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Diffstat (limited to 'libkcal/libical/src/libical/icalcomponent.c')
| -rw-r--r-- | libkcal/libical/src/libical/icalcomponent.c | 2598 |
1 files changed, 0 insertions, 2598 deletions
diff --git a/libkcal/libical/src/libical/icalcomponent.c b/libkcal/libical/src/libical/icalcomponent.c deleted file mode 100644 index bab0e72a..00000000 --- a/libkcal/libical/src/libical/icalcomponent.c +++ /dev/null @@ -1,2598 +0,0 @@ -/*====================================================================== - FILE: icalcomponent.c - CREATOR: eric 28 April 1999 - - - (C) COPYRIGHT 2000, Eric Busboom <eric@softwarestudio.org> - http://www.softwarestudio.org - - This program is free software; you can redistribute it and/or modify - it under the terms of either: - - The LGPL as published by the Free Software Foundation, version - 2.1, available at: http://www.fsf.org/copyleft/lesser.html - - Or: - - The Mozilla Public License Version 1.0. You may obtain a copy of - the License at http://www.mozilla.org/MPL/ - - The original code is icalcomponent.c - -======================================================================*/ - - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include "icalcomponent.h" -#include "pvl.h" /* "Pointer-to-void list" */ -#include "icalerror.h" -#include "icalmemory.h" -#include "icalenums.h" -#include "icaltime.h" -#include "icalarray.h" -#include "icaltimezone.h" -#include "icalduration.h" -#include "icalperiod.h" -#include "icalparser.h" -#include "icalrestriction.h" - -#include <stdlib.h> /* for malloc */ -#include <stdarg.h> /* for va_list, etc */ -#include <errno.h> -#include <assert.h> -#include <stdio.h> /* for fprintf */ -#include <string.h> /* for strdup */ -#include <limits.h> /* for INT_MAX */ - -struct icalcomponent_impl -{ - char id[5]; - icalcomponent_kind kind; - char* x_name; - pvl_list properties; - pvl_elem property_iterator; - pvl_list components; - pvl_elem component_iterator; - icalcomponent* parent; - - /** An array of icaltimezone structs. We use this so we can do fast - lookup of timezones using binary searches. timezones_sorted is - set to 0 whenever we add a timezone, so we remember to sort the - array before doing a binary search. */ - icalarray* timezones; - int timezones_sorted; -}; - -/* icalproperty functions that only components get to use */ -void icalproperty_set_parent(icalproperty* property, - icalcomponent* component); -icalcomponent* icalproperty_get_parent(icalproperty* property); -void icalcomponent_add_children(icalcomponent *impl,va_list args); -static icalcomponent* icalcomponent_new_impl (icalcomponent_kind kind); - -static void icalcomponent_merge_vtimezone (icalcomponent *comp, - icalcomponent *vtimezone, - icalarray *tzids_to_rename); -static void icalcomponent_handle_conflicting_vtimezones (icalcomponent *comp, - icalcomponent *vtimezone, - icalproperty *tzid_prop, - const char *tzid, - icalarray *tzids_to_rename); -static unsigned int icalcomponent_get_tzid_prefix_len (const char *tzid); -static void icalcomponent_rename_tzids(icalcomponent* comp, - icalarray* rename_table); -static void icalcomponent_rename_tzids_callback(icalparameter *param, - void *data); -static int icalcomponent_compare_vtimezones (icalcomponent *vtimezone1, - icalcomponent *vtimezone2); -static int icalcomponent_compare_timezone_fn (const void *elem1, - const void *elem2); - - -void icalcomponent_add_children(icalcomponent *impl, va_list args) -{ - void* vp; - - while((vp = va_arg(args, void*)) != 0) { - - assert (icalcomponent_isa_component(vp) != 0 || - icalproperty_isa_property(vp) != 0 ) ; - - if (icalcomponent_isa_component(vp) != 0 ){ - icalcomponent_add_component(impl, (icalcomponent*)vp); - - } else if (icalproperty_isa_property(vp) != 0 ){ - icalcomponent_add_property(impl, (icalproperty*)vp); - } - } -} - -static icalcomponent* -icalcomponent_new_impl (icalcomponent_kind kind) -{ - icalcomponent* comp; - - if (!icalcomponent_kind_is_valid(kind)) - return NULL; - - if ( ( comp = (icalcomponent*) malloc(sizeof(icalcomponent))) == 0) { - icalerror_set_errno(ICAL_NEWFAILED_ERROR); - return 0; - } - - strcpy(comp->id,"comp"); - - comp->kind = kind; - comp->properties = pvl_newlist(); - comp->property_iterator = 0; - comp->components = pvl_newlist(); - comp->component_iterator = 0; - comp->x_name = 0; - comp->parent = 0; - comp->timezones = NULL; - comp->timezones_sorted = 1; - - return comp; -} - -/** @brief Constructor - */ -icalcomponent* -icalcomponent_new (icalcomponent_kind kind) -{ - return icalcomponent_new_impl(kind); -} - -/** @brief Constructor - */ -icalcomponent* -icalcomponent_vanew (icalcomponent_kind kind, ...) -{ - va_list args; - - icalcomponent *impl = icalcomponent_new_impl(kind); - - if (impl == 0){ - return 0; - } - - va_start(args,kind); - icalcomponent_add_children(impl, args); - va_end(args); - - return impl; -} - -/** @brief Constructor - */ -icalcomponent* icalcomponent_new_from_string(char* str) -{ - return icalparser_parse_string(str); -} - -/** @brief Constructor - */ -icalcomponent* icalcomponent_new_clone(icalcomponent* old) -{ - icalcomponent *new; - icalproperty *p; - icalcomponent *c; - pvl_elem itr; - - icalerror_check_arg_rz( (old!=0), "component"); - - new = icalcomponent_new_impl(old->kind); - - if (new == 0){ - return 0; - } - - - for( itr = pvl_head(old->properties); - itr != 0; - itr = pvl_next(itr)) - { - p = (icalproperty*)pvl_data(itr); - icalcomponent_add_property(new,icalproperty_new_clone(p)); - } - - - for( itr = pvl_head(old->components); - itr != 0; - itr = pvl_next(itr)) - { - c = (icalcomponent*)pvl_data(itr); - icalcomponent_add_component(new,icalcomponent_new_clone(c)); - } - - return new; - -} - -/*** @brief Destructor - */ -void -icalcomponent_free (icalcomponent* c) -{ - icalproperty* prop; - icalcomponent* comp; - - icalerror_check_arg_rv( (c!=0), "component"); - -#ifdef ICAL_FREE_ON_LIST_IS_ERROR - icalerror_assert( (c->parent ==0),"Tried to free a component that is still attached to a parent component"); -#else - if(c->parent != 0){ - return; - } -#endif - - if(c != 0 ){ - - if ( c->properties != 0 ) - { - while( (prop=pvl_pop(c->properties)) != 0){ - assert(prop != 0); - icalproperty_set_parent(prop,0); - icalproperty_free(prop); - } - pvl_free(c->properties); - } - - - while( (comp=pvl_data(pvl_head(c->components))) != 0){ - assert(comp!=0); - icalcomponent_remove_component(c,comp); - icalcomponent_free(comp); - } - - pvl_free(c->components); - - if (c->x_name != 0) { - free(c->x_name); - } - - if (c->timezones) - icaltimezone_array_free (c->timezones); - - c->kind = ICAL_NO_COMPONENT; - c->properties = 0; - c->property_iterator = 0; - c->components = 0; - c->component_iterator = 0; - c->x_name = 0; - c->id[0] = 'X'; - c->timezones = NULL; - - free(c); - } -} - -char* -icalcomponent_as_ical_string (icalcomponent* impl) -{ - char* buf, *out_buf; - const char* tmp_buf; - size_t buf_size = 1024; - char* buf_ptr = 0; - pvl_elem itr; - -/* RFC 2445 explicitly says that the newline is *ALWAYS* a \r\n (CRLF)!!!! */ -char newline[] = "\r\n"; -/* WIN32 automatically adds the \r, Anybody else need it? -#ifdef ICAL_UNIX_NEWLINE - char newline[] = "\n"; -#else - char newline[] = "\r\n"; -#endif -*/ - - icalcomponent *c; - icalproperty *p; - icalcomponent_kind kind = icalcomponent_isa(impl); - - const char* kind_string; - - buf = icalmemory_new_buffer(buf_size); - buf_ptr = buf; - - icalerror_check_arg_rz( (impl!=0), "component"); - icalerror_check_arg_rz( (kind!=ICAL_NO_COMPONENT), "component kind is ICAL_NO_COMPONENT"); - - kind_string = icalcomponent_kind_to_string(kind); - - icalerror_check_arg_rz( (kind_string!=0),"Unknown kind of component"); - - icalmemory_append_string(&buf, &buf_ptr, &buf_size, "BEGIN:"); - icalmemory_append_string(&buf, &buf_ptr, &buf_size, kind_string); - icalmemory_append_string(&buf, &buf_ptr, &buf_size, newline); - - - - for( itr = pvl_head(impl->properties); - itr != 0; - itr = pvl_next(itr)) - { - p = (icalproperty*)pvl_data(itr); - - icalerror_assert((p!=0),"Got a null property"); - tmp_buf = icalproperty_as_ical_string(p); - - icalmemory_append_string(&buf, &buf_ptr, &buf_size, tmp_buf); - } - - - for( itr = pvl_head(impl->components); - itr != 0; - itr = pvl_next(itr)) - { - c = (icalcomponent*)pvl_data(itr); - - tmp_buf = icalcomponent_as_ical_string(c); - - icalmemory_append_string(&buf, &buf_ptr, &buf_size, tmp_buf); - - } - - icalmemory_append_string(&buf, &buf_ptr, &buf_size, "END:"); - icalmemory_append_string(&buf, &buf_ptr, &buf_size, - icalcomponent_kind_to_string(kind)); - icalmemory_append_string(&buf, &buf_ptr, &buf_size, newline); - icalmemory_append_string(&buf, &buf_ptr, &buf_size, newline); - - out_buf = icalmemory_tmp_copy(buf); - free(buf); - - return out_buf; -} - - -int -icalcomponent_is_valid (icalcomponent* component) -{ - if ( (strcmp(component->id,"comp") == 0) && - component->kind != ICAL_NO_COMPONENT){ - return 1; - } else { - return 0; - } - -} - - -icalcomponent_kind -icalcomponent_isa (const icalcomponent* component) -{ - icalerror_check_arg_rx( (component!=0), "component", ICAL_NO_COMPONENT); - - if(component != 0) - { - return component->kind; - } - - return ICAL_NO_COMPONENT; -} - - -int -icalcomponent_isa_component (void* component) -{ - icalcomponent *impl = component; - - icalerror_check_arg_rz( (component!=0), "component"); - - if (strcmp(impl->id,"comp") == 0) { - return 1; - } else { - return 0; - } - -} - -void -icalcomponent_add_property (icalcomponent* component, icalproperty* property) -{ - icalerror_check_arg_rv( (component!=0), "component"); - icalerror_check_arg_rv( (property!=0), "property"); - - icalerror_assert( (!icalproperty_get_parent(property)),"The property has already been added to a component. Remove the property with icalcomponent_remove_property before calling icalcomponent_add_property"); - - icalproperty_set_parent(property,component); - - pvl_push(component->properties,property); -} - - -void -icalcomponent_remove_property (icalcomponent* component, icalproperty* property) -{ - pvl_elem itr, next_itr; - - icalerror_check_arg_rv( (component!=0), "component"); - icalerror_check_arg_rv( (property!=0), "property"); - - icalerror_assert( (icalproperty_get_parent(property)),"The property is not a member of a component"); - - - for( itr = pvl_head(component->properties); - itr != 0; - itr = next_itr) - { - next_itr = pvl_next(itr); - - if( pvl_data(itr) == (void*)property ){ - - if (component->property_iterator == itr){ - component->property_iterator = pvl_next(itr); - } - - pvl_remove( component->properties, itr); - icalproperty_set_parent(property,0); - } - } -} - -int -icalcomponent_count_properties (icalcomponent* component, - icalproperty_kind kind) -{ - int count=0; - pvl_elem itr; - - icalerror_check_arg_rz( (component!=0), "component"); - - for( itr = pvl_head(component->properties); - itr != 0; - itr = pvl_next(itr)) - { - if(kind == icalproperty_isa((icalproperty*)pvl_data(itr)) || - kind == ICAL_ANY_PROPERTY){ - count++; - } - } - - - return count; - -} - -icalproperty* icalcomponent_get_current_property (icalcomponent* component) -{ - icalerror_check_arg_rz( (component!=0),"component"); - - if ((component->property_iterator==0)){ - return 0; - } - - return (icalproperty*) pvl_data(component->property_iterator); -} - -icalproperty* -icalcomponent_get_first_property (icalcomponent* c, icalproperty_kind kind) -{ - icalerror_check_arg_rz( (c!=0),"component"); - - for( c->property_iterator = pvl_head(c->properties); - c->property_iterator != 0; - c->property_iterator = pvl_next(c->property_iterator)) { - - icalproperty *p = (icalproperty*) pvl_data(c->property_iterator); - - if (icalproperty_isa(p) == kind || kind == ICAL_ANY_PROPERTY) { - - return p; - } - } - return 0; -} - -icalproperty* -icalcomponent_get_next_property (icalcomponent* c, icalproperty_kind kind) -{ - icalerror_check_arg_rz( (c!=0),"component"); - - if (c->property_iterator == 0){ - return 0; - } - - for( c->property_iterator = pvl_next(c->property_iterator); - c->property_iterator != 0; - c->property_iterator = pvl_next(c->property_iterator)) { - - icalproperty *p = (icalproperty*) pvl_data(c->property_iterator); - - if (icalproperty_isa(p) == kind || kind == ICAL_ANY_PROPERTY) { - - return p; - } - } - - return 0; -} - - -icalproperty** -icalcomponent_get_properties (icalcomponent* component, icalproperty_kind kind); - - -void -icalcomponent_add_component (icalcomponent* parent, icalcomponent* child) -{ - icalerror_check_arg_rv( (parent!=0), "parent"); - icalerror_check_arg_rv( (child!=0), "child"); - - if (child->parent !=0) { - icalerror_set_errno(ICAL_USAGE_ERROR); - } - - child->parent = parent; - - pvl_push(parent->components,child); - - /* If the new component is a VTIMEZONE, add it to our array. */ - if (child->kind == ICAL_VTIMEZONE_COMPONENT) { - /* FIXME: Currently we are also creating this array when loading in - a builtin VTIMEZONE, when we don't need it. */ - if (!parent->timezones) - parent->timezones = icaltimezone_array_new (); - - icaltimezone_array_append_from_vtimezone (parent->timezones, child); - - /* Flag that we need to sort it before doing any binary searches. */ - parent->timezones_sorted = 0; - } -} - - -void -icalcomponent_remove_component (icalcomponent* parent, icalcomponent* child) -{ - pvl_elem itr, next_itr; - - icalerror_check_arg_rv( (parent!=0), "parent"); - icalerror_check_arg_rv( (child!=0), "child"); - - /* If the component is a VTIMEZONE, remove it from our array as well. */ - if (child->kind == ICAL_VTIMEZONE_COMPONENT) { - icaltimezone *zone; - int i, num_elements; - - num_elements = parent->timezones ? parent->timezones->num_elements : 0; - for (i = 0; i < num_elements; i++) { - zone = icalarray_element_at (parent->timezones, i); - if (icaltimezone_get_component (zone) == child) { - icaltimezone_free (zone, 0); - icalarray_remove_element_at (parent->timezones, i); - break; - } - } - } - - for( itr = pvl_head(parent->components); - itr != 0; - itr = next_itr) - { - next_itr = pvl_next(itr); - - if( pvl_data(itr) == (void*)child ){ - - if (parent->component_iterator == itr){ - /* Don't let the current iterator become invalid */ - - /* HACK. The semantics for this are troubling. */ - parent->component_iterator = - pvl_next(parent->component_iterator); - - } - pvl_remove( parent->components, itr); - child->parent = 0; - break; - } - } -} - - -int -icalcomponent_count_components (icalcomponent* component, - icalcomponent_kind kind) -{ - int count=0; - pvl_elem itr; - - icalerror_check_arg_rz( (component!=0), "component"); - - for( itr = pvl_head(component->components); - itr != 0; - itr = pvl_next(itr)) - { - if(kind == icalcomponent_isa((icalcomponent*)pvl_data(itr)) || - kind == ICAL_ANY_COMPONENT){ - count++; - } - } - - return count; -} - -icalcomponent* -icalcomponent_get_current_component(icalcomponent* component) -{ - icalerror_check_arg_rz( (component!=0),"component"); - - if (component->component_iterator == 0){ - return 0; - } - - return (icalcomponent*) pvl_data(component->component_iterator); -} - -icalcomponent* -icalcomponent_get_first_component (icalcomponent* c, - icalcomponent_kind kind) -{ - icalerror_check_arg_rz( (c!=0),"component"); - - for( c->component_iterator = pvl_head(c->components); - c->component_iterator != 0; - c->component_iterator = pvl_next(c->component_iterator)) { - - icalcomponent *p = (icalcomponent*) pvl_data(c->component_iterator); - - if (icalcomponent_isa(p) == kind || kind == ICAL_ANY_COMPONENT) { - - return p; - } - } - - return 0; -} - - -icalcomponent* -icalcomponent_get_next_component (icalcomponent* c, icalcomponent_kind kind) -{ - icalerror_check_arg_rz( (c!=0),"component"); - - if (c->component_iterator == 0){ - return 0; - } - - for( c->component_iterator = pvl_next(c->component_iterator); - c->component_iterator != 0; - c->component_iterator = pvl_next(c->component_iterator)) { - - icalcomponent *p = (icalcomponent*) pvl_data(c->component_iterator); - - if (icalcomponent_isa(p) == kind || kind == ICAL_ANY_COMPONENT) { - - return p; - } - } - - return 0; -} - -icalcomponent* icalcomponent_get_first_real_component(icalcomponent *c) -{ - icalcomponent *comp; - - for(comp = icalcomponent_get_first_component(c,ICAL_ANY_COMPONENT); - comp != 0; - comp = icalcomponent_get_next_component(c,ICAL_ANY_COMPONENT)){ - - icalcomponent_kind kind = icalcomponent_isa(comp); - - if(kind == ICAL_VEVENT_COMPONENT || - kind == ICAL_VTODO_COMPONENT || - kind == ICAL_VJOURNAL_COMPONENT || - kind == ICAL_VFREEBUSY_COMPONENT || - kind == ICAL_VQUERY_COMPONENT || - kind == ICAL_VAGENDA_COMPONENT){ - return comp; - } - } - return 0; -} - - -/** @brief Get the timespan covered by this component, in UTC - * (deprecated) - * - * see icalcomponent_foreach_recurrence() for a better way to - * extract spans from an component. - * - * This method can be called on either a VCALENDAR or any real - * component. If the VCALENDAR contains no real component, but - * contains a VTIMEZONE, we return that span instead. - * This might not be a desirable behavior; we keep it for now - * for backward compatibility, but it might be deprecated at a - * future time. - * - * FIXME this API needs to be clarified. DTEND is defined as the - * first available time after the end of this event, so the span - * should actually end 1 second before DTEND. - */ - -icaltime_span icalcomponent_get_span(icalcomponent* comp) -{ - icalcomponent *inner; - icalcomponent_kind kind; - icaltime_span span; - struct icaltimetype start, end; - - span.start = 0; - span.end = 0; - span.is_busy= 1; - - /* initial Error checking */ - if (comp == NULL) { - return span; - } - - /* FIXME this might go away */ - kind = icalcomponent_isa(comp); - if(kind == ICAL_VCALENDAR_COMPONENT){ - inner = icalcomponent_get_first_real_component(comp); - - /* Maybe there is a VTIMEZONE in there */ - if (inner == 0){ - inner = icalcomponent_get_first_component(comp, - ICAL_VTIMEZONE_COMPONENT); - } - - } else { - inner = comp; - } - - if (inner == 0){ - icalerror_set_errno(ICAL_MALFORMEDDATA_ERROR); - /*icalerror_warn("icalcomponent_get_span: no component specified, or empty VCALENDAR component");*/ - return span; - } - - kind = icalcomponent_isa(inner); - - if( !( kind == ICAL_VEVENT_COMPONENT || - kind == ICAL_VJOURNAL_COMPONENT || - kind == ICAL_VTODO_COMPONENT || - kind == ICAL_VFREEBUSY_COMPONENT )) { - icalerror_set_errno(ICAL_MALFORMEDDATA_ERROR); - /*icalerror_warn("icalcomponent_get_span: no component specified, or empty VCALENDAR component");*/ - return span; - - } - - /* Get to work. starting with DTSTART */ - start = icalcomponent_get_dtstart(comp); - if (icaltime_is_null_time(start)) { - return span; - } - span.start = icaltime_as_timet_with_zone(start, - icaltimezone_get_utc_timezone()); - - /* The end time could be specified as either a DTEND or a DURATION */ - /* icalcomponent_get_dtend takes care of these cases. */ - end = icalcomponent_get_dtend(comp); - if (icaltime_is_null_time(end)) { - if (!icaltime_is_date(start)) { - /* If dtstart is a DATE-TIME and there is no DTEND nor DURATION - it takes no time */ - span.start = 0; - return span; - } else { - end = start; - } - } - - span.end = icaltime_as_timet_with_zone(end, - icaltimezone_get_utc_timezone()); - if (icaltime_is_date(start)) { - /* Until the end of the day*/ - span.end += 60*60*24 - 1; - } - - return span; - -} - -/** - * Decide if this recurrance is acceptable - * - * @param comp A valid icalcomponent. - * @param dtstart The base dtstart value for this component. - * @param recurtime The time to test against. - * - * @return true if the recurrence value is excluded, false otherwise. - * - * This function decides if a specific recurrence value is - * excluded by EXRULE or EXDATE properties. - * - * It's not the most efficient code. You might get better performance - * if you assume that recurtime is always increasing for each - * call. Then you could: - * - * - sort the EXDATE values - * - save the state of each EXRULE iterator for the next call. - * - * In this case though you don't need to worry how you call this - * function. It will always return the correct result. - */ - -int icalproperty_recurrence_is_excluded(icalcomponent *comp, - struct icaltimetype *dtstart, - struct icaltimetype *recurtime) { - icalproperty *exdate, *exrule; - - if (comp == NULL || - dtstart == NULL || - recurtime == NULL || - icaltime_is_null_time(*recurtime)) - /* BAD DATA */ - return 1; - - /** first test against the exdate values **/ - for (exdate = icalcomponent_get_first_property(comp,ICAL_EXDATE_PROPERTY); - exdate != NULL; - exdate = icalcomponent_get_next_property(comp,ICAL_EXDATE_PROPERTY)) { - - struct icaltimetype exdatetime = icalproperty_get_exdate(exdate); - - if (icaltime_compare(*recurtime, exdatetime) == 0) { - /** MATCHED **/ - return 1; - } - } - - /** Now test against the EXRULEs **/ - for (exrule = icalcomponent_get_first_property(comp,ICAL_EXRULE_PROPERTY); - exrule != NULL; - exrule = icalcomponent_get_next_property(comp,ICAL_EXRULE_PROPERTY)) { - - struct icalrecurrencetype recur = icalproperty_get_exrule(exrule); - icalrecur_iterator *exrule_itr = icalrecur_iterator_new(recur, *dtstart); - struct icaltimetype exrule_time; - - while (1) { - int result; - exrule_time = icalrecur_iterator_next(exrule_itr); - - if (icaltime_is_null_time(exrule_time)) - break; - - result = icaltime_compare(*recurtime, exrule_time); - if (result == 0) { - icalrecur_iterator_free(exrule_itr); - return 1; /** MATCH **/ - } - if (result == 1) - break; /** exrule_time > recurtime **/ - } - - icalrecur_iterator_free(exrule_itr); - } - - return 0; /** no matches **/ -} - -/** - * @brief Return the busy status based on the TRANSP property. - * - * @param comp A valid icalcomponent. - * - * @return 1 if the event is a busy item, 0 if it is not. - */ - -static int icalcomponent_is_busy(icalcomponent *comp) { - icalproperty *transp; - enum icalproperty_status status; - int ret = 1; - - /** @todo check access control here, converting busy->free if the - permissions do not allow access... */ - - /* Is this a busy time? Check the TRANSP property */ - transp = icalcomponent_get_first_property(comp, ICAL_TRANSP_PROPERTY); - - if (transp) { - icalvalue *transp_val = icalproperty_get_value(transp); - - switch (icalvalue_get_transp(transp_val)) { - case ICAL_TRANSP_OPAQUE: - case ICAL_TRANSP_OPAQUENOCONFLICT: - case ICAL_TRANSP_NONE: - ret = 1; - break; - case ICAL_TRANSP_TRANSPARENT: - case ICAL_TRANSP_TRANSPARENTNOCONFLICT: - ret = 0; - break; - default: - ret = 0; - break; - } - } - status = icalcomponent_get_status(comp); - if (ret && status) { - switch (status) { - case ICAL_STATUS_CANCELLED: - case ICAL_STATUS_TENTATIVE: - ret = 0; - break; - default: - break; - } - } - return(ret); -} - - - - -/** - * @brief cycle through all recurrances of an event - * - * @param comp A valid VEVENT component - * @param start Ignore timespans before this - * @param end Ignore timespans after this - * @param callback Function called for each timespan within the range - * @param callback_data Pointer passed back to the callback function - * - * This function will call the specified callback function for once - * for the base value of DTSTART, and foreach recurring date/time - * value. - * - * It will filter out events that are specified as an EXDATE or an EXRULE. - * - * @todo We do not filter out duplicate RRULES/RDATES - * @todo We do not handle RDATEs with explicit periods - */ - -void icalcomponent_foreach_recurrence(icalcomponent* comp, - struct icaltimetype start, - struct icaltimetype end, - void (*callback)(icalcomponent *comp, - struct icaltime_span *span, - void *data), - void *callback_data) -{ - struct icaltimetype dtstart, dtend; - icaltime_span recurspan, basespan, limit_span; - time_t limit_start, limit_end; - int dtduration; - icalproperty *rrule, *rdate; - struct icaldurationtype dur; - pvl_elem property_iterator; /* for saving the iterator */ - - if (comp == NULL || callback == NULL) - return; - - dtstart = icalcomponent_get_dtstart(comp); - - if (icaltime_is_null_time(dtstart)) - return; - - - /* The end time could be specified as either a DTEND or a DURATION */ - /* icalcomponent_get_dtend takes care of these cases. */ - dtend = icalcomponent_get_dtend(comp); - - /* Now set up the base span for this item, corresponding to the - base DTSTART and DTEND */ - basespan = icaltime_span_new(dtstart, dtend, 1); - - basespan.is_busy = icalcomponent_is_busy(comp); - - - /** Calculate the ceiling and floor values.. **/ - limit_start = icaltime_as_timet_with_zone(start, icaltimezone_get_utc_timezone()); - if (!icaltime_is_null_time(end)) - limit_end = icaltime_as_timet_with_zone(end, icaltimezone_get_utc_timezone()); - else - limit_end = INT_MAX; /* max 32 bit time_t */ - - limit_span.start = limit_start; - limit_span.end = limit_end; - - - /* Do the callback for the initial DTSTART entry */ - - if (!icalproperty_recurrence_is_excluded(comp, &dtstart, &dtstart)) { - /** call callback action **/ - if (icaltime_span_overlaps(&basespan, &limit_span)) - (*callback) (comp, &basespan, callback_data); - } - - recurspan = basespan; - dtduration = basespan.end - basespan.start; - - /* Now cycle through the rrule entries */ - for (rrule = icalcomponent_get_first_property(comp,ICAL_RRULE_PROPERTY); - rrule != NULL; - rrule = icalcomponent_get_next_property(comp,ICAL_RRULE_PROPERTY)) { - - struct icalrecurrencetype recur = icalproperty_get_rrule(rrule); - icalrecur_iterator *rrule_itr = icalrecur_iterator_new(recur, dtstart); - struct icaltimetype rrule_time = icalrecur_iterator_next(rrule_itr); - /** note that icalrecur_iterator_next always returns dtstart - the first time.. **/ - - while (1) { - rrule_time = icalrecur_iterator_next(rrule_itr); - - if (icaltime_is_null_time(rrule_time)) - break; - - dur = icaltime_subtract(rrule_time, dtstart); - - recurspan.start = basespan.start + icaldurationtype_as_int(dur); - recurspan.end = recurspan.start + dtduration; - - /** save the iterator ICK! **/ - property_iterator = comp->property_iterator; - - if (!icalproperty_recurrence_is_excluded(comp, &dtstart, &rrule_time)) { - /** call callback action **/ - if (icaltime_span_overlaps(&recurspan, &limit_span)) - (*callback) (comp, &recurspan, callback_data); - } - comp->property_iterator = property_iterator; - } /* end of iteration over a specific RRULE */ - - icalrecur_iterator_free(rrule_itr); - } /* end of RRULE loop */ - - - /** Now process RDATE entries **/ - for (rdate = icalcomponent_get_first_property(comp,ICAL_RDATE_PROPERTY); - rdate != NULL; - rdate = icalcomponent_get_next_property(comp,ICAL_RDATE_PROPERTY)) { - - struct icaldatetimeperiodtype rdate_period = icalproperty_get_rdate(rdate); - - /** RDATES can specify raw datetimes, periods, or dates. - we only support raw datetimes for now.. - - @todo Add support for other types **/ - - if (icaltime_is_null_time(rdate_period.time)) - continue; - - dur = icaltime_subtract(rdate_period.time, dtstart); - - recurspan.start = basespan.start + icaldurationtype_as_int(dur); - recurspan.end = recurspan.start + dtduration; - - /** save the iterator ICK! **/ - property_iterator = comp->property_iterator; - - if (!icalproperty_recurrence_is_excluded(comp, &dtstart, &rdate_period.time)) { - /** call callback action **/ - (*callback) (comp, &recurspan, callback_data); - } - comp->property_iterator = property_iterator; - } -} - - - -int icalcomponent_check_restrictions(icalcomponent* comp){ - icalerror_check_arg_rz(comp!=0,"comp"); - return icalrestriction_check(comp); -} - -/** @brief returns the number of errors encountered parsing the data - * - * This function counts the number times the X-LIC-ERROR occurs - * in the data structure. - */ - -int icalcomponent_count_errors(icalcomponent* component) -{ - int errors = 0; - icalproperty *p; - icalcomponent *c; - pvl_elem itr; - - for( itr = pvl_head(component->properties); - itr != 0; - itr = pvl_next(itr)) - { - p = (icalproperty*)pvl_data(itr); - - if(icalproperty_isa(p) == ICAL_XLICERROR_PROPERTY) - { - errors++; - } - } - - - for( itr = pvl_head(component->components); - itr != 0; - itr = pvl_next(itr)) - { - c = (icalcomponent*)pvl_data(itr); - - errors += icalcomponent_count_errors(c); - - } - - return errors; -} - - -void icalcomponent_strip_errors(icalcomponent* component) -{ - icalproperty *p; - icalcomponent *c; - pvl_elem itr, next_itr; - - for( itr = pvl_head(component->properties); - itr != 0; - itr = next_itr) - { - p = (icalproperty*)pvl_data(itr); - next_itr = pvl_next(itr); - - if(icalproperty_isa(p) == ICAL_XLICERROR_PROPERTY) - { - icalcomponent_remove_property(component,p); - } - } - - for( itr = pvl_head(component->components); - itr != 0; - itr = pvl_next(itr)) - { - c = (icalcomponent*)pvl_data(itr); - icalcomponent_strip_errors(c); - } -} - -/* Hack. This will change the state of the iterators */ -void icalcomponent_convert_errors(icalcomponent* component) -{ - icalproperty *p, *next_p; - icalcomponent *c; - - for(p = icalcomponent_get_first_property(component,ICAL_ANY_PROPERTY); - p != 0; - p = next_p){ - - next_p = icalcomponent_get_next_property(component,ICAL_ANY_PROPERTY); - - if(icalproperty_isa(p) == ICAL_XLICERROR_PROPERTY) - { - struct icalreqstattype rst; - icalparameter *param = icalproperty_get_first_parameter - (p,ICAL_XLICERRORTYPE_PARAMETER); - - rst.code = ICAL_UNKNOWN_STATUS; - rst.desc = 0; - - switch(icalparameter_get_xlicerrortype(param)){ - - case ICAL_XLICERRORTYPE_PARAMETERNAMEPARSEERROR: { - rst.code = ICAL_3_2_INVPARAM_STATUS; - break; - } - case ICAL_XLICERRORTYPE_PARAMETERVALUEPARSEERROR: { - rst.code = ICAL_3_3_INVPARAMVAL_STATUS; - break; - } - case ICAL_XLICERRORTYPE_PROPERTYPARSEERROR: { - rst.code = ICAL_3_0_INVPROPNAME_STATUS; - break; - } - case ICAL_XLICERRORTYPE_VALUEPARSEERROR: { - rst.code = ICAL_3_1_INVPROPVAL_STATUS; - break; - } - case ICAL_XLICERRORTYPE_COMPONENTPARSEERROR: { - rst.code = ICAL_3_4_INVCOMP_STATUS; - break; - } - - default: { - break; - } - } - if (rst.code != ICAL_UNKNOWN_STATUS){ - - rst.debug = icalproperty_get_xlicerror(p); - icalcomponent_add_property(component, - icalproperty_new_requeststatus(rst)); - - icalcomponent_remove_property(component,p); - } - } - } - - for(c = icalcomponent_get_first_component(component,ICAL_ANY_COMPONENT); - c != 0; - c = icalcomponent_get_next_component(component,ICAL_ANY_COMPONENT)){ - - icalcomponent_convert_errors(c); - } -} - - -icalcomponent* icalcomponent_get_parent(icalcomponent* component) -{ - return component->parent; -} - -void icalcomponent_set_parent(icalcomponent* component, icalcomponent* parent) -{ - component->parent = parent; -} - -icalcompiter icalcompiter_null = {ICAL_NO_COMPONENT,0}; - - -struct icalcomponent_kind_map { - icalcomponent_kind kind; - char name[20]; -}; - - - -static struct icalcomponent_kind_map component_map[] = -{ - { ICAL_VEVENT_COMPONENT, "VEVENT" }, - { ICAL_VTODO_COMPONENT, "VTODO" }, - { ICAL_VJOURNAL_COMPONENT, "VJOURNAL" }, - { ICAL_VCALENDAR_COMPONENT, "VCALENDAR" }, - { ICAL_VAGENDA_COMPONENT, "VAGENDA" }, - { ICAL_VFREEBUSY_COMPONENT, "VFREEBUSY" }, - { ICAL_VTIMEZONE_COMPONENT, "VTIMEZONE" }, - { ICAL_VALARM_COMPONENT, "VALARM" }, - { ICAL_XSTANDARD_COMPONENT, "STANDARD" }, /*These are part of RFC2445 */ - { ICAL_XDAYLIGHT_COMPONENT, "DAYLIGHT" }, /*but are not really components*/ - { ICAL_X_COMPONENT, "X" }, - { ICAL_VSCHEDULE_COMPONENT, "SCHEDULE" }, - - /* CAP components */ - { ICAL_VQUERY_COMPONENT, "VQUERY" }, - { ICAL_VCAR_COMPONENT, "VCAR" }, - { ICAL_VCOMMAND_COMPONENT, "VCOMMAND" }, - - /* libical private components */ - { ICAL_XLICINVALID_COMPONENT, "X-LIC-UNKNOWN" }, - { ICAL_XLICMIMEPART_COMPONENT, "X-LIC-MIME-PART" }, - { ICAL_ANY_COMPONENT, "ANY" }, - { ICAL_XROOT_COMPONENT, "XROOT" }, - - /* End of list */ - { ICAL_NO_COMPONENT, "" }, -}; - - -int icalcomponent_kind_is_valid(const icalcomponent_kind kind) -{ - int i = 0; - do { - if (component_map[i].kind == kind) - return 1; - } while (component_map[i++].kind != ICAL_NO_COMPONENT); - - return 0; -} - -const char* icalcomponent_kind_to_string(icalcomponent_kind kind) -{ - int i; - - for (i=0; component_map[i].kind != ICAL_NO_COMPONENT; i++) { - if (component_map[i].kind == kind) { - return component_map[i].name; - } - } - - return 0; - -} - -icalcomponent_kind icalcomponent_string_to_kind(const char* string) -{ - int i; - - if (string ==0 ) { - return ICAL_NO_COMPONENT; - } - - for (i=0; component_map[i].kind != ICAL_NO_COMPONENT; i++) { - if (strcasecmp(component_map[i].name, string) == 0) { - return component_map[i].kind; - } - } - - return ICAL_NO_COMPONENT; -} - - - -icalcompiter -icalcomponent_begin_component(icalcomponent* component,icalcomponent_kind kind) -{ - icalcompiter itr; - pvl_elem i; - - itr.kind = kind; - itr.iter = NULL; - - icalerror_check_arg_re(component!=0,"component",icalcompiter_null); - - for( i = pvl_head(component->components); i != 0; i = pvl_next(i)) { - - icalcomponent *c = (icalcomponent*) pvl_data(i); - - if (icalcomponent_isa(c) == kind || kind == ICAL_ANY_COMPONENT) { - - itr.iter = i; - - return itr; - } - } - - return icalcompiter_null; -} - -icalcompiter -icalcomponent_end_component(icalcomponent* component,icalcomponent_kind kind) -{ - icalcompiter itr; - pvl_elem i; - - itr.kind = kind; - - icalerror_check_arg_re(component!=0,"component",icalcompiter_null); - - for( i = pvl_tail(component->components); i != 0; i = pvl_prior(i)) { - - icalcomponent *c = (icalcomponent*) pvl_data(i); - - if (icalcomponent_isa(c) == kind || kind == ICAL_ANY_COMPONENT) { - - itr.iter = pvl_next(i); - - return itr; - } - } - - return icalcompiter_null;; -} - - -icalcomponent* icalcompiter_next(icalcompiter* i) -{ - if (i->iter == 0){ - return 0; - } - - icalerror_check_arg_rz( (i!=0),"i"); - - for( i->iter = pvl_next(i->iter); - i->iter != 0; - i->iter = pvl_next(i->iter)) { - - icalcomponent *c = (icalcomponent*) pvl_data(i->iter); - - if (icalcomponent_isa(c) == i->kind - || i->kind == ICAL_ANY_COMPONENT) { - - return icalcompiter_deref(i);; - } - } - - return 0; - -} - -icalcomponent* icalcompiter_prior(icalcompiter* i) -{ - if (i->iter == 0){ - return 0; - } - - for( i->iter = pvl_prior(i->iter); - i->iter != 0; - i->iter = pvl_prior(i->iter)) { - - icalcomponent *c = (icalcomponent*) pvl_data(i->iter); - - if (icalcomponent_isa(c) == i->kind - || i->kind == ICAL_ANY_COMPONENT) { - - return icalcompiter_deref(i);; - } - } - - return 0; - -} -icalcomponent* icalcompiter_deref(icalcompiter* i) -{ - if(i->iter ==0){ - return 0; - } - - return pvl_data(i->iter); -} - -icalcomponent* icalcomponent_get_inner(icalcomponent* comp) -{ - if (icalcomponent_isa(comp) == ICAL_VCALENDAR_COMPONENT){ - return icalcomponent_get_first_real_component(comp); - } else { - return comp; - } -} - -/** @brief sets the METHOD property to the given method - */ - -void icalcomponent_set_method(icalcomponent* comp, icalproperty_method method) -{ - icalproperty *prop - = icalcomponent_get_first_property(comp, ICAL_METHOD_PROPERTY); - - - if (prop == 0){ - prop = icalproperty_new_method(method); - icalcomponent_add_property(comp, prop); - } - - icalproperty_set_method(prop,method); - -} - -/** @brief returns the METHOD property - */ - -icalproperty_method icalcomponent_get_method(icalcomponent* comp) -{ - icalproperty *prop - = icalcomponent_get_first_property(comp,ICAL_METHOD_PROPERTY); - - if (prop == 0){ - return ICAL_METHOD_NONE; - } - - return icalproperty_get_method(prop); -} - -#define ICALSETUPSET(p_kind) \ - icalcomponent *inner; \ - icalproperty *prop; \ - icalerror_check_arg_rv(comp!=0,"comp");\ - inner = icalcomponent_get_inner(comp); \ - if(inner == 0){\ - icalerror_set_errno(ICAL_MALFORMEDDATA_ERROR);\ - return;\ - }\ - prop = icalcomponent_get_first_property(inner, p_kind); - - -/** @brief Set DTSTART property to given icaltime - * - * This method respects the icaltime type (DATE vs DATE-TIME) and - * timezone (or lack thereof). - */ -void icalcomponent_set_dtstart(icalcomponent* comp, struct icaltimetype v) -{ - const char *tzid; - ICALSETUPSET(ICAL_DTSTART_PROPERTY); - - if (prop == 0){ - prop = icalproperty_new_dtstart(v); - icalcomponent_add_property(inner, prop); - } else { - icalproperty_remove_parameter_by_kind(prop, ICAL_TZID_PARAMETER); - } - - icalproperty_set_dtstart(prop,v); - - if ((tzid = icaltime_get_tzid(v)) != NULL && !icaltime_is_utc(v)) { - icalproperty_add_parameter(prop, icalparameter_new_tzid(tzid)); - } -} - -/** @brief Get a DATE or DATE-TIME property as an icaltime - * - * If the property is a DATE-TIME with a timezone parameter and a - * corresponding VTIMEZONE is present in the component, the - * returned component will already be in the correct timezone; - * otherwise the caller is responsible for converting it. - * - * FIXME this is useless until we can flag the failure - */ -static struct icaltimetype -icalcomponent_get_datetime(icalcomponent *comp, icalproperty *prop) { - - icalparameter *param; - struct icaltimetype ret; - - ret = icalvalue_get_datetime(icalproperty_get_value(prop)); - - if ((param = icalproperty_get_first_parameter(prop, ICAL_TZID_PARAMETER)) - != NULL) { - const char *tzid = icalparameter_get_tzid(param); - icaltimezone *tz; - - if ((tz = icalcomponent_get_timezone(comp, tzid)) != NULL) { - icaltime_set_timezone(&ret, tz); - } - } - - return ret; -} - -/** @brief Get DTSTART property as an icaltime - * - * If DTSTART is a DATE-TIME with a timezone parameter and a - * corresponding VTIMEZONE is present in the component, the - * returned component will already be in the correct timezone; - * otherwise the caller is responsible for converting it. - * - * FIXME this is useless until we can flag the failure - */ -struct icaltimetype icalcomponent_get_dtstart(icalcomponent* comp) -{ - icalcomponent *inner = icalcomponent_get_inner(comp); - icalproperty *prop; - - prop = icalcomponent_get_first_property(inner,ICAL_DTSTART_PROPERTY); - if (prop == 0){ - return icaltime_null_time(); - } - - return icalcomponent_get_datetime(comp, prop); -} - -/** @brief Get DTEND property as an icaltime - * - * If a DTEND property is not present but a DURATION is, we use - * that to determine the proper end. - * - * If DTSTART is a DATE-TIME with a timezone parameter and a - * corresponding VTIMEZONE is present in the component, the - * returned component will already be in the correct timezone; - * otherwise the caller is responsible for converting it. - * - * FIXME this is useless until we can flag the failure - */ -struct icaltimetype icalcomponent_get_dtend(icalcomponent* comp) -{ - icalcomponent *inner = icalcomponent_get_inner(comp); - icalproperty *end_prop - = icalcomponent_get_first_property(inner,ICAL_DTEND_PROPERTY); - icalproperty *dur_prop - = icalcomponent_get_first_property(inner, ICAL_DURATION_PROPERTY); - struct icaltimetype ret = icaltime_null_time(); - - if ( end_prop != 0) { - ret = icalcomponent_get_datetime(comp, end_prop); - } else if ( dur_prop != 0) { - - struct icaltimetype start = - icalcomponent_get_dtstart(inner); - struct icaldurationtype duration = - icalproperty_get_duration(dur_prop); - - struct icaltimetype end = icaltime_add(start,duration); - - ret = end; - } - - return ret; -} - -/** @brief Set DTEND property to given icaltime - * - * This method respects the icaltime type (DATE vs DATE-TIME) and - * timezone (or lack thereof). - * - * This also checks that a DURATION property isn't already there, - * and returns an error if it is. It's the caller's responsibility - * to remove it. - */ -void icalcomponent_set_dtend(icalcomponent* comp, struct icaltimetype v) -{ - const char *tzid; - ICALSETUPSET(ICAL_DTEND_PROPERTY); - - if (icalcomponent_get_first_property(inner,ICAL_DURATION_PROPERTY) - != NULL) { - icalerror_set_errno(ICAL_MALFORMEDDATA_ERROR); - return; - } - - if (prop == 0) { - prop = icalproperty_new_dtend(v); - icalcomponent_add_property(inner, prop); - } else { - icalproperty_remove_parameter_by_kind(prop, ICAL_TZID_PARAMETER); - } - - icalproperty_set_dtend(prop,v); - - if ((tzid = icaltime_get_tzid(v)) != NULL && !icaltime_is_utc(v)) { - icalproperty_add_parameter(prop, icalparameter_new_tzid(tzid)); - } -} - -/** @brief Set DURATION property to given icalduration - * - * This method respects the icaltime type (DATE vs DATE-TIME) and - * timezone (or lack thereof). - * - * This also checks that a DTEND property isn't already there, - * and returns an error if it is. It's the caller's responsibility - * to remove it. - */ -void icalcomponent_set_duration(icalcomponent* comp, - struct icaldurationtype v) -{ - ICALSETUPSET(ICAL_DURATION_PROPERTY); - - if (icalcomponent_get_first_property(inner,ICAL_DTEND_PROPERTY) != NULL) { - icalerror_set_errno(ICAL_MALFORMEDDATA_ERROR); - return; - } - - if (prop == 0) { - prop = icalproperty_new_duration(v); - icalcomponent_add_property(inner, prop); - } else { - icalproperty_set_duration(prop,v); - } -} - -/** @brief Get DURATION property as an icalduration - * - * If a DURATION property is not present but a DTEND is, we use - * that to determine the proper end. - */ -struct icaldurationtype icalcomponent_get_duration(icalcomponent* comp) -{ - icalcomponent *inner = icalcomponent_get_inner(comp); - - icalproperty *end_prop - = icalcomponent_get_first_property(inner,ICAL_DTEND_PROPERTY); - - icalproperty *dur_prop - = icalcomponent_get_first_property(inner,ICAL_DURATION_PROPERTY); - - struct icaldurationtype ret = icaldurationtype_null_duration(); - - if ( dur_prop != 0 && end_prop == 0) { - ret = icalproperty_get_duration(dur_prop); - - } else if ( end_prop != 0 && dur_prop == 0) { - /** - * FIXME - * We assume DTSTART and DTEND are not in different time zones. - * Does the standard actually guarantee this? - */ - struct icaltimetype start = - icalcomponent_get_dtstart(inner); - struct icaltimetype end = - icalcomponent_get_dtend(inner); - - ret = icaltime_subtract(end, start); - } else { - /* Error, both duration and dtend have been specified */ - icalerror_set_errno(ICAL_MALFORMEDDATA_ERROR); - } - return ret; -} - -void icalcomponent_set_dtstamp(icalcomponent* comp, struct icaltimetype v) -{ - - ICALSETUPSET(ICAL_DTSTAMP_PROPERTY); - - if (prop == 0){ - prop = icalproperty_new_dtstamp(v); - icalcomponent_add_property(inner, prop); - } - - icalproperty_set_dtstamp(prop,v); - -} - - -struct icaltimetype icalcomponent_get_dtstamp(icalcomponent* comp) -{ - icalcomponent *inner = icalcomponent_get_inner(comp); - icalproperty *prop - = icalcomponent_get_first_property(inner,ICAL_DTSTAMP_PROPERTY); - - if (prop == 0){ - return icaltime_null_time(); - } - - return icalproperty_get_dtstamp(prop); -} - - -void icalcomponent_set_summary(icalcomponent* comp, const char* v) -{ - ICALSETUPSET(ICAL_SUMMARY_PROPERTY) - - if (prop == 0){ - prop = icalproperty_new_summary(v); - icalcomponent_add_property(inner, prop); - } - - icalproperty_set_summary(prop,v); -} - - -const char* icalcomponent_get_summary(icalcomponent* comp) -{ - icalcomponent *inner; - icalproperty *prop; - icalerror_check_arg_rz(comp!=0,"comp"); - - inner = icalcomponent_get_inner(comp); - - if(inner == 0){ - icalerror_set_errno(ICAL_MALFORMEDDATA_ERROR); - return 0; - } - - prop= icalcomponent_get_first_property(inner,ICAL_SUMMARY_PROPERTY); - - if (prop == 0){ - return 0; - } - - return icalproperty_get_summary(prop); - -} - -void icalcomponent_set_comment(icalcomponent* comp, const char* v) -{ - ICALSETUPSET(ICAL_COMMENT_PROPERTY); - - if (prop == 0){ - prop = icalproperty_new_comment(v); - icalcomponent_add_property(inner, prop); - } - - icalproperty_set_summary(prop,v); - -} -const char* icalcomponent_get_comment(icalcomponent* comp){ - icalcomponent *inner; - icalproperty *prop; - icalerror_check_arg_rz(comp!=0,"comp"); - - inner = icalcomponent_get_inner(comp); - - if(inner == 0){ - icalerror_set_errno(ICAL_MALFORMEDDATA_ERROR); - return 0; - } - - prop= icalcomponent_get_first_property(inner,ICAL_COMMENT_PROPERTY); - - if (prop == 0){ - return 0; - } - - return icalproperty_get_comment(prop); -} - -void icalcomponent_set_uid(icalcomponent* comp, const char* v) -{ - ICALSETUPSET(ICAL_UID_PROPERTY); - - if (prop == 0){ - prop = icalproperty_new_uid(v); - icalcomponent_add_property(inner, prop); - } - - icalproperty_set_summary(prop,v); - -} -const char* icalcomponent_get_uid(icalcomponent* comp){ - icalcomponent *inner; - icalproperty *prop; - icalerror_check_arg_rz(comp!=0,"comp"); - - inner = icalcomponent_get_inner(comp); - - if(inner == 0){ - icalerror_set_errno(ICAL_MALFORMEDDATA_ERROR); - return 0; - } - - prop= icalcomponent_get_first_property(inner,ICAL_UID_PROPERTY); - - if (prop == 0){ - return 0; - } - - return icalproperty_get_uid(prop); -} - -void icalcomponent_set_recurrenceid(icalcomponent* comp, struct icaltimetype v) -{ - ICALSETUPSET(ICAL_RECURRENCEID_PROPERTY); - - if (prop == 0){ - prop = icalproperty_new_recurrenceid(v); - icalcomponent_add_property(inner, prop); - } - - icalproperty_set_recurrenceid(prop,v); -} -struct icaltimetype icalcomponent_get_recurrenceid(icalcomponent* comp) -{ - icalcomponent *inner; - icalproperty *prop; - if (comp == 0) { - icalerror_set_errno(ICAL_BADARG_ERROR); - return icaltime_null_time(); - } - - inner = icalcomponent_get_inner(comp); - - if(inner == 0){ - icalerror_set_errno(ICAL_MALFORMEDDATA_ERROR); - return icaltime_null_time(); - } - - prop= icalcomponent_get_first_property(inner, ICAL_RECURRENCEID_PROPERTY); - - if (prop == 0){ - return icaltime_null_time(); - } - - return icalproperty_get_recurrenceid(prop); -} - -void icalcomponent_set_description(icalcomponent* comp, const char* v) -{ - ICALSETUPSET(ICAL_DESCRIPTION_PROPERTY); - - if (prop == 0){ - prop = icalproperty_new_description(v); - icalcomponent_add_property(inner, prop); - } - - icalproperty_set_description(prop,v); -} -const char* icalcomponent_get_description(icalcomponent* comp) -{ - icalcomponent *inner; - icalproperty *prop; - icalerror_check_arg_rz(comp!=0,"comp"); - - inner = icalcomponent_get_inner(comp); - - if(inner == 0){ - icalerror_set_errno(ICAL_MALFORMEDDATA_ERROR); - return 0; - } - - prop= icalcomponent_get_first_property(inner,ICAL_DESCRIPTION_PROPERTY); - - if (prop == 0){ - return 0; - } - - return icalproperty_get_description(prop); -} - -void icalcomponent_set_location(icalcomponent* comp, const char* v) -{ - ICALSETUPSET(ICAL_LOCATION_PROPERTY) - - if (prop == 0){ - prop = icalproperty_new_location(v); - icalcomponent_add_property(inner, prop); - } - - icalproperty_set_location(prop,v); -} -const char* icalcomponent_get_location(icalcomponent* comp) -{ - icalcomponent *inner; - icalproperty *prop; - icalerror_check_arg_rz(comp!=0,"comp"); - - inner = icalcomponent_get_inner(comp); - - if(inner == 0){ - icalerror_set_errno(ICAL_MALFORMEDDATA_ERROR); - return 0; - } - - prop= icalcomponent_get_first_property(inner,ICAL_LOCATION_PROPERTY); - - if (prop == 0){ - return 0; - } - - return icalproperty_get_location(prop); -} - -void icalcomponent_set_sequence(icalcomponent* comp, int v) -{ - ICALSETUPSET(ICAL_SEQUENCE_PROPERTY); - - if (prop == 0){ - prop = icalproperty_new_sequence(v); - icalcomponent_add_property(inner, prop); - } - - icalproperty_set_sequence(prop,v); - -} -int icalcomponent_get_sequence(icalcomponent* comp){ - icalcomponent *inner; - icalproperty *prop; - icalerror_check_arg_rz(comp!=0,"comp"); - - inner = icalcomponent_get_inner(comp); - - if(inner == 0){ - icalerror_set_errno(ICAL_MALFORMEDDATA_ERROR); - return 0; - } - - prop= icalcomponent_get_first_property(inner,ICAL_SEQUENCE_PROPERTY); - - if (prop == 0){ - return 0; - } - - return icalproperty_get_sequence(prop); -} - - -void icalcomponent_set_status(icalcomponent* comp, enum icalproperty_status v) -{ - ICALSETUPSET(ICAL_STATUS_PROPERTY); - - if (prop == 0){ - prop = icalproperty_new_status(v); - icalcomponent_add_property(inner, prop); - } - - icalproperty_set_status(prop,v); - -} -enum icalproperty_status icalcomponent_get_status(icalcomponent* comp){ - icalcomponent *inner; - icalproperty *prop; - icalerror_check_arg_rz(comp!=0,"comp"); - - inner = icalcomponent_get_inner(comp); - - if(inner == 0){ - icalerror_set_errno(ICAL_MALFORMEDDATA_ERROR); - return 0; - } - - prop= icalcomponent_get_first_property(inner,ICAL_STATUS_PROPERTY); - - if (prop == 0){ - return 0; - } - - return icalproperty_get_status(prop); -} - -icalcomponent* icalcomponent_new_vcalendar() -{ - return icalcomponent_new(ICAL_VCALENDAR_COMPONENT); -} -icalcomponent* icalcomponent_new_vevent() -{ - return icalcomponent_new(ICAL_VEVENT_COMPONENT); -} -icalcomponent* icalcomponent_new_vtodo() -{ - return icalcomponent_new(ICAL_VTODO_COMPONENT); -} -icalcomponent* icalcomponent_new_vjournal() -{ - return icalcomponent_new(ICAL_VJOURNAL_COMPONENT); -} -icalcomponent* icalcomponent_new_valarm() -{ - return icalcomponent_new(ICAL_VALARM_COMPONENT); -} -icalcomponent* icalcomponent_new_vfreebusy() -{ - return icalcomponent_new(ICAL_VFREEBUSY_COMPONENT); -} -icalcomponent* icalcomponent_new_vtimezone() -{ - return icalcomponent_new(ICAL_VTIMEZONE_COMPONENT); -} -icalcomponent* icalcomponent_new_xstandard() -{ - return icalcomponent_new(ICAL_XSTANDARD_COMPONENT); -} -icalcomponent* icalcomponent_new_xdaylight() -{ - return icalcomponent_new(ICAL_XDAYLIGHT_COMPONENT); -} -icalcomponent* icalcomponent_new_vagenda() -{ - return icalcomponent_new(ICAL_VAGENDA_COMPONENT); -} -icalcomponent* icalcomponent_new_vquery() -{ - return icalcomponent_new(ICAL_VQUERY_COMPONENT); -} - -/* - * Timezone stuff. - */ - - -/** - * This takes 2 VCALENDAR components and merges the second one into the first, - * resolving any problems with conflicting TZIDs. comp_to_merge will no - * longer exist after calling this function. - */ -void icalcomponent_merge_component(icalcomponent* comp, - icalcomponent* comp_to_merge) -{ - icalcomponent *subcomp, *next_subcomp; - icalarray *tzids_to_rename; - unsigned int i; - - /* Check that both components are VCALENDAR components. */ - assert (icalcomponent_isa(comp) == ICAL_VCALENDAR_COMPONENT); - assert (icalcomponent_isa(comp_to_merge) == ICAL_VCALENDAR_COMPONENT); - - /* Step through each subcomponent of comp_to_merge, looking for VTIMEZONEs. - For each VTIMEZONE found, check if we need to add it to comp and if we - need to rename it and all TZID references to it. */ - tzids_to_rename = icalarray_new (sizeof (char*), 16); - subcomp = icalcomponent_get_first_component (comp_to_merge, - ICAL_VTIMEZONE_COMPONENT); - while (subcomp) { - next_subcomp = icalcomponent_get_next_component (comp_to_merge, - ICAL_VTIMEZONE_COMPONENT); - /* This will add the VTIMEZONE to comp, if necessary, and also update - the array of TZIDs we need to rename. */ - icalcomponent_merge_vtimezone (comp, subcomp, tzids_to_rename); - /* FIXME: Handle possible NEWFAILED error. */ - - subcomp = next_subcomp; - } - - /* If we need to do any renaming of TZIDs, do it now. */ - if (tzids_to_rename->num_elements != 0) { - icalcomponent_rename_tzids (comp_to_merge, tzids_to_rename); - - /* Now free the tzids_to_rename array. */ - for (i = 0; i < tzids_to_rename->num_elements; i++) { - free (icalarray_element_at (tzids_to_rename, i)); - } - icalarray_free (tzids_to_rename); - } - - /* Now move all the components from comp_to_merge to comp, excluding - VTIMEZONE components. */ - subcomp = icalcomponent_get_first_component (comp_to_merge, - ICAL_ANY_COMPONENT); - while (subcomp) { - next_subcomp = icalcomponent_get_next_component (comp_to_merge, - ICAL_ANY_COMPONENT); - if (icalcomponent_isa(subcomp) != ICAL_VTIMEZONE_COMPONENT) { - icalcomponent_remove_component (comp_to_merge, subcomp); - icalcomponent_add_component (comp, subcomp); - } - subcomp = next_subcomp; - } - - /* Free comp_to_merge. We have moved most of the subcomponents over to - comp now. */ - icalcomponent_free (comp_to_merge); -} - - -static void icalcomponent_merge_vtimezone (icalcomponent *comp, - icalcomponent *vtimezone, - icalarray *tzids_to_rename) -{ - icalproperty *tzid_prop; - const char *tzid; - char *tzid_copy; - icaltimezone *existing_vtimezone; - - /* Get the TZID of the VTIMEZONE. */ - tzid_prop = icalcomponent_get_first_property (vtimezone, ICAL_TZID_PROPERTY); - if (!tzid_prop) - return; - - tzid = icalproperty_get_tzid (tzid_prop); - if (!tzid) - return; - - /* See if there is already a VTIMEZONE in comp with the same TZID. */ - existing_vtimezone = icalcomponent_get_timezone (comp, tzid); - - /* If there is no existing VTIMEZONE with the same TZID, we can just move - the VTIMEZONE to comp and return. */ - if (!existing_vtimezone) { - icalcomponent_remove_component (icalcomponent_get_parent (vtimezone), - vtimezone); - icalcomponent_add_component (comp, vtimezone); - return; - } - - /* If the TZID has a '/' prefix, then we don't have to worry about the - clashing TZIDs, as they are supposed to be exactly the same VTIMEZONE. */ - if (tzid[0] == '/') - return; - - /* Now we have two VTIMEZONEs with the same TZID (which isn't a globally - unique one), so we compare the VTIMEZONE components to see if they are - the same. If they are, we don't need to do anything. We make a copy of - the tzid, since the parameter may get modified in these calls. */ - tzid_copy = strdup (tzid); - if (!tzid_copy) { - icalerror_set_errno(ICAL_NEWFAILED_ERROR); - return; - } - - if (!icalcomponent_compare_vtimezones (comp, vtimezone)) { - /* FIXME: Handle possible NEWFAILED error. */ - - /* Now we have two different VTIMEZONEs with the same TZID. */ - icalcomponent_handle_conflicting_vtimezones (comp, vtimezone, tzid_prop, - tzid_copy, tzids_to_rename); - } - free (tzid_copy); -} - - -static void -icalcomponent_handle_conflicting_vtimezones (icalcomponent *comp, - icalcomponent *vtimezone, - icalproperty *tzid_prop, - const char *tzid, - icalarray *tzids_to_rename) -{ - int i, suffix, max_suffix = 0, num_elements; - unsigned int tzid_len; - char *tzid_copy, *new_tzid, suffix_buf[32]; - (void)tzid_prop; /* hack to stop unused variable warning */ - - /* Find the length of the TZID without any trailing digits. */ - tzid_len = icalcomponent_get_tzid_prefix_len (tzid); - - /* Step through each of the VTIMEZONEs in comp. We may already have the - clashing VTIMEZONE in the calendar, but it may have been renamed - (i.e. a unique number added on the end of the TZID, e.g. 'London2'). - So we compare the new VTIMEZONE with any VTIMEZONEs that have the - same prefix (e.g. 'London'). If it matches any of those, we have to - rename the TZIDs to that TZID, else we rename to a new TZID, using - the biggest numeric suffix found + 1. */ - num_elements = comp->timezones ? comp->timezones->num_elements : 0; - for (i = 0; i < num_elements; i++) { - icaltimezone *zone; - const char *existing_tzid; - const char *existing_tzid_copy; - unsigned int existing_tzid_len; - - zone = icalarray_element_at (comp->timezones, i); - existing_tzid = icaltimezone_get_tzid (zone); - - /* Find the length of the TZID without any trailing digits. */ - existing_tzid_len = icalcomponent_get_tzid_prefix_len (existing_tzid); - - /* Check if we have the same prefix. */ - if (tzid_len == existing_tzid_len - && !strncmp (tzid, existing_tzid, tzid_len)) { - /* Compare the VTIMEZONEs. */ - if (icalcomponent_compare_vtimezones (icaltimezone_get_component (zone), - vtimezone)) { - /* The VTIMEZONEs match, so we can use the existing VTIMEZONE. But - we have to rename TZIDs to this TZID. */ - tzid_copy = strdup (tzid); - existing_tzid_copy = strdup (existing_tzid); - if (!tzid_copy || !existing_tzid_copy) { - icalerror_set_errno(ICAL_NEWFAILED_ERROR); - } else { - icalarray_append (tzids_to_rename, tzid_copy); - icalarray_append (tzids_to_rename, existing_tzid_copy); - } - return; - } else { - /* FIXME: Handle possible NEWFAILED error. */ - - /* Convert the suffix to an integer and remember the maximum numeric - suffix found. */ - suffix = atoi (existing_tzid + existing_tzid_len); - if (max_suffix < suffix) - max_suffix = suffix; - } - } - } - - /* We didn't find a VTIMEZONE that matched, so we have to rename the TZID, - using the maximum numerical suffix found + 1. */ - tzid_copy = strdup (tzid); - snprintf (suffix_buf, sizeof(suffix_buf), "%i", max_suffix + 1); - new_tzid = malloc (tzid_len + strlen (suffix_buf) + 1); - if (!new_tzid || !tzid_copy) { - icalerror_set_errno(ICAL_NEWFAILED_ERROR); - return; - } - - strncpy (new_tzid, tzid, tzid_len); - strcpy (new_tzid + tzid_len, suffix_buf); - icalarray_append (tzids_to_rename, tzid_copy); - icalarray_append (tzids_to_rename, new_tzid); -} - - -/* Returns the length of the TZID, without any trailing digits. */ -static unsigned int icalcomponent_get_tzid_prefix_len (const char *tzid) -{ - int len; - const char *p; - - len = strlen (tzid); - p = tzid + len - 1; - while (len > 0 && *p >= '0' && *p <= '9') { - p--; - len--; - } - - return len; -} - - -/** - * Renames all references to the given TZIDs to a new name. rename_table - * contains pairs of strings - a current TZID, and the new TZID to rename it - * to. - */ -static void icalcomponent_rename_tzids(icalcomponent* comp, - icalarray* rename_table) -{ - icalcomponent_foreach_tzid (comp, icalcomponent_rename_tzids_callback, - rename_table); -} - - -static void icalcomponent_rename_tzids_callback(icalparameter *param, void *data) -{ - icalarray *rename_table = data; - const char *tzid; - int i; - - tzid = icalparameter_get_tzid (param); - if (!tzid) - return; - - /* Step through the rename table to see if the current TZID matches - any of the ones we want to rename. */ - for (i = 0; (unsigned int)i < rename_table->num_elements - 1; i += 2) { - if (!strcmp (tzid, icalarray_element_at (rename_table, i))) { - icalparameter_set_tzid (param, icalarray_element_at (rename_table, i + 1)); - break; - } - } -} - - -/** - * Calls the given function for each TZID parameter found in the component. - */ -void icalcomponent_foreach_tzid(icalcomponent* comp, - void (*callback)(icalparameter *param, void *data), - void *callback_data) -{ - icalproperty *prop; - icalproperty_kind kind; - icalparameter *param; - icalcomponent *subcomp; - - /* First look for any TZID parameters used in this component itself. */ - prop = icalcomponent_get_first_property (comp, ICAL_ANY_PROPERTY); - while (prop) { - kind = icalproperty_isa (prop); - - /* These are the only properties that can have a TZID. Note that - COMPLETED, CREATED, DTSTAMP & LASTMODIFIED must be in UTC. */ - if (kind == ICAL_DTSTART_PROPERTY || kind == ICAL_DTEND_PROPERTY - || kind == ICAL_DUE_PROPERTY || kind == ICAL_EXDATE_PROPERTY - || kind == ICAL_RDATE_PROPERTY) { - param = icalproperty_get_first_parameter (prop, ICAL_TZID_PARAMETER); - if (param) - (*callback) (param, callback_data); - } - - prop = icalcomponent_get_next_property (comp, ICAL_ANY_PROPERTY); - } - - /* Now recursively check child components. */ - subcomp = icalcomponent_get_first_component (comp, ICAL_ANY_COMPONENT); - while (subcomp) { - icalcomponent_foreach_tzid (subcomp, callback, callback_data); - subcomp = icalcomponent_get_next_component (comp, ICAL_ANY_COMPONENT); - } -} - - - -/** - * Returns the icaltimezone from the component corresponding to the given - * TZID, or NULL if the component does not have a corresponding VTIMEZONE. - */ -icaltimezone* icalcomponent_get_timezone(icalcomponent* comp, const char *tzid) -{ - icaltimezone *zone; - int lower, upper, middle, cmp; - const char *zone_tzid; - - if (!comp->timezones) - return NULL; - - /* Sort the array if necessary (by the TZID string). */ - if (!comp->timezones_sorted) { - icalarray_sort (comp->timezones, icalcomponent_compare_timezone_fn); - comp->timezones_sorted = 1; - } - - /* Do a simple binary search. */ - lower = middle = 0; - upper = comp->timezones->num_elements; - - while (lower < upper) { - middle = (lower + upper) >> 1; - zone = icalarray_element_at (comp->timezones, middle); - zone_tzid = icaltimezone_get_tzid (zone); - cmp = strcmp (tzid, zone_tzid); - if (cmp == 0) - return zone; - else if (cmp < 0) - upper = middle; - else - lower = middle + 1; - } - - return NULL; -} - - -/** - * A function to compare 2 icaltimezone elements, used for qsort(). - */ -static int icalcomponent_compare_timezone_fn (const void *elem1, - const void *elem2) -{ - icaltimezone *zone1, *zone2; - const char *zone1_tzid, *zone2_tzid; - - zone1 = (icaltimezone*) elem1; - zone2 = (icaltimezone*) elem2; - - zone1_tzid = icaltimezone_get_tzid (zone1); - zone2_tzid = icaltimezone_get_tzid (zone2); - - return strcmp (zone1_tzid, zone2_tzid); -} - - -/** - * Compares 2 VTIMEZONE components to see if they match, ignoring their TZIDs. - * It returns 1 if they match, 0 if they don't, or -1 on error. - */ -static int icalcomponent_compare_vtimezones (icalcomponent *vtimezone1, - icalcomponent *vtimezone2) -{ - icalproperty *prop1, *prop2; - const char *tzid1, *tzid2; - char *tzid2_copy, *string1, *string2; - int cmp; - - /* Get the TZID property of the first VTIMEZONE. */ - prop1 = icalcomponent_get_first_property (vtimezone1, ICAL_TZID_PROPERTY); - if (!prop1) - return -1; - - tzid1 = icalproperty_get_tzid (prop1); - if (!tzid1) - return -1; - - /* Get the TZID property of the second VTIMEZONE. */ - prop2 = icalcomponent_get_first_property (vtimezone2, ICAL_TZID_PROPERTY); - if (!prop2) - return -1; - - tzid2 = icalproperty_get_tzid (prop2); - if (!tzid2) - return -1; - - /* Copy the second TZID, and set the property to the same as the first - TZID, since we don't care if these match of not. */ - tzid2_copy = strdup (tzid2); - if (!tzid2_copy) { - icalerror_set_errno (ICAL_NEWFAILED_ERROR); - return 0; - } - - icalproperty_set_tzid (prop2, tzid1); - - /* Now convert both VTIMEZONEs to strings and compare them. */ - string1 = icalcomponent_as_ical_string (vtimezone1); - if (!string1) { - free (tzid2_copy); - return -1; - } - - string2 = icalcomponent_as_ical_string (vtimezone2); - if (!string2) { - free (string1); - free (tzid2_copy); - return -1; - } - - cmp = strcmp (string1, string2); - - free (string1); - free (string2); - - /* Now reset the second TZID. */ - icalproperty_set_tzid (prop2, tzid2_copy); - free (tzid2_copy); - - return (cmp == 0) ? 1 : 0; -} - - - - - - -/** - * @brief set the RELCALID property of a component. - * - * @param comp Valid calendar component. - * @param v Relcalid URL value - */ - -void icalcomponent_set_relcalid(icalcomponent* comp, const char* v) -{ - ICALSETUPSET(ICAL_RELCALID_PROPERTY); - - if (prop == 0){ - prop = icalproperty_new_relcalid(v); - icalcomponent_add_property(inner, prop); - } - - icalproperty_set_relcalid(prop,v); - -} - - -/** - * @brief get the RELCALID property of a component. - * - * @param comp Valid calendar component. - */ - -const char* icalcomponent_get_relcalid(icalcomponent* comp){ - icalcomponent *inner; - icalproperty *prop; - icalerror_check_arg_rz(comp!=0,"comp"); - - inner = icalcomponent_get_inner(comp); - - if(inner == 0){ - return 0; - } - - prop= icalcomponent_get_first_property(inner,ICAL_RELCALID_PROPERTY); - - if (prop == 0){ - return 0; - } - - return icalproperty_get_relcalid(prop); -} - - -/** @brief Return the time a TODO task is DUE. - * - * @param comp Valid calendar component. - * - * Uses the DUE: property if it exists, otherwise we calculate the DUE - * value by adding the task's duration to the DTSTART time - */ - -struct icaltimetype icalcomponent_get_due(icalcomponent* comp) -{ - icalcomponent *inner = icalcomponent_get_inner(comp); - - icalproperty *due_prop - = icalcomponent_get_first_property(inner,ICAL_DUE_PROPERTY); - - icalproperty *dur_prop - = icalcomponent_get_first_property(inner, ICAL_DURATION_PROPERTY); - - if( due_prop == 0 && dur_prop == 0){ - return icaltime_null_time(); - } else if ( due_prop != 0) { - return icalproperty_get_due(due_prop); - } else if ( dur_prop != 0) { - - struct icaltimetype start = - icalcomponent_get_dtstart(inner); - struct icaldurationtype duration = - icalproperty_get_duration(dur_prop); - - struct icaltimetype due = icaltime_add(start,duration); - - return due; - - } else { - /* Error, both duration and due have been specified */ - icalerror_set_errno(ICAL_MALFORMEDDATA_ERROR); - return icaltime_null_time(); - - } - -} - -/** @brief Set the due date of a VTODO task. - * - * @param comp Valid VTODO component. - * @param v Valid due date time. - * - * - If no duration or due properties then set the DUE property. - * - If a DUE property is already set, then reset it to the value v. - * - If a DURATION property is already set, then calculate the new - * duration based on the supplied value of v. - */ - -void icalcomponent_set_due(icalcomponent* comp, struct icaltimetype v) -{ - icalcomponent *inner = icalcomponent_get_inner(comp); - - icalproperty *due_prop - = icalcomponent_get_first_property(inner,ICAL_DUE_PROPERTY); - - icalproperty *dur_prop - = icalcomponent_get_first_property(inner,ICAL_DURATION_PROPERTY); - - - if( due_prop == 0 && dur_prop == 0){ - due_prop = icalproperty_new_due(v); - icalcomponent_add_property(inner,due_prop); - } else if ( due_prop != 0) { - icalproperty_set_due(due_prop,v); - } else if ( dur_prop != 0) { - struct icaltimetype start = - icalcomponent_get_dtstart(inner); - - struct icaltimetype due = - icalcomponent_get_due(inner); - - struct icaldurationtype dur - = icaltime_subtract(due,start); - - icalproperty_set_duration(dur_prop,dur); - - } else { - /* Error, both duration and due have been specified */ - icalerror_set_errno(ICAL_MALFORMEDDATA_ERROR); - } -} |