icalspanlist *icalspanlist_from_vfreebusy(icalcomponent *comp) { icalcomponent *inner; icalproperty *prop; icalspanlist *sl; icalerror_check_arg_rz((comp != NULL), "comp"); inner = icalcomponent_get_inner(comp); if (!inner) return NULL; if ((sl = (icalspanlist *) malloc(sizeof(icalspanlist))) == 0) { icalerror_set_errno(ICAL_NEWFAILED_ERROR); return 0; } sl->spans = pvl_newlist(); /* cycle through each FREEBUSY property, adding to the spanlist */ for (prop = icalcomponent_get_first_property(inner, ICAL_FREEBUSY_PROPERTY); prop != NULL; prop = icalcomponent_get_next_property(inner, ICAL_FREEBUSY_PROPERTY)) { icaltime_span *s = (icaltime_span *) malloc(sizeof(icaltime_span)); icalparameter *param; struct icalperiodtype period; icalparameter_fbtype fbtype; if (s == 0) { icalerror_set_errno(ICAL_NEWFAILED_ERROR); icalspanlist_free(sl); return 0; } param = icalproperty_get_first_parameter(prop, ICAL_FBTYPE_PARAMETER); fbtype = (param) ? icalparameter_get_fbtype(param) : ICAL_FBTYPE_BUSY; switch (fbtype) { case ICAL_FBTYPE_FREE: case ICAL_FBTYPE_NONE: case ICAL_FBTYPE_X: s->is_busy = 1; break; default: s->is_busy = 0; } period = icalproperty_get_freebusy(prop); s->start = icaltime_as_timet_with_zone(period.start, icaltimezone_get_utc_timezone()); s->end = icaltime_as_timet_with_zone(period.end, icaltimezone_get_utc_timezone()); ; pvl_insert_ordered(sl->spans, compare_span, (void *)s); } /** @todo calculate start/end limits.. fill in holes? **/ return sl; }
int main(int argc, char *argv[]) { icalcomponent *c, *next_c = NULL; int i = 0; int dont_remove; icalfileset_options options = { O_RDONLY, 0644, 0, NULL }; icalset *f = icalset_new(ICAL_FILE_SET, TEST_DATADIR "/process-incoming.ics", &options); icalset *trash = icalset_new_file("trash.ics"); icalset *cal = icalset_new(ICAL_FILE_SET, TEST_DATADIR "/process-calendar.ics", &options); icalset *out = icalset_new_file("outgoing.ics"); const char *this_user = "******"; _unused(argc); _unused(argv); assert(f != 0); assert(cal != 0); assert(trash != 0); assert(out != 0); /* Foreach incoming message */ for (c = icalset_get_first_component(f); c != 0; c = next_c) { icalproperty_xlicclass class; icalcomponent *match; icalcomponent *inner; icalcomponent *reply = 0; assert(c != 0); inner = icalcomponent_get_first_real_component(c); i++; reply = 0; dont_remove = 0; if (inner == 0) { printf("Bad component, no inner\n %s\n", icalcomponent_as_ical_string(c)); continue; } /* Find a booked component that is matched to the incoming message, based on the incoming component's UID, SEQUENCE and RECURRENCE-ID */ match = icalset_fetch_match(cal, c); class = icalclassify(c, match, this_user); /* Print out the notes associated with the incoming component and the matched component in the */ { const char *inc_note = 0; const char *match_note = 0; icalproperty *p; for (p = icalcomponent_get_first_property(c, ICAL_X_PROPERTY); p != 0; p = icalcomponent_get_next_property(c, ICAL_X_PROPERTY)) { if (strcmp(icalproperty_get_x_name(p), "X-LIC-NOTE") == 0) { inc_note = icalproperty_get_x(p); } } if (match != 0) { for (p = icalcomponent_get_first_property(match, ICAL_X_PROPERTY); p != 0; p = icalcomponent_get_next_property(match, ICAL_X_PROPERTY)) { if (strcmp(icalproperty_get_x_name(p), "X-LIC-NOTE") == 0) { match_note = icalproperty_get_x(p); } } } if (inc_note != 0) { printf("Incoming: %s\n", inc_note); } if (match_note != 0) { printf("Match : %s\n", match_note); } } /* Main processing structure */ switch (class) { case ICAL_XLICCLASS_NONE:{ char temp[1024]; /* Huh? Return an error to sender */ icalrestriction_check(c); icalcomponent_convert_errors(c); snprintf(temp, 1024, "I can't understand the component you sent.\n" "Here is the component you sent, possibly with error messages:\n" "%s", icalcomponent_as_ical_string(c)); reply = icalmessage_new_error_reply(c, this_user, temp, "", ICAL_UNKNOWN_STATUS); break; } case ICAL_XLICCLASS_PUBLISHNEW:{ /* Don't accept published events from anyone but self. If self, fall through to ICAL_XLICCLASS_REQUESTNEW */ } case ICAL_XLICCLASS_REQUESTNEW:{ /* Book the new component if it does not overlap anything. If the time is busy and the start time is an even modulo 4, delegate to [email protected]. If the time is busy and is 1 modulo 4, counterpropose for the first available free time. Otherwise, deline the meeting */ icalcomponent *overlaps = icalclassify_find_overlaps(cal, c); if (overlaps == 0) { /* No overlaps, book the meeting */ /* icalset_add_component(cal,icalcomponent_new_clone(c));*/ /* Return a reply */ reply = icalmessage_new_accept_reply( c, this_user, "I can make it to this meeting"); (void)icalset_add_component(out, reply); } else { /* There was a conflict, so delegate, counterpropose or decline it */ struct icaltimetype dtstart = icalcomponent_get_dtstart(c); if (dtstart.hour % 4 == 0) { /* Delegate the meeting */ reply = icalmessage_new_delegate_reply( c, this_user, "*****@*****.**", "Unfortunately, I have another commitment that conflicts " "with this meeting. I am delegating my attendance to Bob."); (void)icalset_add_component(out, reply); } else if (dtstart.hour % 4 == 1) { /* Counter propose to next available time */ icalcomponent *newc; struct icalperiodtype next_time; icalspanlist *spanl = icalspanlist_new(cal, dtstart, icaltime_null_time()); next_time = icalspanlist_next_free_time(spanl, icalcomponent_get_dtstart(c)); newc = icalcomponent_new_clone(c); icalcomponent_set_dtstart(newc, next_time.start); /* Hack, the duration of the counterproposed meeting may be longer than the free time available */ icalcomponent_set_duration(newc, icalcomponent_get_duration(c)); reply = icalmessage_new_counterpropose_reply( c, newc, this_user, "Unfortunately, I have another commitment that conflicts with " "this meeting. I am proposing a time that works better for me."); (void)icalset_add_component(out, reply); icalspanlist_free(spanl); icalcomponent_free(newc); } else { /* Decline the meeting */ reply = icalmessage_new_decline_reply( c, this_user, "I can't make it to this meeting"); (void)icalset_add_component(out, reply); } } icalcomponent_free(overlaps); break; } case ICAL_XLICCLASS_PUBLISHFREEBUSY:{ /* Store the busy time information in a file named after the sender */ break; } case ICAL_XLICCLASS_PUBLISHUPDATE:{ /* Only accept publish updates from self. If self, fall through to ICAL_XLICCLASS_REQUESTUPDATE */ } case ICAL_XLICCLASS_REQUESTUPDATE:{ /* always accept the changes */ break; } case ICAL_XLICCLASS_REQUESTRESCHEDULE:{ /* Use same rules as REQUEST_NEW */ (void)icalclassify_find_overlaps(cal, c); break; } case ICAL_XLICCLASS_REQUESTDELEGATE:{ break; } case ICAL_XLICCLASS_REQUESTNEWORGANIZER:{ break; } case ICAL_XLICCLASS_REQUESTFORWARD:{ break; } case ICAL_XLICCLASS_REQUESTSTATUS:{ break; } case ICAL_XLICCLASS_REQUESTFREEBUSY:{ break; } case ICAL_XLICCLASS_REPLYACCEPT:{ /* Change the PARTSTAT of the sender */ break; } case ICAL_XLICCLASS_REPLYDECLINE:{ /* Change the PARTSTAT of the sender */ break; } case ICAL_XLICCLASS_REPLYCRASHERACCEPT:{ /* Add the crasher to the ATTENDEE list with the appropriate PARTSTAT */ break; } case ICAL_XLICCLASS_REPLYCRASHERDECLINE:{ /* Add the crasher to the ATTENDEE list with the appropriate PARTSTAT */ break; } case ICAL_XLICCLASS_ADDINSTANCE:{ break; } case ICAL_XLICCLASS_CANCELEVENT:{ /* Remove the component */ break; } case ICAL_XLICCLASS_CANCELINSTANCE:{ break; } case ICAL_XLICCLASS_CANCELALL:{ /* Remove the component */ break; } case ICAL_XLICCLASS_REFRESH:{ /* Resend the latest copy of the request */ break; } case ICAL_XLICCLASS_COUNTER:{ break; } case ICAL_XLICCLASS_DECLINECOUNTER:{ break; } case ICAL_XLICCLASS_MALFORMED:{ /* Send back an error */ break; } case ICAL_XLICCLASS_OBSOLETE:{ printf(" ** Got an obsolete component:\n%s", icalcomponent_as_ical_string(c)); /* Send back an error */ break; } case ICAL_XLICCLASS_MISSEQUENCED:{ printf(" ** Got a missequenced component:\n%s", icalcomponent_as_ical_string(c)); /* Send back an error */ break; } case ICAL_XLICCLASS_UNKNOWN:{ printf(" ** Don't know what to do with this component:\n%s", icalcomponent_as_ical_string(c)); /* Send back an error */ break; } case ICAL_XLICCLASS_X: case ICAL_XLICCLASS_REPLYDELEGATE: default:{ } } #if 0 if (reply != 0) { /* Don't send the reply if the RSVP parameter indicates not to */ icalcomponent *reply_inner; icalproperty *attendee; icalparameter *rsvp; reply_inner = icalcomponent_get_first_real_component(reply); attendee = icalcomponent_get_first_property(reply_inner, ICAL_ATTENDEE_PROPERTY); rsvp = icalproperty_get_first_parameter(attendee, ICAL_RSVP_PARAMETER); if (rsvp == 0 || icalparameter_get_rsvp(rsvp) == 1) { icalrestriction_check(reply); send_message(reply, this_user); } icalcomponent_free(reply); } #endif if (reply != 0) { printf("%s\n", icalcomponent_as_ical_string(reply)); } next_c = icalset_get_next_component(f); if (dont_remove == 0) { /*icalset_remove_component(f,c); icalset_add_component(trash,c); */ } } #if 0 for (c = icalset_get_first_component(out); c != 0; c = icalset_get_next_component(out)) { printf("%s", icalcomponent_as_ical_string(c)); } #endif icalset_free(f); icalset_free(trash); icalset_free(cal); icalset_free(out); return 0; }
icalspanlist *icalspanlist_new(icalset *set, struct icaltimetype start, struct icaltimetype end) { struct icaltime_span range; pvl_elem itr; icalcomponent *c, *inner; icalcomponent_kind kind, inner_kind; icalspanlist *sl; struct icaltime_span *freetime; if ((sl = (struct icalspanlist_impl *)malloc(sizeof(struct icalspanlist_impl))) == 0) { icalerror_set_errno(ICAL_NEWFAILED_ERROR); return 0; } sl->spans = pvl_newlist(); sl->start = start; sl->end = end; range.start = icaltime_as_timet(start); range.end = icaltime_as_timet(end); /* Get a list of spans of busy time from the events in the set and order the spans based on the start time */ for (c = icalset_get_first_component(set); c != 0; c = icalset_get_next_component(set)) { kind = icalcomponent_isa(c); inner = icalcomponent_get_inner(c); if (!inner) continue; inner_kind = icalcomponent_isa(inner); if (kind != ICAL_VEVENT_COMPONENT && inner_kind != ICAL_VEVENT_COMPONENT) continue; icalerror_clear_errno(); icalcomponent_foreach_recurrence(c, start, end, icalspanlist_new_callback, (void *)sl); } /* Now Fill in the free time spans. loop through the spans. if the start of the range is not within the span, create a free entry that runs from the start of the range to the start of the span. */ for (itr = pvl_head(sl->spans); itr != 0; itr = pvl_next(itr)) { struct icaltime_span *s = (struct icaltime_span *)pvl_data(itr); if ((freetime = (struct icaltime_span *)malloc(sizeof(struct icaltime_span))) == 0) { icalerror_set_errno(ICAL_NEWFAILED_ERROR); icalspanlist_free(sl); return 0; } if (range.start < s->start) { freetime->start = range.start; freetime->end = s->start; freetime->is_busy = 0; pvl_insert_ordered(sl->spans, compare_span, (void *)freetime); } else { free(freetime); } range.start = s->end; } /* If the end of the range is null, then assume that everything after the last item in the calendar is open and add a span that indicates this */ if (icaltime_is_null_time(end)) { struct icaltime_span *last_span; last_span = (struct icaltime_span *)pvl_data(pvl_tail(sl->spans)); if (last_span != 0) { if ((freetime = (struct icaltime_span *)malloc(sizeof(struct icaltime_span))) == 0) { icalerror_set_errno(ICAL_NEWFAILED_ERROR); icalspanlist_free(sl); return 0; } freetime->is_busy = 0; freetime->start = last_span->end; freetime->end = freetime->start; pvl_insert_ordered(sl->spans, compare_span, (void *)freetime); } } return sl; }