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Re: VC meeting to discuss Permissions spec

From: Jeffrey Yasskin <jyasskin@google.com>
Date: Wed, 1 Jun 2016 16:08:29 -0700
Message-ID: <CANh-dXn3M9ZCn=EbdxNXj040-SVvXyapQj2DQabcgXit4h2VOg@mail.gmail.com>
To: "public-webappsec@w3.org" <public-webappsec@w3.org>
Cc: Jan-Ivar Bruaroey <jib@mozilla.com>, Ilya Grigorik <igrigorik@google.com>, Raymes Khoury <raymes@google.com>, Harald Alvestrand <hta@google.com>, Mounir Lamouri <mlamouri@google.com>, Anne van Kesteren <annevk@annevk.nl>, Martin Thomson <mt@mozilla.com>, Marcos Caceres <marcos@marcosc.com>, Wendy Seltzer <wseltzer@w3.org>, "Cindy (Xiaoqian) Wu" <xiaoqian@w3.org>
It looks like the most people can attend on PDT June 7 11PM–12AM,
Berlin time June 8 8AM–9AM, Sydney time June 8 4PM–5PM.
Wendy/Xiaoqian, can you set up the WebEx meeting?


On Thu, May 26, 2016 at 6:11 PM, Jeffrey Yasskin <jyasskin@google.com> wrote:
> Hi all,
> I've been updating the Permissions spec to improve its support for
> complex permissions like Bluetooth, for temporary grants as seen in
> Safari and Firefox, and for UA innovation.
> https://docs.google.com/document/d/1_YTpXijrkKNlmSlpA0fEwc5WMmZvRvdTRwF81g_gndk/edit
> surveys the existing practice with permissions and describes some
> tricky aspects of various future plans. I've proposed 3 fairly
> different models, and I think it's surpassed everyone's ability to
> investigate them enough to develop a preference.
> So I'd like to schedule a meeting with interested folks some time in
> the next 2 weeks so that we can all focus enough to pick one of the
> models.
> What times work for people? Please fill out
> http://doodle.com/poll/e2r74364qzkmxga9 to express a preference. We
> can meet via https://talkgadget.google.com/hangouts/_/google.com/permissionsspec.
> The models I've written up are:
> * https://github.com/w3c/permissions/pull/95: Each feature defines a
> storage type, and permission stores store it. The UA doesn't need any
> permission stores, but if it has them, it needs one per global object,
> probably plus one per origin, and can save grants to multiple stores
> and initialize new stores pretty freely. This version also needs
> https://github.com/w3c/permissions/pull/91 to let other specs modify
> their storage types appropriately.
> * https://github.com/w3c/permissions/pull/96: Defines a permission
> store for each global object, but leaves it up to the UA how those are
> created. Stores hold a collection of entries for each feature, rather
> than a unified "storage" type, which helps with granting access to
> discrete devices. This spec spends some words requiring that
> permission changes only happen on event loop turn boundaries, but
> that's not very useful to developers since every algorithm using
> permissions runs 'in parallel'.
> * https://github.com/w3c/permissions/pull/97: Feature specs use
> "descriptor's permission state" and "descriptor's extra permission
> data" to read the UA's notion of the user's intent, but there's no
> model of the UA's storage. Individual permissions can add constraints:
> for example, "camera" and "microphone" require that iframes without
> the allowusermedia attribute return "denied". This option treats
> permission the most like UI, which we traditionally don't specify.
> #97 was written last, so it also includes some other improvements,
> like calling things like "camera" features instead of permissions, and
> defining algorithms for other specs to use to show permission prompts.
> I'll port those to whichever version we pick if you like them.
> Please let me know when you're free to talk, and give the options some
> thought ahead of the meeting, and hopefully we can settle on something
> lots of specs can use.
> Thanks,
> Jeffrey
Received on Wednesday, 1 June 2016 23:09:17 UTC

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