Question

当我们尝试将python v12 sdk与Azure Blob存储v12.5.0和Azure核心1.8.2结合使用时，当尝试从连接字符串创建azure blob客户端时，出现身份验证失败的错误。

我用过天蓝色存储斑点== 12.5.0 天蓝色核心== 1.8.2

我尝试使用Python v12 SDK的连接字符串访问我的Blob存储帐户，并收到上述错误。我正在运行的环境是NixShell中的python venv。

调用blob_upload的代码如下：

blob_service_client = BlobServiceClient(account_url=<>,credential=<>)    
blob_client = blob_service_client.get_blob_client(container=container_name,
        blob=file)

我打印出了blob_client，它看起来很正常。但是下一行upload_blob给出了错误。

with open(os.path.join(root,file), "rb") as data:
                    blob_client.upload_blob(data)

错误消息如下

    File "<local_address>/.venv/lib/python3.8/site-packages/azure/storage/blob/_upload_helpers.py", in upload_block_blob
    return client.upload(
  File "<local_address>/.venv/lib/python3.8/site-packages/azure/storage/blob/_generated/operations/_block_blob_operations.py", in upload
    raise models.StorageErrorException(response, self._deserialize)
azure.storage.blob._generated.models._models_py3.StorageErrorException: Operation returned an invalid status 'Server failed to authenticate the request. Make sure the value of Authorization header is formed correctly including the signature.'

因此，我将http put请求打印到了azure blob存储中，并获得了[403]的响应值

Answer 1

我可以使用与您相同的版本很好地运行以下代码。

from azure.storage.blob import BlobServiceClient
blob=BlobServiceClient.from_connection_string(conn_str="your connect string in Access Keys")
with open("./SampleSource.txt", "rb") as data:
    blob.upload_blob(data)

请检查您的连接字符串，并检查您的PC时间。

关于该错误，存在类似的问题：AzureStorage Blob Server failed to authenticate the request. Make sure the value of Authorization header is formed correctly including the signature

更新：

我尝试使用此代码，并得到相同的错误：

from azure.storage.blob import BlobServiceClient
from azure.identity import DefaultAzureCredential

token_credential = DefaultAzureCredential()

blob_service_client = BlobServiceClient(account_url="https://pamelastorage123.blob.core.windows.net/",credential=token_credential)    
blob_client = blob_service_client.get_blob_client(container="pamelac", blob="New Text Document.txt")

with open("D:/demo/python/New Text Document.txt", "rb") as data:
    blob_client.upload_blob(data)

然后我使用AzureCliCredential()而不是DefaultAzureCredential()。我通过Azure CLI使用az login进行身份验证。而且有效。

如果使用环境凭证，则需要设置变量。无论如何，我建议您使用特定凭据代替DefaultAzureCredential。

有关Azure身份的更多详细信息，请参见here。

通过连接字符串访问Azure Blob存储时身份验证失败

1 个答案: