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devel / comp.lang.lisp / Re: lightweight communication to the web in Common Lisp

lightweight communication to the web in Common Lisp

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Subject: lightweight communication to the web in Common Lisp
From: dr.mtarver@gmail.com (Mark Tarver)
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by: Mark Tarver - Tue, 7 Dec 2021 23:20 UTC

I'm looking for a lightweight program in Common Lisp for communicating to
the web. Should take a URL and return the contents of the site. Should accept https sites. A code sample like (get-url "mywebsite.org") would be cool.

If it can push data via ftp and passwords etc. even better.

Mark

Re: lightweight communication to the web in Common Lisp

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From: enometh@meer.net (Madhu)
Newsgroups: comp.lang.lisp
Subject: Re: lightweight communication to the web in Common Lisp
Date: Wed, 08 Dec 2021 08:57:25 +0530
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by: Madhu - Wed, 8 Dec 2021 03:27 UTC

* Mark Tarver <dc46baf0-e749-47aa-bac1-2c0a2951da1an@googlegroups.com> :
Wrote on Tue, 7 Dec 2021 15:20:35 -0800 (PST):

> I'm looking for a lightweight program in Common Lisp for communicating to
> the web. Should take a URL and return the contents of the site.
> Should accept https sites. A code sample like (get-url
> "mywebsite.org") would be cool.

This usually has to be a wrapper around the (necessary complexity)
functionality that the client has to expose

> If it can push data via ftp and passwords etc. even better.

The usual suspects are edi weitz' drakma https://github.com/edicl/drakma
and `fukamachi's https://github.com/fukamachi/dexador - but these come
with the stack of dependencies and the subsequent dependence on
quicklisp.

A lightweight (light on dependencies) alternative was Jeff Massung's
suite of tools which included a http client
https://github.com/massung/http this was for CCL at the time I used it.
This worked well for me until he switched it over to SBCL-only, though I
had a stab at keeping CCL compatibility

Re: lightweight communication to the web in Common Lisp

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From: stephane@unices.org (Stephane Tougard)
Subject: Re: lightweight communication to the web in Common Lisp
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by: Stephane Tougard - Fri, 10 Dec 2021 08:31 UTC

On 2021-12-07, Mark Tarver <dr.mtarver@gmail.com> wrote:
> I'm looking for a lightweight program in Common Lisp for communicating to
> the web. Should take a URL and return the contents of the site. Should accept https sites. A code sample like (get-url "mywebsite.org") would be cool.

CL-USER(1): (ql:quickload 'drakma)
To load "drakma":
Load 7 ASDF systems:
asdf chunga cl+ssl cl-base64 cl-ppcre flexi-streams
usocket
Install 3 Quicklisp releases:
chipz drakma puri
; Loading "drakma"
[package puri]....................................
[package chipz]...................................
[package drakma]........
(DRAKMA)
CL-USER(2): (drakma:http-request "https://www.google.com")

> If it can push data via ftp and passwords etc. even better.

I don't think it does FTP, but it surely does all those kinds of things in
HTTP.

For FTP

CL-USER(4): (ql:system-apropos "ftp")
#<SYSTEM cl-ftp / cl-ftp-20150608-http / quicklisp 2021-10-21>
#<SYSTEM fftpack5 / f2cl-20200925-git / quicklisp 2021-10-21>
#<SYSTEM fftpack5-double / f2cl-20200925-git / quicklisp 2021-10-21>
#<SYSTEM ftp / cl-ftp-20150608-http / quicklisp 2021-10-21>
CL-USER(5):

Never tested, however FTP is a simple protocol, quite sure it does all
that.

Re: lightweight communication to the web in Common Lisp

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From: enometh@meer.net (Madhu)
Newsgroups: comp.lang.lisp
Subject: Re: lightweight communication to the web in Common Lisp
Date: Fri, 10 Dec 2021 15:09:55 +0530
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by: Madhu - Fri, 10 Dec 2021 09:39 UTC

* Stephane Tougard <isfb8i-0s91.ln1@superman.unices.org> :
Wrote on Fri, 10 Dec 2021 09:31:46 +0100:

[drakma]
>> If it can push data via ftp and passwords etc. even better.
>
> I don't think it does FTP, but it surely does all those kinds of things in
> HTTP.
>
> For FTP
>
> CL-USER(4): (ql:system-apropos "ftp")
> #<SYSTEM cl-ftp / cl-ftp-20150608-http / quicklisp 2021-10-21>
> #<SYSTEM fftpack5 / f2cl-20200925-git / quicklisp 2021-10-21>
> #<SYSTEM fftpack5-double / f2cl-20200925-git / quicklisp 2021-10-21>
> #<SYSTEM ftp / cl-ftp-20150608-http / quicklisp 2021-10-21>

> Never tested, however FTP is a simple protocol, quite sure it does all
> that.

Compared to HTTP/1.0, FTP is pretty complex. It negotiates and opens a
separate connection see the PASV command.

most univ sites have stopped serving ftp. firefox dropped support for
ftp. citing maintanence is not a change for something so tested. there
is considerable capital-investment from above in killing off ftp.

Subject	Author
lightweight communication to the web in Common Lisp	Mark Tarver
Re: lightweight communication to the web in Common Lisp	Madhu
Re: lightweight communication to the web in Common Lisp	Stephane Tougard
Re: lightweight communication to the web in Common Lisp	Madhu