mod/chat/lib.php

   1 <?php
   2
   3 // This file is part of Moodle - http://moodle.org/
   4 //
   5 // Moodle is free software: you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation, either version 3 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // Moodle is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License
  16 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 /**
  19  * Library of functions and constants for module chat
  20  *
  21  * @package   mod-chat
  22  * @copyright 1999 onwards Martin Dougiamas  {@link http://moodle.com}
  23  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24  */
  25
  26 require_once($CFG->dirroot.'/calendar/lib.php');
  27
  28 // The HTML head for the message window to start with (<!-- nix --> is used to get some browsers starting with output
  29 global $CHAT_HTMLHEAD;
  30 $CHAT_HTMLHEAD = "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\" \"http://www.w3.org/TR/REC-html40/loose.dtd\"><html><head></head>\n<body>\n\n".padding(200);
  31
  32 // The HTML head for the message window to start with (with js scrolling)
  33 global $CHAT_HTMLHEAD_JS;
  34 $CHAT_HTMLHEAD_JS = <<<EOD
  35 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
  36 <html><head><script type="text/javascript">
  37 //<![CDATA[
  38 function move(){
  39     if (scroll_active)
  40         window.scroll(1,400000);
  41     window.setTimeout("move()",100);
  42 }
  43 var scroll_active = true;
  44 move();
  45 //]]>
  46 </script>
  47 </head>
  48 <body onBlur="scroll_active = true" onFocus="scroll_active = false">
  49 EOD;
  50 global $CHAT_HTMLHEAD_JS;
  51 $CHAT_HTMLHEAD_JS .= padding(200);
  52
  53 // The HTML code for standard empty pages (e.g. if a user was kicked out)
  54 global $CHAT_HTMLHEAD_OUT;
  55 $CHAT_HTMLHEAD_OUT = "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\" \"http://www.w3.org/TR/REC-html40/loose.dtd\"><html><head><title>You are out!</title></head><body></body></html>";
  56
  57 // The HTML head for the message input page
  58 global $CHAT_HTMLHEAD_MSGINPUT;
  59 $CHAT_HTMLHEAD_MSGINPUT = "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\" \"http://www.w3.org/TR/REC-html40/loose.dtd\"><html><head><title>Message Input</title></head><body>";
  60
  61 // The HTML code for the message input page, with JavaScript
  62 global $CHAT_HTMLHEAD_MSGINPUT_JS;
  63 $CHAT_HTMLHEAD_MSGINPUT_JS = <<<EOD
  64 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
  65 <html>
  66     <head><title>Message Input</title>
  67     <script type="text/javascript">
  68     //<![CDATA[
  69     scroll_active = true;
  70     function empty_field_and_submit(){
  71         document.fdummy.arsc_message.value=document.f.arsc_message.value;
  72         document.fdummy.submit();
  73         document.f.arsc_message.focus();
  74         document.f.arsc_message.select();
  75         return false;
  76     }
  77     //]]>
  78     </script>
  79     </head><body OnLoad="document.f.arsc_message.focus();document.f.arsc_message.select();">;
  80 EOD;
  81
  82 // Dummy data that gets output to the browser as needed, in order to make it show output
  83 global $CHAT_DUMMY_DATA;
  84 $CHAT_DUMMY_DATA = padding(200);
  85
  86 /**
  87  * @param int $n
  88  * @return string
  89  */
  90 function padding($n){
  91     $str = '';
  92     for($i=0; $i<$n; $i++){
  93         $str.="<!-- nix -->\n";
  94     }
  95     return $str;
  96 }
  97
  98 /**
  99  * Given an object containing all the necessary data,
 100  * (defined by the form in mod_form.php) this function
 101  * will create a new instance and return the id number
 102  * of the new instance.
 103  *
 104  * @global object
 105  * @param object $chat
 106  * @return int
 107  */
 108 function chat_add_instance($chat) {
 109     global $DB;
 110
 111     $chat->timemodified = time();
 112
 113     $returnid = $DB->insert_record("chat", $chat);
 114
 115     $event = new stdClass();
 116     $event->name        = $chat->name;
 117     $event->description = format_module_intro('chat', $chat, $chat->coursemodule);
 118     $event->courseid    = $chat->course;
 119     $event->groupid     = 0;
 120     $event->userid      = 0;
 121     $event->modulename  = 'chat';
 122     $event->instance    = $returnid;
 123     $event->eventtype   = 'chattime';
 124     $event->timestart   = $chat->chattime;
 125     $event->timeduration = 0;
 126
 127     calendar_event::create($event);
 128
 129     return $returnid;
 130 }
 131
 132 /**
 133  * Given an object containing all the necessary data,
 134  * (defined by the form in mod_form.php) this function
 135  * will update an existing instance with new data.
 136  *
 137  * @global object
 138  * @param object $chat
 139  * @return bool
 140  */
 141 function chat_update_instance($chat) {
 142     global $DB;
 143
 144     $chat->timemodified = time();
 145     $chat->id = $chat->instance;
 146
 147
 148     $DB->update_record("chat", $chat);
 149
 150     $event = new stdClass();
 151
 152     if ($event->id = $DB->get_field('event', 'id', array('modulename'=>'chat', 'instance'=>$chat->id))) {
 153
 154         $event->name        = $chat->name;
 155         $event->description = format_module_intro('chat', $chat, $chat->coursemodule);
 156         $event->timestart   = $chat->chattime;
 157
 158         $calendarevent = calendar_event::load($event->id);
 159         $calendarevent->update($event);
 160     }
 161
 162     return true;
 163 }
 164
 165 /**
 166  * Given an ID of an instance of this module,
 167  * this function will permanently delete the instance
 168  * and any data that depends on it.
 169  *
 170  * @global object
 171  * @param int $id
 172  * @return bool
 173  */
 174 function chat_delete_instance($id) {
 175     global $DB;
 176
 177
 178     if (! $chat = $DB->get_record('chat', array('id'=>$id))) {
 179         return false;
 180     }
 181
 182     $result = true;
 183
 184     // Delete any dependent records here
 185
 186     if (! $DB->delete_records('chat', array('id'=>$chat->id))) {
 187         $result = false;
 188     }
 189     if (! $DB->delete_records('chat_messages', array('chatid'=>$chat->id))) {
 190         $result = false;
 191     }
 192     if (! $DB->delete_records('chat_messages_current', array('chatid'=>$chat->id))) {
 193         $result = false;
 194     }
 195     if (! $DB->delete_records('chat_users', array('chatid'=>$chat->id))) {
 196         $result = false;
 197     }
 198
 199     if (! $DB->delete_records('event', array('modulename'=>'chat', 'instance'=>$chat->id))) {
 200         $result = false;
 201     }
 202
 203     return $result;
 204 }
 205
 206 /**
 207  * Return a small object with summary information about what a
 208  * user has done with a given particular instance of this module
 209  * Used for user activity reports.
 210  * <code>
 211  * $return->time = the time they did it
 212  * $return->info = a short text description
 213  * </code>
 214  *
 215  * @param object $course
 216  * @param object $user
 217  * @param object $mod
 218  * @param object $chat
 219  * @return void
 220  */
 221 function chat_user_outline($course, $user, $mod, $chat) {
 222     return NULL;
 223 }
 224
 225 /**
 226  * Print a detailed representation of what a  user has done with
 227  * a given particular instance of this module, for user activity reports.
 228  *
 229  * @param object $course
 230  * @param object $user
 231  * @param object $mod
 232  * @param object $chat
 233  * @return bool
 234  */
 235 function chat_user_complete($course, $user, $mod, $chat) {
 236     return true;
 237 }
 238
 239 /**
 240  * Given a course and a date, prints a summary of all chat rooms past and present
 241  * This function is called from course/lib.php: print_recent_activity()
 242  *
 243  * @global object
 244  * @global object
 245  * @global object
 246  * @param object $course
 247  * @param bool $viewfullnames
 248  * @param int|string $timestart Timestamp
 249  * @return bool
 250  */
 251 function chat_print_recent_activity($course, $viewfullnames, $timestart) {
 252     global $CFG, $USER, $DB, $OUTPUT;
 253
 254     // this is approximate only, but it is really fast ;-)
 255     $timeout = $CFG->chat_old_ping * 10;
 256
 257     if (!$mcms = $DB->get_records_sql("SELECT cm.id, MAX(chm.timestamp) AS lasttime
 258                                          FROM {course_modules} cm
 259                                          JOIN {modules} md        ON md.id = cm.module
 260                                          JOIN {chat} ch           ON ch.id = cm.instance
 261                                          JOIN {chat_messages} chm ON chm.chatid = ch.id
 262                                         WHERE chm.timestamp > ? AND ch.course = ? AND md.name = 'chat'
 263                                      GROUP BY cm.id
 264                                      ORDER BY lasttime ASC", array($timestart, $course->id))) {
 265          return false;
 266     }
 267
 268     $past     = array();
 269     $current  = array();
 270     $modinfo = get_fast_modinfo($course); // reference needed because we might load the groups
 271
 272     foreach ($mcms as $cmid=>$mcm) {
 273         if (!array_key_exists($cmid, $modinfo->cms)) {
 274             continue;
 275         }
 276         $cm = $modinfo->cms[$cmid];
 277         $cm->lasttime = $mcm->lasttime;
 278         if (!$modinfo->cms[$cm->id]->uservisible) {
 279             continue;
 280         }
 281
 282         if (groups_get_activity_groupmode($cm) != SEPARATEGROUPS
 283          or has_capability('moodle/site:accessallgroups', context_module::instance($cm->id))) {
 284             if ($timeout > time() - $cm->lasttime) {
 285                 $current[] = $cm;
 286             } else {
 287                 $past[] = $cm;
 288             }
 289
 290             continue;
 291         }
 292
 293         if (is_null($modinfo->groups)) {
 294             $modinfo->groups = groups_get_user_groups($course->id); // load all my groups and cache it in modinfo
 295         }
 296
 297         // verify groups in separate mode
 298         if (!$mygroupids = $modinfo->groups[$cm->groupingid]) {
 299             continue;
 300         }
 301
 302         // ok, last post was not for my group - we have to query db to get last message from one of my groups
 303         // only minor problem is that the order will not be correct
 304         $mygroupids = implode(',', $mygroupids);
 305         $cm->mygroupids = $mygroupids;
 306
 307         if (!$mcm = $DB->get_record_sql("SELECT cm.id, MAX(chm.timestamp) AS lasttime
 308                                            FROM {course_modules} cm
 309                                            JOIN {chat} ch           ON ch.id = cm.instance
 310                                            JOIN {chat_messages_current} chm ON chm.chatid = ch.id
 311                                           WHERE chm.timestamp > ? AND cm.id = ? AND
 312                                                 (chm.groupid IN ($mygroupids) OR chm.groupid = 0)
 313                                        GROUP BY cm.id", array($timestart, $cm->id))) {
 314              continue;
 315         }
 316
 317         $cm->lasttime = $mcm->lasttime;
 318         if ($timeout > time() - $cm->lasttime) {
 319             $current[] = $cm;
 320         } else {
 321             $past[] = $cm;
 322         }
 323     }
 324
 325     if (!$past and !$current) {
 326         return false;
 327     }
 328
 329     $strftimerecent = get_string('strftimerecent');
 330
 331     if ($past) {
 332         echo $OUTPUT->heading(get_string("pastchats", 'chat').':');
 333
 334         foreach ($past as $cm) {
 335             $link = $CFG->wwwroot.'/mod/chat/view.php?id='.$cm->id;
 336             $date = userdate($cm->lasttime, $strftimerecent);
 337             echo '<div class="head"><div class="date">'.$date.'</div></div>';
 338             echo '<div class="info"><a href="'.$link.'">'.format_string($cm->name,true).'</a></div>';
 339         }
 340     }
 341
 342     if ($current) {
 343         echo $OUTPUT->heading(get_string("currentchats", 'chat').':');
 344
 345         $oldest = floor((time()-$CFG->chat_old_ping)/10)*10;  // better db caching
 346
 347         $timeold    = time() - $CFG->chat_old_ping;
 348         $timeold    = floor($timeold/10)*10;  // better db caching
 349         $timeoldext = time() - ($CFG->chat_old_ping*10); // JSless gui_basic needs much longer timeouts
 350         $timeoldext = floor($timeoldext/10)*10;  // better db caching
 351
 352         $params = array('timeold'=>$timeold, 'timeoldext'=>$timeoldext, 'cmid'=>$cm->id);
 353
 354         $timeout = "AND (chu.version<>'basic' AND chu.lastping>:timeold) OR (chu.version='basic' AND chu.lastping>:timeoldext)";
 355
 356         foreach ($current as $cm) {
 357             //count users first
 358             if (isset($cm->mygroupids)) {
 359                 $groupselect = "AND (chu.groupid IN ({$cm->mygroupids}) OR chu.groupid = 0)";
 360             } else {
 361                 $groupselect = "";
 362             }
 363
 364             if (!$users = $DB->get_records_sql("SELECT u.id, u.firstname, u.lastname, u.email, u.picture
 365                                                   FROM {course_modules} cm
 366                                                   JOIN {chat} ch        ON ch.id = cm.instance
 367                                                   JOIN {chat_users} chu ON chu.chatid = ch.id
 368                                                   JOIN {user} u         ON u.id = chu.userid
 369                                                  WHERE cm.id = :cmid $timeout $groupselect
 370                                               GROUP BY u.id, u.firstname, u.lastname, u.email, u.picture", $params)) {
 371             }
 372
 373             $link = $CFG->wwwroot.'/mod/chat/view.php?id='.$cm->id;
 374             $date = userdate($cm->lasttime, $strftimerecent);
 375
 376             echo '<div class="head"><div class="date">'.$date.'</div></div>';
 377             echo '<div class="info"><a href="'.$link.'">'.format_string($cm->name,true).'</a></div>';
 378             echo '<div class="userlist">';
 379             if ($users) {
 380                 echo '<ul>';
 381                     foreach ($users as $user) {
 382                         echo '<li>'.fullname($user, $viewfullnames).'</li>';
 383                     }
 384                 echo '</ul>';
 385             }
 386             echo '</div>';
 387         }
 388     }
 389
 390     return true;
 391 }
 392
 393 /**
 394  * Function to be run periodically according to the moodle cron
 395  * This function searches for things that need to be done, such
 396  * as sending out mail, toggling flags etc ...
 397  *
 398  * @global object
 399  * @return bool
 400  */
 401 function chat_cron () {
 402     global $DB;
 403
 404     chat_update_chat_times();
 405
 406     chat_delete_old_users();
 407
 408     /// Delete old messages with a
 409     /// single SQL query.
 410     $subselect = "SELECT c.keepdays
 411                     FROM {chat} c
 412                    WHERE c.id = {chat_messages}.chatid";
 413
 414     $sql = "DELETE
 415               FROM {chat_messages}
 416              WHERE ($subselect) > 0 AND timestamp < ( ".time()." -($subselect) * 24 * 3600)";
 417
 418     $DB->execute($sql);
 419
 420     $sql = "DELETE
 421               FROM {chat_messages_current}
 422              WHERE timestamp < ( ".time()." - 8 * 3600)";
 423
 424     $DB->execute($sql);
 425
 426     return true;
 427 }
 428
 429 /**
 430  * This standard function will check all instances of this module
 431  * and make sure there are up-to-date events created for each of them.
 432  * If courseid = 0, then every chat event in the site is checked, else
 433  * only chat events belonging to the course specified are checked.
 434  * This function is used, in its new format, by restore_refresh_events()
 435  *
 436  * @global object
 437  * @param int $courseid
 438  * @return bool
 439  */
 440 function chat_refresh_events($courseid = 0) {
 441     global $DB;
 442
 443     if ($courseid) {
 444         if (! $chats = $DB->get_records("chat", array("course"=>$courseid))) {
 445             return true;
 446         }
 447     } else {
 448         if (! $chats = $DB->get_records("chat")) {
 449             return true;
 450         }
 451     }
 452     $moduleid = $DB->get_field('modules', 'id', array('name'=>'chat'));
 453
 454     foreach ($chats as $chat) {
 455         $cm = get_coursemodule_from_id('chat', $chat->id);
 456         $event = new stdClass();
 457         $event->name        = $chat->name;
 458         $event->description = format_module_intro('chat', $chat, $cm->id);
 459         $event->timestart   = $chat->chattime;
 460
 461         if ($event->id = $DB->get_field('event', 'id', array('modulename'=>'chat', 'instance'=>$chat->id))) {
 462             $calendarevent = calendar_event::load($event->id);
 463             $calendarevent->update($event);
 464         } else {
 465             $event->courseid    = $chat->course;
 466             $event->groupid     = 0;
 467             $event->userid      = 0;
 468             $event->modulename  = 'chat';
 469             $event->instance    = $chat->id;
 470             $event->eventtype   = 'chattime';
 471             $event->timeduration = 0;
 472             $event->visible     = $DB->get_field('course_modules', 'visible', array('module'=>$moduleid, 'instance'=>$chat->id));
 473
 474             calendar_event::create($event);
 475         }
 476     }
 477     return true;
 478 }
 479
 480
 481 //////////////////////////////////////////////////////////////////////
 482 /// Functions that require some SQL
 483
 484 /**
 485  * @global object
 486  * @param int $chatid
 487  * @param int $groupid
 488  * @param int $groupingid
 489  * @return array
 490  */
 491 function chat_get_users($chatid, $groupid=0, $groupingid=0) {
 492     global $DB;
 493
 494     $params = array('chatid'=>$chatid, 'groupid'=>$groupid, 'groupingid'=>$groupingid);
 495
 496     if ($groupid) {
 497         $groupselect = " AND (c.groupid=:groupid OR c.groupid='0')";
 498     } else {
 499         $groupselect = "";
 500     }
 501
 502     if (!empty($groupingid)) {
 503         $groupingjoin = "JOIN {groups_members} gm ON u.id = gm.userid
 504                          JOIN {groupings_groups} gg ON gm.groupid = gg.groupid AND gg.groupingid = :groupingid ";
 505
 506     } else {
 507         $groupingjoin = '';
 508     }
 509
 510     $ufields = user_picture::fields('u');
 511     return $DB->get_records_sql("SELECT DISTINCT $ufields, c.lastmessageping, c.firstping
 512                                    FROM {chat_users} c
 513                                    JOIN {user} u ON u.id = c.userid $groupingjoin
 514                                   WHERE c.chatid = :chatid $groupselect
 515                                ORDER BY c.firstping ASC", $params);
 516 }
 517
 518 /**
 519  * @global object
 520  * @param int $chatid
 521  * @param int $groupid
 522  * @return array
 523  */
 524 function chat_get_latest_message($chatid, $groupid=0) {
 525     global $DB;
 526
 527     $params = array('chatid'=>$chatid, 'groupid'=>$groupid);
 528
 529     if ($groupid) {
 530         $groupselect = "AND (groupid=:groupid OR groupid=0)";
 531     } else {
 532         $groupselect = "";
 533     }
 534
 535     $sql = "SELECT *
 536         FROM {chat_messages_current} WHERE chatid = :chatid $groupselect
 537         ORDER BY timestamp DESC";
 538
 539     // return the lastest one message
 540     return $DB->get_record_sql($sql, $params, true);
 541 }
 542
 543
 544 //////////////////////////////////////////////////////////////////////
 545 // login if not already logged in
 546
 547 /**
 548  * login if not already logged in
 549  *
 550  * @global object
 551  * @global object
 552  * @param int $chatid
 553  * @param string $version
 554  * @param int $groupid
 555  * @param object $course
 556  * @return bool|int Returns the chat users sid or false
 557  */
 558 function chat_login_user($chatid, $version, $groupid, $course) {
 559     global $USER, $DB;
 560
 561     if (($version != 'sockets') and $chatuser = $DB->get_record('chat_users', array('chatid'=>$chatid, 'userid'=>$USER->id, 'groupid'=>$groupid))) {
 562         // this will update logged user information
 563         $chatuser->version  = $version;
 564         $chatuser->ip       = $USER->lastip;
 565         $chatuser->lastping = time();
 566         $chatuser->lang     = current_language();
 567
 568         // Sometimes $USER->lastip is not setup properly
 569         // during login. Update with current value if possible
 570         // or provide a dummy value for the db
 571         if (empty($chatuser->ip)) {
 572             $chatuser->ip = getremoteaddr();
 573         }
 574
 575         if (($chatuser->course != $course->id) or ($chatuser->userid != $USER->id)) {
 576             return false;
 577         }
 578         $DB->update_record('chat_users', $chatuser);
 579
 580     } else {
 581         $chatuser = new stdClass();
 582         $chatuser->chatid   = $chatid;
 583         $chatuser->userid   = $USER->id;
 584         $chatuser->groupid  = $groupid;
 585         $chatuser->version  = $version;
 586         $chatuser->ip       = $USER->lastip;
 587         $chatuser->lastping = $chatuser->firstping = $chatuser->lastmessageping = time();
 588         $chatuser->sid      = random_string(32);
 589         $chatuser->course   = $course->id; //caching - needed for current_language too
 590         $chatuser->lang     = current_language(); //caching - to resource intensive to find out later
 591
 592         // Sometimes $USER->lastip is not setup properly
 593         // during login. Update with current value if possible
 594         // or provide a dummy value for the db
 595         if (empty($chatuser->ip)) {
 596             $chatuser->ip = getremoteaddr();
 597         }
 598
 599
 600         $DB->insert_record('chat_users', $chatuser);
 601
 602         if ($version == 'sockets') {
 603             // do not send 'enter' message, chatd will do it
 604         } else {
 605             $message = new stdClass();
 606             $message->chatid    = $chatuser->chatid;
 607             $message->userid    = $chatuser->userid;
 608             $message->groupid   = $groupid;
 609             $message->message   = 'enter';
 610             $message->system    = 1;
 611             $message->timestamp = time();
 612
 613             $DB->insert_record('chat_messages', $message);
 614             $DB->insert_record('chat_messages_current', $message);
 615         }
 616     }
 617
 618     return $chatuser->sid;
 619 }
 620
 621 /**
 622  * Delete the old and in the way
 623  *
 624  * @global object
 625  * @global object
 626  */
 627 function chat_delete_old_users() {
 628 // Delete the old and in the way
 629     global $CFG, $DB;
 630
 631     $timeold = time() - $CFG->chat_old_ping;
 632     $timeoldext = time() - ($CFG->chat_old_ping*10); // JSless gui_basic needs much longer timeouts
 633
 634     $query = "(version<>'basic' AND lastping<?) OR (version='basic' AND lastping<?)";
 635     $params = array($timeold, $timeoldext);
 636
 637     if ($oldusers = $DB->get_records_select('chat_users', $query, $params) ) {
 638         $DB->delete_records_select('chat_users', $query, $params);
 639         foreach ($oldusers as $olduser) {
 640             $message = new stdClass();
 641             $message->chatid    = $olduser->chatid;
 642             $message->userid    = $olduser->userid;
 643             $message->groupid   = $olduser->groupid;
 644             $message->message   = 'exit';
 645             $message->system    = 1;
 646             $message->timestamp = time();
 647
 648             $DB->insert_record('chat_messages', $message);
 649             $DB->insert_record('chat_messages_current', $message);
 650         }
 651     }
 652 }
 653
 654 /**
 655  * Updates chat records so that the next chat time is correct
 656  *
 657  * @global object
 658  * @param int $chatid
 659  * @return void
 660  */
 661 function chat_update_chat_times($chatid=0) {
 662 /// Updates chat records so that the next chat time is correct
 663     global $DB;
 664
 665     $timenow = time();
 666
 667     $params = array('timenow'=>$timenow, 'chatid'=>$chatid);
 668
 669     if ($chatid) {
 670         if (!$chats[] = $DB->get_record_select("chat", "id = :chatid AND chattime <= :timenow AND schedule > 0", $params)) {
 671             return;
 672         }
 673     } else {
 674         if (!$chats = $DB->get_records_select("chat", "chattime <= :timenow AND schedule > 0", $params)) {
 675             return;
 676         }
 677     }
 678
 679     foreach ($chats as $chat) {
 680         switch ($chat->schedule) {
 681             case 1: // Single event - turn off schedule and disable
 682                     $chat->chattime = 0;
 683                     $chat->schedule = 0;
 684                     break;
 685             case 2: // Repeat daily
 686                     while ($chat->chattime <= $timenow) {
 687                         $chat->chattime += 24 * 3600;
 688                     }
 689                     break;
 690             case 3: // Repeat weekly
 691                     while ($chat->chattime <= $timenow) {
 692                         $chat->chattime += 7 * 24 * 3600;
 693                     }
 694                     break;
 695         }
 696         $DB->update_record("chat", $chat);
 697
 698         $event = new stdClass();           // Update calendar too
 699
 700         $cond = "modulename='chat' AND instance = :chatid AND timestart <> :chattime";
 701         $params = array('chattime'=>$chat->chattime, 'chatid'=>$chatid);
 702
 703         if ($event->id = $DB->get_field_select('event', 'id', $cond, $params)) {
 704             $event->timestart   = $chat->chattime;
 705             $calendarevent = calendar_event::load($event->id);
 706             $calendarevent->update($event, false);
 707         }
 708     }
 709 }
 710
 711 /**
 712  * @global object
 713  * @global object
 714  * @param object $message
 715  * @param int $courseid
 716  * @param object $sender
 717  * @param object $currentuser
 718  * @param string $chat_lastrow
 719  * @return bool|string Returns HTML or false
 720  */
 721 function chat_format_message_manually($message, $courseid, $sender, $currentuser, $chat_lastrow=NULL) {
 722     global $CFG, $USER, $OUTPUT;
 723
 724     $output = new stdClass();
 725     $output->beep = false;       // by default
 726     $output->refreshusers = false; // by default
 727
 728     // Use get_user_timezone() to find the correct timezone for displaying this message:
 729     // It's either the current user's timezone or else decided by some Moodle config setting
 730     // First, "reset" $USER->timezone (which could have been set by a previous call to here)
 731     // because otherwise the value for the previous $currentuser will take precedence over $CFG->timezone
 732     $USER->timezone = 99;
 733     $tz = get_user_timezone($currentuser->timezone);
 734
 735     // Before formatting the message time string, set $USER->timezone to the above.
 736     // This will allow dst_offset_on (called by userdate) to work correctly, otherwise the
 737     // message times appear off because DST is not taken into account when it should be.
 738     $USER->timezone = $tz;
 739     $message->strtime = userdate($message->timestamp, get_string('strftimemessage', 'chat'), $tz);
 740
 741     $message->picture = $OUTPUT->user_picture($sender, array('size'=>false, 'courseid'=>$courseid, 'link'=>false));
 742
 743     if ($courseid) {
 744         $message->picture = "<a onclick=\"window.open('$CFG->wwwroot/user/view.php?id=$sender->id&amp;course=$courseid')\" href=\"$CFG->wwwroot/user/view.php?id=$sender->id&amp;course=$courseid\">$message->picture</a>";
 745     }
 746
 747     //Calculate the row class
 748     if ($chat_lastrow !== NULL) {
 749         $rowclass = ' class="r'.$chat_lastrow.'" ';
 750     } else {
 751         $rowclass = '';
 752     }
 753
 754     // Start processing the message
 755
 756     if(!empty($message->system)) {
 757         // System event
 758         $output->text = $message->strtime.': '.get_string('message'.$message->message, 'chat', fullname($sender));
 759         $output->html  = '<table class="chat-event"><tr'.$rowclass.'><td class="picture">'.$message->picture.'</td><td class="text">';
 760         $output->html .= '<span class="event">'.$output->text.'</span></td></tr></table>';
 761         $output->basic = '<dl><dt class="event">'.$message->strtime.': '.get_string('message'.$message->message, 'chat', fullname($sender)).'</dt></dl>';
 762
 763         if($message->message == 'exit' or $message->message == 'enter') {
 764             $output->refreshusers = true; //force user panel refresh ASAP
 765         }
 766         return $output;
 767     }
 768
 769     // It's not a system event
 770     $text = trim($message->message);
 771
 772     /// Parse the text to clean and filter it
 773     $options = new stdClass();
 774     $options->para = false;
 775     $text = format_text($text, FORMAT_MOODLE, $options, $courseid);
 776
 777     // And now check for special cases
 778     $patternTo = '#^\s*To\s([^:]+):(.*)#';
 779     $special = false;
 780
 781     if (substr($text, 0, 5) == 'beep ') {
 782         /// It's a beep!
 783         $special = true;
 784         $beepwho = trim(substr($text, 5));
 785
 786         if ($beepwho == 'all') {   // everyone
 787             $outinfo = $message->strtime.': '.get_string('messagebeepseveryone', 'chat', fullname($sender));
 788             $outmain = '';
 789             $output->beep = true;  // (eventually this should be set to
 790                                    //  to a filename uploaded by the user)
 791
 792         } else if ($beepwho == $currentuser->id) {  // current user
 793             $outinfo = $message->strtime.': '.get_string('messagebeepsyou', 'chat', fullname($sender));
 794             $outmain = '';
 795             $output->beep = true;
 796
 797         } else {  //something is not caught?
 798             return false;
 799         }
 800     } else if (substr($text, 0, 1) == '/') {     /// It's a user command
 801         $special = true;
 802         $pattern = '#(^\/)(\w+).*#';
 803         preg_match($pattern, $text, $matches);
 804         $command = isset($matches[2]) ? $matches[2] : false;
 805         // Support some IRC commands.
 806         switch ($command){
 807             case 'me':
 808                 $outinfo = $message->strtime;
 809                 $outmain = '*** <b>'.$sender->firstname.' '.substr($text, 4).'</b>';
 810                 break;
 811             default:
 812                 // Error, we set special back to false to use the classic message output.
 813                 $special = false;
 814                 break;
 815         }
 816     } else if (preg_match($patternTo, $text)) {
 817         $special = true;
 818         $matches = array();
 819         preg_match($patternTo, $text, $matches);
 820         if (isset($matches[1]) && isset($matches[2])) {
 821             $outinfo = $message->strtime;
 822             $outmain = $sender->firstname.' '.get_string('saidto', 'chat').' <i>'.$matches[1].'</i>: '.$matches[2];
 823         } else {
 824             // Error, we set special back to false to use the classic message output.
 825             $special = false;
 826         }
 827     }
 828
 829     if(!$special) {
 830         $outinfo = $message->strtime.' '.$sender->firstname;
 831         $outmain = $text;
 832     }
 833
 834     /// Format the message as a small table
 835
 836     $output->text  = strip_tags($outinfo.': '.$outmain);
 837
 838     $output->html  = "<table class=\"chat-message\"><tr$rowclass><td class=\"picture\" valign=\"top\">$message->picture</td><td class=\"text\">";
 839     $output->html .= "<span class=\"title\">$outinfo</span>";
 840     if ($outmain) {
 841         $output->html .= ": $outmain";
 842         $output->basic = '<dl><dt class="title">'.$outinfo.':</dt><dd class="text">'.$outmain.'</dd></dl>';
 843     } else {
 844         $output->basic = '<dl><dt class="title">'.$outinfo.'</dt></dl>';
 845     }
 846     $output->html .= "</td></tr></table>";
 847     return $output;
 848 }
 849
 850 /**
 851  * @global object
 852  * @param object $message
 853  * @param int $courseid
 854  * @param object $currentuser
 855  * @param string $chat_lastrow
 856  * @return bool|string Returns HTML or false
 857  */
 858 function chat_format_message($message, $courseid, $currentuser, $chat_lastrow=NULL) {
 859 /// Given a message object full of information, this function
 860 /// formats it appropriately into text and html, then
 861 /// returns the formatted data.
 862     global $DB;
 863
 864     static $users;     // Cache user lookups
 865
 866     if (isset($users[$message->userid])) {
 867         $user = $users[$message->userid];
 868     } else if ($user = $DB->get_record('user', array('id'=>$message->userid), user_picture::fields())) {
 869         $users[$message->userid] = $user;
 870     } else {
 871         return NULL;
 872     }
 873     return chat_format_message_manually($message, $courseid, $user, $currentuser, $chat_lastrow);
 874 }
 875
 876 /**
 877  * @global object
 878  * @param object $message message to be displayed.
 879  * @param mixed $chatuser user chat data
 880  * @param object $currentuser current user for whom the message should be displayed.
 881  * @param int $groupingid course module grouping id
 882  * @param string $theme name of the chat theme.
 883  * @return bool|string Returns HTML or false
 884  */
 885 function chat_format_message_theme ($message, $chatuser, $currentuser, $groupingid, $theme = 'bubble') {
 886     global $CFG, $USER, $OUTPUT, $COURSE, $DB, $PAGE;
 887     require_once($CFG->dirroot.'/mod/chat/locallib.php');
 888
 889     static $users;     // Cache user lookups
 890
 891     $result = new stdClass();
 892
 893     if (file_exists($CFG->dirroot . '/mod/chat/gui_ajax/theme/'.$theme.'/config.php')) {
 894         include($CFG->dirroot . '/mod/chat/gui_ajax/theme/'.$theme.'/config.php');
 895     }
 896
 897     if (isset($users[$message->userid])) {
 898         $sender = $users[$message->userid];
 899     } else if ($sender = $DB->get_record('user', array('id'=>$message->userid), user_picture::fields())) {
 900         $users[$message->userid] = $sender;
 901     } else {
 902         return NULL;
 903     }
 904
 905     $USER->timezone = 99;
 906     $tz = get_user_timezone($currentuser->timezone);
 907     $USER->timezone = $tz;
 908
 909     if (empty($chatuser->course)) {
 910         $courseid = $COURSE->id;
 911     } else {
 912         $courseid = $chatuser->course;
 913     }
 914
 915     $message->strtime = userdate($message->timestamp, get_string('strftimemessage', 'chat'), $tz);
 916     $message->picture = $OUTPUT->user_picture($sender, array('courseid'=>$courseid));
 917
 918     $message->picture = "<a target='_blank' href=\"$CFG->wwwroot/user/view.php?id=$sender->id&amp;course=$courseid\">$message->picture</a>";
 919
 920     // Start processing the message
 921     if(!empty($message->system)) {
 922         $result->type = 'system';
 923
 924         $senderprofile = $CFG->wwwroot.'/user/view.php?id='.$sender->id.'&amp;course='.$courseid;
 925         $event = get_string('message'.$message->message, 'chat', fullname($sender));
 926         $eventmessage = new event_message($senderprofile, fullname($sender), $message->strtime, $event, $theme);
 927
 928         $output = $PAGE->get_renderer('mod_chat');
 929         $result->html = $output->render($eventmessage);
 930
 931         return $result;
 932     }
 933
 934     // It's not a system event
 935     $text = trim($message->message);
 936
 937     /// Parse the text to clean and filter it
 938     $options = new stdClass();
 939     $options->para = false;
 940     $text = format_text($text, FORMAT_MOODLE, $options, $courseid);
 941
 942     // And now check for special cases
 943     $special = false;
 944     $outtime = $message->strtime;
 945
 946     // Initialise variables.
 947     $outmain = '';
 948     $patternTo = '#^\s*To\s([^:]+):(.*)#';
 949
 950     if (substr($text, 0, 5) == 'beep ') {
 951         $special = true;
 952         /// It's a beep!
 953         $result->type = 'beep';
 954         $beepwho = trim(substr($text, 5));
 955
 956         if ($beepwho == 'all') {   // everyone
 957             $outmain =  get_string('messagebeepseveryone', 'chat', fullname($sender));
 958         } else if ($beepwho == $currentuser->id) {  // current user
 959             $outmain = get_string('messagebeepsyou', 'chat', fullname($sender));
 960         } else if ($sender->id == $currentuser->id) {  //something is not caught?
 961             //allow beep for a active chat user only, else user can beep anyone and get fullname
 962             if (!empty($chatuser) && is_numeric($beepwho)) {
 963                $chatusers = chat_get_users($chatuser->chatid, $chatuser->groupid, $groupingid);
 964                if (array_key_exists($beepwho, $chatusers)) {
 965                    $outmain = get_string('messageyoubeep', 'chat', fullname($chatusers[$beepwho]));
 966                } else {
 967                    $outmain = get_string('messageyoubeep', 'chat', $beepwho);
 968                }
 969             } else {
 970                 $outmain = get_string('messageyoubeep', 'chat', $beepwho);
 971             }
 972         }
 973     } else if (substr($text, 0, 1) == '/') {     /// It's a user command
 974         $special = true;
 975         $result->type = 'command';
 976         $pattern = '#(^\/)(\w+).*#';
 977         preg_match($pattern, $text, $matches);
 978         $command = isset($matches[2]) ? $matches[2] : false;
 979         // Support some IRC commands.
 980         switch ($command){
 981             case 'me':
 982                 $outmain = '*** <b>'.$sender->firstname.' '.substr($text, 4).'</b>';
 983                 break;
 984             default:
 985                 // Error, we set special back to false to use the classic message output.
 986                 $special = false;
 987                 break;
 988         }
 989     } else if (preg_match($patternTo, $text)) {
 990         $special = true;
 991         $result->type = 'dialogue';
 992         $matches = array();
 993         preg_match($patternTo, $text, $matches);
 994         if (isset($matches[1]) && isset($matches[2])) {
 995             $outmain = $sender->firstname.' <b>'.get_string('saidto', 'chat').'</b> <i>'.$matches[1].'</i>: '.$matches[2];
 996         } else {
 997             // Error, we set special back to false to use the classic message output.
 998             $special = false;
 999         }
1000     }
1001
1002     if (!$special) {
1003         $outmain = $text;
1004     }
1005
1006     $result->text = strip_tags($outtime.': '.$outmain);
1007
1008     $mymessageclass = '';
1009     if ($sender->id == $USER->id) {
1010         $mymessageclass = 'chat-message-mymessage';
1011     }
1012
1013     $senderprofile = $CFG->wwwroot.'/user/view.php?id='.$sender->id.'&amp;course='.$courseid;
1014     $usermessage = new user_message($senderprofile, fullname($sender), $message->picture, $mymessageclass, $outtime, $outmain, $theme);
1015
1016     $output = $PAGE->get_renderer('mod_chat');
1017     $result->html = $output->render($usermessage);
1018
1019     //When user beeps other user, then don't show any timestamp to other users in chat.
1020     if (('' === $outmain) && $special) {
1021         return false;
1022     } else {
1023         return $result;
1024     }
1025 }
1026
1027 /**
1028  * @global object $DB
1029  * @global object $CFG
1030  * @global object $COURSE
1031  * @global object $OUTPUT
1032  * @param object $users
1033  * @param object $course
1034  * @return array return formatted user list
1035  */
1036 function chat_format_userlist($users, $course) {
1037     global $CFG, $DB, $COURSE, $OUTPUT;
1038     $result = array();
1039     foreach($users as $user){
1040         $item = array();
1041         $item['name'] = fullname($user);
1042         $item['url'] = $CFG->wwwroot.'/user/view.php?id='.$user->id.'&amp;course='.$course->id;
1043         $item['picture'] = $OUTPUT->user_picture($user);
1044         $item['id'] = $user->id;
1045         $result[] = $item;
1046     }
1047     return $result;
1048 }
1049
1050 /**
1051  * Print json format error
1052  * @param string $level
1053  * @param string $msg
1054  */
1055 function chat_print_error($level, $msg) {
1056     header('Content-Length: ' . ob_get_length() );
1057     $error = new stdClass();
1058     $error->level = $level;
1059     $error->msg   = $msg;
1060     $response['error'] = $error;
1061     echo json_encode($response);
1062     ob_end_flush();
1063     exit;
1064 }
1065
1066 /**
1067  * @return array
1068  */
1069 function chat_get_view_actions() {
1070     return array('view','view all','report');
1071 }
1072
1073 /**
1074  * @return array
1075  */
1076 function chat_get_post_actions() {
1077     return array('talk');
1078 }
1079
1080 /**
1081  * @global object
1082  * @global object
1083  * @param array $courses
1084  * @param array $htmlarray Passed by reference
1085  */
1086 function chat_print_overview($courses, &$htmlarray) {
1087     global $USER, $CFG;
1088
1089     if (empty($courses) || !is_array($courses) || count($courses) == 0) {
1090         return array();
1091     }
1092
1093     if (!$chats = get_all_instances_in_courses('chat',$courses)) {
1094         return;
1095     }
1096
1097     $strchat = get_string('modulename', 'chat');
1098     $strnextsession  = get_string('nextsession', 'chat');
1099
1100     foreach ($chats as $chat) {
1101         if ($chat->chattime and $chat->schedule) {  // A chat is scheduled
1102             $str = '<div class="chat overview"><div class="name">'.
1103                    $strchat.': <a '.($chat->visible?'':' class="dimmed"').
1104                    ' href="'.$CFG->wwwroot.'/mod/chat/view.php?id='.$chat->coursemodule.'">'.
1105                    $chat->name.'</a></div>';
1106             $str .= '<div class="info">'.$strnextsession.': '.userdate($chat->chattime).'</div></div>';
1107
1108             if (empty($htmlarray[$chat->course]['chat'])) {
1109                 $htmlarray[$chat->course]['chat'] = $str;
1110             } else {
1111                 $htmlarray[$chat->course]['chat'] .= $str;
1112             }
1113         }
1114     }
1115 }
1116
1117
1118 /**
1119  * Implementation of the function for printing the form elements that control
1120  * whether the course reset functionality affects the chat.
1121  *
1122  * @param object $mform form passed by reference
1123  */
1124 function chat_reset_course_form_definition(&$mform) {
1125     $mform->addElement('header', 'chatheader', get_string('modulenameplural', 'chat'));
1126     $mform->addElement('advcheckbox', 'reset_chat', get_string('removemessages','chat'));
1127 }
1128
1129 /**
1130  * Course reset form defaults.
1131  *
1132  * @param object $course
1133  * @return array
1134  */
1135 function chat_reset_course_form_defaults($course) {
1136     return array('reset_chat'=>1);
1137 }
1138
1139 /**
1140  * Actual implementation of the reset course functionality, delete all the
1141  * chat messages for course $data->courseid.
1142  *
1143  * @global object
1144  * @global object
1145  * @param object $data the data submitted from the reset course.
1146  * @return array status array
1147  */
1148 function chat_reset_userdata($data) {
1149     global $CFG, $DB;
1150
1151     $componentstr = get_string('modulenameplural', 'chat');
1152     $status = array();
1153
1154     if (!empty($data->reset_chat)) {
1155         $chatessql = "SELECT ch.id
1156                         FROM {chat} ch
1157                        WHERE ch.course=?";
1158         $params = array($data->courseid);
1159
1160         $DB->delete_records_select('chat_messages', "chatid IN ($chatessql)", $params);
1161         $DB->delete_records_select('chat_messages_current', "chatid IN ($chatessql)", $params);
1162         $DB->delete_records_select('chat_users', "chatid IN ($chatessql)", $params);
1163         $status[] = array('component'=>$componentstr, 'item'=>get_string('removemessages', 'chat'), 'error'=>false);
1164     }
1165
1166     /// updating dates - shift may be negative too
1167     if ($data->timeshift) {
1168         shift_course_mod_dates('chat', array('chattime'), $data->timeshift, $data->courseid);
1169         $status[] = array('component'=>$componentstr, 'item'=>get_string('datechanged'), 'error'=>false);
1170     }
1171
1172     return $status;
1173 }
1174
1175 /**
1176  * Returns all other caps used in module
1177  *
1178  * @return array
1179  */
1180 function chat_get_extra_capabilities() {
1181     return array('moodle/site:accessallgroups', 'moodle/site:viewfullnames');
1182 }
1183
1184
1185 /**
1186  * @param string $feature FEATURE_xx constant for requested feature
1187  * @return mixed True if module supports feature, null if doesn't know
1188  */
1189 function chat_supports($feature) {
1190     switch($feature) {
1191         case FEATURE_GROUPS:                  return true;
1192         case FEATURE_GROUPINGS:               return true;
1193         case FEATURE_GROUPMEMBERSONLY:        return true;
1194         case FEATURE_MOD_INTRO:               return true;
1195         case FEATURE_BACKUP_MOODLE2:          return true;
1196         case FEATURE_COMPLETION_TRACKS_VIEWS: return true;
1197         case FEATURE_GRADE_HAS_GRADE:         return false;
1198         case FEATURE_GRADE_OUTCOMES:          return true;
1199         case FEATURE_SHOW_DESCRIPTION:        return true;
1200
1201         default: return null;
1202     }
1203 }
1204
1205 function chat_extend_navigation($navigation, $course, $module, $cm) {
1206     global $CFG;
1207
1208     $currentgroup = groups_get_activity_group($cm, true);
1209
1210     if (has_capability('mod/chat:chat', context_module::instance($cm->id))) {
1211         $strenterchat    = get_string('enterchat', 'chat');
1212
1213         $target = $CFG->wwwroot.'/mod/chat/';
1214         $params = array('id'=>$cm->instance);
1215
1216         if ($currentgroup) {
1217             $params['groupid'] = $currentgroup;
1218         }
1219
1220         $links = array();
1221
1222         $url = new moodle_url($target.'gui_'.$CFG->chat_method.'/index.php', $params);
1223         $action = new popup_action('click', $url, 'chat'.$course->id.$cm->instance.$currentgroup, array('height' => 500, 'width' => 700));
1224         $links[] = new action_link($url, $strenterchat, $action);
1225
1226         $url = new moodle_url($target.'gui_basic/index.php', $params);
1227         $action = new popup_action('click', $url, 'chat'.$course->id.$cm->instance.$currentgroup, array('height' => 500, 'width' => 700));
1228         $links[] = new action_link($url, get_string('noframesjs', 'message'), $action);
1229
1230         foreach ($links as $link) {
1231             $navigation->add($link->text, $link, navigation_node::TYPE_SETTING, null ,null, new pix_icon('i/group' , ''));
1232         }
1233     }
1234
1235     $chatusers = chat_get_users($cm->instance, $currentgroup, $cm->groupingid);
1236     if (is_array($chatusers) && count($chatusers)>0) {
1237         $users = $navigation->add(get_string('currentusers', 'chat'));
1238         foreach ($chatusers as $chatuser) {
1239             $userlink = new moodle_url('/user/view.php', array('id'=>$chatuser->id,'course'=>$course->id));
1240             $users->add(fullname($chatuser).' '.format_time(time() - $chatuser->lastmessageping), $userlink, navigation_node::TYPE_USER, null, null, new pix_icon('i/user', ''));
1241         }
1242     }
1243 }
1244
1245 /**
1246  * Adds module specific settings to the settings block
1247  *
1248  * @param settings_navigation $settings The settings navigation object
1249  * @param navigation_node $chatnode The node to add module settings to
1250  */
1251 function chat_extend_settings_navigation(settings_navigation $settings, navigation_node $chatnode) {
1252     global $DB, $PAGE, $USER;
1253     $chat = $DB->get_record("chat", array("id" => $PAGE->cm->instance));
1254
1255     if ($chat->chattime && $chat->schedule) {
1256         $nextsessionnode = $chatnode->add(get_string('nextsession', 'chat').': '.userdate($chat->chattime).' ('.usertimezone($USER->timezone));
1257         $nextsessionnode->add_class('note');
1258     }
1259
1260     $currentgroup = groups_get_activity_group($PAGE->cm, true);
1261     if ($currentgroup) {
1262         $groupselect = " AND groupid = '$currentgroup'";
1263     } else {
1264         $groupselect = '';
1265     }
1266
1267     if ($chat->studentlogs || has_capability('mod/chat:readlog',$PAGE->cm->context)) {
1268         if ($DB->get_records_select('chat_messages', "chatid = ? $groupselect", array($chat->id))) {
1269             $chatnode->add(get_string('viewreport', 'chat'), new moodle_url('/mod/chat/report.php', array('id'=>$PAGE->cm->id)));
1270         }
1271     }
1272 }
1273
1274 /**
1275  * user logout event handler
1276  *
1277  * @param object $user full $USER object
1278  */
1279 function chat_user_logout($user) {
1280     global $DB;
1281     $DB->delete_records('chat_users', array('userid'=>$user->id));
1282 }
1283
1284 /**
1285  * Return a list of page types
1286  * @param string $pagetype current page type
1287  * @param stdClass $parentcontext Block's parent context
1288  * @param stdClass $currentcontext Current context of block
1289  */
1290 function chat_page_type_list($pagetype, $parentcontext, $currentcontext) {
1291     $module_pagetype = array('mod-chat-*'=>get_string('page-mod-chat-x', 'chat'));
1292     return $module_pagetype;
1293 }