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|
# frozen_string_literal: true
begin
require 'async'
require 'async/http'
rescue LoadError
# async-http not found
end
if defined?(Async::HTTP)
module WebMock
module HttpLibAdapters
class AsyncHttpClientAdapter < HttpLibAdapter
adapter_for :async_http_client
OriginalAsyncHttpClient = Async::HTTP::Client unless const_defined?(:OriginalAsyncHttpClient)
class << self
def enable!
Async::HTTP.send(:remove_const, :Client)
Async::HTTP.send(:const_set, :Client, Async::HTTP::WebMockClientWrapper)
end
def disable!
Async::HTTP.send(:remove_const, :Client)
Async::HTTP.send(:const_set, :Client, OriginalAsyncHttpClient)
end
end
end
end
end
module Async
module HTTP
class WebMockClientWrapper < Client
def initialize(
endpoint,
protocol: endpoint.protocol,
scheme: endpoint.scheme,
authority: endpoint.authority,
**options
)
webmock_endpoint = WebMockEndpoint.new(scheme, authority, protocol)
@network_client = WebMockClient.new(endpoint, **options)
@webmock_client = WebMockClient.new(webmock_endpoint, **options)
@endpoint = endpoint
@scheme = scheme
@authority = authority
end
def call(request)
request.scheme ||= self.scheme
request.authority ||= self.authority
request_signature = build_request_signature(request)
WebMock::RequestRegistry.instance.requested_signatures.put(request_signature)
webmock_response = WebMock::StubRegistry.instance.response_for_request(request_signature)
net_connect_allowed = WebMock.net_connect_allowed?(request_signature.uri)
real_request = false
if webmock_response
webmock_response.raise_error_if_any
raise Async::TimeoutError, 'WebMock timeout error' if webmock_response.should_timeout
WebMockApplication.add_webmock_response(request, webmock_response)
response = @webmock_client.call(request)
elsif net_connect_allowed
response = @network_client.call(request)
real_request = true
else
raise WebMock::NetConnectNotAllowedError.new(request_signature) unless webmock_response
end
if WebMock::CallbackRegistry.any_callbacks?
webmock_response ||= build_webmock_response(response)
WebMock::CallbackRegistry.invoke_callbacks(
{
lib: :async_http_client,
real_request: real_request
},
request_signature,
webmock_response
)
end
response
end
def close
@network_client.close
@webmock_client.close
end
private
def build_request_signature(request)
body = request.read
request.body = ::Protocol::HTTP::Body::Buffered.wrap(body)
WebMock::RequestSignature.new(
request.method.downcase.to_sym,
"#{request.scheme}://#{request.authority}#{request.path}",
headers: request.headers.to_h,
body: body
)
end
def build_webmock_response(response)
body = response.read
response.body = ::Protocol::HTTP::Body::Buffered.wrap(body)
webmock_response = WebMock::Response.new
webmock_response.status = [
response.status,
::Protocol::HTTP1::Reason::DESCRIPTIONS[response.status]
]
webmock_response.headers = build_webmock_response_headers(response)
webmock_response.body = body
webmock_response
end
def build_webmock_response_headers(response)
response.headers.each.each_with_object({}) do |(k, v), o|
o[k] ||= []
o[k] << v
end
end
end
class WebMockClient < Client
end
class WebMockEndpoint
def initialize(scheme, authority, protocol)
@scheme = scheme
@authority = authority
@protocol = protocol
end
attr :scheme, :authority, :protocol
def connect
server_socket, client_socket = create_connected_sockets
Async(transient: true) do
accept_socket(server_socket)
end
client_socket
end
def inspect
"\#<#{self.class}> #{scheme}://#{authority} protocol=#{protocol}"
end
private
def socket_class
defined?(Async::IO::Socket) ? Async::IO::Socket : Socket
end
def create_connected_sockets
pair = begin
socket_class.pair(Socket::AF_UNIX, Socket::SOCK_STREAM)
rescue Errno::EAFNOSUPPORT
socket_class.pair(Socket::AF_INET, Socket::SOCK_STREAM)
end
pair.tap do |sockets|
sockets.each do |socket|
socket.instance_variable_set :@alpn_protocol, nil
socket.instance_eval do
def alpn_protocol
nil # means HTTP11 will be used for HTTPS
end
end
end
end
end
def accept_socket(socket)
server = Async::HTTP::Server.new(WebMockApplication, self)
server.accept(socket, socket.remote_address)
end
end
module WebMockApplication
WEBMOCK_REQUEST_ID_HEADER = 'x-webmock-request-id'.freeze
class << self
def call(request)
request.read
webmock_response = get_webmock_response(request)
build_response(webmock_response)
end
def add_webmock_response(request, webmock_response)
webmock_request_id = request.object_id.to_s
request.headers.add(WEBMOCK_REQUEST_ID_HEADER, webmock_request_id)
webmock_responses[webmock_request_id] = webmock_response
end
def get_webmock_response(request)
webmock_request_id = request.headers[WEBMOCK_REQUEST_ID_HEADER][0]
webmock_responses.fetch(webmock_request_id)
end
private
def webmock_responses
@webmock_responses ||= {}
end
def build_response(webmock_response)
headers = (webmock_response.headers || {}).each_with_object([]) do |(k, value), o|
Array(value).each do |v|
o.push [k, v]
end
end
::Protocol::HTTP::Response[
webmock_response.status[0],
headers,
webmock_response.body
]
end
end
end
end
end
end
|
