我已经花了三天时间尝试设置一个简单的 amazon s3 发布表单。 每次我收到此错误时:
SignatureDoesNotMatchThe request signature we calculated does not match the signature you provided. Check your key and signing method.
我没有看到问题。 :-(
<?php
$form = array(
'key' => 'queue/1_1_1234567890.wmv',
'AWSAccessKeyId' => 'mypublickeyishere',
'acl' => 'public-read',
'success_action_redirect' => 'http://someurl.com',
);
$form['policy'] = '{
"expiration": "2015-12-01T12:00:00.000Z",
"conditions": [
{
"acl": "'.$form['acl'].'"
},
{
"success_action_redirect": "'.$form['success_action_redirect'].'"
},
{
"bucket": "thenameofmybucket"
},
[
"starts-with",
"$key",
"queue/"
]
]
}';
$form['policy_encoded'] = base64_encode($form['policy']);
$form['signature'] = base64_encode(hash_hmac( 'sha1', base64_encode(utf8_encode($form['policy'])), 'F90mc5kpjuNMPg8XG7iV6bxOzacYhktcw+RVGzpZ'));
?>
<form action="https://thenameofmybucket.s3.amazonaws.com/" method="post" enctype="multipart/form-data">
<input type="hidden" name="key" value="<?php echo $form['key'] ?>">
<input type="hidden" name="AWSAccessKeyId" value="<?php echo $form['AWSAccessKeyId'] ?>">
<input type="hidden" name="acl" value="<?php echo $form['acl'] ?>">
<input type="hidden" name="success_action_redirect" value="<?php echo $form['success_action_redirect'] ?>">
<input type="hidden" name="policy" value="<?php echo $form['policy_encoded'] ?>">
<input type="hidden" name="signature" value="<?php echo $form['signature'] ?>">
File to upload to S3:
<input name="file" type="file">
<br>
<input type="submit" value="Upload File to S3">
</form>
我在上面替换了存储桶名称以及私钥和公钥。
我按照指示仔细签署了保单: http://docs.amazonwebservices.com/AmazonS3/2006-03-01/dev/HTTPPOSTForms.html#HTTPPOSTConstructPolicy
我错过了什么?为什么代码不起作用?
最佳答案
不需要那个库,你只是缺少一个参数。问题是你没有设置 hash_hmac 函数来输出二进制数据。为此,将第四个参数设置为 true
,如下所示:
$signature = base64_encode(hash_hmac('sha1', $policy_b64, $secret, true));
如果您不设置此项,它将不会按照 AWS 期望的方式对签名进行编码。
关于php - 将表单数据发布到 Amazon S3 存储桶,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/10774293/