webcit/webcit.c

   1 /*
   2  * webcit.c
   3  *
   4  * This is the actual program called by the webserver.  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  * $Id$
   9  */
  10
  11 #include <stdlib.h>
  12 #ifdef HAVE_UNISTD_H
  13 #include <unistd.h>
  14 #endif
  15 #include <stdio.h>
  16 #include <ctype.h>
  17 #include <string.h>
  18 #include <errno.h>
  19 #include <sys/stat.h>
  20 #include <stdarg.h>
  21 #include "webcit.h"
  22 #include "child.h"
  23 #include "mime_parser.h"
  24
  25 int wc_session;
  26 char wc_username[256];
  27 char wc_password[256];
  28 char wc_roomname[256];
  29 int TransactionCount = 0;
  30 int connected = 0;
  31 int logged_in = 0;
  32 int axlevel;
  33 char *ExpressMessages = NULL;
  34 int noframes = 0;
  35
  36 struct webcontent *wlist = NULL;
  37 struct webcontent *wlast = NULL;
  38
  39 struct urlcontent *urlstrings = NULL;
  40
  41 static const char *defaulthost = DEFAULT_HOST;
  42 static const char *defaultport = DEFAULT_PORT;
  43
  44 int upload_length = 0;
  45 char *upload;
  46
  47
  48 void unescape_input(char *buf)
  49 {
  50         int a,b;
  51         char hex[3];
  52
  53         while ((isspace(buf[strlen(buf)-1]))&&(strlen(buf)>0))
  54                 buf[strlen(buf)-1] = 0;
  55
  56         for (a=0; a<strlen(buf); ++a) {
  57                 if (buf[a]=='+') buf[a]=' ';
  58                 if (buf[a]=='%') {
  59                         hex[0]=buf[a+1];
  60                         hex[1]=buf[a+2];
  61                         hex[2]=0;
  62                         sscanf(hex,"%02x",&b);
  63                         buf[a] = (char) b;
  64                         strcpy(&buf[a+1],&buf[a+3]);
  65                         }
  66                 }
  67
  68         }
  69
  70
  71 void addurls(char *url) {
  72         char *up, *ptr;
  73         char buf[256];
  74         int a,b;
  75         struct urlcontent *u;
  76
  77         up = url;
  78         while (strlen(up)>0) {
  79
  80                 /* locate the = sign */
  81                 strncpy(buf,up,255);
  82                 b = (-1);
  83                 for (a=255; a>=0; --a) if (buf[a]=='=') b=a;
  84                 if (b<0) return;
  85                 buf[b]=0;
  86
  87                 u = (struct urlcontent *)malloc(sizeof(struct urlcontent));
  88                 u->next = urlstrings;
  89                 urlstrings = u;
  90                 strcpy(u->url_key, buf);
  91
  92                 /* now chop that part off */
  93                 for (a=0; a<=b; ++a) ++up;
  94
  95                 /* locate the & sign */
  96                 ptr = up;
  97                 b = strlen(up);
  98                 for (a=0; a<strlen(up); ++a) {
  99                         if (!strncmp(ptr,"&",1)) {
 100                                 b=a;
 101                                 break;
 102                                 }
 103                         ++ptr;
 104                         }
 105                 ptr = up;
 106                 for (a=0; a<b; ++a) ++ptr;
 107                 strcpy(ptr,"");
 108
 109                 u->url_data = malloc(strlen(up)+1);
 110                 strcpy(u->url_data, up);
 111                 u->url_data[b] = 0;
 112                 unescape_input(u->url_data);
 113                 up = ptr;
 114                 ++up;
 115                 }
 116         }
 117
 118 void free_urls(void) {
 119         struct urlcontent *u;
 120
 121         while (urlstrings != NULL) {
 122                 free(urlstrings->url_data);
 123                 u = urlstrings->next;
 124                 free(urlstrings);
 125                 urlstrings = u;
 126                 }
 127         }
 128
 129 /*
 130  * Diagnostic function to display the contents of all variables
 131  */
 132 void dump_vars(void) {
 133         struct urlcontent *u;
 134
 135         for (u = urlstrings; u != NULL; u = u->next) {
 136                 wprintf("%38s = %s\n", u->url_key, u->url_data);
 137                 }
 138         }
 139
 140 char *bstr(char *key) {
 141         struct urlcontent *u;
 142
 143         for (u = urlstrings; u != NULL; u = u->next) {
 144                 if (!strcasecmp(u->url_key, key)) return(u->url_data);
 145                 }
 146         return("");
 147         }
 148
 149
 150 void wprintf(const char *format, ...) {
 151         va_list arg_ptr;
 152         struct webcontent *wptr;
 153
 154         wptr = (struct webcontent *)malloc(sizeof(struct webcontent));
 155         wptr->next = NULL;
 156         if (wlist == NULL) {
 157                 wlist = wptr;
 158                 wlast = wptr;
 159                 }
 160         else {
 161                 wlast->next = wptr;
 162                 wlast = wptr;
 163                 }
 164
 165         va_start(arg_ptr, format);
 166         vsprintf(wptr->w_data, format, arg_ptr);
 167         va_end(arg_ptr);
 168         }
 169
 170 int wContentLength(void) {
 171         struct webcontent *wptr;
 172         int len = 0;
 173
 174         for (wptr = wlist; wptr != NULL; wptr = wptr->next) {
 175                 len = len + strlen(wptr->w_data);
 176                 }
 177
 178         return(len);
 179         }
 180
 181 void wDumpContent(int print_standard_html_footer) {
 182         struct webcontent *wptr;
 183
 184         if (print_standard_html_footer) {
 185                 if (noframes) {
 186                         wprintf("<BR>");
 187                         embed_main_menu();
 188                         }
 189                 wprintf("</BODY></HTML>\n");
 190                 }
 191
 192         printf("Content-type: text/html\n");
 193         printf("Content-length: %d\n", wContentLength());
 194         printf("\n");
 195
 196         while (wlist != NULL) {
 197                 fwrite(wlist->w_data, strlen(wlist->w_data), 1, stdout);
 198                 wptr = wlist->next;
 199                 free(wlist);
 200                 wlist = wptr;
 201                 }
 202         wlast = NULL;
 203         }
 204
 205
 206 void escputs1(char *strbuf, int nbsp)
 207 {
 208         int a;
 209
 210         for (a=0; a<strlen(strbuf); ++a) {
 211                 if (strbuf[a]=='<') wprintf("&lt;");
 212                 else if (strbuf[a]=='>') wprintf("&gt;");
 213                 else if (strbuf[a]=='&') wprintf("&amp;");
 214                 else if (strbuf[a]==34) wprintf("&quot;");
 215                 else if (strbuf[a]==LB) wprintf("<");
 216                 else if (strbuf[a]==RB) wprintf(">");
 217                 else if (strbuf[a]==QU) wprintf("\"");
 218                 else if ((strbuf[a]==32)&&(nbsp==1)) {
 219                         wprintf("&nbsp;");
 220                         }
 221                 else {
 222                         wprintf("%c", strbuf[a]);
 223                         }
 224                 }
 225         }
 226
 227 void escputs(char *strbuf)
 228 {
 229         escputs1(strbuf,0);
 230         }
 231
 232
 233
 234 char *urlesc(char *strbuf)
 235 {
 236         int a,b,c;
 237         char *ec = " #&;`'|*?-~<>^()[]{}$\\";
 238         static char outbuf[512];
 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]) c=1;
 246                         }
 247                 b = strlen(outbuf);
 248                 if (c==1) sprintf(&outbuf[b],"%%%02x",strbuf[a]);
 249                 else sprintf(&outbuf[b],"%c",strbuf[a]);
 250                 }
 251         return(outbuf);
 252         }
 253
 254 void urlescputs(char *strbuf)
 255 {
 256         wprintf("%s",urlesc(strbuf));
 257         }
 258
 259
 260 void getz(char *buf) {
 261         bzero(buf, 256);
 262         if (fgets(buf, 256, stdin) == NULL) strcpy(buf, "");
 263         else {
 264                 while ((strlen(buf)>0)&&(!isprint(buf[strlen(buf)-1])))
 265                         buf[strlen(buf)-1] = 0;
 266                 }
 267         }
 268
 269 /*
 270  * Output all that important stuff that the browser will want to see
 271  *
 272  * If print_standard_html_head is nonzero, we also get some standard HTML
 273  * headers.  If it's set to 2, the session is considered to be closing.
 274  */
 275 void output_headers(int print_standard_html_head, char *target) {
 276
 277         static char *unset = "; expires=28-May-1971 18:10:00 GMT";
 278         char cookie[256];
 279
 280         printf("Server: %s\n", SERVER);
 281         printf("Connection: close\n");
 282
 283         if ( (strlen(target)>0) && (noframes == 0) ) {
 284                 printf("Window-target: %s\n", target);
 285                 }
 286
 287
 288         if (print_standard_html_head > 0) {
 289                 printf("Pragma: no-cache\n");
 290                 printf("Cache-Control: no-store\n");
 291                 }
 292
 293         stuff_to_cookie(cookie, wc_session, wc_username, wc_password,
 294                         wc_roomname, noframes);
 295         if (print_standard_html_head==2) {
 296                 printf("X-WebCit-Session: close\n");
 297                 printf("Set-cookie: webcit=%s\n", unset);
 298                 }
 299         else {
 300                 printf("Set-cookie: webcit=%s\n", cookie);
 301                 }
 302
 303         if (print_standard_html_head > 0) {
 304                 wprintf("<HTML><HEAD><TITLE>");
 305                 escputs("WebCit");       /* FIX -- add BBS name here */
 306                 wprintf("</TITLE></HEAD>");
 307                 if (ExpressMessages != NULL) {
 308                         wprintf("<SCRIPT language=\"javascript\">\n");
 309                         wprintf("function ExpressMessage() {\n");
 310                         wprintf(" alert(\"");
 311                         escputs(ExpressMessages);
 312                         wprintf("\")\n");
 313                         wprintf(" }\n </SCRIPT>\n");
 314                         }
 315                 wprintf("<BODY ");
 316                 if (ExpressMessages != NULL) {
 317                         wprintf("onload=\"ExpressMessage()\" ");
 318                         free(ExpressMessages);
 319                         ExpressMessages = NULL;
 320                         }
 321                 wprintf("BACKGROUND=\"/image&name=background\" TEXT=\"#000000\" LINK=\"#004400\">\n");
 322                 }
 323
 324         }
 325
 326
 327
 328
 329 void check_for_express_messages() {
 330         char buf[256];
 331
 332         serv_puts("PEXP");
 333         serv_gets(buf);
 334         if (buf[0]=='1') {
 335                 while (serv_gets(buf), strcmp(buf, "000")) {
 336                         if (ExpressMessages == NULL) {
 337                                 ExpressMessages = malloc(strlen(buf) + 4);
 338                                 strcpy(ExpressMessages, "");
 339                                 }
 340                         else {
 341                                 ExpressMessages = realloc(ExpressMessages,
 342                                  (strlen(ExpressMessages) + strlen(buf) + 4) );
 343                                 }
 344                         strcat(ExpressMessages, buf);
 345                         strcat(ExpressMessages, "\\n");
 346                         }
 347                 }
 348         }
 349
 350
 351
 352
 353 void output_static(char *what) {
 354         char buf[256];
 355         FILE *fp;
 356         struct stat statbuf;
 357         off_t bytes;
 358
 359         sprintf(buf, "static/%s", what);
 360         fp = fopen(buf, "rb");
 361         if (fp == NULL) {
 362                 printf("HTTP/1.0 404 %s\n", strerror(errno));
 363                 output_headers(0, "");
 364                 printf("Content-Type: text/plain\n");
 365                 sprintf(buf, "%s: %s\n", what, strerror(errno));
 366                 printf("Content-length: %d\n", strlen(buf));
 367                 printf("\n");
 368                 fwrite(buf, strlen(buf), 1, stdout);
 369                 }
 370         else {
 371                 printf("HTTP/1.0 200 OK\n");
 372                 output_headers(0, "");
 373
 374                 if (!strncasecmp(&what[strlen(what)-4], ".gif", 4))
 375                         printf("Content-type: image/gif\n");
 376                 else if (!strncasecmp(&what[strlen(what)-4], ".jpg", 4))
 377                         printf("Content-type: image/jpeg\n");
 378                 else if (!strncasecmp(&what[strlen(what)-5], ".html", 5))
 379                         printf("Content-type: text/html\n");
 380                 else
 381                         printf("Content-type: application/octet-stream\n");
 382
 383                 fstat(fileno(fp), &statbuf);
 384                 bytes = statbuf.st_size;
 385                 printf("Content-length: %ld\n", (long)bytes);
 386                 printf("\n");
 387                 while (bytes--) {
 388                         putc(getc(fp), stdout);
 389                         }
 390                 fflush(stdout);
 391                 fclose(fp);
 392                 }
 393         }
 394
 395 void output_image() {
 396         char buf[256];
 397         char xferbuf[4096];
 398         off_t bytes;
 399         off_t thisblock;
 400         off_t accomplished = 0L;
 401
 402
 403         serv_printf("OIMG %s|%s", bstr("name"), bstr("parm"));
 404         serv_gets(buf);
 405         if (buf[0]=='2') {
 406                 bytes = extract_long(&buf[4], 0);
 407                 printf("HTTP/1.0 200 OK\n");
 408                 output_headers(0, "");
 409                 printf("Content-type: image/gif\n");
 410                 printf("Content-length: %ld\n", bytes);
 411                 printf("\n");
 412
 413                 while (bytes > (off_t)0) {
 414                         thisblock = (off_t)sizeof(xferbuf);
 415                         if (thisblock > bytes) thisblock = bytes;
 416                         serv_printf("READ %ld|%ld", accomplished, thisblock);
 417                         serv_gets(buf);
 418                         if (buf[0]=='6') thisblock = extract_long(&buf[4],0);
 419                         serv_read(xferbuf, (int)thisblock);
 420                         fwrite(xferbuf, thisblock, 1, stdout);
 421                         bytes = bytes - thisblock;
 422                         accomplished = accomplished + thisblock;
 423                         }
 424                 fflush(stdout);
 425                 serv_puts("CLOS");
 426                 serv_gets(buf);
 427                 }
 428         else {
 429                 printf("HTTP/1.0 404 %s\n", strerror(errno));
 430                 output_headers(0, "");
 431                 printf("Content-Type: text/plain\n");
 432                 sprintf(buf, "Error retrieving image\n");
 433                 printf("Content-length: %d\n", strlen(buf));
 434                 printf("\n");
 435                 fwrite(buf, strlen(buf), 1, stdout);
 436                 }
 437
 438         }
 439
 440
 441 /*
 442  * Convenience functions to display a page containing only a string
 443  */
 444 void convenience_page(char *titlebarcolor, char *titlebarmsg, char *messagetext) {
 445         printf("HTTP/1.0 200 OK\n");
 446         output_headers(1, "bottom");
 447         wprintf("<TABLE WIDTH=100% BORDER=0 BGCOLOR=%s><TR><TD>", titlebarcolor);
 448         wprintf("<FONT SIZE=+1 COLOR=\"FFFFFF\"");
 449         wprintf("<B>%s</B>\n", titlebarmsg);
 450         wprintf("</FONT></TD></TR></TABLE><BR>\n");
 451         escputs(messagetext);
 452
 453         if (noframes) {
 454                 wprintf("<HR>\n");
 455                 embed_main_menu();
 456                 }
 457
 458         wDumpContent(1);
 459         }
 460
 461 void display_error(char *errormessage) {
 462         convenience_page("770000", "Error", errormessage);
 463         }
 464
 465 void display_success(char *successmessage) {
 466         convenience_page("007700", "OK", successmessage);
 467         }
 468
 469
 470
 471 void extract_action(char *actbuf, char *cmdbuf) {
 472         int i;
 473
 474         strcpy(actbuf, cmdbuf);
 475         if (!strncasecmp(actbuf, "GET /", 5)) strcpy(actbuf, &actbuf[5]);
 476         if (!strncasecmp(actbuf, "PUT /", 5)) strcpy(actbuf, &actbuf[5]);
 477         if (!strncasecmp(actbuf, "POST /", 6)) strcpy(actbuf, &actbuf[6]);
 478
 479         for (i=0; i<strlen(actbuf); ++i) {
 480                 if (actbuf[i]==' ') { actbuf[i]=0; i=0; }
 481                 if (actbuf[i]=='/') { actbuf[i]=0; i=0; }
 482                 if (actbuf[i]=='?') { actbuf[i]=0; i=0; }
 483                 if (actbuf[i]=='&') { actbuf[i]=0; i=0; }
 484                 }
 485         }
 486
 487
 488 void upload_handler(char *name, char *filename, char *encoding,
 489                         void *content, char *cbtype, size_t length) {
 490
 491         fprintf(stderr, "UPLOAD HANDLER CALLED\n");
 492         fprintf(stderr, "    name = %s\n", name);
 493         fprintf(stderr, "filename = %s\n", filename);
 494         fprintf(stderr, "encoding = %s\n", encoding);
 495         fprintf(stderr, "    type = %s\n", cbtype);
 496         fprintf(stderr, "  length = %d\n", length);
 497
 498         if (strlen(name)>0) {
 499                 upload = malloc(length);
 500                 if (upload != NULL) {
 501                         upload_length = length;
 502                         memcpy(upload, content, length);
 503                         }
 504                 }
 505
 506         }
 507
 508
 509 void session_loop(void) {
 510         char cmd[256];
 511         char action[256];
 512         char buf[256];
 513         int a, b;
 514         int ContentLength = 0;
 515         char ContentType[512];
 516         char *content;
 517
 518         /* We stuff these with the values coming from the client cookies,
 519          * so we can use them to reconnect a timed out session if we have to.
 520          */
 521         char c_host[256];
 522         char c_port[256];
 523         char c_username[256];
 524         char c_password[256];
 525         char c_roomname[256];
 526         char cookie[256];
 527
 528         strcpy(c_host, defaulthost);
 529         strcpy(c_port, defaultport);
 530         strcpy(c_username, "");
 531         strcpy(c_password, "");
 532         strcpy(c_roomname, "");
 533
 534         upload_length = 0;
 535         upload = NULL;
 536
 537         getz(cmd);
 538         extract_action(action, cmd);
 539
 540         do {
 541                 getz(buf);
 542
 543                 if (!strncasecmp(buf, "Cookie: webcit=", 15)) {
 544                         strcpy(cookie, &buf[15]);
 545                         cookie_to_stuff(cookie, NULL,
 546                                         c_username, c_password, c_roomname,
 547                                         &noframes);
 548                         }
 549
 550                 if (!strncasecmp(buf, "Content-length: ", 16)) {
 551                         ContentLength = atoi(&buf[16]);
 552                         }
 553                 if (!strncasecmp(buf, "Content-type: ", 14)) {
 554                         strcpy(ContentType, &buf[14]);
 555                         }
 556                 } while(strlen(buf)>0);
 557
 558         ++TransactionCount;
 559
 560         if (ContentLength > 0) {
 561                 content = malloc(ContentLength+1);
 562                 fread(content, ContentLength, 1, stdin);
 563
 564                 content[ContentLength] = 0;
 565
 566                 if (!strncasecmp(ContentType,
 567                    "application/x-www-form-urlencoded", 33)) {
 568                         addurls(content);
 569                         }
 570                 else if (!strncasecmp(ContentType, "multipart", 9)) {
 571                         mime_parser(content, ContentLength, ContentType,
 572                                         *upload_handler);
 573                         }
 574                 }
 575         else {
 576                 content = NULL;
 577                 }
 578
 579         /* If there are variables in the URL, we must grab them now */
 580         for (a=0; a<strlen(cmd); ++a) if ((cmd[a]=='?')||(cmd[a]=='&')) {
 581                 for (b=a; b<strlen(cmd); ++b) if (isspace(cmd[b])) cmd[b]=0;
 582                 addurls(&cmd[a+1]);
 583                 cmd[a] = 0;
 584                 }
 585
 586         /*
 587          * If we're not connected to a Citadel server, try to hook up the
 588          * connection now.  Preference is given to the host and port specified
 589          * by browser cookies, if cookies have been supplied.
 590          */
 591         if (!connected) {
 592                 if (strlen(bstr("host"))>0) strcpy(c_host, bstr("host"));
 593                 if (strlen(bstr("port"))>0) strcpy(c_port, bstr("port"));
 594                 serv_sock = connectsock(c_host, c_port, "tcp");
 595                 connected = 1;
 596                 serv_gets(buf); /* get the server welcome message */
 597                 get_serv_info();
 598                 }
 599
 600         check_for_express_messages();
 601
 602         /*
 603          * If we're not logged in, but we have username and password cookies
 604          * supplied by the browser, try using them to log in.
 605          */
 606         if ((!logged_in)&&(strlen(c_username)>0)&&(strlen(c_password)>0)) {
 607                 serv_printf("USER %s", c_username);
 608                 serv_gets(buf);
 609                 if (buf[0]=='3') {
 610                         serv_printf("PASS %s", c_password);
 611                         serv_gets(buf);
 612                         if (buf[0]=='2') {
 613                                 become_logged_in(c_username, c_password, buf);
 614                                 }
 615                         }
 616                 }
 617
 618         /*
 619          * If we don't have a current room, but a cookie specifying the
 620          * current room is supplied, make an effort to go there.
 621          */
 622         if ((strlen(wc_roomname)==0) && (strlen(c_roomname)>0) ) {
 623                 serv_printf("GOTO %s", c_roomname);
 624                 serv_gets(buf);
 625                 if (buf[0]=='2') {
 626                         strcpy(wc_roomname, c_roomname);
 627                         }
 628                 }
 629
 630         if (!strcasecmp(action, "static")) {
 631                 strcpy(buf, &cmd[12]);
 632                 for (a=0; a<strlen(buf); ++a) if (isspace(buf[a])) buf[a]=0;
 633                 output_static(buf);
 634                 }
 635
 636         else if (!strcasecmp(action, "image")) {
 637                 output_image();
 638                 }
 639
 640         else if ((!logged_in)&&(!strcasecmp(action, "login"))) {
 641                 do_login();
 642                 }
 643
 644         else if (!logged_in) {
 645                 display_login(NULL);
 646                 }
 647
 648         /* Various commands... */
 649
 650         else if (!strcasecmp(action, "do_welcome")) {
 651                 do_welcome();
 652                 }
 653
 654         else if (!strcasecmp(action, "display_main_menu")) {
 655                 display_main_menu();
 656                 }
 657
 658         else if (!strcasecmp(action, "advanced")) {
 659                 display_advanced_menu();
 660                 }
 661
 662         else if (!strcasecmp(action, "whobbs")) {
 663                 whobbs();
 664                 }
 665
 666         else if (!strcasecmp(action, "knrooms")) {
 667                 list_all_rooms_by_floor();
 668                 }
 669
 670         else if (!strcasecmp(action, "gotonext")) {
 671                 slrp_highest();
 672                 gotonext();
 673                 }
 674
 675         else if (!strcasecmp(action, "skip")) {
 676                 gotonext();
 677                 }
 678
 679         else if (!strcasecmp(action, "ungoto")) {
 680                 ungoto();
 681                 }
 682
 683         else if (!strcasecmp(action, "dotgoto")) {
 684                 slrp_highest();
 685                 gotoroom(bstr("room"), 1);
 686                 }
 687
 688         else if (!strcasecmp(action, "termquit")) {
 689                 do_logout();
 690                 }
 691
 692         else if (!strcasecmp(action, "readnew")) {
 693                 readloop("readnew");
 694                 }
 695
 696         else if (!strcasecmp(action, "readold")) {
 697                 readloop("readold");
 698                 }
 699
 700         else if (!strcasecmp(action, "readfwd")) {
 701                 readloop("readfwd");
 702                 }
 703
 704         else if (!strcasecmp(action, "display_enter")) {
 705                 display_enter();
 706                 }
 707
 708         else if (!strcasecmp(action, "post")) {
 709                 post_message();
 710                 }
 711
 712         else if (!strcasecmp(action, "confirm_delete_msg")) {
 713                 confirm_delete_msg();
 714                 }
 715
 716         else if (!strcasecmp(action, "delete_msg")) {
 717                 delete_msg();
 718                 }
 719
 720         else if (!strcasecmp(action, "confirm_move_msg")) {
 721                 confirm_move_msg();
 722                 }
 723
 724         else if (!strcasecmp(action, "move_msg")) {
 725                 move_msg();
 726                 }
 727
 728         else if (!strcasecmp(action, "userlist")) {
 729                 userlist();
 730                 }
 731
 732         else if (!strcasecmp(action, "showuser")) {
 733                 showuser();
 734                 }
 735
 736         else if (!strcasecmp(action, "display_page")) {
 737                 display_page();
 738                 }
 739
 740         else if (!strcasecmp(action, "page_user")) {
 741                 page_user();
 742                 }
 743
 744         else if (!strcasecmp(action, "chat")) {
 745                 do_chat();
 746                 }
 747
 748         else if (!strcasecmp(action, "display_private")) {
 749                 display_private("", 0);
 750                 }
 751
 752         else if (!strcasecmp(action, "goto_private")) {
 753                 goto_private();
 754                 }
 755
 756         else if (!strcasecmp(action, "zapped_list")) {
 757                 zapped_list();
 758                 }
 759
 760         else if (!strcasecmp(action, "display_zap")) {
 761                 display_zap();
 762                 }
 763
 764         else if (!strcasecmp(action, "zap")) {
 765                 zap();
 766                 }
 767
 768         else if (!strcasecmp(action, "display_entroom")) {
 769                 display_entroom();
 770                 }
 771
 772         else if (!strcasecmp(action, "entroom")) {
 773                 entroom();
 774                 }
 775
 776         else if (!strcasecmp(action, "display_editroom")) {
 777                 display_editroom();
 778                 }
 779
 780         else if (!strcasecmp(action, "editroom")) {
 781                 editroom();
 782                 }
 783
 784         else if (!strcasecmp(action, "display_editinfo")) {
 785                 display_edit("Room info", "EINF 0", "RINF", "/editinfo");
 786                 }
 787
 788         else if (!strcasecmp(action, "editinfo")) {
 789                 save_edit("Room info", "EINF 1", 1);
 790                 }
 791
 792         else if (!strcasecmp(action, "display_editbio")) {
 793                 sprintf(buf, "RBIO %s", wc_username);
 794                 display_edit("Your bio", "NOOP", buf, "editbio");
 795                 }
 796
 797         else if (!strcasecmp(action, "editbio")) {
 798                 save_edit("Your bio", "EBIO", 0);
 799                 }
 800
 801         else if (!strcasecmp(action, "confirm_delete_room")) {
 802                 confirm_delete_room();
 803                 }
 804
 805         else if (!strcasecmp(action, "delete_room")) {
 806                 delete_room();
 807                 }
 808
 809         else if (!strcasecmp(action, "validate")) {
 810                 validate();
 811                 }
 812
 813         else if (!strcasecmp(action, "display_editpic")) {
 814                 display_graphics_upload("your photo",
 815                                         "UIMG 0|_userpic_",
 816                                         "/editpic");
 817                 }
 818
 819         else if (!strcasecmp(action, "editpic")) {
 820                 do_graphics_upload("UIMG 1|_userpic_");
 821                 }
 822
 823         else if (!strcasecmp(action, "display_editroompic")) {
 824                 display_graphics_upload("the graphic for this room",
 825                                         "UIMG 0|_roompic_",
 826                                         "/editroompic");
 827                 }
 828
 829         else if (!strcasecmp(action, "editroompic")) {
 830                 do_graphics_upload("UIMG 1|_roompic_");
 831                 }
 832
 833         else if (!strcasecmp(action, "select_floor_to_edit_pic")) {
 834                 select_floor_to_edit_pic();
 835                 }
 836
 837         else if (!strcasecmp(action, "display_editfloorpic")) {
 838                 sprintf(buf, "UIMG 0|_floorpic_|%s",
 839                         bstr("which_floor"));
 840                 display_graphics_upload("the graphic for this floor",
 841                                         buf,
 842                                         "/editfloorpic");
 843                 }
 844
 845         else if (!strcasecmp(action, "editfloorpic")) {
 846                 sprintf(buf, "UIMG 1|_floorpic_|%s",
 847                         bstr("which_floor"));
 848                 do_graphics_upload(buf);
 849                 }
 850
 851         else if (!strcasecmp(action, "display_reg")) {
 852                 display_reg(0);
 853                 }
 854
 855         else if (!strcasecmp(action, "register")) {
 856                 register_user();
 857                 }
 858
 859         else if (!strcasecmp(action, "display_changepw")) {
 860                 display_changepw();
 861                 }
 862
 863         else if (!strcasecmp(action, "changepw")) {
 864                 changepw();
 865                 }
 866
 867         else if (!strcasecmp(action, "display_edit_node")) {
 868                 display_edit_node();
 869                 }
 870
 871         else if (!strcasecmp(action, "display_netconf")) {
 872                 display_netconf();
 873                 }
 874
 875         else if (!strcasecmp(action, "display_confirm_unshare")) {
 876                 display_confirm_unshare();
 877                 }
 878
 879         else if (!strcasecmp(action, "display_confirm_delete_node")) {
 880                 display_confirm_delete_node();
 881                 }
 882
 883         else if (!strcasecmp(action, "delete_node")) {
 884                 delete_node();
 885                 }
 886
 887         else if (!strcasecmp(action, "unshare")) {
 888                 unshare();
 889                 }
 890
 891         else if (!strcasecmp(action, "display_add_node")) {
 892                 display_add_node();
 893                 }
 894
 895         else if (!strcasecmp(action, "add_node")) {
 896                 add_node();
 897                 }
 898
 899         else if (!strcasecmp(action, "display_share")) {
 900                 display_share();
 901                 }
 902
 903         else if (!strcasecmp(action, "share")) {
 904                 share();
 905                 }
 906
 907         else if (!strcasecmp(action, "terminate_session")) {
 908                 terminate_session();
 909                 }
 910
 911         else if (!strcasecmp(action, "edit_me")) {
 912                 edit_me();
 913                 }
 914
 915         else if (!strcasecmp(action, "display_siteconfig")) {
 916                 display_siteconfig();
 917                 }
 918
 919         else if (!strcasecmp(action, "siteconfig")) {
 920                 siteconfig();
 921                 }
 922
 923         else if (!strcasecmp(action, "display_generic")) {
 924                 display_generic();
 925                 }
 926
 927         else if (!strcasecmp(action, "do_generic")) {
 928                 do_generic();
 929                 }
 930
 931         /* When all else fails... */
 932         else {
 933                 printf("HTTP/1.0 200 OK\n");
 934                 output_headers(1, "");
 935
 936                 wprintf("TransactionCount is %d<BR>\n", TransactionCount);
 937                 wprintf("You're in session %d<HR>\n", wc_session);
 938                 wprintf("Command: <BR><PRE>\n");
 939                 escputs(cmd);
 940                 wprintf("</PRE><HR>\n");
 941                 wprintf("Variables: <BR><PRE>\n");
 942                 dump_vars();
 943                 wprintf("</PRE><HR>\n");
 944                 wDumpContent(1);
 945                 }
 946
 947         fflush(stdout);
 948         if (content != NULL) {
 949                 free(content);
 950                 content = NULL;
 951                 }
 952         free_urls();
 953         if (upload_length > 0) {
 954                 free(upload);
 955                 upload_length = 0;
 956                 }
 957         }
 958
 959 int main(int argc, char *argv[]) {
 960
 961         if (argc < 2 || argc > 4) {
 962                 fprintf(stderr,
 963                         "webcit: usage: webcit <session_id> [host [port]]\n");
 964                 return 1;
 965                 }
 966
 967         wc_session = atoi(argv[1]);
 968
 969         if (argc > 2) {
 970                 defaulthost = argv[2];
 971                 if (argc > 3)
 972                         defaultport = argv[3];
 973                 }
 974
 975         strcpy(wc_username, "");
 976         strcpy(wc_password, "");
 977         strcpy(wc_roomname, "");
 978
 979         while (1) {
 980                 session_loop();
 981                 }
 982         }