diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/pleroma/plugs/oauth_scopes_plug.ex | 2 | ||||
| -rw-r--r-- | lib/pleroma/web/mastodon_api/websocket_handler.ex | 10 | ||||
| -rw-r--r-- | lib/pleroma/web/streamer/streamer.ex | 70 |
3 files changed, 59 insertions, 23 deletions
diff --git a/lib/pleroma/plugs/oauth_scopes_plug.ex b/lib/pleroma/plugs/oauth_scopes_plug.ex index efc25b79f..b1a736d78 100644 --- a/lib/pleroma/plugs/oauth_scopes_plug.ex +++ b/lib/pleroma/plugs/oauth_scopes_plug.ex @@ -53,7 +53,7 @@ defmodule Pleroma.Plugs.OAuthScopesPlug do |> assign(:token, nil) end - @doc "Filters descendants of supported scopes" + @doc "Keeps those of `scopes` which are descendants of `supported_scopes`" def filter_descendants(scopes, supported_scopes) do Enum.filter( scopes, diff --git a/lib/pleroma/web/mastodon_api/websocket_handler.ex b/lib/pleroma/web/mastodon_api/websocket_handler.ex index cf923ded8..439cdd716 100644 --- a/lib/pleroma/web/mastodon_api/websocket_handler.ex +++ b/lib/pleroma/web/mastodon_api/websocket_handler.ex @@ -23,8 +23,8 @@ defmodule Pleroma.Web.MastodonAPI.WebsocketHandler do with params <- Enum.into(:cow_qs.parse_qs(qs), %{}), sec_websocket <- :cowboy_req.header("sec-websocket-protocol", req, nil), access_token <- Map.get(params, "access_token"), - {:ok, user} <- authenticate_request(access_token, sec_websocket), - {:ok, topic} <- Streamer.get_topic(Map.get(params, "stream"), user, params) do + {:ok, user, oauth_token} <- authenticate_request(access_token, sec_websocket), + {:ok, topic} <- Streamer.get_topic(params["stream"], user, oauth_token, params) do req = if sec_websocket do :cowboy_req.set_resp_header("sec-websocket-protocol", sec_websocket, req) @@ -117,7 +117,7 @@ defmodule Pleroma.Web.MastodonAPI.WebsocketHandler do # Public streams without authentication. defp authenticate_request(nil, nil) do - {:ok, nil} + {:ok, nil, nil} end # Authenticated streams. @@ -125,9 +125,9 @@ defmodule Pleroma.Web.MastodonAPI.WebsocketHandler do token = access_token || sec_websocket with true <- is_bitstring(token), - %Token{user_id: user_id} <- Repo.get_by(Token, token: token), + oauth_token = %Token{user_id: user_id} <- Repo.get_by(Token, token: token), user = %User{} <- User.get_cached_by_id(user_id) do - {:ok, user} + {:ok, user, oauth_token} else _ -> {:error, :unauthorized} end diff --git a/lib/pleroma/web/streamer/streamer.ex b/lib/pleroma/web/streamer/streamer.ex index d1d70e556..5475f18a6 100644 --- a/lib/pleroma/web/streamer/streamer.ex +++ b/lib/pleroma/web/streamer/streamer.ex @@ -11,10 +11,12 @@ defmodule Pleroma.Web.Streamer do alias Pleroma.Conversation.Participation alias Pleroma.Notification alias Pleroma.Object + alias Pleroma.Plugs.OAuthScopesPlug alias Pleroma.User alias Pleroma.Web.ActivityPub.ActivityPub alias Pleroma.Web.ActivityPub.Visibility alias Pleroma.Web.CommonAPI + alias Pleroma.Web.OAuth.Token alias Pleroma.Web.StreamerView @mix_env Mix.env() @@ -26,53 +28,87 @@ defmodule Pleroma.Web.Streamer do @user_streams ["user", "user:notification", "direct", "user:pleroma_chat"] @doc "Expands and authorizes a stream, and registers the process for streaming." - @spec get_topic_and_add_socket(stream :: String.t(), User.t() | nil, Map.t() | nil) :: + @spec get_topic_and_add_socket( + stream :: String.t(), + User.t() | nil, + Token.t() | nil, + Map.t() | nil + ) :: {:ok, topic :: String.t()} | {:error, :bad_topic} | {:error, :unauthorized} - def get_topic_and_add_socket(stream, user, params \\ %{}) do - case get_topic(stream, user, params) do + def get_topic_and_add_socket(stream, user, oauth_token, params \\ %{}) do + case get_topic(stream, user, oauth_token, params) do {:ok, topic} -> add_socket(topic, user) error -> error end end @doc "Expand and authorizes a stream" - @spec get_topic(stream :: String.t(), User.t() | nil, Map.t()) :: + @spec get_topic(stream :: String.t(), User.t() | nil, Token.t() | nil, Map.t()) :: {:ok, topic :: String.t()} | {:error, :bad_topic} - def get_topic(stream, user, params \\ %{}) + def get_topic(stream, user, oauth_token, params \\ %{}) # Allow all public steams. - def get_topic(stream, _, _) when stream in @public_streams do + def get_topic(stream, _user, _oauth_token, _params) when stream in @public_streams do {:ok, stream} end # Allow all hashtags streams. - def get_topic("hashtag", _, %{"tag" => tag}) do + def get_topic("hashtag", _user, _oauth_token, %{"tag" => tag} = _params) do {:ok, "hashtag:" <> tag} end # Expand user streams. - def get_topic(stream, %User{} = user, _) when stream in @user_streams do - {:ok, stream <> ":" <> to_string(user.id)} + def get_topic( + stream, + %User{id: user_id} = user, + %Token{user_id: token_user_id} = oauth_token, + _params + ) + when stream in @user_streams and user_id == token_user_id do + # Note: "read" works for all user streams (not mentioning it since it's an ancestor scope) + required_scopes = + if stream == "user:notification" do + ["read:notifications"] + else + ["read:statuses"] + end + + if OAuthScopesPlug.filter_descendants(required_scopes, oauth_token.scopes) == [] do + {:error, :unauthorized} + else + {:ok, stream <> ":" <> to_string(user.id)} + end end - def get_topic(stream, _, _) when stream in @user_streams do + def get_topic(stream, _user, _oauth_token, _params) when stream in @user_streams do {:error, :unauthorized} end # List streams. - def get_topic("list", %User{} = user, %{"list" => id}) do - if Pleroma.List.get(id, user) do - {:ok, "list:" <> to_string(id)} - else - {:error, :bad_topic} + def get_topic( + "list", + %User{id: user_id} = user, + %Token{user_id: token_user_id} = oauth_token, + %{"list" => id} + ) + when user_id == token_user_id do + cond do + OAuthScopesPlug.filter_descendants(["read", "read:lists"], oauth_token.scopes) == [] -> + {:error, :unauthorized} + + Pleroma.List.get(id, user) -> + {:ok, "list:" <> to_string(id)} + + true -> + {:error, :bad_topic} end end - def get_topic("list", _, _) do + def get_topic("list", _user, _oauth_token, _params) do {:error, :unauthorized} end - def get_topic(_, _, _) do + def get_topic(_stream, _user, _oauth_token, _params) do {:error, :bad_topic} end |