Hi Paul:

I hear you on the concern here. We're going from very distributed,
loose-form URI generation to something more structured. My original CLs for
DefaultProxyUriManager took this even too far, validating host and path
prefix, which caused quite a few breakages that were unnecessary.

In this case it sounds like the problem is that the old style didn't require
container=. In DefaultProxyUriManager I mandate this as well for auditing
purposes, doing so under the assumption that the URL is generated by the
same Manager (or already-compatible gadgets.io.getProxyUrl).
ContentRewriterUris doesn't include this in the fallback case (no container
specified).

So:

1. The intent is to get rid of HTMLContentRewriter and its entire stack
(LinkRewriter, ContentRewriterUris, et al.). They're kept around in an
effort to let their replacements bake in and get some real-world exposure.
For instance, we're using them in the Google instance of Shindig.
2. Tactically speaking it sounds like ContentRewriterUris should tack on
container=default (or similar) when no container value is specified, to
support dual-mode URI generation. In this case, lenient-mode parsing should
work fine.

Thoughts?
--j

On Fri, Mar 19, 2010 at 6:11 PM, Paul Lindner <[email protected]> wrote:

> Hi,
>
> Looks like proxy rewriting of images is failing with the new
> DefaultProxyUriManager class.
>
> Specifically rewriters are not setting the container value, which causes
> the
> request to be rejected.  The default code that uses values from
> java/config/shindig.properties and the javascript code for getProxyUrl do
> not set container values, thus proxying is all broken for these use cases.
>
> It appears that ContentRewriterUris tries to use the container specific
> value of gadgets.rewriteProxyBase, failing that it uses the injected value
> of shindig.content-rewrite.proxy-url which maps to /gadgets/proxy?url=
>
> I'm a bit concerned that there are other issues like this lurking about...
>
> Is it possible that we can come up with a common idiom that handles all of
> these situations?  Perhaps a parameterized Uri concept that could be
> applied
> here.
>

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