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Date: Sun, 25 Jan 2009 23:06:51 +0100
Message-ID: <7f3ed2c30901251406i75307f1eh5dd6259d38ed63ce@mail.gmail.com>
To: Giovanni Giacobbi <giovanni@giacobbi.net>
Cc: internals@lists.php.net
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Subject: Re: [PHP-DEV] Bug in HTTP stream context causes problems in 
	SoapClient/get_sdl()
From: hannes.magnusson@gmail.com (Hannes Magnusson)

On Sun, Jan 25, 2009 at 22:43, Giovanni Giacobbi <giovanni@giacobbi.net> wrote:
>
> The problem turned out to be an invalid interpretation of the HTTP/1.1 protocol with "Transfer-Encoding: chunked" by the HTTP stream context, which caused get_sdl() to parse a WSDL including the chunk tags (hex numbers).
>
> Chunked encoding is used by Apache 2.0 when "Content-Length" is unavailable, the data content being sent is large enough, and the protocol is HTTP/1.1.
>

PHP streams do not support chunked encoding, and I assume SOAP doesn't
either (although it does reinvent bunch of things, I don't think
chunked encoding was added). I thought the docs were quite explicit on
the subject.. if not, please open a doc bug.



> <?php
> $opts = array('http' => array('method' => "GET", 'header' => "Accept-language: en\r\nConnection: close\r\n"));
> $context = stream_context_create($opts);
> stream_context_set_option($context, "http", "protocol_version", 1.1);
> fpassthru(fopen('http://localhost/ws/catalog?wsdl', 'r', false, $context));
> ?>

Changing the protocol version is "at your own risk".
If you want a full real HTTP support, you have to use the pecl/http extension.


> 2) Without the "Connection: close" header the stream blocks until http timeout. It should instead detect the chunk with 0 bytes and return from the fpassthru().
>

That however is a valid bug, which I have actually seen couple of
times myself.. never debugged it and just assumed I did something
weird :]


-Hannes