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Convert signature verification specs to request specs (#28443)

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Claire 2023-12-22 19:56:22 +01:00 • committed by GitHub
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spec/controllers/concerns/signature_verification_spec.rb
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# frozen_string_literal: true
require 'rails_helper'
describe SignatureVerification do
let(:wrapped_actor_class) do
Class.new do
attr_reader :wrapped_account
def initialize(wrapped_account)
@wrapped_account = wrapped_account
end
delegate :uri, :keypair, to: :wrapped_account
end
end
controller(ApplicationController) do
include SignatureVerification
before_action :require_actor_signature!, only: [:signature_required]
def success
head 200
end
def alternative_success
head 200
end
def signature_required
head 200
end
end
before do
routes.draw do
match :via => [:get, :post], 'success' => 'anonymous#success'
match :via => [:get, :post], 'signature_required' => 'anonymous#signature_required'
end
end
context 'without signature header' do
before do
get :success
end
describe '#signed_request?' do
it 'returns false' do
expect(controller.signed_request?).to be false
end
end
describe '#signed_request_account' do
it 'returns nil' do
expect(controller.signed_request_account).to be_nil
end
end
end
context 'with signature header' do
let!(:author) { Fabricate(:account, domain: 'example.com', uri: 'https://example.com/actor') }
context 'without body' do
before do
get :success
fake_request = Request.new(:get, request.url)
fake_request.on_behalf_of(author)
request.headers.merge!(fake_request.headers)
end
describe '#signed_request?' do
it 'returns true' do
expect(controller.signed_request?).to be true
end
end
describe '#signed_request_account' do
it 'returns an account' do
expect(controller.signed_request_account).to eq author
end
it 'returns nil when path does not match' do
request.path = '/alternative-path'
expect(controller.signed_request_account).to be_nil
end
it 'returns nil when method does not match' do
post :success
expect(controller.signed_request_account).to be_nil
end
end
end
context 'with a valid actor that is not an Account' do
let(:actor) { wrapped_actor_class.new(author) }
before do
get :success
fake_request = Request.new(:get, request.url)
fake_request.on_behalf_of(author)
request.headers.merge!(fake_request.headers)
allow(ActivityPub::TagManager.instance).to receive(:uri_to_actor).with(anything) do
actor
end
end
describe '#signed_request?' do
it 'returns true' do
expect(controller.signed_request?).to be true
end
end
describe '#signed_request_account' do
it 'returns nil' do
expect(controller.signed_request_account).to be_nil
end
end
describe '#signed_request_actor' do
it 'returns the expected actor' do
expect(controller.signed_request_actor).to eq actor
end
end
end
context 'with request with unparsable Date header' do
before do
get :success
fake_request = Request.new(:get, request.url)
fake_request.add_headers({ 'Date' => 'wrong date' })
fake_request.on_behalf_of(author)
request.headers.merge!(fake_request.headers)
end
describe '#signed_request?' do
it 'returns true' do
expect(controller.signed_request?).to be true
end
end
describe '#signed_request_account' do
it 'returns nil' do
expect(controller.signed_request_account).to be_nil
end
end
describe '#signature_verification_failure_reason' do
it 'contains an error description' do
controller.signed_request_account
expect(controller.signature_verification_failure_reason[:error]).to eq 'Invalid Date header: not RFC 2616 compliant date: "wrong date"'
end
end
end
context 'with request older than a day' do
before do
get :success
fake_request = Request.new(:get, request.url)
fake_request.add_headers({ 'Date' => 2.days.ago.utc.httpdate })
fake_request.on_behalf_of(author)
request.headers.merge!(fake_request.headers)
end
describe '#signed_request?' do
it 'returns true' do
expect(controller.signed_request?).to be true
end
end
describe '#signed_request_account' do
it 'returns nil' do
expect(controller.signed_request_account).to be_nil
end
end
describe '#signature_verification_failure_reason' do
it 'contains an error description' do
controller.signed_request_account
expect(controller.signature_verification_failure_reason[:error]).to eq 'Signed request date outside acceptable time window'
end
end
end
context 'with inaccessible key' do
before do
get :success
author = Fabricate(:account, domain: 'localhost:5000', uri: 'http://localhost:5000/actor')
fake_request = Request.new(:get, request.url)
fake_request.on_behalf_of(author)
author.destroy
request.headers.merge!(fake_request.headers)
stub_request(:get, 'http://localhost:5000/actor#main-key').to_raise(Mastodon::HostValidationError)
end
describe '#signed_request?' do
it 'returns true' do
expect(controller.signed_request?).to be true
end
end
describe '#signed_request_account' do
it 'returns nil' do
expect(controller.signed_request_account).to be_nil
end
end
end
context 'with body' do
before do
allow(controller).to receive(:actor_refresh_key!).and_return(author)
post :success, body: 'Hello world'
fake_request = Request.new(:post, request.url, body: 'Hello world')
fake_request.on_behalf_of(author)
request.headers.merge!(fake_request.headers)
end
describe '#signed_request?' do
it 'returns true' do
expect(controller.signed_request?).to be true
end
end
describe '#signed_request_account' do
it 'returns an account' do
expect(controller.signed_request_account).to eq author
end
end
context 'when path does not match' do
before do
request.path = '/alternative-path'
end
describe '#signed_request_account' do
it 'returns nil' do
expect(controller.signed_request_account).to be_nil
end
end
describe '#signature_verification_failure_reason' do
it 'contains an error description' do
controller.signed_request_account
expect(controller.signature_verification_failure_reason[:error]).to include('using rsa-sha256 (RSASSA-PKCS1-v1_5 with SHA-256)')
expect(controller.signature_verification_failure_reason[:signed_string]).to include("(request-target): post /alternative-path\n")
end
end
end
context 'when method does not match' do
before do
get :success
end
describe '#signed_request_account' do
it 'returns nil' do
expect(controller.signed_request_account).to be_nil
end
end
end
context 'when body has been tampered' do
before do
post :success, body: 'doo doo doo'
end
describe '#signed_request_account' do
it 'returns nil when body has been tampered' do
expect(controller.signed_request_account).to be_nil
end
end
end
end
end
context 'when a signature is required' do
before do
get :signature_required
end
context 'without signature header' do
it 'returns HTTP 401' do
expect(response).to have_http_status(401)
end
it 'returns an error' do
expect(Oj.load(response.body)['error']).to eq 'Request not signed'
end
end
end
end