4 * This module implements iCalendar object processing and the Calendar>
5 * room on a Citadel server. It handles iCalendar objects using the
6 * iTIP protocol. See RFCs 2445 and 2446.
10 #define PRODID "-//Citadel//NONSGML Citadel Calendar//EN"
15 #include <sys/types.h>
22 #include <libical/ical.h>
23 #include <libcitadel.h>
26 #include "citserver.h"
32 #include "internet_addressing.h"
33 #include "serv_calendar.h"
34 #include "euidindex.h"
35 #include "ctdl_module.h"
36 #include "ical_dezonify.h"
40 struct ical_respond_data {
41 char desired_partnum[SIZ];
47 * Utility function to create a new VCALENDAR component with some of the
48 * required fields already set the way we like them.
50 icalcomponent *icalcomponent_new_citadel_vcalendar(void) {
51 icalcomponent *encaps;
53 encaps = icalcomponent_new_vcalendar();
55 CtdlLogPrintf(CTDL_CRIT, "Error at %s:%d - could not allocate component!\n",
60 /* Set the Product ID */
61 icalcomponent_add_property(encaps, icalproperty_new_prodid(PRODID));
63 /* Set the Version Number */
64 icalcomponent_add_property(encaps, icalproperty_new_version("2.0"));
71 * Utility function to encapsulate a subcomponent into a full VCALENDAR
73 icalcomponent *ical_encapsulate_subcomponent(icalcomponent *subcomp) {
74 icalcomponent *encaps;
76 /* If we're already looking at a full VCALENDAR component,
77 * don't bother ... just return itself.
79 if (icalcomponent_isa(subcomp) == ICAL_VCALENDAR_COMPONENT) {
83 /* Encapsulate the VEVENT component into a complete VCALENDAR */
84 encaps = icalcomponent_new_citadel_vcalendar();
85 if (encaps == NULL) return NULL;
87 /* Encapsulate the subcomponent inside */
88 icalcomponent_add_component(encaps, subcomp);
90 /* Return the object we just created. */
98 * Write a calendar object into the specified user's calendar room.
99 * If the supplied user is NULL, this function writes the calendar object
100 * to the currently selected room.
102 void ical_write_to_cal(struct ctdluser *u, icalcomponent *cal) {
104 icalcomponent *encaps = NULL;
105 struct CtdlMessage *msg = NULL;
106 icalcomponent *tmp=NULL;
108 if (cal == NULL) return;
110 /* If the supplied object is a subcomponent, encapsulate it in
111 * a full VCALENDAR component, and save that instead.
113 if (icalcomponent_isa(cal) != ICAL_VCALENDAR_COMPONENT) {
114 tmp = icalcomponent_new_clone(cal);
115 encaps = ical_encapsulate_subcomponent(tmp);
116 ical_write_to_cal(u, encaps);
117 icalcomponent_free(tmp);
118 icalcomponent_free(encaps);
122 ser = icalcomponent_as_ical_string_r(cal);
123 if (ser == NULL) return;
125 /* If the caller supplied a user, write to that user's default calendar room */
127 /* This handy API function does all the work for us. */
128 CtdlWriteObject(USERCALENDARROOM, /* which room */
129 "text/calendar", /* MIME type */
131 strlen(ser)+1, /* length */
134 0, /* don't delete others of this type */
139 /* If the caller did not supply a user, write to the currently selected room */
141 msg = malloc(sizeof(struct CtdlMessage));
142 memset(msg, 0, sizeof(struct CtdlMessage));
143 msg->cm_magic = CTDLMESSAGE_MAGIC;
144 msg->cm_anon_type = MES_NORMAL;
145 msg->cm_format_type = 4;
146 msg->cm_fields['A'] = strdup(CC->user.fullname);
147 msg->cm_fields['O'] = strdup(CC->room.QRname);
148 msg->cm_fields['N'] = strdup(config.c_nodename);
149 msg->cm_fields['H'] = strdup(config.c_humannode);
150 msg->cm_fields['M'] = malloc(strlen(ser) + 40);
151 strcpy(msg->cm_fields['M'], "Content-type: text/calendar\r\n\r\n");
152 strcat(msg->cm_fields['M'], ser);
154 /* Now write the data */
155 CtdlSubmitMsg(msg, NULL, "", QP_EADDR);
156 CtdlFreeMessage(msg);
159 /* In either case, now we can free the serialized calendar object */
165 * Send a reply to a meeting invitation.
167 * 'request' is the invitation to reply to.
168 * 'action' is the string "accept" or "decline" or "tentative".
171 void ical_send_a_reply(icalcomponent *request, char *action) {
172 icalcomponent *the_reply = NULL;
173 icalcomponent *vevent = NULL;
174 icalproperty *attendee = NULL;
175 char attendee_string[SIZ];
176 icalproperty *organizer = NULL;
177 char organizer_string[SIZ];
178 icalproperty *summary = NULL;
179 char summary_string[SIZ];
180 icalproperty *me_attend = NULL;
181 struct recptypes *recp = NULL;
182 icalparameter *partstat = NULL;
183 char *serialized_reply = NULL;
184 char *reply_message_text = NULL;
185 struct CtdlMessage *msg = NULL;
186 struct recptypes *valid = NULL;
188 strcpy(organizer_string, "");
189 strcpy(summary_string, "Calendar item");
191 if (request == NULL) {
192 CtdlLogPrintf(CTDL_ERR, "ERROR: trying to reply to NULL event?\n");
196 the_reply = icalcomponent_new_clone(request);
197 if (the_reply == NULL) {
198 CtdlLogPrintf(CTDL_ERR, "ERROR: cannot clone request\n");
202 /* Change the method from REQUEST to REPLY */
203 icalcomponent_set_method(the_reply, ICAL_METHOD_REPLY);
205 vevent = icalcomponent_get_first_component(the_reply, ICAL_VEVENT_COMPONENT);
206 if (vevent != NULL) {
207 /* Hunt for attendees, removing ones that aren't us.
208 * (Actually, remove them all, cloning our own one so we can
209 * re-insert it later)
211 while (attendee = icalcomponent_get_first_property(vevent,
212 ICAL_ATTENDEE_PROPERTY), (attendee != NULL)
214 if (icalproperty_get_attendee(attendee)) {
215 strcpy(attendee_string,
216 icalproperty_get_attendee(attendee) );
217 if (!strncasecmp(attendee_string, "MAILTO:", 7)) {
218 strcpy(attendee_string, &attendee_string[7]);
219 striplt(attendee_string);
220 recp = validate_recipients(attendee_string, NULL, 0);
222 if (!strcasecmp(recp->recp_local, CC->user.fullname)) {
223 if (me_attend) icalproperty_free(me_attend);
224 me_attend = icalproperty_new_clone(attendee);
226 free_recipients(recp);
231 icalcomponent_remove_property(vevent, attendee);
232 icalproperty_free(attendee);
235 /* We found our own address in the attendee list. */
237 /* Change the partstat from NEEDS-ACTION to ACCEPT or DECLINE */
238 icalproperty_remove_parameter(me_attend, ICAL_PARTSTAT_PARAMETER);
240 if (!strcasecmp(action, "accept")) {
241 partstat = icalparameter_new_partstat(ICAL_PARTSTAT_ACCEPTED);
243 else if (!strcasecmp(action, "decline")) {
244 partstat = icalparameter_new_partstat(ICAL_PARTSTAT_DECLINED);
246 else if (!strcasecmp(action, "tentative")) {
247 partstat = icalparameter_new_partstat(ICAL_PARTSTAT_TENTATIVE);
250 if (partstat) icalproperty_add_parameter(me_attend, partstat);
252 /* Now insert it back into the vevent. */
253 icalcomponent_add_property(vevent, me_attend);
256 /* Figure out who to send this thing to */
257 organizer = icalcomponent_get_first_property(vevent, ICAL_ORGANIZER_PROPERTY);
258 if (organizer != NULL) {
259 if (icalproperty_get_organizer(organizer)) {
260 strcpy(organizer_string,
261 icalproperty_get_organizer(organizer) );
264 if (!strncasecmp(organizer_string, "MAILTO:", 7)) {
265 strcpy(organizer_string, &organizer_string[7]);
266 striplt(organizer_string);
268 strcpy(organizer_string, "");
271 /* Extract the summary string -- we'll use it as the
272 * message subject for the reply
274 summary = icalcomponent_get_first_property(vevent, ICAL_SUMMARY_PROPERTY);
275 if (summary != NULL) {
276 if (icalproperty_get_summary(summary)) {
277 strcpy(summary_string,
278 icalproperty_get_summary(summary) );
283 /* Now generate the reply message and send it out. */
284 serialized_reply = icalcomponent_as_ical_string_r(the_reply);
285 icalcomponent_free(the_reply); /* don't need this anymore */
286 if (serialized_reply == NULL) return;
288 reply_message_text = malloc(strlen(serialized_reply) + SIZ);
289 if (reply_message_text != NULL) {
290 sprintf(reply_message_text,
291 "Content-type: text/calendar; charset=\"utf-8\"\r\n\r\n%s\r\n",
295 msg = CtdlMakeMessage(&CC->user,
296 organizer_string, /* to */
298 CC->room.QRname, 0, FMT_RFC822,
301 summary_string, /* Use summary for subject */
307 valid = validate_recipients(organizer_string, NULL, 0);
308 CtdlSubmitMsg(msg, valid, "", QP_EADDR);
309 CtdlFreeMessage(msg);
310 free_recipients(valid);
313 free(serialized_reply);
319 * Callback function for mime parser that hunts for calendar content types
320 * and turns them into calendar objects
322 void ical_locate_part(char *name, char *filename, char *partnum, char *disp,
323 void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
324 char *cbid, void *cbuserdata) {
326 struct ical_respond_data *ird = NULL;
328 ird = (struct ical_respond_data *) cbuserdata;
330 /* desired_partnum can be set to "_HUNT_" to have it just look for
331 * the first part with a content type of text/calendar. Otherwise
332 * we have to only process the right one.
334 if (strcasecmp(ird->desired_partnum, "_HUNT_")) {
335 if (strcasecmp(partnum, ird->desired_partnum)) {
340 if ( (strcasecmp(cbtype, "text/calendar"))
341 && (strcasecmp(cbtype, "application/ics")) ) {
345 if (ird->cal != NULL) {
346 icalcomponent_free(ird->cal);
350 ird->cal = icalcomponent_new_from_string(content);
355 * Respond to a meeting request.
357 void ical_respond(long msgnum, char *partnum, char *action) {
358 struct CtdlMessage *msg = NULL;
359 struct ical_respond_data ird;
362 (strcasecmp(action, "accept"))
363 && (strcasecmp(action, "decline"))
365 cprintf("%d Action must be 'accept' or 'decline'\n",
366 ERROR + ILLEGAL_VALUE
371 msg = CtdlFetchMessage(msgnum, 1);
373 cprintf("%d Message %ld not found.\n",
374 ERROR + ILLEGAL_VALUE,
380 memset(&ird, 0, sizeof ird);
381 strcpy(ird.desired_partnum, partnum);
382 mime_parser(msg->cm_fields['M'],
384 *ical_locate_part, /* callback function */
386 (void *) &ird, /* user data */
390 /* We're done with the incoming message, because we now have a
391 * calendar object in memory.
393 CtdlFreeMessage(msg);
396 * Here is the real meat of this function. Handle the event.
398 if (ird.cal != NULL) {
399 /* Save this in the user's calendar if necessary */
400 if (!strcasecmp(action, "accept")) {
401 ical_write_to_cal(&CC->user, ird.cal);
404 /* Send a reply if necessary */
405 if (icalcomponent_get_method(ird.cal) == ICAL_METHOD_REQUEST) {
406 ical_send_a_reply(ird.cal, action);
409 /* We used to delete the invitation after handling it.
410 * We don't do that anymore, but here is the code that handled it:
411 * CtdlDeleteMessages(CC->room.QRname, &msgnum, 1, "");
414 /* Free the memory we allocated and return a response. */
415 icalcomponent_free(ird.cal);
417 cprintf("%d ok\n", CIT_OK);
421 cprintf("%d No calendar object found\n", ERROR + ROOM_NOT_FOUND);
425 /* should never get here */
430 * Figure out the UID of the calendar event being referred to in a
431 * REPLY object. This function is recursive.
433 void ical_learn_uid_of_reply(char *uidbuf, icalcomponent *cal) {
434 icalcomponent *subcomponent;
437 /* If this object is a REPLY, then extract the UID. */
438 if (icalcomponent_isa(cal) == ICAL_VEVENT_COMPONENT) {
439 p = icalcomponent_get_first_property(cal, ICAL_UID_PROPERTY);
441 strcpy(uidbuf, icalproperty_get_comment(p));
445 /* Otherwise, recurse through any VEVENT subcomponents. We do NOT want the
446 * UID of the reply; we want the UID of the invitation being replied to.
448 for (subcomponent = icalcomponent_get_first_component(cal, ICAL_VEVENT_COMPONENT);
449 subcomponent != NULL;
450 subcomponent = icalcomponent_get_next_component(cal, ICAL_VEVENT_COMPONENT) ) {
451 ical_learn_uid_of_reply(uidbuf, subcomponent);
457 * ical_update_my_calendar_with_reply() refers to this callback function; when we
458 * locate the message containing the calendar event we're replying to, this function
459 * gets called. It basically just sticks the message number in a supplied buffer.
461 void ical_hunt_for_event_to_update(long msgnum, void *data) {
464 msgnumptr = (long *) data;
469 struct original_event_container {
474 * Callback function for mime parser that hunts for calendar content types
475 * and turns them into calendar objects (called by ical_update_my_calendar_with_reply()
476 * to fetch the object being updated)
478 void ical_locate_original_event(char *name, char *filename, char *partnum, char *disp,
479 void *content, char *cbtype, char *cbcharset, size_t length, char *encoding,
480 char *cbid, void *cbuserdata) {
482 struct original_event_container *oec = NULL;
484 if ( (strcasecmp(cbtype, "text/calendar"))
485 && (strcasecmp(cbtype, "application/ics")) ) {
488 oec = (struct original_event_container *) cbuserdata;
489 if (oec->c != NULL) {
490 icalcomponent_free(oec->c);
492 oec->c = icalcomponent_new_from_string(content);
497 * Merge updated attendee information from a REPLY into an existing event.
499 void ical_merge_attendee_reply(icalcomponent *event, icalcomponent *reply) {
501 icalproperty *e_attendee, *r_attendee;
503 /* First things first. If we're not looking at a VEVENT component,
504 * recurse through subcomponents until we find one.
506 if (icalcomponent_isa(event) != ICAL_VEVENT_COMPONENT) {
507 for (c = icalcomponent_get_first_component(event, ICAL_VEVENT_COMPONENT);
509 c = icalcomponent_get_next_component(event, ICAL_VEVENT_COMPONENT) ) {
510 ical_merge_attendee_reply(c, reply);
515 /* Now do the same thing with the reply.
517 if (icalcomponent_isa(reply) != ICAL_VEVENT_COMPONENT) {
518 for (c = icalcomponent_get_first_component(reply, ICAL_VEVENT_COMPONENT);
520 c = icalcomponent_get_next_component(reply, ICAL_VEVENT_COMPONENT) ) {
521 ical_merge_attendee_reply(event, c);
526 /* Clone the reply, because we're going to rip its guts out. */
527 reply = icalcomponent_new_clone(reply);
529 /* At this point we're looking at the correct subcomponents.
530 * Iterate through the attendees looking for a match.
533 for (e_attendee = icalcomponent_get_first_property(event, ICAL_ATTENDEE_PROPERTY);
535 e_attendee = icalcomponent_get_next_property(event, ICAL_ATTENDEE_PROPERTY)) {
537 for (r_attendee = icalcomponent_get_first_property(reply, ICAL_ATTENDEE_PROPERTY);
539 r_attendee = icalcomponent_get_next_property(reply, ICAL_ATTENDEE_PROPERTY)) {
541 /* Check to see if these two attendees match...
544 icalproperty_get_attendee(e_attendee),
545 icalproperty_get_attendee(r_attendee)
547 /* ...and if they do, remove the attendee from the event
548 * and replace it with the attendee from the reply. (The
549 * reply's copy will have the same address, but an updated
552 icalcomponent_remove_property(event, e_attendee);
553 icalproperty_free(e_attendee);
554 icalcomponent_remove_property(reply, r_attendee);
555 icalcomponent_add_property(event, r_attendee);
557 /* Since we diddled both sets of attendees, we have to start
558 * the iteration over again. This will not create an infinite
559 * loop because we removed the attendee from the reply. (That's
560 * why we cloned the reply, and that's what we mean by "ripping
569 /* Free the *clone* of the reply. */
570 icalcomponent_free(reply);
577 * Handle an incoming RSVP (object with method==ICAL_METHOD_REPLY) for a
578 * calendar event. The object has already been deserialized for us; all
579 * we have to do here is hunt for the event in our calendar, merge in the
580 * updated attendee status, and save it again.
582 * This function returns 0 on success, 1 if the event was not found in the
583 * user's calendar, or 2 if an internal error occurred.
585 int ical_update_my_calendar_with_reply(icalcomponent *cal) {
587 char hold_rm[ROOMNAMELEN];
588 long msgnum_being_replaced = 0;
589 struct CtdlMessage *msg = NULL;
590 struct original_event_container oec;
591 icalcomponent *original_event;
592 char *serialized_event = NULL;
593 char roomname[ROOMNAMELEN];
594 char *message_text = NULL;
596 /* Figure out just what event it is we're dealing with */
597 strcpy(uid, "--==<< InVaLiD uId >>==--");
598 ical_learn_uid_of_reply(uid, cal);
599 CtdlLogPrintf(CTDL_DEBUG, "UID of event being replied to is <%s>\n", uid);
601 strcpy(hold_rm, CC->room.QRname); /* save current room */
603 if (getroom(&CC->room, USERCALENDARROOM) != 0) {
604 getroom(&CC->room, hold_rm);
605 CtdlLogPrintf(CTDL_CRIT, "cannot get user calendar room\n");
610 * Look in the EUID index for a message with
611 * the Citadel EUID set to the value we're looking for. Since
612 * Citadel always sets the message EUID to the iCalendar UID of
613 * the event, this will work.
615 msgnum_being_replaced = locate_message_by_euid(uid, &CC->room);
617 getroom(&CC->room, hold_rm); /* return to saved room */
619 CtdlLogPrintf(CTDL_DEBUG, "msgnum_being_replaced == %ld\n", msgnum_being_replaced);
620 if (msgnum_being_replaced == 0) {
621 return(1); /* no calendar event found */
624 /* Now we know the ID of the message containing the event being updated.
625 * We don't actually have to delete it; that'll get taken care of by the
626 * server when we save another event with the same UID. This just gives
627 * us the ability to load the event into memory so we can diddle the
630 msg = CtdlFetchMessage(msgnum_being_replaced, 1);
632 return(2); /* internal error */
635 mime_parser(msg->cm_fields['M'],
637 *ical_locate_original_event, /* callback function */
639 &oec, /* user data */
642 CtdlFreeMessage(msg);
644 original_event = oec.c;
645 if (original_event == NULL) {
646 CtdlLogPrintf(CTDL_ERR, "ERROR: Original_component is NULL.\n");
650 /* Merge the attendee's updated status into the event */
651 ical_merge_attendee_reply(original_event, cal);
654 serialized_event = icalcomponent_as_ical_string_r(original_event);
655 icalcomponent_free(original_event); /* Don't need this anymore. */
656 if (serialized_event == NULL) return(2);
658 MailboxName(roomname, sizeof roomname, &CC->user, USERCALENDARROOM);
660 message_text = malloc(strlen(serialized_event) + SIZ);
661 if (message_text != NULL) {
662 sprintf(message_text,
663 "Content-type: text/calendar; charset=\"utf-8\"\r\n\r\n%s\r\n",
667 msg = CtdlMakeMessage(&CC->user,
668 "", /* No recipient */
669 "", /* No recipient */
680 CIT_ICAL->avoid_sending_invitations = 1;
681 CtdlSubmitMsg(msg, NULL, roomname, QP_EADDR);
682 CtdlFreeMessage(msg);
683 CIT_ICAL->avoid_sending_invitations = 0;
686 free(serialized_event);
692 * Handle an incoming RSVP for an event. (This is the server subcommand part; it
693 * simply extracts the calendar object from the message, deserializes it, and
694 * passes it up to ical_update_my_calendar_with_reply() for processing.
696 void ical_handle_rsvp(long msgnum, char *partnum, char *action) {
697 struct CtdlMessage *msg = NULL;
698 struct ical_respond_data ird;
702 (strcasecmp(action, "update"))
703 && (strcasecmp(action, "ignore"))
705 cprintf("%d Action must be 'update' or 'ignore'\n",
706 ERROR + ILLEGAL_VALUE
711 msg = CtdlFetchMessage(msgnum, 1);
713 cprintf("%d Message %ld not found.\n",
714 ERROR + ILLEGAL_VALUE,
720 memset(&ird, 0, sizeof ird);
721 strcpy(ird.desired_partnum, partnum);
722 mime_parser(msg->cm_fields['M'],
724 *ical_locate_part, /* callback function */
726 (void *) &ird, /* user data */
730 /* We're done with the incoming message, because we now have a
731 * calendar object in memory.
733 CtdlFreeMessage(msg);
736 * Here is the real meat of this function. Handle the event.
738 if (ird.cal != NULL) {
739 /* Update the user's calendar if necessary */
740 if (!strcasecmp(action, "update")) {
741 ret = ical_update_my_calendar_with_reply(ird.cal);
743 cprintf("%d Your calendar has been updated with this reply.\n",
747 cprintf("%d This event does not exist in your calendar.\n",
748 ERROR + FILE_NOT_FOUND);
751 cprintf("%d An internal error occurred.\n",
752 ERROR + INTERNAL_ERROR);
756 cprintf("%d This reply has been ignored.\n", CIT_OK);
759 /* Now that we've processed this message, we don't need it
760 * anymore. So delete it. (Don't do this anymore.)
761 CtdlDeleteMessages(CC->room.QRname, &msgnum, 1, "");
764 /* Free the memory we allocated and return a response. */
765 icalcomponent_free(ird.cal);
770 cprintf("%d No calendar object found\n", ERROR + ROOM_NOT_FOUND);
774 /* should never get here */
779 * Search for a property in both the top level and in a VEVENT subcomponent
781 icalproperty *ical_ctdl_get_subprop(
783 icalproperty_kind which_prop
788 p = icalcomponent_get_first_property(cal, which_prop);
790 c = icalcomponent_get_first_component(cal,
791 ICAL_VEVENT_COMPONENT);
793 p = icalcomponent_get_first_property(c, which_prop);
801 * Check to see if two events overlap. Returns nonzero if they do.
802 * (This function is used in both Citadel and WebCit. If you change it in
803 * one place, change it in the other. Better yet, put it in a library.)
805 int ical_ctdl_is_overlap(
806 struct icaltimetype t1start,
807 struct icaltimetype t1end,
808 struct icaltimetype t2start,
809 struct icaltimetype t2end
812 if (icaltime_is_null_time(t1start)) return(0);
813 if (icaltime_is_null_time(t2start)) return(0);
815 /* First, check for all-day events */
816 if (t1start.is_date) {
817 if (!icaltime_compare_date_only(t1start, t2start)) {
820 if (!icaltime_is_null_time(t2end)) {
821 if (!icaltime_compare_date_only(t1start, t2end)) {
827 if (t2start.is_date) {
828 if (!icaltime_compare_date_only(t2start, t1start)) {
831 if (!icaltime_is_null_time(t1end)) {
832 if (!icaltime_compare_date_only(t2start, t1end)) {
838 /* Now check for overlaps using date *and* time. */
840 /* First, bail out if either event 1 or event 2 is missing end time. */
841 if (icaltime_is_null_time(t1end)) return(0);
842 if (icaltime_is_null_time(t2end)) return(0);
844 /* If event 1 ends before event 2 starts, we're in the clear. */
845 if (icaltime_compare(t1end, t2start) <= 0) return(0);
847 /* If event 2 ends before event 1 starts, we're also ok. */
848 if (icaltime_compare(t2end, t1start) <= 0) return(0);
850 /* Otherwise, they overlap. */
857 * Phase 6 of "hunt for conflicts"
858 * called by ical_conflicts_phase5()
860 * Now both the proposed and existing events have been boiled down to start and end times.
861 * Check for overlap and output any conflicts.
863 void ical_conflicts_phase6(struct icaltimetype t1start,
864 struct icaltimetype t1end,
865 struct icaltimetype t2start,
866 struct icaltimetype t2end,
867 long existing_msgnum,
868 char *conflict_event_uid,
869 char *conflict_event_summary,
873 /* debugging cruft */
875 // tt = icaltime_as_timet(t1start);
876 // CtdlLogPrintf(CTDL_DEBUG, "PROPOSED START: %s", ctime(&tt));
877 // tt = icaltime_as_timet(t1end);
878 // CtdlLogPrintf(CTDL_DEBUG, " PROPOSED END: %s", ctime(&tt));
879 // tt = icaltime_as_timet(t2start);
880 // CtdlLogPrintf(CTDL_DEBUG, "EXISTING START: %s", ctime(&tt));
881 // tt = icaltime_as_timet(t2end);
882 // CtdlLogPrintf(CTDL_DEBUG, " EXISTING END: %s", ctime(&tt));
884 /* compare and output */
886 if (ical_ctdl_is_overlap(t1start, t1end, t2start, t2end)) {
887 cprintf("%ld||%s|%s|%d|\n",
890 conflict_event_summary,
891 ( ((strlen(compare_uid)>0)
892 &&(!strcasecmp(compare_uid,
893 conflict_event_uid))) ? 1 : 0
903 * Phase 5 of "hunt for conflicts"
904 * Called by ical_conflicts_phase4()
906 * We have the proposed event boiled down to start and end times.
907 * Now check it against an existing event.
909 void ical_conflicts_phase5(struct icaltimetype t1start,
910 struct icaltimetype t1end,
911 icalcomponent *existing_event,
912 long existing_msgnum,
915 char conflict_event_uid[SIZ];
916 char conflict_event_summary[SIZ];
917 struct icaltimetype t2start, t2end;
920 /* recur variables */
921 icalproperty *rrule = NULL;
922 struct icalrecurrencetype recur;
923 icalrecur_iterator *ritr = NULL;
924 struct icaldurationtype dur;
928 strcpy(conflict_event_uid, "");
929 strcpy(conflict_event_summary, "");
930 t2start = icaltime_null_time();
931 t2end = icaltime_null_time();
933 /* existing event stuff */
934 p = ical_ctdl_get_subprop(existing_event, ICAL_DTSTART_PROPERTY);
935 if (p == NULL) return;
936 if (p != NULL) t2start = icalproperty_get_dtstart(p);
938 p = ical_ctdl_get_subprop(existing_event, ICAL_DTEND_PROPERTY);
940 t2end = icalproperty_get_dtend(p);
941 dur = icaltime_subtract(t2end, t2start);
944 rrule = ical_ctdl_get_subprop(existing_event, ICAL_RRULE_PROPERTY);
946 recur = icalproperty_get_rrule(rrule);
947 ritr = icalrecur_iterator_new(recur, t2start);
948 CtdlLogPrintf(CTDL_DEBUG, "Recurrence found: %s\n", icalrecurrencetype_as_string(&recur));
952 p = ical_ctdl_get_subprop(existing_event, ICAL_UID_PROPERTY);
954 strcpy(conflict_event_uid, icalproperty_get_comment(p));
957 p = ical_ctdl_get_subprop(existing_event, ICAL_SUMMARY_PROPERTY);
959 strcpy(conflict_event_summary, icalproperty_get_comment(p));
962 ical_conflicts_phase6(t1start, t1end, t2start, t2end,
963 existing_msgnum, conflict_event_uid, conflict_event_summary, compare_uid
967 t2start = icalrecur_iterator_next(ritr);
968 if (!icaltime_is_null_time(t2end)) {
969 t2end = icaltime_add(t2start, dur);
974 } while ( (rrule) && (!icaltime_is_null_time(t2start)) && (num_recur < MAX_RECUR) );
975 icalrecur_iterator_free(ritr);
976 if (num_recur > 0) CtdlLogPrintf(CTDL_DEBUG, "Iterated over existing event %d times.\n", num_recur);
983 * Phase 4 of "hunt for conflicts"
984 * Called by ical_hunt_for_conflicts_backend()
986 * At this point we've got it boiled down to two icalcomponent events in memory.
987 * If they conflict, output something to the client.
989 void ical_conflicts_phase4(icalcomponent *proposed_event,
990 icalcomponent *existing_event,
991 long existing_msgnum)
993 struct icaltimetype t1start, t1end;
994 t1start = icaltime_null_time();
995 t1end = icaltime_null_time();
997 char compare_uid[SIZ];
999 /* recur variables */
1000 icalproperty *rrule = NULL;
1001 struct icalrecurrencetype recur;
1002 icalrecur_iterator *ritr = NULL;
1003 struct icaldurationtype dur;
1006 /* initialization */
1007 strcpy(compare_uid, "");
1009 /* proposed event stuff */
1011 p = ical_ctdl_get_subprop(proposed_event, ICAL_DTSTART_PROPERTY);
1012 if (p == NULL) return;
1013 if (p != NULL) t1start = icalproperty_get_dtstart(p);
1015 p = ical_ctdl_get_subprop(proposed_event, ICAL_DTEND_PROPERTY);
1017 t1end = icalproperty_get_dtend(p);
1018 dur = icaltime_subtract(t1end, t1start);
1021 rrule = ical_ctdl_get_subprop(proposed_event, ICAL_RRULE_PROPERTY);
1023 recur = icalproperty_get_rrule(rrule);
1024 ritr = icalrecur_iterator_new(recur, t1start);
1025 CtdlLogPrintf(CTDL_DEBUG, "Recurrence found: %s\n", icalrecurrencetype_as_string(&recur));
1028 p = ical_ctdl_get_subprop(proposed_event, ICAL_UID_PROPERTY);
1030 strcpy(compare_uid, icalproperty_get_comment(p));
1034 ical_conflicts_phase5(t1start, t1end, existing_event, existing_msgnum, compare_uid);
1037 t1start = icalrecur_iterator_next(ritr);
1038 if (!icaltime_is_null_time(t1end)) {
1039 t1end = icaltime_add(t1start, dur);
1044 } while ( (rrule) && (!icaltime_is_null_time(t1start)) && (num_recur < MAX_RECUR) );
1045 icalrecur_iterator_free(ritr);
1046 if (num_recur > 0) CtdlLogPrintf(CTDL_DEBUG, "Iterated over proposed event %d times.\n", num_recur);
1052 * Phase 3 of "hunt for conflicts"
1053 * Called by ical_hunt_for_conflicts()
1055 void ical_hunt_for_conflicts_backend(long msgnum, void *data) {
1056 icalcomponent *proposed_event;
1057 struct CtdlMessage *msg = NULL;
1058 struct ical_respond_data ird;
1060 proposed_event = (icalcomponent *)data;
1062 msg = CtdlFetchMessage(msgnum, 1);
1063 if (msg == NULL) return;
1064 memset(&ird, 0, sizeof ird);
1065 strcpy(ird.desired_partnum, "_HUNT_");
1066 mime_parser(msg->cm_fields['M'],
1068 *ical_locate_part, /* callback function */
1070 (void *) &ird, /* user data */
1073 CtdlFreeMessage(msg);
1075 if (ird.cal == NULL) return;
1077 ical_conflicts_phase4(proposed_event, ird.cal, msgnum);
1078 icalcomponent_free(ird.cal);
1084 * Phase 2 of "hunt for conflicts" operation.
1085 * At this point we have a calendar object which represents the VEVENT that
1086 * is proposed for addition to the calendar. Now hunt through the user's
1087 * calendar room, and output zero or more existing VEVENTs which conflict
1090 void ical_hunt_for_conflicts(icalcomponent *cal) {
1091 char hold_rm[ROOMNAMELEN];
1093 strcpy(hold_rm, CC->room.QRname); /* save current room */
1095 if (getroom(&CC->room, USERCALENDARROOM) != 0) {
1096 getroom(&CC->room, hold_rm);
1097 cprintf("%d You do not have a calendar.\n", ERROR + ROOM_NOT_FOUND);
1101 cprintf("%d Conflicting events:\n", LISTING_FOLLOWS);
1103 CtdlForEachMessage(MSGS_ALL, 0, NULL,
1106 ical_hunt_for_conflicts_backend,
1111 getroom(&CC->room, hold_rm); /* return to saved room */
1118 * Hunt for conflicts (Phase 1 -- retrieve the object and call Phase 2)
1120 void ical_conflicts(long msgnum, char *partnum) {
1121 struct CtdlMessage *msg = NULL;
1122 struct ical_respond_data ird;
1124 msg = CtdlFetchMessage(msgnum, 1);
1126 cprintf("%d Message %ld not found.\n",
1127 ERROR + ILLEGAL_VALUE,
1133 memset(&ird, 0, sizeof ird);
1134 strcpy(ird.desired_partnum, partnum);
1135 mime_parser(msg->cm_fields['M'],
1137 *ical_locate_part, /* callback function */
1139 (void *) &ird, /* user data */
1143 CtdlFreeMessage(msg);
1145 if (ird.cal != NULL) {
1146 ical_hunt_for_conflicts(ird.cal);
1147 icalcomponent_free(ird.cal);
1151 cprintf("%d No calendar object found\n", ERROR + ROOM_NOT_FOUND);
1155 /* should never get here */
1161 * Look for busy time in a VEVENT and add it to the supplied VFREEBUSY.
1163 void ical_add_to_freebusy(icalcomponent *fb, icalcomponent *cal) {
1166 struct icalperiodtype my_period;
1168 if (cal == NULL) return;
1169 my_period = icalperiodtype_null_period();
1171 if (icalcomponent_isa(cal) != ICAL_VEVENT_COMPONENT) {
1172 ical_add_to_freebusy(fb,
1173 icalcomponent_get_first_component(
1174 cal, ICAL_VEVENT_COMPONENT
1180 /* If this event is not opaque, the user isn't publishing it as
1181 * busy time, so don't bother doing anything else.
1183 p = icalcomponent_get_first_property(cal, ICAL_TRANSP_PROPERTY);
1185 v = icalproperty_get_value(p);
1187 if (icalvalue_get_transp(v) != ICAL_TRANSP_OPAQUE) {
1193 /* Convert the DTSTART and DTEND properties to an icalperiod. */
1194 p = icalcomponent_get_first_property(cal, ICAL_DTSTART_PROPERTY);
1196 my_period.start = icalproperty_get_dtstart(p);
1199 p = icalcomponent_get_first_property(cal, ICAL_DTEND_PROPERTY);
1201 my_period.end = icalproperty_get_dtstart(p);
1205 icalcomponent_add_property(fb,
1206 icalproperty_new_freebusy(my_period)
1209 /* Make sure the DTSTART property of the freebusy *list* is set to
1210 * the DTSTART property of the *earliest event*.
1212 p = icalcomponent_get_first_property(fb, ICAL_DTSTART_PROPERTY);
1214 icalcomponent_set_dtstart(fb,
1215 icalcomponent_get_dtstart(cal) );
1218 if (icaltime_compare(
1219 icalcomponent_get_dtstart(cal),
1220 icalcomponent_get_dtstart(fb)
1222 icalcomponent_set_dtstart(fb,
1223 icalcomponent_get_dtstart(cal) );
1227 /* Make sure the DTEND property of the freebusy *list* is set to
1228 * the DTEND property of the *latest event*.
1230 p = icalcomponent_get_first_property(fb, ICAL_DTEND_PROPERTY);
1232 icalcomponent_set_dtend(fb,
1233 icalcomponent_get_dtend(cal) );
1236 if (icaltime_compare(
1237 icalcomponent_get_dtend(cal),
1238 icalcomponent_get_dtend(fb)
1240 icalcomponent_set_dtend(fb,
1241 icalcomponent_get_dtend(cal) );
1250 * Backend for ical_freebusy()
1252 * This function simply loads the messages in the user's calendar room,
1253 * which contain VEVENTs, then strips them of all non-freebusy data, and
1254 * adds them to the supplied VCALENDAR.
1257 void ical_freebusy_backend(long msgnum, void *data) {
1259 struct CtdlMessage *msg = NULL;
1260 struct ical_respond_data ird;
1262 cal = (icalcomponent *)data;
1264 msg = CtdlFetchMessage(msgnum, 1);
1265 if (msg == NULL) return;
1266 memset(&ird, 0, sizeof ird);
1267 strcpy(ird.desired_partnum, "_HUNT_");
1268 mime_parser(msg->cm_fields['M'],
1270 *ical_locate_part, /* callback function */
1272 (void *) &ird, /* user data */
1275 CtdlFreeMessage(msg);
1277 if (ird.cal == NULL) return;
1279 ical_add_to_freebusy(cal, ird.cal);
1281 /* Now free the memory. */
1282 icalcomponent_free(ird.cal);
1288 * Grab another user's free/busy times
1290 void ical_freebusy(char *who) {
1291 struct ctdluser usbuf;
1292 char calendar_room_name[ROOMNAMELEN];
1293 char hold_rm[ROOMNAMELEN];
1294 char *serialized_request = NULL;
1295 icalcomponent *encaps = NULL;
1296 icalcomponent *fb = NULL;
1297 int found_user = (-1);
1298 struct recptypes *recp = NULL;
1303 int config_lines = 0;
1305 /* First try an exact match. */
1306 found_user = getuser(&usbuf, who);
1308 /* If not found, try it as an unqualified email address. */
1309 if (found_user != 0) {
1311 recp = validate_recipients(buf, NULL, 0);
1312 CtdlLogPrintf(CTDL_DEBUG, "Trying <%s>\n", buf);
1314 if (recp->num_local == 1) {
1315 found_user = getuser(&usbuf, recp->recp_local);
1317 free_recipients(recp);
1321 /* If still not found, try it as an address qualified with the
1322 * primary FQDN of this Citadel node.
1324 if (found_user != 0) {
1325 snprintf(buf, sizeof buf, "%s@%s", who, config.c_fqdn);
1326 CtdlLogPrintf(CTDL_DEBUG, "Trying <%s>\n", buf);
1327 recp = validate_recipients(buf, NULL, 0);
1329 if (recp->num_local == 1) {
1330 found_user = getuser(&usbuf, recp->recp_local);
1332 free_recipients(recp);
1336 /* Still not found? Try qualifying it with every domain we
1337 * might have addresses in.
1339 if (found_user != 0) {
1340 config_lines = num_tokens(inetcfg, '\n');
1341 for (i=0; ((i < config_lines) && (found_user != 0)); ++i) {
1342 extract_token(buf, inetcfg, i, '\n', sizeof buf);
1343 extract_token(host, buf, 0, '|', sizeof host);
1344 extract_token(type, buf, 1, '|', sizeof type);
1346 if ( (!strcasecmp(type, "localhost"))
1347 || (!strcasecmp(type, "directory")) ) {
1348 snprintf(buf, sizeof buf, "%s@%s", who, host);
1349 CtdlLogPrintf(CTDL_DEBUG, "Trying <%s>\n", buf);
1350 recp = validate_recipients(buf, NULL, 0);
1352 if (recp->num_local == 1) {
1353 found_user = getuser(&usbuf, recp->recp_local);
1355 free_recipients(recp);
1361 if (found_user != 0) {
1362 cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
1366 MailboxName(calendar_room_name, sizeof calendar_room_name,
1367 &usbuf, USERCALENDARROOM);
1369 strcpy(hold_rm, CC->room.QRname); /* save current room */
1371 if (getroom(&CC->room, calendar_room_name) != 0) {
1372 cprintf("%d Cannot open calendar\n", ERROR + ROOM_NOT_FOUND);
1373 getroom(&CC->room, hold_rm);
1377 /* Create a VFREEBUSY subcomponent */
1378 CtdlLogPrintf(CTDL_DEBUG, "Creating VFREEBUSY component\n");
1379 fb = icalcomponent_new_vfreebusy();
1381 cprintf("%d Internal error: cannot allocate memory.\n",
1382 ERROR + INTERNAL_ERROR);
1383 getroom(&CC->room, hold_rm);
1387 /* Set the method to PUBLISH */
1388 icalcomponent_set_method(fb, ICAL_METHOD_PUBLISH);
1390 /* Set the DTSTAMP to right now. */
1391 icalcomponent_set_dtstamp(fb, icaltime_from_timet(time(NULL), 0));
1393 /* Add the user's email address as ORGANIZER */
1394 sprintf(buf, "MAILTO:%s", who);
1395 if (strchr(buf, '@') == NULL) {
1397 strcat(buf, config.c_fqdn);
1399 for (i=0; buf[i]; ++i) {
1400 if (buf[i]==' ') buf[i] = '_';
1402 icalcomponent_add_property(fb, icalproperty_new_organizer(buf));
1404 /* Add busy time from events */
1405 CtdlLogPrintf(CTDL_DEBUG, "Adding busy time from events\n");
1406 CtdlForEachMessage(MSGS_ALL, 0, NULL, NULL, NULL, ical_freebusy_backend, (void *)fb );
1408 /* If values for DTSTART and DTEND are still not present, set them
1409 * to yesterday and tomorrow as default values.
1411 if (icalcomponent_get_first_property(fb, ICAL_DTSTART_PROPERTY) == NULL) {
1412 icalcomponent_set_dtstart(fb, icaltime_from_timet(time(NULL)-86400L, 0));
1414 if (icalcomponent_get_first_property(fb, ICAL_DTEND_PROPERTY) == NULL) {
1415 icalcomponent_set_dtend(fb, icaltime_from_timet(time(NULL)+86400L, 0));
1418 /* Put the freebusy component into the calendar component */
1419 CtdlLogPrintf(CTDL_DEBUG, "Encapsulating\n");
1420 encaps = ical_encapsulate_subcomponent(fb);
1421 if (encaps == NULL) {
1422 icalcomponent_free(fb);
1423 cprintf("%d Internal error: cannot allocate memory.\n",
1424 ERROR + INTERNAL_ERROR);
1425 getroom(&CC->room, hold_rm);
1429 /* Set the method to PUBLISH */
1430 CtdlLogPrintf(CTDL_DEBUG, "Setting method\n");
1431 icalcomponent_set_method(encaps, ICAL_METHOD_PUBLISH);
1434 CtdlLogPrintf(CTDL_DEBUG, "Serializing\n");
1435 serialized_request = icalcomponent_as_ical_string_r(encaps);
1436 icalcomponent_free(encaps); /* Don't need this anymore. */
1438 cprintf("%d Here is the free/busy data:\n", LISTING_FOLLOWS);
1439 if (serialized_request != NULL) {
1440 client_write(serialized_request, strlen(serialized_request));
1441 free(serialized_request);
1445 /* Go back to the room from which we came... */
1446 getroom(&CC->room, hold_rm);
1452 * Backend for ical_getics()
1454 * This is a ForEachMessage() callback function that searches the current room
1455 * for calendar events and adds them each into one big calendar component.
1457 void ical_getics_backend(long msgnum, void *data) {
1458 icalcomponent *encaps, *c;
1459 struct CtdlMessage *msg = NULL;
1460 struct ical_respond_data ird;
1462 encaps = (icalcomponent *)data;
1463 if (encaps == NULL) return;
1465 /* Look for the calendar event... */
1467 msg = CtdlFetchMessage(msgnum, 1);
1468 if (msg == NULL) return;
1469 memset(&ird, 0, sizeof ird);
1470 strcpy(ird.desired_partnum, "_HUNT_");
1471 mime_parser(msg->cm_fields['M'],
1473 *ical_locate_part, /* callback function */
1475 (void *) &ird, /* user data */
1478 CtdlFreeMessage(msg);
1480 if (ird.cal == NULL) return;
1482 /* Here we go: put the VEVENT into the VCALENDAR. We now no longer
1483 * are responsible for "the_request"'s memory -- it will be freed
1484 * when we free "encaps".
1487 /* If the top-level component is *not* a VCALENDAR, we can drop it right
1488 * in. This will almost never happen.
1490 if (icalcomponent_isa(ird.cal) != ICAL_VCALENDAR_COMPONENT) {
1491 icalcomponent_add_component(encaps, ird.cal);
1494 * In the more likely event that we're looking at a VCALENDAR with the VEVENT
1495 * and other components encapsulated inside, we have to extract them.
1498 for (c = icalcomponent_get_first_component(ird.cal, ICAL_ANY_COMPONENT);
1500 c = icalcomponent_get_next_component(ird.cal, ICAL_ANY_COMPONENT)) {
1501 icalcomponent_add_component(encaps, icalcomponent_new_clone(c));
1503 icalcomponent_free(ird.cal);
1510 * Retrieve all of the calendar items in the current room, and output them
1511 * as a single icalendar object.
1513 void ical_getics(void)
1515 icalcomponent *encaps = NULL;
1518 if ( (CC->room.QRdefaultview != VIEW_CALENDAR)
1519 &&(CC->room.QRdefaultview != VIEW_TASKS) ) {
1520 cprintf("%d Not a calendar room\n", ERROR+NOT_HERE);
1521 return; /* Not an iCalendar-centric room */
1524 encaps = icalcomponent_new_vcalendar();
1525 if (encaps == NULL) {
1526 CtdlLogPrintf(CTDL_DEBUG, "Error at %s:%d - could not allocate component!\n",
1527 __FILE__, __LINE__);
1528 cprintf("%d Could not allocate memory\n", ERROR+INTERNAL_ERROR);
1532 cprintf("%d one big calendar\n", LISTING_FOLLOWS);
1534 /* Set the Product ID */
1535 icalcomponent_add_property(encaps, icalproperty_new_prodid(PRODID));
1537 /* Set the Version Number */
1538 icalcomponent_add_property(encaps, icalproperty_new_version("2.0"));
1540 /* Set the method to PUBLISH */
1541 icalcomponent_set_method(encaps, ICAL_METHOD_PUBLISH);
1543 /* Now go through the room encapsulating all calendar items. */
1544 CtdlForEachMessage(MSGS_ALL, 0, NULL,
1547 ical_getics_backend,
1551 ser = icalcomponent_as_ical_string_r(encaps);
1552 client_write(ser, strlen(ser));
1555 icalcomponent_free(encaps); /* Don't need this anymore. */
1561 * Delete all of the calendar items in the current room, and replace them
1562 * with calendar items from a client-supplied data stream.
1564 void ical_putics(void)
1566 char *calstream = NULL;
1570 if ( (CC->room.QRdefaultview != VIEW_CALENDAR)
1571 &&(CC->room.QRdefaultview != VIEW_TASKS) ) {
1572 cprintf("%d Not a calendar room\n", ERROR+NOT_HERE);
1573 return; /* Not an iCalendar-centric room */
1576 if (!CtdlDoIHavePermissionToDeleteMessagesFromThisRoom()) {
1577 cprintf("%d Permission denied.\n", ERROR+HIGHER_ACCESS_REQUIRED);
1581 cprintf("%d Transmit data now\n", SEND_LISTING);
1582 calstream = CtdlReadMessageBody("000", config.c_maxmsglen, NULL, 0, 0);
1583 if (calstream == NULL) {
1587 cal = icalcomponent_new_from_string(calstream);
1590 /* We got our data stream -- now do something with it. */
1592 /* Delete the existing messages in the room, because we are replacing
1593 * the entire calendar with an entire new (or updated) calendar.
1594 * (Careful: this opens an S_ROOMS critical section!)
1596 CtdlDeleteMessages(CC->room.QRname, NULL, 0, "");
1598 /* If the top-level component is *not* a VCALENDAR, we can drop it right
1599 * in. This will almost never happen.
1601 if (icalcomponent_isa(cal) != ICAL_VCALENDAR_COMPONENT) {
1602 ical_write_to_cal(NULL, cal);
1605 * In the more likely event that we're looking at a VCALENDAR with the VEVENT
1606 * and other components encapsulated inside, we have to extract them.
1609 for (c = icalcomponent_get_first_component(cal, ICAL_ANY_COMPONENT);
1611 c = icalcomponent_get_next_component(cal, ICAL_ANY_COMPONENT)) {
1612 ical_write_to_cal(NULL, c);
1616 icalcomponent_free(cal);
1621 * All Citadel calendar commands from the client come through here.
1623 void cmd_ical(char *argbuf)
1631 extract_token(subcmd, argbuf, 0, '|', sizeof subcmd);
1633 /* Allow "test" and "freebusy" subcommands without logging in. */
1635 if (!strcasecmp(subcmd, "test")) {
1636 cprintf("%d This server supports calendaring\n", CIT_OK);
1640 if (!strcasecmp(subcmd, "freebusy")) {
1641 extract_token(who, argbuf, 1, '|', sizeof who);
1646 if (!strcasecmp(subcmd, "sgi")) {
1647 CIT_ICAL->server_generated_invitations =
1648 (extract_int(argbuf, 1) ? 1 : 0) ;
1650 CIT_OK, CIT_ICAL->server_generated_invitations);
1654 if (CtdlAccessCheck(ac_logged_in)) return;
1656 if (!strcasecmp(subcmd, "respond")) {
1657 msgnum = extract_long(argbuf, 1);
1658 extract_token(partnum, argbuf, 2, '|', sizeof partnum);
1659 extract_token(action, argbuf, 3, '|', sizeof action);
1660 ical_respond(msgnum, partnum, action);
1664 if (!strcasecmp(subcmd, "handle_rsvp")) {
1665 msgnum = extract_long(argbuf, 1);
1666 extract_token(partnum, argbuf, 2, '|', sizeof partnum);
1667 extract_token(action, argbuf, 3, '|', sizeof action);
1668 ical_handle_rsvp(msgnum, partnum, action);
1672 if (!strcasecmp(subcmd, "conflicts")) {
1673 msgnum = extract_long(argbuf, 1);
1674 extract_token(partnum, argbuf, 2, '|', sizeof partnum);
1675 ical_conflicts(msgnum, partnum);
1679 if (!strcasecmp(subcmd, "getics")) {
1684 if (!strcasecmp(subcmd, "putics")) {
1689 cprintf("%d Invalid subcommand\n", ERROR + CMD_NOT_SUPPORTED);
1695 * We don't know if the calendar room exists so we just create it at login
1697 void ical_create_room(void)
1702 /* Create the calendar room if it doesn't already exist */
1703 create_room(USERCALENDARROOM, 4, "", 0, 1, 0, VIEW_CALENDAR);
1705 /* Set expiration policy to manual; otherwise objects will be lost! */
1706 if (lgetroom(&qr, USERCALENDARROOM)) {
1707 CtdlLogPrintf(CTDL_CRIT, "Couldn't get the user calendar room!\n");
1710 qr.QRep.expire_mode = EXPIRE_MANUAL;
1711 qr.QRdefaultview = VIEW_CALENDAR; /* 3 = calendar view */
1714 /* Set the view to a calendar view */
1715 CtdlGetRelationship(&vbuf, &CC->user, &qr);
1716 vbuf.v_view = VIEW_CALENDAR;
1717 CtdlSetRelationship(&vbuf, &CC->user, &qr);
1719 /* Create the tasks list room if it doesn't already exist */
1720 create_room(USERTASKSROOM, 4, "", 0, 1, 0, VIEW_TASKS);
1722 /* Set expiration policy to manual; otherwise objects will be lost! */
1723 if (lgetroom(&qr, USERTASKSROOM)) {
1724 CtdlLogPrintf(CTDL_CRIT, "Couldn't get the user calendar room!\n");
1727 qr.QRep.expire_mode = EXPIRE_MANUAL;
1728 qr.QRdefaultview = VIEW_TASKS;
1731 /* Set the view to a task list view */
1732 CtdlGetRelationship(&vbuf, &CC->user, &qr);
1733 vbuf.v_view = VIEW_TASKS;
1734 CtdlSetRelationship(&vbuf, &CC->user, &qr);
1736 /* Create the notes room if it doesn't already exist */
1737 create_room(USERNOTESROOM, 4, "", 0, 1, 0, VIEW_NOTES);
1739 /* Set expiration policy to manual; otherwise objects will be lost! */
1740 if (lgetroom(&qr, USERNOTESROOM)) {
1741 CtdlLogPrintf(CTDL_CRIT, "Couldn't get the user calendar room!\n");
1744 qr.QRep.expire_mode = EXPIRE_MANUAL;
1745 qr.QRdefaultview = VIEW_NOTES;
1748 /* Set the view to a notes view */
1749 CtdlGetRelationship(&vbuf, &CC->user, &qr);
1750 vbuf.v_view = VIEW_NOTES;
1751 CtdlSetRelationship(&vbuf, &CC->user, &qr);
1758 * ical_send_out_invitations() is called by ical_saving_vevent() when it finds a VEVENT.
1760 * top_level_cal is the highest available level calendar object.
1761 * cal is the subcomponent containing the VEVENT.
1763 * Note: if you change the encapsulation code here, change it in WebCit's ical_encapsulate_subcomponent()
1765 void ical_send_out_invitations(icalcomponent *top_level_cal, icalcomponent *cal) {
1766 icalcomponent *the_request = NULL;
1767 char *serialized_request = NULL;
1768 icalcomponent *encaps = NULL;
1769 char *request_message_text = NULL;
1770 struct CtdlMessage *msg = NULL;
1771 struct recptypes *valid = NULL;
1772 char attendees_string[SIZ];
1773 int num_attendees = 0;
1774 char this_attendee[256];
1775 icalproperty *attendee = NULL;
1776 char summary_string[SIZ];
1777 icalproperty *summary = NULL;
1782 CtdlLogPrintf(CTDL_ERR, "ERROR: trying to reply to NULL event?\n");
1787 /* If this is a VCALENDAR component, look for a VEVENT subcomponent. */
1788 if (icalcomponent_isa(cal) == ICAL_VCALENDAR_COMPONENT) {
1789 ical_send_out_invitations(top_level_cal,
1790 icalcomponent_get_first_component(
1791 cal, ICAL_VEVENT_COMPONENT
1797 /* Clone the event */
1798 the_request = icalcomponent_new_clone(cal);
1799 if (the_request == NULL) {
1800 CtdlLogPrintf(CTDL_ERR, "ERROR: cannot clone calendar object\n");
1804 /* Extract the summary string -- we'll use it as the
1805 * message subject for the request
1807 strcpy(summary_string, "Meeting request");
1808 summary = icalcomponent_get_first_property(the_request, ICAL_SUMMARY_PROPERTY);
1809 if (summary != NULL) {
1810 if (icalproperty_get_summary(summary)) {
1811 strcpy(summary_string,
1812 icalproperty_get_summary(summary) );
1816 /* Determine who the recipients of this message are (the attendees) */
1817 strcpy(attendees_string, "");
1818 for (attendee = icalcomponent_get_first_property(the_request, ICAL_ATTENDEE_PROPERTY); attendee != NULL; attendee = icalcomponent_get_next_property(the_request, ICAL_ATTENDEE_PROPERTY)) {
1819 if (icalproperty_get_attendee(attendee)) {
1820 safestrncpy(this_attendee, icalproperty_get_attendee(attendee), sizeof this_attendee);
1821 if (!strncasecmp(this_attendee, "MAILTO:", 7)) {
1822 strcpy(this_attendee, &this_attendee[7]);
1824 if (!CtdlIsMe(this_attendee, sizeof this_attendee)) { /* don't send an invitation to myself! */
1825 snprintf(&attendees_string[strlen(attendees_string)],
1826 sizeof(attendees_string) - strlen(attendees_string),
1836 CtdlLogPrintf(CTDL_DEBUG, "<%d> attendees: <%s>\n", num_attendees, attendees_string);
1838 /* If there are no attendees, there are no invitations to send, so...
1839 * don't bother putting one together! Punch out, Maverick!
1841 if (num_attendees == 0) {
1842 icalcomponent_free(the_request);
1846 /* Encapsulate the VEVENT component into a complete VCALENDAR */
1847 encaps = icalcomponent_new_vcalendar();
1848 if (encaps == NULL) {
1849 CtdlLogPrintf(CTDL_DEBUG, "Error at %s:%d - could not allocate component!\n",
1850 __FILE__, __LINE__);
1851 icalcomponent_free(the_request);
1855 /* Set the Product ID */
1856 icalcomponent_add_property(encaps, icalproperty_new_prodid(PRODID));
1858 /* Set the Version Number */
1859 icalcomponent_add_property(encaps, icalproperty_new_version("2.0"));
1861 /* Set the method to REQUEST */
1862 icalcomponent_set_method(encaps, ICAL_METHOD_REQUEST);
1864 /* FIXME: attach time zones here */
1865 for (p = icalcomponent_get_first_property(the_request, ICAL_ANY_PROPERTY);
1867 p = icalcomponent_get_next_property(the_request, ICAL_ANY_PROPERTY))
1869 if ( (icalproperty_isa(p) == ICAL_COMPLETED_PROPERTY)
1870 || (icalproperty_isa(p) == ICAL_CREATED_PROPERTY)
1871 || (icalproperty_isa(p) == ICAL_DATEMAX_PROPERTY)
1872 || (icalproperty_isa(p) == ICAL_DATEMIN_PROPERTY)
1873 || (icalproperty_isa(p) == ICAL_DTEND_PROPERTY)
1874 || (icalproperty_isa(p) == ICAL_DTSTAMP_PROPERTY)
1875 || (icalproperty_isa(p) == ICAL_DTSTART_PROPERTY)
1876 || (icalproperty_isa(p) == ICAL_DUE_PROPERTY)
1877 || (icalproperty_isa(p) == ICAL_EXDATE_PROPERTY)
1878 || (icalproperty_isa(p) == ICAL_LASTMODIFIED_PROPERTY)
1879 || (icalproperty_isa(p) == ICAL_MAXDATE_PROPERTY)
1880 || (icalproperty_isa(p) == ICAL_MINDATE_PROPERTY)
1881 || (icalproperty_isa(p) == ICAL_RECURRENCEID_PROPERTY)
1883 CtdlLogPrintf(CTDL_DEBUG, "FIXME: found a property that requires a vtimezone\n");
1887 /* Here we go: put the VEVENT into the VCALENDAR. We now no longer
1888 * are responsible for "the_request"'s memory -- it will be freed
1889 * when we free "encaps".
1891 icalcomponent_add_component(encaps, the_request);
1894 serialized_request = icalcomponent_as_ical_string_r(encaps);
1895 icalcomponent_free(encaps); /* Don't need this anymore. */
1896 if (serialized_request == NULL) return;
1898 CtdlLogPrintf(CTDL_DEBUG, "SENDING INVITATIONS:\n%s\n", serialized_request);
1900 reqsize = strlen(serialized_request) + SIZ;
1901 request_message_text = malloc(reqsize);
1902 if (request_message_text != NULL) {
1903 snprintf(request_message_text, reqsize,
1904 "Content-type: text/calendar\r\n\r\n%s\r\n",
1908 msg = CtdlMakeMessage(&CC->user,
1909 "", /* No single recipient here */
1910 "", /* No single recipient here */
1911 CC->room.QRname, 0, FMT_RFC822,
1914 summary_string, /* Use summary for subject */
1916 request_message_text,
1920 valid = validate_recipients(attendees_string, NULL, 0);
1921 CtdlSubmitMsg(msg, valid, "", QP_EADDR);
1922 CtdlFreeMessage(msg);
1923 free_recipients(valid);
1926 free(serialized_request);
1931 * When a calendar object is being saved, determine whether it's a VEVENT
1932 * and the user saving it is the organizer. If so, send out invitations
1933 * to any listed attendees.
1935 * This function is recursive. The caller can simply supply the same object
1936 * as both arguments. When it recurses it will alter the second argument
1937 * while holding on to the top level object. This allows us to go back and
1938 * grab things like time zones which might be attached.
1941 void ical_saving_vevent(icalcomponent *top_level_cal, icalcomponent *cal) {
1943 icalproperty *organizer = NULL;
1944 char organizer_string[SIZ];
1946 CtdlLogPrintf(CTDL_DEBUG, "ical_saving_vevent() has been called!\n");
1948 /* Don't send out invitations unless the client wants us to. */
1949 if (CIT_ICAL->server_generated_invitations == 0) {
1953 /* Don't send out invitations if we've been asked not to. */
1954 if (CIT_ICAL->avoid_sending_invitations > 0) {
1958 strcpy(organizer_string, "");
1960 * The VEVENT subcomponent is the one we're interested in.
1961 * Send out invitations if, and only if, this user is the Organizer.
1963 if (icalcomponent_isa(cal) == ICAL_VEVENT_COMPONENT) {
1964 organizer = icalcomponent_get_first_property(cal, ICAL_ORGANIZER_PROPERTY);
1965 if (organizer != NULL) {
1966 if (icalproperty_get_organizer(organizer)) {
1967 strcpy(organizer_string,
1968 icalproperty_get_organizer(organizer));
1971 if (!strncasecmp(organizer_string, "MAILTO:", 7)) {
1972 strcpy(organizer_string, &organizer_string[7]);
1973 striplt(organizer_string);
1975 * If the user saving the event is listed as the
1976 * organizer, then send out invitations.
1978 if (CtdlIsMe(organizer_string, sizeof organizer_string)) {
1979 ical_send_out_invitations(top_level_cal, cal);
1984 /* If the component has subcomponents, recurse through them. */
1985 for (c = icalcomponent_get_first_component(cal, ICAL_ANY_COMPONENT);
1987 c = icalcomponent_get_next_component(cal, ICAL_ANY_COMPONENT)) {
1988 /* Recursively process subcomponent */
1989 ical_saving_vevent(top_level_cal, c);
1997 * Back end for ical_obj_beforesave()
1998 * This hunts for the UID of the calendar event (becomes Citadel msg EUID),
1999 * the summary of the event (becomes message subject),
2000 * and the start time (becomes message date/time).
2002 void ical_obj_beforesave_backend(char *name, char *filename, char *partnum,
2003 char *disp, void *content, char *cbtype, char *cbcharset, size_t length,
2004 char *encoding, char *cbid, void *cbuserdata)
2006 icalcomponent *cal, *nested_event, *nested_todo, *whole_cal;
2008 char new_uid[256] = "";
2009 char buf[1024] = "";
2010 struct CtdlMessage *msg = (struct CtdlMessage *) cbuserdata;
2014 /* We're only interested in calendar data. */
2015 if ( (strcasecmp(cbtype, "text/calendar"))
2016 && (strcasecmp(cbtype, "application/ics")) ) {
2020 /* Hunt for the UID and drop it in
2021 * the "user data" pointer for the MIME parser. When
2022 * ical_obj_beforesave() sees it there, it'll set the Exclusive msgid
2025 whole_cal = icalcomponent_new_from_string(content);
2028 if (icalcomponent_isa(cal) == ICAL_VCALENDAR_COMPONENT) {
2029 nested_event = icalcomponent_get_first_component(
2030 cal, ICAL_VEVENT_COMPONENT);
2031 if (nested_event != NULL) {
2035 nested_todo = icalcomponent_get_first_component(
2036 cal, ICAL_VTODO_COMPONENT);
2037 if (nested_todo != NULL) {
2045 /* Set the message EUID to the iCalendar UID */
2047 p = ical_ctdl_get_subprop(cal, ICAL_UID_PROPERTY);
2049 /* If there's no uid we must generate one */
2050 generate_uuid(new_uid);
2051 icalcomponent_add_property(cal, icalproperty_new_uid(new_uid));
2052 p = ical_ctdl_get_subprop(cal, ICAL_UID_PROPERTY);
2055 safestrncpy(buf, icalproperty_get_comment(p), sizeof buf);
2056 if (!IsEmptyStr(buf)) {
2057 if (msg->cm_fields['E'] != NULL) {
2058 free(msg->cm_fields['E']);
2060 msg->cm_fields['E'] = strdup(buf);
2061 CtdlLogPrintf(CTDL_DEBUG, "Saving calendar UID <%s>\n", buf);
2065 /* Set the message subject to the iCalendar summary */
2067 p = ical_ctdl_get_subprop(cal, ICAL_SUMMARY_PROPERTY);
2069 safestrncpy(buf, icalproperty_get_comment(p), sizeof buf);
2070 if (!IsEmptyStr(buf)) {
2071 if (msg->cm_fields['U'] != NULL) {
2072 free(msg->cm_fields['U']);
2074 msg->cm_fields['U'] = strdup(buf);
2078 /* Set the message date/time to the iCalendar start time */
2080 p = ical_ctdl_get_subprop(cal, ICAL_DTSTART_PROPERTY);
2083 idtstart = icaltime_as_timet(icalproperty_get_dtstart(p));
2085 if (msg->cm_fields['T'] != NULL) {
2086 free(msg->cm_fields['T']);
2088 msg->cm_fields['T'] = strdup("000000000000000000");
2089 sprintf(msg->cm_fields['T'], "%ld", idtstart);
2094 icalcomponent_free(cal);
2095 if (whole_cal != cal) {
2096 icalcomponent_free(whole_cal);
2105 * See if we need to prevent the object from being saved (we don't allow
2106 * MIME types other than text/calendar in "calendar" or "tasks" rooms).
2108 * If the message is being saved, we also set various message header fields
2109 * using data found in the iCalendar object.
2111 int ical_obj_beforesave(struct CtdlMessage *msg)
2113 /* First determine if this is a calendar or tasks room */
2114 if ( (CC->room.QRdefaultview != VIEW_CALENDAR)
2115 && (CC->room.QRdefaultview != VIEW_TASKS)
2117 return(0); /* Not an iCalendar-centric room */
2120 /* It must be an RFC822 message! */
2121 if (msg->cm_format_type != 4) {
2122 CtdlLogPrintf(CTDL_DEBUG, "Rejecting non-RFC822 message\n");
2123 return(1); /* You tried to save a non-RFC822 message! */
2126 if (msg->cm_fields['M'] == NULL) {
2127 return(1); /* You tried to save a null message! */
2130 /* Do all of our lovely back-end parsing */
2131 mime_parser(msg->cm_fields['M'],
2133 *ical_obj_beforesave_backend,
2144 * Things we need to do after saving a calendar event.
2146 void ical_obj_aftersave_backend(char *name, char *filename, char *partnum,
2147 char *disp, void *content, char *cbtype, char *cbcharset, size_t length,
2148 char *encoding, char *cbid, void *cbuserdata)
2152 /* We're only interested in calendar items here. */
2153 if ( (strcasecmp(cbtype, "text/calendar"))
2154 && (strcasecmp(cbtype, "application/ics")) ) {
2158 /* Hunt for the UID and drop it in
2159 * the "user data" pointer for the MIME parser. When
2160 * ical_obj_beforesave() sees it there, it'll set the Exclusive msgid
2163 if ( (!strcasecmp(cbtype, "text/calendar"))
2164 || (!strcasecmp(cbtype, "application/ics")) ) {
2165 cal = icalcomponent_new_from_string(content);
2167 ical_saving_vevent(cal, cal);
2168 icalcomponent_free(cal);
2175 * Things we need to do after saving a calendar event.
2176 * (This will start back end tasks such as automatic generation of invitations,
2177 * if such actions are appropriate.)
2179 int ical_obj_aftersave(struct CtdlMessage *msg)
2181 char roomname[ROOMNAMELEN];
2184 * If this isn't the Calendar> room, no further action is necessary.
2187 /* First determine if this is our room */
2188 MailboxName(roomname, sizeof roomname, &CC->user, USERCALENDARROOM);
2189 if (strcasecmp(roomname, CC->room.QRname)) {
2190 return(0); /* Not the Calendar room -- don't do anything. */
2193 /* It must be an RFC822 message! */
2194 if (msg->cm_format_type != 4) return(1);
2196 /* Reject null messages */
2197 if (msg->cm_fields['M'] == NULL) return(1);
2199 /* Now recurse through it looking for our icalendar data */
2200 mime_parser(msg->cm_fields['M'],
2202 *ical_obj_aftersave_backend,
2212 void ical_session_startup(void) {
2213 CIT_ICAL = malloc(sizeof(struct cit_ical));
2214 memset(CIT_ICAL, 0, sizeof(struct cit_ical));
2217 void ical_session_shutdown(void) {
2223 * Back end for ical_fixed_output()
2225 void ical_fixed_output_backend(icalcomponent *cal,
2232 p = icalcomponent_get_first_property(cal, ICAL_SUMMARY_PROPERTY);
2234 cprintf("%s\n", (const char *)icalproperty_get_comment(p));
2237 p = icalcomponent_get_first_property(cal, ICAL_LOCATION_PROPERTY);
2239 cprintf("%s\n", (const char *)icalproperty_get_comment(p));
2242 p = icalcomponent_get_first_property(cal, ICAL_DESCRIPTION_PROPERTY);
2244 cprintf("%s\n", (const char *)icalproperty_get_comment(p));
2247 /* If the component has attendees, iterate through them. */
2248 for (p = icalcomponent_get_first_property(cal, ICAL_ATTENDEE_PROPERTY); (p != NULL); p = icalcomponent_get_next_property(cal, ICAL_ATTENDEE_PROPERTY)) {
2249 safestrncpy(buf, icalproperty_get_attendee(p), sizeof buf);
2250 if (!strncasecmp(buf, "MAILTO:", 7)) {
2252 /* screen name or email address */
2253 strcpy(buf, &buf[7]);
2255 cprintf("%s ", buf);
2260 /* If the component has subcomponents, recurse through them. */
2261 for (c = icalcomponent_get_first_component(cal, ICAL_ANY_COMPONENT);
2263 c = icalcomponent_get_next_component(cal, ICAL_ANY_COMPONENT)) {
2264 /* Recursively process subcomponent */
2265 ical_fixed_output_backend(c, recursion_level+1);
2272 * Function to output iCalendar data as plain text. Nobody uses MSG0
2273 * anymore, so really this is just so we expose the vCard data to the full
2276 void ical_fixed_output(char *ptr, int len) {
2280 stringy_cal = malloc(len + 1);
2281 safestrncpy(stringy_cal, ptr, len + 1);
2282 cal = icalcomponent_new_from_string(stringy_cal);
2289 ical_fixed_output_backend(cal, 0);
2291 /* Free the memory we obtained from libical's constructor */
2292 icalcomponent_free(cal);
2297 void serv_calendar_destroy(void)
2299 icaltimezone_free_builtin_timezones();
2303 * Register this module with the Citadel server.
2305 CTDL_MODULE_INIT(calendar)
2310 /* Tell libical to return errors instead of aborting if it gets bad data */
2311 icalerror_errors_are_fatal = 0;
2313 /* Use our own application prefix in tzid's generated from system tzdata */
2314 icaltimezone_set_tzid_prefix("/citadel.org/");
2316 /* Initialize our hook functions */
2317 CtdlRegisterMessageHook(ical_obj_beforesave, EVT_BEFORESAVE);
2318 CtdlRegisterMessageHook(ical_obj_aftersave, EVT_AFTERSAVE);
2319 CtdlRegisterSessionHook(ical_create_room, EVT_LOGIN);
2320 CtdlRegisterProtoHook(cmd_ical, "ICAL", "Citadel iCal commands");
2321 CtdlRegisterSessionHook(ical_session_startup, EVT_START);
2322 CtdlRegisterSessionHook(ical_session_shutdown, EVT_STOP);
2323 CtdlRegisterFixedOutputHook("text/calendar", ical_fixed_output);
2324 CtdlRegisterFixedOutputHook("application/ics", ical_fixed_output);
2325 CtdlRegisterCleanupHook(serv_calendar_destroy);
2328 /* return our Subversion id for the Log */
2339 /* FIXME I just saved this down here so I can steal code from it */
2343 icalcomponent *ical_encapsulate_subcomponent(icalcomponent *subcomp) {
2344 icalcomponent *encaps;
2346 struct icaltimetype t;
2347 const icaltimezone *attached_zones[5] = { NULL, NULL, NULL, NULL, NULL };
2349 const icaltimezone *z;
2350 int num_zones_attached = 0;
2351 int zone_already_attached;
2353 if (subcomp == NULL) {
2354 lprintf(3, "ERROR: ical_encapsulate_subcomponent() called with NULL argument\n");
2359 * If we're already looking at a full VCALENDAR component, this is probably an error.
2361 if (icalcomponent_isa(subcomp) == ICAL_VCALENDAR_COMPONENT) {
2362 lprintf(3, "ERROR: component sent to ical_encapsulate_subcomponent() already top level\n");
2367 for (p = icalcomponent_get_first_property(subcomp, ICAL_ANY_PROPERTY);
2369 p = icalcomponent_get_next_property(subcomp, ICAL_ANY_PROPERTY))
2371 if ( (icalproperty_isa(p) == ICAL_COMPLETED_PROPERTY)
2372 || (icalproperty_isa(p) == ICAL_CREATED_PROPERTY)
2373 || (icalproperty_isa(p) == ICAL_DATEMAX_PROPERTY)
2374 || (icalproperty_isa(p) == ICAL_DATEMIN_PROPERTY)
2375 || (icalproperty_isa(p) == ICAL_DTEND_PROPERTY)
2376 || (icalproperty_isa(p) == ICAL_DTSTAMP_PROPERTY)
2377 || (icalproperty_isa(p) == ICAL_DTSTART_PROPERTY)
2378 || (icalproperty_isa(p) == ICAL_DUE_PROPERTY)
2379 || (icalproperty_isa(p) == ICAL_EXDATE_PROPERTY)
2380 || (icalproperty_isa(p) == ICAL_LASTMODIFIED_PROPERTY)
2381 || (icalproperty_isa(p) == ICAL_MAXDATE_PROPERTY)
2382 || (icalproperty_isa(p) == ICAL_MINDATE_PROPERTY)
2383 || (icalproperty_isa(p) == ICAL_RECURRENCEID_PROPERTY)
2385 t = icalproperty_get_dtstart(p); // it's safe to use dtstart for all of them
2386 if ((icaltime_is_valid_time(t)) && (z=icaltime_get_timezone(t), z)) {
2388 zone_already_attached = 0;
2389 for (i=0; i<5; ++i) {
2390 if (z == attached_zones[i]) {
2391 ++zone_already_attached;
2392 lprintf(9, "zone already attached!!\n");
2395 if ((!zone_already_attached) && (num_zones_attached < 5)) {
2396 lprintf(9, "attaching zone %d!\n", num_zones_attached);
2397 attached_zones[num_zones_attached++] = z;
2400 icalproperty_set_parameter(p,
2401 icalparameter_new_tzid(icaltimezone_get_tzid((icaltimezone *)z))
2407 /* Encapsulate the VEVENT component into a complete VCALENDAR */
2408 encaps = icalcomponent_new(ICAL_VCALENDAR_COMPONENT);
2409 if (encaps == NULL) {
2410 lprintf(3, "ERROR: ical_encapsulate_subcomponent() could not allocate component\n");
2414 /* Set the Product ID */
2415 icalcomponent_add_property(encaps, icalproperty_new_prodid(PRODID));
2417 /* Set the Version Number */
2418 icalcomponent_add_property(encaps, icalproperty_new_version("2.0"));
2420 /* Attach any timezones we need */
2421 if (num_zones_attached > 0) for (i=0; i<num_zones_attached; ++i) {
2423 zc = icalcomponent_new_clone(icaltimezone_get_component((icaltimezone *)attached_zones[i]));
2424 icalcomponent_add_component(encaps, zc);
2427 /* Encapsulate the subcomponent inside */
2428 icalcomponent_add_component(encaps, subcomp);
2430 /* Return the object we just created. */