webcit/event.c

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