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 char browser[256];
  30 int TransactionCount = 0;
  31 int connected = 0;
  32 int logged_in = 0;
  33 int axlevel;
  34 char *ExpressMessages = NULL;
  35 int noframes = 0;
  36
  37 struct webcontent *wlist = NULL;
  38 struct webcontent *wlast = NULL;
  39
  40 struct urlcontent *urlstrings = NULL;
  41
  42 static const char *defaulthost = DEFAULT_HOST;
  43 static const char *defaultport = DEFAULT_PORT;
  44
  45 int upload_length = 0;
  46 char *upload;
  47
  48
  49 void unescape_input(char *buf)
  50 {
  51         int a,b;
  52         char hex[3];
  53
  54         while ((isspace(buf[strlen(buf)-1]))&&(strlen(buf)>0))
  55                 buf[strlen(buf)-1] = 0;
  56
  57         for (a=0; a<strlen(buf); ++a) {
  58                 if (buf[a]=='+') buf[a]=' ';
  59                 if (buf[a]=='%') {
  60                         hex[0]=buf[a+1];
  61                         hex[1]=buf[a+2];
  62                         hex[2]=0;
  63                         sscanf(hex,"%02x",&b);
  64                         buf[a] = (char) b;
  65                         strcpy(&buf[a+1],&buf[a+3]);
  66                         }
  67                 }
  68
  69         }
  70
  71
  72 void addurls(char *url) {
  73         char *up, *ptr;
  74         char buf[256];
  75         int a,b;
  76         struct urlcontent *u;
  77
  78         up = url;
  79         while (strlen(up)>0) {
  80
  81                 /* locate the = sign */
  82                 strncpy(buf,up,255);
  83                 b = (-1);
  84                 for (a=255; a>=0; --a) if (buf[a]=='=') b=a;
  85                 if (b<0) return;
  86                 buf[b]=0;
  87
  88                 u = (struct urlcontent *)malloc(sizeof(struct urlcontent));
  89                 u->next = urlstrings;
  90                 urlstrings = u;
  91                 strcpy(u->url_key, buf);
  92
  93                 /* now chop that part off */
  94                 for (a=0; a<=b; ++a) ++up;
  95
  96                 /* locate the & sign */
  97                 ptr = up;
  98                 b = strlen(up);
  99                 for (a=0; a<strlen(up); ++a) {
 100                         if (!strncmp(ptr,"&",1)) {
 101                                 b=a;
 102                                 break;
 103                                 }
 104                         ++ptr;
 105                         }
 106                 ptr = up;
 107                 for (a=0; a<b; ++a) ++ptr;
 108                 strcpy(ptr,"");
 109
 110                 u->url_data = malloc(strlen(up)+1);
 111                 strcpy(u->url_data, up);
 112                 u->url_data[b] = 0;
 113                 unescape_input(u->url_data);
 114                 up = ptr;
 115                 ++up;
 116                 }
 117         }
 118
 119 void free_urls(void) {
 120         struct urlcontent *u;
 121
 122         while (urlstrings != NULL) {
 123                 free(urlstrings->url_data);
 124                 u = urlstrings->next;
 125                 free(urlstrings);
 126                 urlstrings = u;
 127                 }
 128         }
 129
 130 /*
 131  * Diagnostic function to display the contents of all variables
 132  */
 133 void dump_vars(void) {
 134         struct urlcontent *u;
 135
 136         for (u = urlstrings; u != NULL; u = u->next) {
 137                 wprintf("%38s = %s\n", u->url_key, u->url_data);
 138                 }
 139         }
 140
 141 char *bstr(char *key) {
 142         struct urlcontent *u;
 143
 144         for (u = urlstrings; u != NULL; u = u->next) {
 145                 if (!strcasecmp(u->url_key, key)) return(u->url_data);
 146                 }
 147         return("");
 148         }
 149
 150
 151 void wprintf(const char *format, ...) {
 152         va_list arg_ptr;
 153         struct webcontent *wptr;
 154
 155         wptr = (struct webcontent *)malloc(sizeof(struct webcontent));
 156         wptr->next = NULL;
 157         if (wlist == NULL) {
 158                 wlist = wptr;
 159                 wlast = wptr;
 160                 }
 161         else {
 162                 wlast->next = wptr;
 163                 wlast = wptr;
 164                 }
 165
 166         va_start(arg_ptr, format);
 167         vsprintf(wptr->w_data, format, arg_ptr);
 168         va_end(arg_ptr);
 169         }
 170
 171 int wContentLength(void) {
 172         struct webcontent *wptr;
 173         int len = 0;
 174
 175         for (wptr = wlist; wptr != NULL; wptr = wptr->next) {
 176                 len = len + strlen(wptr->w_data);
 177                 }
 178
 179         return(len);
 180         }
 181
 182 /*
 183  * wDumpContent() takes all the stuff that's been queued up using
 184  * the wprintf() and escputs() functions, and sends it out to the browser.
 185  * By queuing instead of transmitting as it's generated, we're able to
 186  * calculate a Content-length: header.
 187  *
 188  * print_standard_html_footer should be set to 0 to transmit only, 1 to
 189  * append the main menu (if in noframes mode) and closing tags, or 2 to
 190  * append the closing tags only.
 191  */
 192 void wDumpContent(int print_standard_html_footer) {
 193         struct webcontent *wptr;
 194
 195         if (print_standard_html_footer) {
 196                 if ( (noframes) && (print_standard_html_footer != 2) ) {
 197                         wprintf("<BR>");
 198                         embed_main_menu();
 199                         }
 200                 wprintf("</BODY></HTML>\n");
 201                 }
 202
 203         printf("Content-type: text/html\n");
 204         printf("Content-length: %d\n", wContentLength());
 205         printf("\n");
 206
 207         while (wlist != NULL) {
 208                 fwrite(wlist->w_data, strlen(wlist->w_data), 1, stdout);
 209                 wptr = wlist->next;
 210                 free(wlist);
 211                 wlist = wptr;
 212                 }
 213         wlast = NULL;
 214         }
 215
 216
 217 void escputs1(char *strbuf, int nbsp)
 218 {
 219         int a;
 220
 221         for (a=0; a<strlen(strbuf); ++a) {
 222                 if (strbuf[a]=='<') wprintf("&lt;");
 223                 else if (strbuf[a]=='>') wprintf("&gt;");
 224                 else if (strbuf[a]=='&') wprintf("&amp;");
 225                 else if (strbuf[a]==34) wprintf("&quot;");
 226                 else if (strbuf[a]==LB) wprintf("<");
 227                 else if (strbuf[a]==RB) wprintf(">");
 228                 else if (strbuf[a]==QU) wprintf("\"");
 229                 else if ((strbuf[a]==32)&&(nbsp==1)) {
 230                         wprintf("&nbsp;");
 231                         }
 232                 else {
 233                         wprintf("%c", strbuf[a]);
 234                         }
 235                 }
 236         }
 237
 238 void escputs(char *strbuf)
 239 {
 240         escputs1(strbuf,0);
 241         }
 242
 243
 244
 245 char *urlesc(char *strbuf)
 246 {
 247         int a,b,c;
 248         char *ec = " #&;`'|*?-~<>^()[]{}$\\";
 249         static char outbuf[512];
 250
 251         strcpy(outbuf,"");
 252
 253         for (a=0; a<strlen(strbuf); ++a) {
 254                 c = 0;
 255                 for (b=0; b<strlen(ec); ++b) {
 256                         if (strbuf[a]==ec[b]) c=1;
 257                         }
 258                 b = strlen(outbuf);
 259                 if (c==1) sprintf(&outbuf[b],"%%%02x",strbuf[a]);
 260                 else sprintf(&outbuf[b],"%c",strbuf[a]);
 261                 }
 262         return(outbuf);
 263         }
 264
 265 void urlescputs(char *strbuf)
 266 {
 267         wprintf("%s",urlesc(strbuf));
 268         }
 269
 270
 271 char *getz(char *buf) {
 272         bzero(buf, 256);
 273         if (fgets(buf, 256, stdin) == NULL) {
 274                 strcpy(buf, "");
 275                 return NULL;
 276                 }
 277         else {
 278                 while ((strlen(buf)>0)&&(!isprint(buf[strlen(buf)-1])))
 279                         buf[strlen(buf)-1] = 0;
 280                 return buf;
 281                 }
 282         }
 283
 284 /*
 285  * Output all that important stuff that the browser will want to see
 286  *
 287  * If print_standard_html_head is nonzero, we also get some standard HTML
 288  * headers.  If it's set to 2, the session is considered to be closing.
 289  */
 290 void output_headers(int print_standard_html_head, char *target) {
 291
 292         static char *unset = "; expires=28-May-1971 18:10:00 GMT";
 293         char cookie[256];
 294
 295         printf("Server: %s\n", SERVER);
 296         printf("Connection: close\n");
 297
 298         if ( (strlen(target)>0) && (noframes == 0) ) {
 299                 printf("Window-target: %s\n", target);
 300                 }
 301
 302
 303         if (print_standard_html_head > 0) {
 304                 printf("Pragma: no-cache\n");
 305                 printf("Cache-Control: no-store\n");
 306                 }
 307
 308         stuff_to_cookie(cookie, wc_session, wc_username, wc_password,
 309                         wc_roomname, noframes);
 310         if (print_standard_html_head==2) {
 311                 printf("X-WebCit-Session: close\n");
 312                 printf("Set-cookie: webcit=%s\n", unset);
 313                 }
 314         else {
 315                 printf("Set-cookie: webcit=%s\n", cookie);
 316                 }
 317
 318         if (print_standard_html_head > 0) {
 319                 wprintf("<HTML><HEAD><TITLE>");
 320                 escputs("WebCit");       /* FIX -- add BBS name here */
 321                 wprintf("</TITLE></HEAD>");
 322                 if (ExpressMessages != NULL) {
 323                         wprintf("<SCRIPT language=\"javascript\">\n");
 324                         wprintf("function ExpressMessage() {\n");
 325                         wprintf(" alert(\"");
 326                         escputs(ExpressMessages);
 327                         wprintf("\")\n");
 328                         wprintf(" }\n </SCRIPT>\n");
 329                         }
 330                 wprintf("<BODY ");
 331                 if (ExpressMessages != NULL) {
 332                         wprintf("onload=\"ExpressMessage()\" ");
 333                         free(ExpressMessages);
 334                         ExpressMessages = NULL;
 335                         }
 336                 wprintf("BACKGROUND=\"/image&name=background\" TEXT=\"#000000\" LINK=\"#004400\">\n");
 337                 }
 338
 339         }
 340
 341
 342
 343
 344 void check_for_express_messages() {
 345         char buf[256];
 346
 347         serv_puts("PEXP");
 348         serv_gets(buf);
 349         if (buf[0]=='1') {
 350                 while (serv_gets(buf), strcmp(buf, "000")) {
 351                         if (ExpressMessages == NULL) {
 352                                 ExpressMessages = malloc(strlen(buf) + 4);
 353                                 strcpy(ExpressMessages, "");
 354                                 }
 355                         else {
 356                                 ExpressMessages = realloc(ExpressMessages,
 357                                  (strlen(ExpressMessages) + strlen(buf) + 4) );
 358                                 }
 359                         strcat(ExpressMessages, buf);
 360                         strcat(ExpressMessages, "\\n");
 361                         }
 362                 }
 363         }
 364
 365
 366
 367
 368 void output_static(char *what) {
 369         char buf[256];
 370         FILE *fp;
 371         struct stat statbuf;
 372         off_t bytes;
 373
 374         sprintf(buf, "static/%s", what);
 375         fp = fopen(buf, "rb");
 376         if (fp == NULL) {
 377                 printf("HTTP/1.0 404 %s\n", strerror(errno));
 378                 output_headers(0, "");
 379                 printf("Content-Type: text/plain\n");
 380                 sprintf(buf, "%s: %s\n", what, strerror(errno));
 381                 printf("Content-length: %d\n", strlen(buf));
 382                 printf("\n");
 383                 fwrite(buf, strlen(buf), 1, stdout);
 384                 }
 385         else {
 386                 printf("HTTP/1.0 200 OK\n");
 387                 output_headers(0, "");
 388
 389                 if (!strncasecmp(&what[strlen(what)-4], ".gif", 4))
 390                         printf("Content-type: image/gif\n");
 391                 else if (!strncasecmp(&what[strlen(what)-4], ".jpg", 4))
 392                         printf("Content-type: image/jpeg\n");
 393                 else if (!strncasecmp(&what[strlen(what)-5], ".html", 5))
 394                         printf("Content-type: text/html\n");
 395                 else
 396                         printf("Content-type: application/octet-stream\n");
 397
 398                 fstat(fileno(fp), &statbuf);
 399                 bytes = statbuf.st_size;
 400                 printf("Content-length: %ld\n", (long)bytes);
 401                 printf("\n");
 402                 while (bytes--) {
 403                         putc(getc(fp), stdout);
 404                         }
 405                 fflush(stdout);
 406                 fclose(fp);
 407                 }
 408         }
 409
 410 void output_image() {
 411         char buf[256];
 412         char xferbuf[4096];
 413         off_t bytes;
 414         off_t thisblock;
 415         off_t accomplished = 0L;
 416
 417
 418         serv_printf("OIMG %s|%s", bstr("name"), bstr("parm"));
 419         serv_gets(buf);
 420         if (buf[0]=='2') {
 421                 bytes = extract_long(&buf[4], 0);
 422                 printf("HTTP/1.0 200 OK\n");
 423                 output_headers(0, "");
 424                 printf("Content-type: image/gif\n");
 425                 printf("Content-length: %ld\n", (long)bytes);
 426                 printf("\n");
 427
 428                 while (bytes > (off_t)0) {
 429                         thisblock = (off_t)sizeof(xferbuf);
 430                         if (thisblock > bytes) thisblock = bytes;
 431                         serv_printf("READ %ld|%ld", accomplished, thisblock);
 432                         serv_gets(buf);
 433                         if (buf[0]=='6') thisblock = extract_long(&buf[4],0);
 434                         serv_read(xferbuf, (int)thisblock);
 435                         fwrite(xferbuf, thisblock, 1, stdout);
 436                         bytes = bytes - thisblock;
 437                         accomplished = accomplished + thisblock;
 438                         }
 439                 fflush(stdout);
 440                 serv_puts("CLOS");
 441                 serv_gets(buf);
 442                 }
 443         else {
 444                 printf("HTTP/1.0 404 %s\n", strerror(errno));
 445                 output_headers(0, "");
 446                 printf("Content-Type: text/plain\n");
 447                 sprintf(buf, "Error retrieving image\n");
 448                 printf("Content-length: %d\n", strlen(buf));
 449                 printf("\n");
 450                 fwrite(buf, strlen(buf), 1, stdout);
 451                 }
 452
 453         }
 454
 455
 456 /*
 457  * Convenience functions to display a page containing only a string
 458  */
 459 void convenience_page(char *titlebarcolor, char *titlebarmsg, char *messagetext) {
 460         printf("HTTP/1.0 200 OK\n");
 461         output_headers(1, "bottom");
 462         wprintf("<TABLE WIDTH=100% BORDER=0 BGCOLOR=%s><TR><TD>", titlebarcolor);
 463         wprintf("<FONT SIZE=+1 COLOR=\"FFFFFF\"");
 464         wprintf("<B>%s</B>\n", titlebarmsg);
 465         wprintf("</FONT></TD></TR></TABLE><BR>\n");
 466         escputs(messagetext);
 467
 468         if (noframes) {
 469                 wprintf("<HR>\n");
 470                 embed_main_menu();
 471                 }
 472
 473         wDumpContent(1);
 474         }
 475
 476 void display_error(char *errormessage) {
 477         convenience_page("770000", "Error", errormessage);
 478         }
 479
 480 void display_success(char *successmessage) {
 481         convenience_page("007700", "OK", successmessage);
 482         }
 483
 484
 485
 486 void extract_action(char *actbuf, char *cmdbuf) {
 487         int i;
 488
 489         strcpy(actbuf, cmdbuf);
 490         if (!strncasecmp(actbuf, "GET /", 5)) strcpy(actbuf, &actbuf[5]);
 491         if (!strncasecmp(actbuf, "PUT /", 5)) strcpy(actbuf, &actbuf[5]);
 492         if (!strncasecmp(actbuf, "POST /", 6)) strcpy(actbuf, &actbuf[6]);
 493
 494         for (i=0; i<strlen(actbuf); ++i) {
 495                 if (actbuf[i]==' ') { actbuf[i]=0; i=0; }
 496                 if (actbuf[i]=='/') { actbuf[i]=0; i=0; }
 497                 if (actbuf[i]=='?') { actbuf[i]=0; i=0; }
 498                 if (actbuf[i]=='&') { actbuf[i]=0; i=0; }
 499                 }
 500         }
 501
 502
 503 void upload_handler(char *name, char *filename, char *encoding,
 504                         void *content, char *cbtype, size_t length) {
 505
 506         fprintf(stderr, "UPLOAD HANDLER CALLED\n");
 507         fprintf(stderr, "    name = %s\n", name);
 508         fprintf(stderr, "filename = %s\n", filename);
 509         fprintf(stderr, "encoding = %s\n", encoding);
 510         fprintf(stderr, "    type = %s\n", cbtype);
 511         fprintf(stderr, "  length = %d\n", length);
 512
 513         if (strlen(name)>0) {
 514                 upload = malloc(length);
 515                 if (upload != NULL) {
 516                         upload_length = length;
 517                         memcpy(upload, content, length);
 518                         }
 519                 }
 520
 521         }
 522
 523
 524 void session_loop(char *browser_host) {
 525         char cmd[256];
 526         char action[256];
 527         char buf[256];
 528         int a, b;
 529         int ContentLength = 0;
 530         char ContentType[512];
 531         char *content;
 532
 533         /* We stuff these with the values coming from the client cookies,
 534          * so we can use them to reconnect a timed out session if we have to.
 535          */
 536         char c_host[256];
 537         char c_port[256];
 538         char c_username[256];
 539         char c_password[256];
 540         char c_roomname[256];
 541         char cookie[256];
 542
 543         strcpy(c_host, defaulthost);
 544         strcpy(c_port, defaultport);
 545         strcpy(c_username, "");
 546         strcpy(c_password, "");
 547         strcpy(c_roomname, "");
 548
 549         upload_length = 0;
 550         upload = NULL;
 551
 552         if (getz(cmd)==NULL) return;
 553         extract_action(action, cmd);
 554
 555         do {
 556                 if (getz(buf)==NULL) return;
 557
 558                 if (!strncasecmp(buf, "Cookie: webcit=", 15)) {
 559                         strcpy(cookie, &buf[15]);
 560                         cookie_to_stuff(cookie, NULL,
 561                                         c_username, c_password, c_roomname,
 562                                         &noframes);
 563                         }
 564
 565                 if (!strncasecmp(buf, "Content-length: ", 16)) {
 566                         ContentLength = atoi(&buf[16]);
 567                         }
 568                 if (!strncasecmp(buf, "Content-type: ", 14)) {
 569                         strcpy(ContentType, &buf[14]);
 570                         }
 571                 } while(strlen(buf)>0);
 572
 573         ++TransactionCount;
 574
 575         if (ContentLength > 0) {
 576                 content = malloc(ContentLength+1);
 577                 fread(content, ContentLength, 1, stdin);
 578
 579                 content[ContentLength] = 0;
 580
 581                 if (!strncasecmp(ContentType,
 582                    "application/x-www-form-urlencoded", 33)) {
 583                         addurls(content);
 584                         }
 585                 else if (!strncasecmp(ContentType, "multipart", 9)) {
 586                         mime_parser(content, ContentLength, ContentType,
 587                                         *upload_handler);
 588                         }
 589                 }
 590         else {
 591                 content = NULL;
 592                 }
 593
 594         /* If there are variables in the URL, we must grab them now */
 595         for (a=0; a<strlen(cmd); ++a) if ((cmd[a]=='?')||(cmd[a]=='&')) {
 596                 for (b=a; b<strlen(cmd); ++b) if (isspace(cmd[b])) cmd[b]=0;
 597                 addurls(&cmd[a+1]);
 598                 cmd[a] = 0;
 599                 }
 600
 601         /*
 602          * If we're not connected to a Citadel server, try to hook up the
 603          * connection now.  Preference is given to the host and port specified
 604          * by browser cookies, if cookies have been supplied.
 605          */
 606         if (!connected) {
 607                 if (strlen(bstr("host"))>0) strcpy(c_host, bstr("host"));
 608                 if (strlen(bstr("port"))>0) strcpy(c_port, bstr("port"));
 609                 serv_sock = connectsock(c_host, c_port, "tcp");
 610                 connected = 1;
 611                 serv_gets(buf); /* get the server welcome message */
 612                 get_serv_info(browser_host);
 613                 }
 614
 615         check_for_express_messages();
 616
 617         /*
 618          * If we're not logged in, but we have username and password cookies
 619          * supplied by the browser, try using them to log in.
 620          */
 621         if ((!logged_in)&&(strlen(c_username)>0)&&(strlen(c_password)>0)) {
 622                 serv_printf("USER %s", c_username);
 623                 serv_gets(buf);
 624                 if (buf[0]=='3') {
 625                         serv_printf("PASS %s", c_password);
 626                         serv_gets(buf);
 627                         if (buf[0]=='2') {
 628                                 become_logged_in(c_username, c_password, buf);
 629                                 }
 630                         }
 631                 }
 632
 633         /*
 634          * If we don't have a current room, but a cookie specifying the
 635          * current room is supplied, make an effort to go there.
 636          */
 637         if ((strlen(wc_roomname)==0) && (strlen(c_roomname)>0) ) {
 638                 serv_printf("GOTO %s", c_roomname);
 639                 serv_gets(buf);
 640                 if (buf[0]=='2') {
 641                         strcpy(wc_roomname, c_roomname);
 642                         }
 643                 }
 644
 645         if (!strcasecmp(action, "static")) {
 646                 strcpy(buf, &cmd[12]);
 647                 for (a=0; a<strlen(buf); ++a) if (isspace(buf[a])) buf[a]=0;
 648                 output_static(buf);
 649                 }
 650
 651         else if (!strcasecmp(action, "image")) {
 652                 output_image();
 653                 }
 654
 655         else if ((!logged_in)&&(!strcasecmp(action, "login"))) {
 656                 do_login();
 657                 }
 658
 659         else if (!logged_in) {
 660                 display_login(NULL);
 661                 }
 662
 663         /* Various commands... */
 664
 665         else if (!strcasecmp(action, "do_welcome")) {
 666                 do_welcome();
 667                 }
 668
 669         else if (!strcasecmp(action, "display_main_menu")) {
 670                 display_main_menu();
 671                 }
 672
 673         else if (!strcasecmp(action, "advanced")) {
 674                 display_advanced_menu();
 675                 }
 676
 677         else if (!strcasecmp(action, "whobbs")) {
 678                 whobbs();
 679                 }
 680
 681         else if (!strcasecmp(action, "knrooms")) {
 682                 list_all_rooms_by_floor();
 683                 }
 684
 685         else if (!strcasecmp(action, "gotonext")) {
 686                 slrp_highest();
 687                 gotonext();
 688                 }
 689
 690         else if (!strcasecmp(action, "skip")) {
 691                 gotonext();
 692                 }
 693
 694         else if (!strcasecmp(action, "ungoto")) {
 695                 ungoto();
 696                 }
 697
 698         else if (!strcasecmp(action, "dotgoto")) {
 699                 slrp_highest();
 700                 gotoroom(bstr("room"), 1);
 701                 }
 702
 703         else if (!strcasecmp(action, "termquit")) {
 704                 do_logout();
 705                 }
 706
 707         else if (!strcasecmp(action, "readnew")) {
 708                 readloop("readnew");
 709                 }
 710
 711         else if (!strcasecmp(action, "readold")) {
 712                 readloop("readold");
 713                 }
 714
 715         else if (!strcasecmp(action, "readfwd")) {
 716                 readloop("readfwd");
 717                 }
 718
 719         else if (!strcasecmp(action, "display_enter")) {
 720                 display_enter();
 721                 }
 722
 723         else if (!strcasecmp(action, "post")) {
 724                 post_message();
 725                 }
 726
 727         else if (!strcasecmp(action, "confirm_delete_msg")) {
 728                 confirm_delete_msg();
 729                 }
 730
 731         else if (!strcasecmp(action, "delete_msg")) {
 732                 delete_msg();
 733                 }
 734
 735         else if (!strcasecmp(action, "confirm_move_msg")) {
 736                 confirm_move_msg();
 737                 }
 738
 739         else if (!strcasecmp(action, "move_msg")) {
 740                 move_msg();
 741                 }
 742
 743         else if (!strcasecmp(action, "userlist")) {
 744                 userlist();
 745                 }
 746
 747         else if (!strcasecmp(action, "showuser")) {
 748                 showuser();
 749                 }
 750
 751         else if (!strcasecmp(action, "display_page")) {
 752                 display_page();
 753                 }
 754
 755         else if (!strcasecmp(action, "page_user")) {
 756                 page_user();
 757                 }
 758
 759         else if (!strcasecmp(action, "chat")) {
 760                 do_chat();
 761                 }
 762
 763         else if (!strcasecmp(action, "display_private")) {
 764                 display_private("", 0);
 765                 }
 766
 767         else if (!strcasecmp(action, "goto_private")) {
 768                 goto_private();
 769                 }
 770
 771         else if (!strcasecmp(action, "zapped_list")) {
 772                 zapped_list();
 773                 }
 774
 775         else if (!strcasecmp(action, "display_zap")) {
 776                 display_zap();
 777                 }
 778
 779         else if (!strcasecmp(action, "zap")) {
 780                 zap();
 781                 }
 782
 783         else if (!strcasecmp(action, "display_entroom")) {
 784                 display_entroom();
 785                 }
 786
 787         else if (!strcasecmp(action, "entroom")) {
 788                 entroom();
 789                 }
 790
 791         else if (!strcasecmp(action, "display_editroom")) {
 792                 display_editroom();
 793                 }
 794
 795         else if (!strcasecmp(action, "editroom")) {
 796                 editroom();
 797                 }
 798
 799         else if (!strcasecmp(action, "display_editinfo")) {
 800                 display_edit("Room info", "EINF 0", "RINF", "/editinfo");
 801                 }
 802
 803         else if (!strcasecmp(action, "editinfo")) {
 804                 save_edit("Room info", "EINF 1", 1);
 805                 }
 806
 807         else if (!strcasecmp(action, "display_editbio")) {
 808                 sprintf(buf, "RBIO %s", wc_username);
 809                 display_edit("Your bio", "NOOP", buf, "editbio");
 810                 }
 811
 812         else if (!strcasecmp(action, "editbio")) {
 813                 save_edit("Your bio", "EBIO", 0);
 814                 }
 815
 816         else if (!strcasecmp(action, "confirm_delete_room")) {
 817                 confirm_delete_room();
 818                 }
 819
 820         else if (!strcasecmp(action, "delete_room")) {
 821                 delete_room();
 822                 }
 823
 824         else if (!strcasecmp(action, "validate")) {
 825                 validate();
 826                 }
 827
 828         else if (!strcasecmp(action, "display_editpic")) {
 829                 display_graphics_upload("your photo",
 830                                         "UIMG 0|_userpic_",
 831                                         "/editpic");
 832                 }
 833
 834         else if (!strcasecmp(action, "editpic")) {
 835                 do_graphics_upload("UIMG 1|_userpic_");
 836                 }
 837
 838         else if (!strcasecmp(action, "display_editroompic")) {
 839                 display_graphics_upload("the graphic for this room",
 840                                         "UIMG 0|_roompic_",
 841                                         "/editroompic");
 842                 }
 843
 844         else if (!strcasecmp(action, "editroompic")) {
 845                 do_graphics_upload("UIMG 1|_roompic_");
 846                 }
 847
 848         else if (!strcasecmp(action, "select_floor_to_edit_pic")) {
 849                 select_floor_to_edit_pic();
 850                 }
 851
 852         else if (!strcasecmp(action, "display_editfloorpic")) {
 853                 sprintf(buf, "UIMG 0|_floorpic_|%s",
 854                         bstr("which_floor"));
 855                 display_graphics_upload("the graphic for this floor",
 856                                         buf,
 857                                         "/editfloorpic");
 858                 }
 859
 860         else if (!strcasecmp(action, "editfloorpic")) {
 861                 sprintf(buf, "UIMG 1|_floorpic_|%s",
 862                         bstr("which_floor"));
 863                 do_graphics_upload(buf);
 864                 }
 865
 866         else if (!strcasecmp(action, "display_reg")) {
 867                 display_reg(0);
 868                 }
 869
 870         else if (!strcasecmp(action, "register")) {
 871                 register_user();
 872                 }
 873
 874         else if (!strcasecmp(action, "display_changepw")) {
 875                 display_changepw();
 876                 }
 877
 878         else if (!strcasecmp(action, "changepw")) {
 879                 changepw();
 880                 }
 881
 882         else if (!strcasecmp(action, "display_edit_node")) {
 883                 display_edit_node();
 884                 }
 885
 886         else if (!strcasecmp(action, "display_netconf")) {
 887                 display_netconf();
 888                 }
 889
 890         else if (!strcasecmp(action, "display_confirm_unshare")) {
 891                 display_confirm_unshare();
 892                 }
 893
 894         else if (!strcasecmp(action, "display_confirm_delete_node")) {
 895                 display_confirm_delete_node();
 896                 }
 897
 898         else if (!strcasecmp(action, "delete_node")) {
 899                 delete_node();
 900                 }
 901
 902         else if (!strcasecmp(action, "unshare")) {
 903                 unshare();
 904                 }
 905
 906         else if (!strcasecmp(action, "display_add_node")) {
 907                 display_add_node();
 908                 }
 909
 910         else if (!strcasecmp(action, "add_node")) {
 911                 add_node();
 912                 }
 913
 914         else if (!strcasecmp(action, "display_share")) {
 915                 display_share();
 916                 }
 917
 918         else if (!strcasecmp(action, "share")) {
 919                 share();
 920                 }
 921
 922         else if (!strcasecmp(action, "terminate_session")) {
 923                 terminate_session();
 924                 }
 925
 926         else if (!strcasecmp(action, "edit_me")) {
 927                 edit_me();
 928                 }
 929
 930         else if (!strcasecmp(action, "display_siteconfig")) {
 931                 display_siteconfig();
 932                 }
 933
 934         else if (!strcasecmp(action, "siteconfig")) {
 935                 siteconfig();
 936                 }
 937
 938         else if (!strcasecmp(action, "display_generic")) {
 939                 display_generic();
 940                 }
 941
 942         else if (!strcasecmp(action, "do_generic")) {
 943                 do_generic();
 944                 }
 945
 946         /* When all else fails... */
 947         else {
 948                 printf("HTTP/1.0 200 OK\n");
 949                 output_headers(1, "");
 950
 951                 wprintf("TransactionCount is %d<BR>\n", TransactionCount);
 952                 wprintf("You're in session %d<HR>\n", wc_session);
 953                 wprintf("Command: <BR><PRE>\n");
 954                 escputs(cmd);
 955                 wprintf("</PRE><HR>\n");
 956                 wprintf("Variables: <BR><PRE>\n");
 957                 dump_vars();
 958                 wprintf("</PRE><HR>\n");
 959                 wDumpContent(1);
 960                 }
 961
 962         fflush(stdout);
 963         if (content != NULL) {
 964                 free(content);
 965                 content = NULL;
 966                 }
 967         free_urls();
 968         if (upload_length > 0) {
 969                 free(upload);
 970                 upload_length = 0;
 971                 }
 972         }
 973
 974 int main(int argc, char *argv[]) {
 975
 976         if (argc != 6) {
 977                 fprintf(stderr,
 978                         "webcit: usage error (argc must be 6, not %d)\n",
 979                         argc);
 980                 return 1;
 981                 }
 982
 983         wc_session = atoi(argv[1]);
 984         defaulthost = argv[2];
 985         defaultport = argv[3];
 986
 987         strcpy(wc_username, "");
 988         strcpy(wc_password, "");
 989         strcpy(wc_roomname, "");
 990         strcpy(browser, argv[5]);
 991
 992         while (1) {
 993                 session_loop(argv[4]);
 994                 }
 995         }