webcit/event.c

   1 /*
   2  * $Id$
   3  */
   4 /**
   5  * \defgroup EditCal Editing calendar events.
   6  * \ingroup Calendaring
   7  */
   8 /*@{*/
   9 #include "webcit.h"
  10 #include "webserver.h"
  11
  12
  13 #ifdef WEBCIT_WITH_CALENDAR_SERVICE
  14
  15 /**
  16  * \brief Display an event by itself (for editing)
  17  * \param supplied_vevent the event to edit
  18  * \param msgnum reference on the citserver
  19  */
  20 void display_edit_individual_event(icalcomponent *supplied_vevent, long msgnum, char *from, int unread) {
  21         icalcomponent *vevent;
  22         icalproperty *p;
  23         icalvalue *v;
  24         struct icaltimetype t_start, t_end;
  25         time_t now;
  26         struct tm tm_now;
  27         int created_new_vevent = 0;
  28         icalproperty *organizer = NULL;
  29         char organizer_string[SIZ];
  30         icalproperty *attendee = NULL;
  31         char attendee_string[SIZ];
  32         char buf[SIZ];
  33         int organizer_is_me = 0;
  34         int i;
  35         int sequence = 0;
  36
  37         lprintf(9, "display_edit_individual_event(%ld) calview=%s year=%s month=%s day=%s\n",
  38                 msgnum, bstr("calview"), bstr("year"), bstr("month"), bstr("day")
  39         );
  40
  41         now = time(NULL);
  42         strcpy(organizer_string, "");
  43         strcpy(attendee_string, "");
  44
  45         if (supplied_vevent != NULL) {
  46                 vevent = supplied_vevent;
  47                 /**
  48                  * If we're looking at a fully encapsulated VCALENDAR
  49                  * rather than a VEVENT component, attempt to use the first
  50                  * relevant VEVENT subcomponent.  If there is none, the
  51                  * NULL returned by icalcomponent_get_first_component() will
  52                  * tell the next iteration of this function to create a
  53                  * new one.
  54                  */
  55                 if (icalcomponent_isa(vevent) == ICAL_VCALENDAR_COMPONENT) {
  56                         display_edit_individual_event(
  57                                 icalcomponent_get_first_component(
  58                                         vevent, ICAL_VEVENT_COMPONENT),
  59                                 msgnum, from, unread
  60                         );
  61                         return;
  62                 }
  63         }
  64         else {
  65                 vevent = icalcomponent_new(ICAL_VEVENT_COMPONENT);
  66                 created_new_vevent = 1;
  67         }
  68
  69         /** Learn the sequence */
  70         p = icalcomponent_get_first_property(vevent, ICAL_SEQUENCE_PROPERTY);
  71         if (p != NULL) {
  72                 sequence = icalproperty_get_sequence(p);
  73         }
  74
  75         /** Begin output */
  76         output_headers(1, 1, 2, 0, 0, 0);
  77         wprintf("<div id=\"banner\">\n");
  78         wprintf("<h1>");
  79         wprintf(_("Add or edit an event"));
  80         wprintf("</h1>");
  81         wprintf("</div>\n");
  82
  83         wprintf("<div id=\"content\" class=\"service\">\n");
  84
  85         wprintf("<script type=\"text/javascript\">"
  86                 "function grey_all_day() { "
  87                         "if (document.EventForm.alldayevent.checked) {"
  88                                 "document.EventForm.dtstart_hour.value='0';"
  89                                 "document.EventForm.dtstart_hour.disabled = true;"
  90                                 "document.EventForm.dtstart_minute.value='0';"
  91                                 "document.EventForm.dtstart_minute.disabled = true;"
  92                                 "document.EventForm.dtend_hour.value='0';"
  93                                 "document.EventForm.dtend_hour.disabled = true;"
  94                                 "document.EventForm.dtend_minute.value='0';"
  95                                 "document.EventForm.dtend_minute.disabled = true;"
  96                                 "document.EventForm.dtend_month.disabled = true;"
  97                                 "document.EventForm.dtend_day.disabled = true;"
  98                                 "document.EventForm.dtend_year.disabled = true;"
  99                         "}"
 100                         "else {"
 101                                 "document.EventForm.dtstart_hour.disabled = false;"
 102                                 "document.EventForm.dtstart_minute.disabled = false;"
 103                                 "document.EventForm.dtend_hour.disabled = false;"
 104                                 "document.EventForm.dtend_minute.disabled = false;"
 105                                 "document.EventForm.dtend_month.disabled = false;"
 106                                 "document.EventForm.dtend_day.disabled = false;"
 107                                 "document.EventForm.dtend_year.disabled = false;"
 108                         "}"
 109                 "}"
 110                 "</script>\n"
 111         );
 112
 113
 114         wprintf("<div class=\"fix_scrollbar_bug\">"
 115                 "<table  class=\"event_background\"><tr><td>\n");
 116
 117         /************************************************************
 118          * Uncomment this to see the UID in calendar events for debugging
 119         wprintf("UID == ");
 120         p = icalcomponent_get_first_property(vevent, ICAL_UID_PROPERTY);
 121         if (p != NULL) {
 122                 escputs((char *)icalproperty_get_comment(p));
 123         }
 124         wprintf("<br />\n");
 125         wprintf("SEQUENCE == %d<br />\n", sequence);
 126         *************************************************************/
 127
 128         wprintf("<FORM NAME=\"EventForm\" METHOD=\"POST\" action=\"save_event\">\n");
 129         wprintf("<input type=\"hidden\" name=\"nonce\" value=\"%ld\">\n", WC->nonce);
 130
 131         wprintf("<INPUT TYPE=\"hidden\" NAME=\"msgnum\" VALUE=\"%ld\">\n",
 132                 msgnum);
 133         wprintf("<INPUT TYPE=\"hidden\" NAME=\"calview\" VALUE=\"%s\">\n",
 134                 bstr("calview"));
 135         wprintf("<INPUT TYPE=\"hidden\" NAME=\"year\" VALUE=\"%s\">\n",
 136                 bstr("year"));
 137         wprintf("<INPUT TYPE=\"hidden\" NAME=\"month\" VALUE=\"%s\">\n",
 138                 bstr("month"));
 139         wprintf("<INPUT TYPE=\"hidden\" NAME=\"day\" VALUE=\"%s\">\n",
 140                 bstr("day"));
 141
 142         /** Put it in a borderless table so it lines up nicely */
 143         wprintf("<TABLE border=0 width=100%%>\n");
 144
 145         wprintf("<TR><TD><B>");
 146         wprintf(_("Summary"));
 147         wprintf("</B></TD><TD>\n"
 148                 "<INPUT TYPE=\"text\" NAME=\"summary\" "
 149                 "MAXLENGTH=\"64\" SIZE=\"64\" VALUE=\"");
 150         p = icalcomponent_get_first_property(vevent, ICAL_SUMMARY_PROPERTY);
 151         if (p != NULL) {
 152                 escputs((char *)icalproperty_get_comment(p));
 153         }
 154         wprintf("\"></TD></TR>\n");
 155
 156         wprintf("<TR><TD><B>");
 157         wprintf(_("Location"));
 158         wprintf("</B></TD><TD>\n"
 159                 "<INPUT TYPE=\"text\" NAME=\"location\" "
 160                 "MAXLENGTH=\"64\" SIZE=\"64\" VALUE=\"");
 161         p = icalcomponent_get_first_property(vevent, ICAL_LOCATION_PROPERTY);
 162         if (p != NULL) {
 163                 escputs((char *)icalproperty_get_comment(p));
 164         }
 165         wprintf("\"></TD></TR>\n");
 166
 167         wprintf("<TR><TD><B>");
 168         wprintf(_("Start"));
 169         wprintf("</B></TD><TD>\n");
 170         p = icalcomponent_get_first_property(vevent, ICAL_DTSTART_PROPERTY);
 171         if (p != NULL) {
 172                 t_start = icalproperty_get_dtstart(p);
 173                 if (t_start.is_date) {
 174                         t_start.hour = 0;
 175                         t_start.minute = 0;
 176                         t_start.second = 0;
 177                 }
 178         }
 179         else {
 180                 localtime_r(&now, &tm_now);
 181                 if (!IsEmptyStr(bstr("year"))) {
 182                         tm_now.tm_year = atoi(bstr("year")) - 1900;
 183                         tm_now.tm_mon = atoi(bstr("month")) - 1;
 184                         tm_now.tm_mday = atoi(bstr("day"));
 185                 }
 186                 if (!IsEmptyStr(bstr("hour"))) {
 187                         tm_now.tm_hour = atoi(bstr("hour"));
 188                         tm_now.tm_min = atoi(bstr("minute"));
 189                         tm_now.tm_sec = 0;
 190                 }
 191                 else {
 192                         tm_now.tm_hour = 0;
 193                         tm_now.tm_min = 0;
 194                         tm_now.tm_sec = 0;
 195                 }
 196
 197                 t_start = icaltime_from_timet_with_zone(
 198                         mktime(&tm_now),
 199                         ((!strcasecmp(bstr("alldayevent"), "yes")) ? 1 : 0),
 200                         icaltimezone_get_utc_timezone()
 201                 );
 202                 t_start.is_utc = 1;
 203
 204         }
 205         display_icaltimetype_as_webform(&t_start, "dtstart");
 206
 207         wprintf("<INPUT TYPE=\"checkbox\" NAME=\"alldayevent\" "
 208                 "VALUE=\"yes\" onClick=\"grey_all_day();\""
 209                 " %s >%s",
 210                 (t_start.is_date ? "CHECKED" : "" ),
 211                 _("All day event")
 212         );
 213
 214         wprintf("</TD></TR>\n");
 215
 216         /**
 217          * If this is an all-day-event, set the end time to be identical to
 218          * the start time (the hour/minute/second will be set to midnight).
 219          * Otherwise extract or create it.
 220          */
 221         wprintf("<TR><TD><B>");
 222         wprintf(_("End"));
 223         wprintf("</B></TD><TD>\n");
 224         if (t_start.is_date) {
 225                 t_end = t_start;
 226         }
 227         else {
 228                 p = icalcomponent_get_first_property(vevent,
 229                                                         ICAL_DTEND_PROPERTY);
 230                 if (p != NULL) {
 231                         t_end = icalproperty_get_dtend(p);
 232                 }
 233                 else {
 234                         /**
 235                          * If this is not an all-day event and there is no
 236                          * end time specified, make the default one hour
 237                          * from the start time.
 238                          */
 239                         t_end = t_start;
 240                         t_end.hour += 1;
 241                         t_end.second = 0;
 242                         t_end = icaltime_normalize(t_end);
 243                         /* t_end = icaltime_from_timet(now, 0); */
 244                 }
 245         }
 246         display_icaltimetype_as_webform(&t_end, "dtend");
 247         wprintf("</TD></TR>\n");
 248
 249         wprintf("<TR><TD><B>");
 250         wprintf(_("Notes"));
 251         wprintf("</B></TD><TD>\n"
 252                 "<TEXTAREA NAME=\"description\" wrap=soft "
 253                 "ROWS=5 COLS=80 WIDTH=80>\n"
 254         );
 255         p = icalcomponent_get_first_property(vevent, ICAL_DESCRIPTION_PROPERTY);
 256         if (p != NULL) {
 257                 escputs((char *)icalproperty_get_comment(p));
 258         }
 259         wprintf("</TEXTAREA></TD></TR>");
 260
 261         /**
 262          * For a new event, the user creating the event should be the
 263          * organizer.  Set this field accordingly.
 264          */
 265         if (icalcomponent_get_first_property(vevent, ICAL_ORGANIZER_PROPERTY)
 266            == NULL) {
 267                 sprintf(organizer_string, "MAILTO:%s", WC->cs_inet_email);
 268                 icalcomponent_add_property(vevent,
 269                         icalproperty_new_organizer(organizer_string)
 270                 );
 271         }
 272
 273         /**
 274          * Determine who is the organizer of this event.
 275          * We need to determine "me" or "not me."
 276          */
 277         organizer = icalcomponent_get_first_property(vevent, ICAL_ORGANIZER_PROPERTY);
 278         if (organizer != NULL) {
 279                 strcpy(organizer_string, icalproperty_get_organizer(organizer));
 280                 if (!strncasecmp(organizer_string, "MAILTO:", 7)) {
 281                         strcpy(organizer_string, &organizer_string[7]);
 282                         striplt(organizer_string);
 283                         serv_printf("ISME %s", organizer_string);
 284                         serv_getln(buf, sizeof buf);
 285                         if (buf[0] == '2') {
 286                                 organizer_is_me = 1;
 287                         }
 288                 }
 289         }
 290
 291         wprintf("<TR><TD><B>");
 292         wprintf(_("Organizer"));
 293         wprintf("</B></TD><TD>");
 294         escputs(organizer_string);
 295         if (organizer_is_me) {
 296                 wprintf(" <FONT SIZE=-1><I>");
 297                 wprintf(_("(you are the organizer)"));
 298                 wprintf("</I></FONT>\n");
 299         }
 300
 301         /**
 302          * Transmit the organizer as a hidden field.   We don't want the user
 303          * to be able to change it, but we do want it fed back to the server,
 304          * especially if this is a new event and there is no organizer already
 305          * in the calendar object.
 306          */
 307         wprintf("<INPUT TYPE=\"hidden\" NAME=\"organizer\" VALUE=\"");
 308         escputs(organizer_string);
 309         wprintf("\">");
 310
 311         wprintf("</TD></TR>\n");
 312
 313         /** Transparency */
 314         wprintf("<TR><TD><B>");
 315         wprintf(_("Show time as:"));
 316         wprintf("</B></TD><TD>");
 317
 318         p = icalcomponent_get_first_property(vevent, ICAL_TRANSP_PROPERTY);
 319         if (p == NULL) {
 320                 /** No transparency found.  Default to opaque (busy). */
 321                 p = icalproperty_new_transp(ICAL_TRANSP_OPAQUE);
 322                 if (p != NULL) {
 323                         icalcomponent_add_property(vevent, p);
 324                 }
 325         }
 326         if (p != NULL) {
 327                 v = icalproperty_get_value(p);
 328         }
 329         else {
 330                 v = NULL;
 331         }
 332
 333         wprintf("<INPUT TYPE=\"radio\" NAME=\"transp\" VALUE=\"transparent\"");
 334         if (v != NULL) if (icalvalue_get_transp(v) == ICAL_TRANSP_TRANSPARENT)
 335                 wprintf(" CHECKED");
 336         wprintf(">");
 337         wprintf(_("Free"));
 338         wprintf("&nbsp;&nbsp;");
 339
 340         wprintf("<INPUT TYPE=\"radio\" NAME=\"transp\" VALUE=\"opaque\"");
 341         if (v != NULL) if (icalvalue_get_transp(v) == ICAL_TRANSP_OPAQUE)
 342                 wprintf(" CHECKED");
 343         wprintf(">");
 344         wprintf(_("Busy"));
 345
 346         wprintf("</TD></TR>\n");
 347
 348         /** Attendees */
 349         wprintf("<TR><TD><B>");
 350         wprintf(_("Attendees"));
 351         wprintf("</B><br />"
 352                 "<font size=-2>");
 353         wprintf(_("(One per line)"));
 354         wprintf("</font>\n");
 355
 356         /** Pop open an address book -- begin **/
 357         wprintf(
 358                 "&nbsp;<a href=\"javascript:PopOpenAddressBook('attendees_box|%s');\" "
 359                 "title=\"%s\">"
 360                 "<img align=middle border=0 width=24 height=24 src=\"static/viewcontacts_24x.gif\">"
 361                 "</a>",
 362                 _("Attendees"),
 363                 _("Contacts")
 364         );
 365         /** Pop open an address book -- end **/
 366
 367         wprintf("</TD><TD>"
 368                 "<TEXTAREA %s NAME=\"attendees\" id=\"attendees_box\" wrap=soft "
 369                 "ROWS=3 COLS=80 WIDTH=80>\n",
 370                 (organizer_is_me ? "" : "DISABLED ")
 371         );
 372         i = 0;
 373         for (attendee = icalcomponent_get_first_property(vevent, ICAL_ATTENDEE_PROPERTY);
 374             attendee != NULL;
 375             attendee = icalcomponent_get_next_property(vevent, ICAL_ATTENDEE_PROPERTY)) {
 376                 strcpy(attendee_string, icalproperty_get_attendee(attendee));
 377                 if (!strncasecmp(attendee_string, "MAILTO:", 7)) {
 378
 379                         /** screen name or email address */
 380                         strcpy(attendee_string, &attendee_string[7]);
 381                         striplt(attendee_string);
 382                         if (i++) wprintf("\n");
 383                         escputs(attendee_string);
 384                         wprintf(" ");
 385
 386                         /** participant status */
 387                         partstat_as_string(buf, attendee);
 388                         escputs(buf);
 389                 }
 390         }
 391         wprintf("</TEXTAREA></TD></TR>\n");
 392
 393         /** Done with properties. */
 394         wprintf("</TABLE>\n<CENTER>"
 395                 "<INPUT TYPE=\"submit\" NAME=\"save_button\" VALUE=\"%s\">"
 396                 "&nbsp;&nbsp;"
 397                 "<INPUT TYPE=\"submit\" NAME=\"delete_button\" VALUE=\"%s\">\n"
 398                 "&nbsp;&nbsp;"
 399                 "<INPUT TYPE=\"submit\" NAME=\"check_button\" "
 400                                 "VALUE=\"%s\">\n"
 401                 "&nbsp;&nbsp;"
 402                 "<INPUT TYPE=\"submit\" NAME=\"cancel_button\" VALUE=\"%s\">\n"
 403                 "</CENTER>\n",
 404                 _("Save"),
 405                 _("Delete"),
 406                 _("Check attendee availability"),
 407                 _("Cancel")
 408         );
 409
 410         wprintf("</FORM>\n");
 411
 412         wprintf("</td></tr></table></div>\n");
 413         wprintf("<script type=\"text/javascript\">"
 414                 "grey_all_day();"
 415                 "</script>\n"
 416         );
 417
 418         address_book_popup();
 419         wDumpContent(1);
 420
 421         if (created_new_vevent) {
 422                 icalcomponent_free(vevent);
 423         }
 424 }
 425
 426 /**
 427  * \brief Save an edited event
 428  * \param supplied_vevent the event to save
 429  * \param msgnum the index on the citserver
 430  */
 431 void save_individual_event(icalcomponent *supplied_vevent, long msgnum, char *from, int unread) {
 432         char buf[SIZ];
 433         icalproperty *prop;
 434         icalcomponent *vevent, *encaps;
 435         int created_new_vevent = 0;
 436         int all_day_event = 0;
 437         struct icaltimetype event_start, t;
 438         icalproperty *attendee = NULL;
 439         char attendee_string[SIZ];
 440         int i, j;
 441         int foundit;
 442         char form_attendees[SIZ];
 443         char organizer_string[SIZ];
 444         int sequence = 0;
 445         enum icalproperty_transp formtransp = ICAL_TRANSP_NONE;
 446
 447         if (supplied_vevent != NULL) {
 448                 vevent = supplied_vevent;
 449                 /**
 450                  * If we're looking at a fully encapsulated VCALENDAR
 451                  * rather than a VEVENT component, attempt to use the first
 452                  * relevant VEVENT subcomponent.  If there is none, the
 453                  * NULL returned by icalcomponent_get_first_component() will
 454                  * tell the next iteration of this function to create a
 455                  * new one.
 456                  */
 457                 if (icalcomponent_isa(vevent) == ICAL_VCALENDAR_COMPONENT) {
 458                         save_individual_event(
 459                                 icalcomponent_get_first_component(
 460                                         vevent, ICAL_VEVENT_COMPONENT),
 461                                 msgnum, from, unread
 462                         );
 463                         return;
 464                 }
 465         }
 466         else {
 467                 vevent = icalcomponent_new(ICAL_VEVENT_COMPONENT);
 468                 created_new_vevent = 1;
 469         }
 470
 471         if ( (!IsEmptyStr(bstr("save_button")))
 472            || (!IsEmptyStr(bstr("check_button"))) ) {
 473
 474                 /** Replace values in the component with ones from the form */
 475
 476                 while (prop = icalcomponent_get_first_property(vevent,
 477                       ICAL_SUMMARY_PROPERTY), prop != NULL) {
 478                         icalcomponent_remove_property(vevent, prop);
 479                         icalproperty_free(prop);
 480                 }
 481
 482                 if (!IsEmptyStr(bstr("summary"))) {
 483
 484                         icalcomponent_add_property(vevent,
 485                                         icalproperty_new_summary(bstr("summary")));
 486                 } else {
 487                         icalcomponent_add_property(vevent,
 488                                         icalproperty_new_summary("Untitled Event"));
 489                 }
 490
 491                 while (prop = icalcomponent_get_first_property(vevent,
 492                                         ICAL_LOCATION_PROPERTY), prop != NULL) {
 493                         icalcomponent_remove_property(vevent, prop);
 494                         icalproperty_free(prop);
 495                 }
 496                 if (!IsEmptyStr(bstr("location"))) {
 497                         icalcomponent_add_property(vevent,
 498                                         icalproperty_new_location(bstr("location")));
 499                 }
 500                 while (prop = icalcomponent_get_first_property(vevent,
 501                                   ICAL_DESCRIPTION_PROPERTY), prop != NULL) {
 502                         icalcomponent_remove_property(vevent, prop);
 503                         icalproperty_free(prop);
 504                 }
 505                 if (!IsEmptyStr(bstr("description"))) {
 506                         icalcomponent_add_property(vevent,
 507                                 icalproperty_new_description(bstr("description")));
 508                 }
 509
 510                 while (prop = icalcomponent_get_first_property(vevent,
 511                       ICAL_DTSTART_PROPERTY), prop != NULL) {
 512                         icalcomponent_remove_property(vevent, prop);
 513                         icalproperty_free(prop);
 514                 }
 515
 516                 if (!strcmp(bstr("alldayevent"), "yes")) {
 517                         all_day_event = 1;
 518                 }
 519                 else {
 520                         all_day_event = 0;
 521                 }
 522
 523                 if (all_day_event) {
 524                         icaltime_from_webform_dateonly(&event_start, "dtstart");
 525                 }
 526                 else {
 527                         icaltime_from_webform(&event_start, "dtstart");
 528                 }
 529
 530                 /**
 531                  * The following odd-looking snippet of code looks like it
 532                  * takes some unnecessary steps.  It is done this way because
 533                  * libical incorrectly turns an "all day event" into a normal
 534                  * event starting at midnight (i.e. it serializes as date/time
 535                  * instead of just date) unless icalvalue_new_date() is used.
 536                  * So we force it, if this is an all day event.
 537                  */
 538                 prop = icalproperty_new_dtstart(event_start);
 539                 if (all_day_event) {
 540                         icalproperty_set_value(prop, icalvalue_new_date(event_start));
 541                 }
 542
 543                 if (prop) icalcomponent_add_property(vevent, prop);
 544                 else icalproperty_free(prop);
 545
 546                 while (prop = icalcomponent_get_first_property(vevent,
 547                       ICAL_DTEND_PROPERTY), prop != NULL) {
 548                         icalcomponent_remove_property(vevent, prop);
 549                         icalproperty_free(prop);
 550                 }
 551                 while (prop = icalcomponent_get_first_property(vevent,
 552                       ICAL_DURATION_PROPERTY), prop != NULL) {
 553                         icalcomponent_remove_property(vevent, prop);
 554                         icalproperty_free(prop);
 555                 }
 556
 557                 if (all_day_event == 0) {
 558                         icaltime_from_webform(&t, "dtend");
 559                         icalcomponent_add_property(vevent,
 560                                 icalproperty_new_dtend(icaltime_normalize(t)
 561                                 )
 562                         );
 563                 }
 564
 565                 /** See if transparency is indicated */
 566                 if (!IsEmptyStr(bstr("transp"))) {
 567                         if (!strcasecmp(bstr("transp"), "opaque")) {
 568                                 formtransp = ICAL_TRANSP_OPAQUE;
 569                         }
 570                         else if (!strcasecmp(bstr("transp"), "transparent")) {
 571                                 formtransp = ICAL_TRANSP_TRANSPARENT;
 572                         }
 573
 574                         while (prop = icalcomponent_get_first_property(vevent, ICAL_TRANSP_PROPERTY),
 575                               (prop != NULL)) {
 576                                 icalcomponent_remove_property(vevent, prop);
 577                                 icalproperty_free(prop);
 578                         }
 579
 580                         icalcomponent_add_property(vevent, icalproperty_new_transp(formtransp));
 581                 }
 582
 583                 /** Give this event a UID if it doesn't have one. */
 584                 if (icalcomponent_get_first_property(vevent,
 585                    ICAL_UID_PROPERTY) == NULL) {
 586                         generate_uuid(buf);
 587                         icalcomponent_add_property(vevent, icalproperty_new_uid(buf));
 588                 }
 589
 590                 /** Increment the sequence ID */
 591                 while (prop = icalcomponent_get_first_property(vevent,
 592                       ICAL_SEQUENCE_PROPERTY), (prop != NULL) ) {
 593                         i = icalproperty_get_sequence(prop);
 594                         if (i > sequence) sequence = i;
 595                         icalcomponent_remove_property(vevent, prop);
 596                         icalproperty_free(prop);
 597                 }
 598                 ++sequence;
 599                 icalcomponent_add_property(vevent,
 600                         icalproperty_new_sequence(sequence)
 601                 );
 602
 603                 /**
 604                  * Set the organizer, only if one does not already exist *and*
 605                  * the form is supplying one
 606                  */
 607                 strcpy(buf, bstr("organizer"));
 608                 if ( (icalcomponent_get_first_property(vevent,
 609                    ICAL_ORGANIZER_PROPERTY) == NULL)
 610                    && (!IsEmptyStr(buf)) ) {
 611
 612                         /** set new organizer */
 613                         sprintf(organizer_string, "MAILTO:%s", buf);
 614                         icalcomponent_add_property(vevent,
 615                                 icalproperty_new_organizer(organizer_string)
 616                         );
 617
 618                 }
 619
 620                 /**
 621                  * Add any new attendees listed in the web form
 622                  */
 623
 624                 /* First, strip out the parenthesized partstats.  */
 625                 strcpy(form_attendees, bstr("attendees"));
 626                 stripout(form_attendees, '(', ')');
 627
 628                 /* Next, change any commas to newlines, because we want newline-separated attendees. */
 629                 j = strlen(form_attendees);
 630                 for (i=0; i<j; ++i) {
 631                         if (form_attendees[i] == ',') {
 632                                 form_attendees[i] = '\n';
 633                                 while (isspace(form_attendees[i+1])) {
 634                                         strcpy(&form_attendees[i+1], &form_attendees[i+2]);
 635                                 }
 636                         }
 637                 }
 638
 639                 /** Now iterate! */
 640                 for (i=0; i<num_tokens(form_attendees, '\n'); ++i) {
 641                         extract_token(buf, form_attendees, i, '\n', sizeof buf);
 642                         striplt(buf);
 643                         if (!IsEmptyStr(buf)) {
 644                                 sprintf(attendee_string, "MAILTO:%s", buf);
 645                                 foundit = 0;
 646
 647                                 for (attendee = icalcomponent_get_first_property(vevent, ICAL_ATTENDEE_PROPERTY); attendee != NULL; attendee = icalcomponent_get_next_property(vevent, ICAL_ATTENDEE_PROPERTY)) {
 648                                         if (!strcasecmp(attendee_string,
 649                                            icalproperty_get_attendee(attendee)))
 650                                                 ++foundit;
 651                                 }
 652
 653
 654                                 if (foundit == 0) {
 655                                         icalcomponent_add_property(vevent,
 656                                                 icalproperty_new_attendee(attendee_string)
 657                                         );
 658                                 }
 659                         }
 660                 }
 661
 662                 /**
 663                  * Remove any attendees *not* listed in the web form
 664                  */
 665 STARTOVER:      for (attendee = icalcomponent_get_first_property(vevent, ICAL_ATTENDEE_PROPERTY); attendee != NULL; attendee = icalcomponent_get_next_property(vevent, ICAL_ATTENDEE_PROPERTY)) {
 666                         strcpy(attendee_string, icalproperty_get_attendee(attendee));
 667                         if (!strncasecmp(attendee_string, "MAILTO:", 7)) {
 668                                 strcpy(attendee_string, &attendee_string[7]);
 669                                 striplt(attendee_string);
 670                                 foundit = 0;
 671                                 for (i=0; i<num_tokens(form_attendees, '\n'); ++i) {
 672                                         extract_token(buf, form_attendees, i, '\n', sizeof buf);
 673                                         striplt(buf);
 674                                         if (!strcasecmp(buf, attendee_string)) ++foundit;
 675                                 }
 676                                 if (foundit == 0) {
 677                                         icalcomponent_remove_property(vevent, attendee);
 678                                         icalproperty_free(attendee);
 679                                         goto STARTOVER;
 680                                 }
 681                         }
 682                 }
 683
 684                 /**
 685                  * Encapsulate event into full VCALENDAR component.  Clone it first,
 686                  * for two reasons: one, it's easier to just free the whole thing
 687                  * when we're done instead of unbundling, but more importantly, we
 688                  * can't encapsulate something that may already be encapsulated
 689                  * somewhere else.
 690                  */
 691                 encaps = ical_encapsulate_subcomponent(icalcomponent_new_clone(vevent));
 692
 693                 /* Set the method to PUBLISH */
 694                 icalcomponent_set_method(encaps, ICAL_METHOD_PUBLISH);
 695
 696                 /** If the user clicked 'Save' then save it to the server. */
 697                 if ( (encaps != NULL) && (!IsEmptyStr(bstr("save_button"))) ) {
 698                         serv_puts("ENT0 1|||4|||1|");
 699                         serv_getln(buf, sizeof buf);
 700                         if (buf[0] == '8') {
 701                                 serv_puts("Content-type: text/calendar");
 702                                 serv_puts("");
 703                                 serv_puts(icalcomponent_as_ical_string(encaps));
 704                                 serv_puts("000");
 705                         }
 706                         if ( (buf[0] == '8') || (buf[0] == '4') ) {
 707                                 while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
 708                                 }
 709                         }
 710                         if (buf[0] == '2') {
 711                                 strcpy(WC->ImportantMessage, &buf[4]);
 712                         }
 713                         icalmemory_free_ring ();
 714                         icalcomponent_free(encaps);
 715                 }
 716
 717                 /** Or, check attendee availability if the user asked for that. */
 718                 if ( (encaps != NULL) && (!IsEmptyStr(bstr("check_button"))) ) {
 719
 720                         /** Call this function, which does the real work */
 721                         check_attendee_availability(encaps);
 722
 723                         /** This displays the form again, with our annotations */
 724                         display_edit_individual_event(encaps, msgnum, from, unread);
 725
 726                         icalcomponent_free(encaps);
 727                 }
 728
 729         }
 730
 731         /**
 732          * If the user clicked 'Delete' then delete it.
 733          */
 734         if ( (!IsEmptyStr(bstr("delete_button"))) && (msgnum > 0L) ) {
 735                 serv_printf("DELE %ld", atol(bstr("msgnum")));
 736                 serv_getln(buf, sizeof buf);
 737         }
 738
 739         if (created_new_vevent) {
 740                 icalcomponent_free(vevent);
 741         }
 742
 743         /** If this was a save or delete, go back to the calendar view. */
 744         if (IsEmptyStr(bstr("check_button"))) {
 745                 readloop("readfwd");
 746         }
 747 }
 748
 749
 750 #endif /* WEBCIT_WITH_CALENDAR_SERVICE */
 751
 752 /*@}*/