Re: [Sks-devel] Displaying user images on index page

[David Shaw]

On Tue, Feb 24, 2004 at 10:25:44PM -0600, Daniel Johnson wrote:
> On 24 Feb 2004 at 22:18, Yaron M. Minsky wrote:
> > I've heard some requests for the ability to display the actual
> picture
> > associated with the user attribute packet.  Is the contents of the
> user
> > attribute packet standardized enough for this to make sense?  How
> does
> > it work?  Is it always just a JPEG file?  
> 
> I haven't read the RFCs, but PGPv6.5.8ckt08 lists JPG and BMP as
> options.  GPG v1.2.3 only wants JPG.

The standard supports JPEG only.  You can give PGP something else, but
it does a silent conversion to JPEG internally before building the
attribute packet.

> > The real annoyance in implementing this feature is that there's no
> way > (at least, none I know of) to have the jpeg be part of the
> body of the > HTML file.
> 
> The HTML format SKS outputs has to be compatible with automated
> parsers, like GPG, right?  Would they ignore a normal IMG tag (or
> extra HREF)?
> <IMG SRC="something:1234/file.jpg">
> <A HREF="something:1234/pks?getpic=0xDEADBEEF">Photo</A>

I can't speak for other parsers, but GnuPG will properly handle this
if the <img src> tag is placed on a line either before the initial
"pub..." that starts the description of a key, or after the last user
ID that ends the description of a key.

The devel GnuPG uses the machine readable indexes, but there are a lot
of the older ones still in use.

David