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 HAVE_ICAL_H
  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         struct icaltimetype t_start, t_end;
  40         time_t now;
  41         int created_new_vevent = 0;
  42         icalproperty *organizer = NULL;
  43         char organizer_string[SIZ];
  44         icalproperty *attendee = NULL;
  45         char attendee_string[SIZ];
  46         char buf[SIZ];
  47         int i;
  48         int organizer_is_me = 0;
  49         int sequence = 0;
  50
  51         now = time(NULL) % 60;  /* mod 60 to force :00 seconds */
  52         strcpy(organizer_string, "");
  53         strcpy(attendee_string, "");
  54
  55         if (supplied_vevent != NULL) {
  56                 vevent = supplied_vevent;
  57         }
  58         else {
  59                 vevent = icalcomponent_new(ICAL_VEVENT_COMPONENT);
  60                 created_new_vevent = 1;
  61         }
  62
  63         /* Learn the sequence */
  64         p = icalcomponent_get_first_property(vevent, ICAL_SEQUENCE_PROPERTY);
  65         if (p != NULL) {
  66                 sequence = icalproperty_get_sequence(p);
  67         }
  68
  69         /* Begin output */
  70         output_headers(3);
  71         wprintf("<TABLE WIDTH=100%% BORDER=0 BGCOLOR=007700><TR><TD>"
  72                 "<IMG ALIGN=CENTER SRC=\"/static/vcalendar.gif\">"
  73                 "<FONT SIZE=+1 COLOR=\"FFFFFF\""
  74                 "<B>Edit event</B>"
  75                 "</FONT></TD></TR></TABLE><BR>\n"
  76         );
  77
  78         /************************************************************
  79          * Uncomment this to see the UID in calendar events for debugging
  80         wprintf("UID == ");
  81         p = icalcomponent_get_first_property(vevent, ICAL_UID_PROPERTY);
  82         if (p != NULL) {
  83                 escputs((char *)icalproperty_get_comment(p));
  84         }
  85         wprintf("<BR>\n");
  86         wprintf("SEQUENCE == %d<BR>\n", sequence);
  87         *************************************************************/
  88
  89         wprintf("<FORM NAME=\"EventForm\" METHOD=\"POST\" ACTION=\"/save_event\">\n");
  90
  91         wprintf("<INPUT TYPE=\"hidden\" NAME=\"msgnum\" VALUE=\"%ld\">\n",
  92                 msgnum);
  93         wprintf("<INPUT TYPE=\"hidden\" NAME=\"calview\" VALUE=\"%s\">\n",
  94                 bstr("calview"));
  95         wprintf("<INPUT TYPE=\"hidden\" NAME=\"year\" VALUE=\"%s\">\n",
  96                 bstr("year"));
  97         wprintf("<INPUT TYPE=\"hidden\" NAME=\"month\" VALUE=\"%s\">\n",
  98                 bstr("month"));
  99         wprintf("<INPUT TYPE=\"hidden\" NAME=\"day\" VALUE=\"%s\">\n",
 100                 bstr("day"));
 101
 102         /* Put it in a borderless table so it lines up nicely */
 103         wprintf("<TABLE border=0 width=100%%>\n");
 104
 105         wprintf("<TR><TD><B>Summary</B></TD><TD>\n"
 106                 "<INPUT TYPE=\"text\" NAME=\"summary\" "
 107                 "MAXLENGTH=\"64\" SIZE=\"64\" VALUE=\"");
 108         p = icalcomponent_get_first_property(vevent, ICAL_SUMMARY_PROPERTY);
 109         if (p != NULL) {
 110                 escputs((char *)icalproperty_get_comment(p));
 111         }
 112         wprintf("\"></TD></TR>\n");
 113
 114         wprintf("<TR><TD><B>Location</B></TD><TD>\n"
 115                 "<INPUT TYPE=\"text\" NAME=\"location\" "
 116                 "MAXLENGTH=\"64\" SIZE=\"64\" VALUE=\"");
 117         p = icalcomponent_get_first_property(vevent, ICAL_LOCATION_PROPERTY);
 118         if (p != NULL) {
 119                 escputs((char *)icalproperty_get_comment(p));
 120         }
 121         wprintf("\"></TD></TR>\n");
 122
 123         wprintf("<TR><TD><B>Start</B></TD><TD>\n");
 124         p = icalcomponent_get_first_property(vevent, ICAL_DTSTART_PROPERTY);
 125         if (p != NULL) {
 126                 t_start = icalproperty_get_dtstart(p);
 127                 if (t_start.is_date) {
 128                         t_start.hour = 0;
 129                         t_start.minute = 0;
 130                         t_start.second = 0;
 131                 }
 132         }
 133         else {
 134                 memset(&t_start, 0, sizeof t_start);
 135                 t_start.year = atoi(bstr("year"));
 136                 t_start.month = atoi(bstr("month"));
 137                 t_start.day = atoi(bstr("day"));
 138                 if (strlen(bstr("hour")) > 0) {
 139                         t_start.hour = atoi(bstr("hour"));
 140                         t_start.minute = atoi(bstr("minute"));
 141                         t_start.second = 0;
 142                 }
 143                 else {
 144                         t_start.hour = 9;
 145                         t_start.minute = 0;
 146                         t_start.second = 0;
 147                 }
 148         }
 149         display_icaltimetype_as_webform(&t_start, "dtstart");
 150
 151         wprintf("<INPUT TYPE=\"checkbox\" NAME=\"alldayevent\" "
 152                 "VALUE=\"yes\" onClick=\"
 153
 154                         if (this.checked) {
 155                                 this.form.dtstart_hour.value='0';
 156                                 this.form.dtstart_hour.disabled = true;
 157                                 this.form.dtstart_minute.value='0';
 158                                 this.form.dtstart_minute.disabled = true;
 159                                 this.form.dtend_hour.value='0';
 160                                 this.form.dtend_hour.disabled = true;
 161                                 this.form.dtend_minute.value='0';
 162                                 this.form.dtend_minute.disabled = true;
 163                                 this.form.dtend_month.disabled = true;
 164                                 this.form.dtend_day.disabled = true;
 165                                 this.form.dtend_year.disabled = true;
 166                         }
 167                         else {
 168                                 this.form.dtstart_hour.disabled = false;
 169                                 this.form.dtstart_minute.disabled = false;
 170                                 this.form.dtend_hour.disabled = false;
 171                                 this.form.dtend_minute.disabled = false;
 172                                 this.form.dtend_month.disabled = false;
 173                                 this.form.dtend_day.disabled = false;
 174                                 this.form.dtend_year.disabled = false;
 175                         }
 176
 177
 178                 \" %s >All day event",
 179                 (t_start.is_date ? "CHECKED" : "" )
 180         );
 181
 182         wprintf("</TD></TR>\n");
 183
 184         /* If this is an all-day-event, set the end time to be identical to
 185          * the start time (the hour/minute/second will be set to midnight).
 186          * Otherwise extract or create it.
 187          */
 188         wprintf("<TR><TD><B>End</B></TD><TD>\n");
 189         if (t_start.is_date) {
 190                 t_end = t_start;
 191         }
 192         else {
 193                 p = icalcomponent_get_first_property(vevent,
 194                                                         ICAL_DTEND_PROPERTY);
 195                 if (p != NULL) {
 196                         t_end = icalproperty_get_dtend(p);
 197                 }
 198                 else {
 199                         /* If this is not an all-day event and there is no
 200                          * end time specified, make the default one hour
 201                          * from the start time.
 202                          */
 203                         t_end = t_start;
 204                         t_end.hour += 1;
 205                         t_end.second = 0;
 206                         t_end = icaltime_normalize(t_end);
 207                         /* t_end = icaltime_from_timet(now, 0); */
 208                 }
 209         }
 210         display_icaltimetype_as_webform(&t_end, "dtend");
 211         wprintf("</TD></TR>\n");
 212
 213         wprintf("<TR><TD><B>Notes</B></TD><TD>\n"
 214                 "<TEXTAREA NAME=\"description\" wrap=soft "
 215                 "ROWS=10 COLS=80 WIDTH=80>\n"
 216         );
 217         p = icalcomponent_get_first_property(vevent, ICAL_DESCRIPTION_PROPERTY);
 218         if (p != NULL) {
 219                 escputs((char *)icalproperty_get_comment(p));
 220         }
 221         wprintf("</TEXTAREA></TD></TR>");
 222
 223         /* For a new event, the user creating the event should be the
 224          * organizer.  Set this field accordingly.
 225          */
 226         if (icalcomponent_get_first_property(vevent, ICAL_ORGANIZER_PROPERTY)
 227            == NULL) {
 228                 sprintf(organizer_string, "MAILTO:%s", WC->cs_inet_email);
 229                 icalcomponent_add_property(vevent,
 230                         icalproperty_new_organizer(organizer_string)
 231                 );
 232         }
 233
 234         /* Determine who is the organizer of this event.
 235          * We need to determine "me" or "not me."
 236          */
 237         organizer = icalcomponent_get_first_property(vevent,
 238                                                 ICAL_ORGANIZER_PROPERTY);
 239         if (organizer != NULL) {
 240                 strcpy(organizer_string, icalproperty_get_organizer(organizer));
 241                 if (!strncasecmp(organizer_string, "MAILTO:", 7)) {
 242                         strcpy(organizer_string, &organizer_string[7]);
 243                         striplt(organizer_string);
 244                         lprintf(9, "ISME %s\n", organizer_string);
 245                         serv_printf("ISME %s", organizer_string);
 246                         serv_gets(buf);
 247                         lprintf(9, "%s\n", buf);
 248                         if (buf[0] == '2') {
 249                                 organizer_is_me = 1;
 250                         }
 251                 }
 252         }
 253         wprintf("<TR><TD><B>Organizer</B></TD><TD>");
 254         escputs(organizer_string);
 255         if (organizer_is_me) {
 256                 wprintf(" <FONT SIZE=-1><I>"
 257                         "(you are the organizer)</I></FONT>\n");
 258         }
 259
 260         /*
 261          * Transmit the organizer as a hidden field.   We don't want the user
 262          * to be able to change it, but we do want it fed back to the server,
 263          * especially if this is a new event and there is no organizer already
 264          * in the calendar object.
 265          */
 266         wprintf("<INPUT TYPE=\"hidden\" NAME=\"organizer\" VALUE=\"");
 267         escputs(organizer_string);
 268         wprintf("\">");
 269
 270         wprintf("</TD></TR>\n");
 271
 272         /* Attendees (do more with this later) */
 273         wprintf("<TR><TD><B>Attendes</B><BR>"
 274                 "<FONT SIZE=-2>(Separate multiple attendees with commas)"
 275                 "</FONT></TD><TD>"
 276                 "<TEXTAREA %s NAME=\"attendees\" wrap=soft "
 277                 "ROWS=3 COLS=80 WIDTH=80>\n",
 278                 (organizer_is_me ? "" : "DISABLED ")
 279         );
 280         i = 0;
 281         for (attendee = icalcomponent_get_first_property(vevent, ICAL_ATTENDEE_PROPERTY); attendee != NULL; attendee = icalcomponent_get_next_property(vevent, ICAL_ATTENDEE_PROPERTY)) {
 282                 strcpy(attendee_string, icalproperty_get_attendee(attendee));
 283                 if (!strncasecmp(attendee_string, "MAILTO:", 7)) {
 284
 285                         /* screen name or email address */
 286                         strcpy(attendee_string, &attendee_string[7]);
 287                         striplt(attendee_string);
 288                         if (i++) wprintf(", ");
 289                         escputs(attendee_string);
 290                         wprintf(" ");
 291
 292                         /* participant status */
 293                         partstat_as_string(buf, attendee);
 294                         escputs(buf);
 295                 }
 296         }
 297         wprintf("</TEXTAREA></TD></TR>\n");
 298
 299         /* Done with properties. */
 300         wprintf("</TABLE>\n<CENTER>"
 301                 "<INPUT TYPE=\"submit\" NAME=\"sc\" VALUE=\"Save\">"
 302                 "&nbsp;&nbsp;"
 303                 "<INPUT TYPE=\"submit\" NAME=\"sc\" VALUE=\"Delete\">\n"
 304                 "&nbsp;&nbsp;"
 305                 "<INPUT TYPE=\"submit\" NAME=\"sc\" VALUE=\"Cancel\">\n"
 306                 "</CENTER>\n"
 307         );
 308
 309         wprintf("</FORM>\n");
 310
 311         wprintf("<SCRIPT language=\"javascript\">
 312                 <!--
 313
 314                         if (document.EventForm.alldayevent.checked) {
 315                                 document.EventForm.dtstart_hour.value='0';
 316                                 document.EventForm.dtstart_hour.disabled = true;
 317                                 document.EventForm.dtstart_minute.value='0';
 318                                 document.EventForm.dtstart_minute.disabled = true;
 319                                 document.EventForm.dtend_hour.value='0';
 320                                 document.EventForm.dtend_hour.disabled = true;
 321                                 document.EventForm.dtend_minute.value='0';
 322                                 document.EventForm.dtend_minute.disabled = true;
 323                                 document.EventForm.dtend_month.disabled = true;
 324                                 document.EventForm.dtend_day.disabled = true;
 325                                 document.EventForm.dtend_year.disabled = true;
 326                         }
 327                         else {
 328                                 document.EventForm.dtstart_hour.disabled = false;
 329                                 document.EventForm.dtstart_minute.disabled = false;
 330                                 document.EventForm.dtend_hour.disabled = false;
 331                                 document.EventForm.dtend_minute.disabled = false;
 332                                 document.EventForm.dtend_month.disabled = false;
 333                                 document.EventForm.dtend_day.disabled = false;
 334                                 document.EventForm.dtend_year.disabled = false;
 335                         }
 336                 //-->
 337                 </SCRIPT>
 338         ");
 339
 340         wDumpContent(1);
 341
 342         if (created_new_vevent) {
 343                 icalcomponent_free(vevent);
 344         }
 345 }
 346
 347 /*
 348  * Save an edited event
 349  */
 350 void save_individual_event(icalcomponent *supplied_vevent, long msgnum) {
 351         char buf[SIZ];
 352         icalproperty *prop;
 353         icalcomponent *vevent;
 354         int created_new_vevent = 0;
 355         int all_day_event = 0;
 356         struct icaltimetype event_start;
 357         icalproperty *attendee = NULL;
 358         char attendee_string[SIZ];
 359         int i;
 360         int foundit;
 361         char form_attendees[SIZ];
 362         char organizer_string[SIZ];
 363         int sequence = 0;
 364
 365         if (supplied_vevent != NULL) {
 366                 vevent = supplied_vevent;
 367         }
 368         else {
 369                 vevent = icalcomponent_new(ICAL_VEVENT_COMPONENT);
 370                 created_new_vevent = 1;
 371         }
 372
 373         if (!strcasecmp(bstr("sc"), "Save")) {
 374
 375                 /* Replace values in the component with ones from the form */
 376
 377                 while (prop = icalcomponent_get_first_property(vevent,
 378                       ICAL_SUMMARY_PROPERTY), prop != NULL) {
 379                         icalcomponent_remove_property(vevent, prop);
 380                         icalproperty_free(prop);
 381                 }
 382                 icalcomponent_add_property(vevent,
 383                         icalproperty_new_summary(bstr("summary")));
 384
 385                 while (prop = icalcomponent_get_first_property(vevent,
 386                       ICAL_LOCATION_PROPERTY), prop != NULL) {
 387                         icalcomponent_remove_property(vevent, prop);
 388                         icalproperty_free(prop);
 389                 }
 390                 icalcomponent_add_property(vevent,
 391                         icalproperty_new_location(bstr("location")));
 392
 393                 while (prop = icalcomponent_get_first_property(vevent,
 394                       ICAL_DESCRIPTION_PROPERTY), prop != NULL) {
 395                         icalcomponent_remove_property(vevent, prop);
 396                         icalproperty_free(prop);
 397                 }
 398                 icalcomponent_add_property(vevent,
 399                         icalproperty_new_description(bstr("description")));
 400
 401                 while (prop = icalcomponent_get_first_property(vevent,
 402                       ICAL_DTSTART_PROPERTY), prop != NULL) {
 403                         icalcomponent_remove_property(vevent, prop);
 404                         icalproperty_free(prop);
 405                 }
 406
 407                 if (!strcmp(bstr("alldayevent"), "yes")) {
 408                         all_day_event = 1;
 409                 }
 410                 else {
 411                         all_day_event = 0;
 412                 }
 413
 414                 event_start = icaltime_from_webform("dtstart");
 415                 if (all_day_event) {
 416                         event_start.is_date = 1;
 417                         event_start.hour = 0;
 418                         event_start.minute = 0;
 419                         event_start.second = 0;
 420                 }
 421
 422
 423                 /* The following odd-looking snippet of code looks like it
 424                  * takes some unnecessary steps.  It is done this way because
 425                  * libical incorrectly turns an "all day event" into a normal
 426                  * event starting at midnight (i.e. it serializes as date/time
 427                  * instead of just date) unless icalvalue_new_date() is used.
 428                  * So we force it, if this is an all day event.
 429                  */
 430                 prop = icalproperty_new_dtstart(event_start);
 431                 if (all_day_event) {
 432                         icalproperty_set_value(prop,
 433                                 icalvalue_new_date(event_start)
 434                         );
 435                 }
 436
 437                 if (prop) icalcomponent_add_property(vevent, prop);
 438                 else icalproperty_free(prop);
 439
 440
 441
 442                 while (prop = icalcomponent_get_first_property(vevent,
 443                       ICAL_DTEND_PROPERTY), prop != NULL) {
 444                         icalcomponent_remove_property(vevent, prop);
 445                         icalproperty_free(prop);
 446                 }
 447                 while (prop = icalcomponent_get_first_property(vevent,
 448                       ICAL_DURATION_PROPERTY), prop != NULL) {
 449                         icalcomponent_remove_property(vevent, prop);
 450                         icalproperty_free(prop);
 451                 }
 452
 453                 if (all_day_event == 0) {
 454                         icalcomponent_add_property(vevent,
 455                                 icalproperty_new_dtend(icaltime_normalize(
 456                                         icaltime_from_webform("dtend"))
 457                                 )
 458                         );
 459                 }
 460
 461                 /* Give this event a UID if it doesn't have one. */
 462                 if (icalcomponent_get_first_property(vevent,
 463                    ICAL_UID_PROPERTY) == NULL) {
 464                         generate_new_uid(buf);
 465                         icalcomponent_add_property(vevent,
 466                                 icalproperty_new_uid(buf)
 467                         );
 468                 }
 469
 470                 /* Increment the sequence ID */
 471                 while (prop = icalcomponent_get_first_property(vevent,
 472                       ICAL_SEQUENCE_PROPERTY), (prop != NULL) ) {
 473                         i = icalproperty_get_sequence(prop);
 474                         if (i > sequence) sequence = i;
 475                         icalcomponent_remove_property(vevent, prop);
 476                         icalproperty_free(prop);
 477                 }
 478                 ++sequence;
 479                 icalcomponent_add_property(vevent,
 480                         icalproperty_new_sequence(sequence)
 481                 );
 482
 483                 /* Set the organizer, only if one does not already exist *and*
 484                  * the form is supplying one
 485                  */
 486                 strcpy(buf, bstr("organizer"));
 487                 if ( (icalcomponent_get_first_property(vevent,
 488                    ICAL_ORGANIZER_PROPERTY) == NULL)
 489                    && (strlen(buf) > 0) ) {
 490
 491                         /* set new organizer */
 492                         sprintf(organizer_string, "MAILTO:%s", buf);
 493                         icalcomponent_add_property(vevent,
 494                                 icalproperty_new_organizer(organizer_string)
 495                         );
 496
 497                 }
 498
 499                 /*
 500                  * Add any new attendees listed in the web form
 501                  */
 502
 503                 /* First, strip out the parenthesized partstats.  */
 504                 strcpy(form_attendees, bstr("attendees"));
 505                 stripout(form_attendees, '(', ')');
 506
 507                 /* Now iterate! */
 508                 for (i=0; i<num_tokens(form_attendees, ','); ++i) {
 509                         extract_token(buf, form_attendees, i, ',');
 510                         striplt(buf);
 511                         if (strlen(buf) > 0) {
 512                                 lprintf(9, "Attendee: <%s>\n", buf);
 513                                 sprintf(attendee_string, "MAILTO:%s", buf);
 514                                 foundit = 0;
 515
 516                                 for (attendee = icalcomponent_get_first_property(vevent, ICAL_ATTENDEE_PROPERTY); attendee != NULL; attendee = icalcomponent_get_next_property(vevent, ICAL_ATTENDEE_PROPERTY)) {
 517                                         if (!strcasecmp(attendee_string,
 518                                            icalproperty_get_attendee(attendee)))
 519                                                 ++foundit;
 520                                 }
 521
 522
 523                                 if (foundit == 0) {
 524                                         icalcomponent_add_property(vevent,
 525                                                 icalproperty_new_attendee(attendee_string)
 526                                         );
 527                                 }
 528                         }
 529                 }
 530
 531                 /*
 532                  * Remove any attendees *not* listed in the web form
 533                  */
 534 STARTOVER:
 535                 for (attendee = icalcomponent_get_first_property(vevent, ICAL_ATTENDEE_PROPERTY); attendee != NULL; attendee = icalcomponent_get_next_property(vevent, ICAL_ATTENDEE_PROPERTY)) {
 536                         strcpy(attendee_string, icalproperty_get_attendee(attendee));
 537                         if (!strncasecmp(attendee_string, "MAILTO:", 7)) {
 538                                 strcpy(attendee_string, &attendee_string[7]);
 539                                 striplt(attendee_string);
 540                                 foundit = 0;
 541                                 for (i=0; i<num_tokens(form_attendees, ','); ++i) {
 542                                         extract_token(buf, form_attendees, i, ',');
 543                                         striplt(buf);
 544                                         if (!strcasecmp(buf, attendee_string)) ++foundit;
 545                                 }
 546                                 if (foundit == 0) {
 547                                         icalcomponent_remove_property(vevent, attendee);
 548                                         icalproperty_free(attendee);
 549                                         goto STARTOVER;
 550                                 }
 551                         }
 552                 }
 553
 554                 /*
 555                  * Serialize it and save it to the message base
 556                  */
 557                 serv_puts("ENT0 1|||4");
 558                 serv_gets(buf);
 559                 if (buf[0] == '4') {
 560                         serv_puts("Content-type: text/calendar");
 561                         serv_puts("");
 562                         serv_puts(icalcomponent_as_ical_string(vevent));
 563                         serv_puts("000");
 564                 }
 565         }
 566
 567         /*
 568          * If the user clicked 'Delete' then delete it.
 569          */
 570         if ( (!strcasecmp(bstr("sc"), "Delete")) && (msgnum > 0L) ) {
 571                 serv_printf("DELE %ld", atol(bstr("msgnum")));
 572                 serv_gets(buf);
 573         }
 574
 575         if (created_new_vevent) {
 576                 icalcomponent_free(vevent);
 577         }
 578
 579         /* Go back to the event list */
 580         readloop("readfwd");
 581 }
 582
 583
 584 #endif /* HAVE_ICAL_H */