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 "webcit.h"
  11 #include "groupdav.h"
  12 #include "webserver.h"
  13 #include "mime_parser.h"
  14
  15 char request_method[128];
  16
  17 /*
  18  * String to unset the cookie.
  19  * Any date "in the past" will work, so I chose my birthday, right down to
  20  * the exact minute.  :)
  21  */
  22 static char *unset = "; expires=28-May-1971 18:10:00 GMT";
  23
  24 void unescape_input(char *buf)
  25 {
  26         int a, b;
  27         char hex[3];
  28
  29         while ((isspace(buf[strlen(buf) - 1])) && (strlen(buf) > 0))
  30                 buf[strlen(buf) - 1] = 0;
  31
  32         for (a = 0; a < strlen(buf); ++a) {
  33                 if (buf[a] == '+')
  34                         buf[a] = ' ';
  35                 if (buf[a] == '%') {
  36                         hex[0] = buf[a + 1];
  37                         hex[1] = buf[a + 2];
  38                         hex[2] = 0;
  39                         b = 0;
  40                         sscanf(hex, "%02x", &b);
  41                         buf[a] = (char) b;
  42                         strcpy(&buf[a + 1], &buf[a + 3]);
  43                 }
  44         }
  45
  46 }
  47
  48
  49 void addurls(char *url)
  50 {
  51         char *up, *ptr;
  52         char buf[SIZ];
  53         int a, b;
  54         struct urlcontent *u;
  55
  56         up = url;
  57         while (strlen(up) > 0) {
  58
  59                 /* locate the = sign */
  60                 safestrncpy(buf, up, sizeof buf);
  61                 b = (-1);
  62                 for (a = 255; a >= 0; --a)
  63                         if (buf[a] == '=')
  64                                 b = a;
  65                 if (b < 0)
  66                         return;
  67                 buf[b] = 0;
  68
  69                 u = (struct urlcontent *) malloc(sizeof(struct urlcontent));
  70                 u->next = WC->urlstrings;
  71                 WC->urlstrings = u;
  72                 safestrncpy(u->url_key, buf, sizeof u->url_key);
  73
  74                 /* now chop that part off */
  75                 for (a = 0; a <= b; ++a)
  76                         ++up;
  77
  78                 /* locate "&" and "?" delimiters */
  79                 ptr = up;
  80                 b = strlen(up);
  81                 for (a = 0; a < strlen(up); ++a) {
  82                         if ( (ptr[0] == '&') || (ptr[0] == '?') ) {
  83                                 b = a;
  84                                 break;
  85                         }
  86                         ++ptr;
  87                 }
  88                 ptr = up;
  89                 for (a = 0; a < b; ++a)
  90                         ++ptr;
  91                 strcpy(ptr, "");
  92
  93                 u->url_data = malloc(strlen(up) + 2);
  94                 safestrncpy(u->url_data, up, strlen(up) + 1);
  95                 u->url_data[b] = 0;
  96                 unescape_input(u->url_data);
  97                 up = ptr;
  98                 ++up;
  99         }
 100 }
 101
 102 void free_urls(void)
 103 {
 104         struct urlcontent *u;
 105
 106         while (WC->urlstrings != NULL) {
 107                 free(WC->urlstrings->url_data);
 108                 u = WC->urlstrings->next;
 109                 free(WC->urlstrings);
 110                 WC->urlstrings = u;
 111         }
 112 }
 113
 114 /*
 115  * Diagnostic function to display the contents of all variables
 116  */
 117 void dump_vars(void)
 118 {
 119         struct urlcontent *u;
 120
 121         for (u = WC->urlstrings; u != NULL; u = u->next) {
 122                 wprintf("%38s = %s\n", u->url_key, u->url_data);
 123         }
 124 }
 125
 126 char *bstr(char *key)
 127 {
 128         struct urlcontent *u;
 129
 130         for (u = WC->urlstrings; u != NULL; u = u->next) {
 131                 if (!strcasecmp(u->url_key, key))
 132                         return (u->url_data);
 133         }
 134         return ("");
 135 }
 136
 137
 138 void wprintf(const char *format,...)
 139 {
 140         va_list arg_ptr;
 141         char wbuf[4096];
 142
 143         va_start(arg_ptr, format);
 144         vsnprintf(wbuf, sizeof wbuf, format, arg_ptr);
 145         va_end(arg_ptr);
 146
 147         client_write(wbuf, strlen(wbuf));
 148 }
 149
 150
 151 /*
 152  * wDumpContent() wraps up an HTTP session, closes tags, etc.
 153  *
 154  * print_standard_html_footer should be set to 0 to transmit only, 1 to
 155  * append the main menu and closing tags, or 2 to
 156  * append the closing tags only.
 157  */
 158 void wDumpContent(int print_standard_html_footer)
 159 {
 160         if (print_standard_html_footer) {
 161                 wprintf("</div>\n");    /* end of "text" div */
 162                 do_template("trailing");
 163         }
 164
 165         /* If we've been saving it all up for one big output burst,
 166          * go ahead and do that now.
 167          */
 168         end_burst();
 169 }
 170
 171
 172 /*
 173  * Copy a string, escaping characters which have meaning in HTML.  If
 174  * nbsp is nonzero, spaces are converted to non-breaking spaces.
 175  */
 176 void stresc(char *target, char *strbuf, int nbsp, int nolinebreaks)
 177 {
 178         int a;
 179         strcpy(target, "");
 180
 181         for (a = 0; a < strlen(strbuf); ++a) {
 182                 if (strbuf[a] == '<')
 183                         strcat(target, "&lt;");
 184                 else if (strbuf[a] == '>')
 185                         strcat(target, "&gt;");
 186                 else if (strbuf[a] == '&')
 187                         strcat(target, "&amp;");
 188                 else if (strbuf[a] == '\"')
 189                         strcat(target, "&quot;");
 190                 else if (strbuf[a] == '\'')
 191                         strcat(target, "&#39;");
 192                 else if (strbuf[a] == LB)
 193                         strcat(target, "<");
 194                 else if (strbuf[a] == RB)
 195                         strcat(target, ">");
 196                 else if (strbuf[a] == QU)
 197                         strcat(target, "\"");
 198                 else if ((strbuf[a] == 32) && (nbsp == 1))
 199                         strcat(target, "&nbsp;");
 200                 else if ((strbuf[a] == '\n') && (nolinebreaks))
 201                         strcat(target, "");     /* nothing */
 202                 else if ((strbuf[a] == '\r') && (nolinebreaks))
 203                         strcat(target, "");     /* nothing */
 204                 else
 205                         strncat(target, &strbuf[a], 1);
 206         }
 207 }
 208
 209 void escputs1(char *strbuf, int nbsp, int nolinebreaks)
 210 {
 211         char *buf;
 212
 213         if (strbuf == NULL) return;
 214         buf = malloc( (3 * strlen(strbuf)) + SIZ );
 215         stresc(buf, strbuf, nbsp, nolinebreaks);
 216         wprintf("%s", buf);
 217         free(buf);
 218 }
 219
 220 void escputs(char *strbuf)
 221 {
 222         escputs1(strbuf, 0, 0);
 223 }
 224
 225 /*
 226  * Escape a string for feeding out as a URL.
 227  * Returns a pointer to a buffer that must be freed by the caller!
 228  */
 229 void urlesc(char *outbuf, char *strbuf)
 230 {
 231         int a, b, c;
 232         char *ec = " #&;`'|*?-~<>^()[]{}$\\";
 233
 234         strcpy(outbuf, "");
 235
 236         for (a = 0; a < strlen(strbuf); ++a) {
 237                 c = 0;
 238                 for (b = 0; b < strlen(ec); ++b) {
 239                         if (strbuf[a] == ec[b])
 240                                 c = 1;
 241                 }
 242                 b = strlen(outbuf);
 243                 if (c == 1)
 244                         sprintf(&outbuf[b], "%%%02x", strbuf[a]);
 245                 else
 246                         sprintf(&outbuf[b], "%c", strbuf[a]);
 247         }
 248 }
 249
 250 void urlescputs(char *strbuf)
 251 {
 252         char outbuf[SIZ];
 253
 254         urlesc(outbuf, strbuf);
 255         wprintf("%s", outbuf);
 256 }
 257
 258
 259 /*
 260  * Copy a string, escaping characters for JavaScript strings.
 261  */
 262 void jsesc(char *target, char *strbuf)
 263 {
 264         int a;
 265         strcpy(target, "");
 266
 267         for (a = 0; a < strlen(strbuf); ++a) {
 268                 if (strbuf[a] == '<')
 269                         strcat(target, "[");
 270                 else if (strbuf[a] == '>')
 271                         strcat(target, "]");
 272                 else if (strbuf[a] == '\"')
 273                         strcat(target, "&quot;");
 274                 else if (strbuf[a] == '&')
 275                         strcat(target, "&amp;;");
 276                 else if (strbuf[a] == '\'')
 277                         strcat(target, "\\'");
 278                 else {
 279                         strncat(target, &strbuf[a], 1);
 280                 }
 281         }
 282 }
 283
 284 void jsescputs(char *strbuf)
 285 {
 286         char outbuf[SIZ];
 287
 288         jsesc(outbuf, strbuf);
 289         wprintf("%s", outbuf);
 290 }
 291
 292 /*
 293  * Copy a string, escaping characters for message text hold
 294  */
 295 void msgesc(char *target, char *strbuf)
 296 {
 297         int a;
 298         strcpy(target, "");
 299
 300         for (a = 0; a < strlen(strbuf); ++a) {
 301                 if (strbuf[a] == '\'')
 302                         strcat(target, "\\'");
 303                 else if (strbuf[a] == '\n')
 304                         strcat(target, " ");
 305                 else if (strbuf[a] == '\r')
 306                         strcat(target, " ");
 307                 else {
 308                         strncat(target, &strbuf[a], 1);
 309                 }
 310         }
 311 }
 312
 313 void msgescputs(char *strbuf) {
 314         char *outbuf;
 315
 316         if (strbuf == NULL) return;
 317         outbuf = malloc( (3 * strlen(strbuf)) + SIZ);
 318         msgesc(outbuf, strbuf);
 319         wprintf("%s", outbuf);
 320         free(outbuf);
 321 }
 322
 323
 324
 325
 326 /*
 327  * Output all that important stuff that the browser will want to see
 328  */
 329 void output_headers(    int do_httpheaders,     /* 1 = output HTTP headers                          */
 330                         int do_htmlhead,        /* 1 = output HTML <head> section and <body> opener */
 331
 332                         int do_room_banner,     /* 0=no, 1=yes,                                     */
 333                                                 /* 2 = I'm going to embed my own, so don't open the */
 334                                                 /*     <div id="content"> either.                   */
 335
 336                         int unset_cookies,      /* 1 = session is terminating, so unset the cookies */
 337                         int refresh30,          /* 1 = automatically refresh page every 30 seconds  */
 338                         int suppress_check,     /* 1 = suppress check for instant messages          */
 339                         int cache               /* 1 = allow browser to cache this page             */
 340 ) {
 341         char cookie[SIZ];
 342         char httpnow[SIZ];
 343
 344         wprintf("HTTP/1.0 200 OK\n");
 345         httpdate(httpnow, time(NULL));
 346
 347         if (do_httpheaders) {
 348                 wprintf("Content-type: text/html; charset=utf-8\r\n"
 349                         "Server: %s / %s\n"
 350                         "Connection: close\r\n",
 351                         SERVER, serv_info.serv_software
 352                 );
 353         }
 354
 355         if (cache) {
 356                 wprintf("Pragma: public\r\n"
 357                         "Cache-Control: max-age=3600, must-revalidate\r\n"
 358                         "Last-modified: %s\r\n",
 359                         httpnow
 360                 );
 361         }
 362         else {
 363                 wprintf("Pragma: no-cache\r\n"
 364                         "Cache-Control: no-store\r\n"
 365                 );
 366         }
 367
 368         stuff_to_cookie(cookie, WC->wc_session, WC->wc_username,
 369                         WC->wc_password, WC->wc_roomname);
 370
 371         if (unset_cookies) {
 372                 wprintf("Set-cookie: webcit=%s; path=/\r\n", unset);
 373         } else {
 374                 wprintf("Set-cookie: webcit=%s; path=/\r\n", cookie);
 375                 if (server_cookie != NULL) {
 376                         wprintf("%s\n", server_cookie);
 377                 }
 378         }
 379
 380         if (do_htmlhead) {
 381                 /* wprintf("\n"); */
 382                 begin_burst();
 383
 384                 if (refresh30) {
 385                         svprintf("REFRESHTAG", WCS_STRING, "%s",
 386                                 "<meta http-equiv=\"refresh\" content=\"30\" />\n");
 387                 }
 388                 else {
 389                         svprintf("REFRESHTAG", WCS_STRING, "%s",
 390                                 "<meta http-equiv=\"refresh\" content=\"500363689;\" />\n");
 391                 }
 392
 393                 do_template("head");
 394         }
 395
 396         /* ICONBAR */
 397         if (do_htmlhead) {
 398
 399                 if (WC->HaveInstantMessages) {
 400                         wprintf("<div id=\"page_popup\">\n");
 401                         page_popup();
 402                         wprintf("</div>\n");
 403                 }
 404                 if (strlen(WC->ImportantMessage) > 0) {
 405                         wprintf("<div id=\"important_message\">\n");
 406                         wprintf("<SPAN CLASS=\"imsg\">"
 407                                 "%s</SPAN><br />\n", WC->ImportantMessage);
 408                         wprintf("</div>\n");
 409                         wprintf("<script type=\"text/javascript\">\n"
 410                                 "        setTimeout('hide_imsg_popup()', 2000); \n"
 411                                 "</script>\n");
 412                         safestrncpy(WC->ImportantMessage, "", sizeof WC->ImportantMessage);
 413                 }
 414                 if ( (WC->logged_in) && (!unset_cookies) ) {
 415                         wprintf("<div id=\"iconbar\">");
 416                         do_iconbar();
 417                         wprintf("</div>\n");
 418                 }
 419                 if (do_room_banner == 1) {
 420                         wprintf("<div id=\"banner\">\n");
 421                         embed_room_banner(NULL, navbar_default);
 422                         wprintf("</div>\n");
 423                 }
 424         }
 425
 426         if (do_room_banner == 1) {
 427                 wprintf("<div id=\"content\">\n");
 428         }
 429 }
 430
 431
 432 /*
 433  * Generic function to do an HTTP redirect.  Easy and fun.
 434  */
 435 void http_redirect(char *whichpage) {
 436         wprintf("HTTP/1.0 302 Moved Temporarily\n");
 437         wprintf("Location: %s\r\n", whichpage);
 438         wprintf("URI: %s\r\n", whichpage);
 439         wprintf("Content-type: text/html; charset=utf-8\r\n\r\n");
 440         wprintf("<html><body>");
 441         wprintf("Go <A HREF=\"%s\">here</A>.", whichpage);
 442         wprintf("</body></html>\n");
 443 }
 444
 445
 446
 447 void check_for_instant_messages()
 448 {
 449         char buf[SIZ];
 450
 451         serv_puts("NOOP");
 452         serv_getln(buf, sizeof buf);
 453         if (buf[3] == '*') WC->HaveInstantMessages = 1;
 454 }
 455
 456
 457
 458
 459 /*
 460  * Output a piece of content to the web browser
 461  */
 462 void http_transmit_thing(char *thing, size_t length, char *content_type,
 463                          int is_static) {
 464
 465         output_headers(0, 0, 0, 0, 0, 0, is_static);
 466
 467         wprintf("Content-type: %s\r\n"
 468                 "Server: %s\r\n"
 469                 "Connection: close\r\n",
 470                 content_type,
 471                 SERVER);
 472
 473 #ifdef HAVE_ZLIB
 474         /* If we can send the data out compressed, please do so. */
 475         if (WC->gzip_ok) {
 476                 char *compressed_data = NULL;
 477                 uLongf compressed_len;
 478
 479                 compressed_len = (uLongf) ((length * 101) / 100) + 100;
 480                 compressed_data = malloc(compressed_len);
 481
 482                 if (compress_gzip((Bytef *) compressed_data,
 483                                   &compressed_len,
 484                                   (Bytef *) thing,
 485                                   (uLongf) length, Z_BEST_SPEED) == Z_OK) {
 486                         wprintf("Content-encoding: gzip\r\n"
 487                                 "Content-length: %ld\r\n"
 488                                 "\r\n",
 489                                 (long) compressed_len
 490                         );
 491                         client_write(compressed_data, (size_t)compressed_len);
 492                         free(compressed_data);
 493                         return;
 494                 }
 495         }
 496 #endif
 497
 498         /* No compression ... just send it out as-is */
 499         wprintf("Content-length: %ld\r\n"
 500                 "\r\n",
 501                 (long) length
 502         );
 503         client_write(thing, (size_t)length);
 504 }
 505
 506
 507
 508
 509 void output_static(char *what)
 510 {
 511         char buf[256];
 512         FILE *fp;
 513         struct stat statbuf;
 514         off_t bytes;
 515         char *bigbuffer;
 516         char content_type[128];
 517
 518         sprintf(buf, "static/%s", what);
 519         fp = fopen(buf, "rb");
 520         if (fp == NULL) {
 521                 wprintf("HTTP/1.0 404 %s\n", strerror(errno));
 522                 wprintf("Content-Type: text/plain\r\n");
 523                 wprintf("\r\n");
 524                 wprintf("Cannot open %s: %s\n", what, strerror(errno));
 525         } else {
 526                 if (!strncasecmp(&what[strlen(what) - 4], ".gif", 4))
 527                         safestrncpy(content_type, "image/gif", sizeof content_type);
 528                 else if (!strncasecmp(&what[strlen(what) - 4], ".txt", 4))
 529                         safestrncpy(content_type, "text/plain", sizeof content_type);
 530                 else if (!strncasecmp(&what[strlen(what) - 4], ".css", 4))
 531                         safestrncpy(content_type, "text/css", sizeof content_type);
 532                 else if (!strncasecmp(&what[strlen(what) - 4], ".jpg", 4))
 533                         safestrncpy(content_type, "image/jpeg", sizeof content_type);
 534                 else if (!strncasecmp(&what[strlen(what) - 4], ".png", 4))
 535                         safestrncpy(content_type, "image/png", sizeof content_type);
 536                 else if (!strncasecmp(&what[strlen(what) - 4], ".ico", 4))
 537                         safestrncpy(content_type, "image/x-icon", sizeof content_type);
 538                 else if (!strncasecmp(&what[strlen(what) - 5], ".html", 5))
 539                         safestrncpy(content_type, "text/html", sizeof content_type);
 540                 else if (!strncasecmp(&what[strlen(what) - 4], ".htm", 4))
 541                         safestrncpy(content_type, "text/html", sizeof content_type);
 542                 else if (!strncasecmp(&what[strlen(what) - 4], ".wml", 4))
 543                         safestrncpy(content_type, "text/vnd.wap.wml", sizeof content_type);
 544                 else if (!strncasecmp(&what[strlen(what) - 5], ".wmls", 5))
 545                         safestrncpy(content_type, "text/vnd.wap.wmlscript", sizeof content_type);
 546                 else if (!strncasecmp(&what[strlen(what) - 5], ".wmlc", 5))
 547                         safestrncpy(content_type, "application/vnd.wap.wmlc", sizeof content_type);
 548                 else if (!strncasecmp(&what[strlen(what) - 6], ".wmlsc", 6))
 549                         safestrncpy(content_type, "application/vnd.wap.wmlscriptc", sizeof content_type);
 550                 else if (!strncasecmp(&what[strlen(what) - 5], ".wbmp", 5))
 551                         safestrncpy(content_type, "image/vnd.wap.wbmp", sizeof content_type);
 552                 else if (!strncasecmp(&what[strlen(what) - 3], ".js", 3))
 553                         safestrncpy(content_type, "text/javascript", sizeof content_type);
 554                 else
 555                         safestrncpy(content_type, "application/octet-stream", sizeof content_type);
 556
 557                 fstat(fileno(fp), &statbuf);
 558                 bytes = statbuf.st_size;
 559                 bigbuffer = malloc(bytes + 2);
 560                 fread(bigbuffer, bytes, 1, fp);
 561                 fclose(fp);
 562
 563                 http_transmit_thing(bigbuffer, (size_t)bytes, content_type, 1);
 564                 free(bigbuffer);
 565         }
 566         if (!strcasecmp(bstr("force_close_session"), "yes")) {
 567                 end_webcit_session();
 568         }
 569 }
 570
 571
 572 /*
 573  * When the browser requests an image file from the Citadel server,
 574  * this function is called to transmit it.
 575  */
 576 void output_image()
 577 {
 578         char buf[SIZ];
 579         char *xferbuf = NULL;
 580         off_t bytes;
 581
 582         serv_printf("OIMG %s|%s", bstr("name"), bstr("parm"));
 583         serv_getln(buf, sizeof buf);
 584         if (buf[0] == '2') {
 585                 bytes = extract_long(&buf[4], 0);
 586                 xferbuf = malloc(bytes + 2);
 587
 588                 /* Read it from the server */
 589                 read_server_binary(xferbuf, bytes);
 590                 serv_puts("CLOS");
 591                 serv_getln(buf, sizeof buf);
 592
 593                 /* Write it to the browser */
 594                 http_transmit_thing(xferbuf, (size_t)bytes, "image/gif", 0);
 595                 free(xferbuf);
 596
 597         } else {
 598                 /* Instead of an ugly 404, send a 1x1 transparent GIF
 599                  * when there's no such image on the server.
 600                  */
 601                 output_static("blank.gif");
 602         }
 603
 604
 605
 606 }
 607
 608 /*
 609  * Generic function to output an arbitrary MIME part from an arbitrary
 610  * message number on the server.
 611  */
 612 void output_mimepart()
 613 {
 614         char buf[SIZ];
 615         off_t bytes;
 616         char content_type[SIZ];
 617         char *content = NULL;
 618
 619         serv_printf("OPNA %s|%s", bstr("msgnum"), bstr("partnum"));
 620         serv_getln(buf, sizeof buf);
 621         if (buf[0] == '2') {
 622                 bytes = extract_long(&buf[4], 0);
 623                 content = malloc(bytes + 2);
 624                 extract_token(content_type, &buf[4], 3, '|', sizeof content_type);
 625                 output_headers(0, 0, 0, 0, 0, 0, 0);
 626                 read_server_binary(content, bytes);
 627                 serv_puts("CLOS");
 628                 serv_getln(buf, sizeof buf);
 629                 http_transmit_thing(content, bytes, content_type, 0);
 630                 free(content);
 631         } else {
 632                 wprintf("HTTP/1.0 404 %s\n", &buf[4]);
 633                 output_headers(0, 0, 0, 0, 0, 0, 0);
 634                 wprintf("Content-Type: text/plain\r\n");
 635                 wprintf("\r\n");
 636                 wprintf(_("An error occurred while retrieving this part: %s\n"), &buf[4]);
 637         }
 638
 639 }
 640
 641
 642 /*
 643  */
 644 char *load_mimepart(long msgnum, char *partnum)
 645 {
 646         char buf[SIZ];
 647         off_t bytes;
 648         char content_type[SIZ];
 649         char *content;
 650
 651         serv_printf("OPNA %ld|%s", msgnum, partnum);
 652         serv_getln(buf, sizeof buf);
 653         if (buf[0] == '2') {
 654                 bytes = extract_long(&buf[4], 0);
 655                 extract_token(content_type, &buf[4], 3, '|', sizeof content_type);
 656
 657                 content = malloc(bytes + 2);
 658                 read_server_binary(content, bytes);
 659
 660                 serv_puts("CLOS");
 661                 serv_getln(buf, sizeof buf);
 662                 content[bytes] = 0;     /* null terminate for good measure */
 663                 return(content);
 664         }
 665         else {
 666                 return(NULL);
 667         }
 668
 669 }
 670
 671
 672 /*
 673  * Convenience functions to display a page containing only a string
 674  */
 675 void convenience_page(char *titlebarcolor, char *titlebarmsg, char *messagetext)
 676 {
 677         wprintf("HTTP/1.0 200 OK\n");
 678         output_headers(1, 1, 2, 0, 0, 0, 0);
 679         wprintf("<div id=\"banner\">\n");
 680         wprintf("<TABLE WIDTH=100%% BORDER=0 BGCOLOR=\"#%s\"><TR><TD>", titlebarcolor);
 681         wprintf("<SPAN CLASS=\"titlebar\">%s</SPAN>\n", titlebarmsg);
 682         wprintf("</TD></TR></TABLE>\n");
 683         wprintf("</div>\n<div id=\"content\">\n");
 684         escputs(messagetext);
 685
 686         wprintf("<hr />\n");
 687         wDumpContent(1);
 688 }
 689
 690
 691 /*
 692  * Display a blank page.
 693  */
 694 void blank_page(void) {
 695         output_headers(1, 1, 0, 0, 1, 0, 0);
 696         wDumpContent(2);
 697 }
 698
 699
 700 /*
 701  * A template has been requested
 702  */
 703 void url_do_template(void) {
 704         do_template(bstr("template"));
 705 }
 706
 707
 708
 709 /*
 710  * Offer to make any page the user's "start page."
 711  */
 712 void offer_start_page(void) {
 713         wprintf("<A HREF=\"/change_start_page?startpage=");
 714         urlescputs(WC->this_page);
 715         wprintf("\"><FONT SIZE=-2 COLOR=\"#AAAAAA\">");
 716         wprintf(_("Make this my start page"));
 717         wprintf("</FONT></A>");
 718 }
 719
 720
 721 /*
 722  * Change the user's start page
 723  */
 724 void change_start_page(void) {
 725
 726         if (bstr("startpage") == NULL) {
 727                 safestrncpy(WC->ImportantMessage,
 728                         _("You no longer have a start page selected."),
 729                         sizeof WC->ImportantMessage);
 730                 display_main_menu();
 731                 return;
 732         }
 733
 734         set_preference("startpage", bstr("startpage"), 1);
 735
 736         output_headers(1, 1, 0, 0, 0, 0, 0);
 737         do_template("newstartpage");
 738         wDumpContent(1);
 739 }
 740
 741
 742
 743
 744 void display_success(char *successmessage)
 745 {
 746         convenience_page("007700", "OK", successmessage);
 747 }
 748
 749
 750 /* Authorization required page */
 751 /* This is probably temporary and should be revisited */
 752 void authorization_required(const char *message)
 753 {
 754         wprintf("HTTP/1.0 401 Authorization Required\r\n");
 755         wprintf("WWW-Authenticate: Basic realm=\"\"\r\n", serv_info.serv_humannode);
 756         wprintf("Content-Type: text/html\r\n\r\n");
 757         wprintf("<h1>");
 758         wprintf(_("Authorization Required"));
 759         wprintf("</h1>\r\n");
 760         wprintf(_("The resource you requested requires a valid username and password. "
 761                 "You could not be logged in: %s\n"), message);
 762         wDumpContent(0);
 763 }
 764
 765
 766 void upload_handler(char *name, char *filename, char *partnum, char *disp,
 767                         void *content, char *cbtype, char *cbcharset,
 768                         size_t length, char *encoding, void *userdata)
 769 {
 770         struct urlcontent *u;
 771
 772         lprintf(9, "upload_handler() name=%s, type=%s, len=%d\n",
 773                 name, cbtype, length);
 774
 775         /* Form fields */
 776         if ( (length > 0) && (strlen(cbtype) == 0) ) {
 777                 u = (struct urlcontent *) malloc(sizeof(struct urlcontent));
 778                 u->next = WC->urlstrings;
 779                 WC->urlstrings = u;
 780                 safestrncpy(u->url_key, name, sizeof(u->url_key));
 781                 u->url_data = malloc(length + 1);
 782                 memcpy(u->url_data, content, length);
 783                 u->url_data[length] = 0;
 784         }
 785
 786         /* Uploaded files */
 787         if ( (length > 0) && (strlen(cbtype) > 0) ) {
 788                 WC->upload = malloc(length);
 789                 if (WC->upload != NULL) {
 790                         WC->upload_length = length;
 791                         safestrncpy(WC->upload_filename, filename,
 792                                         sizeof(WC->upload_filename));
 793                         safestrncpy(WC->upload_content_type, cbtype,
 794                                         sizeof(WC->upload_content_type));
 795                         memcpy(WC->upload, content, length);
 796                 }
 797                 else {
 798                         lprintf(3, "malloc() failed: %s\n", strerror(errno));
 799                 }
 800         }
 801
 802 }
 803
 804
 805
 806
 807 /*
 808  * Entry point for WebCit transaction
 809  */
 810 void session_loop(struct httprequest *req)
 811 {
 812         char cmd[1024];
 813         char action[128];
 814         char arg1[128];
 815         char arg2[128];
 816         char arg3[128];
 817         char buf[SIZ];
 818         int a, b;
 819         int ContentLength = 0;
 820         int BytesRead = 0;
 821         char ContentType[512];
 822         char *content = NULL;
 823         char *content_end = NULL;
 824         struct httprequest *hptr;
 825         char browser_host[SIZ];
 826         char user_agent[SIZ];
 827         int body_start = 0;
 828
 829         /* We stuff these with the values coming from the client cookies,
 830          * so we can use them to reconnect a timed out session if we have to.
 831          */
 832         char c_username[SIZ];
 833         char c_password[SIZ];
 834         char c_roomname[SIZ];
 835         char c_httpauth_string[SIZ];
 836         char c_httpauth_user[SIZ];
 837         char c_httpauth_pass[SIZ];
 838         char cookie[SIZ];
 839
 840         safestrncpy(c_username, "", sizeof c_username);
 841         safestrncpy(c_password, "", sizeof c_password);
 842         safestrncpy(c_roomname, "", sizeof c_roomname);
 843         safestrncpy(c_httpauth_string, "", sizeof c_httpauth_string);
 844         safestrncpy(c_httpauth_user, DEFAULT_HTTPAUTH_USER, sizeof c_httpauth_user);
 845         safestrncpy(c_httpauth_pass, DEFAULT_HTTPAUTH_PASS, sizeof c_httpauth_pass);
 846
 847         WC->upload_length = 0;
 848         WC->upload = NULL;
 849         WC->vars = NULL;
 850
 851         WC->is_wap = 0;
 852
 853         hptr = req;
 854         if (hptr == NULL) return;
 855
 856         safestrncpy(cmd, hptr->line, sizeof cmd);
 857         hptr = hptr->next;
 858         extract_token(request_method, cmd, 0, ' ', sizeof request_method);
 859
 860         /* Figure out the action */
 861         extract_token(action, cmd, 1, '/', sizeof action);
 862         if (strstr(action, "?")) *strstr(action, "?") = 0;
 863         if (strstr(action, "&")) *strstr(action, "&") = 0;
 864         if (strstr(action, " ")) *strstr(action, " ") = 0;
 865
 866         extract_token(arg1, cmd, 2, '/', sizeof arg1);
 867         if (strstr(arg1, "?")) *strstr(arg1, "?") = 0;
 868         if (strstr(arg1, "&")) *strstr(arg1, "&") = 0;
 869         if (strstr(arg1, " ")) *strstr(arg1, " ") = 0;
 870
 871         extract_token(arg2, cmd, 3, '/', sizeof arg2);
 872         if (strstr(arg2, "?")) *strstr(arg2, "?") = 0;
 873         if (strstr(arg2, "&")) *strstr(arg2, "&") = 0;
 874         if (strstr(arg2, " ")) *strstr(arg2, " ") = 0;
 875
 876         extract_token(arg3, cmd, 4, '/', sizeof arg3);
 877         if (strstr(arg3, "?")) *strstr(arg3, "?") = 0;
 878         if (strstr(arg3, "&")) *strstr(arg3, "&") = 0;
 879         if (strstr(arg3, " ")) *strstr(arg3, " ") = 0;
 880
 881         while (hptr != NULL) {
 882                 safestrncpy(buf, hptr->line, sizeof buf);
 883                 hptr = hptr->next;
 884
 885                 if (!strncasecmp(buf, "Cookie: webcit=", 15)) {
 886                         safestrncpy(cookie, &buf[15], sizeof cookie);
 887                         cookie_to_stuff(cookie, NULL,
 888                                         c_username, sizeof c_username,
 889                                         c_password, sizeof c_password,
 890                                         c_roomname, sizeof c_roomname);
 891                 }
 892                 else if (!strncasecmp(buf, "Authorization: Basic ", 21)) {
 893                         CtdlDecodeBase64(c_httpauth_string, &buf[21], strlen(&buf[21]));
 894                         extract_token(c_httpauth_user, c_httpauth_string, 0, ':', sizeof c_httpauth_user);
 895                         extract_token(c_httpauth_pass, c_httpauth_string, 1, ':', sizeof c_httpauth_pass);
 896                 }
 897                 else if (!strncasecmp(buf, "Content-length: ", 16)) {
 898                         ContentLength = atoi(&buf[16]);
 899                 }
 900                 else if (!strncasecmp(buf, "Content-type: ", 14)) {
 901                         safestrncpy(ContentType, &buf[14], sizeof ContentType);
 902                 }
 903                 else if (!strncasecmp(buf, "User-agent: ", 12)) {
 904                         safestrncpy(user_agent, &buf[12], sizeof user_agent);
 905                 }
 906                 else if (!strncasecmp(buf, "Host: ", 6)) {
 907                         safestrncpy(WC->http_host, &buf[6], sizeof WC->http_host);
 908                 }
 909                 /* Only WAP gateways explicitly name this content-type */
 910                 else if (strstr(buf, "text/vnd.wap.wml")) {
 911                         WC->is_wap = 1;
 912                 }
 913         }
 914
 915         if (ContentLength > 0) {
 916                 content = malloc(ContentLength + SIZ);
 917                 memset(content, 0, ContentLength + SIZ);
 918                 sprintf(content, "Content-type: %s\n"
 919                                 "Content-length: %d\n\n",
 920                                 ContentType, ContentLength);
 921                 body_start = strlen(content);
 922
 923                 /* Read the entire input data at once. */
 924                 client_read(WC->http_sock, &content[BytesRead+body_start],
 925                         ContentLength);
 926
 927                 if (!strncasecmp(ContentType,
 928                               "application/x-www-form-urlencoded", 33)) {
 929                         addurls(&content[body_start]);
 930                 } else if (!strncasecmp(ContentType, "multipart", 9)) {
 931                         content_end = content + ContentLength + body_start;
 932                         mime_parser(content, content_end, *upload_handler,
 933                                         NULL, NULL, NULL, 0);
 934                 }
 935         } else {
 936                 content = NULL;
 937         }
 938
 939         /* make a note of where we are in case the user wants to save it */
 940         safestrncpy(WC->this_page, cmd, sizeof(WC->this_page));
 941         remove_token(WC->this_page, 2, ' ');
 942         remove_token(WC->this_page, 0, ' ');
 943
 944         /* If there are variables in the URL, we must grab them now */
 945         for (a = 0; a < strlen(cmd); ++a) {
 946                 if ((cmd[a] == '?') || (cmd[a] == '&')) {
 947                         for (b = a; b < strlen(cmd); ++b)
 948                                 if (isspace(cmd[b]))
 949                                         cmd[b] = 0;
 950                         addurls(&cmd[a + 1]);
 951                         cmd[a] = 0;
 952                 }
 953         }
 954
 955
 956         /* Static content can be sent without connecting to Citadel. */
 957         if (!strcasecmp(action, "static")) {
 958                 safestrncpy(buf, arg1, sizeof buf);
 959                 for (a = 0; a < strlen(buf); ++a)
 960                         if (isspace(buf[a]))
 961                                 buf[a] = 0;
 962                 output_static(buf);
 963                 goto SKIP_ALL_THIS_CRAP;        /* Don't try to connect */
 964         }
 965
 966         /*
 967          * If we're not connected to a Citadel server, try to hook up the
 968          * connection now.
 969          */
 970         if (!WC->connected) {
 971                 if (!strcasecmp(ctdlhost, "uds")) {
 972                         /* unix domain socket */
 973                         sprintf(buf, "%s/citadel.socket", ctdlport);
 974                         WC->serv_sock = uds_connectsock(buf);
 975                 }
 976                 else {
 977                         /* tcp socket */
 978                         WC->serv_sock = tcp_connectsock(ctdlhost, ctdlport);
 979                 }
 980
 981                 if (WC->serv_sock < 0) {
 982                         do_logout();
 983                         goto SKIP_ALL_THIS_CRAP;
 984                 }
 985                 else {
 986                         WC->connected = 1;
 987                         serv_getln(buf, sizeof buf);    /* get the server welcome message */
 988                         locate_host(browser_host, WC->http_sock);
 989                         get_serv_info(browser_host, user_agent);
 990                         if (serv_info.serv_rev_level < MINIMUM_CIT_VERSION) {
 991                                 wprintf(_("You are connected to a Citadel "
 992                                         "server running Citadel %d.%02d. \n"
 993                                         "In order to run this version of WebCit "
 994                                         "you must also have Citadel %d.%02d or"
 995                                         " newer.\n\n\n"),
 996                                                 serv_info.serv_rev_level / 100,
 997                                                 serv_info.serv_rev_level % 100,
 998                                                 MINIMUM_CIT_VERSION / 100,
 999                                                 MINIMUM_CIT_VERSION % 100
1000                                         );
1001                                 end_webcit_session();
1002                                 goto SKIP_ALL_THIS_CRAP;
1003                         }
1004                 }
1005         }
1006
1007         /*
1008          * Functions which can be performed without logging in
1009          */
1010         if (!strcasecmp(action, "listsub")) {
1011                 do_listsub();
1012                 goto SKIP_ALL_THIS_CRAP;
1013         }
1014 #ifdef WEBCIT_WITH_CALENDAR_SERVICE
1015         if (!strcasecmp(action, "freebusy")) {
1016                 do_freebusy(cmd);
1017                 goto SKIP_ALL_THIS_CRAP;
1018         }
1019 #endif
1020
1021         /*
1022          * If we're not logged in, but we have HTTP Authentication data,
1023          * try logging in to Citadel using that.
1024          */
1025         if ((!WC->logged_in)
1026            && (strlen(c_httpauth_user) > 0)
1027            && (strlen(c_httpauth_pass) > 0)) {
1028                 serv_printf("USER %s", c_httpauth_user);
1029                 serv_getln(buf, sizeof buf);
1030                 if (buf[0] == '3') {
1031                         serv_printf("PASS %s", c_httpauth_pass);
1032                         serv_getln(buf, sizeof buf);
1033                         if (buf[0] == '2') {
1034                                 become_logged_in(c_httpauth_user,
1035                                                 c_httpauth_pass, buf);
1036                                 safestrncpy(WC->httpauth_user, c_httpauth_user, sizeof WC->httpauth_user);
1037                                 safestrncpy(WC->httpauth_pass, c_httpauth_pass, sizeof WC->httpauth_pass);
1038                         } else {
1039                                 /* Should only display when password is wrong */
1040                                 authorization_required(&buf[4]);
1041                                 goto SKIP_ALL_THIS_CRAP;
1042                         }
1043                 }
1044         }
1045
1046         /* This needs to run early */
1047         if (!strcasecmp(action, "rss")) {
1048                 display_rss(bstr("room"));
1049                 goto SKIP_ALL_THIS_CRAP;
1050         }
1051
1052         /*
1053          * The GroupDAV stuff relies on HTTP authentication instead of
1054          * our session's authentication.
1055          */
1056         if (!strncasecmp(action, "groupdav", 8)) {
1057                 groupdav_main(req, ContentType, /* do GroupDAV methods */
1058                         ContentLength, content+body_start);
1059                 if (!WC->logged_in) {
1060                         WC->killthis = 1;       /* If not logged in, don't */
1061                 }                               /* keep the session active */
1062                 goto SKIP_ALL_THIS_CRAP;
1063         }
1064
1065
1066         /*
1067          * Automatically send requests with any method other than GET or
1068          * POST to the GroupDAV code as well.
1069          */
1070         if ((strcasecmp(request_method, "GET")) && (strcasecmp(request_method, "POST"))) {
1071                 groupdav_main(req, ContentType, /* do GroupDAV methods */
1072                         ContentLength, content+body_start);
1073                 if (!WC->logged_in) {
1074                         WC->killthis = 1;       /* If not logged in, don't */
1075                 }                               /* keep the session active */
1076                 goto SKIP_ALL_THIS_CRAP;
1077         }
1078
1079         /*
1080          * If we're not logged in, but we have username and password cookies
1081          * supplied by the browser, try using them to log in.
1082          */
1083         if ((!WC->logged_in)
1084            && (strlen(c_username) > 0)
1085            && (strlen(c_password) > 0)) {
1086                 serv_printf("USER %s", c_username);
1087                 serv_getln(buf, sizeof buf);
1088                 if (buf[0] == '3') {
1089                         serv_printf("PASS %s", c_password);
1090                         serv_getln(buf, sizeof buf);
1091                         if (buf[0] == '2') {
1092                                 become_logged_in(c_username, c_password, buf);
1093                         }
1094                 }
1095         }
1096         /*
1097          * If we don't have a current room, but a cookie specifying the
1098          * current room is supplied, make an effort to go there.
1099          */
1100         if ((strlen(WC->wc_roomname) == 0) && (strlen(c_roomname) > 0)) {
1101                 serv_printf("GOTO %s", c_roomname);
1102                 serv_getln(buf, sizeof buf);
1103                 if (buf[0] == '2') {
1104                         safestrncpy(WC->wc_roomname, c_roomname, sizeof WC->wc_roomname);
1105                 }
1106         }
1107
1108         /*
1109          * If there are instant messages waiting, retrieve them for display.
1110          */
1111         check_for_instant_messages();
1112
1113         if (!strcasecmp(action, "image")) {
1114                 output_image();
1115
1116         /*
1117          * All functions handled below this point ... make sure we log in
1118          * before doing anything else!
1119          */
1120         } else if ((!WC->logged_in) && (!strcasecmp(action, "login"))) {
1121                 do_login();
1122         } else if (!WC->logged_in) {
1123                 display_login(NULL);
1124         }
1125
1126         /*
1127          * Various commands...
1128          */
1129
1130         else if (!strcasecmp(action, "do_welcome")) {
1131                 do_welcome();
1132         } else if (!strcasecmp(action, "blank")) {
1133                 blank_page();
1134         } else if (!strcasecmp(action, "do_template")) {
1135                 url_do_template();
1136         } else if (!strcasecmp(action, "display_aide_menu")) {
1137                 display_aide_menu();
1138         } else if (!strcasecmp(action, "display_main_menu")) {
1139                 display_main_menu();
1140         } else if (!strcasecmp(action, "who")) {
1141                 who();
1142         } else if (!strcasecmp(action, "who_inner_html")) {
1143                 who_inner_html();
1144         } else if (!strcasecmp(action, "knrooms")) {
1145                 knrooms();
1146         } else if (!strcasecmp(action, "gotonext")) {
1147                 slrp_highest();
1148                 gotonext();
1149         } else if (!strcasecmp(action, "skip")) {
1150                 gotonext();
1151         } else if (!strcasecmp(action, "ungoto")) {
1152                 ungoto();
1153         } else if (!strcasecmp(action, "dotgoto")) {
1154                 if (WC->wc_view != VIEW_MAILBOX) {      /* dotgoto acts like dotskip when we're in a mailbox view */
1155                         slrp_highest();
1156                 }
1157                 smart_goto(bstr("room"));
1158         } else if (!strcasecmp(action, "dotskip")) {
1159                 smart_goto(bstr("room"));
1160         } else if (!strcasecmp(action, "termquit")) {
1161                 do_logout();
1162         } else if (!strcasecmp(action, "readnew")) {
1163                 readloop("readnew");
1164         } else if (!strcasecmp(action, "readold")) {
1165                 readloop("readold");
1166         } else if (!strcasecmp(action, "readfwd")) {
1167                 readloop("readfwd");
1168         } else if (!strcasecmp(action, "headers")) {
1169                 readloop("headers");
1170         } else if (!strcasecmp(action, "msg")) {
1171                 embed_message();
1172         } else if (!strcasecmp(action, "display_enter")) {
1173                 display_enter();
1174         } else if (!strcasecmp(action, "post")) {
1175                 post_message();
1176         } else if (!strcasecmp(action, "move_msg")) {
1177                 move_msg();
1178         } else if (!strcasecmp(action, "delete_msg")) {
1179                 delete_msg();
1180         } else if (!strcasecmp(action, "userlist")) {
1181                 userlist();
1182         } else if (!strcasecmp(action, "showuser")) {
1183                 showuser();
1184         } else if (!strcasecmp(action, "display_page")) {
1185                 display_page();
1186         } else if (!strcasecmp(action, "page_user")) {
1187                 page_user();
1188         } else if (!strcasecmp(action, "chat")) {
1189                 do_chat();
1190         } else if (!strcasecmp(action, "display_private")) {
1191                 display_private("", 0);
1192         } else if (!strcasecmp(action, "goto_private")) {
1193                 goto_private();
1194         } else if (!strcasecmp(action, "zapped_list")) {
1195                 zapped_list();
1196         } else if (!strcasecmp(action, "display_zap")) {
1197                 display_zap();
1198         } else if (!strcasecmp(action, "zap")) {
1199                 zap();
1200         } else if (!strcasecmp(action, "display_entroom")) {
1201                 display_entroom();
1202         } else if (!strcasecmp(action, "entroom")) {
1203                 entroom();
1204         } else if (!strcasecmp(action, "display_whok")) {
1205                 display_whok();
1206         } else if (!strcasecmp(action, "do_invt_kick")) {
1207                 do_invt_kick();
1208         } else if (!strcasecmp(action, "display_editroom")) {
1209                 display_editroom();
1210         } else if (!strcasecmp(action, "netedit")) {
1211                 netedit();
1212         } else if (!strcasecmp(action, "editroom")) {
1213                 editroom();
1214         } else if (!strcasecmp(action, "display_editinfo")) {
1215                 display_edit(_("Room info"), "EINF 0", "RINF", "/editinfo", 1);
1216         } else if (!strcasecmp(action, "editinfo")) {
1217                 save_edit(_("Room info"), "EINF 1", 1);
1218         } else if (!strcasecmp(action, "display_editbio")) {
1219                 sprintf(buf, "RBIO %s", WC->wc_username);
1220                 display_edit(_("Your bio"), "NOOP", buf, "editbio", 3);
1221         } else if (!strcasecmp(action, "editbio")) {
1222                 save_edit(_("Your bio"), "EBIO", 0);
1223         } else if (!strcasecmp(action, "confirm_move_msg")) {
1224                 confirm_move_msg();
1225         } else if (!strcasecmp(action, "delete_room")) {
1226                 delete_room();
1227         } else if (!strcasecmp(action, "validate")) {
1228                 validate();
1229         } else if (!strcasecmp(action, "display_editpic")) {
1230                 display_graphics_upload(_("your photo"),
1231                                         "UIMG 0|_userpic_",
1232                                         "/editpic");
1233         } else if (!strcasecmp(action, "editpic")) {
1234                 do_graphics_upload("UIMG 1|_userpic_");
1235         } else if (!strcasecmp(action, "display_editroompic")) {
1236                 display_graphics_upload(_("the icon for this room"),
1237                                         "UIMG 0|_roompic_",
1238                                         "/editroompic");
1239         } else if (!strcasecmp(action, "editroompic")) {
1240                 do_graphics_upload("UIMG 1|_roompic_");
1241         } else if (!strcasecmp(action, "delete_floor")) {
1242                 delete_floor();
1243         } else if (!strcasecmp(action, "rename_floor")) {
1244                 rename_floor();
1245         } else if (!strcasecmp(action, "create_floor")) {
1246                 create_floor();
1247         } else if (!strcasecmp(action, "display_editfloorpic")) {
1248                 sprintf(buf, "UIMG 0|_floorpic_|%s",
1249                         bstr("which_floor"));
1250                 display_graphics_upload(_("the icon for this floor"),
1251                                         buf,
1252                                         "/editfloorpic");
1253         } else if (!strcasecmp(action, "editfloorpic")) {
1254                 sprintf(buf, "UIMG 1|_floorpic_|%s",
1255                         bstr("which_floor"));
1256                 do_graphics_upload(buf);
1257         } else if (!strcasecmp(action, "display_reg")) {
1258                 display_reg(0);
1259         } else if (!strcasecmp(action, "display_changepw")) {
1260                 display_changepw();
1261         } else if (!strcasecmp(action, "changepw")) {
1262                 changepw();
1263         } else if (!strcasecmp(action, "display_edit_node")) {
1264                 display_edit_node();
1265         } else if (!strcasecmp(action, "edit_node")) {
1266                 edit_node();
1267         } else if (!strcasecmp(action, "display_netconf")) {
1268                 display_netconf();
1269         } else if (!strcasecmp(action, "display_confirm_delete_node")) {
1270                 display_confirm_delete_node();
1271         } else if (!strcasecmp(action, "delete_node")) {
1272                 delete_node();
1273         } else if (!strcasecmp(action, "display_add_node")) {
1274                 display_add_node();
1275         } else if (!strcasecmp(action, "add_node")) {
1276                 add_node();
1277         } else if (!strcasecmp(action, "terminate_session")) {
1278                 slrp_highest();
1279                 terminate_session();
1280         } else if (!strcasecmp(action, "edit_me")) {
1281                 edit_me();
1282         } else if (!strcasecmp(action, "display_siteconfig")) {
1283                 display_siteconfig();
1284         } else if (!strcasecmp(action, "chat_recv")) {
1285                 chat_recv();
1286         } else if (!strcasecmp(action, "chat_send")) {
1287                 chat_send();
1288         } else if (!strcasecmp(action, "siteconfig")) {
1289                 siteconfig();
1290         } else if (!strcasecmp(action, "display_generic")) {
1291                 display_generic();
1292         } else if (!strcasecmp(action, "do_generic")) {
1293                 do_generic();
1294         } else if (!strcasecmp(action, "display_menubar")) {
1295                 display_menubar(1);
1296         } else if (!strcasecmp(action, "output_mimepart")) {
1297                 output_mimepart();
1298         } else if (!strcasecmp(action, "edit_vcard")) {
1299                 edit_vcard();
1300         } else if (!strcasecmp(action, "submit_vcard")) {
1301                 submit_vcard();
1302         } else if (!strcasecmp(action, "select_user_to_edit")) {
1303                 select_user_to_edit(NULL, NULL);
1304         } else if (!strcasecmp(action, "display_edituser")) {
1305                 display_edituser(NULL, 0);
1306         } else if (!strcasecmp(action, "edituser")) {
1307                 edituser();
1308         } else if (!strcasecmp(action, "create_user")) {
1309                 create_user();
1310         } else if (!strcasecmp(action, "changeview")) {
1311                 change_view();
1312         } else if (!strcasecmp(action, "do_stuff_to_msgs")) {
1313                 do_stuff_to_msgs();
1314         } else if (!strcasecmp(action, "change_start_page")) {
1315                 change_start_page();
1316         } else if (!strcasecmp(action, "display_floorconfig")) {
1317                 display_floorconfig(NULL);
1318         } else if (!strcasecmp(action, "toggle_self_service")) {
1319                 toggle_self_service();
1320 #ifdef WEBCIT_WITH_CALENDAR_SERVICE
1321         } else if (!strcasecmp(action, "display_edit_task")) {
1322                 display_edit_task();
1323         } else if (!strcasecmp(action, "save_task")) {
1324                 save_task();
1325         } else if (!strcasecmp(action, "display_edit_event")) {
1326                 display_edit_event();
1327         } else if (!strcasecmp(action, "save_event")) {
1328                 save_event();
1329         } else if (!strcasecmp(action, "respond_to_request")) {
1330                 respond_to_request();
1331         } else if (!strcasecmp(action, "handle_rsvp")) {
1332                 handle_rsvp();
1333 #endif
1334         } else if (!strcasecmp(action, "summary")) {
1335                 summary();
1336         } else if (!strcasecmp(action, "iconbar")) {
1337                 do_iconbar();
1338         } else if (!strcasecmp(action, "display_customize_iconbar")) {
1339                 display_customize_iconbar();
1340         } else if (!strcasecmp(action, "commit_iconbar")) {
1341                 commit_iconbar();
1342         } else if (!strcasecmp(action, "set_room_policy")) {
1343                 set_room_policy();
1344         } else if (!strcasecmp(action, "display_inetconf")) {
1345                 display_inetconf();
1346         } else if (!strcasecmp(action, "save_inetconf")) {
1347                 save_inetconf();
1348         } else if (!strcasecmp(action, "setup_wizard")) {
1349                 do_setup_wizard();
1350         } else if (!strcasecmp(action, "display_preferences")) {
1351                 display_preferences();
1352         } else if (!strcasecmp(action, "set_preferences")) {
1353                 set_preferences();
1354         } else if (!strcasecmp(action, "diagnostics")) {
1355                 output_headers(1, 1, 1, 0, 0, 0, 0);
1356                 wprintf("Session: %d<hr />\n", WC->wc_session);
1357                 wprintf("Command: <br /><PRE>\n");
1358                 escputs(cmd);
1359                 wprintf("</PRE><hr />\n");
1360                 wprintf("Variables: <br /><PRE>\n");
1361                 dump_vars();
1362                 wprintf("</PRE><hr />\n");
1363                 wDumpContent(1);
1364         }
1365         /* When all else fais, display the main menu. */
1366         else {
1367                 display_main_menu();
1368         }
1369
1370 SKIP_ALL_THIS_CRAP:
1371         fflush(stdout);
1372         if (content != NULL) {
1373                 free(content);
1374                 content = NULL;
1375         }
1376         free_urls();
1377         if (WC->upload_length > 0) {
1378                 free(WC->upload);
1379                 WC->upload_length = 0;
1380         }
1381
1382 }