[#1427] Extra check that admin OAuth scope is used by admin. Adjusted tests.

This commit is contained in:
Ivan Tashkinov 2019-12-07 17:49:53 +03:00
parent 40e1817f70
commit 1770602747
4 changed files with 67 additions and 27 deletions

View file

@ -6,29 +6,37 @@ defmodule Pleroma.Plugs.UserIsAdminPlug do
import Pleroma.Web.TranslationHelpers
import Plug.Conn
alias Pleroma.User
alias Pleroma.Web.OAuth
def init(options) do
options
end
def call(%Plug.Conn{assigns: assigns} = conn, _) do
def call(%{assigns: %{user: %User{is_admin: true}} = assigns} = conn, _) do
token = assigns[:token]
user = assigns[:user]
cond do
not Pleroma.Config.enforce_oauth_admin_scope_usage?() ->
conn
token && OAuth.Scopes.contains_admin_scopes?(token.scopes) ->
# Note: checking for _any_ admin scope presence, not necessarily fitting requested action.
# Thus, controller must explicitly invoke OAuthScopesPlug to verify scope requirements.
conn
user && user.is_admin && !Pleroma.Config.enforce_oauth_admin_scope_usage?() ->
conn
true ->
conn
|> render_error(:forbidden, "User is not an admin or OAuth admin scope is not granted.")
|> halt()
fail(conn)
end
end
def call(conn, _) do
fail(conn)
end
defp fail(conn) do
conn
|> render_error(:forbidden, "User is not an admin or OAuth admin scope is not granted.")
|> halt()
end
end

View file

@ -1736,7 +1736,8 @@ defmodule Pleroma.User do
with {:ok, updated_user} <- update_and_set_cache(changeset) do
if user.is_admin && !updated_user.is_admin do
# Tokens & authorizations containing any admin scopes must be revoked (revoking all)
# Tokens & authorizations containing any admin scopes must be revoked (revoking all).
# This is an extra safety measure (tokens' admin scopes won't be accepted for non-admins).
global_sign_out(user)
end

View file

@ -13,7 +13,7 @@ defmodule Pleroma.Plugs.UserIsAdminPlugTest do
Pleroma.Config.put([:auth, :enforce_oauth_admin_scope_usage], false)
end
test "accepts a user that is admin" do
test "accepts a user that is an admin" do
user = insert(:user, is_admin: true)
conn = assign(build_conn(), :user, user)
@ -23,7 +23,7 @@ defmodule Pleroma.Plugs.UserIsAdminPlugTest do
assert conn == ret_conn
end
test "denies a user that isn't admin" do
test "denies a user that isn't an admin" do
user = insert(:user)
conn =
@ -54,23 +54,43 @@ defmodule Pleroma.Plugs.UserIsAdminPlugTest do
{:ok, %{users: [admin_user, non_admin_user, blank_user]}}
end
# Note: in real-life scenarios only users with is_admin flag can possess admin-scoped tokens;
# however, the following test stresses out that is_admin flag is not checked if we got token
test "if token has any of admin scopes, accepts users regardless of is_admin flag",
%{users: users} do
for user <- users do
token = insert(:oauth_token, user: user, scopes: ["admin:something"])
test "if token has any of admin scopes, accepts a user that is an admin", %{conn: conn} do
user = insert(:user, is_admin: true)
token = insert(:oauth_token, user: user, scopes: ["admin:something"])
conn =
build_conn()
|> assign(:user, user)
|> assign(:token, token)
|> UserIsAdminPlug.call(%{})
conn =
conn
|> assign(:user, user)
|> assign(:token, token)
ret_conn = UserIsAdminPlug.call(conn, %{})
ret_conn = UserIsAdminPlug.call(conn, %{})
assert conn == ret_conn
end
assert conn == ret_conn
end
test "if token has any of admin scopes, denies a user that isn't an admin", %{conn: conn} do
user = insert(:user, is_admin: false)
token = insert(:oauth_token, user: user, scopes: ["admin:something"])
conn =
conn
|> assign(:user, user)
|> assign(:token, token)
|> UserIsAdminPlug.call(%{})
assert conn.status == 403
end
test "if token has any of admin scopes, denies when a user isn't set", %{conn: conn} do
token = insert(:oauth_token, scopes: ["admin:something"])
conn =
conn
|> assign(:user, nil)
|> assign(:token, token)
|> UserIsAdminPlug.call(%{})
assert conn.status == 403
end
test "if token lacks admin scopes, denies users regardless of is_admin flag",

View file

@ -36,6 +36,7 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIControllerTest do
test "GET /api/pleroma/admin/users/:nickname requires admin:read:accounts or broader scope" do
user = insert(:user)
admin = insert(:user, is_admin: true)
url = "/api/pleroma/admin/users/#{user.nickname}"
good_token1 = insert(:oauth_token, user: admin, scopes: ["admin"])
good_token2 = insert(:oauth_token, user: admin, scopes: ["admin:read"])
@ -50,17 +51,27 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIControllerTest do
build_conn()
|> assign(:user, admin)
|> assign(:token, good_token)
|> get("/api/pleroma/admin/users/#{user.nickname}")
|> get(url)
assert json_response(conn, 200)
end
for good_token <- [good_token1, good_token2, good_token3] do
conn =
build_conn()
|> assign(:user, nil)
|> assign(:token, good_token)
|> get(url)
assert json_response(conn, :forbidden)
end
for bad_token <- [bad_token1, bad_token2, bad_token3] do
conn =
build_conn()
|> assign(:user, admin)
|> assign(:token, bad_token)
|> get("/api/pleroma/admin/users/#{user.nickname}")
|> get(url)
assert json_response(conn, :forbidden)
end