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Re: [Bug-wget] Syntax for RESTful scripting options

From: Hrvoje Niksic
Subject: Re: [Bug-wget] Syntax for RESTful scripting options
Date: Fri, 08 Mar 2013 00:42:17 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.2 (gnu/linux)

Tim Ruehsen <address@hidden> writes:

> BTW:
> How can Wget create a POST without any data (without Content-Type and Content-
> Length) ? Curl can...

If by "without any data" you mean with empty POST data, use
`--post-data=""'.  But that will send 0 Content-Length and the usual
Content-Type.  As always, you can customize both headers using the
`--header' option, but I don't think you can remove them entirely.

Maybe the `--header' syntax could be extended so that `--header=NAME'
(note lack of trailing colon -- currently illegal) could be used to
delete the generated header from the HTTP request.

> resulting request:
> POST /xxx HTTP/1.1
> User-Agent: Wget/1.14 (linux-gnu)
> Accept: */*
> Host: localhost:8000
> Connection: Keep-Alive
> Content-Type: application/x-www-form-urlencoded
> Content-Length: 0
> OT (I just see it): Why does Wget send 'Connection: Keep-Alive' here ?
> It is not needed and causes unecessary impact on the server...

Because Wget tries to reuse the same connection for multiple requests.
For example, the server can respond with a redirection, which would
require a new request, best carried out on the same connection.  (Plus,
the code at that point doesn't have the information that it is the last
request that will be run.)

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