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Iliyan Angelov
2025-12-01 06:50:10 +02:00
parent 91f51bc6fe
commit 62c1fe5951
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Backend/venv/lib/python3.12/site-packages/authlib/oauth2/rfc6749/parameters.py Normal file
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from authlib.common.encoding import to_unicode
from authlib.common.urls import add_params_to_qs
from authlib.common.urls import add_params_to_uri
from authlib.common.urls import urlparse
from .errors import MismatchingStateException
from .errors import MissingCodeException
from .errors import MissingTokenException
from .errors import MissingTokenTypeException
from .util import list_to_scope
def prepare_grant_uri(
uri, client_id, response_type, redirect_uri=None, scope=None, state=None, **kwargs
):
"""Prepare the authorization grant request URI.
The client constructs the request URI by adding the following
parameters to the query component of the authorization endpoint URI
using the ``application/x-www-form-urlencoded`` format:
:param uri: The authorize endpoint to fetch "code" or "token".
:param client_id: The client identifier as described in `Section 2.2`_.
:param response_type: To indicate which OAuth 2 grant/flow is required,
"code" and "token".
:param redirect_uri: The client provided URI to redirect back to after
authorization as described in `Section 3.1.2`_.
:param scope: The scope of the access request as described by
`Section 3.3`_.
:param state: An opaque value used by the client to maintain
state between the request and callback. The authorization
server includes this value when redirecting the user-agent
back to the client. The parameter SHOULD be used for
preventing cross-site request forgery as described in
`Section 10.12`_.
:param kwargs: Extra arguments to embed in the grant/authorization URL.
An example of an authorization code grant authorization URL::
/authorize?response_type=code&client_id=s6BhdRkqt3&state=xyz
&redirect_uri=https%3A%2F%2Fclient%2Eexample%2Ecom%2Fcb
.. _`Section 2.2`: https://tools.ietf.org/html/rfc6749#section-2.2
.. _`Section 3.1.2`: https://tools.ietf.org/html/rfc6749#section-3.1.2
.. _`Section 3.3`: https://tools.ietf.org/html/rfc6749#section-3.3
.. _`section 10.12`: https://tools.ietf.org/html/rfc6749#section-10.12
"""
params = [("response_type", response_type), ("client_id", client_id)]
if redirect_uri:
params.append(("redirect_uri", redirect_uri))
if scope:
params.append(("scope", list_to_scope(scope)))
if state:
params.append(("state", state))
for k, value in kwargs.items():
if value is not None:
if isinstance(value, (list, tuple)):
for v in value:
if v is not None:
params.append((to_unicode(k), v))
else:
params.append((to_unicode(k), value))
return add_params_to_uri(uri, params)
def prepare_token_request(grant_type, body="", redirect_uri=None, **kwargs):
"""Prepare the access token request. Per `Section 4.1.3`_.
The client makes a request to the token endpoint by adding the
following parameters using the ``application/x-www-form-urlencoded``
format in the HTTP request entity-body:
:param grant_type: To indicate grant type being used, i.e. "password",
"authorization_code" or "client_credentials".
:param body: Existing request body to embed parameters in.
:param redirect_uri: If the "redirect_uri" parameter was included in the
authorization request as described in
`Section 4.1.1`_, and their values MUST be identical.
:param kwargs: Extra arguments to embed in the request body.
An example of an authorization code token request body::
grant_type=authorization_code&code=SplxlOBeZQQYbYS6WxSbIA
&redirect_uri=https%3A%2F%2Fclient%2Eexample%2Ecom%2Fcb
.. _`Section 4.1.1`: https://tools.ietf.org/html/rfc6749#section-4.1.1
.. _`Section 4.1.3`: https://tools.ietf.org/html/rfc6749#section-4.1.3
"""
params = [("grant_type", grant_type)]
if redirect_uri:
params.append(("redirect_uri", redirect_uri))
if "scope" in kwargs:
kwargs["scope"] = list_to_scope(kwargs["scope"])
if grant_type == "authorization_code" and kwargs.get("code") is None:
raise MissingCodeException()
for k in kwargs:
if kwargs[k]:
params.append((to_unicode(k), kwargs[k]))
return add_params_to_qs(body, params)
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
"""
query = urlparse.urlparse(uri).query
params = dict(urlparse.parse_qsl(query))
if "code" not in params:
raise MissingCodeException()
params_state = params.get("state")
if state and params_state != state:
raise MismatchingStateException()
return params
def parse_implicit_response(uri, state=None):
"""Parse the implicit token response URI into a dict.
If the resource owner grants the access request, the authorization
server issues an access token and delivers it to the client by adding
the following parameters to the fragment component of the redirection
URI using the ``application/x-www-form-urlencoded`` format:
**access_token**
REQUIRED. The access token issued by the authorization server.
**token_type**
REQUIRED. The type of the token issued as described in
Section 7.1. Value is case insensitive.
**expires_in**
RECOMMENDED. The lifetime in seconds of the access token. For
example, the value "3600" denotes that the access token will
expire in one hour from the time the response was generated.
If omitted, the authorization server SHOULD provide the
expiration time via other means or document the default value.
**scope**
OPTIONAL, if identical to the scope requested by the client,
otherwise REQUIRED. The scope of the access token as described
by Section 3.3.
**state**
REQUIRED if the "state" parameter was present in the client
authorization request. The exact value received from the
client.
Similar to the authorization code response, but with a full token provided
in the URL fragment:
.. code-block:: http
HTTP/1.1 302 Found
Location: http://example.com/cb#access_token=2YotnFZFEjr1zCsicMWpAA
&state=xyz&token_type=example&expires_in=3600
"""
fragment = urlparse.urlparse(uri).fragment
params = dict(urlparse.parse_qsl(fragment, keep_blank_values=True))
if "access_token" not in params:
raise MissingTokenException()
if "token_type" not in params:
raise MissingTokenTypeException()
if state and params.get("state", None) != state:
raise MismatchingStateException()
return params