c46d035f7b
The current rate limiter disable logic won't trigger when the remote ip is not forwarded, only when the remoteip plug is not enabled, which is not the case on most instances since it's enabled by default. This changes the behavior to warn and disable when the remote ip was not forwarded, even if the RemoteIP plug is enabled. Also closes #1620
256 lines
8.2 KiB
Elixir
256 lines
8.2 KiB
Elixir
# Pleroma: A lightweight social networking server
|
|
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
|
|
# SPDX-License-Identifier: AGPL-3.0-only
|
|
|
|
defmodule Pleroma.Plugs.RateLimiterTest do
|
|
use Pleroma.Web.ConnCase
|
|
|
|
alias Pleroma.Config
|
|
alias Pleroma.Plugs.RateLimiter
|
|
|
|
import Pleroma.Factory
|
|
import Pleroma.Tests.Helpers, only: [clear_config: 1, clear_config: 2]
|
|
|
|
# Note: each example must work with separate buckets in order to prevent concurrency issues
|
|
|
|
clear_config([Pleroma.Web.Endpoint, :http, :ip])
|
|
clear_config(:rate_limit)
|
|
|
|
describe "config" do
|
|
@limiter_name :test_init
|
|
|
|
clear_config([Pleroma.Plugs.RemoteIp, :enabled])
|
|
|
|
test "config is required for plug to work" do
|
|
Config.put([:rate_limit, @limiter_name], {1, 1})
|
|
Config.put([Pleroma.Web.Endpoint, :http, :ip], {8, 8, 8, 8})
|
|
|
|
assert %{limits: {1, 1}, name: :test_init, opts: [name: :test_init]} ==
|
|
[name: @limiter_name]
|
|
|> RateLimiter.init()
|
|
|> RateLimiter.action_settings()
|
|
|
|
assert nil ==
|
|
[name: :nonexisting_limiter]
|
|
|> RateLimiter.init()
|
|
|> RateLimiter.action_settings()
|
|
end
|
|
end
|
|
|
|
test "it is disabled if it remote ip plug is enabled but no remote ip is found" do
|
|
Config.put([Pleroma.Web.Endpoint, :http, :ip], {127, 0, 0, 1})
|
|
assert RateLimiter.disabled?(Plug.Conn.assign(build_conn(), :remote_ip_found, false))
|
|
end
|
|
|
|
test "it restricts based on config values" do
|
|
limiter_name = :test_plug_opts
|
|
scale = 80
|
|
limit = 5
|
|
|
|
Config.put([Pleroma.Web.Endpoint, :http, :ip], {8, 8, 8, 8})
|
|
Config.put([:rate_limit, limiter_name], {scale, limit})
|
|
|
|
plug_opts = RateLimiter.init(name: limiter_name)
|
|
conn = conn(:get, "/")
|
|
|
|
for i <- 1..5 do
|
|
conn = RateLimiter.call(conn, plug_opts)
|
|
assert {^i, _} = RateLimiter.inspect_bucket(conn, limiter_name, plug_opts)
|
|
Process.sleep(10)
|
|
end
|
|
|
|
conn = RateLimiter.call(conn, plug_opts)
|
|
assert %{"error" => "Throttled"} = Phoenix.ConnTest.json_response(conn, :too_many_requests)
|
|
assert conn.halted
|
|
|
|
Process.sleep(50)
|
|
|
|
conn = conn(:get, "/")
|
|
|
|
conn = RateLimiter.call(conn, plug_opts)
|
|
assert {1, 4} = RateLimiter.inspect_bucket(conn, limiter_name, plug_opts)
|
|
|
|
refute conn.status == Plug.Conn.Status.code(:too_many_requests)
|
|
refute conn.resp_body
|
|
refute conn.halted
|
|
end
|
|
|
|
describe "options" do
|
|
test "`bucket_name` option overrides default bucket name" do
|
|
limiter_name = :test_bucket_name
|
|
|
|
Config.put([:rate_limit, limiter_name], {1000, 5})
|
|
Config.put([Pleroma.Web.Endpoint, :http, :ip], {8, 8, 8, 8})
|
|
|
|
base_bucket_name = "#{limiter_name}:group1"
|
|
plug_opts = RateLimiter.init(name: limiter_name, bucket_name: base_bucket_name)
|
|
|
|
conn = conn(:get, "/")
|
|
|
|
RateLimiter.call(conn, plug_opts)
|
|
assert {1, 4} = RateLimiter.inspect_bucket(conn, base_bucket_name, plug_opts)
|
|
assert {:error, :not_found} = RateLimiter.inspect_bucket(conn, limiter_name, plug_opts)
|
|
end
|
|
|
|
test "`params` option allows different queries to be tracked independently" do
|
|
limiter_name = :test_params
|
|
Config.put([:rate_limit, limiter_name], {1000, 5})
|
|
Config.put([Pleroma.Web.Endpoint, :http, :ip], {8, 8, 8, 8})
|
|
|
|
plug_opts = RateLimiter.init(name: limiter_name, params: ["id"])
|
|
|
|
conn = conn(:get, "/?id=1")
|
|
conn = Plug.Conn.fetch_query_params(conn)
|
|
conn_2 = conn(:get, "/?id=2")
|
|
|
|
RateLimiter.call(conn, plug_opts)
|
|
assert {1, 4} = RateLimiter.inspect_bucket(conn, limiter_name, plug_opts)
|
|
assert {0, 5} = RateLimiter.inspect_bucket(conn_2, limiter_name, plug_opts)
|
|
end
|
|
|
|
test "it supports combination of options modifying bucket name" do
|
|
limiter_name = :test_options_combo
|
|
Config.put([:rate_limit, limiter_name], {1000, 5})
|
|
Config.put([Pleroma.Web.Endpoint, :http, :ip], {8, 8, 8, 8})
|
|
|
|
base_bucket_name = "#{limiter_name}:group1"
|
|
|
|
plug_opts =
|
|
RateLimiter.init(name: limiter_name, bucket_name: base_bucket_name, params: ["id"])
|
|
|
|
id = "100"
|
|
|
|
conn = conn(:get, "/?id=#{id}")
|
|
conn = Plug.Conn.fetch_query_params(conn)
|
|
conn_2 = conn(:get, "/?id=#{101}")
|
|
|
|
RateLimiter.call(conn, plug_opts)
|
|
assert {1, 4} = RateLimiter.inspect_bucket(conn, base_bucket_name, plug_opts)
|
|
assert {0, 5} = RateLimiter.inspect_bucket(conn_2, base_bucket_name, plug_opts)
|
|
end
|
|
end
|
|
|
|
describe "unauthenticated users" do
|
|
test "are restricted based on remote IP" do
|
|
limiter_name = :test_unauthenticated
|
|
Config.put([:rate_limit, limiter_name], [{1000, 5}, {1, 10}])
|
|
Config.put([Pleroma.Web.Endpoint, :http, :ip], {8, 8, 8, 8})
|
|
|
|
plug_opts = RateLimiter.init(name: limiter_name)
|
|
|
|
conn = %{conn(:get, "/") | remote_ip: {127, 0, 0, 2}}
|
|
conn_2 = %{conn(:get, "/") | remote_ip: {127, 0, 0, 3}}
|
|
|
|
for i <- 1..5 do
|
|
conn = RateLimiter.call(conn, plug_opts)
|
|
assert {^i, _} = RateLimiter.inspect_bucket(conn, limiter_name, plug_opts)
|
|
refute conn.halted
|
|
end
|
|
|
|
conn = RateLimiter.call(conn, plug_opts)
|
|
|
|
assert %{"error" => "Throttled"} = Phoenix.ConnTest.json_response(conn, :too_many_requests)
|
|
assert conn.halted
|
|
|
|
conn_2 = RateLimiter.call(conn_2, plug_opts)
|
|
assert {1, 4} = RateLimiter.inspect_bucket(conn_2, limiter_name, plug_opts)
|
|
|
|
refute conn_2.status == Plug.Conn.Status.code(:too_many_requests)
|
|
refute conn_2.resp_body
|
|
refute conn_2.halted
|
|
end
|
|
end
|
|
|
|
describe "authenticated users" do
|
|
setup do
|
|
Ecto.Adapters.SQL.Sandbox.checkout(Pleroma.Repo)
|
|
|
|
:ok
|
|
end
|
|
|
|
test "can have limits separate from unauthenticated connections" do
|
|
limiter_name = :test_authenticated1
|
|
|
|
scale = 50
|
|
limit = 5
|
|
Config.put([Pleroma.Web.Endpoint, :http, :ip], {8, 8, 8, 8})
|
|
Config.put([:rate_limit, limiter_name], [{1000, 1}, {scale, limit}])
|
|
|
|
plug_opts = RateLimiter.init(name: limiter_name)
|
|
|
|
user = insert(:user)
|
|
conn = conn(:get, "/") |> assign(:user, user)
|
|
|
|
for i <- 1..5 do
|
|
conn = RateLimiter.call(conn, plug_opts)
|
|
assert {^i, _} = RateLimiter.inspect_bucket(conn, limiter_name, plug_opts)
|
|
refute conn.halted
|
|
end
|
|
|
|
conn = RateLimiter.call(conn, plug_opts)
|
|
|
|
assert %{"error" => "Throttled"} = Phoenix.ConnTest.json_response(conn, :too_many_requests)
|
|
assert conn.halted
|
|
end
|
|
|
|
test "different users are counted independently" do
|
|
limiter_name = :test_authenticated2
|
|
Config.put([:rate_limit, limiter_name], [{1, 10}, {1000, 5}])
|
|
Config.put([Pleroma.Web.Endpoint, :http, :ip], {8, 8, 8, 8})
|
|
|
|
plug_opts = RateLimiter.init(name: limiter_name)
|
|
|
|
user = insert(:user)
|
|
conn = conn(:get, "/") |> assign(:user, user)
|
|
|
|
user_2 = insert(:user)
|
|
conn_2 = conn(:get, "/") |> assign(:user, user_2)
|
|
|
|
for i <- 1..5 do
|
|
conn = RateLimiter.call(conn, plug_opts)
|
|
assert {^i, _} = RateLimiter.inspect_bucket(conn, limiter_name, plug_opts)
|
|
end
|
|
|
|
conn = RateLimiter.call(conn, plug_opts)
|
|
assert %{"error" => "Throttled"} = Phoenix.ConnTest.json_response(conn, :too_many_requests)
|
|
assert conn.halted
|
|
|
|
conn_2 = RateLimiter.call(conn_2, plug_opts)
|
|
assert {1, 4} = RateLimiter.inspect_bucket(conn_2, limiter_name, plug_opts)
|
|
refute conn_2.status == Plug.Conn.Status.code(:too_many_requests)
|
|
refute conn_2.resp_body
|
|
refute conn_2.halted
|
|
end
|
|
end
|
|
|
|
test "doesn't crash due to a race condition when multiple requests are made at the same time and the bucket is not yet initialized" do
|
|
limiter_name = :test_race_condition
|
|
Pleroma.Config.put([:rate_limit, limiter_name], {1000, 5})
|
|
Pleroma.Config.put([Pleroma.Web.Endpoint, :http, :ip], {8, 8, 8, 8})
|
|
|
|
opts = RateLimiter.init(name: limiter_name)
|
|
|
|
conn = conn(:get, "/")
|
|
conn_2 = conn(:get, "/")
|
|
|
|
%Task{pid: pid1} =
|
|
task1 =
|
|
Task.async(fn ->
|
|
receive do
|
|
:process2_up ->
|
|
RateLimiter.call(conn, opts)
|
|
end
|
|
end)
|
|
|
|
task2 =
|
|
Task.async(fn ->
|
|
send(pid1, :process2_up)
|
|
RateLimiter.call(conn_2, opts)
|
|
end)
|
|
|
|
Task.await(task1)
|
|
Task.await(task2)
|
|
|
|
refute {:err, :not_found} == RateLimiter.inspect_bucket(conn, limiter_name, opts)
|
|
end
|
|
end
|