通过 REST API & Python 连接到 Azure 存储模拟器

Question

我无法使用 REST 连接到 Azure 存储模拟器 & Python。

我可以使用 Python SDK

我想尝试进行一些 REST 调用以更好地了解功能、比较速度并查看在云函数中使用以减小图像大小。

我尝试使用此处找到的代码，但是在使用模拟器时，我经常返回 AuthenticationFailed

我在 github https://github.com/Azure-Samples/storage-dotnet-rest-api-with-auth 上找到了一个最近的 C# 项目。如果我包括模拟器 account_name 和 account_key 它运行得很好。

所以我稍微修改了代码，更新了 api_version = '2017-04-17' 和规范化资源以匹配，但仍然不好。

请帮忙

import datetime
import hmac
import hashlib
import base64

storage_account_name = "devstoreaccount1"
storage_account_key = "Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw=="
api_version = '2017-04-17'
request_time = datetime.datetime.utcnow().strftime('%a, %d %b %Y %H:%M:%S GMT')

string_params = {
    'verb': 'GET',
    'Content-Encoding': '',
    'Content-Language': '',
    'Content-Length': '',
    'Content-MD5': '',
    'Content-Type': '',
    'Date': '',
    'If-Modified-Since': '',
    'If-Match': '',
    'If-None-Match': '',
    'If-Unmodified-Since': '',
    'Range': '',
    'CanonicalizedHeaders': 'x-ms-date:' + request_time + '\nx-ms-version:' + api_version + '\n',
    'CanonicalizedResource': '/' + storage_account_name + '/'  + storage_account_name + '\ncomp=list'
}

string_to_sign = (string_params['verb'] + '\n'
                  + string_params['Content-Encoding'] + '\n'
                  + string_params['Content-Language'] + '\n'
                  + string_params['Content-Length'] + '\n'
                  + string_params['Content-MD5'] + '\n'
                  + string_params['Content-Type'] + '\n'
                  + string_params['Date'] + '\n'
                  + string_params['If-Modified-Since'] + '\n'
                  + string_params['If-Match'] + '\n'
                  + string_params['If-None-Match'] + '\n'
                  + string_params['If-Unmodified-Since'] + '\n'
                  + string_params['Range'] + '\n'
                  + string_params['CanonicalizedHeaders']
                  + string_params['CanonicalizedResource'])


signed_string = base64.b64encode(hmac.new(base64.b64decode(storage_account_key), msg=string_to_sign.encode('utf-8'), digestmod=hashlib.sha256).digest()).decode()
authHV= {'SharedKey ' + storage_account_name + ':' + signed_string}

headers = {
    'x-ms-date' : request_time,
    'x-ms-version' : api_version,
    'Authorization' : authHV
}


url = ('http://localhost:10000/' + storage_account_name + '?comp=list')
#
r = requests.get(url, headers = headers)

print(r.content)

Answer 1

您的代码中有 2 个错误：

1.In'CanonicalizedResource'，你应该使用'\ncomp:list'而不是'\ncomp=ist'

2.For变量authHV，你应该定义为authHV=('SharedKey ' + storage_account_name + ':' + signed_string)

还要记住 import requests 模块。

请使用下面的代码，它在我这边有效：

import requests
import datetime
import hmac
import hashlib
import base64

storage_account_name = 'devstoreaccount1'
storage_account_key = 'Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw=='
#api_version = '2016-05-31'
api_version = '2017-04-17'
request_time = datetime.datetime.utcnow().strftime('%a, %d %b %Y %H:%M:%S GMT')

string_params = {
    'verb': 'GET',
    'Content-Encoding': '',
    'Content-Language': '',
    'Content-Length': '',
    'Content-MD5': '',
    'Content-Type': '',
    'Date': '',
    'If-Modified-Since': '',
    'If-Match': '',
    'If-None-Match': '',
    'If-Unmodified-Since': '',
    'Range': '',
    'CanonicalizedHeaders': 'x-ms-date:' + request_time + '\nx-ms-version:' + api_version + '\n',
    'CanonicalizedResource': '/' + storage_account_name +'/'+storage_account_name + '\ncomp:list' #note, it should be '\ncomp:list', no '/'
}

string_to_sign = (string_params['verb'] + '\n' 
                  + string_params['Content-Encoding'] + '\n'
                  + string_params['Content-Language'] + '\n'
                  + string_params['Content-Length'] + '\n'
                  + string_params['Content-MD5'] + '\n' 
                  + string_params['Content-Type'] + '\n' 
                  + string_params['Date'] + '\n' 
                  + string_params['If-Modified-Since'] + '\n'
                  + string_params['If-Match'] + '\n'
                  + string_params['If-None-Match'] + '\n'
                  + string_params['If-Unmodified-Since'] + '\n'
                  + string_params['Range'] + '\n'
                  + string_params['CanonicalizedHeaders']
                  + string_params['CanonicalizedResource'])

signed_string = base64.b64encode(hmac.new(base64.b64decode(storage_account_key), msg=string_to_sign.encode('utf-8'), digestmod=hashlib.sha256).digest()).decode()

headers = {
    'x-ms-date' : request_time,
    'x-ms-version' : api_version,
    'Authorization' : ('SharedKey ' + storage_account_name + ':' + signed_string)
}

url = ('http://127.0.0.1:10000/' + storage_account_name + '?comp=list')

r = requests.get(url, headers = headers)

print(r.status_code)
print(r.content)

测试结果如下：

通过 REST API & Python 连接到 Azure 存储模拟器

Connect to Azure Storage Emulator via REST API & Python

python

rest

azure

azure-storage-emulator

azure-blob-storage