plugin/external_link.inc.php

   1 <?php
   2 // PukiWiki - Yet another WikiWikiWeb clone.
   3 // external_link.inc.php
   4 // Copyright
   5 //   2018 PukiWiki Development Team
   6 // License: GPL v2 or (at your option) any later version
   7 //
   8 // PukiWiki External Link Plugin
   9
  10 function plugin_external_link_action()
  11 {
  12         global $vars, $external_link_cushion, $_external_link_messages;
  13         $charset = CONTENT_CHARSET;
  14         header('Content-Type: text/html; charset=' . $charset);
  15         $valid_url = false;
  16         if (isset($vars['url'])) {
  17                 $url = $vars['url'];
  18                 if (is_url($url)) {
  19                         $valid_url = true;
  20                 }
  21         }
  22         if (!$valid_url) {
  23                 $error_message = <<< EOM
  24 <html>
  25   <body>
  26     The URL is invalid.
  27   </body>
  28 </html>
  29 EOM;
  30                 print($error_message);
  31                 exit;
  32         }
  33         $encoded_url = htmlsc($url);
  34         $refreshwait = $external_link_cushion['wait_seconds'];
  35         $h_title = htmlsc(str_replace('%s', $url, $_external_link_messages['page_title']));
  36         $h_desc = htmlsc($_external_link_messages['desc']);
  37         $h_wait = htmlsc(str_replace('%s', (string)$external_link_cushion['wait_seconds'],
  38                 $_external_link_messages['wait_n_seconds']));
  39         $body = <<< EOM
  40 <html>
  41   <head>
  42     <meta http-equiv="Content-Type" content="text/html; charset=$charset" />
  43     <meta http-equiv="Refresh" content="$refreshwait;URL=$encoded_url" />
  44     <title>$h_title</title>
  45   </head>
  46   <body>
  47                 <p>$h_desc</p>
  48                 <p>$h_wait</p>
  49                 <p><a href="$encoded_url">$encoded_url</a></p>
  50   </body>
  51 </html>
  52 EOM;
  53         print($body);
  54         exit;
  55 }