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
  24 int wc_session;
  25 char wc_host[256];
  26 char wc_port[256];
  27 char wc_username[256];
  28 char wc_password[256];
  29 char wc_roomname[256];
  30 int TransactionCount = 0;
  31 int connected = 0;
  32 int logged_in = 0;
  33 int axlevel;
  34 char *ExpressMessages = NULL;
  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 void output_headers(int print_standard_html_head) {
 265
 266         static char *unset = "; expires=28-May-1971 18:10:00 GMT";
 267
 268         printf("Server: %s\n", SERVER);
 269         printf("Connection: close\n");
 270         printf("Set-cookie: wc_session=%d\n", wc_session);
 271
 272         if (strlen(wc_host)>0) printf("Set-cookie: wc_host=%s\n", wc_host);
 273         else printf("Set-cookie: wc_host=%s\n", unset);
 274
 275         if (strlen(wc_port)>0) printf("Set-cookie: wc_port=%s\n", wc_port);
 276         else printf("Set-cookie: wc_port=%s\n", unset);
 277
 278         if (strlen(wc_username)>0) printf("Set-cookie: wc_username=%s\n",
 279                 wc_username);
 280         else printf("Set-cookie: wc_username=%s\n", unset);
 281
 282         if (strlen(wc_password)>0) printf("Set-cookie: wc_password=%s\n",
 283                 wc_password);
 284         else printf("Set-cookie: wc_password=%s\n", unset);
 285
 286         if (strlen(wc_roomname)>0) printf("Set-cookie: wc_roomname=%s\n",
 287                 wc_roomname);
 288         else printf("Set-cookie: wc_roomname=%s\n", unset);
 289
 290         if (print_standard_html_head) {
 291                 wprintf("<HTML><HEAD><TITLE>");
 292                 escputs("WebCit");       /* FIX -- add BBS name here */
 293                 wprintf("</TITLE></HEAD>");
 294                 if (ExpressMessages != NULL) {
 295                         wprintf("<SCRIPT language=\"javascript\">\n");
 296                         wprintf("function ExpressMessage() {\n");
 297                         wprintf(" alert(\"");
 298                         escputs(ExpressMessages);
 299                         wprintf("\")\n");
 300                         wprintf(" }\n </SCRIPT>\n");
 301                         }
 302                 wprintf("<BODY ");
 303                 if (ExpressMessages != NULL) {
 304                         wprintf("onload=\"ExpressMessage()\" ");
 305                         free(ExpressMessages);
 306                         ExpressMessages = NULL;
 307                         }
 308                 wprintf("BACKGROUND=\"/image&name=background\" TEXT=\"#000000\" LINK=\"#004400\">\n");
 309                 }
 310
 311         }
 312
 313
 314
 315
 316 void check_for_express_messages() {
 317         char buf[256];
 318
 319         serv_puts("PEXP");
 320         serv_gets(buf);
 321         if (buf[0]=='1') {
 322                 while (serv_gets(buf), strcmp(buf, "000")) {
 323                         if (ExpressMessages == NULL) {
 324                                 ExpressMessages = malloc(strlen(buf) + 4);
 325                                 strcpy(ExpressMessages, "");
 326                                 }
 327                         else {
 328                                 ExpressMessages = realloc(ExpressMessages,
 329                                  (strlen(ExpressMessages) + strlen(buf) + 4) );
 330                                 }
 331                         strcat(ExpressMessages, buf);
 332                         strcat(ExpressMessages, "\\n");
 333                         }
 334                 }
 335         }
 336
 337
 338
 339
 340 void output_static(char *what) {
 341         char buf[256];
 342         FILE *fp;
 343         struct stat statbuf;
 344         off_t bytes;
 345
 346         sprintf(buf, "static/%s", what);
 347         fp = fopen(buf, "rb");
 348         if (fp == NULL) {
 349                 printf("HTTP/1.0 404 %s\n", strerror(errno));
 350                 output_headers(0);
 351                 printf("Content-Type: text/plain\n");
 352                 sprintf(buf, "%s: %s\n", what, strerror(errno));
 353                 printf("Content-length: %d\n", strlen(buf));
 354                 printf("\n");
 355                 fwrite(buf, strlen(buf), 1, stdout);
 356                 }
 357         else {
 358                 printf("HTTP/1.0 200 OK\n");
 359                 output_headers(0);
 360
 361                 if (!strncasecmp(&what[strlen(what)-4], ".gif", 4))
 362                         printf("Content-type: image/gif\n");
 363                 else if (!strncasecmp(&what[strlen(what)-4], ".jpg", 4))
 364                         printf("Content-type: image/jpeg\n");
 365                 else if (!strncasecmp(&what[strlen(what)-5], ".html", 5))
 366                         printf("Content-type: text/html\n");
 367                 else
 368                         printf("Content-type: application/octet-stream\n");
 369
 370                 fstat(fileno(fp), &statbuf);
 371                 bytes = statbuf.st_size;
 372                 printf("Content-length: %ld\n", (long)bytes);
 373                 printf("\n");
 374                 while (bytes--) {
 375                         putc(getc(fp), stdout);
 376                         }
 377                 fflush(stdout);
 378                 fclose(fp);
 379                 }
 380         }
 381
 382 void output_image() {
 383         char buf[256];
 384         char xferbuf[4096];
 385         off_t bytes;
 386         off_t thisblock;
 387         off_t accomplished = 0L;
 388
 389
 390         serv_printf("OIMG %s|%s", bstr("name"), bstr("parm"));
 391         serv_gets(buf);
 392         if (buf[0]=='2') {
 393                 bytes = extract_long(&buf[4], 0);
 394                 printf("HTTP/1.0 200 OK\n");
 395                 output_headers(0);
 396                 printf("Content-type: image/gif\n");
 397                 printf("Content-length: %ld\n", bytes);
 398                 printf("\n");
 399
 400                 while (bytes > (off_t)0) {
 401                         thisblock = (off_t)sizeof(xferbuf);
 402                         if (thisblock > bytes) thisblock = bytes;
 403                         serv_printf("READ %ld|%ld", accomplished, thisblock);
 404                         serv_gets(buf);
 405                         if (buf[0]=='6') thisblock = extract_long(&buf[4],0);
 406                         serv_read(xferbuf, (int)thisblock);
 407                         fwrite(xferbuf, thisblock, 1, stdout);
 408                         bytes = bytes - thisblock;
 409                         accomplished = accomplished + thisblock;
 410                         }
 411                 fflush(stdout);
 412                 serv_puts("CLOS");
 413                 serv_gets(buf);
 414                 }
 415         else {
 416                 printf("HTTP/1.0 404 %s\n", strerror(errno));
 417                 output_headers(0);
 418                 printf("Content-Type: text/plain\n");
 419                 sprintf(buf, "Error retrieving image\n");
 420                 printf("Content-length: %d\n", strlen(buf));
 421                 printf("\n");
 422                 fwrite(buf, strlen(buf), 1, stdout);
 423                 }
 424
 425         }
 426
 427
 428 /*
 429  * Convenience function to display a page containing only an error string
 430  */
 431 void display_error(char *errormessage) {
 432         printf("HTTP/1.0 200 OK\n");
 433         output_headers(1);
 434         wprintf("<TABLE WIDTH=100% BORDER=0 BGCOLOR=770000><TR><TD>");
 435         wprintf("<FONT SIZE=+1 COLOR=\"FFFFFF\"");
 436         wprintf("<B>Error</B>\n");
 437         wprintf("</FONT></TD></TR></TABLE><BR>\n");
 438         escputs(errormessage);
 439         wprintf("</BODY></HTML>\n");
 440         wDumpContent();
 441         }
 442
 443
 444
 445
 446 void extract_action(char *actbuf, char *cmdbuf) {
 447         int i;
 448
 449         strcpy(actbuf, cmdbuf);
 450         if (!strncasecmp(actbuf, "GET /", 5)) strcpy(actbuf, &actbuf[5]);
 451         if (!strncasecmp(actbuf, "PUT /", 5)) strcpy(actbuf, &actbuf[5]);
 452         if (!strncasecmp(actbuf, "POST /", 6)) strcpy(actbuf, &actbuf[6]);
 453
 454         for (i=0; i<strlen(actbuf); ++i) {
 455                 if (actbuf[i]==' ') { actbuf[i]=0; i=0; }
 456                 if (actbuf[i]=='/') { actbuf[i]=0; i=0; }
 457                 if (actbuf[i]=='?') { actbuf[i]=0; i=0; }
 458                 if (actbuf[i]=='&') { actbuf[i]=0; i=0; }
 459                 }
 460         }
 461
 462
 463 void session_loop(void) {
 464         char cmd[256];
 465         char action[256];
 466         char buf[256];
 467         int a, b;
 468         int ContentLength = 0;
 469         char ContentType[512];
 470         char *content;
 471
 472         /* We stuff these with the values coming from the client cookies,
 473          * so we can use them to reconnect a timed out session if we have to.
 474          */
 475         char c_host[256];
 476         char c_port[256];
 477         char c_username[256];
 478         char c_password[256];
 479         char c_roomname[256];
 480
 481         strcpy(c_host, defaulthost);
 482         strcpy(c_port, defaultport);
 483         strcpy(c_username, "");
 484         strcpy(c_password, "");
 485         strcpy(c_roomname, "");
 486
 487         upload_length = 0;
 488         upload = NULL;
 489
 490         getz(cmd);
 491         extract_action(action, cmd);
 492
 493         do {
 494                 getz(buf);
 495
 496                 if (!strncasecmp(buf, "Cookie: wc_host=", 16))
 497                         strcpy(c_host, &buf[16]);
 498                 if (!strncasecmp(buf, "Cookie: wc_port=", 16))
 499                         strcpy(c_port, &buf[16]);
 500                 if (!strncasecmp(buf, "Cookie: wc_username=", 20))
 501                         strcpy(c_username, &buf[20]);
 502                 if (!strncasecmp(buf, "Cookie: wc_password=", 20))
 503                         strcpy(c_password, &buf[20]);
 504                 if (!strncasecmp(buf, "Cookie: wc_roomname=", 20))
 505                         strcpy(c_roomname, &buf[20]);
 506                 if (!strncasecmp(buf, "Content-length: ", 16)) {
 507                         ContentLength = atoi(&buf[16]);
 508                         }
 509                 if (!strncasecmp(buf, "Content-type: ", 14)) {
 510                         strcpy(ContentType, &buf[14]);
 511                         }
 512                 } while(strlen(buf)>0);
 513
 514         ++TransactionCount;
 515
 516         if (ContentLength > 0) {
 517                 content = malloc(ContentLength+1);
 518                 fread(content, ContentLength, 1, stdin);
 519
 520                 content[ContentLength] = 0;
 521
 522                 if (!strncasecmp(ContentType,
 523                    "application/x-www-form-urlencoded", 33)) {
 524                         addurls(content);
 525                         }
 526                 else if (!strncasecmp(ContentType, "multipart", 9)) {
 527                         mime_parser(content, ContentLength, ContentType);
 528                         }
 529                 }
 530         else {
 531                 content = NULL;
 532                 }
 533
 534         /* If there are variables in the URL, we must grab them now */
 535         for (a=0; a<strlen(cmd); ++a) if ((cmd[a]=='?')||(cmd[a]=='&')) {
 536                 for (b=a; b<strlen(cmd); ++b) if (isspace(cmd[b])) cmd[b]=0;
 537                 addurls(&cmd[a+1]);
 538                 cmd[a] = 0;
 539                 }
 540
 541         /*
 542          * If we're not connected to a Citadel server, try to hook up the
 543          * connection now.  Preference is given to the host and port specified
 544          * by browser cookies, if cookies have been supplied.
 545          */
 546         if (!connected) {
 547                 if (strlen(bstr("host"))>0) strcpy(c_host, bstr("host"));
 548                 if (strlen(bstr("port"))>0) strcpy(c_port, bstr("port"));
 549                 serv_sock = connectsock(c_host, c_port, "tcp");
 550                 connected = 1;
 551                 serv_gets(buf); /* get the server welcome message */
 552                 strcpy(wc_host, c_host);
 553                 strcpy(wc_port, c_port);
 554                 get_serv_info();
 555                 }
 556
 557         check_for_express_messages();
 558
 559         /*
 560          * If we're not logged in, but we have username and password cookies
 561          * supplied by the browser, try using them to log in.
 562          */
 563         if ((!logged_in)&&(strlen(c_username)>0)&&(strlen(c_password)>0)) {
 564                 serv_printf("USER %s", c_username);
 565                 serv_gets(buf);
 566                 if (buf[0]=='3') {
 567                         serv_printf("PASS %s", c_password);
 568                         serv_gets(buf);
 569                         if (buf[0]=='2') {
 570                                 become_logged_in(c_username, c_password, buf);
 571                                 }
 572                         }
 573                 }
 574
 575         /*
 576          * If we don't have a current room, but a cookie specifying the
 577          * current room is supplied, make an effort to go there.
 578          */
 579         if ((strlen(wc_roomname)==0) && (strlen(c_roomname)>0) ) {
 580                 serv_printf("GOTO %s", c_roomname);
 581                 serv_gets(buf);
 582                 if (buf[0]=='2') {
 583                         strcpy(wc_roomname, c_roomname);
 584                         }
 585                 }
 586
 587         /* FIX unfix etc. here's where the addurls() WAS... */
 588         if (!strcasecmp(action, "static")) {
 589                 strcpy(buf, &cmd[12]);
 590                 for (a=0; a<strlen(buf); ++a) if (isspace(buf[a])) buf[a]=0;
 591                 output_static(buf);
 592                 }
 593
 594         else if (!strcasecmp(action, "image")) {
 595                 output_image();
 596                 }
 597
 598         else if ((!logged_in)&&(!strcasecmp(action, "login"))) {
 599                 do_login();
 600                 }
 601
 602         else if (!logged_in) {
 603                 display_login(NULL);
 604                 }
 605
 606         /* Various commands... */
 607
 608         else if (!strcasecmp(action, "do_welcome")) {
 609                 do_welcome();
 610                 }
 611
 612         else if (!strcasecmp(action, "display_main_menu")) {
 613                 display_main_menu();
 614                 }
 615
 616         else if (!strcasecmp(action, "advanced")) {
 617                 display_advanced_menu();
 618                 }
 619
 620         else if (!strcasecmp(action, "whobbs")) {
 621                 whobbs();
 622                 }
 623
 624         else if (!strcasecmp(action, "knrooms")) {
 625                 list_all_rooms_by_floor();
 626                 }
 627
 628         else if (!strcasecmp(action, "gotonext")) {
 629                 slrp_highest();
 630                 gotonext();
 631                 }
 632
 633         else if (!strcasecmp(action, "skip")) {
 634                 gotonext();
 635                 }
 636
 637         else if (!strcasecmp(action, "ungoto")) {
 638                 ungoto();
 639                 }
 640
 641         else if (!strcasecmp(action, "dotgoto")) {
 642                 slrp_highest();
 643                 gotoroom(bstr("room"), 1);
 644                 }
 645
 646         else if (!strcasecmp(action, "termquit")) {
 647                 do_logout();
 648                 }
 649
 650         else if (!strcasecmp(action, "readnew")) {
 651                 readloop("readnew");
 652                 }
 653
 654         else if (!strcasecmp(action, "readold")) {
 655                 readloop("readold");
 656                 }
 657
 658         else if (!strcasecmp(action, "readfwd")) {
 659                 readloop("readfwd");
 660                 }
 661
 662         else if (!strcasecmp(action, "display_enter")) {
 663                 display_enter();
 664                 }
 665
 666         else if (!strcasecmp(action, "post")) {
 667                 post_message();
 668                 }
 669
 670         else if (!strcasecmp(action, "confirm_delete_msg")) {
 671                 confirm_delete_msg();
 672                 }
 673
 674         else if (!strcasecmp(action, "delete_msg")) {
 675                 delete_msg();
 676                 }
 677
 678         else if (!strcasecmp(action, "confirm_move_msg")) {
 679                 confirm_move_msg();
 680                 }
 681
 682         else if (!strcasecmp(action, "move_msg")) {
 683                 move_msg();
 684                 }
 685
 686         else if (!strcasecmp(action, "userlist")) {
 687                 userlist();
 688                 }
 689
 690         else if (!strcasecmp(action, "showuser")) {
 691                 showuser();
 692                 }
 693
 694         else if (!strcasecmp(action, "display_page")) {
 695                 display_page();
 696                 }
 697
 698         else if (!strcasecmp(action, "page_user")) {
 699                 page_user();
 700                 }
 701
 702         else if (!strcasecmp(action, "chat")) {
 703                 do_chat();
 704                 }
 705
 706         else if (!strcasecmp(action, "display_private")) {
 707                 display_private("", 0);
 708                 }
 709
 710         else if (!strcasecmp(action, "goto_private")) {
 711                 goto_private();
 712                 }
 713
 714         else if (!strcasecmp(action, "zapped_list")) {
 715                 zapped_list();
 716                 }
 717
 718         else if (!strcasecmp(action, "display_zap")) {
 719                 display_zap();
 720                 }
 721
 722         else if (!strcasecmp(action, "zap")) {
 723                 zap();
 724                 }
 725
 726         else if (!strcasecmp(action, "display_entroom")) {
 727                 display_entroom();
 728                 }
 729
 730         else if (!strcasecmp(action, "entroom")) {
 731                 entroom();
 732                 }
 733
 734         else if (!strcasecmp(action, "display_editroom")) {
 735                 display_editroom();
 736                 }
 737
 738         else if (!strcasecmp(action, "editroom")) {
 739                 editroom();
 740                 }
 741
 742         else if (!strcasecmp(action, "display_editinfo")) {
 743                 display_edit("Room info", "EINF 0", "RINF", "/editinfo");
 744                 }
 745
 746         else if (!strcasecmp(action, "editinfo")) {
 747                 save_edit("Room info", "EINF 1", 1);
 748                 }
 749
 750         else if (!strcasecmp(action, "display_editbio")) {
 751                 sprintf(buf, "RBIO %s", wc_username);
 752                 display_edit("Your bio", "NOOP", buf, "editbio");
 753                 }
 754
 755         else if (!strcasecmp(action, "editbio")) {
 756                 save_edit("Your bio", "EBIO", 0);
 757                 }
 758
 759         else if (!strcasecmp(action, "confirm_delete_room")) {
 760                 confirm_delete_room();
 761                 }
 762
 763         else if (!strcasecmp(action, "delete_room")) {
 764                 delete_room();
 765                 }
 766
 767         else if (!strcasecmp(action, "validate")) {
 768                 validate();
 769                 }
 770
 771         else if (!strcasecmp(action, "display_editpic")) {
 772                 display_graphics_upload("your photo",
 773                                         "UIMG 0|_userpic_",
 774                                         "/editpic");
 775                 }
 776
 777         else if (!strcasecmp(action, "editpic")) {
 778                 do_graphics_upload("UIMG 1|_userpic_");
 779                 }
 780
 781         else if (!strcasecmp(action, "display_editroompic")) {
 782                 display_graphics_upload("the graphic for this room",
 783                                         "UIMG 0|_roompic_",
 784                                         "/editroompic");
 785                 }
 786
 787         else if (!strcasecmp(action, "editroompic")) {
 788                 do_graphics_upload("UIMG 1|_roompic_");
 789                 }
 790
 791         else if (!strcasecmp(action, "select_floor_to_edit_pic")) {
 792                 select_floor_to_edit_pic();
 793                 }
 794
 795         else if (!strcasecmp(action, "display_editfloorpic")) {
 796                 sprintf(buf, "UIMG 0|_floorpic_|%s",
 797                         bstr("which_floor"));
 798                 display_graphics_upload("the graphic for this floor",
 799                                         buf,
 800                                         "/editfloorpic");
 801                 }
 802
 803         else if (!strcasecmp(action, "editfloorpic")) {
 804                 sprintf(buf, "UIMG 1|_floorpic_|%s",
 805                         bstr("which_floor"));
 806                 do_graphics_upload(buf);
 807                 }
 808
 809         else if (!strcasecmp(action, "display_reg")) {
 810                 display_reg(0);
 811                 }
 812
 813         else if (!strcasecmp(action, "register")) {
 814                 register_user();
 815                 }
 816
 817         /* When all else fails... */
 818         else {
 819                 printf("HTTP/1.0 200 OK\n");
 820                 output_headers(1);
 821
 822                 wprintf("TransactionCount is %d<BR>\n", TransactionCount);
 823                 wprintf("You're in session %d<HR>\n", wc_session);
 824                 wprintf("Command: <BR><PRE>\n");
 825                 escputs(cmd);
 826                 wprintf("</PRE><HR>\n");
 827                 wprintf("Variables: <BR><PRE>\n");
 828                 dump_vars();
 829                 wprintf("</PRE><HR>\n");
 830                 wprintf("</BODY></HTML>\n");
 831                 wDumpContent();
 832                 }
 833
 834         fflush(stdout);
 835         if (content != NULL) {
 836                 free(content);
 837                 content = NULL;
 838                 }
 839         free_urls();
 840         if (upload_length > 0) {
 841                 free(upload);
 842                 upload_length = 0;
 843                 }
 844         }
 845
 846 int main(int argc, char *argv[]) {
 847
 848         if (argc < 2 || argc > 4) {
 849                 fprintf(stderr,
 850                         "webcit: usage: webcit <session_id> [host [port]]\n");
 851                 return 1;
 852                 }
 853
 854         wc_session = atoi(argv[1]);
 855
 856         if (argc > 2) {
 857                 defaulthost = argv[2];
 858                 if (argc > 3)
 859                         defaultport = argv[3];
 860                 }
 861
 862         strcpy(wc_host, "");
 863         strcpy(wc_port, "");
 864         strcpy(wc_username, "");
 865         strcpy(wc_password, "");
 866         strcpy(wc_roomname, "");
 867
 868         while (1) {
 869                 session_loop();
 870                 }
 871         }