feat: add authentication via JWT token

engine/auth/auth_test.go

@@ -0,0 +1,55 @@
+package auth_test
+
+import (
+	"testing"
+	"time"
+
+	"github.com/deluan/navidrome/engine/auth"
+	"github.com/deluan/navidrome/log"
+	"github.com/dgrijalva/jwt-go"
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+func TestAuth(t *testing.T) {
+	log.SetLevel(log.LevelCritical)
+	RegisterFailHandler(Fail)
+	RunSpecs(t, "Auth Test Suite")
+}
+
+const testJWTSecret = "not so secret"
+
+var _ = Describe("Auth", func() {
+	BeforeEach(func() {
+		auth.JwtSecret = []byte(testJWTSecret)
+	})
+	Context("Validate", func() {
+		It("returns error with an invalid JWT token", func() {
+			_, err := auth.Validate("invalid.token")
+			Expect(err).To(Not(BeNil()))
+		})
+
+		It("returns the claims from a valid JWT token", func() {
+			token := jwt.New(jwt.SigningMethodHS256)
+			claims := token.Claims.(jwt.MapClaims)
+			claims["iss"] = "issuer"
+			claims["exp"] = time.Now().Add(1 * time.Minute).Unix()
+			tokenStr, _ := token.SignedString(auth.JwtSecret)
+
+			decodedClaims, err := auth.Validate(tokenStr)
+			Expect(err).To(BeNil())
+			Expect(decodedClaims["iss"]).To(Equal("issuer"))
+		})
+
+		It("returns ErrExpired if the `exp` field is in the past", func() {
+			token := jwt.New(jwt.SigningMethodHS256)
+			claims := token.Claims.(jwt.MapClaims)
+			claims["iss"] = "issuer"
+			claims["exp"] = time.Now().Add(-1 * time.Minute).Unix()
+			tokenStr, _ := token.SignedString(auth.JwtSecret)
+
+			_, err := auth.Validate(tokenStr)
+			Expect(err).To(MatchError("Token is expired"))
+		})
+	})
+})