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Re: pure zsh implementation of wget
- X-seq: zsh-users 16399
- From: Guido van Steen <gvsteen@xxxxxxxxx>
- To: Mikael Magnusson <mikachu@xxxxxxxxx>
- Subject: Re: pure zsh implementation of wget
- Date: Thu, 22 Sep 2011 22:23:09 -0700 (PDT)
- Cc: zsh-users@xxxxxxx
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Thanks a lot! With these additions it also works for me.
How difficult would it be to make this handle https as well?
Is there any existing implementation that handles https?
--- On Fri, 23/9/11, Mikael Magnusson <mikachu@xxxxxxxxx> wrote:
> From: Mikael Magnusson <mikachu@xxxxxxxxx>
> Subject: Re: pure zsh implementation of wget
> To: "Guido van Steen" <gvsteen@xxxxxxxxx>
> Cc: zsh-users@xxxxxxx
> Date: Friday, 23 September, 2011, 4:50 AM
> On 22 September 2011 23:06, Guido van
> Steen <gvsteen@xxxxxxxxx>
> > Hi!
> > I was wondering if someone could point me to a pure
> zsh implementation of a function/script that downloads files
> like wget.
> > I have been look at this (slightly modified from http://rosettacode.org/wiki/HTTP#Zsh):
> > $cat wget.zsh
> > #!/usr/bin/env zsh
> > zmodload zsh/net/tcp
> > ztcp google.com 80
> > fd=$REPLY
> > print -l -u $fd -- 'GET / HTTP/1.1' 'Host: google.com'
> > while read -u $fd -r -e -t 1; do; :; done
> > ztcp -c $fd
> > However, when I run this script, I do not receive any
> files. Neither do I observe any other results. I tried it
> with other sites, e.g. replacing google.com by localhost,
> and so on.
> > Does someone know what am I missing?
> It works for me, but there are a couple of problems. It
> uses a timeout
> of one second, so if your connection is slow it won't do
> anything, and
> it doesn't include the dos newlines i believe you should
> have in http.
> A more severe problem is that it uses read without setting
> IFS empty
> which means it will mangle initial whitespace input. All
> these issues
> (but possibly not others) are solved here (possibly):
> zmodload zsh/net/tcp
> ztcp google.com 80
> print -l -u $fd -- 'GET / HTTP/1.1'$'\015' 'Host:
> www.google.com'$'\015' 'Connection: close'$'\015' $'\015'
> while IFS= read -u $fd -r -e; do; :; done
> ztcp -c $fd
> note that gmail will insert a newline in the print line, so
> join that
> back yourself :) Instead of the while loop you can also
> just write cat
> > BTW, would this work with https as well?
> Definitely not :).
> Mikael Magnusson
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