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208 lines
6.5 KiB
Elixir
208 lines
6.5 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Plugs.RateLimiterTest do
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use ExUnit.Case, async: true
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use Plug.Test
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alias Pleroma.Plugs.RateLimiter
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import Pleroma.Factory
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# Note: each example must work with separate buckets in order to prevent concurrency issues
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describe "config" do
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test "config is required for plug to work" do
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limiter_name = :test_init
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Pleroma.Config.put([:rate_limit, limiter_name], {1, 1})
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assert %{limits: {1, 1}, name: :test_init, opts: [name: :test_init]} ==
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RateLimiter.init(name: limiter_name)
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assert nil == RateLimiter.init(name: :foo)
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end
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test "it restricts based on config values" do
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limiter_name = :test_opts
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scale = 80
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limit = 5
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Pleroma.Config.put([:rate_limit, limiter_name], {scale, limit})
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opts = RateLimiter.init(name: limiter_name)
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conn = conn(:get, "/")
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for i <- 1..5 do
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conn = RateLimiter.call(conn, opts)
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assert {^i, _} = RateLimiter.inspect_bucket(conn, limiter_name, opts)
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Process.sleep(10)
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end
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conn = RateLimiter.call(conn, opts)
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assert %{"error" => "Throttled"} = Phoenix.ConnTest.json_response(conn, :too_many_requests)
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assert conn.halted
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Process.sleep(50)
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conn = conn(:get, "/")
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conn = RateLimiter.call(conn, opts)
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assert {1, 4} = RateLimiter.inspect_bucket(conn, limiter_name, opts)
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refute conn.status == Plug.Conn.Status.code(:too_many_requests)
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refute conn.resp_body
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refute conn.halted
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end
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end
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describe "options" do
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test "`bucket_name` option overrides default bucket name" do
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limiter_name = :test_bucket_name
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Pleroma.Config.put([:rate_limit, limiter_name], {1000, 5})
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base_bucket_name = "#{limiter_name}:group1"
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opts = RateLimiter.init(name: limiter_name, bucket_name: base_bucket_name)
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conn = conn(:get, "/")
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RateLimiter.call(conn, opts)
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assert {1, 4} = RateLimiter.inspect_bucket(conn, base_bucket_name, opts)
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assert {:err, :not_found} = RateLimiter.inspect_bucket(conn, limiter_name, opts)
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end
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test "`params` option allows different queries to be tracked independently" do
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limiter_name = :test_params
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Pleroma.Config.put([:rate_limit, limiter_name], {1000, 5})
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opts = RateLimiter.init(name: limiter_name, params: ["id"])
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conn = conn(:get, "/?id=1")
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conn = Plug.Conn.fetch_query_params(conn)
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conn_2 = conn(:get, "/?id=2")
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RateLimiter.call(conn, opts)
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assert {1, 4} = RateLimiter.inspect_bucket(conn, limiter_name, opts)
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assert {0, 5} = RateLimiter.inspect_bucket(conn_2, limiter_name, opts)
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end
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test "it supports combination of options modifying bucket name" do
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limiter_name = :test_options_combo
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Pleroma.Config.put([:rate_limit, limiter_name], {1000, 5})
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base_bucket_name = "#{limiter_name}:group1"
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opts = RateLimiter.init(name: limiter_name, bucket_name: base_bucket_name, params: ["id"])
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id = "100"
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conn = conn(:get, "/?id=#{id}")
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conn = Plug.Conn.fetch_query_params(conn)
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conn_2 = conn(:get, "/?id=#{101}")
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RateLimiter.call(conn, opts)
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assert {1, 4} = RateLimiter.inspect_bucket(conn, base_bucket_name, opts)
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assert {0, 5} = RateLimiter.inspect_bucket(conn_2, base_bucket_name, opts)
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end
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end
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describe "unauthenticated users" do
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test "are restricted based on remote IP" do
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limiter_name = :test_unauthenticated
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Pleroma.Config.put([:rate_limit, limiter_name], [{1000, 5}, {1, 10}])
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opts = RateLimiter.init(name: limiter_name)
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conn = %{conn(:get, "/") | remote_ip: {127, 0, 0, 2}}
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conn_2 = %{conn(:get, "/") | remote_ip: {127, 0, 0, 3}}
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for i <- 1..5 do
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conn = RateLimiter.call(conn, opts)
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assert {^i, _} = RateLimiter.inspect_bucket(conn, limiter_name, opts)
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refute conn.halted
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end
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conn = RateLimiter.call(conn, opts)
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assert %{"error" => "Throttled"} = Phoenix.ConnTest.json_response(conn, :too_many_requests)
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assert conn.halted
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conn_2 = RateLimiter.call(conn_2, opts)
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assert {1, 4} = RateLimiter.inspect_bucket(conn_2, limiter_name, opts)
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refute conn_2.status == Plug.Conn.Status.code(:too_many_requests)
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refute conn_2.resp_body
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refute conn_2.halted
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end
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end
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describe "authenticated users" do
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setup do
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Ecto.Adapters.SQL.Sandbox.checkout(Pleroma.Repo)
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:ok
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end
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test "can have limits seperate from unauthenticated connections" do
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limiter_name = :test_authenticated
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scale = 1000
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limit = 5
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Pleroma.Config.put([:rate_limit, limiter_name], [{1, 10}, {scale, limit}])
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opts = RateLimiter.init(name: limiter_name)
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user = insert(:user)
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conn = conn(:get, "/") |> assign(:user, user)
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for i <- 1..5 do
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conn = RateLimiter.call(conn, opts)
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assert {^i, _} = RateLimiter.inspect_bucket(conn, limiter_name, opts)
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refute conn.halted
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end
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conn = RateLimiter.call(conn, opts)
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assert %{"error" => "Throttled"} = Phoenix.ConnTest.json_response(conn, :too_many_requests)
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assert conn.halted
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Process.sleep(1550)
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conn = conn(:get, "/") |> assign(:user, user)
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conn = RateLimiter.call(conn, opts)
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assert {1, 4} = RateLimiter.inspect_bucket(conn, limiter_name, opts)
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refute conn.status == Plug.Conn.Status.code(:too_many_requests)
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refute conn.resp_body
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refute conn.halted
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end
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test "diffrerent users are counted independently" do
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limiter_name = :test_authenticated
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Pleroma.Config.put([:rate_limit, limiter_name], [{1, 10}, {1000, 5}])
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opts = RateLimiter.init(name: limiter_name)
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user = insert(:user)
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conn = conn(:get, "/") |> assign(:user, user)
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user_2 = insert(:user)
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conn_2 = conn(:get, "/") |> assign(:user, user_2)
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for i <- 1..5 do
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conn = RateLimiter.call(conn, opts)
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assert {^i, _} = RateLimiter.inspect_bucket(conn, limiter_name, opts)
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end
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conn = RateLimiter.call(conn, opts)
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assert %{"error" => "Throttled"} = Phoenix.ConnTest.json_response(conn, :too_many_requests)
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assert conn.halted
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conn_2 = RateLimiter.call(conn_2, opts)
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assert {1, 4} = RateLimiter.inspect_bucket(conn_2, limiter_name, opts)
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refute conn_2.status == Plug.Conn.Status.code(:too_many_requests)
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refute conn_2.resp_body
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refute conn_2.halted
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end
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end
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end
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