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(void) {
 182         struct webcontent *wptr;
 183
 184         printf("Content-type: text/html\n");
 185         printf("Content-length: %d\n", wContentLength());
 186         printf("\n");
 187
 188         while (wlist != NULL) {
 189                 fwrite(wlist->w_data, strlen(wlist->w_data), 1, stdout);
 190                 wptr = wlist->next;
 191                 free(wlist);
 192                 wlist = wptr;
 193                 }
 194         wlast = NULL;
 195         }
 196
 197
 198 void escputs1(char *strbuf, int nbsp)
 199 {
 200         int a;
 201
 202         for (a=0; a<strlen(strbuf); ++a) {
 203                 if (strbuf[a]=='<') wprintf("&lt;");
 204                 else if (strbuf[a]=='>') wprintf("&gt;");
 205                 else if (strbuf[a]=='&') wprintf("&amp;");
 206                 else if (strbuf[a]==34) wprintf("&quot;");
 207                 else if (strbuf[a]==LB) wprintf("<");
 208                 else if (strbuf[a]==RB) wprintf(">");
 209                 else if (strbuf[a]==QU) wprintf("\"");
 210                 else if ((strbuf[a]==32)&&(nbsp==1)) {
 211                         wprintf("&nbsp;");
 212                         }
 213                 else {
 214                         wprintf("%c", strbuf[a]);
 215                         }
 216                 }
 217         }
 218
 219 void escputs(char *strbuf)
 220 {
 221         escputs1(strbuf,0);
 222         }
 223
 224
 225
 226 char *urlesc(char *strbuf)
 227 {
 228         int a,b,c;
 229         char *ec = " #&;`'|*?-~<>^()[]{}$\\";
 230         static char outbuf[512];
 231
 232         strcpy(outbuf,"");
 233
 234         for (a=0; a<strlen(strbuf); ++a) {
 235                 c = 0;
 236                 for (b=0; b<strlen(ec); ++b) {
 237                         if (strbuf[a]==ec[b]) c=1;
 238                         }
 239                 b = strlen(outbuf);
 240                 if (c==1) sprintf(&outbuf[b],"%%%02x",strbuf[a]);
 241                 else sprintf(&outbuf[b],"%c",strbuf[a]);
 242                 }
 243         return(outbuf);
 244         }
 245
 246 void urlescputs(char *strbuf)
 247 {
 248         wprintf("%s",urlesc(strbuf));
 249         }
 250
 251
 252 void getz(char *buf) {
 253         bzero(buf, 256);
 254         if (fgets(buf, 256, stdin) == NULL) strcpy(buf, "");
 255         else {
 256                 while ((strlen(buf)>0)&&(!isprint(buf[strlen(buf)-1])))
 257                         buf[strlen(buf)-1] = 0;
 258                 }
 259         }
 260
 261 /*
 262  * Output all that important stuff that the browser will want to see
 263  *
 264  * If print_standard_html_head is nonzero, we also get some standard HTML
 265  * headers.  If it's set to 2, the session is considered to be closing.
 266  */
 267 void output_headers(int print_standard_html_head, char *target) {
 268
 269         static char *unset = "; expires=28-May-1971 18:10:00 GMT";
 270         char cookie[256];
 271
 272         printf("Server: %s\n", SERVER);
 273         printf("Connection: close\n");
 274
 275         if ( (strlen(target)>0) && (noframes == 0) ) {
 276                 printf("Window-target: %s\n", target);
 277                 }
 278
 279
 280         if (print_standard_html_head > 0) {
 281                 printf("Pragma: no-cache\n");
 282                 printf("Cache-Control: no-store\n");
 283                 }
 284
 285         stuff_to_cookie(cookie, wc_session, wc_username, wc_password, wc_roomname);
 286         if (print_standard_html_head==2) {
 287                 printf("X-WebCit-Session: close\n");
 288                 printf("Set-cookie: webcit=%s\n", unset);
 289                 }
 290         else {
 291                 printf("Set-cookie: webcit=%s\n", cookie);
 292                 }
 293
 294         if (print_standard_html_head > 0) {
 295                 wprintf("<HTML><HEAD><TITLE>");
 296                 escputs("WebCit");       /* FIX -- add BBS name here */
 297                 wprintf("</TITLE></HEAD>");
 298                 if (ExpressMessages != NULL) {
 299                         wprintf("<SCRIPT language=\"javascript\">\n");
 300                         wprintf("function ExpressMessage() {\n");
 301                         wprintf(" alert(\"");
 302                         escputs(ExpressMessages);
 303                         wprintf("\")\n");
 304                         wprintf(" }\n </SCRIPT>\n");
 305                         }
 306                 wprintf("<BODY ");
 307                 if (ExpressMessages != NULL) {
 308                         wprintf("onload=\"ExpressMessage()\" ");
 309                         free(ExpressMessages);
 310                         ExpressMessages = NULL;
 311                         }
 312                 wprintf("BACKGROUND=\"/image&name=background\" TEXT=\"#000000\" LINK=\"#004400\">\n");
 313                 }
 314
 315         }
 316
 317
 318
 319
 320 void check_for_express_messages() {
 321         char buf[256];
 322
 323         serv_puts("PEXP");
 324         serv_gets(buf);
 325         if (buf[0]=='1') {
 326                 while (serv_gets(buf), strcmp(buf, "000")) {
 327                         if (ExpressMessages == NULL) {
 328                                 ExpressMessages = malloc(strlen(buf) + 4);
 329                                 strcpy(ExpressMessages, "");
 330                                 }
 331                         else {
 332                                 ExpressMessages = realloc(ExpressMessages,
 333                                  (strlen(ExpressMessages) + strlen(buf) + 4) );
 334                                 }
 335                         strcat(ExpressMessages, buf);
 336                         strcat(ExpressMessages, "\\n");
 337                         }
 338                 }
 339         }
 340
 341
 342
 343
 344 void output_static(char *what) {
 345         char buf[256];
 346         FILE *fp;
 347         struct stat statbuf;
 348         off_t bytes;
 349
 350         sprintf(buf, "static/%s", what);
 351         fp = fopen(buf, "rb");
 352         if (fp == NULL) {
 353                 printf("HTTP/1.0 404 %s\n", strerror(errno));
 354                 output_headers(0, "");
 355                 printf("Content-Type: text/plain\n");
 356                 sprintf(buf, "%s: %s\n", what, strerror(errno));
 357                 printf("Content-length: %d\n", strlen(buf));
 358                 printf("\n");
 359                 fwrite(buf, strlen(buf), 1, stdout);
 360                 }
 361         else {
 362                 printf("HTTP/1.0 200 OK\n");
 363                 output_headers(0, "");
 364
 365                 if (!strncasecmp(&what[strlen(what)-4], ".gif", 4))
 366                         printf("Content-type: image/gif\n");
 367                 else if (!strncasecmp(&what[strlen(what)-4], ".jpg", 4))
 368                         printf("Content-type: image/jpeg\n");
 369                 else if (!strncasecmp(&what[strlen(what)-5], ".html", 5))
 370                         printf("Content-type: text/html\n");
 371                 else
 372                         printf("Content-type: application/octet-stream\n");
 373
 374                 fstat(fileno(fp), &statbuf);
 375                 bytes = statbuf.st_size;
 376                 printf("Content-length: %ld\n", (long)bytes);
 377                 printf("\n");
 378                 while (bytes--) {
 379                         putc(getc(fp), stdout);
 380                         }
 381                 fflush(stdout);
 382                 fclose(fp);
 383                 }
 384         }
 385
 386 void output_image() {
 387         char buf[256];
 388         char xferbuf[4096];
 389         off_t bytes;
 390         off_t thisblock;
 391         off_t accomplished = 0L;
 392
 393
 394         serv_printf("OIMG %s|%s", bstr("name"), bstr("parm"));
 395         serv_gets(buf);
 396         if (buf[0]=='2') {
 397                 bytes = extract_long(&buf[4], 0);
 398                 printf("HTTP/1.0 200 OK\n");
 399                 output_headers(0, "");
 400                 printf("Content-type: image/gif\n");
 401                 printf("Content-length: %ld\n", bytes);
 402                 printf("\n");
 403
 404                 while (bytes > (off_t)0) {
 405                         thisblock = (off_t)sizeof(xferbuf);
 406                         if (thisblock > bytes) thisblock = bytes;
 407                         serv_printf("READ %ld|%ld", accomplished, thisblock);
 408                         serv_gets(buf);
 409                         if (buf[0]=='6') thisblock = extract_long(&buf[4],0);
 410                         serv_read(xferbuf, (int)thisblock);
 411                         fwrite(xferbuf, thisblock, 1, stdout);
 412                         bytes = bytes - thisblock;
 413                         accomplished = accomplished + thisblock;
 414                         }
 415                 fflush(stdout);
 416                 serv_puts("CLOS");
 417                 serv_gets(buf);
 418                 }
 419         else {
 420                 printf("HTTP/1.0 404 %s\n", strerror(errno));
 421                 output_headers(0, "");
 422                 printf("Content-Type: text/plain\n");
 423                 sprintf(buf, "Error retrieving image\n");
 424                 printf("Content-length: %d\n", strlen(buf));
 425                 printf("\n");
 426                 fwrite(buf, strlen(buf), 1, stdout);
 427                 }
 428
 429         }
 430
 431
 432 /*
 433  * Convenience functions to display a page containing only a string
 434  */
 435 void convenience_page(char *titlebarcolor, char *titlebarmsg, char *messagetext) {
 436         printf("HTTP/1.0 200 OK\n");
 437         output_headers(1, "bottom");
 438         wprintf("<TABLE WIDTH=100% BORDER=0 BGCOLOR=%s><TR><TD>", titlebarcolor);
 439         wprintf("<FONT SIZE=+1 COLOR=\"FFFFFF\"");
 440         wprintf("<B>%s</B>\n", titlebarmsg);
 441         wprintf("</FONT></TD></TR></TABLE><BR>\n");
 442         escputs(messagetext);
 443
 444         if (noframes) {
 445                 wprintf("<HR>\n");
 446                 embed_main_menu();
 447                 }
 448
 449         wprintf("</BODY></HTML>\n");
 450         wDumpContent();
 451         }
 452
 453 void display_error(char *errormessage) {
 454         convenience_page("770000", "Error", errormessage);
 455         }
 456
 457 void display_success(char *successmessage) {
 458         convenience_page("007700", "OK", successmessage);
 459         }
 460
 461
 462
 463 void extract_action(char *actbuf, char *cmdbuf) {
 464         int i;
 465
 466         strcpy(actbuf, cmdbuf);
 467         if (!strncasecmp(actbuf, "GET /", 5)) strcpy(actbuf, &actbuf[5]);
 468         if (!strncasecmp(actbuf, "PUT /", 5)) strcpy(actbuf, &actbuf[5]);
 469         if (!strncasecmp(actbuf, "POST /", 6)) strcpy(actbuf, &actbuf[6]);
 470
 471         for (i=0; i<strlen(actbuf); ++i) {
 472                 if (actbuf[i]==' ') { actbuf[i]=0; i=0; }
 473                 if (actbuf[i]=='/') { actbuf[i]=0; i=0; }
 474                 if (actbuf[i]=='?') { actbuf[i]=0; i=0; }
 475                 if (actbuf[i]=='&') { actbuf[i]=0; i=0; }
 476                 }
 477         }
 478
 479
 480 void upload_handler(char *name, char *filename, char *encoding,
 481                         void *content, char *cbtype, size_t length) {
 482
 483         fprintf(stderr, "UPLOAD HANDLER CALLED\n");
 484         fprintf(stderr, "    name = %s\n", name);
 485         fprintf(stderr, "filename = %s\n", filename);
 486         fprintf(stderr, "encoding = %s\n", encoding);
 487         fprintf(stderr, "    type = %s\n", cbtype);
 488         fprintf(stderr, "  length = %d\n", length);
 489
 490         if (strlen(name)>0) {
 491                 upload = malloc(length);
 492                 if (upload != NULL) {
 493                         upload_length = length;
 494                         memcpy(upload, content, length);
 495                         }
 496                 }
 497
 498         }
 499
 500
 501 void session_loop(void) {
 502         char cmd[256];
 503         char action[256];
 504         char buf[256];
 505         int a, b;
 506         int ContentLength = 0;
 507         char ContentType[512];
 508         char *content;
 509
 510         /* We stuff these with the values coming from the client cookies,
 511          * so we can use them to reconnect a timed out session if we have to.
 512          */
 513         char c_host[256];
 514         char c_port[256];
 515         char c_username[256];
 516         char c_password[256];
 517         char c_roomname[256];
 518         char cookie[256];
 519
 520         strcpy(c_host, defaulthost);
 521         strcpy(c_port, defaultport);
 522         strcpy(c_username, "");
 523         strcpy(c_password, "");
 524         strcpy(c_roomname, "");
 525
 526         upload_length = 0;
 527         upload = NULL;
 528
 529         getz(cmd);
 530         extract_action(action, cmd);
 531
 532         do {
 533                 getz(buf);
 534
 535                 if (!strncasecmp(buf, "Cookie: webcit=", 15)) {
 536                         strcpy(cookie, &buf[15]);
 537                         cookie_to_stuff(cookie, NULL,
 538                                         c_username, c_password, c_roomname);
 539                         }
 540
 541                 if (!strncasecmp(buf, "Content-length: ", 16)) {
 542                         ContentLength = atoi(&buf[16]);
 543                         }
 544                 if (!strncasecmp(buf, "Content-type: ", 14)) {
 545                         strcpy(ContentType, &buf[14]);
 546                         }
 547                 } while(strlen(buf)>0);
 548
 549         ++TransactionCount;
 550
 551         if (ContentLength > 0) {
 552                 content = malloc(ContentLength+1);
 553                 fread(content, ContentLength, 1, stdin);
 554
 555                 content[ContentLength] = 0;
 556
 557                 if (!strncasecmp(ContentType,
 558                    "application/x-www-form-urlencoded", 33)) {
 559                         addurls(content);
 560                         }
 561                 else if (!strncasecmp(ContentType, "multipart", 9)) {
 562                         mime_parser(content, ContentLength, ContentType,
 563                                         *upload_handler);
 564                         }
 565                 }
 566         else {
 567                 content = NULL;
 568                 }
 569
 570         /* If there are variables in the URL, we must grab them now */
 571         for (a=0; a<strlen(cmd); ++a) if ((cmd[a]=='?')||(cmd[a]=='&')) {
 572                 for (b=a; b<strlen(cmd); ++b) if (isspace(cmd[b])) cmd[b]=0;
 573                 addurls(&cmd[a+1]);
 574                 cmd[a] = 0;
 575                 }
 576
 577         /*
 578          * If we're not connected to a Citadel server, try to hook up the
 579          * connection now.  Preference is given to the host and port specified
 580          * by browser cookies, if cookies have been supplied.
 581          */
 582         if (!connected) {
 583                 if (strlen(bstr("host"))>0) strcpy(c_host, bstr("host"));
 584                 if (strlen(bstr("port"))>0) strcpy(c_port, bstr("port"));
 585                 serv_sock = connectsock(c_host, c_port, "tcp");
 586                 connected = 1;
 587                 serv_gets(buf); /* get the server welcome message */
 588                 get_serv_info();
 589                 }
 590
 591         check_for_express_messages();
 592
 593         /*
 594          * If we're not logged in, but we have username and password cookies
 595          * supplied by the browser, try using them to log in.
 596          */
 597         if ((!logged_in)&&(strlen(c_username)>0)&&(strlen(c_password)>0)) {
 598                 serv_printf("USER %s", c_username);
 599                 serv_gets(buf);
 600                 if (buf[0]=='3') {
 601                         serv_printf("PASS %s", c_password);
 602                         serv_gets(buf);
 603                         if (buf[0]=='2') {
 604                                 become_logged_in(c_username, c_password, buf);
 605                                 }
 606                         }
 607                 }
 608
 609         /*
 610          * If we don't have a current room, but a cookie specifying the
 611          * current room is supplied, make an effort to go there.
 612          */
 613         if ((strlen(wc_roomname)==0) && (strlen(c_roomname)>0) ) {
 614                 serv_printf("GOTO %s", c_roomname);
 615                 serv_gets(buf);
 616                 if (buf[0]=='2') {
 617                         strcpy(wc_roomname, c_roomname);
 618                         }
 619                 }
 620
 621         if (!strcasecmp(action, "static")) {
 622                 strcpy(buf, &cmd[12]);
 623                 for (a=0; a<strlen(buf); ++a) if (isspace(buf[a])) buf[a]=0;
 624                 output_static(buf);
 625                 }
 626
 627         else if (!strcasecmp(action, "image")) {
 628                 output_image();
 629                 }
 630
 631         else if ((!logged_in)&&(!strcasecmp(action, "login"))) {
 632                 do_login();
 633                 }
 634
 635         else if (!logged_in) {
 636                 display_login(NULL);
 637                 }
 638
 639         /* Various commands... */
 640
 641         else if (!strcasecmp(action, "do_welcome")) {
 642                 do_welcome();
 643                 }
 644
 645         else if (!strcasecmp(action, "display_main_menu")) {
 646                 display_main_menu();
 647                 }
 648
 649         else if (!strcasecmp(action, "advanced")) {
 650                 display_advanced_menu();
 651                 }
 652
 653         else if (!strcasecmp(action, "whobbs")) {
 654                 whobbs();
 655                 }
 656
 657         else if (!strcasecmp(action, "knrooms")) {
 658                 list_all_rooms_by_floor();
 659                 }
 660
 661         else if (!strcasecmp(action, "gotonext")) {
 662                 slrp_highest();
 663                 gotonext();
 664                 }
 665
 666         else if (!strcasecmp(action, "skip")) {
 667                 gotonext();
 668                 }
 669
 670         else if (!strcasecmp(action, "ungoto")) {
 671                 ungoto();
 672                 }
 673
 674         else if (!strcasecmp(action, "dotgoto")) {
 675                 slrp_highest();
 676                 gotoroom(bstr("room"), 1);
 677                 }
 678
 679         else if (!strcasecmp(action, "termquit")) {
 680                 do_logout();
 681                 }
 682
 683         else if (!strcasecmp(action, "readnew")) {
 684                 readloop("readnew");
 685                 }
 686
 687         else if (!strcasecmp(action, "readold")) {
 688                 readloop("readold");
 689                 }
 690
 691         else if (!strcasecmp(action, "readfwd")) {
 692                 readloop("readfwd");
 693                 }
 694
 695         else if (!strcasecmp(action, "display_enter")) {
 696                 display_enter();
 697                 }
 698
 699         else if (!strcasecmp(action, "post")) {
 700                 post_message();
 701                 }
 702
 703         else if (!strcasecmp(action, "confirm_delete_msg")) {
 704                 confirm_delete_msg();
 705                 }
 706
 707         else if (!strcasecmp(action, "delete_msg")) {
 708                 delete_msg();
 709                 }
 710
 711         else if (!strcasecmp(action, "confirm_move_msg")) {
 712                 confirm_move_msg();
 713                 }
 714
 715         else if (!strcasecmp(action, "move_msg")) {
 716                 move_msg();
 717                 }
 718
 719         else if (!strcasecmp(action, "userlist")) {
 720                 userlist();
 721                 }
 722
 723         else if (!strcasecmp(action, "showuser")) {
 724                 showuser();
 725                 }
 726
 727         else if (!strcasecmp(action, "display_page")) {
 728                 display_page();
 729                 }
 730
 731         else if (!strcasecmp(action, "page_user")) {
 732                 page_user();
 733                 }
 734
 735         else if (!strcasecmp(action, "chat")) {
 736                 do_chat();
 737                 }
 738
 739         else if (!strcasecmp(action, "display_private")) {
 740                 display_private("", 0);
 741                 }
 742
 743         else if (!strcasecmp(action, "goto_private")) {
 744                 goto_private();
 745                 }
 746
 747         else if (!strcasecmp(action, "zapped_list")) {
 748                 zapped_list();
 749                 }
 750
 751         else if (!strcasecmp(action, "display_zap")) {
 752                 display_zap();
 753                 }
 754
 755         else if (!strcasecmp(action, "zap")) {
 756                 zap();
 757                 }
 758
 759         else if (!strcasecmp(action, "display_entroom")) {
 760                 display_entroom();
 761                 }
 762
 763         else if (!strcasecmp(action, "entroom")) {
 764                 entroom();
 765                 }
 766
 767         else if (!strcasecmp(action, "display_editroom")) {
 768                 display_editroom();
 769                 }
 770
 771         else if (!strcasecmp(action, "editroom")) {
 772                 editroom();
 773                 }
 774
 775         else if (!strcasecmp(action, "display_editinfo")) {
 776                 display_edit("Room info", "EINF 0", "RINF", "/editinfo");
 777                 }
 778
 779         else if (!strcasecmp(action, "editinfo")) {
 780                 save_edit("Room info", "EINF 1", 1);
 781                 }
 782
 783         else if (!strcasecmp(action, "display_editbio")) {
 784                 sprintf(buf, "RBIO %s", wc_username);
 785                 display_edit("Your bio", "NOOP", buf, "editbio");
 786                 }
 787
 788         else if (!strcasecmp(action, "editbio")) {
 789                 save_edit("Your bio", "EBIO", 0);
 790                 }
 791
 792         else if (!strcasecmp(action, "confirm_delete_room")) {
 793                 confirm_delete_room();
 794                 }
 795
 796         else if (!strcasecmp(action, "delete_room")) {
 797                 delete_room();
 798                 }
 799
 800         else if (!strcasecmp(action, "validate")) {
 801                 validate();
 802                 }
 803
 804         else if (!strcasecmp(action, "display_editpic")) {
 805                 display_graphics_upload("your photo",
 806                                         "UIMG 0|_userpic_",
 807                                         "/editpic");
 808                 }
 809
 810         else if (!strcasecmp(action, "editpic")) {
 811                 do_graphics_upload("UIMG 1|_userpic_");
 812                 }
 813
 814         else if (!strcasecmp(action, "display_editroompic")) {
 815                 display_graphics_upload("the graphic for this room",
 816                                         "UIMG 0|_roompic_",
 817                                         "/editroompic");
 818                 }
 819
 820         else if (!strcasecmp(action, "editroompic")) {
 821                 do_graphics_upload("UIMG 1|_roompic_");
 822                 }
 823
 824         else if (!strcasecmp(action, "select_floor_to_edit_pic")) {
 825                 select_floor_to_edit_pic();
 826                 }
 827
 828         else if (!strcasecmp(action, "display_editfloorpic")) {
 829                 sprintf(buf, "UIMG 0|_floorpic_|%s",
 830                         bstr("which_floor"));
 831                 display_graphics_upload("the graphic for this floor",
 832                                         buf,
 833                                         "/editfloorpic");
 834                 }
 835
 836         else if (!strcasecmp(action, "editfloorpic")) {
 837                 sprintf(buf, "UIMG 1|_floorpic_|%s",
 838                         bstr("which_floor"));
 839                 do_graphics_upload(buf);
 840                 }
 841
 842         else if (!strcasecmp(action, "display_reg")) {
 843                 display_reg(0);
 844                 }
 845
 846         else if (!strcasecmp(action, "register")) {
 847                 register_user();
 848                 }
 849
 850         else if (!strcasecmp(action, "display_changepw")) {
 851                 display_changepw();
 852                 }
 853
 854         else if (!strcasecmp(action, "changepw")) {
 855                 changepw();
 856                 }
 857
 858         else if (!strcasecmp(action, "display_edit_node")) {
 859                 display_edit_node();
 860                 }
 861
 862         else if (!strcasecmp(action, "display_netconf")) {
 863                 display_netconf();
 864                 }
 865
 866         else if (!strcasecmp(action, "display_confirm_unshare")) {
 867                 display_confirm_unshare();
 868                 }
 869
 870         else if (!strcasecmp(action, "display_confirm_delete_node")) {
 871                 display_confirm_delete_node();
 872                 }
 873
 874         else if (!strcasecmp(action, "delete_node")) {
 875                 delete_node();
 876                 }
 877
 878         else if (!strcasecmp(action, "unshare")) {
 879                 unshare();
 880                 }
 881
 882         else if (!strcasecmp(action, "display_add_node")) {
 883                 display_add_node();
 884                 }
 885
 886         else if (!strcasecmp(action, "add_node")) {
 887                 add_node();
 888                 }
 889
 890         else if (!strcasecmp(action, "display_share")) {
 891                 display_share();
 892                 }
 893
 894         else if (!strcasecmp(action, "share")) {
 895                 share();
 896                 }
 897
 898         else if (!strcasecmp(action, "terminate_session")) {
 899                 terminate_session();
 900                 }
 901
 902         else if (!strcasecmp(action, "edit_me")) {
 903                 edit_me();
 904                 }
 905
 906         else if (!strcasecmp(action, "display_siteconfig")) {
 907                 display_siteconfig();
 908                 }
 909
 910         else if (!strcasecmp(action, "siteconfig")) {
 911                 siteconfig();
 912                 }
 913
 914         else if (!strcasecmp(action, "display_generic")) {
 915                 display_generic();
 916                 }
 917
 918         else if (!strcasecmp(action, "do_generic")) {
 919                 do_generic();
 920                 }
 921
 922         /* When all else fails... */
 923         else {
 924                 printf("HTTP/1.0 200 OK\n");
 925                 output_headers(1, "");
 926
 927                 wprintf("TransactionCount is %d<BR>\n", TransactionCount);
 928                 wprintf("You're in session %d<HR>\n", wc_session);
 929                 wprintf("Command: <BR><PRE>\n");
 930                 escputs(cmd);
 931                 wprintf("</PRE><HR>\n");
 932                 wprintf("Variables: <BR><PRE>\n");
 933                 dump_vars();
 934                 wprintf("</PRE><HR>\n");
 935                 wprintf("</BODY></HTML>\n");
 936                 wDumpContent();
 937                 }
 938
 939         fflush(stdout);
 940         if (content != NULL) {
 941                 free(content);
 942                 content = NULL;
 943                 }
 944         free_urls();
 945         if (upload_length > 0) {
 946                 free(upload);
 947                 upload_length = 0;
 948                 }
 949         }
 950
 951 int main(int argc, char *argv[]) {
 952
 953         if (argc < 2 || argc > 4) {
 954                 fprintf(stderr,
 955                         "webcit: usage: webcit <session_id> [host [port]]\n");
 956                 return 1;
 957                 }
 958
 959         wc_session = atoi(argv[1]);
 960
 961         if (argc > 2) {
 962                 defaulthost = argv[2];
 963                 if (argc > 3)
 964                         defaultport = argv[3];
 965                 }
 966
 967         strcpy(wc_username, "");
 968         strcpy(wc_password, "");
 969         strcpy(wc_roomname, "");
 970
 971         while (1) {
 972                 session_loop();
 973                 }
 974         }