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 /*
  16  * Subdirectories from which the client may request static content
  17  */
  18 char *static_content_dirs[] = {
  19         "static",
  20         "tiny_mce"
  21 };
  22
  23 /*
  24  * String to unset the cookie.
  25  * Any date "in the past" will work, so I chose my birthday, right down to
  26  * the exact minute.  :)
  27  */
  28 static char *unset = "; expires=28-May-1971 18:10:00 GMT";
  29
  30 void unescape_input(char *buf)
  31 {
  32         int a, b;
  33         char hex[3];
  34
  35         while ((isspace(buf[strlen(buf) - 1])) && (strlen(buf) > 0))
  36                 buf[strlen(buf) - 1] = 0;
  37
  38         for (a = 0; a < strlen(buf); ++a) {
  39                 if (buf[a] == '+')
  40                         buf[a] = ' ';
  41                 if (buf[a] == '%') {
  42                         hex[0] = buf[a + 1];
  43                         hex[1] = buf[a + 2];
  44                         hex[2] = 0;
  45                         b = 0;
  46                         sscanf(hex, "%02x", &b);
  47                         buf[a] = (char) b;
  48                         strcpy(&buf[a + 1], &buf[a + 3]);
  49                 }
  50         }
  51
  52 }
  53
  54
  55 void addurls(char *url)
  56 {
  57         char *up, *ptr;
  58         char buf[SIZ];
  59         int a, b;
  60         struct urlcontent *u;
  61
  62         up = url;
  63         while (strlen(up) > 0) {
  64
  65                 /* locate the = sign */
  66                 safestrncpy(buf, up, sizeof buf);
  67                 b = (-1);
  68                 for (a = 255; a >= 0; --a)
  69                         if (buf[a] == '=')
  70                                 b = a;
  71                 if (b < 0)
  72                         return;
  73                 buf[b] = 0;
  74
  75                 u = (struct urlcontent *) malloc(sizeof(struct urlcontent));
  76                 u->next = WC->urlstrings;
  77                 WC->urlstrings = u;
  78                 safestrncpy(u->url_key, buf, sizeof u->url_key);
  79
  80                 /* now chop that part off */
  81                 for (a = 0; a <= b; ++a)
  82                         ++up;
  83
  84                 /* locate "&" and "?" delimiters */
  85                 ptr = up;
  86                 b = strlen(up);
  87                 for (a = 0; a < strlen(up); ++a) {
  88                         if ( (ptr[0] == '&') || (ptr[0] == '?') ) {
  89                                 b = a;
  90                                 break;
  91                         }
  92                         ++ptr;
  93                 }
  94                 ptr = up;
  95                 for (a = 0; a < b; ++a)
  96                         ++ptr;
  97                 strcpy(ptr, "");
  98
  99                 u->url_data = malloc(strlen(up) + 2);
 100                 safestrncpy(u->url_data, up, strlen(up) + 1);
 101                 u->url_data[b] = 0;
 102                 unescape_input(u->url_data);
 103                 up = ptr;
 104                 ++up;
 105         }
 106 }
 107
 108 void free_urls(void)
 109 {
 110         struct urlcontent *u;
 111
 112         while (WC->urlstrings != NULL) {
 113                 free(WC->urlstrings->url_data);
 114                 u = WC->urlstrings->next;
 115                 free(WC->urlstrings);
 116                 WC->urlstrings = u;
 117         }
 118 }
 119
 120 /*
 121  * Diagnostic function to display the contents of all variables
 122  */
 123 void dump_vars(void)
 124 {
 125         struct urlcontent *u;
 126
 127         for (u = WC->urlstrings; u != NULL; u = u->next) {
 128                 wprintf("%38s = %s\n", u->url_key, u->url_data);
 129         }
 130 }
 131
 132 char *bstr(char *key)
 133 {
 134         struct urlcontent *u;
 135
 136         for (u = WC->urlstrings; u != NULL; u = u->next) {
 137                 if (!strcasecmp(u->url_key, key))
 138                         return (u->url_data);
 139         }
 140         return ("");
 141 }
 142
 143
 144 void wprintf(const char *format,...)
 145 {
 146         va_list arg_ptr;
 147         char wbuf[4096];
 148
 149         va_start(arg_ptr, format);
 150         vsnprintf(wbuf, sizeof wbuf, format, arg_ptr);
 151         va_end(arg_ptr);
 152
 153         client_write(wbuf, strlen(wbuf));
 154 }
 155
 156
 157 /*
 158  * wDumpContent() wraps up an HTTP session, closes tags, etc.
 159  *
 160  * print_standard_html_footer should be set to 0 to transmit only, 1 to
 161  * append the main menu and closing tags, or 2 to
 162  * append the closing tags only.
 163  */
 164 void wDumpContent(int print_standard_html_footer)
 165 {
 166         if (print_standard_html_footer) {
 167                 wprintf("</div>\n");    /* end of "text" div */
 168                 do_template("trailing");
 169         }
 170
 171         /* If we've been saving it all up for one big output burst,
 172          * go ahead and do that now.
 173          */
 174         end_burst();
 175 }
 176
 177
 178 /*
 179  * Copy a string, escaping characters which have meaning in HTML.  If
 180  * nbsp is nonzero, spaces are converted to non-breaking spaces.
 181  */
 182 void stresc(char *target, char *strbuf, int nbsp, int nolinebreaks)
 183 {
 184         int a;
 185         strcpy(target, "");
 186
 187         for (a = 0; a < strlen(strbuf); ++a) {
 188                 if (strbuf[a] == '<')
 189                         strcat(target, "&lt;");
 190                 else if (strbuf[a] == '>')
 191                         strcat(target, "&gt;");
 192                 else if (strbuf[a] == '&')
 193                         strcat(target, "&amp;");
 194                 else if (strbuf[a] == '\"')
 195                         strcat(target, "&quot;");
 196                 else if (strbuf[a] == '\'')
 197                         strcat(target, "&#39;");
 198                 else if (strbuf[a] == LB)
 199                         strcat(target, "<");
 200                 else if (strbuf[a] == RB)
 201                         strcat(target, ">");
 202                 else if (strbuf[a] == QU)
 203                         strcat(target, "\"");
 204                 else if ((strbuf[a] == 32) && (nbsp == 1))
 205                         strcat(target, "&nbsp;");
 206                 else if ((strbuf[a] == '\n') && (nolinebreaks))
 207                         strcat(target, "");     /* nothing */
 208                 else if ((strbuf[a] == '\r') && (nolinebreaks))
 209                         strcat(target, "");     /* nothing */
 210                 else
 211                         strncat(target, &strbuf[a], 1);
 212         }
 213 }
 214
 215 void escputs1(char *strbuf, int nbsp, int nolinebreaks)
 216 {
 217         char *buf;
 218
 219         if (strbuf == NULL) return;
 220         buf = malloc( (3 * strlen(strbuf)) + SIZ );
 221         stresc(buf, strbuf, nbsp, nolinebreaks);
 222         wprintf("%s", buf);
 223         free(buf);
 224 }
 225
 226 void escputs(char *strbuf)
 227 {
 228         escputs1(strbuf, 0, 0);
 229 }
 230
 231 /*
 232  * Escape a string for feeding out as a URL.
 233  * Returns a pointer to a buffer that must be freed by the caller!
 234  */
 235 void urlesc(char *outbuf, char *strbuf)
 236 {
 237         int a, b, c;
 238         char *ec = " #&;`'|*?-~<>^()[]{}$\"\\";
 239
 240         strcpy(outbuf, "");
 241
 242         for (a = 0; a < strlen(strbuf); ++a) {
 243                 c = 0;
 244                 for (b = 0; b < strlen(ec); ++b) {
 245                         if (strbuf[a] == ec[b])
 246                                 c = 1;
 247                 }
 248                 b = strlen(outbuf);
 249                 if (c == 1)
 250                         sprintf(&outbuf[b], "%%%02x", strbuf[a]);
 251                 else
 252                         sprintf(&outbuf[b], "%c", strbuf[a]);
 253         }
 254 }
 255
 256 void urlescputs(char *strbuf)
 257 {
 258         char outbuf[SIZ];
 259
 260         urlesc(outbuf, strbuf);
 261         wprintf("%s", outbuf);
 262 }
 263
 264
 265 /*
 266  * Copy a string, escaping characters for JavaScript strings.
 267  */
 268 void jsesc(char *target, char *strbuf)
 269 {
 270         int a;
 271         strcpy(target, "");
 272
 273         for (a = 0; a < strlen(strbuf); ++a) {
 274                 if (strbuf[a] == '<')
 275                         strcat(target, "[");
 276                 else if (strbuf[a] == '>')
 277                         strcat(target, "]");
 278                 else if (strbuf[a] == '\"')
 279                         strcat(target, "&quot;");
 280                 else if (strbuf[a] == '&')
 281                         strcat(target, "&amp;;");
 282                 else if (strbuf[a] == '\'')
 283                         strcat(target, "\\'");
 284                 else {
 285                         strncat(target, &strbuf[a], 1);
 286                 }
 287         }
 288 }
 289
 290 void jsescputs(char *strbuf)
 291 {
 292         char outbuf[SIZ];
 293
 294         jsesc(outbuf, strbuf);
 295         wprintf("%s", outbuf);
 296 }
 297
 298 /*
 299  * Copy a string, escaping characters for message text hold
 300  */
 301 void msgesc(char *target, char *strbuf)
 302 {
 303         int a;
 304         strcpy(target, "");
 305
 306         for (a = 0; a < strlen(strbuf); ++a) {
 307                 if (strbuf[a] == '\n')
 308                         strcat(target, " ");
 309                 else if (strbuf[a] == '\r')
 310                         strcat(target, " ");
 311                 else if (strbuf[a] == '\'')
 312                         strcat(target, "&#39;");
 313                 else {
 314                         strncat(target, &strbuf[a], 1);
 315                 }
 316         }
 317 }
 318
 319 void msgescputs(char *strbuf) {
 320         char *outbuf;
 321
 322         if (strbuf == NULL) return;
 323         outbuf = malloc( (3 * strlen(strbuf)) + SIZ);
 324         msgesc(outbuf, strbuf);
 325         wprintf("%s", outbuf);
 326         free(outbuf);
 327 }
 328
 329
 330
 331
 332 /*
 333  * Output all that important stuff that the browser will want to see
 334  */
 335 void output_headers(    int do_httpheaders,     /* 1 = output HTTP headers                          */
 336                         int do_htmlhead,        /* 1 = output HTML <head> section and <body> opener */
 337
 338                         int do_room_banner,     /* 0=no, 1=yes,                                     */
 339                                                 /* 2 = I'm going to embed my own, so don't open the */
 340                                                 /*     <div id="content"> either.                   */
 341
 342                         int unset_cookies,      /* 1 = session is terminating, so unset the cookies */
 343                         int suppress_check,     /* 1 = suppress check for instant messages          */
 344                         int cache               /* 1 = allow browser to cache this page             */
 345 ) {
 346         char cookie[SIZ];
 347         char httpnow[SIZ];
 348
 349         wprintf("HTTP/1.1 200 OK\n");
 350         httpdate(httpnow, time(NULL));
 351
 352         if (do_httpheaders) {
 353                 wprintf("Content-type: text/html; charset=utf-8\r\n"
 354                         "Server: %s / %s\n"
 355                         "Connection: close\r\n",
 356                         SERVER, serv_info.serv_software
 357                 );
 358         }
 359
 360         if (cache) {
 361                 wprintf("Pragma: public\r\n"
 362                         "Cache-Control: max-age=3600, must-revalidate\r\n"
 363                         "Last-modified: %s\r\n",
 364                         httpnow
 365                 );
 366         }
 367         else {
 368                 wprintf("Pragma: no-cache\r\n"
 369                         "Cache-Control: no-store\r\n"
 370                 );
 371         }
 372
 373         stuff_to_cookie(cookie, WC->wc_session, WC->wc_username,
 374                         WC->wc_password, WC->wc_roomname);
 375
 376         if (unset_cookies) {
 377                 wprintf("Set-cookie: webcit=%s; path=/\r\n", unset);
 378         } else {
 379                 wprintf("Set-cookie: webcit=%s; path=/\r\n", cookie);
 380                 if (server_cookie != NULL) {
 381                         wprintf("%s\n", server_cookie);
 382                 }
 383         }
 384
 385         if (do_htmlhead) {
 386                 /* wprintf("\n"); */
 387                 begin_burst();
 388                 do_template("head");
 389         }
 390
 391         /* ICONBAR */
 392         if (do_htmlhead) {
 393
 394                 if (WC->HaveInstantMessages) {
 395                         wprintf("<div id=\"page_popup\">\n");
 396                         page_popup();
 397                         wprintf("</div>\n");
 398                 }
 399                 if (strlen(WC->ImportantMessage) > 0) {
 400                         wprintf("<div id=\"important_message\">\n");
 401                         wprintf("<SPAN CLASS=\"imsg\">"
 402                                 "%s</SPAN><br />\n", WC->ImportantMessage);
 403                         wprintf("</div>\n");
 404                         wprintf("<script type=\"text/javascript\">\n"
 405                                 "        setTimeout('hide_imsg_popup()', 3000); \n"
 406                                 "</script>\n");
 407                         safestrncpy(WC->ImportantMessage, "", sizeof WC->ImportantMessage);
 408                 }
 409                 if ( (WC->logged_in) && (!unset_cookies) ) {
 410                         wprintf("<div id=\"iconbar\">");
 411                         do_iconbar();
 412                         wprintf("</div>\n");
 413                 }
 414                 if (do_room_banner == 1) {
 415                         wprintf("<div id=\"banner\">\n");
 416                         embed_room_banner(NULL, navbar_default);
 417                         wprintf("</div>\n");
 418                 }
 419         }
 420
 421         if (do_room_banner == 1) {
 422                 wprintf("<div id=\"content\">\n");
 423         }
 424 }
 425
 426
 427 /*
 428  * Generic function to do an HTTP redirect.  Easy and fun.
 429  */
 430 void http_redirect(char *whichpage) {
 431         wprintf("HTTP/1.1 302 Moved Temporarily\n");
 432         wprintf("Location: %s\r\n", whichpage);
 433         wprintf("URI: %s\r\n", whichpage);
 434         wprintf("Content-type: text/html; charset=utf-8\r\n\r\n");
 435         wprintf("<html><body>");
 436         wprintf("Go <A HREF=\"%s\">here</A>.", whichpage);
 437         wprintf("</body></html>\n");
 438 }
 439
 440
 441
 442 void check_for_instant_messages()
 443 {
 444         char buf[SIZ];
 445
 446         serv_puts("NOOP");
 447         serv_getln(buf, sizeof buf);
 448         if (buf[3] == '*') WC->HaveInstantMessages = 1;
 449 }
 450
 451
 452
 453
 454 /*
 455  * Output a piece of content to the web browser
 456  */
 457 void http_transmit_thing(char *thing, size_t length, char *content_type,
 458                          int is_static) {
 459
 460         output_headers(0, 0, 0, 0, 0, is_static);
 461
 462         wprintf("Content-type: %s\r\n"
 463                 "Server: %s\r\n"
 464                 "Connection: close\r\n",
 465                 content_type,
 466                 SERVER);
 467
 468 #ifdef HAVE_ZLIB
 469         /* If we can send the data out compressed, please do so. */
 470         if (WC->gzip_ok) {
 471                 char *compressed_data = NULL;
 472                 uLongf compressed_len;
 473
 474                 compressed_len = (uLongf) ((length * 101) / 100) + 100;
 475                 compressed_data = malloc(compressed_len);
 476
 477                 if (compress_gzip((Bytef *) compressed_data,
 478                                   &compressed_len,
 479                                   (Bytef *) thing,
 480                                   (uLongf) length, Z_BEST_SPEED) == Z_OK) {
 481                         wprintf("Content-encoding: gzip\r\n"
 482                                 "Content-length: %ld\r\n"
 483                                 "\r\n",
 484                                 (long) compressed_len
 485                         );
 486                         client_write(compressed_data, (size_t)compressed_len);
 487                         free(compressed_data);
 488                         return;
 489                 }
 490         }
 491 #endif
 492
 493         /* No compression ... just send it out as-is */
 494         wprintf("Content-length: %ld\r\n"
 495                 "\r\n",
 496                 (long) length
 497         );
 498         client_write(thing, (size_t)length);
 499 }
 500
 501
 502
 503
 504 void output_static(char *what)
 505 {
 506         FILE *fp;
 507         struct stat statbuf;
 508         off_t bytes;
 509         char *bigbuffer;
 510         char content_type[128];
 511
 512         fp = fopen(what, "rb");
 513         if (fp == NULL) {
 514                 lprintf(9, "output_static('%s')  -- NOT FOUND --\n", what);
 515                 wprintf("HTTP/1.1 404 %s\n", strerror(errno));
 516                 wprintf("Content-Type: text/plain\r\n");
 517                 wprintf("\r\n");
 518                 wprintf("Cannot open %s: %s\n", what, strerror(errno));
 519         } else {
 520                 if (!strncasecmp(&what[strlen(what) - 4], ".gif", 4))
 521                         safestrncpy(content_type, "image/gif", sizeof content_type);
 522                 else if (!strncasecmp(&what[strlen(what) - 4], ".txt", 4))
 523                         safestrncpy(content_type, "text/plain", sizeof content_type);
 524                 else if (!strncasecmp(&what[strlen(what) - 4], ".css", 4))
 525                         safestrncpy(content_type, "text/css", sizeof content_type);
 526                 else if (!strncasecmp(&what[strlen(what) - 4], ".jpg", 4))
 527                         safestrncpy(content_type, "image/jpeg", sizeof content_type);
 528                 else if (!strncasecmp(&what[strlen(what) - 4], ".png", 4))
 529                         safestrncpy(content_type, "image/png", sizeof content_type);
 530                 else if (!strncasecmp(&what[strlen(what) - 4], ".ico", 4))
 531                         safestrncpy(content_type, "image/x-icon", sizeof content_type);
 532                 else if (!strncasecmp(&what[strlen(what) - 5], ".html", 5))
 533                         safestrncpy(content_type, "text/html", sizeof content_type);
 534                 else if (!strncasecmp(&what[strlen(what) - 4], ".htm", 4))
 535                         safestrncpy(content_type, "text/html", sizeof content_type);
 536                 else if (!strncasecmp(&what[strlen(what) - 4], ".wml", 4))
 537                         safestrncpy(content_type, "text/vnd.wap.wml", sizeof content_type);
 538                 else if (!strncasecmp(&what[strlen(what) - 5], ".wmls", 5))
 539                         safestrncpy(content_type, "text/vnd.wap.wmlscript", sizeof content_type);
 540                 else if (!strncasecmp(&what[strlen(what) - 5], ".wmlc", 5))
 541                         safestrncpy(content_type, "application/vnd.wap.wmlc", sizeof content_type);
 542                 else if (!strncasecmp(&what[strlen(what) - 6], ".wmlsc", 6))
 543                         safestrncpy(content_type, "application/vnd.wap.wmlscriptc", sizeof content_type);
 544                 else if (!strncasecmp(&what[strlen(what) - 5], ".wbmp", 5))
 545                         safestrncpy(content_type, "image/vnd.wap.wbmp", sizeof content_type);
 546                 else if (!strncasecmp(&what[strlen(what) - 3], ".js", 3))
 547                         safestrncpy(content_type, "text/javascript", sizeof content_type);
 548                 else
 549                         safestrncpy(content_type, "application/octet-stream", sizeof content_type);
 550
 551                 fstat(fileno(fp), &statbuf);
 552                 bytes = statbuf.st_size;
 553                 bigbuffer = malloc(bytes + 2);
 554                 fread(bigbuffer, bytes, 1, fp);
 555                 fclose(fp);
 556
 557                 lprintf(9, "output_static('%s')  %s\n", what, content_type);
 558                 http_transmit_thing(bigbuffer, (size_t)bytes, content_type, 1);
 559                 free(bigbuffer);
 560         }
 561         if (!strcasecmp(bstr("force_close_session"), "yes")) {
 562                 end_webcit_session();
 563         }
 564 }
 565
 566
 567 /*
 568  * When the browser requests an image file from the Citadel server,
 569  * this function is called to transmit it.
 570  */
 571 void output_image()
 572 {
 573         char buf[SIZ];
 574         char *xferbuf = NULL;
 575         off_t bytes;
 576
 577         serv_printf("OIMG %s|%s", bstr("name"), bstr("parm"));
 578         serv_getln(buf, sizeof buf);
 579         if (buf[0] == '2') {
 580                 bytes = extract_long(&buf[4], 0);
 581                 xferbuf = malloc(bytes + 2);
 582
 583                 /* Read it from the server */
 584                 read_server_binary(xferbuf, bytes);
 585                 serv_puts("CLOS");
 586                 serv_getln(buf, sizeof buf);
 587
 588                 /* Write it to the browser */
 589                 http_transmit_thing(xferbuf, (size_t)bytes, "image/gif", 0);
 590                 free(xferbuf);
 591
 592         } else {
 593                 /* Instead of an ugly 404, send a 1x1 transparent GIF
 594                  * when there's no such image on the server.
 595                  */
 596                 output_static("static/blank.gif");
 597         }
 598
 599
 600
 601 }
 602
 603 /*
 604  * Generic function to output an arbitrary MIME part from an arbitrary
 605  * message number on the server.
 606  */
 607 void mimepart(char *msgnum, char *partnum)
 608 {
 609         char buf[SIZ];
 610         off_t bytes;
 611         char content_type[SIZ];
 612         char *content = NULL;
 613
 614         serv_printf("OPNA %s|%s", msgnum, partnum);
 615         serv_getln(buf, sizeof buf);
 616         if (buf[0] == '2') {
 617                 bytes = extract_long(&buf[4], 0);
 618                 content = malloc(bytes + 2);
 619                 extract_token(content_type, &buf[4], 3, '|', sizeof content_type);
 620                 output_headers(0, 0, 0, 0, 0, 0);
 621                 read_server_binary(content, bytes);
 622                 serv_puts("CLOS");
 623                 serv_getln(buf, sizeof buf);
 624                 http_transmit_thing(content, bytes, content_type, 0);
 625                 free(content);
 626         } else {
 627                 wprintf("HTTP/1.1 404 %s\n", &buf[4]);
 628                 output_headers(0, 0, 0, 0, 0, 0);
 629                 wprintf("Content-Type: text/plain\r\n");
 630                 wprintf("\r\n");
 631                 wprintf(_("An error occurred while retrieving this part: %s\n"), &buf[4]);
 632         }
 633
 634 }
 635
 636
 637 /*
 638  * Read any MIME part of a message, from the server, into memory.
 639  */
 640 char *load_mimepart(long msgnum, char *partnum)
 641 {
 642         char buf[SIZ];
 643         off_t bytes;
 644         char content_type[SIZ];
 645         char *content;
 646
 647         serv_printf("OPNA %ld|%s", msgnum, partnum);
 648         serv_getln(buf, sizeof buf);
 649         if (buf[0] == '2') {
 650                 bytes = extract_long(&buf[4], 0);
 651                 extract_token(content_type, &buf[4], 3, '|', sizeof content_type);
 652
 653                 content = malloc(bytes + 2);
 654                 read_server_binary(content, bytes);
 655
 656                 serv_puts("CLOS");
 657                 serv_getln(buf, sizeof buf);
 658                 content[bytes] = 0;     /* null terminate for good measure */
 659                 return(content);
 660         }
 661         else {
 662                 return(NULL);
 663         }
 664
 665 }
 666
 667
 668 /*
 669  * Convenience functions to display a page containing only a string
 670  */
 671 void convenience_page(char *titlebarcolor, char *titlebarmsg, char *messagetext)
 672 {
 673         wprintf("HTTP/1.1 200 OK\n");
 674         output_headers(1, 1, 2, 0, 0, 0);
 675         wprintf("<div id=\"banner\">\n");
 676         wprintf("<TABLE WIDTH=100%% BORDER=0 BGCOLOR=\"#%s\"><TR><TD>", titlebarcolor);
 677         wprintf("<SPAN CLASS=\"titlebar\">%s</SPAN>\n", titlebarmsg);
 678         wprintf("</TD></TR></TABLE>\n");
 679         wprintf("</div>\n<div id=\"content\">\n");
 680         escputs(messagetext);
 681
 682         wprintf("<hr />\n");
 683         wDumpContent(1);
 684 }
 685
 686
 687 /*
 688  * Display a blank page.
 689  */
 690 void blank_page(void) {
 691         output_headers(1, 1, 0, 0, 0, 0);
 692         wDumpContent(2);
 693 }
 694
 695
 696 /*
 697  * A template has been requested
 698  */
 699 void url_do_template(void) {
 700         do_template(bstr("template"));
 701 }
 702
 703
 704
 705 /*
 706  * Offer to make any page the user's "start page."
 707  */
 708 void offer_start_page(void) {
 709         wprintf("<A HREF=\"/change_start_page?startpage=");
 710         urlescputs(WC->this_page);
 711         wprintf("\"><FONT SIZE=-2 COLOR=\"#AAAAAA\">");
 712         wprintf(_("Make this my start page"));
 713         wprintf("</FONT></A>");
 714 /*
 715         wprintf("<br/><a href=\"/rss?room=");
 716         urlescputs(WC->wc_roomname);
 717         wprintf("\" title=\"RSS 2.0 feed for ");
 718         escputs(WC->wc_roomname);
 719         wprintf("\"><img alt=\"RSS\" border=\"0\" src=\"/static/xml_button.gif\"/></a>\n");
 720 */
 721 }
 722
 723
 724 /*
 725  * Change the user's start page
 726  */
 727 void change_start_page(void) {
 728
 729         if (bstr("startpage") == NULL) {
 730                 safestrncpy(WC->ImportantMessage,
 731                         _("You no longer have a start page selected."),
 732                         sizeof WC->ImportantMessage);
 733                 display_main_menu();
 734                 return;
 735         }
 736
 737         set_preference("startpage", bstr("startpage"), 1);
 738
 739         output_headers(1, 1, 0, 0, 0, 0);
 740         do_template("newstartpage");
 741         wDumpContent(1);
 742 }
 743
 744
 745
 746
 747 void display_success(char *successmessage)
 748 {
 749         convenience_page("007700", "OK", successmessage);
 750 }
 751
 752
 753 /* Authorization required page */
 754 /* This is probably temporary and should be revisited */
 755 void authorization_required(const char *message)
 756 {
 757         wprintf("HTTP/1.1 401 Authorization Required\r\n");
 758         wprintf("WWW-Authenticate: Basic realm=\"\"\r\n", serv_info.serv_humannode);
 759         wprintf("Content-Type: text/html\r\n\r\n");
 760         wprintf("<h1>");
 761         wprintf(_("Authorization Required"));
 762         wprintf("</h1>\r\n");
 763         wprintf(_("The resource you requested requires a valid username and password. "
 764                 "You could not be logged in: %s\n"), message);
 765         wDumpContent(0);
 766 }
 767
 768
 769 void upload_handler(char *name, char *filename, char *partnum, char *disp,
 770                         void *content, char *cbtype, char *cbcharset,
 771                         size_t length, char *encoding, void *userdata)
 772 {
 773         struct urlcontent *u;
 774
 775         /* lprintf(9, "upload_handler() name=%s, type=%s, len=%d\n",
 776                 name, cbtype, length); */
 777
 778         /* Form fields */
 779         if ( (length > 0) && (strlen(cbtype) == 0) ) {
 780                 u = (struct urlcontent *) malloc(sizeof(struct urlcontent));
 781                 u->next = WC->urlstrings;
 782                 WC->urlstrings = u;
 783                 safestrncpy(u->url_key, name, sizeof(u->url_key));
 784                 u->url_data = malloc(length + 1);
 785                 memcpy(u->url_data, content, length);
 786                 u->url_data[length] = 0;
 787         }
 788
 789         /* Uploaded files */
 790         if ( (length > 0) && (strlen(cbtype) > 0) ) {
 791                 WC->upload = malloc(length);
 792                 if (WC->upload != NULL) {
 793                         WC->upload_length = length;
 794                         safestrncpy(WC->upload_filename, filename,
 795                                         sizeof(WC->upload_filename));
 796                         safestrncpy(WC->upload_content_type, cbtype,
 797                                         sizeof(WC->upload_content_type));
 798                         memcpy(WC->upload, content, length);
 799                 }
 800                 else {
 801                         lprintf(3, "malloc() failed: %s\n", strerror(errno));
 802                 }
 803         }
 804
 805 }
 806
 807 /*
 808  * Convenience functions to wrap around asynchronous ajax responses
 809  */
 810 void begin_ajax_response(void) {
 811         output_headers(0, 0, 0, 0, 0, 0);
 812
 813         wprintf("Content-type: text/html; charset=UTF-8\r\n"
 814                 "Server: %s\r\n"
 815                 "Connection: close\r\n"
 816                 "Pragma: no-cache\r\n"
 817                 "Cache-Control: no-cache\r\n",
 818                 SERVER);
 819         begin_burst();
 820 }
 821
 822 void end_ajax_response(void) {
 823         wprintf("\r\n");
 824         wDumpContent(0);
 825 }
 826
 827
 828
 829 /*
 830  * Entry point for WebCit transaction
 831  */
 832 void session_loop(struct httprequest *req)
 833 {
 834         char cmd[1024];
 835         char action[1024];
 836         char arg1[128];
 837         char arg2[128];
 838         char arg3[128];
 839         char arg4[128];
 840         char arg5[128];
 841         char arg6[128];
 842         char arg7[128];
 843         char buf[SIZ];
 844         char request_method[128];
 845         char pathname[1024];
 846         int a, b;
 847         int ContentLength = 0;
 848         int BytesRead = 0;
 849         char ContentType[512];
 850         char *content = NULL;
 851         char *content_end = NULL;
 852         struct httprequest *hptr;
 853         char browser_host[SIZ];
 854         char user_agent[SIZ];
 855         int body_start = 0;
 856         int is_static = 0;
 857
 858         /* We stuff these with the values coming from the client cookies,
 859          * so we can use them to reconnect a timed out session if we have to.
 860          */
 861         char c_username[SIZ];
 862         char c_password[SIZ];
 863         char c_roomname[SIZ];
 864         char c_httpauth_string[SIZ];
 865         char c_httpauth_user[SIZ];
 866         char c_httpauth_pass[SIZ];
 867         char cookie[SIZ];
 868
 869         safestrncpy(c_username, "", sizeof c_username);
 870         safestrncpy(c_password, "", sizeof c_password);
 871         safestrncpy(c_roomname, "", sizeof c_roomname);
 872         safestrncpy(c_httpauth_string, "", sizeof c_httpauth_string);
 873         safestrncpy(c_httpauth_user, DEFAULT_HTTPAUTH_USER, sizeof c_httpauth_user);
 874         safestrncpy(c_httpauth_pass, DEFAULT_HTTPAUTH_PASS, sizeof c_httpauth_pass);
 875
 876         WC->upload_length = 0;
 877         WC->upload = NULL;
 878         WC->vars = NULL;
 879
 880         WC->is_wap = 0;
 881
 882         hptr = req;
 883         if (hptr == NULL) return;
 884
 885         safestrncpy(cmd, hptr->line, sizeof cmd);
 886         hptr = hptr->next;
 887         extract_token(request_method, cmd, 0, ' ', sizeof request_method);
 888         extract_token(pathname, cmd, 1, ' ', sizeof pathname);
 889
 890         /* Figure out the action */
 891         extract_token(action, pathname, 1, '/', sizeof action);
 892         if (strstr(action, "?")) *strstr(action, "?") = 0;
 893         if (strstr(action, "&")) *strstr(action, "&") = 0;
 894         if (strstr(action, " ")) *strstr(action, " ") = 0;
 895
 896         extract_token(arg1, pathname, 2, '/', sizeof arg1);
 897         if (strstr(arg1, "?")) *strstr(arg1, "?") = 0;
 898         if (strstr(arg1, "&")) *strstr(arg1, "&") = 0;
 899         if (strstr(arg1, " ")) *strstr(arg1, " ") = 0;
 900
 901         extract_token(arg2, pathname, 3, '/', sizeof arg2);
 902         if (strstr(arg2, "?")) *strstr(arg2, "?") = 0;
 903         if (strstr(arg2, "&")) *strstr(arg2, "&") = 0;
 904         if (strstr(arg2, " ")) *strstr(arg2, " ") = 0;
 905
 906         extract_token(arg3, pathname, 4, '/', sizeof arg3);
 907         if (strstr(arg3, "?")) *strstr(arg3, "?") = 0;
 908         if (strstr(arg3, "&")) *strstr(arg3, "&") = 0;
 909         if (strstr(arg3, " ")) *strstr(arg3, " ") = 0;
 910
 911         extract_token(arg4, pathname, 5, '/', sizeof arg4);
 912         if (strstr(arg4, "?")) *strstr(arg4, "?") = 0;
 913         if (strstr(arg4, "&")) *strstr(arg4, "&") = 0;
 914         if (strstr(arg4, " ")) *strstr(arg4, " ") = 0;
 915
 916         extract_token(arg5, pathname, 6, '/', sizeof arg5);
 917         if (strstr(arg5, "?")) *strstr(arg5, "?") = 0;
 918         if (strstr(arg5, "&")) *strstr(arg5, "&") = 0;
 919         if (strstr(arg5, " ")) *strstr(arg5, " ") = 0;
 920
 921         extract_token(arg6, pathname, 7, '/', sizeof arg6);
 922         if (strstr(arg6, "?")) *strstr(arg6, "?") = 0;
 923         if (strstr(arg6, "&")) *strstr(arg6, "&") = 0;
 924         if (strstr(arg6, " ")) *strstr(arg6, " ") = 0;
 925
 926         extract_token(arg7, pathname, 8, '/', sizeof arg7);
 927         if (strstr(arg7, "?")) *strstr(arg7, "?") = 0;
 928         if (strstr(arg7, "&")) *strstr(arg7, "&") = 0;
 929         if (strstr(arg7, " ")) *strstr(arg7, " ") = 0;
 930
 931         while (hptr != NULL) {
 932                 safestrncpy(buf, hptr->line, sizeof buf);
 933                 hptr = hptr->next;
 934
 935                 if (!strncasecmp(buf, "Cookie: webcit=", 15)) {
 936                         safestrncpy(cookie, &buf[15], sizeof cookie);
 937                         cookie_to_stuff(cookie, NULL,
 938                                         c_username, sizeof c_username,
 939                                         c_password, sizeof c_password,
 940                                         c_roomname, sizeof c_roomname);
 941                 }
 942                 else if (!strncasecmp(buf, "Authorization: Basic ", 21)) {
 943                         CtdlDecodeBase64(c_httpauth_string, &buf[21], strlen(&buf[21]));
 944                         extract_token(c_httpauth_user, c_httpauth_string, 0, ':', sizeof c_httpauth_user);
 945                         extract_token(c_httpauth_pass, c_httpauth_string, 1, ':', sizeof c_httpauth_pass);
 946                 }
 947                 else if (!strncasecmp(buf, "Content-length: ", 16)) {
 948                         ContentLength = atoi(&buf[16]);
 949                 }
 950                 else if (!strncasecmp(buf, "Content-type: ", 14)) {
 951                         safestrncpy(ContentType, &buf[14], sizeof ContentType);
 952                 }
 953                 else if (!strncasecmp(buf, "User-agent: ", 12)) {
 954                         safestrncpy(user_agent, &buf[12], sizeof user_agent);
 955                 }
 956                 else if (!strncasecmp(buf, "Host: ", 6)) {
 957                         safestrncpy(WC->http_host, &buf[6], sizeof WC->http_host);
 958                 }
 959                 /* Only WAP gateways explicitly name this content-type */
 960                 else if (strstr(buf, "text/vnd.wap.wml")) {
 961                         WC->is_wap = 1;
 962                 }
 963         }
 964
 965         if (ContentLength > 0) {
 966                 content = malloc(ContentLength + SIZ);
 967                 memset(content, 0, ContentLength + SIZ);
 968                 sprintf(content, "Content-type: %s\n"
 969                                 "Content-length: %d\n\n",
 970                                 ContentType, ContentLength);
 971                 body_start = strlen(content);
 972
 973                 /* Read the entire input data at once. */
 974                 client_read(WC->http_sock, &content[BytesRead+body_start],
 975                         ContentLength);
 976
 977                 if (!strncasecmp(ContentType,
 978                               "application/x-www-form-urlencoded", 33)) {
 979                         addurls(&content[body_start]);
 980                 } else if (!strncasecmp(ContentType, "multipart", 9)) {
 981                         content_end = content + ContentLength + body_start;
 982                         mime_parser(content, content_end, *upload_handler,
 983                                         NULL, NULL, NULL, 0);
 984                 }
 985         } else {
 986                 content = NULL;
 987         }
 988
 989         /* make a note of where we are in case the user wants to save it */
 990         safestrncpy(WC->this_page, cmd, sizeof(WC->this_page));
 991         remove_token(WC->this_page, 2, ' ');
 992         remove_token(WC->this_page, 0, ' ');
 993
 994         /* If there are variables in the URL, we must grab them now */
 995         for (a = 0; a < strlen(cmd); ++a) {
 996                 if ((cmd[a] == '?') || (cmd[a] == '&')) {
 997                         for (b = a; b < strlen(cmd); ++b)
 998                                 if (isspace(cmd[b]))
 999                                         cmd[b] = 0;
1000                         addurls(&cmd[a + 1]);
1001                         cmd[a] = 0;
1002                 }
1003         }
1004
1005
1006         /* Static content can be sent without connecting to Citadel. */
1007         is_static = 0;
1008         for (a=0; a<(sizeof(static_content_dirs) / sizeof(char *)); ++a) {
1009                 if (!strcasecmp(action, static_content_dirs[a])) {
1010                         is_static = 1;
1011                 }
1012         }
1013         if (is_static) {
1014                 snprintf(buf, sizeof buf, "%s/%s/%s/%s/%s/%s/%s/%s",
1015                         action, arg1, arg2, arg3, arg4, arg5, arg6, arg7);
1016                 for (a=0; a<8; ++a) {
1017                         if (buf[strlen(buf)-1] == '/') {
1018                                 buf[strlen(buf)-1] = 0;
1019                         }
1020                 }
1021                 for (a = 0; a < strlen(buf); ++a) {
1022                         if (isspace(buf[a])) {
1023                                 buf[a] = 0;
1024                         }
1025                 }
1026                 output_static(buf);
1027                 goto SKIP_ALL_THIS_CRAP;        /* Don't try to connect */
1028         }
1029
1030         /*
1031          * If we're not connected to a Citadel server, try to hook up the
1032          * connection now.
1033          */
1034         if (!WC->connected) {
1035                 if (!strcasecmp(ctdlhost, "uds")) {
1036                         /* unix domain socket */
1037                         sprintf(buf, "%s/citadel.socket", ctdlport);
1038                         WC->serv_sock = uds_connectsock(buf);
1039                 }
1040                 else {
1041                         /* tcp socket */
1042                         WC->serv_sock = tcp_connectsock(ctdlhost, ctdlport);
1043                 }
1044
1045                 if (WC->serv_sock < 0) {
1046                         do_logout();
1047                         goto SKIP_ALL_THIS_CRAP;
1048                 }
1049                 else {
1050                         WC->connected = 1;
1051                         serv_getln(buf, sizeof buf);    /* get the server welcome message */
1052                         locate_host(browser_host, WC->http_sock);
1053                         get_serv_info(browser_host, user_agent);
1054                         if (serv_info.serv_rev_level < MINIMUM_CIT_VERSION) {
1055                                 wprintf(_("You are connected to a Citadel "
1056                                         "server running Citadel %d.%02d. \n"
1057                                         "In order to run this version of WebCit "
1058                                         "you must also have Citadel %d.%02d or"
1059                                         " newer.\n\n\n"),
1060                                                 serv_info.serv_rev_level / 100,
1061                                                 serv_info.serv_rev_level % 100,
1062                                                 MINIMUM_CIT_VERSION / 100,
1063                                                 MINIMUM_CIT_VERSION % 100
1064                                         );
1065                                 end_webcit_session();
1066                                 goto SKIP_ALL_THIS_CRAP;
1067                         }
1068                 }
1069         }
1070
1071         /*
1072          * Functions which can be performed without logging in
1073          */
1074         if (!strcasecmp(action, "listsub")) {
1075                 do_listsub();
1076                 goto SKIP_ALL_THIS_CRAP;
1077         }
1078 #ifdef WEBCIT_WITH_CALENDAR_SERVICE
1079         if (!strcasecmp(action, "freebusy")) {
1080                 do_freebusy(cmd);
1081                 goto SKIP_ALL_THIS_CRAP;
1082         }
1083 #endif
1084
1085         /*
1086          * If we're not logged in, but we have HTTP Authentication data,
1087          * try logging in to Citadel using that.
1088          */
1089         if ((!WC->logged_in)
1090            && (strlen(c_httpauth_user) > 0)
1091            && (strlen(c_httpauth_pass) > 0)) {
1092                 serv_printf("USER %s", c_httpauth_user);
1093                 serv_getln(buf, sizeof buf);
1094                 if (buf[0] == '3') {
1095                         serv_printf("PASS %s", c_httpauth_pass);
1096                         serv_getln(buf, sizeof buf);
1097                         if (buf[0] == '2') {
1098                                 become_logged_in(c_httpauth_user,
1099                                                 c_httpauth_pass, buf);
1100                                 safestrncpy(WC->httpauth_user, c_httpauth_user, sizeof WC->httpauth_user);
1101                                 safestrncpy(WC->httpauth_pass, c_httpauth_pass, sizeof WC->httpauth_pass);
1102                         } else {
1103                                 /* Should only display when password is wrong */
1104                                 authorization_required(&buf[4]);
1105                                 goto SKIP_ALL_THIS_CRAP;
1106                         }
1107                 }
1108         }
1109
1110         /* This needs to run early */
1111         if (!strcasecmp(action, "rss")) {
1112                 display_rss(bstr("room"), request_method);
1113                 goto SKIP_ALL_THIS_CRAP;
1114         }
1115
1116         /*
1117          * The GroupDAV stuff relies on HTTP authentication instead of
1118          * our session's authentication.
1119          */
1120         if (!strncasecmp(action, "groupdav", 8)) {
1121                 groupdav_main(req, ContentType, /* do GroupDAV methods */
1122                         ContentLength, content+body_start);
1123                 if (!WC->logged_in) {
1124                         WC->killthis = 1;       /* If not logged in, don't */
1125                 }                               /* keep the session active */
1126                 goto SKIP_ALL_THIS_CRAP;
1127         }
1128
1129
1130         /*
1131          * Automatically send requests with any method other than GET or
1132          * POST to the GroupDAV code as well.
1133          */
1134         if ((strcasecmp(request_method, "GET")) && (strcasecmp(request_method, "POST"))) {
1135                 groupdav_main(req, ContentType, /* do GroupDAV methods */
1136                         ContentLength, content+body_start);
1137                 if (!WC->logged_in) {
1138                         WC->killthis = 1;       /* If not logged in, don't */
1139                 }                               /* keep the session active */
1140                 goto SKIP_ALL_THIS_CRAP;
1141         }
1142
1143         /*
1144          * If we're not logged in, but we have username and password cookies
1145          * supplied by the browser, try using them to log in.
1146          */
1147         if ((!WC->logged_in)
1148            && (strlen(c_username) > 0)
1149            && (strlen(c_password) > 0)) {
1150                 serv_printf("USER %s", c_username);
1151                 serv_getln(buf, sizeof buf);
1152                 if (buf[0] == '3') {
1153                         serv_printf("PASS %s", c_password);
1154                         serv_getln(buf, sizeof buf);
1155                         if (buf[0] == '2') {
1156                                 become_logged_in(c_username, c_password, buf);
1157                         }
1158                 }
1159         }
1160         /*
1161          * If we don't have a current room, but a cookie specifying the
1162          * current room is supplied, make an effort to go there.
1163          */
1164         if ((strlen(WC->wc_roomname) == 0) && (strlen(c_roomname) > 0)) {
1165                 serv_printf("GOTO %s", c_roomname);
1166                 serv_getln(buf, sizeof buf);
1167                 if (buf[0] == '2') {
1168                         safestrncpy(WC->wc_roomname, c_roomname, sizeof WC->wc_roomname);
1169                 }
1170         }
1171
1172         /*
1173          * If there are instant messages waiting, retrieve them for display.
1174          */
1175         check_for_instant_messages();
1176
1177         if (!strcasecmp(action, "image")) {
1178                 output_image();
1179
1180         /*
1181          * All functions handled below this point ... make sure we log in
1182          * before doing anything else!
1183          */
1184         } else if ((!WC->logged_in) && (!strcasecmp(action, "login"))) {
1185                 do_login();
1186         } else if (!WC->logged_in) {
1187                 display_login(NULL);
1188         }
1189
1190         /*
1191          * Various commands...
1192          */
1193
1194         else if (!strcasecmp(action, "do_welcome")) {
1195                 do_welcome();
1196         } else if (!strcasecmp(action, "blank")) {
1197                 blank_page();
1198         } else if (!strcasecmp(action, "do_template")) {
1199                 url_do_template();
1200         } else if (!strcasecmp(action, "display_aide_menu")) {
1201                 display_aide_menu();
1202         } else if (!strcasecmp(action, "display_main_menu")) {
1203                 display_main_menu();
1204         } else if (!strcasecmp(action, "who")) {
1205                 who();
1206         } else if (!strcasecmp(action, "who_inner_html")) {
1207                 begin_ajax_response();
1208                 who_inner_div();
1209                 end_ajax_response();
1210         } else if (!strcasecmp(action, "knrooms")) {
1211                 knrooms();
1212         } else if (!strcasecmp(action, "gotonext")) {
1213                 slrp_highest();
1214                 gotonext();
1215         } else if (!strcasecmp(action, "skip")) {
1216                 gotonext();
1217         } else if (!strcasecmp(action, "ungoto")) {
1218                 ungoto();
1219         } else if (!strcasecmp(action, "dotgoto")) {
1220                 if (WC->wc_view != VIEW_MAILBOX) {      /* dotgoto acts like dotskip when we're in a mailbox view */
1221                         slrp_highest();
1222                 }
1223                 smart_goto(bstr("room"));
1224         } else if (!strcasecmp(action, "dotskip")) {
1225                 smart_goto(bstr("room"));
1226         } else if (!strcasecmp(action, "termquit")) {
1227                 do_logout();
1228         } else if (!strcasecmp(action, "readnew")) {
1229                 readloop("readnew");
1230         } else if (!strcasecmp(action, "readold")) {
1231                 readloop("readold");
1232         } else if (!strcasecmp(action, "readfwd")) {
1233                 readloop("readfwd");
1234         } else if (!strcasecmp(action, "headers")) {
1235                 readloop("headers");
1236         } else if (!strcasecmp(action, "msg")) {
1237                 embed_message(arg1);
1238         } else if (!strcasecmp(action, "printmsg")) {
1239                 print_message(arg1);
1240         } else if (!strcasecmp(action, "display_enter")) {
1241                 display_enter();
1242         } else if (!strcasecmp(action, "post")) {
1243                 post_message();
1244         } else if (!strcasecmp(action, "move_msg")) {
1245                 move_msg();
1246         } else if (!strcasecmp(action, "delete_msg")) {
1247                 delete_msg();
1248         } else if (!strcasecmp(action, "userlist")) {
1249                 userlist();
1250         } else if (!strcasecmp(action, "showuser")) {
1251                 showuser();
1252         } else if (!strcasecmp(action, "display_page")) {
1253                 display_page();
1254         } else if (!strcasecmp(action, "page_user")) {
1255                 page_user();
1256         } else if (!strcasecmp(action, "chat")) {
1257                 do_chat();
1258         } else if (!strcasecmp(action, "display_private")) {
1259                 display_private("", 0);
1260         } else if (!strcasecmp(action, "goto_private")) {
1261                 goto_private();
1262         } else if (!strcasecmp(action, "zapped_list")) {
1263                 zapped_list();
1264         } else if (!strcasecmp(action, "display_zap")) {
1265                 display_zap();
1266         } else if (!strcasecmp(action, "zap")) {
1267                 zap();
1268         } else if (!strcasecmp(action, "display_entroom")) {
1269                 display_entroom();
1270         } else if (!strcasecmp(action, "entroom")) {
1271                 entroom();
1272         } else if (!strcasecmp(action, "display_whok")) {
1273                 display_whok();
1274         } else if (!strcasecmp(action, "do_invt_kick")) {
1275                 do_invt_kick();
1276         } else if (!strcasecmp(action, "display_editroom")) {
1277                 display_editroom();
1278         } else if (!strcasecmp(action, "netedit")) {
1279                 netedit();
1280         } else if (!strcasecmp(action, "editroom")) {
1281                 editroom();
1282         } else if (!strcasecmp(action, "display_editinfo")) {
1283                 display_edit(_("Room info"), "EINF 0", "RINF", "/editinfo", 1);
1284         } else if (!strcasecmp(action, "editinfo")) {
1285                 save_edit(_("Room info"), "EINF 1", 1);
1286         } else if (!strcasecmp(action, "display_editbio")) {
1287                 sprintf(buf, "RBIO %s", WC->wc_username);
1288                 display_edit(_("Your bio"), "NOOP", buf, "editbio", 3);
1289         } else if (!strcasecmp(action, "editbio")) {
1290                 save_edit(_("Your bio"), "EBIO", 0);
1291         } else if (!strcasecmp(action, "confirm_move_msg")) {
1292                 confirm_move_msg();
1293         } else if (!strcasecmp(action, "delete_room")) {
1294                 delete_room();
1295         } else if (!strcasecmp(action, "validate")) {
1296                 validate();
1297         } else if (!strcasecmp(action, "display_editpic")) {
1298                 display_graphics_upload(_("your photo"),
1299                                         "UIMG 0|_userpic_",
1300                                         "/editpic");
1301         } else if (!strcasecmp(action, "editpic")) {
1302                 do_graphics_upload("UIMG 1|_userpic_");
1303         } else if (!strcasecmp(action, "display_editroompic")) {
1304                 display_graphics_upload(_("the icon for this room"),
1305                                         "UIMG 0|_roompic_",
1306                                         "/editroompic");
1307         } else if (!strcasecmp(action, "editroompic")) {
1308                 do_graphics_upload("UIMG 1|_roompic_");
1309         } else if (!strcasecmp(action, "delete_floor")) {
1310                 delete_floor();
1311         } else if (!strcasecmp(action, "rename_floor")) {
1312                 rename_floor();
1313         } else if (!strcasecmp(action, "create_floor")) {
1314                 create_floor();
1315         } else if (!strcasecmp(action, "display_editfloorpic")) {
1316                 sprintf(buf, "UIMG 0|_floorpic_|%s",
1317                         bstr("which_floor"));
1318                 display_graphics_upload(_("the icon for this floor"),
1319                                         buf,
1320                                         "/editfloorpic");
1321         } else if (!strcasecmp(action, "editfloorpic")) {
1322                 sprintf(buf, "UIMG 1|_floorpic_|%s",
1323                         bstr("which_floor"));
1324                 do_graphics_upload(buf);
1325         } else if (!strcasecmp(action, "display_reg")) {
1326                 display_reg(0);
1327         } else if (!strcasecmp(action, "display_changepw")) {
1328                 display_changepw();
1329         } else if (!strcasecmp(action, "changepw")) {
1330                 changepw();
1331         } else if (!strcasecmp(action, "display_edit_node")) {
1332                 display_edit_node();
1333         } else if (!strcasecmp(action, "edit_node")) {
1334                 edit_node();
1335         } else if (!strcasecmp(action, "display_netconf")) {
1336                 display_netconf();
1337         } else if (!strcasecmp(action, "display_confirm_delete_node")) {
1338                 display_confirm_delete_node();
1339         } else if (!strcasecmp(action, "delete_node")) {
1340                 delete_node();
1341         } else if (!strcasecmp(action, "display_add_node")) {
1342                 display_add_node();
1343         } else if (!strcasecmp(action, "add_node")) {
1344                 add_node();
1345         } else if (!strcasecmp(action, "terminate_session")) {
1346                 slrp_highest();
1347                 terminate_session();
1348         } else if (!strcasecmp(action, "edit_me")) {
1349                 edit_me();
1350         } else if (!strcasecmp(action, "display_siteconfig")) {
1351                 display_siteconfig();
1352         } else if (!strcasecmp(action, "chat_recv")) {
1353                 chat_recv();
1354         } else if (!strcasecmp(action, "chat_send")) {
1355                 chat_send();
1356         } else if (!strcasecmp(action, "siteconfig")) {
1357                 siteconfig();
1358         } else if (!strcasecmp(action, "display_generic")) {
1359                 display_generic();
1360         } else if (!strcasecmp(action, "do_generic")) {
1361                 do_generic();
1362         } else if (!strcasecmp(action, "display_menubar")) {
1363                 display_menubar(1);
1364         } else if (!strcasecmp(action, "mimepart")) {
1365                 mimepart(arg1, arg2);
1366         } else if (!strcasecmp(action, "edit_vcard")) {
1367                 edit_vcard();
1368         } else if (!strcasecmp(action, "submit_vcard")) {
1369                 submit_vcard();
1370         } else if (!strcasecmp(action, "select_user_to_edit")) {
1371                 select_user_to_edit(NULL, NULL);
1372         } else if (!strcasecmp(action, "display_edituser")) {
1373                 display_edituser(NULL, 0);
1374         } else if (!strcasecmp(action, "edituser")) {
1375                 edituser();
1376         } else if (!strcasecmp(action, "create_user")) {
1377                 create_user();
1378         } else if (!strcasecmp(action, "changeview")) {
1379                 change_view();
1380         } else if (!strcasecmp(action, "do_stuff_to_msgs")) {
1381                 do_stuff_to_msgs();
1382         } else if (!strcasecmp(action, "change_start_page")) {
1383                 change_start_page();
1384         } else if (!strcasecmp(action, "display_floorconfig")) {
1385                 display_floorconfig(NULL);
1386         } else if (!strcasecmp(action, "toggle_self_service")) {
1387                 toggle_self_service();
1388 #ifdef WEBCIT_WITH_CALENDAR_SERVICE
1389         } else if (!strcasecmp(action, "display_edit_task")) {
1390                 display_edit_task();
1391         } else if (!strcasecmp(action, "save_task")) {
1392                 save_task();
1393         } else if (!strcasecmp(action, "display_edit_event")) {
1394                 display_edit_event();
1395         } else if (!strcasecmp(action, "save_event")) {
1396                 save_event();
1397         } else if (!strcasecmp(action, "respond_to_request")) {
1398                 respond_to_request();
1399         } else if (!strcasecmp(action, "handle_rsvp")) {
1400                 handle_rsvp();
1401 #endif
1402         } else if (!strcasecmp(action, "summary")) {
1403                 summary();
1404         } else if (!strcasecmp(action, "summary_inner_div")) {
1405                 begin_ajax_response();
1406                 summary_inner_div();
1407                 end_ajax_response();
1408         } else if (!strcasecmp(action, "iconbar")) {
1409                 do_iconbar();
1410         } else if (!strcasecmp(action, "display_customize_iconbar")) {
1411                 display_customize_iconbar();
1412         } else if (!strcasecmp(action, "commit_iconbar")) {
1413                 commit_iconbar();
1414         } else if (!strcasecmp(action, "set_room_policy")) {
1415                 set_room_policy();
1416         } else if (!strcasecmp(action, "display_inetconf")) {
1417                 display_inetconf();
1418         } else if (!strcasecmp(action, "save_inetconf")) {
1419                 save_inetconf();
1420         } else if (!strcasecmp(action, "setup_wizard")) {
1421                 do_setup_wizard();
1422         } else if (!strcasecmp(action, "display_preferences")) {
1423                 display_preferences();
1424         } else if (!strcasecmp(action, "set_preferences")) {
1425                 set_preferences();
1426         } else if (!strcasecmp(action, "recp_autocomplete")) {
1427                 recp_autocomplete(bstr("recp"));
1428         } else if (!strcasecmp(action, "cc_autocomplete")) {
1429                 recp_autocomplete(bstr("cc"));
1430         } else if (!strcasecmp(action, "bcc_autocomplete")) {
1431                 recp_autocomplete(bstr("bcc"));
1432         } else if (!strcasecmp(action, "diagnostics")) {
1433                 output_headers(1, 1, 1, 0, 0, 0);
1434                 wprintf("Session: %d<hr />\n", WC->wc_session);
1435                 wprintf("Command: <br /><PRE>\n");
1436                 escputs(cmd);
1437                 wprintf("</PRE><hr />\n");
1438                 wprintf("Variables: <br /><PRE>\n");
1439                 dump_vars();
1440                 wprintf("</PRE><hr />\n");
1441                 wDumpContent(1);
1442         }
1443
1444         /* When all else fais, display the main menu. */
1445         else {
1446                 display_main_menu();
1447         }
1448
1449 SKIP_ALL_THIS_CRAP:
1450         fflush(stdout);
1451         if (content != NULL) {
1452                 free(content);
1453                 content = NULL;
1454         }
1455         free_urls();
1456         if (WC->upload_length > 0) {
1457                 free(WC->upload);
1458                 WC->upload_length = 0;
1459         }
1460
1461 }