gitlab-org--gitlab-foss/spec/support/helpers/fake_webauthn_device.rb

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# frozen_string_literal: true
require 'webauthn/fake_client'
class FakeWebauthnDevice
attr_reader :name
def initialize(page, name, device = nil)
@page = page
@name = name
@webauthn_device = device
end
def respond_to_webauthn_registration
app_id = @page.evaluate_script('gon.webauthn.app_id')
challenge = @page.evaluate_script('gon.webauthn.options.challenge')
json_response = webauthn_device(app_id).create(challenge: challenge).to_json # rubocop:disable Rails/SaveBang
@page.execute_script <<~JS
var result = #{json_response};
result.getClientExtensionResults = () => ({});
navigator.credentials.create = function(_) {
return Promise.resolve(result);
};
JS
end
def respond_to_webauthn_authentication
app_id = @page.evaluate_script('JSON.parse(gon.webauthn.options).extensions.appid')
challenge = @page.evaluate_script('JSON.parse(gon.webauthn.options).challenge')
begin
json_response = webauthn_device(app_id).get(challenge: challenge).to_json
rescue RuntimeError
# A runtime error is raised from fake webauthn if no credentials have been registered yet.
# To be able to test non registered devices, credentials are created ad-hoc
webauthn_device(app_id).create # rubocop:disable Rails/SaveBang
json_response = webauthn_device(app_id).get(challenge: challenge).to_json
end
@page.execute_script <<~JS
var result = #{json_response};
result.getClientExtensionResults = () => ({});
navigator.credentials.get = function(_) {
return Promise.resolve(result);
};
JS
@page.click_link('Try again?', href: false)
end
def fake_webauthn_authentication
@page.execute_script <<~JS
const mockResponse = {
type: 'public-key',
id: '',
rawId: '',
response: { clientDataJSON: '', authenticatorData: '', signature: '', userHandle: '' },
getClientExtensionResults: () => {},
};
window.gl.resolveWebauthn(mockResponse);
JS
end
def add_credential(app_id, credential_id, credential_key)
credentials = { URI.parse(app_id).host => { credential_id => { credential_key: credential_key, sign_count: 0 } } }
webauthn_device(app_id).send(:authenticator).instance_variable_set(:@credentials, credentials)
end
private
def webauthn_device(app_id)
@webauthn_device ||= WebAuthn::FakeClient.new(app_id)
end
end