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 suppress_check,     /* 1 = suppress check for instant messages          */
 340                         int cache               /* 1 = allow browser to cache this page             */
 341 ) {
 342         char cookie[SIZ];
 343         char httpnow[SIZ];
 344
 345         wprintf("HTTP/1.0 200 OK\n");
 346         httpdate(httpnow, time(NULL));
 347
 348         if (do_httpheaders) {
 349                 wprintf("Content-type: text/html; charset=utf-8\r\n"
 350                         "Server: %s / %s\n"
 351                         "Connection: close\r\n",
 352                         SERVER, serv_info.serv_software
 353                 );
 354         }
 355
 356         if (cache) {
 357                 wprintf("Pragma: public\r\n"
 358                         "Cache-Control: max-age=3600, must-revalidate\r\n"
 359                         "Last-modified: %s\r\n",
 360                         httpnow
 361                 );
 362         }
 363         else {
 364                 wprintf("Pragma: no-cache\r\n"
 365                         "Cache-Control: no-store\r\n"
 366                 );
 367         }
 368
 369         stuff_to_cookie(cookie, WC->wc_session, WC->wc_username,
 370                         WC->wc_password, WC->wc_roomname);
 371
 372         if (unset_cookies) {
 373                 wprintf("Set-cookie: webcit=%s; path=/\r\n", unset);
 374         } else {
 375                 wprintf("Set-cookie: webcit=%s; path=/\r\n", cookie);
 376                 if (server_cookie != NULL) {
 377                         wprintf("%s\n", server_cookie);
 378                 }
 379         }
 380
 381         if (do_htmlhead) {
 382                 /* wprintf("\n"); */
 383                 begin_burst();
 384                 do_template("head");
 385         }
 386
 387         /* ICONBAR */
 388         if (do_htmlhead) {
 389
 390                 if (WC->HaveInstantMessages) {
 391                         wprintf("<div id=\"page_popup\">\n");
 392                         page_popup();
 393                         wprintf("</div>\n");
 394                 }
 395                 if (strlen(WC->ImportantMessage) > 0) {
 396                         wprintf("<div id=\"important_message\">\n");
 397                         wprintf("<SPAN CLASS=\"imsg\">"
 398                                 "%s</SPAN><br />\n", WC->ImportantMessage);
 399                         wprintf("</div>\n");
 400                         wprintf("<script type=\"text/javascript\">\n"
 401                                 "        setTimeout('hide_imsg_popup()', 3000); \n"
 402                                 "</script>\n");
 403                         safestrncpy(WC->ImportantMessage, "", sizeof WC->ImportantMessage);
 404                 }
 405                 if ( (WC->logged_in) && (!unset_cookies) ) {
 406                         wprintf("<div id=\"iconbar\">");
 407                         do_iconbar();
 408                         wprintf("</div>\n");
 409                 }
 410                 if (do_room_banner == 1) {
 411                         wprintf("<div id=\"banner\">\n");
 412                         embed_room_banner(NULL, navbar_default);
 413                         wprintf("</div>\n");
 414                 }
 415         }
 416
 417         if (do_room_banner == 1) {
 418                 wprintf("<div id=\"content\">\n");
 419         }
 420 }
 421
 422
 423 /*
 424  * Generic function to do an HTTP redirect.  Easy and fun.
 425  */
 426 void http_redirect(char *whichpage) {
 427         wprintf("HTTP/1.0 302 Moved Temporarily\n");
 428         wprintf("Location: %s\r\n", whichpage);
 429         wprintf("URI: %s\r\n", whichpage);
 430         wprintf("Content-type: text/html; charset=utf-8\r\n\r\n");
 431         wprintf("<html><body>");
 432         wprintf("Go <A HREF=\"%s\">here</A>.", whichpage);
 433         wprintf("</body></html>\n");
 434 }
 435
 436
 437
 438 void check_for_instant_messages()
 439 {
 440         char buf[SIZ];
 441
 442         serv_puts("NOOP");
 443         serv_getln(buf, sizeof buf);
 444         if (buf[3] == '*') WC->HaveInstantMessages = 1;
 445 }
 446
 447
 448
 449
 450 /*
 451  * Output a piece of content to the web browser
 452  */
 453 void http_transmit_thing(char *thing, size_t length, char *content_type,
 454                          int is_static) {
 455
 456         output_headers(0, 0, 0, 0, 0, is_static);
 457
 458         wprintf("Content-type: %s\r\n"
 459                 "Server: %s\r\n"
 460                 "Connection: close\r\n",
 461                 content_type,
 462                 SERVER);
 463
 464 #ifdef HAVE_ZLIB
 465         /* If we can send the data out compressed, please do so. */
 466         if (WC->gzip_ok) {
 467                 char *compressed_data = NULL;
 468                 uLongf compressed_len;
 469
 470                 compressed_len = (uLongf) ((length * 101) / 100) + 100;
 471                 compressed_data = malloc(compressed_len);
 472
 473                 if (compress_gzip((Bytef *) compressed_data,
 474                                   &compressed_len,
 475                                   (Bytef *) thing,
 476                                   (uLongf) length, Z_BEST_SPEED) == Z_OK) {
 477                         wprintf("Content-encoding: gzip\r\n"
 478                                 "Content-length: %ld\r\n"
 479                                 "\r\n",
 480                                 (long) compressed_len
 481                         );
 482                         client_write(compressed_data, (size_t)compressed_len);
 483                         free(compressed_data);
 484                         return;
 485                 }
 486         }
 487 #endif
 488
 489         /* No compression ... just send it out as-is */
 490         wprintf("Content-length: %ld\r\n"
 491                 "\r\n",
 492                 (long) length
 493         );
 494         client_write(thing, (size_t)length);
 495 }
 496
 497
 498
 499
 500 void output_static(char *what)
 501 {
 502         char buf[256];
 503         FILE *fp;
 504         struct stat statbuf;
 505         off_t bytes;
 506         char *bigbuffer;
 507         char content_type[128];
 508
 509         sprintf(buf, "static/%s", what);
 510         fp = fopen(buf, "rb");
 511         if (fp == NULL) {
 512                 wprintf("HTTP/1.0 404 %s\n", strerror(errno));
 513                 wprintf("Content-Type: text/plain\r\n");
 514                 wprintf("\r\n");
 515                 wprintf("Cannot open %s: %s\n", what, strerror(errno));
 516         } else {
 517                 if (!strncasecmp(&what[strlen(what) - 4], ".gif", 4))
 518                         safestrncpy(content_type, "image/gif", sizeof content_type);
 519                 else if (!strncasecmp(&what[strlen(what) - 4], ".txt", 4))
 520                         safestrncpy(content_type, "text/plain", sizeof content_type);
 521                 else if (!strncasecmp(&what[strlen(what) - 4], ".css", 4))
 522                         safestrncpy(content_type, "text/css", sizeof content_type);
 523                 else if (!strncasecmp(&what[strlen(what) - 4], ".jpg", 4))
 524                         safestrncpy(content_type, "image/jpeg", sizeof content_type);
 525                 else if (!strncasecmp(&what[strlen(what) - 4], ".png", 4))
 526                         safestrncpy(content_type, "image/png", sizeof content_type);
 527                 else if (!strncasecmp(&what[strlen(what) - 4], ".ico", 4))
 528                         safestrncpy(content_type, "image/x-icon", sizeof content_type);
 529                 else if (!strncasecmp(&what[strlen(what) - 5], ".html", 5))
 530                         safestrncpy(content_type, "text/html", sizeof content_type);
 531                 else if (!strncasecmp(&what[strlen(what) - 4], ".htm", 4))
 532                         safestrncpy(content_type, "text/html", sizeof content_type);
 533                 else if (!strncasecmp(&what[strlen(what) - 4], ".wml", 4))
 534                         safestrncpy(content_type, "text/vnd.wap.wml", sizeof content_type);
 535                 else if (!strncasecmp(&what[strlen(what) - 5], ".wmls", 5))
 536                         safestrncpy(content_type, "text/vnd.wap.wmlscript", sizeof content_type);
 537                 else if (!strncasecmp(&what[strlen(what) - 5], ".wmlc", 5))
 538                         safestrncpy(content_type, "application/vnd.wap.wmlc", sizeof content_type);
 539                 else if (!strncasecmp(&what[strlen(what) - 6], ".wmlsc", 6))
 540                         safestrncpy(content_type, "application/vnd.wap.wmlscriptc", sizeof content_type);
 541                 else if (!strncasecmp(&what[strlen(what) - 5], ".wbmp", 5))
 542                         safestrncpy(content_type, "image/vnd.wap.wbmp", sizeof content_type);
 543                 else if (!strncasecmp(&what[strlen(what) - 3], ".js", 3))
 544                         safestrncpy(content_type, "text/javascript", sizeof content_type);
 545                 else
 546                         safestrncpy(content_type, "application/octet-stream", sizeof content_type);
 547
 548                 fstat(fileno(fp), &statbuf);
 549                 bytes = statbuf.st_size;
 550                 bigbuffer = malloc(bytes + 2);
 551                 fread(bigbuffer, bytes, 1, fp);
 552                 fclose(fp);
 553
 554                 http_transmit_thing(bigbuffer, (size_t)bytes, content_type, 1);
 555                 free(bigbuffer);
 556         }
 557         if (!strcasecmp(bstr("force_close_session"), "yes")) {
 558                 end_webcit_session();
 559         }
 560 }
 561
 562
 563 /*
 564  * When the browser requests an image file from the Citadel server,
 565  * this function is called to transmit it.
 566  */
 567 void output_image()
 568 {
 569         char buf[SIZ];
 570         char *xferbuf = NULL;
 571         off_t bytes;
 572
 573         serv_printf("OIMG %s|%s", bstr("name"), bstr("parm"));
 574         serv_getln(buf, sizeof buf);
 575         if (buf[0] == '2') {
 576                 bytes = extract_long(&buf[4], 0);
 577                 xferbuf = malloc(bytes + 2);
 578
 579                 /* Read it from the server */
 580                 read_server_binary(xferbuf, bytes);
 581                 serv_puts("CLOS");
 582                 serv_getln(buf, sizeof buf);
 583
 584                 /* Write it to the browser */
 585                 http_transmit_thing(xferbuf, (size_t)bytes, "image/gif", 0);
 586                 free(xferbuf);
 587
 588         } else {
 589                 /* Instead of an ugly 404, send a 1x1 transparent GIF
 590                  * when there's no such image on the server.
 591                  */
 592                 output_static("blank.gif");
 593         }
 594
 595
 596
 597 }
 598
 599 /*
 600  * Generic function to output an arbitrary MIME part from an arbitrary
 601  * message number on the server.
 602  */
 603 void output_mimepart()
 604 {
 605         char buf[SIZ];
 606         off_t bytes;
 607         char content_type[SIZ];
 608         char *content = NULL;
 609
 610         serv_printf("OPNA %s|%s", bstr("msgnum"), bstr("partnum"));
 611         serv_getln(buf, sizeof buf);
 612         if (buf[0] == '2') {
 613                 bytes = extract_long(&buf[4], 0);
 614                 content = malloc(bytes + 2);
 615                 extract_token(content_type, &buf[4], 3, '|', sizeof content_type);
 616                 output_headers(0, 0, 0, 0, 0, 0);
 617                 read_server_binary(content, bytes);
 618                 serv_puts("CLOS");
 619                 serv_getln(buf, sizeof buf);
 620                 http_transmit_thing(content, bytes, content_type, 0);
 621                 free(content);
 622         } else {
 623                 wprintf("HTTP/1.0 404 %s\n", &buf[4]);
 624                 output_headers(0, 0, 0, 0, 0, 0);
 625                 wprintf("Content-Type: text/plain\r\n");
 626                 wprintf("\r\n");
 627                 wprintf(_("An error occurred while retrieving this part: %s\n"), &buf[4]);
 628         }
 629
 630 }
 631
 632
 633 /*
 634  * Read any MIME part of a message, from the server, into memory.
 635  */
 636 char *load_mimepart(long msgnum, char *partnum)
 637 {
 638         char buf[SIZ];
 639         off_t bytes;
 640         char content_type[SIZ];
 641         char *content;
 642
 643         serv_printf("OPNA %ld|%s", msgnum, partnum);
 644         serv_getln(buf, sizeof buf);
 645         if (buf[0] == '2') {
 646                 bytes = extract_long(&buf[4], 0);
 647                 extract_token(content_type, &buf[4], 3, '|', sizeof content_type);
 648
 649                 content = malloc(bytes + 2);
 650                 read_server_binary(content, bytes);
 651
 652                 serv_puts("CLOS");
 653                 serv_getln(buf, sizeof buf);
 654                 content[bytes] = 0;     /* null terminate for good measure */
 655                 return(content);
 656         }
 657         else {
 658                 return(NULL);
 659         }
 660
 661 }
 662
 663
 664 /*
 665  * Convenience functions to display a page containing only a string
 666  */
 667 void convenience_page(char *titlebarcolor, char *titlebarmsg, char *messagetext)
 668 {
 669         wprintf("HTTP/1.0 200 OK\n");
 670         output_headers(1, 1, 2, 0, 0, 0);
 671         wprintf("<div id=\"banner\">\n");
 672         wprintf("<TABLE WIDTH=100%% BORDER=0 BGCOLOR=\"#%s\"><TR><TD>", titlebarcolor);
 673         wprintf("<SPAN CLASS=\"titlebar\">%s</SPAN>\n", titlebarmsg);
 674         wprintf("</TD></TR></TABLE>\n");
 675         wprintf("</div>\n<div id=\"content\">\n");
 676         escputs(messagetext);
 677
 678         wprintf("<hr />\n");
 679         wDumpContent(1);
 680 }
 681
 682
 683 /*
 684  * Display a blank page.
 685  */
 686 void blank_page(void) {
 687         output_headers(1, 1, 0, 0, 0, 0);
 688         wDumpContent(2);
 689 }
 690
 691
 692 /*
 693  * A template has been requested
 694  */
 695 void url_do_template(void) {
 696         do_template(bstr("template"));
 697 }
 698
 699
 700
 701 /*
 702  * Offer to make any page the user's "start page."
 703  */
 704 void offer_start_page(void) {
 705         wprintf("<A HREF=\"/change_start_page?startpage=");
 706         urlescputs(WC->this_page);
 707         wprintf("\"><FONT SIZE=-2 COLOR=\"#AAAAAA\">");
 708         wprintf(_("Make this my start page"));
 709         wprintf("</FONT></A>");
 710         wprintf("<br/><a href=\"/rss?room=");
 711         urlescputs(WC->wc_roomname);
 712         wprintf("\" title=\"RSS 2.0 feed for ");
 713         escputs(WC->wc_roomname);
 714         wprintf("\"><img alt=\"RSS\" border=\"0\" src=\"/static/xml_button.gif\"/></a>\n");
 715 }
 716
 717
 718 /*
 719  * Change the user's start page
 720  */
 721 void change_start_page(void) {
 722
 723         if (bstr("startpage") == NULL) {
 724                 safestrncpy(WC->ImportantMessage,
 725                         _("You no longer have a start page selected."),
 726                         sizeof WC->ImportantMessage);
 727                 display_main_menu();
 728                 return;
 729         }
 730
 731         set_preference("startpage", bstr("startpage"), 1);
 732
 733         output_headers(1, 1, 0, 0, 0, 0);
 734         do_template("newstartpage");
 735         wDumpContent(1);
 736 }
 737
 738
 739
 740
 741 void display_success(char *successmessage)
 742 {
 743         convenience_page("007700", "OK", successmessage);
 744 }
 745
 746
 747 /* Authorization required page */
 748 /* This is probably temporary and should be revisited */
 749 void authorization_required(const char *message)
 750 {
 751         wprintf("HTTP/1.0 401 Authorization Required\r\n");
 752         wprintf("WWW-Authenticate: Basic realm=\"\"\r\n", serv_info.serv_humannode);
 753         wprintf("Content-Type: text/html\r\n\r\n");
 754         wprintf("<h1>");
 755         wprintf(_("Authorization Required"));
 756         wprintf("</h1>\r\n");
 757         wprintf(_("The resource you requested requires a valid username and password. "
 758                 "You could not be logged in: %s\n"), message);
 759         wDumpContent(0);
 760 }
 761
 762
 763 void upload_handler(char *name, char *filename, char *partnum, char *disp,
 764                         void *content, char *cbtype, char *cbcharset,
 765                         size_t length, char *encoding, void *userdata)
 766 {
 767         struct urlcontent *u;
 768
 769         lprintf(9, "upload_handler() name=%s, type=%s, len=%d\n",
 770                 name, cbtype, length);
 771
 772         /* Form fields */
 773         if ( (length > 0) && (strlen(cbtype) == 0) ) {
 774                 u = (struct urlcontent *) malloc(sizeof(struct urlcontent));
 775                 u->next = WC->urlstrings;
 776                 WC->urlstrings = u;
 777                 safestrncpy(u->url_key, name, sizeof(u->url_key));
 778                 u->url_data = malloc(length + 1);
 779                 memcpy(u->url_data, content, length);
 780                 u->url_data[length] = 0;
 781         }
 782
 783         /* Uploaded files */
 784         if ( (length > 0) && (strlen(cbtype) > 0) ) {
 785                 WC->upload = malloc(length);
 786                 if (WC->upload != NULL) {
 787                         WC->upload_length = length;
 788                         safestrncpy(WC->upload_filename, filename,
 789                                         sizeof(WC->upload_filename));
 790                         safestrncpy(WC->upload_content_type, cbtype,
 791                                         sizeof(WC->upload_content_type));
 792                         memcpy(WC->upload, content, length);
 793                 }
 794                 else {
 795                         lprintf(3, "malloc() failed: %s\n", strerror(errno));
 796                 }
 797         }
 798
 799 }
 800
 801 /*
 802  * Convenience functions to wrap around asynchronous ajax responses
 803  */
 804 void begin_ajax_response(void) {
 805         output_headers(0, 0, 0, 0, 0, 0);
 806
 807         wprintf("Content-type: text/html; charset=UTF-8\r\n"
 808                 "Server: %s\r\n"
 809                 "Connection: close\r\n"
 810                 "Pragma: no-cache\r\n"
 811                 "Cache-Control: no-cache\r\n",
 812                 SERVER);
 813         begin_burst();
 814 }
 815
 816 void end_ajax_response(void) {
 817         wprintf("\r\n");
 818         wDumpContent(0);
 819 }
 820
 821
 822
 823 /*
 824  * Entry point for WebCit transaction
 825  */
 826 void session_loop(struct httprequest *req)
 827 {
 828         char cmd[1024];
 829         char action[128];
 830         char arg1[128];
 831         char arg2[128];
 832         char arg3[128];
 833         char buf[SIZ];
 834         int a, b;
 835         int ContentLength = 0;
 836         int BytesRead = 0;
 837         char ContentType[512];
 838         char *content = NULL;
 839         char *content_end = NULL;
 840         struct httprequest *hptr;
 841         char browser_host[SIZ];
 842         char user_agent[SIZ];
 843         int body_start = 0;
 844
 845         /* We stuff these with the values coming from the client cookies,
 846          * so we can use them to reconnect a timed out session if we have to.
 847          */
 848         char c_username[SIZ];
 849         char c_password[SIZ];
 850         char c_roomname[SIZ];
 851         char c_httpauth_string[SIZ];
 852         char c_httpauth_user[SIZ];
 853         char c_httpauth_pass[SIZ];
 854         char cookie[SIZ];
 855
 856         safestrncpy(c_username, "", sizeof c_username);
 857         safestrncpy(c_password, "", sizeof c_password);
 858         safestrncpy(c_roomname, "", sizeof c_roomname);
 859         safestrncpy(c_httpauth_string, "", sizeof c_httpauth_string);
 860         safestrncpy(c_httpauth_user, DEFAULT_HTTPAUTH_USER, sizeof c_httpauth_user);
 861         safestrncpy(c_httpauth_pass, DEFAULT_HTTPAUTH_PASS, sizeof c_httpauth_pass);
 862
 863         WC->upload_length = 0;
 864         WC->upload = NULL;
 865         WC->vars = NULL;
 866
 867         WC->is_wap = 0;
 868
 869         hptr = req;
 870         if (hptr == NULL) return;
 871
 872         safestrncpy(cmd, hptr->line, sizeof cmd);
 873         hptr = hptr->next;
 874         extract_token(request_method, cmd, 0, ' ', sizeof request_method);
 875
 876         /* Figure out the action */
 877         extract_token(action, cmd, 1, '/', sizeof action);
 878         if (strstr(action, "?")) *strstr(action, "?") = 0;
 879         if (strstr(action, "&")) *strstr(action, "&") = 0;
 880         if (strstr(action, " ")) *strstr(action, " ") = 0;
 881
 882         extract_token(arg1, cmd, 2, '/', sizeof arg1);
 883         if (strstr(arg1, "?")) *strstr(arg1, "?") = 0;
 884         if (strstr(arg1, "&")) *strstr(arg1, "&") = 0;
 885         if (strstr(arg1, " ")) *strstr(arg1, " ") = 0;
 886
 887         extract_token(arg2, cmd, 3, '/', sizeof arg2);
 888         if (strstr(arg2, "?")) *strstr(arg2, "?") = 0;
 889         if (strstr(arg2, "&")) *strstr(arg2, "&") = 0;
 890         if (strstr(arg2, " ")) *strstr(arg2, " ") = 0;
 891
 892         extract_token(arg3, cmd, 4, '/', sizeof arg3);
 893         if (strstr(arg3, "?")) *strstr(arg3, "?") = 0;
 894         if (strstr(arg3, "&")) *strstr(arg3, "&") = 0;
 895         if (strstr(arg3, " ")) *strstr(arg3, " ") = 0;
 896
 897         while (hptr != NULL) {
 898                 safestrncpy(buf, hptr->line, sizeof buf);
 899                 hptr = hptr->next;
 900
 901                 if (!strncasecmp(buf, "Cookie: webcit=", 15)) {
 902                         safestrncpy(cookie, &buf[15], sizeof cookie);
 903                         cookie_to_stuff(cookie, NULL,
 904                                         c_username, sizeof c_username,
 905                                         c_password, sizeof c_password,
 906                                         c_roomname, sizeof c_roomname);
 907                 }
 908                 else if (!strncasecmp(buf, "Authorization: Basic ", 21)) {
 909                         CtdlDecodeBase64(c_httpauth_string, &buf[21], strlen(&buf[21]));
 910                         extract_token(c_httpauth_user, c_httpauth_string, 0, ':', sizeof c_httpauth_user);
 911                         extract_token(c_httpauth_pass, c_httpauth_string, 1, ':', sizeof c_httpauth_pass);
 912                 }
 913                 else if (!strncasecmp(buf, "Content-length: ", 16)) {
 914                         ContentLength = atoi(&buf[16]);
 915                 }
 916                 else if (!strncasecmp(buf, "Content-type: ", 14)) {
 917                         safestrncpy(ContentType, &buf[14], sizeof ContentType);
 918                 }
 919                 else if (!strncasecmp(buf, "User-agent: ", 12)) {
 920                         safestrncpy(user_agent, &buf[12], sizeof user_agent);
 921                 }
 922                 else if (!strncasecmp(buf, "Host: ", 6)) {
 923                         safestrncpy(WC->http_host, &buf[6], sizeof WC->http_host);
 924                 }
 925                 /* Only WAP gateways explicitly name this content-type */
 926                 else if (strstr(buf, "text/vnd.wap.wml")) {
 927                         WC->is_wap = 1;
 928                 }
 929         }
 930
 931         if (ContentLength > 0) {
 932                 content = malloc(ContentLength + SIZ);
 933                 memset(content, 0, ContentLength + SIZ);
 934                 sprintf(content, "Content-type: %s\n"
 935                                 "Content-length: %d\n\n",
 936                                 ContentType, ContentLength);
 937                 body_start = strlen(content);
 938
 939                 /* Read the entire input data at once. */
 940                 client_read(WC->http_sock, &content[BytesRead+body_start],
 941                         ContentLength);
 942
 943                 if (!strncasecmp(ContentType,
 944                               "application/x-www-form-urlencoded", 33)) {
 945                         addurls(&content[body_start]);
 946                 } else if (!strncasecmp(ContentType, "multipart", 9)) {
 947                         content_end = content + ContentLength + body_start;
 948                         mime_parser(content, content_end, *upload_handler,
 949                                         NULL, NULL, NULL, 0);
 950                 }
 951         } else {
 952                 content = NULL;
 953         }
 954
 955         /* make a note of where we are in case the user wants to save it */
 956         safestrncpy(WC->this_page, cmd, sizeof(WC->this_page));
 957         remove_token(WC->this_page, 2, ' ');
 958         remove_token(WC->this_page, 0, ' ');
 959
 960         /* If there are variables in the URL, we must grab them now */
 961         for (a = 0; a < strlen(cmd); ++a) {
 962                 if ((cmd[a] == '?') || (cmd[a] == '&')) {
 963                         for (b = a; b < strlen(cmd); ++b)
 964                                 if (isspace(cmd[b]))
 965                                         cmd[b] = 0;
 966                         addurls(&cmd[a + 1]);
 967                         cmd[a] = 0;
 968                 }
 969         }
 970
 971
 972         /* Static content can be sent without connecting to Citadel. */
 973         if (!strcasecmp(action, "static")) {
 974                 safestrncpy(buf, arg1, sizeof buf);
 975                 for (a = 0; a < strlen(buf); ++a)
 976                         if (isspace(buf[a]))
 977                                 buf[a] = 0;
 978                 output_static(buf);
 979                 goto SKIP_ALL_THIS_CRAP;        /* Don't try to connect */
 980         }
 981
 982         /*
 983          * If we're not connected to a Citadel server, try to hook up the
 984          * connection now.
 985          */
 986         if (!WC->connected) {
 987                 if (!strcasecmp(ctdlhost, "uds")) {
 988                         /* unix domain socket */
 989                         sprintf(buf, "%s/citadel.socket", ctdlport);
 990                         WC->serv_sock = uds_connectsock(buf);
 991                 }
 992                 else {
 993                         /* tcp socket */
 994                         WC->serv_sock = tcp_connectsock(ctdlhost, ctdlport);
 995                 }
 996
 997                 if (WC->serv_sock < 0) {
 998                         do_logout();
 999                         goto SKIP_ALL_THIS_CRAP;
1000                 }
1001                 else {
1002                         WC->connected = 1;
1003                         serv_getln(buf, sizeof buf);    /* get the server welcome message */
1004                         locate_host(browser_host, WC->http_sock);
1005                         get_serv_info(browser_host, user_agent);
1006                         if (serv_info.serv_rev_level < MINIMUM_CIT_VERSION) {
1007                                 wprintf(_("You are connected to a Citadel "
1008                                         "server running Citadel %d.%02d. \n"
1009                                         "In order to run this version of WebCit "
1010                                         "you must also have Citadel %d.%02d or"
1011                                         " newer.\n\n\n"),
1012                                                 serv_info.serv_rev_level / 100,
1013                                                 serv_info.serv_rev_level % 100,
1014                                                 MINIMUM_CIT_VERSION / 100,
1015                                                 MINIMUM_CIT_VERSION % 100
1016                                         );
1017                                 end_webcit_session();
1018                                 goto SKIP_ALL_THIS_CRAP;
1019                         }
1020                 }
1021         }
1022
1023         /*
1024          * Functions which can be performed without logging in
1025          */
1026         if (!strcasecmp(action, "listsub")) {
1027                 do_listsub();
1028                 goto SKIP_ALL_THIS_CRAP;
1029         }
1030 #ifdef WEBCIT_WITH_CALENDAR_SERVICE
1031         if (!strcasecmp(action, "freebusy")) {
1032                 do_freebusy(cmd);
1033                 goto SKIP_ALL_THIS_CRAP;
1034         }
1035 #endif
1036
1037         /*
1038          * If we're not logged in, but we have HTTP Authentication data,
1039          * try logging in to Citadel using that.
1040          */
1041         if ((!WC->logged_in)
1042            && (strlen(c_httpauth_user) > 0)
1043            && (strlen(c_httpauth_pass) > 0)) {
1044                 serv_printf("USER %s", c_httpauth_user);
1045                 serv_getln(buf, sizeof buf);
1046                 if (buf[0] == '3') {
1047                         serv_printf("PASS %s", c_httpauth_pass);
1048                         serv_getln(buf, sizeof buf);
1049                         if (buf[0] == '2') {
1050                                 become_logged_in(c_httpauth_user,
1051                                                 c_httpauth_pass, buf);
1052                                 safestrncpy(WC->httpauth_user, c_httpauth_user, sizeof WC->httpauth_user);
1053                                 safestrncpy(WC->httpauth_pass, c_httpauth_pass, sizeof WC->httpauth_pass);
1054                         } else {
1055                                 /* Should only display when password is wrong */
1056                                 authorization_required(&buf[4]);
1057                                 goto SKIP_ALL_THIS_CRAP;
1058                         }
1059                 }
1060         }
1061
1062         /* This needs to run early */
1063         if (!strcasecmp(action, "rss")) {
1064                 display_rss(bstr("room"));
1065                 goto SKIP_ALL_THIS_CRAP;
1066         }
1067
1068         /*
1069          * The GroupDAV stuff relies on HTTP authentication instead of
1070          * our session's authentication.
1071          */
1072         if (!strncasecmp(action, "groupdav", 8)) {
1073                 groupdav_main(req, ContentType, /* do GroupDAV methods */
1074                         ContentLength, content+body_start);
1075                 if (!WC->logged_in) {
1076                         WC->killthis = 1;       /* If not logged in, don't */
1077                 }                               /* keep the session active */
1078                 goto SKIP_ALL_THIS_CRAP;
1079         }
1080
1081
1082         /*
1083          * Automatically send requests with any method other than GET or
1084          * POST to the GroupDAV code as well.
1085          */
1086         if ((strcasecmp(request_method, "GET")) && (strcasecmp(request_method, "POST"))) {
1087                 groupdav_main(req, ContentType, /* do GroupDAV methods */
1088                         ContentLength, content+body_start);
1089                 if (!WC->logged_in) {
1090                         WC->killthis = 1;       /* If not logged in, don't */
1091                 }                               /* keep the session active */
1092                 goto SKIP_ALL_THIS_CRAP;
1093         }
1094
1095         /*
1096          * If we're not logged in, but we have username and password cookies
1097          * supplied by the browser, try using them to log in.
1098          */
1099         if ((!WC->logged_in)
1100            && (strlen(c_username) > 0)
1101            && (strlen(c_password) > 0)) {
1102                 serv_printf("USER %s", c_username);
1103                 serv_getln(buf, sizeof buf);
1104                 if (buf[0] == '3') {
1105                         serv_printf("PASS %s", c_password);
1106                         serv_getln(buf, sizeof buf);
1107                         if (buf[0] == '2') {
1108                                 become_logged_in(c_username, c_password, buf);
1109                         }
1110                 }
1111         }
1112         /*
1113          * If we don't have a current room, but a cookie specifying the
1114          * current room is supplied, make an effort to go there.
1115          */
1116         if ((strlen(WC->wc_roomname) == 0) && (strlen(c_roomname) > 0)) {
1117                 serv_printf("GOTO %s", c_roomname);
1118                 serv_getln(buf, sizeof buf);
1119                 if (buf[0] == '2') {
1120                         safestrncpy(WC->wc_roomname, c_roomname, sizeof WC->wc_roomname);
1121                 }
1122         }
1123
1124         /*
1125          * If there are instant messages waiting, retrieve them for display.
1126          */
1127         check_for_instant_messages();
1128
1129         if (!strcasecmp(action, "image")) {
1130                 output_image();
1131
1132         /*
1133          * All functions handled below this point ... make sure we log in
1134          * before doing anything else!
1135          */
1136         } else if ((!WC->logged_in) && (!strcasecmp(action, "login"))) {
1137                 do_login();
1138         } else if (!WC->logged_in) {
1139                 display_login(NULL);
1140         }
1141
1142         /*
1143          * Various commands...
1144          */
1145
1146         else if (!strcasecmp(action, "do_welcome")) {
1147                 do_welcome();
1148         } else if (!strcasecmp(action, "blank")) {
1149                 blank_page();
1150         } else if (!strcasecmp(action, "do_template")) {
1151                 url_do_template();
1152         } else if (!strcasecmp(action, "display_aide_menu")) {
1153                 display_aide_menu();
1154         } else if (!strcasecmp(action, "display_main_menu")) {
1155                 display_main_menu();
1156         } else if (!strcasecmp(action, "who")) {
1157                 who();
1158         } else if (!strcasecmp(action, "who_inner_html")) {
1159                 begin_ajax_response();
1160                 who_inner_div();
1161                 end_ajax_response();
1162         } else if (!strcasecmp(action, "knrooms")) {
1163                 knrooms();
1164         } else if (!strcasecmp(action, "gotonext")) {
1165                 slrp_highest();
1166                 gotonext();
1167         } else if (!strcasecmp(action, "skip")) {
1168                 gotonext();
1169         } else if (!strcasecmp(action, "ungoto")) {
1170                 ungoto();
1171         } else if (!strcasecmp(action, "dotgoto")) {
1172                 if (WC->wc_view != VIEW_MAILBOX) {      /* dotgoto acts like dotskip when we're in a mailbox view */
1173                         slrp_highest();
1174                 }
1175                 smart_goto(bstr("room"));
1176         } else if (!strcasecmp(action, "dotskip")) {
1177                 smart_goto(bstr("room"));
1178         } else if (!strcasecmp(action, "termquit")) {
1179                 do_logout();
1180         } else if (!strcasecmp(action, "readnew")) {
1181                 readloop("readnew");
1182         } else if (!strcasecmp(action, "readold")) {
1183                 readloop("readold");
1184         } else if (!strcasecmp(action, "readfwd")) {
1185                 readloop("readfwd");
1186         } else if (!strcasecmp(action, "headers")) {
1187                 readloop("headers");
1188         } else if (!strcasecmp(action, "msg")) {
1189                 embed_message();
1190         } else if (!strcasecmp(action, "display_enter")) {
1191                 display_enter();
1192         } else if (!strcasecmp(action, "post")) {
1193                 post_message();
1194         } else if (!strcasecmp(action, "move_msg")) {
1195                 move_msg();
1196         } else if (!strcasecmp(action, "delete_msg")) {
1197                 delete_msg();
1198         } else if (!strcasecmp(action, "userlist")) {
1199                 userlist();
1200         } else if (!strcasecmp(action, "showuser")) {
1201                 showuser();
1202         } else if (!strcasecmp(action, "display_page")) {
1203                 display_page();
1204         } else if (!strcasecmp(action, "page_user")) {
1205                 page_user();
1206         } else if (!strcasecmp(action, "chat")) {
1207                 do_chat();
1208         } else if (!strcasecmp(action, "display_private")) {
1209                 display_private("", 0);
1210         } else if (!strcasecmp(action, "goto_private")) {
1211                 goto_private();
1212         } else if (!strcasecmp(action, "zapped_list")) {
1213                 zapped_list();
1214         } else if (!strcasecmp(action, "display_zap")) {
1215                 display_zap();
1216         } else if (!strcasecmp(action, "zap")) {
1217                 zap();
1218         } else if (!strcasecmp(action, "display_entroom")) {
1219                 display_entroom();
1220         } else if (!strcasecmp(action, "entroom")) {
1221                 entroom();
1222         } else if (!strcasecmp(action, "display_whok")) {
1223                 display_whok();
1224         } else if (!strcasecmp(action, "do_invt_kick")) {
1225                 do_invt_kick();
1226         } else if (!strcasecmp(action, "display_editroom")) {
1227                 display_editroom();
1228         } else if (!strcasecmp(action, "netedit")) {
1229                 netedit();
1230         } else if (!strcasecmp(action, "editroom")) {
1231                 editroom();
1232         } else if (!strcasecmp(action, "display_editinfo")) {
1233                 display_edit(_("Room info"), "EINF 0", "RINF", "/editinfo", 1);
1234         } else if (!strcasecmp(action, "editinfo")) {
1235                 save_edit(_("Room info"), "EINF 1", 1);
1236         } else if (!strcasecmp(action, "display_editbio")) {
1237                 sprintf(buf, "RBIO %s", WC->wc_username);
1238                 display_edit(_("Your bio"), "NOOP", buf, "editbio", 3);
1239         } else if (!strcasecmp(action, "editbio")) {
1240                 save_edit(_("Your bio"), "EBIO", 0);
1241         } else if (!strcasecmp(action, "confirm_move_msg")) {
1242                 confirm_move_msg();
1243         } else if (!strcasecmp(action, "delete_room")) {
1244                 delete_room();
1245         } else if (!strcasecmp(action, "validate")) {
1246                 validate();
1247         } else if (!strcasecmp(action, "display_editpic")) {
1248                 display_graphics_upload(_("your photo"),
1249                                         "UIMG 0|_userpic_",
1250                                         "/editpic");
1251         } else if (!strcasecmp(action, "editpic")) {
1252                 do_graphics_upload("UIMG 1|_userpic_");
1253         } else if (!strcasecmp(action, "display_editroompic")) {
1254                 display_graphics_upload(_("the icon for this room"),
1255                                         "UIMG 0|_roompic_",
1256                                         "/editroompic");
1257         } else if (!strcasecmp(action, "editroompic")) {
1258                 do_graphics_upload("UIMG 1|_roompic_");
1259         } else if (!strcasecmp(action, "delete_floor")) {
1260                 delete_floor();
1261         } else if (!strcasecmp(action, "rename_floor")) {
1262                 rename_floor();
1263         } else if (!strcasecmp(action, "create_floor")) {
1264                 create_floor();
1265         } else if (!strcasecmp(action, "display_editfloorpic")) {
1266                 sprintf(buf, "UIMG 0|_floorpic_|%s",
1267                         bstr("which_floor"));
1268                 display_graphics_upload(_("the icon for this floor"),
1269                                         buf,
1270                                         "/editfloorpic");
1271         } else if (!strcasecmp(action, "editfloorpic")) {
1272                 sprintf(buf, "UIMG 1|_floorpic_|%s",
1273                         bstr("which_floor"));
1274                 do_graphics_upload(buf);
1275         } else if (!strcasecmp(action, "display_reg")) {
1276                 display_reg(0);
1277         } else if (!strcasecmp(action, "display_changepw")) {
1278                 display_changepw();
1279         } else if (!strcasecmp(action, "changepw")) {
1280                 changepw();
1281         } else if (!strcasecmp(action, "display_edit_node")) {
1282                 display_edit_node();
1283         } else if (!strcasecmp(action, "edit_node")) {
1284                 edit_node();
1285         } else if (!strcasecmp(action, "display_netconf")) {
1286                 display_netconf();
1287         } else if (!strcasecmp(action, "display_confirm_delete_node")) {
1288                 display_confirm_delete_node();
1289         } else if (!strcasecmp(action, "delete_node")) {
1290                 delete_node();
1291         } else if (!strcasecmp(action, "display_add_node")) {
1292                 display_add_node();
1293         } else if (!strcasecmp(action, "add_node")) {
1294                 add_node();
1295         } else if (!strcasecmp(action, "terminate_session")) {
1296                 slrp_highest();
1297                 terminate_session();
1298         } else if (!strcasecmp(action, "edit_me")) {
1299                 edit_me();
1300         } else if (!strcasecmp(action, "display_siteconfig")) {
1301                 display_siteconfig();
1302         } else if (!strcasecmp(action, "chat_recv")) {
1303                 chat_recv();
1304         } else if (!strcasecmp(action, "chat_send")) {
1305                 chat_send();
1306         } else if (!strcasecmp(action, "siteconfig")) {
1307                 siteconfig();
1308         } else if (!strcasecmp(action, "display_generic")) {
1309                 display_generic();
1310         } else if (!strcasecmp(action, "do_generic")) {
1311                 do_generic();
1312         } else if (!strcasecmp(action, "display_menubar")) {
1313                 display_menubar(1);
1314         } else if (!strcasecmp(action, "output_mimepart")) {
1315                 output_mimepart();
1316         } else if (!strcasecmp(action, "edit_vcard")) {
1317                 edit_vcard();
1318         } else if (!strcasecmp(action, "submit_vcard")) {
1319                 submit_vcard();
1320         } else if (!strcasecmp(action, "select_user_to_edit")) {
1321                 select_user_to_edit(NULL, NULL);
1322         } else if (!strcasecmp(action, "display_edituser")) {
1323                 display_edituser(NULL, 0);
1324         } else if (!strcasecmp(action, "edituser")) {
1325                 edituser();
1326         } else if (!strcasecmp(action, "create_user")) {
1327                 create_user();
1328         } else if (!strcasecmp(action, "changeview")) {
1329                 change_view();
1330         } else if (!strcasecmp(action, "do_stuff_to_msgs")) {
1331                 do_stuff_to_msgs();
1332         } else if (!strcasecmp(action, "change_start_page")) {
1333                 change_start_page();
1334         } else if (!strcasecmp(action, "display_floorconfig")) {
1335                 display_floorconfig(NULL);
1336         } else if (!strcasecmp(action, "toggle_self_service")) {
1337                 toggle_self_service();
1338 #ifdef WEBCIT_WITH_CALENDAR_SERVICE
1339         } else if (!strcasecmp(action, "display_edit_task")) {
1340                 display_edit_task();
1341         } else if (!strcasecmp(action, "save_task")) {
1342                 save_task();
1343         } else if (!strcasecmp(action, "display_edit_event")) {
1344                 display_edit_event();
1345         } else if (!strcasecmp(action, "save_event")) {
1346                 save_event();
1347         } else if (!strcasecmp(action, "respond_to_request")) {
1348                 respond_to_request();
1349         } else if (!strcasecmp(action, "handle_rsvp")) {
1350                 handle_rsvp();
1351 #endif
1352         } else if (!strcasecmp(action, "summary")) {
1353                 summary();
1354         } else if (!strcasecmp(action, "summary_inner_div")) {
1355                 begin_ajax_response();
1356                 summary_inner_div();
1357                 end_ajax_response();
1358         } else if (!strcasecmp(action, "iconbar")) {
1359                 do_iconbar();
1360         } else if (!strcasecmp(action, "display_customize_iconbar")) {
1361                 display_customize_iconbar();
1362         } else if (!strcasecmp(action, "commit_iconbar")) {
1363                 commit_iconbar();
1364         } else if (!strcasecmp(action, "set_room_policy")) {
1365                 set_room_policy();
1366         } else if (!strcasecmp(action, "display_inetconf")) {
1367                 display_inetconf();
1368         } else if (!strcasecmp(action, "save_inetconf")) {
1369                 save_inetconf();
1370         } else if (!strcasecmp(action, "setup_wizard")) {
1371                 do_setup_wizard();
1372         } else if (!strcasecmp(action, "display_preferences")) {
1373                 display_preferences();
1374         } else if (!strcasecmp(action, "set_preferences")) {
1375                 set_preferences();
1376         } else if (!strcasecmp(action, "recp_autocomplete")) {
1377                 recp_autocomplete(bstr("recp"));
1378         } else if (!strcasecmp(action, "cc_autocomplete")) {
1379                 recp_autocomplete(bstr("cc"));
1380         } else if (!strcasecmp(action, "bcc_autocomplete")) {
1381                 recp_autocomplete(bstr("bcc"));
1382         } else if (!strcasecmp(action, "diagnostics")) {
1383                 output_headers(1, 1, 1, 0, 0, 0);
1384                 wprintf("Session: %d<hr />\n", WC->wc_session);
1385                 wprintf("Command: <br /><PRE>\n");
1386                 escputs(cmd);
1387                 wprintf("</PRE><hr />\n");
1388                 wprintf("Variables: <br /><PRE>\n");
1389                 dump_vars();
1390                 wprintf("</PRE><hr />\n");
1391                 wDumpContent(1);
1392         }
1393
1394         /* When all else fais, display the main menu. */
1395         else {
1396                 display_main_menu();
1397         }
1398
1399 SKIP_ALL_THIS_CRAP:
1400         fflush(stdout);
1401         if (content != NULL) {
1402                 free(content);
1403                 content = NULL;
1404         }
1405         free_urls();
1406         if (WC->upload_length > 0) {
1407                 free(WC->upload);
1408                 WC->upload_length = 0;
1409         }
1410
1411 }