EasyDeflate.php

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<?php
class EasyDeflate {
 
    public static function isDeflated( $data ) {
        return substr( $data, 0, 11 ) === 'rawdeflate,';
    }
 
    public static function inflate( $data ) {
        if ( !self::isDeflated( $data ) ) {
            throw new InvalidArgumentException( 'Data does not begin with deflated prefix' );
        }
        $deflated = base64_decode( substr( $data, 11 ), true );
        if ( $deflated === false ) {
            return StatusValue::newFatal( 'easydeflate-invaliddeflate' );
        }
        Wikimedia\suppressWarnings();
        $inflated = gzinflate( $deflated );
        Wikimedia\restoreWarnings();
        if ( $inflated === false ) {
            return StatusValue::newFatal( 'easydeflate-invaliddeflate' );
        }
        return StatusValue::newGood( $inflated );
    }
}