#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
-#include "serv_calendar.h"
#include "citadel.h"
#include "server.h"
#include "citserver.h"
#include "tools.h"
#include "msgbase.h"
#include "mime_parser.h"
+#include "serv_calendar.h"
-#ifdef HAVE_ICAL_H
+#ifdef CITADEL_WITH_CALENDAR_SERVICE
#include <ical.h>
+#include "ical_dezonify.h"
struct ical_respond_data {
char desired_partnum[SIZ];
icalcomponent *cal;
};
+/* Session-local data for calendaring. */
+long SYM_CIT_ICAL;
/*
* Write a calendar object into the specified user's calendar room.
}
if (strcasecmp(partnum, ird->desired_partnum)) return;
ird->cal = icalcomponent_new_from_string(content);
+ if (ird->cal != NULL) {
+ ical_dezonify(ird->cal);
+ }
}
}
}
-void ical_do_FIXME(long msgnum, void *data) {
- lprintf(9, "Found message <%ld> with correct UID\n", msgnum);
+
+/*
+ * ical_update_my_calendar_with_reply() refers to this callback function; when we
+ * locate the message containing the calendar event we're replying to, this function
+ * gets called. It basically just sticks the message number in a supplied buffer.
+ */
+void ical_hunt_for_event_to_update(long msgnum, void *data) {
+ long *msgnumptr;
+
+ msgnumptr = (long *) data;
+ *msgnumptr = msgnum;
+}
+
+
+struct original_event_container {
+ icalcomponent *c;
+};
+
+/*
+ * Callback function for mime parser that hunts for calendar content types
+ * and turns them into calendar objects (called by ical_update_my_calendar_with_reply()
+ * to fetch the object being updated)
+ */
+void ical_locate_original_event(char *name, char *filename, char *partnum, char *disp,
+ void *content, char *cbtype, size_t length, char *encoding,
+ void *cbuserdata) {
+
+ struct original_event_container *oec = NULL;
+
+ if (strcasecmp(cbtype, "text/calendar")) {
+ return;
+ }
+ oec = (struct original_event_container *) cbuserdata;
+ if (oec->c != NULL) {
+ icalcomponent_free(oec->c);
+ }
+ oec->c = icalcomponent_new_from_string(content);
}
+
+/*
+ * Merge updated attendee information from a REPLY into an existing event.
+ */
+void ical_merge_attendee_reply(icalcomponent *event, icalcomponent *reply) {
+ icalcomponent *c;
+ icalproperty *e_attendee, *r_attendee;
+
+ /* First things first. If we're not looking at a VEVENT component,
+ * recurse through subcomponents until we find one.
+ */
+ if (icalcomponent_isa(event) != ICAL_VEVENT_COMPONENT) {
+ for (c = icalcomponent_get_first_component(event, ICAL_VEVENT_COMPONENT);
+ c != NULL;
+ c = icalcomponent_get_next_component(event, ICAL_VEVENT_COMPONENT) ) {
+ ical_merge_attendee_reply(c, reply);
+ }
+ return;
+ }
+
+ /* Now do the same thing with the reply.
+ */
+ if (icalcomponent_isa(reply) != ICAL_VEVENT_COMPONENT) {
+ for (c = icalcomponent_get_first_component(reply, ICAL_VEVENT_COMPONENT);
+ c != NULL;
+ c = icalcomponent_get_next_component(reply, ICAL_VEVENT_COMPONENT) ) {
+ ical_merge_attendee_reply(event, c);
+ }
+ return;
+ }
+
+ /* Clone the reply, because we're going to rip its guts out. */
+ reply = icalcomponent_new_clone(reply);
+
+ /* At this point we're looking at the correct subcomponents.
+ * Iterate through the attendees looking for a match.
+ */
+STARTOVER:
+ for (e_attendee = icalcomponent_get_first_property(event, ICAL_ATTENDEE_PROPERTY);
+ e_attendee != NULL;
+ e_attendee = icalcomponent_get_next_property(event, ICAL_ATTENDEE_PROPERTY)) {
+
+ for (r_attendee = icalcomponent_get_first_property(reply, ICAL_ATTENDEE_PROPERTY);
+ r_attendee != NULL;
+ r_attendee = icalcomponent_get_next_property(reply, ICAL_ATTENDEE_PROPERTY)) {
+
+ /* Check to see if these two attendees match...
+ */
+ if (!strcasecmp(
+ icalproperty_get_attendee(e_attendee),
+ icalproperty_get_attendee(r_attendee)
+ )) {
+ /* ...and if they do, remove the attendee from the event
+ * and replace it with the attendee from the reply. (The
+ * reply's copy will have the same address, but an updated
+ * status.)
+ */
+ TRACE;
+ icalcomponent_remove_property(event, e_attendee);
+ TRACE;
+ icalproperty_free(e_attendee);
+ TRACE;
+ icalcomponent_remove_property(reply, r_attendee);
+ TRACE;
+ icalcomponent_add_property(event, r_attendee);
+ TRACE;
+
+ /* Since we diddled both sets of attendees, we have to start
+ * the iteration over again. This will not create an infinite
+ * loop because we removed the attendee from the reply. (That's
+ * why we cloned the reply, and that's what we mean by "ripping
+ * its guts out.")
+ */
+ goto STARTOVER;
+ }
+
+ }
+ }
+
+ /* Free the *clone* of the reply. */
+ icalcomponent_free(reply);
+}
+
+
+
+
/*
* Handle an incoming RSVP (object with method==ICAL_METHOD_REPLY) for a
* calendar event. The object has already been deserialized for us; all
int ical_update_my_calendar_with_reply(icalcomponent *cal) {
char uid[SIZ];
char hold_rm[ROOMNAMELEN];
- int replaced_an_event = 0;
+ long msgnum_being_replaced = 0;
struct CtdlMessage *template = NULL;
+ struct CtdlMessage *msg;
+ struct original_event_container oec;
+ icalcomponent *original_event;
+ char *serialized_event = NULL;
+ char roomname[ROOMNAMELEN];
+ char *message_text = NULL;
/* Figure out just what event it is we're dealing with */
strcpy(uid, "--==<< InVaLiD uId >>==--");
memset(template, 0, sizeof(struct CtdlMessage));
template->cm_fields['E'] = strdoop(uid);
CtdlForEachMessage(MSGS_ALL, 0, "text/calendar",
- template, ical_do_FIXME, NULL);
+ template, ical_hunt_for_event_to_update, &msgnum_being_replaced);
CtdlFreeMessage(template);
getroom(&CC->quickroom, hold_rm); /* return to saved room */
- if (replaced_an_event) {
- return(0);
+ lprintf(9, "msgnum_being_replaced == %ld\n", msgnum_being_replaced);
+ if (msgnum_being_replaced == 0) {
+ return(1); /* no calendar event found */
}
- else {
- return(1);
+
+ /* Now we know the ID of the message containing the event being updated.
+ * We don't actually have to delete it; that'll get taken care of by the
+ * server when we save another event with the same UID. This just gives
+ * us the ability to load the event into memory so we can diddle the
+ * attendees.
+ */
+ msg = CtdlFetchMessage(msgnum_being_replaced);
+ if (msg == NULL) {
+ return(2); /* internal error */
+ }
+ oec.c = NULL;
+ mime_parser(msg->cm_fields['M'],
+ NULL,
+ *ical_locate_original_event, /* callback function */
+ NULL, NULL,
+ &oec, /* user data */
+ 0
+ );
+ CtdlFreeMessage(msg);
+
+ original_event = oec.c;
+ if (original_event == NULL) {
+ lprintf(3, "ERROR: Original_component is NULL.\n");
+ return(2);
}
+
+ /* Merge the attendee's updated status into the event */
+ ical_merge_attendee_reply(original_event, cal);
+
+ /* Serialize it */
+ serialized_event = strdoop(icalcomponent_as_ical_string(original_event));
+ icalcomponent_free(original_event); /* Don't need this anymore. */
+ if (serialized_event == NULL) return(2);
+
+ MailboxName(roomname, sizeof roomname, &CC->usersupp, USERCALENDARROOM);
+
+ message_text = mallok(strlen(serialized_event) + SIZ);
+ if (message_text != NULL) {
+ sprintf(message_text,
+ "Content-type: text/calendar\r\n\r\n%s\r\n",
+ serialized_event
+ );
+
+ msg = CtdlMakeMessage(&CC->usersupp,
+ "", /* No recipient */
+ roomname,
+ 0, FMT_RFC822,
+ "",
+ "", /* no subject */
+ message_text);
+
+ if (msg != NULL) {
+ CIT_ICAL->avoid_sending_invitations = 1;
+ CtdlSubmitMsg(msg, NULL, roomname);
+ CtdlFreeMessage(msg);
+ CIT_ICAL->avoid_sending_invitations = 0;
+ }
+ }
+ phree(serialized_event);
+ return(0);
}
/* Now that we've processed this message, we don't need it
* anymore. So delete it. FIXME uncomment this when ready!
- CtdlDeleteMessages(CC->quickroom.QRname, msgnum, "");
*/
+ CtdlDeleteMessages(CC->quickroom.QRname, msgnum, "");
/* Free the memory we allocated and return a response. */
icalcomponent_free(ird.cal);
/*
* ical_send_out_invitations() is called by ical_saving_vevent() when it
- * finds a VEVENT. FIXME ... finish implementing.
+ * finds a VEVENT.
*/
void ical_send_out_invitations(icalcomponent *cal) {
icalcomponent *the_request = NULL;
struct CtdlMessage *msg = NULL;
struct recptypes *valid = NULL;
char attendees_string[SIZ];
+ int num_attendees = 0;
char this_attendee[SIZ];
icalproperty *attendee = NULL;
char summary_string[SIZ];
"%s, ",
this_attendee
);
+ ++num_attendees;
}
}
}
- lprintf(9, "attendees_string: <%s>\n", attendees_string);
+ lprintf(9, "<%d> attendees: <%s>\n", num_attendees, attendees_string);
+
+ /* If there are no attendees, there are no invitations to send, so...
+ * don't bother putting one together! Punch out, Maverick!
+ */
+ if (num_attendees == 0) {
+ icalcomponent_free(the_request);
+ return;
+ }
/* Encapsulate the VEVENT component into a complete VCALENDAR */
encaps = icalcomponent_new(ICAL_VCALENDAR_COMPONENT);
/* Set the method to REQUEST */
icalcomponent_set_method(encaps, ICAL_METHOD_REQUEST);
- /* FIXME: here we need to insert a VTIMEZONE object. */
+ /* Now make sure all of the DTSTART and DTEND properties are UTC. */
+ ical_dezonify(the_request);
/* Here we go: put the VEVENT into the VCALENDAR. We now no longer
* are responsible for "the_request"'s memory -- it will be freed
icalproperty *organizer = NULL;
char organizer_string[SIZ];
+ /* Don't send out invitations if we've been asked not to. */
+ lprintf(9, "CIT_ICAL->avoid_sending_invitations = %d\n",
+ CIT_ICAL->avoid_sending_invitations);
+ if (CIT_ICAL->avoid_sending_invitations > 0) {
+ return;
+ }
+
strcpy(organizer_string, "");
/*
* The VEVENT subcomponent is the one we're interested in.
/*
* Back end for ical_obj_beforesave()
- * This hunts for the UID of the calendar event.
+ * This hunts for the UID of the calendar event (becomes Citadel msg EUID),
+ * the summary of the event (becomes message subject),
+ * and the start time (becomes message date/time).
*/
void ical_ctdl_set_extended_msgid(char *name, char *filename, char *partnum,
char *disp, void *content, char *cbtype, size_t length,
{
icalcomponent *cal;
icalproperty *p;
+ struct icalmessagemod *imm;
+
+ imm = (struct icalmessagemod *)cbuserdata;
/* If this is a text/calendar object, hunt for the UID and drop it in
* the "user data" pointer for the MIME parser. When
if (cal != NULL) {
p = ical_ctdl_get_subprop(cal, ICAL_UID_PROPERTY);
if (p != NULL) {
- strcpy((char *)cbuserdata,
- icalproperty_get_comment(p)
- );
+ strcpy(imm->uid, icalproperty_get_comment(p));
+ }
+ p = ical_ctdl_get_subprop(cal, ICAL_SUMMARY_PROPERTY);
+ if (p != NULL) {
+ strcpy(imm->subject,
+ icalproperty_get_comment(p));
+ }
+ p = ical_ctdl_get_subprop(cal, ICAL_DTSTART_PROPERTY);
+ if (p != NULL) {
+ imm->dtstart = icaltime_as_timet(icalproperty_get_dtstart(p));
}
icalcomponent_free(cal);
}
* ID to the UID of the object. This causes our replication checker to
* automatically delete any existing instances of the same object. (Isn't
* that cool?)
+ *
+ * We also set the message's Subject to the event summary, and the Date/time to
+ * the event start time.
*/
int ical_obj_beforesave(struct CtdlMessage *msg)
{
char roomname[ROOMNAMELEN];
char *p;
int a;
- char eidbuf[SIZ];
+ struct icalmessagemod imm;
/*
* Only messages with content-type text/calendar
while (--a > 0) {
if (!strncasecmp(p, "Content-Type: ", 14)) { /* Found it */
if (!strncasecmp(p + 14, "text/calendar", 13)) {
- strcpy(eidbuf, "");
+ memset(&imm, 0, sizeof(struct icalmessagemod));
mime_parser(msg->cm_fields['M'],
NULL,
*ical_ctdl_set_extended_msgid,
NULL, NULL,
- (void *)eidbuf,
+ (void *)&imm,
0
);
- if (strlen(eidbuf) > 0) {
+ if (strlen(imm.uid) > 0) {
if (msg->cm_fields['E'] != NULL) {
phree(msg->cm_fields['E']);
}
- msg->cm_fields['E'] = strdoop(eidbuf);
+ msg->cm_fields['E'] = strdoop(imm.uid);
+ }
+ if (strlen(imm.subject) > 0) {
+ if (msg->cm_fields['U'] != NULL) {
+ phree(msg->cm_fields['U']);
+ }
+ msg->cm_fields['U'] = strdoop(imm.subject);
+ }
+ if (imm.dtstart > 0) {
+ if (msg->cm_fields['T'] != NULL) {
+ phree(msg->cm_fields['T']);
+ }
+ msg->cm_fields['T'] = strdoop("000000000000000000");
+ sprintf(msg->cm_fields['T'], "%ld", imm.dtstart);
}
return 0;
}
}
-#endif /* HAVE_ICAL_H */
+void ical_session_startup(void) {
+ SYM_CIT_ICAL = CtdlGetDynamicSymbol();
+ CtdlAllocUserData(SYM_CIT_ICAL, sizeof(struct cit_ical));
+ memset(CIT_ICAL, 0, sizeof(struct cit_ical));
+
+}
+
+
+#endif /* CITADEL_WITH_CALENDAR_SERVICE */
/*
* Register this module with the Citadel server.
*/
char *Dynamic_Module_Init(void)
{
-#ifdef HAVE_ICAL_H
+#ifdef CITADEL_WITH_CALENDAR_SERVICE
CtdlRegisterMessageHook(ical_obj_beforesave, EVT_BEFORESAVE);
CtdlRegisterMessageHook(ical_obj_aftersave, EVT_AFTERSAVE);
CtdlRegisterSessionHook(ical_create_room, EVT_LOGIN);
CtdlRegisterProtoHook(cmd_ical, "ICAL", "Citadel iCal commands");
+ CtdlRegisterSessionHook(ical_session_startup, EVT_START);
#endif
return "$Id$";
}
projects / citadel.git / blobdiff