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117 lines
4.4 KiB
Python
117 lines
4.4 KiB
Python
# -*- coding: utf-8 -*-
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"""
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oauthlib.oauth2.rfc6749
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~~~~~~~~~~~~~~~~~~~~~~~
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This module is an implementation of various logic needed
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for consuming and providing OAuth 2.0 RFC6749.
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"""
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from __future__ import absolute_import, unicode_literals
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import logging
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from oauthlib.common import Request
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from oauthlib.oauth2.rfc6749 import utils
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from .base import BaseEndpoint, catch_errors_and_unavailability
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log = logging.getLogger(__name__)
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class TokenEndpoint(BaseEndpoint):
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"""Token issuing endpoint.
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The token endpoint is used by the client to obtain an access token by
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presenting its authorization grant or refresh token. The token
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endpoint is used with every authorization grant except for the
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implicit grant type (since an access token is issued directly).
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The means through which the client obtains the location of the token
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endpoint are beyond the scope of this specification, but the location
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is typically provided in the service documentation.
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The endpoint URI MAY include an "application/x-www-form-urlencoded"
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formatted (per `Appendix B`_) query component,
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which MUST be retained when adding additional query parameters. The
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endpoint URI MUST NOT include a fragment component::
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https://example.com/path?query=component # OK
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https://example.com/path?query=component#fragment # Not OK
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Since requests to the authorization endpoint result in user
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Since requests to the token endpoint result in the transmission of
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clear-text credentials (in the HTTP request and response), the
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authorization server MUST require the use of TLS as described in
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Section 1.6 when sending requests to the token endpoint::
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# We will deny any request which URI schema is not with https
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The client MUST use the HTTP "POST" method when making access token
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requests::
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# HTTP method is currently not enforced
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Parameters sent without a value MUST be treated as if they were
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omitted from the request. The authorization server MUST ignore
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unrecognized request parameters. Request and response parameters
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MUST NOT be included more than once::
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# Delegated to each grant type.
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.. _`Appendix B`: https://tools.ietf.org/html/rfc6749#appendix-B
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"""
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def __init__(self, default_grant_type, default_token_type, grant_types):
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BaseEndpoint.__init__(self)
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self._grant_types = grant_types
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self._default_token_type = default_token_type
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self._default_grant_type = default_grant_type
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@property
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def grant_types(self):
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return self._grant_types
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@property
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def default_grant_type(self):
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return self._default_grant_type
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@property
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def default_grant_type_handler(self):
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return self.grant_types.get(self.default_grant_type)
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@property
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def default_token_type(self):
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return self._default_token_type
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@catch_errors_and_unavailability
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def create_token_response(self, uri, http_method='GET', body=None,
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headers=None, credentials=None, grant_type_for_scope=None,
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claims=None):
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"""Extract grant_type and route to the designated handler."""
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request = Request(
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uri, http_method=http_method, body=body, headers=headers)
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# 'scope' is an allowed Token Request param in both the "Resource Owner Password Credentials Grant"
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# and "Client Credentials Grant" flows
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# https://tools.ietf.org/html/rfc6749#section-4.3.2
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# https://tools.ietf.org/html/rfc6749#section-4.4.2
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request.scopes = utils.scope_to_list(request.scope)
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request.extra_credentials = credentials
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if grant_type_for_scope:
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request.grant_type = grant_type_for_scope
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# OpenID Connect claims, if provided. The server using oauthlib might choose
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# to implement the claims parameter of the Authorization Request. In this case
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# it should retrieve those claims and pass them via the claims argument here,
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# as a dict.
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if claims:
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request.claims = claims
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grant_type_handler = self.grant_types.get(request.grant_type,
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self.default_grant_type_handler)
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log.debug('Dispatching grant_type %s request to %r.',
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request.grant_type, grant_type_handler)
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return grant_type_handler.create_token_response(
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request, self.default_token_type)
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