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# frozen_string_literal: true
require_relative 'spec_helper'
describe 'Rack::Attack.throttle' do
before do
@period = 60 # Use a long period; failures due to cache key rotation less likely
Rack::Attack.cache.store = ActiveSupport::Cache::MemoryStore.new
Rack::Attack.throttle('ip/sec', limit: 1, period: @period) { |req| req.ip }
end
it('should have a throttle') { Rack::Attack.throttles.key?('ip/sec') }
it_allows_ok_requests
describe 'a single request' do
before { get '/', {}, 'REMOTE_ADDR' => '1.2.3.4' }
it 'should set the counter for one request' do
key = "rack::attack:#{Time.now.to_i / @period}:ip/sec:1.2.3.4"
_(Rack::Attack.cache.store.read(key)).must_equal 1
end
it 'should populate throttle data' do
data = {
count: 1,
limit: 1,
period: @period,
epoch_time: Rack::Attack.cache.last_epoch_time.to_i,
discriminator: "1.2.3.4"
}
_(last_request.env['rack.attack.throttle_data']['ip/sec']).must_equal data
end
end
describe "with 2 requests" do
before do
2.times { get '/', {}, 'REMOTE_ADDR' => '1.2.3.4' }
end
it 'should block the last request' do
_(last_response.status).must_equal 429
end
it 'should tag the env' do
_(last_request.env['rack.attack.matched']).must_equal 'ip/sec'
_(last_request.env['rack.attack.match_type']).must_equal :throttle
_(last_request.env['rack.attack.match_data']).must_equal(
count: 2,
limit: 1,
period: @period,
epoch_time: Rack::Attack.cache.last_epoch_time.to_i,
discriminator: "1.2.3.4"
)
_(last_request.env['rack.attack.match_discriminator']).must_equal('1.2.3.4')
end
end
end
describe 'Rack::Attack.throttle with limit as proc' do
before do
@period = 60 # Use a long period; failures due to cache key rotation less likely
Rack::Attack.cache.store = ActiveSupport::Cache::MemoryStore.new
Rack::Attack.throttle('ip/sec', limit: lambda { |_req| 1 }, period: @period) { |req| req.ip }
end
it_allows_ok_requests
describe 'a single request' do
before { get '/', {}, 'REMOTE_ADDR' => '1.2.3.4' }
it 'should set the counter for one request' do
key = "rack::attack:#{Time.now.to_i / @period}:ip/sec:1.2.3.4"
_(Rack::Attack.cache.store.read(key)).must_equal 1
end
it 'should populate throttle data' do
data = {
count: 1,
limit: 1,
period: @period,
epoch_time: Rack::Attack.cache.last_epoch_time.to_i,
discriminator: "1.2.3.4"
}
_(last_request.env['rack.attack.throttle_data']['ip/sec']).must_equal data
end
end
end
describe 'Rack::Attack.throttle with period as proc' do
before do
@period = 60 # Use a long period; failures due to cache key rotation less likely
Rack::Attack.cache.store = ActiveSupport::Cache::MemoryStore.new
Rack::Attack.throttle('ip/sec', limit: lambda { |_req| 1 }, period: lambda { |_req| @period }) { |req| req.ip }
end
it_allows_ok_requests
describe 'a single request' do
before { get '/', {}, 'REMOTE_ADDR' => '1.2.3.4' }
it 'should set the counter for one request' do
key = "rack::attack:#{Time.now.to_i / @period}:ip/sec:1.2.3.4"
_(Rack::Attack.cache.store.read(key)).must_equal 1
end
it 'should populate throttle data' do
data = {
count: 1,
limit: 1,
period: @period,
epoch_time: Rack::Attack.cache.last_epoch_time.to_i,
discriminator: "1.2.3.4"
}
_(last_request.env['rack.attack.throttle_data']['ip/sec']).must_equal data
end
end
end
describe 'Rack::Attack.throttle with block retuning nil' do
before do
@period = 60
Rack::Attack.cache.store = ActiveSupport::Cache::MemoryStore.new
Rack::Attack.throttle('ip/sec', limit: 1, period: @period) { |_| nil }
end
it_allows_ok_requests
describe 'a single request' do
before { get '/', {}, 'REMOTE_ADDR' => '1.2.3.4' }
it 'should not set the counter' do
key = "rack::attack:#{Time.now.to_i / @period}:ip/sec:1.2.3.4"
assert_nil Rack::Attack.cache.store.read(key)
end
it 'should not populate throttle data' do
assert_nil last_request.env['rack.attack.throttle_data']
end
end
end
describe 'Rack::Attack.throttle with throttle_discriminator_normalizer' do
before do
@period = 60
@emails = [
"person@example.com",
"PERSON@example.com ",
" person@example.com\r\n ",
]
Rack::Attack.cache.store = ActiveSupport::Cache::MemoryStore.new
Rack::Attack.throttle('logins/email', limit: 4, period: @period) do |req|
if req.path == '/login' && req.post?
req.params['email']
end
end
end
it 'should not differentiate requests when throttle_discriminator_normalizer is enabled' do
post_logins
key = "rack::attack:#{Time.now.to_i / @period}:logins/email:person@example.com"
_(Rack::Attack.cache.store.read(key)).must_equal 3
end
it 'should differentiate requests when throttle_discriminator_normalizer is disabled' do
begin
prev = Rack::Attack.throttle_discriminator_normalizer
Rack::Attack.throttle_discriminator_normalizer = nil
post_logins
@emails.each do |email|
key = "rack::attack:#{Time.now.to_i / @period}:logins/email:#{email}"
_(Rack::Attack.cache.store.read(key)).must_equal 1
end
ensure
Rack::Attack.throttle_discriminator_normalizer = prev
end
end
def post_logins
@emails.each do |email|
post '/login', email: email
end
end
end
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