40 lines
1.5 KiB
OCaml
40 lines
1.5 KiB
OCaml
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open Lwt
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open Ex_common
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let http_client ?ca ?fp hostname port =
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let port = int_of_string port in
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auth ?ca ?fp () >>= fun authenticator ->
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let config = get_ok (Tls.Config.client ~authenticator ()) in
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Tls_lwt.Unix.connect config (hostname, port) >>= fun t ->
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Tls_lwt.Unix.write t "foo\n" >>= fun () ->
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let cs = Bytes.create 4 in
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Tls_lwt.Unix.read t cs >>= fun _len ->
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let cached_session = match Tls_lwt.Unix.epoch t with
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| Ok e -> e
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| Error () -> invalid_arg "error retrieving epoch"
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in
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Tls_lwt.Unix.close t >>= fun () ->
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Printf.printf "closed session\n" ;
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let config = get_ok (Tls.Config.client ~authenticator ~cached_session ()) in
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Tls_lwt.connect_ext config (hostname, port) >>= fun (ic, oc) ->
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let req = String.concat "\r\n" [
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"GET / HTTP/1.1" ; "Host: " ^ hostname ; "Connection: close" ; "" ; ""
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] in
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Lwt_io.(write oc req >>= fun () -> read ic >>= print >>= fun () -> printf "++ done.\n%!")
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let () =
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try
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match Sys.argv with
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| [| _ ; host ; port ; "FP" ; fp |] -> Lwt_main.run (http_client host port ~fp)
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| [| _ ; host ; port ; trust |] -> Lwt_main.run (http_client host port ~ca:trust)
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| [| _ ; host ; port |] -> Lwt_main.run (http_client host port)
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| [| _ ; host |] -> Lwt_main.run (http_client host "443")
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| args -> Printf.eprintf "%s <host> <port>\n%!" args.(0)
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with
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| Tls_lwt.Tls_alert alert as exn ->
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print_alert "remote end" alert ; raise exn
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| Tls_lwt.Tls_failure fail as exn ->
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print_fail "our end" fail ; raise exn
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