From 11f0b097259a79befecf566b38d76e01bc0fd5c9 Mon Sep 17 00:00:00 2001
From: Chandler Swift <chandler@chandlerswift.com>
Date: Sun, 29 Mar 2020 21:05:34 -0500
Subject: [PATCH] Add HTTPS support

---
 factorio-site.go | 19 ++++++++++++++++++-
 go.mod           |  5 ++++-
 go.sum           |  9 +++++++++
 3 files changed, 31 insertions(+), 2 deletions(-)

diff --git a/factorio-site.go b/factorio-site.go
index cb2ca27..1f8066b 100644
--- a/factorio-site.go
+++ b/factorio-site.go
@@ -1,6 +1,7 @@
 package main
 
 import (
+	"crypto/tls"
 	"flag"
 	"fmt"
 	"html/template"
@@ -8,6 +9,7 @@ import (
 	"net/http"
 
 	"github.com/james4k/rcon"
+	"golang.org/x/crypto/acme/autocert"
 )
 
 type serverData struct {
@@ -69,7 +71,22 @@ func main() {
 		t.Execute(w, data)
 	})
 
+	certManager := autocert.Manager{
+		Prompt:     autocert.AcceptTOS,
+		HostPolicy: autocert.HostWhitelist("factorio.blackolivepineapple.pizza"), // TODO: add config
+		Cache:      autocert.DirCache("certs"),
+	}
+
+	server := &http.Server{
+		Addr: ":https",
+		TLSConfig: &tls.Config{
+			GetCertificate: certManager.GetCertificate,
+		},
+	}
+
+	go http.ListenAndServe(":http", certManager.HTTPHandler(nil)) // Handler for LetsEncrypt
+
 	fmt.Println("Serving...")
-	http.ListenAndServe(":http", nil)
+	server.ListenAndServeTLS("", "") // Key/cert come from server.TLSConfig
 
 }
diff --git a/go.mod b/go.mod
index c1890a4..ea2ff3a 100644
--- a/go.mod
+++ b/go.mod
@@ -2,4 +2,7 @@ module github.com/chandlerswift/factorio-site
 
 go 1.14
 
-require github.com/james4k/rcon v0.0.0-20120923215419-8fbb8268b60a
+require (
+	github.com/james4k/rcon v0.0.0-20120923215419-8fbb8268b60a
+	golang.org/x/crypto v0.0.0-20200323165209-0ec3e9974c59
+)
diff --git a/go.sum b/go.sum
index a8fa9d6..9a448f9 100644
--- a/go.sum
+++ b/go.sum
@@ -1,2 +1,11 @@
 github.com/james4k/rcon v0.0.0-20120923215419-8fbb8268b60a h1:JxcWget6X/VfBMKxPIc28Jel37LGREut2fpV+ObkwJ0=
 github.com/james4k/rcon v0.0.0-20120923215419-8fbb8268b60a/go.mod h1:1qNVsDcmNQDsAXYfUuF/Z0rtK5eT8x9D6Pi7S3PjXAg=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20200323165209-0ec3e9974c59 h1:3zb4D3T4G8jdExgVU/95+vQXfpEPiMdCaZgmGVxjNHM=
+golang.org/x/crypto v0.0.0-20200323165209-0ec3e9974c59/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3 h1:0GoQqolDA55aaLxZyTzK/Y2ePZzZTUrRacwib7cNsYQ=
+golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=