webcit/paging.c

   1 /*
   2  * $Id$
   3  *
   4  * Functions which implement the chat and paging facilities.
   5  */
   6
   7 #include "webcit.h"
   8
   9 /*
  10  * display the form for paging (x-messaging) another user
  11  */
  12 void display_page(void)
  13 {
  14         char recp[SIZ];
  15
  16         strcpy(recp, bstr("recp"));
  17
  18         output_headers(1, 1, 2, 0, 0, 0);
  19         wprintf("<div id=\"banner\">\n"
  20                 "<TABLE WIDTH=100%% BORDER=0 BGCOLOR=\"#444455\"><TR><TD>"
  21                 "<SPAN CLASS=\"titlebar\">");
  22         wprintf(_("Send instant message"));
  23         wprintf("</SPAN>"
  24                 "</TD></TR></TABLE>\n"
  25                 "</div>\n<div id=\"content\">\n"
  26         );
  27
  28         wprintf("<div id=\"fix_scrollbar_bug\">"
  29                 "<table border=0 width=100%% bgcolor=\"#ffffff\"><tr><td>\n");
  30
  31         wprintf(_("Send an instant message to: "));
  32         escputs(recp);
  33         wprintf("<br>\n");
  34
  35         wprintf("<FORM METHOD=\"POST\" action=\"page_user\">\n");
  36
  37         wprintf("<TABLE border=0 width=100%%><TR><TD>\n");
  38
  39         wprintf("<INPUT TYPE=\"hidden\" NAME=\"recp\" VALUE=\"");
  40         escputs(recp);
  41         wprintf("\">\n");
  42
  43         wprintf("<INPUT TYPE=\"hidden\" NAME=\"closewin\" VALUE=\"");
  44         escputs(bstr("closewin"));
  45         wprintf("\">\n");
  46
  47         wprintf(_("Enter message text:"));
  48         wprintf("<br />");
  49
  50         wprintf("<TEXTAREA NAME=\"msgtext\" wrap=soft ROWS=5 COLS=40 "
  51                 "WIDTH=40></TEXTAREA>\n");
  52
  53         wprintf("</TD></TR></TABLE><br />\n");
  54
  55         wprintf("<INPUT TYPE=\"submit\" NAME=\"send_button\" VALUE=\"%s\">", _("Send message"));
  56         wprintf("<br /><a href=\"javascript:window.close();\"%s</A>\n", _("Cancel"));
  57
  58         wprintf("</FORM></CENTER>\n");
  59         wprintf("</td></tr></table></div>\n");
  60         wDumpContent(1);
  61 }
  62
  63 /*
  64  * page another user
  65  */
  66 void page_user(void)
  67 {
  68         char recp[SIZ];
  69         char buf[SIZ];
  70         char closewin[SIZ];
  71
  72         output_headers(1, 1, 2, 0, 0, 0);
  73         wprintf("<div id=\"banner\">\n"
  74                 "<TABLE WIDTH=100%% BORDER=0 BGCOLOR=\"#444455\"><TR><TD>"
  75                 "<SPAN CLASS=\"titlebar\">");
  76         wprintf(_("Add or edit an event"));
  77         wprintf("</SPAN>"
  78                 "</TD></TR></TABLE>\n"
  79                 "</div>\n<div id=\"content\">\n"
  80         );
  81
  82         strcpy(recp, bstr("recp"));
  83         strcpy(closewin, bstr("closewin"));
  84
  85         if (strlen(bstr("send_button")) == 0) {
  86                 wprintf("<EM>");
  87                 wprintf(_("Message was not sent."));
  88                 wprintf("</EM><br />\n");
  89         } else {
  90                 serv_printf("SEXP %s|-", recp);
  91                 serv_getln(buf, sizeof buf);
  92
  93                 if (buf[0] == '4') {
  94                         text_to_server(bstr("msgtext"), 0);
  95                         serv_puts("000");
  96                         wprintf("<EM>");
  97                         wprintf(_("Message has been sent to "));
  98                         escputs(recp);
  99                         wprintf(".</EM><br />\n");
 100                 }
 101                 else {
 102                         wprintf("<EM>%s</EM><br />\n", &buf[4]);
 103                 }
 104         }
 105
 106         if (!strcasecmp(closewin, "yes")) {
 107                 wprintf("<CENTER><a href=\"javascript:window.close();\">");
 108                 wprintf(_("[ close window ]"));
 109                 wprintf("</A></CENTER>\n");
 110         }
 111
 112         wDumpContent(1);
 113 }
 114
 115
 116
 117 /*
 118  * multiuser chat
 119  */
 120 void do_chat(void)
 121 {
 122         char buf[SIZ];
 123
 124         /* First, check to make sure we're still allowed in this room. */
 125         serv_printf("GOTO %s", WC->wc_roomname);
 126         serv_getln(buf, sizeof buf);
 127         if (buf[0] != '2') {
 128                 smart_goto("_BASEROOM_");
 129                 return;
 130         }
 131
 132         /* If the chat socket is still open from a previous chat,
 133          * close it -- because it might be stale or in the wrong room.
 134          */
 135         if (WC->chat_sock < 0) {
 136                 close(WC->chat_sock);
 137                 WC->chat_sock = (-1);
 138         }
 139
 140         /* WebCit Chat works by having transmit, receive, and refresh
 141          * frames.  Load the frameset.  (This isn't AJAX but the headers
 142          * output by begin_ajax_response() happen to be the ones we need.)
 143          */
 144         begin_ajax_response();
 145         do_template("chatframeset");
 146         end_ajax_response();
 147         return;
 148 }
 149
 150
 151 /*
 152  * If there are instant messages waiting, and we notice that we haven't checked them in
 153  * a while, it probably means that we need to open the instant messenger window.
 154  */
 155 void page_popup(void)
 156 {
 157         char buf[SIZ];
 158
 159         /* First, do the check as part of our page load. */
 160         serv_puts("NOOP");
 161         serv_getln(buf, sizeof buf);
 162         if (buf[3] == '*') {
 163                 if ((time(NULL) - WC->last_pager_check) > 60) {
 164                         wprintf("<script type=\"text/javascript\">"
 165                                 " window.open('static/instant_messenger.html', 'CTDL_MESSENGER', "
 166                                 " 'width=700,height=400');"
 167                                 "</script>"
 168                         );
 169                 }
 170         }
 171
 172         /* Then schedule it to happen again a minute from now if the user is idle. */
 173         wprintf("<script type=\"text/javascript\">      "
 174                 " function HandleSslp(sslg_xmlresponse) {       "
 175                 "  sslg_response = sslg_xmlresponse.responseText.substr(0, 1);  "
 176                 "  if (sslg_response == 'Y') {  "
 177                 "   window.open('static/instant_messenger.html', 'CTDL_MESSENGER',      "
 178                 "    'width=700,height=400');   "
 179                 "   }   "
 180                 " }     "
 181                 " function CheckPager() {       "
 182                 "  new Ajax.Request('sslg', { method: 'get', onSuccess: HandleSslp } ); "
 183                 " }     "
 184                 " new PeriodicalExecuter(CheckPager, 30);       "
 185                 "</script>\n"
 186         );
 187 }
 188
 189
 190
 191 /*
 192  * Support function for chat -- make sure the chat socket is connected
 193  * and in chat mode.
 194  */
 195 int setup_chat_socket(void) {
 196         char buf[SIZ];
 197         int i;
 198         int good_chatmode = 0;
 199
 200         if (WC->chat_sock < 0) {
 201
 202                 if (!strcasecmp(ctdlhost, "uds")) {
 203                         /* unix domain socket */
 204                         sprintf(buf, "%s/citadel.socket", ctdlport);
 205                         WC->chat_sock = uds_connectsock(buf);
 206                 }
 207                 else {
 208                         /* tcp socket */
 209                         WC->chat_sock = tcp_connectsock(ctdlhost, ctdlport);
 210                 }
 211
 212                 if (WC->chat_sock < 0) {
 213                         return(errno);
 214                 }
 215
 216                 /* Temporarily swap the serv and chat sockets during chat talk */
 217                 i = WC->serv_sock;
 218                 WC->serv_sock = WC->chat_sock;
 219                 WC->chat_sock = i;
 220
 221                 serv_getln(buf, sizeof buf);
 222                 if (buf[0] == '2') {
 223                         serv_printf("USER %s", WC->wc_username);
 224                         serv_getln(buf, sizeof buf);
 225                         if (buf[0] == '3') {
 226                                 serv_printf("PASS %s", WC->wc_password);
 227                                 serv_getln(buf, sizeof buf);
 228                                 if (buf[0] == '2') {
 229                                         serv_printf("GOTO %s", WC->wc_roomname);
 230                                         serv_getln(buf, sizeof buf);
 231                                         if (buf[0] == '2') {
 232                                                 serv_puts("CHAT");
 233                                                 serv_getln(buf, sizeof buf);
 234                                                 if (buf[0] == '8') {
 235                                                         good_chatmode = 1;
 236                                                 }
 237                                         }
 238                                 }
 239                         }
 240                 }
 241
 242                 /* Unswap the sockets. */
 243                 i = WC->serv_sock;
 244                 WC->serv_sock = WC->chat_sock;
 245                 WC->chat_sock = i;
 246
 247                 if (!good_chatmode) close(WC->serv_sock);
 248
 249         }
 250         return(0);
 251 }
 252
 253
 254
 255 /*
 256  * Receiving side of the chat window.  This is implemented in a
 257  * tiny hidden IFRAME that just does JavaScript writes to
 258  * other frames whenever it refreshes and finds new data.
 259  */
 260 void chat_recv(void) {
 261         int i;
 262         struct pollfd pf;
 263         int got_data = 0;
 264         int end_chat_now = 0;
 265         char buf[SIZ];
 266         char cl_user[SIZ];
 267         char cl_text[SIZ];
 268         char *output_data = NULL;
 269
 270         output_headers(0, 0, 0, 0, 0, 0);
 271
 272         wprintf("Content-type: text/html; charset=utf-8\n");
 273         wprintf("\n");
 274         wprintf("<html>\n"
 275                 "<head>\n"
 276                 "<meta http-equiv=\"refresh\" content=\"3\" />\n"
 277                 "</head>\n"
 278
 279                 "<body bgcolor=\"#FFFFFF\">\n"
 280         );
 281
 282         if (setup_chat_socket() != 0) {
 283                 wprintf(_("An error occurred while setting up the chat socket."));
 284                 wprintf("</BODY></HTML>\n");
 285                 wDumpContent(0);
 286                 return;
 287         }
 288
 289         /*
 290          * See if there is any chat data waiting.
 291          */
 292         output_data = strdup("");
 293         do {
 294                 got_data = 0;
 295                 pf.fd = WC->chat_sock;
 296                 pf.events = POLLIN;
 297                 pf.revents = 0;
 298                 if (poll(&pf, 1, 1) > 0) if (pf.revents & POLLIN) {
 299                         ++got_data;
 300
 301                         /* Temporarily swap the serv and chat sockets during chat talk */
 302                         i = WC->serv_sock;
 303                         WC->serv_sock = WC->chat_sock;
 304                         WC->chat_sock = i;
 305
 306                         serv_getln(buf, sizeof buf);
 307
 308                         if (!strcmp(buf, "000")) {
 309                                 strcpy(buf, ":|");
 310                                 strcat(buf, _("Now exiting chat mode."));
 311                                 end_chat_now = 1;
 312                         }
 313
 314                         /* Unswap the sockets. */
 315                         i = WC->serv_sock;
 316                         WC->serv_sock = WC->chat_sock;
 317                         WC->chat_sock = i;
 318
 319                         /* Append our output data */
 320                         output_data = realloc(output_data, strlen(output_data) + strlen(buf) + 4);
 321                         strcat(output_data, buf);
 322                         strcat(output_data, "\n");
 323                 }
 324
 325         } while ( (got_data) && (!end_chat_now) );
 326
 327         if (end_chat_now) {
 328                 close(WC->chat_sock);
 329                 WC->chat_sock = (-1);
 330                 wprintf("<img src=\"static/blank.gif\" onLoad=\"parent.window.close();\">\n");
 331         }
 332
 333         if (strlen(output_data) > 0) {
 334
 335                 if (output_data[strlen(output_data)-1] == '\n') {
 336                         output_data[strlen(output_data)-1] = 0;
 337                 }
 338
 339                 /* Output our fun to the other frame. */
 340                 wprintf("<img src=\"static/blank.gif\" WIDTH=1 HEIGHT=1\n"
 341                         "onLoad=\" \n"
 342                 );
 343
 344                 for (i=0; i<num_tokens(output_data, '\n'); ++i) {
 345                         extract_token(buf, output_data, i, '\n', sizeof buf);
 346                         extract_token(cl_user, buf, 0, '|', sizeof cl_user);
 347                         extract_token(cl_text, buf, 1, '|', sizeof cl_text);
 348
 349                         if (strcasecmp(cl_text, "NOOP")) {
 350
 351                                 wprintf("parent.chat_transcript.document.write('");
 352
 353                                 if (strcasecmp(cl_user, WC->last_chat_user)) {
 354                                         wprintf("<TABLE border=0 WIDTH=100%% "
 355                                                 "CELLSPACING=1 CELLPADDING=0 "
 356                                                 "BGCOLOR=&quot;#FFFFFF&quot;>"
 357                                                 "<TR><TD></TR></TD></TABLE>"
 358                                         );
 359
 360                                 }
 361
 362                                 wprintf("<TABLE border=0 WIDTH=100%% "
 363                                         "CELLSPACING=0 CELLPADDING=0 "
 364                                         "BGCOLOR=&quot;#EEEEEE&quot;>");
 365
 366                                 wprintf("<TR><TD>");
 367
 368                                 if (!strcasecmp(cl_user, ":")) {
 369                                         wprintf("<I>");
 370                                 }
 371
 372                                 if (strcasecmp(cl_user, WC->last_chat_user)) {
 373                                         wprintf("<B>");
 374
 375                                         if (!strcasecmp(cl_user, WC->wc_username)) {
 376                                                 wprintf("<FONT COLOR=&quot;#FF0000&quot;>");
 377                                         }
 378                                         else {
 379                                                 wprintf("<FONT COLOR=&quot;#0000FF&quot;>");
 380                                         }
 381                                         jsescputs(cl_user);
 382
 383                                         wprintf("</FONT>: </B>");
 384                                 }
 385                                 else {
 386                                         wprintf("&nbsp;&nbsp;&nbsp;");
 387                                 }
 388                                 jsescputs(cl_text);
 389                                 if (!strcasecmp(cl_user, ":")) {
 390                                         wprintf("</I>");
 391                                 }
 392
 393                                 wprintf("</TD></TR></TABLE>");
 394                                 wprintf("'); \n");
 395
 396                                 strcpy(WC->last_chat_user, cl_user);
 397                         }
 398                 }
 399
 400                 wprintf("parent.chat_transcript.scrollTo(999999,999999);\">\n");
 401         }
 402
 403         free(output_data);
 404
 405         wprintf("</BODY></HTML>\n");
 406         wDumpContent(0);
 407 }
 408
 409
 410 /*
 411  * sending side of the chat window
 412  */
 413 void chat_send(void) {
 414         int i;
 415         char send_this[SIZ];
 416         char buf[SIZ];
 417
 418         output_headers(0, 0, 0, 0, 0, 0);
 419         wprintf("Content-type: text/html; charset=utf-8\n");
 420         wprintf("\n");
 421         wprintf("<HTML>"
 422                 "<BODY onLoad=\"document.chatsendform.send_this.focus();\" >"
 423         );
 424
 425         if (bstr("send_this") != NULL) {
 426                 strcpy(send_this, bstr("send_this"));
 427         }
 428         else {
 429                 strcpy(send_this, "");
 430         }
 431
 432         if (strlen(bstr("help_button")) > 0) {
 433                 strcpy(send_this, "/help");
 434         }
 435
 436         if (strlen(bstr("list_button")) > 0) {
 437                 strcpy(send_this, "/who");
 438         }
 439
 440         if (strlen(bstr("exit_button")) > 0) {
 441                 strcpy(send_this, "/quit");
 442         }
 443
 444         if (setup_chat_socket() != 0) {
 445                 wprintf(_("An error occurred while setting up the chat socket."));
 446                 wprintf("</BODY></HTML>\n");
 447                 wDumpContent(0);
 448                 return;
 449         }
 450
 451         /* Temporarily swap the serv and chat sockets during chat talk */
 452         i = WC->serv_sock;
 453         WC->serv_sock = WC->chat_sock;
 454         WC->chat_sock = i;
 455
 456         while (strlen(send_this) > 0) {
 457                 if (strlen(send_this) < 67) {
 458                         serv_puts(send_this);
 459                         strcpy(send_this, "");
 460                 }
 461                 else {
 462                         for (i=55; i<67; ++i) {
 463                                 if (send_this[i] == ' ') break;
 464                         }
 465                         strncpy(buf, send_this, i);
 466                         buf[i] = 0;
 467                         strcpy(send_this, &send_this[i]);
 468                         serv_puts(buf);
 469                 }
 470         }
 471
 472         /* Unswap the sockets. */
 473         i = WC->serv_sock;
 474         WC->serv_sock = WC->chat_sock;
 475         WC->chat_sock = i;
 476
 477         wprintf("<FORM METHOD=\"POST\" action=\"chat_send\" NAME=\"chatsendform\">\n");
 478         wprintf("<INPUT TYPE=\"text\" SIZE=\"80\" MAXLENGTH=\"%d\" "
 479                 "NAME=\"send_this\">\n", SIZ-10);
 480         wprintf("<br />");
 481         wprintf("<INPUT TYPE=\"submit\" NAME=\"send_button\" VALUE=\"%s\">\n", _("Send"));
 482         wprintf("<INPUT TYPE=\"submit\" NAME=\"help_button\" VALUE=\"%s\">\n", _("Help"));
 483         wprintf("<INPUT TYPE=\"submit\" NAME=\"list_button\" VALUE=\"%s\">\n", _("List users"));
 484         wprintf("<INPUT TYPE=\"submit\" NAME=\"exit_button\" VALUE=\"%s\">\n", _("Exit"));
 485         wprintf("</FORM>\n");
 486
 487         wprintf("</BODY></HTML>\n");
 488         wDumpContent(0);
 489 }
 490