debian-mirror-gitlab/spec/models/hooks/web_hook_spec.rb
2022-08-13 15:12:31 +05:30

645 lines
20 KiB
Ruby

# frozen_string_literal: true
require 'spec_helper'
RSpec.describe WebHook do
include AfterNextHelpers
let_it_be(:project) { create(:project) }
let(:hook) { build(:project_hook, project: project) }
around do |example|
if example.metadata[:skip_freeze_time]
example.run
else
freeze_time { example.run }
end
end
describe 'associations' do
it { is_expected.to have_many(:web_hook_logs) }
end
describe 'validations' do
it { is_expected.to validate_presence_of(:url) }
describe 'url_variables' do
it { is_expected.to allow_value({}).for(:url_variables) }
it { is_expected.to allow_value({ 'foo' => 'bar' }).for(:url_variables) }
it { is_expected.to allow_value({ 'FOO' => 'bar' }).for(:url_variables) }
it { is_expected.to allow_value({ 'MY_TOKEN' => 'bar' }).for(:url_variables) }
it { is_expected.to allow_value({ 'foo2' => 'bar' }).for(:url_variables) }
it { is_expected.to allow_value({ 'x' => 'y' }).for(:url_variables) }
it { is_expected.to allow_value({ 'x' => ('a' * 100) }).for(:url_variables) }
it { is_expected.to allow_value({ 'foo' => 'bar', 'bar' => 'baz' }).for(:url_variables) }
it { is_expected.to allow_value((1..20).to_h { ["k#{_1}", 'value'] }).for(:url_variables) }
it { is_expected.not_to allow_value([]).for(:url_variables) }
it { is_expected.not_to allow_value({ 'foo' => 1 }).for(:url_variables) }
it { is_expected.not_to allow_value({ 'bar' => :baz }).for(:url_variables) }
it { is_expected.not_to allow_value({ 'bar' => nil }).for(:url_variables) }
it { is_expected.not_to allow_value({ 'foo' => '' }).for(:url_variables) }
it { is_expected.not_to allow_value({ 'foo' => ('a' * 101) }).for(:url_variables) }
it { is_expected.not_to allow_value({ 'has spaces' => 'foo' }).for(:url_variables) }
it { is_expected.not_to allow_value({ '' => 'foo' }).for(:url_variables) }
it { is_expected.not_to allow_value({ '1foo' => 'foo' }).for(:url_variables) }
it { is_expected.not_to allow_value((1..21).to_h { ["k#{_1}", 'value'] }).for(:url_variables) }
end
describe 'url' do
it { is_expected.to allow_value('http://example.com').for(:url) }
it { is_expected.to allow_value('https://example.com').for(:url) }
it { is_expected.to allow_value(' https://example.com ').for(:url) }
it { is_expected.to allow_value('http://test.com/api').for(:url) }
it { is_expected.to allow_value('http://test.com/api?key=abc').for(:url) }
it { is_expected.to allow_value('http://test.com/api?key=abc&type=def').for(:url) }
it { is_expected.not_to allow_value('example.com').for(:url) }
it { is_expected.not_to allow_value('ftp://example.com').for(:url) }
it { is_expected.not_to allow_value('herp-and-derp').for(:url) }
context 'when url is local' do
let(:url) { 'http://localhost:9000' }
it { is_expected.not_to allow_value(url).for(:url) }
it 'is valid if application settings allow local requests from web hooks' do
settings = ApplicationSetting.new(allow_local_requests_from_web_hooks_and_services: true)
allow(ApplicationSetting).to receive(:current).and_return(settings)
is_expected.to allow_value(url).for(:url)
end
end
it 'strips :url before saving it' do
hook.url = ' https://example.com '
hook.save!
expect(hook.url).to eq('https://example.com')
end
context 'when there are URL variables' do
subject { hook }
before do
hook.url_variables = { 'one' => 'a', 'two' => 'b' }
end
it { is_expected.to allow_value('http://example.com').for(:url) }
it { is_expected.to allow_value('http://example.com/{one}/{two}').for(:url) }
it { is_expected.to allow_value('http://example.com/{one}').for(:url) }
it { is_expected.to allow_value('http://example.com/{two}').for(:url) }
it { is_expected.to allow_value('http://user:s3cret@example.com/{two}').for(:url) }
it { is_expected.to allow_value('http://{one}:{two}@example.com').for(:url) }
it { is_expected.not_to allow_value('http://example.com/{one}/{two}/{three}').for(:url) }
it { is_expected.not_to allow_value('http://example.com/{foo}').for(:url) }
it { is_expected.not_to allow_value('http:{user}:{pwd}//example.com/{foo}').for(:url) }
it 'mentions all missing variable names' do
hook.url = 'http://example.com/{one}/{foo}/{two}/{three}'
expect(hook).to be_invalid
expect(hook.errors[:url].to_sentence).to eq "Invalid URL template. Missing keys: [\"foo\", \"three\"]"
end
end
end
describe 'token' do
it { is_expected.to allow_value("foobar").for(:token) }
it { is_expected.not_to allow_values("foo\nbar", "foo\r\nbar").for(:token) }
end
describe 'push_events_branch_filter' do
it { is_expected.to allow_values("good_branch_name", "another/good-branch_name").for(:push_events_branch_filter) }
it { is_expected.to allow_values("").for(:push_events_branch_filter) }
it { is_expected.not_to allow_values("bad branch name", "bad~branchname").for(:push_events_branch_filter) }
it 'gets rid of whitespace' do
hook.push_events_branch_filter = ' branch '
hook.save!
expect(hook.push_events_branch_filter).to eq('branch')
end
it 'stores whitespace only as empty' do
hook.push_events_branch_filter = ' '
hook.save!
expect(hook.push_events_branch_filter).to eq('')
end
end
end
describe 'encrypted attributes' do
subject { described_class.encrypted_attributes.keys }
it { is_expected.to contain_exactly(:token, :url, :url_variables) }
end
describe 'execute' do
let(:data) { { key: 'value' } }
let(:hook_name) { 'project hook' }
it '#execute' do
expect_next(WebHookService).to receive(:execute)
hook.execute(data, hook_name)
end
it 'passes force: false to the web hook service by default' do
expect(WebHookService)
.to receive(:new).with(hook, data, hook_name, force: false).and_return(double(execute: :done))
expect(hook.execute(data, hook_name)).to eq :done
end
it 'passes force: true to the web hook service if required' do
expect(WebHookService)
.to receive(:new).with(hook, data, hook_name, force: true).and_return(double(execute: :forced))
expect(hook.execute(data, hook_name, force: true)).to eq :forced
end
it '#async_execute' do
expect_next(WebHookService).to receive(:async_execute)
hook.async_execute(data, hook_name)
end
it 'does not async execute non-executable hooks' do
hook.update!(disabled_until: 1.day.from_now)
expect(WebHookService).not_to receive(:new)
hook.async_execute(data, hook_name)
end
end
describe '#destroy' do
it 'does not cascade to web_hook_logs' do
web_hook = create(:project_hook)
create_list(:web_hook_log, 3, web_hook: web_hook)
expect { web_hook.destroy! }.not_to change(web_hook.web_hook_logs, :count)
end
end
describe '.executable/.disabled' do
let!(:not_executable) do
[
[0, Time.current],
[0, 1.minute.from_now],
[1, 1.minute.from_now],
[3, 1.minute.from_now],
[4, nil],
[4, 1.day.ago],
[4, 1.minute.from_now]
].map do |(recent_failures, disabled_until)|
create(:project_hook, project: project, recent_failures: recent_failures, disabled_until: disabled_until)
end
end
let!(:executables) do
[
[0, nil],
[0, 1.day.ago],
[1, nil],
[1, 1.day.ago],
[3, nil],
[3, 1.day.ago]
].map do |(recent_failures, disabled_until)|
create(:project_hook, project: project, recent_failures: recent_failures, disabled_until: disabled_until)
end
end
it 'finds the correct set of project hooks' do
expect(described_class.where(project_id: project.id).executable).to match_array executables
expect(described_class.where(project_id: project.id).disabled).to match_array not_executable
end
context 'when the feature flag is not enabled' do
before do
stub_feature_flags(web_hooks_disable_failed: false)
end
specify 'enabled is the same as all' do
expect(described_class.where(project_id: project.id).executable).to match_array(executables + not_executable)
end
end
end
describe '#executable?' do
let(:web_hook) { create(:project_hook, project: project) }
where(:recent_failures, :not_until, :executable) do
[
[0, :not_set, true],
[0, :past, true],
[0, :future, false],
[0, :now, false],
[1, :not_set, true],
[1, :past, true],
[1, :future, false],
[3, :not_set, true],
[3, :past, true],
[3, :future, false],
[4, :not_set, false],
[4, :past, false],
[4, :future, false]
]
end
with_them do
# Phasing means we cannot put these values in the where block,
# which is not subject to the frozen time context.
let(:disabled_until) do
case not_until
when :not_set
nil
when :past
1.minute.ago
when :future
1.minute.from_now
when :now
Time.current
end
end
before do
web_hook.update!(recent_failures: recent_failures, disabled_until: disabled_until)
end
it 'has the correct state' do
expect(web_hook.executable?).to eq(executable)
end
context 'when the feature flag is enabled for a project' do
before do
stub_feature_flags(web_hooks_disable_failed: project)
end
it 'has the expected value' do
expect(web_hook.executable?).to eq(executable)
end
end
context 'when the feature flag is not enabled' do
before do
stub_feature_flags(web_hooks_disable_failed: false)
end
it 'is executable' do
expect(web_hook).to be_executable
end
end
end
end
describe '#next_backoff' do
context 'when there was no last backoff' do
before do
hook.backoff_count = 0
end
it 'is 10 minutes' do
expect(hook.next_backoff).to eq(described_class::INITIAL_BACKOFF)
end
end
context 'when we have backed off once' do
before do
hook.backoff_count = 1
end
it 'is twice the initial value' do
expect(hook.next_backoff).to eq(20.minutes)
end
end
context 'when we have backed off 3 times' do
before do
hook.backoff_count = 3
end
it 'grows exponentially' do
expect(hook.next_backoff).to eq(80.minutes)
end
end
context 'when the previous backoff was large' do
before do
hook.backoff_count = 8 # last value before MAX_BACKOFF
end
it 'does not exceed the max backoff value' do
expect(hook.next_backoff).to eq(described_class::MAX_BACKOFF)
end
end
end
shared_examples 'is tolerant of invalid records' do
specify do
hook.url = nil
expect(hook).to be_invalid
run_expectation
end
end
describe '#enable!' do
it 'makes a hook executable if it was marked as failed' do
hook.recent_failures = 1000
expect { hook.enable! }.to change(hook, :executable?).from(false).to(true)
end
it 'makes a hook executable if it is currently backed off' do
hook.disabled_until = 1.hour.from_now
expect { hook.enable! }.to change(hook, :executable?).from(false).to(true)
end
it 'does not update hooks unless necessary' do
sql_count = ActiveRecord::QueryRecorder.new { hook.enable! }.count
expect(sql_count).to eq(0)
end
include_examples 'is tolerant of invalid records' do
def run_expectation
hook.recent_failures = 1000
expect { hook.enable! }.to change(hook, :executable?).from(false).to(true)
end
end
end
describe 'backoff!' do
it 'sets disabled_until to the next backoff' do
expect { hook.backoff! }.to change(hook, :disabled_until).to(hook.next_backoff.from_now)
end
it 'increments the backoff count' do
expect { hook.backoff! }.to change(hook, :backoff_count).by(1)
end
context 'when the hook is permanently disabled' do
before do
allow(hook).to receive(:permanently_disabled?).and_return(true)
end
it 'does not set disabled_until' do
expect { hook.backoff! }.not_to change(hook, :disabled_until)
end
it 'does not increment the backoff count' do
expect { hook.backoff! }.not_to change(hook, :backoff_count)
end
end
context 'when we have backed off MAX_FAILURES times' do
before do
stub_const("#{described_class}::MAX_FAILURES", 5)
5.times { hook.backoff! }
end
it 'does not let the backoff count exceed the maximum failure count' do
expect { hook.backoff! }.not_to change(hook, :backoff_count)
end
it 'does not change disabled_until', :skip_freeze_time do
travel_to(hook.disabled_until - 1.minute) do
expect { hook.backoff! }.not_to change(hook, :disabled_until)
end
end
it 'changes disabled_until when it has elapsed', :skip_freeze_time do
travel_to(hook.disabled_until + 1.minute) do
expect { hook.backoff! }.to change { hook.disabled_until }
expect(hook.backoff_count).to eq(described_class::MAX_FAILURES)
end
end
end
include_examples 'is tolerant of invalid records' do
def run_expectation
expect { hook.backoff! }.to change(hook, :backoff_count).by(1)
end
end
end
describe 'failed!' do
it 'increments the failure count' do
expect { hook.failed! }.to change(hook, :recent_failures).by(1)
end
it 'does not update the hook if the the failure count exceeds the maximum value' do
hook.recent_failures = described_class::MAX_FAILURES
sql_count = ActiveRecord::QueryRecorder.new { hook.failed! }.count
expect(sql_count).to eq(0)
end
include_examples 'is tolerant of invalid records' do
def run_expectation
expect { hook.failed! }.to change(hook, :recent_failures).by(1)
end
end
end
describe '#disable!' do
it 'disables a hook' do
expect { hook.disable! }.to change(hook, :executable?).from(true).to(false)
end
include_examples 'is tolerant of invalid records' do
def run_expectation
expect { hook.disable! }.to change(hook, :executable?).from(true).to(false)
end
end
end
describe '#temporarily_disabled?' do
it 'is false when not temporarily disabled' do
expect(hook).not_to be_temporarily_disabled
end
context 'when hook has been told to back off' do
before do
hook.backoff!
end
it 'is true' do
expect(hook).to be_temporarily_disabled
end
it 'is false when `web_hooks_disable_failed` flag is disabled' do
stub_feature_flags(web_hooks_disable_failed: false)
expect(hook).not_to be_temporarily_disabled
end
it 'can ignore the feature flag' do
stub_feature_flags(web_hooks_disable_failed: false)
expect(hook).to be_temporarily_disabled(ignore_flag: true)
end
end
end
describe '#permanently_disabled?' do
it 'is false when not disabled' do
expect(hook).not_to be_permanently_disabled
end
context 'when hook has been disabled' do
before do
hook.disable!
end
it 'is true' do
expect(hook).to be_permanently_disabled
end
it 'is false when `web_hooks_disable_failed` flag is disabled' do
stub_feature_flags(web_hooks_disable_failed: false)
expect(hook).not_to be_permanently_disabled
end
it 'can ignore the feature flag' do
stub_feature_flags(web_hooks_disable_failed: false)
expect(hook).to be_permanently_disabled(ignore_flag: true)
end
end
end
describe '#rate_limited?' do
it 'is false when hook has not been rate limited' do
expect_next_instance_of(Gitlab::WebHooks::RateLimiter) do |rate_limiter|
expect(rate_limiter).to receive(:rate_limited?).and_return(false)
end
expect(hook).not_to be_rate_limited
end
it 'is true when hook has been rate limited' do
expect_next_instance_of(Gitlab::WebHooks::RateLimiter) do |rate_limiter|
expect(rate_limiter).to receive(:rate_limited?).and_return(true)
end
expect(hook).to be_rate_limited
end
end
describe '#rate_limit' do
it 'returns the hook rate limit' do
expect_next_instance_of(Gitlab::WebHooks::RateLimiter) do |rate_limiter|
expect(rate_limiter).to receive(:limit).and_return(10)
end
expect(hook.rate_limit).to eq(10)
end
end
describe '#alert_status' do
subject(:status) { hook.alert_status }
it { is_expected.to eq :executable }
context 'when hook has been disabled' do
before do
hook.disable!
end
it { is_expected.to eq :disabled }
end
context 'when hook has been backed off' do
before do
hook.disabled_until = 1.hour.from_now
end
it { is_expected.to eq :temporarily_disabled }
end
end
describe '#to_json' do
it 'does not error' do
expect { hook.to_json }.not_to raise_error
end
it 'does not error, when serializing unsafe attributes' do
expect { hook.to_json(unsafe_serialization_hash: true) }.not_to raise_error
end
it 'does not contain binary attributes' do
expect(hook.to_json).not_to include('encrypted_url_variables')
end
it 'does not contain binary attributes, even when serializing unsafe attributes' do
expect(hook.to_json(unsafe_serialization_hash: true)).not_to include('encrypted_url_variables')
end
end
describe '#interpolated_url' do
subject(:hook) { build(:project_hook, project: project) }
context 'when the hook URL does not contain variables' do
before do
hook.url = 'http://example.com'
end
it { is_expected.to have_attributes(interpolated_url: hook.url) }
end
it 'is not vulnerable to malicious input' do
hook.url = 'something%{%<foo>2147483628G}'
hook.url_variables = { 'foo' => '1234567890.12345678' }
expect(hook).to have_attributes(interpolated_url: hook.url)
end
context 'when the hook URL contains variables' do
before do
hook.url = 'http://example.com/{path}/resource?token={token}'
hook.url_variables = { 'path' => 'abc', 'token' => 'xyz' }
end
it { is_expected.to have_attributes(interpolated_url: 'http://example.com/abc/resource?token=xyz') }
context 'when a variable is missing' do
before do
hook.url_variables = { 'path' => 'present' }
end
it 'raises an error' do
# We expect validations to prevent this entirely - this is not user-error
expect { hook.interpolated_url }
.to raise_error(described_class::InterpolationError, include('Missing key token'))
end
end
context 'when the URL appears to include percent formatting' do
before do
hook.url = 'http://example.com/%{path}/resource?token=%{token}'
end
it 'succeeds, interpolates correctly' do
expect(hook.interpolated_url).to eq 'http://example.com/%abc/resource?token=%xyz'
end
end
end
end
describe '#update_last_failure' do
it 'is a method of this class' do
expect { described_class.new.update_last_failure }.not_to raise_error
end
end
end