93 lines
		
	
	
		
			3.6 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			93 lines
		
	
	
		
			3.6 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
"""passbook OAuth2 OpenID Userinfo views"""
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from typing import Any, Dict, List
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from django.http import HttpRequest, HttpResponse
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from django.utils.translation import gettext_lazy as _
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from django.views import View
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from structlog import get_logger
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from passbook.providers.oauth2.constants import (
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    SCOPE_GITHUB_ORG_READ,
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    SCOPE_GITHUB_USER,
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    SCOPE_GITHUB_USER_EMAIL,
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    SCOPE_GITHUB_USER_READ,
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)
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from passbook.providers.oauth2.models import RefreshToken, ScopeMapping
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from passbook.providers.oauth2.utils import TokenResponse, cors_allow_any
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LOGGER = get_logger()
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class UserInfoView(View):
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    """Create a dictionary with all the requested claims about the End-User.
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    See: http://openid.net/specs/openid-connect-core-1_0.html#UserInfoResponse"""
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    def get_scope_descriptions(self, scopes: List[str]) -> Dict[str, str]:
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        """Get a list of all Scopes's descriptions"""
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        scope_descriptions = {}
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        for scope in ScopeMapping.objects.filter(scope_name__in=scopes).order_by(
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            "scope_name"
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        ):
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            if scope.description != "":
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                scope_descriptions[scope.scope_name] = scope.description
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        # GitHub Compatibility Scopes are handeled differently, since they required custom paths
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        # Hence they don't exist as Scope objects
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        github_scope_map = {
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            SCOPE_GITHUB_USER: _("GitHub Compatibility: Access your User Information"),
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            SCOPE_GITHUB_USER_READ: _(
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                "GitHub Compatibility: Access your User Information"
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            ),
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            SCOPE_GITHUB_USER_EMAIL: _(
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                "GitHub Compatibility: Access you Email addresses"
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            ),
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            SCOPE_GITHUB_ORG_READ: _("GitHub Compatibility: Access your Groups"),
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        }
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        for scope in scopes:
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            if scope in github_scope_map:
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                scope_descriptions[scope] = github_scope_map[scope]
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        return scope_descriptions
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    def get_claims(self, token: RefreshToken) -> Dict[str, Any]:
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        """Get a dictionary of claims from scopes that the token
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        requires and are assigned to the provider."""
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        scopes_from_client = token.scope
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        final_claims = {}
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        for scope in ScopeMapping.objects.filter(
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            provider=token.provider, scope_name__in=scopes_from_client
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        ).order_by("scope_name"):
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            value = scope.evaluate(
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                user=token.user,
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                request=self.request,
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                provider=token.provider,
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                token=token,
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            )
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            if value is None:
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                continue
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            if not isinstance(value, dict):
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                LOGGER.warning(
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                    "Scope returned a non-dict value, ignoring",
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                    scope=scope,
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                    value=value,
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                )
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                continue
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            LOGGER.debug("updated scope", scope=scope)
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            final_claims.update(value)
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        return final_claims
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    def options(self, request: HttpRequest) -> HttpResponse:
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        return cors_allow_any(self.request, TokenResponse({}))
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    def get(self, request: HttpRequest, **kwargs) -> HttpResponse:
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        """Handle GET Requests for UserInfo"""
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        token: RefreshToken = kwargs["token"]
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        claims = self.get_claims(token)
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        claims["sub"] = token.id_token.sub
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        response = TokenResponse(claims)
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        cors_allow_any(self.request, response)
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        return response
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    def post(self, request: HttpRequest, **kwargs) -> HttpResponse:
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        """POST Requests behave the same as GET Requests, so the get handler is called here"""
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        return self.get(request, **kwargs)
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