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1 | <?php |
2 | /** |
3 | * This program is free software; you can redistribute it and/or modify |
4 | * it under the terms of the GNU General Public License as published by |
5 | * the Free Software Foundation; either version 2 of the License, or |
6 | * (at your option) any later version. |
7 | * |
8 | * This program is distributed in the hope that it will be useful, |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
11 | * GNU General Public License for more details. |
12 | * |
13 | * You should have received a copy of the GNU General Public License along |
14 | * with this program; if not, write to the Free Software Foundation, Inc., |
15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
16 | * http://www.gnu.org/copyleft/gpl.html |
17 | * |
18 | * @file |
19 | */ |
20 | |
21 | namespace MediaWiki\Interwiki; |
22 | |
23 | use MediaWiki\Site\MediaWikiSite; |
24 | use MediaWiki\Site\Site; |
25 | use MediaWiki\Site\SiteLookup; |
26 | |
27 | /** |
28 | * InterwikiLookupAdapter on top of SiteLookup |
29 | * |
30 | * @since 1.29 |
31 | * @license GPL-2.0-or-later |
32 | */ |
33 | class InterwikiLookupAdapter implements InterwikiLookup { |
34 | |
35 | /** |
36 | * @var SiteLookup |
37 | */ |
38 | private $siteLookup; |
39 | |
40 | /** |
41 | * @var Interwiki[]|null associative array mapping interwiki prefixes to Interwiki objects |
42 | */ |
43 | private $interwikiMap; |
44 | |
45 | public function __construct( |
46 | SiteLookup $siteLookup, |
47 | ?array $interwikiMap = null |
48 | ) { |
49 | $this->siteLookup = $siteLookup; |
50 | $this->interwikiMap = $interwikiMap; |
51 | } |
52 | |
53 | /** |
54 | * See InterwikiLookup::isValidInterwiki |
55 | * It loads the whole interwiki map. |
56 | * |
57 | * @param string $prefix Interwiki prefix to use |
58 | * @return bool Whether it exists |
59 | */ |
60 | public function isValidInterwiki( $prefix ) { |
61 | return array_key_exists( $prefix, $this->getInterwikiMap() ); |
62 | } |
63 | |
64 | /** |
65 | * See InterwikiLookup::fetch |
66 | * It loads the whole interwiki map. |
67 | * |
68 | * @param string $prefix Interwiki prefix to use |
69 | * @return Interwiki|null|bool |
70 | */ |
71 | public function fetch( $prefix ) { |
72 | if ( $prefix == '' ) { |
73 | return null; |
74 | } |
75 | |
76 | if ( !$this->isValidInterwiki( $prefix ) ) { |
77 | return false; |
78 | } |
79 | |
80 | // @phan-suppress-next-line PhanTypeArraySuspiciousNullable |
81 | return $this->interwikiMap[$prefix]; |
82 | } |
83 | |
84 | /** |
85 | * See InterwikiLookup::getAllPrefixes |
86 | * |
87 | * @param bool|null $local If set, limits output to local/non-local interwikis |
88 | * @return array[] interwiki rows |
89 | */ |
90 | public function getAllPrefixes( $local = null ) { |
91 | $res = []; |
92 | foreach ( $this->getInterwikiMap() as $interwikiId => $interwiki ) { |
93 | if ( $local === null || $interwiki->isLocal() === $local ) { |
94 | $res[] = [ |
95 | 'iw_prefix' => $interwikiId, |
96 | 'iw_url' => $interwiki->getURL(), |
97 | 'iw_api' => $interwiki->getAPI(), |
98 | 'iw_wikiid' => $interwiki->getWikiID(), |
99 | 'iw_local' => $interwiki->isLocal(), |
100 | 'iw_trans' => $interwiki->isTranscludable(), |
101 | ]; |
102 | } |
103 | } |
104 | return $res; |
105 | } |
106 | |
107 | /** |
108 | * See InterwikiLookup::invalidateCache |
109 | * |
110 | * @param string $prefix |
111 | */ |
112 | public function invalidateCache( $prefix ) { |
113 | if ( !isset( $this->interwikiMap[$prefix] ) ) { |
114 | return; |
115 | } |
116 | $globalId = $this->interwikiMap[$prefix]->getWikiID(); |
117 | unset( $this->interwikiMap[$prefix] ); |
118 | |
119 | // Reload the interwiki |
120 | $site = $this->siteLookup->getSites()->getSite( $globalId ); |
121 | $interwikis = $this->getSiteInterwikis( $site ); |
122 | $this->interwikiMap = array_merge( $this->interwikiMap, [ $interwikis[$prefix] ] ); |
123 | } |
124 | |
125 | /** |
126 | * Load interwiki map to use as cache |
127 | */ |
128 | private function loadInterwikiMap() { |
129 | $interwikiMap = []; |
130 | $siteList = $this->siteLookup->getSites(); |
131 | foreach ( $siteList as $site ) { |
132 | $interwikis = $this->getSiteInterwikis( $site ); |
133 | $interwikiMap = array_merge( $interwikiMap, $interwikis ); |
134 | } |
135 | $this->interwikiMap = $interwikiMap; |
136 | } |
137 | |
138 | /** |
139 | * Get interwikiMap attribute, load if needed. |
140 | * |
141 | * @return Interwiki[] |
142 | */ |
143 | private function getInterwikiMap() { |
144 | if ( $this->interwikiMap === null ) { |
145 | $this->loadInterwikiMap(); |
146 | } |
147 | return $this->interwikiMap; |
148 | } |
149 | |
150 | /** |
151 | * Load interwikis for the given site |
152 | * |
153 | * @param Site $site |
154 | * @return Interwiki[] |
155 | */ |
156 | private function getSiteInterwikis( Site $site ) { |
157 | $url = $site->getPageUrl(); |
158 | if ( $site instanceof MediaWikiSite ) { |
159 | $path = $site->getFileUrl( 'api.php' ); |
160 | } else { |
161 | $path = ''; |
162 | } |
163 | $local = $site->getSource() === 'local'; |
164 | |
165 | $interwikis = []; |
166 | foreach ( $site->getInterwikiIds() as $interwiki ) { |
167 | // TODO: How to adapt trans? |
168 | $interwikis[$interwiki] = new Interwiki( |
169 | $interwiki, |
170 | $url, |
171 | $path, |
172 | $site->getGlobalId(), |
173 | $local |
174 | ); |
175 | } |
176 | return $interwikis; |
177 | } |
178 | } |