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lU ` u plU 2lU `DlU lU ` p ( p lU ` p 8 p PlU ` 6 ylU ` P @ H R>lU ` @ ` 7PlU ` 0 ` 7GlU ` P 8 lU P P t 4lU ` B lU < nlU P 2 lU < `FlU p-lU `lU @ + JlU > 0[lU p M `lU P N`DlU p-lU P `lU @ + lU * `lU p
` =
lU P P u
lU ` u plU `FlU P lU p xlU P {lU p 0 QlU 0 @ `lU @ @ + lU * lU ` h p lU ` x p PlU p 6 ylU ` P R>lU p P p 70DlU p ` 8`lU p = NlU p P A `lU ` = NlU P P A {lU p QAlU lU ` A NlU
p A plU flU ` u plU lU ` 0lU P
lU P t `lU p
= pelU G lU P A s to accept and their priority values.
*
* @since 2.8.0
*
* @param string $url
* @param array $args
* @return string Types of encoding to accept.
*/
public static function accept_encoding( $url, $args ) {
$type = array();
$compression_enabled = self::is_available();
if ( ! $args['decompress'] ) { // Decompression specifically disabled.
$compression_enabled = false;
} elseif ( $args['stream'] ) { // Disable when streaming to file.
$compression_enabled = false;
} elseif ( isset( $args['limit_response_size'] ) ) { // If only partial content is being requested, we won't be able to decompress it.
$compression_enabled = false;
}
if ( $compression_enabled ) {
if ( function_exists( 'gzinflate' ) ) {
$type[] = 'deflate;q=1.0';
}
if ( function_exists( 'gzuncompress' ) ) {
$type[] = 'compress;q=0.5';
}
if ( function_exists( 'gzdecode' ) ) {
$type[] = 'gzip;q=0.5';
}
}
/**
* Filters the allowed encoding types.
*
* @since 3.6.0
*
* @param string[] $type Array of what encoding types to accept and their priority values.
* @param string $url URL of the HTTP request.
* @param array $args HTTP request arguments.
*/
$type = apply_filters( 'wp_http_accept_encoding', $type, $url, $args );
return implode( ', ', $type );
}
/**
* What encoding the content used when it was compressed to send in the headers.
*
* @since 2.8.0
*
* @return string Content-Encoding string to send in the header.
*/
public static function content_encoding() {
return 'deflate';
}
/**
* Whether the content be decoded based on the headers.
*
* @since 2.8.0
*
* @param array|string $headers All of the available headers.
* @return bool
*/
public static function should_decode( $headers ) {
if ( is_array( $headers ) ) {
if ( array_key_exists( 'content-encoding', $headers ) && ! empty( $headers['content-encoding'] ) ) {
return true;
}
} elseif ( is_string( $headers ) ) {
return ( stripos( $headers, 'content-encoding:' ) !== false );
}
return false;
}
/**
* Whether decompression and compression are supported by the PHP version.
*
* Each function is tested instead of checking for the zlib extension, to
* ensure that the functions all exist in the PHP version and aren't
* disabled.
*
* @since 2.8.0
*
* @return bool
*/
public static function is_available() {
return ( function_exists( 'gzuncompress' ) || function_exists( 'gzdeflate' ) || function_exists( 'gzinflate' ) );
}
}
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