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# coding=utf-8 """ oauthlib.oauth2.rfc6749.errors ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Error used both by OAuth 2 clients and providers to represent the spec defined error responses for all four core grant types. """ from __future__ import unicode_literals import json from oauthlib.common import add_params_to_uri, urlencode class OAuth2Error(Exception): error = None status_code = 400 description = '' def __init__(self, description=None, uri=None, state=None, status_code=None, request=None): """ description: A human-readable ASCII [USASCII] text providing additional information, used to assist the client developer in understanding the error that occurred. Values for the "error_description" parameter MUST NOT include characters outside the set x20-21 / x23-5B / x5D-7E. uri: A URI identifying a human-readable web page with information about the error, used to provide the client developer with additional information about the error. Values for the "error_uri" parameter MUST conform to the URI- Reference syntax, and thus MUST NOT include characters outside the set x21 / x23-5B / x5D-7E. state: A CSRF protection value received from the client. request: Oauthlib Request object """ if description is not None: self.description = description message = '(%s) %s' % (self.error, self.description) if request: message += ' ' + repr(request) super(OAuth2Error, self).__init__(message) self.uri = uri self.state = state if status_code: self.status_code = status_code if request: self.redirect_uri = request.redirect_uri self.client_id = request.client_id self.scopes = request.scopes self.response_type = request.response_type self.response_mode = request.response_mode self.grant_type = request.grant_type if not state: self.state = request.state else: self.redirect_uri = None self.client_id = None self.scopes = None self.response_type = None self.response_mode = None self.grant_type = None def in_uri(self, uri): fragment = self.response_mode == "fragment" return add_params_to_uri(uri, self.twotuples, fragment) @property def twotuples(self): error = [('error', self.error)] if self.description: error.append(('error_description', self.description)) if self.uri: error.append(('error_uri', self.uri)) if self.state: error.append(('state', self.state)) return error @property def urlencoded(self): return urlencode(self.twotuples) @property def json(self): return json.dumps(dict(self.twotuples)) class TokenExpiredError(OAuth2Error): error = 'token_expired' class InsecureTransportError(OAuth2Error): error = 'insecure_transport' description = 'OAuth 2 MUST utilize https.' class MismatchingStateError(OAuth2Error): error = 'mismatching_state' description = 'CSRF Warning! State not equal in request and response.' class MissingCodeError(OAuth2Error): error = 'missing_code' class MissingTokenError(OAuth2Error): error = 'missing_token' class MissingTokenTypeError(OAuth2Error): error = 'missing_token_type' class FatalClientError(OAuth2Error): """ Errors during authorization where user should not be redirected back. If the request fails due to a missing, invalid, or mismatching redirection URI, or if the client identifier is missing or invalid, the authorization server SHOULD inform the resource owner of the error and MUST NOT automatically redirect the user-agent to the invalid redirection URI. Instead the user should be informed of the error by the provider itself. """ pass class InvalidRequestFatalError(FatalClientError): """ For fatal errors, the request is missing a required parameter, includes an invalid parameter value, includes a parameter more than once, or is otherwise malformed. """ error = 'invalid_request' class InvalidRedirectURIError(InvalidRequestFatalError): description = 'Invalid redirect URI.' class MissingRedirectURIError(InvalidRequestFatalError): description = 'Missing redirect URI.' class MismatchingRedirectURIError(InvalidRequestFatalError): description = 'Mismatching redirect URI.' class InvalidClientIdError(InvalidRequestFatalError): description = 'Invalid client_id parameter value.' class MissingClientIdError(InvalidRequestFatalError): description = 'Missing client_id parameter.' class InvalidRequestError(OAuth2Error): """ The request is missing a required parameter, includes an invalid parameter value, includes a parameter more than once, or is otherwise malformed. """ error = 'invalid_request' class MissingResponseTypeError(InvalidRequestError): description = 'Missing response_type parameter.' class AccessDeniedError(OAuth2Error): """ The resource owner or authorization server denied the request. """ error = 'access_denied' status_code = 401 class UnsupportedResponseTypeError(OAuth2Error): """ The authorization server does not support obtaining an authorization code using this method. """ error = 'unsupported_response_type' class InvalidScopeError(OAuth2Error): """ The requested scope is invalid, unknown, or malformed. """ error = 'invalid_scope' status_code = 401 class ServerError(OAuth2Error): """ The authorization server encountered an unexpected condition that prevented it from fulfilling the request. (This error code is needed because a 500 Internal Server Error HTTP status code cannot be returned to the client via a HTTP redirect.) """ error = 'server_error' class TemporarilyUnavailableError(OAuth2Error): """ The authorization server is currently unable to handle the request due to a temporary overloading or maintenance of the server. (This error code is needed because a 503 Service Unavailable HTTP status code cannot be returned to the client via a HTTP redirect.) """ error = 'temporarily_unavailable' class InvalidClientError(OAuth2Error): """ Client authentication failed (e.g. unknown client, no client authentication included, or unsupported authentication method). The authorization server MAY return an HTTP 401 (Unauthorized) status code to indicate which HTTP authentication schemes are supported. If the client attempted to authenticate via the "Authorization" request header field, the authorization server MUST respond with an HTTP 401 (Unauthorized) status code, and include the "WWW-Authenticate" response header field matching the authentication scheme used by the client. """ error = 'invalid_client' status_code = 401 class InvalidGrantError(OAuth2Error): """ The provided authorization grant (e.g. authorization code, resource owner credentials) or refresh token is invalid, expired, revoked, does not match the redirection URI used in the authorization request, or was issued to another client. """ error = 'invalid_grant' status_code = 401 class UnauthorizedClientError(OAuth2Error): """ The authenticated client is not authorized to use this authorization grant type. """ error = 'unauthorized_client' status_code = 401 class UnsupportedGrantTypeError(OAuth2Error): """ The authorization grant type is not supported by the authorization server. """ error = 'unsupported_grant_type' class UnsupportedTokenTypeError(OAuth2Error): """ The authorization server does not support the revocation of the presented token type. I.e. the client tried to revoke an access token on a server not supporting this feature. """ error = 'unsupported_token_type' class FatalOpenIDClientError(FatalClientError): pass class OpenIDClientError(OAuth2Error): pass class InteractionRequired(OpenIDClientError): """ The Authorization Server requires End-User interaction to proceed. This error MAY be returned when the prompt parameter value in the Authentication Request is none, but the Authentication Request cannot be completed without displaying a user interface for End-User interaction. """ error = 'interaction_required' status_code = 401 class LoginRequired(OpenIDClientError): """ The Authorization Server requires End-User authentication. This error MAY be returned when the prompt parameter value in the Authentication Request is none, but the Authentication Request cannot be completed without displaying a user interface for End-User authentication. """ error = 'login_required' status_code = 401 class AccountSelectionRequired(OpenIDClientError): """ The End-User is REQUIRED to select a session at the Authorization Server. The End-User MAY be authenticated at the Authorization Server with different associated accounts, but the End-User did not select a session. This error MAY be returned when the prompt parameter value in the Authentication Request is none, but the Authentication Request cannot be completed without displaying a user interface to prompt for a session to use. """ error = 'account_selection_required' class ConsentRequired(OpenIDClientError): """ The Authorization Server requires End-User consent. This error MAY be returned when the prompt parameter value in the Authentication Request is none, but the Authentication Request cannot be completed without displaying a user interface for End-User consent. """ error = 'consent_required' status_code = 401 class InvalidRequestURI(OpenIDClientError): """ The request_uri in the Authorization Request returns an error or contains invalid data. """ error = 'invalid_request_uri' description = 'The request_uri in the Authorization Request returns an ' \ 'error or contains invalid data.' class InvalidRequestObject(OpenIDClientError): """ The request parameter contains an invalid Request Object. """ error = 'invalid_request_object' description = 'The request parameter contains an invalid Request Object.' class RequestNotSupported(OpenIDClientError): """ The OP does not support use of the request parameter. """ error = 'request_not_supported' description = 'The request parameter is not supported.' class RequestURINotSupported(OpenIDClientError): """ The OP does not support use of the request_uri parameter. """ error = 'request_uri_not_supported' description = 'The request_uri parameter is not supported.' class RegistrationNotSupported(OpenIDClientError): """ The OP does not support use of the registration parameter. """ error = 'registration_not_supported' description = 'The registration parameter is not supported.' class InvalidTokenError(OAuth2Error): """ The access token provided is expired, revoked, malformed, or invalid for other reasons. The resource SHOULD respond with the HTTP 401 (Unauthorized) status code. The client MAY request a new access token and retry the protected resource request. """ error = 'invalid_token' status_code = 401 description = ("The access token provided is expired, revoked, malformed, " "or invalid for other reasons.") class InsufficientScopeError(OAuth2Error): """ The request requires higher privileges than provided by the access token. The resource server SHOULD respond with the HTTP 403 (Forbidden) status code and MAY include the "scope" attribute with the scope necessary to access the protected resource. """ error = 'insufficient_scope' status_code = 403 description = ("The request requires higher privileges than provided by " "the access token.") def raise_from_error(error, params=None): import inspect import sys kwargs = { 'description': params.get('error_description'), 'uri': params.get('error_uri'), 'state': params.get('state') } for _, cls in inspect.getmembers(sys.modules[__name__], inspect.isclass): if cls.error == error: raise cls(**kwargs)

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