mte/unikernel/duniverse/httpun/async/httpun_async.ml

(*----------------------------------------------------------------------------
    Copyright (c) 2018 Inhabited Type LLC.
    Copyright (c) 2019 António Nuno Monteiro

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open Async

module Server = struct
  type 'a socket = ([`Active], [< Socket.Address.t] as 'a) Socket.t

  let create_connection_handler
    ?(config=Httpun.Config.default)
    ~request_handler
    ~error_handler =
    fun client_addr socket ->
      let create_connection =
        Httpun.Server_connection.create
          ~config
          ~error_handler:(error_handler client_addr)
      in
      Gluten_async.Server.create_upgradable_connection_handler
        ~read_buffer_size:config.read_buffer_size
        ~protocol:(module Httpun.Server_connection)
        ~create_protocol:create_connection
        ~request_handler
        client_addr
        socket

  module SSL = struct
    let create_connection_handler
      ?(config=Httpun.Config.default)
      ~request_handler
      ~error_handler =
      fun client_addr socket ->
        let create_connection =
          Httpun.Server_connection.create
            ~config
            ~error_handler:(error_handler client_addr)
        in
        Gluten_async.Server.SSL.create_upgradable_connection_handler
          ~read_buffer_size:config.read_buffer_size
          ~protocol:(module Httpun.Server_connection)
          ~create_protocol:create_connection
          ~request_handler
          client_addr
          socket

    let create_connection_handler_with_default
      ~certfile
      ~keyfile
      ?config
      ~request_handler
      ~error_handler =
      let make_ssl_server =
        Gluten_async.Server.SSL.create_default
          ~alpn_protocols:["http/1.1"]
          ~certfile
          ~keyfile
      in
      fun client_addr socket ->
        make_ssl_server client_addr socket
        >>= fun ssl_server ->
          create_connection_handler
            ?config
            ~request_handler
            ~error_handler
            client_addr
            ssl_server
  end
end

module Client = struct
  module Client_runtime = Gluten_async.Client

  type 'a socket = 'a Client_runtime.socket

  type 'a runtime = 'a Client_runtime.t

  type 'a t =
    { connection: Httpun.Client_connection.t
    ; runtime: 'a runtime
    }

  let create_connection ?(config=Httpun.Config.default) socket =
    let connection = Httpun.Client_connection.create ~config () in
    Client_runtime.create
      ~read_buffer_size:config.read_buffer_size
      ~protocol:(module Httpun.Client_connection)
      connection
      socket
    >>| fun runtime ->
      { runtime; connection }

  let request t = Httpun.Client_connection.request t.connection

  let shutdown t = Client_runtime.shutdown t.runtime

  let is_closed t = Client_runtime.is_closed t.runtime

  let upgrade t protocol = Client_runtime.upgrade t.runtime protocol

  module SSL = struct
    module Client_runtime = Gluten_async.Client.SSL
    type 'a socket = 'a Client_runtime.socket

    type 'a runtime = 'a Client_runtime.t

    type 'a t =
      { connection: Httpun.Client_connection.t
      ; runtime: 'a runtime
      }

    let create_connection ?(config=Httpun.Config.default) socket =
      let connection = Httpun.Client_connection.create ~config () in
      Client_runtime.create
        ~read_buffer_size:config.read_buffer_size
        ~protocol:(module Httpun.Client_connection)
        connection
        socket
      >>| fun runtime ->
        { runtime; connection }

    let request t = Httpun.Client_connection.request t.connection

    let shutdown t = Client_runtime.shutdown t.runtime

    let is_closed t = Client_runtime.is_closed t.runtime

    let upgrade t protocol = Client_runtime.upgrade t.runtime protocol

    let create_connection_with_default ?config socket =
      Client_runtime.create_default
        ~alpn_protocols:["http/1.1"]
        socket
      >>= fun ssl_client ->
        create_connection ?config ssl_client
  end
end