webcit/event.c

   1 /*
   2  * $Id$
   3  *
   4  * Editing calendar events.
   5  *
   6  */
   7
   8 #include <ctype.h>
   9 #include <stdlib.h>
  10 #include <unistd.h>
  11 #include <stdio.h>
  12 #include <fcntl.h>
  13 #include <signal.h>
  14 #include <sys/types.h>
  15 #include <sys/wait.h>
  16 #include <sys/socket.h>
  17 #include <limits.h>
  18 #include <netinet/in.h>
  19 #include <netdb.h>
  20 #include <string.h>
  21 #include <pwd.h>
  22 #include <errno.h>
  23 #include <stdarg.h>
  24 #include <pthread.h>
  25 #include <signal.h>
  26 #include <time.h>
  27 #include "webcit.h"
  28 #include "webserver.h"
  29
  30
  31 #ifdef WEBCIT_WITH_CALENDAR_SERVICE
  32
  33 /*
  34  * Display an event by itself (for editing)
  35  *
  36  * ok
  37  */
  38 void display_edit_individual_event(icalcomponent *supplied_vevent, long msgnum) {
  39         icalcomponent *vevent;
  40         icalproperty *p;
  41         icalvalue *v;
  42         struct icaltimetype t_start, t_end;
  43         time_t now;
  44         struct tm tm_now;
  45         int created_new_vevent = 0;
  46         icalproperty *organizer = NULL;
  47         char organizer_string[SIZ];
  48         icalproperty *attendee = NULL;
  49         char attendee_string[SIZ];
  50         char buf[SIZ];
  51         int i;
  52         int organizer_is_me = 0;
  53         int sequence = 0;
  54
  55         now = time(NULL) % 60;  /* mod 60 to force :00 seconds */
  56         strcpy(organizer_string, "");
  57         strcpy(attendee_string, "");
  58
  59         if (supplied_vevent != NULL) {
  60                 vevent = supplied_vevent;
  61                 /* If we're looking at a fully encapsulated VCALENDAR
  62                  * rather than a VTODO component, attempt to use the first
  63                  * relevant VTODO subcomponent.  If there is none, the
  64                  * NULL returned by icalcomponent_get_first_component() will
  65                  * tell the next iteration of this function to create a
  66                  * new one.
  67                  */
  68                 if (icalcomponent_isa(vevent) == ICAL_VCALENDAR_COMPONENT) {
  69                         display_edit_individual_event(
  70                                 icalcomponent_get_first_component(
  71                                         vevent, ICAL_VTODO_COMPONENT
  72                                 ), msgnum
  73                         );
  74                         return;
  75                 }
  76         }
  77         else {
  78                 vevent = icalcomponent_new(ICAL_VEVENT_COMPONENT);
  79                 created_new_vevent = 1;
  80         }
  81
  82         /* Learn the sequence */
  83         p = icalcomponent_get_first_property(vevent, ICAL_SEQUENCE_PROPERTY);
  84         if (p != NULL) {
  85                 sequence = icalproperty_get_sequence(p);
  86         }
  87
  88         /* Begin output */
  89         output_headers(3);
  90         wprintf("<TABLE WIDTH=100%% BORDER=0 BGCOLOR=007700><TR><TD>"
  91                 "<IMG ALIGN=CENTER SRC=\"/static/vcalendar.gif\">"
  92                 "<FONT SIZE=+1 COLOR=\"FFFFFF\""
  93                 "<B>Edit event</B>"
  94                 "</FONT></TD></TR></TABLE><BR>\n"
  95         );
  96
  97         /************************************************************
  98          * Uncomment this to see the UID in calendar events for debugging
  99         wprintf("UID == ");
 100         p = icalcomponent_get_first_property(vevent, ICAL_UID_PROPERTY);
 101         if (p != NULL) {
 102                 escputs((char *)icalproperty_get_comment(p));
 103         }
 104         wprintf("<BR>\n");
 105         wprintf("SEQUENCE == %d<BR>\n", sequence);
 106         *************************************************************/
 107
 108         wprintf("<FORM NAME=\"EventForm\" METHOD=\"POST\" ACTION=\"/save_event\">\n");
 109
 110         wprintf("<INPUT TYPE=\"hidden\" NAME=\"msgnum\" VALUE=\"%ld\">\n",
 111                 msgnum);
 112         wprintf("<INPUT TYPE=\"hidden\" NAME=\"calview\" VALUE=\"%s\">\n",
 113                 bstr("calview"));
 114         wprintf("<INPUT TYPE=\"hidden\" NAME=\"year\" VALUE=\"%s\">\n",
 115                 bstr("year"));
 116         wprintf("<INPUT TYPE=\"hidden\" NAME=\"month\" VALUE=\"%s\">\n",
 117                 bstr("month"));
 118         wprintf("<INPUT TYPE=\"hidden\" NAME=\"day\" VALUE=\"%s\">\n",
 119                 bstr("day"));
 120
 121         /* Put it in a borderless table so it lines up nicely */
 122         wprintf("<TABLE border=0 width=100%%>\n");
 123
 124         wprintf("<TR><TD><B>Summary</B></TD><TD>\n"
 125                 "<INPUT TYPE=\"text\" NAME=\"summary\" "
 126                 "MAXLENGTH=\"64\" SIZE=\"64\" VALUE=\"");
 127         p = icalcomponent_get_first_property(vevent, ICAL_SUMMARY_PROPERTY);
 128         if (p != NULL) {
 129                 escputs((char *)icalproperty_get_comment(p));
 130         }
 131         wprintf("\"></TD></TR>\n");
 132
 133         wprintf("<TR><TD><B>Location</B></TD><TD>\n"
 134                 "<INPUT TYPE=\"text\" NAME=\"location\" "
 135                 "MAXLENGTH=\"64\" SIZE=\"64\" VALUE=\"");
 136         p = icalcomponent_get_first_property(vevent, ICAL_LOCATION_PROPERTY);
 137         if (p != NULL) {
 138                 escputs((char *)icalproperty_get_comment(p));
 139         }
 140         wprintf("\"></TD></TR>\n");
 141
 142         wprintf("<TR><TD><B>Start</B></TD><TD>\n");
 143         p = icalcomponent_get_first_property(vevent, ICAL_DTSTART_PROPERTY);
 144         if (p != NULL) {
 145                 t_start = icalproperty_get_dtstart(p);
 146                 if (t_start.is_date) {
 147                         t_start.hour = 0;
 148                         t_start.minute = 0;
 149                         t_start.second = 0;
 150                 }
 151         }
 152         else {
 153                 memcpy(&tm_now, localtime(&now), sizeof(struct tm));
 154                 tm_now.tm_year = atoi(bstr("year")) - 1900;
 155                 tm_now.tm_mon = atoi(bstr("month")) - 1;
 156                 tm_now.tm_mday = atoi(bstr("day"));
 157                 if (strlen(bstr("hour")) > 0) {
 158                         tm_now.tm_hour = atoi(bstr("hour"));
 159                         tm_now.tm_min = atoi(bstr("minute"));
 160                         tm_now.tm_sec = 0;
 161                 }
 162                 else {
 163                         tm_now.tm_hour = 9;
 164                         tm_now.tm_min = 0;
 165                         tm_now.tm_sec = 0;
 166                 }
 167
 168                 t_start = icaltime_from_timet_with_zone(
 169                         mktime(&tm_now),
 170                         ((!strcasecmp(bstr("alldayevent"), "yes")) ? 1 : 0),
 171                         icaltimezone_get_utc_timezone
 172                 );
 173                 t_start.is_utc = 1;
 174
 175         }
 176         display_icaltimetype_as_webform(&t_start, "dtstart");
 177
 178         wprintf("<INPUT TYPE=\"checkbox\" NAME=\"alldayevent\" "
 179                 "VALUE=\"yes\" onClick=\"
 180
 181                         if (this.checked) {
 182                                 this.form.dtstart_hour.value='0';
 183                                 this.form.dtstart_hour.disabled = true;
 184                                 this.form.dtstart_minute.value='0';
 185                                 this.form.dtstart_minute.disabled = true;
 186                                 this.form.dtend_hour.value='0';
 187                                 this.form.dtend_hour.disabled = true;
 188                                 this.form.dtend_minute.value='0';
 189                                 this.form.dtend_minute.disabled = true;
 190                                 this.form.dtend_month.disabled = true;
 191                                 this.form.dtend_day.disabled = true;
 192                                 this.form.dtend_year.disabled = true;
 193                         }
 194                         else {
 195                                 this.form.dtstart_hour.disabled = false;
 196                                 this.form.dtstart_minute.disabled = false;
 197                                 this.form.dtend_hour.disabled = false;
 198                                 this.form.dtend_minute.disabled = false;
 199                                 this.form.dtend_month.disabled = false;
 200                                 this.form.dtend_day.disabled = false;
 201                                 this.form.dtend_year.disabled = false;
 202                         }
 203
 204
 205                 \" %s >All day event",
 206                 (t_start.is_date ? "CHECKED" : "" )
 207         );
 208
 209         wprintf("</TD></TR>\n");
 210
 211         /* If this is an all-day-event, set the end time to be identical to
 212          * the start time (the hour/minute/second will be set to midnight).
 213          * Otherwise extract or create it.
 214          */
 215         wprintf("<TR><TD><B>End</B></TD><TD>\n");
 216         if (t_start.is_date) {
 217                 t_end = t_start;
 218         }
 219         else {
 220                 p = icalcomponent_get_first_property(vevent,
 221                                                         ICAL_DTEND_PROPERTY);
 222                 if (p != NULL) {
 223                         t_end = icalproperty_get_dtend(p);
 224                 }
 225                 else {
 226                         /* If this is not an all-day event and there is no
 227                          * end time specified, make the default one hour
 228                          * from the start time.
 229                          */
 230                         t_end = t_start;
 231                         t_end.hour += 1;
 232                         t_end.second = 0;
 233                         t_end = icaltime_normalize(t_end);
 234                         /* t_end = icaltime_from_timet(now, 0); */
 235                 }
 236         }
 237         display_icaltimetype_as_webform(&t_end, "dtend");
 238         wprintf("</TD></TR>\n");
 239
 240         wprintf("<TR><TD><B>Notes</B></TD><TD>\n"
 241                 "<TEXTAREA NAME=\"description\" wrap=soft "
 242                 "ROWS=10 COLS=80 WIDTH=80>\n"
 243         );
 244         p = icalcomponent_get_first_property(vevent, ICAL_DESCRIPTION_PROPERTY);
 245         if (p != NULL) {
 246                 escputs((char *)icalproperty_get_comment(p));
 247         }
 248         wprintf("</TEXTAREA></TD></TR>");
 249
 250         /* For a new event, the user creating the event should be the
 251          * organizer.  Set this field accordingly.
 252          */
 253         if (icalcomponent_get_first_property(vevent, ICAL_ORGANIZER_PROPERTY)
 254            == NULL) {
 255                 sprintf(organizer_string, "MAILTO:%s", WC->cs_inet_email);
 256                 icalcomponent_add_property(vevent,
 257                         icalproperty_new_organizer(organizer_string)
 258                 );
 259         }
 260
 261         /* Determine who is the organizer of this event.
 262          * We need to determine "me" or "not me."
 263          */
 264         organizer = icalcomponent_get_first_property(vevent,
 265                                                 ICAL_ORGANIZER_PROPERTY);
 266         if (organizer != NULL) {
 267                 strcpy(organizer_string, icalproperty_get_organizer(organizer));
 268                 if (!strncasecmp(organizer_string, "MAILTO:", 7)) {
 269                         strcpy(organizer_string, &organizer_string[7]);
 270                         striplt(organizer_string);
 271                         lprintf(9, "ISME %s\n", organizer_string);
 272                         serv_printf("ISME %s", organizer_string);
 273                         serv_gets(buf);
 274                         lprintf(9, "%s\n", buf);
 275                         if (buf[0] == '2') {
 276                                 organizer_is_me = 1;
 277                         }
 278                 }
 279         }
 280
 281         wprintf("<TR><TD><B>Organizer</B></TD><TD>");
 282         escputs(organizer_string);
 283         if (organizer_is_me) {
 284                 wprintf(" <FONT SIZE=-1><I>"
 285                         "(you are the organizer)</I></FONT>\n");
 286         }
 287
 288         /*
 289          * Transmit the organizer as a hidden field.   We don't want the user
 290          * to be able to change it, but we do want it fed back to the server,
 291          * especially if this is a new event and there is no organizer already
 292          * in the calendar object.
 293          */
 294         wprintf("<INPUT TYPE=\"hidden\" NAME=\"organizer\" VALUE=\"");
 295         escputs(organizer_string);
 296         wprintf("\">");
 297
 298         wprintf("</TD></TR>\n");
 299
 300         /* Transparency */
 301         wprintf("<TR><TD><B>Show time as:</B></TD><TD>");
 302
 303         p = icalcomponent_get_first_property(vevent, ICAL_TRANSP_PROPERTY);
 304         if (p == NULL) {
 305                 /* No transparency found.  Default to opaque (busy). */
 306                 p = icalproperty_new_transp(ICAL_TRANSP_OPAQUE);
 307                 if (p != NULL) {
 308                         icalcomponent_add_property(vevent, p);
 309                 }
 310         }
 311         if (p != NULL) {
 312                 v = icalproperty_get_value(p);
 313         }
 314         else {
 315                 v = NULL;
 316         }
 317
 318         wprintf("<INPUT TYPE=\"radio\" NAME=\"transp\" VALUE=\"transparent\"");
 319         if (v != NULL) if (icalvalue_get_transp(v) == ICAL_TRANSP_TRANSPARENT)
 320                 wprintf(" CHECKED");
 321         wprintf(">Free&nbsp;&nbsp;");
 322
 323         wprintf("<INPUT TYPE=\"radio\" NAME=\"transp\" VALUE=\"opaque\"");
 324         if (v != NULL) if (icalvalue_get_transp(v) == ICAL_TRANSP_OPAQUE)
 325                 wprintf(" CHECKED");
 326         wprintf(">Busy");
 327
 328         wprintf("</TD></TR>\n");
 329
 330         /* Attendees */
 331         wprintf("<TR><TD><B>Attendees</B><BR>"
 332                 "<FONT SIZE=-2>(Separate multiple attendees with commas)"
 333                 "</FONT></TD><TD>"
 334                 "<TEXTAREA %s NAME=\"attendees\" wrap=soft "
 335                 "ROWS=3 COLS=80 WIDTH=80>\n",
 336                 (organizer_is_me ? "" : "DISABLED ")
 337         );
 338         i = 0;
 339         for (attendee = icalcomponent_get_first_property(vevent, ICAL_ATTENDEE_PROPERTY); attendee != NULL; attendee = icalcomponent_get_next_property(vevent, ICAL_ATTENDEE_PROPERTY)) {
 340                 strcpy(attendee_string, icalproperty_get_attendee(attendee));
 341                 if (!strncasecmp(attendee_string, "MAILTO:", 7)) {
 342
 343                         /* screen name or email address */
 344                         strcpy(attendee_string, &attendee_string[7]);
 345                         striplt(attendee_string);
 346                         if (i++) wprintf(", ");
 347                         escputs(attendee_string);
 348                         wprintf(" ");
 349
 350                         /* participant status */
 351                         partstat_as_string(buf, attendee);
 352                         escputs(buf);
 353                 }
 354         }
 355         wprintf("</TEXTAREA></TD></TR>\n");
 356
 357         /* Done with properties. */
 358         wprintf("</TABLE>\n<CENTER>"
 359                 "<INPUT TYPE=\"submit\" NAME=\"sc\" VALUE=\"Save\">"
 360                 "&nbsp;&nbsp;"
 361                 "<INPUT TYPE=\"submit\" NAME=\"sc\" VALUE=\"Delete\">\n"
 362                 "&nbsp;&nbsp;"
 363                 "<INPUT TYPE=\"submit\" NAME=\"sc\" VALUE=\"Cancel\">\n"
 364                 "</CENTER>\n"
 365         );
 366
 367         wprintf("</FORM>\n");
 368
 369         wprintf("<SCRIPT language=\"javascript\">
 370                 <!--
 371
 372                         if (document.EventForm.alldayevent.checked) {
 373                                 document.EventForm.dtstart_hour.value='0';
 374                                 document.EventForm.dtstart_hour.disabled = true;
 375                                 document.EventForm.dtstart_minute.value='0';
 376                                 document.EventForm.dtstart_minute.disabled = true;
 377                                 document.EventForm.dtend_hour.value='0';
 378                                 document.EventForm.dtend_hour.disabled = true;
 379                                 document.EventForm.dtend_minute.value='0';
 380                                 document.EventForm.dtend_minute.disabled = true;
 381                                 document.EventForm.dtend_month.disabled = true;
 382                                 document.EventForm.dtend_day.disabled = true;
 383                                 document.EventForm.dtend_year.disabled = true;
 384                         }
 385                         else {
 386                                 document.EventForm.dtstart_hour.disabled = false;
 387                                 document.EventForm.dtstart_minute.disabled = false;
 388                                 document.EventForm.dtend_hour.disabled = false;
 389                                 document.EventForm.dtend_minute.disabled = false;
 390                                 document.EventForm.dtend_month.disabled = false;
 391                                 document.EventForm.dtend_day.disabled = false;
 392                                 document.EventForm.dtend_year.disabled = false;
 393                         }
 394                 //-->
 395                 </SCRIPT>
 396         ");
 397
 398         wDumpContent(1);
 399
 400         if (created_new_vevent) {
 401                 icalcomponent_free(vevent);
 402         }
 403 }
 404
 405 /*
 406  * Save an edited event
 407  *
 408  * ok
 409  */
 410 void save_individual_event(icalcomponent *supplied_vevent, long msgnum) {
 411         char buf[SIZ];
 412         icalproperty *prop;
 413         icalcomponent *vevent;
 414         int created_new_vevent = 0;
 415         int all_day_event = 0;
 416         struct icaltimetype event_start;
 417         icalproperty *attendee = NULL;
 418         char attendee_string[SIZ];
 419         int i;
 420         int foundit;
 421         char form_attendees[SIZ];
 422         char organizer_string[SIZ];
 423         int sequence = 0;
 424         enum icalproperty_transp formtransp = ICAL_TRANSP_NONE;
 425
 426         if (supplied_vevent != NULL) {
 427                 vevent = supplied_vevent;
 428                 /* If we're looking at a fully encapsulated VCALENDAR
 429                  * rather than a VTODO component, attempt to use the first
 430                  * relevant VTODO subcomponent.  If there is none, the
 431                  * NULL returned by icalcomponent_get_first_component() will
 432                  * tell the next iteration of this function to create a
 433                  * new one.
 434                  */
 435                 if (icalcomponent_isa(vevent) == ICAL_VCALENDAR_COMPONENT) {
 436                         save_individual_event(
 437                                 icalcomponent_get_first_component(
 438                                         vevent, ICAL_VTODO_COMPONENT
 439                                 ), msgnum
 440                         );
 441                         return;
 442                 }
 443         }
 444         else {
 445                 vevent = icalcomponent_new(ICAL_VEVENT_COMPONENT);
 446                 created_new_vevent = 1;
 447         }
 448
 449         if (!strcasecmp(bstr("sc"), "Save")) {
 450
 451                 /* Replace values in the component with ones from the form */
 452
 453                 while (prop = icalcomponent_get_first_property(vevent,
 454                       ICAL_SUMMARY_PROPERTY), prop != NULL) {
 455                         icalcomponent_remove_property(vevent, prop);
 456                         icalproperty_free(prop);
 457                 }
 458                 icalcomponent_add_property(vevent,
 459                         icalproperty_new_summary(bstr("summary")));
 460
 461                 while (prop = icalcomponent_get_first_property(vevent,
 462                       ICAL_LOCATION_PROPERTY), prop != NULL) {
 463                         icalcomponent_remove_property(vevent, prop);
 464                         icalproperty_free(prop);
 465                 }
 466                 icalcomponent_add_property(vevent,
 467                         icalproperty_new_location(bstr("location")));
 468
 469                 while (prop = icalcomponent_get_first_property(vevent,
 470                       ICAL_DESCRIPTION_PROPERTY), prop != NULL) {
 471                         icalcomponent_remove_property(vevent, prop);
 472                         icalproperty_free(prop);
 473                 }
 474                 icalcomponent_add_property(vevent,
 475                         icalproperty_new_description(bstr("description")));
 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 (!strcmp(bstr("alldayevent"), "yes")) {
 484                         all_day_event = 1;
 485                 }
 486                 else {
 487                         all_day_event = 0;
 488                 }
 489
 490                 event_start = icaltime_from_webform("dtstart");
 491                 if (all_day_event) {
 492                         event_start.is_date = 1;
 493                         event_start.hour = 0;
 494                         event_start.minute = 0;
 495                         event_start.second = 0;
 496                 }
 497
 498
 499                 /* The following odd-looking snippet of code looks like it
 500                  * takes some unnecessary steps.  It is done this way because
 501                  * libical incorrectly turns an "all day event" into a normal
 502                  * event starting at midnight (i.e. it serializes as date/time
 503                  * instead of just date) unless icalvalue_new_date() is used.
 504                  * So we force it, if this is an all day event.
 505                  */
 506                 prop = icalproperty_new_dtstart(event_start);
 507                 if (all_day_event) {
 508                         icalproperty_set_value(prop,
 509                                 icalvalue_new_date(event_start)
 510                         );
 511                 }
 512
 513                 if (prop) icalcomponent_add_property(vevent, prop);
 514                 else icalproperty_free(prop);
 515
 516                 while (prop = icalcomponent_get_first_property(vevent,
 517                       ICAL_DTEND_PROPERTY), prop != NULL) {
 518                         icalcomponent_remove_property(vevent, prop);
 519                         icalproperty_free(prop);
 520                 }
 521                 while (prop = icalcomponent_get_first_property(vevent,
 522                       ICAL_DURATION_PROPERTY), prop != NULL) {
 523                         icalcomponent_remove_property(vevent, prop);
 524                         icalproperty_free(prop);
 525                 }
 526
 527                 if (all_day_event == 0) {
 528                         icalcomponent_add_property(vevent,
 529                                 icalproperty_new_dtend(icaltime_normalize(
 530                                         icaltime_from_webform("dtend"))
 531                                 )
 532                         );
 533                 }
 534
 535                 /* See if transparency is indicated */
 536                 if (strlen(bstr("transp")) > 0) {
 537                         if (!strcasecmp(bstr("transp"), "opaque")) {
 538                                 formtransp = ICAL_TRANSP_OPAQUE;
 539                         }
 540                         else if (!strcasecmp(bstr("transp"), "transparent")) {
 541                                 formtransp = ICAL_TRANSP_TRANSPARENT;
 542                         }
 543
 544                         while (prop = icalcomponent_get_first_property(vevent, ICAL_TRANSP_PROPERTY),
 545                               (prop != NULL)) {
 546                                 icalcomponent_remove_property(vevent, prop);
 547                                 icalproperty_free(prop);
 548                         }
 549
 550                         lprintf(9, "adding new property\n");
 551                         icalcomponent_add_property(vevent, icalproperty_new_transp(formtransp));
 552                 }
 553
 554                 /* Give this event a UID if it doesn't have one. */
 555                 if (icalcomponent_get_first_property(vevent,
 556                    ICAL_UID_PROPERTY) == NULL) {
 557                         generate_new_uid(buf);
 558                         icalcomponent_add_property(vevent,
 559                                 icalproperty_new_uid(buf)
 560                         );
 561                 }
 562
 563                 /* Increment the sequence ID */
 564                 while (prop = icalcomponent_get_first_property(vevent,
 565                       ICAL_SEQUENCE_PROPERTY), (prop != NULL) ) {
 566                         i = icalproperty_get_sequence(prop);
 567                         if (i > sequence) sequence = i;
 568                         icalcomponent_remove_property(vevent, prop);
 569                         icalproperty_free(prop);
 570                 }
 571                 ++sequence;
 572                 icalcomponent_add_property(vevent,
 573                         icalproperty_new_sequence(sequence)
 574                 );
 575
 576                 /* Set the organizer, only if one does not already exist *and*
 577                  * the form is supplying one
 578                  */
 579                 strcpy(buf, bstr("organizer"));
 580                 if ( (icalcomponent_get_first_property(vevent,
 581                    ICAL_ORGANIZER_PROPERTY) == NULL)
 582                    && (strlen(buf) > 0) ) {
 583
 584                         /* set new organizer */
 585                         sprintf(organizer_string, "MAILTO:%s", buf);
 586                         icalcomponent_add_property(vevent,
 587                                 icalproperty_new_organizer(organizer_string)
 588                         );
 589
 590                 }
 591
 592                 /*
 593                  * Add any new attendees listed in the web form
 594                  */
 595
 596                 /* First, strip out the parenthesized partstats.  */
 597                 strcpy(form_attendees, bstr("attendees"));
 598                 stripout(form_attendees, '(', ')');
 599
 600                 /* Now iterate! */
 601                 for (i=0; i<num_tokens(form_attendees, ','); ++i) {
 602                         extract_token(buf, form_attendees, i, ',');
 603                         striplt(buf);
 604                         if (strlen(buf) > 0) {
 605                                 lprintf(9, "Attendee: <%s>\n", buf);
 606                                 sprintf(attendee_string, "MAILTO:%s", buf);
 607                                 foundit = 0;
 608
 609                                 for (attendee = icalcomponent_get_first_property(vevent, ICAL_ATTENDEE_PROPERTY); attendee != NULL; attendee = icalcomponent_get_next_property(vevent, ICAL_ATTENDEE_PROPERTY)) {
 610                                         if (!strcasecmp(attendee_string,
 611                                            icalproperty_get_attendee(attendee)))
 612                                                 ++foundit;
 613                                 }
 614
 615
 616                                 if (foundit == 0) {
 617                                         icalcomponent_add_property(vevent,
 618                                                 icalproperty_new_attendee(attendee_string)
 619                                         );
 620                                 }
 621                         }
 622                 }
 623
 624                 /*
 625                  * Remove any attendees *not* listed in the web form
 626                  */
 627 STARTOVER:
 628                 for (attendee = icalcomponent_get_first_property(vevent, ICAL_ATTENDEE_PROPERTY); attendee != NULL; attendee = icalcomponent_get_next_property(vevent, ICAL_ATTENDEE_PROPERTY)) {
 629                         strcpy(attendee_string, icalproperty_get_attendee(attendee));
 630                         if (!strncasecmp(attendee_string, "MAILTO:", 7)) {
 631                                 strcpy(attendee_string, &attendee_string[7]);
 632                                 striplt(attendee_string);
 633                                 foundit = 0;
 634                                 for (i=0; i<num_tokens(form_attendees, ','); ++i) {
 635                                         extract_token(buf, form_attendees, i, ',');
 636                                         striplt(buf);
 637                                         if (!strcasecmp(buf, attendee_string)) ++foundit;
 638                                 }
 639                                 if (foundit == 0) {
 640                                         icalcomponent_remove_property(vevent, attendee);
 641                                         icalproperty_free(attendee);
 642                                         goto STARTOVER;
 643                                 }
 644                         }
 645                 }
 646
 647                 /*
 648                  * Serialize it and save it to the message base
 649                  */
 650                 serv_puts("ENT0 1|||4");
 651                 serv_gets(buf);
 652                 if (buf[0] == '4') {
 653                         serv_puts("Content-type: text/calendar");
 654                         serv_puts("");
 655                         serv_puts(icalcomponent_as_ical_string(vevent));
 656                         serv_puts("000");
 657                 }
 658         }
 659
 660         /*
 661          * If the user clicked 'Delete' then delete it.
 662          */
 663         if ( (!strcasecmp(bstr("sc"), "Delete")) && (msgnum > 0L) ) {
 664                 serv_printf("DELE %ld", atol(bstr("msgnum")));
 665                 serv_gets(buf);
 666         }
 667
 668         if (created_new_vevent) {
 669                 icalcomponent_free(vevent);
 670         }
 671
 672         /* Go back to the event list */
 673         readloop("readfwd");
 674 }
 675
 676
 677 #endif /* WEBCIT_WITH_CALENDAR_SERVICE */