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