Re: library(http/http_client) with https URLs

Thanks.  For this particular project, I'll probably just hack something
together with library(process) on top of /usr/bin/curl.  In the long term,
my list of packs to write includes full bindings to libcurl.  That library
is so solid it seems like the right way to go.


-- 
Michael


On Thu, Jul 18, 2013 at 1:27 AM, Jan Wielemaker <[email protected]> wrote:

> On 07/18/2013 07:32 AM, Michael Hendricks wrote:
> > Is it possible to use http_get/3 and http_post/4 with https URLs?  I've
> > used them successfully with http URLs, but attempts with https produce
> > results like these:
> >
> > 1 ?- use_module(library(http/http_client)).
> > true.
> > 2 ?- use_module(library(http/http_ssl_plugin)).
> > true.
> > 3 ?- http_get('https://encrypted.google.com', Reply, []).
> > false.
> > 4 ?- http_get('https://encrypted.google.com:443', Reply, []).
> > ERROR: Unknown error term: syntax(http_reply_header,end_of_file)
> >
> > I'm able to make GET requests using http_open/3 but would really like to
> > use http_client's pleasant interface.
> >
> > I thought I'd seen discussion about this on the mailing list before, but
> > can't seem to find it now.  This is SWI-Prolog version 6.3.19 on OS X
> 10.8.4
>
> I consider http_get/3 a bit of a wrong interface design.  The http_open/3
> interface is generally more versatile and easier to use (IMO).  The SSL
> plugin was never used by http_get/3.  It shouldn't be too hard to do so,
> so if you prefer that interface I'd recommend a bit of hacking and
> submitting a patch.
>
> As a long term development, I'd like to extend http_open/3 with keep-alive
> support using the `range stream' of the HTTP package as a means to deal
> with
> the content-length.  Ideally, one could then layer the http_get/3 and
> http_post/4 interfaces on top of the http_open/3 one.
>
> None of this is really hard.  Its not on my shortlist either, so if you
> want
> to see this happen ... I think you know the answer.
>
>         Cheers --- Jan
>
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