miteruzo
113 lines
4.1 KiB
PHP
113 lines
4.1 KiB
PHP
<?php
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/**
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* Move Plugin Page Rewrite Functionality
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*
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* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
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* @author Andreas Gohr <gohr@cosmocode.de>
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*/
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// must be run within Dokuwiki
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if(!defined('DOKU_INC')) die();
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/**
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* Class action_plugin_move_rewrite
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*/
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class action_plugin_move_rewrite extends DokuWiki_Action_Plugin {
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/**
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* Register event handlers.
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*
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* @param Doku_Event_Handler $controller The plugin controller
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*/
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public function register(Doku_Event_Handler $controller) {
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$controller->register_hook('IO_WIKIPAGE_READ', 'AFTER', $this, 'handle_read', array());
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$controller->register_hook('PARSER_CACHE_USE', 'BEFORE', $this, 'handle_cache', array());
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}
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/**
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* Rewrite pages when they are read and they need to be updated.
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*
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* @param Doku_Event $event The event object
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* @param mixed $param Optional parameters (not used)
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*/
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function handle_read(Doku_Event $event, $param) {
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global $ACT, $conf;
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static $stack = array();
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// handle only reads of the current revision
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if($event->data[3]) return;
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// only rewrite if not in move already
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$save = true;
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if(helper_plugin_move_rewrite::isLocked()) {
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$save = false;
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}
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$id = $event->data[2];
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if($event->data[1]) $id = $event->data[1] . ':' . $id;
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if(!$id) {
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// try to reconstruct the id from the filename
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$path = $event->data[0][0];
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if(strpos($path, $conf['datadir']) === 0) {
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$path = substr($path, strlen($conf['datadir']) + 1);
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$id = pathID($path);
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}
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}
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if(isset($stack[$id])) return;
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// Don't change the page when the user is currently changing the page content or the page is locked
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$forbidden_actions = array('save', 'preview', 'recover', 'revert');
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if((isset($ACT) && (
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in_array($ACT, $forbidden_actions) || (is_array($ACT) && in_array(key($ACT), $forbidden_actions)
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)))
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// checklock checks if the page lock hasn't expired and the page hasn't been locked by another user
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// the file exists check checks if the page is reported unlocked if a lock exists which means that
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// the page is locked by the current user
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|| checklock($id) !== false || @file_exists(wikiLockFN($id))
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) return;
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/** @var helper_plugin_move_rewrite $helper */
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$helper = plugin_load('helper', 'move_rewrite', true);
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if(!is_null($helper)) {
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$stack[$id] = true;
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$event->result = $helper->rewritePage($id, $event->result, $save);
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unset($stack[$id]);
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}
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}
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/**
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* Handle the cache events, it looks if a page needs to be rewritten so it can expire the cache of the page
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*
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* @param Doku_Event $event The even object
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* @param mixed $param Optional parameters (not used)
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*/
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function handle_cache(Doku_Event $event, $param) {
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global $conf;
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/** @var $cache cache_parser */
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$cache = $event->data;
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$id = $cache->page;
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if(!$id) {
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// try to reconstruct the id from the filename
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$path = $cache->file;
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if(strpos($path, $conf['datadir']) === 0) {
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$path = substr($path, strlen($conf['datadir']) + 1);
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$id = pathID($path);
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}
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}
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if($id) {
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/** @var helper_plugin_move_rewrite $helper */
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$helper = $this->loadHelper('move_rewrite');
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if(!is_null($helper)) {
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$meta = $helper->getMoveMeta($id);
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if($meta && ($meta['pages'] || $meta['media'])) {
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$file = wikiFN($id, '', false);
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if(is_writable($file))
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$cache->depends['purge'] = true;
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else // FIXME: print error here or fail silently?
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msg('Error: Page ' . hsc($id) . ' needs to be rewritten because of page renames but is not writable.', -1);
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}
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}
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}
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}
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}
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