Require pyramid 2.x; remove 1.x-style auth policies

setup.cfg

@@ -56,7 +56,7 @@ install_requires =
         paginate_sqlalchemy
         passlib
         Pillow
-        pyramid
+        pyramid>=2
         pyramid_beaker
         pyramid_deform
         pyramid_exclog

tailbone/app.py

@@ -39,7 +39,7 @@ from pyramid.authentication import SessionAuthenticationPolicy
 from zope.sqlalchemy import register
 
 import tailbone.db
-from tailbone.auth import TailboneAuthorizationPolicy
+from tailbone.auth import TailboneSecurityPolicy
 from tailbone.config import csrf_token_name, csrf_header_name
 from tailbone.util import get_effective_theme, get_theme_template_path
 from tailbone.providers import get_all_providers
@@ -136,14 +136,7 @@ def make_pyramid_config(settings, configure_csrf=True):
     config.registry['rattail_config'] = rattail_config
 
     # configure user authorization / authentication
-    # TODO: security policy should become the default, for pyramid 2.x
-    if rattail_config.getbool('tailbone', 'pyramid.use_security_policy',
-                              usedb=False, default=False):
-        from tailbone.auth import TailboneSecurityPolicy
-        config.set_security_policy(TailboneSecurityPolicy())
-    else:
-        config.set_authorization_policy(TailboneAuthorizationPolicy())
-        config.set_authentication_policy(SessionAuthenticationPolicy())
+    config.set_security_policy(TailboneSecurityPolicy())
 
     # maybe require CSRF token protection
     if configure_csrf:

tailbone/auth.py

@@ -30,9 +30,9 @@ import re
 from rattail.util import prettify, NOTSET
 
 from zope.interface import implementer
-from pyramid.interfaces import IAuthorizationPolicy
-from pyramid.security import remember, forget, Everyone, Authenticated
-from pyramid.authentication import SessionAuthenticationPolicy
+from pyramid.authentication import SessionAuthenticationHelper
+from pyramid.request import RequestLocalCache
+from pyramid.security import remember, forget
 
 from tailbone.db import Session
 
@@ -90,73 +90,9 @@ def set_session_timeout(request, timeout):
     request.session['_timeout'] = timeout or None
 
 
-class TailboneAuthenticationPolicy(SessionAuthenticationPolicy):
-    """
-    Custom authentication policy for Tailbone.
-
-    This is mostly Pyramid's built-in session-based policy, but adds
-    logic to accept Rattail User API Tokens in lieu of current user
-    being identified via the session.
-
-    Note that the traditional Tailbone web app does *not* use this
-    policy, only the Tailbone web API uses it by default.
-    """
-
-    def unauthenticated_userid(self, request):
-
-        # figure out userid from header token if present
-        credentials = request.headers.get('Authorization')
-        if credentials:
-            match = re.match(r'^Bearer (\S+)$', credentials)
-            if match:
-                token = match.group(1)
-                rattail_config = request.registry.settings.get('rattail_config')
-                app = rattail_config.get_app()
-                auth = app.get_auth_handler()
-                user = auth.authenticate_user_token(Session(), token)
-                if user:
-                    return user.uuid
-
-        # otherwise do normal session-based logic
-        return super().unauthenticated_userid(request)
-
-
-@implementer(IAuthorizationPolicy)
-class TailboneAuthorizationPolicy(object):
-
-    def permits(self, context, principals, permission):
-        config = context.request.rattail_config
-        model = config.get_model()
-        app = config.get_app()
-        auth = app.get_auth_handler()
-
-        for userid in principals:
-            if userid not in (Everyone, Authenticated):
-                if context.request.user and context.request.user.uuid == userid:
-                    return context.request.has_perm(permission)
-                else:
-                    # this is pretty rare, but can happen in dev after
-                    # re-creating the database, which means new user uuids.
-                    # TODO: the odds of this query returning a user in that
-                    # case, are probably nil, and we should just skip this bit?
-                    user = Session.get(model.User, userid)
-                    if user:
-                        if auth.has_permission(Session(), user, permission):
-                            return True
-        if Everyone in principals:
-            return auth.has_permission(Session(), None, permission)
-        return False
-
-    def principals_allowed_by_permission(self, context, permission):
-        raise NotImplementedError
-
-
 class TailboneSecurityPolicy:
 
     def __init__(self, api_mode=False):
-        from pyramid.authentication import SessionAuthenticationHelper
-        from pyramid.request import RequestLocalCache
-
         self.api_mode = api_mode
         self.session_helper = SessionAuthenticationHelper()
         self.identity_cache = RequestLocalCache(self.load_identity)

tailbone/webapi.py

@@ -30,7 +30,7 @@ from cornice.renderer import CorniceRenderer
 from pyramid.config import Configurator
 
 from tailbone import app
-from tailbone.auth import TailboneAuthenticationPolicy, TailboneAuthorizationPolicy
+from tailbone.auth import TailboneSecurityPolicy
 from tailbone.providers import get_all_providers
 
 
@@ -50,14 +50,7 @@ def make_pyramid_config(settings):
     pyramid_config = Configurator(settings=settings, root_factory=app.Root)
 
     # configure user authorization / authentication
-    # TODO: security policy should become the default, for pyramid 2.x
-    if rattail_config.getbool('tailbone', 'pyramid.use_security_policy',
-                              usedb=False, default=False):
-        from tailbone.auth import TailboneSecurityPolicy
-        pyramid_config.set_security_policy(TailboneSecurityPolicy(api_mode=True))
-    else:
-        pyramid_config.set_authentication_policy(TailboneAuthenticationPolicy())
-        pyramid_config.set_authorization_policy(TailboneAuthorizationPolicy())
+    pyramid_config.set_security_policy(TailboneSecurityPolicy(api_mode=True))
 
     # always require CSRF token protection
     pyramid_config.set_default_csrf_options(require_csrf=True,