xref: /dokuwiki/inc/Action/Search.php (revision 7fcedc39d164da3013a88e9ad6660009940e851b) 
1<?php
2
3namespace dokuwiki\Action;
4
5use dokuwiki\Action\Exception\ActionAbort;
6use dokuwiki\Search\FulltextSearch;
7use dokuwiki\Search\MetadataSearch;
8use dokuwiki\Search\QueryParser;
9
10/**
11 * Class Search
12 *
13 * Search for pages and content
14 *
15 * @package dokuwiki\Action
16 */
17class Search extends AbstractAction {
18
19    protected $pageLookupResults = array();
20    protected $fullTextResults = array();
21    protected $highlight = array();
22
23    /** @inheritdoc */
24    public function minimumPermission() {
25        return AUTH_NONE;
26    }
27
28    /**
29     * we only search if a search word was given
30     *
31     * @inheritdoc
32     */
33    public function checkPreconditions() {
34        parent::checkPreconditions();
35    }
36
37    public function preProcess()
38    {
39        global $QUERY, $ID, $conf, $INPUT;
40        $s = cleanID($QUERY);
41
42        if ($ID !== $conf['start'] && !$INPUT->has('q')) {
43            parse_str($INPUT->server->str('QUERY_STRING'), $urlParts);
44            $urlParts['q'] = $urlParts['id'];
45            unset($urlParts['id']);
46            $url = wl($ID, $urlParts, true, '&');
47            send_redirect($url);
48        }
49
50        if ($s === '') throw new ActionAbort();
51        $this->adjustGlobalQuery();
52    }
53
54    /** @inheritdoc */
55    public function tplContent()
56    {
57        $this->execute();
58
59        $search = new \dokuwiki\Ui\Search($this->pageLookupResults, $this->fullTextResults, $this->highlight);
60        $search->show();
61    }
62
63
64    /**
65     * run the search
66     */
67    protected function execute()
68    {
69        global $INPUT, $QUERY;
70        $after = $INPUT->str('min');
71        $before = $INPUT->str('max');
72        $this->pageLookupResults = (new MetadataSearch)->pageLookup(
73                $QUERY, true, useHeading('navigation'), $after, $before
74        );
75        $this->fullTextResults = (new FulltextSearch)->pageSearch(
76                $QUERY, $highlight, $INPUT->str('srt'), $after, $before
77        );
78        $this->highlight = $highlight;
79    }
80
81    /**
82     * Adjust the global query accordingly to the config search_nslimit and search_fragment
83     *
84     * This will only do something if the search didn't originate from the form on the searchpage itself
85     */
86    protected function adjustGlobalQuery()
87    {
88        global $conf, $INPUT, $QUERY, $ID;
89
90        if ($INPUT->bool('sf')) {
91            return;
92        }
93
94        $parsedQuery = (new QueryParser)->convert($QUERY);
95
96        if (empty($parsedQuery['ns']) && empty($parsedQuery['notns'])) {
97            if ($conf['search_nslimit'] > 0) {
98                if (getNS($ID) !== false) {
99                    $nsParts = explode(':', getNS($ID));
100                    $ns = implode(':', array_slice($nsParts, 0, $conf['search_nslimit']));
101                    $QUERY .= " @$ns";
102                }
103            }
104        }
105
106        if ($conf['search_fragment'] !== 'exact') {
107            if (empty(array_diff($parsedQuery['words'], $parsedQuery['and']))) {
108                if (strpos($QUERY, '*') === false) {
109                    $queryParts = explode(' ', $QUERY);
110                    $queryParts = array_map(function ($part) {
111                        if (strpos($part, '@') === 0) {
112                            return $part;
113                        }
114                        if (strpos($part, 'ns:') === 0) {
115                            return $part;
116                        }
117                        if (strpos($part, '^') === 0) {
118                            return $part;
119                        }
120                        if (strpos($part, '-ns:') === 0) {
121                            return $part;
122                        }
123
124                        global $conf;
125
126                        if ($conf['search_fragment'] === 'starts_with') {
127                            return $part . '*';
128                        }
129                        if ($conf['search_fragment'] === 'ends_with') {
130                            return '*' . $part;
131                        }
132
133                        return '*' . $part . '*';
134
135                    }, $queryParts);
136                    $QUERY = implode(' ', $queryParts);
137                }
138            }
139        }
140    }
141}
142