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, 2, 0, 0, 0, 0);
  88         wprintf("<div id=\"banner\">\n"
  89                 "<TABLE WIDTH=100%% BORDER=0 BGCOLOR=\"#444455\"><TR><TD>"
  90                 "<SPAN CLASS=\"titlebar\">Add or edit an event</SPAN>"
  91                 "</TD></TR></TABLE>\n"
  92                 "</div>\n<div id=\"content\">\n"
  93         );
  94
  95         wprintf("<div id=\"fix_scrollbar_bug\">"
  96                 "<table border=0 width=100%% bgcolor=\"#ffffff\"><tr><td>\n");
  97
  98         /************************************************************
  99          * Uncomment this to see the UID in calendar events for debugging
 100         wprintf("UID == ");
 101         p = icalcomponent_get_first_property(vevent, ICAL_UID_PROPERTY);
 102         if (p != NULL) {
 103                 escputs((char *)icalproperty_get_comment(p));
 104         }
 105         wprintf("<br />\n");
 106         wprintf("SEQUENCE == %d<br />\n", sequence);
 107         *************************************************************/
 108
 109         wprintf("<FORM NAME=\"EventForm\" METHOD=\"POST\" ACTION=\"/save_event\">\n");
 110
 111         wprintf("<INPUT TYPE=\"hidden\" NAME=\"msgnum\" VALUE=\"%ld\">\n",
 112                 msgnum);
 113         wprintf("<INPUT TYPE=\"hidden\" NAME=\"calview\" VALUE=\"%s\">\n",
 114                 bstr("calview"));
 115         wprintf("<INPUT TYPE=\"hidden\" NAME=\"year\" VALUE=\"%s\">\n",
 116                 bstr("year"));
 117         wprintf("<INPUT TYPE=\"hidden\" NAME=\"month\" VALUE=\"%s\">\n",
 118                 bstr("month"));
 119         wprintf("<INPUT TYPE=\"hidden\" NAME=\"day\" VALUE=\"%s\">\n",
 120                 bstr("day"));
 121
 122         /* Put it in a borderless table so it lines up nicely */
 123         wprintf("<TABLE border=0 width=100%%>\n");
 124
 125         wprintf("<TR><TD><B>Summary</B></TD><TD>\n"
 126                 "<INPUT TYPE=\"text\" NAME=\"summary\" "
 127                 "MAXLENGTH=\"64\" SIZE=\"64\" VALUE=\"");
 128         p = icalcomponent_get_first_property(vevent, ICAL_SUMMARY_PROPERTY);
 129         if (p != NULL) {
 130                 escputs((char *)icalproperty_get_comment(p));
 131         }
 132         wprintf("\"></TD></TR>\n");
 133
 134         wprintf("<TR><TD><B>Location</B></TD><TD>\n"
 135                 "<INPUT TYPE=\"text\" NAME=\"location\" "
 136                 "MAXLENGTH=\"64\" SIZE=\"64\" VALUE=\"");
 137         p = icalcomponent_get_first_property(vevent, ICAL_LOCATION_PROPERTY);
 138         if (p != NULL) {
 139                 escputs((char *)icalproperty_get_comment(p));
 140         }
 141         wprintf("\"></TD></TR>\n");
 142
 143         wprintf("<TR><TD><B>Start</B></TD><TD>\n");
 144         p = icalcomponent_get_first_property(vevent, ICAL_DTSTART_PROPERTY);
 145         if (p != NULL) {
 146                 t_start = icalproperty_get_dtstart(p);
 147                 if (t_start.is_date) {
 148                         t_start.hour = 0;
 149                         t_start.minute = 0;
 150                         t_start.second = 0;
 151                 }
 152         }
 153         else {
 154                 localtime_r(&now, &tm_now);
 155                 if (strlen(bstr("year")) > 0) {
 156                         tm_now.tm_year = atoi(bstr("year")) - 1900;
 157                         tm_now.tm_mon = atoi(bstr("month")) - 1;
 158                         tm_now.tm_mday = atoi(bstr("day"));
 159                 }
 160                 if (strlen(bstr("hour")) > 0) {
 161                         tm_now.tm_hour = atoi(bstr("hour"));
 162                         tm_now.tm_min = atoi(bstr("minute"));
 163                         tm_now.tm_sec = 0;
 164                 }
 165                 else {
 166                         tm_now.tm_hour = 9;
 167                         tm_now.tm_min = 0;
 168                         tm_now.tm_sec = 0;
 169                 }
 170
 171                 t_start = icaltime_from_timet_with_zone(
 172                         mktime(&tm_now),
 173                         ((!strcasecmp(bstr("alldayevent"), "yes")) ? 1 : 0),
 174                         icaltimezone_get_utc_timezone()
 175                 );
 176                 t_start.is_utc = 1;
 177
 178         }
 179         display_icaltimetype_as_webform(&t_start, "dtstart");
 180
 181         wprintf("<INPUT TYPE=\"checkbox\" NAME=\"alldayevent\" "
 182                 "VALUE=\"yes\" onClick=\""
 183 ""
 184 "                       if (this.checked) { "
 185 "                               this.form.dtstart_hour.value='0'; "
 186 "                               this.form.dtstart_hour.disabled = true; "
 187 "                               this.form.dtstart_minute.value='0'; "
 188 "                               this.form.dtstart_minute.disabled = true; "
 189 "                               this.form.dtend_hour.value='0'; "
 190 "                               this.form.dtend_hour.disabled = true; "
 191 "                               this.form.dtend_minute.value='0'; "
 192 "                               this.form.dtend_minute.disabled = true; "
 193 "                               this.form.dtend_month.disabled = true; "
 194 "                               this.form.dtend_day.disabled = true; "
 195 "                               this.form.dtend_year.disabled = true; "
 196 "                       } "
 197 "                       else { "
 198 "                               this.form.dtstart_hour.disabled = false; "
 199 "                               this.form.dtstart_minute.disabled = false; "
 200 "                               this.form.dtend_hour.disabled = false; "
 201 "                               this.form.dtend_minute.disabled = false; "
 202 "                               this.form.dtend_month.disabled = false; "
 203 "                               this.form.dtend_day.disabled = false; "
 204 "                               this.form.dtend_year.disabled = false; "
 205 "                       } "
 206 " "
 207 " "
 208 "               \" %s >All day event",
 209                 (t_start.is_date ? "CHECKED" : "" )
 210         );
 211
 212         wprintf("</TD></TR>\n");
 213
 214         /* If this is an all-day-event, set the end time to be identical to
 215          * the start time (the hour/minute/second will be set to midnight).
 216          * Otherwise extract or create it.
 217          */
 218         wprintf("<TR><TD><B>End</B></TD><TD>\n");
 219         if (t_start.is_date) {
 220                 t_end = t_start;
 221         }
 222         else {
 223                 p = icalcomponent_get_first_property(vevent,
 224                                                         ICAL_DTEND_PROPERTY);
 225                 if (p != NULL) {
 226                         t_end = icalproperty_get_dtend(p);
 227                 }
 228                 else {
 229                         /* If this is not an all-day event and there is no
 230                          * end time specified, make the default one hour
 231                          * from the start time.
 232                          */
 233                         t_end = t_start;
 234                         t_end.hour += 1;
 235                         t_end.second = 0;
 236                         t_end = icaltime_normalize(t_end);
 237                         /* t_end = icaltime_from_timet(now, 0); */
 238                 }
 239         }
 240         display_icaltimetype_as_webform(&t_end, "dtend");
 241         wprintf("</TD></TR>\n");
 242
 243         wprintf("<TR><TD><B>Notes</B></TD><TD>\n"
 244                 "<TEXTAREA NAME=\"description\" wrap=soft "
 245                 "ROWS=5 COLS=80 WIDTH=80>\n"
 246         );
 247         p = icalcomponent_get_first_property(vevent, ICAL_DESCRIPTION_PROPERTY);
 248         if (p != NULL) {
 249                 escputs((char *)icalproperty_get_comment(p));
 250         }
 251         wprintf("</TEXTAREA></TD></TR>");
 252
 253         /* For a new event, the user creating the event should be the
 254          * organizer.  Set this field accordingly.
 255          */
 256         if (icalcomponent_get_first_property(vevent, ICAL_ORGANIZER_PROPERTY)
 257            == NULL) {
 258                 sprintf(organizer_string, "MAILTO:%s", WC->cs_inet_email);
 259                 icalcomponent_add_property(vevent,
 260                         icalproperty_new_organizer(organizer_string)
 261                 );
 262         }
 263
 264         /* Determine who is the organizer of this event.
 265          * We need to determine "me" or "not me."
 266          */
 267         organizer = icalcomponent_get_first_property(vevent,
 268                                                 ICAL_ORGANIZER_PROPERTY);
 269         if (organizer != NULL) {
 270                 strcpy(organizer_string, icalproperty_get_organizer(organizer));
 271                 if (!strncasecmp(organizer_string, "MAILTO:", 7)) {
 272                         strcpy(organizer_string, &organizer_string[7]);
 273                         striplt(organizer_string);
 274                         lprintf(9, "ISME %s\n", organizer_string);
 275                         serv_printf("ISME %s", organizer_string);
 276                         serv_gets(buf);
 277                         lprintf(9, "%s\n", buf);
 278                         if (buf[0] == '2') {
 279                                 organizer_is_me = 1;
 280                         }
 281                 }
 282         }
 283
 284         wprintf("<TR><TD><B>Organizer</B></TD><TD>");
 285         escputs(organizer_string);
 286         if (organizer_is_me) {
 287                 wprintf(" <FONT SIZE=-1><I>"
 288                         "(you are the organizer)</I></FONT>\n");
 289         }
 290
 291         /*
 292          * Transmit the organizer as a hidden field.   We don't want the user
 293          * to be able to change it, but we do want it fed back to the server,
 294          * especially if this is a new event and there is no organizer already
 295          * in the calendar object.
 296          */
 297         wprintf("<INPUT TYPE=\"hidden\" NAME=\"organizer\" VALUE=\"");
 298         escputs(organizer_string);
 299         wprintf("\">");
 300
 301         wprintf("</TD></TR>\n");
 302
 303         /* Transparency */
 304         wprintf("<TR><TD><B>Show time as:</B></TD><TD>");
 305
 306         p = icalcomponent_get_first_property(vevent, ICAL_TRANSP_PROPERTY);
 307         if (p == NULL) {
 308                 /* No transparency found.  Default to opaque (busy). */
 309                 p = icalproperty_new_transp(ICAL_TRANSP_OPAQUE);
 310                 if (p != NULL) {
 311                         icalcomponent_add_property(vevent, p);
 312                 }
 313         }
 314         if (p != NULL) {
 315                 v = icalproperty_get_value(p);
 316         }
 317         else {
 318                 v = NULL;
 319         }
 320
 321         wprintf("<INPUT TYPE=\"radio\" NAME=\"transp\" VALUE=\"transparent\"");
 322         if (v != NULL) if (icalvalue_get_transp(v) == ICAL_TRANSP_TRANSPARENT)
 323                 wprintf(" CHECKED");
 324         wprintf(">Free&nbsp;&nbsp;");
 325
 326         wprintf("<INPUT TYPE=\"radio\" NAME=\"transp\" VALUE=\"opaque\"");
 327         if (v != NULL) if (icalvalue_get_transp(v) == ICAL_TRANSP_OPAQUE)
 328                 wprintf(" CHECKED");
 329         wprintf(">Busy");
 330
 331         wprintf("</TD></TR>\n");
 332
 333         /* Attendees */
 334         wprintf("<TR><TD><B>Attendees</B><br />"
 335                 "<FONT SIZE=-2>(One per line)"
 336                 "</FONT></TD><TD>"
 337                 "<TEXTAREA %s NAME=\"attendees\" wrap=soft "
 338                 "ROWS=3 COLS=80 WIDTH=80>\n",
 339                 (organizer_is_me ? "" : "DISABLED ")
 340         );
 341         i = 0;
 342         for (attendee = icalcomponent_get_first_property(vevent, ICAL_ATTENDEE_PROPERTY);
 343             attendee != NULL;
 344             attendee = icalcomponent_get_next_property(vevent, ICAL_ATTENDEE_PROPERTY)) {
 345                 strcpy(attendee_string, icalproperty_get_attendee(attendee));
 346                 if (!strncasecmp(attendee_string, "MAILTO:", 7)) {
 347
 348                         /* screen name or email address */
 349                         strcpy(attendee_string, &attendee_string[7]);
 350                         striplt(attendee_string);
 351                         if (i++) wprintf("\n");
 352                         escputs(attendee_string);
 353                         wprintf(" ");
 354
 355                         /* participant status */
 356                         partstat_as_string(buf, attendee);
 357                         escputs(buf);
 358                 }
 359         }
 360         wprintf("</TEXTAREA></TD></TR>\n");
 361
 362         /* Done with properties. */
 363         wprintf("</TABLE>\n<CENTER>"
 364                 "<INPUT TYPE=\"submit\" NAME=\"sc\" VALUE=\"Save\">"
 365                 "&nbsp;&nbsp;"
 366                 "<INPUT TYPE=\"submit\" NAME=\"sc\" VALUE=\"Delete\">\n"
 367                 "&nbsp;&nbsp;"
 368                 "<INPUT TYPE=\"submit\" NAME=\"sc\" "
 369                                 "VALUE=\"Check attendee availability\">\n"
 370                 "&nbsp;&nbsp;"
 371                 "<INPUT TYPE=\"submit\" NAME=\"sc\" VALUE=\"Cancel\">\n"
 372                 "</CENTER>\n"
 373         );
 374
 375         wprintf("</FORM>\n");
 376
 377         wprintf("<script type=\"text/javascript\">"
 378                 "<!--"
 379                         "if (document.EventForm.alldayevent.checked) {"
 380                                 "document.EventForm.dtstart_hour.value='0';"
 381                                 "document.EventForm.dtstart_hour.disabled = true;"
 382                                 "document.EventForm.dtstart_minute.value='0';"
 383                                 "document.EventForm.dtstart_minute.disabled = true;"
 384                                 "document.EventForm.dtend_hour.value='0';"
 385                                 "document.EventForm.dtend_hour.disabled = true;"
 386                                 "document.EventForm.dtend_minute.value='0';"
 387                                 "document.EventForm.dtend_minute.disabled = true;"
 388                                 "document.EventForm.dtend_month.disabled = true;"
 389                                 "document.EventForm.dtend_day.disabled = true;"
 390                                 "document.EventForm.dtend_year.disabled = true;"
 391                         "}"
 392                         "else {"
 393                                 "document.EventForm.dtstart_hour.disabled = false;"
 394                                 "document.EventForm.dtstart_minute.disabled = false;"
 395                                 "document.EventForm.dtend_hour.disabled = false;"
 396                                 "document.EventForm.dtend_minute.disabled = false;"
 397                                 "document.EventForm.dtend_month.disabled = false;"
 398                                 "document.EventForm.dtend_day.disabled = false;"
 399                                 "document.EventForm.dtend_year.disabled = false;"
 400                         "}"
 401                 "//-->"
 402                 "</script>\n"
 403         );
 404
 405         wprintf("</td></tr></table></div>\n");
 406         wDumpContent(1);
 407
 408         if (created_new_vevent) {
 409                 icalcomponent_free(vevent);
 410         }
 411 }
 412
 413 /*
 414  * Save an edited event
 415  *
 416  */
 417 void save_individual_event(icalcomponent *supplied_vevent, long msgnum) {
 418         char buf[SIZ];
 419         icalproperty *prop;
 420         icalcomponent *vevent, *encaps;
 421         int created_new_vevent = 0;
 422         int all_day_event = 0;
 423         struct icaltimetype event_start;
 424         icalproperty *attendee = NULL;
 425         char attendee_string[SIZ];
 426         int i;
 427         int foundit;
 428         char form_attendees[SIZ];
 429         char organizer_string[SIZ];
 430         int sequence = 0;
 431         enum icalproperty_transp formtransp = ICAL_TRANSP_NONE;
 432
 433         if (supplied_vevent != NULL) {
 434                 vevent = supplied_vevent;
 435                 /* If we're looking at a fully encapsulated VCALENDAR
 436                  * rather than a VEVENT component, attempt to use the first
 437                  * relevant VEVENT subcomponent.  If there is none, the
 438                  * NULL returned by icalcomponent_get_first_component() will
 439                  * tell the next iteration of this function to create a
 440                  * new one.
 441                  */
 442                 if (icalcomponent_isa(vevent) == ICAL_VCALENDAR_COMPONENT) {
 443                         save_individual_event(
 444                                 icalcomponent_get_first_component(
 445                                         vevent, ICAL_VEVENT_COMPONENT
 446                                 ), msgnum
 447                         );
 448                         return;
 449                 }
 450         }
 451         else {
 452                 vevent = icalcomponent_new(ICAL_VEVENT_COMPONENT);
 453                 created_new_vevent = 1;
 454         }
 455
 456         if ( (!strcasecmp(bstr("sc"), "Save"))
 457            || (!strcasecmp(bstr("sc"), "Check attendee availability")) ) {
 458
 459                 /* Replace values in the component with ones from the form */
 460
 461                 while (prop = icalcomponent_get_first_property(vevent,
 462                       ICAL_SUMMARY_PROPERTY), prop != NULL) {
 463                         icalcomponent_remove_property(vevent, prop);
 464                         icalproperty_free(prop);
 465                 }
 466                 icalcomponent_add_property(vevent,
 467                         icalproperty_new_summary(bstr("summary")));
 468
 469                 while (prop = icalcomponent_get_first_property(vevent,
 470                       ICAL_LOCATION_PROPERTY), prop != NULL) {
 471                         icalcomponent_remove_property(vevent, prop);
 472                         icalproperty_free(prop);
 473                 }
 474                 icalcomponent_add_property(vevent,
 475                         icalproperty_new_location(bstr("location")));
 476
 477                 while (prop = icalcomponent_get_first_property(vevent,
 478                       ICAL_DESCRIPTION_PROPERTY), prop != NULL) {
 479                         icalcomponent_remove_property(vevent, prop);
 480                         icalproperty_free(prop);
 481                 }
 482                 icalcomponent_add_property(vevent,
 483                         icalproperty_new_description(bstr("description")));
 484
 485                 while (prop = icalcomponent_get_first_property(vevent,
 486                       ICAL_DTSTART_PROPERTY), prop != NULL) {
 487                         icalcomponent_remove_property(vevent, prop);
 488                         icalproperty_free(prop);
 489                 }
 490
 491                 if (!strcmp(bstr("alldayevent"), "yes")) {
 492                         all_day_event = 1;
 493                 }
 494                 else {
 495                         all_day_event = 0;
 496                 }
 497
 498                 event_start = icaltime_from_webform("dtstart");
 499                 if (all_day_event) {
 500                         event_start.is_date = 1;
 501                         event_start.hour = 0;
 502                         event_start.minute = 0;
 503                         event_start.second = 0;
 504                 }
 505
 506
 507                 /* The following odd-looking snippet of code looks like it
 508                  * takes some unnecessary steps.  It is done this way because
 509                  * libical incorrectly turns an "all day event" into a normal
 510                  * event starting at midnight (i.e. it serializes as date/time
 511                  * instead of just date) unless icalvalue_new_date() is used.
 512                  * So we force it, if this is an all day event.
 513                  */
 514                 prop = icalproperty_new_dtstart(event_start);
 515                 if (all_day_event) {
 516                         icalproperty_set_value(prop,
 517                                 icalvalue_new_date(event_start)
 518                         );
 519                 }
 520
 521                 if (prop) icalcomponent_add_property(vevent, prop);
 522                 else icalproperty_free(prop);
 523
 524                 while (prop = icalcomponent_get_first_property(vevent,
 525                       ICAL_DTEND_PROPERTY), prop != NULL) {
 526                         icalcomponent_remove_property(vevent, prop);
 527                         icalproperty_free(prop);
 528                 }
 529                 while (prop = icalcomponent_get_first_property(vevent,
 530                       ICAL_DURATION_PROPERTY), prop != NULL) {
 531                         icalcomponent_remove_property(vevent, prop);
 532                         icalproperty_free(prop);
 533                 }
 534
 535                 if (all_day_event == 0) {
 536                         icalcomponent_add_property(vevent,
 537                                 icalproperty_new_dtend(icaltime_normalize(
 538                                         icaltime_from_webform("dtend"))
 539                                 )
 540                         );
 541                 }
 542
 543                 /* See if transparency is indicated */
 544                 if (strlen(bstr("transp")) > 0) {
 545                         if (!strcasecmp(bstr("transp"), "opaque")) {
 546                                 formtransp = ICAL_TRANSP_OPAQUE;
 547                         }
 548                         else if (!strcasecmp(bstr("transp"), "transparent")) {
 549                                 formtransp = ICAL_TRANSP_TRANSPARENT;
 550                         }
 551
 552                         while (prop = icalcomponent_get_first_property(vevent, ICAL_TRANSP_PROPERTY),
 553                               (prop != NULL)) {
 554                                 icalcomponent_remove_property(vevent, prop);
 555                                 icalproperty_free(prop);
 556                         }
 557
 558                         lprintf(9, "adding new property...\n");
 559                         icalcomponent_add_property(vevent, icalproperty_new_transp(formtransp));
 560                         lprintf(9, "...added it.\n");
 561                 }
 562
 563                 /* Give this event a UID if it doesn't have one. */
 564                 lprintf(9, "Give this event a UID if it doesn't have one.\n");
 565                 if (icalcomponent_get_first_property(vevent,
 566                    ICAL_UID_PROPERTY) == NULL) {
 567                         generate_uuid(buf);
 568                         icalcomponent_add_property(vevent,
 569                                 icalproperty_new_uid(buf)
 570                         );
 571                 }
 572
 573                 /* Increment the sequence ID */
 574                 lprintf(9, "Increment the sequence ID\n");
 575                 while (prop = icalcomponent_get_first_property(vevent,
 576                       ICAL_SEQUENCE_PROPERTY), (prop != NULL) ) {
 577                         i = icalproperty_get_sequence(prop);
 578                         lprintf(9, "Sequence was %d\n", i);
 579                         if (i > sequence) sequence = i;
 580                         icalcomponent_remove_property(vevent, prop);
 581                         icalproperty_free(prop);
 582                 }
 583                 ++sequence;
 584                 lprintf(9, "New sequence is %d.  Adding...\n", sequence);
 585                 icalcomponent_add_property(vevent,
 586                         icalproperty_new_sequence(sequence)
 587                 );
 588
 589                 /* Set the organizer, only if one does not already exist *and*
 590                  * the form is supplying one
 591                  */
 592                 lprintf(9, "Setting the organizer...\n");
 593                 strcpy(buf, bstr("organizer"));
 594                 if ( (icalcomponent_get_first_property(vevent,
 595                    ICAL_ORGANIZER_PROPERTY) == NULL)
 596                    && (strlen(buf) > 0) ) {
 597
 598                         /* set new organizer */
 599                         sprintf(organizer_string, "MAILTO:%s", buf);
 600                         icalcomponent_add_property(vevent,
 601                                 icalproperty_new_organizer(organizer_string)
 602                         );
 603
 604                 }
 605
 606                 /*
 607                  * Add any new attendees listed in the web form
 608                  */
 609                 lprintf(9, "Add any new attendees\n");
 610
 611                 /* First, strip out the parenthesized partstats.  */
 612                 strcpy(form_attendees, bstr("attendees"));
 613                 stripout(form_attendees, '(', ')');
 614
 615                 /* Now iterate! */
 616                 for (i=0; i<num_tokens(form_attendees, '\n'); ++i) {
 617                         extract_token(buf, form_attendees, i, '\n', sizeof buf);
 618                         striplt(buf);
 619                         if (strlen(buf) > 0) {
 620                                 lprintf(9, "Attendee: <%s>\n", buf);
 621                                 sprintf(attendee_string, "MAILTO:%s", buf);
 622                                 foundit = 0;
 623
 624                                 for (attendee = icalcomponent_get_first_property(vevent, ICAL_ATTENDEE_PROPERTY); attendee != NULL; attendee = icalcomponent_get_next_property(vevent, ICAL_ATTENDEE_PROPERTY)) {
 625                                         if (!strcasecmp(attendee_string,
 626                                            icalproperty_get_attendee(attendee)))
 627                                                 ++foundit;
 628                                 }
 629
 630
 631                                 if (foundit == 0) {
 632                                         icalcomponent_add_property(vevent,
 633                                                 icalproperty_new_attendee(attendee_string)
 634                                         );
 635                                 }
 636                         }
 637                 }
 638
 639                 /*
 640                  * Remove any attendees *not* listed in the web form
 641                  */
 642 STARTOVER:      lprintf(9, "Remove unlisted attendees\n");
 643                 for (attendee = icalcomponent_get_first_property(vevent, ICAL_ATTENDEE_PROPERTY); attendee != NULL; attendee = icalcomponent_get_next_property(vevent, ICAL_ATTENDEE_PROPERTY)) {
 644                         strcpy(attendee_string, icalproperty_get_attendee(attendee));
 645                         if (!strncasecmp(attendee_string, "MAILTO:", 7)) {
 646                                 strcpy(attendee_string, &attendee_string[7]);
 647                                 striplt(attendee_string);
 648                                 foundit = 0;
 649                                 for (i=0; i<num_tokens(form_attendees, '\n'); ++i) {
 650                                         extract_token(buf, form_attendees, i, '\n', sizeof buf);
 651                                         striplt(buf);
 652                                         if (!strcasecmp(buf, attendee_string)) ++foundit;
 653                                 }
 654                                 if (foundit == 0) {
 655                                         icalcomponent_remove_property(vevent, attendee);
 656                                         icalproperty_free(attendee);
 657                                         goto STARTOVER;
 658                                 }
 659                         }
 660                 }
 661
 662                 /*
 663                  * Encapsulate event into full VCALENDAR component.  Clone it first,
 664                  * for two reasons: one, it's easier to just free the whole thing
 665                  * when we're done instead of unbundling, but more importantly, we
 666                  * can't encapsulate something that may already be encapsulated
 667                  * somewhere else.
 668                  */
 669                 lprintf(9, "Encapsulating into full VCALENDAR component\n");
 670                 encaps = ical_encapsulate_subcomponent(icalcomponent_new_clone(vevent));
 671
 672                 /* If the user clicked 'Save' then save it to the server. */
 673                 lprintf(9, "Serializing it for saving\n");
 674                 if ( (encaps != NULL) && (!strcasecmp(bstr("sc"), "Save")) ) {
 675                         serv_puts("ENT0 1|||4|||1|");
 676                         serv_gets(buf);
 677                         if (buf[0] == '8') {
 678                                 serv_puts("Content-type: text/calendar");
 679                                 serv_puts("");
 680                                 serv_puts(icalcomponent_as_ical_string(encaps));
 681                                 serv_puts("000");
 682                         }
 683                         while (serv_gets(buf), strcmp(buf, "000")) {
 684                                 lprintf(9, "ENT0 REPLY: %s\n", buf);
 685                         }
 686                         icalcomponent_free(encaps);
 687                 }
 688
 689                 /* Or, check attendee availability if the user asked for that. */
 690                 if ( (encaps != NULL) && (!strcasecmp(bstr("sc"), "Check attendee availability")) ) {
 691
 692                         /* Call this function, which does the real work */
 693                         check_attendee_availability(encaps);
 694
 695                         /* This displays the form again, with our annotations */
 696                         display_edit_individual_event(encaps, msgnum);
 697
 698                         icalcomponent_free(encaps);
 699                 }
 700
 701         }
 702
 703         /*
 704          * If the user clicked 'Delete' then delete it.
 705          */
 706         lprintf(9, "Checking to see if we have to delete an old event\n");
 707         if ( (!strcasecmp(bstr("sc"), "Delete")) && (msgnum > 0L) ) {
 708                 serv_printf("DELE %ld", atol(bstr("msgnum")));
 709                 serv_gets(buf);
 710         }
 711
 712         if (created_new_vevent) {
 713                 icalcomponent_free(vevent);
 714         }
 715
 716         /* If this was a save or deelete, go back to the calendar view. */
 717         if (strcasecmp(bstr("sc"), "Check attendee availability")) {
 718                 readloop("readfwd");
 719         }
 720 }
 721
 722
 723 #endif /* WEBCIT_WITH_CALENDAR_SERVICE */