X-Git-Url: https://code.citadel.org/?a=blobdiff_plain;f=webcit%2Favailability.c;h=17edb3393f7068c7420e148224eb1928a1548f04;hb=HEAD;hp=ceb806e9dd00ca2afbea6475953138e77a98b983;hpb=78fef9db3948d4c38ed7392c33bc30a85baac8ff;p=citadel.git diff --git a/webcit/availability.c b/webcit/availability.c index ceb806e9d..a57e3f713 100644 --- a/webcit/availability.c +++ b/webcit/availability.c @@ -1,47 +1,141 @@ /* - * $Id$ + * Copyright (c) 1996-2012 by the citadel.org team * - * Check attendee availability for scheduling a meeting. + * This program is open source software. You can redistribute it and/or + * modify it under the terms of the GNU General Public License, version 3. * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include + #include "webcit.h" -#include "webserver.h" +#include "calendar.h" + +/* + * Utility function to fetch a VFREEBUSY type of thing for any specified user. + */ +icalcomponent *get_freebusy_for_user(char *who) { + long nLines; + char buf[SIZ]; + StrBuf *serialized_fb = NewStrBuf(); + icalcomponent *fb = NULL; + + serv_printf("ICAL freebusy|%s", who); + serv_getln(buf, sizeof buf); + if (buf[0] == '1') { + read_server_text(serialized_fb, &nLines); + } + + if (serialized_fb == NULL) { + return NULL; + } + + fb = icalcomponent_new_from_string(ChrPtr(serialized_fb)); + FreeStrBuf(&serialized_fb); + if (fb == NULL) { + return NULL; + } + + return(fb); +} -#ifdef WEBCIT_WITH_CALENDAR_SERVICE /* - * Display an event by itself (for editing) + * Back end function for check_attendee_availability() + * This one checks an individual attendee against a supplied + * event start and end time. All these fields have already been + * broken out. + * + * attendee_string name of the attendee + * event_start start time of the event to check + * event_end end time of the event to check + * + * The result is placed in 'annotation'. + */ +void check_individual_attendee(char *attendee_string, + struct icaltimetype event_start, + struct icaltimetype event_end, + char *annotation) { + + icalcomponent *fbc = NULL; + icalcomponent *fb = NULL; + icalproperty *thisfb = NULL; + struct icalperiodtype period; + + /* + * Set to 'unknown' right from the beginning. Unless we learn + * something else, that's what we'll go with. + */ + strcpy(annotation, _("availability unknown")); + + fbc = get_freebusy_for_user(attendee_string); + if (fbc == NULL) { + return; + } + + /* + * Make sure we're looking at a VFREEBUSY by itself. What we're probably + * looking at initially is a VFREEBUSY encapsulated in a VCALENDAR. + */ + if (icalcomponent_isa(fbc) == ICAL_VCALENDAR_COMPONENT) { + fb = icalcomponent_get_first_component(fbc, ICAL_VFREEBUSY_COMPONENT); + } + else if (icalcomponent_isa(fbc) == ICAL_VFREEBUSY_COMPONENT) { + fb = fbc; + } + + /* Iterate through all FREEBUSY's looking for conflicts. */ + if (fb != NULL) { + + strcpy(annotation, _("free")); + + for (thisfb = icalcomponent_get_first_property(fb, ICAL_FREEBUSY_PROPERTY); + thisfb != NULL; + thisfb = icalcomponent_get_next_property(fb, ICAL_FREEBUSY_PROPERTY) ) { + + /** Do the check */ + period = icalproperty_get_freebusy(thisfb); + if (ical_ctdl_is_overlap(period.start, period.end, + event_start, event_end)) { + strcpy(annotation, _("BUSY")); + } + + } + } + + icalcomponent_free(fbc); +} + + + + +/* + * Check the availability of all attendees for an event (when possible) + * and annotate accordingly. + * + * vevent the event which should be compared with attendees calendar */ void check_attendee_availability(icalcomponent *vevent) { icalproperty *attendee = NULL; + icalproperty *dtstart_p = NULL; + icalproperty *dtend_p = NULL; + struct icaltimetype dtstart_t; + struct icaltimetype dtend_t; char attendee_string[SIZ]; + char annotated_attendee_string[SIZ]; + char annotation[SIZ]; + const char *ch; if (vevent == NULL) { return; } - /* If we're looking at a fully encapsulated VCALENDAR + /* + * 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 @@ -57,30 +151,41 @@ void check_attendee_availability(icalcomponent *vevent) { return; } + ical_dezonify(vevent); /**< Convert everything to UTC */ /* - * Iterate through attendees. FIXME do something useful. + * Learn the start and end times. + */ + dtstart_p = icalcomponent_get_first_property(vevent, ICAL_DTSTART_PROPERTY); + if (dtstart_p != NULL) dtstart_t = icalproperty_get_dtstart(dtstart_p); + + dtend_p = icalcomponent_get_first_property(vevent, ICAL_DTEND_PROPERTY); + if (dtend_p != NULL) dtend_t = icalproperty_get_dtend(dtend_p); + + /* + * Iterate through attendees. */ for (attendee = icalcomponent_get_first_property(vevent, ICAL_ATTENDEE_PROPERTY); attendee != NULL; attendee = icalcomponent_get_next_property(vevent, ICAL_ATTENDEE_PROPERTY)) { + ch = icalproperty_get_attendee(attendee); + if ((ch != NULL) && !strncasecmp(ch, "MAILTO:", 7)) { - strcpy(attendee_string, icalproperty_get_attendee(attendee)); - if (!strncasecmp(attendee_string, "MAILTO:", 7)) { + /** screen name or email address */ + safestrncpy(attendee_string, ch + 7, sizeof(attendee_string)); + string_trim(attendee_string); - /* screen name or email address */ - strcpy(attendee_string, &attendee_string[7]); - striplt(attendee_string); + check_individual_attendee(attendee_string, + dtstart_t, dtend_t, + annotation); - /* FIXME do something with attendee_string */ - lprintf(9, "FIXME with <%s>\n", attendee_string); + /** Replace the attendee name with an annotated one. */ + snprintf(annotated_attendee_string, sizeof annotated_attendee_string, + "MAILTO:%s (%s)", attendee_string, annotation); + icalproperty_set_attendee(attendee, annotated_attendee_string); - /* participant status - partstat_as_string(buf, attendee); */ } } } - -#endif /* WEBCIT_WITH_CALENDAR_SERVICE */