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 void display_edit_individual_event(icalcomponent *supplied_vevent, long msgnum) {
  37         icalcomponent *vevent;
  38         icalproperty *p;
  39         icalvalue *v;
  40         struct icaltimetype t_start, t_end;
  41         time_t now;
  42         struct tm tm_now;
  43         int created_new_vevent = 0;
  44         icalproperty *organizer = NULL;
  45         char organizer_string[SIZ];
  46         icalproperty *attendee = NULL;
  47         char attendee_string[SIZ];
  48         char buf[SIZ];
  49         int organizer_is_me = 0;
  50         int i;
  51         int sequence = 0;
  52
  53         now = time(NULL);
  54         strcpy(organizer_string, "");
  55         strcpy(attendee_string, "");
  56
  57         if (supplied_vevent != NULL) {
  58                 vevent = supplied_vevent;
  59                 /* If we're looking at a fully encapsulated VCALENDAR
  60                  * rather than a VEVENT component, attempt to use the first
  61                  * relevant VEVENT subcomponent.  If there is none, the
  62                  * NULL returned by icalcomponent_get_first_component() will
  63                  * tell the next iteration of this function to create a
  64                  * new one.
  65                  */
  66                 if (icalcomponent_isa(vevent) == ICAL_VCALENDAR_COMPONENT) {
  67                         display_edit_individual_event(
  68                                 icalcomponent_get_first_component(
  69                                         vevent, ICAL_VEVENT_COMPONENT
  70                                 ), msgnum
  71                         );
  72                         return;
  73                 }
  74         }
  75         else {
  76                 vevent = icalcomponent_new(ICAL_VEVENT_COMPONENT);
  77                 created_new_vevent = 1;
  78         }
  79
  80         /* Learn the sequence */
  81         p = icalcomponent_get_first_property(vevent, ICAL_SEQUENCE_PROPERTY);
  82         if (p != NULL) {
  83                 sequence = icalproperty_get_sequence(p);
  84         }
  85
  86         /* Begin output */
  87         output_headers(1, 1, 0, 0, 0, 0, 0);
  88         do_template("beginbox_nt");
  89         wprintf("<h3>&nbsp;<IMG ALIGN=CENTER SRC=\"/static/vcalendar.gif\">"
  90                 "&nbsp;Add or edit an event</h3>\n");
  91
  92         /************************************************************
  93          * Uncomment this to see the UID in calendar events for debugging
  94         wprintf("UID == ");
  95         p = icalcomponent_get_first_property(vevent, ICAL_UID_PROPERTY);
  96         if (p != NULL) {
  97                 escputs((char *)icalproperty_get_comment(p));
  98         }
  99         wprintf("<br />\n");
 100         wprintf("SEQUENCE == %d<br />\n", sequence);
 101         *************************************************************/
 102
 103         wprintf("<FORM NAME=\"EventForm\" METHOD=\"POST\" ACTION=\"/save_event\">\n");
 104
 105         wprintf("<INPUT TYPE=\"hidden\" NAME=\"msgnum\" VALUE=\"%ld\">\n",
 106                 msgnum);
 107         wprintf("<INPUT TYPE=\"hidden\" NAME=\"calview\" VALUE=\"%s\">\n",
 108                 bstr("calview"));
 109         wprintf("<INPUT TYPE=\"hidden\" NAME=\"year\" VALUE=\"%s\">\n",
 110                 bstr("year"));
 111         wprintf("<INPUT TYPE=\"hidden\" NAME=\"month\" VALUE=\"%s\">\n",
 112                 bstr("month"));
 113         wprintf("<INPUT TYPE=\"hidden\" NAME=\"day\" VALUE=\"%s\">\n",
 114                 bstr("day"));
 115
 116         /* Put it in a borderless table so it lines up nicely */
 117         wprintf("<TABLE border=0 width=100%%>\n");
 118
 119         wprintf("<TR><TD><B>Summary</B></TD><TD>\n"
 120                 "<INPUT TYPE=\"text\" NAME=\"summary\" "
 121                 "MAXLENGTH=\"64\" SIZE=\"64\" VALUE=\"");
 122         p = icalcomponent_get_first_property(vevent, ICAL_SUMMARY_PROPERTY);
 123         if (p != NULL) {
 124                 escputs((char *)icalproperty_get_comment(p));
 125         }
 126         wprintf("\"></TD></TR>\n");
 127
 128         wprintf("<TR><TD><B>Location</B></TD><TD>\n"
 129                 "<INPUT TYPE=\"text\" NAME=\"location\" "
 130                 "MAXLENGTH=\"64\" SIZE=\"64\" VALUE=\"");
 131         p = icalcomponent_get_first_property(vevent, ICAL_LOCATION_PROPERTY);
 132         if (p != NULL) {
 133                 escputs((char *)icalproperty_get_comment(p));
 134         }
 135         wprintf("\"></TD></TR>\n");
 136
 137         wprintf("<TR><TD><B>Start</B></TD><TD>\n");
 138         p = icalcomponent_get_first_property(vevent, ICAL_DTSTART_PROPERTY);
 139         if (p != NULL) {
 140                 t_start = icalproperty_get_dtstart(p);
 141                 if (t_start.is_date) {
 142                         t_start.hour = 0;
 143                         t_start.minute = 0;
 144                         t_start.second = 0;
 145                 }
 146         }
 147         else {
 148                 localtime_r(&now, &tm_now);
 149                 lprintf(9, "NOW NOW NOW!!!! %ld\n", now);
 150                 if (strlen(bstr("year")) > 0) {
 151                         tm_now.tm_year = atoi(bstr("year")) - 1900;
 152                         tm_now.tm_mon = atoi(bstr("month")) - 1;
 153                         tm_now.tm_mday = atoi(bstr("day"));
 154                 }
 155                 if (strlen(bstr("hour")) > 0) {
 156                         tm_now.tm_hour = atoi(bstr("hour"));
 157                         tm_now.tm_min = atoi(bstr("minute"));
 158                         tm_now.tm_sec = 0;
 159                 }
 160                 else {
 161                         tm_now.tm_hour = 9;
 162                         tm_now.tm_min = 0;
 163                         tm_now.tm_sec = 0;
 164                 }
 165
 166                 t_start = icaltime_from_timet_with_zone(
 167                         mktime(&tm_now),
 168                         ((!strcasecmp(bstr("alldayevent"), "yes")) ? 1 : 0),
 169                         icaltimezone_get_utc_timezone()
 170                 );
 171                 t_start.is_utc = 1;
 172
 173         }
 174         display_icaltimetype_as_webform(&t_start, "dtstart");
 175
 176         wprintf("<INPUT TYPE=\"checkbox\" NAME=\"alldayevent\" "
 177                 "VALUE=\"yes\" onClick=\""
 178 ""
 179 "                       if (this.checked) { "
 180 "                               this.form.dtstart_hour.value='0'; "
 181 "                               this.form.dtstart_hour.disabled = true; "
 182 "                               this.form.dtstart_minute.value='0'; "
 183 "                               this.form.dtstart_minute.disabled = true; "
 184 "                               this.form.dtend_hour.value='0'; "
 185 "                               this.form.dtend_hour.disabled = true; "
 186 "                               this.form.dtend_minute.value='0'; "
 187 "                               this.form.dtend_minute.disabled = true; "
 188 "                               this.form.dtend_month.disabled = true; "
 189 "                               this.form.dtend_day.disabled = true; "
 190 "                               this.form.dtend_year.disabled = true; "
 191 "                       } "
 192 "                       else { "
 193 "                               this.form.dtstart_hour.disabled = false; "
 194 "                               this.form.dtstart_minute.disabled = false; "
 195 "                               this.form.dtend_hour.disabled = false; "
 196 "                               this.form.dtend_minute.disabled = false; "
 197 "                               this.form.dtend_month.disabled = false; "
 198 "                               this.form.dtend_day.disabled = false; "
 199 "                               this.form.dtend_year.disabled = false; "
 200 "                       } "
 201 " "
 202 " "
 203 "               \" %s >All day event",
 204                 (t_start.is_date ? "CHECKED" : "" )
 205         );
 206
 207         wprintf("</TD></TR>\n");
 208
 209         /* If this is an all-day-event, set the end time to be identical to
 210          * the start time (the hour/minute/second will be set to midnight).
 211          * Otherwise extract or create it.
 212          */
 213         wprintf("<TR><TD><B>End</B></TD><TD>\n");
 214         if (t_start.is_date) {
 215                 t_end = t_start;
 216         }
 217         else {
 218                 p = icalcomponent_get_first_property(vevent,
 219                                                         ICAL_DTEND_PROPERTY);
 220                 if (p != NULL) {
 221                         t_end = icalproperty_get_dtend(p);
 222                 }
 223                 else {
 224                         /* If this is not an all-day event and there is no
 225                          * end time specified, make the default one hour
 226                          * from the start time.
 227                          */
 228                         t_end = t_start;
 229                         t_end.hour += 1;
 230                         t_end.second = 0;
 231                         t_end = icaltime_normalize(t_end);
 232                         /* t_end = icaltime_from_timet(now, 0); */
 233                 }
 234         }
 235         display_icaltimetype_as_webform(&t_end, "dtend");
 236         wprintf("</TD></TR>\n");
 237
 238         wprintf("<TR><TD><B>Notes</B></TD><TD>\n"
 239                 "<TEXTAREA NAME=\"description\" wrap=soft "
 240                 "ROWS=5 COLS=80 WIDTH=80>\n"
 241         );
 242         p = icalcomponent_get_first_property(vevent, ICAL_DESCRIPTION_PROPERTY);
 243         if (p != NULL) {
 244                 escputs((char *)icalproperty_get_comment(p));
 245         }
 246         wprintf("</TEXTAREA></TD></TR>");
 247
 248         /* For a new event, the user creating the event should be the
 249          * organizer.  Set this field accordingly.
 250          */
 251         if (icalcomponent_get_first_property(vevent, ICAL_ORGANIZER_PROPERTY)
 252            == NULL) {
 253                 sprintf(organizer_string, "MAILTO:%s", WC->cs_inet_email);
 254                 icalcomponent_add_property(vevent,
 255                         icalproperty_new_organizer(organizer_string)
 256                 );
 257         }
 258
 259         /* Determine who is the organizer of this event.
 260          * We need to determine "me" or "not me."
 261          */
 262         organizer = icalcomponent_get_first_property(vevent,
 263                                                 ICAL_ORGANIZER_PROPERTY);
 264         if (organizer != NULL) {
 265                 strcpy(organizer_string, icalproperty_get_organizer(organizer));
 266                 if (!strncasecmp(organizer_string, "MAILTO:", 7)) {
 267                         strcpy(organizer_string, &organizer_string[7]);
 268                         striplt(organizer_string);
 269                         lprintf(9, "ISME %s\n", organizer_string);
 270                         serv_printf("ISME %s", organizer_string);
 271                         serv_gets(buf);
 272                         lprintf(9, "%s\n", buf);
 273                         if (buf[0] == '2') {
 274                                 organizer_is_me = 1;
 275                         }
 276                 }
 277         }
 278
 279         wprintf("<TR><TD><B>Organizer</B></TD><TD>");
 280         escputs(organizer_string);
 281         if (organizer_is_me) {
 282                 wprintf(" <FONT SIZE=-1><I>"
 283                         "(you are the organizer)</I></FONT>\n");
 284         }
 285
 286         /*
 287          * Transmit the organizer as a hidden field.   We don't want the user
 288          * to be able to change it, but we do want it fed back to the server,
 289          * especially if this is a new event and there is no organizer already
 290          * in the calendar object.
 291          */
 292         wprintf("<INPUT TYPE=\"hidden\" NAME=\"organizer\" VALUE=\"");
 293         escputs(organizer_string);
 294         wprintf("\">");
 295
 296         wprintf("</TD></TR>\n");
 297
 298         /* Transparency */
 299         wprintf("<TR><TD><B>Show time as:</B></TD><TD>");
 300
 301         p = icalcomponent_get_first_property(vevent, ICAL_TRANSP_PROPERTY);
 302         if (p == NULL) {
 303                 /* No transparency found.  Default to opaque (busy). */
 304                 p = icalproperty_new_transp(ICAL_TRANSP_OPAQUE);
 305                 if (p != NULL) {
 306                         icalcomponent_add_property(vevent, p);
 307                 }
 308         }
 309         if (p != NULL) {
 310                 v = icalproperty_get_value(p);
 311         }
 312         else {
 313                 v = NULL;
 314         }
 315
 316         wprintf("<INPUT TYPE=\"radio\" NAME=\"transp\" VALUE=\"transparent\"");
 317         if (v != NULL) if (icalvalue_get_transp(v) == ICAL_TRANSP_TRANSPARENT)
 318                 wprintf(" CHECKED");
 319         wprintf(">Free&nbsp;&nbsp;");
 320
 321         wprintf("<INPUT TYPE=\"radio\" NAME=\"transp\" VALUE=\"opaque\"");
 322         if (v != NULL) if (icalvalue_get_transp(v) == ICAL_TRANSP_OPAQUE)
 323                 wprintf(" CHECKED");
 324         wprintf(">Busy");
 325
 326         wprintf("</TD></TR>\n");
 327
 328         /* Attendees */
 329         wprintf("<TR><TD><B>Attendees</B><br />"
 330                 "<FONT SIZE=-2>(One per line)"
 331                 "</FONT></TD><TD>"
 332                 "<TEXTAREA %s NAME=\"attendees\" wrap=soft "
 333                 "ROWS=3 COLS=80 WIDTH=80>\n",
 334                 (organizer_is_me ? "" : "DISABLED ")
 335         );
 336         i = 0;
 337         for (attendee = icalcomponent_get_first_property(vevent, ICAL_ATTENDEE_PROPERTY);
 338             attendee != NULL;
 339             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("\n");
 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\" "
 364                                 "VALUE=\"Check attendee availability\">\n"
 365                 "&nbsp;&nbsp;"
 366                 "<INPUT TYPE=\"submit\" NAME=\"sc\" VALUE=\"Cancel\">\n"
 367                 "</CENTER>\n"
 368         );
 369
 370         wprintf("</FORM>\n");
 371
 372         wprintf("<script type=\"text/javascript\">"
 373                 "<!--"
 374                         "if (document.EventForm.alldayevent.checked) {"
 375                                 "document.EventForm.dtstart_hour.value='0';"
 376                                 "document.EventForm.dtstart_hour.disabled = true;"
 377                                 "document.EventForm.dtstart_minute.value='0';"
 378                                 "document.EventForm.dtstart_minute.disabled = true;"
 379                                 "document.EventForm.dtend_hour.value='0';"
 380                                 "document.EventForm.dtend_hour.disabled = true;"
 381                                 "document.EventForm.dtend_minute.value='0';"
 382                                 "document.EventForm.dtend_minute.disabled = true;"
 383                                 "document.EventForm.dtend_month.disabled = true;"
 384                                 "document.EventForm.dtend_day.disabled = true;"
 385                                 "document.EventForm.dtend_year.disabled = true;"
 386                         "}"
 387                         "else {"
 388                                 "document.EventForm.dtstart_hour.disabled = false;"
 389                                 "document.EventForm.dtstart_minute.disabled = false;"
 390                                 "document.EventForm.dtend_hour.disabled = false;"
 391                                 "document.EventForm.dtend_minute.disabled = false;"
 392                                 "document.EventForm.dtend_month.disabled = false;"
 393                                 "document.EventForm.dtend_day.disabled = false;"
 394                                 "document.EventForm.dtend_year.disabled = false;"
 395                         "}"
 396                 "//-->"
 397                 "</script>\n"
 398         );
 399
 400         do_template("endbox");
 401         wDumpContent(1);
 402
 403         if (created_new_vevent) {
 404                 icalcomponent_free(vevent);
 405         }
 406 }
 407
 408 /*
 409  * Save an edited event
 410  *
 411  */
 412 void save_individual_event(icalcomponent *supplied_vevent, long msgnum) {
 413         char buf[SIZ];
 414         icalproperty *prop;
 415         icalcomponent *vevent, *encaps;
 416         int created_new_vevent = 0;
 417         int all_day_event = 0;
 418         struct icaltimetype event_start;
 419         icalproperty *attendee = NULL;
 420         char attendee_string[SIZ];
 421         int i;
 422         int foundit;
 423         char form_attendees[SIZ];
 424         char organizer_string[SIZ];
 425         int sequence = 0;
 426         enum icalproperty_transp formtransp = ICAL_TRANSP_NONE;
 427
 428         if (supplied_vevent != NULL) {
 429                 vevent = supplied_vevent;
 430                 /* If we're looking at a fully encapsulated VCALENDAR
 431                  * rather than a VEVENT component, attempt to use the first
 432                  * relevant VEVENT subcomponent.  If there is none, the
 433                  * NULL returned by icalcomponent_get_first_component() will
 434                  * tell the next iteration of this function to create a
 435                  * new one.
 436                  */
 437                 if (icalcomponent_isa(vevent) == ICAL_VCALENDAR_COMPONENT) {
 438                         save_individual_event(
 439                                 icalcomponent_get_first_component(
 440                                         vevent, ICAL_VEVENT_COMPONENT
 441                                 ), msgnum
 442                         );
 443                         return;
 444                 }
 445         }
 446         else {
 447                 vevent = icalcomponent_new(ICAL_VEVENT_COMPONENT);
 448                 created_new_vevent = 1;
 449         }
 450
 451         if ( (!strcasecmp(bstr("sc"), "Save"))
 452            || (!strcasecmp(bstr("sc"), "Check attendee availability")) ) {
 453
 454                 /* Replace values in the component with ones from the form */
 455
 456                 while (prop = icalcomponent_get_first_property(vevent,
 457                       ICAL_SUMMARY_PROPERTY), prop != NULL) {
 458                         icalcomponent_remove_property(vevent, prop);
 459                         icalproperty_free(prop);
 460                 }
 461                 icalcomponent_add_property(vevent,
 462                         icalproperty_new_summary(bstr("summary")));
 463
 464                 while (prop = icalcomponent_get_first_property(vevent,
 465                       ICAL_LOCATION_PROPERTY), prop != NULL) {
 466                         icalcomponent_remove_property(vevent, prop);
 467                         icalproperty_free(prop);
 468                 }
 469                 icalcomponent_add_property(vevent,
 470                         icalproperty_new_location(bstr("location")));
 471
 472                 while (prop = icalcomponent_get_first_property(vevent,
 473                       ICAL_DESCRIPTION_PROPERTY), prop != NULL) {
 474                         icalcomponent_remove_property(vevent, prop);
 475                         icalproperty_free(prop);
 476                 }
 477                 icalcomponent_add_property(vevent,
 478                         icalproperty_new_description(bstr("description")));
 479
 480                 while (prop = icalcomponent_get_first_property(vevent,
 481                       ICAL_DTSTART_PROPERTY), prop != NULL) {
 482                         icalcomponent_remove_property(vevent, prop);
 483                         icalproperty_free(prop);
 484                 }
 485
 486                 if (!strcmp(bstr("alldayevent"), "yes")) {
 487                         all_day_event = 1;
 488                 }
 489                 else {
 490                         all_day_event = 0;
 491                 }
 492
 493                 event_start = icaltime_from_webform("dtstart");
 494                 if (all_day_event) {
 495                         event_start.is_date = 1;
 496                         event_start.hour = 0;
 497                         event_start.minute = 0;
 498                         event_start.second = 0;
 499                 }
 500
 501
 502                 /* The following odd-looking snippet of code looks like it
 503                  * takes some unnecessary steps.  It is done this way because
 504                  * libical incorrectly turns an "all day event" into a normal
 505                  * event starting at midnight (i.e. it serializes as date/time
 506                  * instead of just date) unless icalvalue_new_date() is used.
 507                  * So we force it, if this is an all day event.
 508                  */
 509                 prop = icalproperty_new_dtstart(event_start);
 510                 if (all_day_event) {
 511                         icalproperty_set_value(prop,
 512                                 icalvalue_new_date(event_start)
 513                         );
 514                 }
 515
 516                 if (prop) icalcomponent_add_property(vevent, prop);
 517                 else icalproperty_free(prop);
 518
 519                 while (prop = icalcomponent_get_first_property(vevent,
 520                       ICAL_DTEND_PROPERTY), prop != NULL) {
 521                         icalcomponent_remove_property(vevent, prop);
 522                         icalproperty_free(prop);
 523                 }
 524                 while (prop = icalcomponent_get_first_property(vevent,
 525                       ICAL_DURATION_PROPERTY), prop != NULL) {
 526                         icalcomponent_remove_property(vevent, prop);
 527                         icalproperty_free(prop);
 528                 }
 529
 530                 if (all_day_event == 0) {
 531                         icalcomponent_add_property(vevent,
 532                                 icalproperty_new_dtend(icaltime_normalize(
 533                                         icaltime_from_webform("dtend"))
 534                                 )
 535                         );
 536                 }
 537
 538                 /* See if transparency is indicated */
 539                 if (strlen(bstr("transp")) > 0) {
 540                         if (!strcasecmp(bstr("transp"), "opaque")) {
 541                                 formtransp = ICAL_TRANSP_OPAQUE;
 542                         }
 543                         else if (!strcasecmp(bstr("transp"), "transparent")) {
 544                                 formtransp = ICAL_TRANSP_TRANSPARENT;
 545                         }
 546
 547                         while (prop = icalcomponent_get_first_property(vevent, ICAL_TRANSP_PROPERTY),
 548                               (prop != NULL)) {
 549                                 icalcomponent_remove_property(vevent, prop);
 550                                 icalproperty_free(prop);
 551                         }
 552
 553                         lprintf(9, "adding new property...\n");
 554                         icalcomponent_add_property(vevent, icalproperty_new_transp(formtransp));
 555                         lprintf(9, "...added it.\n");
 556                 }
 557
 558                 /* Give this event a UID if it doesn't have one. */
 559                 lprintf(9, "Give this event a UID if it doesn't have one.\n");
 560                 if (icalcomponent_get_first_property(vevent,
 561                    ICAL_UID_PROPERTY) == NULL) {
 562                         generate_uuid(buf);
 563                         icalcomponent_add_property(vevent,
 564                                 icalproperty_new_uid(buf)
 565                         );
 566                 }
 567
 568                 /* Increment the sequence ID */
 569                 lprintf(9, "Increment the sequence ID\n");
 570                 while (prop = icalcomponent_get_first_property(vevent,
 571                       ICAL_SEQUENCE_PROPERTY), (prop != NULL) ) {
 572                         i = icalproperty_get_sequence(prop);
 573                         lprintf(9, "Sequence was %d\n", i);
 574                         if (i > sequence) sequence = i;
 575                         icalcomponent_remove_property(vevent, prop);
 576                         icalproperty_free(prop);
 577                 }
 578                 ++sequence;
 579                 lprintf(9, "New sequence is %d.  Adding...\n", sequence);
 580                 icalcomponent_add_property(vevent,
 581                         icalproperty_new_sequence(sequence)
 582                 );
 583
 584                 /* Set the organizer, only if one does not already exist *and*
 585                  * the form is supplying one
 586                  */
 587                 lprintf(9, "Setting the organizer...\n");
 588                 strcpy(buf, bstr("organizer"));
 589                 if ( (icalcomponent_get_first_property(vevent,
 590                    ICAL_ORGANIZER_PROPERTY) == NULL)
 591                    && (strlen(buf) > 0) ) {
 592
 593                         /* set new organizer */
 594                         sprintf(organizer_string, "MAILTO:%s", buf);
 595                         icalcomponent_add_property(vevent,
 596                                 icalproperty_new_organizer(organizer_string)
 597                         );
 598
 599                 }
 600
 601                 /*
 602                  * Add any new attendees listed in the web form
 603                  */
 604                 lprintf(9, "Add any new attendees\n");
 605
 606                 /* First, strip out the parenthesized partstats.  */
 607                 strcpy(form_attendees, bstr("attendees"));
 608                 stripout(form_attendees, '(', ')');
 609
 610                 /* Now iterate! */
 611                 for (i=0; i<num_tokens(form_attendees, '\n'); ++i) {
 612                         extract_token(buf, form_attendees, i, '\n');
 613                         striplt(buf);
 614                         if (strlen(buf) > 0) {
 615                                 lprintf(9, "Attendee: <%s>\n", buf);
 616                                 sprintf(attendee_string, "MAILTO:%s", buf);
 617                                 foundit = 0;
 618
 619                                 for (attendee = icalcomponent_get_first_property(vevent, ICAL_ATTENDEE_PROPERTY); attendee != NULL; attendee = icalcomponent_get_next_property(vevent, ICAL_ATTENDEE_PROPERTY)) {
 620                                         if (!strcasecmp(attendee_string,
 621                                            icalproperty_get_attendee(attendee)))
 622                                                 ++foundit;
 623                                 }
 624
 625
 626                                 if (foundit == 0) {
 627                                         icalcomponent_add_property(vevent,
 628                                                 icalproperty_new_attendee(attendee_string)
 629                                         );
 630                                 }
 631                         }
 632                 }
 633
 634                 /*
 635                  * Remove any attendees *not* listed in the web form
 636                  */
 637 STARTOVER:      lprintf(9, "Remove unlisted attendees\n");
 638                 for (attendee = icalcomponent_get_first_property(vevent, ICAL_ATTENDEE_PROPERTY); attendee != NULL; attendee = icalcomponent_get_next_property(vevent, ICAL_ATTENDEE_PROPERTY)) {
 639                         strcpy(attendee_string, icalproperty_get_attendee(attendee));
 640                         if (!strncasecmp(attendee_string, "MAILTO:", 7)) {
 641                                 strcpy(attendee_string, &attendee_string[7]);
 642                                 striplt(attendee_string);
 643                                 foundit = 0;
 644                                 for (i=0; i<num_tokens(form_attendees, '\n'); ++i) {
 645                                         extract_token(buf, form_attendees, i, '\n');
 646                                         striplt(buf);
 647                                         if (!strcasecmp(buf, attendee_string)) ++foundit;
 648                                 }
 649                                 if (foundit == 0) {
 650                                         icalcomponent_remove_property(vevent, attendee);
 651                                         icalproperty_free(attendee);
 652                                         goto STARTOVER;
 653                                 }
 654                         }
 655                 }
 656
 657                 /*
 658                  * Encapsulate event into full VCALENDAR component.  Clone it first,
 659                  * for two reasons: one, it's easier to just free the whole thing
 660                  * when we're done instead of unbundling, but more importantly, we
 661                  * can't encapsulate something that may already be encapsulated
 662                  * somewhere else.
 663                  */
 664                 lprintf(9, "Encapsulating into full VCALENDAR component\n");
 665                 encaps = ical_encapsulate_subcomponent(icalcomponent_new_clone(vevent));
 666
 667                 /* If the user clicked 'Save' then save it to the server. */
 668                 lprintf(9, "Serializing it for saving\n");
 669                 if ( (encaps != NULL) && (!strcasecmp(bstr("sc"), "Save")) ) {
 670                         serv_puts("ENT0 1|||4");
 671                         serv_gets(buf);
 672                         if (buf[0] == '4') {
 673                                 serv_puts("Content-type: text/calendar");
 674                                 serv_puts("");
 675                                 serv_puts(icalcomponent_as_ical_string(encaps));
 676                                 serv_puts("000");
 677                         }
 678                         icalcomponent_free(encaps);
 679                 }
 680
 681                 /* Or, check attendee availability if the user asked for that. */
 682                 if ( (encaps != NULL) && (!strcasecmp(bstr("sc"), "Check attendee availability")) ) {
 683
 684                         /* Call this function, which does the real work */
 685                         check_attendee_availability(encaps);
 686
 687                         /* This displays the form again, with our annotations */
 688                         display_edit_individual_event(encaps, msgnum);
 689
 690                         icalcomponent_free(encaps);
 691                 }
 692
 693         }
 694
 695         /*
 696          * If the user clicked 'Delete' then delete it.
 697          */
 698         lprintf(9, "Checking to see if we have to delete an old event\n");
 699         if ( (!strcasecmp(bstr("sc"), "Delete")) && (msgnum > 0L) ) {
 700                 serv_printf("DELE %ld", atol(bstr("msgnum")));
 701                 serv_gets(buf);
 702         }
 703
 704         if (created_new_vevent) {
 705                 icalcomponent_free(vevent);
 706         }
 707
 708         /* If this was a save or deelete, go back to the calendar view. */
 709         if (strcasecmp(bstr("sc"), "Check attendee availability")) {
 710                 readloop("readfwd");
 711         }
 712 }
 713
 714
 715 #endif /* WEBCIT_WITH_CALENDAR_SERVICE */