/* 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 #include #include #include #include /** * A static literal string containing the calendar query for fetching * all events from collection. */ static const char* getall_request = "" "" " " " " " " " " " " " " " " " " " " "\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 = "" /*"" " "*/ "" " " /*" "*/ " " " " " " " " " "; /** * A static literal string containing the last part of the calendar query */ static const char* getrange_request_foot = " " " " " " "\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\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; }