[moodle.git] / mod / chat / gui_header_js / jsupdate.php

<?php  // $Id$

    $nomoodlecookie = true;     // Session not needed!

    require('../../../config.php');
    require('../lib.php');

    $chat_sid      = required_param('chat_sid', PARAM_ALPHANUM);
    $chat_lasttime = optional_param('chat_lasttime', 0, PARAM_INT);
    $chat_lastrow  = optional_param('chat_lastrow', 1, PARAM_INT);

    if (!$chatuser = get_record('chat_users', 'sid', $chat_sid)) {
        error('Not logged in!');
    }

    //Get the course theme
    $course = get_record('course','id',$chatuser->course,'','','','','id,theme');
    //Set the course theme if necessary
    if (!empty($course->theme)) {
        if (!empty($CFG->allowcoursethemes)) {
            $CFG->coursetheme = $course->theme;
        }
    }
    //Get the user theme
    $USER = get_record('user','id',$chatuser->userid,'','','','','id, theme');

    //Adjust the prefered theme (main, course, user)
    theme_setup();

    chat_force_language($chatuser->lang);

    // force deleting of timed out users if there is a silence in room or just entering
    if ((time() - $chat_lasttime) > $CFG->chat_old_ping) {
        // must be done before chat_get_latest_message!!!
        chat_delete_old_users();
    }

    if ($message = chat_get_latest_message($chatuser->chatid, $chatuser->groupid)) {
        $chat_newlasttime = $message->timestamp;
    } else {
        $chat_newlasttime = 0;
    }

    if ($chat_lasttime == 0) { //display some previous messages
        $chat_lasttime = time() - $CFG->chat_old_ping; //TO DO - any better value??
    }

    $timenow    = time();

    $groupselect = $chatuser->groupid ? " AND (groupid='".$chatuser->groupid."' OR groupid='0') " : "";

    $messages = get_records_select("chat_messages",
                        "chatid = '$chatuser->chatid' AND timestamp > '$chat_lasttime' $groupselect",
                        "timestamp ASC");

    if ($messages) {
        $num = count($messages);
    } else {
        $num = 0;
    }

    $chat_newrow = ($chat_lastrow + $num) % 2;

    $refreshurl = "jsupdate.php?chat_sid=$chat_sid&chat_lasttime=$chat_newlasttime&chat_lastrow=$chat_newrow"; // no &amp; in url, does not work in header!

    header('Expires: Sun, 28 Dec 1997 09:32:45 GMT');
    header('Last-Modified: '.gmdate('D, d M Y H:i:s').' GMT');
    header('Cache-Control: no-cache, must-revalidate');
    header('Pragma: no-cache');
    header('Content-Type: text/html; charset='.current_charset());
    header("Refresh: $CFG->chat_refresh_room; url=$refreshurl");

    /// required stylesheets
    $stylesheetshtml = '';
    foreach ($CFG->stylesheets as $stylesheet) {
        $stylesheetshtml .= '<link rel=\\"stylesheet\\" type=\\"text/css\\" href=\\"'.$stylesheet.'\\" />';
    }

?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
    <head>
        <meta http-equiv="content-type" content="text/html; charset=<?php echo current_charset(); ?>" />
        <script type="text/javascript">
        <!--
        if (parent.msg.document.getElementById("msgStarted") == null) {
            parent.msg.document.close();
            parent.msg.document.open("text/html","replace");
            parent.msg.document.write("<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">");
            parent.msg.document.write("<html><head>");
            parent.msg.document.write("<meta http-equiv=\"content-type\" content=\"text/html; charset=<?php echo current_charset(); ?>\" />");
            parent.msg.document.write("<base target=\"_blank\" />");
            parent.msg.document.write("<?php echo $stylesheetshtml ?>");
            parent.msg.document.write("</head><body class=\"mod-chat-gui_header_js course-<?php echo $chatuser->course ?>\" id=\"mod-chat-gui_header_js-jsupdate\"><div style=\"display: none\" id=\"msgStarted\">&nbsp;</div>");
        }
        <?php
        $beep = false;
        $refreshusers = false;
        $us = array ();
        if (($chat_lasttime != $chat_newlasttime) and $messages) {

            // $currentuser is only used in chat_format_message() which passes it along to
            // chat_format_message_manually() -- and only id and timezone are used.
            if (!$currentuser = get_record('user', 'id', $chatuser->userid, '','', '','', 'id, username, timezone')) {
                error('User does not exist!');
            }
            $currentuser->description = '';

            foreach ($messages as $message) {
                $chat_lastrow = ($chat_lastrow + 1) % 2;
                $formatmessage = chat_format_message($message, $chatuser->course, $currentuser, $chat_lastrow);
                if ($formatmessage->beep) {
                     $beep = true;
                }
                if ($formatmessage->refreshusers) {
                     $refreshusers = true;
                }
                $us[$message->userid] = $timenow - $message->timestamp;
                echo "parent.msg.document.write('".addslashes($formatmessage->html)."\\n');\n";
             }
        }

        $chatuser->lastping = time();
        set_field('chat_users', 'lastping', $chatuser->lastping, 'sid', $chatuser->sid );

        if ($refreshusers) {
            echo "if (parent.users.document.anchors[0] != null) {" .
                    "parent.users.location.href = parent.users.document.anchors[0].href;}\n";
        } else {
            foreach($us as $uid=>$lastping) {
                $min = (int) ($lastping/60);
                $sec = $lastping - ($min*60);
                $min = $min < 10 ? '0'.$min : $min;
                $sec = $sec < 10 ? '0'.$sec : $sec;
                $idle = $min.':'.$sec;
                echo "if (parent.users.document.getElementById('uidle{$uid}') != null) {".
                        "parent.users.document.getElementById('uidle{$uid}').innerHTML = '$idle';}\n";
            }
        }
        ?>
        parent.msg.scroll(1,5000000);
        // -->
        </script>
    </head>
    <body>
       <?php
            if ($beep) {
                echo '<embed src="../beep.wav" autostart="true" hidden="true" name="beep" />';
            }
        ?>
       <a href="<?php echo $refreshurl ?>" name="refreshLink">Refresh link</a>
    </body>
</html>
Commit	Line	Data
516121bd	1	<?php // $Id$
1515a89e	2
516121bd	3	$nomoodlecookie = true; // Session not needed!
1515a89e	4
516121bd	5	require('../../../config.php');
516121bd	6	require('../lib.php');
84a2fdd7	7
516121bd	8	$chat_sid = required_param('chat_sid', PARAM_ALPHANUM);
516121bd	9	$chat_lasttime = optional_param('chat_lasttime', 0, PARAM_INT);
aa5c32fd	10	$chat_lastrow = optional_param('chat_lastrow', 1, PARAM_INT);
1515a89e	11
516121bd	12	if (!$chatuser = get_record('chat_users', 'sid', $chat_sid)) {
	13	error('Not logged in!');
	14	}
f7e648da	15
aa5c32fd	16	//Get the course theme
	17	$course = get_record('course','id',$chatuser->course,'','','','','id,theme');
	18	//Set the course theme if necessary
	19	if (!empty($course->theme)) {
	20	if (!empty($CFG->allowcoursethemes)) {
	21	$CFG->coursetheme = $course->theme;
	22	}
	23	}
	24	//Get the user theme
	25	$USER = get_record('user','id',$chatuser->userid,'','','','','id, theme');
	26
	27	//Adjust the prefered theme (main, course, user)
	28	theme_setup();
	29
516121bd	30	chat_force_language($chatuser->lang);
f7e648da	31
516121bd	32	// force deleting of timed out users if there is a silence in room or just entering
	33	if ((time() - $chat_lasttime) > $CFG->chat_old_ping) {
	34	// must be done before chat_get_latest_message!!!
	35	chat_delete_old_users();
	36	}
1515a89e	37
516121bd	38	if ($message = chat_get_latest_message($chatuser->chatid, $chatuser->groupid)) {
	39	$chat_newlasttime = $message->timestamp;
	40	} else {
	41	$chat_newlasttime = 0;
	42	}
1515a89e	43
516121bd	44	if ($chat_lasttime == 0) { //display some previous messages
	45	$chat_lasttime = time() - $CFG->chat_old_ping; //TO DO - any better value??
	46	}
1515a89e	47
516121bd	48	$timenow = time();
	49
	50	$groupselect = $chatuser->groupid ? " AND (groupid='".$chatuser->groupid."' OR groupid='0') " : "";
	51
aa5c32fd	52	$messages = get_records_select("chat_messages",
	53	"chatid = '$chatuser->chatid' AND timestamp > '$chat_lasttime' $groupselect",
	54	"timestamp ASC");
	55
	56	if ($messages) {
	57	$num = count($messages);
	58	} else {
	59	$num = 0;
	60	}
	61
	62	$chat_newrow = ($chat_lastrow + $num) % 2;
	63
	64	$refreshurl = "jsupdate.php?chat_sid=$chat_sid&chat_lasttime=$chat_newlasttime&chat_lastrow=$chat_newrow"; // no & in url, does not work in header!
	65
516121bd	66	header('Expires: Sun, 28 Dec 1997 09:32:45 GMT');
	67	header('Last-Modified: '.gmdate('D, d M Y H:i:s').' GMT');
	68	header('Cache-Control: no-cache, must-revalidate');
	69	header('Pragma: no-cache');
16ad40e1	70	header('Content-Type: text/html; charset='.current_charset());
516121bd	71	header("Refresh: $CFG->chat_refresh_room; url=$refreshurl");
1515a89e	72
68eb9f32	73	/// required stylesheets
	74	$stylesheetshtml = '';
	75	foreach ($CFG->stylesheets as $stylesheet) {
	76	$stylesheetshtml .= '<link rel=\\"stylesheet\\" type=\\"text/css\\" href=\\"'.$stylesheet.'\\" />';
	77	}
	78
1515a89e	79	?>
aa5c32fd	80	<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
516121bd	81	<html>
516121bd	82	<head>
b49f9e89	83	<meta http-equiv="content-type" content="text/html; charset=<?php echo current_charset(); ?>" />
516121bd	84	<script type="text/javascript">
516121bd	85	<!--
2debdf04	86	if (parent.msg.document.getElementById("msgStarted") == null) {
	87	parent.msg.document.close();
	88	parent.msg.document.open("text/html","replace");
aa5c32fd	89	parent.msg.document.write("<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">");
2debdf04	90	parent.msg.document.write("<html><head>");
b49f9e89	91	parent.msg.document.write("<meta http-equiv=\"content-type\" content=\"text/html; charset=<?php echo current_charset(); ?>\" />");
b9795750	92	parent.msg.document.write("<base target=\"_blank\" />");
68eb9f32	93	parent.msg.document.write("<?php echo $stylesheetshtml ?>");
aa5c32fd	94	parent.msg.document.write("</head><body class=\"mod-chat-gui_header_js course-<?php echo $chatuser->course ?>\" id=\"mod-chat-gui_header_js-jsupdate\"><div style=\"display: none\" id=\"msgStarted\"> </div>");
2debdf04	95	}
516121bd	96	<?php
	97	$beep = false;
	98	$refreshusers = false;
	99	$us = array ();
aa5c32fd	100	if (($chat_lasttime != $chat_newlasttime) and $messages) {
516121bd	101
4d5525c6	102	// $currentuser is only used in chat_format_message() which passes it along to
	103	// chat_format_message_manually() -- and only id and timezone are used.
	104	if (!$currentuser = get_record('user', 'id', $chatuser->userid, '','', '','', 'id, username, timezone')) {
516121bd	105	error('User does not exist!');
	106	}
	107	$currentuser->description = '';
	108
	109	foreach ($messages as $message) {
aa5c32fd	110	$chat_lastrow = ($chat_lastrow + 1) % 2;
aa5c32fd	111	$formatmessage = chat_format_message($message, $chatuser->course, $currentuser, $chat_lastrow);
516121bd	112	if ($formatmessage->beep) {
	113	$beep = true;
	114	}
	115	if ($formatmessage->refreshusers) {
	116	$refreshusers = true;
	117	}
	118	$us[$message->userid] = $timenow - $message->timestamp;
	119	echo "parent.msg.document.write('".addslashes($formatmessage->html)."\\n');\n";
1515a89e	120	}
516121bd	121	}
	122
	123	$chatuser->lastping = time();
4d5525c6	124	set_field('chat_users', 'lastping', $chatuser->lastping, 'sid', $chatuser->sid );
516121bd	125
516121bd	126	if ($refreshusers) {
3dfd307f	127	echo "if (parent.users.document.anchors[0] != null) {" .
3dfd307f	128	"parent.users.location.href = parent.users.document.anchors[0].href;}\n";
516121bd	129	} else {
	130	foreach($us as $uid=>$lastping) {
	131	$min = (int) ($lastping/60);
	132	$sec = $lastping - ($min*60);
	133	$min = $min < 10 ? '0'.$min : $min;
	134	$sec = $sec < 10 ? '0'.$sec : $sec;
	135	$idle = $min.':'.$sec;
3dfd307f	136	echo "if (parent.users.document.getElementById('uidle{$uid}') != null) {".
3dfd307f	137	"parent.users.document.getElementById('uidle{$uid}').innerHTML = '$idle';}\n";
516121bd	138	}
	139	}
	140	?>
	141	parent.msg.scroll(1,5000000);
	142	// -->
	143	</script>
	144	</head>
	145	<body>
	146	<?php
	147	if ($beep) {
	148	echo '<embed src="../beep.wav" autostart="true" hidden="true" name="beep" />';
	149	}
	150	?>
107e7612	151	<a href="<?php echo $refreshurl ?>" name="refreshLink">Refresh link</a>
516121bd	152	</body>
516121bd	153	</html>