RE: [xri] Patterns

Title: RE: [xri] Patterns

 

I'm attracted to solution that allow for
maximum flexibility, but I worry about interop and complexity of
implementations. The proposal, as it is, makes the interpretation of the
regexes *mandatory* on the part of the resolvers. The pattern regex would NOT
be a hint, it would be a mandate. In other words, XRDs do not need to include
the pattern, but if they did, it would have to be honored. I would like to have
a spec that would allow resolvers to ignore the pattern matching, but thats
against the intent of the pattern element in the first place. 

 

[Wil] I’m with you there, Gabe. With regexp, the overhead
may actually be significant enough since we are match a candidate against every
pattern found, which requires each pattern to be parsed and compiled by the
regexp engine. And for a proxy resolver, if the pattern *has* to be honored, it
is easy to fall prey to DOS attacks.