HTTPS And HTTP On Same Port

Listen HTTPS and HTTP on same port.

If you only need redirect to HTTPS, recommended use hlfhr.

Setup

go get github.com/bddjr/hahosp

srv := &http.Server{
    Addr:    ":5688"
    // Use hahosp.HandlerSelector
    Handler: &hahosp.HandlerSelector{
        HTTPS: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
            io.WriteString(w, "ok\n")
        }),
        HTTP: nil, // If nil, redirect to HTTPS.
    },
}

// Use hahosp.ListenAndServe
err := hahosp.ListenAndServe(srv, "localhost.crt", "localhost.key")

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Logic

flowchart TD
	VirtualListener("Hijacking net.Listener")
    VirtualAccept("🔄📥Virtual accept")
    Accept("🔄 Accept")
    Serve(["✅ serve..."])
	LooksLike{{"Read first byte looks like ?"}}
	Close(["❌ Close."])
    HijackingNetConn("Hijacking net.Conn")
    SentToVA(["📤Send to Virtual accept"])
    NewTLS("New tls.Conn")

    VirtualListener -- "http.Server Serve" --> VirtualAccept -- "async" --> Serve
    VirtualListener -- "async hahosp Serve" --> Accept -- "async"  --> HijackingNetConn --> LooksLike
    LooksLike -- "❓Unknown" --> Close
    LooksLike -- "📄HTTP" --> SentToVA
    LooksLike -- "🔐TLS" --> NewTLS --> SentToVA

---

Test

git clone https://github.com/bddjr/hahosp
cd hahosp
chmod +x run.sh
./run.sh

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Reference

https://github.com/bddjr/hlfhr

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License

BSD-3-clause license