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example: update echo so it can use camlzip, and serves files

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Simon Cruanes 2020-03-25 22:03:59 -04:00
parent 9d6f4d25cf
commit 65f8f957bd
1 changed files with 24 additions and 3 deletions
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27
src/examples/echo.ml
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@ -15,6 +15,26 @@ let () =
(* say hello *) (* say hello *)
S.add_path_handler ~meth:`GET server S.add_path_handler ~meth:`GET server
"/hello/%s@/" (fun name _req -> S.Response.make_string (Ok ("hello " ^name ^"!\n"))); "/hello/%s@/" (fun name _req -> S.Response.make_string (Ok ("hello " ^name ^"!\n")));
S.add_path_handler ~meth:`GET server
"/zcat/%s" (fun path _req ->
let path = match Tiny_httpd_util.percent_decode path with
| Some s -> s
| None -> S.Response.fail_raise ~code:404 "invalid path %S" path
in
let ic = open_in path in
let str = S.Byte_stream.of_chan ic in
let mime_type =
try
let p = Unix.open_process_in (Printf.sprintf "file -i -b %S" path) in
try
let s = ["Content-Type", String.trim (input_line p)] in
ignore @@ Unix.close_process_in p;
s
with _ -> ignore @@ Unix.close_process_in p; []
with _ -> []
in
S.Response.make_stream ~headers:mime_type (Ok str)
);
(* echo request *) (* echo request *)
S.add_path_handler server S.add_path_handler server
"/echo" (fun req -> "/echo" (fun req ->
@ -24,12 +44,13 @@ let () =
in in
S.Response.make_string S.Response.make_string
(Ok (Format.asprintf "echo:@ %a@ (query: %s)@." S.Request.pp req q))); (Ok (Format.asprintf "echo:@ %a@ (query: %s)@." S.Request.pp req q)));
S.add_path_handler ~meth:`PUT server S.add_path_handler_stream ~meth:`PUT server
"/upload/%s" (fun path req -> "/upload/%s" (fun path req ->
S._debug (fun k->k "start upload %S\n%!" path); S._debug (fun k->k "start upload %S, headers:\n%s\n\n%!" path
(Format.asprintf "%a" S.Headers.pp (S.Request.headers req)));
try try
let oc = open_out @@ "/tmp/" ^ path in let oc = open_out @@ "/tmp/" ^ path in
output_string oc req.S.Request.body; S.Byte_stream.to_chan oc req.S.Request.body;
flush oc; flush oc;
S.Response.make_string (Ok "uploaded file") S.Response.make_string (Ok "uploaded file")
with e -> with e ->