xref: /dokuwiki/inc/Action/Search.php (revision 2ce8affc66a5825b8eb9f401e287a2315987d62a) 
1<?php
2
3namespace dokuwiki\Action;
4
5use dokuwiki\Action\Exception\ActionAbort;
6
7/**
8 * Class Search
9 *
10 * Search for pages and content
11 *
12 * @package dokuwiki\Action
13 */
14class Search extends AbstractAction {
15
16    protected $pageLookupResults = array();
17    protected $fullTextResults = array();
18    protected $highlight = array();
19
20    /** @inheritdoc */
21    public function minimumPermission() {
22        return AUTH_NONE;
23    }
24
25    /**
26     * we only search if a search word was given
27     *
28     * @inheritdoc
29     */
30    public function checkPermissions() {
31        parent::checkPermissions();
32    }
33
34    public function preProcess()
35    {
36        global $QUERY, $ID, $conf, $INPUT;
37        $s = cleanID($QUERY);
38
39        if ($ID !== $conf['start'] && $s === '') {
40            parse_str($INPUT->server->str('QUERY_STRING'), $urlParts);
41            $urlParts['q'] = $urlParts['id'];
42            $urlParts['id'] = $conf['start'];
43            $url = DOKU_URL . DOKU_SCRIPT . '?' . http_build_query($urlParts, null, '&');
44            send_redirect($url);
45        }
46
47        if ($s === '') throw new ActionAbort();
48        $this->adjustGlobalQuery();
49    }
50
51    /** @inheritdoc */
52    public function tplContent()
53    {
54        $this->execute();
55
56        $search = new \dokuwiki\Ui\Search($this->pageLookupResults, $this->fullTextResults, $this->highlight);
57        $search->show();
58    }
59
60
61    /**
62     * run the search
63     */
64    protected function execute()
65    {
66        global $INPUT, $QUERY;
67        $this->pageLookupResults = ft_pageLookup($QUERY, true, useHeading('navigation'));
68        $this->fullTextResults = ft_pageSearch($QUERY, $highlight, $INPUT->str('srt'));
69        $this->highlight = $highlight;
70    }
71
72    /**
73     * Adjust the global query accordingly to the config search_limit_to_first_ns and search_default_fragment_behaviour
74     *
75     * This will only do something if the search didn't originate from the form on the searchpage itself
76     */
77    protected function adjustGlobalQuery()
78    {
79        global $conf, $INPUT, $QUERY, $ID;
80
81        if ($INPUT->bool('sf')) {
82            return;
83        }
84
85        $Indexer = idx_get_indexer();
86        $parsedQuery = ft_queryParser($Indexer, $QUERY);
87
88        if (empty($parsedQuery['ns']) && empty($parsedQuery['notns'])) {
89            if ($conf['search_limit_to_first_ns'] > 0) {
90                if (getNS($ID) !== false) {
91                    $nsParts = explode(':', getNS($ID));
92                    $ns = implode(':', array_slice($nsParts, 0, $conf['search_limit_to_first_ns']));
93                    $QUERY .= " @$ns";
94                }
95            }
96        }
97
98        if ($conf['search_default_fragment_behaviour'] !== 'exact') {
99            if (empty(array_diff($parsedQuery['words'], $parsedQuery['and']))) {
100                if (strpos($QUERY, '*') === false) {
101                    $queryParts = explode(' ', $QUERY);
102                    $queryParts = array_map(function ($part) {
103                        if (strpos($part, '@') === 0) {
104                            return $part;
105                        }
106                        if (strpos($part, 'ns:') === 0) {
107                            return $part;
108                        }
109                        if (strpos($part, '^') === 0) {
110                            return $part;
111                        }
112                        if (strpos($part, '-ns:') === 0) {
113                            return $part;
114                        }
115
116                        global $conf;
117
118                        if ($conf['search_default_fragment_behaviour'] === 'starts_with') {
119                            return $part . '*';
120                        }
121                        if ($conf['search_default_fragment_behaviour'] === 'ends_with') {
122                            return '*' . $part;
123                        }
124
125                        return '*' . $part . '*';
126
127                    }, $queryParts);
128                    $QUERY = implode(' ', $queryParts);
129                }
130            }
131        }
132    }
133}
134