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Re: Method Mania

Julian Reschke <julian.reschke@gmx.de> Sat, 27 July 2024 08:19 UTC

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From: Julian Reschke <julian.reschke@gmx.de>
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Subject: Re: Method Mania
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On 26.07.2024 00:27, Josh Cohen wrote:
> On the httpwg agenda at IETF 120 were a proposal for a new QUERY method
> and Braid, which has subscription functionality that overloads the GET
> method.
>
> What I am curious about is if, at this point in the evolution of the
> web, it is now safe to add new methods for new functionality. I've been
> reading up on HTTP/2/3 and it seems that nowadays, connections are
> end-to-end secure and are essentially tunneled through middle boxes,
> including HTTP/1.1 proxies. I'm still just wrapping my head around
> MASQUE, but it looks like it can handle arbitrary methods.  Similarly
> origin servers have evolved to support arbitrary methods.

It always has been "safe", when https was used.

> ...
> In the Braid internet draft[3], section 2.5 states:
>
>
>     If the request contains a Subscribe header, then it SHOULD
>     additionally leave the request open and subscribe the client to
>       future updates.  Otherwise, it should close the connection  after
>     sending the updates.
>
> That imposes semantics at the connection level which are different from
> the norm.  In HTTP/1.1, the Connection header specifies whether to keep
> the connection open. In HTTP/2/3, the Connection header is prohibited.
 > ...

That sounds really problematic; method definitions can not override
connection semantics.

Best regards, Julian

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