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