glitch-soc/spec/support/fasp/provider_request_helper.rb

73 lines
2.2 KiB
Ruby

# frozen_string_literal: true
module ProviderRequestHelper
private
def stub_provider_request(provider, path: '/', method: :get, response_status: 200, response_body: '')
response_body = encode_body(response_body)
response_headers = {
'content-type' => 'application/json',
}.merge(response_authentication_headers(provider, response_status, response_body))
stub_request(method, provider.url(path))
.to_return do |_request|
{
status: response_status,
body: response_body,
headers: response_headers,
}
end
end
def request_authentication_headers(provider, url: root_url, method: :get, body: '')
body = encode_body(body)
headers = {}
headers['content-digest'] = content_digest(body)
request = Linzer.new_request(method, url, {}, headers)
key = private_key_for(provider)
signature = sign(request, key, %w(@method @target-uri content-digest))
headers.merge(signature.to_h)
end
def response_authentication_headers(provider, status, body)
headers = {}
headers['content-digest'] = content_digest(body)
response = Linzer.new_response(body, status, headers)
key = private_key_for(provider)
signature = sign(response, key, %w(@status content-digest))
headers.merge(signature.to_h)
end
def private_key_for(provider)
@cached_provider_keys ||= {}
@cached_provider_keys[provider] ||=
begin
key = OpenSSL::PKey.generate_key('ed25519')
provider.update!(provider_public_key_pem: key.public_to_pem)
key
end
{
id: provider.id.to_s,
private_key: @cached_provider_keys[provider].private_to_pem,
}
end
def sign(request_or_response, key, components)
message = Linzer::Message.new(request_or_response)
linzer_key = Linzer.new_ed25519_key(key[:private_key], key[:id])
Linzer.sign(linzer_key, message, components)
end
def encode_body(body)
return body if body.nil? || body.is_a?(String)
encoder = ActionDispatch::RequestEncoder.encoder(:json)
encoder.encode_params(body)
end
def content_digest(content)
"sha-256=:#{OpenSSL::Digest.base64digest('sha256', content)}:"
end
end