discourse/spec/multisite/request_tracker_spec.rb
Martin Brennan 9174716737
DEV: Remove Discourse.redis.delete_prefixed (#22103)
This method is a huge footgun in production, since it calls
the Redis KEYS command. From the Redis documentation at
https://redis.io/commands/keys/:

> Warning: consider KEYS as a command that should only be used in
production environments with extreme care. It may ruin performance when
it is executed against large databases. This command is intended for
debugging and special operations, such as changing your keyspace layout.
Don't use KEYS in your regular application code.

Since we were only using `delete_prefixed` in specs (now that we
removed the usage in production in 24ec06ff85)
we can remove this and instead rely on `use_redis_snapshotting` on the
particular tests that need this kind of clearing functionality.
2023-06-16 12:44:35 +10:00

133 lines
4.3 KiB
Ruby

# frozen_string_literal: true
RSpec.describe "RequestTracker in multisite", type: :multisite do
before do
global_setting :skip_per_ip_rate_limit_trust_level, 2
RateLimiter.enable
RateLimiter.clear_all_global!
end
use_redis_snapshotting
def call(env, &block)
Middleware::RequestTracker.new(block).call(env)
end
def create_env(opts)
create_request_env.merge(opts)
end
shared_examples "ip rate limiters behavior" do |error_code, app_callback|
it "applies rate limits on an IP address across all sites" do
called = { default: 0, second: 0 }
test_multisite_connection("default") do
env = create_env("REMOTE_ADDR" => "123.10.71.4")
status, =
call(env) do
called[:default] += 1
app_callback&.call(env)
[200, {}, ["OK"]]
end
expect(status).to eq(200)
env = create_env("REMOTE_ADDR" => "123.10.71.4")
status, headers =
call(env) do
called[:default] += 1
app_callback&.call(env)
[200, {}, ["OK"]]
end
expect(status).to eq(429)
expect(headers["Discourse-Rate-Limit-Error-Code"]).to eq(error_code)
expect(called[:default]).to eq(1)
end
test_multisite_connection("second") do
env = create_env("REMOTE_ADDR" => "123.10.71.4")
status, headers =
call(env) do
called[:second] += 1
app_callback&.call(env)
[200, {}, ["OK"]]
end
expect(status).to eq(429)
expect(headers["Discourse-Rate-Limit-Error-Code"]).to eq(error_code)
expect(called[:second]).to eq(0)
end
end
end
shared_examples "user id rate limiters behavior" do |error_code, app_callback|
it "does not leak rate limits for a user id to other sites" do
cookie = create_auth_cookie(token: SecureRandom.hex, user_id: 1, trust_level: 2)
called = { default: 0, second: 0 }
test_multisite_connection("default") do
env = create_env("REMOTE_ADDR" => "123.10.71.4", "HTTP_COOKIE" => "_t=#{cookie}")
status, =
call(env) do
called[:default] += 1
app_callback&.call(env)
[200, {}, ["OK"]]
end
expect(status).to eq(200)
env = create_env("REMOTE_ADDR" => "123.10.71.4", "HTTP_COOKIE" => "_t=#{cookie}")
status, headers, =
call(env) do
called[:default] += 1
app_callback&.call(env)
[200, {}, ["OK"]]
end
expect(status).to eq(429)
expect(headers["Discourse-Rate-Limit-Error-Code"]).to eq(error_code)
expect(called[:default]).to eq(1)
end
test_multisite_connection("second") do
env = create_env("REMOTE_ADDR" => "123.10.71.4", "HTTP_COOKIE" => "_t=#{cookie}")
status, =
call(env) do
called[:second] += 1
app_callback&.call(env)
[200, {}, ["OK"]]
end
expect(status).to eq(200)
env = create_env("REMOTE_ADDR" => "123.10.71.4", "HTTP_COOKIE" => "_t=#{cookie}")
status, headers, =
call(env) do
called[:second] += 1
app_callback&.call(env)
[200, {}, ["OK"]]
end
expect(status).to eq(429)
expect(headers["Discourse-Rate-Limit-Error-Code"]).to eq(error_code)
expect(called[:second]).to eq(1)
end
end
end
context "with a 10 seconds limiter" do
before { global_setting :max_reqs_per_ip_per_10_seconds, 1 }
include_examples "ip rate limiters behavior", "ip_10_secs_limit"
include_examples "user id rate limiters behavior", "id_10_secs_limit"
end
context "with a 60 seconds limiter" do
before { global_setting :max_reqs_per_ip_per_minute, 1 }
include_examples "ip rate limiters behavior", "ip_60_secs_limit"
include_examples "user id rate limiters behavior", "id_60_secs_limit"
end
context "with assets 10 seconds limiter" do
before { global_setting :max_asset_reqs_per_ip_per_10_seconds, 1 }
app_callback = ->(env) { env["DISCOURSE_IS_ASSET_PATH"] = true }
include_examples "ip rate limiters behavior", "ip_assets_10_secs_limit", app_callback
include_examples "user id rate limiters behavior", "id_assets_10_secs_limit", app_callback
end
end