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<?php
class ICanLocalizeQuery {

	private $site_id;
	private $access_key;
	private $error = null;
	private $sitepress;
	private $wpml_icl_client;

	function __construct( $site_id = null, $access_key = null, SitePress $sitepress = null, $wpml_icl_client = null ) {
		$this->site_id    = $site_id;
		$this->access_key = $access_key;
		if ( null === $sitepress ) {
			global $sitepress;
		}
		$this->sitepress = $sitepress;
		if ( null === $wpml_icl_client ) {
			$wpml_icl_client = new WPML_ICL_Client( new WP_Http(), new WPML_WP_API() );
		}
		$this->wpml_icl_client = $wpml_icl_client;
	}

	public function setting( $setting ) {
		return $this->$setting;
	}

	public function error() {
		return $this->error;
	}

	function updateAccount( $data ) {
		$request = ICL_API_ENDPOINT . '/websites/' . $data['site_id'] . '/update_by_cms.xml';
		unset( $data['site_id'] );
		$response = $this->request( $request, 'POST', $data );
		if ( ! $response ) {
			return $this->error;
		} else {
			return 0;
		}
	}

	/**
	 * @param bool $force
	 *
	 * @return array of website details returned from a direct API call to ICL
	 */
	function get_website_details( $force = false ) {
		$res = $this->sitepress->get_wp_api()->get_transient( WEBSITE_DETAILS_TRANSIENT_KEY );

		if ( ! $res || $force ) {
			$website_details_cache_index = '_last_valid_icl_website_details';
			$request_url                 = ICL_API_ENDPOINT . '/websites/' . $this->site_id . '.xml?accesskey=' . $this->access_key;
			$res                         = $this->request( $request_url );
			if ( isset( $res['info']['website'] ) ) {
				$res = $res['info']['website'];
				$this->sitepress->set_setting( $website_details_cache_index, $res, true );
			} else {
				$res = $this->sitepress->get_setting( $website_details_cache_index, array() );
			}
			$this->sitepress->get_wp_api()->set_transient( WEBSITE_DETAILS_TRANSIENT_KEY, $res, DAY_IN_SECONDS );
		}
		return $res;
	}

	private function request( $request, $method = 'GET', $formvars = null ) {
		$this->wpml_icl_client->set_method( $method );
		$this->wpml_icl_client->set_post_data( $formvars );

		return $this->wpml_icl_client->request( $request );
	}

}

/**
 * gzdecode implementation
 *
 * @see http://hu.php.net/manual/en/function.gzencode.php#44470
 *
 * @param string $data
 * @param string $filename
 * @param string $error
 * @param int    $maxlength
 * @return string
 */
function icl_gzdecode( $data, &$filename = '', &$error = '', $maxlength = null ) {
	$len = strlen( $data );
	if ( $len < 18 || strcmp( substr( $data, 0, 2 ), "\x1f\x8b" ) ) {
		$error = 'Not in GZIP format.';
		return null; // Not GZIP format (See RFC 1952)
	}
	$method = ord( substr( $data, 2, 1 ) ); // Compression method
	$flags  = ord( substr( $data, 3, 1 ) ); // Flags
	if ( $flags & 31 != $flags ) {
		$error = 'Reserved bits not allowed.';
		return null;
	}
	$headerlen = 10;
	if ( $flags & 4 ) {
		// 2-byte length prefixed EXTRA data in header
		if ( $len - $headerlen - 2 < 8 ) {
			return false; // invalid
		}
		$extralen = unpack( 'v', substr( $data, 8, 2 ) );
		$extralen = $extralen [1];
		if ( $len - $headerlen - 2 - $extralen < 8 ) {
			return false; // invalid
		}
		$headerlen += 2 + $extralen;
	}
	$filename = '';
	if ( $flags & 8 ) {
		// C-style string
		if ( $len - $headerlen - 1 < 8 ) {
			return false; // invalid
		}
		$filenamelen = strpos( substr( $data, $headerlen ), chr( 0 ) );
		if ( $filenamelen === false || $len - $headerlen - $filenamelen - 1 < 8 ) {
			return false; // invalid
		}
		$filename   = substr( $data, $headerlen, $filenamelen );
		$headerlen += $filenamelen + 1;
	}
	if ( $flags & 16 ) {
		// C-style string COMMENT data in header
		if ( $len - $headerlen - 1 < 8 ) {
			return false; // invalid
		}
		$commentlen = strpos( substr( $data, $headerlen ), chr( 0 ) );
		if ( $commentlen === false || $len - $headerlen - $commentlen - 1 < 8 ) {
			return false; // Invalid header format
		}
		$headerlen += $commentlen + 1;
	}
	if ( $flags & 2 ) {
		// 2-bytes (lowest order) of CRC32 on header present
		if ( $len - $headerlen - 2 < 8 ) {
			return false; // invalid
		}
		$calccrc   = crc32( substr( $data, 0, $headerlen ) ) & 0xffff;
		$headercrc = unpack( 'v', substr( $data, $headerlen, 2 ) );
		$headercrc = $headercrc [1];
		if ( $headercrc != $calccrc ) {
			$error = 'Header checksum failed.';
			return false; // Bad header CRC
		}
		$headerlen += 2;
	}
	// GZIP FOOTER
	$datacrc = unpack( 'V', substr( $data, - 8, 4 ) );
	$datacrc = sprintf( '%u', $datacrc [1] & 0xFFFFFFFF );
	$isize   = unpack( 'V', substr( $data, - 4 ) );
	$isize   = $isize [1];
	// decompression:
	$bodylen = $len - $headerlen - 8;
	if ( $bodylen < 1 ) {
		// IMPLEMENTATION BUG!
		return null;
	}
	$body = substr( $data, $headerlen, $bodylen );
	$data = '';
	if ( $bodylen > 0 ) {
		switch ( $method ) {
			case 8:
				// Currently the only supported compression method:
				$data = gzinflate( $body, $maxlength );
				break;
			default:
				$error = 'Unknown compression method.';
				return false;
		}
	} // zero-byte body content is allowed

	if ( ! is_string( $data ) ) {
		return false;
	}
	// Verifiy CRC32
	$crc   = sprintf( '%u', crc32( $data ) );
	$crcOK = $crc == $datacrc;
	$lenOK = $isize == strlen( $data );
	if ( ! $lenOK || ! $crcOK ) {
		$error = ( $lenOK ? '' : 'Length check FAILED. ' ) . ( $crcOK ? '' : 'Checksum FAILED.' );
		return false;
	}
	return $data;
}