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