Amazon AWS Cognito 和 Python Boto3 建立 AWS 连接并将文件上传到 Bucket

我正在尝试使用 AWS cognito 服务来验证和上传文件。我已获得了 RegionType、identityPool、AWS 账户 ID 和 UnAuthRole。我还知道生产和开发桶的名称。

我想我正在设置 AWS 访问密钥和 AWS 密钥...我想使用 cognito 进行身份验证并使用结果来允许我进行存储桶列表以及稍后的文件上传。

我究竟做错了什么？如何使用 cognito id 建立 S3 连接？

这是我的代码和产生的错误：

#!/usr/bin/python

import boto3
import boto
#boto.set_stream_logger('foo')
import json
client = boto3.client('cognito-identity','us-east-1')
resp =  client.get_id(AccountId='<ACCNTID>',IdentityPoolId='<IDPOOLID>')
print "\nIdentity ID: %s"%(resp['IdentityId'])
print "\nRequest ID: %s"%(resp['ResponseMetadata']['RequestId'])
resp = client.get_open_id_token(IdentityId=resp['IdentityId'])
token = resp['Token']
print "\nToken: %s"%(token)
print "\nIdentity ID: %s"%(resp['IdentityId'])
resp = client.get_credentials_for_identity(IdentityId=resp['IdentityId'])
secretKey = resp['Credentials']['SecretKey']
accessKey = resp['Credentials']['AccessKeyId']
print "\nSecretKey: %s"%(secretKey)
print "\nAccessKey ID: %s"%(accessKey)
print resp
conn = boto.connect_s3(aws_access_key_id=accessKey,aws_secret_access_key=secretKey,debug=0)
print "\nConnection: %s"%(conn)
for bucket in conn.get_all_buckets():
    print bucket.name

Error:

   Traceback (most recent call last):
  File "./test.py", line 32, in <module>
    for bucket in conn.get_all_buckets():
  File "/usr/local/lib/python2.7/dist-packages/boto/s3/connection.py", line 440, in get_all_buckets
    response.status, response.reason, body)
boto.exception.S3ResponseError: S3ResponseError: 403 Forbidden
<?xml version="1.0" encoding="UTF-8"?>
<Error><Code>InvalidAccessKeyId</Code><Message>The AWS Access Key Id you provided does not exist in our records.</Message><AWSAccessKeyId>ASIAILXMPZEMJAVZN7TQ</AWSAccessKeyId><RequestId>10631ACFF95610DD</RequestId><HostId>PGWDRBmhLjjv8Ast8v6kVHOG3xR8erJRV2ob3/2RmqHXwrg8HCZV578YsNLaoL24Hknr+nh033U=</HostId></Error>

相应的 iOS 代码运行良好：

AWSCognitoCredentialsProvider *credentialsProvider =
[AWSCognitoCredentialsProvider credentialsWithRegionType:awsCognitoRegionType
                                               accountId:awsAccountId
                                          identityPoolId:awsCognitoIdentityPool
                                           unauthRoleArn:unauthRoleArn
                                                  authRoleArn:nil];

AWSServiceConfiguration *configuration = [AWSServiceConfiguration configurationWithRegion:awsCognitoRegionType
                                                                      credentialsProvider:credentialsProvider];

....

AWSS3TransferManagerUploadRequest *uploadRequest = [AWSS3TransferManagerUploadRequest new];
uploadRequest.bucket = [ELEEnvironment currentEnvironment].userDataS3Bucket;
uploadRequest.key = key;
uploadRequest.body = uploadFileURL;
[[self uploadTask:uploadRequest] continueWithExecutor:[BFExecutor mainThreadExecutor]...

谢谢你的帮助！

这个问题确实无效，因为身份验证不是在创建会话时失败，而是在尝试列出存储桶时失败。

使用上述代码可以很好地从特定存储桶上传和下载，但不适用于所有存储桶的列表。

# Upload a new file
data = open('test.jpg', 'rb')
s3.Bucket('mybucket').put_object(Key='test.jpg', Body=data)

# S3 Object
obj = s3.Object(bucket_name='mybucket', key='test.jpg')
response = obj.get()
data = response['Body'].read()
print len(data)