & (c ^ d)))
+#define FG(b, c, d) FF (d, b, c)
+#define FH(b, c, d) (b ^ c ^ d)
+#define FI(b, c, d) (c ^ (b | ~d))
+
+
+/****************
+ * transform n*64 bytes
+ */
+static void
+transform(MD5_CONTEXT *ctx, const unsigned char *data)
+{
+ u32 correct_words[16];
+ u32 A = ctx->A;
+ u32 B = ctx->B;
+ u32 C = ctx->C;
+ u32 D = ctx->D;
+ u32 *cwp = correct_words;
+
+#ifdef BIG_ENDIAN_HOST
+ {
+ int i;
+ unsigned char *p2;
+ const unsigned char *p1;
+
+ for (i = 0, p1 = data, p2 = (unsigned char*)correct_words;
+ i < 16; i++, p2 += 4) {
+ p2[3] = *p1++;
+ p2[2] = *p1++;
+ p2[1] = *p1++;
+ p2[0] = *p1++;
+ }
+ }
+#else
+ memcpy(correct_words, data, 64);
+#endif
+
+
+#define OP(a, b, c, d, s, T) \
+ do { \
+ a += FF (b, c, d) + (*cwp++) + T; \
+ a = rol(a, s); \
+ a += b; \
+ } while (0)
+
+ /* Before we start, one word about the strange constants.
+ They are defined in RFC 1321 as
+
+ T[i] = (int) (4294967296.0 * fabs (sin (i))), i=1..64
+ */
+
+ /* Round 1. */
+ OP (A, B, C, D, 7, 0xd76aa478);
+ OP (D, A, B, C, 12, 0xe8c7b756);
+ OP (C, D, A, B, 17, 0x242070db);
+ OP (B, C, D, A, 22, 0xc1bdceee);
+ OP (A, B, C, D, 7, 0xf57c0faf);
+ OP (D, A, B, C, 12, 0x4787c62a);
+ OP (C, D, A, B, 17, 0xa8304613);
+ OP (B, C, D, A, 22, 0xfd469501);
+ OP (A, B, C, D, 7, 0x698098d8);
+ OP (D, A, B, C, 12, 0x8b44f7af);
+ OP (C, D, A, B, 17, 0xffff5bb1);
+ OP (B, C, D, A, 22, 0x895cd7be);
+ OP (A, B, C, D, 7, 0x6b901122);
+ OP (D, A, B, C, 12, 0xfd987193);
+ OP (C, D, A, B, 17, 0xa679438e);
+ OP (B, C, D, A, 22, 0x49b40821);
+
+#undef OP
+#define OP(f, a, b, c, d, k, s, T) \
+ do { \
+ a += f (b, c, d) + correct_words[k] + T; \
+ a = rol(a, s); \
+ a += b; \
+ } while (0)
+
+ /* Round 2. */
+ OP (FG, A, B, C, D, 1, 5, 0xf61e2562);
+ OP (FG, D, A, B, C, 6, 9, 0xc040b340);
+ OP (FG, C, D, A, B, 11, 14, 0x265e5a51);
+ OP (FG, B, C, D, A, 0, 20, 0xe9b6c7aa);
+ OP (FG, A, B, C, D, 5, 5, 0xd62f105d);
+ OP (FG, D, A, B, C, 10, 9, 0x02441453);
+ OP (FG, C, D, A, B, 15, 14, 0xd8a1e681);
+ OP (FG, B, C, D, A, 4, 20, 0xe7d3fbc8);
+ OP (FG, A, B, C, D, 9, 5, 0x21e1cde6);
+ OP (FG, D, A, B, C, 14, 9, 0xc33707d6);
+ OP (FG, C, D, A, B, 3, 14, 0xf4d50d87);
+ OP (FG, B, C, D, A, 8, 20, 0x455a14ed);
+ OP (FG, A, B, C, D, 13, 5, 0xa9e3e905);
+ OP (FG, D, A, B, C, 2, 9, 0xfcefa3f8);
+ OP (FG, C, D, A, B, 7, 14, 0x676f02d9);
+ OP (FG, B, C, D, A, 12, 20, 0x8d2a4c8a);
+
+ /* Round 3. */
+ OP (FH, A, B, C, D, 5, 4, 0xfffa3942);
+ OP (FH, D, A, B, C, 8, 11, 0x8771f681);
+ OP (FH, C, D, A, B, 11, 16, 0x6d9d6122);
+ OP (FH, B, C, D, A, 14, 23, 0xfde5380c);
+ OP (FH, A, B, C, D, 1, 4, 0xa4beea44);
+ OP (FH, D, A, B, C, 4, 11, 0x4bdecfa9);
+ OP (FH, C, D, A, B, 7, 16, 0xf6bb4b60);
+ OP (FH, B, C, D, A, 10, 23, 0xbebfbc70);
+ OP (FH, A, B, C, D, 13, 4, 0x289b7ec6);
+ OP (FH, D, A, B, C, 0, 11, 0xeaa127fa);
+ OP (FH, C, D, A, B, 3, 16, 0xd4ef3085);
+ OP (FH, B, C, D, A, 6, 23, 0x04881d05);
+ OP (FH, A, B, C, D, 9, 4, 0xd9d4d039);
+ OP (FH, D, A, B, C, 12, 11, 0xe6db99e5);
+ OP (FH, C, D, A, B, 15, 16, 0x1fa27cf8);
+ OP (FH, B, C, D, A, 2, 23, 0xc4ac5665);
+
+ /* Round 4. */
+ OP (FI, A, B, C, D, 0, 6, 0xf4292244);
+ OP (FI, D, A, B, C, 7, 10, 0x432aff97);
+ OP (FI, C, D, A, B, 14, 15, 0xab9423a7);
+ OP (FI, B, C, D, A, 5, 21, 0xfc93a039);
+ OP (FI, A, B, C, D, 12, 6, 0x655b59c3);
+ OP (FI, D, A, B, C, 3, 10, 0x8f0ccc92);
+ OP (FI, C, D, A, B, 10, 15, 0xffeff47d);
+ OP (FI, B, C, D, A, 1, 21, 0x85845dd1);
+ OP (FI, A, B, C, D, 8, 6, 0x6fa87e4f);
+ OP (FI, D, A, B, C, 15, 10, 0xfe2ce6e0);
+ OP (FI, C, D, A, B, 6, 15, 0xa3014314);
+ OP (FI, B, C, D, A, 13, 21, 0x4e0811a1);
+ OP (FI, A, B, C, D, 4, 6, 0xf7537e82);
+ OP (FI, D, A, B, C, 11, 10, 0xbd3af235);
+ OP (FI, C, D, A, B, 2, 15, 0x2ad7d2bb);
+ OP (FI, B, C, D, A, 9, 21, 0xeb86d391);
+
+ /* Put checksum in context given as argument. */
+ ctx->A += A;
+ ctx->B += B;
+ ctx->C += C;
+ ctx->D += D;
+}
+
+
+
+/* The routine updates the message-digest context to
+ * account for the presence of each of the characters inBuf[0..inLen-1]
+ * in the message whose digest is being computed.
+ */
+static void
+md5_update(MD5_CONTEXT *hd, const unsigned char *inbuf, size_t inlen)
+{
+ if (hd->count == 64) { /* flush the buffer */
+ transform( hd, hd->buf );
+ hd->count = 0;
+ hd->nblocks++;
+ }
+ if (!inbuf)
+ return;
+ if (hd->count) {
+ for (; inlen && hd->count < 64; inlen--)
+ hd->buf[hd->count++] = *inbuf++;
+ md5_update(hd, NULL, 0);
+ if (!inlen)
+ return;
+ }
+
+ while (inlen >= 64) {
+ transform(hd, inbuf);
+ hd->count = 0;
+ hd->nblocks++;
+ inlen -= 64;
+ inbuf += 64;
+ }
+
+ for (; inlen && hd->count < 64; inlen--)
+ hd->buf[hd->count++] = *inbuf++;
+}
+
+
+
+/* The routine final terminates the message-digest computation and
+ * ends with the desired message digest in mdContext->digest[0...15].
+ * The handle is prepared for a new MD5 cycle.
+ * Returns 16 bytes representing the digest.
+ */
+
+static void
+do_final(MD5_CONTEXT *hd)
+{
+ u32 t, msb, lsb;
+ unsigned char *p;
+
+ md5_update(hd, NULL, 0); /* flush */
+
+ msb = 0;
+ t = hd->nblocks;
+ if ((lsb = t << 6) < t) /* multiply by 64 to make a byte count */
+ msb++;
+ msb += t >> 26;
+ t = lsb;
+ if ((lsb = t + hd->count) < t) /* add the count */
+ msb++;
+ t = lsb;
+ if ((lsb = t << 3) < t) /* multiply by 8 to make a bit count */
+ msb++;
+ msb += t >> 29;
+
+ if (hd->count < 56) { /* enough room */
+ hd->buf[hd->count++] = 0x80; /* pad */
+ while(hd->count < 56)
+ hd->buf[hd->count++] = 0; /* pad */
+ } else { /* need one extra block */
+ hd->buf[hd->count++] = 0x80; /* pad character */
+ while (hd->count < 64)
+ hd->buf[hd->count++] = 0;
+ md5_update(hd, NULL, 0); /* flush */
+ memset(hd->buf, 0, 56); /* fill next block with zeroes */
+ }
+
+ /* append the 64 bit count */
+ hd->buf[56] = lsb ;
+ hd->buf[57] = lsb >> 8;
+ hd->buf[58] = lsb >> 16;
+ hd->buf[59] = lsb >> 24;
+ hd->buf[60] = msb ;
+ hd->buf[61] = msb >> 8;
+ hd->buf[62] = msb >> 16;
+ hd->buf[63] = msb >> 24;
+ transform(hd, hd->buf);
+
+ p = hd->buf;
+#ifdef BIG_ENDIAN_HOST
+#define X(a) do { *p++ = hd->a ; *p++ = hd->a >> 8; \
+ *p++ = hd->a >> 16; *p++ = hd->a >> 24; } while(0)
+#else /* little endian */
+ /*#define X(a) do { *(u32*)p = hd->##a ; p += 4; } while(0)*/
+ /* Unixware's cpp doesn't like the above construct so we do it his way:
+ * (reported by Allan Clark) */
+#define X(a) do { *(u32*)p = (*hd).a ; p += 4; } while(0)
+#endif
+ X(A);
+ X(B);
+ X(C);
+ X(D);
+#undef X
+ hd->finalized = 1;
+}
+
+static void
+md5_final(unsigned char *digest, MD5_CONTEXT *ctx)
+{
+ if (!ctx->finalized)
+ do_final(ctx);
+ memcpy(digest, ctx->buf, 16);
+}
+
+/*
+ * Creates a MD5 digest in hex fomrat (lowercase letters) from the
+ * string S. hextdigest but be buffer of at lease 33 bytes!
+ */
+static void
+md5_hex_digest(char *hexdigest, const unsigned char *s)
+{
+ int i;
+ MD5_CONTEXT context;
+ unsigned char digest[16];
+
+ md5_init(&context);
+ md5_update(&context, s, strlen((gchar *) s));
+ md5_final(digest, &context);
+
+ for (i = 0; i < 16; i++)
+ sprintf(hexdigest + 2 * i, "%02x", digest[i]);
+}
+
+
+/*
+** Function: md5_hmac
+** taken from the file rfc2104.txt
+** written by Martin Schaaf <mascha@ma-scha.de>
+*/
+static void
+md5_hmac(unsigned char *digest,
+ const unsigned char* text, int text_len,
+ const unsigned char* key, int key_len)
+{
+ MD5_CONTEXT context;
+ unsigned char k_ipad[64]; /* inner padding -
+ * key XORd with ipad
+ */
+ unsigned char k_opad[64]; /* outer padding -
+ * key XORd with opad
+ */
+ /* unsigned char tk[16]; */
+ int i;
+
+ /* start out by storing key in pads */
+ memset(k_ipad, 0, sizeof k_ipad);
+ memset(k_opad, 0, sizeof k_opad);
+ if (key_len > 64) {
+ /* if key is longer than 64 bytes reset it to key=MD5(key) */
+ MD5_CONTEXT tctx;
+
+ md5_init(&tctx);
+ md5_update(&tctx, key, key_len);
+ md5_final(k_ipad, &tctx);
+ md5_final(k_opad, &tctx);
+ } else {
+ memcpy(k_ipad, key, key_len);
+ memcpy(k_opad, key, key_len);
+ }
+
+ /*
+ * the HMAC_MD5 transform looks like:
+ *
+ * MD5(K XOR opad, MD5(K XOR ipad, text))
+ *
+ * where K is an n byte key
+ * ipad is the byte 0x36 repeated 64 times
+ * opad is the byte 0x5c repeated 64 times
+ * and text is the data being protected
+ */
+
+
+ /* XOR key with ipad and opad values */
+ for (i = 0; i < 64; i++) {
+ k_ipad[i] ^= 0x36;
+ k_opad[i] ^= 0x5c;
+ }
+
+ /*
+ * perform inner MD5
+ */
+ md5_init(&context); /* init context for 1st
+ * pass */
+ md5_update(&context, k_ipad, 64); /* start with inner pad */
+ md5_update(&context, text, text_len); /* then text of datagram */
+ md5_final(digest, &context); /* finish up 1st pass */
+ /*
+ * perform outer MD5
+ */
+ md5_init(&context); /* init context for 2nd
+ * pass */
+ md5_update(&context, k_opad, 64); /* start with outer pad */
+ md5_update(&context, digest, 16); /* then results of 1st
+ * hash */
+ md5_final(digest, &context); /* finish up 2nd pass */
+}
+
+
+static void
+md5_hex_hmac(char *hexdigest,
+ const unsigned char* text, int text_len,
+ const unsigned char* key, int key_len)
+{
+ unsigned char digest[16];
+ int i;
+
+ md5_hmac(digest, text, text_len, key, key_len);
+ for (i = 0; i < 16; i++)
+ sprintf(hexdigest + 2 * i, "%02x", digest[i]);
+}
+
+void caldav_md5_hex_digest(char *hexdigest, const unsigned char *s) {
+ md5_hex_digest(hexdigest, s);
+}
+
+void caldav_md5_hex_hmac(char *hexdigest,
+ const unsigned char* text, int text_len,
+ const unsigned char* key, int key_len) {
+ md5_hex_hmac(hexdigest, text, text_len, key, key_len);
+}
diff --git a/src/.svn/text-base/md5.h.svn-base b/src/.svn/text-base/md5.h.svn-base
new file mode 100644
index 0000000..7605214
--- /dev/null
+++ b/src/.svn/text-base/md5.h.svn-base
@@ -0,0 +1,52 @@
+/**
+ * md5.h - MD5 Message-Digest Algorithm
+ * Copyright (C) 1995, 1996, 1998, 1999 Free Software Foundation, Inc.
+ *
+ * according to the definition of MD5 in RFC 1321 from April 1992.
+ * NOTE: This is *not* the same file as the one from glibc
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 3, or (at your option) any
+ * later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _MD5_HDR_
+#define _MD5_HDR_
+
+#include <glib.h>
+
+/**
+ * @typedef u32
+ * Kept this typedef for compatibility reasons
+ */
+#ifndef HAVE_U32_TYPEDEF
+ #undef u32
+ typedef guint32 u32;
+ #define HAVE_U32_TYPEDEF
+#endif
+
+typedef struct { /* Hmm, should be private */
+ u32 A,B,C,D;
+ u32 nblocks;
+ unsigned char buf[64];
+ int count;
+ int finalized;
+} MD5_CONTEXT;
+
+void caldav_md5_hex_digest(char *hexdigest, const unsigned char *s);
+
+void caldav_md5_hex_hmac(char *hexdigest,
+ const unsigned char* text, int text_len,
+ const unsigned char* key, int key_len);
+
+#endif /* _MD5_HDR_ */
+
diff --git a/src/.svn/text-base/modify-caldav-object.c.svn-base b/src/.svn/text-base/modify-caldav-object.c.svn-base
new file mode 100644
index 0000000..f42f3ae
--- /dev/null
+++ b/src/.svn/text-base/modify-caldav-object.c.svn-base
@@ -0,0 +1,296 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "modify-caldav-object.h"
+#include "lock-caldav-object.h"
+#include <glib.h>
+#include <curl/curl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/**
+ * A static literal string containing the first part of the calendar query.
+ * The actual UID to use for the query is added at runtime.
+ */
+static char* search_head =
+"<?xml version=\"1.0\" encoding=\"utf-8\" ?>"
+"<C:calendar-query xmlns:D=\"DAV:\""
+" xmlns:C=\"urn:ietf:params:xml:ns:caldav\">"
+" <D:prop>"
+" <D:getetag/>"
+" <C:calendar-data/>"
+" </D:prop>"
+" <C:filter>"
+" <C:comp-filter name=\"VCALENDAR\">"
+" <C:comp-filter name=\"VEVENT\">"
+" <C:prop-filter name=\"UID\">";
+
+/**
+ * A static literal string containing the last part of the calendar query
+ */
+static char* search_tail =
+"</C:prop-filter>"
+" </C:comp-filter>"
+" </C:comp-filter>"
+" </C:filter>"
+"</C:calendar-query>";
+
+/**
+ * Function for modifying an event.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_modify(caldav_settings* settings, caldav_error* error) {
+ CURL* curl;
+ CURLcode res = 0;
+ char error_buf[CURL_ERROR_SIZE];
+ struct config_data data;
+ struct MemoryStruct chunk;
+ struct MemoryStruct headers;
+ struct curl_slist *http_header = NULL;
+ gchar* search;
+ gchar* uid;
+ gboolean result = FALSE;
+ gboolean LOCKSUPPORT = FALSE;
+ gchar* lock_token = NULL;
+
+ chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
+ chunk.size = 0; /* no data at this point */
+ headers.memory = NULL;
+ headers.size = 0;
+
+ curl = get_curl(settings);
+ if (!curl) {
+ error->code = -1;
+ error->str = g_strdup("Could not initialize libcurl");
+ g_free(settings->file);
+ settings->file = NULL;
+ return TRUE;
+ }
+
+ http_header = curl_slist_append(http_header,
+ "Content-Type: application/xml; charset=\"utf-8\"");
+ http_header = curl_slist_append(http_header, "Depth: 1");
+ http_header = curl_slist_append(http_header, "Expect:");
+ http_header = curl_slist_append(http_header, "Transfer-Encoding:");
+ data.trace_ascii = settings->trace_ascii;
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
+ /* we pass our 'chunk' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
+ /* we pass our 'headers' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
+ curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
+ if (settings->debug) {
+ curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
+ curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
+ }
+ gchar* file = g_strdup(settings->file);
+ if ((uid = get_response_header("uid", file, FALSE)) == NULL) {
+ g_free(file);
+ error->code = 1;
+ error->str = g_strdup("Error: Missing required UID for object");
+ return TRUE;
+ }
+ g_free(file);
+ /*
+ * collation is not supported by ICalendar.
+ * <C:text-match collation=\"i;ascii-casemap\">%s</C:text-match>
+ */
+ search = g_strdup_printf(
+ "%s\r\n<C:text-match>%s</C:text-match>\r\n%s",
+ search_head, uid, search_tail);
+ g_free(uid);
+ /* enable uploading */
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, search);
+ curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, strlen(search));
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "REPORT");
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ res = curl_easy_perform(curl);
+ curl_slist_free_all(http_header);
+ http_header = NULL;
+ g_free(search);
+ if (res != 0) {
+ error->code = -1;
+ error->str = g_strdup_printf("%s", error_buf);
+ g_free(settings->file);
+ settings->file = NULL;
+ result = TRUE;
+ }
+ else {
+ long code;
+ res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
+ if (code != 207) {
+ error->code = code;
+ error->str = g_strdup(chunk.memory);
+ result = TRUE;
+ }
+ else {
+ /* enable uploading */
+ gchar* url = NULL;
+ gchar* etag = NULL;
+ url = get_url(chunk.memory);
+ if (url) {
+ etag = get_etag(chunk.memory);
+ if (etag) {
+ gchar* host = get_host(settings->url);
+ if (host) {
+ file = g_strdup(url);
+ g_free(url);
+ url = g_strdup_printf("%s%s", host, file);
+ g_free(file);
+ g_free(host);
+ }
+ else {
+ g_free(etag);
+ g_free(url);
+ url = NULL;
+ }
+ }
+ else {
+ g_free(url);
+ url = NULL;
+ }
+ if (url) {
+ int lock = 0;
+ caldav_error lock_error;
+
+ file = g_strdup(etag);
+ g_free(etag);
+ etag = g_strdup_printf("If-Match: %s", file);
+ g_free(file);
+ http_header = curl_slist_append(http_header, etag);
+ g_free(etag);
+ http_header = curl_slist_append(http_header,
+ "Content-Type: text/calendar; charset=\"utf-8\"");
+ http_header = curl_slist_append(http_header, "Expect:");
+ http_header = curl_slist_append(
+ http_header, "Transfer-Encoding:");
+ if (settings->use_locking)
+ LOCKSUPPORT = caldav_lock_support(settings, &lock_error);
+ else
+ LOCKSUPPORT = FALSE;
+ if (LOCKSUPPORT) {
+ lock_token = caldav_lock_object(url, settings, &lock_error);
+ if (lock_token) {
+ http_header = curl_slist_append(
+ http_header, g_strdup_printf(
+ "If: (%s)", lock_token));
+ }
+ /*
+ * If error code is 423 (Resource is LOCKED) bail out
+ */
+ else if (lock_error.code == 423) {
+ lock = -1;
+ }
+ /*
+ * If error code is 501 (Not implemented) we continue
+ * hoping for the best.
+ */
+ else if (lock_error.code == 501) {
+ lock_token = g_strdup("");
+ }
+ else {
+ lock = -1;
+ }
+ }
+ if (! LOCKSUPPORT || (LOCKSUPPORT && lock_token && lock_error.code != 423)) {
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
+ curl_easy_setopt(curl, CURLOPT_URL, rebuild_url(settings, url));
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, settings->file);
+ curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE,
+ strlen(settings->file));
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "PUT");
+ res = curl_easy_perform(curl);
+ if (LOCKSUPPORT && lock_token) {
+ caldav_unlock_object(
+ lock_token, url, settings, &lock_error);
+ }
+ }
+ g_free(url);
+ g_free(lock_token);
+ if (res != 0 || lock < 0) {
+ /* Is this a lock_error don't change error*/
+ if (lock == 0 || lock_error.code == 423) {
+ error->code = code;
+ error->str = g_strdup(chunk.memory);
+ }
+ else {
+ error->code = lock_error.code;
+ error->str = g_strdup(lock_error.str);
+ }
+ result = TRUE;
+ g_free(settings->file);
+ settings->file = NULL;
+ }
+ else {
+ long code;
+ res = curl_easy_getinfo(
+ curl, CURLINFO_RESPONSE_CODE, &code);
+ if (code != 204) {
+ error->code = code;
+ error->str = g_strdup(chunk.memory);
+ result = TRUE;
+ }
+ }
+ curl_slist_free_all(http_header);
+ }
+ else {
+ error->code = code;
+ if (chunk.memory)
+ error->str = g_strdup(chunk.memory);
+ else
+ error->str = g_strdup("No object found");
+ result = TRUE;
+ }
+ }
+ else {
+ /*
+ * No object found on server. Posible synchronization
+ * problem or a server side race condition
+ */
+ error->code = 409;
+ error->str = g_strdup("No object found");
+ result = TRUE;
+ }
+ }
+ }
+ if (chunk.memory)
+ free(chunk.memory);
+ if (headers.memory)
+ free(headers.memory);
+ curl_easy_cleanup(curl);
+ return result;
+}
+
diff --git a/src/.svn/text-base/modify-caldav-object.h.svn-base b/src/.svn/text-base/modify-caldav-object.h.svn-base
new file mode 100644
index 0000000..39ac718
--- /dev/null
+++ b/src/.svn/text-base/modify-caldav-object.h.svn-base
@@ -0,0 +1,34 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __MODIFY_CALDAV_OBJECT_H__
+#define __MODIFY_CALDAV_OBJECT_H__
+
+#include "caldav-utils.h"
+#include "caldav.h"
+
+/**
+ * Function for modifying an event.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_modify(caldav_settings* settings, caldav_error* error);
+
+#endif
diff --git a/src/.svn/text-base/options-caldav-server.c.svn-base b/src/.svn/text-base/options-caldav-server.c.svn-base
new file mode 100644
index 0000000..1d97d04
--- /dev/null
+++ b/src/.svn/text-base/options-caldav-server.c.svn-base
@@ -0,0 +1,135 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "options-caldav-server.h"
+#include <glib.h>
+#include <curl/curl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/**
+ * Function for getting supported options from a server.
+ * @param curl A pointer to an initialized CURL instance
+ * @param settings struct containing the URL to the server. If authentication
+ * is required prior to making the call the credentials must be available
+ * via CURLOPT_USERPWD before calling.
+ * @param result A pointer to a struct _response. If test is true
+ * this variable can be NULL. Caller is responsible for freeing associated
+ * memory.
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @param test if this is true response will be whether the server
+ * represented by the URL is a CalDAV collection or not.
+ * @return FALSE in case of error, TRUE otherwise.
+ */
+gboolean caldav_getoptions(CURL* curl, caldav_settings* settings, response* result,
+ caldav_error* error, gboolean test) {
+ CURLcode res = 0;
+ char error_buf[CURL_ERROR_SIZE];
+ struct MemoryStruct chunk;
+ struct MemoryStruct headers;
+ gboolean enabled = FALSE;
+
+ if (! curl)
+ return FALSE;
+
+ if (!error) {
+ error = (caldav_error *) malloc(sizeof(struct _caldav_error));
+ memset(error, '\0', sizeof(struct _caldav_error));
+ }
+ chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
+ chunk.size = 0; /* no data at this point */
+ headers.memory = NULL;
+ headers.size = 0;
+
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
+ /* we pass our 'chunk' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
+ /* we pass our 'chunk' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
+ curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "OPTIONS");
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ res = curl_easy_perform(curl);
+ if (res == 0) {
+ gchar* head;
+ head = get_response_header("DAV", headers.memory, TRUE);
+ if (head && strstr(head, "calendar-access") != NULL) {
+ enabled = TRUE;
+ if (! test) {
+ result->msg = g_strdup(
+ get_response_header("Allow", headers.memory, FALSE));
+ }
+ }
+ else {
+ long code;
+ res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
+ if (code == 200) {
+ error->code = -1;
+ error->str = g_strdup("URL is not a CalDAV resource");
+ }
+ else {
+ error->code = -1 * code;
+ error->str = g_strdup(headers.memory);
+ }
+ }
+ g_free(head);
+ }
+ else if (
+ (res == CURLE_SSL_CONNECT_ERROR ||
+ CURLE_PEER_FAILED_VERIFICATION ||
+ CURLE_SSL_ENGINE_NOTFOUND ||
+ CURLE_SSL_ENGINE_SETFAILED ||
+ CURLE_SSL_CERTPROBLEM ||
+ CURLE_SSL_CIPHER ||
+ CURLE_SSL_CACERT ||
+ CURLE_SSL_CACERT_BADFILE ||
+ CURLE_SSL_CRL_BADFILE ||
+ CURLE_SSL_ISSUER_ERROR) && settings->usehttps) {
+ error->code = -2;
+ error->str = g_strdup(error_buf);
+ }
+ else if (res == CURLE_COULDNT_RESOLVE_HOST) {
+ error->code = -3;
+ error->str = g_strdup("Could not resolve host");
+ }
+ else if (res == CURLE_COULDNT_CONNECT) {
+ error->code = -4;
+ error->str = g_strdup("Unable to connect");
+ }
+ else {
+ error->code = -1;
+ error->str = g_strdup("URL is not a CalDAV resource");
+ }
+ if (chunk.memory)
+ free(chunk.memory);
+ if (headers.memory)
+ free(headers.memory);
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "GET");
+ return enabled;
+}
diff --git a/src/.svn/text-base/options-caldav-server.h.svn-base b/src/.svn/text-base/options-caldav-server.h.svn-base
new file mode 100644
index 0000000..d17cba2
--- /dev/null
+++ b/src/.svn/text-base/options-caldav-server.h.svn-base
@@ -0,0 +1,43 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __OPTIONS_CALDAV_SERVER_H__
+#define __OPTIONS_CALDAV_SERVER_H__
+
+#include "caldav-utils.h"
+#include "caldav.h"
+
+/**
+ * Function for getting supported options from a server.
+ * @param curl A pointer to an initialized CURL instance
+ * @param settings struct containing the URL to the server. If authentication
+ * is required prior to making the call the credentials must be available
+ * via CURLOPT_USERPWD before calling.
+ * @param result A pointer to a struct _response. If test is true
+ * this variable can be NULL. Caller is responsible for freeing associated
+ * memory.
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @param test if this is true response will be whether the server
+ * represented by the URL is a CalDAV collection or not.
+ * @return FALSE in case of error, TRUE otherwise.
+ */
+gboolean caldav_getoptions(CURL* curl, caldav_settings* settings, response* result,
+ caldav_error* error, gboolean test);
+
+#endif
diff --git a/src/Makefile.am b/src/Makefile.am
new file mode 100644
index 0000000..59d3126
--- /dev/null
+++ b/src/Makefile.am
@@ -0,0 +1,53 @@
+AUTOMAKE_OPTIONS = gnu
+
+INCLUDES = @CURL_CFLAGS@ @GLIB_CFLAGS@ \
+ -I$(top_srcdir) -I$(top_builddir)
+
+if STATIC_LINK
+noinst_LTLIBRARIES = libcaldav.la
+endif
+
+if DYNAMIC_LINK
+lib_LTLIBRARIES = libcaldav.la
+endif
+
+libcaldav_la_LDFLAGS = -version-info @LIBVERSION@
+
+libcaldav_la_SOURCES = \
+ caldav.h \
+ caldav.c \
+ add-caldav-object.c \
+ add-caldav-object.h \
+ delete-caldav-object.c \
+ delete-caldav-object.h \
+ modify-caldav-object.c \
+ modify-caldav-object.h \
+ get-caldav-report.c \
+ get-caldav-report.h \
+ get-display-name.c \
+ get-display-name.h \
+ caldav-utils.c \
+ caldav-utils.h \
+ md5.c \
+ md5.h \
+ options-caldav-server.c \
+ options-caldav-server.h \
+ lock-caldav-object.c \
+ lock-caldav-object.h \
+ get-freebusy-report.c \
+ get-freebusy-report.h
+
+libcaldav_includedir=$(includedir)/libcaldav-@VERSION@
+libcaldav_include_HEADERS = caldav.h
+
+noinst_HEADERS = \
+ add-caldav-object.h \
+ delete-caldav-object.h \
+ modify-caldav-object.h \
+ get-caldav-report.h \
+ caldav-utils.h
+
+libcaldav_la_LIBADD = \
+ @CURL_LIBS@ \
+ @GLIB_LIBS@
+
diff --git a/src/Makefile.in b/src/Makefile.in
new file mode 100644
index 0000000..5803fc2
--- /dev/null
+++ b/src/Makefile.in
@@ -0,0 +1,649 @@
+# Makefile.in generated by automake 1.11.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation,
+# Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+
+VPATH = @srcdir@
+pkgdatadir = $(datadir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkglibexecdir = $(libexecdir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+target_triplet = @target@
+subdir = src
+DIST_COMMON = $(libcaldav_include_HEADERS) $(noinst_HEADERS) \
+ $(srcdir)/Makefile.am $(srcdir)/Makefile.in
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/m4/ax_prog_doxygen.m4 \
+ $(top_srcdir)/m4/libtool.m4 $(top_srcdir)/m4/ltoptions.m4 \
+ $(top_srcdir)/m4/ltsugar.m4 $(top_srcdir)/m4/ltversion.m4 \
+ $(top_srcdir)/m4/lt~obsolete.m4 $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+ $(ACLOCAL_M4)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+ $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
+ *) f=$$p;; \
+ esac;
+am__strip_dir = f=`echo $$p | sed -e 's|^.*/||'`;
+am__install_max = 40
+am__nobase_strip_setup = \
+ srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*|]/\\\\&/g'`
+am__nobase_strip = \
+ for p in $$list; do echo "$$p"; done | sed -e "s|$$srcdirstrip/||"
+am__nobase_list = $(am__nobase_strip_setup); \
+ for p in $$list; do echo "$$p $$p"; done | \
+ sed "s| $$srcdirstrip/| |;"' / .*\//!s/ .*/ ./; s,\( .*\)/[^/]*$$,\1,' | \
+ $(AWK) 'BEGIN { files["."] = "" } { files[$$2] = files[$$2] " " $$1; \
+ if (++n[$$2] == $(am__install_max)) \
+ { print $$2, files[$$2]; n[$$2] = 0; files[$$2] = "" } } \
+ END { for (dir in files) print dir, files[dir] }'
+am__base_list = \
+ sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
+ sed '$$!N;$$!N;$$!N;$$!N;s/\n/ /g'
+am__installdirs = "$(DESTDIR)$(libdir)" \
+ "$(DESTDIR)$(libcaldav_includedir)"
+LTLIBRARIES = $(lib_LTLIBRARIES) $(noinst_LTLIBRARIES)
+libcaldav_la_DEPENDENCIES =
+am_libcaldav_la_OBJECTS = caldav.lo add-caldav-object.lo \
+ delete-caldav-object.lo modify-caldav-object.lo \
+ get-caldav-report.lo get-display-name.lo caldav-utils.lo \
+ md5.lo options-caldav-server.lo lock-caldav-object.lo \
+ get-freebusy-report.lo
+libcaldav_la_OBJECTS = $(am_libcaldav_la_OBJECTS)
+libcaldav_la_LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) \
+ $(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
+ $(libcaldav_la_LDFLAGS) $(LDFLAGS) -o $@
+@DYNAMIC_LINK_TRUE@am_libcaldav_la_rpath = -rpath $(libdir)
+@STATIC_LINK_TRUE@am_libcaldav_la_rpath =
+DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
+depcomp = $(SHELL) $(top_srcdir)/depcomp
+am__depfiles_maybe = depfiles
+am__mv = mv -f
+COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
+ $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+LTCOMPILE = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
+ --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
+ $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+CCLD = $(CC)
+LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
+ --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) \
+ $(LDFLAGS) -o $@
+SOURCES = $(libcaldav_la_SOURCES)
+DIST_SOURCES = $(libcaldav_la_SOURCES)
+HEADERS = $(libcaldav_include_HEADERS) $(noinst_HEADERS)
+ETAGS = etags
+CTAGS = ctags
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+ACLOCAL = @ACLOCAL@
+AMTAR = @AMTAR@
+AR = @AR@
+AUTOCONF = @AUTOCONF@
+AUTOHEADER = @AUTOHEADER@
+AUTOMAKE = @AUTOMAKE@
+AWK = @AWK@
+CC = @CC@
+CCDEPMODE = @CCDEPMODE@
+CFLAGS = @CFLAGS@
+CPP = @CPP@
+CPPFLAGS = @CPPFLAGS@
+CURL_CFLAGS = @CURL_CFLAGS@
+CURL_LIBS = @CURL_LIBS@
+CYGPATH_W = @CYGPATH_W@
+DEFS = @DEFS@
+DEPDIR = @DEPDIR@
+DOXYGEN_PAPER_SIZE = @DOXYGEN_PAPER_SIZE@
+DSYMUTIL = @DSYMUTIL@
+DUMPBIN = @DUMPBIN@
+DX_CONFIG = @DX_CONFIG@
+DX_DOCDIR = @DX_DOCDIR@
+DX_DOT = @DX_DOT@
+DX_DOXYGEN = @DX_DOXYGEN@
+DX_DVIPS = @DX_DVIPS@
+DX_EGREP = @DX_EGREP@
+DX_ENV = @DX_ENV@
+DX_FLAG_chi = @DX_FLAG_chi@
+DX_FLAG_chm = @DX_FLAG_chm@
+DX_FLAG_doc = @DX_FLAG_doc@
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+ cd "$(DESTDIR)$(libcaldav_includedir)" && rm -f $$files
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+.NOEXPORT:
diff --git a/src/add-caldav-object.c b/src/add-caldav-object.c
new file mode 100644
index 0000000..68a4377
--- /dev/null
+++ b/src/add-caldav-object.c
@@ -0,0 +1,132 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "add-caldav-object.h"
+#include <glib.h>
+#include <curl/curl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/**
+ * Function for adding a new event.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_add(caldav_settings* settings, caldav_error* error) {
+ CURL* curl;
+ CURLcode res = 0;
+ char error_buf[CURL_ERROR_SIZE];
+ struct config_data data;
+ struct MemoryStruct chunk;
+ struct MemoryStruct headers;
+ struct curl_slist *http_header = NULL;
+ gboolean result = FALSE;
+ gchar* url;
+
+ chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
+ chunk.size = 0; /* no data at this point */
+ headers.memory = NULL;
+ headers.size = 0;
+
+ curl = get_curl(settings);
+ if (!curl) {
+ error->code = -1;
+ error->str = g_strdup("Could not initialize libcurl");
+ g_free(settings->file);
+ settings->file = NULL;
+ return TRUE;
+ }
+
+ http_header = curl_slist_append(http_header,
+ "Content-Type: text/calendar; charset=\"utf-8\"");
+ http_header = curl_slist_append(http_header, "If-None-Match: *");
+ http_header = curl_slist_append(http_header, "Expect:");
+ http_header = curl_slist_append(http_header, "Transfer-Encoding:");
+ http_header = curl_slist_append(http_header, "Connection: close");
+ data.trace_ascii = settings->trace_ascii;
+
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
+ /* we pass our 'chunk' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
+ /* we pass our 'headers' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
+ curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
+ if (settings->debug) {
+ curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
+ curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
+ }
+ gchar* tmp = random_file_name(settings->file);
+ gchar* s = rebuild_url(settings, NULL);
+ if (g_str_has_suffix(s, "/")) {
+ url = g_strdup_printf("%slibcaldav-%s.ics", s, tmp);
+ }
+ else {
+ url = g_strdup_printf("%s/libcaldav-%s.ics", s, tmp);
+ }
+ g_free(s);
+ g_free(tmp);
+ curl_easy_setopt(curl, CURLOPT_URL, url);
+ tmp = g_strdup(settings->file);
+ g_free(settings->file);
+ settings->file = verify_uid(tmp);
+ g_free(tmp);
+ /* enable uploading */
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, settings->file);
+ curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, strlen(settings->file));
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "PUT");
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ res = curl_easy_perform(curl);
+ if (res != 0) {
+ error->code = -1;
+ error->str = g_strdup_printf("%s", error_buf);
+ g_free(settings->file);
+ settings->file = NULL;
+ result = TRUE;
+ }
+ else {
+ long code;
+ res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
+ if (code != 201) {
+ error->str = g_strdup(chunk.memory);
+ error->code = code;
+ result = TRUE;
+ }
+ }
+ if (chunk.memory)
+ free(chunk.memory);
+ if (headers.memory)
+ free(headers.memory);
+ curl_slist_free_all(http_header);
+ curl_easy_cleanup(curl);
+ return result;
+}
+
diff --git a/src/add-caldav-object.h b/src/add-caldav-object.h
new file mode 100644
index 0000000..0756e74
--- /dev/null
+++ b/src/add-caldav-object.h
@@ -0,0 +1,35 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __ADD_CALDAV_OBJECT_H__
+#define __ADD_CALDAV_OBJECT_H__
+
+#include "caldav-utils.h"
+#include "caldav.h"
+
+/**
+ * Function for adding a new event.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_add(caldav_settings* settings, caldav_error* error);
+
+#endif
+
diff --git a/src/caldav-utils.c b/src/caldav-utils.c
new file mode 100644
index 0000000..aa3f02e
--- /dev/null
+++ b/src/caldav-utils.c
@@ -0,0 +1,729 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "caldav-utils.h"
+#include "md5.h"
+#include <glib.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+#include <curl/curl.h>
+#include <ctype.h>
+
+/**
+ * This function is burrowed from the libcurl documentation
+ * @param text
+ * @param stream
+ * @param ptr
+ * @param size
+ * @param nohex
+ */
+void dump(const char* text, FILE* stream, char* ptr, size_t size, char nohex) {
+ size_t i;
+ size_t c;
+
+ unsigned int width=0x10;
+
+ if(nohex)
+ /* without the hex output, we can fit more on screen */
+ width = 0x40;
+ fprintf(stream, "%s, %zd bytes (0x%zx)\n", text, size, size);
+ for(i=0; i<size; i+= width) {
+ fprintf(stream, "%04zx: ", i);
+ if(!nohex) {
+ /* hex not disabled, show it */
+ for(c = 0; c < width; c++) {
+ if(i+c < size)
+ fprintf(stream, "%02x ", ptr[i+c]);
+ else
+ fputs(" ", stream);
+ }
+ }
+ for(c = 0; (c < width) && (i+c < size); c++) {
+ /* check for 0D0A; if found, skip past and start a new line of output */
+ if (nohex && (i+c+1 < size) && ptr[i+c]==0x0D && ptr[i+c+1]==0x0A) {
+ i+=(c+2-width);
+ break;
+ }
+ fprintf(stream, "%c",(ptr[i+c]>=0x20) && (ptr[i+c]<0x80)?ptr[i+c]:'.');
+ /* check again for 0D0A, to avoid an extra \n if it's at width */
+ if (nohex && (i+c+2 < size) && ptr[i+c+1]==0x0D && ptr[i+c+2]==0x0A) {
+ i+=(c+3-width);
+ break;
+ }
+ }
+ fputc('\n', stream); /* newline */
+ }
+ fflush(stream);
+}
+
+/**
+ * This function is burrowed from the libcurl documentation
+ * @param handle
+ * @param type
+ * @param data
+ * @param size
+ * @param userp
+ * @return
+ */
+int my_trace(CURL* handle, curl_infotype type, char* data, size_t size, void* userp) {
+ struct config_data* config = (struct config_data *)userp;
+ const char* text;
+ (void)handle; /* prevent compiler warning */
+
+ switch (type) {
+ case CURLINFO_TEXT:
+ fprintf(stderr, "== Info: %s", data);
+ default: /* in case a new one is introduced to shock us */
+ return 0;
+ case CURLINFO_HEADER_OUT:
+ text = "=> Send header";
+ break;
+ case CURLINFO_DATA_OUT:
+ text = "=> Send data";
+ break;
+ case CURLINFO_SSL_DATA_OUT:
+ text = "=> Send SSL data";
+ break;
+ case CURLINFO_HEADER_IN:
+ text = "<= Recv header";
+ break;
+ case CURLINFO_DATA_IN:
+ text = "<= Recv data";
+ break;
+ case CURLINFO_SSL_DATA_IN:
+ text = "<= Recv SSL data";
+ break;
+ }
+ dump(text, stderr, data, size, config->trace_ascii);
+ return 0;
+}
+
+/**
+ * This function is burrowed from the libcurl documentation
+ * @param ptr
+ * @param size
+ * @return void* to memory region
+ */
+static void* myrealloc(void* ptr, size_t size) {
+/* There might be a realloc() out there that doesn't like reallocing
+ * NULL pointers, so we take care of it here
+ * */
+ if(ptr)
+ return realloc(ptr, size);
+ else
+ return malloc(size);
+}
+
+/**
+ * This function is burrowed from the libcurl documentation
+ * @param ptr
+ * @param size
+ * @param nmemb
+ * @param data
+ * @return number of written bytes
+ */
+size_t WriteMemoryCallback(void* ptr, size_t size, size_t nmemb, void* data) {
+ size_t realsize = size * nmemb;
+ struct MemoryStruct* mem = (struct MemoryStruct *)data;
+ mem->memory = (char *)myrealloc(mem->memory, mem->size + realsize + 1);
+
+ if (mem->memory) {
+ memcpy(&(mem->memory[mem->size]), ptr, realsize);
+ mem->size += realsize;
+ mem->memory[mem->size] = 0;
+ }
+ return realsize;
+}
+
+/**
+ * This function is burrowed from the libcurl documentation
+ * @param ptr
+ * @param size
+ * @param nmemb
+ * @param data
+ * @return number of written bytes
+ */
+size_t WriteHeaderCallback(void* ptr, size_t size, size_t nmemb, void* data) {
+ size_t realsize = size * nmemb;
+ struct MemoryStruct* mem = (struct MemoryStruct *)data;
+ mem->memory = (char *)myrealloc(mem->memory, mem->size + realsize + 1);
+
+ if (mem->memory) {
+ memcpy(&(mem->memory[mem->size]), ptr, realsize);
+ mem->size += realsize;
+ mem->memory[mem->size] = 0;
+ }
+ return realsize;
+}
+
+/*
+size_t ReadMemoryCallback(void* ptr, size_t size, size_t nmemb, void* data){
+ struct MemoryStruct* mem = (struct MemoryStruct *)data;
+
+ memcpy(ptr, mem->memory, mem->size);
+ return mem->size;
+}
+*/
+
+/**
+ * Initialize caldav settings structure.
+ * @param settings @see caldav_settings
+ */
+void init_caldav_settings(caldav_settings* settings) {
+ settings->username = NULL;
+ settings->password = NULL;
+ settings->url = NULL;
+ settings->file = NULL;
+ settings->usehttps = FALSE;
+ settings->custom_cacert = NULL;
+ settings->verify_ssl_certificate = TRUE;
+ settings->debug = FALSE;
+ settings->trace_ascii = TRUE;
+ settings->ACTION = UNKNOWN;
+ settings->start = 0;
+ settings->end = 0;
+}
+
+/**
+ * Free memory assigned to caldav settings structure.
+ * @param settings @see caldav_settings
+ */
+void free_caldav_settings(caldav_settings* settings) {
+ if (settings->username) {
+ g_free(settings->username);
+ settings->username = NULL;
+ }
+ if (settings->password) {
+ g_free(settings->password);
+ settings->password = NULL;
+ }
+ if (settings->url) {
+ g_free(settings->url);
+ settings->url = NULL;
+ }
+ if (settings->file) {
+ g_free(settings->file);
+ settings->file = NULL;
+ }
+ if (settings->custom_cacert) {
+ g_free(settings->custom_cacert);
+ settings->custom_cacert = NULL;
+ }
+ settings->verify_ssl_certificate = TRUE;
+ settings->usehttps = FALSE;
+ settings->debug = FALSE;
+ settings->trace_ascii = TRUE;
+ settings->ACTION = UNKNOWN;
+ settings->start = 0;
+ settings->end = 0;
+}
+
+static gchar* place_after_hostname(const gchar* start, const gchar* stop) {
+ gchar* newpos = NULL;
+ gchar* pos = (gchar *) stop;
+ gboolean digit = TRUE;
+
+ if (pos && stop && strcmp(start, pos) != 0) {
+ while (*pos != ':' && strcmp(start, pos) != 0)
+ --pos;
+ if (pos > start) {
+ gchar* tmp = (gchar *) pos + 1;
+ /* is pos++ a port number */
+ while (*tmp != '/' && digit) {
+ if (isdigit(*tmp) != 0) {
+ digit = TRUE;
+ tmp++;
+ }
+ else
+ digit = FALSE;
+ }
+ if (digit) {
+ /* pos was a port number */
+ while (*pos != '@' && strcmp(start, pos) != 0)
+ --pos;
+ if (strcmp(start, pos) != 0)
+ newpos = pos;
+ }
+ else {
+ while (*pos != '@' && pos != stop)
+ pos++;
+ if (pos != stop)
+ newpos = pos;
+ }
+ }
+ else {
+ /* is a username present */
+ gchar* tmp = NULL;
+ while (*pos != '/' && pos != stop) {
+ if (*pos == '@')
+ tmp = pos;
+ pos++;
+ }
+ if (tmp && pos != stop)
+ newpos = tmp;
+ }
+ }
+ return newpos;
+}
+
+/**
+ * Parse URL
+ * @param settings @see caldav_settings
+ * @param url String containing URL to collection
+ */
+void parse_url(caldav_settings* settings, const char* url) {
+ char* start;
+ char* pos;
+ char* end;
+ char* login;
+
+ login = pos = end = start = NULL;
+ if (!url)
+ return;
+ if ((pos = strstr(url, "//")) != NULL) {
+ /* Does the URL use https ?*/
+ if (!g_ascii_strncasecmp(url,"https",5) && settings->usehttps == FALSE) {
+ settings->usehttps=TRUE;
+ }
+ start = g_strdup(&(*(pos + 2)));
+ if ((pos = place_after_hostname(start, strrchr(start, '\0') - 1)) != NULL) {
+ /* username and/or password present */
+ login = g_strndup(start, pos - start);
+ end = pos;
+ if ((pos = strrchr(login, ':')) != NULL) {
+ /* both username and password is present */
+ settings->username = g_strndup(login, pos - login);
+ settings->password = g_strdup(++pos);
+ }
+ else {
+ /* only username present */
+ settings->username = g_strdup(login);
+ settings->password = NULL;
+ }
+ g_free(login);
+ settings->url = g_strdup(++end);
+ }
+ else {
+ /* no username or password present */
+ settings->url = g_strdup(start);
+ settings->username = NULL;
+ settings->password = NULL;
+ }
+ g_free(start);
+ }
+}
+
+/**
+ * Find a specific HTTP header from last request
+ * @param header HTTP header to search for
+ * @param headers String of HTTP headers from last request
+ * @param lowcase Should string be returned in all lower case.
+ * @return The header found or NULL
+ */
+#define MAX_TOKENS 2
+gchar* get_response_header(
+ const char* header, gchar* headers, gboolean lowcase) {
+ gchar* line;
+ gchar* head = NULL;
+ gchar* oldhead = NULL;
+ gchar** buf;
+ gchar* header_list;
+ gchar* saveptr;
+
+ header_list = g_strdup(headers);
+ line = strtok_r(header_list, "\r\n", &saveptr);
+ if (line != NULL) {
+ do {
+ buf = g_strsplit(line, ":", MAX_TOKENS);
+ if (buf[1] != NULL) {
+ if (g_ascii_strcasecmp(buf[0], header) == 0) {
+ if (head) {
+ if (strcmp(head, buf[1]) != 0) {
+ oldhead = head;
+ head = g_strconcat(head, ", ", buf[1], NULL);
+ g_free(oldhead);
+ }
+ }
+ else
+ head = g_strdup(buf[1]);
+ if (head)
+ g_strstrip(head);
+ }
+ }
+ g_strfreev(buf);
+ } while ((line = strtok_r(NULL, "\r\n", &saveptr)) != NULL);
+ }
+ g_free(header_list);
+ if (head)
+ return (lowcase) ? g_ascii_strdown(head, -1) : head;
+ else
+ return NULL;
+}
+
+static const char* VCAL_HEAD =
+"BEGIN:VCALENDAR\r\n"
+"PRODID:-//CalDAV Calendar//NONSGML libcaldav//EN\r\n"
+"VERSION:2.0\r\n";
+static const char* VCAL_FOOT = "END:VCALENDAR";
+
+/**
+ * Parse response from CalDAV server. Internal function.
+ * @param report Response from server
+ * @param element XML element to find
+ * @param type VCalendar element to find
+ * @param wrap Is this the final parsing or just a part
+ * @param recursive Stop after first match or not
+ * @return the parsed result
+ */
+static gchar* parse_caldav_report_wrap(
+ char* report, const char* element, const char* type,
+ gboolean wrap, gboolean recursive) {
+ char* pos;
+ char* start;
+ char* object;
+ char* tmp_report;
+ char* tmp;
+ gchar* response;
+ gchar* begin_type;
+ gchar* end_type;
+ gboolean keep_going = TRUE;
+
+ begin_type = g_strdup_printf("BEGIN:%s", type);
+ end_type = g_strdup_printf("END:%s", type);
+ pos = start = object = response = NULL;
+ tmp_report = g_strdup(report);
+ while ((pos = strstr(tmp_report, element)) != NULL && keep_going) {
+ pos = strchr(pos, '>');
+ if (!pos) {
+ break;
+ }
+ pos = &(*(pos + 1));
+ pos = strstr(pos, begin_type);
+ if (!pos) {
+ break;
+ }
+ object = &(*(pos + strlen(begin_type)));
+ object = g_strchug(object);
+ start = g_strdup(object);
+ if ((pos = strstr(start, end_type)) == NULL) {
+ g_free(start);
+ break;
+ }
+ char end_not_found = 1;
+ while (end_not_found == 1) {
+ if (strstr(pos+1, end_type) < strstr(pos+1, element)) {
+ if (strstr(pos+1, end_type) != NULL) {
+ pos = strstr(pos+1, end_type);
+ }
+ else {
+ end_not_found = 0;
+ }
+ }
+ else {
+ end_not_found = 0;
+ }
+ }
+ object = g_strndup(start, strlen(start) - strlen(pos));
+ if (response) {
+ tmp = g_strdup(response);
+ g_free(response);
+ response = g_strdup_printf("%s%s\r\n%s%s\r\n",
+ tmp, begin_type, object, end_type);
+ g_free(tmp);
+ }
+ else {
+ if (wrap)
+ response = g_strdup_printf("%s%s\r\n%s%s\r\n",
+ VCAL_HEAD, begin_type, object, end_type);
+ else
+ response = g_strdup_printf("%s\r\n%s%s\r\n",
+ begin_type, object, end_type);
+ }
+ if (recursive) {
+ pos = strchr(pos, '>');
+ g_free(tmp_report);
+ tmp_report = g_strdup(&(*(pos + 1)));
+ }
+ else {
+ keep_going = FALSE;
+ }
+ g_free(start);
+ g_free(object);
+ }
+ g_free(tmp_report);
+ g_free(begin_type);
+ g_free(end_type);
+ if (wrap)
+ if (response) {
+ object = g_strdup(response);
+ g_free(response);
+ response = g_strdup_printf("%s%s", object, VCAL_FOOT);
+ g_free(object);
+ }
+ return response;
+}
+
+/**
+ * Parse response from CalDAV server
+ * @param report Response from server
+ * @param element XML element to find
+ * @param type VCalendar element to find
+ * @return the parsed result
+ */
+gchar* parse_caldav_report(char* report, const char* element, const char* type) {
+ gchar* response = NULL;
+ gchar* timezone = NULL;
+ gchar* temp = NULL;
+
+ if (!report || !element || !type)
+ return NULL;
+ /* test for VTIMEZONE.
+ * Only the first found will be used and this will then
+ * be the time zone for the entire report
+ */
+ timezone = parse_caldav_report_wrap(
+ report, element, "VTIMEZONE", FALSE, FALSE);
+ if (timezone) {
+ response = g_strdup_printf("%s%s", VCAL_HEAD, timezone);
+ g_free(timezone);
+ temp = parse_caldav_report_wrap(report, element, type, FALSE, TRUE);
+ if (temp) {
+ gchar* tmp = g_strdup(response);
+ g_free(response);
+ response = g_strdup_printf("%s%s%s", tmp, temp, VCAL_FOOT);
+ g_free(tmp);
+ g_free(temp);
+ }
+ else {
+ g_free(response);
+ return NULL;
+ }
+ }
+ else
+ response = parse_caldav_report_wrap(report, element, type, TRUE, TRUE);
+ return response;
+}
+
+/**
+ * Convert a time_t variable to CalDAV DateTime
+ * @param time a specific date and time
+ * @return the CalDAV DateTime
+ */
+gchar* get_caldav_datetime(time_t* time) {
+ struct tm *current;
+ gchar* datetime;
+
+ current = localtime(time);
+ datetime = g_strdup_printf("%d%.2d%.2dT%.2d%.2d%.2dZ",
+ current->tm_year + 1900, current->tm_mon + 1, current->tm_mday,
+ current->tm_hour, current->tm_min, current->tm_sec);
+ return datetime;
+}
+
+/**
+ * Create a random text string, using MD5. @see caldav_md5_hex_digest()
+ * @param text some text to randomize
+ * @return MD5 hash of text
+ */
+gchar* random_file_name(gchar* text) {
+ unsigned char* name;
+ gchar md5sum[33];
+
+ name = (unsigned char *) g_strdup(text);
+ caldav_md5_hex_digest(md5sum, name);
+ g_free(name);
+ return g_strdup(md5sum);
+}
+
+/**
+ * Does the event contain a UID element or not. If not add it.
+ * @param object A specific event
+ * @return event, eventually added UID
+ */
+gchar* verify_uid(gchar* object) {
+ gchar* uid;
+ gchar* newobj;
+ gchar* pos;
+
+ newobj = g_strdup(object);
+ uid = get_response_header("uid", object, TRUE);
+ if (!uid) {
+ object = g_strdup(newobj);
+ g_free(newobj);
+ pos = strstr(object, "END:VEVENT");
+ newobj = g_strndup(object, strlen(object) - strlen(pos));
+ newobj = g_strchomp(newobj);
+ uid = random_file_name(object);
+ gchar*tmp = g_strdup(newobj);
+ g_free(newobj);
+ newobj = g_strdup_printf("%s\r\nUID:libcaldav-%s@tempuri.org\r\n%s",
+ tmp, uid, pos);
+ g_free(uid);
+ g_free(tmp);
+ g_free(object);
+ }
+ else
+ g_free(uid);
+ /*uid = g_strdup(newobj);
+ g_free(newobj);*/
+ g_strchomp(newobj);
+ /*g_free(uid);*/
+ return newobj;
+}
+
+/**
+ * Fetch a URL from a XML element
+ * @param text String
+ * @return URL
+ */
+#define ELEM_HREF "href>"
+gchar* get_url(gchar* text) {
+ gchar* pos;
+ gchar* url = NULL;
+
+ if ((pos = strstr(text, ELEM_HREF)) == NULL)
+ return url;
+ pos = &(*(pos + strlen(ELEM_HREF)));
+ url = g_strndup(pos, strlen(pos) - strlen(strchr(pos, '<')));
+ return url;
+}
+
+/**
+ * Fetch any element from XML
+ * @param text String
+ * @param tag The element to look for
+ * @return element
+ */
+gchar* get_tag(const gchar* tag, gchar* text) {
+ gchar *pos;
+ gchar* res = NULL;
+ gchar* the_tag = NULL;
+
+ /*printf("%s\n", text);*/
+ the_tag = g_strdup_printf("<%s>", tag);
+ if ((pos = strstr(text, the_tag)) == NULL) {
+ g_free(the_tag);
+ return res;
+ }
+ pos = &(*(pos + strlen(the_tag)));
+ res = g_strndup(pos, strlen(pos) - strlen(strchr(pos, '<')));
+ g_free(the_tag);
+ return res;
+}
+
+/**
+ * Fetch the etag element from XML
+ * @param text String
+ * @return etag
+ */
+#define ELEM_ETAG "getetag"
+gchar* get_etag(gchar* text) {
+ gchar* etag = NULL;
+
+ etag = get_tag(ELEM_ETAG, text);
+ /* Maybe namespace prefixed */
+ if (!etag) {
+ etag = get_tag("D:getetag", text);
+ }
+ return etag;
+}
+
+/**
+ * Fetch host from URL
+ * @param url URL
+ * @return host
+ */
+gchar* get_host(gchar* url) {
+ gchar** buf;
+ gchar* result = NULL;
+
+ buf = g_strsplit(url, "/", 2);
+ if (buf[0]) {
+ result = g_strdup(buf[0]);
+ }
+ g_strfreev(buf);
+ return result;
+}
+
+/**
+ * rebuild a raw URL with https if needed from the settings
+ * @param settings caldav_settings
+ * @param uri URI to use instead of base
+ * @return URL
+ */
+
+gchar* rebuild_url(caldav_settings* settings, gchar* uri){
+ gchar* url = NULL;
+ gchar* mystr = NULL;
+ if (settings->usehttps) {
+ mystr = "https://";
+ } else {
+ mystr = "http://";
+ }
+ if (uri)
+ url = g_strdup_printf("%s%s", mystr, uri);
+ else
+ url = g_strdup_printf("%s%s", mystr,settings->url);
+
+ return url;
+}
+
+/**
+ * Prepare a curl connection
+ * @param settings caldav_settings
+ * @return CURL
+ */
+CURL* get_curl(caldav_settings* setting) {
+ CURL* curl;
+ gchar* userpwd = NULL;
+ gchar* url = NULL;
+
+ curl = curl_easy_init();
+ if (curl) {
+ if (setting->username) {
+ if (setting->password)
+ userpwd = g_strdup_printf("%s:%s",
+ setting->username, setting->password);
+ else
+ userpwd = g_strdup_printf("%s", setting->username);
+ curl_easy_setopt(curl, CURLOPT_USERPWD, userpwd);
+ g_free(userpwd);
+ }
+ if (setting->verify_ssl_certificate)
+ curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 2);
+ else {
+ curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0);
+ curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
+ }
+ if (setting->custom_cacert)
+ curl_easy_setopt(curl, CURLOPT_CAINFO, setting->custom_cacert);
+ curl_easy_setopt(curl, CURLOPT_USERAGENT, __CALDAV_USERAGENT);
+ url = rebuild_url(setting, NULL);
+ curl_easy_setopt(curl, CURLOPT_URL, url);
+ g_free(url);
+ }
+ return (curl) ? curl : NULL;
+}
diff --git a/src/caldav-utils.h b/src/caldav-utils.h
new file mode 100644
index 0000000..02c84d7
--- /dev/null
+++ b/src/caldav-utils.h
@@ -0,0 +1,221 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __CALDAV_UTILS_H__
+#define __CALDAV_UTILS_H__
+
+#include <glib.h>
+#include <stdlib.h>
+#include <curl/curl.h>
+#include "caldav.h"
+
+/**
+ * @typedef struct _CALDAV_SETTINGS caldav_settings
+ * A pointer to a struct _CALDAV_SETTINGS
+ */
+typedef struct _CALDAV_SETTINGS caldav_settings;
+
+/**
+ * @struct _CALDAV_SETTINGS
+ * A struct used to exchange all user input between various parts
+ * of the library
+ */
+struct _CALDAV_SETTINGS {
+ gchar* username;
+ gchar* password;
+ gchar* url;
+ gchar* file;
+ gboolean usehttps;
+ gboolean verify_ssl_certificate;
+ gchar* custom_cacert;
+ gboolean debug;
+ gboolean use_locking;
+ char trace_ascii;
+ CALDAV_ACTION ACTION;
+ time_t start;
+ time_t end;
+};
+
+/**
+ * @typedef struct MemoryStruct memory_ptr
+ * A pointer to a struct MemoryStruct
+ */
+typedef struct MemoryStruct memory_ptr;
+
+/**
+ * @struct MemoryStruct
+ * Used to hold messages between the CalDAV server and the library
+ */
+struct MemoryStruct {
+ char *memory;
+ size_t size;
+};
+
+/** @struct config_data
+ * Used to exchange user options to the library
+ */
+struct config_data {
+ char trace_ascii;
+};
+
+/**
+ * This function is burrowed from the libcurl documentation
+ * @param text
+ * @param stream
+ * @param ptr
+ * @param size
+ * @param nohex
+ */
+void dump(const char* text, FILE* stream, char* ptr, size_t size, char nohex);
+
+/**
+ * This function is burrowed from the libcurl documentation
+ * @param handle
+ * @param type
+ * @param data
+ * @param size
+ * @param userp
+ * @return
+ */
+int my_trace(CURL* handle, curl_infotype type, char* data, size_t size, void* userp);
+
+/**
+ * This function is burrowed from the libcurl documentation
+ * @param ptr
+ * @param size
+ * @return void* to memory region
+ */
+size_t WriteMemoryCallback(void* ptr, size_t size, size_t nmemb, void* data);
+
+/**
+ * This function is burrowed from the libcurl documentation
+ * @param ptr
+ * @param size
+ * @param nmemb
+ * @param data
+ * @return number of written bytes
+ */
+size_t WriteHeaderCallback(void* ptr, size_t size, size_t nmemb, void* data);
+
+/*size_t ReadMemoryCallback(void* ptr, size_t size, size_t nmemb, void* data);*/
+
+/**
+ * Initialize caldav settings structure.
+ * @param settings @see caldav_settings
+ */
+void init_caldav_settings(caldav_settings* settings);
+
+/**
+ * Free momory assigned to caldav settings structure.
+ * @param settings @see caldav_settings
+ */
+void free_caldav_settings(caldav_settings* settings);
+
+/**
+ * Parse URL
+ * @param settings @see caldav_settings
+ * @param url String containing URL to collection
+ */
+void parse_url(caldav_settings* settings, const char* url);
+
+/**
+ * Find a specific HTTP header from last request
+ * @param header HTTP header to search for
+ * @param headers String of HTTP headers from last request
+ * @param lowcase Should string be returned in all lower case.
+ * @return The header found or NULL
+ */
+gchar* get_response_header(
+ const char* header, gchar* headers, gboolean lowcase);
+
+/**
+ * Parse response from CalDAV server
+ * @param report Response from server
+ * @param element XML element to find
+ * @param type VCalendar element to find
+ * @return the parsed result
+ */
+gchar* parse_caldav_report(char* report, const char* element, const char* type);
+
+/**
+ * Convert a time_t variable to CalDAV DateTime
+ * @param time a specific date and time
+ * @return the CalDAV DateTime
+ */
+gchar* get_caldav_datetime(time_t* time);
+
+/**
+ * Create a random text string, using MD5. @see caldav_md5_hex_digest()
+ * @param text some text to randomize
+ * @return MD5 hash of text
+ */
+gchar* random_file_name(gchar* text);
+
+/**
+ * Does the event contain a UID element or not. If not add it.
+ * @param object A specific event
+ * @return event, eventually added UID
+ */
+gchar* verify_uid(gchar* object);
+
+/**
+ * Fetch a URL from a XML element
+ * @param text String
+ * @return URL
+ */
+gchar* get_url(gchar* text);
+
+/**
+ * Fetch host from URL
+ * @param url URL
+ * @return host
+ */
+gchar* get_host(gchar* url);
+
+/**
+ * Fetch the etag element from XML
+ * @param text String
+ * @return etag
+ */
+gchar* get_etag(gchar* text);
+
+/**
+ * Fetch any element from XML
+ * @param text String
+ * @return element
+ */
+gchar* get_tag(const gchar* tag, gchar* text);
+
+
+
+/**
+ * rebuild a raw URL with https if needed from the settings
+ * @param settings caldav_settings
+ * @return URL
+ */
+gchar* rebuild_url(caldav_settings* setting, gchar* uri);
+
+/**
+ * Prepare a curl connection
+ * @param settings caldav_settings
+ * @return CURL
+ */
+CURL* get_curl(caldav_settings* setting);
+
+#endif
diff --git a/src/caldav.c b/src/caldav.c
new file mode 100644
index 0000000..9e2b0af
--- /dev/null
+++ b/src/caldav.c
@@ -0,0 +1,995 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "caldav.h"
+#include "caldav-utils.h"
+#include "get-caldav-report.h"
+#include "add-caldav-object.h"
+#include "delete-caldav-object.h"
+#include "modify-caldav-object.h"
+#include "get-display-name.h"
+#include "options-caldav-server.h"
+#include "get-freebusy-report.h"
+#include <curl/curl.h>
+#include <glib.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+static void init_runtime(runtime_info* info) {
+ if (! info)
+ return;
+ if (! info->error)
+ info->error = g_new0(caldav_error, 1);
+ if (! info->options) {
+ info->options = g_new0(debug_curl, 1);
+ info->options->trace_ascii = 1;
+ info->options->debug = 0;
+ info->options->verify_ssl_certificate = TRUE;
+ info->options->use_locking = TRUE;
+ info->options->custom_cacert = NULL;
+ }
+}
+
+/**
+ * @param curl An instance of libcurl.
+ * @param settings Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. URL is part of the structure. [http://][username:password@]host[:port]/url-path.
+ * See (RFC1738).
+ * @return FALSE (zero) mens URL does not reference a CalDAV calendar
+ * resource. TRUE if the URL does reference a CalDAV calendar resource.
+ */
+static gboolean test_caldav_enabled(CURL* curl,
+ caldav_settings* settings,
+ caldav_error* error) {
+ return caldav_getoptions(curl, settings, NULL, error, TRUE);
+}
+
+/*
+ * @param settings An instance of caldav_settings. @see caldav_settings
+ * @return TRUE if there was an error. Error can be in libcurl, in libcaldav,
+ * or an error related to the CalDAV protocol.
+ */
+static gboolean make_caldav_call(caldav_settings* settings,
+ runtime_info* info) {
+ CURL* curl;
+ gboolean result = FALSE;
+
+ g_return_val_if_fail(info != NULL, TRUE);
+
+ curl = get_curl(settings);
+ if (!curl) {
+ info->error->str = g_strdup("Could not initialize libcurl");
+ g_free(settings->file);
+ settings->file = NULL;
+ return TRUE;
+ }
+ if (!test_caldav_enabled(curl, settings, info->error)) {
+ g_free(settings->file);
+ settings->file = NULL;
+ curl_easy_cleanup(curl);
+ return TRUE;
+ }
+ curl_easy_cleanup(curl);
+ switch (settings->ACTION) {
+ case GETALL: result = caldav_getall(settings, info->error); break;
+ case GET: result = caldav_getrange(settings, info->error); break;
+ case GETALLTASKS: result = caldav_tasks_getall(settings, info->error); break;
+ case GETTASKS: result = caldav_tasks_getrange(settings, info->error); break;
+ case ADD: result = caldav_add(settings, info->error); break;
+ case DELETE: result = caldav_delete(settings, info->error); break;
+ case MODIFY: result = caldav_modify(settings, info->error); break;
+ case DELETETASKS: result = caldav_tasks_delete(settings, info->error); break;
+ case MODIFYTASKS: result = caldav_tasks_modify(settings, info->error); break;
+ case GETCALNAME: result = caldav_getname(settings, info->error); break;
+ case FREEBUSY: result = caldav_freebusy(settings, info->error); break;
+ default: break;
+ }
+ return result;
+}
+
+/**
+ * Function for adding a new event.
+ * @param object Appointment following ICal format (RFC2445). Receiver is
+ * responsible for freeing the memory.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_add_object(const char* object,
+ const char* URL,
+ runtime_info* info) {
+ caldav_settings settings;
+ CALDAV_RESPONSE caldav_response;
+
+ g_return_val_if_fail(info != NULL, TRUE);
+
+ init_runtime(info);
+ init_caldav_settings(&settings);
+ settings.file = g_strdup(object);
+ settings.ACTION = ADD;
+ if (info->options->debug)
+ settings.debug = TRUE;
+ else
+ settings.debug = FALSE;
+ if (info->options->trace_ascii)
+ settings.trace_ascii = 1;
+ else
+ settings.trace_ascii = 0;
+ if (info->options->use_locking)
+ settings.use_locking = 1;
+ else
+ settings.use_locking = 0;
+ parse_url(&settings, URL);
+ gboolean res = make_caldav_call(&settings, info);
+ if (res) {
+ if (info->error->code > 0) {
+ switch (info->error->code) {
+ case 403: caldav_response = FORBIDDEN; break;
+ case 409: caldav_response = CONFLICT; break;
+ case 423: caldav_response = LOCKED; break;
+ case 501: caldav_response = NOTIMPLEMENTED; break;
+ default: caldav_response = CONFLICT; break;
+ }
+ }
+ else {
+ /* fall-back to conflicting state */
+ caldav_response = CONFLICT;
+ }
+ }
+ else {
+ caldav_response = OK;
+ }
+ free_caldav_settings(&settings);
+ return caldav_response;
+}
+
+/**
+ * Function for deleting an event.
+ * @param object Appointment following ICal format (RFC2445). Receiver is
+ * responsible for freeing the memory.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_delete_object(const char* object,
+ const char* URL,
+ runtime_info* info) {
+ caldav_settings settings;
+ CALDAV_RESPONSE caldav_response;
+
+ g_return_val_if_fail(info != NULL, TRUE);
+
+ init_runtime(info);
+ init_caldav_settings(&settings);
+ settings.file = g_strdup(object);
+ settings.ACTION = DELETE;
+ if (info->options->debug)
+ settings.debug = TRUE;
+ else
+ settings.debug = FALSE;
+ if (info->options->trace_ascii)
+ settings.trace_ascii = 1;
+ else
+ settings.trace_ascii = 0;
+ if (info->options->use_locking)
+ settings.use_locking = 1;
+ else
+ settings.use_locking = 0;
+ parse_url(&settings, URL);
+ gboolean res = make_caldav_call(&settings, info);
+ if (res) {
+ if (info->error->code > 0) {
+ switch (info->error->code) {
+ case 403: caldav_response = FORBIDDEN; break;
+ case 409: caldav_response = CONFLICT; break;
+ case 423: caldav_response = LOCKED; break;
+ case 501: caldav_response = NOTIMPLEMENTED; break;
+ default: caldav_response = CONFLICT; break;
+ }
+ }
+ else {
+ /* fall-back to conflicting state */
+ caldav_response = CONFLICT;
+ }
+ }
+ else {
+ caldav_response = OK;
+ }
+ free_caldav_settings(&settings);
+ return caldav_response;
+}
+
+/**
+ * Function for modifying an event.
+ * @param object Appointment following ICal format (RFC2445). Receiver is
+ * responsible for freeing the memory.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_modify_object(const char* object,
+ const char* URL,
+ runtime_info* info) {
+ caldav_settings settings;
+ CALDAV_RESPONSE caldav_response;
+
+ g_return_val_if_fail(info != NULL, TRUE);
+
+ init_runtime(info);
+ init_caldav_settings(&settings);
+ settings.file = g_strdup(object);
+ settings.ACTION = MODIFY;
+ if (info->options->debug)
+ settings.debug = TRUE;
+ else
+ settings.debug = FALSE;
+ if (info->options->trace_ascii)
+ settings.trace_ascii = 1;
+ else
+ settings.trace_ascii = 0;
+ if (info->options->use_locking)
+ settings.use_locking = 1;
+ else
+ settings.use_locking = 0;
+ parse_url(&settings, URL);
+ gboolean res = make_caldav_call(&settings, info);
+ if (res) {
+ if (info->error->code > 0) {
+ switch (info->error->code) {
+ case 403: caldav_response = FORBIDDEN; break;
+ case 409: caldav_response = CONFLICT; break;
+ case 423: caldav_response = LOCKED; break;
+ case 501: caldav_response = NOTIMPLEMENTED; break;
+ default: caldav_response = CONFLICT; break;
+ }
+ }
+ else {
+ /* fall-back to conflicting state */
+ caldav_response = CONFLICT;
+ }
+ }
+ else {
+ caldav_response = OK;
+ }
+ free_caldav_settings(&settings);
+ return caldav_response;
+}
+
+/**
+ * Function for getting a collection of events determined by time range.
+ * @param result A pointer to struct _response where the result is to stored.
+ * @see response. Caller is responsible for freeing the memory.
+ * @param start time_t variable specifying start and end for range. Both
+ * are included in range.
+ * @param end time_t variable specifying start and end for range. Both
+ * are included in range.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_get_object(response *result,
+ time_t start,
+ time_t end,
+ const char* URL,
+ runtime_info* info) {
+ caldav_settings settings;
+ CALDAV_RESPONSE caldav_response;
+
+ g_return_val_if_fail(info != NULL, TRUE);
+
+ init_runtime(info);
+ if (!result) {
+ result = malloc(sizeof(response *));
+ memset(result, '\0', sizeof(response *));
+ }
+ init_caldav_settings(&settings);
+ settings.ACTION = GET;
+ settings.start = start;
+ settings.end = end;
+ if (info->options->debug)
+ settings.debug = TRUE;
+ else
+ settings.debug = FALSE;
+ if (info->options->trace_ascii)
+ settings.trace_ascii = 1;
+ else
+ settings.trace_ascii = 0;
+ if (info->options->use_locking)
+ settings.use_locking = 1;
+ else
+ settings.use_locking = 0;
+ parse_url(&settings, URL);
+ gboolean res = make_caldav_call(&settings, info);
+ if (res) {
+ result->msg = NULL;
+ if (info->error->code > 0) {
+ switch (info->error->code) {
+ case 403: caldav_response = FORBIDDEN; break;
+ case 409: caldav_response = CONFLICT; break;
+ case 423: caldav_response = LOCKED; break;
+ case 501: caldav_response = NOTIMPLEMENTED; break;
+ default: caldav_response = CONFLICT; break;
+ }
+ }
+ else {
+ /* fall-back to conflicting state */
+ caldav_response = CONFLICT;
+ }
+ }
+ else {
+ result->msg = g_strdup(settings.file);
+ caldav_response = OK;
+ }
+ free_caldav_settings(&settings);
+ return caldav_response;
+}
+
+/**
+ * Function for getting all events from the collection.
+ * @param result A pointer to struct _response where the result is to stored.
+ * @see response. Caller is responsible for freeing the memory.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_getall_object(response* result,
+ const char* URL,
+ runtime_info* info) {
+ caldav_settings settings;
+ CALDAV_RESPONSE caldav_response;
+
+ g_return_val_if_fail(info != NULL, TRUE);
+
+ init_runtime(info);
+ if (!result) {
+ result = malloc(sizeof(response *));
+ memset(result, '\0', sizeof(response *));
+ }
+ init_caldav_settings(&settings);
+ settings.ACTION = GETALL;
+ if (info->options->debug)
+ settings.debug = TRUE;
+ else
+ settings.debug = FALSE;
+ if (info->options->trace_ascii)
+ settings.trace_ascii = 1;
+ else
+ settings.trace_ascii = 0;
+ if (info->options->use_locking)
+ settings.use_locking = 1;
+ else
+ settings.use_locking = 0;
+ parse_url(&settings, URL);
+ gboolean res = make_caldav_call(&settings, info);
+ if (res) {
+ result->msg = NULL;
+ if (info->error->code > 0) {
+ switch (info->error->code) {
+ case 403: caldav_response = FORBIDDEN; break;
+ case 409: caldav_response = CONFLICT; break;
+ case 423: caldav_response = LOCKED; break;
+ case 501: caldav_response = NOTIMPLEMENTED; break;
+ default: caldav_response = CONFLICT; break;
+ }
+ }
+ else {
+ /* fall-back to conflicting state */
+ caldav_response = CONFLICT;
+ }
+ }
+ else {
+ result->msg = g_strdup(settings.file);
+ caldav_response = OK;
+ }
+ free_caldav_settings(&settings);
+ return caldav_response;
+}
+
+/**
+ * Function for deleting a task.
+ * @param object Appointment following ICal format (RFC2445). Receiver is
+ * responsible for freeing the memory.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_tasks_delete_object(const char* object,
+ const char* URL,
+ runtime_info* info) {
+ caldav_settings settings;
+ CALDAV_RESPONSE caldav_response;
+
+ g_return_val_if_fail(info != NULL, TRUE);
+
+ init_runtime(info);
+ init_caldav_settings(&settings);
+ settings.file = g_strdup(object);
+ settings.ACTION = DELETETASKS;
+ if (info->options->debug)
+ settings.debug = TRUE;
+ else
+ settings.debug = FALSE;
+ if (info->options->trace_ascii)
+ settings.trace_ascii = 1;
+ else
+ settings.trace_ascii = 0;
+ if (info->options->use_locking)
+ settings.use_locking = 1;
+ else
+ settings.use_locking = 0;
+ parse_url(&settings, URL);
+ gboolean res = make_caldav_call(&settings, info);
+ if (res) {
+ if (info->error->code > 0) {
+ switch (info->error->code) {
+ case 403: caldav_response = FORBIDDEN; break;
+ case 409: caldav_response = CONFLICT; break;
+ case 423: caldav_response = LOCKED; break;
+ case 501: caldav_response = NOTIMPLEMENTED; break;
+ default: caldav_response = CONFLICT; break;
+ }
+ }
+ else {
+ /* fall-back to conflicting state */
+ caldav_response = CONFLICT;
+ }
+ }
+ else {
+ caldav_response = OK;
+ }
+ free_caldav_settings(&settings);
+ return caldav_response;
+}
+
+/**
+ * Function for modifying a task.
+ * @param object Appointment following ICal format (RFC2445). Receiver is
+ * responsible for freeing the memory.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_tasks_modify_object(const char* object,
+ const char* URL,
+ runtime_info* info) {
+ caldav_settings settings;
+ CALDAV_RESPONSE caldav_response;
+
+ g_return_val_if_fail(info != NULL, TRUE);
+
+ init_runtime(info);
+ init_caldav_settings(&settings);
+ settings.file = g_strdup(object);
+ settings.ACTION = MODIFYTASKS;
+ if (info->options->debug)
+ settings.debug = TRUE;
+ else
+ settings.debug = FALSE;
+ if (info->options->trace_ascii)
+ settings.trace_ascii = 1;
+ else
+ settings.trace_ascii = 0;
+ if (info->options->use_locking)
+ settings.use_locking = 1;
+ else
+ settings.use_locking = 0;
+ parse_url(&settings, URL);
+ gboolean res = make_caldav_call(&settings, info);
+ if (res) {
+ if (info->error->code > 0) {
+ switch (info->error->code) {
+ case 403: caldav_response = FORBIDDEN; break;
+ case 409: caldav_response = CONFLICT; break;
+ case 423: caldav_response = LOCKED; break;
+ case 501: caldav_response = NOTIMPLEMENTED; break;
+ default: caldav_response = CONFLICT; break;
+ }
+ }
+ else {
+ /* fall-back to conflicting state */
+ caldav_response = CONFLICT;
+ }
+ }
+ else {
+ caldav_response = OK;
+ }
+ free_caldav_settings(&settings);
+ return caldav_response;
+}
+
+/**
+ * Function for getting a collection of tasks determined by time range.
+ * @param result A pointer to struct _response where the result is to stored.
+ * @see response. Caller is responsible for freeing the memory.
+ * @param start time_t variable specifying start and end for range. Both
+ * are included in range.
+ * @param end time_t variable specifying start and end for range. Both
+ * are included in range.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_tasks_get_object(response *result,
+ time_t start,
+ time_t end,
+ const char* URL,
+ runtime_info* info) {
+ caldav_settings settings;
+ CALDAV_RESPONSE caldav_response;
+
+ g_return_val_if_fail(info != NULL, TRUE);
+
+ init_runtime(info);
+ if (!result) {
+ result = malloc(sizeof(response *));
+ memset(result, '\0', sizeof(response *));
+ }
+ init_caldav_settings(&settings);
+ settings.ACTION = GETTASKS;
+ settings.start = start;
+ settings.end = end;
+ if (info->options->debug)
+ settings.debug = TRUE;
+ else
+ settings.debug = FALSE;
+ if (info->options->trace_ascii)
+ settings.trace_ascii = 1;
+ else
+ settings.trace_ascii = 0;
+ if (info->options->use_locking)
+ settings.use_locking = 1;
+ else
+ settings.use_locking = 0;
+ parse_url(&settings, URL);
+ gboolean res = make_caldav_call(&settings, info);
+ if (res) {
+ result->msg = NULL;
+ if (info->error->code > 0) {
+ switch (info->error->code) {
+ case 403: caldav_response = FORBIDDEN; break;
+ case 409: caldav_response = CONFLICT; break;
+ case 423: caldav_response = LOCKED; break;
+ case 501: caldav_response = NOTIMPLEMENTED; break;
+ default: caldav_response = CONFLICT; break;
+ }
+ }
+ else {
+ /* fall-back to conflicting state */
+ caldav_response = CONFLICT;
+ }
+ }
+ else {
+ result->msg = g_strdup(settings.file);
+ caldav_response = OK;
+ }
+ free_caldav_settings(&settings);
+ return caldav_response;
+}
+
+/**
+ * Function for getting all tasks from the collection.
+ * @param result A pointer to struct _response where the result is to stored.
+ * @see response. Caller is responsible for freeing the memory.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_tasks_getall_object(response* result,
+ const char* URL,
+ runtime_info* info) {
+ caldav_settings settings;
+ CALDAV_RESPONSE caldav_response;
+
+ g_return_val_if_fail(info != NULL, TRUE);
+
+ init_runtime(info);
+ if (!result) {
+ result = malloc(sizeof(response *));
+ memset(result, '\0', sizeof(response *));
+ }
+ init_caldav_settings(&settings);
+ settings.ACTION = GETALLTASKS;
+ if (info->options->debug)
+ settings.debug = TRUE;
+ else
+ settings.debug = FALSE;
+ if (info->options->trace_ascii)
+ settings.trace_ascii = 1;
+ else
+ settings.trace_ascii = 0;
+ if (info->options->use_locking)
+ settings.use_locking = 1;
+ else
+ settings.use_locking = 0;
+ parse_url(&settings, URL);
+ gboolean res = make_caldav_call(&settings, info);
+ if (res) {
+ result->msg = NULL;
+ if (info->error->code > 0) {
+ switch (info->error->code) {
+ case 403: caldav_response = FORBIDDEN; break;
+ case 409: caldav_response = CONFLICT; break;
+ case 423: caldav_response = LOCKED; break;
+ case 501: caldav_response = NOTIMPLEMENTED; break;
+ default: caldav_response = CONFLICT; break;
+ }
+ }
+ else {
+ /* fall-back to conflicting state */
+ caldav_response = CONFLICT;
+ }
+ }
+ else {
+ result->msg = g_strdup(settings.file);
+ caldav_response = OK;
+ }
+ free_caldav_settings(&settings);
+ return caldav_response;
+}
+
+/**
+ * Function for getting the stored display name for the collection.
+ * @param result A pointer to struct _response where the result is to stored.
+ * @see response. Caller is responsible for freeing the memory.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_get_displayname(response* result,
+ const char* URL,
+ runtime_info* info) {
+ caldav_settings settings;
+ CALDAV_RESPONSE caldav_response;
+
+ g_return_val_if_fail(info != NULL, TRUE);
+
+ init_runtime(info);
+ if (!result) {
+ result = malloc(sizeof(response *));
+ memset(result, '\0', sizeof(response *));
+ }
+ init_caldav_settings(&settings);
+ settings.ACTION = GETCALNAME;
+ if (info->options->debug)
+ settings.debug = TRUE;
+ else
+ settings.debug = FALSE;
+ if (info->options->trace_ascii)
+ settings.trace_ascii = 1;
+ else
+ settings.trace_ascii = 0;
+ if (info->options->use_locking)
+ settings.use_locking = 1;
+ else
+ settings.use_locking = 0;
+ parse_url(&settings, URL);
+ gboolean res = make_caldav_call(&settings, info);
+ if (res) {
+ result->msg = NULL;
+ if (info->error->code > 0) {
+ switch (info->error->code) {
+ case 403: caldav_response = FORBIDDEN; break;
+ case 409: caldav_response = CONFLICT; break;
+ case 423: caldav_response = LOCKED; break;
+ case 501: caldav_response = NOTIMPLEMENTED; break;
+ default: caldav_response = CONFLICT; break;
+ }
+ }
+ else {
+ /* fall-back to conflicting state */
+ caldav_response = CONFLICT;
+ }
+ }
+ else {
+ result->msg = g_strdup(settings.file);
+ caldav_response = OK;
+ }
+ free_caldav_settings(&settings);
+ return caldav_response;
+}
+
+/**
+ * Function to test wether a calendar resource is CalDAV enabled or not.
+ * @param URL Defines CalDAV resource. Receiver is responsible for
+ * freeing the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @result 0 (zero) means no CalDAV support, otherwise CalDAV support
+ * detechted.
+ */
+int caldav_enabled_resource(const char* URL, runtime_info* info) {
+ CURL* curl;
+ caldav_settings settings;
+ struct config_data data;
+
+ g_return_val_if_fail(info != NULL, TRUE);
+
+ init_runtime(info);
+ init_caldav_settings(&settings);
+
+ parse_url(&settings, URL);
+ curl = get_curl(&settings);
+ if (!curl) {
+ info->error->code = -1;
+ info->error->str = g_strdup("Could not initialize libcurl");
+ settings.file = NULL;
+ return TRUE;
+ }
+
+ if (info->options->trace_ascii)
+ data.trace_ascii = 1;
+ else
+ data.trace_ascii = 0;
+ if (info->options->use_locking)
+ settings.use_locking = 1;
+ else
+ settings.use_locking = 0;
+
+ if (info->options->debug) {
+ curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
+ curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
+ }
+ gboolean res = test_caldav_enabled(curl, &settings, info->error);
+ free_caldav_settings(&settings);
+ curl_easy_cleanup(curl);
+ return (res && (info->error->code == 0 || info->error->code == 200)) ? 1 : 0;
+}
+
+/**
+ * Function for getting free/busy information.
+ * @param result A pointer to struct _response where the result is to stored.
+ * @see response. Caller is responsible for freeing the memory.
+ * @param start time_t variable specifying start and end for range. Both
+ * are included in range.
+ * @param end time_t variable specifying start and end for range. Both
+ * are included in range.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_get_freebusy(response *result,
+ time_t start,
+ time_t end,
+ const char* URL,
+ runtime_info* info) {
+ caldav_settings settings;
+ CALDAV_RESPONSE caldav_response;
+
+ g_return_val_if_fail(info != NULL, TRUE);
+
+ init_runtime(info);
+ if (!result) {
+ result = malloc(sizeof(response *));
+ memset(result, '\0', sizeof(response *));
+ }
+ init_caldav_settings(&settings);
+ settings.ACTION = FREEBUSY;
+ settings.start = start;
+ settings.end = end;
+ if (info->options->debug)
+ settings.debug = TRUE;
+ else
+ settings.debug = FALSE;
+ if (info->options->trace_ascii)
+ settings.trace_ascii = 1;
+ else
+ settings.trace_ascii = 0;
+ if (info->options->use_locking)
+ settings.use_locking = 1;
+ else
+ settings.use_locking = 0;
+ parse_url(&settings, URL);
+ gboolean res = make_caldav_call(&settings, info);
+ if (res) {
+ result->msg = NULL;
+ if (info->error->code > 0) {
+ switch (info->error->code) {
+ case 403: caldav_response = FORBIDDEN; break;
+ case 409: caldav_response = CONFLICT; break;
+ case 423: caldav_response = LOCKED; break;
+ case 501: caldav_response = NOTIMPLEMENTED; break;
+ default: caldav_response = CONFLICT; break;
+ }
+ }
+ else {
+ /* fall-back to conflicting state */
+ caldav_response = CONFLICT;
+ }
+ }
+ else {
+ result->msg = g_strdup(settings.file);
+ caldav_response = OK;
+ }
+ free_caldav_settings(&settings);
+ return caldav_response;
+}
+
+/**
+ * Function which supports sending various options inside the library.
+ * @param curl_options A struct debug_curl. See debug_curl.
+ */
+void caldav_set_options(debug_curl curl_options) {
+}
+
+/**
+ * @deprecated Function to call in case of errors.
+ * Caller provides a pointer to a local caldav_error structure.
+ * Caldav_get_error will initialize pointer if NULL.
+ * Caller is responsible for freeing returned memory.
+ * After the first call the internal error buffer is reset.
+ * @param lib_error A pointer to a struct _caldav_error. @see _caldav_error
+ * @return An initialized caldav_error pointer to memory where error
+ * messages can be found from the last call to the library.
+ */
+caldav_error* caldav_get_error(caldav_error* lib_error) {
+ if (!lib_error) {
+ lib_error = g_new0(caldav_error, 1);
+ }
+ return lib_error;
+}
+
+/**
+ * Function for freeing memory for a previous initialization of a
+ * caldav_error. @see caldav_get_error()
+ * Caller provides a pointer to a local caldav_error structure.
+ * @param lib_error A pointer to a struct _caldav_error. @see _caldav_error
+ */
+void caldav_free_error(caldav_error* lib_error) {
+ if (lib_error->str)
+ g_free(lib_error->str);
+ g_free(lib_error);
+ lib_error = NULL;
+}
+
+/**
+ * Function to call to get a list of supported CalDAV options for a server
+ * @param URL Defines CalDAV resource. Receiver is responsible for
+ * freeing the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @result A list of available options or NULL in case of any error.
+ */
+char** caldav_get_server_options(const char* URL, runtime_info* info) {
+ CURL* curl;
+ caldav_settings settings;
+ response server_options;
+ gchar** option_list = NULL;
+ gchar** tmp;
+ gboolean res = FALSE;
+
+ g_return_val_if_fail(info != NULL, NULL);
+
+ init_runtime(info);
+ tmp = option_list = NULL;
+ init_caldav_settings(&settings);
+
+ parse_url(&settings, URL);
+ curl = get_curl(&settings);
+ if (!curl) {
+ info->error->code = -1;
+ info->error->str = g_strdup("Could not initialize libcurl");
+ settings.file = NULL;
+ return NULL;
+ }
+ if (info->options->use_locking)
+ settings.use_locking = 1;
+ else
+ settings.use_locking = 0;
+
+ res = caldav_getoptions(curl, &settings, &server_options, info->error, FALSE);
+ if (res) {
+ if (server_options.msg) {
+ option_list = g_strsplit(server_options.msg, ", ", 0);
+ tmp = &(*(option_list));
+ while (*tmp) {
+ g_strstrip(*tmp++);
+ }
+ }
+ }
+ free_caldav_settings(&settings);
+ curl_easy_cleanup(curl);
+ return (option_list) ? option_list : NULL;
+}
+
+/**
+ * Function for getting an initialized runtime_info structure
+ * @return runtime_info. @see runtime_info
+ */
+runtime_info* caldav_get_runtime_info() {
+ runtime_info* rt_info;
+
+ rt_info = g_new0(runtime_info, 1);
+ rt_info->error = g_new0(caldav_error, 1);
+ rt_info->options = g_new0(debug_curl, 1);
+
+ return rt_info;
+}
+
+/**
+ * Function for freeing memory for a previous initialization of an info
+ * structure
+ * @param info Address to a pointer to a runtime_info structure. @see
+ * runtime_info
+ */
+void caldav_free_runtime_info(runtime_info** info) {
+ runtime_info* ri;
+
+ if (*info) {
+ ri = *info;
+ if (ri->error) {
+ if (ri->error->str)
+ g_free(ri->error->str);
+ g_free(ri->error);
+ ri->error = NULL;
+ }
+ if (ri->options) {
+ if (ri->options->custom_cacert)
+ g_free(ri->options->custom_cacert);
+ g_free(ri->options);
+ ri->options = NULL;
+ }
+ g_free(ri);
+ *info = ri = NULL;
+ }
+}
+
+/**
+ * Function for getting an initialized response structure
+ * @return response. @see _response
+ */
+response* caldav_get_response() {
+ response* r;
+
+ r = g_new0(response, 1);
+
+ return r;
+}
+
+/**
+ * Function for freeing memory for a previous initialization of an response
+ * structure
+ * @param info Address to a pointer to a response structure. @see
+ * _response
+ */
+void caldav_free_response(response** resp) {
+ response* r;
+
+ if (*resp) {
+ r = *resp;
+ if (r->msg)
+ g_free(r->msg);
+ g_free(r);
+ *resp = r = NULL;
+ }
+}
diff --git a/src/caldav.h b/src/caldav.h
new file mode 100644
index 0000000..5734404
--- /dev/null
+++ b/src/caldav.h
@@ -0,0 +1,407 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/**
+ * @file caldav.h
+ * @brief interface to the caldav library.
+ * The library conforms to RFC4791. For further information follow this
+ * link http://www.ietf.org/rfc/rfc4791.txt
+ */
+
+/**
+ * @mainpage
+ * This document is the documentation for the public interface to libcaldav.
+ * If you want to study the implementation look for the developers API.
+ *
+ * The libray and documentation is Copyright (c) 2008 Michael Rasmussen
+ * (mir@datanom.net)
+ *
+ * License for the source code.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * License for the documentation.
+ *
+ * Permission is granted to copy, distribute and/or modify this document
+ * under the terms of the GNU Free Documentation License, Version 1.2
+ * or any later version published by the Free Software Foundation;
+ * with no Invariant Sections, no Front-Cover Texts, and no Back-Cover
+ * Texts.
+ */
+
+#ifndef __CALDAV_H__
+#define __CALDAV_H__
+
+#include <time.h>
+
+/* For debug purposes */
+/**
+ * @typedef struct debug_curl
+ * A struct used to set internal options in the library
+ */
+typedef struct {
+ int trace_ascii; /** @var int trace_ascii
+ * 0 or 1
+ */
+ int debug; /** @var int debug
+ * 0 or 1
+ */
+ int verify_ssl_certificate;
+ int use_locking;
+ char* custom_cacert;
+} debug_curl;
+
+/**
+ * @typedef struct _caldav_error caldav_error
+ * Pointer to a caldav_error structure
+ */
+typedef struct _caldav_error caldav_error;
+
+/**
+ * @struct _caldav_error
+ * A struct for storing error codes and messages
+ */
+struct _caldav_error {
+ long code; /**
+ * @var long code
+ * if < 0 internal error > 0 CalDAV protocol error.
+ */
+ char* str; /** @var char* str
+ * For storing human readable error message
+ */
+};
+
+/**
+ * @typedef struct runtime_info
+ * Pointer to a runtime structure holding debug and error information
+ */
+typedef struct {
+ caldav_error* error;
+ debug_curl* options;
+} runtime_info;
+
+/* CalDAV is defined in RFC4791 */
+
+/* Buffer to hold response */
+/**
+ * @typedef struct _response response
+ * Pointer to a _response structure
+ */
+typedef struct _response response;
+
+/**
+ * @struct _response
+ * A struct used for returning messages from the library to users
+ */
+struct _response {
+ char* msg; /** @var char* msg
+ * String for storing response
+ */
+};
+
+/**
+ * @enum CALDAV_ACTION specifies supported CalDAV actions.
+ * UNKNOWN. An unknown action.
+ * ADD. Add a CalDAV calendar object.
+ * DELETE. Delete a CalDAV calendar object.
+ * MODIFY. Modify a CalDAV calendar object.
+ * GET. Get one or more CalDAV calendar object(s).
+ * GETALL. Get all CalDAV calendar objects.
+ */
+typedef enum {
+ UNKNOWN,
+ ADD,
+ DELETE,
+ FREEBUSY,
+ MODIFY,
+ GET,
+ GETALL,
+ GETCALNAME,
+ ISCALDAV,
+ OPTIONS,
+ DELETETASKS,
+ MODIFYTASKS,
+ GETTASKS,
+ GETALLTASKS,
+} CALDAV_ACTION;
+
+/**
+ * @enum CALDAV_RESPONSE specifies CalDAV error states.
+ * OK (HTTP 200). Request was satisfied.
+ * FORBIDDEN (HTTP 403). Access not allowed. Dont repeat request.
+ * CONFLICT (HTTP 409). Conflict between current state of CalDAV collection
+ * and request. Client must solve the conflict and then resend request.
+ * LOCKED (HTTP 423). Locking failed.
+ */
+typedef enum {
+ OK,
+ FORBIDDEN,
+ CONFLICT,
+ LOCKED,
+ NOTIMPLEMENTED
+} CALDAV_RESPONSE;
+
+
+#ifndef __CALDAV_USERAGENT
+#define __CALDAV_USERAGENT "libcurl-agent/0.1"
+#endif
+
+
+/**
+ * Function for adding a new event.
+ * @param object Appointment following ICal format (RFC2445). Receiver is
+ * responsible for freeing the memory.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @param info Pointer to a runtime_info structure. @see runtime_info
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_add_object(const char* object,
+ const char* URL,
+ runtime_info* info);
+
+/**
+ * Function for deleting an event.
+ * @param object Appointment following ICal format (RFC2445). Receiver is
+ * responsible for freeing the memory.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @param info Pointer to a runtime_info structure. @see runtime_info
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_delete_object(const char* object,
+ const char* URL,
+ runtime_info* info);
+
+/**
+ * Function for modifying an event.
+ * @param object Appointment following ICal format (RFC2445). Receiver is
+ * responsible for freeing the memory.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @param info Pointer to a runtime_info structure. @see runtime_info
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_modify_object(const char* object,
+ const char* URL,
+ runtime_info* info);
+
+/**
+ * Function for getting a collection of events determined by time range.
+ * @param result A pointer to struct _response where the result is to stored.
+ * @see response. Caller is responsible for freeing the memory.
+ * @param start time_t variable specifying start for range. Included in search.
+ * @param end time_t variable specifying end for range. Included in search.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @param info Pointer to a runtime_info structure. @see runtime_info
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_get_object(response* result,
+ time_t start,
+ time_t end,
+ const char* URL,
+ runtime_info* info);
+
+/**
+ * Function for getting all events from the collection.
+ * @param result A pointer to struct _response where the result is to stored.
+ * @see response. Caller is responsible for freeing the memory.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @param info Pointer to a runtime_info structure. @see runtime_info
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_getall_object(response* result,
+ const char* URL,
+ runtime_info* info);
+
+/**
+ * Function for deleting a task.
+ * @param object Appointment following ICal format (RFC2445). Receiver is
+ * responsible for freeing the memory.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @param info Pointer to a runtime_info structure. @see runtime_info
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_tasks_delete_object(const char* object,
+ const char* URL,
+ runtime_info* info);
+
+/**
+ * Function for modifying a task.
+ * @param object Appointment following ICal format (RFC2445). Receiver is
+ * responsible for freeing the memory.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @param info Pointer to a runtime_info structure. @see runtime_info
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_tasks_modify_object(const char* object,
+ const char* URL,
+ runtime_info* info);
+
+/**
+ * Function for getting a collection of tasks determined by time range.
+ * @param result A pointer to struct _response where the result is to stored.
+ * @see response. Caller is responsible for freeing the memory.
+ * @param start time_t variable specifying start for range. Included in search.
+ * @param end time_t variable specifying end for range. Included in search.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @param info Pointer to a runtime_info structure. @see runtime_info
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_tasks_get_object(response* result,
+ time_t start,
+ time_t end,
+ const char* URL,
+ runtime_info* info);
+
+/**
+ * Function for getting all tasks from the collection.
+ * @param result A pointer to struct _response where the result is to stored.
+ * @see response. Caller is responsible for freeing the memory.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @param info Pointer to a runtime_info structure. @see runtime_info
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_tasks_getall_object(response* result,
+ const char* URL,
+ runtime_info* info);
+
+/**
+ * Function for getting the stored display name for the collection.
+ * @param result A pointer to struct _response where the result is to stored.
+ * @see response. Caller is responsible for freeing the memory.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @param info Pointer to a runtime_info structure. @see runtime_info
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_get_displayname(response* result,
+ const char* URL,
+ runtime_info* info);
+
+/**
+ * Function to test wether a calendar resource is CalDAV enabled or not.
+ * @param URL Defines CalDAV resource. Receiver is responsible for
+ * freeing the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @param info Pointer to a runtime_info structure. @see runtime_info
+ * @result 0 (zero) means no CalDAV support, otherwise CalDAV support
+ * detechted.
+ */
+int caldav_enabled_resource(const char* URL, runtime_info* info);
+
+/**
+ * Function for getting free/busy information.
+ * @param result A pointer to struct _response where the result is to stored.
+ * @see response. Caller is responsible for freeing the memory.
+ * @param start time_t variable specifying start and end for range. Both
+ * are included in range.
+ * @param end time_t variable specifying start and end for range. Both
+ * are included in range.
+ * @param URL Defines CalDAV resource. Receiver is responsible for freeing
+ * the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
+ */
+CALDAV_RESPONSE caldav_get_freebusy(response *result,
+ time_t start,
+ time_t end,
+ const char* URL,
+ runtime_info* info);
+
+/**
+ * @deprecated Always returns an initialized empty caldav_error
+ * Function to call in case of errors.
+ * Caller provides a pointer to a local caldav_error structure.
+ * Caldav_get_error will initialize pointer if NULL.
+ * Caller is responsible for freeing returned memory.
+ * After the first call the internal error buffer is reset.
+ * @param lib_error A pointer to a struct _caldav_error. @see _caldav_error
+ * @return An initialized caldav_error pointer to memory where error
+ * messages can be found from the last call to the library.
+ */
+caldav_error* caldav_get_error(caldav_error* lib_error);
+
+/**
+ * Function for freeing memory for a previous initialization of a
+ * caldav_error. @see caldav_get_error()
+ * Caller provides a pointer to a local caldav_error structure.
+ * @param lib_error A pointer to a struct _caldav_error. @see _caldav_error
+ */
+void caldav_free_error(caldav_error* lib_error);
+
+/* Setting various options in library */
+
+/**
+ * @deprecated Does nothing
+ * Function which supports sending various options inside the library.
+ * @param curl_options A struct debug_curl. See debug_curl.
+ */
+void caldav_set_options(debug_curl curl_options);
+
+/**
+ * Function to call to get a list of supported CalDAV options for a server
+ * @param URL Defines CalDAV resource. Receiver is responsible for
+ * freeing the memory. [http://][username[:password]@]host[:port]/url-path.
+ * See (RFC1738).
+ * @param info Pointer to a runtime_info structure. @see runtime_info
+ * @result A list of available options or NULL in case of any error.
+ */
+char** caldav_get_server_options(const char* URL, runtime_info* info);
+
+/**
+ * Function for getting an initialized runtime_info structure
+ * @return runtime_info. @see runtime_info
+ */
+runtime_info* caldav_get_runtime_info();
+
+/**
+ * Function for freeing memory for a previous initialization of an info
+ * structure
+ * @param info Address to a pointer to a runtime_info structure. @see
+ * runtime_info
+ */
+void caldav_free_runtime_info(runtime_info** info);
+
+/**
+ * Function for getting an initialized response structure
+ * @return response. @see _response
+ */
+response* caldav_get_response();
+
+/**
+ * Function for freeing memory for a previous initialization of an response
+ * structure
+ * @param info Address to a pointer to a response structure. @see
+ * _response
+ */
+void caldav_free_response(response** info);
+
+#endif
diff --git a/src/delete-caldav-object.c b/src/delete-caldav-object.c
new file mode 100644
index 0000000..9a85168
--- /dev/null
+++ b/src/delete-caldav-object.c
@@ -0,0 +1,533 @@
+/* vim: set textwidth=80 tabstop=4: */
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "delete-caldav-object.h"
+#include "lock-caldav-object.h"
+#include <glib.h>
+#include <curl/curl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/**
+ * A static literal string containing the first part of the calendar query.
+ * The actual UID to use for the query is added at runtime.
+ */
+static char* search_head =
+"<?xml version=\"1.0\" encoding=\"utf-8\" ?>"
+"<C:calendar-query xmlns:D=\"DAV:\""
+" xmlns:C=\"urn:ietf:params:xml:ns:caldav\">"
+" <D:prop>"
+" <D:getetag/>"
+" <C:calendar-data/>"
+" </D:prop>"
+" <C:filter>"
+" <C:comp-filter name=\"VCALENDAR\">"
+" <C:comp-filter name=\"VEVENT\">"
+" <C:prop-filter name=\"UID\">";
+
+/**
+ * A static literal string containing the first part of the calendar query.
+ * The actual UID to use for the query is added at runtime.
+ */
+static char* search_tasks_head =
+"<?xml version=\"1.0\" encoding=\"utf-8\" ?>"
+"<C:calendar-query xmlns:D=\"DAV:\""
+" xmlns:C=\"urn:ietf:params:xml:ns:caldav\">"
+" <D:prop>"
+" <D:getetag/>"
+" <C:calendar-data/>"
+" </D:prop>"
+" <C:filter>"
+" <C:comp-filter name=\"VCALENDAR\">"
+" <C:comp-filter name=\"VTODO\">"
+" <C:prop-filter name=\"UID\">";
+
+/**
+ * A static literal string containing the last part of the calendar query
+ */
+static char* search_tail =
+"</C:prop-filter>"
+" </C:comp-filter>"
+" </C:comp-filter>"
+" </C:filter>"
+"</C:calendar-query>";
+
+/**
+ * Function for deleting an event.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_delete(caldav_settings* settings, caldav_error* error) {
+ CURL* curl;
+ CURLcode res = 0;
+ char error_buf[CURL_ERROR_SIZE];
+ struct config_data data;
+ struct MemoryStruct chunk;
+ struct MemoryStruct headers;
+ struct curl_slist *http_header = NULL;
+ gchar* search;
+ gchar* uid;
+ gboolean LOCKSUPPORT = FALSE;
+ gchar* lock_token = NULL;
+ gboolean result = FALSE;
+
+ chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
+ chunk.size = 0; /* no data at this point */
+ headers.memory = NULL;
+ headers.size = 0;
+
+ curl = get_curl(settings);
+ if (!curl) {
+ error->code = -1;
+ error->str = g_strdup("Could not initialize libcurl");
+ g_free(settings->file);
+ settings->file = NULL;
+ return TRUE;
+ }
+
+ http_header = curl_slist_append(http_header,
+ "Content-Type: application/xml; charset=\"utf-8\"");
+ http_header = curl_slist_append(http_header, "Depth: infinity");
+ http_header = curl_slist_append(http_header, "Expect:");
+ http_header = curl_slist_append(http_header, "Transfer-Encoding:");
+ http_header = curl_slist_append(http_header, "Connection: close");
+ data.trace_ascii = settings->trace_ascii;
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
+ /* we pass our 'chunk' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
+ /* we pass our 'headers' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
+ curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
+ if (settings->debug) {
+ curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
+ curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
+ }
+ gchar* file = g_strdup(settings->file);
+ if ((uid = get_response_header("uid", file, FALSE)) == NULL) {
+ g_free(file);
+ error->code = 1;
+ error->str = g_strdup("Error: Missing required UID for object");
+ return TRUE;
+ }
+ g_free(file);
+ /*
+ * ICalendar server does not support collation
+ * <C:text-match collation=\"i;ascii-casemap\">%s</C:text-match>
+ */
+ search = g_strdup_printf(
+ "%s\r\n<C:text-match>%s</C:text-match>\r\n%s",
+ search_head, uid, search_tail);
+ g_free(uid);
+ /* enable uploading */
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, search);
+ curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, strlen(search));
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "REPORT");
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ res = curl_easy_perform(curl);
+ g_free(search);
+ curl_slist_free_all(http_header);
+ http_header = NULL;
+ if (res != 0) {
+ error->code = -1;
+ error->str = g_strdup_printf("%s", error_buf);
+ g_free(settings->file);
+ settings->file = NULL;
+ result = TRUE;
+ }
+ else {
+ long code;
+ res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
+ if (code != 207) {
+ error->code = code;
+ error->str = g_strdup(chunk.memory);
+ result = TRUE;
+ }
+ else {
+ /* enable uploading */
+ gchar* url = NULL;
+ gchar* etag = NULL;
+ url = get_url(chunk.memory);
+ if (url) {
+ etag = get_etag(chunk.memory);
+ if (etag) {
+ gchar* host = get_host(settings->url);
+ if (host) {
+ file = g_strdup(url);
+ g_free(url);
+ url = g_strdup_printf("%s%s", host, file);
+ g_free(file);
+ g_free(host);
+ }
+ else {
+ g_free(etag);
+ g_free(url);
+ url = NULL;
+ }
+ }
+ else {
+ g_free(url);
+ url = NULL;
+ }
+ }
+ if (url) {
+ int lock = 0;
+ caldav_error lock_error;
+
+ file = g_strdup(etag);
+ g_free(etag);
+ etag = g_strdup_printf("If-Match: %s", file);
+ g_free(file);
+ http_header = curl_slist_append(http_header, etag);
+ g_free(etag);
+ http_header = curl_slist_append(http_header,
+ "Content-Type: text/calendar; charset=\"utf-8\"");
+ http_header = curl_slist_append(http_header, "Expect:");
+ http_header = curl_slist_append(
+ http_header, "Transfer-Encoding:");
+ http_header = curl_slist_append(http_header, "Connection: close");
+ if (settings->use_locking)
+ LOCKSUPPORT = caldav_lock_support(settings, &lock_error);
+ else
+ LOCKSUPPORT = FALSE;
+ if (LOCKSUPPORT) {
+ lock_token = caldav_lock_object(url, settings, &lock_error);
+ if (lock_token) {
+ http_header = curl_slist_append(
+ http_header, g_strdup_printf(
+ "If: (%s)", lock_token));
+ }
+ /*
+ * If error code is 423 (Resource is LOCKED) bail out
+ */
+ else if (lock_error.code == 423) {
+ lock = -1;
+ }
+ /*
+ * If error code is 501 (Not implemented) we continue
+ * hoping for the best.
+ */
+ else if (lock_error.code == 501) {
+ lock_token = g_strdup("");
+ }
+ else {
+ lock = -1;
+ }
+ }
+ if (! LOCKSUPPORT || (LOCKSUPPORT && lock_token && lock_error.code != 423)) {
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
+ curl_easy_setopt(curl, CURLOPT_URL, rebuild_url(settings, url));
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, NULL);
+ curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, 0);
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "DELETE");
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ res = curl_easy_perform(curl);
+ if (LOCKSUPPORT && lock_token) {
+ caldav_unlock_object(
+ lock_token, url, settings, &lock_error);
+ }
+ }
+ g_free(url);
+ g_free(lock_token);
+ if (res != 0 || lock < 0) {
+ /* Is this a lock_error don't change error*/
+ if (lock == 0 || lock_error.code == 423) {
+ error->code = code;
+ error->str = g_strdup(chunk.memory);
+ }
+ else {
+ error->code = lock_error.code;
+ error->str = g_strdup(lock_error.str);
+ }
+ result = TRUE;
+ g_free(settings->file);
+ settings->file = NULL;
+ }
+ else {
+ long code;
+ res = curl_easy_getinfo(
+ curl, CURLINFO_RESPONSE_CODE, &code);
+ if (code != 204) {
+ error->code = code;
+ error->str = g_strdup(chunk.memory);
+ result = TRUE;
+ }
+ }
+ curl_slist_free_all(http_header);
+ }
+ else {
+ error->code = code;
+ if (chunk.memory)
+ error->str = g_strdup(chunk.memory);
+ else
+ error->str = g_strdup("No object found");
+ result = TRUE;
+ }
+ }
+ }
+ if (chunk.memory)
+ free(chunk.memory);
+ if (headers.memory)
+ free(headers.memory);
+ curl_easy_cleanup(curl);
+ return result;
+}
+
+/**
+ * Function for deleting a task.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_tasks_delete(caldav_settings* settings, caldav_error* error) {
+ CURL* curl;
+ CURLcode res = 0;
+ char error_buf[CURL_ERROR_SIZE];
+ struct config_data data;
+ struct MemoryStruct chunk;
+ struct MemoryStruct headers;
+ struct curl_slist *http_header = NULL;
+ gchar* search;
+ gchar* uid;
+ gboolean LOCKSUPPORT = FALSE;
+ gchar* lock_token = NULL;
+ gboolean result = FALSE;
+
+ chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
+ chunk.size = 0; /* no data at this point */
+ headers.memory = NULL;
+ headers.size = 0;
+
+ curl = get_curl(settings);
+ if (!curl) {
+ error->code = -1;
+ error->str = g_strdup("Could not initialize libcurl");
+ g_free(settings->file);
+ settings->file = NULL;
+ return TRUE;
+ }
+
+ http_header = curl_slist_append(http_header,
+ "Content-Type: application/xml; charset=\"utf-8\"");
+ http_header = curl_slist_append(http_header, "Depth: infinity");
+ http_header = curl_slist_append(http_header, "Expect:");
+ http_header = curl_slist_append(http_header, "Transfer-Encoding:");
+ http_header = curl_slist_append(http_header, "Connection: close");
+ data.trace_ascii = settings->trace_ascii;
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
+ /* we pass our 'chunk' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
+ /* we pass our 'headers' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
+ curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
+ if (settings->debug) {
+ curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
+ curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
+ }
+ gchar* file = g_strdup(settings->file);
+ if ((uid = get_response_header("uid", file, FALSE)) == NULL) {
+ g_free(file);
+ error->code = 1;
+ error->str = g_strdup("Error: Missing required UID for object");
+ return TRUE;
+ }
+ g_free(file);
+ /*
+ * ICalendar server does not support collation
+ * <C:text-match collation=\"i;ascii-casemap\">%s</C:text-match>
+ */
+ search = g_strdup_printf(
+ "%s\r\n<C:text-match>%s</C:text-match>\r\n%s",
+ search_tasks_head, uid, search_tail);
+ g_free(uid);
+ /* enable uploading */
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, search);
+ curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, strlen(search));
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "REPORT");
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ res = curl_easy_perform(curl);
+ g_free(search);
+ curl_slist_free_all(http_header);
+ http_header = NULL;
+ if (res != 0) {
+ error->code = -1;
+ error->str = g_strdup_printf("%s", error_buf);
+ g_free(settings->file);
+ settings->file = NULL;
+ result = TRUE;
+ }
+ else {
+ long code;
+ res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
+ if (code != 207) {
+ error->code = code;
+ error->str = g_strdup(chunk.memory);
+ result = TRUE;
+ }
+ else {
+ /* enable uploading */
+ gchar* url = NULL;
+ gchar* etag = NULL;
+ url = get_url(chunk.memory);
+ if (url) {
+ etag = get_etag(chunk.memory);
+ if (etag) {
+ gchar* host = get_host(settings->url);
+ if (host) {
+ file = g_strdup(url);
+ g_free(url);
+ url = g_strdup_printf("%s%s", host, file);
+ g_free(file);
+ g_free(host);
+ }
+ else {
+ g_free(etag);
+ g_free(url);
+ url = NULL;
+ }
+ }
+ else {
+ g_free(url);
+ url = NULL;
+ }
+ }
+ if (url) {
+ int lock = 0;
+ caldav_error lock_error;
+
+ file = g_strdup(etag);
+ g_free(etag);
+ etag = g_strdup_printf("If-Match: %s", file);
+ g_free(file);
+ http_header = curl_slist_append(http_header, etag);
+ g_free(etag);
+ http_header = curl_slist_append(http_header,
+ "Content-Type: text/calendar; charset=\"utf-8\"");
+ http_header = curl_slist_append(http_header, "Expect:");
+ http_header = curl_slist_append(
+ http_header, "Transfer-Encoding:");
+ http_header = curl_slist_append(http_header, "Connection: close");
+ if (settings->use_locking)
+ LOCKSUPPORT = caldav_lock_support(settings, &lock_error);
+ else
+ LOCKSUPPORT = FALSE;
+ if (LOCKSUPPORT) {
+ lock_token = caldav_lock_object(url, settings, &lock_error);
+ if (lock_token) {
+ http_header = curl_slist_append(
+ http_header, g_strdup_printf(
+ "If: (%s)", lock_token));
+ }
+ /*
+ * If error code is 423 (Resource is LOCKED) bail out
+ */
+ else if (lock_error.code == 423) {
+ lock = -1;
+ }
+ /*
+ * If error code is 501 (Not implemented) we continue
+ * hoping for the best.
+ */
+ else if (lock_error.code == 501) {
+ lock_token = g_strdup("");
+ }
+ else {
+ lock = -1;
+ }
+ }
+ if (! LOCKSUPPORT || (LOCKSUPPORT && lock_token && lock_error.code != 423)) {
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
+ curl_easy_setopt(curl, CURLOPT_URL, rebuild_url(settings, url));
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, NULL);
+ curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, 0);
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "DELETE");
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ res = curl_easy_perform(curl);
+ if (LOCKSUPPORT && lock_token) {
+ caldav_unlock_object(
+ lock_token, url, settings, &lock_error);
+ }
+ }
+ g_free(url);
+ g_free(lock_token);
+ if (res != 0 || lock < 0) {
+ /* Is this a lock_error don't change error*/
+ if (lock == 0 || lock_error.code == 423) {
+ error->code = code;
+ error->str = g_strdup(chunk.memory);
+ }
+ else {
+ error->code = lock_error.code;
+ error->str = g_strdup(lock_error.str);
+ }
+ result = TRUE;
+ g_free(settings->file);
+ settings->file = NULL;
+ }
+ else {
+ long code;
+ res = curl_easy_getinfo(
+ curl, CURLINFO_RESPONSE_CODE, &code);
+ if (code != 204) {
+ error->code = code;
+ error->str = g_strdup(chunk.memory);
+ result = TRUE;
+ }
+ }
+ curl_slist_free_all(http_header);
+ }
+ else {
+ error->code = code;
+ if (chunk.memory)
+ error->str = g_strdup(chunk.memory);
+ else
+ error->str = g_strdup("No object found");
+ result = TRUE;
+ }
+ }
+ }
+ if (chunk.memory)
+ free(chunk.memory);
+ if (headers.memory)
+ free(headers.memory);
+ curl_easy_cleanup(curl);
+ return result;
+}
diff --git a/src/delete-caldav-object.h b/src/delete-caldav-object.h
new file mode 100644
index 0000000..cddf711
--- /dev/null
+++ b/src/delete-caldav-object.h
@@ -0,0 +1,43 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __DELETE_CALDAV_OBJECT_H__
+#define __DELETE_CALDAV_OBJECT_H__
+
+#include "caldav-utils.h"
+#include "caldav.h"
+
+/**
+ * Function for deleting an event.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_delete(caldav_settings* settings, caldav_error* error);
+
+/**
+ * Function for deleting a task.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_tasks_delete(caldav_settings* settings, caldav_error* error);
+
+#endif
+
diff --git a/src/get-caldav-report.c b/src/get-caldav-report.c
new file mode 100644
index 0000000..d916259
--- /dev/null
+++ b/src/get-caldav-report.c
@@ -0,0 +1,472 @@
+/* vim: set textwidth=80 tabstop=4 smarttab: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "get-caldav-report.h"
+#include <glib.h>
+#include <curl/curl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/**
+ * A static literal string containing the calendar query for fetching
+ * all events from collection.
+ */
+static const char* getall_request =
+"<?xml version=\"1.0\" encoding=\"utf-8\" ?>"
+"<C:calendar-query xmlns:D=\"DAV:\""
+" xmlns:C=\"urn:ietf:params:xml:ns:caldav\">"
+" <D:prop>"
+" <D:getetag/>"
+" <C:calendar-data/>"
+" </D:prop>"
+" <C:filter>"
+" <C:comp-filter name=\"VCALENDAR\">"
+" <C:comp-filter name=\"VEVENT\"/>"
+" </C:comp-filter>"
+" </C:filter>"
+"</C:calendar-query>\r\n";
+
+/**
+ * A static literal string containing the first part of the calendar query.
+ * The actual VEVENT to search for is added at runtime.
+ */
+static const char* getrange_request_head =
+"<?xml version=\"1.0\" encoding=\"utf-8\" ?>"
+/*"<C:calendar-query xmlns:D=\"DAV:\""
+" xmlns:C=\"urn:ietf:params:xml:ns:caldav\">"
+" <D:prop>"*/
+"<C:calendar-query xmlns:C=\"urn:ietf:params:xml:ns:caldav\">"
+" <D:prop xmlns:D=\"DAV:\">"
+/*" <D:getetag/>"*/
+" <C:calendar-data/>"
+" </D:prop>"
+" <C:filter>"
+" <C:comp-filter name=\"VCALENDAR\">"
+" <C:comp-filter name=\"VEVENT\">";
+
+/**
+ * A static literal string containing the last part of the calendar query
+ */
+static const char* getrange_request_foot =
+" </C:comp-filter>"
+" </C:comp-filter>"
+" </C:filter>"
+"</C:calendar-query>\r\n";
+
+/**
+ * A static literal string containing the calendar query for fetching
+ * all tasks from collection.
+ */
+static const char* getall_tasks_request =
+"<?xml version=\"1.0\" encoding=\"utf-8\" ?>"
+"<C:calendar-query xmlns:D=\"DAV:\""
+" xmlns:C=\"urn:ietf:params:xml:ns:caldav\">"
+" <D:prop>"
+" <D:getetag/>"
+" <C:calendar-data/>"
+" </D:prop>"
+" <C:filter>"
+" <C:comp-filter name=\"VCALENDAR\">"
+" <C:comp-filter name=\"VTODO\"/>"
+" </C:comp-filter>"
+" </C:filter>"
+"</C:calendar-query>\r\n";
+
+/**
+ * A static literal string containing the first part of the calendar query.
+ * The actual VTODO to search for is added at runtime.
+ */
+static const char* getrange_tasks_request_head =
+"<?xml version=\"1.0\" encoding=\"utf-8\" ?>"
+/*"<C:calendar-query xmlns:D=\"DAV:\""
+" xmlns:C=\"urn:ietf:params:xml:ns:caldav\">"
+" <D:prop>"*/
+"<C:calendar-query xmlns:C=\"urn:ietf:params:xml:ns:caldav\">"
+" <D:prop xmlns:D=\"DAV:\">"
+/*" <D:getetag/>"*/
+" <C:calendar-data/>"
+" </D:prop>"
+" <C:filter>"
+" <C:comp-filter name=\"VCALENDAR\">"
+" <C:comp-filter name=\"VTODO\">";
+
+/**
+ * Function for getting all events from collection.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_getall(caldav_settings* settings, caldav_error* error) {
+ CURL* curl;
+ CURLcode res = 0;
+ char error_buf[CURL_ERROR_SIZE];
+ struct config_data data;
+ struct MemoryStruct chunk;
+ struct MemoryStruct headers;
+ struct curl_slist *http_header = NULL;
+ gboolean result = FALSE;
+
+ chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
+ chunk.size = 0; /* no data at this point */
+ headers.memory = NULL;
+ headers.size = 0;
+
+ curl = get_curl(settings);
+ if (!curl) {
+ error->code = -1;
+ error->str = g_strdup("Could not initialize libcurl");
+ g_free(settings->file);
+ settings->file = NULL;
+ return TRUE;
+ }
+
+ http_header = curl_slist_append(http_header,
+ "Content-Type: application/xml; charset=\"utf-8\"");
+ http_header = curl_slist_append(http_header, "Depth: 1");
+ http_header = curl_slist_append(http_header, "Expect:");
+ http_header = curl_slist_append(http_header, "Transfer-Encoding:");
+ http_header = curl_slist_append(http_header, "Connection: close");
+ data.trace_ascii = settings->trace_ascii;
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
+ /* we pass our 'chunk' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
+ /* we pass our 'headers' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
+ /* enable uploading */
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, getall_request);
+ curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, strlen(getall_request));
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
+ curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
+ if (settings->debug) {
+ curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
+ curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
+ }
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "REPORT");
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ res = curl_easy_perform(curl);
+ if (res != 0) {
+ error->code = -1;
+ error->str = g_strdup_printf("%s", error_buf);
+ g_free(settings->file);
+ settings->file = NULL;
+ result = TRUE;
+ }
+ else {
+ long code;
+ res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
+ if (code != 207) {
+ error->code = code;
+ error->str = g_strdup(headers.memory);
+ result = TRUE;
+ }
+ else {
+ gchar* report;
+ report = parse_caldav_report(
+ chunk.memory, "calendar-data", "VEVENT");
+ settings->file = g_strdup(report);
+ g_free(report);
+ }
+ }
+ if (chunk.memory)
+ free(chunk.memory);
+ if (headers.memory)
+ free(headers.memory);
+ curl_slist_free_all(http_header);
+ curl_easy_cleanup(curl);
+ return result;
+}
+
+/**
+ * Function for getting all events within a time range from collection.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_getrange(caldav_settings* settings, caldav_error* error) {
+ CURL* curl;
+ CURLcode res = 0;
+ char error_buf[CURL_ERROR_SIZE + 1];
+ struct config_data data;
+ struct MemoryStruct chunk;
+ struct MemoryStruct headers;
+ struct curl_slist *http_header = NULL;
+ gboolean result = FALSE;
+ gchar* request = NULL;
+
+ chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
+ chunk.size = 0; /* no data at this point */
+ headers.memory = NULL;
+ headers.size = 0;
+
+ curl = get_curl(settings);
+ if (!curl) {
+ error->code = -1;
+ error->str = g_strdup("Could not initialize libcurl");
+ g_free(settings->file);
+ settings->file = NULL;
+ return TRUE;
+ }
+
+ http_header = curl_slist_append(http_header,
+ "Content-Type: application/xml; charset=\"utf-8\"");
+ http_header = curl_slist_append(http_header, "Depth: 1");
+ http_header = curl_slist_append(http_header, "Expect:");
+ http_header = curl_slist_append(http_header, "Transfer-Encoding:");
+ http_header = curl_slist_append(http_header, "Connection: close");
+ data.trace_ascii = settings->trace_ascii;
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
+ /* we pass our 'chunk' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
+ /* we pass our 'headers' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
+ curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
+ if (settings->debug) {
+ curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
+ curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
+ }
+ request = g_strdup_printf(
+ "%s\r\n<C:time-range start=\"%s\"\r\n end=\"%s\"/>\r\n%s",
+ getrange_request_head, get_caldav_datetime(&settings->start),
+ get_caldav_datetime(&settings->end), getrange_request_foot);
+ /* enable uploading */
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, request);
+ curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, strlen(request));
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "REPORT");
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ res = curl_easy_perform(curl);
+ if (res != 0) {
+ error->code = -1;
+ error->str = g_strdup_printf("%s", error_buf);
+ g_free(settings->file);
+ settings->file = NULL;
+ result = TRUE;
+ }
+ else {
+ gchar* report;
+ report = parse_caldav_report(chunk.memory, "calendar-data", "VEVENT");
+ settings->file = g_strdup(report);
+ g_free(report);
+ }
+ g_free(request);
+ if (chunk.memory)
+ free(chunk.memory);
+ if (headers.memory)
+ free(headers.memory);
+ curl_slist_free_all(http_header);
+ curl_easy_cleanup(curl);
+ return result;
+}
+
+/**
+ * Function for getting all tasks from collection.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_tasks_getall(caldav_settings* settings, caldav_error* error) {
+ CURL* curl;
+ CURLcode res = 0;
+ char error_buf[CURL_ERROR_SIZE];
+ struct config_data data;
+ struct MemoryStruct chunk;
+ struct MemoryStruct headers;
+ struct curl_slist *http_header = NULL;
+ gboolean result = FALSE;
+
+ chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
+ chunk.size = 0; /* no data at this point */
+ headers.memory = NULL;
+ headers.size = 0;
+
+ curl = get_curl(settings);
+ if (!curl) {
+ error->code = -1;
+ error->str = g_strdup("Could not initialize libcurl");
+ g_free(settings->file);
+ settings->file = NULL;
+ return TRUE;
+ }
+
+ http_header = curl_slist_append(http_header,
+ "Content-Type: application/xml; charset=\"utf-8\"");
+ http_header = curl_slist_append(http_header, "Depth: 1");
+ http_header = curl_slist_append(http_header, "Expect:");
+ http_header = curl_slist_append(http_header, "Transfer-Encoding:");
+ http_header = curl_slist_append(http_header, "Connection: close");
+ data.trace_ascii = settings->trace_ascii;
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
+ /* we pass our 'chunk' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
+ /* we pass our 'headers' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
+ /* enable uploading */
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, getall_tasks_request);
+ curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, strlen(getall_tasks_request));
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
+ curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
+ if (settings->debug) {
+ curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
+ curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
+ }
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "REPORT");
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ res = curl_easy_perform(curl);
+ if (res != 0) {
+ error->code = -1;
+ error->str = g_strdup_printf("%s", error_buf);
+ g_free(settings->file);
+ settings->file = NULL;
+ result = TRUE;
+ }
+ else {
+ long code;
+ res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
+ if (code != 207) {
+ error->code = code;
+ error->str = g_strdup(headers.memory);
+ result = TRUE;
+ }
+ else {
+ gchar* report;
+ report = parse_caldav_report(
+ chunk.memory, "calendar-data", "VTODO");
+ settings->file = g_strdup(report);
+ g_free(report);
+ }
+ }
+ if (chunk.memory)
+ free(chunk.memory);
+ if (headers.memory)
+ free(headers.memory);
+ curl_slist_free_all(http_header);
+ curl_easy_cleanup(curl);
+ return result;
+}
+
+/**
+ * Function for getting all events within a time range from collection.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_tasks_getrange(caldav_settings* settings, caldav_error* error) {
+ CURL* curl;
+ CURLcode res = 0;
+ char error_buf[CURL_ERROR_SIZE + 1];
+ struct config_data data;
+ struct MemoryStruct chunk;
+ struct MemoryStruct headers;
+ struct curl_slist *http_header = NULL;
+ gboolean result = FALSE;
+ gchar* request = NULL;
+
+ chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
+ chunk.size = 0; /* no data at this point */
+ headers.memory = NULL;
+ headers.size = 0;
+
+ curl = get_curl(settings);
+ if (!curl) {
+ error->code = -1;
+ error->str = g_strdup("Could not initialize libcurl");
+ g_free(settings->file);
+ settings->file = NULL;
+ return TRUE;
+ }
+
+ http_header = curl_slist_append(http_header,
+ "Content-Type: application/xml; charset=\"utf-8\"");
+ http_header = curl_slist_append(http_header, "Depth: 1");
+ http_header = curl_slist_append(http_header, "Expect:");
+ http_header = curl_slist_append(http_header, "Transfer-Encoding:");
+ http_header = curl_slist_append(http_header, "Connection: close");
+ data.trace_ascii = settings->trace_ascii;
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
+ /* we pass our 'chunk' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
+ /* we pass our 'headers' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
+ curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
+ if (settings->debug) {
+ curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
+ curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
+ }
+ request = g_strdup_printf(
+ "%s\r\n<C:time-range start=\"%s\"\r\n end=\"%s\"/>\r\n%s",
+ getrange_tasks_request_head, get_caldav_datetime(&settings->start),
+ get_caldav_datetime(&settings->end), getrange_request_foot);
+ /* enable uploading */
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, request);
+ curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, strlen(request));
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "REPORT");
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ res = curl_easy_perform(curl);
+ if (res != 0) {
+ error->code = -1;
+ error->str = g_strdup_printf("%s", error_buf);
+ g_free(settings->file);
+ settings->file = NULL;
+ result = TRUE;
+ }
+ else {
+ gchar* report;
+ report = parse_caldav_report(chunk.memory, "calendar-data", "VTODO");
+ settings->file = g_strdup(report);
+ g_free(report);
+ }
+ g_free(request);
+ if (chunk.memory)
+ free(chunk.memory);
+ if (headers.memory)
+ free(headers.memory);
+ curl_slist_free_all(http_header);
+ curl_easy_cleanup(curl);
+ return result;
+}
diff --git a/src/get-caldav-report.h b/src/get-caldav-report.h
new file mode 100644
index 0000000..f769685
--- /dev/null
+++ b/src/get-caldav-report.h
@@ -0,0 +1,59 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __GET_CALDAV_REPORT_H__
+#define __GET_CALDAV_REPORT_H__
+
+#include "caldav-utils.h"
+#include "caldav.h"
+#include <glib.h>
+
+/**
+ * Function for getting all events from collection.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_getall(caldav_settings* settings, caldav_error* error);
+
+/**
+ * Function for getting all events within a time range from collection.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_getrange(caldav_settings* settings, caldav_error* error);
+
+/**
+ * Function for getting all tasks from collection.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_tasks_getall(caldav_settings* settings, caldav_error* error);
+
+/**
+ * Function for getting all tasks within a time range from collection.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_tasks_getrange(caldav_settings* settings, caldav_error* error);
+
+#endif
diff --git a/src/get-display-name.c b/src/get-display-name.c
new file mode 100644
index 0000000..8fc0ff8
--- /dev/null
+++ b/src/get-display-name.c
@@ -0,0 +1,139 @@
+/* vim: set textwidth=80 tabstop=4 smarttab: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "get-caldav-report.h"
+#include <glib.h>
+#include <curl/curl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/**
+ * A static literal string containing the calendar query for fetching
+ * the stored display name for the collection.
+ */
+static const char* getname_request =
+"<?xml version=\"1.0\" encoding=\"utf-8\" ?>"
+"<D:propfind xmlns:D=\"DAV:\""
+" xmlns:C=\"urn:ietf:params:xml:ns:caldav\">"
+" <D:prop>"
+" <D:displayname/>"
+" </D:prop>"
+"</D:propfind>\r\n";
+
+/**
+ * Function for getting the display name from collection.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_getname(caldav_settings* settings, caldav_error* error) {
+ CURL* curl;
+ CURLcode res = 0;
+ char error_buf[CURL_ERROR_SIZE];
+ struct config_data data;
+ struct MemoryStruct chunk;
+ struct MemoryStruct headers;
+ struct curl_slist *http_header = NULL;
+ gboolean result = FALSE;
+
+ chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
+ chunk.size = 0; /* no data at this point */
+ headers.memory = NULL;
+ headers.size = 0;
+
+ curl = get_curl(settings);
+ if (!curl) {
+ error->code = -1;
+ error->str = g_strdup("Could not initialize libcurl");
+ g_free(settings->file);
+ settings->file = NULL;
+ return TRUE;
+ }
+
+ http_header = curl_slist_append(http_header,
+ "Content-Type: application/xml; charset=\"utf-8\"");
+ http_header = curl_slist_append(http_header, "Depth: 0");
+ http_header = curl_slist_append(http_header, "Expect:");
+ http_header = curl_slist_append(http_header, "Transfer-Encoding:");
+ http_header = curl_slist_append(http_header, "Connection: close");
+ data.trace_ascii = settings->trace_ascii;
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
+ /* we pass our 'chunk' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
+ /* we pass our 'headers' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
+ /* enable uploading */
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, getname_request);
+ curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, strlen(getname_request));
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
+ curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
+ if (settings->debug) {
+ curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
+ curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
+ }
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "PROPFIND");
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ res = curl_easy_perform(curl);
+ if (res != 0) {
+ error->code = -1;
+ error->str = g_strdup_printf("%s", error_buf);
+ g_free(settings->file);
+ settings->file = NULL;
+ result = TRUE;
+ }
+ else {
+ long code;
+ res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
+ if (code != 207) {
+ error->code = code;
+ error->str = g_strdup(headers.memory);
+ result = TRUE;
+ }
+ else {
+ gchar* displayname;
+ displayname = get_tag("displayname", chunk.memory);
+ /* Maybe namespace prefixed */
+ if (!displayname) {
+ displayname = get_tag("D:displayname", chunk.memory);
+ }
+ settings->file = (displayname) ?
+ g_strdup(displayname) : g_strdup("");
+ g_free(displayname);
+ }
+ }
+ if (chunk.memory)
+ free(chunk.memory);
+ if (headers.memory)
+ free(headers.memory);
+ curl_slist_free_all(http_header);
+ curl_easy_cleanup(curl);
+ return result;
+}
+
diff --git a/src/get-display-name.h b/src/get-display-name.h
new file mode 100644
index 0000000..5c80272
--- /dev/null
+++ b/src/get-display-name.h
@@ -0,0 +1,34 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __GET_DISPLAY_NAME_H__
+#define __GET_DISPLAY_NAME_H__
+
+#include "caldav-utils.h"
+
+/**
+ * Function for getting the display name from collection.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_getname(caldav_settings* settings, caldav_error* error);
+
+#endif
+
diff --git a/src/get-freebusy-report.c b/src/get-freebusy-report.c
new file mode 100644
index 0000000..f75ab92
--- /dev/null
+++ b/src/get-freebusy-report.c
@@ -0,0 +1,140 @@
+/* vim: set textwidth=80 tabstop=4 smarttab: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "get-freebusy-report.h"
+#include <glib.h>
+#include <curl/curl.h>
+#include <string.h>
+
+/**
+ * A static literal string containing the first part of the calendar query.
+ * The actual VEVENT to search for is added at runtime.
+ */
+static const char* getrange_request_head =
+"<?xml version=\"1.0\" encoding=\"utf-8\" ?>"
+"<C:free-busy-query xmlns:D=\"DAV:\""
+" xmlns:C=\"urn:ietf:params:xml:ns:caldav\">";
+
+/**
+ * A static literal string containing the last part of the calendar query
+ */
+static const char* getrange_request_foot =
+"</C:free-busy-query>\r\n";
+
+/**
+ * Function for getting freebusy within a time range from collection.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_freebusy(caldav_settings* settings, caldav_error* error) {
+ CURL* curl;
+ CURLcode res = 0;
+ char error_buf[CURL_ERROR_SIZE + 1];
+ struct config_data data;
+ struct MemoryStruct chunk;
+ struct MemoryStruct headers;
+ struct curl_slist *http_header = NULL;
+ gboolean result = FALSE;
+ gchar* request = NULL;
+
+ chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
+ chunk.size = 0; /* no data at this point */
+ headers.memory = NULL;
+ headers.size = 0;
+
+ curl = get_curl(settings);
+ if (!curl) {
+ error->code = -1;
+ error->str = g_strdup("Could not initialize libcurl");
+ g_free(settings->file);
+ settings->file = NULL;
+ return TRUE;
+ }
+
+ http_header = curl_slist_append(http_header,
+ "Content-Type: application/xml; charset=\"utf-8\"");
+ http_header = curl_slist_append(http_header, "Depth: 1");
+ http_header = curl_slist_append(http_header, "Expect:");
+ http_header = curl_slist_append(http_header, "Transfer-Encoding:");
+ http_header = curl_slist_append(http_header, "Connection: close");
+ data.trace_ascii = settings->trace_ascii;
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
+ /* we pass our 'chunk' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
+ /* we pass our 'headers' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
+ curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
+ if (settings->debug) {
+ curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
+ curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
+ }
+ request = g_strdup_printf(
+ "%s\r\n<C:time-range start=\"%s\"\r\n end=\"%s\"/>\r\n%s",
+ getrange_request_head, get_caldav_datetime(&settings->start),
+ get_caldav_datetime(&settings->end), getrange_request_foot);
+ /* enable uploading */
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, request);
+ curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, strlen(request));
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "REPORT");
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ res = curl_easy_perform(curl);
+ if (res != 0) {
+ error->code = -1;
+ error->str = g_strdup_printf("%s", error_buf);
+ g_free(settings->file);
+ settings->file = NULL;
+ result = TRUE;
+ }
+ else {
+ long code;
+ res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
+ if (code != 200) {
+ error->code = code;
+ error->str = g_strdup(headers.memory);
+ result = TRUE;
+ }
+ else {
+ /*gchar* report;
+ report = parse_caldav_report(chunk.memory, "calendar-data", "VFREEBUSY");
+ settings->file = g_strdup(report);*/
+ settings->file = g_strdup(chunk.memory);
+ /*g_free(report);*/
+ }
+ }
+ g_free(request);
+ if (chunk.memory)
+ free(chunk.memory);
+ if (headers.memory)
+ free(headers.memory);
+ curl_slist_free_all(http_header);
+ curl_easy_cleanup(curl);
+ return result;
+}
diff --git a/src/get-freebusy-report.h b/src/get-freebusy-report.h
new file mode 100644
index 0000000..6c52c51
--- /dev/null
+++ b/src/get-freebusy-report.h
@@ -0,0 +1,35 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __GET_FREEBUSY_REPORT_H__
+#define __GET_FREEBUSY_REPORT_H__
+
+#include "caldav-utils.h"
+#include "caldav.h"
+#include <glib.h>
+
+/**
+ * Function for getting freebusy within a time range from collection.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_freebusy(caldav_settings* settings, caldav_error* error);
+
+#endif
diff --git a/src/lock-caldav-object.c b/src/lock-caldav-object.c
new file mode 100644
index 0000000..1ddf926
--- /dev/null
+++ b/src/lock-caldav-object.c
@@ -0,0 +1,292 @@
+/* vim: set textwidth=80 tabstop=4: */
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "lock-caldav-object.h"
+#include "options-caldav-server.h"
+#include <glib.h>
+#include <curl/curl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/**
+ * A static literal string containing the lock query.
+ */
+static char* lock_query =
+"<?xml version=\"1.0\" encoding=\"utf-8\" ?>"
+"<D:lockinfo xmlns:D=\"DAV:\">"
+" <D:lockscope><D:exclusive/></D:lockscope>"
+" <D:locktype><D:write/></D:locktype>"
+"</D:lockinfo>";
+
+/**
+ * Function which requests a lock on a calendar resource
+ * @param URI The resource to request lock on.
+ * @param settings @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return The Lock-Token or NULL in case of error
+ */
+gchar* caldav_lock_object(
+ gchar* URI, caldav_settings* settings, caldav_error* error) {
+ CURL* curl;
+ CURLcode res = 0;
+ char error_buf[CURL_ERROR_SIZE];
+ struct config_data data;
+ struct MemoryStruct chunk;
+ struct MemoryStruct headers;
+ struct curl_slist *http_header = NULL;
+ gchar* lock_token = NULL;
+ gchar* url;
+
+ if (! caldav_lock_support(settings, error))
+ return lock_token;
+ chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
+ chunk.size = 0; /* no data at this point */
+ headers.memory = NULL;
+ headers.size = 0;
+
+ curl = get_curl(settings);
+ if (!curl) {
+ error->code = -1;
+ error->str = g_strdup("Could not initialize libcurl");
+ g_free(settings->file);
+ settings->file = NULL;
+ return lock_token;
+ }
+
+ http_header = curl_slist_append(http_header,
+ "Content-Type: application/xml; charset=\"utf-8\"");
+ http_header = curl_slist_append(http_header, "Timeout: Second-300");
+ http_header = curl_slist_append(http_header, "Expect:");
+ http_header = curl_slist_append(http_header, "Transfer-Encoding:");
+ data.trace_ascii = settings->trace_ascii;
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
+ /* we pass our 'chunk' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
+ /* we pass our 'headers' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
+ curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
+ if (settings->debug) {
+ curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
+ curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
+ }
+ if (settings->usehttps) {
+ url = g_strdup_printf("https://%s", URI);
+ } else {
+ url = g_strdup_printf("http://%s", URI);
+ }
+ curl_easy_setopt(curl, CURLOPT_URL, url);
+ g_free(url);
+ /* enable uploading */
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, lock_query);
+ curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, strlen(lock_query));
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "LOCK");
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ res = curl_easy_perform(curl);
+ curl_slist_free_all(http_header);
+ if (res != 0) {
+ error->code = -1;
+ error->str = g_strdup_printf("%s", error_buf);
+ g_free(settings->file);
+ settings->file = NULL;
+ }
+ else {
+ long code;
+ res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
+ if (code != 200) {
+ gchar* status = get_tag("status", chunk.memory);
+ if (status && strstr(status, "423") != NULL) {
+ error->code = 423;
+ error->str = g_strdup(status);
+ }
+ else {
+ error->code = code;
+ error->str = g_strdup(chunk.memory);
+ }
+ g_free(status);
+ }
+ else {
+ lock_token = get_response_header(
+ "Lock-Token", headers.memory, FALSE);
+ }
+ }
+ if (chunk.memory)
+ free(chunk.memory);
+ if (headers.memory)
+ free(headers.memory);
+ curl_easy_cleanup(curl);
+ return lock_token;
+}
+
+/**
+ * Function which requests to have a lock removed from a calendar resource
+ * @param lock_token A privious aquired Lock-Token
+ * @param URI The resource to request unlock on.
+ * @param settings @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return False in case the lock could not be removed. True otherwise.
+ */
+gboolean caldav_unlock_object(gchar* lock_token, gchar* URI,
+ caldav_settings* settings, caldav_error* error) {
+ CURL* curl;
+ CURLcode res = 0;
+ char error_buf[CURL_ERROR_SIZE];
+ struct config_data data;
+ struct MemoryStruct chunk;
+ struct MemoryStruct headers;
+ struct curl_slist *http_header = NULL;
+ gboolean result = FALSE;
+ gchar* url;
+
+ if (! caldav_lock_support(settings, error))
+ return result;
+ chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
+ chunk.size = 0; /* no data at this point */
+ headers.memory = NULL;
+ headers.size = 0;
+
+ curl = get_curl(settings);
+ if (!curl) {
+ error->code = -1;
+ error->str = g_strdup("Could not initialize libcurl");
+ g_free(settings->file);
+ settings->file = NULL;
+ return TRUE;
+ }
+
+ http_header = curl_slist_append(http_header,
+ g_strdup_printf("Lock-Token: %s", lock_token));
+ http_header = curl_slist_append(http_header, "Expect:");
+ http_header = curl_slist_append(http_header, "Transfer-Encoding:");
+ data.trace_ascii = settings->trace_ascii;
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
+ /* we pass our 'chunk' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
+ /* we pass our 'headers' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
+ curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
+ if (settings->debug) {
+ curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
+ curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
+ }
+ if (settings->usehttps) {
+ url = g_strdup_printf("https://%s", URI);
+ } else {
+ url = g_strdup_printf("http://%s", URI);
+ }
+ curl_easy_setopt(curl, CURLOPT_URL, url);
+ g_free(url);
+ /* enable uploading */
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "UNLOCK");
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ res = curl_easy_perform(curl);
+ curl_slist_free_all(http_header);
+ if (res != 0) {
+ error->code = -1;
+ error->str = g_strdup_printf("%s", error_buf);
+ g_free(settings->file);
+ settings->file = NULL;
+ }
+ else {
+ long code;
+ res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
+ if (code != 204) {
+ error->code = code;
+ error->str = g_strdup(chunk.memory);
+ }
+ else {
+ result = TRUE;
+ }
+ }
+ if (chunk.memory)
+ free(chunk.memory);
+ if (headers.memory)
+ free(headers.memory);
+ curl_easy_cleanup(curl);
+ return result;
+}
+
+/**
+ * Function to test whether the server supports locking or not. Searching
+ * for PROP LOCK. If LOCK is present then according to RFC4791 PROP UNLOCK
+ * must also be present.
+ * @param settings @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return True if locking is supported by the server. False otherwise
+ */
+gboolean caldav_lock_support(caldav_settings* settings, caldav_error* error) {
+ gboolean found = FALSE;
+ gchar* url = NULL;
+ gchar* mystr = NULL;
+ runtime_info* info;
+
+ info = caldav_get_runtime_info();
+ info->options->verify_ssl_certificate = settings->verify_ssl_certificate;
+ info->options->custom_cacert = g_strdup(settings->custom_cacert);
+ if (settings->usehttps) {
+ mystr = g_strdup("https://");
+ } else {
+ mystr = g_strdup("http://");
+ }
+
+
+ if (settings->username && settings->password) {
+ url = g_strdup_printf("%s%s:%s@%s",
+ mystr, settings->username, settings->password, settings->url);
+ }
+ else if (settings->username) {
+ url = g_strdup_printf("%s%s@%s",
+ mystr, settings->username, settings->url);
+ }
+ else {
+ url = g_strdup_printf("%s%s", mystr, settings->url);
+ }
+ gchar** options = caldav_get_server_options(url, info);
+ g_free(url);
+ gchar** tmp = options;
+ caldav_free_runtime_info(&info);
+ while (*options) {
+ if (strcmp(*options++, "LOCK") == 0) {
+ found = TRUE;
+ break;
+ }
+ }
+ g_strfreev(tmp);
+ g_free(mystr);
+ return found;
+}
+
+
diff --git a/src/lock-caldav-object.h b/src/lock-caldav-object.h
new file mode 100644
index 0000000..6dd884f
--- /dev/null
+++ b/src/lock-caldav-object.h
@@ -0,0 +1,55 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __LOCK_CALDAV_OBJECT_H__
+#define __LOCK_CALDAV_OBJECT_H__
+
+#include "caldav-utils.h"
+#include "caldav.h"
+
+/**
+ * Function which requests a lock on a calendar resource
+ * @param URI The resource to request lock on.
+ * @param settings @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return The Lock-Token or NULL in case of error
+ */
+gchar* caldav_lock_object(
+ gchar* URI, caldav_settings* settings, caldav_error* error);
+
+/**
+ * Function which requests to have a lock removed from a calendar resource
+ * @param lock_token A privious aquired Lock-Token
+ * @param URI The resource to request unlock on.
+ * @param settings @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return False in case the lock could not be removed. True otherwise.
+ */
+gboolean caldav_unlock_object(gchar* lock_token, gchar* URI,
+ caldav_settings* settings, caldav_error* error);
+
+/**
+ * Function to test whether the server supports locking or not
+ * @param settings @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return True if locking is supported by the server. False otherwise
+ */
+gboolean caldav_lock_support(caldav_settings* settings, caldav_error* error);
+
+#endif
diff --git a/src/md5.c b/src/md5.c
new file mode 100644
index 0000000..62d4b2d
--- /dev/null
+++ b/src/md5.c
@@ -0,0 +1,442 @@
+/** md5.c - MD5 Message-Digest Algorithm
+ * Copyright (C) 1995, 1996, 1998, 1999 Free Software Foundation, Inc.
+ *
+ * according to the definition of MD5 in RFC 1321 from April 1992.
+ * NOTE: This is *not* the same file as the one from glibc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 3, or (at your option) any
+ * later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
+ * heavily modified for GnuPG by <werner.koch@guug.de>.
+ * modified again for Sylpheed by <wk@gnupg.org> 2001-02-11.
+ */
+
+
+/* Test values:
+ * "" D4 1D 8C D9 8F 00 B2 04 E9 80 09 98 EC F8 42 7E
+ * "a" 0C C1 75 B9 C0 F1 B6 A8 31 C3 99 E2 69 77 26 61
+ * "abc 90 01 50 98 3C D2 4F B0 D6 96 3F 7D 28 E1 7F 72
+ * "message digest" F9 6B 69 7D 7C B7 93 8D 52 5A 2F 31 AA F1 61 D0
+ */
+
+#include <config.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+
+#include "md5.h"
+
+/****************
+ * Rotate a 32 bit integer by n bytes
+ */
+#if defined(__GNUC__) && defined(__i386__)
+static inline u32
+rol( u32 x, int n)
+{
+ __asm__("roll %%cl,%0"
+ :"=r" (x)
+ :"0" (x),"c" (n));
+ return x;
+}
+#else
+#define rol(x,n) ( ((x) << (n)) | ((x) >> (32-(n))) )
+#endif
+
+
+static void
+md5_init(MD5_CONTEXT *ctx)
+{
+ ctx->A = 0x67452301;
+ ctx->B = 0xefcdab89;
+ ctx->C = 0x98badcfe;
+ ctx->D = 0x10325476;
+
+ ctx->nblocks = 0;
+ ctx->count = 0;
+ ctx->finalized = 0;
+}
+
+/* These are the four functions used in the four steps of the MD5 algorithm
+ and defined in the RFC 1321. The first function is a little bit optimized
+ (as found in Colin Plumbs public domain implementation). */
+/* #define FF(b, c, d) ((b & c) | (~b & d)) */
+#define FF(b, c, d) (d ^ (b & (c ^ d)))
+#define FG(b, c, d) FF (d, b, c)
+#define FH(b, c, d) (b ^ c ^ d)
+#define FI(b, c, d) (c ^ (b | ~d))
+
+
+/****************
+ * transform n*64 bytes
+ */
+static void
+transform(MD5_CONTEXT *ctx, const unsigned char *data)
+{
+ u32 correct_words[16];
+ u32 A = ctx->A;
+ u32 B = ctx->B;
+ u32 C = ctx->C;
+ u32 D = ctx->D;
+ u32 *cwp = correct_words;
+
+#ifdef BIG_ENDIAN_HOST
+ {
+ int i;
+ unsigned char *p2;
+ const unsigned char *p1;
+
+ for (i = 0, p1 = data, p2 = (unsigned char*)correct_words;
+ i < 16; i++, p2 += 4) {
+ p2[3] = *p1++;
+ p2[2] = *p1++;
+ p2[1] = *p1++;
+ p2[0] = *p1++;
+ }
+ }
+#else
+ memcpy(correct_words, data, 64);
+#endif
+
+
+#define OP(a, b, c, d, s, T) \
+ do { \
+ a += FF (b, c, d) + (*cwp++) + T; \
+ a = rol(a, s); \
+ a += b; \
+ } while (0)
+
+ /* Before we start, one word about the strange constants.
+ They are defined in RFC 1321 as
+
+ T[i] = (int) (4294967296.0 * fabs (sin (i))), i=1..64
+ */
+
+ /* Round 1. */
+ OP (A, B, C, D, 7, 0xd76aa478);
+ OP (D, A, B, C, 12, 0xe8c7b756);
+ OP (C, D, A, B, 17, 0x242070db);
+ OP (B, C, D, A, 22, 0xc1bdceee);
+ OP (A, B, C, D, 7, 0xf57c0faf);
+ OP (D, A, B, C, 12, 0x4787c62a);
+ OP (C, D, A, B, 17, 0xa8304613);
+ OP (B, C, D, A, 22, 0xfd469501);
+ OP (A, B, C, D, 7, 0x698098d8);
+ OP (D, A, B, C, 12, 0x8b44f7af);
+ OP (C, D, A, B, 17, 0xffff5bb1);
+ OP (B, C, D, A, 22, 0x895cd7be);
+ OP (A, B, C, D, 7, 0x6b901122);
+ OP (D, A, B, C, 12, 0xfd987193);
+ OP (C, D, A, B, 17, 0xa679438e);
+ OP (B, C, D, A, 22, 0x49b40821);
+
+#undef OP
+#define OP(f, a, b, c, d, k, s, T) \
+ do { \
+ a += f (b, c, d) + correct_words[k] + T; \
+ a = rol(a, s); \
+ a += b; \
+ } while (0)
+
+ /* Round 2. */
+ OP (FG, A, B, C, D, 1, 5, 0xf61e2562);
+ OP (FG, D, A, B, C, 6, 9, 0xc040b340);
+ OP (FG, C, D, A, B, 11, 14, 0x265e5a51);
+ OP (FG, B, C, D, A, 0, 20, 0xe9b6c7aa);
+ OP (FG, A, B, C, D, 5, 5, 0xd62f105d);
+ OP (FG, D, A, B, C, 10, 9, 0x02441453);
+ OP (FG, C, D, A, B, 15, 14, 0xd8a1e681);
+ OP (FG, B, C, D, A, 4, 20, 0xe7d3fbc8);
+ OP (FG, A, B, C, D, 9, 5, 0x21e1cde6);
+ OP (FG, D, A, B, C, 14, 9, 0xc33707d6);
+ OP (FG, C, D, A, B, 3, 14, 0xf4d50d87);
+ OP (FG, B, C, D, A, 8, 20, 0x455a14ed);
+ OP (FG, A, B, C, D, 13, 5, 0xa9e3e905);
+ OP (FG, D, A, B, C, 2, 9, 0xfcefa3f8);
+ OP (FG, C, D, A, B, 7, 14, 0x676f02d9);
+ OP (FG, B, C, D, A, 12, 20, 0x8d2a4c8a);
+
+ /* Round 3. */
+ OP (FH, A, B, C, D, 5, 4, 0xfffa3942);
+ OP (FH, D, A, B, C, 8, 11, 0x8771f681);
+ OP (FH, C, D, A, B, 11, 16, 0x6d9d6122);
+ OP (FH, B, C, D, A, 14, 23, 0xfde5380c);
+ OP (FH, A, B, C, D, 1, 4, 0xa4beea44);
+ OP (FH, D, A, B, C, 4, 11, 0x4bdecfa9);
+ OP (FH, C, D, A, B, 7, 16, 0xf6bb4b60);
+ OP (FH, B, C, D, A, 10, 23, 0xbebfbc70);
+ OP (FH, A, B, C, D, 13, 4, 0x289b7ec6);
+ OP (FH, D, A, B, C, 0, 11, 0xeaa127fa);
+ OP (FH, C, D, A, B, 3, 16, 0xd4ef3085);
+ OP (FH, B, C, D, A, 6, 23, 0x04881d05);
+ OP (FH, A, B, C, D, 9, 4, 0xd9d4d039);
+ OP (FH, D, A, B, C, 12, 11, 0xe6db99e5);
+ OP (FH, C, D, A, B, 15, 16, 0x1fa27cf8);
+ OP (FH, B, C, D, A, 2, 23, 0xc4ac5665);
+
+ /* Round 4. */
+ OP (FI, A, B, C, D, 0, 6, 0xf4292244);
+ OP (FI, D, A, B, C, 7, 10, 0x432aff97);
+ OP (FI, C, D, A, B, 14, 15, 0xab9423a7);
+ OP (FI, B, C, D, A, 5, 21, 0xfc93a039);
+ OP (FI, A, B, C, D, 12, 6, 0x655b59c3);
+ OP (FI, D, A, B, C, 3, 10, 0x8f0ccc92);
+ OP (FI, C, D, A, B, 10, 15, 0xffeff47d);
+ OP (FI, B, C, D, A, 1, 21, 0x85845dd1);
+ OP (FI, A, B, C, D, 8, 6, 0x6fa87e4f);
+ OP (FI, D, A, B, C, 15, 10, 0xfe2ce6e0);
+ OP (FI, C, D, A, B, 6, 15, 0xa3014314);
+ OP (FI, B, C, D, A, 13, 21, 0x4e0811a1);
+ OP (FI, A, B, C, D, 4, 6, 0xf7537e82);
+ OP (FI, D, A, B, C, 11, 10, 0xbd3af235);
+ OP (FI, C, D, A, B, 2, 15, 0x2ad7d2bb);
+ OP (FI, B, C, D, A, 9, 21, 0xeb86d391);
+
+ /* Put checksum in context given as argument. */
+ ctx->A += A;
+ ctx->B += B;
+ ctx->C += C;
+ ctx->D += D;
+}
+
+
+
+/* The routine updates the message-digest context to
+ * account for the presence of each of the characters inBuf[0..inLen-1]
+ * in the message whose digest is being computed.
+ */
+static void
+md5_update(MD5_CONTEXT *hd, const unsigned char *inbuf, size_t inlen)
+{
+ if (hd->count == 64) { /* flush the buffer */
+ transform( hd, hd->buf );
+ hd->count = 0;
+ hd->nblocks++;
+ }
+ if (!inbuf)
+ return;
+ if (hd->count) {
+ for (; inlen && hd->count < 64; inlen--)
+ hd->buf[hd->count++] = *inbuf++;
+ md5_update(hd, NULL, 0);
+ if (!inlen)
+ return;
+ }
+
+ while (inlen >= 64) {
+ transform(hd, inbuf);
+ hd->count = 0;
+ hd->nblocks++;
+ inlen -= 64;
+ inbuf += 64;
+ }
+
+ for (; inlen && hd->count < 64; inlen--)
+ hd->buf[hd->count++] = *inbuf++;
+}
+
+
+
+/* The routine final terminates the message-digest computation and
+ * ends with the desired message digest in mdContext->digest[0...15].
+ * The handle is prepared for a new MD5 cycle.
+ * Returns 16 bytes representing the digest.
+ */
+
+static void
+do_final(MD5_CONTEXT *hd)
+{
+ u32 t, msb, lsb;
+ unsigned char *p;
+
+ md5_update(hd, NULL, 0); /* flush */
+
+ msb = 0;
+ t = hd->nblocks;
+ if ((lsb = t << 6) < t) /* multiply by 64 to make a byte count */
+ msb++;
+ msb += t >> 26;
+ t = lsb;
+ if ((lsb = t + hd->count) < t) /* add the count */
+ msb++;
+ t = lsb;
+ if ((lsb = t << 3) < t) /* multiply by 8 to make a bit count */
+ msb++;
+ msb += t >> 29;
+
+ if (hd->count < 56) { /* enough room */
+ hd->buf[hd->count++] = 0x80; /* pad */
+ while(hd->count < 56)
+ hd->buf[hd->count++] = 0; /* pad */
+ } else { /* need one extra block */
+ hd->buf[hd->count++] = 0x80; /* pad character */
+ while (hd->count < 64)
+ hd->buf[hd->count++] = 0;
+ md5_update(hd, NULL, 0); /* flush */
+ memset(hd->buf, 0, 56); /* fill next block with zeroes */
+ }
+
+ /* append the 64 bit count */
+ hd->buf[56] = lsb ;
+ hd->buf[57] = lsb >> 8;
+ hd->buf[58] = lsb >> 16;
+ hd->buf[59] = lsb >> 24;
+ hd->buf[60] = msb ;
+ hd->buf[61] = msb >> 8;
+ hd->buf[62] = msb >> 16;
+ hd->buf[63] = msb >> 24;
+ transform(hd, hd->buf);
+
+ p = hd->buf;
+#ifdef BIG_ENDIAN_HOST
+#define X(a) do { *p++ = hd->a ; *p++ = hd->a >> 8; \
+ *p++ = hd->a >> 16; *p++ = hd->a >> 24; } while(0)
+#else /* little endian */
+ /*#define X(a) do { *(u32*)p = hd->##a ; p += 4; } while(0)*/
+ /* Unixware's cpp doesn't like the above construct so we do it his way:
+ * (reported by Allan Clark) */
+#define X(a) do { *(u32*)p = (*hd).a ; p += 4; } while(0)
+#endif
+ X(A);
+ X(B);
+ X(C);
+ X(D);
+#undef X
+ hd->finalized = 1;
+}
+
+static void
+md5_final(unsigned char *digest, MD5_CONTEXT *ctx)
+{
+ if (!ctx->finalized)
+ do_final(ctx);
+ memcpy(digest, ctx->buf, 16);
+}
+
+/*
+ * Creates a MD5 digest in hex fomrat (lowercase letters) from the
+ * string S. hextdigest but be buffer of at lease 33 bytes!
+ */
+static void
+md5_hex_digest(char *hexdigest, const unsigned char *s)
+{
+ int i;
+ MD5_CONTEXT context;
+ unsigned char digest[16];
+
+ md5_init(&context);
+ md5_update(&context, s, strlen((gchar *) s));
+ md5_final(digest, &context);
+
+ for (i = 0; i < 16; i++)
+ sprintf(hexdigest + 2 * i, "%02x", digest[i]);
+}
+
+
+/*
+** Function: md5_hmac
+** taken from the file rfc2104.txt
+** written by Martin Schaaf <mascha@ma-scha.de>
+*/
+static void
+md5_hmac(unsigned char *digest,
+ const unsigned char* text, int text_len,
+ const unsigned char* key, int key_len)
+{
+ MD5_CONTEXT context;
+ unsigned char k_ipad[64]; /* inner padding -
+ * key XORd with ipad
+ */
+ unsigned char k_opad[64]; /* outer padding -
+ * key XORd with opad
+ */
+ /* unsigned char tk[16]; */
+ int i;
+
+ /* start out by storing key in pads */
+ memset(k_ipad, 0, sizeof k_ipad);
+ memset(k_opad, 0, sizeof k_opad);
+ if (key_len > 64) {
+ /* if key is longer than 64 bytes reset it to key=MD5(key) */
+ MD5_CONTEXT tctx;
+
+ md5_init(&tctx);
+ md5_update(&tctx, key, key_len);
+ md5_final(k_ipad, &tctx);
+ md5_final(k_opad, &tctx);
+ } else {
+ memcpy(k_ipad, key, key_len);
+ memcpy(k_opad, key, key_len);
+ }
+
+ /*
+ * the HMAC_MD5 transform looks like:
+ *
+ * MD5(K XOR opad, MD5(K XOR ipad, text))
+ *
+ * where K is an n byte key
+ * ipad is the byte 0x36 repeated 64 times
+ * opad is the byte 0x5c repeated 64 times
+ * and text is the data being protected
+ */
+
+
+ /* XOR key with ipad and opad values */
+ for (i = 0; i < 64; i++) {
+ k_ipad[i] ^= 0x36;
+ k_opad[i] ^= 0x5c;
+ }
+
+ /*
+ * perform inner MD5
+ */
+ md5_init(&context); /* init context for 1st
+ * pass */
+ md5_update(&context, k_ipad, 64); /* start with inner pad */
+ md5_update(&context, text, text_len); /* then text of datagram */
+ md5_final(digest, &context); /* finish up 1st pass */
+ /*
+ * perform outer MD5
+ */
+ md5_init(&context); /* init context for 2nd
+ * pass */
+ md5_update(&context, k_opad, 64); /* start with outer pad */
+ md5_update(&context, digest, 16); /* then results of 1st
+ * hash */
+ md5_final(digest, &context); /* finish up 2nd pass */
+}
+
+
+static void
+md5_hex_hmac(char *hexdigest,
+ const unsigned char* text, int text_len,
+ const unsigned char* key, int key_len)
+{
+ unsigned char digest[16];
+ int i;
+
+ md5_hmac(digest, text, text_len, key, key_len);
+ for (i = 0; i < 16; i++)
+ sprintf(hexdigest + 2 * i, "%02x", digest[i]);
+}
+
+void caldav_md5_hex_digest(char *hexdigest, const unsigned char *s) {
+ md5_hex_digest(hexdigest, s);
+}
+
+void caldav_md5_hex_hmac(char *hexdigest,
+ const unsigned char* text, int text_len,
+ const unsigned char* key, int key_len) {
+ md5_hex_hmac(hexdigest, text, text_len, key, key_len);
+}
diff --git a/src/md5.h b/src/md5.h
new file mode 100644
index 0000000..7605214
--- /dev/null
+++ b/src/md5.h
@@ -0,0 +1,52 @@
+/**
+ * md5.h - MD5 Message-Digest Algorithm
+ * Copyright (C) 1995, 1996, 1998, 1999 Free Software Foundation, Inc.
+ *
+ * according to the definition of MD5 in RFC 1321 from April 1992.
+ * NOTE: This is *not* the same file as the one from glibc
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 3, or (at your option) any
+ * later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _MD5_HDR_
+#define _MD5_HDR_
+
+#include <glib.h>
+
+/**
+ * @typedef u32
+ * Kept this typedef for compatibility reasons
+ */
+#ifndef HAVE_U32_TYPEDEF
+ #undef u32
+ typedef guint32 u32;
+ #define HAVE_U32_TYPEDEF
+#endif
+
+typedef struct { /* Hmm, should be private */
+ u32 A,B,C,D;
+ u32 nblocks;
+ unsigned char buf[64];
+ int count;
+ int finalized;
+} MD5_CONTEXT;
+
+void caldav_md5_hex_digest(char *hexdigest, const unsigned char *s);
+
+void caldav_md5_hex_hmac(char *hexdigest,
+ const unsigned char* text, int text_len,
+ const unsigned char* key, int key_len);
+
+#endif /* _MD5_HDR_ */
+
diff --git a/src/modify-caldav-object.c b/src/modify-caldav-object.c
new file mode 100644
index 0000000..fb3a4d0
--- /dev/null
+++ b/src/modify-caldav-object.c
@@ -0,0 +1,555 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "modify-caldav-object.h"
+#include "lock-caldav-object.h"
+#include <glib.h>
+#include <curl/curl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/**
+ * A static literal string containing the first part of the calendar query.
+ * The actual UID to use for the query is added at runtime.
+ */
+static char* search_head =
+"<?xml version=\"1.0\" encoding=\"utf-8\" ?>"
+"<C:calendar-query xmlns:D=\"DAV:\""
+" xmlns:C=\"urn:ietf:params:xml:ns:caldav\">"
+" <D:prop>"
+" <D:getetag/>"
+" <C:calendar-data/>"
+" </D:prop>"
+" <C:filter>"
+" <C:comp-filter name=\"VCALENDAR\">"
+" <C:comp-filter name=\"VEVENT\">"
+" <C:prop-filter name=\"UID\">";
+
+/**
+ * A static literal string containing the first part of the calendar query.
+ * The actual UID to use for the query is added at runtime.
+ */
+static char* search_tasks_head =
+"<?xml version=\"1.0\" encoding=\"utf-8\" ?>"
+"<C:calendar-query xmlns:D=\"DAV:\""
+" xmlns:C=\"urn:ietf:params:xml:ns:caldav\">"
+" <D:prop>"
+" <D:getetag/>"
+" <C:calendar-data/>"
+" </D:prop>"
+" <C:filter>"
+" <C:comp-filter name=\"VCALENDAR\">"
+" <C:comp-filter name=\"VTODO\">"
+" <C:prop-filter name=\"UID\">";
+
+/**
+ * A static literal string containing the last part of the calendar query
+ */
+static char* search_tail =
+"</C:prop-filter>"
+" </C:comp-filter>"
+" </C:comp-filter>"
+" </C:filter>"
+"</C:calendar-query>";
+
+/**
+ * Function for modifying an event.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_modify(caldav_settings* settings, caldav_error* error) {
+ CURL* curl;
+ CURLcode res = 0;
+ char error_buf[CURL_ERROR_SIZE];
+ struct config_data data;
+ struct MemoryStruct chunk;
+ struct MemoryStruct headers;
+ struct curl_slist *http_header = NULL;
+ gchar* search;
+ gchar* uid;
+ gboolean result = FALSE;
+ gboolean LOCKSUPPORT = FALSE;
+ gchar* lock_token = NULL;
+
+ chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
+ chunk.size = 0; /* no data at this point */
+ headers.memory = NULL;
+ headers.size = 0;
+
+ curl = get_curl(settings);
+ if (!curl) {
+ error->code = -1;
+ error->str = g_strdup("Could not initialize libcurl");
+ g_free(settings->file);
+ settings->file = NULL;
+ return TRUE;
+ }
+
+ http_header = curl_slist_append(http_header,
+ "Content-Type: application/xml; charset=\"utf-8\"");
+ http_header = curl_slist_append(http_header, "Depth: 1");
+ http_header = curl_slist_append(http_header, "Expect:");
+ http_header = curl_slist_append(http_header, "Transfer-Encoding:");
+ http_header = curl_slist_append(http_header, "Connection: close");
+ data.trace_ascii = settings->trace_ascii;
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
+ /* we pass our 'chunk' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
+ /* we pass our 'headers' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
+ curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
+ if (settings->debug) {
+ curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
+ curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
+ }
+ gchar* file = g_strdup(settings->file);
+ if ((uid = get_response_header("uid", file, FALSE)) == NULL) {
+ g_free(file);
+ error->code = 1;
+ error->str = g_strdup("Error: Missing required UID for object");
+ return TRUE;
+ }
+ g_free(file);
+ /*
+ * collation is not supported by ICalendar.
+ * <C:text-match collation=\"i;ascii-casemap\">%s</C:text-match>
+ */
+ search = g_strdup_printf(
+ "%s\r\n<C:text-match>%s</C:text-match>\r\n%s",
+ search_head, uid, search_tail);
+ g_free(uid);
+ /* enable uploading */
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, search);
+ curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, strlen(search));
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "REPORT");
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ res = curl_easy_perform(curl);
+ curl_slist_free_all(http_header);
+ http_header = NULL;
+ g_free(search);
+ if (res != 0) {
+ error->code = -1;
+ error->str = g_strdup_printf("%s", error_buf);
+ g_free(settings->file);
+ settings->file = NULL;
+ result = TRUE;
+ }
+ else {
+ long code;
+ res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
+ if (code != 207) {
+ error->code = code;
+ error->str = g_strdup(chunk.memory);
+ result = TRUE;
+ }
+ else {
+ /* enable uploading */
+ gchar* url = NULL;
+ gchar* etag = NULL;
+ url = get_url(chunk.memory);
+ if (url) {
+ etag = get_etag(chunk.memory);
+ if (etag) {
+ gchar* host = get_host(settings->url);
+ if (host) {
+ file = g_strdup(url);
+ g_free(url);
+ url = g_strdup_printf("%s%s", host, file);
+ g_free(file);
+ g_free(host);
+ }
+ else {
+ g_free(etag);
+ g_free(url);
+ url = NULL;
+ }
+ }
+ else {
+ g_free(url);
+ url = NULL;
+ }
+ if (url) {
+ int lock = 0;
+ caldav_error lock_error;
+
+ file = g_strdup(etag);
+ g_free(etag);
+ etag = g_strdup_printf("If-Match: %s", file);
+ g_free(file);
+ http_header = curl_slist_append(http_header, etag);
+ g_free(etag);
+ http_header = curl_slist_append(http_header,
+ "Content-Type: text/calendar; charset=\"utf-8\"");
+ http_header = curl_slist_append(http_header, "Expect:");
+ http_header = curl_slist_append(
+ http_header, "Transfer-Encoding:");
+ http_header = curl_slist_append(http_header, "Connection: close");
+ if (settings->use_locking)
+ LOCKSUPPORT = caldav_lock_support(settings, &lock_error);
+ else
+ LOCKSUPPORT = FALSE;
+ if (LOCKSUPPORT) {
+ lock_token = caldav_lock_object(url, settings, &lock_error);
+ if (lock_token) {
+ http_header = curl_slist_append(
+ http_header, g_strdup_printf(
+ "If: (%s)", lock_token));
+ }
+ /*
+ * If error code is 423 (Resource is LOCKED) bail out
+ */
+ else if (lock_error.code == 423) {
+ lock = -1;
+ }
+ /*
+ * If error code is 501 (Not implemented) we continue
+ * hoping for the best.
+ */
+ else if (lock_error.code == 501) {
+ lock_token = g_strdup("");
+ }
+ else {
+ lock = -1;
+ }
+ }
+ if (! LOCKSUPPORT || (LOCKSUPPORT && lock_token && lock_error.code != 423)) {
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
+ curl_easy_setopt(curl, CURLOPT_URL, rebuild_url(settings, url));
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, settings->file);
+ curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE,
+ strlen(settings->file));
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "PUT");
+ res = curl_easy_perform(curl);
+ if (LOCKSUPPORT && lock_token) {
+ caldav_unlock_object(
+ lock_token, url, settings, &lock_error);
+ }
+ }
+ g_free(url);
+ g_free(lock_token);
+ if (res != 0 || lock < 0) {
+ /* Is this a lock_error don't change error*/
+ if (lock == 0 || lock_error.code == 423) {
+ error->code = code;
+ error->str = g_strdup(chunk.memory);
+ }
+ else {
+ error->code = lock_error.code;
+ error->str = g_strdup(lock_error.str);
+ }
+ result = TRUE;
+ g_free(settings->file);
+ settings->file = NULL;
+ }
+ else {
+ long code;
+ res = curl_easy_getinfo(
+ curl, CURLINFO_RESPONSE_CODE, &code);
+ if (code != 204) {
+ error->code = code;
+ error->str = g_strdup(chunk.memory);
+ result = TRUE;
+ }
+ }
+ curl_slist_free_all(http_header);
+ }
+ else {
+ error->code = code;
+ if (chunk.memory)
+ error->str = g_strdup(chunk.memory);
+ else
+ error->str = g_strdup("No object found");
+ result = TRUE;
+ }
+ }
+ else {
+ /*
+ * No object found on server. Posible synchronization
+ * problem or a server side race condition
+ */
+ error->code = 409;
+ error->str = g_strdup("No object found");
+ result = TRUE;
+ }
+ }
+ }
+ if (chunk.memory)
+ free(chunk.memory);
+ if (headers.memory)
+ free(headers.memory);
+ curl_easy_cleanup(curl);
+ return result;
+}
+
+/**
+ * Function for modifying a task.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_tasks_modify(caldav_settings* settings, caldav_error* error) {
+ CURL* curl;
+ CURLcode res = 0;
+ char error_buf[CURL_ERROR_SIZE];
+ struct config_data data;
+ struct MemoryStruct chunk;
+ struct MemoryStruct headers;
+ struct curl_slist *http_header = NULL;
+ gchar* search;
+ gchar* uid;
+ gboolean result = FALSE;
+ gboolean LOCKSUPPORT = FALSE;
+ gchar* lock_token = NULL;
+
+ chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
+ chunk.size = 0; /* no data at this point */
+ headers.memory = NULL;
+ headers.size = 0;
+
+ curl = get_curl(settings);
+ if (!curl) {
+ error->code = -1;
+ error->str = g_strdup("Could not initialize libcurl");
+ g_free(settings->file);
+ settings->file = NULL;
+ return TRUE;
+ }
+
+ http_header = curl_slist_append(http_header,
+ "Content-Type: application/xml; charset=\"utf-8\"");
+ http_header = curl_slist_append(http_header, "Depth: 1");
+ http_header = curl_slist_append(http_header, "Expect:");
+ http_header = curl_slist_append(http_header, "Transfer-Encoding:");
+ http_header = curl_slist_append(http_header, "Connection: close");
+ data.trace_ascii = settings->trace_ascii;
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
+ /* we pass our 'chunk' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
+ /* we pass our 'headers' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
+ curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
+ if (settings->debug) {
+ curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
+ curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
+ }
+ gchar* file = g_strdup(settings->file);
+ if ((uid = get_response_header("uid", file, FALSE)) == NULL) {
+ g_free(file);
+ error->code = 1;
+ error->str = g_strdup("Error: Missing required UID for object");
+ return TRUE;
+ }
+ g_free(file);
+ /*
+ * collation is not supported by ICalendar.
+ * <C:text-match collation=\"i;ascii-casemap\">%s</C:text-match>
+ */
+ search = g_strdup_printf(
+ "%s\r\n<C:text-match>%s</C:text-match>\r\n%s",
+ search_tasks_head, uid, search_tail);
+ g_free(uid);
+ /* enable uploading */
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, search);
+ curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, strlen(search));
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "REPORT");
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ res = curl_easy_perform(curl);
+ curl_slist_free_all(http_header);
+ http_header = NULL;
+ g_free(search);
+ if (res != 0) {
+ error->code = -1;
+ error->str = g_strdup_printf("%s", error_buf);
+ g_free(settings->file);
+ settings->file = NULL;
+ result = TRUE;
+ }
+ else {
+ long code;
+ res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
+ if (code != 207) {
+ error->code = code;
+ error->str = g_strdup(chunk.memory);
+ result = TRUE;
+ }
+ else {
+ /* enable uploading */
+ gchar* url = NULL;
+ gchar* etag = NULL;
+ url = get_url(chunk.memory);
+ if (url) {
+ etag = get_etag(chunk.memory);
+ if (etag) {
+ gchar* host = get_host(settings->url);
+ if (host) {
+ file = g_strdup(url);
+ g_free(url);
+ url = g_strdup_printf("%s%s", host, file);
+ g_free(file);
+ g_free(host);
+ }
+ else {
+ g_free(etag);
+ g_free(url);
+ url = NULL;
+ }
+ }
+ else {
+ g_free(url);
+ url = NULL;
+ }
+ if (url) {
+ int lock = 0;
+ caldav_error lock_error;
+
+ file = g_strdup(etag);
+ g_free(etag);
+ etag = g_strdup_printf("If-Match: %s", file);
+ g_free(file);
+ http_header = curl_slist_append(http_header, etag);
+ g_free(etag);
+ http_header = curl_slist_append(http_header,
+ "Content-Type: text/calendar; charset=\"utf-8\"");
+ http_header = curl_slist_append(http_header, "Expect:");
+ http_header = curl_slist_append(
+ http_header, "Transfer-Encoding:");
+ http_header = curl_slist_append(http_header, "Connection: close");
+ if (settings->use_locking)
+ LOCKSUPPORT = caldav_lock_support(settings, &lock_error);
+ else
+ LOCKSUPPORT = FALSE;
+ if (LOCKSUPPORT) {
+ lock_token = caldav_lock_object(url, settings, &lock_error);
+ if (lock_token) {
+ http_header = curl_slist_append(
+ http_header, g_strdup_printf(
+ "If: (%s)", lock_token));
+ }
+ /*
+ * If error code is 423 (Resource is LOCKED) bail out
+ */
+ else if (lock_error.code == 423) {
+ lock = -1;
+ }
+ /*
+ * If error code is 501 (Not implemented) we continue
+ * hoping for the best.
+ */
+ else if (lock_error.code == 501) {
+ lock_token = g_strdup("");
+ }
+ else {
+ lock = -1;
+ }
+ }
+ if (! LOCKSUPPORT || (LOCKSUPPORT && lock_token && lock_error.code != 423)) {
+ curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
+ curl_easy_setopt(curl, CURLOPT_URL, rebuild_url(settings, url));
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, settings->file);
+ curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE,
+ strlen(settings->file));
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "PUT");
+ res = curl_easy_perform(curl);
+ if (LOCKSUPPORT && lock_token) {
+ caldav_unlock_object(
+ lock_token, url, settings, &lock_error);
+ }
+ }
+ g_free(url);
+ g_free(lock_token);
+ if (res != 0 || lock < 0) {
+ /* Is this a lock_error don't change error*/
+ if (lock == 0 || lock_error.code == 423) {
+ error->code = code;
+ error->str = g_strdup(chunk.memory);
+ }
+ else {
+ error->code = lock_error.code;
+ error->str = g_strdup(lock_error.str);
+ }
+ result = TRUE;
+ g_free(settings->file);
+ settings->file = NULL;
+ }
+ else {
+ long code;
+ res = curl_easy_getinfo(
+ curl, CURLINFO_RESPONSE_CODE, &code);
+ if (code != 204) {
+ error->code = code;
+ error->str = g_strdup(chunk.memory);
+ result = TRUE;
+ }
+ }
+ curl_slist_free_all(http_header);
+ }
+ else {
+ error->code = code;
+ if (chunk.memory)
+ error->str = g_strdup(chunk.memory);
+ else
+ error->str = g_strdup("No object found");
+ result = TRUE;
+ }
+ }
+ else {
+ /*
+ * No object found on server. Posible synchronization
+ * problem or a server side race condition
+ */
+ error->code = 409;
+ error->str = g_strdup("No object found");
+ result = TRUE;
+ }
+ }
+ }
+ if (chunk.memory)
+ free(chunk.memory);
+ if (headers.memory)
+ free(headers.memory);
+ curl_easy_cleanup(curl);
+ return result;
+}
+
diff --git a/src/modify-caldav-object.h b/src/modify-caldav-object.h
new file mode 100644
index 0000000..4171f91
--- /dev/null
+++ b/src/modify-caldav-object.h
@@ -0,0 +1,42 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __MODIFY_CALDAV_OBJECT_H__
+#define __MODIFY_CALDAV_OBJECT_H__
+
+#include "caldav-utils.h"
+#include "caldav.h"
+
+/**
+ * Function for modifying an event.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_modify(caldav_settings* settings, caldav_error* error);
+
+/**
+ * Function for modifying a task.
+ * @param settings A pointer to caldav_settings. @see caldav_settings
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @return TRUE in case of error, FALSE otherwise.
+ */
+gboolean caldav_tasks_modify(caldav_settings* settings, caldav_error* error);
+
+#endif
diff --git a/src/options-caldav-server.c b/src/options-caldav-server.c
new file mode 100644
index 0000000..1d97d04
--- /dev/null
+++ b/src/options-caldav-server.c
@@ -0,0 +1,135 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "options-caldav-server.h"
+#include <glib.h>
+#include <curl/curl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/**
+ * Function for getting supported options from a server.
+ * @param curl A pointer to an initialized CURL instance
+ * @param settings struct containing the URL to the server. If authentication
+ * is required prior to making the call the credentials must be available
+ * via CURLOPT_USERPWD before calling.
+ * @param result A pointer to a struct _response. If test is true
+ * this variable can be NULL. Caller is responsible for freeing associated
+ * memory.
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @param test if this is true response will be whether the server
+ * represented by the URL is a CalDAV collection or not.
+ * @return FALSE in case of error, TRUE otherwise.
+ */
+gboolean caldav_getoptions(CURL* curl, caldav_settings* settings, response* result,
+ caldav_error* error, gboolean test) {
+ CURLcode res = 0;
+ char error_buf[CURL_ERROR_SIZE];
+ struct MemoryStruct chunk;
+ struct MemoryStruct headers;
+ gboolean enabled = FALSE;
+
+ if (! curl)
+ return FALSE;
+
+ if (!error) {
+ error = (caldav_error *) malloc(sizeof(struct _caldav_error));
+ memset(error, '\0', sizeof(struct _caldav_error));
+ }
+ chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
+ chunk.size = 0; /* no data at this point */
+ headers.memory = NULL;
+ headers.size = 0;
+
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
+ /* we pass our 'chunk' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
+ /* send all data to this function */
+ curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
+ /* we pass our 'chunk' struct to the callback function */
+ curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
+ curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "OPTIONS");
+ curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
+ curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
+ res = curl_easy_perform(curl);
+ if (res == 0) {
+ gchar* head;
+ head = get_response_header("DAV", headers.memory, TRUE);
+ if (head && strstr(head, "calendar-access") != NULL) {
+ enabled = TRUE;
+ if (! test) {
+ result->msg = g_strdup(
+ get_response_header("Allow", headers.memory, FALSE));
+ }
+ }
+ else {
+ long code;
+ res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
+ if (code == 200) {
+ error->code = -1;
+ error->str = g_strdup("URL is not a CalDAV resource");
+ }
+ else {
+ error->code = -1 * code;
+ error->str = g_strdup(headers.memory);
+ }
+ }
+ g_free(head);
+ }
+ else if (
+ (res == CURLE_SSL_CONNECT_ERROR ||
+ CURLE_PEER_FAILED_VERIFICATION ||
+ CURLE_SSL_ENGINE_NOTFOUND ||
+ CURLE_SSL_ENGINE_SETFAILED ||
+ CURLE_SSL_CERTPROBLEM ||
+ CURLE_SSL_CIPHER ||
+ CURLE_SSL_CACERT ||
+ CURLE_SSL_CACERT_BADFILE ||
+ CURLE_SSL_CRL_BADFILE ||
+ CURLE_SSL_ISSUER_ERROR) && settings->usehttps) {
+ error->code = -2;
+ error->str = g_strdup(error_buf);
+ }
+ else if (res == CURLE_COULDNT_RESOLVE_HOST) {
+ error->code = -3;
+ error->str = g_strdup("Could not resolve host");
+ }
+ else if (res == CURLE_COULDNT_CONNECT) {
+ error->code = -4;
+ error->str = g_strdup("Unable to connect");
+ }
+ else {
+ error->code = -1;
+ error->str = g_strdup("URL is not a CalDAV resource");
+ }
+ if (chunk.memory)
+ free(chunk.memory);
+ if (headers.memory)
+ free(headers.memory);
+ curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "GET");
+ return enabled;
+}
diff --git a/src/options-caldav-server.h b/src/options-caldav-server.h
new file mode 100644
index 0000000..d17cba2
--- /dev/null
+++ b/src/options-caldav-server.h
@@ -0,0 +1,43 @@
+/* vim: set textwidth=80 tabstop=4: */
+
+/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __OPTIONS_CALDAV_SERVER_H__
+#define __OPTIONS_CALDAV_SERVER_H__
+
+#include "caldav-utils.h"
+#include "caldav.h"
+
+/**
+ * Function for getting supported options from a server.
+ * @param curl A pointer to an initialized CURL instance
+ * @param settings struct containing the URL to the server. If authentication
+ * is required prior to making the call the credentials must be available
+ * via CURLOPT_USERPWD before calling.
+ * @param result A pointer to a struct _response. If test is true
+ * this variable can be NULL. Caller is responsible for freeing associated
+ * memory.
+ * @param error A pointer to caldav_error. @see caldav_error
+ * @param test if this is true response will be whether the server
+ * represented by the URL is a CalDAV collection or not.
+ * @return FALSE in case of error, TRUE otherwise.
+ */
+gboolean caldav_getoptions(CURL* curl, caldav_settings* settings, response* result,
+ caldav_error* error, gboolean test);
+
+#endif