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# frozen_string_literal: true
require_relative "../spec_helper"
require "timecop"
describe "fail2ban" do
let(:notifications) { [] }
before do
Rack::Attack.cache.store = ActiveSupport::Cache::MemoryStore.new
Rack::Attack.blocklist("fail2ban pentesters") do |request|
Rack::Attack::Fail2Ban.filter(request.ip, maxretry: 2, findtime: 30, bantime: 60) do
request.path.include?("private-place")
end
end
end
it "returns OK for many requests to non filtered path" do
get "/"
assert_equal 200, last_response.status
get "/"
assert_equal 200, last_response.status
end
it "forbids access to private path" do
get "/private-place"
assert_equal 403, last_response.status
end
it "returns OK for non filtered path if yet not reached maxretry limit" do
get "/private-place"
assert_equal 403, last_response.status
get "/"
assert_equal 200, last_response.status
end
it "forbids all access after reaching maxretry limit" do
get "/private-place"
assert_equal 403, last_response.status
get "/private-place"
assert_equal 403, last_response.status
get "/"
assert_equal 403, last_response.status
end
it "restores access after bantime elapsed" do
get "/private-place"
assert_equal 403, last_response.status
get "/private-place"
assert_equal 403, last_response.status
get "/"
assert_equal 403, last_response.status
Timecop.travel(60) do
get "/"
assert_equal 200, last_response.status
end
end
it "does not forbid all access if maxrety condition is met but not within the findtime timespan" do
get "/private-place"
assert_equal 403, last_response.status
Timecop.travel(31) do
get "/private-place"
assert_equal 403, last_response.status
get "/"
assert_equal 200, last_response.status
end
end
it "notifies when the request is blocked" do
ActiveSupport::Notifications.subscribe("rack.attack") do |_name, _start, _finish, _id, payload|
notifications.push(payload)
end
get "/"
assert_equal 200, last_response.status
assert notifications.empty?
get "/private-place"
assert_equal 403, last_response.status
assert_equal 1, notifications.size
notification = notifications.pop
assert_equal 'fail2ban pentesters', notification[:request].env["rack.attack.matched"]
assert_equal :blocklist, notification[:request].env["rack.attack.match_type"]
get "/"
assert_equal 200, last_response.status
assert notifications.empty?
get "/private-place"
assert_equal 403, last_response.status
assert_equal 1, notifications.size
notification = notifications.pop
assert_equal 'fail2ban pentesters', notification[:request].env["rack.attack.matched"]
assert_equal :blocklist, notification[:request].env["rack.attack.match_type"]
get "/"
assert_equal 403, last_response.status
assert_equal 1, notifications.size
notification = notifications.pop
assert_equal 'fail2ban pentesters', notification[:request].env["rack.attack.matched"]
assert_equal :blocklist, notification[:request].env["rack.attack.match_type"]
end
end
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