* *** HUGE CHANGES *** *** WARNING: NOT FULLY FUNCTIONAL ***
[citadel.git] / webcit / event.c
index 1c366ef3c6fb55017946c0b965a347838c2df191..595f103aba7536dd120af2b635075e80b39b0c24 100644 (file)
@@ -28,8 +28,7 @@
 #include "webserver.h"
 
 
-#ifdef HAVE_ICAL_H
-
+#ifdef WEBCIT_WITH_CALENDAR_SERVICE
 
 /*
  * Display an event by itself (for editing)
 void display_edit_individual_event(icalcomponent *supplied_vevent, long msgnum) {
        icalcomponent *vevent;
        icalproperty *p;
+       icalvalue *v;
        struct icaltimetype t_start, t_end;
        time_t now;
+       struct tm tm_now;
        int created_new_vevent = 0;
        icalproperty *organizer = NULL;
        char organizer_string[SIZ];
        icalproperty *attendee = NULL;
        char attendee_string[SIZ];
        char buf[SIZ];
-       int i;
        int organizer_is_me = 0;
+       int i;
+       int sequence = 0;
 
-       now = time(NULL);
+       now = time(NULL) % 60;          /* mod 60 to force :00 seconds */
        strcpy(organizer_string, "");
        strcpy(attendee_string, "");
 
        if (supplied_vevent != NULL) {
                vevent = supplied_vevent;
+               /* 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
+                * NULL returned by icalcomponent_get_first_component() will
+                * tell the next iteration of this function to create a
+                * new one.
+                */
+               if (icalcomponent_isa(vevent) == ICAL_VCALENDAR_COMPONENT) {
+                       display_edit_individual_event(
+                               icalcomponent_get_first_component(
+                                       vevent, ICAL_VEVENT_COMPONENT
+                               ), msgnum
+                       );
+                       return;
+               }
        }
        else {
                vevent = icalcomponent_new(ICAL_VEVENT_COMPONENT);
                created_new_vevent = 1;
        }
 
-       output_headers(3);
-       wprintf("<TABLE WIDTH=100%% BORDER=0 BGCOLOR=007700><TR><TD>"
-               "<IMG ALIGN=CENTER SRC=\"/static/vcalendar.gif\">"
-               "<FONT SIZE=+1 COLOR=\"FFFFFF\""
-               "<B>Edit event</B>"
-               "</FONT></TD></TR></TABLE><BR>\n"
-       );
+       /* Learn the sequence */
+       p = icalcomponent_get_first_property(vevent, ICAL_SEQUENCE_PROPERTY);
+       if (p != NULL) {
+               sequence = icalproperty_get_sequence(p);
+       }
+
+       /* Begin output */
+       output_headers(1, 1, 0, 0, 0, 0, 0);
+       do_template("beginbox_nt");
+       wprintf("<h3>&nbsp;<IMG ALIGN=CENTER SRC=\"/static/vcalendar.gif\">"
+               "&nbsp;Add or edit an event</h3>\n");
 
        /************************************************************
         * Uncomment this to see the UID in calendar events for debugging
@@ -75,6 +96,8 @@ void display_edit_individual_event(icalcomponent *supplied_vevent, long msgnum)
        if (p != NULL) {
                escputs((char *)icalproperty_get_comment(p));
        }
+       wprintf("<br />\n");
+       wprintf("SEQUENCE == %d<br />\n", sequence);
        *************************************************************/
 
        wprintf("<FORM NAME=\"EventForm\" METHOD=\"POST\" ACTION=\"/save_event\">\n");
@@ -122,50 +145,59 @@ void display_edit_individual_event(icalcomponent *supplied_vevent, long msgnum)
                }
        }
        else {
-               memset(&t_start, 0, sizeof t_start);
-               t_start.year = atoi(bstr("year"));
-               t_start.month = atoi(bstr("month"));
-               t_start.day = atoi(bstr("day"));
+               localtime_r(&now, &tm_now);
+               tm_now.tm_year = atoi(bstr("year")) - 1900;
+               tm_now.tm_mon = atoi(bstr("month")) - 1;
+               tm_now.tm_mday = atoi(bstr("day"));
                if (strlen(bstr("hour")) > 0) {
-                       t_start.hour = atoi(bstr("hour"));
-                       t_start.minute = atoi(bstr("minute"));
+                       tm_now.tm_hour = atoi(bstr("hour"));
+                       tm_now.tm_min = atoi(bstr("minute"));
+                       tm_now.tm_sec = 0;
                }
                else {
-                       t_start.hour = 9;
-                       t_start.minute = 0;
+                       tm_now.tm_hour = 9;
+                       tm_now.tm_min = 0;
+                       tm_now.tm_sec = 0;
                }
-               /* t_start = icaltime_from_timet(now, 0); */
+
+               t_start = icaltime_from_timet_with_zone(
+                       mktime(&tm_now),
+                       ((!strcasecmp(bstr("alldayevent"), "yes")) ? 1 : 0),
+                       icaltimezone_get_utc_timezone()
+               );
+               t_start.is_utc = 1;
+
        }
        display_icaltimetype_as_webform(&t_start, "dtstart");
 
        wprintf("<INPUT TYPE=\"checkbox\" NAME=\"alldayevent\" "
-               "VALUE=\"yes\" onClick=\"
-
-                       if (this.checked) {
-                               this.form.dtstart_hour.value='0';
-                               this.form.dtstart_hour.disabled = true;
-                               this.form.dtstart_minute.value='0';
-                               this.form.dtstart_minute.disabled = true;
-                               this.form.dtend_hour.value='0';
-                               this.form.dtend_hour.disabled = true;
-                               this.form.dtend_minute.value='0';
-                               this.form.dtend_minute.disabled = true;
-                               this.form.dtend_month.disabled = true;
-                               this.form.dtend_day.disabled = true;
-                               this.form.dtend_year.disabled = true;
-                       }
-                       else {
-                               this.form.dtstart_hour.disabled = false;
-                               this.form.dtstart_minute.disabled = false;
-                               this.form.dtend_hour.disabled = false;
-                               this.form.dtend_minute.disabled = false;
-                               this.form.dtend_month.disabled = false;
-                               this.form.dtend_day.disabled = false;
-                               this.form.dtend_year.disabled = false;
-                       }
-
-
-               \" %s >All day event",
+               "VALUE=\"yes\" onClick=\""
+""
+"                      if (this.checked) { "
+"                              this.form.dtstart_hour.value='0'; "
+"                              this.form.dtstart_hour.disabled = true; "
+"                              this.form.dtstart_minute.value='0'; "
+"                              this.form.dtstart_minute.disabled = true; "
+"                              this.form.dtend_hour.value='0'; "
+"                              this.form.dtend_hour.disabled = true; "
+"                              this.form.dtend_minute.value='0'; "
+"                              this.form.dtend_minute.disabled = true; "
+"                              this.form.dtend_month.disabled = true; "
+"                              this.form.dtend_day.disabled = true; "
+"                              this.form.dtend_year.disabled = true; "
+"                      } "
+"                      else { "
+"                              this.form.dtstart_hour.disabled = false; "
+"                              this.form.dtstart_minute.disabled = false; "
+"                              this.form.dtend_hour.disabled = false; "
+"                              this.form.dtend_minute.disabled = false; "
+"                              this.form.dtend_month.disabled = false; "
+"                              this.form.dtend_day.disabled = false; "
+"                              this.form.dtend_year.disabled = false; "
+"                      } "
+" "
+" "
+"              \" %s >All day event",
                (t_start.is_date ? "CHECKED" : "" )
        );
 
@@ -192,6 +224,7 @@ void display_edit_individual_event(icalcomponent *supplied_vevent, long msgnum)
                         */
                        t_end = t_start;
                        t_end.hour += 1;
+                       t_end.second = 0;
                        t_end = icaltime_normalize(t_end);
                        /* t_end = icaltime_from_timet(now, 0); */
                }
@@ -201,7 +234,7 @@ void display_edit_individual_event(icalcomponent *supplied_vevent, long msgnum)
 
        wprintf("<TR><TD><B>Notes</B></TD><TD>\n"
                "<TEXTAREA NAME=\"description\" wrap=soft "
-               "ROWS=10 COLS=80 WIDTH=80>\n"
+               "ROWS=5 COLS=80 WIDTH=80>\n"
        );
        p = icalcomponent_get_first_property(vevent, ICAL_DESCRIPTION_PROPERTY);
        if (p != NULL) {
@@ -209,8 +242,19 @@ void display_edit_individual_event(icalcomponent *supplied_vevent, long msgnum)
        }
        wprintf("</TEXTAREA></TD></TR>");
 
-       /* Determine who is the organizer of this event.  This is useless
-        * for now, but we'll need to determine "me" or "not me" soon.
+       /* For a new event, the user creating the event should be the
+        * organizer.  Set this field accordingly.
+        */
+       if (icalcomponent_get_first_property(vevent, ICAL_ORGANIZER_PROPERTY)
+          == NULL) {
+               sprintf(organizer_string, "MAILTO:%s", WC->cs_inet_email);
+               icalcomponent_add_property(vevent,
+                       icalproperty_new_organizer(organizer_string)
+               );
+       }
+
+       /* Determine who is the organizer of this event.
+        * We need to determine "me" or "not me."
         */
        organizer = icalcomponent_get_first_property(vevent,
                                                ICAL_ORGANIZER_PROPERTY);
@@ -219,34 +263,90 @@ void display_edit_individual_event(icalcomponent *supplied_vevent, long msgnum)
                if (!strncasecmp(organizer_string, "MAILTO:", 7)) {
                        strcpy(organizer_string, &organizer_string[7]);
                        striplt(organizer_string);
+                       lprintf(9, "ISME %s\n", organizer_string);
                        serv_printf("ISME %s", organizer_string);
                        serv_gets(buf);
+                       lprintf(9, "%s\n", buf);
                        if (buf[0] == '2') {
                                organizer_is_me = 1;
                        }
                }
        }
-       wprintf("<TR><TD>Organizer<BR>(FIXME)</TD><TD>");
+
+       wprintf("<TR><TD><B>Organizer</B></TD><TD>");
        escputs(organizer_string);
        if (organizer_is_me) {
-               wprintf("(you. FIXME)\n");
+               wprintf(" <FONT SIZE=-1><I>"
+                       "(you are the organizer)</I></FONT>\n");
+       }
+
+       /*
+        * Transmit the organizer as a hidden field.   We don't want the user
+        * to be able to change it, but we do want it fed back to the server,
+        * especially if this is a new event and there is no organizer already
+        * in the calendar object.
+        */
+       wprintf("<INPUT TYPE=\"hidden\" NAME=\"organizer\" VALUE=\"");
+       escputs(organizer_string);
+       wprintf("\">");
+
+       wprintf("</TD></TR>\n");
+
+       /* Transparency */
+       wprintf("<TR><TD><B>Show time as:</B></TD><TD>");
+
+       p = icalcomponent_get_first_property(vevent, ICAL_TRANSP_PROPERTY);
+       if (p == NULL) {
+               /* No transparency found.  Default to opaque (busy). */
+               p = icalproperty_new_transp(ICAL_TRANSP_OPAQUE);
+               if (p != NULL) {
+                       icalcomponent_add_property(vevent, p);
+               }
+       }
+       if (p != NULL) {
+               v = icalproperty_get_value(p);
        }
+       else {
+               v = NULL;
+       }
+
+       wprintf("<INPUT TYPE=\"radio\" NAME=\"transp\" VALUE=\"transparent\"");
+       if (v != NULL) if (icalvalue_get_transp(v) == ICAL_TRANSP_TRANSPARENT)
+               wprintf(" CHECKED");
+       wprintf(">Free&nbsp;&nbsp;");
+
+       wprintf("<INPUT TYPE=\"radio\" NAME=\"transp\" VALUE=\"opaque\"");
+       if (v != NULL) if (icalvalue_get_transp(v) == ICAL_TRANSP_OPAQUE)
+               wprintf(" CHECKED");
+       wprintf(">Busy");
+
        wprintf("</TD></TR>\n");
 
-       /* Attendees (do more with this later) */
-       wprintf("<TR><TD><B>Attendes</B><BR>"
-               "<FONT SIZE=-2>(Separate multiple attendees with commas)"
+       /* Attendees */
+       wprintf("<TR><TD><B>Attendees</B><br />"
+               "<FONT SIZE=-2>(One per line)"
                "</FONT></TD><TD>"
-               "<TEXTAREA NAME=\"attendees\" wrap=soft "
-               "ROWS=3 COLS=80 WIDTH=80>\n");
+               "<TEXTAREA %s NAME=\"attendees\" wrap=soft "
+               "ROWS=3 COLS=80 WIDTH=80>\n",
+               (organizer_is_me ? "" : "DISABLED ")
+       );
        i = 0;
-       for (attendee = icalcomponent_get_first_property(vevent, ICAL_ATTENDEE_PROPERTY); attendee != NULL; attendee = icalcomponent_get_next_property(vevent, ICAL_ATTENDEE_PROPERTY)) {
+       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)) {
+
+                       /* screen name or email address */
                        strcpy(attendee_string, &attendee_string[7]);
                        striplt(attendee_string);
-                       if (i++) wprintf("");
+                       if (i++) wprintf("\n");
                        escputs(attendee_string);
+                       wprintf(" ");
+
+                       /* participant status */
+                       partstat_as_string(buf, attendee);
+                       escputs(buf);
                }
        }
        wprintf("</TEXTAREA></TD></TR>\n");
@@ -257,41 +357,44 @@ void display_edit_individual_event(icalcomponent *supplied_vevent, long msgnum)
                "&nbsp;&nbsp;"
                "<INPUT TYPE=\"submit\" NAME=\"sc\" VALUE=\"Delete\">\n"
                "&nbsp;&nbsp;"
+               "<INPUT TYPE=\"submit\" NAME=\"sc\" "
+                               "VALUE=\"Check attendee availability\">\n"
+               "&nbsp;&nbsp;"
                "<INPUT TYPE=\"submit\" NAME=\"sc\" VALUE=\"Cancel\">\n"
                "</CENTER>\n"
        );
 
        wprintf("</FORM>\n");
        
-       wprintf("<SCRIPT language=\"javascript\">
-               <!--
-
-                       if (document.EventForm.alldayevent.checked) {
-                               document.EventForm.dtstart_hour.value='0';
-                               document.EventForm.dtstart_hour.disabled = true;
-                               document.EventForm.dtstart_minute.value='0';
-                               document.EventForm.dtstart_minute.disabled = true;
-                               document.EventForm.dtend_hour.value='0';
-                               document.EventForm.dtend_hour.disabled = true;
-                               document.EventForm.dtend_minute.value='0';
-                               document.EventForm.dtend_minute.disabled = true;
-                               document.EventForm.dtend_month.disabled = true;
-                               document.EventForm.dtend_day.disabled = true;
-                               document.EventForm.dtend_year.disabled = true;
-                       }
-                       else {
-                               document.EventForm.dtstart_hour.disabled = false;
-                               document.EventForm.dtstart_minute.disabled = false;
-                               document.EventForm.dtend_hour.disabled = false;
-                               document.EventForm.dtend_minute.disabled = false;
-                               document.EventForm.dtend_month.disabled = false;
-                               document.EventForm.dtend_day.disabled = false;
-                               document.EventForm.dtend_year.disabled = false;
-                       }
-               //-->
-               </SCRIPT>
-       ");
+       wprintf("<script language=\"javascript\">"
+               "<!--"
+                       "if (document.EventForm.alldayevent.checked) {"
+                               "document.EventForm.dtstart_hour.value='0';"
+                               "document.EventForm.dtstart_hour.disabled = true;"
+                               "document.EventForm.dtstart_minute.value='0';"
+                               "document.EventForm.dtstart_minute.disabled = true;"
+                               "document.EventForm.dtend_hour.value='0';"
+                               "document.EventForm.dtend_hour.disabled = true;"
+                               "document.EventForm.dtend_minute.value='0';"
+                               "document.EventForm.dtend_minute.disabled = true;"
+                               "document.EventForm.dtend_month.disabled = true;"
+                               "document.EventForm.dtend_day.disabled = true;"
+                               "document.EventForm.dtend_year.disabled = true;"
+                       "}"
+                       "else {"
+                               "document.EventForm.dtstart_hour.disabled = false;"
+                               "document.EventForm.dtstart_minute.disabled = false;"
+                               "document.EventForm.dtend_hour.disabled = false;"
+                               "document.EventForm.dtend_minute.disabled = false;"
+                               "document.EventForm.dtend_month.disabled = false;"
+                               "document.EventForm.dtend_day.disabled = false;"
+                               "document.EventForm.dtend_year.disabled = false;"
+                       "}"
+               "//-->"
+               "</script>\n"
+       );
 
+       do_template("endbox");
        wDumpContent(1);
 
        if (created_new_vevent) {
@@ -301,38 +404,64 @@ void display_edit_individual_event(icalcomponent *supplied_vevent, long msgnum)
 
 /*
  * Save an edited event
+ * 
  */
 void save_individual_event(icalcomponent *supplied_vevent, long msgnum) {
        char buf[SIZ];
-       int delete_existing = 0;
        icalproperty *prop;
-       icalcomponent *vevent;
+       icalcomponent *vevent, *encaps;
        int created_new_vevent = 0;
        int all_day_event = 0;
        struct icaltimetype event_start;
+       icalproperty *attendee = NULL;
+       char attendee_string[SIZ];
+       int i;
+       int foundit;
+       char form_attendees[SIZ];
+       char organizer_string[SIZ];
+       int sequence = 0;
+       enum icalproperty_transp formtransp = ICAL_TRANSP_NONE;
 
        if (supplied_vevent != NULL) {
                vevent = supplied_vevent;
+               /* 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
+                * NULL returned by icalcomponent_get_first_component() will
+                * tell the next iteration of this function to create a
+                * new one.
+                */
+               if (icalcomponent_isa(vevent) == ICAL_VCALENDAR_COMPONENT) {
+                       save_individual_event(
+                               icalcomponent_get_first_component(
+                                       vevent, ICAL_VEVENT_COMPONENT
+                               ), msgnum
+                       );
+                       return;
+               }
        }
        else {
                vevent = icalcomponent_new(ICAL_VEVENT_COMPONENT);
                created_new_vevent = 1;
        }
 
-       if (!strcasecmp(bstr("sc"), "Save")) {
+       if ( (!strcasecmp(bstr("sc"), "Save"))
+          || (!strcasecmp(bstr("sc"), "Check attendee availability")) ) {
 
                /* Replace values in the component with ones from the form */
 
                while (prop = icalcomponent_get_first_property(vevent,
                      ICAL_SUMMARY_PROPERTY), prop != NULL) {
                        icalcomponent_remove_property(vevent, prop);
+                       icalproperty_free(prop);
                }
                icalcomponent_add_property(vevent,
                        icalproperty_new_summary(bstr("summary")));
-               
+
                while (prop = icalcomponent_get_first_property(vevent,
                      ICAL_LOCATION_PROPERTY), prop != NULL) {
                        icalcomponent_remove_property(vevent, prop);
+                       icalproperty_free(prop);
                }
                icalcomponent_add_property(vevent,
                        icalproperty_new_location(bstr("location")));
@@ -340,6 +469,7 @@ void save_individual_event(icalcomponent *supplied_vevent, long msgnum) {
                while (prop = icalcomponent_get_first_property(vevent,
                      ICAL_DESCRIPTION_PROPERTY), prop != NULL) {
                        icalcomponent_remove_property(vevent, prop);
+                       icalproperty_free(prop);
                }
                icalcomponent_add_property(vevent,
                        icalproperty_new_description(bstr("description")));
@@ -347,11 +477,11 @@ void save_individual_event(icalcomponent *supplied_vevent, long msgnum) {
                while (prop = icalcomponent_get_first_property(vevent,
                      ICAL_DTSTART_PROPERTY), prop != NULL) {
                        icalcomponent_remove_property(vevent, prop);
+                       icalproperty_free(prop);
                }
 
                if (!strcmp(bstr("alldayevent"), "yes")) {
                        all_day_event = 1;
-                       lprintf(9, "*** all day event ***\n");
                }
                else {
                        all_day_event = 0;
@@ -383,15 +513,15 @@ void save_individual_event(icalcomponent *supplied_vevent, long msgnum) {
                if (prop) icalcomponent_add_property(vevent, prop);
                else icalproperty_free(prop);
 
-
-
                while (prop = icalcomponent_get_first_property(vevent,
                      ICAL_DTEND_PROPERTY), prop != NULL) {
                        icalcomponent_remove_property(vevent, prop);
+                       icalproperty_free(prop);
                }
                while (prop = icalcomponent_get_first_property(vevent,
                      ICAL_DURATION_PROPERTY), prop != NULL) {
                        icalcomponent_remove_property(vevent, prop);
+                       icalproperty_free(prop);
                }
 
                if (all_day_event == 0) {
@@ -402,35 +532,168 @@ void save_individual_event(icalcomponent *supplied_vevent, long msgnum) {
                        );
                }
 
+               /* See if transparency is indicated */
+               if (strlen(bstr("transp")) > 0) {
+                       if (!strcasecmp(bstr("transp"), "opaque")) {
+                               formtransp = ICAL_TRANSP_OPAQUE;
+                       }
+                       else if (!strcasecmp(bstr("transp"), "transparent")) {
+                               formtransp = ICAL_TRANSP_TRANSPARENT;
+                       }
+
+                       while (prop = icalcomponent_get_first_property(vevent, ICAL_TRANSP_PROPERTY),
+                             (prop != NULL)) {
+                               icalcomponent_remove_property(vevent, prop);
+                               icalproperty_free(prop);
+                       }
+
+                       lprintf(9, "adding new property...\n");
+                       icalcomponent_add_property(vevent, icalproperty_new_transp(formtransp));
+                       lprintf(9, "...added it.\n");
+               }
+
                /* Give this event a UID if it doesn't have one. */
+               lprintf(9, "Give this event a UID if it doesn't have one.\n");
                if (icalcomponent_get_first_property(vevent,
                   ICAL_UID_PROPERTY) == NULL) {
-                       generate_new_uid(buf);
+                       generate_uuid(buf);
                        icalcomponent_add_property(vevent,
                                icalproperty_new_uid(buf)
                        );
                }
 
-               /* Serialize it and save it to the message base */
-               serv_puts("ENT0 1|||4");
-               serv_gets(buf);
-               if (buf[0] == '4') {
-                       serv_puts("Content-type: text/calendar");
-                       serv_puts("");
-                       serv_puts(icalcomponent_as_ical_string(vevent));
-                       serv_puts("000");
-                       delete_existing = 1;
+               /* Increment the sequence ID */
+               lprintf(9, "Increment the sequence ID\n");
+               while (prop = icalcomponent_get_first_property(vevent,
+                     ICAL_SEQUENCE_PROPERTY), (prop != NULL) ) {
+                       i = icalproperty_get_sequence(prop);
+                       lprintf(9, "Sequence was %d\n", i);
+                       if (i > sequence) sequence = i;
+                       icalcomponent_remove_property(vevent, prop);
+                       icalproperty_free(prop);
                }
+               ++sequence;
+               lprintf(9, "New sequence is %d.  Adding...\n", sequence);
+               icalcomponent_add_property(vevent,
+                       icalproperty_new_sequence(sequence)
+               );
+               
+               /* Set the organizer, only if one does not already exist *and*
+                * the form is supplying one
+                */
+               lprintf(9, "Setting the organizer...\n");
+               strcpy(buf, bstr("organizer"));
+               if ( (icalcomponent_get_first_property(vevent,
+                  ICAL_ORGANIZER_PROPERTY) == NULL) 
+                  && (strlen(buf) > 0) ) {
+
+                       /* set new organizer */
+                       sprintf(organizer_string, "MAILTO:%s", buf);
+                       icalcomponent_add_property(vevent,
+                               icalproperty_new_organizer(organizer_string)
+                       );
+
+               }
+
+               /*
+                * Add any new attendees listed in the web form
+                */
+               lprintf(9, "Add any new attendees\n");
+
+               /* First, strip out the parenthesized partstats.  */
+               strcpy(form_attendees, bstr("attendees"));
+               stripout(form_attendees, '(', ')');
+
+               /* Now iterate! */
+               for (i=0; i<num_tokens(form_attendees, '\n'); ++i) {
+                       extract_token(buf, form_attendees, i, '\n');
+                       striplt(buf);
+                       if (strlen(buf) > 0) {
+                               lprintf(9, "Attendee: <%s>\n", buf);
+                               sprintf(attendee_string, "MAILTO:%s", buf);
+                               foundit = 0;
+
+                               for (attendee = icalcomponent_get_first_property(vevent, ICAL_ATTENDEE_PROPERTY); attendee != NULL; attendee = icalcomponent_get_next_property(vevent, ICAL_ATTENDEE_PROPERTY)) {
+                                       if (!strcasecmp(attendee_string,
+                                          icalproperty_get_attendee(attendee)))
+                                               ++foundit;
+                               }
+
+
+                               if (foundit == 0) {
+                                       icalcomponent_add_property(vevent,
+                                               icalproperty_new_attendee(attendee_string)
+                                       );
+                               }
+                       }
+               }
+
+               /*
+                * Remove any attendees *not* listed in the web form
+                */
+STARTOVER:     lprintf(9, "Remove unlisted attendees\n");
+               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)) {
+                               strcpy(attendee_string, &attendee_string[7]);
+                               striplt(attendee_string);
+                               foundit = 0;
+                               for (i=0; i<num_tokens(form_attendees, '\n'); ++i) {
+                                       extract_token(buf, form_attendees, i, '\n');
+                                       striplt(buf);
+                                       if (!strcasecmp(buf, attendee_string)) ++foundit;
+                               }
+                               if (foundit == 0) {
+                                       icalcomponent_remove_property(vevent, attendee);
+                                       icalproperty_free(attendee);
+                                       goto STARTOVER;
+                               }
+                       }
+               }
+
+               /*
+                * Encapsulate event into full VCALENDAR component.  Clone it first,
+                * for two reasons: one, it's easier to just free the whole thing
+                * when we're done instead of unbundling, but more importantly, we
+                * can't encapsulate something that may already be encapsulated
+                * somewhere else.
+                */
+               lprintf(9, "Encapsulating into full VCALENDAR component\n");
+               encaps = ical_encapsulate_subcomponent(icalcomponent_new_clone(vevent));
+
+               /* If the user clicked 'Save' then save it to the server. */
+               lprintf(9, "Serializing it for saving\n");
+               if ( (encaps != NULL) && (!strcasecmp(bstr("sc"), "Save")) ) {
+                       serv_puts("ENT0 1|||4");
+                       serv_gets(buf);
+                       if (buf[0] == '4') {
+                               serv_puts("Content-type: text/calendar");
+                               serv_puts("");
+                               serv_puts(icalcomponent_as_ical_string(encaps));
+                               serv_puts("000");
+                       }
+                       icalcomponent_free(encaps);
+               }
+
+               /* Or, check attendee availability if the user asked for that. */
+               if ( (encaps != NULL) && (!strcasecmp(bstr("sc"), "Check attendee availability")) ) {
+
+                       /* Call this function, which does the real work */
+                       check_attendee_availability(encaps);
+
+                       /* This displays the form again, with our annotations */
+                       display_edit_individual_event(encaps, msgnum);
+
+                       icalcomponent_free(encaps);
+               }
+
        }
 
        /*
-        * If the user clicked 'Delete' then delete it, period.
+        * If the user clicked 'Delete' then delete it.
         */
-       if (!strcasecmp(bstr("sc"), "Delete")) {
-               delete_existing = 1;
-       }
-
-       if ( (delete_existing) && (msgnum > 0L) ) {
+       lprintf(9, "Checking to see if we have to delete an old event\n");
+       if ( (!strcasecmp(bstr("sc"), "Delete")) && (msgnum > 0L) ) {
                serv_printf("DELE %ld", atol(bstr("msgnum")));
                serv_gets(buf);
        }
@@ -439,9 +702,11 @@ void save_individual_event(icalcomponent *supplied_vevent, long msgnum) {
                icalcomponent_free(vevent);
        }
 
-       /* Go back to the event list */
-       readloop("readfwd");
+       /* If this was a save or deelete, go back to the calendar view. */
+       if (strcasecmp(bstr("sc"), "Check attendee availability")) {
+               readloop("readfwd");
+       }
 }
 
 
-#endif /* HAVE_ICAL_H */
+#endif /* WEBCIT_WITH_CALENDAR_SERVICE */