使用Google文档列表API，Python和OAuth 2进行身份验证 [英] Authentication with the Google Docs List API, Python and OAuth 2

问题描述

我正在尝试将Google Docs API与Python + Django和OAuth 2结合使用.我已经通过google-api-python-client获得了OAuth访问令牌等，其代码实际上是从 http://code.google. com/p/google-api-python-client/source/browse/samples/django_sample/plus/views.py

I'm trying to use the Google Docs API with Python+Django and OAuth 2. I've got the OAuth access token, etc. via google-api-python-client, with the code essentially copied from http://code.google.com/p/google-api-python-client/source/browse/samples/django_sample/plus/views.py

现在，我假设我应该使用Google gdata API 2.0.17版.如果是这样，我将找不到确切的方法来授权使用gdata客户端进行的查询. http://packages.python上的文档. org/gdata/docs/auth.html#upgrading-to-an-access-token (无论如何似乎已经过时了)，比如说要将客户端上的auth_token属性设置为gdata.oauth.OAuthToken的实例.如果是这种情况，我应该将哪些参数传递给OAuthToken?

Now, I assume I should be using the google gdata API, v 2.0.17. If so, I'm unable to find exactly how to authorize queries made using the gdata client. The docs at http://packages.python.org/gdata/docs/auth.html#upgrading-to-an-access-token (which appear outdated anyway), say to set the auth_token attribute on the client to an instance of gdata.oauth.OAuthToken. If that's the case, what parameters should I pass to OAuthToken?

简而言之，我正在寻找一个有关如何授权给定OAuth访问令牌的，如何授权使用gdata API进行查询的示例.

In short, I'm looking for a brief example on how to authorize queries made using the gdata API, given an OAuth access token.

推荐答案

OAuth 2.0序列类似于以下内容(已为您注册的应用程序适当定义了应​​用程序常量).

The OAuth 2.0 sequence is something like the following (given suitably defined application constants for your registered app).

1. 生成请求令牌.

1. Generate the request token.

token = gdata.gauth.OAuth2Token(client_id=CLIENT_ID, 
                                client_secret=CLIENT_SECRET, 
                                scope=" ".join(SCOPES), 
                                user_agent=USER_AGENT)

授权请求令牌.对于简单的命令行应用程序，您可以执行以下操作:

Authorise the request token. For a simple command-line app, you can do something like:

print 'Visit the following URL in your browser to authorise this app:'
print str(token.generate_authorize_url(redirect_url=REDIRECT_URI))
print 'After agreeing to authorise the app, copy the verification code from the browser.'
access_code = raw_input('Please enter the verification code: ')

获取访问令牌.

Get the access token.

token.get_access_token(access_code)

创建一个gdata客户端.

Create a gdata client.

client = gdata.docs.client.DocsClient(source=APP_NAME)

授权客户端.

Authorize the client.

client = token.authorize(client)

您可以执行以下操作，保存访问令牌以供以后使用(因此避免执行手动身份验证步骤，直到令牌再次到期):

You can save the access token for later use (and so avoid having to do the manual auth step until the token expires again) by doing:

f = open(tokenfile, 'w')
blob = gdata.gauth.token_to_blob(token)
f.write(blob)
f.close()

下次启动时，您可以通过以下方式重复使用保存的令牌:

The next time you start, you can reuse the saved token by doing:

f = open(tokenfile, 'r')
blob = f.read()
f.close()
if blob:
    token = gdata.gauth.token_from_blob(blob)

然后，对身份验证序列的唯一更改是，您通过指定refresh_token参数将此令牌传递给OAuth2Token:

Then, the only change to the authentication sequence is that you pass this token to OAuth2Token by specifying a refresh_token argument:

token = gdata.gauth.OAuth2Token(client_id=CLIENT_ID, 
                                client_secret=CLIENT_SECRET, 
                                scope=" ".join(SCOPES), 
                                user_agent=USER_AGENT,
                                refresh_token=token.refresh_token)

希望这会有所帮助.花了一段时间才解决:-).

Hope this helps. It took a while to work it out :-).

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