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rails--rails/actionpack/test/dispatch/session/cookie_store_test.rb
Jean Boussier c1c96a0140 Explicitly fail on attempts to write into disabled sessions
Until now `config.session_store :disabled` simply silently
discard the session hash at the end of the request.

By explictly failing on writes, it can help discovering bugs
earlier.

Reads are still permitted.
2021-05-17 20:02:52 +02:00

416 lines
12 KiB
Ruby

# frozen_string_literal: true
require "abstract_unit"
require "stringio"
require "active_support/key_generator"
require "active_support/messages/rotation_configuration"
class CookieStoreTest < ActionDispatch::IntegrationTest
SessionKey = "_myapp_session"
SessionSecret = "b3c631c314c0bbca50c1b2843150fe33"
SessionSalt = "authenticated encrypted cookie"
Generator = ActiveSupport::KeyGenerator.new(SessionSecret, iterations: 1000)
Rotations = ActiveSupport::Messages::RotationConfiguration.new
Encryptor = ActiveSupport::MessageEncryptor.new(
Generator.generate_key(SessionSalt, 32), cipher: "aes-256-gcm", serializer: Marshal
)
class TestController < ActionController::Base
def no_session_access
head :ok
end
def persistent_session_id
render plain: session[:session_id]
end
def set_session_value
session[:foo] = "bar"
render body: nil
end
def get_session_value
render plain: "foo: #{session[:foo].inspect}"
end
def get_session_id
render plain: "id: #{request.session.id&.public_id}"
end
def get_class_after_reset_session
reset_session
render plain: "class: #{session.class}"
end
def call_session_clear
session.clear
head :ok
end
def call_reset_session
reset_session
head :ok
end
def raise_data_overflow
session[:foo] = "bye!" * 1024
head :ok
end
def change_session_id
request.session.options[:id] = nil
get_session_id
end
def renew_session_id
request.session_options[:renew] = true
head :ok
end
end
def parse_cookie_from_header
cookie_matches = headers["Set-Cookie"].match(/#{SessionKey}=([^;]+)/)
cookie_matches && cookie_matches[1]
end
def assert_session_cookie(cookie_string, contents)
assert_includes headers["Set-Cookie"], cookie_string
session_value = parse_cookie_from_header
session_data = Encryptor.decrypt_and_verify(Rack::Utils.unescape(session_value)) rescue nil
assert_not_nil session_data, "session failed to decrypt"
assert_equal session_data.slice(*contents.keys), contents
end
def test_setting_session_value
with_test_route_set do
get "/set_session_value"
assert_response :success
assert_session_cookie "path=/; HttpOnly", "foo" => "bar"
end
end
def test_getting_session_value
with_test_route_set do
get "/set_session_value"
get "/get_session_value"
assert_response :success
assert_equal 'foo: "bar"', response.body
end
end
def test_getting_session_id
with_test_route_set do
get "/set_session_value"
get "/persistent_session_id"
assert_response :success
assert_equal 32, response.body.size
session_id = response.body
get "/get_session_id"
assert_response :success
assert_equal "id: #{session_id}", response.body, "should be able to read session id without accessing the session hash"
end
end
def test_disregards_tampered_sessions
with_test_route_set do
encryptor = ActiveSupport::MessageEncryptor.new("A" * 32, cipher: "aes-256-gcm", serializer: Marshal)
cookies[SessionKey] = encryptor.encrypt_and_sign({ "foo" => "bar", "session_id" => "abc" })
get "/get_session_value"
assert_response :success
assert_equal "foo: nil", response.body
end
end
def test_does_not_set_secure_cookies_over_http
with_test_route_set(secure: true) do
get "/set_session_value"
assert_response :success
assert_nil headers["Set-Cookie"]
end
end
def test_properly_renew_cookies
with_test_route_set do
get "/set_session_value"
get "/persistent_session_id"
session_id = response.body
get "/renew_session_id"
get "/persistent_session_id"
assert_not_equal response.body, session_id
end
end
def test_does_set_secure_cookies_over_https
with_test_route_set(secure: true) do
get "/set_session_value", headers: { "HTTPS" => "on" }
assert_response :success
assert_session_cookie "path=/; secure; HttpOnly", "foo" => "bar"
end
end
# {:foo=>#<SessionAutoloadTest::Foo bar:"baz">, :session_id=>"ce8b0752a6ab7c7af3cdb8a80e6b9e46"}
EncryptedSerializedCookie = "9RZ2Fij0qLveUwM4s+CCjGqhpjyUC8jiBIf/AiBr9M3TB8xh2vQZtvSOMfN3uf6oYbbpIDHAcOFIEl69FcW1ozQYeSrCLonYCazoh34ZdYskIQfGwCiSYleVXG1OD9Z4jFqeVArw4Ewm0paOOPLbN1rc6A==--I359v/KWdZ1ok0ey--JFFhuPOY7WUo6tB/eP05Aw=="
def test_deserializes_unloaded_classes_on_get_id
with_test_route_set do
with_autoload_path "session_autoload_test" do
cookies[SessionKey] = EncryptedSerializedCookie
get "/get_session_id"
assert_response :success
assert_equal "id: ce8b0752a6ab7c7af3cdb8a80e6b9e46", response.body, "should auto-load unloaded class"
end
end
end
def test_deserializes_unloaded_classes_on_get_value
with_test_route_set do
with_autoload_path "session_autoload_test" do
cookies[SessionKey] = EncryptedSerializedCookie
get "/get_session_value"
assert_response :success
assert_equal 'foo: #<SessionAutoloadTest::Foo bar:"baz">', response.body, "should auto-load unloaded class"
end
end
end
def test_close_raises_when_data_overflows
with_test_route_set do
assert_raise(ActionDispatch::Cookies::CookieOverflow) {
get "/raise_data_overflow"
}
end
end
def test_doesnt_write_session_cookie_if_session_is_not_accessed
with_test_route_set do
get "/no_session_access"
assert_response :success
assert_nil headers["Set-Cookie"]
end
end
def test_doesnt_write_session_cookie_if_session_is_unchanged
with_test_route_set do
cookies[SessionKey] = "BAh7BjoIZm9vIghiYXI%3D--" \
"fef868465920f415f2c0652d6910d3af288a0367"
get "/no_session_access"
assert_response :success
assert_nil headers["Set-Cookie"]
end
end
def test_setting_session_value_after_session_reset
with_test_route_set do
get "/set_session_value"
assert_response :success
session_payload = response.body
assert_session_cookie "path=/; HttpOnly", "foo" => "bar"
get "/call_reset_session"
assert_response :success
assert_not_equal [], headers["Set-Cookie"]
assert_not_nil headers["Set-Cookie"]
assert_not_nil session_payload
assert_not_equal session_payload, cookies[SessionKey]
get "/get_session_value"
assert_response :success
assert_equal "foo: nil", response.body
end
end
def test_class_type_after_session_reset
with_test_route_set do
get "/set_session_value"
assert_response :success
assert_session_cookie "path=/; HttpOnly", "foo" => "bar"
get "/get_class_after_reset_session"
assert_response :success
assert_not_equal [], headers["Set-Cookie"]
assert_equal "class: ActionDispatch::Request::Session", response.body
end
end
def test_getting_from_nonexistent_session
with_test_route_set do
get "/get_session_value"
assert_response :success
assert_equal "foo: nil", response.body
assert_nil headers["Set-Cookie"], "should only create session on write, not read"
end
end
def test_setting_session_value_after_session_clear
with_test_route_set do
get "/set_session_value"
assert_response :success
assert_session_cookie "path=/; HttpOnly", "foo" => "bar"
get "/call_session_clear"
assert_response :success
get "/get_session_value"
assert_response :success
assert_equal "foo: nil", response.body
end
end
def test_persistent_session_id
with_test_route_set do
get "/set_session_value"
get "/persistent_session_id"
assert_response :success
assert_equal 32, response.body.size
session_id = response.body
get "/persistent_session_id"
assert_equal session_id, response.body
reset!
get "/persistent_session_id"
assert_not_equal session_id, response.body
end
end
def test_setting_session_id_to_nil_is_respected
with_test_route_set do
get "/set_session_value"
get "/get_session_id"
sid = response.body
assert_equal 36, sid.size
get "/change_session_id"
assert_not_equal sid, response.body
end
end
def test_session_store_with_expire_after
with_test_route_set(expire_after: 5.hours) do
# First request accesses the session
time = Time.local(2008, 4, 24)
Time.stub :now, time do
expected_expiry = (time + 5.hours).gmtime.strftime("%a, %d %b %Y %H:%M:%S GMT")
get "/set_session_value"
assert_response :success
assert_session_cookie "path=/; expires=#{expected_expiry}; HttpOnly", "foo" => "bar"
end
# Second request does not access the session
time = time + 3.hours
Time.stub :now, time do
expected_expiry = (time + 5.hours).gmtime.strftime("%a, %d %b %Y %H:%M:%S GMT")
get "/no_session_access"
assert_response :success
assert_session_cookie "path=/; expires=#{expected_expiry}; HttpOnly", "foo" => "bar"
end
end
end
def test_session_store_with_expire_after_does_not_accept_expired_session
with_test_route_set(expire_after: 5.hours) do
# First request accesses the session
time = Time.local(2017, 11, 12)
Time.stub :now, time do
expected_expiry = (time + 5.hours).gmtime.strftime("%a, %d %b %Y %H:%M:%S GMT")
get "/set_session_value"
get "/get_session_value"
assert_response :success
assert_equal 'foo: "bar"', response.body
assert_session_cookie "path=/; expires=#{expected_expiry}; HttpOnly", "foo" => "bar"
end
# Second request is beyond the expiry time and the session is invalidated
time += 5.hours + 1.minute
Time.stub :now, time do
get "/get_session_value"
assert_response :success
assert_equal "foo: nil", response.body
end
end
end
def test_session_store_with_explicit_domain
with_test_route_set(domain: "example.es") do
get "/set_session_value"
assert_match(/domain=example\.es/, headers["Set-Cookie"])
headers["Set-Cookie"]
end
end
def test_session_store_without_domain
with_test_route_set do
get "/set_session_value"
assert_no_match(/domain=/, headers["Set-Cookie"])
end
end
def test_session_store_with_nil_domain
with_test_route_set(domain: nil) do
get "/set_session_value"
assert_no_match(/domain=/, headers["Set-Cookie"])
end
end
def test_session_store_with_all_domains
with_test_route_set(domain: :all) do
get "/set_session_value"
assert_match(/domain=\.example\.com/, headers["Set-Cookie"])
end
end
private
# Overwrite get to send SessionSecret in env hash
def get(path, **options)
options[:headers] ||= {}
options[:headers].tap do |config|
config["action_dispatch.secret_key_base"] = SessionSecret
config["action_dispatch.authenticated_encrypted_cookie_salt"] = SessionSalt
config["action_dispatch.use_authenticated_cookie_encryption"] = true
config["action_dispatch.key_generator"] ||= Generator
config["action_dispatch.cookies_rotations"] ||= Rotations
end
super
end
def with_test_route_set(options = {})
with_routing do |set|
set.draw do
ActiveSupport::Deprecation.silence do
get ":action", to: ::CookieStoreTest::TestController
end
end
options = { key: SessionKey }.merge!(options)
@app = self.class.build_app(set) do |middleware|
middleware.use ActionDispatch::Session::CookieStore, options
middleware.delete ActionDispatch::ShowExceptions
end
yield
end
end
end