webcit/paging.c

   1 /*
   2  * $Id$
   3  *
   4  * Functions which implement the chat and paging facilities.
   5  */
   6
   7 #include <ctype.h>
   8 #include <stdlib.h>
   9 #include <unistd.h>
  10 #include <stdio.h>
  11 #include <fcntl.h>
  12 #include <signal.h>
  13 #include <sys/types.h>
  14 #include <sys/wait.h>
  15 #include <sys/socket.h>
  16 #include <sys/poll.h>
  17 #include <sys/time.h>
  18 #include <limits.h>
  19 #include <netinet/in.h>
  20 #include <netdb.h>
  21 #include <string.h>
  22 #include <pwd.h>
  23 #include <errno.h>
  24 #include <stdarg.h>
  25 #include <pthread.h>
  26 #include <signal.h>
  27 #include "webcit.h"
  28
  29
  30 /*
  31  * display the form for paging (x-messaging) another user
  32  */
  33 void display_page(void)
  34 {
  35         char recp[SIZ];
  36
  37         strcpy(recp, bstr("recp"));
  38
  39         output_headers(1, 1, 0, 0, 0, 0, 0);
  40
  41         svprintf("BOXTITLE", WCS_STRING, "Page: %s", recp);
  42         do_template("beginbox");
  43
  44         wprintf("<FORM METHOD=\"POST\" ACTION=\"/page_user\">\n");
  45
  46         wprintf("<TABLE border=0 width=100%%><TR><TD>\n");
  47
  48         wprintf("<INPUT TYPE=\"hidden\" NAME=\"recp\" VALUE=\"");
  49         escputs(recp);
  50         wprintf("\">\n");
  51
  52         wprintf("<INPUT TYPE=\"hidden\" NAME=\"closewin\" VALUE=\"");
  53         escputs(bstr("closewin"));
  54         wprintf("\">\n");
  55
  56         wprintf("Enter message text:<br />");
  57
  58         wprintf("<TEXTAREA NAME=\"msgtext\" wrap=soft ROWS=5 COLS=40 "
  59                 "WIDTH=40></TEXTAREA>\n");
  60
  61         wprintf("</TD></TR></TABLE><br />\n");
  62
  63         wprintf("<INPUT TYPE=\"submit\" NAME=\"sc\" VALUE=\"Send message\">");
  64         wprintf("<br /><A HREF=\"javascript:window.close();\"Cancel</A>\n");
  65
  66         wprintf("</FORM></CENTER>\n");
  67         do_template("endbox");
  68         wDumpContent(1);
  69 }
  70
  71 /*
  72  * page another user
  73  */
  74 void page_user(void)
  75 {
  76         char recp[SIZ];
  77         char sc[SIZ];
  78         char buf[SIZ];
  79         char closewin[SIZ];
  80
  81         output_headers(1, 1, 0, 0, 0, 0, 0);
  82
  83         strcpy(recp, bstr("recp"));
  84         strcpy(sc, bstr("sc"));
  85         strcpy(closewin, bstr("closewin"));
  86
  87         if (strcmp(sc, "Send message")) {
  88                 wprintf("<EM>Message was not sent.</EM><br />\n");
  89         } else {
  90                 serv_printf("SEXP %s|-", recp);
  91                 serv_gets(buf);
  92
  93                 if (buf[0] == '4') {
  94                         text_to_server(bstr("msgtext"), 0);
  95                         serv_puts("000");
  96                         wprintf("<EM>Message has been sent to ");
  97                         escputs(recp);
  98                         wprintf(".</EM><br />\n");
  99                 }
 100                 else {
 101                         wprintf("<EM>%s</EM><br />\n", &buf[4]);
 102                 }
 103         }
 104
 105         if (!strcasecmp(closewin, "yes")) {
 106                 wprintf("<CENTER><A HREF=\"javascript:window.close();\">"
 107                         "[ close window ]</A></CENTER>\n");
 108         }
 109
 110         wDumpContent(1);
 111 }
 112
 113
 114
 115 /*
 116  * multiuser chat
 117  */
 118 void do_chat(void)
 119 {
 120         char buf[SIZ];
 121
 122         /* First, check to make sure we're still allowed in this room. */
 123         serv_printf("GOTO %s", WC->wc_roomname);
 124         serv_gets(buf);
 125         if (buf[0] != '2') {
 126                 smart_goto("_BASEROOM_");
 127                 return;
 128         }
 129
 130         /* If the chat socket is still open from a previous chat,
 131          * close it -- because it might be stale or in the wrong room.
 132          */
 133         if (WC->chat_sock < 0) {
 134                 close(WC->chat_sock);
 135                 WC->chat_sock = (-1);
 136         }
 137
 138         /* WebCit Chat works by having transmit, receive, and refresh
 139          * frames.  Load the frameset.
 140          */
 141         do_template("chatframeset");
 142         return;
 143 }
 144
 145
 146 /*
 147  *
 148  */
 149 void page_popup(void)
 150 {
 151         char buf[SIZ];
 152         char pagefrom[SIZ];
 153
 154         while (serv_puts("GEXP"), serv_gets(buf), buf[0]=='1') {
 155
 156                 extract(pagefrom, &buf[4], 3);
 157
 158                 wprintf("<table border=1 bgcolor=\"#880000\"><tr><td>");
 159                 wprintf("<span class=\"titlebar\">Instant message from ");
 160                 escputs(pagefrom);
 161                 wprintf("</span></td></tr><tr><td><font color=\"#FFFFFF\">");
 162                 fmout(NULL, "LEFT");
 163                 wprintf("</font></td></tr>"
 164                         "<tr><td><div align=center><font color=\"#FFFFFF\">"
 165                         "<a href=\"javascript:hide_page_popup()\">[ close window ]</a>"
 166                         "</font></div>"
 167                         "</td></tr>"
 168                         "</table>\n");
 169         }
 170
 171         WC->HaveInstantMessages = 0;
 172 }
 173
 174
 175
 176 /*
 177  * Support function for chat -- make sure the chat socket is connected
 178  * and in chat mode.
 179  */
 180 int setup_chat_socket(void) {
 181         char buf[SIZ];
 182         int i;
 183         int good_chatmode = 0;
 184
 185         if (WC->chat_sock < 0) {
 186
 187                 if (!strcasecmp(ctdlhost, "uds")) {
 188                         /* unix domain socket */
 189                         sprintf(buf, "%s/citadel.socket", ctdlport);
 190                         WC->chat_sock = uds_connectsock(buf);
 191                 }
 192                 else {
 193                         /* tcp socket */
 194                         WC->chat_sock = tcp_connectsock(ctdlhost, ctdlport);
 195                 }
 196
 197                 if (WC->chat_sock < 0) {
 198                         return(errno);
 199                 }
 200
 201                 /* Temporarily swap the serv and chat sockets during chat talk */
 202                 i = WC->serv_sock;
 203                 WC->serv_sock = WC->chat_sock;
 204                 WC->chat_sock = i;
 205
 206                 serv_gets(buf);
 207                 if (buf[0] == '2') {
 208                         serv_printf("USER %s", WC->wc_username);
 209                         serv_gets(buf);
 210                         if (buf[0] == '3') {
 211                                 serv_printf("PASS %s", WC->wc_password);
 212                                 serv_gets(buf);
 213                                 if (buf[0] == '2') {
 214                                         serv_printf("GOTO %s", WC->wc_roomname);
 215                                         serv_gets(buf);
 216                                         if (buf[0] == '2') {
 217                                                 serv_puts("CHAT");
 218                                                 serv_gets(buf);
 219                                                 if (buf[0] == '8') {
 220                                                         good_chatmode = 1;
 221                                                 }
 222                                         }
 223                                 }
 224                         }
 225                 }
 226
 227                 /* Unswap the sockets. */
 228                 i = WC->serv_sock;
 229                 WC->serv_sock = WC->chat_sock;
 230                 WC->chat_sock = i;
 231
 232                 if (!good_chatmode) close(WC->serv_sock);
 233
 234         }
 235         return(0);
 236 }
 237
 238
 239
 240 /*
 241  * Receiving side of the chat window.  This is implemented in a
 242  * tiny hidden IFRAME that just does JavaScript writes to
 243  * other frames whenever it refreshes and finds new data.
 244  */
 245 void chat_recv(void) {
 246         int i;
 247         struct pollfd pf;
 248         int got_data = 0;
 249         int end_chat_now = 0;
 250         char buf[SIZ];
 251         char cl_user[SIZ];
 252         char cl_text[SIZ];
 253         char *output_data = NULL;
 254
 255         output_headers(0, 0, 0, 0, 0, 0, 0);
 256
 257         wprintf("Content-type: text/html\n");
 258         wprintf("\n");
 259         wprintf("<html>\n"
 260                 "<head>\n"
 261                 "<meta http-equiv=\"refresh\" content=\"3\" />\n"
 262                 "</head>\n"
 263
 264                 "<body bgcolor=\"#FFFFFF\">\n"
 265         );
 266
 267         if (setup_chat_socket() != 0) {
 268                 wprintf("Error setting up chat socket</BODY></HTML>\n");
 269                 wDumpContent(0);
 270                 return;
 271         }
 272
 273         /*
 274          * See if there is any chat data waiting.
 275          */
 276         output_data = strdup("");
 277         do {
 278                 got_data = 0;
 279                 pf.fd = WC->chat_sock;
 280                 pf.events = POLLIN;
 281                 pf.revents = 0;
 282                 if (poll(&pf, 1, 1) > 0) if (pf.revents & POLLIN) {
 283                         ++got_data;
 284
 285                         /* Temporarily swap the serv and chat sockets during chat talk */
 286                         i = WC->serv_sock;
 287                         WC->serv_sock = WC->chat_sock;
 288                         WC->chat_sock = i;
 289
 290                         serv_gets(buf);
 291
 292                         if (!strcmp(buf, "000")) {
 293                                 strcpy(buf, ":|exiting chat mode");
 294                                 end_chat_now = 1;
 295                         }
 296
 297                         /* Unswap the sockets. */
 298                         i = WC->serv_sock;
 299                         WC->serv_sock = WC->chat_sock;
 300                         WC->chat_sock = i;
 301
 302                         /* Append our output data */
 303                         output_data = realloc(output_data, strlen(output_data) + strlen(buf) + 4);
 304                         strcat(output_data, buf);
 305                         strcat(output_data, "\n");
 306                 }
 307
 308         } while ( (got_data) && (!end_chat_now) );
 309
 310         if (end_chat_now) {
 311                 close(WC->chat_sock);
 312                 WC->chat_sock = (-1);
 313                 wprintf("<IMG SRC=\"/static/blank.gif\" onLoad=\"parent.window.close();\">\n");
 314         }
 315
 316         if (strlen(output_data) > 0) {
 317
 318                 if (output_data[strlen(output_data)-1] == '\n') {
 319                         output_data[strlen(output_data)-1] = 0;
 320                 }
 321
 322                 /* Output our fun to the other frame. */
 323                 wprintf("<IMG SRC=\"/static/blank.gif\" WIDTH=1 HEIGHT=1\n"
 324                         "onLoad=\" \n"
 325                 );
 326
 327                 for (i=0; i<num_tokens(output_data, '\n'); ++i) {
 328                         extract_token(buf, output_data, i, '\n');
 329                         extract_token(cl_user, buf, 0, '|');
 330                         extract_token(cl_text, buf, 1, '|');
 331
 332                         if (strcasecmp(cl_text, "NOOP")) {
 333
 334                                 wprintf("parent.chat_transcript.document.write('");
 335
 336                                 if (strcasecmp(cl_user, WC->last_chat_user)) {
 337                                         wprintf("<TABLE border=0 WIDTH=100%% "
 338                                                 "CELLSPACING=1 CELLPADDING=0 "
 339                                                 "BGCOLOR=&quot;#FFFFFF&quot;>"
 340                                                 "<TR><TD></TR></TD></TABLE>"
 341                                         );
 342
 343                                 }
 344
 345                                 wprintf("<TABLE border=0 WIDTH=100%% "
 346                                         "CELLSPACING=0 CELLPADDING=0 "
 347                                         "BGCOLOR=&quot;#EEEEEE&quot;>");
 348
 349                                 wprintf("<TR><TD>");
 350
 351                                 if (!strcasecmp(cl_user, ":")) {
 352                                         wprintf("<I>");
 353                                 }
 354
 355                                 if (strcasecmp(cl_user, WC->last_chat_user)) {
 356                                         wprintf("<B>");
 357
 358                                         if (!strcasecmp(cl_user, WC->wc_username)) {
 359                                                 wprintf("<FONT COLOR=&quot;#FF0000&quot;>");
 360                                         }
 361                                         else {
 362                                                 wprintf("<FONT COLOR=&quot;#0000FF&quot;>");
 363                                         }
 364                                         jsescputs(cl_user);
 365
 366                                         wprintf("</FONT>: </B>");
 367                                 }
 368                                 else {
 369                                         wprintf("&nbsp;&nbsp;&nbsp;");
 370                                 }
 371                                 jsescputs(cl_text);
 372                                 if (!strcasecmp(cl_user, ":")) {
 373                                         wprintf("</I>");
 374                                 }
 375
 376                                 wprintf("</TD></TR></TABLE>");
 377                                 wprintf("'); \n");
 378
 379                                 strcpy(WC->last_chat_user, cl_user);
 380                         }
 381                 }
 382
 383                 wprintf("parent.chat_transcript.scrollTo(999999,999999);\">\n");
 384         }
 385
 386         free(output_data);
 387
 388         wprintf("</BODY></HTML>\n");
 389         wDumpContent(0);
 390 }
 391
 392
 393 /*
 394  * sending side of the chat window
 395  */
 396 void chat_send(void) {
 397         int i;
 398         char send_this[SIZ];
 399         char buf[SIZ];
 400
 401         output_headers(0, 0, 0, 0, 0, 0, 0);
 402         wprintf("Content-type: text/html\n");
 403         wprintf("\n");
 404         wprintf("<HTML>"
 405                 "<BODY onLoad=\"document.chatsendform.send_this.focus();\" >"
 406         );
 407
 408         if (bstr("send_this") != NULL) {
 409                 strcpy(send_this, bstr("send_this"));
 410         }
 411         else {
 412                 strcpy(send_this, "");
 413         }
 414
 415         if (bstr("sendbutton") != NULL) {
 416
 417                 if (!strcasecmp(bstr("sendbutton"), "Help")) {
 418                         strcpy(send_this, "/help");
 419                 }
 420
 421                 if (!strcasecmp(bstr("sendbutton"), "List Users")) {
 422                         strcpy(send_this, "/who");
 423                 }
 424
 425                 if (!strcasecmp(bstr("sendbutton"), "Exit")) {
 426                         strcpy(send_this, "/quit");
 427                 }
 428
 429                 if (setup_chat_socket() != 0) {
 430                         wprintf("Error setting up chat socket</BODY></HTML>\n");
 431                         wDumpContent(0);
 432                         return;
 433                 }
 434
 435                 /* Temporarily swap the serv and chat sockets during chat talk */
 436                 i = WC->serv_sock;
 437                 WC->serv_sock = WC->chat_sock;
 438                 WC->chat_sock = i;
 439
 440                 while (strlen(send_this) > 0) {
 441                         if (strlen(send_this) < 67) {
 442                                 serv_puts(send_this);
 443                                 strcpy(send_this, "");
 444                         }
 445                         else {
 446                                 for (i=55; i<67; ++i) {
 447                                         if (send_this[i] == ' ') break;
 448                                 }
 449                                 strncpy(buf, send_this, i);
 450                                 buf[i] = 0;
 451                                 strcpy(send_this, &send_this[i]);
 452                                 serv_puts(buf);
 453                         }
 454                 }
 455
 456                 /* Unswap the sockets. */
 457                 i = WC->serv_sock;
 458                 WC->serv_sock = WC->chat_sock;
 459                 WC->chat_sock = i;
 460
 461         }
 462
 463         wprintf("<FORM METHOD=\"POST\" ACTION=\"/chat_send\" NAME=\"chatsendform\">\n");
 464         wprintf("<INPUT TYPE=\"text\" SIZE=\"80\" MAXLENGTH=\"%d\" "
 465                 "NAME=\"send_this\">\n", SIZ-10);
 466         wprintf("<br />");
 467         wprintf("<INPUT TYPE=\"submit\" NAME=\"sendbutton\" VALUE=\"Send\">\n");
 468         wprintf("<INPUT TYPE=\"submit\" NAME=\"sendbutton\" VALUE=\"Help\">\n");
 469         wprintf("<INPUT TYPE=\"submit\" NAME=\"sendbutton\" VALUE=\"List Users\">\n");
 470         wprintf("<INPUT TYPE=\"submit\" NAME=\"sendbutton\" VALUE=\"Exit\">\n");
 471         wprintf("</FORM>\n");
 472
 473         wprintf("</BODY></HTML>\n");
 474         wDumpContent(0);
 475 }
 476
 477