Temporary conversion plugin for new fnencode FS#2197

This plugin converts existing filenames that were stored using the
option "safe" in fnencode from using the dot (.) as post_indicator to
using a bracket (]) as post_insdicator. It will also add a
post_indicator at the end of the file name should it be missing (Bug
FS#2122).

This plugin needs testing by people using the safe encode option!

lib/plugins/safefnrecode/action.php

+<?php
+/**
+ * DokuWiki Plugin safefnrecode (Action Component)
+ *
+ * @license GPL 2 http://www.gnu.org/licenses/gpl-2.0.html
+ * @author  Andreas Gohr <andi@splitbrain.org>
+ */
+
+// must be run within Dokuwiki
+if (!defined('DOKU_INC')) die();
+
+require_once DOKU_PLUGIN.'action.php';
+
+class action_plugin_safefnrecode extends DokuWiki_Action_Plugin {
+
+    public function register(Doku_Event_Handler &$controller) {
+
+       $controller->register_hook('INDEXER_TASKS_RUN', 'BEFORE', $this, 'handle_indexer_tasks_run');
+
+    }
+
+    public function handle_indexer_tasks_run(Doku_Event &$event, $param) {
+        global $conf;
+        if($conf['fnencode'] != 'safe') return;
+
+        if(!file_exists($conf['datadir'].'_safefn.recoded')){
+            $this->recode($conf['datadir']);
+            touch($conf['datadir'].'_safefn.recoded');
+        }
+
+        if(!file_exists($conf['olddir'].'_safefn.recoded')){
+            $this->recode($conf['olddir']);
+            touch($conf['olddir'].'_safefn.recoded');
+        }
+
+        if(!file_exists($conf['metadir'].'_safefn.recoded')){
+            $this->recode($conf['metadir']);
+            touch($conf['metadir'].'_safefn.recoded');
+        }
+
+        if(!file_exists($conf['mediadir'].'_safefn.recoded')){
+            $this->recode($conf['metadir']);
+            touch($conf['metadir'].'_safefn.recoded');
+        }
+
+    }
+
+    /**
+     * Recursive function to rename all safe encoded files to use the new
+     * square bracket post indicator
+     */
+    private function recode($dir){
+        $dh = opendir($dir);
+        if(!$dh) return;
+        while (($file = readdir($dh)) !== false) {
+            if($file == '.' || $file == '..') continue;           # cur and upper dir
+            if(is_dir("$dir/$file")) $this->recode("$dir/$file"); #recurse
+            if(strpos('%',$file) === false) continue;             # no encoding used
+            $new = preg_replace('/(%.*?)\./','\1]',$file);        # new post indicator
+            if(preg_match('/%[^\.]+$/',$new)) $new .= ']';        # fix end FS#2122
+            rename("$dir/$file","$dir/$new");                     # rename it
+        }
+        closedir($dh);
+    }
+
+}
+
+// vim:ts=4:sw=4:et:

lib/plugins/safefnrecode/plugin.info.txt

+base   safefnrecode
+author Andreas Gohr
+email  andi@splitbrain.org
+date   2011-04-03
+name   safefnrecode plugin
+desc   Changes existing page and foldernames for the change in the safe filename encoding
+url    http://www.dokuwiki.org/plugin:safefnrecode