761 lines
17 KiB
Elixir
761 lines
17 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Pool.ConnectionsTest do
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use ExUnit.Case, async: true
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use Pleroma.Tests.Helpers
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import ExUnit.CaptureLog
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import Mox
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alias Pleroma.Gun.Conn
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alias Pleroma.GunMock
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alias Pleroma.Pool.Connections
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setup :verify_on_exit!
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setup_all do
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name = :test_connections
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{:ok, pid} = Connections.start_link({name, [checkin_timeout: 150]})
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{:ok, _} = Registry.start_link(keys: :unique, name: Pleroma.GunMock)
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on_exit(fn ->
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if Process.alive?(pid), do: GenServer.stop(name)
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end)
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{:ok, name: name}
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end
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defp open_mock(num \\ 1) do
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GunMock
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|> expect(:open, num, &start_and_register(&1, &2, &3))
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|> expect(:await_up, num, fn _, _ -> {:ok, :http} end)
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|> expect(:set_owner, num, fn _, _ -> :ok end)
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end
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defp connect_mock(mock) do
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mock
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|> expect(:connect, &connect(&1, &2))
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|> expect(:await, &await(&1, &2))
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end
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defp info_mock(mock), do: expect(mock, :info, &info(&1))
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defp start_and_register('gun-not-up.com', _, _), do: {:error, :timeout}
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defp start_and_register(host, port, _) do
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{:ok, pid} = Task.start_link(fn -> Process.sleep(1000) end)
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scheme =
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case port do
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443 -> "https"
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_ -> "http"
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end
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Registry.register(GunMock, pid, %{
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origin_scheme: scheme,
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origin_host: host,
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origin_port: port
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})
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{:ok, pid}
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end
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defp info(pid) do
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[{_, info}] = Registry.lookup(GunMock, pid)
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info
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end
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defp connect(pid, _) do
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ref = make_ref()
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Registry.register(GunMock, ref, pid)
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ref
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end
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defp await(pid, ref) do
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[{_, ^pid}] = Registry.lookup(GunMock, ref)
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{:response, :fin, 200, []}
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end
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defp now, do: :os.system_time(:second)
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describe "alive?/2" do
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test "is alive", %{name: name} do
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assert Connections.alive?(name)
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end
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test "returns false if not started" do
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refute Connections.alive?(:some_random_name)
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end
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end
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test "opens connection and reuse it on next request", %{name: name} do
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open_mock()
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url = "http://some-domain.com"
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key = "http:some-domain.com:80"
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refute Connections.checkin(url, name)
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:ok = Conn.open(url, name)
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conn = Connections.checkin(url, name)
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assert is_pid(conn)
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assert Process.alive?(conn)
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self = self()
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%Connections{
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conns: %{
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^key => %Conn{
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conn: ^conn,
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gun_state: :up,
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used_by: [{^self, _}],
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conn_state: :active
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}
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}
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} = Connections.get_state(name)
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reused_conn = Connections.checkin(url, name)
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assert conn == reused_conn
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%Connections{
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conns: %{
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^key => %Conn{
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conn: ^conn,
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gun_state: :up,
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used_by: [{^self, _}, {^self, _}],
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conn_state: :active
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}
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}
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} = Connections.get_state(name)
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:ok = Connections.checkout(conn, self, name)
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%Connections{
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conns: %{
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^key => %Conn{
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conn: ^conn,
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gun_state: :up,
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used_by: [{^self, _}],
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conn_state: :active
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}
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}
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} = Connections.get_state(name)
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:ok = Connections.checkout(conn, self, name)
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%Connections{
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conns: %{
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^key => %Conn{
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conn: ^conn,
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gun_state: :up,
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used_by: [],
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conn_state: :idle
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}
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}
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} = Connections.get_state(name)
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end
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test "reuse connection for idna domains", %{name: name} do
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open_mock()
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url = "http://ですsome-domain.com"
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refute Connections.checkin(url, name)
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:ok = Conn.open(url, name)
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conn = Connections.checkin(url, name)
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assert is_pid(conn)
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assert Process.alive?(conn)
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self = self()
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%Connections{
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conns: %{
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"http:ですsome-domain.com:80" => %Conn{
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conn: ^conn,
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gun_state: :up,
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used_by: [{^self, _}],
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conn_state: :active
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}
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}
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} = Connections.get_state(name)
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reused_conn = Connections.checkin(url, name)
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assert conn == reused_conn
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end
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test "reuse for ipv4", %{name: name} do
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open_mock()
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url = "http://127.0.0.1"
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refute Connections.checkin(url, name)
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:ok = Conn.open(url, name)
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conn = Connections.checkin(url, name)
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assert is_pid(conn)
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assert Process.alive?(conn)
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self = self()
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%Connections{
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conns: %{
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"http:127.0.0.1:80" => %Conn{
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conn: ^conn,
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gun_state: :up,
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used_by: [{^self, _}],
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conn_state: :active
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}
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}
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} = Connections.get_state(name)
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reused_conn = Connections.checkin(url, name)
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assert conn == reused_conn
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:ok = Connections.checkout(conn, self, name)
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:ok = Connections.checkout(reused_conn, self, name)
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%Connections{
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conns: %{
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"http:127.0.0.1:80" => %Conn{
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conn: ^conn,
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gun_state: :up,
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used_by: [],
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conn_state: :idle
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}
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}
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} = Connections.get_state(name)
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end
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test "reuse for ipv6", %{name: name} do
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open_mock()
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url = "http://[2a03:2880:f10c:83:face:b00c:0:25de]"
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refute Connections.checkin(url, name)
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:ok = Conn.open(url, name)
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conn = Connections.checkin(url, name)
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assert is_pid(conn)
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assert Process.alive?(conn)
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self = self()
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%Connections{
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conns: %{
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"http:2a03:2880:f10c:83:face:b00c:0:25de:80" => %Conn{
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conn: ^conn,
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gun_state: :up,
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used_by: [{^self, _}],
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conn_state: :active
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}
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}
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} = Connections.get_state(name)
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reused_conn = Connections.checkin(url, name)
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assert conn == reused_conn
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end
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test "up and down ipv4", %{name: name} do
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open_mock()
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|> info_mock()
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|> allow(self(), name)
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self = self()
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url = "http://127.0.0.1"
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:ok = Conn.open(url, name)
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conn = Connections.checkin(url, name)
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send(name, {:gun_down, conn, nil, nil, nil})
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send(name, {:gun_up, conn, nil})
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%Connections{
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conns: %{
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"http:127.0.0.1:80" => %Conn{
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conn: ^conn,
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gun_state: :up,
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used_by: [{^self, _}],
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conn_state: :active
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}
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}
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} = Connections.get_state(name)
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end
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test "up and down ipv6", %{name: name} do
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self = self()
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open_mock()
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|> info_mock()
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|> allow(self, name)
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url = "http://[2a03:2880:f10c:83:face:b00c:0:25de]"
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:ok = Conn.open(url, name)
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conn = Connections.checkin(url, name)
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send(name, {:gun_down, conn, nil, nil, nil})
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send(name, {:gun_up, conn, nil})
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%Connections{
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conns: %{
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"http:2a03:2880:f10c:83:face:b00c:0:25de:80" => %Conn{
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conn: ^conn,
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gun_state: :up,
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used_by: [{^self, _}],
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conn_state: :active
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}
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}
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} = Connections.get_state(name)
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end
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test "reuses connection based on protocol", %{name: name} do
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open_mock(2)
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http_url = "http://some-domain.com"
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http_key = "http:some-domain.com:80"
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https_url = "https://some-domain.com"
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https_key = "https:some-domain.com:443"
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refute Connections.checkin(http_url, name)
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:ok = Conn.open(http_url, name)
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conn = Connections.checkin(http_url, name)
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assert is_pid(conn)
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assert Process.alive?(conn)
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refute Connections.checkin(https_url, name)
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:ok = Conn.open(https_url, name)
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https_conn = Connections.checkin(https_url, name)
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refute conn == https_conn
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reused_https = Connections.checkin(https_url, name)
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refute conn == reused_https
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assert reused_https == https_conn
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%Connections{
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conns: %{
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^http_key => %Conn{
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conn: ^conn,
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gun_state: :up
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},
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^https_key => %Conn{
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conn: ^https_conn,
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gun_state: :up
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}
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}
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} = Connections.get_state(name)
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end
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test "connection can't get up", %{name: name} do
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expect(GunMock, :open, &start_and_register(&1, &2, &3))
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url = "http://gun-not-up.com"
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assert capture_log(fn ->
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refute Conn.open(url, name)
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refute Connections.checkin(url, name)
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end) =~
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"Received error on opening connection http://gun-not-up.com {:error, :timeout}"
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end
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test "process gun_down message and then gun_up", %{name: name} do
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self = self()
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open_mock()
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|> info_mock()
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|> allow(self, name)
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url = "http://gun-down-and-up.com"
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key = "http:gun-down-and-up.com:80"
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:ok = Conn.open(url, name)
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conn = Connections.checkin(url, name)
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assert is_pid(conn)
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assert Process.alive?(conn)
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%Connections{
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conns: %{
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^key => %Conn{
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conn: ^conn,
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gun_state: :up,
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used_by: [{^self, _}]
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}
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}
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} = Connections.get_state(name)
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send(name, {:gun_down, conn, :http, nil, nil})
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%Connections{
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conns: %{
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^key => %Conn{
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conn: ^conn,
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gun_state: :down,
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used_by: [{^self, _}]
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}
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}
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} = Connections.get_state(name)
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send(name, {:gun_up, conn, :http})
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conn2 = Connections.checkin(url, name)
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assert conn == conn2
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assert is_pid(conn2)
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assert Process.alive?(conn2)
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%Connections{
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conns: %{
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^key => %Conn{
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conn: _,
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gun_state: :up,
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used_by: [{^self, _}, {^self, _}]
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}
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}
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} = Connections.get_state(name)
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end
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test "async processes get same conn for same domain", %{name: name} do
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open_mock()
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url = "http://some-domain.com"
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:ok = Conn.open(url, name)
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tasks =
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for _ <- 1..5 do
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Task.async(fn ->
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Connections.checkin(url, name)
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end)
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end
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tasks_with_results = Task.yield_many(tasks)
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results =
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Enum.map(tasks_with_results, fn {task, res} ->
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res || Task.shutdown(task, :brutal_kill)
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end)
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conns = for {:ok, value} <- results, do: value
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%Connections{
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conns: %{
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"http:some-domain.com:80" => %Conn{
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conn: conn,
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gun_state: :up
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}
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}
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} = Connections.get_state(name)
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assert Enum.all?(conns, fn res -> res == conn end)
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end
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test "remove frequently used and idle", %{name: name} do
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open_mock(3)
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self = self()
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http_url = "http://some-domain.com"
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https_url = "https://some-domain.com"
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:ok = Conn.open(https_url, name)
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:ok = Conn.open(http_url, name)
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conn1 = Connections.checkin(https_url, name)
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[conn2 | _conns] =
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for _ <- 1..4 do
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Connections.checkin(http_url, name)
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end
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http_key = "http:some-domain.com:80"
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%Connections{
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conns: %{
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^http_key => %Conn{
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conn: ^conn2,
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gun_state: :up,
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conn_state: :active,
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used_by: [{^self, _}, {^self, _}, {^self, _}, {^self, _}]
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},
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"https:some-domain.com:443" => %Conn{
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conn: ^conn1,
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gun_state: :up,
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conn_state: :active,
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used_by: [{^self, _}]
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}
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}
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} = Connections.get_state(name)
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:ok = Connections.checkout(conn1, self, name)
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another_url = "http://another-domain.com"
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:ok = Conn.open(another_url, name)
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conn = Connections.checkin(another_url, name)
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%Connections{
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conns: %{
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"http:another-domain.com:80" => %Conn{
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conn: ^conn,
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gun_state: :up
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},
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^http_key => %Conn{
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conn: _,
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gun_state: :up
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}
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}
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} = Connections.get_state(name)
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end
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describe "with proxy" do
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test "as ip", %{name: name} do
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open_mock()
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|> connect_mock()
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url = "http://proxy-string.com"
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key = "http:proxy-string.com:80"
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:ok = Conn.open(url, name, proxy: {{127, 0, 0, 1}, 8123})
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conn = Connections.checkin(url, name)
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%Connections{
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conns: %{
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^key => %Conn{
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conn: ^conn,
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gun_state: :up
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}
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}
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} = Connections.get_state(name)
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reused_conn = Connections.checkin(url, name)
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assert reused_conn == conn
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end
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test "as host", %{name: name} do
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open_mock()
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|> connect_mock()
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url = "http://proxy-tuple-atom.com"
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:ok = Conn.open(url, name, proxy: {'localhost', 9050})
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conn = Connections.checkin(url, name)
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%Connections{
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conns: %{
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"http:proxy-tuple-atom.com:80" => %Conn{
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conn: ^conn,
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gun_state: :up
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}
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}
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} = Connections.get_state(name)
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reused_conn = Connections.checkin(url, name)
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assert reused_conn == conn
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end
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test "as ip and ssl", %{name: name} do
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open_mock()
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|> connect_mock()
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url = "https://proxy-string.com"
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:ok = Conn.open(url, name, proxy: {{127, 0, 0, 1}, 8123})
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conn = Connections.checkin(url, name)
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%Connections{
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conns: %{
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"https:proxy-string.com:443" => %Conn{
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conn: ^conn,
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gun_state: :up
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}
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}
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} = Connections.get_state(name)
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reused_conn = Connections.checkin(url, name)
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assert reused_conn == conn
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end
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test "as host and ssl", %{name: name} do
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open_mock()
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|> connect_mock()
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url = "https://proxy-tuple-atom.com"
|
|
:ok = Conn.open(url, name, proxy: {'localhost', 9050})
|
|
conn = Connections.checkin(url, name)
|
|
|
|
%Connections{
|
|
conns: %{
|
|
"https:proxy-tuple-atom.com:443" => %Conn{
|
|
conn: ^conn,
|
|
gun_state: :up
|
|
}
|
|
}
|
|
} = Connections.get_state(name)
|
|
|
|
reused_conn = Connections.checkin(url, name)
|
|
|
|
assert reused_conn == conn
|
|
end
|
|
|
|
test "with socks type", %{name: name} do
|
|
open_mock()
|
|
|
|
url = "http://proxy-socks.com"
|
|
|
|
:ok = Conn.open(url, name, proxy: {:socks5, 'localhost', 1234})
|
|
|
|
conn = Connections.checkin(url, name)
|
|
|
|
%Connections{
|
|
conns: %{
|
|
"http:proxy-socks.com:80" => %Conn{
|
|
conn: ^conn,
|
|
gun_state: :up
|
|
}
|
|
}
|
|
} = Connections.get_state(name)
|
|
|
|
reused_conn = Connections.checkin(url, name)
|
|
|
|
assert reused_conn == conn
|
|
end
|
|
|
|
test "with socks4 type and ssl", %{name: name} do
|
|
open_mock()
|
|
url = "https://proxy-socks.com"
|
|
|
|
:ok = Conn.open(url, name, proxy: {:socks4, 'localhost', 1234})
|
|
|
|
conn = Connections.checkin(url, name)
|
|
|
|
%Connections{
|
|
conns: %{
|
|
"https:proxy-socks.com:443" => %Conn{
|
|
conn: ^conn,
|
|
gun_state: :up
|
|
}
|
|
}
|
|
} = Connections.get_state(name)
|
|
|
|
reused_conn = Connections.checkin(url, name)
|
|
|
|
assert reused_conn == conn
|
|
end
|
|
end
|
|
|
|
describe "crf/3" do
|
|
setup do
|
|
crf = Connections.crf(1, 10, 1)
|
|
{:ok, crf: crf}
|
|
end
|
|
|
|
test "more used will have crf higher", %{crf: crf} do
|
|
# used 3 times
|
|
crf1 = Connections.crf(1, 10, crf)
|
|
crf1 = Connections.crf(1, 10, crf1)
|
|
|
|
# used 2 times
|
|
crf2 = Connections.crf(1, 10, crf)
|
|
|
|
assert crf1 > crf2
|
|
end
|
|
|
|
test "recently used will have crf higher on equal references", %{crf: crf} do
|
|
# used 3 sec ago
|
|
crf1 = Connections.crf(3, 10, crf)
|
|
|
|
# used 4 sec ago
|
|
crf2 = Connections.crf(4, 10, crf)
|
|
|
|
assert crf1 > crf2
|
|
end
|
|
|
|
test "equal crf on equal reference and time", %{crf: crf} do
|
|
# used 2 times
|
|
crf1 = Connections.crf(1, 10, crf)
|
|
|
|
# used 2 times
|
|
crf2 = Connections.crf(1, 10, crf)
|
|
|
|
assert crf1 == crf2
|
|
end
|
|
|
|
test "recently used will have higher crf", %{crf: crf} do
|
|
crf1 = Connections.crf(2, 10, crf)
|
|
crf1 = Connections.crf(1, 10, crf1)
|
|
|
|
crf2 = Connections.crf(3, 10, crf)
|
|
crf2 = Connections.crf(4, 10, crf2)
|
|
assert crf1 > crf2
|
|
end
|
|
end
|
|
|
|
describe "get_unused_conns/1" do
|
|
test "crf is equalent, sorting by reference", %{name: name} do
|
|
Connections.add_conn(name, "1", %Conn{
|
|
conn_state: :idle,
|
|
last_reference: now() - 1
|
|
})
|
|
|
|
Connections.add_conn(name, "2", %Conn{
|
|
conn_state: :idle,
|
|
last_reference: now()
|
|
})
|
|
|
|
assert [{"1", _unused_conn} | _others] = Connections.get_unused_conns(name)
|
|
end
|
|
|
|
test "reference is equalent, sorting by crf", %{name: name} do
|
|
Connections.add_conn(name, "1", %Conn{
|
|
conn_state: :idle,
|
|
crf: 1.999
|
|
})
|
|
|
|
Connections.add_conn(name, "2", %Conn{
|
|
conn_state: :idle,
|
|
crf: 2
|
|
})
|
|
|
|
assert [{"1", _unused_conn} | _others] = Connections.get_unused_conns(name)
|
|
end
|
|
|
|
test "higher crf and lower reference", %{name: name} do
|
|
Connections.add_conn(name, "1", %Conn{
|
|
conn_state: :idle,
|
|
crf: 3,
|
|
last_reference: now() - 1
|
|
})
|
|
|
|
Connections.add_conn(name, "2", %Conn{
|
|
conn_state: :idle,
|
|
crf: 2,
|
|
last_reference: now()
|
|
})
|
|
|
|
assert [{"2", _unused_conn} | _others] = Connections.get_unused_conns(name)
|
|
end
|
|
|
|
test "lower crf and lower reference", %{name: name} do
|
|
Connections.add_conn(name, "1", %Conn{
|
|
conn_state: :idle,
|
|
crf: 1.99,
|
|
last_reference: now() - 1
|
|
})
|
|
|
|
Connections.add_conn(name, "2", %Conn{
|
|
conn_state: :idle,
|
|
crf: 2,
|
|
last_reference: now()
|
|
})
|
|
|
|
assert [{"1", _unused_conn} | _others] = Connections.get_unused_conns(name)
|
|
end
|
|
end
|
|
|
|
test "count/1" do
|
|
name = :test_count
|
|
{:ok, _} = Connections.start_link({name, [checkin_timeout: 150]})
|
|
assert Connections.count(name) == 0
|
|
Connections.add_conn(name, "1", %Conn{conn: self()})
|
|
assert Connections.count(name) == 1
|
|
Connections.remove_conn(name, "1")
|
|
assert Connections.count(name) == 0
|
|
end
|
|
end
|