Support SSL about xoom-http

[VaughnVernon]

From discussions with @aleixmorgadas and @kmruiz it seems best to postpone this indefinitely or at least until we have strong proof that it is needed. We have decided that this kind of support should be provided by existing tools such as NGINX, CloudFront, etc., and that vlingo/http is best served by focusing on fluent tooling for DDD-based use cases.

[VaughnVernon]

We need vlingo/http servers to support SSL/HTTPS. We need vlingo/http non-blocking clients to be able to access SSL/HTTPS servers.

Please see additional information on examples:
https://groups.google.com/forum/#!searchin/conscrypt/example%7Csort:date/conscrypt/T4c2YCY91qc/2tkxgHcTBAAJ

Conscrypt is a JCA security provider, so for the most part you just use the standard JCA APIs.
https://docs.oracle.com/javase/9/security/java-cryptography-architecture-jca-reference-guide.htm

For your specific example, see:
https://stackoverflow.com/questions/11787571/how-to-read-pem-file-to-get-private-and-public-key.

To add SSL support we need to touch two components, http and wire.

For vlingo-http, I would start checking the next two classes:

• Server
• ServerActor

Since what people use is vlingo-http, we need here the way to enable the SSL/HTTPS support.

vlingo-http delegate the actual Server implementation into vlingo-wire component/module. For wire, I would start checking the direct class used by ServerActor:

• ServerRequestResponseChannel
• ServerRequestResponseChannelActor, it contains the java.nio.channels.ServerSocketChannel

I think it should be possible to enable the SSL using those classes, or those plus the used by them.

If more information is needed, please, don't hesitate to post your question ^^

[VaughnVernon]

@aleixyz You can now see an issue here vlingo/xoom-wire#6 that indicates how this can be achieved with NIO.

[VaughnVernon]

Implemented/Fixed with: vlingo/xoom-wire#6