Google Oath2 库在调用 flow.InstalledAppFlow.from_client_secrets_file() 时引发 CSRF 警告

Question

我有以下Python代码：

scopes = ['https://www.googleapis.com/auth/drive',
          'https://www.googleapis.com/auth/spreadsheets',
          'https://www.googleapis.com/auth/gmail.compose']


appflow = flow.InstalledAppFlow.from_client_secrets_file(
            "client_secret.json", scopes=scopes
        )

appflow.run_local_server()

credentials = appflow.credentials

return credentials

一切似乎都工作正常，它打开一个 Web 浏览器选项卡并请求用户授权，但是，当返回脚本时，它会引发此错误：

test_pytest.py:34: in <module>
    HF_CALC = Calculator(SHEET_URLS)
app\helpers\hf_calculations.py:24: in __init__
    self.gspread_accessor = GspreadAccessor()
app\helpers\utilities.py:547: in __init__
    self.google_sheets = self.authorize_google_sheets()
app\helpers\utilities.py:552: in authorize_google_sheets
    credentials = get_credentials()
app\helpers\utilities.py:84: in get_credentials
    appflow.run_local_server()
appvenv\lib\site-packages\google_auth_oauthlib\flow.py:480: in run_local_server
    self.fetch_token(authorization_response=authorization_response)
appvenv\lib\site-packages\google_auth_oauthlib\flow.py:288: in fetch_token
    return self.oauth2session.fetch_token(self.client_config["token_uri"], **kwargs)
appvenv\lib\site-packages\requests_oauthlib\oauth2_session.py:240: in fetch_token
    authorization_response, state=self._state
appvenv\lib\site-packages\oauthlib\oauth2\rfc6749\clients\web_application.py:203: in parse_request_uri_response
    response = parse_authorization_code_response(uri, state=state)
appvenv\lib\site-packages\oauthlib\oauth2\rfc6749\parameters.py:262: in parse_authorization_code_response
    raise MismatchingStateError()
E   oauthlib.oauth2.rfc6749.errors.MismatchingStateError: (mismatching_state) CSRF Warning! State not equal in request and response.

我没有用相同的方法发现相同的错误，所以没有答案对我的案例有用。

编辑

这是我的

client_secret.json

:

{
    "installed": {
        "client_id": "my_client_id",
        "project_id": "my_project_id",
        "auth_uri": "https://accounts.google.com/o/oauth2/auth",
        "token_uri": "https://oauth2.googleapis.com/token",
        "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
        "client_secret": "my_client_secret",
        "redirect_uris": [
            "urn:ietf:wg:oauth:2.0:oob",
            "http://localhost"
        ]
    }
}

Answer 1

根据错误

MismatchingStateError

，您似乎没有在请求中正确传递某些内容。

此代码在 oauth2 rfc6749 参数文件中产生错误。

def parse_authorization_code_response(uri, state=None):
    """Parse authorization grant response URI into a dict.
    If the resource owner grants the access request, the authorization
    server issues an authorization code and delivers it to the client by
    adding the following parameters to the query component of the
    redirection URI using the ``application/x-www-form-urlencoded`` format:
    **code**
            REQUIRED.  The authorization code generated by the
            authorization server.  The authorization code MUST expire
            shortly after it is issued to mitigate the risk of leaks.  A
            maximum authorization code lifetime of 10 minutes is
            RECOMMENDED.  The client MUST NOT use the authorization code
            more than once.  If an authorization code is used more than
            once, the authorization server MUST deny the request and SHOULD
            revoke (when possible) all tokens previously issued based on
            that authorization code.  The authorization code is bound to
            the client identifier and redirection URI.
    **state**
            REQUIRED if the "state" parameter was present in the client
            authorization request.  The exact value received from the
            client.
    :param uri: The full redirect URL back to the client.
    :param state: The state parameter from the authorization request.
    For example, the authorization server redirects the user-agent by
    sending the following HTTP response:
    .. code-block:: http
        HTTP/1.1 302 Found
        Location: https://client.example.com/cb?code=SplxlOBeZQQYbYS6WxSbIA
                &state=xyz
    """
    if not is_secure_transport(uri):
        raise InsecureTransportError()

    query = urlparse.urlparse(uri).query
    params = dict(urlparse.parse_qsl(query))

    if state and params.get('state', None) != state:
        raise MismatchingStateError()

    if 'error' in params:
        raise_from_error(params.get('error'), params)

    if not 'code' in params:
        raise MissingCodeError("Missing code parameter in response.")

    return params

参数文件中的这一行触发了错误：

if state and params.get('state', None) != state:
        raise MismatchingStateError()

因为您正在使用

InstalledAppFlow

和

run_local_server()' I think that the error is linked to your 

client_secret.json` 文件。

我在您的

client_secret.json

文件中注意到您正在使用可选参数

auth_provider_x509_cert_url.

根据 API，使用此可选参数时

client_secret.json

文件的正确格式是这样的：

{
  "installed": {
    "client_id": "[[INSERT CLIENT ID HERE]]",
    "client_secret": "[[INSERT CLIENT SECRET HERE]]",
    "auth_uri": "https://accounts.google.com/o/oauth2/auth",
    "token_uri": "https://accounts.google.com/o/oauth2/token",
    "client_email": "",
    "redirect_uris": [
      "urn:ietf:wg:oauth:2.0:oob",
      "oob"
    ],
    "client_x509_cert_url": "",
    "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs"
  }
}