mte/unikernel/duniverse/ocaml-h2/examples/alpn/unix/alpn_server_tls.ml
2025-11-11 02:07:51 +01:00

72 lines
2.6 KiB
OCaml

open Alpn_lib
let http1_handler =
Httpun_lwt_unix.Server.TLS.create_connection_handler
?config:None
~request_handler:Http1_handler.request_handler
~error_handler:Http1_handler.error_handler
let h2_handler =
H2_lwt_unix.Server.TLS.create_connection_handler
?config:None
~request_handler:H2_handler.request_handler
~error_handler:H2_handler.error_handler
let start_http_server () =
let open Lwt.Infix in
let listen_address = Unix.(ADDR_INET (inet_addr_loopback, 8080)) in
Lwt.async (fun () ->
Lwt_io.establish_server_with_client_socket
listen_address
(Httpun_lwt_unix.Server.create_connection_handler
?config:None
~request_handler:Http1_handler.redirect_handler
~error_handler:Http1_handler.redirect_error_handler)
>>= fun _server -> Lwt.return_unit);
let forever, _ = Lwt.wait () in
forever
let start_https_server () =
let open Lwt.Infix in
let listen_address = Unix.(ADDR_INET (inet_addr_loopback, 9443)) in
let cert = "./certificates/server.pem" in
let priv_key = "./certificates/server.key" in
Lwt.async (fun () ->
Lwt_io.establish_server_with_client_socket
listen_address
(fun client_addr fd ->
Lwt.catch
(fun () ->
X509_lwt.private_of_pems ~cert ~priv_key >>= fun certificate ->
let config =
Tls.Config.server
~alpn_protocols:[ "h2"; "http/1.1" ]
(* accept h2 before http/1.1 *)
~certificates:(`Single certificate)
()
|> Result.get_ok
in
Tls_lwt.Unix.server_of_fd config fd >>= fun tls_server ->
match Tls_lwt.Unix.epoch tls_server with
| Error () ->
Lwt_io.eprintlf
"Unable to fetch session data. Did the handshake fail?"
| Ok { alpn_protocol; _ } ->
(match alpn_protocol with
| None ->
(* Unable to negotiate a protocol *)
Lwt.return_unit
| Some "http/1.1" -> http1_handler client_addr tls_server
| Some "h2" -> h2_handler client_addr tls_server
| _ ->
(* Can't really happen - would mean that TLS negotiated a
* protocol that we didn't specify. *)
assert false))
(fun exn -> Lwt_io.eprintlf "EXN: %s" (Printexc.to_string exn)))
>>= fun _server -> Lwt.return_unit);
let forever, _ = Lwt.wait () in
forever
let () =
Sys.(set_signal sigpipe Signal_ignore);
Lwt_main.run (Lwt.join [ start_http_server (); start_https_server () ])