S3发布InvalidPolicyDocument桶依赖？

Question

我将直接HTML POST发送到为存储桶A工作的S3存储桶。如果我保持所有代码完全相同但替换并签署存储桶B的策略，则Amazon会返回InvalidPolicyDocument错误。在接受发布的对象之前，是否需要启用或设置存储桶？

提前致谢！ 本

PS。我已在策略和上传URL中更改了存储桶名称。

PPS。根据要求，我跟踪了Fiddler的两个请求。以下是请求和回复：

好请求：

REQUEST：

------------ae0KM7cH2cH2cH2Ij5Ef1cH2Ef1ae0
Content-Disposition: form-data; name="Filename"

Blue hills.jpg
------------ae0KM7cH2cH2cH2Ij5Ef1cH2Ef1ae0
Content-Disposition: form-data; name="key"

uploads/${filename}
------------ae0KM7cH2cH2cH2Ij5Ef1cH2Ef1ae0
Content-Disposition: form-data; name="signature"

STJNaC3bFVXD9VSUPhId41yw5+w=
------------ae0KM7cH2cH2cH2Ij5Ef1cH2Ef1ae0
Content-Disposition: form-data; name="AWSAccessKeyId"

0WDZ435HNTSCJ306SXR2
------------ae0KM7cH2cH2cH2Ij5Ef1cH2Ef1ae0
Content-Disposition: form-data; name="acl"

private
------------ae0KM7cH2cH2cH2Ij5Ef1cH2Ef1ae0
Content-Disposition: form-data; name="success_action_status"

201
------------ae0KM7cH2cH2cH2Ij5Ef1cH2Ef1ae0
Content-Disposition: form-data; name="policy"

eydjb25kaXRpb25zJzogW3snYnVja2V0JzogJzB3ZHo0MzVobnRzY2ozMDZzeHIyLXRlc3QtYnVja2V0J30sIFsnc3RhcnRzLXdpdGgnLCAnJGtleScsICd1cGxvYWRzLyddLCBbJ3N0YXJ0cy13aXRoJywgJyRGaWxlbmFtZScsICcnXSwgeydhY2wnOiAncHJpdmF0ZSd9LCB7J3N1Y2Nlc3NfYWN0aW9uX3N0YXR1cyc6ICcyMDEnfV0sICdleHBpcmF0aW9uJzogJzIwMDktMDYtMTBUMTg6MTc6NTlaJ30=
------------ae0KM7cH2cH2cH2Ij5Ef1cH2Ef1ae0
Content-Disposition: form-data; name="file"; filename="Blue hills.jpg"
Content-Type: application/octet-stream

响应：

<?xml version="1.0" encoding="UTF-8"?>
<PostResponse><Location>http://0wdz435hntscj306sxr2-test-bucket.s3.amazonaws.com/uploads%2FBlue+hills.jpg</Location><Bucket>0wdz435hntscj306sxr2-test-bucket</Bucket><Key>uploads/Blue hills.jpg</Key><ETag>"6fb2a38dc107eacb41cf1656e899cf70"</ETag></PostResponse>

糟糕的要求：

REQUEST：

------------Ij5cH2cH2gL6gL6gL6Ij5Ij5GI3cH2
Content-Disposition: form-data; name="Filename"

Water lilies.jpg
------------Ij5cH2cH2gL6gL6gL6Ij5Ij5GI3cH2
Content-Disposition: form-data; name="policy"

eydjb25kaXRpb25zJzogW3snYnVja2V0JzogdScwd2R6NDM1aG50c2NqMzA2c3hyMi1tNGxiZXRhJ30sIFsnc3RhcnRzLXdpdGgnLCAnJGtleScsICd1cGxvYWRzLyddLCBbJ3N0YXJ0cy13aXRoJywgJyRGaWxlbmFtZScsICcnXSwgeydhY2wnOiAncHJpdmF0ZSd9LCB7J3N1Y2Nlc3NfYWN0aW9uX3N0YXR1cyc6ICcyMDEnfSwgeydDb250ZW50LVR5cGUnOiAnYXBwbGljYXRpb24vb2N0ZXQtc3RyZWFtJ31dLCAnZXhwaXJhdGlvbic6ICcyMDA5LTA2LTEwVDE4OjA5OjE0Wid9
------------Ij5cH2cH2gL6gL6gL6Ij5Ij5GI3cH2
Content-Disposition: form-data; name="key"

uploads/${filename}
------------Ij5cH2cH2gL6gL6gL6Ij5Ij5GI3cH2
Content-Disposition: form-data; name="signature"

u+pOKfpLrFaRhiP3lfTPbCyWl3I=
------------Ij5cH2cH2gL6gL6gL6Ij5Ij5GI3cH2
Content-Disposition: form-data; name="AWSAccessKeyId"

0WDZ435HNTSCJ306SXR2
------------Ij5cH2cH2gL6gL6gL6Ij5Ij5GI3cH2
Content-Disposition: form-data; name="acl"

private
------------Ij5cH2cH2gL6gL6gL6Ij5Ij5GI3cH2
Content-Disposition: form-data; name="success_action_status"

201
------------Ij5cH2cH2gL6gL6gL6Ij5Ij5GI3cH2
Content-Disposition: form-data; name="Content-Type"

application/octet-stream
------------Ij5cH2cH2gL6gL6gL6Ij5Ij5GI3cH2
Content-Disposition: form-data; name="file"; filename="Water lilies.jpg"
Content-Type: application/octet-stream

响应：

100
<?xml version="1.0" encoding="UTF-8"?>
<Error><Code>InvalidPolicyDocument</Code><Message>Invalid Policy: Invalid JSON.</Message><RequestId>2D883FC8947547AC</RequestId><HostId>G1r2SCbd87UmmlOU0hSY3/VTGGXBEmXdLXoxaGt4GJjpELBVHXtjn6PSAPhufLAC</HostId></Error>
0

Answer 1

确保在操作URL和策略文档中更改存储桶名称。

<强>更新

以下是两种策略的Base64解码版本：

不可

{
  'conditions': [
    {
      'bucket': '0wdz435hntscj306sxr2-test-bucket'
    },
    ['starts-with', '$key', 'uploads/'],
    ['starts-with', '$Filename', ''],
    {
      'acl': 'private'
    },
    {
      'success_action_status': '201'
    }
  ],
  'expiration': '2009-06-10T18:17:59Z'
}

<强> BAD

{
  'conditions': [
    {
      'bucket': u'0wdz435hntscj306sxr2-m4lbeta'
    },
    ['starts-with', '$key', 'uploads/'],
    ['starts-with', '$Filename', ''],
    {
      'acl': 'private'
    },
    {
      'success_action_status': '201'
    },
    {
      'Content-Type': 'application/octet-stream'
    }
  ],
  'expiration': '2009-06-10T18:09:14Z'
}

不知何故，额外的“你”被困在糟糕政策的桶线中

Answer 2

如果您使用“100％兼容”服务之一而不是原始S3，请检查政策中的密钥顺序，expiration必须是第一个（如docs中所述）。