Store IP-based org-given roles in the user document.

This is a two-stage approach that happens when a new token is verified
with Blender ID and stored in our local MongoDB:

  - Given the remote IP address of the HTTP request, compute and store the
    org roles in the token document.
  - Recompute the user's roles based on their own roles, regular org roles,
    and the roles stored in non-expired token documents.

This happens once per hour, since that's how long we store tokens in our
database.

pillar/api/blender_id.py

@@ -10,9 +10,11 @@ import logging
 import requests
 from bson import tz_util
 from rauth import OAuth2Session
-from flask import Blueprint, request, current_app, jsonify, session
+from flask import Blueprint, request, jsonify, session
 from requests.adapters import HTTPAdapter
 
+from pillar import current_app
+from pillar.api import service
 from pillar.api.utils import authentication
 from pillar.api.utils.authentication import find_user_in_db, upsert_user
 
@@ -79,7 +81,13 @@ def validate_create_user(blender_id_user_id, token, oauth_subclient_id):
     db_id, status = upsert_user(db_user)
 
     # Store the token in MongoDB.
-    authentication.store_token(db_id, token, token_expiry, oauth_subclient_id)
+    ip_based_roles = current_app.org_manager.roles_for_request()
+    authentication.store_token(db_id, token, token_expiry, oauth_subclient_id,
+                               org_roles=ip_based_roles)
+
+    if current_app.org_manager is not None:
+        roles = current_app.org_manager.refresh_roles(db_id)
+        db_user['roles'] = list(roles)
 
     return db_user, status
 

pillar/api/eve_settings.py

@@ -354,7 +354,16 @@ tokens_schema = {
     'is_subclient_token': {
         'type': 'boolean',
         'required': False,
-    }
+    },
+
+    # Roles this user gets while this token is valid.
+    'org_roles': {
+        'type': 'list',
+        'default': [],
+        'schema': {
+            'type': 'string',
+        },
+    },
 }
 
 files_schema = {

pillar/api/organizations/__init__.py

@@ -4,11 +4,13 @@ Assumes role names that are given to users by organization membership
 start with the string "org-".
 """
 
+import datetime
 import logging
 import typing
 
 import attr
 import bson
+import flask
 import werkzeug.exceptions as wz_exceptions
 
 from pillar import attrs_extra, current_app
@@ -244,8 +246,11 @@ class OrgManager:
         for uid in members:
             self.refresh_roles(uid)
 
-    def refresh_roles(self, user_id: bson.ObjectId):
-        """Refreshes the user's roles to own roles + organizations' roles."""
+    def refresh_roles(self, user_id: bson.ObjectId) -> typing.Set[str]:
+        """Refreshes the user's roles to own roles + organizations' roles.
+
+        :returns: the applied set of roles.
+        """
 
         assert isinstance(user_id, bson.ObjectId)
 
@@ -254,10 +259,11 @@ class OrgManager:
         self._log.info('Refreshing roles for user %s', user_id)
 
         org_coll = current_app.db('organizations')
+        tokens_coll = current_app.db('tokens')
 
-        # Aggregate all org-given roles for this user.
-        query = org_coll.aggregate([
-            {'$match': {'members': user_id}},
+        def aggr_roles(coll, match: dict) -> typing.Set[str]:
+            query = coll.aggregate([
+                {'$match': match},
                 {'$project': {'org_roles': 1}},
                 {'$unwind': {'path': '$org_roles'}},
                 {'$group': {
@@ -265,19 +271,29 @@ class OrgManager:
                     'org_roles': {'$addToSet': '$org_roles'},
                 }}])
 
-        # If the user has no organizations at all, the query will have no results.
+            # If the user has no organizations/tokens at all, the query will have no results.
             try:
                 org_roles_doc = query.next()
             except StopIteration:
-            org_roles = set()
-        else:
-            org_roles = set(org_roles_doc['org_roles'])
+                return set()
+            return set(org_roles_doc['org_roles'])
+
+        # Join all organization-given roles and roles from the tokens collection.
+        org_roles = aggr_roles(org_coll, {'members': user_id})
+        self._log.debug('Organization-given roles for user %s: %s', user_id, org_roles)
+        now = datetime.datetime.now(bson.tz_util.utc)
+        token_roles = aggr_roles(tokens_coll, {
+            'user': user_id,
+            'expire_time': {"$gt": now},
+        })
+        self._log.debug('Token-given roles for user %s: %s', user_id, token_roles)
+        org_roles.update(token_roles)
 
         users_coll = current_app.db('users')
         user_doc = users_coll.find_one(user_id, projection={'roles': 1})
         if not user_doc:
             self._log.warning('Trying refresh roles of non-existing user %s, ignoring', user_id)
-            return
+            return set()
 
         all_user_roles = set(user_doc.get('roles') or [])
         existing_org_roles = {role for role in all_user_roles
@@ -291,6 +307,8 @@ class OrgManager:
         if revoke_roles:
             do_badger('revoke', roles=revoke_roles, user_id=user_id)
 
+        return all_user_roles.union(grant_roles) - revoke_roles
+
     def user_is_admin(self, org_id: bson.ObjectId) -> bool:
         """Returns whether the currently logged in user is the admin of the organization."""
 
@@ -389,14 +407,37 @@ class OrgManager:
         from . import ip_ranges
 
         org_coll = current_app.db('organizations')
+        try:
+            q = ip_ranges.query(remote_addr)
+        except ValueError as ex:
+            self._log.warning('Invalid remote address %s, ignoring IP-based roles: %s',
+                              remote_addr, ex)
+            return set()
+
         orgs = org_coll.find(
-            {'ip_ranges': ip_ranges.query(remote_addr)},
+            {'ip_ranges': q},
             projection={'org_roles': True},
         )
         return set(role
                    for org in orgs
                    for role in org.get('org_roles', []))
 
+    def roles_for_request(self) -> typing.Set[str]:
+        """Find roles for user via the request's remote IP address."""
+
+        try:
+            remote_addr = flask.request.access_route[0]
+        except IndexError:
+            return set()
+
+        if not remote_addr:
+            return set()
+
+        roles = self.roles_for_ip_address(remote_addr)
+        self._log.debug('Roles for IP address %s: %s', remote_addr, roles)
+
+        return roles
+
 
 def setup_app(app):
     from . import patch, hooks

pillar/api/utils/authentication.py

@@ -55,7 +55,7 @@ def force_cli_user():
     g.current_user = CLI_USER
 
 
-def find_user_in_db(user_info: dict, provider='blender-id'):
+def find_user_in_db(user_info: dict, provider='blender-id') -> dict:
     """Find the user in our database, creating/updating the returned document where needed.
 
     First, search for the user using its id from the provider, then try to look the user up via the
@@ -222,7 +222,8 @@ def hash_auth_token(token: str) -> str:
     return base64.b64encode(digest).decode('ascii')
 
 
-def store_token(user_id, token: str, token_expiry, oauth_subclient_id=False):
+def store_token(user_id, token: str, token_expiry, oauth_subclient_id=False,
+                org_roles: typing.Set[str]=frozenset()):
     """Stores an authentication token.
 
     :returns: the token document from MongoDB
@@ -237,6 +238,8 @@ def store_token(user_id, token: str, token_expiry, oauth_subclient_id=False):
     }
     if oauth_subclient_id:
         token_data['is_subclient_token'] = True
+    if org_roles:
+        token_data['org_roles'] = sorted(org_roles)
 
     r, _, _, status = current_app.post_internal('tokens', token_data)
 

pillar/auth/__init__.py

@@ -67,6 +67,9 @@ class UserClass(flask_login.UserMixin):
     def __repr__(self):
         return f'UserClass(user_id={self.user_id})'
 
+    def __str__(self):
+        return f'{self.__class__.__name__}(id={self.user_id}, email={self.email!r}'
+
     def __getitem__(self, item):
         """Compatibility layer with old dict-based g.current_user object."""
 

pillar/tests/__init__.py

@@ -477,13 +477,15 @@ class AbstractPillarTest(TestMinimal):
         return urlencode(jsonified_params)
 
     def client_request(self, method, path, qs=None, expected_status=200, auth_token=None, json=None,
-                       data=None, headers=None, files=None, content_type=None, etag=None):
+                       data=None, headers=None, files=None, content_type=None, etag=None,
+                       environ_overrides=None):
         """Performs a HTTP request to the server."""
 
         from pillar.api.utils import dumps
         import json as mod_json
 
         headers = headers or {}
+        environ_overrides = environ_overrides or {}
         if auth_token is not None:
             headers['Authorization'] = self.make_header(auth_token)
 
@@ -506,7 +508,8 @@ class AbstractPillarTest(TestMinimal):
 
         resp = self.client.open(path=path, method=method, data=data, headers=headers,
                                 content_type=content_type,
-                                query_string=self.join_url_params(qs))
+                                query_string=self.join_url_params(qs),
+                                environ_overrides=environ_overrides)
         self.assertEqual(expected_status, resp.status_code,
                          'Expected status %i but got %i. Response: %s' % (
                              expected_status, resp.status_code, resp.data

tests/test_api/test_organizations.py

@@ -1,10 +1,11 @@
+import datetime
 import typing
 
 import bson
+from bson import tz_util
 import responses
 
 from pillar.tests import AbstractPillarTest
-from pillar.api.utils import remove_private_keys
 
 
 class AbstractOrgTest(AbstractPillarTest):
@@ -669,6 +670,7 @@ class OrganizationItemEveTest(AbstractPillarTest):
 
     def _put_test(self, auth_token: typing.Optional[str]):
         """Generic PUT test, should be same result for all cases."""
+        from pillar.api.utils import remove_private_keys
 
         put_doc = remove_private_keys(self.org_doc)
         put_doc['name'] = 'new name'
@@ -771,11 +773,10 @@ class UserCreationTest(AbstractPillarTest):
         self.assertEqual([my_id], db_org['members'])
 
 
-class IPRangeTest(AbstractOrgTest):
-
+class AbstractIPRangeSingleOrgTest(AbstractOrgTest):
     def setUp(self, **kwargs):
         super().setUp(**kwargs)
-        self.uid = self.create_user(24 * 'a', token='token')
+        self.uid = self.create_user(24 * 'a', roles={'subscriber'}, token='token')
         self.org_roles = {'org-subscriber', 'org-phabricator'}
         self.org = self.app.org_manager.create_new_org('Хакеры', self.uid, 25,
                                                        org_roles=self.org_roles)
@@ -793,6 +794,9 @@ class IPRangeTest(AbstractOrgTest):
         db_org = self.om._get_org(self.org_id)
         return db_org
 
+
+class IPRangeTest(AbstractIPRangeSingleOrgTest):
+
     def test_ipranges_doc(self):
         from pillar.api.organizations import ip_ranges
 
@@ -922,7 +926,7 @@ class IPRangeQueryTest(AbstractOrgTest):
         db_org = self.om._get_org(org_id)
         return db_org
 
-    def test_happy(self):
+    def test_query(self):
         # Set up a few organisations. A and B have overlapping IPv4 ranges, B and C on IPv6.
         org_roles_a = {'org-roleA1', 'org-roleA2'}
         org_a = self.app.org_manager.create_new_org('Хакеры', self.uid, 25, org_roles=org_roles_a)
@@ -961,3 +965,128 @@ class IPRangeQueryTest(AbstractOrgTest):
 
         self.assertEqual(set(), self.om.roles_for_ip_address('1111:ffff::1'))
         self.assertEqual(set(), self.om.roles_for_ip_address('::1'))
+
+
+class IPRangeLoginRolesTest(AbstractIPRangeSingleOrgTest):
+    def setUp(self, **kwargs):
+        super().setUp(**kwargs)
+        self.user_roles = {'subscriber'}
+        self._patch({
+            'name': 'Хакеры',
+            'ip_ranges': [
+                '192.168.0.0/16',
+                '2a03:b0c0:0:1010::8fe:6ef1/120',
+            ]})
+
+    def _test_api(self, headers: dict, env: dict):
+        from pillar.api.utils.authentication import hash_auth_token
+
+        self.mock_blenderid_validate_happy()
+        # This should check the IP of the user agains the organization IP ranges and update the
+        # user in the database.
+        resp = self.get('/api/users/me', auth_token='usertoken',
+                        headers=headers, environ_overrides=env)
+        me = resp.json()
+
+        # The IP-based roles should be stored in the token document.
+        tokens_coll = self.app.db('tokens')
+        token = tokens_coll.find_one({
+            'user': bson.ObjectId(me['_id']),
+            'token_hashed': hash_auth_token('usertoken'),
+        })
+        self.assertEqual(self.org_roles, set(token['org_roles']))
+
+        # The IP-based roles should also be persisted in the user document.
+        self.assertEqual({'subscriber', *self.org_roles}, set(me['roles']))
+
+    def _test_api_forwarded_for(self, ip_addr: str):
+        self._test_api({'X-Forwarded-For': ip_addr}, {})
+
+    def _test_api_remote_addr(self, ip_addr: str):
+        self._test_api({}, {'REMOTE_ADDR': ip_addr})
+
+    @responses.activate
+    def test_api_forwarded_for_ipv6(self):
+        self._test_api_forwarded_for('2a03:b0c0:0:1010::8fe:6ede')
+
+    @responses.activate
+    def test_api_forwarded_for_ipv4(self):
+        self._test_api_forwarded_for('192.168.3.254, 4.3.4.4, 5.6.7.8')
+
+    @responses.activate
+    def test_api_remote_addr_ipv6(self):
+        self._test_api_remote_addr('2a03:b0c0:0:1010::8fe:6ede')
+
+    @responses.activate
+    def test_api_remote_addr_ipv4(self):
+        self._test_api_remote_addr('192.168.3.254')
+
+    def _test_web_forwarded_for(self, ip_addr: str, ip_roles: typing.Set[str]):
+        from pillar.api.utils.authentication import hash_auth_token
+        from pillar import auth
+        self.mock_blenderid_validate_happy()
+
+        expect_roles = {*self.user_roles, *ip_roles}
+
+        with self.app.test_request_context(headers={'X-Forwarded-For': ip_addr}):
+            # This should check the IP of the user agains the organization IP ranges and update the
+            # user in the database.
+            auth.login_user('usertoken', load_from_db=True)
+            my_id = auth.current_user.user_id
+
+            # The roles should be reflected in the current user object.
+            self.assertEqual(expect_roles, set(auth.current_user.roles))
+
+        # The IP-based roles should be stored in the token document.
+        tokens_coll = self.app.db('tokens')
+        token = tokens_coll.find_one({
+            'user': bson.ObjectId(my_id),
+            'token_hashed': hash_auth_token('usertoken'),
+            'expire_time': {'$gt': datetime.datetime.now(tz_util.utc)},
+        })
+        self.assertEqual(ip_roles, set(token['org_roles']))
+
+        # The IP-based roles should also be persisted in the user document.
+        users_coll = self.app.db('users')
+        me = users_coll.find_one({'_id': my_id})
+        self.assertEqual(expect_roles, set(me['roles']))
+
+    @responses.activate
+    def test_web_forwarded_for_ipv6(self):
+        self._test_web_forwarded_for('2a03:b0c0:0:1010::8fe:6ede', self.org_roles)
+
+        # Even though this request is outside of the IP range, the user should
+        # still maintain their organization's roles because it's stored in the
+        # token document created for the previous request.
+        self._test_web_forwarded_for('2a03:d00d:0:1010::8fe:6ede', self.org_roles)
+
+    @responses.activate
+    def test_web_forwarded_for_ipv6_outside_range(self):
+        self._test_web_forwarded_for('2a03:d00d:0:1010::8fe:6ede', set())
+
+    @responses.activate
+    def test_web_forwarded_for_ipv4(self):
+        self._test_web_forwarded_for('192.168.3.254', self.org_roles)
+        self._test_web_forwarded_for('123.123.123.123', self.org_roles)
+
+    @responses.activate
+    def test_web_forwarded_for_ipv4_outside_range(self):
+        self._test_web_forwarded_for('123.123.123.123', set())
+
+    @responses.activate
+    def test_web_forwarded_for_invalid_addr(self):
+        # This shouldn't produce any exception, but be ignored instead.
+        self._test_web_forwarded_for('317.518.1.7', set())
+
+    @responses.activate
+    def test_web_expire_Roles(self):
+        # This gives the roles until the token expires.
+        self._test_web_forwarded_for('2a03:b0c0:0:1010::8fe:6ede', self.org_roles)
+
+        # Force all tokens to expire.
+        tokens_coll = self.app.db('tokens')
+        expire = datetime.datetime.now(tz=tz_util.utc) - datetime.timedelta(hours=1)
+        tokens_coll.update_many({}, {'$set': {'expire_time': expire}})
+
+        # A new request from outside the IP range should now not result in the org roles.
+        self._test_web_forwarded_for('2a03:d00d:0:1010::8fe:6ede', set())