From d437b73a8c2dda9884c92d2be44727e66c2289e2 Mon Sep 17 00:00:00 2001
From: "kali kaneko (leap communications)" <kali@leap.se>
Date: Fri, 24 Jan 2020 21:19:19 -0600
Subject: refactor into cmd/pkg

---
 main.go | 144 ----------------------------------------------------------------
 1 file changed, 144 deletions(-)
 delete mode 100644 main.go

(limited to 'main.go')

diff --git a/main.go b/main.go
deleted file mode 100644
index 3259d1f..0000000
--- a/main.go
+++ /dev/null
@@ -1,144 +0,0 @@
-package main
-
-import (
-	"flag"
-	"log"
-	"net/http"
-	"os"
-	"reflect"
-)
-
-const keySize = 2048
-const expiryDays = 28
-const DefaultAuthenticationModule = "anonymous"
-
-type certHandler struct {
-	cainfo caInfo
-}
-
-func (ch *certHandler) certResponder(w http.ResponseWriter, r *http.Request) {
-	ch.cainfo.CertWriter(w)
-}
-
-type Opts struct {
-	Notls  bool
-	CaCrt  string
-	CaKey  string
-	TlsCrt string
-	TlsKey string
-	Port   string
-	Auth   string
-}
-
-func (o *Opts) fallbackToEnv(field string, envVar string, defaultVal string) {
-	r := reflect.ValueOf(o)
-	f := reflect.Indirect(r).FieldByName(field)
-
-	if f.String() == "" {
-		val, exists := os.LookupEnv(envVar)
-		if exists && val != "" {
-			f.SetString(val)
-		} else {
-			f.SetString(defaultVal)
-		}
-	}
-}
-
-func doCaFilesSanityCheck(caCrt string, caKey string) {
-	if _, err := os.Stat(caCrt); os.IsNotExist(err) {
-		log.Fatal("cannot find caCrt file")
-	}
-	if _, err := os.Stat(caKey); os.IsNotExist(err) {
-		log.Fatal("cannot find caKey file")
-	}
-}
-
-func doTlsFilesSanityCheck(tlsCrt string, tlsKey string) {
-	if _, err := os.Stat(tlsCrt); os.IsNotExist(err) {
-		log.Fatal("cannot find tlsCrt file")
-	}
-	if _, err := os.Stat(tlsKey); os.IsNotExist(err) {
-		log.Fatal("cannot find tlsKey file")
-	}
-}
-
-func httpFileHandler(route string, path string) {
-	http.HandleFunc(route, func(w http.ResponseWriter, r *http.Request) {
-		http.ServeFile(w, r, path)
-	})
-}
-
-func initializeFlags(opts *Opts) {
-
-	flag.BoolVar(&opts.Notls, "notls", false, "disable TLS on the service")
-	flag.StringVar(&opts.CaCrt, "caCrt", "", "path to the CA public key")
-	flag.StringVar(&opts.CaKey, "caKey", "", "path to the CA private key")
-	flag.StringVar(&opts.TlsCrt, "tls_crt", "", "path to the cert file for TLS")
-	flag.StringVar(&opts.TlsKey, "tls_key", "", "path to the key file for TLS")
-	flag.StringVar(&opts.Port, "port", "", "port where the server will listen (default: 8000)")
-	flag.StringVar(&opts.Auth, "auth", "", "authentication module (anonymous, sip)")
-	flag.Parse()
-
-	opts.fallbackToEnv("CaCrt", "VPNWEB_CACRT", "")
-	opts.fallbackToEnv("CaKey", "VPNWEB_CAKEY", "")
-	opts.fallbackToEnv("TlsCrt", "VPNWEB_TLSCRT", "")
-	opts.fallbackToEnv("TlsKey", "VPNWEB_TLSKEY", "")
-	opts.fallbackToEnv("Port", "VPNWEB_PORT", "8000")
-	opts.fallbackToEnv("Auth", "VPNWEB_AUTH", DefaultAuthenticationModule)
-}
-
-func checkConfigurationOptions(opts *Opts) {
-
-	if opts.CaCrt == "" {
-		log.Fatal("missing caCrt parameter")
-	}
-	if opts.CaKey == "" {
-		log.Fatal("missing caKey parameter")
-	}
-
-	if opts.Notls == false {
-		if opts.TlsCrt == "" {
-			log.Fatal("missing tls_crt parameter. maybe use -notls?")
-		}
-		if opts.TlsKey == "" {
-			log.Fatal("missing tls_key parameter. maybe use -notls?")
-		}
-	}
-
-	doCaFilesSanityCheck(opts.CaCrt, opts.CaKey)
-	if opts.Notls == false {
-		doTlsFilesSanityCheck(opts.TlsCrt, opts.TlsKey)
-	}
-
-	log.Println("authentication module:", opts.Auth)
-
-	// TODO -- check authentication module is valud, bail out otherwise
-}
-
-func main() {
-	opts := new(Opts)
-	initializeFlags(opts)
-	checkConfigurationOptions(opts)
-
-	ci := newCaInfo(opts.CaCrt, opts.CaKey)
-	ch := certHandler{ci}
-
-	// add routes here
-	http.HandleFunc("/3/cert", ch.certResponder)
-	httpFileHandler("/3/configs.json", "./public/3/configs.json")
-	httpFileHandler("/3/service.json", "./public/3/service.json")
-	httpFileHandler("/3/config/eip-service.json", "./public/3/eip-service.json")
-	httpFileHandler("/provider.json", "./public/provider.json")
-	httpFileHandler("/ca.crt", "./public/ca.crt")
-	httpFileHandler("/3/ca.crt", "./public/ca.crt")
-
-	pstr := ":" + opts.Port
-	log.Println("serving vpnweb in port", opts.Port)
-
-	if opts.Notls == true {
-		log.Fatal(http.ListenAndServe(pstr, nil))
-	} else {
-		log.Fatal(http.ListenAndServeTLS(pstr, opts.TlsCrt, opts.TlsKey, nil))
-
-	}
-}
-- 
cgit v1.2.3