我正在尝试使用亚马逊支付服务,他们要求我这样做:
这是完整的签名,因此您可以看到我添加了签名方法:
$string_to_sign = "GET\n
authorize.payments-sandbox.amazon.com\n
cobranded-ui/actions/start?
SignatureMethod=HmacSHA256&SignatureVersion=2&callerKey=my_key&callerReference=YourCallerReference&paymentReason=donation&pipelineName=SingleUse&returnUrl=http%3A%2F%2Fyourwebsite.com%2Freturn.html&transactionAmount=4.0";
然后我像下面这样加密它。
$encoded_string_to_sign = URLEncode(Base64_Encode(hash_hmac("sha256", $string_to_sign, 'my_secret_key')));
我这样做了,但后来我从他们那里得到一个错误,说:
Caller Input Exception: The following input(s) are either invalid or absent:[signatureMethod]
知道这里可能出了什么问题吗?
这是完整的代码:(变量在上面分配了值)
<?php
$string_to_sign = 'GET
authorize.payments-sandbox.amazon.com/cobranded-ui/actions/startSignatureMethod=HmacSHA256&SignatureVersion=2&callerKey=AKIAJENBYSJCJX2IDWDQ&callerReference=YourCallerReference&paymentReason=donation&pipelineName=SingleUse&returnUrl=http%3A%2F%2Fproblemio.com&transactionAmount=4.0';
$encoded_string_to_sign = URLEncode(Base64_Encode(hash_hmac("sha256", $string_to_sign, 'my_secret_key')));
$amazon_request_sandbox = 'https://authorize.payments-sandbox.amazon.com/cobranded-ui/actions/start?SignatureVersion=2&returnUrl='.$return_url.'&paymentReason='.$payment_reason.'&callerReference=YourCallerReference&callerKey='.$my_access_key_id.'&transactionAmount=4.0&pipelineName=SingleUse&SignatureMethod=HmacSHA256&Signature='.$encoded_string_to_sign;
//echo $amazon_request_sandbox; - use this if you want to see the resulting request and paste it into the browser
header('Location: '.$amazon_request_sandbox);
?>
谢谢!!