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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\Extension\Notifications; |
| 4 | |
| 5 | use MediaWiki\Title\Title; |
| 6 | use MediaWiki\User\User; |
| 7 | |
| 8 | class SummaryParser { |
| 9 | /** @var callable */ |
| 10 | private $userLookup; |
| 11 | |
| 12 | /** |
| 13 | * @param callable|null $userLookup Function that receives User object and returns its id |
| 14 | * or 0 if the user doesn't exist. Passing null to this parameter will result in default |
| 15 | * implementation being used. |
| 16 | */ |
| 17 | public function __construct( callable $userLookup = null ) { |
| 18 | $this->userLookup = $userLookup; |
| 19 | if ( !$this->userLookup ) { |
| 20 | $this->userLookup = static function ( User $user ) { |
| 21 | return $user->getId(); |
| 22 | }; |
| 23 | } |
| 24 | } |
| 25 | |
| 26 | /** |
| 27 | * Returns a list of registered users linked in an edit summary |
| 28 | * |
| 29 | * @param string $summary |
| 30 | * @return User[] Array of username => User object |
| 31 | */ |
| 32 | public function parse( $summary ) { |
| 33 | // Remove section autocomments. Replace with characters that can't be in titles, |
| 34 | // to prevent fun stuff like "[[foo /* section */ bar]]". |
| 35 | $summary = preg_replace( '#/\*.*?\*/#', ' [] ', $summary ); |
| 36 | |
| 37 | $users = []; |
| 38 | $regex = '/\[\[([' . Title::legalChars() . ']++)(?:\|.*?)?\]\]/'; |
| 39 | if ( preg_match_all( $regex, $summary, $matches ) ) { |
| 40 | foreach ( $matches[1] as $match ) { |
| 41 | if ( $match[0] === ':' ) { |
| 42 | continue; |
| 43 | } |
| 44 | |
| 45 | $title = Title::newFromText( $match ); |
| 46 | if ( $title |
| 47 | && $title->isLocal() |
| 48 | && $title->getNamespace() === NS_USER |
| 49 | ) { |
| 50 | $user = User::newFromName( $title->getText() ); |
| 51 | $lookup = $this->userLookup; |
| 52 | if ( $user && $lookup( $user ) > 0 ) { |
| 53 | $users[$user->getName()] = $user; |
| 54 | } |
| 55 | } |
| 56 | } |
| 57 | } |
| 58 | |
| 59 | return $users; |
| 60 | } |
| 61 | } |