ExtensionInfo.php

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<?php
 
namespace MediaWiki;
 
class ExtensionInfo {
 
    public static function getAuthorsFileName( $dir ) {
        if ( !$dir ) {
            return false;
        }
 
        foreach ( scandir( $dir ) as $file ) {
            $fullPath = $dir . DIRECTORY_SEPARATOR . $file;
            if ( preg_match( '/^(AUTHORS|CREDITS)(\.txt|\.wiki|\.mediawiki)?$/', $file ) &&
                is_readable( $fullPath ) &&
                is_file( $fullPath )
            ) {
                return $fullPath;
            }
        }
 
        return false;
    }
 
    public static function getLicenseFileNames( $extDir ) {
        if ( !$extDir ) {
            return [];
        }
 
        $licenseFiles = [];
        foreach ( scandir( $extDir ) as $file ) {
            $fullPath = $extDir . DIRECTORY_SEPARATOR . $file;
            // Allow files like GPL-COPYING and MIT-LICENSE
            if ( preg_match( '/^([\w\.-]+)?(COPYING|LICENSE)(\.txt)?$/', $file ) &&
                is_readable( $fullPath ) &&
                is_file( $fullPath )
            ) {
                $licenseFiles[] = $fullPath;
            }
        }
 
        return $licenseFiles;
    }
}