mte/unikernel/duniverse/ocaml-h2/examples/lwt/lwt_https_server.ml
2025-11-11 02:07:51 +01:00

120 lines
4 KiB
OCaml

let set_interval ?(times = 5) s f destroy =
let rec set_interval_loop s f n =
let timeout =
Lwt_timeout.create s (fun () ->
if n > 0
then (if f () then set_interval_loop s f (n - 1))
else destroy ())
in
Lwt_timeout.start timeout
in
set_interval_loop s f times
let connection_handler : Unix.sockaddr -> Lwt_unix.file_descr -> unit Lwt.t =
let open H2 in
let request_handler : Unix.sockaddr -> Reqd.t -> unit =
fun _client_address request_descriptor ->
let request = Reqd.request request_descriptor in
match request.meth, request.target with
| `POST, "/" ->
(* let request_body = Reqd.request_body request_descriptor in *)
let response_content_type =
match Headers.get request.headers "Content-Type" with
| Some request_content_type -> request_content_type
| None -> "application/octet-stream"
in
let response =
Response.create
~headers:
(Headers.of_list
[ "content-type", response_content_type
(* "Connection", "close"; *)
])
`OK
in
(* let response_body = Reqd.respond_with_streaming request_descriptor
response in *)
(* let rec respond () = Body.schedule_read request_body ~on_eof:(fun () ->
Body.close_writer response_body) ~on_read:(fun request_data ~off ~len
-> Body.write_bigstring response_body request_data ~off ~len; respond
()) in respond () *)
Reqd.respond_with_string request_descriptor response "ANTOINO"
| `POST, "/foo" ->
set_interval
~times:1
2
(fun () ->
let response_content_type =
match Headers.get request.headers "Content-Type" with
| Some request_content_type -> request_content_type
| None -> "application/octet-stream"
in
let response =
Response.create
~headers:
(Headers.of_list
[ "content-type", response_content_type
(* "Connection", "close"; *)
])
`OK
in
Reqd.respond_with_string request_descriptor response "ANTOINO";
true)
ignore
| `GET, _ ->
Reqd.respond_with_string
request_descriptor
(Response.create `OK)
"Welcome to ocaml-h2"
| _ ->
Reqd.respond_with_string
request_descriptor
(Response.create `Method_not_allowed)
""
in
let error_handler :
Unix.sockaddr
-> ?request:H2.Request.t
-> _
-> (Headers.t -> Body.Writer.t)
-> unit
=
fun _client_address ?request:_ _error start_response ->
let response_body = start_response Headers.empty in
(* begin match error with | `Exn exn -> Body.write_string response_body
(Printexc.to_string exn); Body.write_string response_body "\n";
| #Status.standard as error -> Body.write_string response_body
(Status.default_reason_phrase error) end; *)
Body.Writer.close response_body
in
let certfile = "./certificates/server.pem" in
let keyfile = "./certificates/server.key" in
H2_lwt_unix.Server.SSL.create_connection_handler_with_default
~certfile
~keyfile
?config:None
~request_handler
~error_handler
let () =
let open Lwt.Infix in
Sys.(set_signal sigpipe Signal_ignore);
let port = ref 8080 in
Arg.parse
[ "-p", Arg.Set_int port, " Listening port number (8080 by default)" ]
ignore
"Echoes POST requests. Runs forever.";
let listen_address = Unix.(ADDR_INET (inet_addr_loopback, !port)) in
Lwt.async (fun () ->
Lwt_io.establish_server_with_client_socket listen_address connection_handler
>>= fun _server ->
Printf.printf "Listening on port %i and echoing POST requests.\n" !port;
print_string "To send a POST request, try\n\n";
print_string " curl https://localhost:8080 -k -X POST -d foo\n\n";
flush stdout;
Lwt.return_unit);
let forever, _ = Lwt.wait () in
Lwt_main.run forever