Implement refresh token endpoint

Signed-off-by: Nikolai Rodionov <allanger@badhouseplants.net>

internal/authorization/auth_test.go

@@ -0,0 +1,57 @@
+package authorization_test
+
+import (
+	"testing"
+	"time"
+
+	"gitea.badhouseplants.net/softplayer/softplayer-backend/internal/authorization"
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/assert"
+)
+
+var (
+	testAccessTTL  = time.Second * 5
+	testRefreshTTL = time.Second * 20
+	testUserID     = uuid.New().String()
+)
+
+func TestGenerateInvalidTokenType(t *testing.T) {
+	authCtrl := authorization.NewAuthController([]byte("test"), testAccessTTL, testRefreshTTL, nil)
+	token, _, err := authCtrl.GenerateToken(testUserID, "invalid_type")
+	assert.Equal(t, "", token)
+	assert.ErrorIs(t, authorization.ErrUnknownTokenType, err)
+}
+
+func TestGenerateValidateAccessToken(t *testing.T) {
+	authCtrl := authorization.NewAuthController([]byte("test"), testAccessTTL, testRefreshTTL, nil)
+	now := time.Now()
+	token, _, err := authCtrl.GenerateToken(testUserID, authorization.TokenTypeAccess)
+	assert.NoError(t, err)
+	assert.NotEmpty(t, token)
+
+	claims, err := authCtrl.ParseToken(token)
+	assert.NoError(t, err)
+	assert.Equal(t, testUserID, claims.UserID)
+	assert.NotEmpty(t, claims.TokenID)
+	assert.Equal(t, authorization.TokenTypeAccess, claims.TokenType)
+	assert.Equal(t, now.Add(testAccessTTL).Unix(), claims.ExpiresAt.Unix())
+	assert.Equal(t, now.Unix(), claims.IssuedAt.Unix())
+	assert.Equal(t, now.Unix(), claims.NotBefore.Unix())
+}
+
+func TestGenerateValidateRefreshToken(t *testing.T) {
+	authCtrl := authorization.NewAuthController([]byte("test"), testAccessTTL, testRefreshTTL, nil)
+	now := time.Now()
+	token, _, err := authCtrl.GenerateToken(testUserID, authorization.TokenTypeRefresh)
+	assert.NoError(t, err)
+	assert.NotEmpty(t, token)
+
+	claims, err := authCtrl.ParseToken(token)
+	assert.NoError(t, err)
+	assert.Equal(t, testUserID, claims.UserID)
+	assert.NotEmpty(t, claims.TokenID)
+	assert.Equal(t, authorization.TokenTypeRefresh, claims.TokenType)
+	assert.Equal(t, now.Add(testRefreshTTL).Unix(), claims.ExpiresAt.Unix())
+	assert.Equal(t, now.Unix(), claims.IssuedAt.Unix())
+	assert.Equal(t, now.Unix(), claims.NotBefore.Unix())
+}