message/refresh.php

   1 <?php // $Id$
   2
   3     require('../config.php');
   4
   5     define('MESSAGE_DEFAULT_REFRESH', 5);
   6
   7     require_login();
   8
   9     if (isguest()) {
  10         redirect($CFG->wwwroot);
  11     }
  12
  13     if (empty($CFG->messaging)) {
  14         error("Messaging is disabled on this site");
  15     }
  16
  17 /// Script parameters
  18     $userid       = required_param('id', PARAM_INT);
  19     $userfullname = strip_tags(required_param('name', PARAM_RAW));
  20     $wait         = optional_param('wait', MESSAGE_DEFAULT_REFRESH, PARAM_INT);
  21
  22     $stylesheetshtml = '';
  23     foreach ($CFG->stylesheets as $stylesheet) {
  24         $stylesheetshtml .= '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'" />';
  25     }
  26     header('Expires: Sun, 28 Dec 1997 09:32:45 GMT');
  27     header('Last-Modified: '.gmdate('D, d M Y H:i:s').' GMT');
  28     header('Cache-Control: no-cache, must-revalidate');
  29     header('Pragma: no-cache');
  30     header('Content-Type: text/html; charset=utf-8');
  31
  32     echo '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">'."\n";
  33     echo '<html><head><title> </title>';
  34     echo '<meta http-equiv="content-type" content="text/html; charset=utf-8" />';
  35     echo '<script type="text/javascript">'."\n";
  36     echo '<!--'."\n";
  37     echo 'if (parent.messages.document.getElementById("messagestarted") == null) {'."\n";
  38     echo '  parent.messages.document.close();'."\n";
  39     echo '  parent.messages.document.open("text/html","replace");'."\n";
  40     echo '  parent.messages.document.write("<html><head><title> <\/title>");'."\n";
  41     echo '  parent.messages.document.write("<meta http-equiv=\"content-type\" content=\"text/html; charset=utf-8\" />");'."\n";
  42     echo '  parent.messages.document.write("<base target=\"_blank\" />");'."\n";
  43     echo '  parent.messages.document.write("'.addslashes_js($stylesheetshtml).'");'."\n";
  44     echo '  parent.messages.document.write("<\/head><body class=\"message course-1\" id=\"message-messages\"><div style=\"display: none\" id=\"messagestarted\">&nbsp;<\/div>");'."\n";
  45     echo '}'."\n";
  46
  47     @ob_implicit_flush(true);
  48     @ob_end_flush();
  49
  50     if ($messages = get_records_select('message', "useridto = '$USER->id' AND useridfrom = '$userid'",
  51                                        'timecreated')) {
  52         foreach ($messages as $message) {
  53             $time = userdate($message->timecreated, get_string('strftimedatetimeshort'));
  54
  55             $options = new object();
  56             $options->para = false;
  57             $options->newlines = true;
  58             $printmessage = format_text($message->message, $message->format, $options);
  59             $printmessage = '<div class="message other"><span class="author">'.s($userfullname).'</span> '.
  60                 '<span class="time">['.$time.']</span>: '.
  61                 '<span class="content">'.$printmessage.'</span></div>';
  62             $printmessage = addslashes_js($printmessage);  // So Javascript can write it
  63             echo "parent.messages.document.write('".$printmessage."');\n";
  64
  65             /// Move the entry to the other table
  66             $message->timeread = time();
  67             $message = addslashes_object($message);
  68             $messageid = $message->id;
  69             unset($message->id);
  70             if (insert_record('message_read', $message)) {
  71                 delete_records('message', 'id', $messageid);
  72             }
  73         }
  74         if (get_user_preferences('message_beepnewmessage', 0)) {
  75             $playbeep = true;
  76         }
  77         echo 'parent.messages.scroll(1,5000000);'."\n";
  78         echo 'parent.send.focus();'."\n";
  79         $wait = MESSAGE_DEFAULT_REFRESH;
  80     } else {
  81         if ($wait < 300) {                     // Until the wait is five minutes
  82             $wait = ceil(1.2 * (float)$wait);  // Exponential growth
  83         }
  84     }
  85
  86     echo '-->'."\n";
  87     echo '</script>'."\n";
  88     echo '</head>'."\n";
  89     echo '<body>'."\n";
  90
  91     if (!empty($playbeep)) {
  92         echo '<embed src="bell.wav" autostart="true" hidden="true" name="bell" />';
  93         echo '<script type="text/javascript">'."\n";
  94         echo '<!--'."\n";
  95         echo 'parent.send.focus();'."\n";
  96         echo '-->'."\n";
  97         echo '</script>'."\n";
  98     }
  99
 100     // Javascript for Mozilla to cope with the redirect bug from editor being on in this page
 101     ?>
 102
 103 <script type="text/javascript">
 104 <!--
 105
 106   function redirect() {
 107     document.location.replace('refresh.php?id=<?php echo $userid ?>&name=<?php echo urlencode($userfullname) ?>&wait=<?php echo $wait ?>');
 108   }
 109
 110   setTimeout("redirect()", <?php echo ($wait*1000) ?>);
 111 -->
 112 </script>
 113
 114 </body>
 115 </html>