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| 1 | <?php |
| 2 | declare( strict_types = 1 ); |
| 3 | |
| 4 | namespace MediaWiki\MassMessage; |
| 5 | |
| 6 | use ApiMain; |
| 7 | use ApiMessage; |
| 8 | use ApiResult; |
| 9 | use ApiUsageException; |
| 10 | use ChangeTags; |
| 11 | use FormatJson; |
| 12 | use MediaWiki\Deferred\DeferredUpdates; |
| 13 | use MediaWiki\MediaWikiServices; |
| 14 | use MediaWiki\Permissions\PermissionManager; |
| 15 | use MediaWiki\Request\DerivativeRequest; |
| 16 | use MediaWiki\Title\Title; |
| 17 | use MediaWiki\User\User; |
| 18 | use RequestContext; |
| 19 | use Wikimedia\ScopedCallback; |
| 20 | |
| 21 | /** |
| 22 | * Post messages on target pages |
| 23 | * @author Abijeet Patro |
| 24 | * @since 2022.08 |
| 25 | * @license GPL-2.0-or-later |
| 26 | */ |
| 27 | class MessageSender { |
| 28 | /** @var PermissionManager */ |
| 29 | private $permissionManager; |
| 30 | /** @var callable|null */ |
| 31 | private $failureCallback; |
| 32 | |
| 33 | /** |
| 34 | * @param PermissionManager $permissionManager |
| 35 | * @param callable|null $failureCallback |
| 36 | */ |
| 37 | public function __construct( |
| 38 | PermissionManager $permissionManager, |
| 39 | ?callable $failureCallback |
| 40 | ) { |
| 41 | $this->permissionManager = $permissionManager; |
| 42 | $this->failureCallback = $failureCallback; |
| 43 | } |
| 44 | |
| 45 | /** |
| 46 | * @param Title $target |
| 47 | * @param string $message |
| 48 | * @param string $subject |
| 49 | * @param User $user |
| 50 | * @param string $dedupeHash |
| 51 | * @return bool |
| 52 | */ |
| 53 | public function editPage( |
| 54 | Title $target, |
| 55 | string $message, |
| 56 | string $subject, |
| 57 | User $user, |
| 58 | string $dedupeHash |
| 59 | ): bool { |
| 60 | $params = [ |
| 61 | 'action' => 'edit', |
| 62 | 'title' => $target->getPrefixedText(), |
| 63 | 'section' => 'new', |
| 64 | 'summary' => $subject, |
| 65 | 'text' => $message, |
| 66 | 'notminor' => true, |
| 67 | 'token' => $user->getEditToken() |
| 68 | ]; |
| 69 | |
| 70 | if ( $target->inNamespace( NS_USER_TALK ) ) { |
| 71 | $params['bot'] = true; |
| 72 | } |
| 73 | |
| 74 | $result = $this->makeAPIRequest( $params, $user ); |
| 75 | if ( $result ) { |
| 76 | // Apply change tag if the edit succeeded |
| 77 | $resultData = $result->getResultData(); |
| 78 | if ( !isset( $resultData['edit']['result'] ) |
| 79 | || $resultData['edit']['result'] !== 'Success' |
| 80 | ) { |
| 81 | // job should retry the edit |
| 82 | return false; |
| 83 | } |
| 84 | if ( !isset( $resultData['edit']['nochange'] ) |
| 85 | && $resultData['edit']['newrevid'] |
| 86 | ) { |
| 87 | $revId = $resultData['edit']['newrevid']; |
| 88 | DeferredUpdates::addCallableUpdate( static function () use ( $revId, $dedupeHash ) { |
| 89 | ChangeTags::addTags( |
| 90 | 'massmessage-delivery', |
| 91 | null, |
| 92 | $revId, |
| 93 | null, |
| 94 | FormatJson::encode( [ 'dedupe_hash' => $dedupeHash ] ), |
| 95 | ); |
| 96 | } ); |
| 97 | } |
| 98 | return true; |
| 99 | } |
| 100 | return false; |
| 101 | } |
| 102 | |
| 103 | /** |
| 104 | * @param Title $target |
| 105 | * @param string $message |
| 106 | * @param string $subject |
| 107 | * @param User $user |
| 108 | * @return bool |
| 109 | */ |
| 110 | public function addLQTThread( |
| 111 | Title $target, |
| 112 | string $message, |
| 113 | string $subject, |
| 114 | User $user |
| 115 | ): bool { |
| 116 | $params = [ |
| 117 | 'action' => 'threadaction', |
| 118 | 'threadaction' => 'newthread', |
| 119 | 'talkpage' => $target, |
| 120 | 'subject' => $subject, |
| 121 | 'text' => $message, |
| 122 | 'token' => $user->getEditToken() |
| 123 | // LQT will automatically mark the edit as bot if we're a bot, so don't set here |
| 124 | ]; |
| 125 | |
| 126 | return (bool)$this->makeAPIRequest( $params, $user ); |
| 127 | } |
| 128 | |
| 129 | /** |
| 130 | * @param Title $target |
| 131 | * @param string $message |
| 132 | * @param string $subject |
| 133 | * @param User $user |
| 134 | * @return bool |
| 135 | */ |
| 136 | public function addFlowTopic( |
| 137 | Title $target, |
| 138 | string $message, |
| 139 | string $subject, |
| 140 | User $user |
| 141 | ): bool { |
| 142 | $params = [ |
| 143 | 'action' => 'flow', |
| 144 | 'page' => $target->getPrefixedText(), |
| 145 | 'submodule' => 'new-topic', |
| 146 | 'nttopic' => $subject, |
| 147 | 'ntcontent' => $message, |
| 148 | 'token' => $user->getEditToken(), |
| 149 | ]; |
| 150 | |
| 151 | return (bool)$this->makeAPIRequest( $params, $user ); |
| 152 | } |
| 153 | |
| 154 | /** |
| 155 | * Construct and make an API request based on the given params and return the results. |
| 156 | * |
| 157 | * @param array $params |
| 158 | * @param User $ourUser |
| 159 | * @return ?ApiResult |
| 160 | */ |
| 161 | private function makeAPIRequest( array $params, User $ourUser ): ?ApiResult { |
| 162 | // phpcs:ignore MediaWiki.Usage.DeprecatedGlobalVariables.Deprecated$wgUser |
| 163 | global $wgUser, $wgRequest; |
| 164 | |
| 165 | // Add our hook functions to make the MassMessage user IP block-exempt and email confirmed. |
| 166 | // Done here so that it's not unnecessarily called on every page load. |
| 167 | $lock = $this->permissionManager->addTemporaryUserRights( $ourUser, [ 'ipblock-exempt' ] ); |
| 168 | $hookScope = MediaWikiServices::getInstance()->getHookContainer()->scopedRegister( |
| 169 | 'EmailConfirmed', |
| 170 | [ MassMessageHooks::class, 'onEmailConfirmed' ] |
| 171 | ); |
| 172 | |
| 173 | $oldRequest = $wgRequest; |
| 174 | $oldUser = $wgUser; |
| 175 | |
| 176 | $wgRequest = new DerivativeRequest( |
| 177 | $wgRequest, |
| 178 | $params, |
| 179 | // was posted? |
| 180 | true |
| 181 | ); |
| 182 | // New user objects will use $wgRequest, so we set that |
| 183 | // to our DerivativeRequest, so we don't run into any issues. |
| 184 | $wgUser = $ourUser; |
| 185 | $context = RequestContext::getMain(); |
| 186 | // All further internal API requests will use the main |
| 187 | // RequestContext, so setting it here will fix it for |
| 188 | // all other internal uses, like how LQT does |
| 189 | $oldCUser = $context->getUser(); |
| 190 | $oldCRequest = $context->getRequest(); |
| 191 | $context->setUser( $ourUser ); |
| 192 | $context->setRequest( $wgRequest ); |
| 193 | |
| 194 | $api = new ApiMain( |
| 195 | $wgRequest, |
| 196 | // enable write? |
| 197 | true |
| 198 | ); |
| 199 | try { |
| 200 | $attemptCount = 0; |
| 201 | while ( true ) { |
| 202 | try { |
| 203 | $api->execute(); |
| 204 | // Continue after the while block if the API request succeeds |
| 205 | break; |
| 206 | } catch ( ApiUsageException $e ) { |
| 207 | $attemptCount++; |
| 208 | $isEditConflict = false; |
| 209 | foreach ( $e->getStatusValue()->getErrors() as $error ) { |
| 210 | if ( ApiMessage::create( $error )->getApiCode() === 'editconflict' ) { |
| 211 | $isEditConflict = true; |
| 212 | break; |
| 213 | } |
| 214 | } |
| 215 | // If the failure is not caused by an edit conflict or if there |
| 216 | // have been too many failures, log the (first) error and continue |
| 217 | // execution. Otherwise retry the request. |
| 218 | if ( !$isEditConflict || $attemptCount >= 5 ) { |
| 219 | foreach ( $e->getStatusValue()->getErrors() as $error ) { |
| 220 | if ( $this->failureCallback ) { |
| 221 | call_user_func( $this->failureCallback, ApiMessage::create( $error )->getApiCode() ); |
| 222 | } |
| 223 | break; |
| 224 | } |
| 225 | return null; |
| 226 | } |
| 227 | } |
| 228 | } |
| 229 | return $api->getResult(); |
| 230 | } finally { |
| 231 | // Cleanup all the stuff we polluted |
| 232 | ScopedCallback::consume( $hookScope ); |
| 233 | $context->setUser( $oldCUser ); |
| 234 | $context->setRequest( $oldCRequest ); |
| 235 | $wgUser = $oldUser; |
| 236 | $wgRequest = $oldRequest; |
| 237 | } |
| 238 | } |
| 239 | } |