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