feat: add logic to prevent edit for some user accounts

mostly for sake of online demo, so a "permanent" demo user can be
established

src/wuttaweb/templates/base.mako

@@ -661,7 +661,9 @@
               </a>
               ${h.end_form()}
           % endif
-          ${h.link_to("Change Password", url('change_password'), class_='navbar-item')}
+          % if request.is_root or not request.user.prevent_edit:
+              ${h.link_to("Change Password", url('change_password'), class_='navbar-item')}
+          % endif
           ${h.link_to("Logout", url('logout'), class_='navbar-item')}
         </div>
       </div>

src/wuttaweb/views/auth.py

@@ -157,6 +157,9 @@ class AuthView(View):
         if not self.request.user:
             return self.redirect(self.request.route_url('home'))
 
+        if self.request.user.prevent_edit:
+            raise self.forbidden()
+
         form = self.make_form(schema=self.change_password_make_schema(),
                               show_button_cancel=False,
                               show_button_reset=True)

src/wuttaweb/views/essential.py

@@ -29,8 +29,8 @@ Most apps should include this module::
 
 That will in turn include the following modules:
 
-* :mod:`wuttaweb.views.auth`
 * :mod:`wuttaweb.views.common`
+* :mod:`wuttaweb.views.auth`
 * :mod:`wuttaweb.views.settings`
 * :mod:`wuttaweb.views.progress`
 * :mod:`wuttaweb.views.people`
@@ -43,8 +43,8 @@ That will in turn include the following modules:
 def defaults(config, **kwargs):
     mod = lambda spec: kwargs.get(spec, spec)
 
-    config.include(mod('wuttaweb.views.auth'))
     config.include(mod('wuttaweb.views.common'))
+    config.include(mod('wuttaweb.views.auth'))
     config.include(mod('wuttaweb.views.settings'))
     config.include(mod('wuttaweb.views.progress'))
     config.include(mod('wuttaweb.views.people'))

src/wuttaweb/views/users.py

@@ -95,6 +95,15 @@ class UserView(MasterView):
         if not user.active:
             return 'has-background-warning'
 
+    def is_editable(self, user):
+        """ """
+
+        # only root can edit certain users
+        if user.prevent_edit and not self.request.is_root:
+            return False
+
+        return True
+
     def configure_form(self, f):
         """ """
         super().configure_form(f)

tests/views/test_auth.py

@@ -80,11 +80,18 @@ class TestAuthView(WebTestCase):
         redirect = view.change_password()
         self.assertIsInstance(redirect, HTTPFound)
 
-        # now "login" the user, and set initial password
-        self.request.user = barney
+        # set initial password
         auth.set_user_password(barney, 'foo')
         self.session.commit()
 
+        # forbidden if prevent_edit is set for user
+        self.request.user = barney
+        barney.prevent_edit = True
+        self.assertRaises(HTTPForbidden, view.change_password)
+
+        # okay let's test with edit allowed
+        barney.prevent_edit = False
+
         # view should now return context w/ form
         context = view.change_password()
         self.assertIn('form', context)

tests/views/test_users.py

@@ -42,6 +42,26 @@ class TestUserView(WebTestCase):
         user.active = False
         self.assertEqual(view.grid_row_class(user, data, 1), 'has-background-warning')
 
+    def test_is_editable(self):
+        model = self.app.model
+        view = self.make_view()
+
+        # active user is editable
+        user = model.User(username='barney', active=True)
+        self.assertTrue(view.is_editable(user))
+
+        # inactive also editable
+        user = model.User(username='barney', active=False)
+        self.assertTrue(view.is_editable(user))
+
+        # but not if prevent_edit flag is set
+        user = model.User(username='barney', prevent_edit=True)
+        self.assertFalse(view.is_editable(user))
+
+        # unless request user is root
+        self.request.is_root = True
+        self.assertTrue(view.is_editable(user))
+
     def test_configure_form(self):
         model = self.app.model
         barney = model.User(username='barney')