106 lines
3.4 KiB
Python
106 lines
3.4 KiB
Python
import base64
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from authlib.common.urls import add_params_to_qs, add_params_to_uri
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from authlib.common.encoding import to_bytes, to_native
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from .rfc6749 import OAuth2Token
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from .rfc6750 import add_bearer_token
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def encode_client_secret_basic(client, method, uri, headers, body):
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text = f'{client.client_id}:{client.client_secret}'
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auth = to_native(base64.b64encode(to_bytes(text, 'latin1')))
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headers['Authorization'] = f'Basic {auth}'
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return uri, headers, body
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def encode_client_secret_post(client, method, uri, headers, body):
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body = add_params_to_qs(body or '', [
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('client_id', client.client_id),
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('client_secret', client.client_secret or '')
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])
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if 'Content-Length' in headers:
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headers['Content-Length'] = str(len(body))
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return uri, headers, body
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def encode_none(client, method, uri, headers, body):
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if method == 'GET':
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uri = add_params_to_uri(uri, [('client_id', client.client_id)])
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return uri, headers, body
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body = add_params_to_qs(body, [('client_id', client.client_id)])
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if 'Content-Length' in headers:
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headers['Content-Length'] = str(len(body))
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return uri, headers, body
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class ClientAuth:
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"""Attaches OAuth Client Information to HTTP requests.
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:param client_id: Client ID, which you get from client registration.
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:param client_secret: Client Secret, which you get from registration.
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:param auth_method: Client auth method for token endpoint. The supported
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methods for now:
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* client_secret_basic (default)
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* client_secret_post
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* none
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"""
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DEFAULT_AUTH_METHODS = {
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'client_secret_basic': encode_client_secret_basic,
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'client_secret_post': encode_client_secret_post,
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'none': encode_none,
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}
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def __init__(self, client_id, client_secret, auth_method=None):
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if auth_method is None:
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auth_method = 'client_secret_basic'
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self.client_id = client_id
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self.client_secret = client_secret
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if auth_method in self.DEFAULT_AUTH_METHODS:
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auth_method = self.DEFAULT_AUTH_METHODS[auth_method]
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self.auth_method = auth_method
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def prepare(self, method, uri, headers, body):
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return self.auth_method(self, method, uri, headers, body)
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class TokenAuth:
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"""Attach token information to HTTP requests.
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:param token: A dict or OAuth2Token instance of an OAuth 2.0 token
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:param token_placement: The placement of the token, default is ``header``,
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available choices:
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* header (default)
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* body
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* uri
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"""
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DEFAULT_TOKEN_TYPE = 'bearer'
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SIGN_METHODS = {
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'bearer': add_bearer_token
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}
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def __init__(self, token, token_placement='header', client=None):
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self.token = OAuth2Token.from_dict(token)
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self.token_placement = token_placement
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self.client = client
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self.hooks = set()
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def set_token(self, token):
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self.token = OAuth2Token.from_dict(token)
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def prepare(self, uri, headers, body):
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token_type = self.token.get('token_type', self.DEFAULT_TOKEN_TYPE)
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sign = self.SIGN_METHODS[token_type.lower()]
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uri, headers, body = sign(
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self.token['access_token'],
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uri, headers, body,
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self.token_placement)
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for hook in self.hooks:
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uri, headers, body = hook(uri, headers, body)
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return uri, headers, body
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