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                 "<SPAN CLASS=\"titlebar\">Edit event</SPAN>"
  93                 "</TD></TR></TABLE><BR>\n"
  94         );
  95
  96         /************************************************************
  97          * Uncomment this to see the UID in calendar events for debugging
  98         wprintf("UID == ");
  99         p = icalcomponent_get_first_property(vevent, ICAL_UID_PROPERTY);
 100         if (p != NULL) {
 101                 escputs((char *)icalproperty_get_comment(p));
 102         }
 103         wprintf("<BR>\n");
 104         wprintf("SEQUENCE == %d<BR>\n", sequence);
 105         *************************************************************/
 106
 107         wprintf("<FORM NAME=\"EventForm\" METHOD=\"POST\" ACTION=\"/save_event\">\n");
 108
 109         wprintf("<INPUT TYPE=\"hidden\" NAME=\"msgnum\" VALUE=\"%ld\">\n",
 110                 msgnum);
 111         wprintf("<INPUT TYPE=\"hidden\" NAME=\"calview\" VALUE=\"%s\">\n",
 112                 bstr("calview"));
 113         wprintf("<INPUT TYPE=\"hidden\" NAME=\"year\" VALUE=\"%s\">\n",
 114                 bstr("year"));
 115         wprintf("<INPUT TYPE=\"hidden\" NAME=\"month\" VALUE=\"%s\">\n",
 116                 bstr("month"));
 117         wprintf("<INPUT TYPE=\"hidden\" NAME=\"day\" VALUE=\"%s\">\n",
 118                 bstr("day"));
 119
 120         /* Put it in a borderless table so it lines up nicely */
 121         wprintf("<TABLE border=0 width=100%%>\n");
 122
 123         wprintf("<TR><TD><B>Summary</B></TD><TD>\n"
 124                 "<INPUT TYPE=\"text\" NAME=\"summary\" "
 125                 "MAXLENGTH=\"64\" SIZE=\"64\" VALUE=\"");
 126         p = icalcomponent_get_first_property(vevent, ICAL_SUMMARY_PROPERTY);
 127         if (p != NULL) {
 128                 escputs((char *)icalproperty_get_comment(p));
 129         }
 130         wprintf("\"></TD></TR>\n");
 131
 132         wprintf("<TR><TD><B>Location</B></TD><TD>\n"
 133                 "<INPUT TYPE=\"text\" NAME=\"location\" "
 134                 "MAXLENGTH=\"64\" SIZE=\"64\" VALUE=\"");
 135         p = icalcomponent_get_first_property(vevent, ICAL_LOCATION_PROPERTY);
 136         if (p != NULL) {
 137                 escputs((char *)icalproperty_get_comment(p));
 138         }
 139         wprintf("\"></TD></TR>\n");
 140
 141         wprintf("<TR><TD><B>Start</B></TD><TD>\n");
 142         p = icalcomponent_get_first_property(vevent, ICAL_DTSTART_PROPERTY);
 143         if (p != NULL) {
 144                 t_start = icalproperty_get_dtstart(p);
 145                 if (t_start.is_date) {
 146                         t_start.hour = 0;
 147                         t_start.minute = 0;
 148                         t_start.second = 0;
 149                 }
 150         }
 151         else {
 152                 memcpy(&tm_now, localtime(&now), sizeof(struct tm));
 153                 tm_now.tm_year = atoi(bstr("year")) - 1900;
 154                 tm_now.tm_mon = atoi(bstr("month")) - 1;
 155                 tm_now.tm_mday = atoi(bstr("day"));
 156                 if (strlen(bstr("hour")) > 0) {
 157                         tm_now.tm_hour = atoi(bstr("hour"));
 158                         tm_now.tm_min = atoi(bstr("minute"));
 159                         tm_now.tm_sec = 0;
 160                 }
 161                 else {
 162                         tm_now.tm_hour = 9;
 163                         tm_now.tm_min = 0;
 164                         tm_now.tm_sec = 0;
 165                 }
 166
 167                 t_start = icaltime_from_timet_with_zone(
 168                         mktime(&tm_now),
 169                         ((!strcasecmp(bstr("alldayevent"), "yes")) ? 1 : 0),
 170                         icaltimezone_get_utc_timezone
 171                 );
 172                 t_start.is_utc = 1;
 173
 174         }
 175         display_icaltimetype_as_webform(&t_start, "dtstart");
 176
 177         wprintf("<INPUT TYPE=\"checkbox\" NAME=\"alldayevent\" "
 178                 "VALUE=\"yes\" onClick=\"
 179
 180                         if (this.checked) {
 181                                 this.form.dtstart_hour.value='0';
 182                                 this.form.dtstart_hour.disabled = true;
 183                                 this.form.dtstart_minute.value='0';
 184                                 this.form.dtstart_minute.disabled = true;
 185                                 this.form.dtend_hour.value='0';
 186                                 this.form.dtend_hour.disabled = true;
 187                                 this.form.dtend_minute.value='0';
 188                                 this.form.dtend_minute.disabled = true;
 189                                 this.form.dtend_month.disabled = true;
 190                                 this.form.dtend_day.disabled = true;
 191                                 this.form.dtend_year.disabled = true;
 192                         }
 193                         else {
 194                                 this.form.dtstart_hour.disabled = false;
 195                                 this.form.dtstart_minute.disabled = false;
 196                                 this.form.dtend_hour.disabled = false;
 197                                 this.form.dtend_minute.disabled = false;
 198                                 this.form.dtend_month.disabled = false;
 199                                 this.form.dtend_day.disabled = false;
 200                                 this.form.dtend_year.disabled = false;
 201                         }
 202
 203
 204                 \" %s >All day event",
 205                 (t_start.is_date ? "CHECKED" : "" )
 206         );
 207
 208         wprintf("</TD></TR>\n");
 209
 210         /* If this is an all-day-event, set the end time to be identical to
 211          * the start time (the hour/minute/second will be set to midnight).
 212          * Otherwise extract or create it.
 213          */
 214         wprintf("<TR><TD><B>End</B></TD><TD>\n");
 215         if (t_start.is_date) {
 216                 t_end = t_start;
 217         }
 218         else {
 219                 p = icalcomponent_get_first_property(vevent,
 220                                                         ICAL_DTEND_PROPERTY);
 221                 if (p != NULL) {
 222                         t_end = icalproperty_get_dtend(p);
 223                 }
 224                 else {
 225                         /* If this is not an all-day event and there is no
 226                          * end time specified, make the default one hour
 227                          * from the start time.
 228                          */
 229                         t_end = t_start;
 230                         t_end.hour += 1;
 231                         t_end.second = 0;
 232                         t_end = icaltime_normalize(t_end);
 233                         /* t_end = icaltime_from_timet(now, 0); */
 234                 }
 235         }
 236         display_icaltimetype_as_webform(&t_end, "dtend");
 237         wprintf("</TD></TR>\n");
 238
 239         wprintf("<TR><TD><B>Notes</B></TD><TD>\n"
 240                 "<TEXTAREA NAME=\"description\" wrap=soft "
 241                 "ROWS=10 COLS=80 WIDTH=80>\n"
 242         );
 243         p = icalcomponent_get_first_property(vevent, ICAL_DESCRIPTION_PROPERTY);
 244         if (p != NULL) {
 245                 escputs((char *)icalproperty_get_comment(p));
 246         }
 247         wprintf("</TEXTAREA></TD></TR>");
 248
 249         /* For a new event, the user creating the event should be the
 250          * organizer.  Set this field accordingly.
 251          */
 252         if (icalcomponent_get_first_property(vevent, ICAL_ORGANIZER_PROPERTY)
 253            == NULL) {
 254                 sprintf(organizer_string, "MAILTO:%s", WC->cs_inet_email);
 255                 icalcomponent_add_property(vevent,
 256                         icalproperty_new_organizer(organizer_string)
 257                 );
 258         }
 259
 260         /* Determine who is the organizer of this event.
 261          * We need to determine "me" or "not me."
 262          */
 263         organizer = icalcomponent_get_first_property(vevent,
 264                                                 ICAL_ORGANIZER_PROPERTY);
 265         if (organizer != NULL) {
 266                 strcpy(organizer_string, icalproperty_get_organizer(organizer));
 267                 if (!strncasecmp(organizer_string, "MAILTO:", 7)) {
 268                         strcpy(organizer_string, &organizer_string[7]);
 269                         striplt(organizer_string);
 270                         lprintf(9, "ISME %s\n", organizer_string);
 271                         serv_printf("ISME %s", organizer_string);
 272                         serv_gets(buf);
 273                         lprintf(9, "%s\n", buf);
 274                         if (buf[0] == '2') {
 275                                 organizer_is_me = 1;
 276                         }
 277                 }
 278         }
 279
 280         wprintf("<TR><TD><B>Organizer</B></TD><TD>");
 281         escputs(organizer_string);
 282         if (organizer_is_me) {
 283                 wprintf(" <FONT SIZE=-1><I>"
 284                         "(you are the organizer)</I></FONT>\n");
 285         }
 286
 287         /*
 288          * Transmit the organizer as a hidden field.   We don't want the user
 289          * to be able to change it, but we do want it fed back to the server,
 290          * especially if this is a new event and there is no organizer already
 291          * in the calendar object.
 292          */
 293         wprintf("<INPUT TYPE=\"hidden\" NAME=\"organizer\" VALUE=\"");
 294         escputs(organizer_string);
 295         wprintf("\">");
 296
 297         wprintf("</TD></TR>\n");
 298
 299         /* Transparency */
 300         wprintf("<TR><TD><B>Show time as:</B></TD><TD>");
 301
 302         p = icalcomponent_get_first_property(vevent, ICAL_TRANSP_PROPERTY);
 303         if (p == NULL) {
 304                 /* No transparency found.  Default to opaque (busy). */
 305                 p = icalproperty_new_transp(ICAL_TRANSP_OPAQUE);
 306                 if (p != NULL) {
 307                         icalcomponent_add_property(vevent, p);
 308                 }
 309         }
 310         if (p != NULL) {
 311                 v = icalproperty_get_value(p);
 312         }
 313         else {
 314                 v = NULL;
 315         }
 316
 317         wprintf("<INPUT TYPE=\"radio\" NAME=\"transp\" VALUE=\"transparent\"");
 318         if (v != NULL) if (icalvalue_get_transp(v) == ICAL_TRANSP_TRANSPARENT)
 319                 wprintf(" CHECKED");
 320         wprintf(">Free&nbsp;&nbsp;");
 321
 322         wprintf("<INPUT TYPE=\"radio\" NAME=\"transp\" VALUE=\"opaque\"");
 323         if (v != NULL) if (icalvalue_get_transp(v) == ICAL_TRANSP_OPAQUE)
 324                 wprintf(" CHECKED");
 325         wprintf(">Busy");
 326
 327         wprintf("</TD></TR>\n");
 328
 329         /* Attendees */
 330         wprintf("<TR><TD><B>Attendees</B><BR>"
 331                 "<FONT SIZE=-2>(Separate multiple attendees with commas)"
 332                 "</FONT></TD><TD>"
 333                 "<TEXTAREA %s NAME=\"attendees\" wrap=soft "
 334                 "ROWS=3 COLS=80 WIDTH=80>\n",
 335                 (organizer_is_me ? "" : "DISABLED ")
 336         );
 337         i = 0;
 338         for (attendee = icalcomponent_get_first_property(vevent, ICAL_ATTENDEE_PROPERTY); attendee != NULL; attendee = icalcomponent_get_next_property(vevent, ICAL_ATTENDEE_PROPERTY)) {
 339                 strcpy(attendee_string, icalproperty_get_attendee(attendee));
 340                 if (!strncasecmp(attendee_string, "MAILTO:", 7)) {
 341
 342                         /* screen name or email address */
 343                         strcpy(attendee_string, &attendee_string[7]);
 344                         striplt(attendee_string);
 345                         if (i++) wprintf(", ");
 346                         escputs(attendee_string);
 347                         wprintf(" ");
 348
 349                         /* participant status */
 350                         partstat_as_string(buf, attendee);
 351                         escputs(buf);
 352                 }
 353         }
 354         wprintf("</TEXTAREA></TD></TR>\n");
 355
 356         /* Done with properties. */
 357         wprintf("</TABLE>\n<CENTER>"
 358                 "<INPUT TYPE=\"submit\" NAME=\"sc\" VALUE=\"Save\">"
 359                 "&nbsp;&nbsp;"
 360                 "<INPUT TYPE=\"submit\" NAME=\"sc\" VALUE=\"Delete\">\n"
 361                 "&nbsp;&nbsp;"
 362                 "<INPUT TYPE=\"submit\" NAME=\"sc\" VALUE=\"Cancel\">\n"
 363                 "</CENTER>\n"
 364         );
 365
 366         wprintf("</FORM>\n");
 367
 368         wprintf("<SCRIPT language=\"javascript\">
 369                 <!--
 370
 371                         if (document.EventForm.alldayevent.checked) {
 372                                 document.EventForm.dtstart_hour.value='0';
 373                                 document.EventForm.dtstart_hour.disabled = true;
 374                                 document.EventForm.dtstart_minute.value='0';
 375                                 document.EventForm.dtstart_minute.disabled = true;
 376                                 document.EventForm.dtend_hour.value='0';
 377                                 document.EventForm.dtend_hour.disabled = true;
 378                                 document.EventForm.dtend_minute.value='0';
 379                                 document.EventForm.dtend_minute.disabled = true;
 380                                 document.EventForm.dtend_month.disabled = true;
 381                                 document.EventForm.dtend_day.disabled = true;
 382                                 document.EventForm.dtend_year.disabled = true;
 383                         }
 384                         else {
 385                                 document.EventForm.dtstart_hour.disabled = false;
 386                                 document.EventForm.dtstart_minute.disabled = false;
 387                                 document.EventForm.dtend_hour.disabled = false;
 388                                 document.EventForm.dtend_minute.disabled = false;
 389                                 document.EventForm.dtend_month.disabled = false;
 390                                 document.EventForm.dtend_day.disabled = false;
 391                                 document.EventForm.dtend_year.disabled = false;
 392                         }
 393                 //-->
 394                 </SCRIPT>
 395         ");
 396
 397         wDumpContent(1);
 398
 399         if (created_new_vevent) {
 400                 icalcomponent_free(vevent);
 401         }
 402 }
 403
 404 /*
 405  * Save an edited event
 406  *
 407  */
 408 void save_individual_event(icalcomponent *supplied_vevent, long msgnum) {
 409         char buf[SIZ];
 410         icalproperty *prop;
 411         icalcomponent *vevent, *encaps;
 412         int created_new_vevent = 0;
 413         int all_day_event = 0;
 414         struct icaltimetype event_start;
 415         icalproperty *attendee = NULL;
 416         char attendee_string[SIZ];
 417         int i;
 418         int foundit;
 419         char form_attendees[SIZ];
 420         char organizer_string[SIZ];
 421         int sequence = 0;
 422         enum icalproperty_transp formtransp = ICAL_TRANSP_NONE;
 423
 424         if (supplied_vevent != NULL) {
 425                 vevent = supplied_vevent;
 426                 /* If we're looking at a fully encapsulated VCALENDAR
 427                  * rather than a VTODO component, attempt to use the first
 428                  * relevant VTODO subcomponent.  If there is none, the
 429                  * NULL returned by icalcomponent_get_first_component() will
 430                  * tell the next iteration of this function to create a
 431                  * new one.
 432                  */
 433                 if (icalcomponent_isa(vevent) == ICAL_VCALENDAR_COMPONENT) {
 434                         save_individual_event(
 435                                 icalcomponent_get_first_component(
 436                                         vevent, ICAL_VTODO_COMPONENT
 437                                 ), msgnum
 438                         );
 439                         return;
 440                 }
 441         }
 442         else {
 443                 vevent = icalcomponent_new(ICAL_VEVENT_COMPONENT);
 444                 created_new_vevent = 1;
 445         }
 446
 447         if (!strcasecmp(bstr("sc"), "Save")) {
 448
 449                 /* Replace values in the component with ones from the form */
 450
 451                 while (prop = icalcomponent_get_first_property(vevent,
 452                       ICAL_SUMMARY_PROPERTY), prop != NULL) {
 453                         icalcomponent_remove_property(vevent, prop);
 454                         icalproperty_free(prop);
 455                 }
 456                 icalcomponent_add_property(vevent,
 457                         icalproperty_new_summary(bstr("summary")));
 458
 459                 while (prop = icalcomponent_get_first_property(vevent,
 460                       ICAL_LOCATION_PROPERTY), prop != NULL) {
 461                         icalcomponent_remove_property(vevent, prop);
 462                         icalproperty_free(prop);
 463                 }
 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                 icalcomponent_add_property(vevent,
 473                         icalproperty_new_description(bstr("description")));
 474
 475                 while (prop = icalcomponent_get_first_property(vevent,
 476                       ICAL_DTSTART_PROPERTY), prop != NULL) {
 477                         icalcomponent_remove_property(vevent, prop);
 478                         icalproperty_free(prop);
 479                 }
 480
 481                 if (!strcmp(bstr("alldayevent"), "yes")) {
 482                         all_day_event = 1;
 483                 }
 484                 else {
 485                         all_day_event = 0;
 486                 }
 487
 488                 event_start = icaltime_from_webform("dtstart");
 489                 if (all_day_event) {
 490                         event_start.is_date = 1;
 491                         event_start.hour = 0;
 492                         event_start.minute = 0;
 493                         event_start.second = 0;
 494                 }
 495
 496
 497                 /* The following odd-looking snippet of code looks like it
 498                  * takes some unnecessary steps.  It is done this way because
 499                  * libical incorrectly turns an "all day event" into a normal
 500                  * event starting at midnight (i.e. it serializes as date/time
 501                  * instead of just date) unless icalvalue_new_date() is used.
 502                  * So we force it, if this is an all day event.
 503                  */
 504                 prop = icalproperty_new_dtstart(event_start);
 505                 if (all_day_event) {
 506                         icalproperty_set_value(prop,
 507                                 icalvalue_new_date(event_start)
 508                         );
 509                 }
 510
 511                 if (prop) icalcomponent_add_property(vevent, prop);
 512                 else icalproperty_free(prop);
 513
 514                 while (prop = icalcomponent_get_first_property(vevent,
 515                       ICAL_DTEND_PROPERTY), prop != NULL) {
 516                         icalcomponent_remove_property(vevent, prop);
 517                         icalproperty_free(prop);
 518                 }
 519                 while (prop = icalcomponent_get_first_property(vevent,
 520                       ICAL_DURATION_PROPERTY), prop != NULL) {
 521                         icalcomponent_remove_property(vevent, prop);
 522                         icalproperty_free(prop);
 523                 }
 524
 525                 if (all_day_event == 0) {
 526                         icalcomponent_add_property(vevent,
 527                                 icalproperty_new_dtend(icaltime_normalize(
 528                                         icaltime_from_webform("dtend"))
 529                                 )
 530                         );
 531                 }
 532
 533                 /* See if transparency is indicated */
 534                 if (strlen(bstr("transp")) > 0) {
 535                         if (!strcasecmp(bstr("transp"), "opaque")) {
 536                                 formtransp = ICAL_TRANSP_OPAQUE;
 537                         }
 538                         else if (!strcasecmp(bstr("transp"), "transparent")) {
 539                                 formtransp = ICAL_TRANSP_TRANSPARENT;
 540                         }
 541
 542                         while (prop = icalcomponent_get_first_property(vevent, ICAL_TRANSP_PROPERTY),
 543                               (prop != NULL)) {
 544                                 icalcomponent_remove_property(vevent, prop);
 545                                 icalproperty_free(prop);
 546                         }
 547
 548                         lprintf(9, "adding new property...\n");
 549                         icalcomponent_add_property(vevent, icalproperty_new_transp(formtransp));
 550                         lprintf(9, "...added it.\n");
 551                 }
 552
 553                 /* Give this event a UID if it doesn't have one. */
 554                 lprintf(9, "Give this event a UID if it doesn't have one.\n");
 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                 lprintf(9, "Increment the sequence ID\n");
 565                 while (prop = icalcomponent_get_first_property(vevent,
 566                       ICAL_SEQUENCE_PROPERTY), (prop != NULL) ) {
 567                         i = icalproperty_get_sequence(prop);
 568                         lprintf(9, "Sequence was %d\n", i);
 569                         if (i > sequence) sequence = i;
 570                         icalcomponent_remove_property(vevent, prop);
 571                         icalproperty_free(prop);
 572                 }
 573                 ++sequence;
 574                 lprintf(9, "New sequence is %d.  Adding...\n", sequence);
 575                 icalcomponent_add_property(vevent,
 576                         icalproperty_new_sequence(sequence)
 577                 );
 578
 579                 /* Set the organizer, only if one does not already exist *and*
 580                  * the form is supplying one
 581                  */
 582                 lprintf(9, "Setting the organizer...\n");
 583                 strcpy(buf, bstr("organizer"));
 584                 if ( (icalcomponent_get_first_property(vevent,
 585                    ICAL_ORGANIZER_PROPERTY) == NULL)
 586                    && (strlen(buf) > 0) ) {
 587
 588                         /* set new organizer */
 589                         sprintf(organizer_string, "MAILTO:%s", buf);
 590                         icalcomponent_add_property(vevent,
 591                                 icalproperty_new_organizer(organizer_string)
 592                         );
 593
 594                 }
 595
 596                 /*
 597                  * Add any new attendees listed in the web form
 598                  */
 599                 lprintf(9, "Add any new attendees\n");
 600
 601                 /* First, strip out the parenthesized partstats.  */
 602                 strcpy(form_attendees, bstr("attendees"));
 603                 stripout(form_attendees, '(', ')');
 604
 605                 /* Now iterate! */
 606                 for (i=0; i<num_tokens(form_attendees, ','); ++i) {
 607                         extract_token(buf, form_attendees, i, ',');
 608                         striplt(buf);
 609                         if (strlen(buf) > 0) {
 610                                 lprintf(9, "Attendee: <%s>\n", 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:      lprintf(9, "Remove unlisted attendees\n");
 633                 for (attendee = icalcomponent_get_first_property(vevent, ICAL_ATTENDEE_PROPERTY); attendee != NULL; attendee = icalcomponent_get_next_property(vevent, ICAL_ATTENDEE_PROPERTY)) {
 634                         strcpy(attendee_string, icalproperty_get_attendee(attendee));
 635                         if (!strncasecmp(attendee_string, "MAILTO:", 7)) {
 636                                 strcpy(attendee_string, &attendee_string[7]);
 637                                 striplt(attendee_string);
 638                                 foundit = 0;
 639                                 for (i=0; i<num_tokens(form_attendees, ','); ++i) {
 640                                         extract_token(buf, form_attendees, i, ',');
 641                                         striplt(buf);
 642                                         if (!strcasecmp(buf, attendee_string)) ++foundit;
 643                                 }
 644                                 if (foundit == 0) {
 645                                         icalcomponent_remove_property(vevent, attendee);
 646                                         icalproperty_free(attendee);
 647                                         goto STARTOVER;
 648                                 }
 649                         }
 650                 }
 651
 652                 /*
 653                  * Serialize it and save it to the message base.  We clone it first,
 654                  * for two reasons: one, it's easier to just free the whole thing
 655                  * when we're done instead of unbundling, but more importantly, we
 656                  * can't encapsulate something that may already be encapsulated
 657                  * somewhere else.
 658                  */
 659                 lprintf(9, "Encapsulating into full VCALENDAR component\n");
 660                 encaps = ical_encapsulate_subcomponent(icalcomponent_new_clone(vevent));
 661                 lprintf(9, "Serializing it for saving\n");
 662                 if (encaps != NULL) {
 663                         serv_puts("ENT0 1|||4");
 664                         serv_gets(buf);
 665                         if (buf[0] == '4') {
 666                                 serv_puts("Content-type: text/calendar");
 667                                 serv_puts("");
 668                                 serv_puts(icalcomponent_as_ical_string(encaps));
 669                                 serv_puts("000");
 670                         }
 671                         icalcomponent_free(encaps);
 672                 }
 673         }
 674
 675         /*
 676          * If the user clicked 'Delete' then delete it.
 677          */
 678         lprintf(9, "Checking to see if we have to delete an old event\n");
 679         if ( (!strcasecmp(bstr("sc"), "Delete")) && (msgnum > 0L) ) {
 680                 serv_printf("DELE %ld", atol(bstr("msgnum")));
 681                 serv_gets(buf);
 682         }
 683
 684         if (created_new_vevent) {
 685                 icalcomponent_free(vevent);
 686         }
 687
 688         /* Go back to the event list */
 689         readloop("readfwd");
 690 }
 691
 692
 693 #endif /* WEBCIT_WITH_CALENDAR_SERVICE */