xref: /dokuwiki/inc/Action/Export.php (revision ab583a1bc44ef1ef3b917647fc361aabd055c2ac) 
1<?php
2
3namespace dokuwiki\Action;
4
5use dokuwiki\Action\Exception\ActionAbort;
6
7/**
8 * Class Export
9 *
10 * Handle exporting by calling the appropriate renderer
11 *
12 * @package dokuwiki\Action
13 */
14class Export extends AbstractAction {
15
16    /** @inheritdoc */
17    function minimumPermission() {
18        return AUTH_READ;
19    }
20
21    // FIXME proper mode should be checked
22
23    /**
24     * Export a wiki page for various formats
25     *
26     * Triggers ACTION_EXPORT_POSTPROCESS
27     *
28     *  Event data:
29     *    data['id']      -- page id
30     *    data['mode']    -- requested export mode
31     *    data['headers'] -- export headers
32     *    data['output']  -- export output
33     *
34     * @author Andreas Gohr <andi@splitbrain.org>
35     * @author Michael Klier <chi@chimeric.de>
36     * @inheritdoc
37     */
38    public function preProcess() {
39        global $ID;
40        global $REV;
41        global $conf;
42        global $lang;
43
44        $pre = '';
45        $post = '';
46        $headers = array();
47
48        // search engines: never cache exported docs! (Google only currently)
49        $headers['X-Robots-Tag'] = 'noindex';
50
51        $mode = substr('FIXME', 7); // FIXME how to pass the proper mode?
52        switch($mode) {
53            case 'raw':
54                $headers['Content-Type'] = 'text/plain; charset=utf-8';
55                $headers['Content-Disposition'] = 'attachment; filename=' . noNS($ID) . '.txt';
56                $output = rawWiki($ID, $REV);
57                break;
58            case 'xhtml':
59                $pre .= '<!DOCTYPE html>' . DOKU_LF;
60                $pre .= '<html lang="' . $conf['lang'] . '" dir="' . $lang['direction'] . '">' . DOKU_LF;
61                $pre .= '<head>' . DOKU_LF;
62                $pre .= '  <meta charset="utf-8" />' . DOKU_LF; // FIXME improve wrapper
63                $pre .= '  <title>' . $ID . '</title>' . DOKU_LF;
64
65                // get metaheaders
66                ob_start();
67                tpl_metaheaders();
68                $pre .= ob_get_clean();
69
70                $pre .= '</head>' . DOKU_LF;
71                $pre .= '<body>' . DOKU_LF;
72                $pre .= '<div class="dokuwiki export">' . DOKU_LF;
73
74                // get toc
75                $pre .= tpl_toc(true);
76
77                $headers['Content-Type'] = 'text/html; charset=utf-8';
78                $output = p_wiki_xhtml($ID, $REV, false);
79
80                $post .= '</div>' . DOKU_LF;
81                $post .= '</body>' . DOKU_LF;
82                $post .= '</html>' . DOKU_LF;
83                break;
84            case 'xhtmlbody':
85                $headers['Content-Type'] = 'text/html; charset=utf-8';
86                $output = p_wiki_xhtml($ID, $REV, false);
87                break;
88            default:
89                $output = p_cached_output(wikiFN($ID, $REV), $mode, $ID);
90                $headers = p_get_metadata($ID, "format $mode");
91                break;
92        }
93
94        // prepare event data
95        $data = array();
96        $data['id'] = $ID;
97        $data['mode'] = $mode;
98        $data['headers'] = $headers;
99        $data['output'] =& $output;
100
101        trigger_event('ACTION_EXPORT_POSTPROCESS', $data);
102
103        if(!empty($data['output'])) {
104            if(is_array($data['headers'])) foreach($data['headers'] as $key => $val) {
105                header("$key: $val");
106            }
107            print $pre . $data['output'] . $post;
108            exit;
109        }
110
111        throw new ActionAbort();
112    }
113
114}
115