| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | namespace Looxis\LaravelAmazonMWS; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | use GuzzleHttp\Client; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  | use Looxis\LaravelAmazonMWS\Exceptions\CountryIsMissingException; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | use Looxis\LaravelAmazonMWS\Exceptions\CountryNotAvailableException; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  | class MWSClient | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |     const SIGNATURE_METHOD = 'HmacSHA256'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |     const SIGNATURE_VERSION = '2'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |     const DATE_FORMAT = "Y-m-d\TH:i:s.\\0\\0\\0\\Z"; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |     const APPLICATION_NAME = 'Looxis/MwsClient'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |     const APPLICATION_VERSION = '0.0.1'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |     protected $accessKeyId; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |     protected $secretKey; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |     protected $sellerId; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |     protected $client; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |     protected $marketPlaces; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |     protected $marketplaceIds = [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |         'A2Q3Y263D00KWC' => 'mws.amazonservices.com', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |         'A2EUQ1WTGCTBG2' => 'mws.amazonservices.ca', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |         'A1AM78C64UM0Y8' => 'mws.amazonservices.com.mx', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |         'ATVPDKIKX0DER' => 'mws.amazonservices.com', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |         'A2VIGQ35RCS4UG' => 'mws.amazonservices.ae', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |         'A1PA6795UKMFR9' => 'mws-eu.amazonservices.com', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |         'ARBP9OOSHTCHU' => 'mws-eu.amazonservices.com', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |         'A1RKKUPIHCS9HS' => 'mws-eu.amazonservices.com', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |         'A13V1IB3VIYZZH' => 'mws-eu.amazonservices.com', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |         'A1F83G8C2ARO7P' => 'mws-eu.amazonservices.com', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |         'A21TJRUUN4KGV' => 'mws.amazonservices.in', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |         'APJ6JRA9NG5V4' => 'mws-eu.amazonservices.com', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |         'A17E79C6D8DWNP' => 'mws-eu.amazonservices.com', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |         'A33AVAJ2PDY3EV' => 'mws-eu.amazonservices.com', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |         'A19VAU5U5O7RUS' => 'mws-fe.amazonservices.com', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |         'A39IBJ37TRP1C6' => 'mws.amazonservices.com.au', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |         'A1VC38T7YXB528' => 'mws.amazonservices.jp', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |     ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |     protected $countries = [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |         'BR' => 'A2Q3Y263D00KWC', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |         'CA' => 'A2EUQ1WTGCTBG2', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |         'MX' => 'A1AM78C64UM0Y8', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |         'US' => 'ATVPDKIKX0DER', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |         'AE' => 'A2VIGQ35RCS4UG', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |         'DE' => 'A1PA6795UKMFR9', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |         'EG' => 'ARBP9OOSHTCHU', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |         'ES' => 'A1RKKUPIHCS9HS', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |         'FR' => 'A13V1IB3VIYZZH', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |         'GB' => 'A1F83G8C2ARO7P', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |         'IN' => 'A21TJRUUN4KGV', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |         'IT' => 'APJ6JRA9NG5V4', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |         'SA' => 'A17E79C6D8DWNP', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |         'TR' => 'A33AVAJ2PDY3EV', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |         'SG' => 'A19VAU5U5O7RUS', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |         'AU' => 'A39IBJ37TRP1C6', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |         'JP' => 'A1VC38T7YXB528', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |     ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |     public function __construct(Client $client = null) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |         $this->accessKeyId = config('amazon-mws.access_key_id'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |         $this->secretKey = config('amazon-mws.secret_key'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |         $this->sellerId = config('amazon-mws.seller_id'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |         $this->marketPlaces = ['DE']; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |         $this->client = $client ?: new Client(['timeout'  => 60]); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |     public function setMarketPlaces($countryCodes) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |         $countryCodes = is_array($countryCodes) ? $countryCodes : func_get_args(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |         $this->marketPlaces = $countryCodes; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |     public function getCurrentMarketPlaces() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  |         return $this->marketPlaces; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |     public function getTimeStamp() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |         return gmdate(self::DATE_FORMAT, time()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |     public function getAccessKeyId() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |         return $this->accessKeyId; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |     public function setAccessKeyId($key) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |         $this->accessKeyId = $key; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |         return $this; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |     public function getSellerId() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  |         return $this->sellerId; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  |     public function setSellerId($id) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  |         $this->sellerId = $id; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  |         return $this; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  |     public function getSignatureMethod() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  |         return self::SIGNATURE_METHOD; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  |     public function getSignatureVersion() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |         return self::SIGNATURE_VERSION; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  |     public function getDomain() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  |         $mainMarketPlace = $this->marketPlaces[0]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  |         if ($mainMarketPlace) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  |             $marketPlaceId = $this->countries[$mainMarketPlace]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  |             return $this->marketplaceIds[$marketPlaceId]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  |         throw new CountryIsMissingException(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 132 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 133 |  |  |     public function getCountry() | 
            
                                                                        
                            
            
                                    
            
            
                | 134 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 135 |  |  |         return $this->country; | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                        
                            
            
                                    
            
            
                | 136 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 |  |  |     public function setCountry($country) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  |         if (in_array($country, array_keys($this->countries))) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  |             $this->country = $country; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  |             return $this; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  |         } else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  |             throw new CountryNotAvailableException(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  |     public function getMarketPlaceIds() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  |         return $this->marketplaceIds; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 |  |  |     public function post($action, $path, $version, $params = [], $body = null) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 155 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 |  |  |         $headers = [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  |             'Accept' => 'application/xml', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 |  |  |             'x-amazon-user-agent' => self::APPLICATION_NAME.'/'.self::APPLICATION_VERSION, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  |         ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 |  |  |         if ($action === 'SubmitFeed') { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  |             $headers['Content-Type'] = 'text/xml; charset=iso-8859-1'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  |         $requestOptions = [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  |             'headers' => $headers, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  |             'body' => $body, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  |             'query' => $this->getQuery($path, $action, $version, $params), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  |         ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  |         $uri = 'https://'.$this->getDomain().$path; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  |         $response = $this->client->post($uri, $requestOptions); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  |         $xmlResponse = simplexml_load_string($response->getBody()->getContents()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  |         $json = json_encode($xmlResponse); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 |  |  |         return json_decode($json, true); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 179 |  |  |     public function getDefaultQueryParams($action, $version, $params = []) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 181 |  |  |         $queryParameters = [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 182 |  |  |             'Action' => $action, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 183 |  |  |             'Timestamp' => $this->getTimeStamp(), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 184 |  |  |             'AWSAccessKeyId' => $this->getAccessKeyId(), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 185 |  |  |             'SellerId' => $this->getSellerId(), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 186 |  |  |             'SignatureMethod' => $this->getSignatureMethod(), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 187 |  |  |             'SignatureVersion' => $this->getSignatureVersion(), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 188 |  |  |             'Version' => $version, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 189 |  |  |         ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 190 |  |  |         $queryParameters = array_merge($queryParameters, $this->getMarketPlaceParams()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 191 |  |  |         $queryParameters = array_merge($queryParameters, $params); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 192 |  |  |         ksort($queryParameters); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 193 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 194 |  |  |         return $queryParameters; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 195 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 196 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 197 |  |  |     public function getMarketPlaceParams() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 198 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 199 |  |  |         $params = []; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 200 |  |  |         foreach ($this->marketPlaces as $index => $marketPlace) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 201 |  |  |             $keyName = 'MarketplaceId.Id.'.($index + 1); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 202 |  |  |             $params[$keyName] = $this->countries[$marketPlace]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 203 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 204 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 205 |  |  |         return $params; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 206 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 207 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 208 |  |  |     public function generateRequestUri($action, $version, $params = []) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 209 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 210 |  |  |         return http_build_query($this->getDefaultQueryParams($action, $version, $params), null, '&', PHP_QUERY_RFC3986); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 211 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 212 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 213 |  |  |     public function getQueryStringForSignature($path, $action, $version, $params = []) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 214 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 215 |  |  |         return  'POST' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 216 |  |  |                     ."\n" | 
            
                                                                                                            
                            
            
                                    
            
            
                | 217 |  |  |                     .$this->getDomain() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 218 |  |  |                     ."\n" | 
            
                                                                                                            
                            
            
                                    
            
            
                | 219 |  |  |                     .$path | 
            
                                                                                                            
                            
            
                                    
            
            
                | 220 |  |  |                     ."\n" | 
            
                                                                                                            
                            
            
                                    
            
            
                | 221 |  |  |                     .$this->generateRequestUri($action, $version, $params); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 222 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 223 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 224 |  |  |     public function generateSignature($path, $action, $version, $params = []) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 225 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 226 |  |  |         $signature = base64_encode( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 227 |  |  |             hash_hmac( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 228 |  |  |                 'sha256', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 229 |  |  |                 $this->getQueryStringForSignature($path, $action, $version, $params), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 230 |  |  |                 $this->secretKey, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 231 |  |  |                 true | 
            
                                                                                                            
                            
            
                                    
            
            
                | 232 |  |  |             ) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 233 |  |  |         ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 234 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 235 |  |  |         return $signature; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 236 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 237 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 238 |  |  |     public function getQuery($path, $action, $version, $params = []) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 239 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 240 |  |  |         $queryParameters = $this->getDefaultQueryParams($action, $version, $params); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 241 |  |  |         $queryParameters['Signature'] = $this->generateSignature($path, $action, $version, $params); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 242 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 243 |  |  |         return $queryParameters; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 244 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 245 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 246 |  |  |  | 
            
                        
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: