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