Removing external lib for parsing env gianarb#33

Author: Manuel Bovo

api/basicauth.go

@@ -2,14 +2,17 @@ package api
 
 import (
 	"github.com/Sirupsen/logrus"
-	"github.com/kelseyhightower/envconfig"
+	// 	"github.com/kelseyhightower/envconfig"
 	"net/http"
+	"os"
+	"strconv"
+	"strings"
 )
 
 type AuthConfig struct {
-	AuthEnabled    bool              `split_words:"true" default:"false"`
-	AuthRealm      string            `split_words:"true" default:"Restricted"`
-	AuthCredential map[string]string `split_words:"true" default:"orbiter:orbiter"`
+	AuthEnabled     bool              `split_words:"true" default:"false"`
+	AuthRealm       string            `split_words:"true" default:"Restricted"`
+	AuthCredentials map[string]string `split_words:"true" default:"orbiter:orbiter"`
 }
 
 func wrap(h http.HandlerFunc, funx ...func(http.HandlerFunc) http.HandlerFunc) http.HandlerFunc {
@@ -22,10 +25,26 @@ func wrap(h http.HandlerFunc, funx ...func(http.HandlerFunc) http.HandlerFunc) h
 func basicAuth(h http.HandlerFunc) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 
-		var ac AuthConfig
-		e := envconfig.Process("orbiter", &ac)
-		if e != nil {
-			logrus.Fatal(e.Error())
+		ac := new(AuthConfig)
+
+		s, e := os.LookupEnv("ORBITER_AUTH_ENABLED")
+		ac.AuthEnabled, _ = strconv.ParseBool(s)
+		if !e {
+			ac.AuthEnabled = e
+		}
+		s, e = os.LookupEnv("ORBITER_AUTH_REALM")
+		ac.AuthRealm = s
+		if !e {
+			ac.AuthRealm = "Restricted"
+		}
+		s, e = os.LookupEnv("ORBITER_AUTH_CREDENTIALS")
+		if e {
+			for _, pair := range strings.Split(s, ",") {
+				auth := strings.Split(pair, ":")
+				ac.AuthCredentials[auth[0]] = auth[1]
+			}
+		} else {
+			ac.AuthCredentials["orbiter"] = "orbiter"
 		}
 
 		w.Header().Set("WWW-Authenticate", `Basic realm="`+ac.AuthRealm+`"`)
@@ -38,7 +57,7 @@ func basicAuth(h http.HandlerFunc) http.HandlerFunc {
 			return
 		}
 
-		if ac.AuthCredential[u] != p {
+		if ac.AuthCredentials[u] != p {
 			logrus.Warnf("Invalid username or password for user %s", u)
 			w.WriteHeader(401)
 			w.Write([]byte("Invalid username or password"))