webcit/paging.c

   1 /*
   2  * $Id$
   3  */
   4
   5 #include "webcit.h"
   6
   7 /*
   8  * display the form for paging (x-messaging) another user
   9  */
  10 void display_page(void)
  11 {
  12         char recp[SIZ];
  13
  14         strcpy(recp, bstr("recp"));
  15
  16         output_headers(1, 1, 2, 0, 0, 0);
  17         wprintf("<div id=\"banner\">\n");
  18         wprintf("<h1>");
  19         wprintf(_("Send instant message"));
  20         wprintf("</h1>");
  21         wprintf("</div>\n");
  22
  23         wprintf("<div id=\"content\" class=\"service\">\n");
  24
  25         wprintf("<div class=\"fix_scrollbar_bug\">"
  26                 "<table class=\"paging_background\"><tr><td>\n");
  27
  28         wprintf(_("Send an instant message to: "));
  29         escputs(recp);
  30         wprintf("<br>\n");
  31
  32         wprintf("<FORM METHOD=\"POST\" action=\"page_user\">\n");
  33         wprintf("<input type=\"hidden\" name=\"nonce\" value=\"%d\">\n", WC->nonce);
  34         wprintf("<input type=\"hidden\" name=\"template\" value=\"who\">\n");
  35
  36         wprintf("<TABLE border=0 width=100%%><TR><TD>\n");
  37
  38         wprintf("<INPUT TYPE=\"hidden\" NAME=\"recp\" VALUE=\"");
  39         escputs(recp);
  40         wprintf("\">\n");
  41
  42         wprintf(_("Enter message text:"));
  43         wprintf("<br />");
  44
  45         wprintf("<TEXTAREA NAME=\"msgtext\" wrap=soft ROWS=5 COLS=40 "
  46                 "WIDTH=40></TEXTAREA>\n");
  47
  48         wprintf("</TD></TR></TABLE><br />\n");
  49
  50         wprintf("<INPUT TYPE=\"submit\" NAME=\"send_button\" VALUE=\"%s\">", _("Send message"));
  51         wprintf("<br /><a href=\"javascript:window.close();\"%s</A>\n", _("Cancel"));
  52
  53         wprintf("</FORM></CENTER>\n");
  54         wprintf("</td></tr></table></div>\n");
  55         wDumpContent(1);
  56 }
  57
  58 /**
  59  * \brief page another user
  60  */
  61 void page_user(void)
  62 {
  63         char recp[256];
  64         char buf[256];
  65
  66         safestrncpy(recp, bstr("recp"), sizeof recp);
  67
  68         if (!havebstr("send_button")) {
  69                 safestrncpy(WC->ImportantMessage,
  70                         _("Message was not sent."),
  71                         sizeof WC->ImportantMessage
  72                 );
  73         } else {
  74                 serv_printf("SEXP %s|-", recp);
  75                 serv_getln(buf, sizeof buf);
  76
  77                 if (buf[0] == '4') {
  78                         text_to_server(bstr("msgtext"));
  79                         serv_puts("000");
  80                         stresc(buf, 256, recp, 0, 0);
  81                         snprintf(WC->ImportantMessage,
  82                                 sizeof WC->ImportantMessage,
  83                                 "%s%s.",
  84                                 _("Message has been sent to "),
  85                                 buf
  86                         );
  87                 }
  88                 else {
  89                         safestrncpy(WC->ImportantMessage, &buf[4], sizeof WC->ImportantMessage);
  90                 }
  91         }
  92
  93         url_do_template();
  94 }
  95
  96
  97
  98 /**
  99  * \brief multiuser chat
 100  */
 101 void do_chat(void)
 102 {
 103         char buf[SIZ];
 104
 105         /** First, check to make sure we're still allowed in this room. */
 106         serv_printf("GOTO %s", ChrPtr(WC->wc_roomname));
 107         serv_getln(buf, sizeof buf);
 108         if (buf[0] != '2') {
 109                 StrBuf *Buf;
 110                 Buf = NewStrBufPlain(HKEY("_BASEROOM_"));
 111                 smart_goto(Buf);
 112                 FreeStrBuf(&Buf);
 113                 return;
 114         }
 115
 116         /**
 117          * If the chat socket is still open from a previous chat,
 118          * close it -- because it might be stale or in the wrong room.
 119          */
 120         if (WC->chat_sock < 0) {
 121                 close(WC->chat_sock);
 122                 WC->chat_sock = (-1);
 123         }
 124
 125         /**
 126          * WebCit Chat works by having transmit, receive, and refresh
 127          * frames.  Load the frameset.  (This isn't AJAX but the headers
 128          * output by begin_ajax_response() happen to be the ones we need.)
 129          */
 130         begin_ajax_response();
 131         do_template("chatframeset", NULL);
 132         end_ajax_response();
 133         return;
 134 }
 135
 136
 137 /**
 138  * \brief display page popup
 139  * If there are instant messages waiting, and we notice that we haven't checked them in
 140  * a while, it probably means that we need to open the instant messenger window.
 141  */
 142 void page_popup(void)
 143 {
 144         int len;
 145         char buf[SIZ];
 146
 147         /** JavaScript function to alert the user that popups are probably blocked */
 148         wprintf("<script type=\"text/javascript\">      "
 149                 "function PopUpFailed() {       "
 150                 " alert(\"%s\");        "
 151                 "}      "
 152                 "</script>\n",
 153                 _("You have one or more instant messages waiting, but the Citadel Instant Messenger "
 154                   "window failed to open.  This is probably because you have a popup blocker "
 155                   "installed.  Please configure your popup blocker to allow popups from this site "
 156                   "if you wish to receive instant messages.")
 157         );
 158
 159         /** First, do the check as part of our page load. */
 160         serv_puts("NOOP");
 161         len = serv_getln(buf, sizeof buf);
 162         if ((len >= 3) && (buf[3] == '*')) {
 163                 if ((time(NULL) - WC->last_pager_check) > 60) {
 164                         wprintf("<script type=\"text/javascript\">"
 165                                 " var oWin = window.open('static/instant_messenger.html', "
 166                                 " 'CTDL_MESSENGER', 'width=700,height=400');    "
 167                                 " if (oWin==null || typeof(oWin)==\"undefined\") {      "
 168                                 "  PopUpFailed();       "
 169                                 " }     "
 170                                 "</script>"
 171                         );
 172                 }
 173         }
 174
 175         /** Then schedule it to happen again a minute from now if the user is idle. */
 176         wprintf("<script type=\"text/javascript\">      "
 177                 " function HandleSslp(sslg_xmlresponse) {       "
 178                 "  sslg_response = sslg_xmlresponse.responseText.substr(0, 1);  "
 179                 "  if (sslg_response == 'Y') {  "
 180                 "   var oWin = window.open('static/instant_messenger.html', 'CTDL_MESSENGER',   "
 181                 "    'width=700,height=400');   "
 182                 "   if (oWin==null || typeof(oWin)==\"undefined\") {    "
 183                 "    PopUpFailed();     "
 184                 "   }   "
 185                 "  }    "
 186                 " }     "
 187                 " function CheckPager() {       "
 188                 "  new Ajax.Request('sslg', { method: 'get', parameters: CtdlRandomString(),    "
 189                 "   onSuccess: HandleSslp } );  "
 190                 " }     "
 191                 " new PeriodicalExecuter(CheckPager, 30);       "
 192                 "</script>      "
 193         );
 194 }
 195
 196
 197
 198 /**
 199  * \brief Support function for chat
 200  * make sure the chat socket is connected
 201  * and in chat mode.
 202  */
 203 int setup_chat_socket(void) {
 204         char buf[SIZ];
 205         int i;
 206         int good_chatmode = 0;
 207
 208         if (WC->chat_sock < 0) {
 209
 210                 if (!strcasecmp(ctdlhost, "uds")) {
 211                         /** unix domain socket */
 212                         sprintf(buf, "%s/citadel.socket", ctdlport);
 213                         WC->chat_sock = uds_connectsock(buf);
 214                 }
 215                 else {
 216                         /** tcp socket */
 217                         WC->chat_sock = tcp_connectsock(ctdlhost, ctdlport);
 218                 }
 219
 220                 if (WC->chat_sock < 0) {
 221                         return(errno);
 222                 }
 223
 224                 /** Temporarily swap the serv and chat sockets during chat talk */
 225                 i = WC->serv_sock;
 226                 WC->serv_sock = WC->chat_sock;
 227                 WC->chat_sock = i;
 228
 229                 serv_getln(buf, sizeof buf);
 230                 if (buf[0] == '2') {
 231                         serv_printf("USER %s", ChrPtr(WC->wc_username));
 232                         serv_getln(buf, sizeof buf);
 233                         if (buf[0] == '3') {
 234                                 serv_printf("PASS %s", ChrPtr(WC->wc_password));
 235                                 serv_getln(buf, sizeof buf);
 236                                 if (buf[0] == '2') {
 237                                         serv_printf("GOTO %s", ChrPtr(WC->wc_roomname));
 238                                         serv_getln(buf, sizeof buf);
 239                                         if (buf[0] == '2') {
 240                                                 serv_puts("CHAT");
 241                                                 serv_getln(buf, sizeof buf);
 242                                                 if (buf[0] == '8') {
 243                                                         good_chatmode = 1;
 244                                                 }
 245                                         }
 246                                 }
 247                         }
 248                 }
 249
 250                 /** Unswap the sockets. */
 251                 i = WC->serv_sock;
 252                 WC->serv_sock = WC->chat_sock;
 253                 WC->chat_sock = i;
 254
 255                 if (!good_chatmode) close(WC->serv_sock);
 256
 257         }
 258         return(0);
 259 }
 260
 261
 262
 263 /**
 264  * \brief Receiving side of the chat window.
 265  * This is implemented in a
 266  * tiny hidden IFRAME that just does JavaScript writes to
 267  * other frames whenever it refreshes and finds new data.
 268  */
 269 void chat_recv(void) {
 270         int i;
 271         struct pollfd pf;
 272         int got_data = 0;
 273         int end_chat_now = 0;
 274         char buf[SIZ];
 275         char cl_user[SIZ];
 276         char cl_text[SIZ];
 277         char *output_data = NULL;
 278
 279         output_headers(0, 0, 0, 0, 0, 0);
 280
 281         hprintf("Content-type: text/html; charset=utf-8\r\n");
 282         wprintf("<html>\n"
 283                 "<head>\n"
 284                 "<meta http-equiv=\"refresh\" content=\"3\" />\n"
 285                 "</head>\n"
 286
 287                 "<body bgcolor=\"#FFFFFF\">\n"
 288         );
 289
 290         if (setup_chat_socket() != 0) {
 291                 wprintf(_("An error occurred while setting up the chat socket."));
 292                 wprintf("</BODY></HTML>\n");
 293                 wDumpContent(0);
 294                 return;
 295         }
 296
 297         /**
 298          * See if there is any chat data waiting.
 299          */
 300         output_data = strdup("");
 301         do {
 302                 got_data = 0;
 303                 pf.fd = WC->chat_sock;
 304                 pf.events = POLLIN;
 305                 pf.revents = 0;
 306                 if ((poll(&pf, 1, 1) > 0) && (pf.revents & POLLIN)) {
 307                         ++got_data;
 308
 309                         /** Temporarily swap the serv and chat sockets during chat talk */
 310                         i = WC->serv_sock;
 311                         WC->serv_sock = WC->chat_sock;
 312                         WC->chat_sock = i;
 313
 314                         serv_getln(buf, sizeof buf);
 315
 316                         if (!strcmp(buf, "000")) {
 317                                 strcpy(buf, ":|");
 318                                 strcat(buf, _("Now exiting chat mode."));
 319                                 end_chat_now = 1;
 320                         }
 321
 322                         /** Unswap the sockets. */
 323                         i = WC->serv_sock;
 324                         WC->serv_sock = WC->chat_sock;
 325                         WC->chat_sock = i;
 326
 327                         /** Append our output data */
 328                         output_data = realloc(output_data, strlen(output_data) + strlen(buf) + 4);
 329                         strcat(output_data, buf);
 330                         strcat(output_data, "\n");
 331                 }
 332
 333         } while ( (got_data) && (!end_chat_now) );
 334
 335         if (end_chat_now) {
 336                 close(WC->chat_sock);
 337                 WC->chat_sock = (-1);
 338                 wprintf("<img src=\"static/blank.gif\" onLoad=\"parent.window.close();\">\n");
 339         }
 340
 341         if (!IsEmptyStr(output_data)) {
 342                 int len;
 343                 len = strlen(output_data);
 344                 if (output_data[len-1] == '\n') {
 345                         output_data[len-1] = 0;
 346                 }
 347
 348                 /** Output our fun to the other frame. */
 349                 wprintf("<img src=\"static/blank.gif\" WIDTH=1 HEIGHT=1\n"
 350                         "onLoad=\" \n"
 351                 );
 352
 353                 for (i=0; i<num_tokens(output_data, '\n'); ++i) {
 354                         extract_token(buf, output_data, i, '\n', sizeof buf);
 355                         extract_token(cl_user, buf, 0, '|', sizeof cl_user);
 356                         extract_token(cl_text, buf, 1, '|', sizeof cl_text);
 357
 358                         if (strcasecmp(cl_text, "NOOP")) {
 359
 360                                 wprintf("parent.chat_transcript.document.write('");
 361
 362                                 if (strcasecmp(cl_user, WC->last_chat_user)) {
 363                                         wprintf("<TABLE border=0 WIDTH=100%% "
 364                                                 "CELLSPACING=1 CELLPADDING=0 "
 365                                                 "BGCOLOR=&quot;#FFFFFF&quot;>"
 366                                                 "<TR><TD></TR></TD></TABLE>"
 367                                         );
 368
 369                                 }
 370
 371                                 wprintf("<TABLE border=0 WIDTH=100%% "
 372                                         "CELLSPACING=0 CELLPADDING=0 "
 373                                         "BGCOLOR=&quot;#EEEEEE&quot;>");
 374
 375                                 wprintf("<TR><TD>");
 376
 377                                 if (!strcasecmp(cl_user, ":")) {
 378                                         wprintf("<I>");
 379                                 }
 380
 381                                 if (strcasecmp(cl_user, WC->last_chat_user)) {
 382                                         wprintf("<B>");
 383
 384                                         if (!strcasecmp(cl_user, ChrPtr(WC->wc_fullname))) {
 385                                                 wprintf("<FONT COLOR=&quot;#FF0000&quot;>");
 386                                         }
 387                                         else {
 388                                                 wprintf("<FONT COLOR=&quot;#0000FF&quot;>");
 389                                         }
 390                                         jsescputs(cl_user);
 391
 392                                         wprintf("</FONT>: </B>");
 393                                 }
 394                                 else {
 395                                         wprintf("&nbsp;&nbsp;&nbsp;");
 396                                 }
 397                                 jsescputs(cl_text);
 398                                 if (!strcasecmp(cl_user, ":")) {
 399                                         wprintf("</I>");
 400                                 }
 401
 402                                 wprintf("</TD></TR></TABLE>");
 403                                 wprintf("'); \n");
 404
 405                                 strcpy(WC->last_chat_user, cl_user);
 406                         }
 407                 }
 408
 409                 wprintf("parent.chat_transcript.scrollTo(999999,999999);\">\n");
 410         }
 411
 412         free(output_data);
 413
 414         wprintf("</BODY></HTML>\n");
 415         wDumpContent(0);
 416 }
 417
 418
 419 /**
 420  * \brief sending side of the chat window
 421  */
 422 void chat_send(void) {
 423         int i;
 424         char send_this[SIZ];
 425         char buf[SIZ];
 426
 427         output_headers(0, 0, 0, 0, 0, 0);
 428         hprintf("Content-type: text/html; charset=utf-8\r\n");
 429         wprintf("<HTML>"
 430                 "<BODY onLoad=\"document.chatsendform.send_this.focus();\" >"
 431         );
 432
 433         if (havebstr("send_this")) {
 434                 strcpy(send_this, bstr("send_this"));
 435         }
 436         else {
 437                 strcpy(send_this, "");
 438         }
 439
 440         if (havebstr("help_button")) {
 441                 strcpy(send_this, "/help");
 442         }
 443
 444         if (havebstr("list_button")) {
 445                 strcpy(send_this, "/who");
 446         }
 447
 448         if (havebstr("exit_button")) {
 449                 strcpy(send_this, "/quit");
 450         }
 451
 452         if (setup_chat_socket() != 0) {
 453                 wprintf(_("An error occurred while setting up the chat socket."));
 454                 wprintf("</BODY></HTML>\n");
 455                 wDumpContent(0);
 456                 return;
 457         }
 458
 459         /** Temporarily swap the serv and chat sockets during chat talk */
 460         i = WC->serv_sock;
 461         WC->serv_sock = WC->chat_sock;
 462         WC->chat_sock = i;
 463
 464         while (!IsEmptyStr(send_this)) {
 465                 if (strlen(send_this) < 67) {
 466                         serv_puts(send_this);
 467                         strcpy(send_this, "");
 468                 }
 469                 else {
 470                         for (i=55; i<67; ++i) {
 471                                 if (send_this[i] == ' ') break;
 472                         }
 473                         strncpy(buf, send_this, i);
 474                         buf[i] = 0;
 475                         strcpy(send_this, &send_this[i]);
 476                         serv_puts(buf);
 477                 }
 478         }
 479
 480         /** Unswap the sockets. */
 481         i = WC->serv_sock;
 482         WC->serv_sock = WC->chat_sock;
 483         WC->chat_sock = i;
 484
 485         wprintf("<FORM METHOD=\"POST\" action=\"chat_send\" NAME=\"chatsendform\">\n");
 486         wprintf("<input type=\"hidden\" name=\"nonce\" value=\"%d\">\n", WC->nonce);
 487         wprintf("<INPUT TYPE=\"text\" SIZE=\"80\" MAXLENGTH=\"%d\" "
 488                 "NAME=\"send_this\">\n", SIZ-10);
 489         wprintf("<br />");
 490         wprintf("<INPUT TYPE=\"submit\" NAME=\"send_button\" VALUE=\"%s\">\n", _("Send"));
 491         wprintf("<INPUT TYPE=\"submit\" NAME=\"help_button\" VALUE=\"%s\">\n", _("Help"));
 492         wprintf("<INPUT TYPE=\"submit\" NAME=\"list_button\" VALUE=\"%s\">\n", _("List users"));
 493         wprintf("<INPUT TYPE=\"submit\" NAME=\"exit_button\" VALUE=\"%s\">\n", _("Exit"));
 494         wprintf("</FORM>\n");
 495
 496         wprintf("</BODY></HTML>\n");
 497         wDumpContent(0);
 498 }
 499
 500
 501 void ajax_send_instant_message(void) {
 502         char recp[256];
 503         char buf[256];
 504
 505         safestrncpy(recp, bstr("recp"), sizeof recp);
 506
 507         serv_printf("SEXP %s|-", recp);
 508         serv_getln(buf, sizeof buf);
 509
 510         if (buf[0] == '4') {
 511                 text_to_server(bstr("msg"));
 512                 serv_puts("000");
 513         }
 514
 515         escputs(buf);   /* doesn't really matter what we return - the client ignores it */
 516 }
 517
 518
 519 void
 520 InitModule_PAGING
 521 (void)
 522 {
 523         WebcitAddUrlHandler(HKEY("display_page"), display_page, 0);
 524         WebcitAddUrlHandler(HKEY("page_user"), page_user, 0);
 525         WebcitAddUrlHandler(HKEY("chat"), do_chat, 0);
 526         WebcitAddUrlHandler(HKEY("chat_recv"), chat_recv, 0);
 527         WebcitAddUrlHandler(HKEY("chat_send"), chat_send, 0);
 528         WebcitAddUrlHandler(HKEY("ajax_send_instant_message"), ajax_send_instant_message, AJAX);
 529 }