New rate limiter

This commit is contained in:
Steven Fuchs 2019-11-11 12:13:06 +00:00 committed by lain
commit 94627baa5c
16 changed files with 464 additions and 274 deletions

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@ -12,163 +12,196 @@ defmodule Pleroma.Plugs.RateLimiterTest do
# Note: each example must work with separate buckets in order to prevent concurrency issues
test "init/1" do
limiter_name = :test_init
Pleroma.Config.put([:rate_limit, limiter_name], {1, 1})
describe "config" do
test "config is required for plug to work" do
limiter_name = :test_init
Pleroma.Config.put([:rate_limit, limiter_name], {1, 1})
assert {limiter_name, {1, 1}, []} == RateLimiter.init(limiter_name)
assert nil == RateLimiter.init(:foo)
assert %{limits: {1, 1}, name: :test_init, opts: [name: :test_init]} ==
RateLimiter.init(name: limiter_name)
assert nil == RateLimiter.init(name: :foo)
end
test "it restricts based on config values" do
limiter_name = :test_opts
scale = 60
limit = 5
Pleroma.Config.put([:rate_limit, limiter_name], {scale, limit})
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)
Process.sleep(10)
end
conn = RateLimiter.call(conn, 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, opts)
assert {1, 4} = RateLimiter.inspect_bucket(conn, limiter_name, opts)
refute conn.status == Plug.Conn.Status.code(:too_many_requests)
refute conn.resp_body
refute conn.halted
end
end
test "ip/1" do
assert "127.0.0.1" == RateLimiter.ip(%{remote_ip: {127, 0, 0, 1}})
describe "options" do
test "`bucket_name` option overrides default bucket name" do
limiter_name = :test_bucket_name
Pleroma.Config.put([:rate_limit, limiter_name], {1000, 5})
base_bucket_name = "#{limiter_name}:group1"
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)
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})
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)
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})
base_bucket_name = "#{limiter_name}:group1"
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)
end
end
test "it restricts by opts" do
limiter_name = :test_opts
scale = 1000
limit = 5
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([:rate_limit, limiter_name], {scale, limit})
opts = RateLimiter.init(name: limiter_name)
opts = RateLimiter.init(limiter_name)
conn = conn(:get, "/")
bucket_name = "#{limiter_name}:#{RateLimiter.ip(conn)}"
conn = %{conn(:get, "/") | remote_ip: {127, 0, 0, 2}}
conn_2 = %{conn(:get, "/") | remote_ip: {127, 0, 0, 3}}
conn = RateLimiter.call(conn, opts)
assert {1, 4, _, _, _} = ExRated.inspect_bucket(bucket_name, scale, limit)
for i <- 1..5 do
conn = RateLimiter.call(conn, opts)
assert {^i, _} = RateLimiter.inspect_bucket(conn, limiter_name, opts)
refute conn.halted
end
conn = RateLimiter.call(conn, opts)
assert {2, 3, _, _, _} = ExRated.inspect_bucket(bucket_name, scale, limit)
conn = RateLimiter.call(conn, opts)
conn = RateLimiter.call(conn, opts)
assert {3, 2, _, _, _} = ExRated.inspect_bucket(bucket_name, scale, limit)
assert %{"error" => "Throttled"} = Phoenix.ConnTest.json_response(conn, :too_many_requests)
assert conn.halted
conn = RateLimiter.call(conn, opts)
assert {4, 1, _, _, _} = ExRated.inspect_bucket(bucket_name, scale, limit)
conn_2 = RateLimiter.call(conn_2, opts)
assert {1, 4} = RateLimiter.inspect_bucket(conn_2, limiter_name, opts)
conn = RateLimiter.call(conn, opts)
assert {5, 0, to_reset, _, _} = ExRated.inspect_bucket(bucket_name, scale, limit)
conn = RateLimiter.call(conn, opts)
assert %{"error" => "Throttled"} = Phoenix.ConnTest.json_response(conn, :too_many_requests)
assert conn.halted
Process.sleep(to_reset)
conn = conn(:get, "/")
conn = RateLimiter.call(conn, opts)
assert {1, 4, _, _, _} = ExRated.inspect_bucket(bucket_name, scale, limit)
refute conn.status == Plug.Conn.Status.code(:too_many_requests)
refute conn.resp_body
refute conn.halted
refute conn_2.status == Plug.Conn.Status.code(:too_many_requests)
refute conn_2.resp_body
refute conn_2.halted
end
end
test "`bucket_name` option overrides default bucket name" do
limiter_name = :test_bucket_name
scale = 1000
limit = 5
describe "authenticated users" do
setup do
Ecto.Adapters.SQL.Sandbox.checkout(Pleroma.Repo)
Pleroma.Config.put([:rate_limit, limiter_name], {scale, limit})
base_bucket_name = "#{limiter_name}:group1"
opts = RateLimiter.init({limiter_name, bucket_name: base_bucket_name})
:ok
end
conn = conn(:get, "/")
default_bucket_name = "#{limiter_name}:#{RateLimiter.ip(conn)}"
customized_bucket_name = "#{base_bucket_name}:#{RateLimiter.ip(conn)}"
test "can have limits seperate from unauthenticated connections" do
limiter_name = :test_authenticated
RateLimiter.call(conn, opts)
assert {1, 4, _, _, _} = ExRated.inspect_bucket(customized_bucket_name, scale, limit)
assert {0, 5, _, _, _} = ExRated.inspect_bucket(default_bucket_name, scale, limit)
end
scale = 1000
limit = 5
Pleroma.Config.put([:rate_limit, limiter_name], [{1, 10}, {scale, limit}])
test "`params` option appends specified params' values to bucket name" do
limiter_name = :test_params
scale = 1000
limit = 5
opts = RateLimiter.init(name: limiter_name)
Pleroma.Config.put([:rate_limit, limiter_name], {scale, limit})
opts = RateLimiter.init({limiter_name, params: ["id"]})
id = "1"
user = insert(:user)
conn = conn(:get, "/") |> assign(:user, user)
conn = conn(:get, "/?id=#{id}")
conn = Plug.Conn.fetch_query_params(conn)
for i <- 1..5 do
conn = RateLimiter.call(conn, opts)
assert {^i, _} = RateLimiter.inspect_bucket(conn, limiter_name, opts)
refute conn.halted
end
default_bucket_name = "#{limiter_name}:#{RateLimiter.ip(conn)}"
parametrized_bucket_name = "#{limiter_name}:#{id}:#{RateLimiter.ip(conn)}"
conn = RateLimiter.call(conn, opts)
RateLimiter.call(conn, opts)
assert {1, 4, _, _, _} = ExRated.inspect_bucket(parametrized_bucket_name, scale, limit)
assert {0, 5, _, _, _} = ExRated.inspect_bucket(default_bucket_name, scale, limit)
end
assert %{"error" => "Throttled"} = Phoenix.ConnTest.json_response(conn, :too_many_requests)
assert conn.halted
test "it supports combination of options modifying bucket name" do
limiter_name = :test_options_combo
scale = 1000
limit = 5
Process.sleep(1550)
Pleroma.Config.put([:rate_limit, limiter_name], {scale, limit})
base_bucket_name = "#{limiter_name}:group1"
opts = RateLimiter.init({limiter_name, bucket_name: base_bucket_name, params: ["id"]})
id = "100"
conn = conn(:get, "/") |> assign(:user, user)
conn = RateLimiter.call(conn, opts)
assert {1, 4} = RateLimiter.inspect_bucket(conn, limiter_name, opts)
conn = conn(:get, "/?id=#{id}")
conn = Plug.Conn.fetch_query_params(conn)
refute conn.status == Plug.Conn.Status.code(:too_many_requests)
refute conn.resp_body
refute conn.halted
end
default_bucket_name = "#{limiter_name}:#{RateLimiter.ip(conn)}"
parametrized_bucket_name = "#{base_bucket_name}:#{id}:#{RateLimiter.ip(conn)}"
test "diffrerent users are counted independently" do
limiter_name = :test_authenticated
Pleroma.Config.put([:rate_limit, limiter_name], [{1, 10}, {1000, 5}])
RateLimiter.call(conn, opts)
assert {1, 4, _, _, _} = ExRated.inspect_bucket(parametrized_bucket_name, scale, limit)
assert {0, 5, _, _, _} = ExRated.inspect_bucket(default_bucket_name, scale, limit)
end
opts = RateLimiter.init(name: limiter_name)
test "optional limits for authenticated users" do
limiter_name = :test_authenticated
Ecto.Adapters.SQL.Sandbox.checkout(Pleroma.Repo)
user = insert(:user)
conn = conn(:get, "/") |> assign(:user, user)
scale = 1000
limit = 5
Pleroma.Config.put([:rate_limit, limiter_name], [{1, 10}, {scale, limit}])
user_2 = insert(:user)
conn_2 = conn(:get, "/") |> assign(:user, user_2)
opts = RateLimiter.init(limiter_name)
for i <- 1..5 do
conn = RateLimiter.call(conn, opts)
assert {^i, _} = RateLimiter.inspect_bucket(conn, limiter_name, opts)
end
user = insert(:user)
conn = conn(:get, "/") |> assign(:user, user)
bucket_name = "#{limiter_name}:#{user.id}"
conn = RateLimiter.call(conn, opts)
assert %{"error" => "Throttled"} = Phoenix.ConnTest.json_response(conn, :too_many_requests)
assert conn.halted
conn = RateLimiter.call(conn, opts)
assert {1, 4, _, _, _} = ExRated.inspect_bucket(bucket_name, scale, limit)
conn = RateLimiter.call(conn, opts)
assert {2, 3, _, _, _} = ExRated.inspect_bucket(bucket_name, scale, limit)
conn = RateLimiter.call(conn, opts)
assert {3, 2, _, _, _} = ExRated.inspect_bucket(bucket_name, scale, limit)
conn = RateLimiter.call(conn, opts)
assert {4, 1, _, _, _} = ExRated.inspect_bucket(bucket_name, scale, limit)
conn = RateLimiter.call(conn, opts)
assert {5, 0, to_reset, _, _} = ExRated.inspect_bucket(bucket_name, scale, limit)
conn = RateLimiter.call(conn, opts)
assert %{"error" => "Throttled"} = Phoenix.ConnTest.json_response(conn, :too_many_requests)
assert conn.halted
Process.sleep(to_reset)
conn = conn(:get, "/") |> assign(:user, user)
conn = RateLimiter.call(conn, opts)
assert {1, 4, _, _, _} = ExRated.inspect_bucket(bucket_name, scale, limit)
refute conn.status == Plug.Conn.Status.code(:too_many_requests)
refute conn.resp_body
refute conn.halted
conn_2 = RateLimiter.call(conn_2, opts)
assert {1, 4} = RateLimiter.inspect_bucket(conn_2, limiter_name, opts)
refute conn_2.status == Plug.Conn.Status.code(:too_many_requests)
refute conn_2.resp_body
refute conn_2.halted
end
end
end