From b12a90491156f1b31defd7aa1b322a86867dbf2b Mon Sep 17 00:00:00 2001
From: href <href@random.sh>
Date: Mon, 17 Dec 2018 17:09:06 +0100
Subject: [PATCH] Integration tests for mastodon websocket

---
 config/test.exs                                |   3 +-
 mix.exs                                        |   3 +-
 mix.lock                                       |   1 +
 test/integration/mastodon_websocket_test.exs   | 100 +++++++++++++++++++++++++
 test/support/websocket_client.ex               |  58 ++++++++++++++
 test/web/mastodon_api/mastodon_socket_test.exs |  31 --------
 6 files changed, 163 insertions(+), 33 deletions(-)
 create mode 100644 test/integration/mastodon_websocket_test.exs
 create mode 100644 test/support/websocket_client.ex
 delete mode 100644 test/web/mastodon_api/mastodon_socket_test.exs

diff --git a/config/test.exs b/config/test.exs
index 5c6acfead..8f4a2dc17 100644
--- a/config/test.exs
+++ b/config/test.exs
@@ -4,7 +4,8 @@ use Mix.Config
 # you can enable the server option below.
 config :pleroma, Pleroma.Web.Endpoint,
   http: [port: 4001],
-  server: false
+  url: [port: 4001],
+  server: true
 
 # Print only warnings and errors during test
 config :logger, level: :warn
diff --git a/mix.exs b/mix.exs
index 52974c841..0e8a7026c 100644
--- a/mix.exs
+++ b/mix.exs
@@ -73,7 +73,8 @@ defmodule Pleroma.Mixfile do
       {:ex_doc, "> 0.18.3 and < 0.20.0", only: :dev, runtime: false},
       {:web_push_encryption, "~> 0.2.1"},
       {:swoosh, "~> 0.20"},
-      {:gen_smtp, "~> 0.13"}
+      {:gen_smtp, "~> 0.13"},
+      {:websocket_client, git: "https://github.com/jeremyong/websocket_client.git", only: :test}
     ]
   end
 
diff --git a/mix.lock b/mix.lock
index 0a3b6f715..96625a65e 100644
--- a/mix.lock
+++ b/mix.lock
@@ -59,4 +59,5 @@
   "unicode_util_compat": {:hex, :unicode_util_compat, "0.3.1", "a1f612a7b512638634a603c8f401892afbf99b8ce93a45041f8aaca99cadb85e", [:rebar3], [], "hexpm"},
   "unsafe": {:hex, :unsafe, "1.0.0", "7c21742cd05380c7875546b023481d3a26f52df8e5dfedcb9f958f322baae305", [:mix], [], "hexpm"},
   "web_push_encryption": {:hex, :web_push_encryption, "0.2.1", "d42cecf73420d9dc0053ba3299cc8c8d6ff2be2487d67ca2a57265868e4d9a98", [:mix], [{:httpoison, "~> 1.0", [hex: :httpoison, repo: "hexpm", optional: false]}, {:jose, "~> 1.8", [hex: :jose, repo: "hexpm", optional: false]}, {:poison, "~> 3.0", [hex: :poison, repo: "hexpm", optional: false]}], "hexpm"},
+  "websocket_client": {:git, "https://github.com/jeremyong/websocket_client.git", "9a6f65d05ebf2725d62fb19262b21f1805a59fbf", []},
 }
diff --git a/test/integration/mastodon_websocket_test.exs b/test/integration/mastodon_websocket_test.exs
new file mode 100644
index 000000000..b5f3d3a47
--- /dev/null
+++ b/test/integration/mastodon_websocket_test.exs
@@ -0,0 +1,100 @@
+defmodule Pleroma.Integration.MastodonWebsocketTest do
+  use Pleroma.DataCase
+
+  import Pleroma.Factory
+
+  alias Pleroma.Web.CommonAPI
+  alias Pleroma.Web.OAuth
+  alias Pleroma.Integration.WebsocketClient
+  alias Pleroma.Web.Streamer
+
+  @path Pleroma.Web.Endpoint.url()
+        |> URI.parse()
+        |> Map.put(:scheme, "ws")
+        |> Map.put(:path, "/api/v1/streaming")
+        |> URI.to_string()
+
+  setup do
+    GenServer.start(Streamer, %{}, name: Streamer)
+
+    on_exit(fn ->
+      if pid = Process.whereis(Streamer) do
+        Process.exit(pid, :kill)
+      end
+    end)
+  end
+
+  def start_socket(qs \\ nil, headers \\ []) do
+    path =
+      case qs do
+        nil -> @path
+        qs -> @path <> qs
+      end
+
+    WebsocketClient.start_link(self(), path, headers)
+  end
+
+  test "refuses invalid requests" do
+    assert {:error, {400, _}} = start_socket()
+    assert {:error, {404, _}} = start_socket("?stream=ncjdk")
+  end
+
+  test "requires authentication and a valid token for protected streams" do
+    assert {:error, {403, _}} = start_socket("?stream=user&access_token=aaaaaaaaaaaa")
+    assert {:error, {403, _}} = start_socket("?stream=user")
+  end
+
+  test "allows public streams without authentication" do
+    assert {:ok, _} = start_socket("?stream=public")
+    assert {:ok, _} = start_socket("?stream=public:local")
+    assert {:ok, _} = start_socket("?stream=hashtag&tag=lain")
+  end
+
+  test "receives well formatted events" do
+    user = insert(:user)
+    {:ok, _} = start_socket("?stream=public")
+    {:ok, activity} = CommonAPI.post(user, %{"status" => "nice echo chamber"})
+
+    assert_receive {:text, raw_json}, 1_000
+    assert {:ok, json} = Jason.decode(raw_json)
+
+    assert "update" == json["event"]
+    assert json["payload"]
+    assert {:ok, json} = Jason.decode(json["payload"])
+
+    # Note: we remove the "statuses_count" from this result as it changes in the meantime
+
+    view_json =
+      Pleroma.Web.MastodonAPI.StatusView.render("status.json", activity: activity, for: nil)
+      |> Jason.encode!()
+      |> Jason.decode!()
+      |> put_in(["account", "statuses_count"], 0)
+
+    assert json == view_json
+  end
+
+  describe "with a valid user token" do
+    setup do
+      {:ok, app} =
+        Pleroma.Repo.insert(
+          OAuth.App.register_changeset(%OAuth.App{}, %{
+            client_name: "client",
+            scopes: "scope",
+            redirect_uris: "url"
+          })
+        )
+
+      user = insert(:user)
+
+      {:ok, auth} = OAuth.Authorization.create_authorization(app, user)
+
+      {:ok, token} = OAuth.Token.exchange_token(app, auth)
+
+      %{user: user, token: token}
+    end
+
+    test "accepts valid tokens", state do
+      assert {:ok, _} = start_socket("?stream=user&access_token=#{state.token.token}")
+    end
+  end
+end
diff --git a/test/support/websocket_client.ex b/test/support/websocket_client.ex
new file mode 100644
index 000000000..57e9bb17f
--- /dev/null
+++ b/test/support/websocket_client.ex
@@ -0,0 +1,58 @@
+defmodule Pleroma.Integration.WebsocketClient do
+  # https://github.com/phoenixframework/phoenix/blob/master/test/support/websocket_client.exs
+
+  @doc """
+  Starts the WebSocket server for given ws URL. Received Socket.Message's
+  are forwarded to the sender pid
+  """
+  def start_link(sender, url, headers \\ []) do
+    :crypto.start()
+    :ssl.start()
+
+    :websocket_client.start_link(
+      String.to_charlist(url),
+      __MODULE__,
+      [sender],
+      extra_headers: headers
+    )
+  end
+
+  @doc """
+  Closes the socket
+  """
+  def close(socket) do
+    send(socket, :close)
+  end
+
+  @doc """
+  Sends a low-level text message to the client.
+  """
+  def send_text(server_pid, msg) do
+    send(server_pid, {:text, msg})
+  end
+
+  @doc false
+  def init([sender], _conn_state) do
+    {:ok, %{sender: sender}}
+  end
+
+  @doc false
+  def websocket_handle(frame, _conn_state, state) do
+    send(state.sender, frame)
+    {:ok, state}
+  end
+
+  @doc false
+  def websocket_info({:text, msg}, _conn_state, state) do
+    {:reply, {:text, msg}, state}
+  end
+
+  def websocket_info(:close, _conn_state, _state) do
+    {:close, <<>>, "done"}
+  end
+
+  @doc false
+  def websocket_terminate(_reason, _conn_state, _state) do
+    :ok
+  end
+end
diff --git a/test/web/mastodon_api/mastodon_socket_test.exs b/test/web/mastodon_api/mastodon_socket_test.exs
deleted file mode 100644
index 5d9b96861..000000000
--- a/test/web/mastodon_api/mastodon_socket_test.exs
+++ /dev/null
@@ -1,31 +0,0 @@
-defmodule Pleroma.Web.MastodonApi.MastodonSocketTest do
-  use Pleroma.DataCase
-
-  alias Pleroma.Web.{Streamer, CommonAPI}
-
-  import Pleroma.Factory
-
-  test "public is working when non-authenticated" do
-    user = insert(:user)
-
-    task =
-      Task.async(fn ->
-        assert_receive {:text, _}, 4_000
-      end)
-
-    fake_socket = %{
-      transport_pid: task.pid,
-      assigns: %{}
-    }
-
-    topics = %{
-      "public" => [fake_socket]
-    }
-
-    {:ok, activity} = CommonAPI.post(user, %{"status" => "Test"})
-
-    Streamer.push_to_socket(topics, "public", activity)
-
-    Task.await(task)
-  end
-end