Flash can now serve HTTPS and WSS, on one or many listeners per app:
- FlashConfiguration gains an optional `tls` field for the single default
listener, and a `listeners` list for apps that bind multiple ports (each
independently plain or TLS).
- New dev.relism.flash.tls package: TlsConfig.keystore(path, password) builds
an SSLContext from a PKCS12/JKS keystore, with SNI-based certificate
selection for free when the keystore holds more than one alias (matched by
SAN/CN, pure JDK APIs). TlsConfig.ofContext(sslContext) is a full escape
hatch — Flash never calls setSSLParameters on that path, so caller-set
protocols/cipher suites/ALPN survive untouched. TlsConfig.clientAuth(...)
adds optional/required mTLS on either path.
- HttpServer moves from a single ServerSocket to a list of bound listeners;
the per-request hot path (RequestParser, routing, response writing) is
untouched — TLS only changes which bytes come out of accept(), so WSS needs
no separate code path from WS.
- process()'s catch is widened to log non-IOException failures (e.g. a
misbehaving custom KeyManager/TrustManager on the ofContext path) instead
of swallowing them silently; the failure was already isolated to the one
connection via the existing try-with-resources/executor-submission
boundary — this only fixes the missing log line.
- Fixes a pre-existing gap where FlashConfiguration#host was accepted but
never used to bind (listeners always bound to the wildcard address).
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
