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From: Alan Schmitt <alan.schmitt@polytechnique.org>
To: OCaml Mailing List <caml-list@inria.fr>
Date: Wed, 25 Sep 2019 15:49:10 +0200
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Subject: [Caml-list] https and Ocamlnet
Reply-To: Alan Schmitt <alan.schmitt@polytechnique.org>
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Hello,

I have a small utility that downloads and parses the RSS feed from
ocaml.org to include in the OCaml Weekly News, but a recent change 
to
ocaml.org broke it: it seems to only be served through https. I 
tried to
add a TLS provider, but it's still failing with a cryptic error 
message.

Here is an extract of the code showing the problem:

#+begin_src ocaml
let () = Nettls_gnutls.init()

let site = "https://ocaml.org"
let feed_name = "/feed.xml"

let planet = Nethttp_fs.http_fs site
let feedic = planet # read [] feed_name
let feed_string = Netchannels.string_of_in_obj_channel feedic
let () = feedic # close_in()
#+end_src

I can compile it with

ocamlfind ocamlc -o test -linkpkg -package netclient,nettls-gnutls 
test.ml

but when I run it, I get this error

Fatal error: exception 
Nettls_gnutls.TLS.Error(GNUTLS_E_PUSH_ERROR)

I know nothing of TLS and searching for the error did not point me
toward any solution.

I'm using gnutls 3.6.9 and ocamlnet 4.1.6.

How can I access the site using https?

Thanks,

Alan

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