xref: /dokuwiki/inc/Cache/CacheParser.php (revision 775003a7dfc8824e655f040724abfb8255c6da03) 
1<?php
2
3namespace dokuwiki\Cache;
4
5/**
6 * Parser caching
7 */
8class CacheParser extends Cache
9{
10
11    public $file = '';       // source file for cache
12    public $mode = '';       // input mode (represents the processing the input file will undergo)
13    public $page = '';
14
15    /**
16     *
17     * @param string $id page id
18     * @param string $file source file for cache
19     * @param string $mode input mode
20     */
21    public function __construct($id, $file, $mode)
22    {
23        global $INPUT;
24
25        if ($id) {
26            $this->page = $id;
27        }
28        $this->file = $file;
29        $this->mode = $mode;
30
31        $this->setEvent('PARSER_CACHE_USE');
32        parent::__construct($file . $INPUT->server->str('HTTP_HOST') . $INPUT->server->str('SERVER_PORT'), '.' . $mode);
33    }
34
35    /**
36     * method contains cache use decision logic
37     *
38     * @return bool               see useCache()
39     */
40    public function makeDefaultCacheDecision()
41    {
42
43        if (!file_exists($this->file)) {
44            return false;
45        }                   // source exists?
46        return parent::makeDefaultCacheDecision();
47    }
48
49    protected function addDependencies()
50    {
51
52        // parser cache file dependencies ...
53        $files = array(
54            $this->file,                              // ... source
55            DOKU_INC . 'inc/Parsing/Parser.php',                // ... parser
56            DOKU_INC . 'inc/parser/handler.php',               // ... handler
57        );
58        $files = array_merge($files, getConfigFiles('main'));    // ... wiki settings
59
60        $this->depends['files'] = !empty($this->depends['files']) ?
61            array_merge($files, $this->depends['files']) :
62            $files;
63        parent::addDependencies();
64    }
65
66}
67