webcit/webcit.c

   1 /*
   2  * $Id$
   3  *
   4  * This is the main transaction loop of the web service.  It maintains a
   5  * persistent session to the Citadel server, handling HTTP WebCit requests as
   6  * they arrive and presenting a user interface.
   7  *
   8  */
   9
  10 #include <ctype.h>
  11 #include <stdlib.h>
  12 #include <unistd.h>
  13 #include <stdio.h>
  14 #include <fcntl.h>
  15 #include <signal.h>
  16 #include <sys/types.h>
  17 #include <sys/wait.h>
  18 #include <sys/socket.h>
  19 #include <sys/time.h>
  20 #include <sys/stat.h>
  21 #include <limits.h>
  22 #include <netinet/in.h>
  23 #include <netdb.h>
  24 #include <string.h>
  25 #include <pwd.h>
  26 #include <errno.h>
  27 #include <stdarg.h>
  28 #include <pthread.h>
  29 #include <signal.h>
  30 #include "webcit.h"
  31 #include "groupdav.h"
  32 #include "webserver.h"
  33 #include "mime_parser.h"
  34
  35 /*
  36  * String to unset the cookie.
  37  * Any date "in the past" will work, so I chose my birthday, right down to
  38  * the exact minute.  :)
  39  */
  40 static char *unset = "; expires=28-May-1971 18:10:00 GMT";
  41
  42 void unescape_input(char *buf)
  43 {
  44         int a, b;
  45         char hex[3];
  46
  47         while ((isspace(buf[strlen(buf) - 1])) && (strlen(buf) > 0))
  48                 buf[strlen(buf) - 1] = 0;
  49
  50         for (a = 0; a < strlen(buf); ++a) {
  51                 if (buf[a] == '+')
  52                         buf[a] = ' ';
  53                 if (buf[a] == '%') {
  54                         hex[0] = buf[a + 1];
  55                         hex[1] = buf[a + 2];
  56                         hex[2] = 0;
  57                         b = 0;
  58                         sscanf(hex, "%02x", &b);
  59                         buf[a] = (char) b;
  60                         strcpy(&buf[a + 1], &buf[a + 3]);
  61                 }
  62         }
  63
  64 }
  65
  66
  67 void addurls(char *url)
  68 {
  69         char *up, *ptr;
  70         char buf[SIZ];
  71         int a, b;
  72         struct urlcontent *u;
  73
  74         up = url;
  75         while (strlen(up) > 0) {
  76
  77                 /* locate the = sign */
  78                 safestrncpy(buf, up, sizeof buf);
  79                 b = (-1);
  80                 for (a = 255; a >= 0; --a)
  81                         if (buf[a] == '=')
  82                                 b = a;
  83                 if (b < 0)
  84                         return;
  85                 buf[b] = 0;
  86
  87                 u = (struct urlcontent *) malloc(sizeof(struct urlcontent));
  88                 u->next = WC->urlstrings;
  89                 WC->urlstrings = u;
  90                 strcpy(u->url_key, buf);
  91
  92                 /* now chop that part off */
  93                 for (a = 0; a <= b; ++a)
  94                         ++up;
  95
  96                 /* locate "&" and "?" delimiters */
  97                 ptr = up;
  98                 b = strlen(up);
  99                 for (a = 0; a < strlen(up); ++a) {
 100                         if ( (ptr[0] == '&') || (ptr[0] == '?') ) {
 101                                 b = a;
 102                                 break;
 103                         }
 104                         ++ptr;
 105                 }
 106                 ptr = up;
 107                 for (a = 0; a < b; ++a)
 108                         ++ptr;
 109                 strcpy(ptr, "");
 110
 111                 u->url_data = malloc(strlen(up) + 2);
 112                 strcpy(u->url_data, up);
 113                 u->url_data[b] = 0;
 114                 unescape_input(u->url_data);
 115                 up = ptr;
 116                 ++up;
 117         }
 118 }
 119
 120 void free_urls(void)
 121 {
 122         struct urlcontent *u;
 123
 124         while (WC->urlstrings != NULL) {
 125                 free(WC->urlstrings->url_data);
 126                 u = WC->urlstrings->next;
 127                 free(WC->urlstrings);
 128                 WC->urlstrings = u;
 129         }
 130 }
 131
 132 /*
 133  * Diagnostic function to display the contents of all variables
 134  */
 135 void dump_vars(void)
 136 {
 137         struct urlcontent *u;
 138
 139         for (u = WC->urlstrings; u != NULL; u = u->next) {
 140                 wprintf("%38s = %s\n", u->url_key, u->url_data);
 141         }
 142 }
 143
 144 char *bstr(char *key)
 145 {
 146         struct urlcontent *u;
 147
 148         for (u = WC->urlstrings; u != NULL; u = u->next) {
 149                 if (!strcasecmp(u->url_key, key))
 150                         return (u->url_data);
 151         }
 152         return ("");
 153 }
 154
 155
 156 void wprintf(const char *format,...)
 157 {
 158         va_list arg_ptr;
 159         char wbuf[4096];
 160
 161         va_start(arg_ptr, format);
 162         vsnprintf(wbuf, sizeof wbuf, format, arg_ptr);
 163         va_end(arg_ptr);
 164
 165         client_write(wbuf, strlen(wbuf));
 166 }
 167
 168
 169 /*
 170  * wDumpContent() wraps up an HTTP session, closes tags, etc.
 171  *
 172  * print_standard_html_footer should be set to 0 to transmit only, 1 to
 173  * append the main menu and closing tags, or 2 to
 174  * append the closing tags only.
 175  */
 176 void wDumpContent(int print_standard_html_footer)
 177 {
 178         if (print_standard_html_footer) {
 179                 wprintf("</DIV>\n");    /* end of "text" div */
 180                 do_template("trailing");
 181         }
 182
 183         /* If we've been saving it all up for one big output burst,
 184          * go ahead and do that now.
 185          */
 186         end_burst();
 187 }
 188
 189
 190 /*
 191  * Copy a string, escaping characters which have meaning in HTML.  If
 192  * nbsp is nonzero, spaces are converted to non-breaking spaces.
 193  */
 194 void stresc(char *target, char *strbuf, int nbsp, int nolinebreaks)
 195 {
 196         int a;
 197         strcpy(target, "");
 198
 199         for (a = 0; a < strlen(strbuf); ++a) {
 200                 if (strbuf[a] == '<')
 201                         strcat(target, "&lt;");
 202                 else if (strbuf[a] == '>')
 203                         strcat(target, "&gt;");
 204                 else if (strbuf[a] == '&')
 205                         strcat(target, "&amp;");
 206                 else if (strbuf[a] == '\"')
 207                         strcat(target, "&quot;");
 208                 else if (strbuf[a] == '\'')
 209                         strcat(target, "&#39;");
 210                 else if (strbuf[a] == LB)
 211                         strcat(target, "<");
 212                 else if (strbuf[a] == RB)
 213                         strcat(target, ">");
 214                 else if (strbuf[a] == QU)
 215                         strcat(target, "\"");
 216                 else if ((strbuf[a] == 32) && (nbsp == 1))
 217                         strcat(target, "&nbsp;");
 218                 else if ((strbuf[a] == '\n') && (nolinebreaks))
 219                         strcat(target, "");     /* nothing */
 220                 else if ((strbuf[a] == '\r') && (nolinebreaks))
 221                         strcat(target, "");     /* nothing */
 222                 else
 223                         strncat(target, &strbuf[a], 1);
 224         }
 225 }
 226
 227 void escputs1(char *strbuf, int nbsp, int nolinebreaks)
 228 {
 229         char *buf;
 230
 231         if (strbuf == NULL) return;
 232         buf = malloc( (3 * strlen(strbuf)) + SIZ );
 233         stresc(buf, strbuf, nbsp, nolinebreaks);
 234         wprintf("%s", buf);
 235         free(buf);
 236 }
 237
 238 void escputs(char *strbuf)
 239 {
 240         escputs1(strbuf, 0, 0);
 241 }
 242
 243 /*
 244  * Escape a string for feeding out as a URL.
 245  * Returns a pointer to a buffer that must be freed by the caller!
 246  */
 247 void urlesc(char *outbuf, char *strbuf)
 248 {
 249         int a, b, c;
 250         char *ec = " #&;`'|*?-~<>^()[]{}$\\";
 251
 252         strcpy(outbuf, "");
 253
 254         for (a = 0; a < strlen(strbuf); ++a) {
 255                 c = 0;
 256                 for (b = 0; b < strlen(ec); ++b) {
 257                         if (strbuf[a] == ec[b])
 258                                 c = 1;
 259                 }
 260                 b = strlen(outbuf);
 261                 if (c == 1)
 262                         sprintf(&outbuf[b], "%%%02x", strbuf[a]);
 263                 else
 264                         sprintf(&outbuf[b], "%c", strbuf[a]);
 265         }
 266 }
 267
 268 void urlescputs(char *strbuf)
 269 {
 270         char outbuf[SIZ];
 271
 272         urlesc(outbuf, strbuf);
 273         wprintf("%s", outbuf);
 274 }
 275
 276
 277 /*
 278  * Copy a string, escaping characters for JavaScript strings.
 279  */
 280 void jsesc(char *target, char *strbuf)
 281 {
 282         int a;
 283         strcpy(target, "");
 284
 285         for (a = 0; a < strlen(strbuf); ++a) {
 286                 if (strbuf[a] == '<')
 287                         strcat(target, "[");
 288                 else if (strbuf[a] == '>')
 289                         strcat(target, "]");
 290                 else if (strbuf[a] == '\"')
 291                         strcat(target, "&quot;");
 292                 else if (strbuf[a] == '&')
 293                         strcat(target, "&amp;;");
 294                 else if (strbuf[a] == '\'')
 295                         strcat(target, "\\'");
 296                 else {
 297                         strncat(target, &strbuf[a], 1);
 298                 }
 299         }
 300 }
 301
 302 void jsescputs(char *strbuf)
 303 {
 304         char outbuf[SIZ];
 305
 306         jsesc(outbuf, strbuf);
 307         wprintf("%s", outbuf);
 308 }
 309
 310 /*
 311  * Copy a string, escaping characters for message text hold
 312  */
 313 void msgesc(char *target, char *strbuf)
 314 {
 315         int a;
 316         strcpy(target, "");
 317
 318         for (a = 0; a < strlen(strbuf); ++a) {
 319                 if (strbuf[a] == '\'')
 320                         strcat(target, "\\'");
 321                 else if (strbuf[a] == '\n')
 322                         strcat(target, " ");
 323                 else if (strbuf[a] == '\r')
 324                         strcat(target, " ");
 325                 else {
 326                         strncat(target, &strbuf[a], 1);
 327                 }
 328         }
 329 }
 330
 331 void msgescputs(char *strbuf) {
 332         char *outbuf;
 333
 334         if (strbuf == NULL) return;
 335         outbuf = malloc( (3 * strlen(strbuf)) + SIZ);
 336         msgesc(outbuf, strbuf);
 337         wprintf("%s", outbuf);
 338         free(outbuf);
 339 }
 340
 341
 342
 343
 344 /*
 345  * Output all that important stuff that the browser will want to see
 346  */
 347 void output_headers(    int do_httpheaders,     /* 1 = output HTTP headers                          */
 348                         int do_htmlhead,        /* 1 = output HTML <head> section and <body> opener */
 349
 350                         int do_room_banner,     /* 0=no, 1=yes,                                     */
 351                                                 /* 2 = I'm going to embed my own, so don't open the */
 352                                                 /*     <div id="content"> either.                   */
 353
 354                         int unset_cookies,      /* 1 = session is terminating, so unset the cookies */
 355                         int refresh30,          /* 1 = automatically refresh page every 30 seconds  */
 356                         int suppress_check,     /* 1 = suppress check for instant messages          */
 357                         int cache               /* 1 = allow browser to cache this page             */
 358 ) {
 359         char cookie[SIZ];
 360         char httpnow[SIZ];
 361
 362         wprintf("HTTP/1.0 200 OK\n");
 363         httpdate(httpnow, time(NULL));
 364
 365         if (do_httpheaders) {
 366                 wprintf("Content-type: text/html\r\n"
 367                         "Server: %s / %s\n"
 368                         "Connection: close\r\n",
 369                         SERVER, serv_info.serv_software
 370                 );
 371         }
 372
 373         if (cache) {
 374                 wprintf("Pragma: public\r\n"
 375                         "Cache-Control: max-age=3600, must-revalidate\r\n"
 376                         "Last-modified: %s\r\n",
 377                         httpnow
 378                 );
 379         }
 380         else {
 381                 wprintf("Pragma: no-cache\r\n"
 382                         "Cache-Control: no-store\r\n"
 383                 );
 384         }
 385
 386         stuff_to_cookie(cookie, WC->wc_session, WC->wc_username,
 387                         WC->wc_password, WC->wc_roomname);
 388
 389         if (unset_cookies) {
 390                 wprintf("Set-cookie: webcit=%s; path=/\r\n", unset);
 391         } else {
 392                 wprintf("Set-cookie: webcit=%s; path=/\r\n", cookie);
 393                 if (server_cookie != NULL) {
 394                         wprintf("%s\n", server_cookie);
 395                 }
 396         }
 397
 398         if (do_htmlhead) {
 399                 /* wprintf("\n"); */
 400                 begin_burst();
 401
 402                 if (refresh30) {
 403                         svprintf("REFRESHTAG", WCS_STRING, "%s",
 404                                 "<meta http-equiv=\"refresh\" content=\"30\" />\n");
 405                 }
 406                 else {
 407                         svprintf("REFRESHTAG", WCS_STRING, "%s",
 408                                 "<meta http-equiv=\"refresh\" content=\"500363689;\" />\n");
 409                 }
 410
 411                 do_template("head");
 412         }
 413
 414         /* ICONBAR */
 415         if (do_htmlhead) {
 416
 417                 if (WC->HaveInstantMessages) {
 418                         wprintf("<div id=\"page_popup\">\n");
 419                         page_popup();
 420                         wprintf("</div>\n");
 421                 }
 422                 if ( (WC->logged_in) && (!unset_cookies) ) {
 423                         wprintf("<div id=\"iconbar\">");
 424                         do_iconbar();
 425                         wprintf("</div>\n");
 426                 }
 427                 if (do_room_banner == 1) {
 428                         wprintf("<div id=\"banner\">\n");
 429                         embed_room_banner(NULL, navbar_default);
 430                         wprintf("</div>\n");
 431                 }
 432         }
 433
 434         if (do_room_banner == 1) {
 435                 wprintf("<div id=\"content\">\n");
 436
 437                 if (strlen(WC->ImportantMessage) > 0) {
 438                         wprintf("<div id=\"fix_scrollbar_bug\">\n");
 439                         do_template("beginbox_nt");
 440                         wprintf("<SPAN CLASS=\"errormsg\">"
 441                                 "%s</SPAN><br />\n", WC->ImportantMessage);
 442                         do_template("endbox");
 443                         wprintf("</div>\n");
 444                         strcpy(WC->ImportantMessage, "");
 445                 }
 446
 447         }
 448 }
 449
 450
 451 /*
 452  * Generic function to do an HTTP redirect.  Easy and fun.
 453  */
 454 void http_redirect(char *whichpage) {
 455         wprintf("HTTP/1.0 302 Moved Temporarily\n");
 456         wprintf("Location: %s\r\n", whichpage);
 457         wprintf("URI: %s\r\n", whichpage);
 458         wprintf("Content-type: text/html\r\n\r\n");
 459         wprintf("<html><body>\n");
 460         wprintf("you really want to be <A HREF=\"%s\">here</A> now\n",
 461                 whichpage);
 462         wprintf("</body></html>\n");
 463 }
 464
 465
 466
 467 void check_for_instant_messages()
 468 {
 469         char buf[SIZ];
 470
 471         serv_puts("NOOP");
 472         serv_gets(buf);
 473         if (buf[3] == '*') WC->HaveInstantMessages = 1;
 474 }
 475
 476
 477
 478
 479 /*
 480  * Output a piece of content to the web browser
 481  */
 482 void http_transmit_thing(char *thing, size_t length, char *content_type,
 483                          int is_static) {
 484
 485         output_headers(0, 0, 0, 0, 0, 0, is_static);
 486
 487         wprintf("Content-type: %s\r\n"
 488                 "Server: %s\r\n"
 489                 "Connection: close\r\n",
 490                 content_type,
 491                 SERVER);
 492
 493 #ifdef HAVE_ZLIB
 494         /* If we can send the data out compressed, please do so. */
 495         if (WC->gzip_ok) {
 496                 char *compressed_data = NULL;
 497                 uLongf compressed_len;
 498
 499                 compressed_len = (uLongf) ((length * 101) / 100) + 100;
 500                 compressed_data = malloc(compressed_len);
 501
 502                 if (compress_gzip((Bytef *) compressed_data,
 503                                   &compressed_len,
 504                                   (Bytef *) thing,
 505                                   (uLongf) length, Z_BEST_SPEED) == Z_OK) {
 506                         wprintf("Content-encoding: gzip\r\n"
 507                                 "Content-length: %ld\r\n"
 508                                 "\r\n",
 509                                 (long) compressed_len
 510                         );
 511                         client_write(compressed_data, (size_t)compressed_len);
 512                         free(compressed_data);
 513                         return;
 514                 }
 515         }
 516 #endif
 517
 518         /* No compression ... just send it out as-is */
 519         wprintf("Content-length: %ld\r\n"
 520                 "\r\n",
 521                 (long) length
 522         );
 523         client_write(thing, (size_t)length);
 524 }
 525
 526
 527
 528
 529 void output_static(char *what)
 530 {
 531         char buf[4096];
 532         FILE *fp;
 533         struct stat statbuf;
 534         off_t bytes;
 535         char *bigbuffer;
 536         char content_type[SIZ];
 537
 538         sprintf(buf, "static/%s", what);
 539         fp = fopen(buf, "rb");
 540         if (fp == NULL) {
 541                 wprintf("HTTP/1.0 404 %s\n", strerror(errno));
 542                 wprintf("Content-Type: text/plain\r\n");
 543                 wprintf("\r\n");
 544                 wprintf("Cannot open %s: %s\n", what, strerror(errno));
 545         } else {
 546                 if (!strncasecmp(&what[strlen(what) - 4], ".gif", 4))
 547                         strcpy(content_type, "image/gif");
 548                 else if (!strncasecmp(&what[strlen(what) - 4], ".txt", 4))
 549                         strcpy(content_type, "text/plain");
 550                 else if (!strncasecmp(&what[strlen(what) - 4], ".css", 4))
 551                         strcpy(content_type, "text/css");
 552                 else if (!strncasecmp(&what[strlen(what) - 4], ".jpg", 4))
 553                         strcpy(content_type, "image/jpeg");
 554                 else if (!strncasecmp(&what[strlen(what) - 4], ".png", 4))
 555                         strcpy(content_type, "image/png");
 556                 else if (!strncasecmp(&what[strlen(what) - 4], ".ico", 4))
 557                         strcpy(content_type, "image/x-icon");
 558                 else if (!strncasecmp(&what[strlen(what) - 5], ".html", 5))
 559                         strcpy(content_type, "text/html");
 560                 else if (!strncasecmp(&what[strlen(what) - 4], ".htm", 4))
 561                         strcpy(content_type, "text/html");
 562                 else if (!strncasecmp(&what[strlen(what) - 4], ".wml", 4))
 563                         strcpy(content_type, "text/vnd.wap.wml");
 564                 else if (!strncasecmp(&what[strlen(what) - 5], ".wmls", 5))
 565                         strcpy(content_type, "text/vnd.wap.wmlscript");
 566                 else if (!strncasecmp(&what[strlen(what) - 5], ".wmlc", 5))
 567                         strcpy(content_type, "application/vnd.wap.wmlc");
 568                 else if (!strncasecmp(&what[strlen(what) - 6], ".wmlsc", 6))
 569                         strcpy(content_type, "application/vnd.wap.wmlscriptc");
 570                 else if (!strncasecmp(&what[strlen(what) - 5], ".wbmp", 5))
 571                         strcpy(content_type, "image/vnd.wap.wbmp");
 572                 else if (!strncasecmp(&what[strlen(what) - 3], ".js", 3))
 573                         strcpy(content_type, "text/javascript");
 574                 else
 575                         strcpy(content_type, "application/octet-stream");
 576
 577                 fstat(fileno(fp), &statbuf);
 578                 bytes = statbuf.st_size;
 579                 /* lprintf(3, "Static: %s, (%s; %ld bytes)\r\n",
 580                         what, content_type, bytes); */
 581                 bigbuffer = malloc(bytes + 2);
 582                 fread(bigbuffer, bytes, 1, fp);
 583                 fclose(fp);
 584
 585                 http_transmit_thing(bigbuffer, (size_t)bytes, content_type, 1);
 586                 free(bigbuffer);
 587         }
 588         if (!strcasecmp(bstr("force_close_session"), "yes")) {
 589                 end_webcit_session();
 590         }
 591 }
 592
 593
 594 /*
 595  * When the browser requests an image file from the Citadel server,
 596  * this function is called to transmit it.
 597  */
 598 void output_image()
 599 {
 600         char buf[SIZ];
 601         char *xferbuf = NULL;
 602         off_t bytes;
 603
 604         serv_printf("OIMG %s|%s", bstr("name"), bstr("parm"));
 605         serv_gets(buf);
 606         if (buf[0] == '2') {
 607                 bytes = extract_long(&buf[4], 0);
 608                 xferbuf = malloc(bytes + 2);
 609
 610                 /* Read it from the server */
 611                 read_server_binary(xferbuf, bytes);
 612                 serv_puts("CLOS");
 613                 serv_gets(buf);
 614
 615                 /* Write it to the browser */
 616                 http_transmit_thing(xferbuf, (size_t)bytes, "image/gif", 0);
 617                 free(xferbuf);
 618
 619         } else {
 620
 621                 /* Instead of an ugly 404, send a 1x1 transparent GIF
 622                  * when there's no such image on the server.
 623                  */
 624                 output_static("blank.gif");
 625
 626                 /*
 627                 wprintf("HTTP/1.0 404 %s\n", &buf[4]);
 628                 output_headers(0, 0, 0, 0, 0, 0, 0);
 629                 wprintf("Content-Type: text/plain\r\n"
 630                         "\r\n"
 631                         "Error retrieving image: %s\n",
 632                         &buf[4]
 633                 );
 634                 */
 635
 636         }
 637
 638
 639
 640 }
 641
 642 /*
 643  */
 644 void output_mimepart()
 645 {
 646         char buf[SIZ];
 647         off_t bytes;
 648         char content_type[SIZ];
 649         char *content = NULL;
 650
 651         serv_printf("OPNA %s|%s", bstr("msgnum"), bstr("partnum"));
 652         serv_gets(buf);
 653         if (buf[0] == '2') {
 654                 bytes = extract_long(&buf[4], 0);
 655                 content = malloc(bytes + 2);
 656                 extract_token(content_type, &buf[4], 3, '|', sizeof content_type);
 657                 output_headers(0, 0, 0, 0, 0, 0, 0);
 658                 read_server_binary(content, bytes);
 659                 serv_puts("CLOS");
 660                 serv_gets(buf);
 661                 http_transmit_thing(content, bytes, content_type, 0);
 662                 free(content);
 663         } else {
 664                 wprintf("HTTP/1.0 404 %s\n", &buf[4]);
 665                 output_headers(0, 0, 0, 0, 0, 0, 0);
 666                 wprintf("Content-Type: text/plain\r\n");
 667                 wprintf("\r\n");
 668                 wprintf("Error retrieving part: %s\n", &buf[4]);
 669         }
 670
 671 }
 672
 673
 674 /*
 675  */
 676 char *load_mimepart(long msgnum, char *partnum)
 677 {
 678         char buf[SIZ];
 679         off_t bytes;
 680         char content_type[SIZ];
 681         char *content;
 682
 683         serv_printf("OPNA %ld|%s", msgnum, partnum);
 684         serv_gets(buf);
 685         if (buf[0] == '2') {
 686                 bytes = extract_long(&buf[4], 0);
 687                 extract_token(content_type, &buf[4], 3, '|', sizeof content_type);
 688
 689                 content = malloc(bytes + 2);
 690                 read_server_binary(content, bytes);
 691
 692                 serv_puts("CLOS");
 693                 serv_gets(buf);
 694                 content[bytes] = 0;     /* null terminate for good measure */
 695                 return(content);
 696         }
 697         else {
 698                 return(NULL);
 699         }
 700
 701 }
 702
 703
 704 /*
 705  * Convenience functions to display a page containing only a string
 706  */
 707 void convenience_page(char *titlebarcolor, char *titlebarmsg, char *messagetext)
 708 {
 709         wprintf("HTTP/1.0 200 OK\n");
 710         output_headers(1, 1, 2, 0, 0, 0, 0);
 711         wprintf("<div id=\"banner\">\n");
 712         wprintf("<TABLE WIDTH=100%% BORDER=0 BGCOLOR=\"#%s\"><TR><TD>", titlebarcolor);
 713         wprintf("<SPAN CLASS=\"titlebar\">%s</SPAN>\n", titlebarmsg);
 714         wprintf("</TD></TR></TABLE>\n");
 715         wprintf("</div>\n<div id=\"content\">\n");
 716         escputs(messagetext);
 717
 718         wprintf("<hr />\n");
 719         wDumpContent(1);
 720 }
 721
 722
 723 /*
 724  * Display a blank page.
 725  */
 726 void blank_page(void) {
 727         output_headers(1, 1, 0, 0, 1, 0, 0);
 728         wDumpContent(2);
 729 }
 730
 731
 732 /*
 733  * A template has been requested
 734  */
 735 void url_do_template(void) {
 736         do_template(bstr("template"));
 737 }
 738
 739
 740
 741 /*
 742  * Offer to make any page the user's "start page."
 743  */
 744 void offer_start_page(void) {
 745         wprintf("<A HREF=\"/change_start_page?startpage=");
 746         urlescputs(WC->this_page);
 747         wprintf("\">"
 748                 "<FONT SIZE=-2 COLOR=\"#AAAAAA\">Make this my start page</FONT>"
 749                 "</A>"
 750         );
 751 }
 752
 753
 754 /*
 755  * Change the user's start page
 756  */
 757 void change_start_page(void) {
 758
 759         if (bstr("startpage") == NULL) {
 760                 strcpy(WC->ImportantMessage,
 761                         "startpage set to null");
 762                 display_main_menu();
 763                 return;
 764         }
 765
 766         set_preference("startpage", bstr("startpage"));
 767
 768         output_headers(1, 1, 0, 0, 0, 0, 0);
 769         do_template("newstartpage");
 770         wDumpContent(1);
 771 }
 772
 773
 774
 775
 776 void display_success(char *successmessage)
 777 {
 778         convenience_page("007700", "OK", successmessage);
 779 }
 780
 781
 782
 783 void extract_action(char *actbuf, char *cmdbuf)
 784 {
 785         int i;
 786
 787         strcpy(actbuf, cmdbuf);
 788
 789         /*
 790          * First strip out the http method
 791          */
 792         remove_token(actbuf, 0, ' ');
 793         if (actbuf[0] == ' ') strcpy(actbuf, &actbuf[1]);
 794         if (actbuf[0] == '/') strcpy(actbuf, &actbuf[1]);
 795
 796         /*
 797          * Now kill invalid (for webcit) characters
 798          */
 799         for (i = 0; i < strlen(actbuf); ++i) {
 800                 if (actbuf[i] == ' ') {
 801                         actbuf[i] = 0;
 802                         i = 0;
 803                 }
 804                 if (actbuf[i] == '/') {
 805                         actbuf[i] = 0;
 806                         i = 0;
 807                 }
 808                 if (actbuf[i] == '?') {
 809                         actbuf[i] = 0;
 810                         i = 0;
 811                 }
 812                 if (actbuf[i] == '&') {
 813                         actbuf[i] = 0;
 814                         i = 0;
 815                 }
 816         }
 817 }
 818
 819
 820 void upload_handler(char *name, char *filename, char *partnum, char *disp,
 821                         void *content, char *cbtype, size_t length,
 822                         char *encoding, void *userdata)
 823 {
 824         struct urlcontent *u;
 825
 826         /* Form fields */
 827         if ( (length > 0) && (strlen(cbtype) == 0) ) {
 828                 u = (struct urlcontent *) malloc(sizeof(struct urlcontent));
 829                 u->next = WC->urlstrings;
 830                 WC->urlstrings = u;
 831                 safestrncpy(u->url_key, name, sizeof(u->url_key));
 832                 u->url_data = malloc(length + 1);
 833                 memcpy(u->url_data, content, length);
 834                 u->url_data[length] = 0;
 835         }
 836
 837         /* Uploaded files */
 838         if ( (length > 0) && (strlen(cbtype) > 0) ) {
 839                 WC->upload = malloc(length);
 840                 if (WC->upload != NULL) {
 841                         WC->upload_length = length;
 842                         safestrncpy(WC->upload_filename, filename,
 843                                         sizeof(WC->upload_filename));
 844                         safestrncpy(WC->upload_content_type, cbtype,
 845                                         sizeof(WC->upload_content_type));
 846                         memcpy(WC->upload, content, length);
 847                 }
 848                 else {
 849                         lprintf(3, "malloc() failed: %s\n", strerror(errno));
 850                 }
 851         }
 852
 853 }
 854
 855
 856
 857
 858 /*
 859  * Entry point for WebCit transaction
 860  */
 861 void session_loop(struct httprequest *req)
 862 {
 863         char cmd[SIZ];
 864         char method[SIZ];
 865         char action[SIZ];
 866         char buf[SIZ];
 867         int a, b;
 868         int ContentLength = 0;
 869         int BytesRead = 0;
 870         char ContentType[512];
 871         char *content = NULL;
 872         char *content_end = NULL;
 873         struct httprequest *hptr;
 874         char browser_host[SIZ];
 875         char user_agent[SIZ];
 876         int body_start = 0;
 877
 878         /* We stuff these with the values coming from the client cookies,
 879          * so we can use them to reconnect a timed out session if we have to.
 880          */
 881         char c_username[SIZ];
 882         char c_password[SIZ];
 883         char c_roomname[SIZ];
 884         char c_httpauth_string[SIZ];
 885         char c_httpauth_user[SIZ];
 886         char c_httpauth_pass[SIZ];
 887         char cookie[SIZ];
 888
 889         strcpy(c_username, "");
 890         strcpy(c_password, "");
 891         strcpy(c_roomname, "");
 892         strcpy(c_httpauth_string, "");
 893         strcpy(c_httpauth_user, DEFAULT_HTTPAUTH_USER);
 894         strcpy(c_httpauth_pass, DEFAULT_HTTPAUTH_PASS);
 895
 896         WC->upload_length = 0;
 897         WC->upload = NULL;
 898         WC->vars = NULL;
 899
 900         WC->is_wap = 0;
 901
 902         hptr = req;
 903         if (hptr == NULL) return;
 904
 905         strcpy(cmd, hptr->line);
 906         hptr = hptr->next;
 907         extract_token(method, cmd, 0, ' ', sizeof method);
 908         extract_action(action, cmd);
 909
 910         while (hptr != NULL) {
 911                 strcpy(buf, hptr->line);
 912                 hptr = hptr->next;
 913
 914                 if (!strncasecmp(buf, "Cookie: webcit=", 15)) {
 915                         safestrncpy(cookie, &buf[15], sizeof cookie);
 916                         cookie_to_stuff(cookie, NULL,
 917                                         c_username, sizeof c_username,
 918                                         c_password, sizeof c_password,
 919                                         c_roomname, sizeof c_roomname);
 920                 }
 921                 else if (!strncasecmp(buf, "Authorization: Basic ", 21)) {
 922                         CtdlDecodeBase64(c_httpauth_string, &buf[21], strlen(&buf[21]));
 923                         extract_token(c_httpauth_user, c_httpauth_string, 0, ':', sizeof c_httpauth_user);
 924                         extract_token(c_httpauth_pass, c_httpauth_string, 1, ':', sizeof c_httpauth_pass);
 925                 }
 926                 else if (!strncasecmp(buf, "Content-length: ", 16)) {
 927                         ContentLength = atoi(&buf[16]);
 928                 }
 929                 else if (!strncasecmp(buf, "Content-type: ", 14)) {
 930                         safestrncpy(ContentType, &buf[14], sizeof ContentType);
 931                 }
 932                 else if (!strncasecmp(buf, "User-agent: ", 12)) {
 933                         safestrncpy(user_agent, &buf[12], sizeof user_agent);
 934                 }
 935                 else if (!strncasecmp(buf, "Host: ", 6)) {
 936                         safestrncpy(WC->http_host, &buf[6], sizeof WC->http_host);
 937                 }
 938                 /* Only WAP gateways explicitly name this content-type */
 939                 else if (strstr(buf, "text/vnd.wap.wml")) {
 940                         WC->is_wap = 1;
 941                 }
 942         }
 943
 944         if (ContentLength > 0) {
 945                 content = malloc(ContentLength + SIZ);
 946                 memset(content, 0, ContentLength + SIZ);
 947                 sprintf(content, "Content-type: %s\n"
 948                                 "Content-length: %d\n\n",
 949                                 ContentType, ContentLength);
 950                 body_start = strlen(content);
 951
 952                 /* Be daring and read it all at once. */
 953                 client_read(WC->http_sock, &content[BytesRead+body_start],
 954                         ContentLength);
 955
 956                 if (!strncasecmp(ContentType,
 957                               "application/x-www-form-urlencoded", 33)) {
 958                         addurls(&content[body_start]);
 959                 } else if (!strncasecmp(ContentType, "multipart", 9)) {
 960                         content_end = content + ContentLength + body_start;
 961                         mime_parser(content, content_end, *upload_handler,
 962                                         NULL, NULL, NULL, 0);
 963                 }
 964         } else {
 965                 content = NULL;
 966         }
 967
 968         /* make a note of where we are in case the user wants to save it */
 969         safestrncpy(WC->this_page, cmd, sizeof(WC->this_page));
 970         remove_token(WC->this_page, 2, ' ');
 971         remove_token(WC->this_page, 0, ' ');
 972
 973         /* If there are variables in the URL, we must grab them now */
 974         for (a = 0; a < strlen(cmd); ++a) {
 975                 if ((cmd[a] == '?') || (cmd[a] == '&')) {
 976                         for (b = a; b < strlen(cmd); ++b)
 977                                 if (isspace(cmd[b]))
 978                                         cmd[b] = 0;
 979                         addurls(&cmd[a + 1]);
 980                         cmd[a] = 0;
 981                 }
 982         }
 983
 984         /* Static content can be sent without connecting to Citadel. */
 985         if (!strcasecmp(action, "static")) {
 986                 strcpy(buf, &cmd[12]);
 987                 for (a = 0; a < strlen(buf); ++a)
 988                         if (isspace(buf[a]))
 989                                 buf[a] = 0;
 990                 output_static(buf);
 991                 goto SKIP_ALL_THIS_CRAP;        /* Don't try to connect */
 992         }
 993
 994         /*
 995          * If we're not connected to a Citadel server, try to hook up the
 996          * connection now.
 997          */
 998         if (!WC->connected) {
 999                 if (!strcasecmp(ctdlhost, "uds")) {
1000                         /* unix domain socket */
1001                         sprintf(buf, "%s/citadel.socket", ctdlport);
1002                         WC->serv_sock = uds_connectsock(buf);
1003                 }
1004                 else {
1005                         /* tcp socket */
1006                         WC->serv_sock = tcp_connectsock(ctdlhost, ctdlport);
1007                 }
1008
1009                 if (WC->serv_sock < 0) {
1010                         do_logout();
1011                         goto SKIP_ALL_THIS_CRAP;
1012                 }
1013                 else {
1014                         WC->connected = 1;
1015                         serv_gets(buf); /* get the server welcome message */
1016                         locate_host(browser_host, WC->http_sock);
1017                         get_serv_info(browser_host, user_agent);
1018                         if (serv_info.serv_rev_level < MINIMUM_CIT_VERSION) {
1019                                 wprintf("You are connected to a Citadel "
1020                                         "server running Citadel %d.%02d;\nin "
1021                                         "order to run this version of WebCit "
1022                                         "you must also have Citadel %d.%02d or"
1023                                         " newer.\n\n\n",
1024                                                 serv_info.serv_rev_level / 100,
1025                                                 serv_info.serv_rev_level % 100,
1026                                                 MINIMUM_CIT_VERSION / 100,
1027                                                 MINIMUM_CIT_VERSION % 100
1028                                         );
1029                                 end_webcit_session();
1030                                 goto SKIP_ALL_THIS_CRAP;
1031                         }
1032                 }
1033         }
1034
1035         /*
1036          * Functions which can be performed without logging in
1037          */
1038         if (!strcasecmp(action, "listsub")) {
1039                 do_listsub();
1040                 goto SKIP_ALL_THIS_CRAP;
1041         }
1042 #ifdef WEBCIT_WITH_CALENDAR_SERVICE
1043         if (!strcasecmp(action, "freebusy")) {
1044                 do_freebusy(cmd);
1045                 goto SKIP_ALL_THIS_CRAP;
1046         }
1047 #endif
1048
1049         /*
1050          * If we're not logged in, but we have HTTP Authentication data,
1051          * try logging in to Citadel using that.
1052          */
1053         if ((!WC->logged_in)
1054            && (strlen(c_httpauth_user) > 0)
1055            && (strlen(c_httpauth_pass) > 0)) {
1056                 serv_printf("USER %s", c_httpauth_user);
1057                 serv_gets(buf);
1058                 if (buf[0] == '3') {
1059                         serv_printf("PASS %s", c_httpauth_pass);
1060                         serv_gets(buf);
1061                         if (buf[0] == '2') {
1062                                 become_logged_in(c_httpauth_user,
1063                                                 c_httpauth_pass, buf);
1064                                 strcpy(WC->httpauth_user, c_httpauth_user);
1065                                 strcpy(WC->httpauth_pass, c_httpauth_pass);
1066                         }
1067                 }
1068         }
1069
1070         /*
1071          * The GroupDAV stuff relies on HTTP authentication instead of
1072          * our session's authentication.
1073          */
1074         if (!strncasecmp(action, "groupdav", 8)) {
1075                 groupdav_main(req, ContentType, /* do GroupDAV methods */
1076                         ContentLength, content+body_start);
1077                 if (!WC->logged_in) {
1078                         WC->killthis = 1;       /* If not logged in, don't */
1079                 }                               /* keep the session active */
1080                 goto SKIP_ALL_THIS_CRAP;
1081         }
1082
1083
1084         /*
1085          * If this isn't a GroupDAV session, it's an ordinary browser
1086          * connecting to the user interface.  Only allow GET and POST
1087          * methods.
1088          */
1089         if ((strcasecmp(method, "GET")) && (strcasecmp(method, "POST"))) {
1090                 wprintf("HTTP/1.1 405 Method Not Allowed\r\n");
1091                 groupdav_common_headers();
1092                 wprintf("Content-Length: 0\r\n\r\n");
1093                 goto SKIP_ALL_THIS_CRAP;
1094         }
1095
1096         /*
1097          * If we're not logged in, but we have username and password cookies
1098          * supplied by the browser, try using them to log in.
1099          */
1100         if ((!WC->logged_in)
1101            && (strlen(c_username) > 0)
1102            && (strlen(c_password) > 0)) {
1103                 serv_printf("USER %s", c_username);
1104                 serv_gets(buf);
1105                 if (buf[0] == '3') {
1106                         serv_printf("PASS %s", c_password);
1107                         serv_gets(buf);
1108                         if (buf[0] == '2') {
1109                                 become_logged_in(c_username, c_password, buf);
1110                         }
1111                 }
1112         }
1113         /*
1114          * If we don't have a current room, but a cookie specifying the
1115          * current room is supplied, make an effort to go there.
1116          */
1117         if ((strlen(WC->wc_roomname) == 0) && (strlen(c_roomname) > 0)) {
1118                 serv_printf("GOTO %s", c_roomname);
1119                 serv_gets(buf);
1120                 if (buf[0] == '2') {
1121                         strcpy(WC->wc_roomname, c_roomname);
1122                 }
1123         }
1124
1125         /*
1126          * If there are instant messages waiting, retrieve them for display.
1127          */
1128         check_for_instant_messages();
1129
1130         if (!strcasecmp(action, "image")) {
1131                 output_image();
1132
1133         /*
1134          * All functions handled below this point ... make sure we log in
1135          * before doing anything else!
1136          */
1137         } else if ((!WC->logged_in) && (!strcasecmp(action, "login"))) {
1138                 do_login();
1139         } else if (!WC->logged_in) {
1140                 display_login(NULL);
1141         }
1142
1143         /*
1144          * Various commands...
1145          */
1146
1147         else if (!strcasecmp(action, "do_welcome")) {
1148                 do_welcome();
1149         } else if (!strcasecmp(action, "blank")) {
1150                 blank_page();
1151         } else if (!strcasecmp(action, "do_template")) {
1152                 url_do_template();
1153         } else if (!strcasecmp(action, "display_aide_menu")) {
1154                 display_aide_menu();
1155         } else if (!strcasecmp(action, "display_main_menu")) {
1156                 display_main_menu();
1157         } else if (!strcasecmp(action, "whobbs")) {
1158                 whobbs();
1159         } else if (!strcasecmp(action, "knrooms")) {
1160                 knrooms();
1161         } else if (!strcasecmp(action, "gotonext")) {
1162                 slrp_highest();
1163                 gotonext();
1164         } else if (!strcasecmp(action, "skip")) {
1165                 gotonext();
1166         } else if (!strcasecmp(action, "ungoto")) {
1167                 ungoto();
1168         } else if (!strcasecmp(action, "dotgoto")) {
1169                 slrp_highest();
1170                 smart_goto(bstr("room"));
1171         } else if (!strcasecmp(action, "dotskip")) {
1172                 smart_goto(bstr("room"));
1173         } else if (!strcasecmp(action, "termquit")) {
1174                 do_logout();
1175         } else if (!strcasecmp(action, "readnew")) {
1176                 readloop("readnew");
1177         } else if (!strcasecmp(action, "readold")) {
1178                 readloop("readold");
1179         } else if (!strcasecmp(action, "readfwd")) {
1180                 readloop("readfwd");
1181         } else if (!strcasecmp(action, "headers")) {
1182                 readloop("headers");
1183         } else if (!strcasecmp(action, "display_enter")) {
1184                 display_enter();
1185         } else if (!strcasecmp(action, "post")) {
1186                 post_message();
1187         } else if (!strcasecmp(action, "move_msg")) {
1188                 move_msg();
1189         } else if (!strcasecmp(action, "delete_msg")) {
1190                 delete_msg();
1191         } else if (!strcasecmp(action, "userlist")) {
1192                 userlist();
1193         } else if (!strcasecmp(action, "showuser")) {
1194                 showuser();
1195         } else if (!strcasecmp(action, "display_page")) {
1196                 display_page();
1197         } else if (!strcasecmp(action, "page_user")) {
1198                 page_user();
1199         } else if (!strcasecmp(action, "chat")) {
1200                 do_chat();
1201         } else if (!strcasecmp(action, "display_private")) {
1202                 display_private("", 0);
1203         } else if (!strcasecmp(action, "goto_private")) {
1204                 goto_private();
1205         } else if (!strcasecmp(action, "zapped_list")) {
1206                 zapped_list();
1207         } else if (!strcasecmp(action, "display_zap")) {
1208                 display_zap();
1209         } else if (!strcasecmp(action, "zap")) {
1210                 zap();
1211         } else if (!strcasecmp(action, "display_entroom")) {
1212                 display_entroom();
1213         } else if (!strcasecmp(action, "entroom")) {
1214                 entroom();
1215         } else if (!strcasecmp(action, "display_whok")) {
1216                 display_whok();
1217         } else if (!strcasecmp(action, "do_invt_kick")) {
1218                 do_invt_kick();
1219         } else if (!strcasecmp(action, "display_editroom")) {
1220                 display_editroom();
1221         } else if (!strcasecmp(action, "netedit")) {
1222                 netedit();
1223         } else if (!strcasecmp(action, "editroom")) {
1224                 editroom();
1225         } else if (!strcasecmp(action, "display_editinfo")) {
1226                 display_edit("Room info", "EINF 0", "RINF", "/editinfo", 1);
1227         } else if (!strcasecmp(action, "editinfo")) {
1228                 save_edit("Room info", "EINF 1", 1);
1229         } else if (!strcasecmp(action, "display_editbio")) {
1230                 sprintf(buf, "RBIO %s", WC->wc_username);
1231                 display_edit("Your bio", "NOOP", buf, "editbio", 3);
1232         } else if (!strcasecmp(action, "editbio")) {
1233                 save_edit("Your bio", "EBIO", 0);
1234         } else if (!strcasecmp(action, "confirm_move_msg")) {
1235                 confirm_move_msg();
1236         } else if (!strcasecmp(action, "delete_room")) {
1237                 delete_room();
1238         } else if (!strcasecmp(action, "validate")) {
1239                 validate();
1240         } else if (!strcasecmp(action, "display_editpic")) {
1241                 display_graphics_upload("your photo",
1242                                         "UIMG 0|_userpic_",
1243                                         "/editpic");
1244         } else if (!strcasecmp(action, "editpic")) {
1245                 do_graphics_upload("UIMG 1|_userpic_");
1246         } else if (!strcasecmp(action, "display_editroompic")) {
1247                 display_graphics_upload("the graphic for this room",
1248                                         "UIMG 0|_roompic_",
1249                                         "/editroompic");
1250         } else if (!strcasecmp(action, "editroompic")) {
1251                 do_graphics_upload("UIMG 1|_roompic_");
1252         } else if (!strcasecmp(action, "delete_floor")) {
1253                 delete_floor();
1254         } else if (!strcasecmp(action, "rename_floor")) {
1255                 rename_floor();
1256         } else if (!strcasecmp(action, "create_floor")) {
1257                 create_floor();
1258         } else if (!strcasecmp(action, "display_editfloorpic")) {
1259                 sprintf(buf, "UIMG 0|_floorpic_|%s",
1260                         bstr("which_floor"));
1261                 display_graphics_upload("the graphic for this floor",
1262                                         buf,
1263                                         "/editfloorpic");
1264         } else if (!strcasecmp(action, "editfloorpic")) {
1265                 sprintf(buf, "UIMG 1|_floorpic_|%s",
1266                         bstr("which_floor"));
1267                 do_graphics_upload(buf);
1268         } else if (!strcasecmp(action, "display_reg")) {
1269                 display_reg(0);
1270         } else if (!strcasecmp(action, "display_changepw")) {
1271                 display_changepw();
1272         } else if (!strcasecmp(action, "changepw")) {
1273                 changepw();
1274         } else if (!strcasecmp(action, "display_edit_node")) {
1275                 display_edit_node();
1276         } else if (!strcasecmp(action, "edit_node")) {
1277                 edit_node();
1278         } else if (!strcasecmp(action, "display_netconf")) {
1279                 display_netconf();
1280         } else if (!strcasecmp(action, "display_confirm_delete_node")) {
1281                 display_confirm_delete_node();
1282         } else if (!strcasecmp(action, "delete_node")) {
1283                 delete_node();
1284         } else if (!strcasecmp(action, "display_add_node")) {
1285                 display_add_node();
1286         } else if (!strcasecmp(action, "add_node")) {
1287                 add_node();
1288         } else if (!strcasecmp(action, "terminate_session")) {
1289                 slrp_highest();
1290                 terminate_session();
1291         } else if (!strcasecmp(action, "edit_me")) {
1292                 edit_me();
1293         } else if (!strcasecmp(action, "display_siteconfig")) {
1294                 display_siteconfig();
1295         } else if (!strcasecmp(action, "chat_recv")) {
1296                 chat_recv();
1297         } else if (!strcasecmp(action, "chat_send")) {
1298                 chat_send();
1299         } else if (!strcasecmp(action, "siteconfig")) {
1300                 siteconfig();
1301         } else if (!strcasecmp(action, "display_generic")) {
1302                 display_generic();
1303         } else if (!strcasecmp(action, "do_generic")) {
1304                 do_generic();
1305         } else if (!strcasecmp(action, "display_menubar")) {
1306                 display_menubar(1);
1307         } else if (!strcasecmp(action, "output_mimepart")) {
1308                 output_mimepart();
1309         } else if (!strcasecmp(action, "edit_vcard")) {
1310                 edit_vcard();
1311         } else if (!strcasecmp(action, "submit_vcard")) {
1312                 submit_vcard();
1313         } else if (!strcasecmp(action, "select_user_to_edit")) {
1314                 select_user_to_edit(NULL, NULL);
1315         } else if (!strcasecmp(action, "display_edituser")) {
1316                 display_edituser(NULL, 0);
1317         } else if (!strcasecmp(action, "edituser")) {
1318                 edituser();
1319         } else if (!strcasecmp(action, "create_user")) {
1320                 create_user();
1321         } else if (!strcasecmp(action, "changeview")) {
1322                 change_view();
1323         } else if (!strcasecmp(action, "do_stuff_to_msgs")) {
1324                 do_stuff_to_msgs();
1325         } else if (!strcasecmp(action, "change_start_page")) {
1326                 change_start_page();
1327         } else if (!strcasecmp(action, "display_floorconfig")) {
1328                 display_floorconfig(NULL);
1329         } else if (!strcasecmp(action, "toggle_self_service")) {
1330                 toggle_self_service();
1331 #ifdef WEBCIT_WITH_CALENDAR_SERVICE
1332         } else if (!strcasecmp(action, "display_edit_task")) {
1333                 display_edit_task();
1334         } else if (!strcasecmp(action, "save_task")) {
1335                 save_task();
1336         } else if (!strcasecmp(action, "display_edit_event")) {
1337                 display_edit_event();
1338         } else if (!strcasecmp(action, "save_event")) {
1339                 save_event();
1340         } else if (!strcasecmp(action, "respond_to_request")) {
1341                 respond_to_request();
1342         } else if (!strcasecmp(action, "handle_rsvp")) {
1343                 handle_rsvp();
1344 #endif
1345         } else if (!strcasecmp(action, "summary")) {
1346                 summary();
1347         } else if (!strcasecmp(action, "iconbar")) {
1348                 do_iconbar();
1349         } else if (!strcasecmp(action, "display_customize_iconbar")) {
1350                 display_customize_iconbar();
1351         } else if (!strcasecmp(action, "commit_iconbar")) {
1352                 commit_iconbar();
1353         } else if (!strcasecmp(action, "set_room_policy")) {
1354                 set_room_policy();
1355         } else if (!strcasecmp(action, "display_inetconf")) {
1356                 display_inetconf();
1357         } else if (!strcasecmp(action, "save_inetconf")) {
1358                 save_inetconf();
1359         } else if (!strcasecmp(action, "setup_wizard")) {
1360                 do_setup_wizard();
1361         } else if (!strcasecmp(action, "diagnostics")) {
1362                 output_headers(1, 1, 1, 0, 0, 0, 0);
1363
1364                 wprintf("You're in session %d<hr />\n", WC->wc_session);
1365                 wprintf("Command: <br /><PRE>\n");
1366                 escputs(cmd);
1367                 wprintf("</PRE><hr />\n");
1368                 wprintf("Variables: <br /><PRE>\n");
1369                 dump_vars();
1370                 wprintf("</PRE><hr />\n");
1371                 wDumpContent(1);
1372         }
1373         /* When all else fais, display the main menu. */
1374         else {
1375                 display_main_menu();
1376         }
1377
1378 SKIP_ALL_THIS_CRAP:
1379         fflush(stdout);
1380         if (content != NULL) {
1381                 free(content);
1382                 content = NULL;
1383         }
1384         free_urls();
1385         if (WC->upload_length > 0) {
1386                 free(WC->upload);
1387                 WC->upload_length = 0;
1388         }
1389
1390 }