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