oauthlib · auvipy · Aug 24, 2023 · Aug 24, 2023 · Aug 24, 2023
diff --git a/.github/workflows/lint_python.yml b/.github/workflows/lint_python.yml
@@ -8,20 +8,15 @@ jobs:
       - uses: actions/setup-python@v4
         with:
           python-version: 3.x
+          check-latest: true
       - run: pip install --upgrade pip setuptools wheel
-      - run: pip install bandit black codespell flake8 flake8-2020 flake8-bugbear
-                         flake8-comprehensions isort mypy pytest pyupgrade safety
-      - run: bandit --recursive --skip B101,B105,B106,B107,B324 .
+      - run: pip install black codespell mypy pytest ruff safety
+      - run: ruff --format=github .
       - run: black --check . || true
       - run: codespell  # --ignore-words-list="" --skip="*.css,*.js,*.lock"
-      - run: flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
-      - run: flake8 . --count --exit-zero --max-complexity=10 --max-line-length=88
-                      --show-source --statistics
-      - run: isort --check-only --profile black . || true
       - run: pip install -r requirements-test.txt
       - run: pip install --editable .
       - run: mkdir --parents --verbose .mypy_cache
       - run: mypy --ignore-missing-imports --install-types --non-interactive . || true
       - run: pytest
-      - run: shopt -s globstar && pyupgrade --py37-plus **/*.py || true
       - run: safety check
diff --git a/docs/conf.py b/docs/conf.py
@@ -54,7 +54,7 @@
 #
 # The short X.Y version.
 
-from oauthlib import __version__ as v
+from oauthlib import __version__ as v  # noqa: E402
 version = v[:3]
 # The full version, including alpha/beta/rc tags.
 release = v

diff --git a/examples/__init__.py b/examples/__init__.py
diff --git a/oauthlib/__init__.py b/oauthlib/__init__.py
@@ -19,16 +19,16 @@
 _DEBUG = False
 
 def set_debug(debug_val):
-	"""Set value of debug flag
-	
+    """Set value of debug flag
+
     :param debug_val: Value to set. Must be a bool value.
-	"""
-	global _DEBUG
-	_DEBUG = debug_val
+    """
+    global _DEBUG  # noqa: PLW0603
+    _DEBUG = debug_val
 
 def get_debug():
-	"""Get debug mode value. 
-	
-	:return: `True` if debug mode is on, `False` otherwise
-	"""
-	return _DEBUG	
+    """Get debug mode value.
+
+    :return: `True` if debug mode is on, `False` otherwise
+    """
+    return _DEBUG
diff --git a/oauthlib/common.py b/oauthlib/common.py
@@ -34,7 +34,7 @@
 
 always_safe = ('ABCDEFGHIJKLMNOPQRSTUVWXYZ'
                'abcdefghijklmnopqrstuvwxyz'
-               '0123456789' '_.-')
+               '0123456789_.-')
 
 log = logging.getLogger('oauthlib')
 
@@ -346,7 +346,8 @@ class Request:
     def __init__(self, uri, http_method='GET', body=None, headers=None,
                  encoding='utf-8'):
         # Convert to unicode using encoding if given, else assume unicode
-        encode = lambda x: to_unicode(x, encoding) if encoding else x
+        def encode(x):
+            return to_unicode(x, encoding) if encoding else x
 
         self.uri = encode(uri)
         self.http_method = encode(http_method)

diff --git a/oauthlib/oauth1/rfc5849/__init__.py b/oauthlib/oauth1/rfc5849/__init__.py
@@ -121,7 +121,8 @@ def __init__(self, client_key,
         :param timestamp: Use this timestamp instead of using current. (Mainly for testing)
         """
         # Convert to unicode using encoding if given, else assume unicode
-        encode = lambda x: to_unicode(x, encoding) if encoding else x
+        def encode(x):
+            return to_unicode(x, encoding) if encoding else x
 
         self.client_key = encode(client_key)
         self.client_secret = encode(client_secret)
@@ -219,7 +220,7 @@ def get_oauth_params(self, request):
         content_type = request.headers.get('Content-Type', None)
         content_type_eligible = content_type and content_type.find('application/x-www-form-urlencoded') < 0
         if request.body is not None and content_type_eligible:
-            params.append(('oauth_body_hash', base64.b64encode(hashlib.sha1(request.body.encode('utf-8')).digest()).decode('utf-8')))
+            params.append(('oauth_body_hash', base64.b64encode(hashlib.sha1(request.body.encode('utf-8')).digest()).decode('utf-8')))  # noqa: S324
 
         return params
 

diff --git a/oauthlib/oauth1/rfc5849/endpoints/base.py b/oauthlib/oauth1/rfc5849/endpoints/base.py
@@ -69,12 +69,10 @@ def _get_signature_type_and_params(self, request):
     def _create_request(self, uri, http_method, body, headers):
         # Only include body data from x-www-form-urlencoded requests
         headers = CaseInsensitiveDict(headers or {})
-        if ("Content-Type" in headers and
-                CONTENT_TYPE_FORM_URLENCODED in headers["Content-Type"]):
+        if "Content-Type" in headers and CONTENT_TYPE_FORM_URLENCODED in headers["Content-Type"]:  # noqa: SIM108
             request = Request(uri, http_method, body, headers)
         else:
             request = Request(uri, http_method, '', headers)
-
         signature_type, params, oauth_params = (
             self._get_signature_type_and_params(request))
 
@@ -129,8 +127,7 @@ def _check_mandatory_parameters(self, request):
         # Considerations section (`Section 4`_) before deciding on which
         # method to support.
         # .. _`Section 4`: https://tools.ietf.org/html/rfc5849#section-4
-        if (not request.signature_method in
-                self.request_validator.allowed_signature_methods):
+        if (request.signature_method not in self.request_validator.allowed_signature_methods):
             raise errors.InvalidSignatureMethodError(
                 description="Invalid signature, {} not in {!r}.".format(
                     request.signature_method,
@@ -180,9 +177,7 @@ def _check_mandatory_parameters(self, request):
 
     def _check_signature(self, request, is_token_request=False):
         # ---- RSA Signature verification ----
-        if request.signature_method == SIGNATURE_RSA_SHA1 or \
-           request.signature_method == SIGNATURE_RSA_SHA256 or \
-           request.signature_method == SIGNATURE_RSA_SHA512:
+        if request.signature_method in {SIGNATURE_RSA_SHA1, SIGNATURE_RSA_SHA256, SIGNATURE_RSA_SHA512}:
             # RSA-based signature method
 
             # The server verifies the signature per `[RFC3447] section 8.2.2`_

diff --git a/oauthlib/oauth1/rfc5849/signature.py b/oauthlib/oauth1/rfc5849/signature.py
@@ -45,6 +45,7 @@
 from oauthlib.common import extract_params, safe_string_equals, urldecode
 
 from . import utils
+import contextlib
 
 log = logging.getLogger(__name__)
 
@@ -188,10 +189,9 @@ def base_string_uri(uri: str, host: str = None) -> str:
         raise ValueError('missing host')
 
     # NOTE: Try guessing if we're dealing with IP or hostname
-    try:
+    with contextlib.suppress(ValueError):
         hostname = ipaddress.ip_address(hostname)
-    except ValueError:
-        pass
+
 
     if isinstance(hostname, ipaddress.IPv6Address):
         hostname = f"[{hostname}]"

diff --git a/oauthlib/oauth1/rfc5849/utils.py b/oauthlib/oauth1/rfc5849/utils.py
@@ -30,7 +30,8 @@ def wrapper(params, *args, **kwargs):
 
 def filter_oauth_params(params):
     """Removes all non oauth parameters from a dict or a list of params."""
-    is_oauth = lambda kv: kv[0].startswith("oauth_")
+    def is_oauth(kv):
+        return kv[0].startswith('oauth_')
     if isinstance(params, dict):
         return list(filter(is_oauth, list(params.items())))
     else:
@@ -59,7 +60,7 @@ def unescape(u):
     return unquote(u)
 
 
-def parse_keqv_list(l):
+def parse_keqv_list(l):  # noqa: E741
     """A unicode-safe version of urllib2.parse_keqv_list"""
     # With Python 2.6, parse_http_list handles unicode fine
     return urllib2.parse_keqv_list(l)

diff --git a/oauthlib/oauth2/rfc6749/clients/base.py b/oauthlib/oauth2/rfc6749/clients/base.py
@@ -207,7 +207,7 @@ def add_token(self, uri, http_method='GET', body=None, headers=None,
 
         case_insensitive_token_types = {
             k.lower(): v for k, v in self.token_types.items()}
-        if not self.token_type.lower() in case_insensitive_token_types:
+        if self.token_type.lower() not in case_insensitive_token_types:
             raise ValueError("Unsupported token type: %s" % self.token_type)
 
         if not (self.access_token or self.token.get('access_token')):
@@ -466,7 +466,7 @@ def _add_bearer_token(self, uri, http_method='GET', body=None,
         return uri, headers, body
 
     def create_code_verifier(self, length):
-        """Create PKCE **code_verifier** used in computing **code_challenge**. 
+        """Create PKCE **code_verifier** used in computing **code_challenge**.
         See `RFC7636 Section 4.1`_
 
         :param length: REQUIRED. The length of the code_verifier.
@@ -530,10 +530,10 @@ def create_code_challenge(self, code_verifier, code_challenge_method=None):
         """
         code_challenge = None
 
-        if code_verifier == None:
+        if code_verifier is None:
             raise ValueError("Invalid code_verifier")
 
-        if code_challenge_method == None:
+        if code_challenge_method is None:
             code_challenge_method = "plain"
             self.code_challenge_method = code_challenge_method
             code_challenge = code_verifier

diff --git a/oauthlib/oauth2/rfc6749/clients/mobile_application.py b/oauthlib/oauth2/rfc6749/clients/mobile_application.py
@@ -43,7 +43,7 @@ class MobileApplicationClient(Client):
     redirection URI, it may be exposed to the resource owner and other
     applications residing on the same device.
     """
-    
+
     response_type = 'token'
 
     def prepare_request_uri(self, uri, redirect_uri=None, scope=None,

diff --git a/oauthlib/oauth2/rfc6749/clients/web_application.py b/oauthlib/oauth2/rfc6749/clients/web_application.py
@@ -33,7 +33,7 @@ class WebApplicationClient(Client):
     browser) and capable of receiving incoming requests (via redirection)
     from the authorization server.
     """
-    
+
     grant_type = 'authorization_code'
 
     def __init__(self, client_id, code=None, **kwargs):
@@ -62,8 +62,8 @@ def prepare_request_uri(self, uri, redirect_uri=None, scope=None,
                         to the client.  The parameter SHOULD be used for preventing
                         cross-site request forgery as described in `Section 10.12`_.
 
-        :param code_challenge: OPTIONAL. PKCE parameter. REQUIRED if PKCE is enforced. 
-                        A challenge derived from the code_verifier that is sent in the 
+        :param code_challenge: OPTIONAL. PKCE parameter. REQUIRED if PKCE is enforced.
+                        A challenge derived from the code_verifier that is sent in the
                         authorization request, to be verified against later.
 
         :param code_challenge_method: OPTIONAL. PKCE parameter. A method that was used to derive code challenge.

diff --git a/oauthlib/oauth2/rfc6749/endpoints/base.py b/oauthlib/oauth2/rfc6749/endpoints/base.py
@@ -32,15 +32,15 @@ def valid_request_methods(self, valid_request_methods):
         if valid_request_methods is not None:
             valid_request_methods = [x.upper() for x in valid_request_methods]
         self._valid_request_methods = valid_request_methods
-    
+
 
     @property
     def available(self):
         return self._available
 
     @available.setter
     def available(self, available):
-        self._available = available       
+        self._available = available
 
     @property
     def catch_errors(self):

diff --git a/oauthlib/oauth2/rfc6749/endpoints/introspect.py b/oauthlib/oauth2/rfc6749/endpoints/introspect.py
@@ -74,7 +74,7 @@ def create_introspect_response(self, uri, http_method='POST', body=None,
             request
         )
         if claims is None:
-            return resp_headers, json.dumps(dict(active=False)), 200
+            return resp_headers, json.dumps({'active': False}), 200
         if "active" in claims:
             claims.pop("active")
         return resp_headers, json.dumps(dict(active=True, **claims)), 200

diff --git a/oauthlib/oauth2/rfc6749/endpoints/metadata.py b/oauthlib/oauth2/rfc6749/endpoints/metadata.py
@@ -38,9 +38,9 @@ class MetadataEndpoint(BaseEndpoint):
    """
 
     def __init__(self, endpoints, claims={}, raise_errors=True):
-        assert isinstance(claims, dict)
+        assert isinstance(claims, dict)  # noqa: S101
         for endpoint in endpoints:
-            assert isinstance(endpoint, BaseEndpoint)
+            assert isinstance(endpoint, BaseEndpoint)  # noqa: S101
 
         BaseEndpoint.__init__(self)
         self.raise_errors = raise_errors

diff --git a/oauthlib/oauth2/rfc6749/errors.py b/oauthlib/oauth2/rfc6749/errors.py
@@ -150,7 +150,6 @@ class FatalClientError(OAuth2Error):
 
     Instead the user should be informed of the error by the provider itself.
     """
-    pass
 
 
 class InvalidRequestFatalError(FatalClientError):

diff --git a/oauthlib/oauth2/rfc6749/grant_types/authorization_code.py b/oauthlib/oauth2/rfc6749/grant_types/authorization_code.py
@@ -387,7 +387,7 @@ def validate_authorization_request(self, request):
             raise errors.MissingResponseTypeError(request=request)
         # Value MUST be set to "code" or one of the OpenID authorization code including
         # response_types "code token", "code id_token", "code token id_token"
-        elif not 'code' in request.response_type and request.response_type != 'none':
+        elif 'code' not in request.response_type and request.response_type != 'none':
             raise errors.UnsupportedResponseTypeError(request=request)
 
         if not self.request_validator.validate_response_type(request.client_id,
@@ -400,9 +400,8 @@ def validate_authorization_request(self, request):
 
         # OPTIONAL. Validate PKCE request or reply with "error"/"invalid_request"
         # https://tools.ietf.org/html/rfc6749#section-4.4.1
-        if self.request_validator.is_pkce_required(request.client_id, request) is True:
-            if request.code_challenge is None:
-                raise errors.MissingCodeChallengeError(request=request)
+        if self.request_validator.is_pkce_required(request.client_id, request) is True and request.code_challenge is None:
+            raise errors.MissingCodeChallengeError(request=request)
 
         if request.code_challenge is not None:
             request_info["code_challenge"] = request.code_challenge

diff --git a/oauthlib/oauth2/rfc6749/grant_types/base.py b/oauthlib/oauth2/rfc6749/grant_types/base.py
@@ -143,7 +143,7 @@ def add_token(self, token, token_handler, request):
         :type request: oauthlib.common.Request
         """
         # Only add a hybrid access token on auth step if asked for
-        if not request.response_type in ["token", "code token", "id_token token", "code id_token token"]:
+        if request.response_type not in ["token", "code token", "id_token token", "code id_token token"]:
             return token
 
         token.update(token_handler.create_token(request, refresh_token=False))
@@ -199,10 +199,7 @@ def prepare_authorization_response(self, request, token, headers, body, status):
 
         if request.response_type == 'none':
             state = token.get('state', None)
-            if state:
-                token_items = [('state', state)]
-            else:
-                token_items = []
+            token_items = [('state', state)] if state else []
 
         if request.response_mode == 'query':
             headers['Location'] = add_params_to_uri(

diff --git a/oauthlib/oauth2/rfc6749/grant_types/client_credentials.py b/oauthlib/oauth2/rfc6749/grant_types/client_credentials.py
@@ -107,11 +107,10 @@ def validate_token_request(self, request):
         if not self.request_validator.authenticate_client(request):
             log.debug('Client authentication failed, %r.', request)
             raise errors.InvalidClientError(request=request)
-        else:
-            if not hasattr(request.client, 'client_id'):
-                raise NotImplementedError('Authenticate client must set the '
-                                          'request.client.client_id attribute '
-                                          'in authenticate_client.')
+        elif not hasattr(request.client, 'client_id'):
+            raise NotImplementedError('Authenticate client must set the '
+                                      'request.client.client_id attribute '
+                                      'in authenticate_client.')
         # Ensure client is authorized use of this grant type
         self.validate_grant_type(request)
 

diff --git a/oauthlib/oauth2/rfc6749/grant_types/implicit.py b/oauthlib/oauth2/rfc6749/grant_types/implicit.py
@@ -233,10 +233,7 @@ def create_token_response(self, request, token_handler):
         # In OIDC implicit flow it is possible to have a request_type that does not include the access_token!
         # "id_token token" - return the access token and the id token
         # "id_token" - don't return the access token
-        if "token" in request.response_type.split():
-            token = token_handler.create_token(request, refresh_token=False)
-        else:
-            token = {}
+        token = token_handler.create_token(request, refresh_token=False) if 'token' in request.response_type.split() else {}
 
         if request.state is not None:
             token['state'] = request.state

diff --git a/oauthlib/oauth2/rfc6749/grant_types/resource_owner_password_credentials.py b/oauthlib/oauth2/rfc6749/grant_types/resource_owner_password_credentials.py
@@ -180,12 +180,11 @@ def validate_token_request(self, request):
                                                     request.password, request.client, request):
             raise errors.InvalidGrantError(
                 'Invalid credentials given.', request=request)
-        else:
-            if not hasattr(request.client, 'client_id'):
-                raise NotImplementedError(
-                    'Validate user must set the '
-                    'request.client.client_id attribute '
-                    'in authenticate_client.')
+        elif not hasattr(request.client, 'client_id'):
+            raise NotImplementedError(
+                'Validate user must set the '
+                'request.client.client_id attribute '
+                'in authenticate_client.')
         log.debug('Authorizing access to user %r.', request.user)
 
         # Ensure client is authorized use of this grant type
-Original file line number
+Diff line change
@@ Expand Up / @@ -150,7 +150,6 @@ class FatalClientError(OAuth2Error): @@
         Instead the user should be informed of the error by the provider itself.
         """
-        pass
     class InvalidRequestFatalError(FatalClientError):
@@ Expand Down @@