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></table>\n");
 164         }
 165
 166         WC->HaveExpressMessages = 0;
 167 }
 168
 169
 170
 171 /*
 172  * Support function for chat -- make sure the chat socket is connected
 173  * and in chat mode.
 174  */
 175 int setup_chat_socket(void) {
 176         char buf[SIZ];
 177         int i;
 178         int good_chatmode = 0;
 179
 180         if (WC->chat_sock < 0) {
 181
 182                 if (!strcasecmp(ctdlhost, "uds")) {
 183                         /* unix domain socket */
 184                         sprintf(buf, "%s/citadel.socket", ctdlport);
 185                         WC->chat_sock = uds_connectsock(buf);
 186                 }
 187                 else {
 188                         /* tcp socket */
 189                         WC->chat_sock = tcp_connectsock(ctdlhost, ctdlport);
 190                 }
 191
 192                 if (WC->chat_sock < 0) {
 193                         return(errno);
 194                 }
 195
 196                 /* Temporarily swap the serv and chat sockets during chat talk */
 197                 i = WC->serv_sock;
 198                 WC->serv_sock = WC->chat_sock;
 199                 WC->chat_sock = i;
 200
 201                 serv_gets(buf);
 202                 if (buf[0] == '2') {
 203                         serv_printf("USER %s", WC->wc_username);
 204                         serv_gets(buf);
 205                         if (buf[0] == '3') {
 206                                 serv_printf("PASS %s", WC->wc_password);
 207                                 serv_gets(buf);
 208                                 if (buf[0] == '2') {
 209                                         serv_printf("GOTO %s", WC->wc_roomname);
 210                                         serv_gets(buf);
 211                                         if (buf[0] == '2') {
 212                                                 serv_puts("CHAT");
 213                                                 serv_gets(buf);
 214                                                 if (buf[0] == '8') {
 215                                                         good_chatmode = 1;
 216                                                 }
 217                                         }
 218                                 }
 219                         }
 220                 }
 221
 222                 /* Unswap the sockets. */
 223                 i = WC->serv_sock;
 224                 WC->serv_sock = WC->chat_sock;
 225                 WC->chat_sock = i;
 226
 227                 if (!good_chatmode) close(WC->serv_sock);
 228
 229         }
 230         return(0);
 231 }
 232
 233
 234
 235 /*
 236  * Receiving side of the chat window.  This is implemented in a
 237  * tiny hidden IFRAME that just does JavaScript writes to
 238  * other frames whenever it refreshes and finds new data.
 239  */
 240 void chat_recv(void) {
 241         int i;
 242         struct pollfd pf;
 243         int got_data = 0;
 244         int end_chat_now = 0;
 245         char buf[SIZ];
 246         char cl_user[SIZ];
 247         char cl_text[SIZ];
 248         char *output_data = NULL;
 249
 250         output_headers(0, 0, 0, 0, 0, 0, 0);
 251
 252         wprintf("Content-type: text/html\n");
 253         wprintf("\n");
 254         wprintf("<html>\n"
 255                 "<head>\n"
 256                 "<meta http-equiv=\"refresh\" content=\"3\" />\n"
 257                 "</head>\n"
 258
 259                 "<body bgcolor=\"#FFFFFF\">\n"
 260         );
 261
 262         if (setup_chat_socket() != 0) {
 263                 wprintf("Error setting up chat socket</BODY></HTML>\n");
 264                 wDumpContent(0);
 265                 return;
 266         }
 267
 268         /*
 269          * See if there is any chat data waiting.
 270          */
 271         output_data = strdup("");
 272         do {
 273                 got_data = 0;
 274                 pf.fd = WC->chat_sock;
 275                 pf.events = POLLIN;
 276                 pf.revents = 0;
 277                 if (poll(&pf, 1, 1) > 0) if (pf.revents & POLLIN) {
 278                         ++got_data;
 279
 280                         /* Temporarily swap the serv and chat sockets during chat talk */
 281                         i = WC->serv_sock;
 282                         WC->serv_sock = WC->chat_sock;
 283                         WC->chat_sock = i;
 284
 285                         serv_gets(buf);
 286
 287                         if (!strcmp(buf, "000")) {
 288                                 strcpy(buf, ":|exiting chat mode");
 289                                 end_chat_now = 1;
 290                         }
 291
 292                         /* Unswap the sockets. */
 293                         i = WC->serv_sock;
 294                         WC->serv_sock = WC->chat_sock;
 295                         WC->chat_sock = i;
 296
 297                         /* Append our output data */
 298                         output_data = realloc(output_data, strlen(output_data) + strlen(buf) + 4);
 299                         strcat(output_data, buf);
 300                         strcat(output_data, "\n");
 301                 }
 302
 303         } while ( (got_data) && (!end_chat_now) );
 304
 305         if (end_chat_now) {
 306                 close(WC->chat_sock);
 307                 WC->chat_sock = (-1);
 308                 wprintf("<IMG SRC=\"/static/blank.gif\" onLoad=\"parent.window.close();\">\n");
 309         }
 310
 311         if (strlen(output_data) > 0) {
 312
 313                 if (output_data[strlen(output_data)-1] == '\n') {
 314                         output_data[strlen(output_data)-1] = 0;
 315                 }
 316
 317                 /* Output our fun to the other frame. */
 318                 wprintf("<IMG SRC=\"/static/blank.gif\" WIDTH=1 HEIGHT=1\n"
 319                         "onLoad=\" \n"
 320                 );
 321
 322                 for (i=0; i<num_tokens(output_data, '\n'); ++i) {
 323                         extract_token(buf, output_data, i, '\n');
 324                         extract_token(cl_user, buf, 0, '|');
 325                         extract_token(cl_text, buf, 1, '|');
 326
 327                         if (strcasecmp(cl_text, "NOOP")) {
 328
 329                                 wprintf("parent.chat_transcript.document.write('");
 330
 331                                 if (strcasecmp(cl_user, WC->last_chat_user)) {
 332                                         wprintf("<TABLE border=0 WIDTH=100%% "
 333                                                 "CELLSPACING=1 CELLPADDING=0 "
 334                                                 "BGCOLOR=&quot;#FFFFFF&quot;>"
 335                                                 "<TR><TD></TR></TD></TABLE>"
 336                                         );
 337
 338                                 }
 339
 340                                 wprintf("<TABLE border=0 WIDTH=100%% "
 341                                         "CELLSPACING=0 CELLPADDING=0 "
 342                                         "BGCOLOR=&quot;#EEEEEE&quot;>");
 343
 344                                 wprintf("<TR><TD>");
 345
 346                                 if (!strcasecmp(cl_user, ":")) {
 347                                         wprintf("<I>");
 348                                 }
 349
 350                                 if (strcasecmp(cl_user, WC->last_chat_user)) {
 351                                         wprintf("<B>");
 352
 353                                         if (!strcasecmp(cl_user, WC->wc_username)) {
 354                                                 wprintf("<FONT COLOR=&quot;#FF0000&quot;>");
 355                                         }
 356                                         else {
 357                                                 wprintf("<FONT COLOR=&quot;#0000FF&quot;>");
 358                                         }
 359                                         jsescputs(cl_user);
 360
 361                                         wprintf("</FONT>: </B>");
 362                                 }
 363                                 else {
 364                                         wprintf("&nbsp;&nbsp;&nbsp;");
 365                                 }
 366                                 jsescputs(cl_text);
 367                                 if (!strcasecmp(cl_user, ":")) {
 368                                         wprintf("</I>");
 369                                 }
 370
 371                                 wprintf("</TD></TR></TABLE>");
 372                                 wprintf("'); \n");
 373
 374                                 strcpy(WC->last_chat_user, cl_user);
 375                         }
 376                 }
 377
 378                 wprintf("parent.chat_transcript.scrollTo(999999,999999);\">\n");
 379         }
 380
 381         free(output_data);
 382
 383         wprintf("</BODY></HTML>\n");
 384         wDumpContent(0);
 385 }
 386
 387
 388 /*
 389  * sending side of the chat window
 390  */
 391 void chat_send(void) {
 392         int i;
 393         char send_this[SIZ];
 394         char buf[SIZ];
 395
 396         output_headers(0, 0, 0, 0, 0, 0, 0);
 397         wprintf("Content-type: text/html\n");
 398         wprintf("\n");
 399         wprintf("<HTML>"
 400                 "<BODY onLoad=\"document.chatsendform.send_this.focus();\" >"
 401         );
 402
 403         if (bstr("send_this") != NULL) {
 404                 strcpy(send_this, bstr("send_this"));
 405         }
 406         else {
 407                 strcpy(send_this, "");
 408         }
 409
 410         if (bstr("sendbutton") != NULL) {
 411
 412                 if (!strcasecmp(bstr("sendbutton"), "Help")) {
 413                         strcpy(send_this, "/help");
 414                 }
 415
 416                 if (!strcasecmp(bstr("sendbutton"), "List Users")) {
 417                         strcpy(send_this, "/who");
 418                 }
 419
 420                 if (!strcasecmp(bstr("sendbutton"), "Exit")) {
 421                         strcpy(send_this, "/quit");
 422                 }
 423
 424                 if (setup_chat_socket() != 0) {
 425                         wprintf("Error setting up chat socket</BODY></HTML>\n");
 426                         wDumpContent(0);
 427                         return;
 428                 }
 429
 430                 /* Temporarily swap the serv and chat sockets during chat talk */
 431                 i = WC->serv_sock;
 432                 WC->serv_sock = WC->chat_sock;
 433                 WC->chat_sock = i;
 434
 435                 while (strlen(send_this) > 0) {
 436                         if (strlen(send_this) < 67) {
 437                                 serv_puts(send_this);
 438                                 strcpy(send_this, "");
 439                         }
 440                         else {
 441                                 for (i=55; i<67; ++i) {
 442                                         if (send_this[i] == ' ') break;
 443                                 }
 444                                 strncpy(buf, send_this, i);
 445                                 buf[i] = 0;
 446                                 strcpy(send_this, &send_this[i]);
 447                                 serv_puts(buf);
 448                         }
 449                 }
 450
 451                 /* Unswap the sockets. */
 452                 i = WC->serv_sock;
 453                 WC->serv_sock = WC->chat_sock;
 454                 WC->chat_sock = i;
 455
 456         }
 457
 458         wprintf("<FORM METHOD=\"POST\" ACTION=\"/chat_send\" NAME=\"chatsendform\">\n");
 459         wprintf("<INPUT TYPE=\"text\" SIZE=\"80\" MAXLENGTH=\"%d\" "
 460                 "NAME=\"send_this\">\n", SIZ-10);
 461         wprintf("<br />");
 462         wprintf("<INPUT TYPE=\"submit\" NAME=\"sendbutton\" VALUE=\"Send\">\n");
 463         wprintf("<INPUT TYPE=\"submit\" NAME=\"sendbutton\" VALUE=\"Help\">\n");
 464         wprintf("<INPUT TYPE=\"submit\" NAME=\"sendbutton\" VALUE=\"List Users\">\n");
 465         wprintf("<INPUT TYPE=\"submit\" NAME=\"sendbutton\" VALUE=\"Exit\">\n");
 466         wprintf("</FORM>\n");
 467
 468         wprintf("</BODY></HTML>\n");
 469         wDumpContent(0);
 470 }
 471
 472