Page Redirector

This plugin allows you to redirect users between pages and namespaces by adding a particular pattern to a page.

To cut down on the work needed when updating this plugin, I have decided to keep downloads, install, usage, history and so on, on my own site. Since that wiki isn't open to be edited without a user, I figured it would be best to leave discussion, ideas, bugs here. You are also welcome to email me. — David Lorentsen 2007-01-24 20:12

After the plugin is installed, a simple code redirects to another page:

~~REDIRECT>namespace:page~~

• Download & further Instructions: http://wiki.zyberdog.dk/php/dw/pageredirect

I'm not sure if this is the current source, but I'm adding it here as the author's link seems to be returning a 404 not found error. — Christopher Smith 2008/12/11 14:13

<?php
/**
 * Action Plugin:   Redirects page requests based on content
 * 
 * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
 * @author     David Lorentsen <zyberdog@quakenet.org>  
 */
 
if(!defined('DOKU_INC')) die();
 
if(!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');
require_once(DOKU_PLUGIN.'action.php');
 
/**
 * All DokuWiki action plugins need to inherit from this class
 */
class action_plugin_page_redirect extends DokuWiki_Action_Plugin {
 
    /**
     * return some info
     */
    function getInfo(){
      return array(
        'author' => 'David Lorentsen',
        'email'  => 'zyberdog@quakenet.org',
        'date'   => '2006-11-09',
        'name'   => 'Page Redirector',
        'desc'   => 'Redirects page requests based on content',
        'url'    => 'http://wiki.splitbrain.org/plugin:page_redirector',
      );
    }
 
    function register(&$controller) {
      $controller->register_hook('ACTION_ACT_PREPROCESS','BEFORE', $this, 'handle_page_redirect');
    }
 
    function handle_page_redirect(&$event, $param) {
      global $ID;
      if ($event->data == 'show') {
        if (isset($_GET['redirect']) && $_GET['redirect'] == 'no') { return; }
        $file = wikiFN($ID,'');
        $content = io_readfile($file);
        if (preg_match('/~~REDIRECT>([a-zA-Z0-9_\-:]+)~~/', $content, $matches)) {
          header("Location: ".wl($matches[1],'',TRUE));
        }
      }
    }
 
 
}
 
//Setup VIM: ex: et ts=4 enc=utf-8 :

The Portuguese-BR translations:

<?php
/**
 * Portuguese-br language for Page Redirect plugin
 */
 
$lang['redirect_to']     = "Esta página é um redirecionador para %s.";
$lang['redirected_from'] = "Você foi redirecionado de %s.";

— Juliano Cezar 2011/08/19 09:20

For plugin version 2007-01-24.

lang.php

<?php
/**
 * Traditional Chinese language for Page Redirect plugin
 *
 * @license:    GPL 2 (http://www.gnu.org/licenses/gpl.html)
 * @author:     Danny Lin <danny0838[at]pchome[dot]com[dot]tw>
 */
 
$lang['redirect_to']     = "本頁已重定向至 %s。";
$lang['redirected_from'] = "本頁重定向自 %s。";

settings.php

<?php
/**
 * Traditional Chinese for Page Redirect plugin
 *
 * @license:    GPL 2 (http://www.gnu.org/licenses/gpl.html)
 * @author:     Danny Lin <danny0838[at]pchome[dot]com[dot]tw>
 */
 
$lang['show_note'] = '在重定向目標頁顯示提示？';

lang.php

<?php
/**
 * Traditional Korean for Page Redirect plugin
 *
 * @license:    GPL 2 (http://www.gnu.org/licenses/gpl.html)
 * @author:     David Lorentsen <zyberdog@quakenet.org>
 */
 
$lang['redirect_to']     = "이 페이지는 옮겨졌습니다. 새로운 페이지는 %s입니다.";
$lang['redirected_from'] = "%s에서 넘어왔습니다.";

settings.php

<?php
/**
 * Traditional Korean for Page Redirect plugin
 *
 * @license:    GPL 2 (http://www.gnu.org/licenses/gpl.html)
 * @author:     David Lorentsen <zyberdog@quakenet.org>
 */
 
$lang['show_note'] = '리디렉션되는 페이지에 메모를 표시할까요?';
 

— wincomiwincomi

2012/01/27 09:25

I use the vector template, so I prefer a wikipedia look, I modified the css so it looks like wikipedia:

.dokuwiki div.noteredirect {
  color: #7D7D7D;
  font-size: 84%;
  line-height: 1.2em;
  margin: 1em 0 1.4em 1em;
  width: auto;
  }

Also, the Dutch translations:

<?php
/**
 * Dutch language for Page Redirect plugin
 */
 
$lang['redirect_to']     = "De pagina is verplaatst. De nieuwe locatie is %s.";
$lang['redirected_from'] = "Doorverwezen vanaf %s.";

— Theo-KTheo-K

Emmen, Nederland 2010/12/29 10:22

The wantedpages.php script breaks with this plugin:

ornellas@pound:~/ornellas.apanela.com/dokuwiki/bin$ php wantedpages.php

Fatal error: Call to undefined function  html_wikilink() in /home/.karamazov/ornellas/ornellas.apanela.com/dokuwiki/lib/plugins/pageredirect/syntax.php on line 50
ornellas@pound:~/ornellas.apanela.com/dokuwiki/bin$

To fix it, edit lib/plugins/pageredirect/syntax.php. After the first require_once add:

require_once(DOKU_INC.'inc/html.php');

This should solve the issue.

I have the same problem when using EasyPHP, though adding require_once(DOKU_INC.'inc/html.php'); doesn't seem to work for me?
— Theo-KTheo-K

Emmen, Nederland 2011/01/07 11:04

I had a problem with this plugin. One of pages was using it to redirect user to other page (A → B), but later I decided to “switch” pages and make the redirection work in the other direction: B → A. I removed redirection line from page A and added text onto this page; then removed text from site B and added a redirection line. All I get was a loop redirection (stopped after 5 redirections). Disabling and enabling or even reinstalling the plugin did not help…

Anyone solved this?

Solution: Open the redirect page you want to edit with the parameter ”?redirect=no” in the URL and you will get the page without getting redirected. — Markus Frosch 2008/08/06 10:17

Maybe an idea to lift this one from devel status so that it can be added to http://wikimatrix.org ? I just can't stand the idea that it is not available in DokuWiki

If you redirect something it keeps redirecting even if you uninstall and reinstall a fresh plugin….does anyone know where the heck this data is stored so I can go in and change it.

Did you try ~~NOCACHE~~ on the redirected page?

For me the notice that I was redirected didn't display on the page. It's cause by the session not being started. The solution is to add session_start(); just underneath require_once(DOKU_PLUGIN.'action.php'); and comment out the other line that says session_start(); just above $_SESSION[DOKU_COOKIE]['redirect'] = $ID; — Ryan McCue

There's a slight problem with the plugin: if the page has a period in it's name the plugin won't work. Could you make it accept periods in the title? -Claws

I confirm. — Floriang 2009/05/17 18:44

The code you append to the URL to stop the redirect is ”&redirect=no”. -tjones

Redirecting to pages with Cyrillic names won't work! :( Can anyone help to solve this issue? -lolmaus

I've made patch that will allow anything in redirected page name, it works as the link is converted to wiki path internally

http://cvs.pld-linux.org/cgi-bin/cvsweb.cgi/SOURCES/dokuwiki-plugin-pageredirect-pagematch.patch

— Elan Ruusamäe 2008/01/25 11:41

It says for build-2: “Optional text to tell the user he has been redirected.” Where is this described? I found no hints anywhere?! Bernd, April 16, 2008, 14:19

Is there a way to make the “Index” page exclude redirects? Thanks, – Matthew Pietz, 2008-07-22 14:17:23

Developer, do you plan on updating the plugin to merge the bug fix for the wantedpages.php script bug? The patch is in this page, only a merge is needed. Please update if you can. — Dace 2008/11/05 13:10

For me I changed the regex from ”~~REDIRECT>[a-zA-Z0-9_\-:]+~~” to ”~~REDIRECT>[a-zA-Z0-9_\-:\.]+~~”, because in my wiki I have pagenames including ”.”. Is there a reason why hasn't been done in the original plugin? Dominik, 13.11.2008

This plugin sends my webserver into an infinite loop when I try to access (or even link to) a page with a redirect on it while useheading is enabled.

I managed to change this plugin so that it accepts the quasi-standard ”#REDIRECT namespace:pagename” (or even ”#REDIRECT namespace/pagename”) syntax for the declaration. This is how:

Step 1: Change line #39 of syntax.php from this:

$this->Lexer->addSpecialPattern('~~REDIRECT>[a-zA-Z0-9_\-:]+~~', $mode, 'plugin_pageredirect');

To this:

$this->Lexer->addSpecialPattern('#REDIRECT .+', $mode, 'plugin_pageredirect');

Step 2: Change line #47 of syntax.php from this:

$page = substr($match,11,-2);

To this:

$page = substr($match,10,-1);

Seems to work just fine for me, although I haven't exactly stress-tested it or anything. You can grab a zipfile (which should work with Plugin Manager) with this revision included at http://nwcs.com/~jvc/pageredirect_modified.zip.
— Jo Valentine-Cooper, 2 August 2009

Thanks for David Lorentsen and Jo Valentine-Cooper. Now it works on multi-byte characters page. 1 January 2010 —raychani

Please correct your CSS.

The following lines are not valid:

style.css

-moz-border-radius: 10px;
-khtml-border-radius: 10px;
border-radius: 10px;

— flamflam

Aachen 2011/01/05 12:13

I made a fix so that it supports non-ASCII pagenames, also for supporting . .. : shortcuts.

Fix the following lines in syntax.php:

Find:

		$this->Lexer->addSpecialPattern('~~REDIRECT>[a-zA-Z0-9_\-:]+~~', $mode, 'plugin_pageredirect');

Replace with:

		$this->Lexer->addSpecialPattern('~~REDIRECT>[^\n~]+~~', $mode, 'plugin_pageredirect');

Find:

	function handle($match, $state, $pos, &$handler) {
		// extract target page from match pattern
		$page = substr($match,11,-2);
 
		// prepare message here instead of in render
		$message = '<div class="noteredirect">'.sprintf($this->getLang('redirect_to'), html_wikilink($page)).'</div>';
 
		return Array($page, $message);
	}

Replace with:

	function handle($match, $state, $pos, &$handler) {
		global $NS;
		// extract target page from match pattern
		$page = substr($match,11,-2);
		resolve_pageid($NS,$page,$exists);
 
		// prepare message here instead of in render
		$message = '<div class="noteredirect">'.sprintf($this->getLang('redirect_to'), html_wikilink($page)).'</div>';
 
		return Array($page, $message);
	}

— danny0838danny0838

2011/01/12 11:08

redirect+anchor.diff

diff -ruN pageredirect.old/action.php pageredirect/action.php
--- pageredirect.old/action.php     2007-01-24 12:36:36.000000000 +0100
+++ pageredirect/action.php     2011-01-13 14:39:42.000000000 +0100
@@ -65,7 +65,11 @@
                        }
 
                        // redirect
-                       header("Location: ".wl($page, Array('redirect' => $redirect), TRUE, '&'));
+                       $anchor='';
+                       $tmp=explode('#',$page,2);
+                       $page=$tmp[0];
+                       $anchor=$tmp[1];
+                       header("Location: ".wl($page, Array('redirect' => $redirect), TRUE, '&').'#'.$anchor);
                        exit();
                }
        }
diff -ruN pageredirect.old/syntax.php pageredirect/syntax.php
--- pageredirect.old/syntax.php     2007-01-24 12:36:50.000000000 +0100
+++ pageredirect/syntax.php     2011-01-13 08:40:36.000000000 +0100
@@ -36,7 +36,7 @@
        function getSort() { return 1; }
 
        function connectTo($mode) {
-               $this->Lexer->addSpecialPattern('~~REDIRECT>[a-zA-Z0-9_\-:]+~~', $mode, 'plugin_pageredirect');
+               $this->Lexer->addSpecialPattern('~~REDIRECT>[a-zA-Z0-9_\-:#]+~~', $mode, 'plugin_pageredirect');
        }
 
        /**

— einhirnChristian Marg
einhirn

2011/01/13 14:48

This plugin manages to add a note before template parsing. Thus it may conflict with other plugins that use “TPL_ACT_RENDER” “BEFORE” event hook. It conflicts with asiansearch as far as I know.

We can fix it by making this plugin go first, edit action.php:

Find:

		$controller->register_hook('PARSER_METADATA_RENDER','BEFORE', $this, 'handle_pageredirect_metadata');

Replace with:

		$controller->register_hook('PARSER_METADATA_RENDER','BEFORE', $this, 'handle_pageredirect_metadata');
		// This plugin goes first
		$hooks =& $controller->_hooks[TPL_ACT_RENDER_BEFORE];
		if ( $hooks[0][0] != $this) array_unshift( $hooks, array_pop($hooks) );

— danny0838danny0838

2011/01/12 10:45

Please Add this:

header("HTTP/1.1 301 Moved Permanently");

to your Redirect… else redirect will not recognized by spiders.

I have dokuwiki 2009-12-25c “Lemming” running on a debian server. After updating PHP from 5.2.6 to 5.3.3 I get this error message:

• Warning: Attempt to modify property of non-object in /var/www/mysite/lib/plugins/pageredirect/action.php on line 94

So I inserted a check on line 94 before the unset:

if ( isset ( $event->data->meta['relation']['isreplacedby'] ) ) { unset .. }

Maybe this should be corrected in a coming version. Bernd

Just coded your fix, because dokuwiki otherwise replaces –> by →, making copy and paste fail. – ojdo 2011/10/25

Since there's no package more recent than the 2007 version, anyone objecting if I integrate some of the above fixes and suggestions in a new package for download? – — Luis Machuca BezzazaLuis Machuca Bezzaza
ryan.chappelle

Temuco, Chile 2012/01/20 17:38