/*
- * $Id$
- */
-/**
+ * Copyright (c) 1996-2012 by the citadel.org team
+ *
+ * This program is open source software. You can redistribute it and/or
+ * modify it under the terms of the GNU General Public License, version 3.
*
- * \defgroup CalendarAv Check attendee availability for scheduling a meeting.
- * \ingroup Calendaring
+ * 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.
*/
-/*@{*/
#include "webcit.h"
#include "webserver.h"
+#include "calendar.h"
-/** only available if we have calendaring */
-#ifdef WEBCIT_WITH_CALENDAR_SERVICE
-
-
-
-/**
- * \brief verify users avaiability
- * Utility function to fetch a VFREEBUSY type of thing for
- * any specified user.
- * \param who string of the user to search
+/*
+ * Utility function to fetch a VFREEBUSY type of thing for any specified user.
*/
icalcomponent *get_freebusy_for_user(char *who) {
+ long nLines;
char buf[SIZ];
- char *serialized_fb = NULL;
+ StrBuf *serialized_fb = NewStrBuf();
icalcomponent *fb = NULL;
serv_printf("ICAL freebusy|%s", who);
serv_getln(buf, sizeof buf);
if (buf[0] == '1') {
- serialized_fb = read_server_text();
+ read_server_text(serialized_fb, &nLines);
}
if (serialized_fb == NULL) {
return NULL;
}
- fb = icalcomponent_new_from_string(serialized_fb);
- free(serialized_fb);
+ fb = icalcomponent_new_from_string(ChrPtr(serialized_fb));
+ FreeStrBuf(&serialized_fb);
if (fb == NULL) {
return NULL;
}
}
-/* TODO: temporary copy from libical, apply this patch to libical... */
-int webcit_icaltime_compare(const struct icaltimetype a_in, const struct icaltimetype b_in)
-{
- struct icaltimetype a, b;
-
- a = icaltime_convert_to_zone(a_in, icaltimezone_get_utc_timezone());
- b = icaltime_convert_to_zone(b_in, icaltimezone_get_utc_timezone());
-
- if (a.year > b.year)
- return 1;
- else if (a.year < b.year)
- return -1;
-
- else if (a.month > b.month)
- return 1;
- else if (a.month < b.month)
- return -1;
-
- else if (a.day > b.day)
- return 1;
- else if (a.day < b.day)
- return -1;
-
- /* if both are dates, we are done */
- if (a.is_date && b.is_date)
- return 0;
-
- /* else, if only one is a date (and we already know the date part is equal),
- then the other is greater */
- else if (b.is_date)
- return 1;
- else if (a.is_date)
- return -1;
-
- else if (a.hour > b.hour)
- return 1;
- else if (a.hour < b.hour)
- return -1;
-
- else if (a.minute > b.minute)
- return 1;
- else if (a.minute < b.minute)
- return -1;
-
- else if (a.second > b.second)
- return 1;
- else if (a.second < b.second)
- return -1;
-
- return 0;
-}
-
-
-/**
- * \brief Check if dates are overlapping
+/*
* Check to see if two events overlap.
* (This function is used in both Citadel and WebCit. If you change it in
- * one place, change it in the other. Better yet, put it in a library.)
- * \param t1start date one start
- * \param t1end date one end
- * \param t2start date one start
- * \param t2end date two end
- * \returns nonzero if they do.
+ * one place, change it in the other. We should seriously consider moving
+ * this function upstream into libical.)
+ *
+ * Returns nonzero if they do overlap.
*/
int ical_ctdl_is_overlap(
struct icaltimetype t1start,
if (icaltime_is_null_time(t1start)) return(0);
if (icaltime_is_null_time(t2start)) return(0);
- /** First, check for all-day events */
- if (t1start.is_date) {
- if (!icaltime_compare_date_only(t1start, t2start)) {
- return(1);
- }
- if (!icaltime_is_null_time(t2end)) {
- if (!icaltime_compare_date_only(t1start, t2end)) {
- return(1);
- }
+ /* if either event lacks end time, assume end = start */
+ if (icaltime_is_null_time(t1end))
+ memcpy(&t1end, &t1start, sizeof(struct icaltimetype));
+ else {
+ if (t1end.is_date && icaltime_compare(t1start, t1end)) {
+ /*
+ * the end date is non-inclusive so adjust it by one
+ * day because our test is inclusive, note that a day is
+ * not too much because we are talking about all day
+ * events
+ * if start = end we assume that nevertheless the whole
+ * day is meant
+ */
+ icaltime_adjust(&t1end, -1, 0, 0, 0);
}
}
- if (t2start.is_date) {
- if (!icaltime_compare_date_only(t2start, t1start)) {
- return(1);
- }
- if (!icaltime_is_null_time(t1end)) {
- if (!icaltime_compare_date_only(t2start, t1end)) {
- return(1);
- }
+ if (icaltime_is_null_time(t2end))
+ memcpy(&t2end, &t2start, sizeof(struct icaltimetype));
+ else {
+ if (t2end.is_date && icaltime_compare(t2start, t2end)) {
+ icaltime_adjust(&t2end, -1, 0, 0, 0);
}
}
- lprintf (2,"Comparing t1start %d:%d t1end %d:%d t2start %d:%d t2end %d:%d \n", t1start.hour, t1start.minute, t1end.hour, t1end.minute, t2start.hour, t2start.minute, t2end.hour, t2end.minute);// TODO: remove me.
+ /* First, check for all-day events */
+ if (t1start.is_date || t2start.is_date) {
+ /* If event 1 ends before event 2 starts, we're in the clear. */
+ if (icaltime_compare_date_only(t1end, t2start) < 0) return(0);
- /** Now check for overlaps using date *and* time. */
+ /* If event 2 ends before event 1 starts, we're also ok. */
+ if (icaltime_compare_date_only(t2end, t1start) < 0) return(0);
+
+ return(1);
+ }
- /** First, bail out if either event 1 or event 2 is missing end time. */
- if (icaltime_is_null_time(t1end)) return(0);
- if (icaltime_is_null_time(t2end)) return(0);
+ /* syslog(9, "Comparing t1start %d:%d t1end %d:%d t2start %d:%d t2end %d:%d \n",
+ t1start.hour, t1start.minute, t1end.hour, t1end.minute,
+ t2start.hour, t2start.minute, t2end.hour, t2end.minute);
+ */
- /** If event 1 ends before event 2 starts, we're in the clear. */
- if (webcit_icaltime_compare(t1end, t2start) <= 0) return(0);
- lprintf(2,"first pased \n");
- /** If event 2 ends before event 1 starts, we're also ok. */
- if (webcit_icaltime_compare(t2end, t1start) <= 0) return(0);
- lprintf(2,"second pased \n");
+ /* Now check for overlaps using date *and* time. */
- /** Otherwise, they overlap. */
+ /* If event 1 ends before event 2 starts, we're in the clear. */
+ if (icaltime_compare(t1end, t2start) <= 0) return(0);
+ /* syslog(9, "first passed\n"); */
+
+ /* If event 2 ends before event 1 starts, we're also ok. */
+ if (icaltime_compare(t2end, t1start) <= 0) return(0);
+ /* syslog(9, "second passed\n"); */
+
+ /* Otherwise, they overlap. */
return(1);
}
/*
- * \brief dig availability on citserver
* Back end function for check_attendee_availability()
* This one checks an individual attendee against a supplied
* event start and end time. All these fields have already been
* broken out.
- * \param attendee_string name of the attendee
- * \param event_start starttime of the event to check
- * \param event_end endtime of the event to check
- * \return The result is placed in 'annotation'.
+ *
+ * attendee_string name of the attendee
+ * event_start start time of the event to check
+ * event_end end time of the event to check
+ *
+ * The result is placed in 'annotation'.
*/
void check_individual_attendee(char *attendee_string,
struct icaltimetype event_start,
icalproperty *thisfb = NULL;
struct icalperiodtype period;
- /**
+ /*
* Set to 'unknown' right from the beginning. Unless we learn
* something else, that's what we'll go with.
*/
return;
}
- /**
+ /*
* Make sure we're looking at a VFREEBUSY by itself. What we're probably
* looking at initially is a VFREEBUSY encapsulated in a VCALENDAR.
*/
fb = fbc;
}
- /** Iterate through all FREEBUSY's looking for conflicts. */
+ /* Iterate through all FREEBUSY's looking for conflicts. */
if (fb != NULL) {
strcpy(annotation, _("free"));
-/**
- * \brief check attendees availability
+/*
* Check the availability of all attendees for an event (when possible)
* and annotate accordingly.
- * \param vevent the event which should be compared with attendees calendar
+ *
+ * vevent the event which should be compared with attendees calendar
*/
void check_attendee_availability(icalcomponent *vevent) {
icalproperty *attendee = NULL;
char attendee_string[SIZ];
char annotated_attendee_string[SIZ];
char annotation[SIZ];
+ const char *ch;
if (vevent == NULL) {
return;
}
- /**
+ /*
* If we're looking at a fully encapsulated VCALENDAR
* rather than a VEVENT component, attempt to use the first
* relevant VEVENT subcomponent. If there is none, the
ical_dezonify(vevent); /**< Convert everything to UTC */
- /**
+ /*
* Learn the start and end times.
*/
dtstart_p = icalcomponent_get_first_property(vevent, ICAL_DTSTART_PROPERTY);
dtend_p = icalcomponent_get_first_property(vevent, ICAL_DTEND_PROPERTY);
if (dtend_p != NULL) dtend_t = icalproperty_get_dtend(dtend_p);
- /**
+ /*
* Iterate through attendees.
*/
for (attendee = icalcomponent_get_first_property(vevent, ICAL_ATTENDEE_PROPERTY);
attendee != NULL;
attendee = icalcomponent_get_next_property(vevent, ICAL_ATTENDEE_PROPERTY)) {
-
- strcpy(attendee_string, icalproperty_get_attendee(attendee));
- if (!strncasecmp(attendee_string, "MAILTO:", 7)) {
+ ch = icalproperty_get_attendee(attendee);
+ if ((ch != NULL) && !strncasecmp(ch, "MAILTO:", 7)) {
/** screen name or email address */
- strcpy(attendee_string, &attendee_string[7]);
+ safestrncpy(attendee_string, ch + 7, sizeof(attendee_string));
striplt(attendee_string);
check_individual_attendee(attendee_string,
}
-
-#endif /* WEBCIT_WITH_CALENDAR_SERVICE */
-
-/** @} */