8

我正在尝试使用 AWS cognito 服务来验证和上传文件。我已获得我的 regionType、identityPool、AWS 账户 ID 和 UnAuthRole。我也知道生产和开发存储桶的名称。

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,然后再上传文件。

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

错误:

   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>

这个相应的 iOS 代码可以正常工作:

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!

4

3 回答 3

2

这个问题实际上是无效的,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。

从特定存储桶上传和下载适用于上述代码,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)
于 2015-03-12T17:03:02.800 回答
1

PhilBot,我不知道为什么您的原始代码示例使用 boto(而不是 boto3)连接到 s3。该代码使用 boto3 连接到 cognito。到目前为止,boto3 是稳定的,可能没有太多理由再使用 boto。(也许当您最初发布您的问题时,boto3 不像今天那么稳定。)

当我尝试使用您的代码通过 boto3 连接到 kinesis 时,它不起作用——我必须将 response["Credentials"]["SessionToken"] 作为 aws_session_token 传递给 client() 函数。

于 2017-02-09T08:52:08.893 回答
0

这是你的错误:

File "./test.py", line 32, in <module>
bucket = conn.get_bucket("elektradevbucket")

这是您引用存储桶的代码部分:

bucket = conn.get_bucket("testbucket")
'''
s3 = boto3.resource('s3')
for bucket in s3.buckets.all():
    print(bucket.name)
s3.Bucket('testbucket')

您确定您正在运行或调用正确的脚本吗?

最好的,-尤利安

于 2015-03-11T15:51:18.883 回答