Add Go webserver.

1 files changed, 83 insertions, 0 deletions

diff --git a/cmd/http/main.go b/cmd/http/main.go
new file mode 100644
index 0000000..828b9d8
--- /dev/null
+++ b/cmd/http/main.go
@@ -0,0 +1,83 @@
+package main
+
+import (
+	"flag"
+	"log"
+	"net/http"
+	"os"
+	"strings"
+)
+
+var (
+	fullchain = "/etc/letsencrypt/live/alexscerba.com/fullchain.pem"
+	privkey   = "/etc/letsencrypt/live/alexscerba.com/privkey.pem"
+)
+
+type application struct {
+	errorLog *log.Logger
+	infoLog  *log.Logger
+}
+
+func (app *application) httpsRedirect(w http.ResponseWriter, req *http.Request) {
+	// remove/add not default ports from req.Host
+	target := "https://" + req.Host + req.URL.Path
+	if len(req.URL.RawQuery) > 0 {
+		target += "?" + req.URL.RawQuery
+	}
+	app.infoLog.Printf("redirect to: %s", target)
+	http.Redirect(w, req, target,
+		// see comments below and consider the codes 308, 302, or 301
+		http.StatusMovedPermanently)
+}
+
+func (app *application) wwwRedirect(h http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if !strings.HasPrefix(r.Host, "www.") {
+			http.Redirect(w, r, "https://www."+r.Host+r.RequestURI, 302)
+			return
+		}
+
+		h.ServeHTTP(w, r)
+	})
+}
+
+func main() {
+	addr := flag.String("addr", ":4002", "HTTP Network Address")
+	flag.Parse() // required before flag is used
+
+	infoLog := log.New(os.Stdout, "INFO\t", log.Ldate|log.Ltime)
+	errorLog := log.New(os.Stderr, "ERROR\t", log.Ldate|log.Ltime|log.Lshortfile)
+
+	app := &application{
+		errorLog: errorLog,
+		infoLog:  infoLog,
+	}
+
+	mux := http.NewServeMux()
+
+	fs := http.FileServer(http.Dir("./static"))
+	mux.Handle("/static/", http.StripPrefix("/static/", fs))
+
+	mux.HandleFunc("/faq", app.faq)
+	mux.HandleFunc("/faq/", app.faq)
+	mux.HandleFunc("/about", app.about)
+	mux.HandleFunc("/about/", app.about)
+	mux.HandleFunc("/gallery", app.gallery)
+	mux.HandleFunc("/gallery/", app.gallery)
+	mux.HandleFunc("/blog", app.blog)
+	mux.HandleFunc("/blog/", app.blog)
+	mux.HandleFunc("/", app.home)
+
+	if *addr == ":443" {
+		www := app.wwwRedirect(mux)
+
+		infoLog.Printf("Starting TLS server on %s...\n", *addr)
+		go http.ListenAndServe(":80", www)
+		err := http.ListenAndServeTLS(*addr, fullchain, privkey, gzipHandler(www))
+		log.Fatal(err)
+	} else {
+		infoLog.Printf("Starting server on %s...\n", *addr)
+		err := http.ListenAndServe(*addr, gzipHandler(mux))
+		log.Fatal(err)
+	}
+}