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 if (strbuf[a] == '\'')
 308                         strcat(target, "&#39;");
 309                 else {
 310                         strncat(target, &strbuf[a], 1);
 311                 }
 312         }
 313 }
 314
 315 void msgescputs(char *strbuf) {
 316         char *outbuf;
 317
 318         if (strbuf == NULL) return;
 319         outbuf = malloc( (3 * strlen(strbuf)) + SIZ);
 320         msgesc(outbuf, strbuf);
 321         wprintf("%s", outbuf);
 322         free(outbuf);
 323 }
 324
 325
 326
 327
 328 /*
 329  * Output all that important stuff that the browser will want to see
 330  */
 331 void output_headers(    int do_httpheaders,     /* 1 = output HTTP headers                          */
 332                         int do_htmlhead,        /* 1 = output HTML <head> section and <body> opener */
 333
 334                         int do_room_banner,     /* 0=no, 1=yes,                                     */
 335                                                 /* 2 = I'm going to embed my own, so don't open the */
 336                                                 /*     <div id="content"> either.                   */
 337
 338                         int unset_cookies,      /* 1 = session is terminating, so unset the cookies */
 339                         int refresh30,          /* 1 = automatically refresh page every 30 seconds  */
 340                         int suppress_check,     /* 1 = suppress check for instant messages          */
 341                         int cache               /* 1 = allow browser to cache this page             */
 342 ) {
 343         char cookie[SIZ];
 344         char httpnow[SIZ];
 345
 346         wprintf("HTTP/1.0 200 OK\n");
 347         httpdate(httpnow, time(NULL));
 348
 349         if (do_httpheaders) {
 350                 wprintf("Content-type: text/html; charset=utf-8\r\n"
 351                         "Server: %s / %s\n"
 352                         "Connection: close\r\n",
 353                         SERVER, serv_info.serv_software
 354                 );
 355         }
 356
 357         if (cache) {
 358                 wprintf("Pragma: public\r\n"
 359                         "Cache-Control: max-age=3600, must-revalidate\r\n"
 360                         "Last-modified: %s\r\n",
 361                         httpnow
 362                 );
 363         }
 364         else {
 365                 wprintf("Pragma: no-cache\r\n"
 366                         "Cache-Control: no-store\r\n"
 367                 );
 368         }
 369
 370         stuff_to_cookie(cookie, WC->wc_session, WC->wc_username,
 371                         WC->wc_password, WC->wc_roomname);
 372
 373         if (unset_cookies) {
 374                 wprintf("Set-cookie: webcit=%s; path=/\r\n", unset);
 375         } else {
 376                 wprintf("Set-cookie: webcit=%s; path=/\r\n", cookie);
 377                 if (server_cookie != NULL) {
 378                         wprintf("%s\n", server_cookie);
 379                 }
 380         }
 381
 382         if (do_htmlhead) {
 383                 /* wprintf("\n"); */
 384                 begin_burst();
 385
 386                 if (refresh30) {
 387                         svprintf("REFRESHTAG", WCS_STRING, "%s",
 388                                 "<meta http-equiv=\"refresh\" content=\"30\" />\n");
 389                 }
 390                 else {
 391                         svprintf("REFRESHTAG", WCS_STRING, "%s",
 392                                 "<meta http-equiv=\"refresh\" content=\"500363689;\" />\n");
 393                 }
 394
 395                 do_template("head");
 396         }
 397
 398         /* ICONBAR */
 399         if (do_htmlhead) {
 400
 401                 if (WC->HaveInstantMessages) {
 402                         wprintf("<div id=\"page_popup\">\n");
 403                         page_popup();
 404                         wprintf("</div>\n");
 405                 }
 406                 if (strlen(WC->ImportantMessage) > 0) {
 407                         wprintf("<div id=\"important_message\">\n");
 408                         wprintf("<SPAN CLASS=\"imsg\">"
 409                                 "%s</SPAN><br />\n", WC->ImportantMessage);
 410                         wprintf("</div>\n");
 411                         wprintf("<script type=\"text/javascript\">\n"
 412                                 "        setTimeout('hide_imsg_popup()', 3000); \n"
 413                                 "</script>\n");
 414                         safestrncpy(WC->ImportantMessage, "", sizeof WC->ImportantMessage);
 415                 }
 416                 if ( (WC->logged_in) && (!unset_cookies) ) {
 417                         wprintf("<div id=\"iconbar\">");
 418                         do_iconbar();
 419                         wprintf("</div>\n");
 420                 }
 421                 if (do_room_banner == 1) {
 422                         wprintf("<div id=\"banner\">\n");
 423                         embed_room_banner(NULL, navbar_default);
 424                         wprintf("</div>\n");
 425                 }
 426         }
 427
 428         if (do_room_banner == 1) {
 429                 wprintf("<div id=\"content\">\n");
 430         }
 431 }
 432
 433
 434 /*
 435  * Generic function to do an HTTP redirect.  Easy and fun.
 436  */
 437 void http_redirect(char *whichpage) {
 438         wprintf("HTTP/1.0 302 Moved Temporarily\n");
 439         wprintf("Location: %s\r\n", whichpage);
 440         wprintf("URI: %s\r\n", whichpage);
 441         wprintf("Content-type: text/html; charset=utf-8\r\n\r\n");
 442         wprintf("<html><body>");
 443         wprintf("Go <A HREF=\"%s\">here</A>.", whichpage);
 444         wprintf("</body></html>\n");
 445 }
 446
 447
 448
 449 void check_for_instant_messages()
 450 {
 451         char buf[SIZ];
 452
 453         serv_puts("NOOP");
 454         serv_getln(buf, sizeof buf);
 455         if (buf[3] == '*') WC->HaveInstantMessages = 1;
 456 }
 457
 458
 459
 460
 461 /*
 462  * Output a piece of content to the web browser
 463  */
 464 void http_transmit_thing(char *thing, size_t length, char *content_type,
 465                          int is_static) {
 466
 467         output_headers(0, 0, 0, 0, 0, 0, is_static);
 468
 469         wprintf("Content-type: %s\r\n"
 470                 "Server: %s\r\n"
 471                 "Connection: close\r\n",
 472                 content_type,
 473                 SERVER);
 474
 475 #ifdef HAVE_ZLIB
 476         /* If we can send the data out compressed, please do so. */
 477         if (WC->gzip_ok) {
 478                 char *compressed_data = NULL;
 479                 uLongf compressed_len;
 480
 481                 compressed_len = (uLongf) ((length * 101) / 100) + 100;
 482                 compressed_data = malloc(compressed_len);
 483
 484                 if (compress_gzip((Bytef *) compressed_data,
 485                                   &compressed_len,
 486                                   (Bytef *) thing,
 487                                   (uLongf) length, Z_BEST_SPEED) == Z_OK) {
 488                         wprintf("Content-encoding: gzip\r\n"
 489                                 "Content-length: %ld\r\n"
 490                                 "\r\n",
 491                                 (long) compressed_len
 492                         );
 493                         client_write(compressed_data, (size_t)compressed_len);
 494                         free(compressed_data);
 495                         return;
 496                 }
 497         }
 498 #endif
 499
 500         /* No compression ... just send it out as-is */
 501         wprintf("Content-length: %ld\r\n"
 502                 "\r\n",
 503                 (long) length
 504         );
 505         client_write(thing, (size_t)length);
 506 }
 507
 508
 509
 510
 511 void output_static(char *what)
 512 {
 513         char buf[256];
 514         FILE *fp;
 515         struct stat statbuf;
 516         off_t bytes;
 517         char *bigbuffer;
 518         char content_type[128];
 519
 520         sprintf(buf, "static/%s", what);
 521         fp = fopen(buf, "rb");
 522         if (fp == NULL) {
 523                 wprintf("HTTP/1.0 404 %s\n", strerror(errno));
 524                 wprintf("Content-Type: text/plain\r\n");
 525                 wprintf("\r\n");
 526                 wprintf("Cannot open %s: %s\n", what, strerror(errno));
 527         } else {
 528                 if (!strncasecmp(&what[strlen(what) - 4], ".gif", 4))
 529                         safestrncpy(content_type, "image/gif", sizeof content_type);
 530                 else if (!strncasecmp(&what[strlen(what) - 4], ".txt", 4))
 531                         safestrncpy(content_type, "text/plain", sizeof content_type);
 532                 else if (!strncasecmp(&what[strlen(what) - 4], ".css", 4))
 533                         safestrncpy(content_type, "text/css", sizeof content_type);
 534                 else if (!strncasecmp(&what[strlen(what) - 4], ".jpg", 4))
 535                         safestrncpy(content_type, "image/jpeg", sizeof content_type);
 536                 else if (!strncasecmp(&what[strlen(what) - 4], ".png", 4))
 537                         safestrncpy(content_type, "image/png", sizeof content_type);
 538                 else if (!strncasecmp(&what[strlen(what) - 4], ".ico", 4))
 539                         safestrncpy(content_type, "image/x-icon", sizeof content_type);
 540                 else if (!strncasecmp(&what[strlen(what) - 5], ".html", 5))
 541                         safestrncpy(content_type, "text/html", sizeof content_type);
 542                 else if (!strncasecmp(&what[strlen(what) - 4], ".htm", 4))
 543                         safestrncpy(content_type, "text/html", sizeof content_type);
 544                 else if (!strncasecmp(&what[strlen(what) - 4], ".wml", 4))
 545                         safestrncpy(content_type, "text/vnd.wap.wml", sizeof content_type);
 546                 else if (!strncasecmp(&what[strlen(what) - 5], ".wmls", 5))
 547                         safestrncpy(content_type, "text/vnd.wap.wmlscript", sizeof content_type);
 548                 else if (!strncasecmp(&what[strlen(what) - 5], ".wmlc", 5))
 549                         safestrncpy(content_type, "application/vnd.wap.wmlc", sizeof content_type);
 550                 else if (!strncasecmp(&what[strlen(what) - 6], ".wmlsc", 6))
 551                         safestrncpy(content_type, "application/vnd.wap.wmlscriptc", sizeof content_type);
 552                 else if (!strncasecmp(&what[strlen(what) - 5], ".wbmp", 5))
 553                         safestrncpy(content_type, "image/vnd.wap.wbmp", sizeof content_type);
 554                 else if (!strncasecmp(&what[strlen(what) - 3], ".js", 3))
 555                         safestrncpy(content_type, "text/javascript", sizeof content_type);
 556                 else
 557                         safestrncpy(content_type, "application/octet-stream", sizeof content_type);
 558
 559                 fstat(fileno(fp), &statbuf);
 560                 bytes = statbuf.st_size;
 561                 bigbuffer = malloc(bytes + 2);
 562                 fread(bigbuffer, bytes, 1, fp);
 563                 fclose(fp);
 564
 565                 http_transmit_thing(bigbuffer, (size_t)bytes, content_type, 1);
 566                 free(bigbuffer);
 567         }
 568         if (!strcasecmp(bstr("force_close_session"), "yes")) {
 569                 end_webcit_session();
 570         }
 571 }
 572
 573
 574 /*
 575  * When the browser requests an image file from the Citadel server,
 576  * this function is called to transmit it.
 577  */
 578 void output_image()
 579 {
 580         char buf[SIZ];
 581         char *xferbuf = NULL;
 582         off_t bytes;
 583
 584         serv_printf("OIMG %s|%s", bstr("name"), bstr("parm"));
 585         serv_getln(buf, sizeof buf);
 586         if (buf[0] == '2') {
 587                 bytes = extract_long(&buf[4], 0);
 588                 xferbuf = malloc(bytes + 2);
 589
 590                 /* Read it from the server */
 591                 read_server_binary(xferbuf, bytes);
 592                 serv_puts("CLOS");
 593                 serv_getln(buf, sizeof buf);
 594
 595                 /* Write it to the browser */
 596                 http_transmit_thing(xferbuf, (size_t)bytes, "image/gif", 0);
 597                 free(xferbuf);
 598
 599         } else {
 600                 /* Instead of an ugly 404, send a 1x1 transparent GIF
 601                  * when there's no such image on the server.
 602                  */
 603                 output_static("blank.gif");
 604         }
 605
 606
 607
 608 }
 609
 610 /*
 611  * Generic function to output an arbitrary MIME part from an arbitrary
 612  * message number on the server.
 613  */
 614 void output_mimepart()
 615 {
 616         char buf[SIZ];
 617         off_t bytes;
 618         char content_type[SIZ];
 619         char *content = NULL;
 620
 621         serv_printf("OPNA %s|%s", bstr("msgnum"), bstr("partnum"));
 622         serv_getln(buf, sizeof buf);
 623         if (buf[0] == '2') {
 624                 bytes = extract_long(&buf[4], 0);
 625                 content = malloc(bytes + 2);
 626                 extract_token(content_type, &buf[4], 3, '|', sizeof content_type);
 627                 output_headers(0, 0, 0, 0, 0, 0, 0);
 628                 read_server_binary(content, bytes);
 629                 serv_puts("CLOS");
 630                 serv_getln(buf, sizeof buf);
 631                 http_transmit_thing(content, bytes, content_type, 0);
 632                 free(content);
 633         } else {
 634                 wprintf("HTTP/1.0 404 %s\n", &buf[4]);
 635                 output_headers(0, 0, 0, 0, 0, 0, 0);
 636                 wprintf("Content-Type: text/plain\r\n");
 637                 wprintf("\r\n");
 638                 wprintf(_("An error occurred while retrieving this part: %s\n"), &buf[4]);
 639         }
 640
 641 }
 642
 643
 644 /*
 645  * Read any MIME part of a message, from the server, into memory.
 646  */
 647 char *load_mimepart(long msgnum, char *partnum)
 648 {
 649         char buf[SIZ];
 650         off_t bytes;
 651         char content_type[SIZ];
 652         char *content;
 653
 654         serv_printf("OPNA %ld|%s", msgnum, partnum);
 655         serv_getln(buf, sizeof buf);
 656         if (buf[0] == '2') {
 657                 bytes = extract_long(&buf[4], 0);
 658                 extract_token(content_type, &buf[4], 3, '|', sizeof content_type);
 659
 660                 content = malloc(bytes + 2);
 661                 read_server_binary(content, bytes);
 662
 663                 serv_puts("CLOS");
 664                 serv_getln(buf, sizeof buf);
 665                 content[bytes] = 0;     /* null terminate for good measure */
 666                 return(content);
 667         }
 668         else {
 669                 return(NULL);
 670         }
 671
 672 }
 673
 674
 675 /*
 676  * Convenience functions to display a page containing only a string
 677  */
 678 void convenience_page(char *titlebarcolor, char *titlebarmsg, char *messagetext)
 679 {
 680         wprintf("HTTP/1.0 200 OK\n");
 681         output_headers(1, 1, 2, 0, 0, 0, 0);
 682         wprintf("<div id=\"banner\">\n");
 683         wprintf("<TABLE WIDTH=100%% BORDER=0 BGCOLOR=\"#%s\"><TR><TD>", titlebarcolor);
 684         wprintf("<SPAN CLASS=\"titlebar\">%s</SPAN>\n", titlebarmsg);
 685         wprintf("</TD></TR></TABLE>\n");
 686         wprintf("</div>\n<div id=\"content\">\n");
 687         escputs(messagetext);
 688
 689         wprintf("<hr />\n");
 690         wDumpContent(1);
 691 }
 692
 693
 694 /*
 695  * Display a blank page.
 696  */
 697 void blank_page(void) {
 698         output_headers(1, 1, 0, 0, 1, 0, 0);
 699         wDumpContent(2);
 700 }
 701
 702
 703 /*
 704  * A template has been requested
 705  */
 706 void url_do_template(void) {
 707         do_template(bstr("template"));
 708 }
 709
 710
 711
 712 /*
 713  * Offer to make any page the user's "start page."
 714  */
 715 void offer_start_page(void) {
 716         wprintf("<A HREF=\"/change_start_page?startpage=");
 717         urlescputs(WC->this_page);
 718         wprintf("\"><FONT SIZE=-2 COLOR=\"#AAAAAA\">");
 719         wprintf(_("Make this my start page"));
 720         wprintf("</FONT></A>");
 721         wprintf("<br/><a href=\"/rss?room=");
 722         urlescputs(WC->wc_roomname);
 723         wprintf("\" title=\"RSS 2.0 feed for ");
 724         escputs(WC->wc_roomname);
 725         wprintf("\"><img alt=\"RSS\" border=\"0\" src=\"/static/xml_button.gif\"/></a>\n");
 726 }
 727
 728
 729 /*
 730  * Change the user's start page
 731  */
 732 void change_start_page(void) {
 733
 734         if (bstr("startpage") == NULL) {
 735                 safestrncpy(WC->ImportantMessage,
 736                         _("You no longer have a start page selected."),
 737                         sizeof WC->ImportantMessage);
 738                 display_main_menu();
 739                 return;
 740         }
 741
 742         set_preference("startpage", bstr("startpage"), 1);
 743
 744         output_headers(1, 1, 0, 0, 0, 0, 0);
 745         do_template("newstartpage");
 746         wDumpContent(1);
 747 }
 748
 749
 750
 751
 752 void display_success(char *successmessage)
 753 {
 754         convenience_page("007700", "OK", successmessage);
 755 }
 756
 757
 758 /* Authorization required page */
 759 /* This is probably temporary and should be revisited */
 760 void authorization_required(const char *message)
 761 {
 762         wprintf("HTTP/1.0 401 Authorization Required\r\n");
 763         wprintf("WWW-Authenticate: Basic realm=\"\"\r\n", serv_info.serv_humannode);
 764         wprintf("Content-Type: text/html\r\n\r\n");
 765         wprintf("<h1>");
 766         wprintf(_("Authorization Required"));
 767         wprintf("</h1>\r\n");
 768         wprintf(_("The resource you requested requires a valid username and password. "
 769                 "You could not be logged in: %s\n"), message);
 770         wDumpContent(0);
 771 }
 772
 773
 774 void upload_handler(char *name, char *filename, char *partnum, char *disp,
 775                         void *content, char *cbtype, char *cbcharset,
 776                         size_t length, char *encoding, void *userdata)
 777 {
 778         struct urlcontent *u;
 779
 780         lprintf(9, "upload_handler() name=%s, type=%s, len=%d\n",
 781                 name, cbtype, length);
 782
 783         /* Form fields */
 784         if ( (length > 0) && (strlen(cbtype) == 0) ) {
 785                 u = (struct urlcontent *) malloc(sizeof(struct urlcontent));
 786                 u->next = WC->urlstrings;
 787                 WC->urlstrings = u;
 788                 safestrncpy(u->url_key, name, sizeof(u->url_key));
 789                 u->url_data = malloc(length + 1);
 790                 memcpy(u->url_data, content, length);
 791                 u->url_data[length] = 0;
 792         }
 793
 794         /* Uploaded files */
 795         if ( (length > 0) && (strlen(cbtype) > 0) ) {
 796                 WC->upload = malloc(length);
 797                 if (WC->upload != NULL) {
 798                         WC->upload_length = length;
 799                         safestrncpy(WC->upload_filename, filename,
 800                                         sizeof(WC->upload_filename));
 801                         safestrncpy(WC->upload_content_type, cbtype,
 802                                         sizeof(WC->upload_content_type));
 803                         memcpy(WC->upload, content, length);
 804                 }
 805                 else {
 806                         lprintf(3, "malloc() failed: %s\n", strerror(errno));
 807                 }
 808         }
 809
 810 }
 811
 812
 813
 814
 815 /*
 816  * Entry point for WebCit transaction
 817  */
 818 void session_loop(struct httprequest *req)
 819 {
 820         char cmd[1024];
 821         char action[128];
 822         char arg1[128];
 823         char arg2[128];
 824         char arg3[128];
 825         char buf[SIZ];
 826         int a, b;
 827         int ContentLength = 0;
 828         int BytesRead = 0;
 829         char ContentType[512];
 830         char *content = NULL;
 831         char *content_end = NULL;
 832         struct httprequest *hptr;
 833         char browser_host[SIZ];
 834         char user_agent[SIZ];
 835         int body_start = 0;
 836
 837         /* We stuff these with the values coming from the client cookies,
 838          * so we can use them to reconnect a timed out session if we have to.
 839          */
 840         char c_username[SIZ];
 841         char c_password[SIZ];
 842         char c_roomname[SIZ];
 843         char c_httpauth_string[SIZ];
 844         char c_httpauth_user[SIZ];
 845         char c_httpauth_pass[SIZ];
 846         char cookie[SIZ];
 847
 848         safestrncpy(c_username, "", sizeof c_username);
 849         safestrncpy(c_password, "", sizeof c_password);
 850         safestrncpy(c_roomname, "", sizeof c_roomname);
 851         safestrncpy(c_httpauth_string, "", sizeof c_httpauth_string);
 852         safestrncpy(c_httpauth_user, DEFAULT_HTTPAUTH_USER, sizeof c_httpauth_user);
 853         safestrncpy(c_httpauth_pass, DEFAULT_HTTPAUTH_PASS, sizeof c_httpauth_pass);
 854
 855         WC->upload_length = 0;
 856         WC->upload = NULL;
 857         WC->vars = NULL;
 858
 859         WC->is_wap = 0;
 860
 861         hptr = req;
 862         if (hptr == NULL) return;
 863
 864         safestrncpy(cmd, hptr->line, sizeof cmd);
 865         hptr = hptr->next;
 866         extract_token(request_method, cmd, 0, ' ', sizeof request_method);
 867
 868         /* Figure out the action */
 869         extract_token(action, cmd, 1, '/', sizeof action);
 870         if (strstr(action, "?")) *strstr(action, "?") = 0;
 871         if (strstr(action, "&")) *strstr(action, "&") = 0;
 872         if (strstr(action, " ")) *strstr(action, " ") = 0;
 873
 874         extract_token(arg1, cmd, 2, '/', sizeof arg1);
 875         if (strstr(arg1, "?")) *strstr(arg1, "?") = 0;
 876         if (strstr(arg1, "&")) *strstr(arg1, "&") = 0;
 877         if (strstr(arg1, " ")) *strstr(arg1, " ") = 0;
 878
 879         extract_token(arg2, cmd, 3, '/', sizeof arg2);
 880         if (strstr(arg2, "?")) *strstr(arg2, "?") = 0;
 881         if (strstr(arg2, "&")) *strstr(arg2, "&") = 0;
 882         if (strstr(arg2, " ")) *strstr(arg2, " ") = 0;
 883
 884         extract_token(arg3, cmd, 4, '/', sizeof arg3);
 885         if (strstr(arg3, "?")) *strstr(arg3, "?") = 0;
 886         if (strstr(arg3, "&")) *strstr(arg3, "&") = 0;
 887         if (strstr(arg3, " ")) *strstr(arg3, " ") = 0;
 888
 889         while (hptr != NULL) {
 890                 safestrncpy(buf, hptr->line, sizeof buf);
 891                 hptr = hptr->next;
 892
 893                 if (!strncasecmp(buf, "Cookie: webcit=", 15)) {
 894                         safestrncpy(cookie, &buf[15], sizeof cookie);
 895                         cookie_to_stuff(cookie, NULL,
 896                                         c_username, sizeof c_username,
 897                                         c_password, sizeof c_password,
 898                                         c_roomname, sizeof c_roomname);
 899                 }
 900                 else if (!strncasecmp(buf, "Authorization: Basic ", 21)) {
 901                         CtdlDecodeBase64(c_httpauth_string, &buf[21], strlen(&buf[21]));
 902                         extract_token(c_httpauth_user, c_httpauth_string, 0, ':', sizeof c_httpauth_user);
 903                         extract_token(c_httpauth_pass, c_httpauth_string, 1, ':', sizeof c_httpauth_pass);
 904                 }
 905                 else if (!strncasecmp(buf, "Content-length: ", 16)) {
 906                         ContentLength = atoi(&buf[16]);
 907                 }
 908                 else if (!strncasecmp(buf, "Content-type: ", 14)) {
 909                         safestrncpy(ContentType, &buf[14], sizeof ContentType);
 910                 }
 911                 else if (!strncasecmp(buf, "User-agent: ", 12)) {
 912                         safestrncpy(user_agent, &buf[12], sizeof user_agent);
 913                 }
 914                 else if (!strncasecmp(buf, "Host: ", 6)) {
 915                         safestrncpy(WC->http_host, &buf[6], sizeof WC->http_host);
 916                 }
 917                 /* Only WAP gateways explicitly name this content-type */
 918                 else if (strstr(buf, "text/vnd.wap.wml")) {
 919                         WC->is_wap = 1;
 920                 }
 921         }
 922
 923         if (ContentLength > 0) {
 924                 content = malloc(ContentLength + SIZ);
 925                 memset(content, 0, ContentLength + SIZ);
 926                 sprintf(content, "Content-type: %s\n"
 927                                 "Content-length: %d\n\n",
 928                                 ContentType, ContentLength);
 929                 body_start = strlen(content);
 930
 931                 /* Read the entire input data at once. */
 932                 client_read(WC->http_sock, &content[BytesRead+body_start],
 933                         ContentLength);
 934
 935                 if (!strncasecmp(ContentType,
 936                               "application/x-www-form-urlencoded", 33)) {
 937                         addurls(&content[body_start]);
 938                 } else if (!strncasecmp(ContentType, "multipart", 9)) {
 939                         content_end = content + ContentLength + body_start;
 940                         mime_parser(content, content_end, *upload_handler,
 941                                         NULL, NULL, NULL, 0);
 942                 }
 943         } else {
 944                 content = NULL;
 945         }
 946
 947         /* make a note of where we are in case the user wants to save it */
 948         safestrncpy(WC->this_page, cmd, sizeof(WC->this_page));
 949         remove_token(WC->this_page, 2, ' ');
 950         remove_token(WC->this_page, 0, ' ');
 951
 952         /* If there are variables in the URL, we must grab them now */
 953         for (a = 0; a < strlen(cmd); ++a) {
 954                 if ((cmd[a] == '?') || (cmd[a] == '&')) {
 955                         for (b = a; b < strlen(cmd); ++b)
 956                                 if (isspace(cmd[b]))
 957                                         cmd[b] = 0;
 958                         addurls(&cmd[a + 1]);
 959                         cmd[a] = 0;
 960                 }
 961         }
 962
 963
 964         /* Static content can be sent without connecting to Citadel. */
 965         if (!strcasecmp(action, "static")) {
 966                 safestrncpy(buf, arg1, sizeof buf);
 967                 for (a = 0; a < strlen(buf); ++a)
 968                         if (isspace(buf[a]))
 969                                 buf[a] = 0;
 970                 output_static(buf);
 971                 goto SKIP_ALL_THIS_CRAP;        /* Don't try to connect */
 972         }
 973
 974         /*
 975          * If we're not connected to a Citadel server, try to hook up the
 976          * connection now.
 977          */
 978         if (!WC->connected) {
 979                 if (!strcasecmp(ctdlhost, "uds")) {
 980                         /* unix domain socket */
 981                         sprintf(buf, "%s/citadel.socket", ctdlport);
 982                         WC->serv_sock = uds_connectsock(buf);
 983                 }
 984                 else {
 985                         /* tcp socket */
 986                         WC->serv_sock = tcp_connectsock(ctdlhost, ctdlport);
 987                 }
 988
 989                 if (WC->serv_sock < 0) {
 990                         do_logout();
 991                         goto SKIP_ALL_THIS_CRAP;
 992                 }
 993                 else {
 994                         WC->connected = 1;
 995                         serv_getln(buf, sizeof buf);    /* get the server welcome message */
 996                         locate_host(browser_host, WC->http_sock);
 997                         get_serv_info(browser_host, user_agent);
 998                         if (serv_info.serv_rev_level < MINIMUM_CIT_VERSION) {
 999                                 wprintf(_("You are connected to a Citadel "
1000                                         "server running Citadel %d.%02d. \n"
1001                                         "In order to run this version of WebCit "
1002                                         "you must also have Citadel %d.%02d or"
1003                                         " newer.\n\n\n"),
1004                                                 serv_info.serv_rev_level / 100,
1005                                                 serv_info.serv_rev_level % 100,
1006                                                 MINIMUM_CIT_VERSION / 100,
1007                                                 MINIMUM_CIT_VERSION % 100
1008                                         );
1009                                 end_webcit_session();
1010                                 goto SKIP_ALL_THIS_CRAP;
1011                         }
1012                 }
1013         }
1014
1015         /*
1016          * Functions which can be performed without logging in
1017          */
1018         if (!strcasecmp(action, "listsub")) {
1019                 do_listsub();
1020                 goto SKIP_ALL_THIS_CRAP;
1021         }
1022 #ifdef WEBCIT_WITH_CALENDAR_SERVICE
1023         if (!strcasecmp(action, "freebusy")) {
1024                 do_freebusy(cmd);
1025                 goto SKIP_ALL_THIS_CRAP;
1026         }
1027 #endif
1028
1029         /*
1030          * If we're not logged in, but we have HTTP Authentication data,
1031          * try logging in to Citadel using that.
1032          */
1033         if ((!WC->logged_in)
1034            && (strlen(c_httpauth_user) > 0)
1035            && (strlen(c_httpauth_pass) > 0)) {
1036                 serv_printf("USER %s", c_httpauth_user);
1037                 serv_getln(buf, sizeof buf);
1038                 if (buf[0] == '3') {
1039                         serv_printf("PASS %s", c_httpauth_pass);
1040                         serv_getln(buf, sizeof buf);
1041                         if (buf[0] == '2') {
1042                                 become_logged_in(c_httpauth_user,
1043                                                 c_httpauth_pass, buf);
1044                                 safestrncpy(WC->httpauth_user, c_httpauth_user, sizeof WC->httpauth_user);
1045                                 safestrncpy(WC->httpauth_pass, c_httpauth_pass, sizeof WC->httpauth_pass);
1046                         } else {
1047                                 /* Should only display when password is wrong */
1048                                 authorization_required(&buf[4]);
1049                                 goto SKIP_ALL_THIS_CRAP;
1050                         }
1051                 }
1052         }
1053
1054         /* This needs to run early */
1055         if (!strcasecmp(action, "rss")) {
1056                 display_rss(bstr("room"));
1057                 goto SKIP_ALL_THIS_CRAP;
1058         }
1059
1060         /*
1061          * The GroupDAV stuff relies on HTTP authentication instead of
1062          * our session's authentication.
1063          */
1064         if (!strncasecmp(action, "groupdav", 8)) {
1065                 groupdav_main(req, ContentType, /* do GroupDAV methods */
1066                         ContentLength, content+body_start);
1067                 if (!WC->logged_in) {
1068                         WC->killthis = 1;       /* If not logged in, don't */
1069                 }                               /* keep the session active */
1070                 goto SKIP_ALL_THIS_CRAP;
1071         }
1072
1073
1074         /*
1075          * Automatically send requests with any method other than GET or
1076          * POST to the GroupDAV code as well.
1077          */
1078         if ((strcasecmp(request_method, "GET")) && (strcasecmp(request_method, "POST"))) {
1079                 groupdav_main(req, ContentType, /* do GroupDAV methods */
1080                         ContentLength, content+body_start);
1081                 if (!WC->logged_in) {
1082                         WC->killthis = 1;       /* If not logged in, don't */
1083                 }                               /* keep the session active */
1084                 goto SKIP_ALL_THIS_CRAP;
1085         }
1086
1087         /*
1088          * If we're not logged in, but we have username and password cookies
1089          * supplied by the browser, try using them to log in.
1090          */
1091         if ((!WC->logged_in)
1092            && (strlen(c_username) > 0)
1093            && (strlen(c_password) > 0)) {
1094                 serv_printf("USER %s", c_username);
1095                 serv_getln(buf, sizeof buf);
1096                 if (buf[0] == '3') {
1097                         serv_printf("PASS %s", c_password);
1098                         serv_getln(buf, sizeof buf);
1099                         if (buf[0] == '2') {
1100                                 become_logged_in(c_username, c_password, buf);
1101                         }
1102                 }
1103         }
1104         /*
1105          * If we don't have a current room, but a cookie specifying the
1106          * current room is supplied, make an effort to go there.
1107          */
1108         if ((strlen(WC->wc_roomname) == 0) && (strlen(c_roomname) > 0)) {
1109                 serv_printf("GOTO %s", c_roomname);
1110                 serv_getln(buf, sizeof buf);
1111                 if (buf[0] == '2') {
1112                         safestrncpy(WC->wc_roomname, c_roomname, sizeof WC->wc_roomname);
1113                 }
1114         }
1115
1116         /*
1117          * If there are instant messages waiting, retrieve them for display.
1118          */
1119         check_for_instant_messages();
1120
1121         if (!strcasecmp(action, "image")) {
1122                 output_image();
1123
1124         /*
1125          * All functions handled below this point ... make sure we log in
1126          * before doing anything else!
1127          */
1128         } else if ((!WC->logged_in) && (!strcasecmp(action, "login"))) {
1129                 do_login();
1130         } else if (!WC->logged_in) {
1131                 display_login(NULL);
1132         }
1133
1134         /*
1135          * Various commands...
1136          */
1137
1138         else if (!strcasecmp(action, "do_welcome")) {
1139                 do_welcome();
1140         } else if (!strcasecmp(action, "blank")) {
1141                 blank_page();
1142         } else if (!strcasecmp(action, "do_template")) {
1143                 url_do_template();
1144         } else if (!strcasecmp(action, "display_aide_menu")) {
1145                 display_aide_menu();
1146         } else if (!strcasecmp(action, "display_main_menu")) {
1147                 display_main_menu();
1148         } else if (!strcasecmp(action, "who")) {
1149                 who();
1150         } else if (!strcasecmp(action, "who_inner_html")) {
1151                 who_inner_html();
1152         } else if (!strcasecmp(action, "knrooms")) {
1153                 knrooms();
1154         } else if (!strcasecmp(action, "gotonext")) {
1155                 slrp_highest();
1156                 gotonext();
1157         } else if (!strcasecmp(action, "skip")) {
1158                 gotonext();
1159         } else if (!strcasecmp(action, "ungoto")) {
1160                 ungoto();
1161         } else if (!strcasecmp(action, "dotgoto")) {
1162                 if (WC->wc_view != VIEW_MAILBOX) {      /* dotgoto acts like dotskip when we're in a mailbox view */
1163                         slrp_highest();
1164                 }
1165                 smart_goto(bstr("room"));
1166         } else if (!strcasecmp(action, "dotskip")) {
1167                 smart_goto(bstr("room"));
1168         } else if (!strcasecmp(action, "termquit")) {
1169                 do_logout();
1170         } else if (!strcasecmp(action, "readnew")) {
1171                 readloop("readnew");
1172         } else if (!strcasecmp(action, "readold")) {
1173                 readloop("readold");
1174         } else if (!strcasecmp(action, "readfwd")) {
1175                 readloop("readfwd");
1176         } else if (!strcasecmp(action, "headers")) {
1177                 readloop("headers");
1178         } else if (!strcasecmp(action, "msg")) {
1179                 embed_message();
1180         } else if (!strcasecmp(action, "display_enter")) {
1181                 display_enter();
1182         } else if (!strcasecmp(action, "post")) {
1183                 post_message();
1184         } else if (!strcasecmp(action, "move_msg")) {
1185                 move_msg();
1186         } else if (!strcasecmp(action, "delete_msg")) {
1187                 delete_msg();
1188         } else if (!strcasecmp(action, "userlist")) {
1189                 userlist();
1190         } else if (!strcasecmp(action, "showuser")) {
1191                 showuser();
1192         } else if (!strcasecmp(action, "display_page")) {
1193                 display_page();
1194         } else if (!strcasecmp(action, "page_user")) {
1195                 page_user();
1196         } else if (!strcasecmp(action, "chat")) {
1197                 do_chat();
1198         } else if (!strcasecmp(action, "display_private")) {
1199                 display_private("", 0);
1200         } else if (!strcasecmp(action, "goto_private")) {
1201                 goto_private();
1202         } else if (!strcasecmp(action, "zapped_list")) {
1203                 zapped_list();
1204         } else if (!strcasecmp(action, "display_zap")) {
1205                 display_zap();
1206         } else if (!strcasecmp(action, "zap")) {
1207                 zap();
1208         } else if (!strcasecmp(action, "display_entroom")) {
1209                 display_entroom();
1210         } else if (!strcasecmp(action, "entroom")) {
1211                 entroom();
1212         } else if (!strcasecmp(action, "display_whok")) {
1213                 display_whok();
1214         } else if (!strcasecmp(action, "do_invt_kick")) {
1215                 do_invt_kick();
1216         } else if (!strcasecmp(action, "display_editroom")) {
1217                 display_editroom();
1218         } else if (!strcasecmp(action, "netedit")) {
1219                 netedit();
1220         } else if (!strcasecmp(action, "editroom")) {
1221                 editroom();
1222         } else if (!strcasecmp(action, "display_editinfo")) {
1223                 display_edit(_("Room info"), "EINF 0", "RINF", "/editinfo", 1);
1224         } else if (!strcasecmp(action, "editinfo")) {
1225                 save_edit(_("Room info"), "EINF 1", 1);
1226         } else if (!strcasecmp(action, "display_editbio")) {
1227                 sprintf(buf, "RBIO %s", WC->wc_username);
1228                 display_edit(_("Your bio"), "NOOP", buf, "editbio", 3);
1229         } else if (!strcasecmp(action, "editbio")) {
1230                 save_edit(_("Your bio"), "EBIO", 0);
1231         } else if (!strcasecmp(action, "confirm_move_msg")) {
1232                 confirm_move_msg();
1233         } else if (!strcasecmp(action, "delete_room")) {
1234                 delete_room();
1235         } else if (!strcasecmp(action, "validate")) {
1236                 validate();
1237         } else if (!strcasecmp(action, "display_editpic")) {
1238                 display_graphics_upload(_("your photo"),
1239                                         "UIMG 0|_userpic_",
1240                                         "/editpic");
1241         } else if (!strcasecmp(action, "editpic")) {
1242                 do_graphics_upload("UIMG 1|_userpic_");
1243         } else if (!strcasecmp(action, "display_editroompic")) {
1244                 display_graphics_upload(_("the icon for this room"),
1245                                         "UIMG 0|_roompic_",
1246                                         "/editroompic");
1247         } else if (!strcasecmp(action, "editroompic")) {
1248                 do_graphics_upload("UIMG 1|_roompic_");
1249         } else if (!strcasecmp(action, "delete_floor")) {
1250                 delete_floor();
1251         } else if (!strcasecmp(action, "rename_floor")) {
1252                 rename_floor();
1253         } else if (!strcasecmp(action, "create_floor")) {
1254                 create_floor();
1255         } else if (!strcasecmp(action, "display_editfloorpic")) {
1256                 sprintf(buf, "UIMG 0|_floorpic_|%s",
1257                         bstr("which_floor"));
1258                 display_graphics_upload(_("the icon for this floor"),
1259                                         buf,
1260                                         "/editfloorpic");
1261         } else if (!strcasecmp(action, "editfloorpic")) {
1262                 sprintf(buf, "UIMG 1|_floorpic_|%s",
1263                         bstr("which_floor"));
1264                 do_graphics_upload(buf);
1265         } else if (!strcasecmp(action, "display_reg")) {
1266                 display_reg(0);
1267         } else if (!strcasecmp(action, "display_changepw")) {
1268                 display_changepw();
1269         } else if (!strcasecmp(action, "changepw")) {
1270                 changepw();
1271         } else if (!strcasecmp(action, "display_edit_node")) {
1272                 display_edit_node();
1273         } else if (!strcasecmp(action, "edit_node")) {
1274                 edit_node();
1275         } else if (!strcasecmp(action, "display_netconf")) {
1276                 display_netconf();
1277         } else if (!strcasecmp(action, "display_confirm_delete_node")) {
1278                 display_confirm_delete_node();
1279         } else if (!strcasecmp(action, "delete_node")) {
1280                 delete_node();
1281         } else if (!strcasecmp(action, "display_add_node")) {
1282                 display_add_node();
1283         } else if (!strcasecmp(action, "add_node")) {
1284                 add_node();
1285         } else if (!strcasecmp(action, "terminate_session")) {
1286                 slrp_highest();
1287                 terminate_session();
1288         } else if (!strcasecmp(action, "edit_me")) {
1289                 edit_me();
1290         } else if (!strcasecmp(action, "display_siteconfig")) {
1291                 display_siteconfig();
1292         } else if (!strcasecmp(action, "chat_recv")) {
1293                 chat_recv();
1294         } else if (!strcasecmp(action, "chat_send")) {
1295                 chat_send();
1296         } else if (!strcasecmp(action, "siteconfig")) {
1297                 siteconfig();
1298         } else if (!strcasecmp(action, "display_generic")) {
1299                 display_generic();
1300         } else if (!strcasecmp(action, "do_generic")) {
1301                 do_generic();
1302         } else if (!strcasecmp(action, "display_menubar")) {
1303                 display_menubar(1);
1304         } else if (!strcasecmp(action, "output_mimepart")) {
1305                 output_mimepart();
1306         } else if (!strcasecmp(action, "edit_vcard")) {
1307                 edit_vcard();
1308         } else if (!strcasecmp(action, "submit_vcard")) {
1309                 submit_vcard();
1310         } else if (!strcasecmp(action, "select_user_to_edit")) {
1311                 select_user_to_edit(NULL, NULL);
1312         } else if (!strcasecmp(action, "display_edituser")) {
1313                 display_edituser(NULL, 0);
1314         } else if (!strcasecmp(action, "edituser")) {
1315                 edituser();
1316         } else if (!strcasecmp(action, "create_user")) {
1317                 create_user();
1318         } else if (!strcasecmp(action, "changeview")) {
1319                 change_view();
1320         } else if (!strcasecmp(action, "do_stuff_to_msgs")) {
1321                 do_stuff_to_msgs();
1322         } else if (!strcasecmp(action, "change_start_page")) {
1323                 change_start_page();
1324         } else if (!strcasecmp(action, "display_floorconfig")) {
1325                 display_floorconfig(NULL);
1326         } else if (!strcasecmp(action, "toggle_self_service")) {
1327                 toggle_self_service();
1328 #ifdef WEBCIT_WITH_CALENDAR_SERVICE
1329         } else if (!strcasecmp(action, "display_edit_task")) {
1330                 display_edit_task();
1331         } else if (!strcasecmp(action, "save_task")) {
1332                 save_task();
1333         } else if (!strcasecmp(action, "display_edit_event")) {
1334                 display_edit_event();
1335         } else if (!strcasecmp(action, "save_event")) {
1336                 save_event();
1337         } else if (!strcasecmp(action, "respond_to_request")) {
1338                 respond_to_request();
1339         } else if (!strcasecmp(action, "handle_rsvp")) {
1340                 handle_rsvp();
1341 #endif
1342         } else if (!strcasecmp(action, "summary")) {
1343                 summary();
1344         } else if (!strcasecmp(action, "iconbar")) {
1345                 do_iconbar();
1346         } else if (!strcasecmp(action, "display_customize_iconbar")) {
1347                 display_customize_iconbar();
1348         } else if (!strcasecmp(action, "commit_iconbar")) {
1349                 commit_iconbar();
1350         } else if (!strcasecmp(action, "set_room_policy")) {
1351                 set_room_policy();
1352         } else if (!strcasecmp(action, "display_inetconf")) {
1353                 display_inetconf();
1354         } else if (!strcasecmp(action, "save_inetconf")) {
1355                 save_inetconf();
1356         } else if (!strcasecmp(action, "setup_wizard")) {
1357                 do_setup_wizard();
1358         } else if (!strcasecmp(action, "display_preferences")) {
1359                 display_preferences();
1360         } else if (!strcasecmp(action, "set_preferences")) {
1361                 set_preferences();
1362         } else if (!strcasecmp(action, "recp_autocomplete")) {
1363                 recp_autocomplete(bstr("recp"));
1364         } else if (!strcasecmp(action, "cc_autocomplete")) {
1365                 recp_autocomplete(bstr("cc"));
1366         } else if (!strcasecmp(action, "bcc_autocomplete")) {
1367                 recp_autocomplete(bstr("bcc"));
1368         } else if (!strcasecmp(action, "diagnostics")) {
1369                 output_headers(1, 1, 1, 0, 0, 0, 0);
1370                 wprintf("Session: %d<hr />\n", WC->wc_session);
1371                 wprintf("Command: <br /><PRE>\n");
1372                 escputs(cmd);
1373                 wprintf("</PRE><hr />\n");
1374                 wprintf("Variables: <br /><PRE>\n");
1375                 dump_vars();
1376                 wprintf("</PRE><hr />\n");
1377                 wDumpContent(1);
1378         }
1379
1380         /* When all else fais, display the main menu. */
1381         else {
1382                 display_main_menu();
1383         }
1384
1385 SKIP_ALL_THIS_CRAP:
1386         fflush(stdout);
1387         if (content != NULL) {
1388                 free(content);
1389                 content = NULL;
1390         }
1391         free_urls();
1392         if (WC->upload_length > 0) {
1393                 free(WC->upload);
1394                 WC->upload_length = 0;
1395         }
1396
1397 }