[#1427] Initial support for OAuth admin scopes.

lib/pleroma/web/admin_api/admin_api_controller.ex

@@ -30,13 +30,13 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
 
   plug(
     OAuthScopesPlug,
-    %{scopes: ["read:accounts"]}
+    %{scopes: ["admin:read:accounts", "read:accounts"]}
     when action in [:list_users, :user_show, :right_get, :invites]
   )
 
   plug(
     OAuthScopesPlug,
-    %{scopes: ["write:accounts"]}
+    %{scopes: ["admin:write:accounts", "write:accounts"]}
     when action in [
            :get_invite_token,
            :revoke_invite,
@@ -58,35 +58,35 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
 
   plug(
     OAuthScopesPlug,
-    %{scopes: ["read:reports"]} when action in [:list_reports, :report_show]
+    %{scopes: ["admin:read:reports", "read:reports"]} when action in [:list_reports, :report_show]
   )
 
   plug(
     OAuthScopesPlug,
-    %{scopes: ["write:reports"]}
+    %{scopes: ["admin:reports", "write:reports"]}
     when action in [:report_update_state, :report_respond]
   )
 
   plug(
     OAuthScopesPlug,
-    %{scopes: ["read:statuses"]} when action == :list_user_statuses
+    %{scopes: ["admin:read:statuses", "read:statuses"]} when action == :list_user_statuses
   )
 
   plug(
     OAuthScopesPlug,
-    %{scopes: ["write:statuses"]}
+    %{scopes: ["admin:write:statuses", "write:statuses"]}
     when action in [:status_update, :status_delete]
   )
 
   plug(
     OAuthScopesPlug,
-    %{scopes: ["read"]}
+    %{scopes: ["admin:read", "read"]}
     when action in [:config_show, :migrate_to_db, :migrate_from_db, :list_log]
   )
 
   plug(
     OAuthScopesPlug,
-    %{scopes: ["write"]}
+    %{scopes: ["admin:write", "write"]}
     when action in [:relay_follow, :relay_unfollow, :config_update]
   )
 

lib/pleroma/web/oauth/oauth_controller.ex

@@ -222,7 +222,7 @@ def token_exchange(
          {:user_active, true} <- {:user_active, !user.deactivated},
          {:password_reset_pending, false} <-
            {:password_reset_pending, user.password_reset_pending},
-         {:ok, scopes} <- validate_scopes(app, params),
+         {:ok, scopes} <- validate_scopes(app, params, user),
          {:ok, auth} <- Authorization.create_authorization(app, user, scopes),
          {:ok, token} <- Token.exchange_token(app, auth) do
       json(conn, Token.Response.build(user, token))
@@ -471,7 +471,7 @@ defp do_create_authorization(
            {:get_user, (user && {:ok, user}) || Authenticator.get_user(conn)},
          %App{} = app <- Repo.get_by(App, client_id: client_id),
          true <- redirect_uri in String.split(app.redirect_uris),
-         {:ok, scopes} <- validate_scopes(app, auth_attrs),
+         {:ok, scopes} <- validate_scopes(app, auth_attrs, user),
          {:auth_active, true} <- {:auth_active, User.auth_active?(user)} do
       Authorization.create_authorization(app, user, scopes)
     end
@@ -487,12 +487,12 @@ defp get_session_registration_id(%Plug.Conn{} = conn), do: get_session(conn, :re
   defp put_session_registration_id(%Plug.Conn{} = conn, registration_id),
     do: put_session(conn, :registration_id, registration_id)
 
-  @spec validate_scopes(App.t(), map()) ::
+  @spec validate_scopes(App.t(), map(), User.t()) ::
           {:ok, list()} | {:error, :missing_scopes | :unsupported_scopes}
-  defp validate_scopes(app, params) do
+  defp validate_scopes(%App{} = app, params, %User{} = user) do
     params
     |> Scopes.fetch_scopes(app.scopes)
-    |> Scopes.validate(app.scopes)
+    |> Scopes.validate(app.scopes, user)
   end
 
   def default_redirect_uri(%App{} = app) do

lib/pleroma/web/oauth/scopes.ex

@@ -7,6 +7,9 @@ defmodule Pleroma.Web.OAuth.Scopes do
   Functions for dealing with scopes.
   """
 
+  alias Pleroma.Plugs.OAuthScopesPlug
+  alias Pleroma.User
+
   @doc """
   Fetch scopes from request params.
 
@@ -53,15 +56,36 @@ def to_string(scopes), do: Enum.join(scopes, " ")
   @doc """
   Validates scopes.
   """
-  @spec validate(list() | nil, list()) ::
+  @spec validate(list() | nil, list(), User.t()) ::
           {:ok, list()} | {:error, :missing_scopes | :unsupported_scopes}
-  def validate([], _app_scopes), do: {:error, :missing_scopes}
-  def validate(nil, _app_scopes), do: {:error, :missing_scopes}
+  def validate(blank_scopes, _app_scopes, _user) when blank_scopes in [nil, []],
+    do: {:error, :missing_scopes}
 
-  def validate(scopes, app_scopes) do
-    case Pleroma.Plugs.OAuthScopesPlug.filter_descendants(scopes, app_scopes) do
+  def validate(scopes, app_scopes, %User{} = user) do
+    with {:ok, _} <- ensure_scopes_support(scopes, app_scopes),
+         {:ok, scopes} <- authorize_admin_scopes(scopes, app_scopes, user) do
+      {:ok, scopes}
+    end
+  end
+
+  defp ensure_scopes_support(scopes, app_scopes) do
+    case OAuthScopesPlug.filter_descendants(scopes, app_scopes) do
       ^scopes -> {:ok, scopes}
       _ -> {:error, :unsupported_scopes}
     end
   end
+
+  defp authorize_admin_scopes(scopes, app_scopes, %User{} = user) do
+    if user.is_admin || !contains_admin_scopes?(scopes) || !contains_admin_scopes?(app_scopes) do
+      {:ok, scopes}
+    else
+      {:error, :unsupported_scopes}
+    end
+  end
+
+  defp contains_admin_scopes?(scopes) do
+    scopes
+    |> OAuthScopesPlug.filter_descendants(["admin"])
+    |> Enum.any?()
+  end
 end

lib/pleroma/web/pleroma_api/controllers/emoji_api_controller.ex

@@ -7,7 +7,7 @@ defmodule Pleroma.Web.PleromaAPI.EmojiAPIController do
 
   plug(
     OAuthScopesPlug,
-    %{scopes: ["write"]}
+    %{scopes: ["admin:write", "write"]}
     when action in [
            :create,
            :delete,