Merge branch 'rate-limiter-runtime-settings' into 'develop'

RateLimiter improvements: runtime configurability, no default limits in tests

See merge request pleroma/pleroma!2250

config/test.exs

@@ -74,11 +74,7 @@
   total_user_limit: 3,
   enabled: false
 
-config :pleroma, :rate_limit,
-  search: [{1000, 30}, {1000, 30}],
-  app_account_creation: {10_000, 5},
-  password_reset: {1000, 30},
-  ap_routes: nil
+config :pleroma, :rate_limit, %{}
 
 config :pleroma, :http_security, report_uri: "https://endpoint.com"
 

docs/configuration/i2p.md

@@ -123,7 +123,7 @@ In addition to that, replace the existing nginx config's contents with the examp
 
 If not an I2P-only instance, add the nginx config below to your existing config at `/etc/nginx/sites-enabled/pleroma.nginx`.
 
-And for both cases, disable CSP in Pleroma's config (STS is disabled by default) so you can define those yourself seperately from the clearnet (if your instance is also on the clearnet).
+And for both cases, disable CSP in Pleroma's config (STS is disabled by default) so you can define those yourself separately from the clearnet (if your instance is also on the clearnet).
 Copy the following into the `config/prod.secret.exs` in your Pleroma folder (/home/pleroma/pleroma/):
 ```
 config :pleroma, :http_security,

docs/configuration/onion_federation.md

@@ -75,7 +75,7 @@ If not a Tor-only instance,
 add the nginx config below to your existing config at `/etc/nginx/sites-enabled/pleroma.nginx`.
 
 ---
-For both cases, disable CSP in Pleroma's config (STS is disabled by default) so you can define those yourself seperately from the clearnet (if your instance is also on the clearnet).
+For both cases, disable CSP in Pleroma's config (STS is disabled by default) so you can define those yourself separately from the clearnet (if your instance is also on the clearnet).
 Copy the following into the `config/prod.secret.exs` in your Pleroma folder (/home/pleroma/pleroma/):
 ```
 config :pleroma, :http_security,

lib/pleroma/plugs/rate_limiter/rate_limiter.ex

@@ -7,12 +7,14 @@ defmodule Pleroma.Plugs.RateLimiter do
 
   ## Configuration
 
-  A keyword list of rate limiters where a key is a limiter name and value is the limiter configuration. The basic configuration is a tuple where:
+  A keyword list of rate limiters where a key is a limiter name and value is the limiter configuration.
+  The basic configuration is a tuple where:
 
   * The first element: `scale` (Integer). The time scale in milliseconds.
   * The second element: `limit` (Integer). How many requests to limit in the time scale provided.
 
-  It is also possible to have different limits for unauthenticated and authenticated users: the keyword value must be a list of two tuples where the first one is a config for unauthenticated users and the second one is for authenticated.
+  It is also possible to have different limits for unauthenticated and authenticated users: the keyword value must be a
+  list of two tuples where the first one is a config for unauthenticated users and the second one is for authenticated.
 
   To disable a limiter set its value to `nil`.
 
@@ -64,91 +66,102 @@ defmodule Pleroma.Plugs.RateLimiter do
   import Pleroma.Web.TranslationHelpers
   import Plug.Conn
 
+  alias Pleroma.Config
   alias Pleroma.Plugs.RateLimiter.LimiterSupervisor
   alias Pleroma.User
 
   require Logger
 
-  def init(opts) do
-    limiter_name = Keyword.get(opts, :name)
-
-    case Pleroma.Config.get([:rate_limit, limiter_name]) do
-      nil ->
-        nil
-
-      config ->
-        name_root = Keyword.get(opts, :bucket_name, limiter_name)
+  @doc false
+  def init(plug_opts) do
+    plug_opts
+  end
 
-        %{
-          name: name_root,
-          limits: config,
-          opts: opts
-        }
+  def call(conn, plug_opts) do
+    if disabled?() do
+      handle_disabled(conn)
+    else
+      action_settings = action_settings(plug_opts)
+      handle(conn, action_settings)
     end
   end
 
-  # Do not limit if there is no limiter configuration
-  def call(conn, nil), do: conn
+  defp handle_disabled(conn) do
+    if Config.get(:env) == :prod do
+      Logger.warn("Rate limiter is disabled for localhost/socket")
+    end
+
+    conn
+  end
 
-  def call(conn, settings) do
-    case disabled?() do
-      true ->
-        if Pleroma.Config.get(:env) == :prod,
-          do: Logger.warn("Rate limiter is disabled for localhost/socket")
+  defp handle(conn, nil), do: conn
 
+  defp handle(conn, action_settings) do
+    action_settings
+    |> incorporate_conn_info(conn)
+    |> check_rate()
+    |> case do
+      {:ok, _count} ->
         conn
 
-      false ->
-        settings
-        |> incorporate_conn_info(conn)
-        |> check_rate()
-        |> case do
-          {:ok, _count} ->
-            conn
-
-          {:error, _count} ->
-            render_throttled_error(conn)
-        end
+      {:error, _count} ->
+        render_throttled_error(conn)
     end
   end
 
   def disabled? do
     localhost_or_socket =
-      Pleroma.Config.get([Pleroma.Web.Endpoint, :http, :ip])
+      Config.get([Pleroma.Web.Endpoint, :http, :ip])
       |> Tuple.to_list()
       |> Enum.join(".")
       |> String.match?(~r/^local|^127.0.0.1/)
 
-    remote_ip_disabled = not Pleroma.Config.get([Pleroma.Plugs.RemoteIp, :enabled])
+    remote_ip_disabled = not Config.get([Pleroma.Plugs.RemoteIp, :enabled])
 
     localhost_or_socket and remote_ip_disabled
   end
 
-  def inspect_bucket(conn, name_root, settings) do
-    settings =
-      settings
-      |> incorporate_conn_info(conn)
+  @inspect_bucket_not_found {:error, :not_found}
 
-    bucket_name = make_bucket_name(%{settings | name: name_root})
-    key_name = make_key_name(settings)
-    limit = get_limits(settings)
+  def inspect_bucket(conn, bucket_name_root, plug_opts) do
+    with %{name: _} = action_settings <- action_settings(plug_opts) do
+      action_settings = incorporate_conn_info(action_settings, conn)
+      bucket_name = make_bucket_name(%{action_settings | name: bucket_name_root})
+      key_name = make_key_name(action_settings)
+      limit = get_limits(action_settings)
 
-    case Cachex.get(bucket_name, key_name) do
-      {:error, :no_cache} ->
-        {:err, :not_found}
+      case Cachex.get(bucket_name, key_name) do
+        {:error, :no_cache} ->
+          @inspect_bucket_not_found
+
+        {:ok, nil} ->
+          {0, limit}
+
+        {:ok, value} ->
+          {value, limit - value}
+      end
+    else
+      _ -> @inspect_bucket_not_found
+    end
+  end
 
-      {:ok, nil} ->
-        {0, limit}
+  def action_settings(plug_opts) do
+    with limiter_name when is_atom(limiter_name) <- plug_opts[:name],
+         limits when not is_nil(limits) <- Config.get([:rate_limit, limiter_name]) do
+      bucket_name_root = Keyword.get(plug_opts, :bucket_name, limiter_name)
 
-      {:ok, value} ->
-        {value, limit - value}
+      %{
+        name: bucket_name_root,
+        limits: limits,
+        opts: plug_opts
+      }
     end
   end
 
-  defp check_rate(settings) do
-    bucket_name = make_bucket_name(settings)
-    key_name = make_key_name(settings)
-    limit = get_limits(settings)
+  defp check_rate(action_settings) do
+    bucket_name = make_bucket_name(action_settings)
+    key_name = make_key_name(action_settings)
+    limit = get_limits(action_settings)
 
     case Cachex.get_and_update(bucket_name, key_name, &increment_value(&1, limit)) do
       {:commit, value} ->
@@ -158,8 +171,8 @@ defp check_rate(settings) do
         {:error, value}
 
       {:error, :no_cache} ->
-        initialize_buckets(settings)
-        check_rate(settings)
+        initialize_buckets(action_settings)
+        check_rate(action_settings)
     end
   end
 
@@ -169,16 +182,19 @@ defp increment_value(val, limit) when val >= limit, do: {:ignore, val}
 
   defp increment_value(val, _limit), do: {:commit, val + 1}
 
-  defp incorporate_conn_info(settings, %{assigns: %{user: %User{id: user_id}}, params: params}) do
-    Map.merge(settings, %{
+  defp incorporate_conn_info(action_settings, %{
+         assigns: %{user: %User{id: user_id}},
+         params: params
+       }) do
+    Map.merge(action_settings, %{
       mode: :user,
       conn_params: params,
       conn_info: "#{user_id}"
     })
   end
 
-  defp incorporate_conn_info(settings, %{params: params} = conn) do
-    Map.merge(settings, %{
+  defp incorporate_conn_info(action_settings, %{params: params} = conn) do
+    Map.merge(action_settings, %{
       mode: :anon,
       conn_params: params,
       conn_info: "#{ip(conn)}"
@@ -197,10 +213,10 @@ defp render_throttled_error(conn) do
     |> halt()
   end
 
-  defp make_key_name(settings) do
+  defp make_key_name(action_settings) do
     ""
-    |> attach_params(settings)
-    |> attach_identity(settings)
+    |> attach_selected_params(action_settings)
+    |> attach_identity(action_settings)
   end
 
   defp get_scale(_, {scale, _}), do: scale
@@ -215,21 +231,23 @@ defp get_limits(%{mode: :user, limits: [_, {_, limit}]}), do: limit
 
   defp get_limits(%{limits: [{_, limit}, _]}), do: limit
 
-  defp make_bucket_name(%{mode: :user, name: name_root}),
-    do: user_bucket_name(name_root)
+  defp make_bucket_name(%{mode: :user, name: bucket_name_root}),
+    do: user_bucket_name(bucket_name_root)
 
-  defp make_bucket_name(%{mode: :anon, name: name_root}),
-    do: anon_bucket_name(name_root)
+  defp make_bucket_name(%{mode: :anon, name: bucket_name_root}),
+    do: anon_bucket_name(bucket_name_root)
 
-  defp attach_params(input, %{conn_params: conn_params, opts: opts}) do
-    param_string =
-      opts
+  defp attach_selected_params(input, %{conn_params: conn_params, opts: plug_opts}) do
+    params_string =
+      plug_opts
       |> Keyword.get(:params, [])
       |> Enum.sort()
       |> Enum.map(&Map.get(conn_params, &1, ""))
       |> Enum.join(":")
 
-    "#{input}#{param_string}"
+    [input, params_string]
+    |> Enum.join(":")
+    |> String.replace_leading(":", "")
   end
 
   defp initialize_buckets(%{name: _name, limits: nil}), do: :ok
@@ -245,6 +263,6 @@ defp attach_identity(base, %{mode: :user, conn_info: conn_info}),
   defp attach_identity(base, %{mode: :anon, conn_info: conn_info}),
     do: "ip:#{base}:#{conn_info}"
 
-  defp user_bucket_name(name_root), do: "user:#{name_root}" |> String.to_atom()
-  defp anon_bucket_name(name_root), do: "anon:#{name_root}" |> String.to_atom()
+  defp user_bucket_name(bucket_name_root), do: "user:#{bucket_name_root}" |> String.to_atom()
+  defp anon_bucket_name(bucket_name_root), do: "anon:#{bucket_name_root}" |> String.to_atom()
 end

test/plugs/rate_limiter_test.exs

@@ -6,69 +6,79 @@ defmodule Pleroma.Plugs.RateLimiterTest do
   use ExUnit.Case, async: true
   use Plug.Test
 
+  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
-      limiter_name = :test_init
-      Pleroma.Config.put([:rate_limit, limiter_name], {1, 1})
-      Pleroma.Config.put([Pleroma.Web.Endpoint, :http, :ip], {8, 8, 8, 8})
+      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]} ==
-               RateLimiter.init(name: limiter_name)
-
-      assert nil == RateLimiter.init(name: :foo)
+               [name: @limiter_name]
+               |> RateLimiter.init()
+               |> RateLimiter.action_settings()
+
+      assert nil ==
+               [name: :nonexisting_limiter]
+               |> RateLimiter.init()
+               |> RateLimiter.action_settings()
     end
 
     test "it is disabled for localhost" do
-      limiter_name = :test_init
-      Pleroma.Config.put([:rate_limit, limiter_name], {1, 1})
-      Pleroma.Config.put([Pleroma.Web.Endpoint, :http, :ip], {127, 0, 0, 1})
-      Pleroma.Config.put([Pleroma.Plugs.RemoteIp, :enabled], false)
+      Config.put([:rate_limit, @limiter_name], {1, 1})
+      Config.put([Pleroma.Web.Endpoint, :http, :ip], {127, 0, 0, 1})
+      Config.put([Pleroma.Plugs.RemoteIp, :enabled], false)
 
       assert RateLimiter.disabled?() == true
     end
 
     test "it is disabled for socket" do
-      limiter_name = :test_init
-      Pleroma.Config.put([:rate_limit, limiter_name], {1, 1})
-      Pleroma.Config.put([Pleroma.Web.Endpoint, :http, :ip], {:local, "/path/to/pleroma.sock"})
-      Pleroma.Config.put([Pleroma.Plugs.RemoteIp, :enabled], false)
+      Config.put([:rate_limit, @limiter_name], {1, 1})
+      Config.put([Pleroma.Web.Endpoint, :http, :ip], {:local, "/path/to/pleroma.sock"})
+      Config.put([Pleroma.Plugs.RemoteIp, :enabled], false)
 
       assert RateLimiter.disabled?() == true
     end
 
     test "it is enabled for socket when remote ip is enabled" do
-      limiter_name = :test_init
-      Pleroma.Config.put([:rate_limit, limiter_name], {1, 1})
-      Pleroma.Config.put([Pleroma.Web.Endpoint, :http, :ip], {:local, "/path/to/pleroma.sock"})
-      Pleroma.Config.put([Pleroma.Plugs.RemoteIp, :enabled], true)
+      Config.put([:rate_limit, @limiter_name], {1, 1})
+      Config.put([Pleroma.Web.Endpoint, :http, :ip], {:local, "/path/to/pleroma.sock"})
+      Config.put([Pleroma.Plugs.RemoteIp, :enabled], true)
 
       assert RateLimiter.disabled?() == false
     end
 
     test "it restricts based on config values" do
-      limiter_name = :test_opts
+      limiter_name = :test_plug_opts
       scale = 80
       limit = 5
 
-      Pleroma.Config.put([Pleroma.Web.Endpoint, :http, :ip], {8, 8, 8, 8})
-      Pleroma.Config.put([:rate_limit, limiter_name], {scale, limit})
+      Config.put([Pleroma.Web.Endpoint, :http, :ip], {8, 8, 8, 8})
+      Config.put([:rate_limit, limiter_name], {scale, limit})
 
-      opts = RateLimiter.init(name: limiter_name)
+      plug_opts = RateLimiter.init(name: limiter_name)
       conn = conn(:get, "/")
 
       for i <- 1..5 do
-        conn = RateLimiter.call(conn, opts)
-        assert {^i, _} = RateLimiter.inspect_bucket(conn, limiter_name, opts)
+        conn = RateLimiter.call(conn, plug_opts)
+        assert {^i, _} = RateLimiter.inspect_bucket(conn, limiter_name, plug_opts)
         Process.sleep(10)
       end
 
-      conn = RateLimiter.call(conn, opts)
+      conn = RateLimiter.call(conn, plug_opts)
       assert %{"error" => "Throttled"} = Phoenix.ConnTest.json_response(conn, :too_many_requests)
       assert conn.halted
 
@@ -76,8 +86,8 @@ test "it restricts based on config values" do
 
       conn = conn(:get, "/")
 
-      conn = RateLimiter.call(conn, opts)
-      assert {1, 4} = RateLimiter.inspect_bucket(conn, limiter_name, opts)
+      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
@@ -89,78 +99,81 @@ test "it restricts based on config values" do
     test "`bucket_name` option overrides default bucket name" do
       limiter_name = :test_bucket_name
 
-      Pleroma.Config.put([:rate_limit, limiter_name], {1000, 5})
-      Pleroma.Config.put([Pleroma.Web.Endpoint, :http, :ip], {8, 8, 8, 8})
+      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"
-      opts = RateLimiter.init(name: limiter_name, bucket_name: base_bucket_name)
+      plug_opts = RateLimiter.init(name: limiter_name, bucket_name: base_bucket_name)
 
       conn = conn(:get, "/")
 
-      RateLimiter.call(conn, opts)
-      assert {1, 4} = RateLimiter.inspect_bucket(conn, base_bucket_name, opts)
-      assert {:err, :not_found} = RateLimiter.inspect_bucket(conn, limiter_name, opts)
+      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
-      Pleroma.Config.put([:rate_limit, limiter_name], {1000, 5})
-      Pleroma.Config.put([Pleroma.Web.Endpoint, :http, :ip], {8, 8, 8, 8})
+      Config.put([:rate_limit, limiter_name], {1000, 5})
+      Config.put([Pleroma.Web.Endpoint, :http, :ip], {8, 8, 8, 8})
 
-      opts = RateLimiter.init(name: limiter_name, params: ["id"])
+      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, opts)
-      assert {1, 4} = RateLimiter.inspect_bucket(conn, limiter_name, opts)
-      assert {0, 5} = RateLimiter.inspect_bucket(conn_2, limiter_name, opts)
+      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
-      Pleroma.Config.put([:rate_limit, limiter_name], {1000, 5})
-      Pleroma.Config.put([Pleroma.Web.Endpoint, :http, :ip], {8, 8, 8, 8})
+      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"
-      opts = RateLimiter.init(name: limiter_name, bucket_name: base_bucket_name, params: ["id"])
+
+      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, opts)
-      assert {1, 4} = RateLimiter.inspect_bucket(conn, base_bucket_name, opts)
-      assert {0, 5} = RateLimiter.inspect_bucket(conn_2, base_bucket_name, opts)
+      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
-      Pleroma.Config.put([:rate_limit, limiter_name], [{1000, 5}, {1, 10}])
-      Pleroma.Config.put([Pleroma.Web.Endpoint, :http, :ip], {8, 8, 8, 8})
+      Config.put([:rate_limit, limiter_name], [{1000, 5}, {1, 10}])
+      Config.put([Pleroma.Web.Endpoint, :http, :ip], {8, 8, 8, 8})
 
-      opts = RateLimiter.init(name: limiter_name)
+      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, opts)
-        assert {^i, _} = RateLimiter.inspect_bucket(conn, limiter_name, opts)
+        conn = RateLimiter.call(conn, plug_opts)
+        assert {^i, _} = RateLimiter.inspect_bucket(conn, limiter_name, plug_opts)
         refute conn.halted
       end
 
-      conn = RateLimiter.call(conn, opts)
+      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, opts)
-      assert {1, 4} = RateLimiter.inspect_bucket(conn_2, limiter_name, opts)
+      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
@@ -175,37 +188,37 @@ test "are restricted based on remote IP" do
       :ok
     end
 
-    test "can have limits seperate from unauthenticated connections" do
-      limiter_name = :test_authenticated
+    test "can have limits separate from unauthenticated connections" do
+      limiter_name = :test_authenticated1
 
       scale = 50
       limit = 5
-      Pleroma.Config.put([Pleroma.Web.Endpoint, :http, :ip], {8, 8, 8, 8})
-      Pleroma.Config.put([:rate_limit, limiter_name], [{1000, 1}, {scale, limit}])
+      Config.put([Pleroma.Web.Endpoint, :http, :ip], {8, 8, 8, 8})
+      Config.put([:rate_limit, limiter_name], [{1000, 1}, {scale, limit}])
 
-      opts = RateLimiter.init(name: limiter_name)
+      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, opts)
-        assert {^i, _} = RateLimiter.inspect_bucket(conn, limiter_name, opts)
+        conn = RateLimiter.call(conn, plug_opts)
+        assert {^i, _} = RateLimiter.inspect_bucket(conn, limiter_name, plug_opts)
         refute conn.halted
       end
 
-      conn = RateLimiter.call(conn, opts)
+      conn = RateLimiter.call(conn, plug_opts)
 
       assert %{"error" => "Throttled"} = Phoenix.ConnTest.json_response(conn, :too_many_requests)
       assert conn.halted
     end
 
-    test "diffrerent users are counted independently" do
-      limiter_name = :test_authenticated
-      Pleroma.Config.put([:rate_limit, limiter_name], [{1, 10}, {1000, 5}])
-      Pleroma.Config.put([Pleroma.Web.Endpoint, :http, :ip], {8, 8, 8, 8})
+    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})
 
-      opts = RateLimiter.init(name: limiter_name)
+      plug_opts = RateLimiter.init(name: limiter_name)
 
       user = insert(:user)
       conn = conn(:get, "/") |> assign(:user, user)
@@ -214,16 +227,16 @@ test "diffrerent users are counted independently" do
       conn_2 = conn(:get, "/") |> assign(:user, user_2)
 
       for i <- 1..5 do
-        conn = RateLimiter.call(conn, opts)
-        assert {^i, _} = RateLimiter.inspect_bucket(conn, limiter_name, opts)
+        conn = RateLimiter.call(conn, plug_opts)
+        assert {^i, _} = RateLimiter.inspect_bucket(conn, limiter_name, plug_opts)
       end
 
-      conn = RateLimiter.call(conn, opts)
+      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, opts)
-      assert {1, 4} = RateLimiter.inspect_bucket(conn_2, limiter_name, opts)
+      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

test/web/mastodon_api/controllers/account_controller_test.exs

@@ -673,10 +673,48 @@ test "returns error when user already registred", %{conn: conn, valid_params: va
       assert json_response(res, 400) == %{"error" => "{\"email\":[\"has already been taken\"]}"}
     end
 
-    clear_config([Pleroma.Plugs.RemoteIp, :enabled])
+    test "returns bad_request if missing required params", %{
+      conn: conn,
+      valid_params: valid_params
+    } do
+      app_token = insert(:oauth_token, user: nil)
 
-    test "rate limit", %{conn: conn} do
+      conn = put_req_header(conn, "authorization", "Bearer " <> app_token.token)
+
+      res = post(conn, "/api/v1/accounts", valid_params)
+      assert json_response(res, 200)
+
+      [{127, 0, 0, 1}, {127, 0, 0, 2}, {127, 0, 0, 3}, {127, 0, 0, 4}]
+      |> Stream.zip(valid_params)
+      |> Enum.each(fn {ip, {attr, _}} ->
+        res =
+          conn
+          |> Map.put(:remote_ip, ip)
+          |> post("/api/v1/accounts", Map.delete(valid_params, attr))
+          |> json_response(400)
+
+        assert res == %{"error" => "Missing parameters"}
+      end)
+    end
+
+    test "returns forbidden if token is invalid", %{conn: conn, valid_params: valid_params} do
+      conn = put_req_header(conn, "authorization", "Bearer " <> "invalid-token")
+
+      res = post(conn, "/api/v1/accounts", valid_params)
+      assert json_response(res, 403) == %{"error" => "Invalid credentials"}
+    end
+  end
+
+  describe "create account by app / rate limit" do
+    clear_config([Pleroma.Plugs.RemoteIp, :enabled]) do
       Pleroma.Config.put([Pleroma.Plugs.RemoteIp, :enabled], true)
+    end
+
+    clear_config([:rate_limit, :app_account_creation]) do
+      Pleroma.Config.put([:rate_limit, :app_account_creation], {10_000, 2})
+    end
+
+    test "respects rate limit setting", %{conn: conn} do
       app_token = insert(:oauth_token, user: nil)
 
       conn =
@@ -684,7 +722,7 @@ test "rate limit", %{conn: conn} do
         |> put_req_header("authorization", "Bearer " <> app_token.token)
         |> Map.put(:remote_ip, {15, 15, 15, 15})
 
-      for i <- 1..5 do
+      for i <- 1..2 do
         conn =
           post(conn, "/api/v1/accounts", %{
             username: "#{i}lain",
@@ -718,37 +756,6 @@ test "rate limit", %{conn: conn} do
 
       assert json_response(conn, :too_many_requests) == %{"error" => "Throttled"}
     end
-
-    test "returns bad_request if missing required params", %{
-      conn: conn,
-      valid_params: valid_params
-    } do
-      app_token = insert(:oauth_token, user: nil)
-
-      conn = put_req_header(conn, "authorization", "Bearer " <> app_token.token)
-
-      res = post(conn, "/api/v1/accounts", valid_params)
-      assert json_response(res, 200)
-
-      [{127, 0, 0, 1}, {127, 0, 0, 2}, {127, 0, 0, 3}, {127, 0, 0, 4}]
-      |> Stream.zip(valid_params)
-      |> Enum.each(fn {ip, {attr, _}} ->
-        res =
-          conn
-          |> Map.put(:remote_ip, ip)
-          |> post("/api/v1/accounts", Map.delete(valid_params, attr))
-          |> json_response(400)
-
-        assert res == %{"error" => "Missing parameters"}
-      end)
-    end
-
-    test "returns forbidden if token is invalid", %{conn: conn, valid_params: valid_params} do
-      conn = put_req_header(conn, "authorization", "Bearer " <> "invalid-token")
-
-      res = post(conn, "/api/v1/accounts", valid_params)
-      assert json_response(res, 403) == %{"error" => "Invalid credentials"}
-    end
   end
 
   describe "GET /api/v1/accounts/:id/lists - account_lists" do