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] == '\'')
 308                         strcat(target, "\\'");
 309                 else if (strbuf[a] == '\n')
 310                         strcat(target, " ");
 311                 else if (strbuf[a] == '\r')
 312                         strcat(target, " ");
 313                 else if (strbuf[a] == '\'')
 314                         strcat(target, "&#39;");
 315                 else {
 316                         strncat(target, &strbuf[a], 1);
 317                 }
 318         }
 319 }
 320
 321 void msgescputs(char *strbuf) {
 322         char *outbuf;
 323
 324         if (strbuf == NULL) return;
 325         outbuf = malloc( (3 * strlen(strbuf)) + SIZ);
 326         msgesc(outbuf, strbuf);
 327         wprintf("%s", outbuf);
 328         free(outbuf);
 329 }
 330
 331
 332
 333
 334 /*
 335  * Output all that important stuff that the browser will want to see
 336  */
 337 void output_headers(    int do_httpheaders,     /* 1 = output HTTP headers                          */
 338                         int do_htmlhead,        /* 1 = output HTML <head> section and <body> opener */
 339
 340                         int do_room_banner,     /* 0=no, 1=yes,                                     */
 341                                                 /* 2 = I'm going to embed my own, so don't open the */
 342                                                 /*     <div id="content"> either.                   */
 343
 344                         int unset_cookies,      /* 1 = session is terminating, so unset the cookies */
 345                         int suppress_check,     /* 1 = suppress check for instant messages          */
 346                         int cache               /* 1 = allow browser to cache this page             */
 347 ) {
 348         char cookie[SIZ];
 349         char httpnow[SIZ];
 350
 351         wprintf("HTTP/1.1 200 OK\n");
 352         httpdate(httpnow, time(NULL));
 353
 354         if (do_httpheaders) {
 355                 wprintf("Content-type: text/html; charset=utf-8\r\n"
 356                         "Server: %s / %s\n"
 357                         "Connection: close\r\n",
 358                         SERVER, serv_info.serv_software
 359                 );
 360         }
 361
 362         if (cache) {
 363                 wprintf("Pragma: public\r\n"
 364                         "Cache-Control: max-age=3600, must-revalidate\r\n"
 365                         "Last-modified: %s\r\n",
 366                         httpnow
 367                 );
 368         }
 369         else {
 370                 wprintf("Pragma: no-cache\r\n"
 371                         "Cache-Control: no-store\r\n"
 372                 );
 373         }
 374
 375         stuff_to_cookie(cookie, WC->wc_session, WC->wc_username,
 376                         WC->wc_password, WC->wc_roomname);
 377
 378         if (unset_cookies) {
 379                 wprintf("Set-cookie: webcit=%s; path=/\r\n", unset);
 380         } else {
 381                 wprintf("Set-cookie: webcit=%s; path=/\r\n", cookie);
 382                 if (server_cookie != NULL) {
 383                         wprintf("%s\n", server_cookie);
 384                 }
 385         }
 386
 387         if (do_htmlhead) {
 388                 /* wprintf("\n"); */
 389                 begin_burst();
 390                 do_template("head");
 391         }
 392
 393         /* ICONBAR */
 394         if (do_htmlhead) {
 395
 396                 if (WC->HaveInstantMessages) {
 397                         wprintf("<div id=\"page_popup\">\n");
 398                         page_popup();
 399                         wprintf("</div>\n");
 400                 }
 401                 if (strlen(WC->ImportantMessage) > 0) {
 402                         wprintf("<div id=\"important_message\">\n");
 403                         wprintf("<SPAN CLASS=\"imsg\">"
 404                                 "%s</SPAN><br />\n", WC->ImportantMessage);
 405                         wprintf("</div>\n");
 406                         wprintf("<script type=\"text/javascript\">\n"
 407                                 "        setTimeout('hide_imsg_popup()', 3000); \n"
 408                                 "</script>\n");
 409                         safestrncpy(WC->ImportantMessage, "", sizeof WC->ImportantMessage);
 410                 }
 411                 if ( (WC->logged_in) && (!unset_cookies) ) {
 412                         wprintf("<div id=\"iconbar\">");
 413                         do_iconbar();
 414                         wprintf("</div>\n");
 415                 }
 416                 if (do_room_banner == 1) {
 417                         wprintf("<div id=\"banner\">\n");
 418                         embed_room_banner(NULL, navbar_default);
 419                         wprintf("</div>\n");
 420                 }
 421         }
 422
 423         if (do_room_banner == 1) {
 424                 wprintf("<div id=\"content\">\n");
 425         }
 426 }
 427
 428
 429 /*
 430  * Generic function to do an HTTP redirect.  Easy and fun.
 431  */
 432 void http_redirect(char *whichpage) {
 433         wprintf("HTTP/1.1 302 Moved Temporarily\n");
 434         wprintf("Location: %s\r\n", whichpage);
 435         wprintf("URI: %s\r\n", whichpage);
 436         wprintf("Content-type: text/html; charset=utf-8\r\n\r\n");
 437         wprintf("<html><body>");
 438         wprintf("Go <A HREF=\"%s\">here</A>.", whichpage);
 439         wprintf("</body></html>\n");
 440 }
 441
 442
 443
 444 void check_for_instant_messages()
 445 {
 446         char buf[SIZ];
 447
 448         serv_puts("NOOP");
 449         serv_getln(buf, sizeof buf);
 450         if (buf[3] == '*') WC->HaveInstantMessages = 1;
 451 }
 452
 453
 454
 455
 456 /*
 457  * Output a piece of content to the web browser
 458  */
 459 void http_transmit_thing(char *thing, size_t length, char *content_type,
 460                          int is_static) {
 461
 462         output_headers(0, 0, 0, 0, 0, is_static);
 463
 464         wprintf("Content-type: %s\r\n"
 465                 "Server: %s\r\n"
 466                 "Connection: close\r\n",
 467                 content_type,
 468                 SERVER);
 469
 470 #ifdef HAVE_ZLIB
 471         /* If we can send the data out compressed, please do so. */
 472         if (WC->gzip_ok) {
 473                 char *compressed_data = NULL;
 474                 uLongf compressed_len;
 475
 476                 compressed_len = (uLongf) ((length * 101) / 100) + 100;
 477                 compressed_data = malloc(compressed_len);
 478
 479                 if (compress_gzip((Bytef *) compressed_data,
 480                                   &compressed_len,
 481                                   (Bytef *) thing,
 482                                   (uLongf) length, Z_BEST_SPEED) == Z_OK) {
 483                         wprintf("Content-encoding: gzip\r\n"
 484                                 "Content-length: %ld\r\n"
 485                                 "\r\n",
 486                                 (long) compressed_len
 487                         );
 488                         client_write(compressed_data, (size_t)compressed_len);
 489                         free(compressed_data);
 490                         return;
 491                 }
 492         }
 493 #endif
 494
 495         /* No compression ... just send it out as-is */
 496         wprintf("Content-length: %ld\r\n"
 497                 "\r\n",
 498                 (long) length
 499         );
 500         client_write(thing, (size_t)length);
 501 }
 502
 503
 504
 505
 506 void output_static(char *what)
 507 {
 508         FILE *fp;
 509         struct stat statbuf;
 510         off_t bytes;
 511         char *bigbuffer;
 512         char content_type[128];
 513
 514         fp = fopen(what, "rb");
 515         if (fp == NULL) {
 516                 lprintf(9, "output_static('%s')  -- NOT FOUND --\n", what);
 517                 wprintf("HTTP/1.1 404 %s\n", strerror(errno));
 518                 wprintf("Content-Type: text/plain\r\n");
 519                 wprintf("\r\n");
 520                 wprintf("Cannot open %s: %s\n", what, strerror(errno));
 521         } else {
 522                 if (!strncasecmp(&what[strlen(what) - 4], ".gif", 4))
 523                         safestrncpy(content_type, "image/gif", sizeof content_type);
 524                 else if (!strncasecmp(&what[strlen(what) - 4], ".txt", 4))
 525                         safestrncpy(content_type, "text/plain", sizeof content_type);
 526                 else if (!strncasecmp(&what[strlen(what) - 4], ".css", 4))
 527                         safestrncpy(content_type, "text/css", sizeof content_type);
 528                 else if (!strncasecmp(&what[strlen(what) - 4], ".jpg", 4))
 529                         safestrncpy(content_type, "image/jpeg", sizeof content_type);
 530                 else if (!strncasecmp(&what[strlen(what) - 4], ".png", 4))
 531                         safestrncpy(content_type, "image/png", sizeof content_type);
 532                 else if (!strncasecmp(&what[strlen(what) - 4], ".ico", 4))
 533                         safestrncpy(content_type, "image/x-icon", sizeof content_type);
 534                 else if (!strncasecmp(&what[strlen(what) - 5], ".html", 5))
 535                         safestrncpy(content_type, "text/html", sizeof content_type);
 536                 else if (!strncasecmp(&what[strlen(what) - 4], ".htm", 4))
 537                         safestrncpy(content_type, "text/html", sizeof content_type);
 538                 else if (!strncasecmp(&what[strlen(what) - 4], ".wml", 4))
 539                         safestrncpy(content_type, "text/vnd.wap.wml", sizeof content_type);
 540                 else if (!strncasecmp(&what[strlen(what) - 5], ".wmls", 5))
 541                         safestrncpy(content_type, "text/vnd.wap.wmlscript", sizeof content_type);
 542                 else if (!strncasecmp(&what[strlen(what) - 5], ".wmlc", 5))
 543                         safestrncpy(content_type, "application/vnd.wap.wmlc", sizeof content_type);
 544                 else if (!strncasecmp(&what[strlen(what) - 6], ".wmlsc", 6))
 545                         safestrncpy(content_type, "application/vnd.wap.wmlscriptc", sizeof content_type);
 546                 else if (!strncasecmp(&what[strlen(what) - 5], ".wbmp", 5))
 547                         safestrncpy(content_type, "image/vnd.wap.wbmp", sizeof content_type);
 548                 else if (!strncasecmp(&what[strlen(what) - 3], ".js", 3))
 549                         safestrncpy(content_type, "text/javascript", sizeof content_type);
 550                 else
 551                         safestrncpy(content_type, "application/octet-stream", sizeof content_type);
 552
 553                 fstat(fileno(fp), &statbuf);
 554                 bytes = statbuf.st_size;
 555                 bigbuffer = malloc(bytes + 2);
 556                 fread(bigbuffer, bytes, 1, fp);
 557                 fclose(fp);
 558
 559                 lprintf(9, "output_static('%s')  %s\n", what, content_type);
 560                 http_transmit_thing(bigbuffer, (size_t)bytes, content_type, 1);
 561                 free(bigbuffer);
 562         }
 563         if (!strcasecmp(bstr("force_close_session"), "yes")) {
 564                 end_webcit_session();
 565         }
 566 }
 567
 568
 569 /*
 570  * When the browser requests an image file from the Citadel server,
 571  * this function is called to transmit it.
 572  */
 573 void output_image()
 574 {
 575         char buf[SIZ];
 576         char *xferbuf = NULL;
 577         off_t bytes;
 578
 579         serv_printf("OIMG %s|%s", bstr("name"), bstr("parm"));
 580         serv_getln(buf, sizeof buf);
 581         if (buf[0] == '2') {
 582                 bytes = extract_long(&buf[4], 0);
 583                 xferbuf = malloc(bytes + 2);
 584
 585                 /* Read it from the server */
 586                 read_server_binary(xferbuf, bytes);
 587                 serv_puts("CLOS");
 588                 serv_getln(buf, sizeof buf);
 589
 590                 /* Write it to the browser */
 591                 http_transmit_thing(xferbuf, (size_t)bytes, "image/gif", 0);
 592                 free(xferbuf);
 593
 594         } else {
 595                 /* Instead of an ugly 404, send a 1x1 transparent GIF
 596                  * when there's no such image on the server.
 597                  */
 598                 output_static("static/blank.gif");
 599         }
 600
 601
 602
 603 }
 604
 605 /*
 606  * Generic function to output an arbitrary MIME part from an arbitrary
 607  * message number on the server.
 608  */
 609 void mimepart(char *msgnum, char *partnum)
 610 {
 611         char buf[SIZ];
 612         off_t bytes;
 613         char content_type[SIZ];
 614         char *content = NULL;
 615
 616         serv_printf("OPNA %s|%s", msgnum, partnum);
 617         serv_getln(buf, sizeof buf);
 618         if (buf[0] == '2') {
 619                 bytes = extract_long(&buf[4], 0);
 620                 content = malloc(bytes + 2);
 621                 extract_token(content_type, &buf[4], 3, '|', sizeof content_type);
 622                 output_headers(0, 0, 0, 0, 0, 0);
 623                 read_server_binary(content, bytes);
 624                 serv_puts("CLOS");
 625                 serv_getln(buf, sizeof buf);
 626                 http_transmit_thing(content, bytes, content_type, 0);
 627                 free(content);
 628         } else {
 629                 wprintf("HTTP/1.1 404 %s\n", &buf[4]);
 630                 output_headers(0, 0, 0, 0, 0, 0);
 631                 wprintf("Content-Type: text/plain\r\n");
 632                 wprintf("\r\n");
 633                 wprintf(_("An error occurred while retrieving this part: %s\n"), &buf[4]);
 634         }
 635
 636 }
 637
 638
 639 /*
 640  * Read any MIME part of a message, from the server, into memory.
 641  */
 642 char *load_mimepart(long msgnum, char *partnum)
 643 {
 644         char buf[SIZ];
 645         off_t bytes;
 646         char content_type[SIZ];
 647         char *content;
 648
 649         serv_printf("OPNA %ld|%s", msgnum, partnum);
 650         serv_getln(buf, sizeof buf);
 651         if (buf[0] == '2') {
 652                 bytes = extract_long(&buf[4], 0);
 653                 extract_token(content_type, &buf[4], 3, '|', sizeof content_type);
 654
 655                 content = malloc(bytes + 2);
 656                 read_server_binary(content, bytes);
 657
 658                 serv_puts("CLOS");
 659                 serv_getln(buf, sizeof buf);
 660                 content[bytes] = 0;     /* null terminate for good measure */
 661                 return(content);
 662         }
 663         else {
 664                 return(NULL);
 665         }
 666
 667 }
 668
 669
 670 /*
 671  * Convenience functions to display a page containing only a string
 672  */
 673 void convenience_page(char *titlebarcolor, char *titlebarmsg, char *messagetext)
 674 {
 675         wprintf("HTTP/1.1 200 OK\n");
 676         output_headers(1, 1, 2, 0, 0, 0);
 677         wprintf("<div id=\"banner\">\n");
 678         wprintf("<TABLE WIDTH=100%% BORDER=0 BGCOLOR=\"#%s\"><TR><TD>", titlebarcolor);
 679         wprintf("<SPAN CLASS=\"titlebar\">%s</SPAN>\n", titlebarmsg);
 680         wprintf("</TD></TR></TABLE>\n");
 681         wprintf("</div>\n<div id=\"content\">\n");
 682         escputs(messagetext);
 683
 684         wprintf("<hr />\n");
 685         wDumpContent(1);
 686 }
 687
 688
 689 /*
 690  * Display a blank page.
 691  */
 692 void blank_page(void) {
 693         output_headers(1, 1, 0, 0, 0, 0);
 694         wDumpContent(2);
 695 }
 696
 697
 698 /*
 699  * A template has been requested
 700  */
 701 void url_do_template(void) {
 702         do_template(bstr("template"));
 703 }
 704
 705
 706
 707 /*
 708  * Offer to make any page the user's "start page."
 709  */
 710 void offer_start_page(void) {
 711         wprintf("<A HREF=\"/change_start_page?startpage=");
 712         urlescputs(WC->this_page);
 713         wprintf("\"><FONT SIZE=-2 COLOR=\"#AAAAAA\">");
 714         wprintf(_("Make this my start page"));
 715         wprintf("</FONT></A>");
 716 /*
 717         wprintf("<br/><a href=\"/rss?room=");
 718         urlescputs(WC->wc_roomname);
 719         wprintf("\" title=\"RSS 2.0 feed for ");
 720         escputs(WC->wc_roomname);
 721         wprintf("\"><img alt=\"RSS\" border=\"0\" src=\"/static/xml_button.gif\"/></a>\n");
 722 */
 723 }
 724
 725
 726 /*
 727  * Change the user's start page
 728  */
 729 void change_start_page(void) {
 730
 731         if (bstr("startpage") == NULL) {
 732                 safestrncpy(WC->ImportantMessage,
 733                         _("You no longer have a start page selected."),
 734                         sizeof WC->ImportantMessage);
 735                 display_main_menu();
 736                 return;
 737         }
 738
 739         set_preference("startpage", bstr("startpage"), 1);
 740
 741         output_headers(1, 1, 0, 0, 0, 0);
 742         do_template("newstartpage");
 743         wDumpContent(1);
 744 }
 745
 746
 747
 748
 749 void display_success(char *successmessage)
 750 {
 751         convenience_page("007700", "OK", successmessage);
 752 }
 753
 754
 755 /* Authorization required page */
 756 /* This is probably temporary and should be revisited */
 757 void authorization_required(const char *message)
 758 {
 759         wprintf("HTTP/1.1 401 Authorization Required\r\n");
 760         wprintf("WWW-Authenticate: Basic realm=\"\"\r\n", serv_info.serv_humannode);
 761         wprintf("Content-Type: text/html\r\n\r\n");
 762         wprintf("<h1>");
 763         wprintf(_("Authorization Required"));
 764         wprintf("</h1>\r\n");
 765         wprintf(_("The resource you requested requires a valid username and password. "
 766                 "You could not be logged in: %s\n"), message);
 767         wDumpContent(0);
 768 }
 769
 770
 771 void upload_handler(char *name, char *filename, char *partnum, char *disp,
 772                         void *content, char *cbtype, char *cbcharset,
 773                         size_t length, char *encoding, void *userdata)
 774 {
 775         struct urlcontent *u;
 776
 777         /* lprintf(9, "upload_handler() name=%s, type=%s, len=%d\n",
 778                 name, cbtype, length); */
 779
 780         /* Form fields */
 781         if ( (length > 0) && (strlen(cbtype) == 0) ) {
 782                 u = (struct urlcontent *) malloc(sizeof(struct urlcontent));
 783                 u->next = WC->urlstrings;
 784                 WC->urlstrings = u;
 785                 safestrncpy(u->url_key, name, sizeof(u->url_key));
 786                 u->url_data = malloc(length + 1);
 787                 memcpy(u->url_data, content, length);
 788                 u->url_data[length] = 0;
 789         }
 790
 791         /* Uploaded files */
 792         if ( (length > 0) && (strlen(cbtype) > 0) ) {
 793                 WC->upload = malloc(length);
 794                 if (WC->upload != NULL) {
 795                         WC->upload_length = length;
 796                         safestrncpy(WC->upload_filename, filename,
 797                                         sizeof(WC->upload_filename));
 798                         safestrncpy(WC->upload_content_type, cbtype,
 799                                         sizeof(WC->upload_content_type));
 800                         memcpy(WC->upload, content, length);
 801                 }
 802                 else {
 803                         lprintf(3, "malloc() failed: %s\n", strerror(errno));
 804                 }
 805         }
 806
 807 }
 808
 809 /*
 810  * Convenience functions to wrap around asynchronous ajax responses
 811  */
 812 void begin_ajax_response(void) {
 813         output_headers(0, 0, 0, 0, 0, 0);
 814
 815         wprintf("Content-type: text/html; charset=UTF-8\r\n"
 816                 "Server: %s\r\n"
 817                 "Connection: close\r\n"
 818                 "Pragma: no-cache\r\n"
 819                 "Cache-Control: no-cache\r\n",
 820                 SERVER);
 821         begin_burst();
 822 }
 823
 824 void end_ajax_response(void) {
 825         wprintf("\r\n");
 826         wDumpContent(0);
 827 }
 828
 829
 830
 831 /*
 832  * Entry point for WebCit transaction
 833  */
 834 void session_loop(struct httprequest *req)
 835 {
 836         char cmd[1024];
 837         char action[128];
 838         char arg1[128];
 839         char arg2[128];
 840         char arg3[128];
 841         char arg4[128];
 842         char arg5[128];
 843         char arg6[128];
 844         char arg7[128];
 845         char buf[SIZ];
 846         char request_method[128];
 847         char pathname[512];
 848         int a, b;
 849         int ContentLength = 0;
 850         int BytesRead = 0;
 851         char ContentType[512];
 852         char *content = NULL;
 853         char *content_end = NULL;
 854         struct httprequest *hptr;
 855         char browser_host[SIZ];
 856         char user_agent[SIZ];
 857         int body_start = 0;
 858         int is_static = 0;
 859
 860         /* We stuff these with the values coming from the client cookies,
 861          * so we can use them to reconnect a timed out session if we have to.
 862          */
 863         char c_username[SIZ];
 864         char c_password[SIZ];
 865         char c_roomname[SIZ];
 866         char c_httpauth_string[SIZ];
 867         char c_httpauth_user[SIZ];
 868         char c_httpauth_pass[SIZ];
 869         char cookie[SIZ];
 870
 871         safestrncpy(c_username, "", sizeof c_username);
 872         safestrncpy(c_password, "", sizeof c_password);
 873         safestrncpy(c_roomname, "", sizeof c_roomname);
 874         safestrncpy(c_httpauth_string, "", sizeof c_httpauth_string);
 875         safestrncpy(c_httpauth_user, DEFAULT_HTTPAUTH_USER, sizeof c_httpauth_user);
 876         safestrncpy(c_httpauth_pass, DEFAULT_HTTPAUTH_PASS, sizeof c_httpauth_pass);
 877
 878         WC->upload_length = 0;
 879         WC->upload = NULL;
 880         WC->vars = NULL;
 881
 882         WC->is_wap = 0;
 883
 884         hptr = req;
 885         if (hptr == NULL) return;
 886
 887         safestrncpy(cmd, hptr->line, sizeof cmd);
 888         hptr = hptr->next;
 889         extract_token(request_method, cmd, 0, ' ', sizeof request_method);
 890         extract_token(pathname, cmd, 1, ' ', sizeof request_method);
 891
 892         /* Figure out the action */
 893         extract_token(action, pathname, 1, '/', sizeof action);
 894         if (strstr(action, "?")) *strstr(action, "?") = 0;
 895         if (strstr(action, "&")) *strstr(action, "&") = 0;
 896         if (strstr(action, " ")) *strstr(action, " ") = 0;
 897
 898         extract_token(arg1, pathname, 2, '/', sizeof arg1);
 899         if (strstr(arg1, "?")) *strstr(arg1, "?") = 0;
 900         if (strstr(arg1, "&")) *strstr(arg1, "&") = 0;
 901         if (strstr(arg1, " ")) *strstr(arg1, " ") = 0;
 902
 903         extract_token(arg2, pathname, 3, '/', sizeof arg2);
 904         if (strstr(arg2, "?")) *strstr(arg2, "?") = 0;
 905         if (strstr(arg2, "&")) *strstr(arg2, "&") = 0;
 906         if (strstr(arg2, " ")) *strstr(arg2, " ") = 0;
 907
 908         extract_token(arg3, pathname, 4, '/', sizeof arg3);
 909         if (strstr(arg3, "?")) *strstr(arg3, "?") = 0;
 910         if (strstr(arg3, "&")) *strstr(arg3, "&") = 0;
 911         if (strstr(arg3, " ")) *strstr(arg3, " ") = 0;
 912
 913         extract_token(arg4, pathname, 5, '/', sizeof arg4);
 914         if (strstr(arg4, "?")) *strstr(arg4, "?") = 0;
 915         if (strstr(arg4, "&")) *strstr(arg4, "&") = 0;
 916         if (strstr(arg4, " ")) *strstr(arg4, " ") = 0;
 917
 918         extract_token(arg5, pathname, 6, '/', sizeof arg5);
 919         if (strstr(arg5, "?")) *strstr(arg5, "?") = 0;
 920         if (strstr(arg5, "&")) *strstr(arg5, "&") = 0;
 921         if (strstr(arg5, " ")) *strstr(arg5, " ") = 0;
 922
 923         extract_token(arg6, pathname, 7, '/', sizeof arg6);
 924         if (strstr(arg6, "?")) *strstr(arg6, "?") = 0;
 925         if (strstr(arg6, "&")) *strstr(arg6, "&") = 0;
 926         if (strstr(arg6, " ")) *strstr(arg6, " ") = 0;
 927
 928         extract_token(arg7, pathname, 8, '/', sizeof arg7);
 929         if (strstr(arg7, "?")) *strstr(arg7, "?") = 0;
 930         if (strstr(arg7, "&")) *strstr(arg7, "&") = 0;
 931         if (strstr(arg7, " ")) *strstr(arg7, " ") = 0;
 932
 933         while (hptr != NULL) {
 934                 safestrncpy(buf, hptr->line, sizeof buf);
 935                 hptr = hptr->next;
 936
 937                 if (!strncasecmp(buf, "Cookie: webcit=", 15)) {
 938                         safestrncpy(cookie, &buf[15], sizeof cookie);
 939                         cookie_to_stuff(cookie, NULL,
 940                                         c_username, sizeof c_username,
 941                                         c_password, sizeof c_password,
 942                                         c_roomname, sizeof c_roomname);
 943                 }
 944                 else if (!strncasecmp(buf, "Authorization: Basic ", 21)) {
 945                         CtdlDecodeBase64(c_httpauth_string, &buf[21], strlen(&buf[21]));
 946                         extract_token(c_httpauth_user, c_httpauth_string, 0, ':', sizeof c_httpauth_user);
 947                         extract_token(c_httpauth_pass, c_httpauth_string, 1, ':', sizeof c_httpauth_pass);
 948                 }
 949                 else if (!strncasecmp(buf, "Content-length: ", 16)) {
 950                         ContentLength = atoi(&buf[16]);
 951                 }
 952                 else if (!strncasecmp(buf, "Content-type: ", 14)) {
 953                         safestrncpy(ContentType, &buf[14], sizeof ContentType);
 954                 }
 955                 else if (!strncasecmp(buf, "User-agent: ", 12)) {
 956                         safestrncpy(user_agent, &buf[12], sizeof user_agent);
 957                 }
 958                 else if (!strncasecmp(buf, "Host: ", 6)) {
 959                         safestrncpy(WC->http_host, &buf[6], sizeof WC->http_host);
 960                 }
 961                 /* Only WAP gateways explicitly name this content-type */
 962                 else if (strstr(buf, "text/vnd.wap.wml")) {
 963                         WC->is_wap = 1;
 964                 }
 965         }
 966
 967         if (ContentLength > 0) {
 968                 content = malloc(ContentLength + SIZ);
 969                 memset(content, 0, ContentLength + SIZ);
 970                 sprintf(content, "Content-type: %s\n"
 971                                 "Content-length: %d\n\n",
 972                                 ContentType, ContentLength);
 973                 body_start = strlen(content);
 974
 975                 /* Read the entire input data at once. */
 976                 client_read(WC->http_sock, &content[BytesRead+body_start],
 977                         ContentLength);
 978
 979                 if (!strncasecmp(ContentType,
 980                               "application/x-www-form-urlencoded", 33)) {
 981                         addurls(&content[body_start]);
 982                 } else if (!strncasecmp(ContentType, "multipart", 9)) {
 983                         content_end = content + ContentLength + body_start;
 984                         mime_parser(content, content_end, *upload_handler,
 985                                         NULL, NULL, NULL, 0);
 986                 }
 987         } else {
 988                 content = NULL;
 989         }
 990
 991         /* make a note of where we are in case the user wants to save it */
 992         safestrncpy(WC->this_page, cmd, sizeof(WC->this_page));
 993         remove_token(WC->this_page, 2, ' ');
 994         remove_token(WC->this_page, 0, ' ');
 995
 996         /* If there are variables in the URL, we must grab them now */
 997         for (a = 0; a < strlen(cmd); ++a) {
 998                 if ((cmd[a] == '?') || (cmd[a] == '&')) {
 999                         for (b = a; b < strlen(cmd); ++b)
1000                                 if (isspace(cmd[b]))
1001                                         cmd[b] = 0;
1002                         addurls(&cmd[a + 1]);
1003                         cmd[a] = 0;
1004                 }
1005         }
1006
1007
1008         /* Static content can be sent without connecting to Citadel. */
1009         is_static = 0;
1010         for (a=0; a<(sizeof(static_content_dirs) / sizeof(char *)); ++a) {
1011                 if (!strcasecmp(action, static_content_dirs[a])) {
1012                         is_static = 1;
1013                 }
1014         }
1015         if (is_static) {
1016                 snprintf(buf, sizeof buf, "%s/%s/%s/%s/%s/%s/%s/%s",
1017                         action, arg1, arg2, arg3, arg4, arg5, arg6, arg7);
1018                 for (a=0; a<8; ++a) {
1019                         if (buf[strlen(buf)-1] == '/') {
1020                                 buf[strlen(buf)-1] = 0;
1021                         }
1022                 }
1023                 for (a = 0; a < strlen(buf); ++a) {
1024                         if (isspace(buf[a])) {
1025                                 buf[a] = 0;
1026                         }
1027                 }
1028                 output_static(buf);
1029                 goto SKIP_ALL_THIS_CRAP;        /* Don't try to connect */
1030         }
1031
1032         /*
1033          * If we're not connected to a Citadel server, try to hook up the
1034          * connection now.
1035          */
1036         if (!WC->connected) {
1037                 if (!strcasecmp(ctdlhost, "uds")) {
1038                         /* unix domain socket */
1039                         sprintf(buf, "%s/citadel.socket", ctdlport);
1040                         WC->serv_sock = uds_connectsock(buf);
1041                 }
1042                 else {
1043                         /* tcp socket */
1044                         WC->serv_sock = tcp_connectsock(ctdlhost, ctdlport);
1045                 }
1046
1047                 if (WC->serv_sock < 0) {
1048                         do_logout();
1049                         goto SKIP_ALL_THIS_CRAP;
1050                 }
1051                 else {
1052                         WC->connected = 1;
1053                         serv_getln(buf, sizeof buf);    /* get the server welcome message */
1054                         locate_host(browser_host, WC->http_sock);
1055                         get_serv_info(browser_host, user_agent);
1056                         if (serv_info.serv_rev_level < MINIMUM_CIT_VERSION) {
1057                                 wprintf(_("You are connected to a Citadel "
1058                                         "server running Citadel %d.%02d. \n"
1059                                         "In order to run this version of WebCit "
1060                                         "you must also have Citadel %d.%02d or"
1061                                         " newer.\n\n\n"),
1062                                                 serv_info.serv_rev_level / 100,
1063                                                 serv_info.serv_rev_level % 100,
1064                                                 MINIMUM_CIT_VERSION / 100,
1065                                                 MINIMUM_CIT_VERSION % 100
1066                                         );
1067                                 end_webcit_session();
1068                                 goto SKIP_ALL_THIS_CRAP;
1069                         }
1070                 }
1071         }
1072
1073         /*
1074          * Functions which can be performed without logging in
1075          */
1076         if (!strcasecmp(action, "listsub")) {
1077                 do_listsub();
1078                 goto SKIP_ALL_THIS_CRAP;
1079         }
1080 #ifdef WEBCIT_WITH_CALENDAR_SERVICE
1081         if (!strcasecmp(action, "freebusy")) {
1082                 do_freebusy(cmd);
1083                 goto SKIP_ALL_THIS_CRAP;
1084         }
1085 #endif
1086
1087         /*
1088          * If we're not logged in, but we have HTTP Authentication data,
1089          * try logging in to Citadel using that.
1090          */
1091         if ((!WC->logged_in)
1092            && (strlen(c_httpauth_user) > 0)
1093            && (strlen(c_httpauth_pass) > 0)) {
1094                 serv_printf("USER %s", c_httpauth_user);
1095                 serv_getln(buf, sizeof buf);
1096                 if (buf[0] == '3') {
1097                         serv_printf("PASS %s", c_httpauth_pass);
1098                         serv_getln(buf, sizeof buf);
1099                         if (buf[0] == '2') {
1100                                 become_logged_in(c_httpauth_user,
1101                                                 c_httpauth_pass, buf);
1102                                 safestrncpy(WC->httpauth_user, c_httpauth_user, sizeof WC->httpauth_user);
1103                                 safestrncpy(WC->httpauth_pass, c_httpauth_pass, sizeof WC->httpauth_pass);
1104                         } else {
1105                                 /* Should only display when password is wrong */
1106                                 authorization_required(&buf[4]);
1107                                 goto SKIP_ALL_THIS_CRAP;
1108                         }
1109                 }
1110         }
1111
1112         /* This needs to run early */
1113         if (!strcasecmp(action, "rss")) {
1114                 display_rss(bstr("room"), request_method);
1115                 goto SKIP_ALL_THIS_CRAP;
1116         }
1117
1118         /*
1119          * The GroupDAV stuff relies on HTTP authentication instead of
1120          * our session's authentication.
1121          */
1122         if (!strncasecmp(action, "groupdav", 8)) {
1123                 groupdav_main(req, ContentType, /* do GroupDAV methods */
1124                         ContentLength, content+body_start);
1125                 if (!WC->logged_in) {
1126                         WC->killthis = 1;       /* If not logged in, don't */
1127                 }                               /* keep the session active */
1128                 goto SKIP_ALL_THIS_CRAP;
1129         }
1130
1131
1132         /*
1133          * Automatically send requests with any method other than GET or
1134          * POST to the GroupDAV code as well.
1135          */
1136         if ((strcasecmp(request_method, "GET")) && (strcasecmp(request_method, "POST"))) {
1137                 groupdav_main(req, ContentType, /* do GroupDAV methods */
1138                         ContentLength, content+body_start);
1139                 if (!WC->logged_in) {
1140                         WC->killthis = 1;       /* If not logged in, don't */
1141                 }                               /* keep the session active */
1142                 goto SKIP_ALL_THIS_CRAP;
1143         }
1144
1145         /*
1146          * If we're not logged in, but we have username and password cookies
1147          * supplied by the browser, try using them to log in.
1148          */
1149         if ((!WC->logged_in)
1150            && (strlen(c_username) > 0)
1151            && (strlen(c_password) > 0)) {
1152                 serv_printf("USER %s", c_username);
1153                 serv_getln(buf, sizeof buf);
1154                 if (buf[0] == '3') {
1155                         serv_printf("PASS %s", c_password);
1156                         serv_getln(buf, sizeof buf);
1157                         if (buf[0] == '2') {
1158                                 become_logged_in(c_username, c_password, buf);
1159                         }
1160                 }
1161         }
1162         /*
1163          * If we don't have a current room, but a cookie specifying the
1164          * current room is supplied, make an effort to go there.
1165          */
1166         if ((strlen(WC->wc_roomname) == 0) && (strlen(c_roomname) > 0)) {
1167                 serv_printf("GOTO %s", c_roomname);
1168                 serv_getln(buf, sizeof buf);
1169                 if (buf[0] == '2') {
1170                         safestrncpy(WC->wc_roomname, c_roomname, sizeof WC->wc_roomname);
1171                 }
1172         }
1173
1174         /*
1175          * If there are instant messages waiting, retrieve them for display.
1176          */
1177         check_for_instant_messages();
1178
1179         if (!strcasecmp(action, "image")) {
1180                 output_image();
1181
1182         /*
1183          * All functions handled below this point ... make sure we log in
1184          * before doing anything else!
1185          */
1186         } else if ((!WC->logged_in) && (!strcasecmp(action, "login"))) {
1187                 do_login();
1188         } else if (!WC->logged_in) {
1189                 display_login(NULL);
1190         }
1191
1192         /*
1193          * Various commands...
1194          */
1195
1196         else if (!strcasecmp(action, "do_welcome")) {
1197                 do_welcome();
1198         } else if (!strcasecmp(action, "blank")) {
1199                 blank_page();
1200         } else if (!strcasecmp(action, "do_template")) {
1201                 url_do_template();
1202         } else if (!strcasecmp(action, "display_aide_menu")) {
1203                 display_aide_menu();
1204         } else if (!strcasecmp(action, "display_main_menu")) {
1205                 display_main_menu();
1206         } else if (!strcasecmp(action, "who")) {
1207                 who();
1208         } else if (!strcasecmp(action, "who_inner_html")) {
1209                 begin_ajax_response();
1210                 who_inner_div();
1211                 end_ajax_response();
1212         } else if (!strcasecmp(action, "knrooms")) {
1213                 knrooms();
1214         } else if (!strcasecmp(action, "gotonext")) {
1215                 slrp_highest();
1216                 gotonext();
1217         } else if (!strcasecmp(action, "skip")) {
1218                 gotonext();
1219         } else if (!strcasecmp(action, "ungoto")) {
1220                 ungoto();
1221         } else if (!strcasecmp(action, "dotgoto")) {
1222                 if (WC->wc_view != VIEW_MAILBOX) {      /* dotgoto acts like dotskip when we're in a mailbox view */
1223                         slrp_highest();
1224                 }
1225                 smart_goto(bstr("room"));
1226         } else if (!strcasecmp(action, "dotskip")) {
1227                 smart_goto(bstr("room"));
1228         } else if (!strcasecmp(action, "termquit")) {
1229                 do_logout();
1230         } else if (!strcasecmp(action, "readnew")) {
1231                 readloop("readnew");
1232         } else if (!strcasecmp(action, "readold")) {
1233                 readloop("readold");
1234         } else if (!strcasecmp(action, "readfwd")) {
1235                 readloop("readfwd");
1236         } else if (!strcasecmp(action, "headers")) {
1237                 readloop("headers");
1238         } else if (!strcasecmp(action, "msg")) {
1239                 embed_message();
1240         } else if (!strcasecmp(action, "printmsg")) {
1241                 print_message();
1242         } else if (!strcasecmp(action, "display_enter")) {
1243                 display_enter();
1244         } else if (!strcasecmp(action, "post")) {
1245                 post_message();
1246         } else if (!strcasecmp(action, "move_msg")) {
1247                 move_msg();
1248         } else if (!strcasecmp(action, "delete_msg")) {
1249                 delete_msg();
1250         } else if (!strcasecmp(action, "userlist")) {
1251                 userlist();
1252         } else if (!strcasecmp(action, "showuser")) {
1253                 showuser();
1254         } else if (!strcasecmp(action, "display_page")) {
1255                 display_page();
1256         } else if (!strcasecmp(action, "page_user")) {
1257                 page_user();
1258         } else if (!strcasecmp(action, "chat")) {
1259                 do_chat();
1260         } else if (!strcasecmp(action, "display_private")) {
1261                 display_private("", 0);
1262         } else if (!strcasecmp(action, "goto_private")) {
1263                 goto_private();
1264         } else if (!strcasecmp(action, "zapped_list")) {
1265                 zapped_list();
1266         } else if (!strcasecmp(action, "display_zap")) {
1267                 display_zap();
1268         } else if (!strcasecmp(action, "zap")) {
1269                 zap();
1270         } else if (!strcasecmp(action, "display_entroom")) {
1271                 display_entroom();
1272         } else if (!strcasecmp(action, "entroom")) {
1273                 entroom();
1274         } else if (!strcasecmp(action, "display_whok")) {
1275                 display_whok();
1276         } else if (!strcasecmp(action, "do_invt_kick")) {
1277                 do_invt_kick();
1278         } else if (!strcasecmp(action, "display_editroom")) {
1279                 display_editroom();
1280         } else if (!strcasecmp(action, "netedit")) {
1281                 netedit();
1282         } else if (!strcasecmp(action, "editroom")) {
1283                 editroom();
1284         } else if (!strcasecmp(action, "display_editinfo")) {
1285                 display_edit(_("Room info"), "EINF 0", "RINF", "/editinfo", 1);
1286         } else if (!strcasecmp(action, "editinfo")) {
1287                 save_edit(_("Room info"), "EINF 1", 1);
1288         } else if (!strcasecmp(action, "display_editbio")) {
1289                 sprintf(buf, "RBIO %s", WC->wc_username);
1290                 display_edit(_("Your bio"), "NOOP", buf, "editbio", 3);
1291         } else if (!strcasecmp(action, "editbio")) {
1292                 save_edit(_("Your bio"), "EBIO", 0);
1293         } else if (!strcasecmp(action, "confirm_move_msg")) {
1294                 confirm_move_msg();
1295         } else if (!strcasecmp(action, "delete_room")) {
1296                 delete_room();
1297         } else if (!strcasecmp(action, "validate")) {
1298                 validate();
1299         } else if (!strcasecmp(action, "display_editpic")) {
1300                 display_graphics_upload(_("your photo"),
1301                                         "UIMG 0|_userpic_",
1302                                         "/editpic");
1303         } else if (!strcasecmp(action, "editpic")) {
1304                 do_graphics_upload("UIMG 1|_userpic_");
1305         } else if (!strcasecmp(action, "display_editroompic")) {
1306                 display_graphics_upload(_("the icon for this room"),
1307                                         "UIMG 0|_roompic_",
1308                                         "/editroompic");
1309         } else if (!strcasecmp(action, "editroompic")) {
1310                 do_graphics_upload("UIMG 1|_roompic_");
1311         } else if (!strcasecmp(action, "delete_floor")) {
1312                 delete_floor();
1313         } else if (!strcasecmp(action, "rename_floor")) {
1314                 rename_floor();
1315         } else if (!strcasecmp(action, "create_floor")) {
1316                 create_floor();
1317         } else if (!strcasecmp(action, "display_editfloorpic")) {
1318                 sprintf(buf, "UIMG 0|_floorpic_|%s",
1319                         bstr("which_floor"));
1320                 display_graphics_upload(_("the icon for this floor"),
1321                                         buf,
1322                                         "/editfloorpic");
1323         } else if (!strcasecmp(action, "editfloorpic")) {
1324                 sprintf(buf, "UIMG 1|_floorpic_|%s",
1325                         bstr("which_floor"));
1326                 do_graphics_upload(buf);
1327         } else if (!strcasecmp(action, "display_reg")) {
1328                 display_reg(0);
1329         } else if (!strcasecmp(action, "display_changepw")) {
1330                 display_changepw();
1331         } else if (!strcasecmp(action, "changepw")) {
1332                 changepw();
1333         } else if (!strcasecmp(action, "display_edit_node")) {
1334                 display_edit_node();
1335         } else if (!strcasecmp(action, "edit_node")) {
1336                 edit_node();
1337         } else if (!strcasecmp(action, "display_netconf")) {
1338                 display_netconf();
1339         } else if (!strcasecmp(action, "display_confirm_delete_node")) {
1340                 display_confirm_delete_node();
1341         } else if (!strcasecmp(action, "delete_node")) {
1342                 delete_node();
1343         } else if (!strcasecmp(action, "display_add_node")) {
1344                 display_add_node();
1345         } else if (!strcasecmp(action, "add_node")) {
1346                 add_node();
1347         } else if (!strcasecmp(action, "terminate_session")) {
1348                 slrp_highest();
1349                 terminate_session();
1350         } else if (!strcasecmp(action, "edit_me")) {
1351                 edit_me();
1352         } else if (!strcasecmp(action, "display_siteconfig")) {
1353                 display_siteconfig();
1354         } else if (!strcasecmp(action, "chat_recv")) {
1355                 chat_recv();
1356         } else if (!strcasecmp(action, "chat_send")) {
1357                 chat_send();
1358         } else if (!strcasecmp(action, "siteconfig")) {
1359                 siteconfig();
1360         } else if (!strcasecmp(action, "display_generic")) {
1361                 display_generic();
1362         } else if (!strcasecmp(action, "do_generic")) {
1363                 do_generic();
1364         } else if (!strcasecmp(action, "display_menubar")) {
1365                 display_menubar(1);
1366         } else if (!strcasecmp(action, "mimepart")) {
1367                 mimepart(arg1, arg2);
1368         } else if (!strcasecmp(action, "edit_vcard")) {
1369                 edit_vcard();
1370         } else if (!strcasecmp(action, "submit_vcard")) {
1371                 submit_vcard();
1372         } else if (!strcasecmp(action, "select_user_to_edit")) {
1373                 select_user_to_edit(NULL, NULL);
1374         } else if (!strcasecmp(action, "display_edituser")) {
1375                 display_edituser(NULL, 0);
1376         } else if (!strcasecmp(action, "edituser")) {
1377                 edituser();
1378         } else if (!strcasecmp(action, "create_user")) {
1379                 create_user();
1380         } else if (!strcasecmp(action, "changeview")) {
1381                 change_view();
1382         } else if (!strcasecmp(action, "do_stuff_to_msgs")) {
1383                 do_stuff_to_msgs();
1384         } else if (!strcasecmp(action, "change_start_page")) {
1385                 change_start_page();
1386         } else if (!strcasecmp(action, "display_floorconfig")) {
1387                 display_floorconfig(NULL);
1388         } else if (!strcasecmp(action, "toggle_self_service")) {
1389                 toggle_self_service();
1390 #ifdef WEBCIT_WITH_CALENDAR_SERVICE
1391         } else if (!strcasecmp(action, "display_edit_task")) {
1392                 display_edit_task();
1393         } else if (!strcasecmp(action, "save_task")) {
1394                 save_task();
1395         } else if (!strcasecmp(action, "display_edit_event")) {
1396                 display_edit_event();
1397         } else if (!strcasecmp(action, "save_event")) {
1398                 save_event();
1399         } else if (!strcasecmp(action, "respond_to_request")) {
1400                 respond_to_request();
1401         } else if (!strcasecmp(action, "handle_rsvp")) {
1402                 handle_rsvp();
1403 #endif
1404         } else if (!strcasecmp(action, "summary")) {
1405                 summary();
1406         } else if (!strcasecmp(action, "summary_inner_div")) {
1407                 begin_ajax_response();
1408                 summary_inner_div();
1409                 end_ajax_response();
1410         } else if (!strcasecmp(action, "iconbar")) {
1411                 do_iconbar();
1412         } else if (!strcasecmp(action, "display_customize_iconbar")) {
1413                 display_customize_iconbar();
1414         } else if (!strcasecmp(action, "commit_iconbar")) {
1415                 commit_iconbar();
1416         } else if (!strcasecmp(action, "set_room_policy")) {
1417                 set_room_policy();
1418         } else if (!strcasecmp(action, "display_inetconf")) {
1419                 display_inetconf();
1420         } else if (!strcasecmp(action, "save_inetconf")) {
1421                 save_inetconf();
1422         } else if (!strcasecmp(action, "setup_wizard")) {
1423                 do_setup_wizard();
1424         } else if (!strcasecmp(action, "display_preferences")) {
1425                 display_preferences();
1426         } else if (!strcasecmp(action, "set_preferences")) {
1427                 set_preferences();
1428         } else if (!strcasecmp(action, "recp_autocomplete")) {
1429                 recp_autocomplete(bstr("recp"));
1430         } else if (!strcasecmp(action, "cc_autocomplete")) {
1431                 recp_autocomplete(bstr("cc"));
1432         } else if (!strcasecmp(action, "bcc_autocomplete")) {
1433                 recp_autocomplete(bstr("bcc"));
1434         } else if (!strcasecmp(action, "diagnostics")) {
1435                 output_headers(1, 1, 1, 0, 0, 0);
1436                 wprintf("Session: %d<hr />\n", WC->wc_session);
1437                 wprintf("Command: <br /><PRE>\n");
1438                 escputs(cmd);
1439                 wprintf("</PRE><hr />\n");
1440                 wprintf("Variables: <br /><PRE>\n");
1441                 dump_vars();
1442                 wprintf("</PRE><hr />\n");
1443                 wDumpContent(1);
1444         }
1445
1446         /* When all else fais, display the main menu. */
1447         else {
1448                 display_main_menu();
1449         }
1450
1451 SKIP_ALL_THIS_CRAP:
1452         fflush(stdout);
1453         if (content != NULL) {
1454                 free(content);
1455                 content = NULL;
1456         }
1457         free_urls();
1458         if (WC->upload_length > 0) {
1459                 free(WC->upload);
1460                 WC->upload_length = 0;
1461         }
1462
1463 }