diff options
Diffstat (limited to 'srcs/wordpress/wp-includes/class-wp-http-encoding.php')
| -rw-r--r-- | srcs/wordpress/wp-includes/class-wp-http-encoding.php | 232 |
1 files changed, 0 insertions, 232 deletions
diff --git a/srcs/wordpress/wp-includes/class-wp-http-encoding.php b/srcs/wordpress/wp-includes/class-wp-http-encoding.php deleted file mode 100644 index cac6734..0000000 --- a/srcs/wordpress/wp-includes/class-wp-http-encoding.php +++ /dev/null @@ -1,232 +0,0 @@ -<?php -/** - * HTTP API: WP_Http_Encoding class - * - * @package WordPress - * @subpackage HTTP - * @since 4.4.0 - */ - -/** - * Core class used to implement deflate and gzip transfer encoding support for HTTP requests. - * - * Includes RFC 1950, RFC 1951, and RFC 1952. - * - * @since 2.8.0 - */ -class WP_Http_Encoding { - - /** - * Compress raw string using the deflate format. - * - * Supports the RFC 1951 standard. - * - * @since 2.8.0 - * - * @param string $raw String to compress. - * @param int $level Optional, default is 9. Compression level, 9 is highest. - * @param string $supports Optional, not used. When implemented it will choose the right compression based on what the server supports. - * @return string|false False on failure. - */ - public static function compress( $raw, $level = 9, $supports = null ) { - return gzdeflate( $raw, $level ); - } - - /** - * Decompression of deflated string. - * - * Will attempt to decompress using the RFC 1950 standard, and if that fails - * then the RFC 1951 standard deflate will be attempted. Finally, the RFC - * 1952 standard gzip decode will be attempted. If all fail, then the - * original compressed string will be returned. - * - * @since 2.8.0 - * - * @param string $compressed String to decompress. - * @param int $length The optional length of the compressed data. - * @return string|bool False on failure. - */ - public static function decompress( $compressed, $length = null ) { - - if ( empty( $compressed ) ) { - return $compressed; - } - - $decompressed = @gzinflate( $compressed ); - if ( false !== $decompressed ) { - return $decompressed; - } - - $decompressed = self::compatible_gzinflate( $compressed ); - if ( false !== $decompressed ) { - return $decompressed; - } - - $decompressed = @gzuncompress( $compressed ); - if ( false !== $decompressed ) { - return $decompressed; - } - - if ( function_exists( 'gzdecode' ) ) { - $decompressed = @gzdecode( $compressed ); - - if ( false !== $decompressed ) { - return $decompressed; - } - } - - return $compressed; - } - - /** - * Decompression of deflated string while staying compatible with the majority of servers. - * - * Certain Servers will return deflated data with headers which PHP's gzinflate() - * function cannot handle out of the box. The following function has been created from - * various snippets on the gzinflate() PHP documentation. - * - * Warning: Magic numbers within. Due to the potential different formats that the compressed - * data may be returned in, some "magic offsets" are needed to ensure proper decompression - * takes place. For a simple progmatic way to determine the magic offset in use, see: - * https://core.trac.wordpress.org/ticket/18273 - * - * @since 2.8.1 - * @link https://core.trac.wordpress.org/ticket/18273 - * @link https://secure.php.net/manual/en/function.gzinflate.php#70875 - * @link https://secure.php.net/manual/en/function.gzinflate.php#77336 - * - * @param string $gzData String to decompress. - * @return string|bool False on failure. - */ - public static function compatible_gzinflate( $gzData ) { - - // Compressed data might contain a full header, if so strip it for gzinflate(). - if ( substr( $gzData, 0, 3 ) == "\x1f\x8b\x08" ) { - $i = 10; - $flg = ord( substr( $gzData, 3, 1 ) ); - if ( $flg > 0 ) { - if ( $flg & 4 ) { - list($xlen) = unpack( 'v', substr( $gzData, $i, 2 ) ); - $i = $i + 2 + $xlen; - } - if ( $flg & 8 ) { - $i = strpos( $gzData, "\0", $i ) + 1; - } - if ( $flg & 16 ) { - $i = strpos( $gzData, "\0", $i ) + 1; - } - if ( $flg & 2 ) { - $i = $i + 2; - } - } - $decompressed = @gzinflate( substr( $gzData, $i, -8 ) ); - if ( false !== $decompressed ) { - return $decompressed; - } - } - - // Compressed data from java.util.zip.Deflater amongst others. - $decompressed = @gzinflate( substr( $gzData, 2 ) ); - if ( false !== $decompressed ) { - return $decompressed; - } - - return false; - } - - /** - * What encoding types 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 array $type Encoding types allowed. Accepts 'gzinflate', - * 'gzuncompress', 'gzdecode'. - * @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' ) ); - } -} |