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 #include "webcit.h"
  10 #include "groupdav.h"
  11 #include "webserver.h"
  12
  13 #include <stdio.h>
  14 #include <stdarg.h>
  15
  16 /*
  17  * String to unset the cookie.
  18  * Any date "in the past" will work, so I chose my birthday, right down to
  19  * the exact minute.  :)
  20  */
  21 static char *unset = "; expires=28-May-1971 18:10:00 GMT";
  22
  23 static HashList *HandlerHash = NULL;
  24
  25
  26 void WebcitAddUrlHandler(const char * UrlString, long UrlSLen, WebcitHandlerFunc F, int IsAjax)
  27 {
  28         WebcitHandler *NewHandler;
  29
  30         if (HandlerHash == NULL)
  31                 HandlerHash = NewHash(1, NULL);
  32
  33         NewHandler = (WebcitHandler*) malloc(sizeof(WebcitHandler));
  34         NewHandler->F = F;
  35         NewHandler->IsAjax = IsAjax;
  36
  37         Put(HandlerHash, UrlString, UrlSLen, NewHandler, NULL);
  38 }
  39
  40 /**
  41  * \brief remove escaped strings from i.e. the url string (like %20 for blanks)
  42  * \param buf the buffer to examine
  43  */
  44 long unescape_input(char *buf)
  45 {
  46         int a, b;
  47         char hex[3];
  48         long buflen;
  49         long len;
  50
  51         buflen = strlen(buf);
  52
  53         while ((buflen > 0) && (isspace(buf[buflen - 1]))){
  54                 buf[buflen - 1] = 0;
  55                 buflen --;
  56         }
  57
  58         a = 0;
  59         while (a < buflen) {
  60                 if (buf[a] == '+')
  61                         buf[a] = ' ';
  62                 if (buf[a] == '%') {
  63                         /* don't let % chars through, rather truncate the input. */
  64                         if (a + 2 > buflen) {
  65                                 buf[a] = '\0';
  66                                 buflen = a;
  67                         }
  68                         else {
  69                                 hex[0] = buf[a + 1];
  70                                 hex[1] = buf[a + 2];
  71                                 hex[2] = 0;
  72                                 b = 0;
  73                                 sscanf(hex, "%02x", &b);
  74                                 buf[a] = (char) b;
  75                                 len = buflen - a - 2;
  76                                 if (len > 0)
  77                                         memmove(&buf[a + 1], &buf[a + 3], len);
  78
  79                                 buflen -=2;
  80                         }
  81                 }
  82                 a++;
  83         }
  84         return a;
  85 }
  86
  87 void free_url(void *U)
  88 {
  89         urlcontent *u = (urlcontent*) U;
  90         free(u->url_data);
  91         free(u);
  92 }
  93
  94 /**
  95  * \brief Extract variables from the URL.
  96  * \param url URL supplied by the HTTP parser
  97  */
  98 void addurls(char *url)
  99 {
 100         char *aptr, *bptr, *eptr;
 101         char *up;
 102         char buf[SIZ] = "";
 103         int len, n, keylen;
 104         urlcontent *u;
 105         struct wcsession *WCC = WC;
 106
 107         if (WCC->urlstrings == NULL)
 108                 WCC->urlstrings = NewHash(1, NULL);
 109         eptr = buf + sizeof (buf);
 110         up = url;
 111         /** locate the = sign */
 112         n = safestrncpy(buf, up, sizeof buf);
 113         if (n < 0) /** hm, we exceeded the buffer... hmmm what todo now? */
 114                 n = -n;
 115         up = buf;
 116 //      while ((up < eptr) && (*up != '?') && (*up != '&'))
 117 //              up++;
 118         while (!IsEmptyStr(up)) {
 119                 aptr = up;
 120                 while ((aptr < eptr) && (*aptr != '\0') && (*aptr != '='))
 121                         aptr++;
 122                 if (*aptr != '=')
 123                         return;
 124                 *aptr = '\0';
 125                 aptr++;
 126                 bptr = aptr;
 127                 while ((bptr < eptr) && (*bptr != '\0')
 128                       && (*bptr != '&') && (*bptr != '?') && (*bptr != ' ')) {
 129                         bptr++;
 130                 }
 131                 *bptr = '\0';
 132                 u = (urlcontent *) malloc(sizeof(urlcontent));
 133
 134                 keylen = safestrncpy(u->url_key, up, sizeof u->url_key);
 135                 if (keylen < 0){
 136                         lprintf(1, "URLkey to long! [%s]", up);
 137                         continue;
 138                 }
 139
 140                 Put(WCC->urlstrings, u->url_key, keylen, u, free_url);
 141                 len = bptr - aptr;
 142                 u->url_data = malloc(len + 2);
 143                 safestrncpy(u->url_data, aptr, len + 2);
 144                 u->url_data_size = unescape_input(u->url_data);
 145                 u->url_data[u->url_data_size] = '\0';
 146                 up = bptr;
 147                 ++up;
 148 /*
 149                 lprintf(9, "%s = [%ld]  %s\n", u->url_key, u->url_data_size, u->url_data);
 150 */
 151         }
 152 }
 153
 154 /**
 155  * \brief free urlstring memory
 156  */
 157 void free_urls(void)
 158 {
 159         DeleteHash(&WC->urlstrings);
 160 }
 161
 162 /**
 163  * \brief Diagnostic function to display the contents of all variables
 164  */
 165
 166 void dump_vars(void)
 167 {
 168         struct wcsession *WCC = WC;
 169         urlcontent *u;
 170         void *U;
 171         long HKLen;
 172         char *HKey;
 173         HashPos *Cursor;
 174
 175         Cursor = GetNewHashPos ();
 176         while (GetNextHashPos(WCC->urlstrings, Cursor, &HKLen, &HKey, &U)) {
 177                 u = (urlcontent*) U;
 178                 wprintf("%38s = %s\n", u->url_key, u->url_data);
 179         }
 180 }
 181
 182 /**
 183  * \brief Return the value of a variable supplied to the current web page (from the url or a form)
 184  * \param key The name of the variable we want
 185  */
 186
 187 const char *XBstr(char *key, size_t keylen, size_t *len)
 188 {
 189         void *U;
 190
 191         if ((WC->urlstrings != NULL) &&
 192             GetHash(WC->urlstrings, key, keylen, &U)) {
 193                 *len = ((urlcontent *)U)->url_data_size;
 194                 return ((urlcontent *)U)->url_data;
 195         }
 196         else {
 197                 *len = 0;
 198                 return ("");
 199         }
 200 }
 201
 202 const char *XBSTR(char *key, size_t *len)
 203 {
 204         void *U;
 205
 206         if ((WC->urlstrings != NULL) &&
 207             GetHash(WC->urlstrings, key, strlen (key), &U)){
 208                 *len = ((urlcontent *)U)->url_data_size;
 209                 return ((urlcontent *)U)->url_data;
 210         }
 211         else {
 212                 *len = 0;
 213                 return ("");
 214         }
 215 }
 216
 217
 218 const char *BSTR(char *key)
 219 {
 220         void *U;
 221
 222         if ((WC->urlstrings != NULL) &&
 223             GetHash(WC->urlstrings, key, strlen (key), &U))
 224                 return ((urlcontent *)U)->url_data;
 225         else
 226                 return ("");
 227 }
 228
 229 const char *Bstr(char *key, size_t keylen)
 230 {
 231         void *U;
 232
 233         if ((WC->urlstrings != NULL) &&
 234             GetHash(WC->urlstrings, key, keylen, &U))
 235                 return ((urlcontent *)U)->url_data;
 236         else
 237                 return ("");
 238 }
 239
 240 long LBstr(char *key, size_t keylen)
 241 {
 242         void *U;
 243
 244         if ((WC->urlstrings != NULL) &&
 245             GetHash(WC->urlstrings, key, keylen, &U))
 246                 return atol(((urlcontent *)U)->url_data);
 247         else
 248                 return (0);
 249 }
 250
 251 long LBSTR(char *key)
 252 {
 253         void *U;
 254
 255         if ((WC->urlstrings != NULL) &&
 256             GetHash(WC->urlstrings, key, strlen(key), &U))
 257                 return atol(((urlcontent *)U)->url_data);
 258         else
 259                 return (0);
 260 }
 261
 262 int IBstr(char *key, size_t keylen)
 263 {
 264         void *U;
 265
 266         if ((WC->urlstrings != NULL) &&
 267             GetHash(WC->urlstrings, key, keylen, &U))
 268                 return atoi(((urlcontent *)U)->url_data);
 269         else
 270                 return (0);
 271 }
 272
 273 int IBSTR(char *key)
 274 {
 275         void *U;
 276
 277         if ((WC->urlstrings != NULL) &&
 278             GetHash(WC->urlstrings, key, strlen(key), &U))
 279                 return atoi(((urlcontent *)U)->url_data);
 280         else
 281                 return (0);
 282 }
 283
 284 int HaveBstr(char *key, size_t keylen)
 285 {
 286         void *U;
 287
 288         if ((WC->urlstrings != NULL) &&
 289             GetHash(WC->urlstrings, key, keylen, &U))
 290                 return ((urlcontent *)U)->url_data_size != 0;
 291         else
 292                 return (0);
 293 }
 294
 295 int HAVEBSTR(char *key)
 296 {
 297         void *U;
 298
 299         if ((WC->urlstrings != NULL) &&
 300             GetHash(WC->urlstrings, key, strlen(key), &U))
 301                 return ((urlcontent *)U)->url_data_size != 0;
 302         else
 303                 return (0);
 304 }
 305
 306
 307 int YesBstr(char *key, size_t keylen)
 308 {
 309         void *U;
 310
 311         if ((WC->urlstrings != NULL) &&
 312             GetHash(WC->urlstrings, key, keylen, &U))
 313                 return strcmp( ((urlcontent *)U)->url_data, "yes") == 0;
 314         else
 315                 return (0);
 316 }
 317
 318 int YESBSTR(char *key)
 319 {
 320         void *U;
 321
 322         if ((WC->urlstrings != NULL) &&
 323             GetHash(WC->urlstrings, key, strlen(key), &U))
 324                 return strcmp( ((urlcontent *)U)->url_data, "yes") == 0;
 325         else
 326                 return (0);
 327 }
 328
 329 /**
 330  * \brief web-printing funcion. uses our vsnprintf wrapper
 331  * \param format printf format string
 332  * \param ... the varargs to put into formatstring
 333  */
 334 void wprintf(const char *format,...)
 335 {
 336         va_list arg_ptr;
 337         char wbuf[4096];
 338
 339         va_start(arg_ptr, format);
 340         vsnprintf(wbuf, sizeof wbuf, format, arg_ptr);
 341         va_end(arg_ptr);
 342
 343         client_write(wbuf, strlen(wbuf));
 344 }
 345
 346
 347 /**
 348  * \brief wrap up an HTTP session, closes tags, etc.
 349  * \todo multiline params?
 350  * \param print_standard_html_footer should be set to 0 to transmit only, 1 to
 351  * append the main menu and closing tags, or 2 to
 352  * append the closing tags only.
 353  */
 354 void wDumpContent(int print_standard_html_footer)
 355 {
 356         if (print_standard_html_footer) {
 357                 wprintf("</div>\n");    /* end of "text" div */
 358                 do_template("trailing");
 359         }
 360
 361         /* If we've been saving it all up for one big output burst,
 362          * go ahead and do that now.
 363          */
 364         end_burst();
 365 }
 366
 367
 368 /**
 369  * \brief Copy a string, escaping characters which have meaning in HTML.
 370  * \param target target buffer
 371  * \param strbuf source buffer
 372  * \param nbsp If nonzero, spaces are converted to non-breaking spaces.
 373  * \param nolinebreaks if set, linebreaks are removed from the string.
 374  */
 375 long stresc(char *target, long tSize, char *strbuf, int nbsp, int nolinebreaks)
 376 {
 377         char *aptr, *bptr, *eptr;
 378
 379         *target = '\0';
 380         aptr = strbuf;
 381         bptr = target;
 382         eptr = target + tSize - 6; // our biggest unit to put in...
 383
 384         while ((bptr < eptr) && !IsEmptyStr(aptr) ){
 385                 if (*aptr == '<') {
 386                         memcpy(bptr, "&lt;", 4);
 387                         bptr += 4;
 388                 }
 389                 else if (*aptr == '>') {
 390                         memcpy(bptr, "&gt;", 4);
 391                         bptr += 4;
 392                 }
 393                 else if (*aptr == '&') {
 394                         memcpy(bptr, "&amp;", 5);
 395                         bptr += 5;
 396                 }
 397                 else if (*aptr == '\"') {
 398                         memcpy(bptr, "&quot;", 6);
 399                         bptr += 6;
 400                 }
 401                 else if (*aptr == '\'') {
 402                         memcpy(bptr, "&#39;", 5);
 403                         bptr += 5;
 404                 }
 405                 else if (*aptr == LB) {
 406                         *bptr = '<';
 407                         bptr ++;
 408                 }
 409                 else if (*aptr == RB) {
 410                         *bptr = '>';
 411                         bptr ++;
 412                 }
 413                 else if (*aptr == QU) {
 414                         *bptr ='"';
 415                         bptr ++;
 416                 }
 417                 else if ((*aptr == 32) && (nbsp == 1)) {
 418                         memcpy(bptr, "&nbsp;", 6);
 419                         bptr += 6;
 420                 }
 421                 else if ((*aptr == '\n') && (nolinebreaks)) {
 422                         *bptr='\0';     /* nothing */
 423                 }
 424                 else if ((*aptr == '\r') && (nolinebreaks)) {
 425                         *bptr='\0';     /* nothing */
 426                 }
 427                 else{
 428                         *bptr = *aptr;
 429                         bptr++;
 430                 }
 431                 aptr ++;
 432         }
 433         *bptr = '\0';
 434         if ((bptr = eptr - 1 ) && !IsEmptyStr(aptr) )
 435                 return -1;
 436         return (bptr - target);
 437 }
 438
 439 /**
 440  * \brief WHAT???
 441  * \param strbuf what???
 442  * \param nbsp If nonzero, spaces are converted to non-breaking spaces.
 443  * \param nolinebreaks if set, linebreaks are removed from the string.
 444  */
 445 void escputs1(char *strbuf, int nbsp, int nolinebreaks)
 446 {
 447         char *buf;
 448         long Siz;
 449
 450         if (strbuf == NULL) return;
 451         Siz = (3 * strlen(strbuf)) + SIZ ;
 452         buf = malloc(Siz);
 453         stresc(buf, Siz, strbuf, nbsp, nolinebreaks);
 454         wprintf("%s", buf);
 455         free(buf);
 456 }
 457
 458 /**
 459  * \brief static wrapper for ecsputs1
 460  * \param strbuf buffer to print escaped to client
 461  */
 462 void escputs(char *strbuf)
 463 {
 464         escputs1(strbuf, 0, 0);
 465 }
 466
 467
 468 /**
 469  * \brief urlescape buffer and print it to the client
 470  * \param strbuf buffer to urlescape
 471  */
 472 void urlescputs(char *strbuf)
 473 {
 474         char outbuf[SIZ];
 475
 476         urlesc(outbuf, SIZ, strbuf);
 477         wprintf("%s", outbuf);
 478 }
 479
 480
 481 /**
 482  * \brief Copy a string, escaping characters for JavaScript strings.
 483  * \param target output string
 484  * \param strbuf input string
 485  */
 486 void jsesc(char *target, size_t tlen, char *strbuf)
 487 {
 488         int len;
 489         char *tend;
 490         char *send;
 491         char *tptr;
 492         char *sptr;
 493
 494         target[0]='\0';
 495         len = strlen (strbuf);
 496         send = strbuf + len;
 497         tend = target + tlen;
 498         sptr = strbuf;
 499         tptr = target;
 500
 501         while (!IsEmptyStr(sptr) &&
 502                (sptr < send) &&
 503                (tptr < tend)) {
 504
 505                 if (*sptr == '<')
 506                         *tptr = '[';
 507                 else if (*sptr == '>')
 508                         *tptr = ']';
 509                 else if (*sptr == '\'') {
 510                         if (tend - tptr < 3)
 511                                 return;
 512                         *(tptr++) = '\\';
 513                         *tptr = '\'';
 514                 }
 515                 else if (*sptr == '"') {
 516                         if (tend - tptr < 8)
 517                                 return;
 518                         *(tptr++) = '&';
 519                         *(tptr++) = 'q';
 520                         *(tptr++) = 'u';
 521                         *(tptr++) = 'o';
 522                         *(tptr++) = 't';
 523                         *tptr = ';';
 524                 }
 525                 else if (*sptr == '&') {
 526                         if (tend - tptr < 7)
 527                                 return;
 528                         *(tptr++) = '&';
 529                         *(tptr++) = 'a';
 530                         *(tptr++) = 'm';
 531                         *(tptr++) = 'p';
 532                         *tptr = ';';
 533                 } else {
 534                         *tptr = *sptr;
 535                 }
 536                 tptr++; sptr++;
 537         }
 538         *tptr = '\0';
 539 }
 540
 541 /**
 542  * \brief escape and print java script
 543  * \param strbuf the js code
 544  */
 545 void jsescputs(char *strbuf)
 546 {
 547         char outbuf[SIZ];
 548
 549         jsesc(outbuf, SIZ, strbuf);
 550         wprintf("%s", outbuf);
 551 }
 552
 553 /**
 554  * \brief Copy a string, escaping characters for message text hold
 555  * \param target target buffer
 556  * \param strbuf source buffer
 557  */
 558 void msgesc(char *target, size_t tlen, char *strbuf)
 559 {
 560         int len;
 561         char *tend;
 562         char *send;
 563         char *tptr;
 564         char *sptr;
 565
 566         target[0]='\0';
 567         len = strlen (strbuf);
 568         send = strbuf + len;
 569         tend = target + tlen;
 570         sptr = strbuf;
 571         tptr = target;
 572
 573         while (!IsEmptyStr(sptr) &&
 574                (sptr < send) &&
 575                (tptr < tend)) {
 576
 577                 if (*sptr == '\n')
 578                         *tptr = ' ';
 579                 else if (*sptr == '\r')
 580                         *tptr = ' ';
 581                 else if (*sptr == '\'') {
 582                         if (tend - tptr < 8)
 583                                 return;
 584                         *(tptr++) = '&';
 585                         *(tptr++) = '#';
 586                         *(tptr++) = '3';
 587                         *(tptr++) = '9';
 588                         *tptr = ';';
 589                 } else {
 590                         *tptr = *sptr;
 591                 }
 592                 tptr++; sptr++;
 593         }
 594         *tptr = '\0';
 595 }
 596
 597 /**
 598  * \brief print a string to the client after cleaning it with msgesc() and stresc()
 599  * \param strbuf string to be printed
 600  */
 601 void msgescputs1( char *strbuf)
 602 {
 603         char *outbuf;
 604         char *outbuf2;
 605         int buflen;
 606
 607         if (strbuf == NULL) return;
 608         buflen = 3 * strlen(strbuf) + SIZ;
 609         outbuf = malloc( buflen);
 610         outbuf2 = malloc( buflen);
 611         msgesc(outbuf, buflen, strbuf);
 612         stresc(outbuf2, buflen, outbuf, 0, 0);
 613         wprintf("%s", outbuf2);
 614         free(outbuf);
 615         free(outbuf2);
 616 }
 617
 618 /**
 619  * \brief print a string to the client after cleaning it with msgesc()
 620  * \param strbuf string to be printed
 621  */
 622 void msgescputs(char *strbuf) {
 623         char *outbuf;
 624         size_t len;
 625
 626         if (strbuf == NULL) return;
 627         len =  (3 * strlen(strbuf)) + SIZ;
 628         outbuf = malloc(len);
 629         msgesc(outbuf, len, strbuf);
 630         wprintf("%s", outbuf);
 631         free(outbuf);
 632 }
 633
 634
 635
 636
 637 /**
 638  * \brief Output all that important stuff that the browser will want to see
 639  */
 640 void output_headers(    int do_httpheaders,     /**< 1 = output HTTP headers                          */
 641                         int do_htmlhead,        /**< 1 = output HTML <head> section and <body> opener */
 642
 643                         int do_room_banner,     /**< 0=no, 1=yes,
 644                                                                  * 2 = I'm going to embed my own, so don't open the
 645                                                                  *     <div id="content"> either.
 646                                                                  */
 647
 648                         int unset_cookies,      /**< 1 = session is terminating, so unset the cookies */
 649                         int suppress_check,     /**< 1 = suppress check for instant messages          */
 650                         int cache               /**< 1 = allow browser to cache this page             */
 651 ) {
 652         char cookie[1024];
 653         char httpnow[128];
 654
 655         wprintf("HTTP/1.1 200 OK\n");
 656         http_datestring(httpnow, sizeof httpnow, time(NULL));
 657
 658         if (do_httpheaders) {
 659                 wprintf("Content-type: text/html; charset=utf-8\r\n"
 660                         "Server: %s / %s\n"
 661                         "Connection: close\r\n",
 662                         PACKAGE_STRING, serv_info.serv_software
 663                 );
 664         }
 665
 666         if (cache) {
 667                 wprintf("Pragma: public\r\n"
 668                         "Cache-Control: max-age=3600, must-revalidate\r\n"
 669                         "Last-modified: %s\r\n",
 670                         httpnow
 671                 );
 672         }
 673         else {
 674                 wprintf("Pragma: no-cache\r\n"
 675                         "Cache-Control: no-store\r\n"
 676                         "Expires: -1\r\n"
 677                 );
 678         }
 679
 680         stuff_to_cookie(cookie, 1024, WC->wc_session, WC->wc_username,
 681                         WC->wc_password, WC->wc_roomname);
 682
 683         if (unset_cookies) {
 684                 wprintf("Set-cookie: webcit=%s; path=/\r\n", unset);
 685         } else {
 686                 wprintf("Set-cookie: webcit=%s; path=/\r\n", cookie);
 687                 if (server_cookie != NULL) {
 688                         wprintf("%s\n", server_cookie);
 689                 }
 690         }
 691
 692         if (do_htmlhead) {
 693                 begin_burst();
 694                 if (!access("static.local/webcit.css", R_OK)) {
 695                         svprintf("CSSLOCAL", WCS_STRING,
 696                            "<link href=\"static.local/webcit.css\" rel=\"stylesheet\" type=\"text/css\">"
 697                         );
 698                 }
 699                 do_template("head");
 700         }
 701
 702         /** ICONBAR */
 703         if (do_htmlhead) {
 704
 705
 706                 /** check for ImportantMessages (these display in a div overlaying the main screen) */
 707                 if (!IsEmptyStr(WC->ImportantMessage)) {
 708                         wprintf("<div id=\"important_message\">\n"
 709                                 "<span class=\"imsg\">");
 710                         escputs(WC->ImportantMessage);
 711                         wprintf("</span><br />\n"
 712                                 "</div>\n"
 713                                 "<script type=\"text/javascript\">\n"
 714                                 "        setTimeout('hide_imsg_popup()', 5000); \n"
 715                                 "</script>\n");
 716                         WC->ImportantMessage[0] = 0;
 717                 }
 718
 719                 if ( (WC->logged_in) && (!unset_cookies) ) {
 720                         wprintf("<div id=\"iconbar\">");
 721                         do_selected_iconbar();
 722                         /** check for instant messages (these display in a new window) */
 723                         page_popup();
 724                         wprintf("</div>");
 725                 }
 726
 727                 if (do_room_banner == 1) {
 728                         wprintf("<div id=\"banner\">\n");
 729                         embed_room_banner(NULL, navbar_default);
 730                         wprintf("</div>\n");
 731                 }
 732         }
 733
 734         if (do_room_banner == 1) {
 735                 wprintf("<div id=\"content\">\n");
 736         }
 737 }
 738
 739
 740 /**
 741  * \brief Generic function to do an HTTP redirect.  Easy and fun.
 742  * \param whichpage target url to 302 to
 743  */
 744 void http_redirect(char *whichpage) {
 745         wprintf("HTTP/1.1 302 Moved Temporarily\n");
 746         wprintf("Location: %s\r\n", whichpage);
 747         wprintf("URI: %s\r\n", whichpage);
 748         wprintf("Content-type: text/html; charset=utf-8\r\n\r\n");
 749         wprintf("<html><body>");
 750         wprintf("Go <a href=\"%s\">here</A>.", whichpage);
 751         wprintf("</body></html>\n");
 752 }
 753
 754
 755
 756 /**
 757  * \brief Output a piece of content to the web browser
 758  */
 759 void http_transmit_thing(char *thing, size_t length, const char *content_type,
 760                          int is_static) {
 761
 762         output_headers(0, 0, 0, 0, 0, is_static);
 763
 764         wprintf("Content-type: %s\r\n"
 765                 "Server: %s\r\n"
 766                 "Connection: close\r\n",
 767                 content_type,
 768                 PACKAGE_STRING);
 769
 770 #ifdef HAVE_ZLIB
 771         /** If we can send the data out compressed, please do so. */
 772         if (WC->gzip_ok) {
 773                 char *compressed_data = NULL;
 774                 size_t compressed_len;
 775
 776                 compressed_len =  ((length * 101) / 100) + 100;
 777                 compressed_data = malloc(compressed_len);
 778
 779                 if (compress_gzip((Bytef *) compressed_data,
 780                                   &compressed_len,
 781                                   (Bytef *) thing,
 782                                   (uLongf) length, Z_BEST_SPEED) == Z_OK) {
 783                         wprintf("Content-encoding: gzip\r\n"
 784                                 "Content-length: %ld\r\n"
 785                                 "\r\n",
 786                                 (long) compressed_len
 787                         );
 788                         client_write(compressed_data, (size_t)compressed_len);
 789                         free(compressed_data);
 790                         return;
 791                 }
 792         }
 793 #endif
 794
 795         /** No compression ... just send it out as-is */
 796         wprintf("Content-length: %ld\r\n"
 797                 "\r\n",
 798                 (long) length
 799         );
 800         client_write(thing, (size_t)length);
 801 }
 802
 803 /**
 804  * \brief print menu box like used in the floor view or admin interface.
 805  * This function takes pair of strings as va_args,
 806  * \param Title Title string of the box
 807  * \param Class CSS Class for the box
 808  * \param nLines How many string pairs should we print? (URL, UrlText)
 809  * \param ... Pairs of URL Strings and their Names
 810  */
 811 void print_menu_box(char* Title, char *Class, int nLines, ...)
 812 {
 813         va_list arg_list;
 814         long i;
 815
 816         svprintf("BOXTITLE", WCS_STRING, Title);
 817         do_template("beginbox");
 818
 819         wprintf("<ul class=\"%s\">", Class);
 820
 821         va_start(arg_list, nLines);
 822         for (i = 0; i < nLines; ++i)
 823         {
 824                 wprintf("<li><a href=\"%s\">", va_arg(arg_list, char *));
 825                 wprintf((char *) va_arg(arg_list, char *));
 826                 wprintf("</a></li>\n");
 827         }
 828         va_end (arg_list);
 829
 830         wprintf("</a></li>\n");
 831
 832         wprintf("</ul>");
 833
 834         do_template("endbox");
 835 }
 836
 837
 838 /**
 839  * \brief dump out static pages from disk
 840  * \param what the file urs to print
 841  */
 842 void output_static(char *what)
 843 {
 844         FILE *fp;
 845         struct stat statbuf;
 846         off_t bytes;
 847         off_t count = 0;
 848         size_t res;
 849         char *bigbuffer;
 850         const char *content_type;
 851         int len;
 852
 853         fp = fopen(what, "rb");
 854         if (fp == NULL) {
 855                 lprintf(9, "output_static('%s')  -- NOT FOUND --\n", what);
 856                 wprintf("HTTP/1.1 404 %s\r\n", strerror(errno));
 857                 wprintf("Content-Type: text/plain\r\n");
 858                 wprintf("\r\n");
 859                 wprintf("Cannot open %s: %s\r\n", what, strerror(errno));
 860         } else {
 861                 len = strlen (what);
 862                 content_type = GuessMimeByFilename(what, len);
 863
 864                 if (fstat(fileno(fp), &statbuf) == -1) {
 865                         lprintf(9, "output_static('%s')  -- FSTAT FAILED --\n", what);
 866                         wprintf("HTTP/1.1 404 %s\r\n", strerror(errno));
 867                         wprintf("Content-Type: text/plain\r\n");
 868                         wprintf("\r\n");
 869                         wprintf("Cannot fstat %s: %s\n", what, strerror(errno));
 870                         return;
 871                 }
 872
 873                 count = 0;
 874                 bytes = statbuf.st_size;
 875                 if ((bigbuffer = malloc(bytes + 2)) == NULL) {
 876                         lprintf(9, "output_static('%s')  -- MALLOC FAILED (%s) --\n", what, strerror(errno));
 877                         wprintf("HTTP/1.1 500 internal server error\r\n");
 878                         wprintf("Content-Type: text/plain\r\n");
 879                         wprintf("\r\n");
 880                         return;
 881                 }
 882                 while (count < bytes) {
 883                         if ((res = fread(bigbuffer + count, 1, bytes - count, fp)) == 0) {
 884                                 lprintf(9, "output_static('%s')  -- FREAD FAILED (%s) %zu bytes of %zu --\n", what, strerror(errno), bytes - count, bytes);
 885                                 wprintf("HTTP/1.1 500 internal server error \r\n");
 886                                 wprintf("Content-Type: text/plain\r\n");
 887                                 wprintf("\r\n");
 888                                 return;
 889                         }
 890                         count += res;
 891                 }
 892
 893                 fclose(fp);
 894
 895                 lprintf(9, "output_static('%s')  %s\n", what, content_type);
 896                 http_transmit_thing(bigbuffer, (size_t)bytes, content_type, 1);
 897                 free(bigbuffer);
 898         }
 899         if (yesbstr("force_close_session")) {
 900                 end_webcit_session();
 901         }
 902 }
 903
 904 /**
 905  * \brief When the browser requests an image file from the Citadel server,
 906  * this function is called to transmit it.
 907  */
 908 void output_image()
 909 {
 910         char buf[SIZ];
 911         char *xferbuf = NULL;
 912         off_t bytes;
 913         const char *MimeType;
 914
 915         serv_printf("OIMG %s|%s", bstr("name"), bstr("parm"));
 916         serv_getln(buf, sizeof buf);
 917         if (buf[0] == '2') {
 918                 bytes = extract_long(&buf[4], 0);
 919                 xferbuf = malloc(bytes + 2);
 920
 921                 /** Read it from the server */
 922                 read_server_binary(xferbuf, bytes);
 923                 serv_puts("CLOS");
 924                 serv_getln(buf, sizeof buf);
 925
 926                 MimeType = GuessMimeType (xferbuf, bytes);
 927                 /** Write it to the browser */
 928                 if (!IsEmptyStr(MimeType))
 929                 {
 930                         http_transmit_thing(xferbuf,
 931                                             (size_t)bytes,
 932                                             MimeType,
 933                                             0);
 934                         free(xferbuf);
 935                         return;
 936                 }
 937                 /* hm... unknown mimetype? fallback to blank gif */
 938                 free(xferbuf);
 939         }
 940
 941
 942         /**
 943          * Instead of an ugly 404, send a 1x1 transparent GIF
 944          * when there's no such image on the server.
 945          */
 946         char blank_gif[SIZ];
 947         snprintf (blank_gif, SIZ, "%s%s", static_dirs[0], "/blank.gif");
 948         output_static(blank_gif);
 949 }
 950
 951 /**
 952  * \brief Generic function to output an arbitrary MIME part from an arbitrary
 953  *        message number on the server.
 954  *
 955  * \param msgnum                Number of the item on the citadel server
 956  * \param partnum               The MIME part to be output
 957  * \param force_download        Nonzero to force set the Content-Type: header
 958  *                              to "application/octet-stream"
 959  */
 960 void mimepart(char *msgnum, char *partnum, int force_download)
 961 {
 962         char buf[256];
 963         off_t bytes;
 964         char content_type[256];
 965         char *content = NULL;
 966
 967         serv_printf("OPNA %s|%s", msgnum, partnum);
 968         serv_getln(buf, sizeof buf);
 969         if (buf[0] == '2') {
 970                 bytes = extract_long(&buf[4], 0);
 971                 content = malloc(bytes + 2);
 972                 if (force_download) {
 973                         strcpy(content_type, "application/octet-stream");
 974                 }
 975                 else {
 976                         extract_token(content_type, &buf[4], 3, '|', sizeof content_type);
 977                 }
 978                 output_headers(0, 0, 0, 0, 0, 0);
 979                 read_server_binary(content, bytes);
 980                 serv_puts("CLOS");
 981                 serv_getln(buf, sizeof buf);
 982                 http_transmit_thing(content, bytes, content_type, 0);
 983                 free(content);
 984         } else {
 985                 wprintf("HTTP/1.1 404 %s\n", &buf[4]);
 986                 output_headers(0, 0, 0, 0, 0, 0);
 987                 wprintf("Content-Type: text/plain\r\n");
 988                 wprintf("\r\n");
 989                 wprintf(_("An error occurred while retrieving this part: %s\n"), &buf[4]);
 990         }
 991
 992 }
 993
 994
 995 /**
 996  * \brief Read any MIME part of a message, from the server, into memory.
 997  * \param msgnum number of the message on the citadel server
 998  * \param partnum the MIME part to be loaded
 999  */
1000 char *load_mimepart(long msgnum, char *partnum)
1001 {
1002         char buf[SIZ];
1003         off_t bytes;
1004         char content_type[SIZ];
1005         char *content;
1006
1007         serv_printf("DLAT %ld|%s", msgnum, partnum);
1008         serv_getln(buf, sizeof buf);
1009         if (buf[0] == '6') {
1010                 bytes = extract_long(&buf[4], 0);
1011                 extract_token(content_type, &buf[4], 3, '|', sizeof content_type);
1012
1013                 content = malloc(bytes + 2);
1014                 serv_read(content, bytes);
1015
1016                 content[bytes] = 0;     /* null terminate for good measure */
1017                 return(content);
1018         }
1019         else {
1020                 return(NULL);
1021         }
1022
1023 }
1024
1025
1026 /**
1027  * \brief Convenience functions to display a page containing only a string
1028  * \param titlebarcolor color of the titlebar of the frame
1029  * \param titlebarmsg text to display in the title bar
1030  * \param messagetext body of the box
1031  */
1032 void convenience_page(char *titlebarcolor, char *titlebarmsg, char *messagetext)
1033 {
1034         wprintf("HTTP/1.1 200 OK\n");
1035         output_headers(1, 1, 2, 0, 0, 0);
1036         wprintf("<div id=\"banner\">\n");
1037         wprintf("<table width=100%% border=0 bgcolor=\"#%s\"><tr><td>", titlebarcolor);
1038         wprintf("<span class=\"titlebar\">%s</span>\n", titlebarmsg);
1039         wprintf("</td></tr></table>\n");
1040         wprintf("</div>\n<div id=\"content\">\n");
1041         escputs(messagetext);
1042
1043         wprintf("<hr />\n");
1044         wDumpContent(1);
1045 }
1046
1047
1048 /**
1049  * \brief Display a blank page.
1050  */
1051 void blank_page(void) {
1052         output_headers(1, 1, 0, 0, 0, 0);
1053         wDumpContent(2);
1054 }
1055
1056
1057 /**
1058  * \brief A template has been requested
1059  */
1060 void url_do_template(void) {
1061         do_template(bstr("template"));
1062 }
1063
1064
1065
1066 /**
1067  * \brief Offer to make any page the user's "start page."
1068  */
1069 void offer_start_page(void) {
1070         wprintf("<a href=\"change_start_page?startpage=");
1071         urlescputs(WC->this_page);
1072         wprintf("\">");
1073         wprintf(_("Make this my start page"));
1074         wprintf("</a>");
1075 #ifdef TECH_PREVIEW
1076         wprintf("<br/><a href=\"rss?room=");
1077         urlescputs(WC->wc_roomname);
1078         wprintf("\" title=\"RSS 2.0 feed for ");
1079         escputs(WC->wc_roomname);
1080         wprintf("\"><img alt=\"RSS\" border=\"0\" src=\"static/xml_button.gif\"/></a>\n");
1081 #endif
1082 }
1083
1084
1085 /**
1086  * \brief Change the user's start page
1087  */
1088 void change_start_page(void) {
1089
1090         if (bstr("startpage") == NULL) {
1091                 safestrncpy(WC->ImportantMessage,
1092                         _("You no longer have a start page selected."),
1093                         sizeof WC->ImportantMessage);
1094                 display_main_menu();
1095                 return;
1096         }
1097
1098         set_preference("startpage", bstr("startpage"), 1);
1099
1100         output_headers(1, 1, 0, 0, 0, 0);
1101         do_template("newstartpage");
1102         wDumpContent(1);
1103 }
1104
1105
1106
1107 /**
1108  * \brief convenience function to indicate success
1109  * \param successmessage the mesage itself
1110  */
1111 void display_success(char *successmessage)
1112 {
1113         convenience_page("007700", "OK", successmessage);
1114 }
1115
1116
1117 /**
1118  * \brief Authorization required page
1119  * This is probably temporary and should be revisited
1120  * \param message message to put in header
1121 */
1122 void authorization_required(const char *message)
1123 {
1124         wprintf("HTTP/1.1 401 Authorization Required\r\n");
1125         wprintf("WWW-Authenticate: Basic realm=\"\"\r\n", serv_info.serv_humannode);
1126         wprintf("Content-Type: text/html\r\n\r\n");
1127         wprintf("<h1>");
1128         wprintf(_("Authorization Required"));
1129         wprintf("</h1>\r\n");
1130         wprintf(_("The resource you requested requires a valid username and password. "
1131                 "You could not be logged in: %s\n"), message);
1132         wDumpContent(0);
1133 }
1134
1135 /**
1136  * \brief This function is called by the MIME parser to handle data uploaded by
1137  *        the browser.  Form data, uploaded files, and the data from HTTP PUT
1138  *        operations (such as those found in GroupDAV) all arrive this way.
1139  *
1140  * \param name Name of the item being uploaded
1141  * \param filename Filename of the item being uploaded
1142  * \param partnum MIME part identifier (not needed)
1143  * \param disp MIME content disposition (not needed)
1144  * \param content The actual data
1145  * \param cbtype MIME content-type
1146  * \param cbcharset Character set
1147  * \param length Content length
1148  * \param encoding MIME encoding type (not needed)
1149  * \param userdata Not used here
1150  */
1151 void upload_handler(char *name, char *filename, char *partnum, char *disp,
1152                         void *content, char *cbtype, char *cbcharset,
1153                         size_t length, char *encoding, void *userdata)
1154 {
1155         urlcontent *u;
1156 /*
1157         lprintf(9, "upload_handler() name=%s, type=%s, len=%d\n", name, cbtype, length);
1158 */
1159         if (WC->urlstrings == NULL)
1160                 WC->urlstrings = NewHash(1, NULL);
1161
1162         /* Form fields */
1163         if ( (length > 0) && (IsEmptyStr(cbtype)) ) {
1164                 u = (urlcontent *) malloc(sizeof(urlcontent));
1165
1166                 safestrncpy(u->url_key, name, sizeof(u->url_key));
1167                 u->url_data = malloc(length + 1);
1168                 u->url_data_size = length;
1169                 memcpy(u->url_data, content, length);
1170                 u->url_data[length] = 0;
1171                 Put(WC->urlstrings, u->url_key, strlen(u->url_key), u, free_url);
1172
1173 /*              lprintf(9, "Key: <%s> len: [%ld] Data: <%s>\n", u->url_key, u->url_data_size, u->url_data);*/
1174         }
1175
1176         /** Uploaded files */
1177         if ( (length > 0) && (!IsEmptyStr(cbtype)) ) {
1178                 WC->upload = malloc(length);
1179                 if (WC->upload != NULL) {
1180                         WC->upload_length = length;
1181                         safestrncpy(WC->upload_filename, filename,
1182                                         sizeof(WC->upload_filename));
1183                         safestrncpy(WC->upload_content_type, cbtype,
1184                                         sizeof(WC->upload_content_type));
1185                         memcpy(WC->upload, content, length);
1186                 }
1187                 else {
1188                         lprintf(3, "malloc() failed: %s\n", strerror(errno));
1189                 }
1190         }
1191
1192 }
1193
1194 /**
1195  * \brief Convenience functions to wrap around asynchronous ajax responses
1196  */
1197 void begin_ajax_response(void) {
1198         output_headers(0, 0, 0, 0, 0, 0);
1199
1200         wprintf("Content-type: text/html; charset=UTF-8\r\n"
1201                 "Server: %s\r\n"
1202                 "Connection: close\r\n"
1203                 "Pragma: no-cache\r\n"
1204                 "Cache-Control: no-cache\r\n"
1205                 "Expires: -1\r\n"
1206                 ,
1207                 PACKAGE_STRING);
1208         begin_burst();
1209 }
1210
1211 /**
1212  * \brief print ajax response footer
1213  */
1214 void end_ajax_response(void) {
1215         wprintf("\r\n");
1216         wDumpContent(0);
1217 }
1218
1219 /**
1220  * \brief Wraps a Citadel server command in an AJAX transaction.
1221  */
1222 void ajax_servcmd(void)
1223 {
1224         char buf[1024];
1225         char gcontent[1024];
1226         char *junk;
1227         size_t len;
1228
1229         begin_ajax_response();
1230
1231         serv_printf("%s", bstr("g_cmd"));
1232         serv_getln(buf, sizeof buf);
1233         wprintf("%s\n", buf);
1234
1235         if (buf[0] == '8') {
1236                 serv_printf("\n\n000");
1237         }
1238         if ((buf[0] == '1') || (buf[0] == '8')) {
1239                 while (serv_getln(gcontent, sizeof gcontent), strcmp(gcontent, "000")) {
1240                         wprintf("%s\n", gcontent);
1241                 }
1242                 wprintf("000");
1243         }
1244         if (buf[0] == '4') {
1245                 text_to_server(bstr("g_input"));
1246                 serv_puts("000");
1247         }
1248         if (buf[0] == '6') {
1249                 len = atol(&buf[4]);
1250                 junk = malloc(len);
1251                 serv_read(junk, len);
1252                 free(junk);
1253         }
1254         if (buf[0] == '7') {
1255                 len = atol(&buf[4]);
1256                 junk = malloc(len);
1257                 memset(junk, 0, len);
1258                 serv_write(junk, len);
1259                 free(junk);
1260         }
1261
1262         end_ajax_response();
1263
1264         /**
1265          * This is kind of an ugly hack, but this is the only place it can go.
1266          * If the command was GEXP, then the instant messenger window must be
1267          * running, so reset the "last_pager_check" watchdog timer so
1268          * that page_popup() doesn't try to open it a second time.
1269          */
1270         if (!strncasecmp(bstr("g_cmd"), "GEXP", 4)) {
1271                 WC->last_pager_check = time(NULL);
1272         }
1273 }
1274
1275
1276 /**
1277  * \brief Helper function for the asynchronous check to see if we need
1278  * to open the instant messenger window.
1279  */
1280 void seconds_since_last_gexp(void)
1281 {
1282         char buf[256];
1283
1284         begin_ajax_response();
1285         if ( (time(NULL) - WC->last_pager_check) < 30) {
1286                 wprintf("NO\n");
1287         }
1288         else {
1289                 serv_puts("NOOP");
1290                 serv_getln(buf, sizeof buf);
1291                 if (buf[3] == '*') {
1292                         wprintf("YES");
1293                 }
1294                 else {
1295                         wprintf("NO");
1296                 }
1297         }
1298         end_ajax_response();
1299 }
1300
1301
1302
1303
1304 /**
1305  * \brief Entry point for WebCit transaction
1306  */
1307 void session_loop(struct httprequest *req)
1308 {
1309         char cmd[1024];
1310         char action[1024];
1311         char arg[8][128];
1312         size_t sizes[10];
1313         char *index[10];
1314         char buf[SIZ];
1315         char request_method[128];
1316         char pathname[1024];
1317         int a, b, nBackDots, nEmpty;
1318         int ContentLength = 0;
1319         int BytesRead = 0;
1320         char ContentType[512];
1321         char *content = NULL;
1322         char *content_end = NULL;
1323         struct httprequest *hptr;
1324         char browser_host[256];
1325         char user_agent[256];
1326         int body_start = 0;
1327         int is_static = 0;
1328         int n_static = 0;
1329         int len = 0;
1330         /**
1331          * We stuff these with the values coming from the client cookies,
1332          * so we can use them to reconnect a timed out session if we have to.
1333          */
1334         char c_username[SIZ];
1335         char c_password[SIZ];
1336         char c_roomname[SIZ];
1337         char c_httpauth_string[SIZ];
1338         char c_httpauth_user[SIZ];
1339         char c_httpauth_pass[SIZ];
1340         char cookie[SIZ];
1341
1342         safestrncpy(c_username, "", sizeof c_username);
1343         safestrncpy(c_password, "", sizeof c_password);
1344         safestrncpy(c_roomname, "", sizeof c_roomname);
1345         safestrncpy(c_httpauth_string, "", sizeof c_httpauth_string);
1346         safestrncpy(c_httpauth_user, DEFAULT_HTTPAUTH_USER, sizeof c_httpauth_user);
1347         safestrncpy(c_httpauth_pass, DEFAULT_HTTPAUTH_PASS, sizeof c_httpauth_pass);
1348         strcpy(browser_host, "");
1349
1350         WC->upload_length = 0;
1351         WC->upload = NULL;
1352         WC->vars = NULL;
1353         WC->is_wap = 0;
1354
1355         hptr = req;
1356         if (hptr == NULL) return;
1357
1358         safestrncpy(cmd, hptr->line, sizeof cmd);
1359         hptr = hptr->next;
1360         extract_token(request_method, cmd, 0, ' ', sizeof request_method);
1361         extract_token(pathname, cmd, 1, ' ', sizeof pathname);
1362
1363         /** Figure out the action */
1364         index[0] = action;
1365         sizes[0] = sizeof action;
1366         for (a=1; a<9; a++)
1367         {
1368                 index[a] = arg[a-1];
1369                 sizes[a] = sizeof arg[a-1];
1370         }
1371 ////    index[9] = &foo; todo
1372         nBackDots = 0;
1373         nEmpty = 0;
1374         for ( a = 0; a < 9; ++a)
1375         {
1376                 extract_token(index[a], pathname, a + 1, '/', sizes[a]);
1377                 if (strstr(index[a], "?")) *strstr(index[a], "?") = 0;
1378                 if (strstr(index[a], "&")) *strstr(index[a], "&") = 0;
1379                 if (strstr(index[a], " ")) *strstr(index[a], " ") = 0;
1380                 if ((index[a][0] == '.') && (index[a][1] == '.'))
1381                         nBackDots++;
1382                 if (index[a][0] == '\0')
1383                         nEmpty++;
1384         }
1385
1386         while (hptr != NULL) {
1387                 safestrncpy(buf, hptr->line, sizeof buf);
1388                 /* lprintf(9, "HTTP HEADER: %s\n", buf); */
1389                 hptr = hptr->next;
1390
1391                 if (!strncasecmp(buf, "Cookie: webcit=", 15)) {
1392                         safestrncpy(cookie, &buf[15], sizeof cookie);
1393                         cookie_to_stuff(cookie, NULL,
1394                                         c_username, sizeof c_username,
1395                                         c_password, sizeof c_password,
1396                                         c_roomname, sizeof c_roomname);
1397                 }
1398                 else if (!strncasecmp(buf, "Authorization: Basic ", 21)) {
1399                         CtdlDecodeBase64(c_httpauth_string, &buf[21], strlen(&buf[21]));
1400                         extract_token(c_httpauth_user, c_httpauth_string, 0, ':', sizeof c_httpauth_user);
1401                         extract_token(c_httpauth_pass, c_httpauth_string, 1, ':', sizeof c_httpauth_pass);
1402                 }
1403                 else if (!strncasecmp(buf, "Content-length: ", 16)) {
1404                         ContentLength = atoi(&buf[16]);
1405                 }
1406                 else if (!strncasecmp(buf, "Content-type: ", 14)) {
1407                         safestrncpy(ContentType, &buf[14], sizeof ContentType);
1408                 }
1409                 else if (!strncasecmp(buf, "User-agent: ", 12)) {
1410                         safestrncpy(user_agent, &buf[12], sizeof user_agent);
1411                 }
1412                 else if (!strncasecmp(buf, "X-Forwarded-Host: ", 18)) {
1413                         if (follow_xff) {
1414                                 safestrncpy(WC->http_host, &buf[18], sizeof WC->http_host);
1415                         }
1416                 }
1417                 else if (!strncasecmp(buf, "Host: ", 6)) {
1418                         if (IsEmptyStr(WC->http_host)) {
1419                                 safestrncpy(WC->http_host, &buf[6], sizeof WC->http_host);
1420                         }
1421                 }
1422                 else if (!strncasecmp(buf, "X-Forwarded-For: ", 17)) {
1423                         safestrncpy(browser_host, &buf[17], sizeof browser_host);
1424                         while (num_tokens(browser_host, ',') > 1) {
1425                                 remove_token(browser_host, 0, ',');
1426                         }
1427                         striplt(browser_host);
1428                 }
1429                 /** Only WAP gateways explicitly name this content-type */
1430                 else if (strstr(buf, "text/vnd.wap.wml")) {
1431                         WC->is_wap = 1;
1432                 }
1433         }
1434
1435         if (ContentLength > 0) {
1436                 content = malloc(ContentLength + SIZ);
1437                 memset(content, 0, ContentLength + SIZ);
1438                 snprintf(content,  ContentLength + SIZ, "Content-type: %s\n"
1439                                 "Content-length: %d\n\n",
1440                                 ContentType, ContentLength);
1441                 body_start = strlen(content);
1442
1443                 /** Read the entire input data at once. */
1444                 client_read(WC->http_sock, &content[BytesRead+body_start], ContentLength);
1445
1446                 if (!strncasecmp(ContentType, "application/x-www-form-urlencoded", 33)) {
1447                         addurls(&content[body_start]);
1448                 } else if (!strncasecmp(ContentType, "multipart", 9)) {
1449                         content_end = content + ContentLength + body_start;
1450                         mime_parser(content, content_end, *upload_handler, NULL, NULL, NULL, 0);
1451                 }
1452         } else {
1453                 content = NULL;
1454         }
1455
1456         /** make a note of where we are in case the user wants to save it */
1457         safestrncpy(WC->this_page, cmd, sizeof(WC->this_page));
1458         remove_token(WC->this_page, 2, ' ');
1459         remove_token(WC->this_page, 0, ' ');
1460
1461         /** If there are variables in the URL, we must grab them now */
1462         len = strlen(cmd);
1463         for (a = 0; a < len; ++a) {
1464                 if ((cmd[a] == '?') || (cmd[a] == '&')) {
1465                         for (b = a; b < len; ++b) {
1466                                 if (isspace(cmd[b])){
1467                                         cmd[b] = 0;
1468                                         len = b - 1;
1469                                 }
1470                         }
1471                         addurls(&cmd[a + 1]);
1472                         cmd[a] = 0;
1473                         len = a - 1;
1474                 }
1475         }
1476
1477         /** If it's a "force 404" situation then display the error and bail. */
1478         if (!strcmp(action, "404")) {
1479                 wprintf("HTTP/1.1 404 Not found\r\n");
1480                 wprintf("Content-Type: text/plain\r\n");
1481                 wprintf("\r\n");
1482                 wprintf("Not found\r\n");
1483                 goto SKIP_ALL_THIS_CRAP;
1484         }
1485
1486         /** Static content can be sent without connecting to Citadel. */
1487         is_static = 0;
1488         for (a=0; a<ndirs; ++a) {
1489                 if (!strcasecmp(action, (char*)static_content_dirs[a])) { /* map web to disk location */
1490                         is_static = 1;
1491                         n_static = a;
1492                 }
1493         }
1494         if (is_static) {
1495                 if (nBackDots < 2)
1496                 {
1497                         snprintf(buf, sizeof buf, "%s/%s/%s/%s/%s/%s/%s/%s",
1498                                  static_dirs[n_static],
1499                                  index[1], index[2], index[3], index[4], index[5], index[6], index[7]);
1500                         for (a=0; a<8; ++a) {
1501                                 if (buf[strlen(buf)-1] == '/') {
1502                                         buf[strlen(buf)-1] = 0;
1503                                 }
1504                         }
1505                         for (a = 0; a < strlen(buf); ++a) {
1506                                 if (isspace(buf[a])) {
1507                                         buf[a] = 0;
1508                                 }
1509                         }
1510                         output_static(buf);
1511                 }
1512                 else
1513                 {
1514                         lprintf(9, "Suspicious request. Ignoring.");
1515                         wprintf("HTTP/1.1 404 Security check failed\r\n");
1516                         wprintf("Content-Type: text/plain\r\n");
1517                         wprintf("\r\n");
1518                         wprintf("You have sent a malformed or invalid request.\r\n");
1519                 }
1520                 goto SKIP_ALL_THIS_CRAP;        /* Don't try to connect */
1521         }
1522
1523         /* If the client sent a nonce that is incorrect, kill the request. */
1524         if (strlen(bstr("nonce")) > 0) {
1525                 lprintf(9, "Comparing supplied nonce %s to session nonce %ld\n",
1526                         bstr("nonce"), WC->nonce);
1527                 if (ibstr("nonce") != WC->nonce) {
1528                         lprintf(9, "Ignoring request with mismatched nonce.\n");
1529                         wprintf("HTTP/1.1 404 Security check failed\r\n");
1530                         wprintf("Content-Type: text/plain\r\n");
1531                         wprintf("\r\n");
1532                         wprintf("Security check failed.\r\n");
1533                         goto SKIP_ALL_THIS_CRAP;
1534                 }
1535         }
1536
1537         /**
1538          * If we're not connected to a Citadel server, try to hook up the
1539          * connection now.
1540          */
1541         if (!WC->connected) {
1542                 if (!strcasecmp(ctdlhost, "uds")) {
1543                         /* unix domain socket */
1544                         snprintf(buf, SIZ, "%s/citadel.socket", ctdlport);
1545                         WC->serv_sock = uds_connectsock(buf);
1546                 }
1547                 else {
1548                         /* tcp socket */
1549                         WC->serv_sock = tcp_connectsock(ctdlhost, ctdlport);
1550                 }
1551
1552                 if (WC->serv_sock < 0) {
1553                         do_logout();
1554                         goto SKIP_ALL_THIS_CRAP;
1555                 }
1556                 else {
1557                         WC->connected = 1;
1558                         serv_getln(buf, sizeof buf);    /** get the server welcome message */
1559
1560                         /**
1561                          * From what host is our user connecting?  Go with
1562                          * the host at the other end of the HTTP socket,
1563                          * unless we are following X-Forwarded-For: headers
1564                          * and such a header has already turned up something.
1565                          */
1566                         if ( (!follow_xff) || (strlen(browser_host) == 0) ) {
1567                                 locate_host(browser_host, WC->http_sock);
1568                         }
1569
1570                         get_serv_info(browser_host, user_agent);
1571                         if (serv_info.serv_rev_level < MINIMUM_CIT_VERSION) {
1572                                 wprintf(_("You are connected to a Citadel "
1573                                         "server running Citadel %d.%02d. \n"
1574                                         "In order to run this version of WebCit "
1575                                         "you must also have Citadel %d.%02d or"
1576                                         " newer.\n\n\n"),
1577                                                 serv_info.serv_rev_level / 100,
1578                                                 serv_info.serv_rev_level % 100,
1579                                                 MINIMUM_CIT_VERSION / 100,
1580                                                 MINIMUM_CIT_VERSION % 100
1581                                         );
1582                                 end_webcit_session();
1583                                 goto SKIP_ALL_THIS_CRAP;
1584                         }
1585                 }
1586         }
1587
1588         /**
1589          * Functions which can be performed without logging in
1590          */
1591         if (!strcasecmp(action, "listsub")) {
1592                 do_listsub();
1593                 goto SKIP_ALL_THIS_CRAP;
1594         }
1595         if (!strcasecmp(action, "freebusy")) {
1596                 do_freebusy(cmd);
1597                 goto SKIP_ALL_THIS_CRAP;
1598         }
1599
1600         /**
1601          * If we're not logged in, but we have HTTP Authentication data,
1602          * try logging in to Citadel using that.
1603          */
1604         if ((!WC->logged_in)
1605            && (strlen(c_httpauth_user) > 0)
1606            && (strlen(c_httpauth_pass) > 0)) {
1607                 serv_printf("USER %s", c_httpauth_user);
1608                 serv_getln(buf, sizeof buf);
1609                 if (buf[0] == '3') {
1610                         serv_printf("PASS %s", c_httpauth_pass);
1611                         serv_getln(buf, sizeof buf);
1612                         if (buf[0] == '2') {
1613                                 become_logged_in(c_httpauth_user,
1614                                                 c_httpauth_pass, buf);
1615                                 safestrncpy(WC->httpauth_user, c_httpauth_user, sizeof WC->httpauth_user);
1616                                 safestrncpy(WC->httpauth_pass, c_httpauth_pass, sizeof WC->httpauth_pass);
1617                         } else {
1618                                 /** Should only display when password is wrong */
1619                                 authorization_required(&buf[4]);
1620                                 goto SKIP_ALL_THIS_CRAP;
1621                         }
1622                 }
1623         }
1624
1625         /** This needs to run early */
1626 #ifdef TECH_PREVIEW
1627         if (!strcasecmp(action, "rss")) {
1628                 display_rss(bstr("room"), request_method);
1629                 goto SKIP_ALL_THIS_CRAP;
1630         }
1631 #endif
1632
1633         /**
1634          * The GroupDAV stuff relies on HTTP authentication instead of
1635          * our session's authentication.
1636          */
1637         if (!strncasecmp(action, "groupdav", 8)) {
1638                 groupdav_main(req, ContentType, /* do GroupDAV methods */
1639                         ContentLength, content+body_start);
1640                 if (!WC->logged_in) {
1641                         WC->killthis = 1;       /* If not logged in, don't */
1642                 }                               /* keep the session active */
1643                 goto SKIP_ALL_THIS_CRAP;
1644         }
1645
1646
1647         /**
1648          * Automatically send requests with any method other than GET or
1649          * POST to the GroupDAV code as well.
1650          */
1651         if ((strcasecmp(request_method, "GET")) && (strcasecmp(request_method, "POST"))) {
1652                 groupdav_main(req, ContentType, /** do GroupDAV methods */
1653                         ContentLength, content+body_start);
1654                 if (!WC->logged_in) {
1655                         WC->killthis = 1;       /** If not logged in, don't */
1656                 }                               /** keep the session active */
1657                 goto SKIP_ALL_THIS_CRAP;
1658         }
1659
1660         /**
1661          * If we're not logged in, but we have username and password cookies
1662          * supplied by the browser, try using them to log in.
1663          */
1664         if ((!WC->logged_in)
1665            && (!IsEmptyStr(c_username))
1666            && (!IsEmptyStr(c_password))) {
1667                 serv_printf("USER %s", c_username);
1668                 serv_getln(buf, sizeof buf);
1669                 if (buf[0] == '3') {
1670                         serv_printf("PASS %s", c_password);
1671                         serv_getln(buf, sizeof buf);
1672                         if (buf[0] == '2') {
1673                                 become_logged_in(c_username, c_password, buf);
1674                         }
1675                 }
1676         }
1677         /**
1678          * If we don't have a current room, but a cookie specifying the
1679          * current room is supplied, make an effort to go there.
1680          */
1681         if ((IsEmptyStr(WC->wc_roomname)) && (!IsEmptyStr(c_roomname))) {
1682                 serv_printf("GOTO %s", c_roomname);
1683                 serv_getln(buf, sizeof buf);
1684                 if (buf[0] == '2') {
1685                         safestrncpy(WC->wc_roomname, c_roomname, sizeof WC->wc_roomname);
1686                 }
1687         }
1688
1689         if (!strcasecmp(action, "image")) {
1690                 output_image();
1691         } else if (!strcasecmp(action, "display_mime_icon")) {
1692                 display_mime_icon();
1693
1694                 /**
1695                  * All functions handled below this point ... make sure we log in
1696                  * before doing anything else!
1697                  */
1698         } else if ((!WC->logged_in) && (!strcasecmp(action, "login"))) {
1699                 do_login();
1700         } else if (!WC->logged_in) {
1701                 display_login(NULL);
1702         }
1703
1704         /**
1705          * Various commands...
1706          */
1707
1708
1709         else if (!strcasecmp(action, "do_welcome")) {
1710                 do_welcome();
1711         } else if (!strcasecmp(action, "blank")) {
1712                 blank_page();
1713         } else if (!strcasecmp(action, "do_template")) {
1714                 url_do_template();
1715         } else if (!strcasecmp(action, "display_aide_menu")) {
1716                 display_aide_menu();
1717         } else if (!strcasecmp(action, "server_shutdown")) {
1718                 display_shutdown();
1719         } else if (!strcasecmp(action, "display_main_menu")) {
1720                 display_main_menu();
1721         } else if (!strcasecmp(action, "who")) {
1722                 who();
1723         } else if (!strcasecmp(action, "sslg")) {
1724                 seconds_since_last_gexp();
1725         } else if (!strcasecmp(action, "who_inner_html")) {
1726                 begin_ajax_response();
1727                 who_inner_div();
1728                 end_ajax_response();
1729         } else if (!strcasecmp(action, "wholist_section")) {
1730                 begin_ajax_response();
1731                 wholist_section();
1732                 end_ajax_response();
1733         } else if (!strcasecmp(action, "new_messages_html")) {
1734                 begin_ajax_response();
1735                 new_messages_section();
1736                 end_ajax_response();
1737         } else if (!strcasecmp(action, "tasks_inner_html")) {
1738                 begin_ajax_response();
1739                 tasks_section();
1740                 end_ajax_response();
1741         } else if (!strcasecmp(action, "calendar_inner_html")) {
1742                 begin_ajax_response();
1743                 calendar_section();
1744                 end_ajax_response();
1745         } else if (!strcasecmp(action, "mini_calendar")) {
1746                 begin_ajax_response();
1747                 ajax_mini_calendar();
1748                 end_ajax_response();
1749         } else if (!strcasecmp(action, "iconbar_ajax_menu")) {
1750                 begin_ajax_response();
1751                 do_iconbar();
1752                 end_ajax_response();
1753         } else if (!strcasecmp(action, "iconbar_ajax_rooms")) {
1754                 begin_ajax_response();
1755                 do_iconbar_roomlist();
1756                 end_ajax_response();
1757         } else if (!strcasecmp(action, "knrooms")) {
1758                 knrooms();
1759         } else if (!strcasecmp(action, "gotonext")) {
1760                 slrp_highest();
1761                 gotonext();
1762         } else if (!strcasecmp(action, "skip")) {
1763                 gotonext();
1764         } else if (!strcasecmp(action, "ungoto")) {
1765                 ungoto();
1766         } else if (!strcasecmp(action, "dotgoto")) {
1767                 if (WC->wc_view != VIEW_MAILBOX) {      /* dotgoto acts like dotskip when we're in a mailbox view */
1768                         slrp_highest();
1769                 }
1770                 smart_goto(bstr("room"));
1771         } else if (!strcasecmp(action, "dotskip")) {
1772                 smart_goto(bstr("room"));
1773         } else if (!strcasecmp(action, "termquit")) {
1774                 do_logout();
1775         } else if (!strcasecmp(action, "readnew")) {
1776                 readloop("readnew");
1777         } else if (!strcasecmp(action, "readold")) {
1778                 readloop("readold");
1779         } else if (!strcasecmp(action, "readfwd")) {
1780                 readloop("readfwd");
1781         } else if (!strcasecmp(action, "headers")) {
1782                 readloop("headers");
1783         } else if (!strcasecmp(action, "do_search")) {
1784                 readloop("do_search");
1785         } else if (!strcasecmp(action, "msg")) {
1786                 embed_message(index[1]);
1787         } else if (!strcasecmp(action, "printmsg")) {
1788                 print_message(index[1]);
1789         } else if (!strcasecmp(action, "msgheaders")) {
1790                 display_headers(index[1]);
1791         } else if (!strcasecmp(action, "wiki")) {
1792                 display_wiki_page();
1793         } else if (!strcasecmp(action, "display_enter")) {
1794                 display_enter();
1795         } else if (!strcasecmp(action, "post")) {
1796                 post_message();
1797         } else if (!strcasecmp(action, "move_msg")) {
1798                 move_msg();
1799         } else if (!strcasecmp(action, "delete_msg")) {
1800                 delete_msg();
1801         } else if (!strcasecmp(action, "userlist")) {
1802                 userlist();
1803         } else if (!strcasecmp(action, "showuser")) {
1804                 showuser();
1805         } else if (!strcasecmp(action, "display_page")) {
1806                 display_page();
1807         } else if (!strcasecmp(action, "page_user")) {
1808                 page_user();
1809         } else if (!strcasecmp(action, "chat")) {
1810                 do_chat();
1811         } else if (!strcasecmp(action, "display_private")) {
1812                 display_private("", 0);
1813         } else if (!strcasecmp(action, "goto_private")) {
1814                 goto_private();
1815         } else if (!strcasecmp(action, "zapped_list")) {
1816                 zapped_list();
1817         } else if (!strcasecmp(action, "display_zap")) {
1818                 display_zap();
1819         } else if (!strcasecmp(action, "zap")) {
1820                 zap();
1821         } else if (!strcasecmp(action, "display_entroom")) {
1822                 display_entroom();
1823         } else if (!strcasecmp(action, "entroom")) {
1824                 entroom();
1825         } else if (!strcasecmp(action, "display_whok")) {
1826                 display_whok();
1827         } else if (!strcasecmp(action, "do_invt_kick")) {
1828                 do_invt_kick();
1829         } else if (!strcasecmp(action, "display_editroom")) {
1830                 display_editroom();
1831         } else if (!strcasecmp(action, "netedit")) {
1832                 netedit();
1833         } else if (!strcasecmp(action, "editroom")) {
1834                 editroom();
1835         } else if (!strcasecmp(action, "display_editinfo")) {
1836                 display_edit(_("Room info"), "EINF 0", "RINF", "editinfo", 1);
1837         } else if (!strcasecmp(action, "editinfo")) {
1838                 save_edit(_("Room info"), "EINF 1", 1);
1839         } else if (!strcasecmp(action, "display_editbio")) {
1840                 snprintf(buf, SIZ, "RBIO %s", WC->wc_fullname);
1841                 display_edit(_("Your bio"), "NOOP", buf, "editbio", 3);
1842         } else if (!strcasecmp(action, "editbio")) {
1843                 save_edit(_("Your bio"), "EBIO", 0);
1844         } else if (!strcasecmp(action, "confirm_move_msg")) {
1845                 confirm_move_msg();
1846         } else if (!strcasecmp(action, "delete_room")) {
1847                 delete_room();
1848         } else if (!strcasecmp(action, "validate")) {
1849                 validate();
1850                 /* The users photo display / upload facility */
1851         } else if (!strcasecmp(action, "display_editpic")) {
1852                 display_graphics_upload(_("your photo"),
1853                                         "_userpic_",
1854                                         "editpic");
1855         } else if (!strcasecmp(action, "editpic")) {
1856                 do_graphics_upload("_userpic_");
1857                 /* room picture dispay / upload facility */
1858         } else if (!strcasecmp(action, "display_editroompic")) {
1859                 display_graphics_upload(_("the icon for this room"),
1860                                         "_roompic_",
1861                                         "editroompic");
1862         } else if (!strcasecmp(action, "editroompic")) {
1863                 do_graphics_upload("_roompic_");
1864                 /* the greetingpage hello pic */
1865         } else if (!strcasecmp(action, "display_edithello")) {
1866                 display_graphics_upload(_("the Greetingpicture for the login prompt"),
1867                                         "hello",
1868                                         "edithellopic");
1869         } else if (!strcasecmp(action, "edithellopic")) {
1870                 do_graphics_upload("hello");
1871                 /* the logoff banner */
1872         } else if (!strcasecmp(action, "display_editgoodbyepic")) {
1873                 display_graphics_upload(_("the Logoff banner picture"),
1874                                         "UIMG 0|%s|goodbuye",
1875                                         "editgoodbuyepic");
1876         } else if (!strcasecmp(action, "editgoodbuyepic")) {
1877                 do_graphics_upload("UIMG 1|%s|goodbuye");
1878
1879         } else if (!strcasecmp(action, "delete_floor")) {
1880                 delete_floor();
1881         } else if (!strcasecmp(action, "rename_floor")) {
1882                 rename_floor();
1883         } else if (!strcasecmp(action, "create_floor")) {
1884                 create_floor();
1885         } else if (!strcasecmp(action, "display_editfloorpic")) {
1886                 snprintf(buf, SIZ, "UIMG 0|_floorpic_|%s",
1887                         bstr("which_floor"));
1888                 display_graphics_upload(_("the icon for this floor"),
1889                                         buf,
1890                                         "editfloorpic");
1891         } else if (!strcasecmp(action, "editfloorpic")) {
1892                 snprintf(buf, SIZ, "UIMG 1|_floorpic_|%s",
1893                         bstr("which_floor"));
1894                 do_graphics_upload(buf);
1895         } else if (!strcasecmp(action, "display_reg")) {
1896                 display_reg(0);
1897         } else if (!strcasecmp(action, "display_changepw")) {
1898                 display_changepw();
1899         } else if (!strcasecmp(action, "changepw")) {
1900                 changepw();
1901         } else if (!strcasecmp(action, "display_edit_node")) {
1902                 display_edit_node();
1903         } else if (!strcasecmp(action, "edit_node")) {
1904                 edit_node();
1905         } else if (!strcasecmp(action, "display_netconf")) {
1906                 display_netconf();
1907         } else if (!strcasecmp(action, "display_confirm_delete_node")) {
1908                 display_confirm_delete_node();
1909         } else if (!strcasecmp(action, "delete_node")) {
1910                 delete_node();
1911         } else if (!strcasecmp(action, "display_add_node")) {
1912                 display_add_node();
1913         } else if (!strcasecmp(action, "terminate_session")) {
1914                 slrp_highest();
1915                 terminate_session();
1916         } else if (!strcasecmp(action, "edit_me")) {
1917                 edit_me();
1918         } else if (!strcasecmp(action, "display_siteconfig")) {
1919                 display_siteconfig();
1920         } else if (!strcasecmp(action, "chat_recv")) {
1921                 chat_recv();
1922         } else if (!strcasecmp(action, "chat_send")) {
1923                 chat_send();
1924         } else if (!strcasecmp(action, "siteconfig")) {
1925                 siteconfig();
1926         } else if (!strcasecmp(action, "display_generic")) {
1927                 display_generic();
1928         } else if (!strcasecmp(action, "do_generic")) {
1929                 do_generic();
1930         } else if (!strcasecmp(action, "ajax_servcmd")) {
1931                 ajax_servcmd();
1932         } else if (!strcasecmp(action, "display_menubar")) {
1933                 display_menubar(1);
1934         } else if (!strcasecmp(action, "mimepart")) {
1935                 mimepart(index[1], index[2], 0);
1936         } else if (!strcasecmp(action, "mimepart_download")) {
1937                 mimepart(index[1], index[2], 1);
1938         } else if (!strcasecmp(action, "edit_vcard")) {
1939                 edit_vcard();
1940         } else if (!strcasecmp(action, "submit_vcard")) {
1941                 submit_vcard();
1942         } else if (!strcasecmp(action, "select_user_to_edit")) {
1943                 select_user_to_edit(NULL, NULL);
1944         } else if (!strcasecmp(action, "display_edituser")) {
1945                 display_edituser(NULL, 0);
1946         } else if (!strcasecmp(action, "edituser")) {
1947                 edituser();
1948         } else if (!strcasecmp(action, "create_user")) {
1949                 create_user();
1950         } else if (!strcasecmp(action, "changeview")) {
1951                 change_view();
1952         } else if (!strcasecmp(action, "change_start_page")) {
1953                 change_start_page();
1954         } else if (!strcasecmp(action, "display_floorconfig")) {
1955                 display_floorconfig(NULL);
1956         } else if (!strcasecmp(action, "toggle_self_service")) {
1957                 toggle_self_service();
1958         } else if (!strcasecmp(action, "display_edit_task")) {
1959                 display_edit_task();
1960         } else if (!strcasecmp(action, "save_task")) {
1961                 save_task();
1962         } else if (!strcasecmp(action, "display_edit_event")) {
1963                 display_edit_event();
1964         } else if (!strcasecmp(action, "save_event")) {
1965                 save_event();
1966         } else if (!strcasecmp(action, "respond_to_request")) {
1967                 respond_to_request();
1968         } else if (!strcasecmp(action, "handle_rsvp")) {
1969                 handle_rsvp();
1970         } else if (!strcasecmp(action, "summary")) {
1971                 summary();
1972         } else if (!strcasecmp(action, "summary_inner_div")) {
1973                 begin_ajax_response();
1974                 summary_inner_div();
1975                 end_ajax_response();
1976         } else if (!strcasecmp(action, "display_customize_iconbar")) {
1977                 display_customize_iconbar();
1978         } else if (!strcasecmp(action, "commit_iconbar")) {
1979                 commit_iconbar();
1980         } else if (!strcasecmp(action, "set_room_policy")) {
1981                 set_room_policy();
1982         } else if (!strcasecmp(action, "display_inetconf")) {
1983                 display_inetconf();
1984         } else if (!strcasecmp(action, "save_inetconf")) {
1985                 save_inetconf();
1986         } else if (!strcasecmp(action, "display_smtpqueue")) {
1987                 display_smtpqueue();
1988         } else if (!strcasecmp(action, "display_smtpqueue_inner_div")) {
1989                 display_smtpqueue_inner_div();
1990         } else if (!strcasecmp(action, "display_sieve")) {
1991                 display_sieve();
1992         } else if (!strcasecmp(action, "save_sieve")) {
1993                 save_sieve();
1994         } else if (!strcasecmp(action, "display_pushemail")) {
1995                 display_pushemail();
1996         } else if (!strcasecmp(action, "save_pushemail")) {
1997                 save_pushemail();
1998         } else if (!strcasecmp(action, "display_add_remove_scripts")) {
1999                 display_add_remove_scripts(NULL);
2000         } else if (!strcasecmp(action, "create_script")) {
2001                 create_script();
2002         } else if (!strcasecmp(action, "delete_script")) {
2003                 delete_script();
2004         } else if (!strcasecmp(action, "setup_wizard")) {
2005                 do_setup_wizard();
2006         } else if (!strcasecmp(action, "display_preferences")) {
2007                 display_preferences();
2008         } else if (!strcasecmp(action, "set_preferences")) {
2009                 set_preferences();
2010         } else if (!strcasecmp(action, "recp_autocomplete")) {
2011                 recp_autocomplete(bstr("recp"));
2012         } else if (!strcasecmp(action, "cc_autocomplete")) {
2013                 recp_autocomplete(bstr("cc"));
2014         } else if (!strcasecmp(action, "bcc_autocomplete")) {
2015                 recp_autocomplete(bstr("bcc"));
2016         } else if (!strcasecmp(action, "display_address_book_middle_div")) {
2017                 display_address_book_middle_div();
2018         } else if (!strcasecmp(action, "display_address_book_inner_div")) {
2019                 display_address_book_inner_div();
2020         } else if (!strcasecmp(action, "set_floordiv_expanded")) {
2021                 set_floordiv_expanded(index[1]);
2022         } else if (!strcasecmp(action, "diagnostics")) {
2023                 output_headers(1, 1, 1, 0, 0, 0);
2024                 wprintf("Session: %d<hr />\n", WC->wc_session);
2025                 wprintf("Command: <br /><PRE>\n");
2026                 escputs(cmd);
2027                 wprintf("</PRE><hr />\n");
2028                 wprintf("Variables: <br /><PRE>\n");
2029                 dump_vars();
2030                 wprintf("</PRE><hr />\n");
2031                 wDumpContent(1);
2032         } else if (!strcasecmp(action, "updatenote")) {
2033                 updatenote();
2034         } else if (!strcasecmp(action, "display_room_directory")) {
2035                 display_room_directory();
2036         } else if (!strcasecmp(action, "display_pictureview")) {
2037                 display_pictureview();
2038         } else if (!strcasecmp(action, "download_file")) {
2039                 download_file(index[1]);
2040         } else if (!strcasecmp(action, "upload_file")) {
2041                 upload_file();
2042         }
2043
2044         /** When all else fais, display the main menu. */
2045         else {
2046                 display_main_menu();
2047         }
2048 }
2049 SKIP_ALL_THIS_CRAP:
2050         fflush(stdout);
2051         if (content != NULL) {
2052                 free(content);
2053                 content = NULL;
2054         }
2055         free_urls();
2056         if (WC->upload_length > 0) {
2057                 free(WC->upload);
2058                 WC->upload_length = 0;
2059         }
2060 }
2061
2062 /**
2063  * \brief Replacement for sleep() that uses select() in order to avoid SIGALRM
2064  * \param seconds how many seconds should we sleep?
2065  */
2066 void sleeeeeeeeeep(int seconds)
2067 {
2068         struct timeval tv;
2069
2070         tv.tv_sec = seconds;
2071         tv.tv_usec = 0;
2072         select(0, NULL, NULL, NULL, &tv);
2073 }
2074
2075
2076 /*@}*/