X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/b3ddbea8a296025a672b3c3ddca158dc51ed8080..88550bc3400cc7c035ff590ecb007c7938041ded:/wp-includes/compat.php

diff --git a/wp-includes/compat.php b/wp-includes/compat.php
index e84ba3c9..ab404525 100644
--- a/wp-includes/compat.php
+++ b/wp-includes/compat.php
@@ -60,3 +60,72 @@ function _hash_hmac($algo, $data, $key, $raw_output = false) {
 		return pack( $pack, $hmac );
 	return $hmac;
 }
+
+if ( !function_exists('json_encode') ) {
+	function json_encode( $string ) {
+		global $wp_json;
+
+		if ( !is_a($wp_json, 'Services_JSON') ) {
+			require_once( ABSPATH . WPINC . '/class-json.php' );
+			$wp_json = new Services_JSON();
+		}
+
+		return $wp_json->encodeUnsafe( $string );
+	}
+}
+
+if ( !function_exists('json_decode') ) {
+	function json_decode( $string, $assoc_array = false ) {
+		global $wp_json;
+
+		if ( !is_a($wp_json, 'Services_JSON') ) {
+			require_once( ABSPATH . WPINC . '/class-json.php' );
+			$wp_json = new Services_JSON();
+		}
+
+		$res = $wp_json->decode( $string );
+		if ( $assoc_array )
+			$res = _json_decode_object_helper( $res );
+		return $res;
+	}
+	function _json_decode_object_helper($data) {
+		if ( is_object($data) )
+			$data = get_object_vars($data);
+		return is_array($data) ? array_map(__FUNCTION__, $data) : $data;
+	}
+}
+
+if ( ! function_exists( 'hash_equals' ) ) :
+/**
+ * Compare two strings in constant time.
+ *
+ * This function was added in PHP 5.6.
+ * It can leak the length of a string.
+ *
+ * @since 3.9.2
+ *
+ * @param string $a Expected string.
+ * @param string $b Actual string.
+ * @return bool Whether strings are equal.
+ */
+function hash_equals( $a, $b ) {
+	$a_length = strlen( $a );
+	if ( $a_length !== strlen( $b ) ) {
+		return false;
+	}
+	$result = 0;
+
+	// Do not attempt to "optimize" this.
+	for ( $i = 0; $i < $a_length; $i++ ) {
+		$result |= ord( $a[ $i ] ) ^ ord( $b[ $i ] );
+	}
+
+	return $result === 0;
+}
+endif;
+
+// JSON_PRETTY_PRINT was introduced in PHP 5.4
+// Defined here to prevent a notice when using it with wp_json_encode()
+if ( ! defined( 'JSON_PRETTY_PRINT' ) ) {
+	define( 'JSON_PRETTY_PRINT', 128 );
+}