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sources/oauth: fix UserOAuthSourceConnection not being assigned to user after enrollment 

sources/oauth: separate handle_new_connection into handle_existing_user_link and handle_enroll
This commit is contained in:
Jens Langhammer 2020-07-09 23:37:13 +02:00
parent c6d8bae147
commit 4caa4be476
4 changed files with 101 additions and 44 deletions
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6
e2e/test_sources_oauth.py
View File

@ -16,6 +16,7 @@ from passbook.flows.models import Flow
from passbook.sources.oauth.models import OAuthSource
TOKEN_URL = "http://127.0.0.1:5556/dex/token"
CONFIG_PATH = "/tmp/dex.yml"
class TestSourceOAuth(SeleniumTestCase):
@ -60,8 +61,7 @@ class TestSourceOAuth(SeleniumTestCase):
"storage": {"config": {"file": "/tmp/dex.db"}, "type": "sqlite3"},
"web": {"http": "0.0.0.0:5556"},
}
config_file = "./e2e/dex/config-dev.yaml"
with open(config_file, "w+") as _file:
with open(CONFIG_PATH, "w+") as _file:
safe_dump(config, _file)
def setup_client(self) -> Container:
@ -80,7 +80,7 @@ class TestSourceOAuth(SeleniumTestCase):
start_period=1 * 100 * 1000000,
),
volumes={
abspath("./e2e/dex/config-dev.yaml"): {
abspath(CONFIG_PATH): {
"bind": "/config.yml",
"mode": "ro",
}

9
passbook/flows/models.py
View File

@ -1,5 +1,5 @@
"""Flow models"""
from typing import Callable, Optional
from typing import TYPE_CHECKING, Optional, Type
from uuid import uuid4
from django.db import models
@ -12,6 +12,9 @@ from passbook.core.types import UIUserSettings
from passbook.lib.utils.reflection import class_to_path
from passbook.policies.models import PolicyBindingModel
if TYPE_CHECKING:
from passbook.flows.stage import StageView
LOGGER = get_logger()
@ -57,9 +60,9 @@ class Stage(models.Model):
return f"Stage {self.name}"
def in_memory_stage(_type: Callable) -> Stage:
def in_memory_stage(view: Type["StageView"]) -> Stage:
"""Creates an in-memory stage instance, based on a `_type` as view."""
class_path = class_to_path(_type)
class_path = class_to_path(view)
stage = Stage()
stage.type = class_path
return stage

68
passbook/sources/oauth/views/callback.py
View File

@ -12,7 +12,7 @@ from structlog import get_logger
from passbook.audit.models import Event, EventAction
from passbook.core.models import User
from passbook.flows.models import Flow
from passbook.flows.models import Flow, in_memory_stage
from passbook.flows.planner import (
PLAN_CONTEXT_PENDING_USER,
PLAN_CONTEXT_SSO,
@ -24,6 +24,10 @@ from passbook.policies.utils import delete_none_keys
from passbook.sources.oauth.auth import AuthorizedServiceBackend
from passbook.sources.oauth.models import OAuthSource, UserOAuthSourceConnection
from passbook.sources.oauth.views.base import OAuthClientMixin
from passbook.sources.oauth.views.flows import (
PLAN_CONTEXT_SOURCES_OAUTH_ACCESS,
PostUserEnrollmentStage,
)
from passbook.stages.password.stage import PLAN_CONTEXT_AUTHENTICATION_BACKEND
from passbook.stages.prompt.stage import PLAN_CONTEXT_PROMPT
@ -36,16 +40,17 @@ class OAuthCallback(OAuthClientMixin, View):
source_id = None
source = None
# pylint: disable=too-many-return-statements
def get(self, request: HttpRequest, *_, **kwargs) -> HttpResponse:
"""View Get handler"""
slug = kwargs.get("source_slug", "")
try:
self.source = OAuthSource.objects.get(slug=slug)
except OAuthSource.DoesNotExist:
raise Http404("Unknown OAuth source '%s'." % slug)
raise Http404(f"Unknown OAuth source '{slug}'.")
else:
if not self.source.enabled:
raise Http404("source %s is not enabled." % slug)
raise Http404(f"Source {slug} is not enabled.")
client = self.get_client(self.source)
callback = self.get_callback_url(self.source)
# Fetch access token
@ -89,8 +94,11 @@ class OAuthCallback(OAuthClientMixin, View):
source=self.source, identifier=identifier, request=request
)
if user is None:
LOGGER.debug("Handling new connection", source=self.source)
return self.handle_new_connection(self.source, connection, info)
if self.request.user.is_authenticated:
LOGGER.debug("Linking existing user", source=self.source)
return self.handle_existing_user_link(self.source, connection, info)
LOGGER.debug("Handling enrollment of new user", source=self.source)
return self.handle_enroll(self.source, connection, info)
LOGGER.debug("Handling existing user", source=self.source)
return self.handle_existing_user(self.source, user, connection, info)
@ -122,6 +130,12 @@ class OAuthCallback(OAuthClientMixin, View):
return info["id"]
return None
def handle_login_failure(self, source: OAuthSource, reason: str) -> HttpResponse:
"Message user and redirect on error."
LOGGER.warning("Authentication Failure", reason=reason)
messages.error(self.request, _("Authentication Failed."))
return redirect(self.get_error_redirect(source, reason))
def handle_login_flow(self, flow: Flow, **kwargs) -> HttpResponse:
"""Prepare Authentication Plan, redirect user FlowExecutor"""
kwargs.update(
@ -133,7 +147,7 @@ class OAuthCallback(OAuthClientMixin, View):
)
# We run the Flow planner here so we can pass the Pending user in the context
planner = FlowPlanner(flow)
plan = planner.plan(self.request, kwargs,)
plan = planner.plan(self.request, kwargs)
self.request.session[SESSION_KEY_PLAN] = plan
return redirect_with_qs(
"passbook_flows:flow-executor-shell", self.request.GET, flow_slug=flow.slug,
@ -158,21 +172,14 @@ class OAuthCallback(OAuthClientMixin, View):
flow_kwargs = {PLAN_CONTEXT_PENDING_USER: user}
return self.handle_login_flow(source.authentication_flow, **flow_kwargs)
def handle_login_failure(self, source: OAuthSource, reason: str) -> HttpResponse:
"Message user and redirect on error."
LOGGER.warning("Authentication Failure", reason=reason)
messages.error(self.request, _("Authentication Failed."))
return redirect(self.get_error_redirect(source, reason))
def handle_new_connection(
def handle_existing_user_link(
self,
source: OAuthSource,
access: UserOAuthSourceConnection,
info: Dict[str, Any],
) -> HttpResponse:
"""Check if a user exists for the connection and connect them, otherwise
prepare to enroll a new user."""
if self.request.user.is_authenticated:
"""Handler when the user was already authenticated and linked an external source
to their account."""
# there's already a user logged in, just link them up
user = self.request.user
access.user = user
@ -191,7 +198,14 @@ class OAuthCallback(OAuthClientMixin, View):
kwargs={"source_slug": self.source.slug},
)
)
# User was not authenticated, new user will be created
def handle_enroll(
self,
source: OAuthSource,
access: UserOAuthSourceConnection,
info: Dict[str, Any],
) -> HttpResponse:
"""User was not authenticated and previous request was not authenticated."""
messages.success(
self.request,
_(
@ -199,11 +213,23 @@ class OAuthCallback(OAuthClientMixin, View):
% {"source": self.source.name}
),
)
# Trim out all keys that have a value of None,
# so we use `"key" in ` checks in policies
# Because we inject a stage into the planned flow, we can't use `self.handle_login_flow`
context = {
# Since we authenticate the user by their token, they have no backend set
PLAN_CONTEXT_AUTHENTICATION_BACKEND: "django.contrib.auth.backends.ModelBackend",
PLAN_CONTEXT_SSO: True,
PLAN_CONTEXT_PROMPT: delete_none_keys(
self.get_user_enroll_context(source, access, info)
)
),
PLAN_CONTEXT_SOURCES_OAUTH_ACCESS: access,
}
return self.handle_login_flow(source.enrollment_flow, **context)
# We run the Flow planner here so we can pass the Pending user in the context
planner = FlowPlanner(source.enrollment_flow)
plan = planner.plan(self.request, context)
plan.append(in_memory_stage(PostUserEnrollmentStage))
self.request.session[SESSION_KEY_PLAN] = plan
return redirect_with_qs(
"passbook_flows:flow-executor-shell",
self.request.GET,
flow_slug=source.enrollment_flow.slug,
)

28
passbook/sources/oauth/views/flows.py Normal file
View File

@ -0,0 +1,28 @@
"""OAuth Stages"""
from django.http import HttpRequest, HttpResponse
from passbook.audit.models import Event, EventAction
from passbook.core.models import User
from passbook.flows.planner import PLAN_CONTEXT_PENDING_USER
from passbook.flows.stage import StageView
from passbook.sources.oauth.models import UserOAuthSourceConnection
PLAN_CONTEXT_SOURCES_OAUTH_ACCESS = "sources_oauth_access"
class PostUserEnrollmentStage(StageView):
"""Dynamically injected stage which saves the OAuth Connection after
the user has been enrolled."""
def get(self, request: HttpRequest, *args, **kwargs) -> HttpResponse:
access: UserOAuthSourceConnection = self.executor.plan.context[
PLAN_CONTEXT_SOURCES_OAUTH_ACCESS
]
user: User = self.executor.plan.context[PLAN_CONTEXT_PENDING_USER]
access.user = user
access.save()
UserOAuthSourceConnection.objects.filter(pk=access.pk).update(user=user)
Event.new(
EventAction.CUSTOM, message="Linked OAuth Source", source=access.source
).from_http(self.request)
return self.executor.stage_ok()