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