W3C home > Mailing lists > Public > public-tracking@w3.org > October 2012

Re: Are we trying to build a compliance system on poorly-defined core concepts?

From: Roy T. Fielding <fielding@gbiv.com>
Date: Sun, 7 Oct 2012 21:21:49 -0700
Cc: "public-tracking@w3.org Working Group" <public-tracking@w3.org>
Message-Id: <22A374A6-5CCF-46CC-A4DD-75058236B2A9@gbiv.com>
To: "SULLIVAN, BRYAN L" <bs3131@att.com>
A proxy is, by definition, an intermediary that acts on behalf of the user.
A gateway (a.k.a., reverse proxy) is an intermediary that acts on behalf
of an origin server.  So, all you have to say is "user agent or proxy"
and you cover what you intend for HTTP, though you will have to exclude
proxies that are imposed by the network if you want to retain actual
user choice.

....Roy

On Oct 5, 2012, at 7:00 AM, SULLIVAN, BRYAN L wrote:

> Ok, I'm not meaning to challenge HTTP 1.1, but if an intermediary acts as an HTTP client on behalf of the user, e.g. an anomymizing proxy or other proxy/gateway which provides value-added services to the user (e.g. Opera mini server or WAP gateway/proxy), I think it can serve similar objectives as other "agents", e.g. HTTP client functionality, Web content processing, etc. My goal here is again not to challenge the definition of user agent but to clarify that what we mean by user agent in the TPE (at least for expression of user tracking preference via a DNT header) can extend to network-based software components that act on behalf of the user. At the least, we need to ensure that there is no language in the TPE or TCS that would forbid this valid implementation approach.
> 
> Thanks,
> Bryan Sullivan
> 
> On Oct 5, 2012, at 1:19 PM, "Roy T. Fielding" <fielding@gbiv.com> wrote:
> 
> On Oct 5, 2012, at 4:12 AM, Bryan Sullivan wrote:
> 
>> To be clear, I am proposing three new issues be raised and I will propose
>> text for:
>> 1) Clarify that multiple users may use a specific device/user-agent
>> 2) Address TPE changes to refect multi-user/shared device use cases
>> 3) Update user agent definition to include proxy user agents
> 
> To be clear, the latter will not be accepted.  DNT depends on HTTP,
> and a proxy is never a user agent.  It is a proxy.  So if you need
> some requirements changed, then suggest ways in which they can be
> phrased as "user agent or proxy" rather than try to change UA to
> include proxy.
> 
> ....Roy
> 
Received on Monday, 8 October 2012 04:22:10 UTC

This archive was generated by hypermail 2.3.1 : Friday, 21 June 2013 10:11:36 UTC