如何使用 rest API 查询 Azure table 存储

Question

我想在 Azure 存储帐户中访问我的 table。

import requests

import hashlib

import base64

import hmac

import datetime
storageAccountName = 'rishistorage1234' # your storage account name
storageKey='my-account-key'# your storage account access key
url = 'https://' + storageAccountName + '.table.core.windows.net/table1'
version = '2016-05-31' # x-ms-version
date = datetime.datetime.utcnow().strftime("%a, %d %b %Y %H:%M:%S GMT")  #x-ms-date
parameters = 'table1'
CanonicalizedResources = '/' + storageAccountName + '/' + parameters
CanonicalizedHeaders = 'x-ms-date:' + date 
stringToSign = 'GET\n\n\n\n\n' + CanonicalizedHeaders + '\n' + CanonicalizedResources
# note the b64decode of the storageKey
signature = base64.b64encode(hmac.new(base64.b64decode(storageKey), 
msg=stringToSign, digestmod=hashlib.sha256).digest())
headers = {'x-ms-date': date,
     'x-ms-version': version,
       'Authorization': 'SharedKeyLite ' + storageAccountName + ':' + 
signature}

# send the request
#print signature
response = requests.get(url, headers=headers)
print response
print response.headers
print response.content

抱歉，我无法将所有内容复制为 "code"，请忽略缩进错误。 table 的名称是 table1 存储帐户的名称是 risistorage1234 访问键 1 是 my-account-key.

我得到的回复是

    <Response [403]>
{'Content-Length': '419', 'Access-Control-Expose-Headers': 'x-ms-request-id,Content-Length,Date,Transfer-Encoding', 'x-ms-request-id': 'e3b01b8c-0002-0024-0d3d-b71dc2000000', 'Server': 'Microsoft-HTTPAPI/2.0', 'Date': 'Mon, 17 Apr 2017 05:40:23 GMT', 'Access-Control-Allow-Origin': '*', 'Content-Type': 'application/xml'}
<?xml version="1.0" encoding="utf-8"?><m:error xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata"><m:code>AuthenticationFailed</m:code><m:message xml:lang="en-US">Server failed to authenticate the request. Make sure the value of Authorization header is formed correctly including the signature.
RequestId:e3b01b8c-0002-0024-0d3d-b71dc2000000
Time:2017-04-17T05:40:24.3250398Z</m:message></m:error>

Answer 1

根据您的错误信息和代码，我确定问题是由于在 SharedKeyLite 中为 Azure Table 服务使用了不正确的 StringToSign 格式引起的，您的 StringToSign 格式适用于 Blob，不适用于 Table，如下所示。

您的错误代码和信息属于AuthenticationFailed，请参阅here。

Azure Table 服务的正确 StringToSign 格式应如下所示，例如 StringToSign = Date + "\n"+ CanonicalizedResource。

Answer 2

如果有人正在寻找使用 REST API 从天蓝色 table 存储查询 table 的工作 python 代码，这里是代码

import requests

import hashlib

import base64

import hmac

import datetime
storageAccountName = 'my-account-name' # your storage account name
storageKey='my-account-key'# your storage account access key
url = 'https://' + storageAccountName + '.table.core.windows.net/table-name'
version = '2016-05-31' # x-ms-version
date = datetime.datetime.utcnow().strftime("%a, %d %b %Y %H:%M:%S GMT")  #x-ms-date
parameters = 'table-name'
CanonicalizedResources = '/' + storageAccountName + '/' + parameters
CanonicalizedHeaders = 'x-ms-date:' + date 
stringToSign = date + '\n' + CanonicalizedResources
# note the b64decode of the storageKey
signature = base64.b64encode(hmac.new(base64.b64decode(storageKey), 
msg=stringToSign, digestmod=hashlib.sha256).digest())
headers = {'x-ms-date': date,
       'x-ms-version': version,
       'Authorization': 'SharedKeyLite ' + storageAccountName + ':' + 
        signature,
       'Accept': 'application/json;odata=nometadata '}

# send the request
#print signature
response = requests.get(url, headers=headers)
print response
print response.headers
print response.content

更多操作参考这里 https://docs.microsoft.com/en-us/rest/api/storageservices/fileservices/table-service-rest-api

如何使用 rest API 查询 Azure table 存储

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