[wildfly-dev] IPv6 related utility classes in Wildfly / Elytron / ...

[Darran Lofthouse]

On 27/02/17 14:17, Tomaž Cerar wrote:
 >
 > On Mon, Feb 27, 2017 at 1:23 PM, Tomas Hofman <thofman at redhat.com
 > <mailto:thofman at redhat.com>> wrote:
 >
 >     I'm working on an issue in Elytron, which requires validation of IPv6
 >     addresses. Potentially also normalizing IPv6 addresses and matching
 >     addresses by masks could be needed in future. For now I 
implemented my
 >     own validation code which may be good enough, but still, better 
would be
 >     to rely on proven utility class.
 >
 >
 >
 >     Do we use some standard library for such purposes, or is there such
 >     functionality in JBoss codebase somewhere? I found NetworkUtils 
class in
 >     wildfly-network package, which does some of that, but that can't 
be used
 >     in Elytron.
 >
 > What is the use case?

Detection of and matching of IPv6 addresses including canonicalisation 
for different representations of the same address.

Note: This is not DNS lookup or reverse DNS lookup.

 >
 >
 >
 >     Are there some rules when considering new dependencies? For instance
 >     would Apache Commons Validator/Net represent conceivable dependencies
 >     for Elytron?
 >
 > new runtime dependency? I would avoid them if possible.
 > Especially when it comes to Apache Commons * ...

+1 This code may be used by all remote clients and all deployments.

 > --
 > tomaz
 >
 >
 >
 >
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