1<?php 2/** 3 * Elasticsearch PHP client 4 * 5 * @link https://github.com/elastic/elasticsearch-php/ 6 * @copyright Copyright (c) Elasticsearch B.V (https://www.elastic.co) 7 * @license http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0 8 * @license https://www.gnu.org/licenses/lgpl-2.1.html GNU Lesser General Public License, Version 2.1 9 * 10 * Licensed to Elasticsearch B.V under one or more agreements. 11 * Elasticsearch B.V licenses this file to you under the Apache 2.0 License or 12 * the GNU Lesser General Public License, Version 2.1, at your option. 13 * See the LICENSE file in the project root for more information. 14 */ 15 16 17declare(strict_types = 1); 18 19namespace Elasticsearch\Serializers; 20 21use Elasticsearch\Common\Exceptions; 22use Elasticsearch\Common\Exceptions\Serializer\JsonErrorException; 23 24if (!defined('JSON_INVALID_UTF8_SUBSTITUTE')) { 25 //PHP < 7.2 Define it as 0 so it does nothing 26 define('JSON_INVALID_UTF8_SUBSTITUTE', 0); 27} 28 29class SmartSerializer implements SerializerInterface 30{ 31 /** 32 * {@inheritdoc} 33 */ 34 public function serialize($data): string 35 { 36 if (is_string($data) === true) { 37 return $data; 38 } else { 39 $data = json_encode($data, JSON_PRESERVE_ZERO_FRACTION + JSON_INVALID_UTF8_SUBSTITUTE); 40 if ($data === false) { 41 throw new Exceptions\RuntimeException("Failed to JSON encode: ".json_last_error_msg()); 42 } 43 if ($data === '[]') { 44 return '{}'; 45 } else { 46 return $data; 47 } 48 } 49 } 50 51 /** 52 * {@inheritdoc} 53 */ 54 public function deserialize(?string $data, array $headers) 55 { 56 if (isset($headers['content_type']) === true) { 57 if (strpos($headers['content_type'], 'json') !== false) { 58 return $this->decode($data); 59 } else { 60 //Not json, return as string 61 return $data; 62 } 63 } else { 64 //No content headers, assume json 65 return $this->decode($data); 66 } 67 } 68 69 /** 70 * @todo For 2.0, remove the E_NOTICE check before raising the exception. 71 * 72 * @param string|null $data 73 * 74 * @return array 75 * @throws JsonErrorException 76 */ 77 private function decode(?string $data): array 78 { 79 if ($data === null || strlen($data) === 0) { 80 return []; 81 } 82 83 if (version_compare(PHP_VERSION, '7.3.0') >= 0) { 84 try { 85 $result = json_decode($data, true, 512, JSON_THROW_ON_ERROR); 86 return $result; 87 } catch (\JsonException $e) { 88 $result = $result ?? []; 89 throw new JsonErrorException($e->getCode(), $data, $result); 90 } 91 } 92 93 $result = @json_decode($data, true); 94 // Throw exception only if E_NOTICE is on to maintain backwards-compatibility on systems that silently ignore E_NOTICEs. 95 if (json_last_error() !== JSON_ERROR_NONE && (error_reporting() & E_NOTICE) === E_NOTICE) { 96 throw new JsonErrorException(json_last_error(), $data, $result); 97 } 98 return $result; 99 } 100} 101