]> code.citadel.org Git - citadel.git/blobdiff - citadel/modules/calendar/serv_calendar.c
* start tinkering with timezones in freebusy
[citadel.git] / citadel / modules / calendar / serv_calendar.c
index 3d63bcdc26cf8fe2a3e7908f51899bb4a9557ca2..8f49b4e85c94fe83f30ea32f94b07bee7efd474b 100644 (file)
@@ -316,7 +316,8 @@ void ical_send_a_reply(icalcomponent *request, char *action) {
 
 /*
  * Callback function for mime parser that hunts for calendar content types
- * and turns them into calendar objects
+ * and turns them into calendar objects.  If something is found, it is placed
+ * in ird->cal, and the caller now owns that memory and is responsible for freeing it.
  */
 void ical_locate_part(char *name, char *filename, char *partnum, char *disp,
                void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
@@ -1221,23 +1222,30 @@ void ical_conflicts(long msgnum, char *partnum) {
 
 /*
  * Look for busy time in a VEVENT and add it to the supplied VFREEBUSY.
+ *
+ * fb                  The VFREEBUSY component to which we are appending
+ * top_level_cal       The top-level VCALENDAR component which contains a VEVENT to be added
  */
-void ical_add_to_freebusy(icalcomponent *fb, icalcomponent *cal) {
+void ical_add_to_freebusy(icalcomponent *fb, icalcomponent *top_level_cal) {
+       icalcomponent *cal;
        icalproperty *p;
        icalvalue *v;
-       struct icalperiodtype my_period;
+       struct icalperiodtype this_event_period = icalperiodtype_null_period();
+       icaltimetype dtstart = icaltime_null_time();
+       icaltimetype dtend = icaltime_null_time();
 
-       if (cal == NULL) return;
-       my_period = icalperiodtype_null_period();
+       /* recur variables */
+       icalproperty *rrule = NULL;
+       struct icalrecurrencetype recur;
+       icalrecur_iterator *ritr = NULL;
+       struct icaldurationtype dur;
+       int num_recur = 0;
 
-       if (icalcomponent_isa(cal) != ICAL_VEVENT_COMPONENT) {
-               ical_add_to_freebusy(fb,
-                       icalcomponent_get_first_component(
-                               cal, ICAL_VEVENT_COMPONENT
-                       )
-               );
-               return;
-       }
+       if (!top_level_cal) return;
+
+       /* Find the VEVENT component containing an event */
+       cal = icalcomponent_get_first_component(top_level_cal, ICAL_VEVENT_COMPONENT);
+       if (!cal) return;
 
        /* If this event is not opaque, the user isn't publishing it as
         * busy time, so don't bother doing anything else.
@@ -1252,58 +1260,98 @@ void ical_add_to_freebusy(icalcomponent *fb, icalcomponent *cal) {
                }
        }
 
-       /* Convert the DTSTART and DTEND properties to an icalperiod. */
+       /*
+        * Now begin calculating the event start and end times.
+        */
        p = icalcomponent_get_first_property(cal, ICAL_DTSTART_PROPERTY);
-       if (p != NULL) {
-               my_period.start = icalproperty_get_dtstart(p);
-       }
-
-       p = icalcomponent_get_first_property(cal, ICAL_DTEND_PROPERTY);
-       if (p != NULL) {
-               my_period.end = icalproperty_get_dtstart(p);
-       }
-
-       /* Now add it. */
-       icalcomponent_add_property(fb,
-               icalproperty_new_freebusy(my_period)
-       );
+       if (!p) return;
+       dtstart = icalproperty_get_dtstart(p);
 
-       /* Make sure the DTSTART property of the freebusy *list* is set to
-        * the DTSTART property of the *earliest event*.
-        */
-       p = icalcomponent_get_first_property(fb, ICAL_DTSTART_PROPERTY);
-       if (p == NULL) {
-               icalcomponent_set_dtstart(fb,
-                       icalcomponent_get_dtstart(cal) );
+       if (icaltime_is_utc(dtstart)) {
+               dtstart.zone = icaltimezone_get_utc_timezone();
        }
        else {
-               if (icaltime_compare(
-                       icalcomponent_get_dtstart(cal),
-                       icalcomponent_get_dtstart(fb)
-                  ) < 0) {
-                       icalcomponent_set_dtstart(fb,
-                               icalcomponent_get_dtstart(cal) );
+               dtstart.zone = icalcomponent_get_timezone(top_level_cal,
+                       icalparameter_get_tzid(
+                               icalproperty_get_first_parameter(p, ICAL_TZID_PARAMETER)
+                       )
+               );
+               if (!dtstart.zone) {
+                       dtstart.zone = get_default_icaltimezone();
                }
        }
+       // FIXME do more here
 
-       /* Make sure the DTEND property of the freebusy *list* is set to
-        * the DTEND property of the *latest event*.
-        */
-       p = icalcomponent_get_first_property(fb, ICAL_DTEND_PROPERTY);
-       if (p == NULL) {
-               icalcomponent_set_dtend(fb,
-                       icalcomponent_get_dtend(cal) );
+       dtend = icalcomponent_get_dtend(cal);
+       if (!icaltime_is_null_time(dtend)) {
+               dur = icaltime_subtract(dtend, dtstart);
        }
-       else {
-               if (icaltime_compare(
-                       icalcomponent_get_dtend(cal),
-                       icalcomponent_get_dtend(fb)
-                  ) > 0) {
-                       icalcomponent_set_dtend(fb,
-                               icalcomponent_get_dtend(cal) );
-               }
+
+       /* Is a recurrence specified?  If so, get ready to process it... */
+       rrule = ical_ctdl_get_subprop(cal, ICAL_RRULE_PROPERTY);
+       if (rrule) {
+               recur = icalproperty_get_rrule(rrule);
+               ritr = icalrecur_iterator_new(recur, dtstart);
        }
 
+       do {
+
+
+               // FIXME add timezone conversion, we are currently outputting floating times
+
+               CtdlLogPrintf(CTDL_DEBUG, "Start, utc=%d, %s\n",
+                       dtstart.is_utc,
+                       icaltime_as_ical_string(dtstart)
+               );
+
+
+
+               /* Convert the DTSTART and DTEND properties to an icalperiod. */
+               this_event_period.start = dtstart;
+       
+               if (!icaltime_is_null_time(dtend)) {
+                       this_event_period.end = dtend;
+               }
+       
+               /* Now add it. */
+               icalcomponent_add_property(fb, icalproperty_new_freebusy(this_event_period));
+
+               /* Make sure the DTSTART property of the freebusy *list* is set to
+                * the DTSTART property of the *earliest event*.
+                */
+               p = icalcomponent_get_first_property(fb, ICAL_DTSTART_PROPERTY);
+               if (p == NULL) {
+                       icalcomponent_set_dtstart(fb, dtstart);
+               }
+               else {
+                       if (icaltime_compare(dtstart, icalcomponent_get_dtstart(fb)) < 0) {
+                               icalcomponent_set_dtstart(fb, dtstart);
+                       }
+               }
+       
+               /* Make sure the DTEND property of the freebusy *list* is set to
+                * the DTEND property of the *latest event*.
+                */
+               p = icalcomponent_get_first_property(fb, ICAL_DTEND_PROPERTY);
+               if (p == NULL) {
+                       icalcomponent_set_dtend(fb, dtend);
+               }
+               else {
+                       if (icaltime_compare(dtend, icalcomponent_get_dtend(fb)) > 0) {
+                               icalcomponent_set_dtend(fb, dtend);
+                       }
+               }
+
+               if (rrule) {
+                       dtstart = icalrecur_iterator_next(ritr);
+                       if (!icaltime_is_null_time(dtend)) {
+                               dtend = icaltime_add(dtstart, dur);
+                       }
+                       ++num_recur;
+               }
+
+       } while ( (rrule) && (!icaltime_is_null_time(dtstart)) && (num_recur < MAX_RECUR) ) ;
+       icalrecur_iterator_free(ritr);
 }
 
 
@@ -1317,11 +1365,11 @@ void ical_add_to_freebusy(icalcomponent *fb, icalcomponent *cal) {
  *
  */
 void ical_freebusy_backend(long msgnum, void *data) {
-       icalcomponent *cal;
+       icalcomponent *fb;
        struct CtdlMessage *msg = NULL;
        struct ical_respond_data ird;
 
-       cal = (icalcomponent *)data;
+       fb = (icalcomponent *)data;             /* User-supplied data will be the VFREEBUSY component */
 
        msg = CtdlFetchMessage(msgnum, 1);
        if (msg == NULL) return;
@@ -1336,12 +1384,10 @@ void ical_freebusy_backend(long msgnum, void *data) {
        );
        CtdlFreeMessage(msg);
 
-       if (ird.cal == NULL) return;
-
-       ical_add_to_freebusy(cal, ird.cal);
-
-       /* Now free the memory. */
-       icalcomponent_free(ird.cal);
+       if (ird.cal) {
+               ical_add_to_freebusy(fb, ird.cal);              /* Add VEVENT times to VFREEBUSY */
+               icalcomponent_free(ird.cal);
+       }
 }
 
 
@@ -1497,7 +1543,7 @@ void ical_freebusy(char *who) {
        serialized_request = icalcomponent_as_ical_string_r(encaps);
        icalcomponent_free(encaps);     /* Don't need this anymore. */
 
-       cprintf("%d Here is the free/busy data:\n", LISTING_FOLLOWS);
+       cprintf("%d Free/busy for %s\n", LISTING_FOLLOWS, usbuf.fullname);
        if (serialized_request != NULL) {
                client_write(serialized_request, strlen(serialized_request));
                free(serialized_request);
@@ -1680,7 +1726,7 @@ void ical_putics(void)
        }
 
        cprintf("%d Transmit data now\n", SEND_LISTING);
-        calstream = CtdlReadMessageBody("000", config.c_maxmsglen, NULL, 0, 0);
+       calstream = CtdlReadMessageBody("000", config.c_maxmsglen, NULL, 0, 0);
        if (calstream == NULL) {
                return;
        }