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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 | use MediaWiki\Deferred\DeferredUpdates; |
22 | use MediaWiki\Logger\LoggerFactory; |
23 | use MediaWiki\Page\WikiPageFactory; |
24 | use MediaWiki\Permissions\PermissionStatus; |
25 | use MediaWiki\Status\Status; |
26 | use MediaWiki\Title\Title; |
27 | use MediaWiki\Title\TitleFormatter; |
28 | |
29 | /** |
30 | * API interface for page purging |
31 | * @ingroup API |
32 | */ |
33 | class ApiPurge extends ApiBase { |
34 | /** @var ApiPageSet|null */ |
35 | private $mPageSet = null; |
36 | |
37 | private WikiPageFactory $wikiPageFactory; |
38 | private TitleFormatter $titleFormatter; |
39 | |
40 | /** |
41 | * @param ApiMain $mainModule |
42 | * @param string $moduleName |
43 | * @param WikiPageFactory $wikiPageFactory |
44 | * @param TitleFormatter $titleFormatter |
45 | */ |
46 | public function __construct( |
47 | ApiMain $mainModule, |
48 | $moduleName, |
49 | WikiPageFactory $wikiPageFactory, |
50 | TitleFormatter $titleFormatter |
51 | ) { |
52 | parent::__construct( $mainModule, $moduleName ); |
53 | $this->wikiPageFactory = $wikiPageFactory; |
54 | $this->titleFormatter = $titleFormatter; |
55 | } |
56 | |
57 | /** |
58 | * Purges the cache of a page |
59 | */ |
60 | public function execute() { |
61 | $authority = $this->getAuthority(); |
62 | |
63 | // Fail early if the user is sitewide blocked. |
64 | $block = $authority->getBlock(); |
65 | if ( $block && $block->isSitewide() ) { |
66 | $this->dieBlocked( $block ); |
67 | } |
68 | |
69 | $params = $this->extractRequestParams(); |
70 | |
71 | $continuationManager = new ApiContinuationManager( $this, [], [] ); |
72 | $this->setContinuationManager( $continuationManager ); |
73 | |
74 | $forceLinkUpdate = $params['forcelinkupdate']; |
75 | $forceRecursiveLinkUpdate = $params['forcerecursivelinkupdate']; |
76 | $pageSet = $this->getPageSet(); |
77 | $pageSet->execute(); |
78 | |
79 | $result = $pageSet->getInvalidTitlesAndRevisions(); |
80 | $userName = $authority->getUser()->getName(); |
81 | $now = wfTimestampNow(); |
82 | |
83 | foreach ( $pageSet->getGoodPages() as $pageIdentity ) { |
84 | $title = $this->titleFormatter->getPrefixedText( $pageIdentity ); |
85 | $r = [ |
86 | 'ns' => $pageIdentity->getNamespace(), |
87 | 'title' => $title, |
88 | ]; |
89 | $page = $this->wikiPageFactory->newFromTitle( $pageIdentity ); |
90 | |
91 | $authStatus = PermissionStatus::newEmpty(); |
92 | if ( $authority->authorizeAction( 'purge', $authStatus ) ) { |
93 | // Directly purge and skip the UI part of purge() |
94 | $page->doPurge(); |
95 | $r['purged'] = true; |
96 | } else { |
97 | if ( $authStatus->isRateLimitExceeded() ) { |
98 | $this->addWarning( 'apierror-ratelimited' ); |
99 | } else { |
100 | $this->addWarning( Status::wrap( $authStatus )->getMessage() ); |
101 | } |
102 | } |
103 | |
104 | if ( $forceLinkUpdate || $forceRecursiveLinkUpdate ) { |
105 | if ( $authority->authorizeAction( 'linkpurge', $authStatus ) ) { |
106 | # Logging to better see expensive usage patterns |
107 | if ( $forceRecursiveLinkUpdate ) { |
108 | LoggerFactory::getInstance( 'RecursiveLinkPurge' )->info( |
109 | "Recursive link purge enqueued for {title}", |
110 | [ |
111 | 'user' => $userName, |
112 | 'title' => $title |
113 | ] |
114 | ); |
115 | } |
116 | |
117 | $page->updateParserCache( [ |
118 | 'causeAction' => 'api-purge', |
119 | 'causeAgent' => $userName, |
120 | ] ); |
121 | $page->doSecondaryDataUpdates( [ |
122 | 'recursive' => $forceRecursiveLinkUpdate, |
123 | 'causeAction' => 'api-purge', |
124 | 'causeAgent' => $userName, |
125 | 'defer' => DeferredUpdates::PRESEND, |
126 | 'freshness' => $now, |
127 | ] ); |
128 | $r['linkupdate'] = true; |
129 | } else { |
130 | if ( $authStatus->isRateLimitExceeded() ) { |
131 | $this->addWarning( 'apierror-ratelimited' ); |
132 | $forceLinkUpdate = false; |
133 | $forceRecursiveLinkUpdate = false; |
134 | } else { |
135 | $this->addWarning( Status::wrap( $authStatus )->getMessage() ); |
136 | } |
137 | } |
138 | } |
139 | |
140 | $result[] = $r; |
141 | } |
142 | $apiResult = $this->getResult(); |
143 | ApiResult::setIndexedTagName( $result, 'page' ); |
144 | $apiResult->addValue( null, $this->getModuleName(), $result ); |
145 | |
146 | $values = $pageSet->getNormalizedTitlesAsResult( $apiResult ); |
147 | if ( $values ) { |
148 | $apiResult->addValue( null, 'normalized', $values ); |
149 | } |
150 | $values = $pageSet->getConvertedTitlesAsResult( $apiResult ); |
151 | if ( $values ) { |
152 | $apiResult->addValue( null, 'converted', $values ); |
153 | } |
154 | $values = $pageSet->getRedirectTitlesAsResult( $apiResult ); |
155 | if ( $values ) { |
156 | $apiResult->addValue( null, 'redirects', $values ); |
157 | } |
158 | |
159 | $this->setContinuationManager( null ); |
160 | $continuationManager->setContinuationIntoResult( $apiResult ); |
161 | } |
162 | |
163 | /** |
164 | * Get a cached instance of an ApiPageSet object |
165 | * @return ApiPageSet |
166 | */ |
167 | private function getPageSet() { |
168 | $this->mPageSet ??= new ApiPageSet( $this ); |
169 | |
170 | return $this->mPageSet; |
171 | } |
172 | |
173 | public function isWriteMode() { |
174 | return true; |
175 | } |
176 | |
177 | public function mustBePosted() { |
178 | return true; |
179 | } |
180 | |
181 | public function getAllowedParams( $flags = 0 ) { |
182 | $result = [ |
183 | 'forcelinkupdate' => false, |
184 | 'forcerecursivelinkupdate' => false, |
185 | 'continue' => [ |
186 | ApiBase::PARAM_HELP_MSG => 'api-help-param-continue', |
187 | ], |
188 | ]; |
189 | if ( $flags ) { |
190 | $result += $this->getPageSet()->getFinalParams( $flags ); |
191 | } |
192 | |
193 | return $result; |
194 | } |
195 | |
196 | protected function getExamplesMessages() { |
197 | $title = Title::newMainPage()->getPrefixedText(); |
198 | $mp = rawurlencode( $title ); |
199 | |
200 | return [ |
201 | "action=purge&titles={$mp}|API" |
202 | => 'apihelp-purge-example-simple', |
203 | 'action=purge&generator=allpages&gapnamespace=0&gaplimit=10' |
204 | => 'apihelp-purge-example-generator', |
205 | ]; |
206 | } |
207 | |
208 | public function getHelpUrls() { |
209 | return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Purge'; |
210 | } |
211 | } |