+/*
+ * $Id$
+ *
+ * Function to go through an ical component set and convert all non-UTC
+ * date/time properties to UTC. It also strips out any VTIMEZONE
+ * subcomponents afterwards, because they're irrelevant.
+ *
+ */
+
+
+#include "sysdep.h"
#include <stdlib.h>
#include <unistd.h>
-#include <string.h>
-#include <ctype.h>
-#include <fcntl.h>
#include <sys/types.h>
+#include <limits.h>
+#include <stdio.h>
+#include <string.h>
+#include <strings.h>
+#include "citadel.h"
+#include "server.h"
+#include "citserver.h"
+#include "sysdep_decls.h"
+#include "support.h"
+#include "config.h"
+
+#ifdef CITADEL_WITH_CALENDAR_SERVICE
#include <ical.h>
+#include "ical_dezonify.h"
+
+icaltimezone *get_default_icaltimezone(void) {
+
+ char *location = NULL;
+ icaltimezone *zone = NULL;
+
+ location = "America/New_York";
+ if (location) {
+ zone = icaltimezone_get_builtin_timezone (location);
+ }
+ if (!zone)
+ zone = icaltimezone_get_utc_timezone ();
+
+ return zone;
+}
-void ical_dezonify(icalcomponent *cal);
/*
* Back end function for ical_dezonify()
*
- * We supply this with the master component and the property (which will
- * be a DTSTART or DTEND) which we want to convert to UTC.
+ * We supply this with the master component, the relevant component,
+ * and the property (which will be a DTSTART, DTEND, etc.)
+ * which we want to convert to UTC.
*/
-void ical_dezonify_backend(icalcomponent *cal, icalproperty *prop) {
- icaltimezone *t;
+void ical_dezonify_backend(icalcomponent *cal,
+ icalcomponent *rcal,
+ icalproperty *prop) {
+
+ icaltimezone *t = NULL;
icalparameter *param;
const char *tzid;
struct icaltimetype TheTime;
/* Hunt for a TZID parameter in this property. */
param = icalproperty_get_first_parameter(prop, ICAL_TZID_PARAMETER);
- if (param == NULL) {
- printf("No tzid parameter found - "
- "perhaps this component is already UTC?\n");
- return;
- }
/* Get the stringish name of this TZID. */
- tzid = icalparameter_get_tzid(param);
- if (tzid == NULL) {
- printf("icalparameter_get_tzid() returned NULL\n");
- return;
- }
+ if (param != NULL) {
+ tzid = icalparameter_get_tzid(param);
+
+ /* Convert it to an icaltimezone type. */
+ if (tzid != NULL) {
+ t = icalcomponent_get_timezone(cal, tzid);
+ }
- /* Convert it to an icaltimezone type. */
- t = icalcomponent_get_timezone(cal, tzid);
- if (t == NULL) {
- printf("icalcomponent_get_timezone(%s) returned NULL\n", tzid);
}
/* Now we know the timezone. Convert to UTC. */
else if (icalproperty_isa(prop) == ICAL_DTEND_PROPERTY) {
TheTime = icalproperty_get_dtend(prop);
}
+ else if (icalproperty_isa(prop) == ICAL_DUE_PROPERTY) {
+ TheTime = icalproperty_get_due(prop);
+ }
+ else if (icalproperty_isa(prop) == ICAL_EXDATE_PROPERTY) {
+ TheTime = icalproperty_get_exdate(prop);
+ }
+ else {
+ return;
+ }
- /* Do the conversion.
- * (I had to specify the 'from' and 'to' timezones backwards. Is the
- * API documentation wrong?)
- */
- icaltimezone_convert_time(&TheTime,
- icaltimezone_get_utc_timezone(),
- t
- );
-
- /* Now strip the TZID parameter, because it's incorrect now. */
- icalproperty_remove_parameter(prop, ICAL_TZID_PARAMETER);
+ if (TheTime.is_utc) {
+ lprintf(CTDL_DEBUG, " * This property is ALREADY UTC.\n");
+ }
+ else {
+ /* Do the conversion. */
+ if (t != NULL) {
+ lprintf(CTDL_DEBUG, " * Timezone prop found. Converting to UTC.\n");
+ icaltimezone_convert_time(&TheTime,
+ t,
+ icaltimezone_get_utc_timezone()
+ );
+ }
+ else {
+ lprintf(CTDL_DEBUG, " * Converting default timezone to UTC.\n");
+ icaltimezone_convert_time(&TheTime,
+ get_default_icaltimezone(),
+ icaltimezone_get_utc_timezone()
+ );
+ }
+ TheTime.is_utc = 1;
+ }
+ icalproperty_remove_parameter_by_kind(prop, ICAL_TZID_PARAMETER);
+ /* Now add the converted property back in. */
if (icalproperty_isa(prop) == ICAL_DTSTART_PROPERTY) {
icalproperty_set_dtstart(prop, TheTime);
}
else if (icalproperty_isa(prop) == ICAL_DTEND_PROPERTY) {
icalproperty_set_dtend(prop, TheTime);
}
-
+ else if (icalproperty_isa(prop) == ICAL_DUE_PROPERTY) {
+ icalproperty_set_due(prop, TheTime);
+ }
+ else if (icalproperty_isa(prop) == ICAL_EXDATE_PROPERTY) {
+ icalproperty_set_exdate(prop, TheTime);
+ }
}
if (
(icalproperty_isa(p) == ICAL_DTSTART_PROPERTY)
|| (icalproperty_isa(p) == ICAL_DTEND_PROPERTY)
+ || (icalproperty_isa(p) == ICAL_DUE_PROPERTY)
+ || (icalproperty_isa(p) == ICAL_EXDATE_PROPERTY)
) {
- ical_dezonify_backend(cal, p);
+ ical_dezonify_backend(cal, rcal, p);
}
}
}
void ical_dezonify(icalcomponent *cal) {
icalcomponent *vt = NULL;
+ lprintf(CTDL_DEBUG, "ical_dezonify() started\n");
+
/* Convert all times to UTC */
ical_dezonify_recur(cal, cal);
icalcomponent_remove_component(cal, vt);
icalcomponent_free(vt);
}
+
+ lprintf(CTDL_DEBUG, "ical_dezonify() completed\n");
}
+
+
+#endif /* CITADEL_WITH_CALENDAR_SERVICE */