All of these sound good, except I wonder if we should display the extension
name in the url bar when the page is overridden (see the phishing concerns).
Thanks for implementing!

-NIck

On Wed, Aug 26, 2009 at 3:49 PM, Erik Kay <[email protected]> wrote:

>
> Here are a few differences between your proposal and the actual
> implementation I'm landing shortly:
>
> * It allows overriding of chrome:// URLs, it doesn't just intercept at
> the UI access points
> * The URL will be displayed exactly as if it wasn't being overridden
> (not visible for newtab and chrome://... for the rest)
> * the key name is chrome_url_overrides
> * we only support extension-relative resources (you can't put
> http://www.google.com)
> * for the initial release, we're only allowing "newtab" to be
> overridden.  We'll see how this one goes and what the demand is for
> overriding other pages.
>
> The rest matches your proposal.
>
> Erik
>
>
> On Mon, Aug 24, 2009 at 6:30 PM, Nick Baum<[email protected]> wrote:
> > Two additional comments:
> >
> > According to Aaron, we will actually redirect "chrome://" pages to the
> > extension pages.
> > We obviously won't let extensions replace "chrome://extensions", since
> they
> > could remove the ability to uninstall the extension.
> >
> > -Nick
> > On Mon, Aug 24, 2009 at 6:02 PM, Nick Baum <[email protected]>
> wrote:
> >>
> >> Hi all,
> >> Several people have requested an API to replace Chrome's built-in UI
> pages
> >> (new tab, downloads, etc.)
> >> Please send feedback on the proposal below.
> >>
> >> -Nick
> >>
> >> UI Pages API
> >>
> >> Overview
> >> This API would allow an extension developer to replace Chrome's built-in
> >> pages (New Tab page, History, Downloads & Bookmarks). It does not
> override
> >> the "chrome-ui://" urls, but simply hooks into the various access points
> >> (Ctrl+N, Wrench>History...). This API does not exclude the possibility
> of
> >> more specific APIs to modify the built-in implementations of these pages
> >> (for example, the oft-requested New Tab page API).
> >>
> >>
> >> Use cases
> >> Many extension authors would like to provide alternate implementation of
> >> these pages. For example, some users might want to have their delicious
> >> bookmarks as their bookmarks page, or their google web history as their
> >> history page.
> >>
> >>
> >> Could this API be part of the web platform?
> >> No, these pages are completely browser-specific and don't make sense in
> >> the context of a web page.
> >>
> >>
> >> Do you expect this API to be fairly stable?
> >> Yes, the API is small and unlikely to change. Besides, if we were to
> >> deprecate any of the pages exposed, we could simply ignore those entries
> in
> >> the manifest.
> >>
> >> What UI does this API expose?
> >> The UI for this API should be small. First of all, pages served from
> >> extensions usually do not display a URL. However, in this case, showing
> the
> >> origin of a particular page would mitigate the phishing risk (see
> below). A
> >> simple solution is to display "[page]: [name of the extension]" in the
> >> address bar.
> >> Second, we must deal with the edge case of multiple extensions using
> this
> >> API at the same time.We should default to using the pages provided by
> the
> >> most recently installed extension. Assuming we keep track of first
> install
> >> date, this should work well even when an extension is uninstalled. At
> some
> >> point, we may also want to expose a setting to override this ordering,
> >> although I think we could ship without this.
> >>
> >> How could this API be abused?
> >> There is some phishing risk. An extension could implement a new tab page
> >> that looks identical to Chrome's new tab page, but links the thumbnail
> of a
> >> popular site to a phishing site instead (for example, a thumbnail to
> >> facebook.com leading to www.evilfacebook.com). Showing the name of the
> >> extension in the address bar would let a savvy user know when the page
> is
> >> not the original, but it's unclear how to protect less cautious users.
> >> Finally, we should make sure that a poorly implemented new tab page
> >> doesn't slow down the user's browsing experience. For this reason, we
> should
> >> discuss whether to allow extensions to set these pages to "http://";
> urls,
> >> even though there is a clear use case for this. Opinions appreciated on
> this
> >> question.
> >> Given that this is a UI API, there are no particular privacy concerns –
> an
> >> extension would need additional permissions to access any personal data.
> >>
> >> Are you willing and able to develop and maintain this API?
> >> N.A. (on the Chrome team)
> >>
> >> Draft API spec
> >> Manifest format:
> >>
> >> "chrome-pages": {
> >>
> >> "newtab" : "foo.html",
> >> "history" : "bar.html",
> >> "downloads" : "fu.html",
> >> "bookmarks" : "baaar.html"
> >>
> >> }
> >
> >
> > >
> >
>
> >
>

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