[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);

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

    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??
    }

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

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

    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');
    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 HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<html>
    <head>
        <meta http-equiv="content-type" content="text/html; charset=<?php echo get_string('thischarset'); ?>" />
        <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("<html><head>");
            parent.msg.document.write("<meta http-equiv=\"content-type\" content=\"text/html; charset=<?php echo get_string('thischarset'); ?>\" />");
            parent.msg.document.write("<base target=\"_blank\" />");
            parent.msg.document.write("<?php echo $stylesheetshtml ?>");
            parent.msg.document.write("</head><body><div style=\"display: none\" id=\"msgStarted\">&nbsp;</div>");
        }
        <?php
        $beep = false;
        $refreshusers = false;
        $us = array ();
        if (($chat_lasttime != $chat_newlasttime)
         and $messages = get_records_select("chat_messages",
                            "chatid = '$chatuser->chatid' AND timestamp > '$chat_lasttime' $groupselect",
                            "timestamp ASC")) {

            if (!$currentuser = get_record('user', 'id', $chatuser->userid)) {
                error('User does not exist!');
            }
            $currentuser->description = '';

            foreach ($messages as $message) {
                $formatmessage = chat_format_message($message, $chatuser->course, $currentuser);
                if ($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();
        update_record('chat_users', $chatuser);

        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="<? 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	$chat_lasttime = optional_param('chat_lasttime', 0, PARAM_INT);
1515a89e	10
516121bd	11	if (!$chatuser = get_record('chat_users', 'sid', $chat_sid)) {
	12	error('Not logged in!');
	13	}
f7e648da	14
516121bd	15	chat_force_language($chatuser->lang);
f7e648da	16
516121bd	17	// force deleting of timed out users if there is a silence in room or just entering
	18	if ((time() - $chat_lasttime) > $CFG->chat_old_ping) {
	19	// must be done before chat_get_latest_message!!!
	20	chat_delete_old_users();
	21	}
1515a89e	22
516121bd	23	if ($message = chat_get_latest_message($chatuser->chatid, $chatuser->groupid)) {
	24	$chat_newlasttime = $message->timestamp;
	25	} else {
	26	$chat_newlasttime = 0;
	27	}
1515a89e	28
516121bd	29	if ($chat_lasttime == 0) { //display some previous messages
	30	$chat_lasttime = time() - $CFG->chat_old_ping; //TO DO - any better value??
	31	}
1515a89e	32
516121bd	33	$refreshurl = "jsupdate.php?chat_sid=$chat_sid&chat_lasttime=$chat_newlasttime"; // no & in url, does not work in header!
	34	$timenow = time();
	35
	36	$groupselect = $chatuser->groupid ? " AND (groupid='".$chatuser->groupid."' OR groupid='0') " : "";
	37
	38	header('Expires: Sun, 28 Dec 1997 09:32:45 GMT');
	39	header('Last-Modified: '.gmdate('D, d M Y H:i:s').' GMT');
	40	header('Cache-Control: no-cache, must-revalidate');
	41	header('Pragma: no-cache');
	42	header('Content-Type: text/html');
	43	header("Refresh: $CFG->chat_refresh_room; url=$refreshurl");
1515a89e	44
68eb9f32	45	/// required stylesheets
	46	$stylesheetshtml = '';
	47	foreach ($CFG->stylesheets as $stylesheet) {
	48	$stylesheetshtml .= '<link rel=\\"stylesheet\\" type=\\"text/css\\" href=\\"'.$stylesheet.'\\" />';
	49	}
	50
1515a89e	51	?>
516121bd	52	<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
	53	<html>
	54	<head>
	55	<meta http-equiv="content-type" content="text/html; charset=<?php echo get_string('thischarset'); ?>" />
	56	<script type="text/javascript">
	57	<!--
2debdf04	58	if (parent.msg.document.getElementById("msgStarted") == null) {
	59	parent.msg.document.close();
	60	parent.msg.document.open("text/html","replace");
	61	parent.msg.document.write("<html><head>");
	62	parent.msg.document.write("<meta http-equiv=\"content-type\" content=\"text/html; charset=<?php echo get_string('thischarset'); ?>\" />");
b9795750	63	parent.msg.document.write("<base target=\"_blank\" />");
68eb9f32	64	parent.msg.document.write("<?php echo $stylesheetshtml ?>");
2debdf04	65	parent.msg.document.write("</head><body><div style=\"display: none\" id=\"msgStarted\"> </div>");
2debdf04	66	}
516121bd	67	<?php
	68	$beep = false;
	69	$refreshusers = false;
	70	$us = array ();
	71	if (($chat_lasttime != $chat_newlasttime)
	72	and $messages = get_records_select("chat_messages",
	73	"chatid = '$chatuser->chatid' AND timestamp > '$chat_lasttime' $groupselect",
	74	"timestamp ASC")) {
	75
	76	if (!$currentuser = get_record('user', 'id', $chatuser->userid)) {
	77	error('User does not exist!');
	78	}
	79	$currentuser->description = '';
	80
	81	foreach ($messages as $message) {
	82	$formatmessage = chat_format_message($message, $chatuser->course, $currentuser);
	83	if ($formatmessage->beep) {
	84	$beep = true;
	85	}
	86	if ($formatmessage->refreshusers) {
	87	$refreshusers = true;
	88	}
	89	$us[$message->userid] = $timenow - $message->timestamp;
	90	echo "parent.msg.document.write('".addslashes($formatmessage->html)."\\n');\n";
1515a89e	91	}
516121bd	92	}
	93
	94	$chatuser->lastping = time();
	95	update_record('chat_users', $chatuser);
	96
	97	if ($refreshusers) {
3dfd307f	98	echo "if (parent.users.document.anchors[0] != null) {" .
3dfd307f	99	"parent.users.location.href = parent.users.document.anchors[0].href;}\n";
516121bd	100	} else {
	101	foreach($us as $uid=>$lastping) {
	102	$min = (int) ($lastping/60);
	103	$sec = $lastping - ($min*60);
	104	$min = $min < 10 ? '0'.$min : $min;
	105	$sec = $sec < 10 ? '0'.$sec : $sec;
	106	$idle = $min.':'.$sec;
3dfd307f	107	echo "if (parent.users.document.getElementById('uidle{$uid}') != null) {".
3dfd307f	108	"parent.users.document.getElementById('uidle{$uid}').innerHTML = '$idle';}\n";
516121bd	109	}
	110	}
	111	?>
	112	parent.msg.scroll(1,5000000);
	113	// -->
	114	</script>
	115	</head>
	116	<body>
	117	<?php
	118	if ($beep) {
	119	echo '<embed src="../beep.wav" autostart="true" hidden="true" name="beep" />';
	120	}
	121	?>
3dfd307f	122	<a href="<? echo $refreshurl ?>" name="refreshLink">Refresh link</a>
516121bd	123	</body>
516121bd	124	</html>