96 lines
2.3 KiB
PHP
96 lines
2.3 KiB
PHP
<?php
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/**
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* An implementation of Automattic\Jetpack\Sync\Codec_Interface that uses gzip's DEFLATE
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* algorithm to compress objects serialized using json_encode.
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*
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* @package automattic/jetpack-sync
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*/
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namespace Automattic\Jetpack\Sync;
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/**
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* An implementation of Automattic\Jetpack\Sync\Codec_Interface that uses gzip's DEFLATE
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* algorithm to compress objects serialized using json_encode
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*/
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class JSON_Deflate_Array_Codec implements Codec_Interface {
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const CODEC_NAME = 'deflate-json-array';
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/**
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* Return the name of the codec.
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*
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* @return string
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*/
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public function name() {
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return self::CODEC_NAME;
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}
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/**
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* Encodes an object.
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*
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* @param object $object Item to encode.
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* @return string
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*/
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public function encode( $object ) {
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return base64_encode( gzdeflate( $this->json_serialize( $object ) ) ); // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_encode
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}
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/**
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* Decode compressed serialized value.
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*
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* @param string $input Item to decode.
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* @return array|mixed|object
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*/
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public function decode( $input ) {
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$decoded = base64_decode( $input ); // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_decode
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$inflated = @gzinflate( $decoded ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
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return is_string( $inflated ) ? $this->json_unserialize( $inflated ) : null;
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}
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/**
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* Serialize JSON
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*
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* @see https://gist.github.com/muhqu/820694
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*
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* @param mixed $any Value to serialize and wrap.
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*
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* @return false|string
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*/
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protected function json_serialize( $any ) {
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return wp_json_encode( Functions::json_wrap( $any ) );
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}
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/**
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* Unserialize JSON
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*
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* @param string $str JSON string.
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* @return array|object Unwrapped JSON.
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*/
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protected function json_unserialize( $str ) {
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return $this->json_unwrap( json_decode( $str, true ) );
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}
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/**
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* Unwraps a json_decode return.
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*
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* @param array|object $any json_decode object.
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* @return array|object
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*/
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private function json_unwrap( $any ) {
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if ( is_array( $any ) ) {
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foreach ( $any as $k => $v ) {
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if ( '__o' === $k ) {
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continue;
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}
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$any[ $k ] = $this->json_unwrap( $v );
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}
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if ( isset( $any['__o'] ) ) {
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unset( $any['__o'] );
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$any = (object) $any;
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}
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}
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return $any;
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}
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}
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