从Scratchpad请求的Amazon MWS ListOrders [英] Amazon MWS ListOrders from Scratchpad to request

问题描述

我正在尝试通过MWS Scratchpad获取订单列表. 在暂存器中，一切正常.

I'm trying to get the list of orders through the MWS Scratchpad. In the scratchpad everything works fine.

HTTP POST是

The HTTP POST is

POST /Orders/2013-09-01?AWSAccessKeyId=$CHIAVE_ACCESSO
&Action=ListOrders
&SellerId=$SELLER_ID
&SignatureVersion=2
&Timestamp=2016-11-29T18%3A58%3A52Z
&Version=2013-09-01
&Signature=$SIGNATURE
&SignatureMethod=HmacSHA256
&CreatedAfter=2016-10-31T23%3A00%3A00Z
&MarketplaceId.Id.1=APJ6JRA9NG5V4 HTTP/1.1
Host: mws.amazonservices.it
x-amazon-user-agent: AmazonJavascriptScratchpad/1.0 (Language=Javascript)
Content-Type: text/xml

并且要签名的字符串(在第二个框中)是

and the string to Sign (in the second box) is

POST
mws.amazonservices.it
/Orders/2013-09-01
AWSAccessKeyId=$CHIAVE_ACCESSO&Action=ListOrders&CreatedAfter=2016-10-31T23%3A00%3A00Z&MarketplaceId.Id.1=APJ6JRA9NG5V4&SellerId=$SELLER_ID&Signat    ureMethod=HmacSHA256&SignatureVersion=2&Timestamp=2016-11-29T18%3A58%3A52Z&Version=2013-09-01

显示暂存器的结果是正确的.

The results that shows the scratchpad are right.

我想做的是通过PHP发出请求并详细说明结果.

What I would like to do is to make the request via PHP and elaborate the result.

但是，如果我拳头很强，请尝试将请求发送到我的浏览器上，例如

But If I fist try to put the request on my browser like

https://mws.amazonservices.it/Orders/2013- 09-01?AWSAccessKeyId = $ CHIAVE_ACCESSO& Action = ListOrders& MarketplaceId = APJ6JRA9NG5V4& SellerId = $ SELLER_ID& SignatureMethod = HmacSHA256& SignatureVersion = 2& Timestamp = 2016-11-29T19％3A13Z％3A01. 2013-09-01& Signature = Q9Xnr9JhtkzeLUAsCFKPln8SS34FkCQRmELE2WiIhPo％3D& AfterdAfter = 2016-10-31T23％3A00％3A00Z

https://mws.amazonservices.it/Orders/2013-09-01?AWSAccessKeyId=$CHIAVE_ACCESSO&Action=ListOrders&MarketplaceId=APJ6JRA9NG5V4&SellerId=$SELLER_ID&SignatureMethod=HmacSHA256&SignatureVersion=2&Timestamp=2016-11-29T19%3A13%3A01.000Z&Version=2013-09-01&Signature=Q9Xnr9JhtkzeLUAsCFKPln8SS34FkCQRmELE2WiIhPo%3D&CreatedAfter=2016-10-31T23%3A00%3A00Z

错误是

我用来创建签名的方法是在stackoverflow上找到的，如下所示:

The Method I used to create the signature was find on stackoverflow and is the following:

$sign  = 'GET' . "\n";
$sign .= 'mws.amazonservices.it' . "\n";
$sign .= '/Orders/2013-09-01' . "\n";
$sign .= $arr;

$signature = hash_hmac("sha256", $sign, $CHIAVE_SEGRETA, true);
$signature = urlencode(base64_encode($signature));

我在做什么错了?

推荐答案

参数的顺序很重要.

以下是一些示例代码，应该为您提供一个良好的起点.您只需要对其稍做修改以适合您的系统即可.

Here is some sample code that should give you a good place to start. You'll just need to modify it slightly to fit your system.

class AmazonMWS
{
    private $secretKey = '';

    private $parameters = array();

    /**
     * Constructor for the AmazonMWS class.
     * Initializes constants.
     */
    public function __construct() 
    {
        $this->secretKey = Constant::get('SECRET_KEY');

        $this->parameters['AWSAccessKeyId']     = Constant::get('AWSAccessKeyId');
        $this->parameters['MarketplaceId.Id.1'] = Constant::get('MarketplaceId.Id.1');
        $this->parameters['SellerId']           = Constant::get('SellerId');
        $this->parameters['SignatureMethod']    = Constant::get('SignatureMethod');
        $this->parameters['SignatureVersion']   = Constant::get('SignatureVersion');
    }

    public function setListOrders()
    {
        $this->parameters['Action'] = 'ListOrders';
        $this->parameters['Version'] = '2013-09-01';
        $this->parameters['Timestamp'] = $this->getTimestamp();

        // this part should change and depend on the method/parameter.. for now just for testing

        $this->parameters['CreatedAfter'] = '2015-11-01';
    }

    public function listOrders()
    {
        $request = "https://mws.amazonservices.com/Orders/2013-09-01?";
        $request .= $this->getParameterString($this->parameters) . "&Signature=" . $this->calculateSignature($this->calculateStringToSign($this->parameters));

        echo $request;

        return Curl::fetchSSL($request);
    }

    /**
     * Calculates String to sign.
     * 
     * @param array $parameters request parameters
     * @return String to sign
     */
    protected function calculateStringToSign(array $parameters)
    {
        $stringToSign  = 'GET' . "\n";
        $stringToSign .= 'mws.amazonservices.com' . "\n";
        $stringToSign .= '/Orders/2013-09-01' . "\n";
        $stringToSign .= $this->getParameterString($parameters);

        return $stringToSign;
    }

    /**
     * Gets the query parameters as a String sorted in natural-byte order.
     * 
     * @param array $parameters request parameters
     * @return String of parameters
     */
    protected function getParameterString(array $parameters)
    {
        $url = array();
        foreach ($parameters as $key => $val) {
            $key = $this->urlEncode($key);
            $val = $this->urlEncode($val);
            $url[] = "{$key}={$val}";
        }
        sort($url);

        $parameterString = implode('&', $url);

        return $parameterString;
    }

    /**
     * Computes RFC 2104-compliant HMAC signature.
     *
     * @param String to sign
     */
    protected function calculateSignature($stringToSign)
    {
        $signature = hash_hmac("sha256", $stringToSign, $this->secretKey, true);
        return urlencode(base64_encode($signature));
    }

    /**
     * URL encodes a string.
     */
    protected function urlEncode($string)
    {
        return str_replace("%7E", "~", rawurlencode($string));
    }

    /**
     * Gets the current date as ISO 8601 timestamp
     */
    protected function getTimestamp()
    {
        return gmdate("Y-m-d\TH:i:s.\\0\\0\\0\\Z", time());
    }
}

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