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package middleware
import (
"context"
"encoding/json"
"errors"
"net/http"
"net/http/httptest"
"testing"
"github.com/Wei-Shaw/sub2api/internal/config"
"github.com/Wei-Shaw/sub2api/internal/service"
"github.com/gin-gonic/gin"
"github.com/stretchr/testify/require"
)
// stubJWTUserRepo 实现 UserRepository 的最小子集，仅支持 GetByID。
type stubJWTUserRepo struct {
service.UserRepository
users map[int64]*service.User
}
func (r *stubJWTUserRepo) GetByID(_ context.Context, id int64) (*service.User, error) {
u, ok := r.users[id]
if !ok {
return nil, errors.New("user not found")
}
return u, nil
}
// newJWTTestEnv 创建 JWT 认证中间件测试环境。
// 返回 gin.Engine（已注册 JWT 中间件）和 AuthService（用于生成 Token）。
func newJWTTestEnv(users map[int64]*service.User) (*gin.Engine, *service.AuthService) {
gin.SetMode(gin.TestMode)
cfg := &config.Config{}
cfg.JWT.Secret = "test-jwt-secret-32bytes-long!!!"
cfg.JWT.AccessTokenExpireMinutes = 60
userRepo := &stubJWTUserRepo{users: users}
authSvc := service.NewAuthService(nil, userRepo, nil, nil, cfg, nil, nil, nil, nil, nil, nil)
userSvc := service.NewUserService(userRepo, nil, nil)
mw := NewJWTAuthMiddleware(authSvc, userSvc)
r := gin.New()
r.Use(gin.HandlerFunc(mw))
r.GET("/protected", func(c *gin.Context) {
subject, _ := GetAuthSubjectFromContext(c)
role, _ := GetUserRoleFromContext(c)
c.JSON(http.StatusOK, gin.H{
"user_id": subject.UserID,
"role": role,
})
})
return r, authSvc
}
func TestJWTAuth_ValidToken(t *testing.T) {
user := &service.User{
ID: 1,
Email: "test@example.com",
Role: "user",
Status: service.StatusActive,
Concurrency: 5,
TokenVersion: 1,
}
router, authSvc := newJWTTestEnv(map[int64]*service.User{1: user})
token, err := authSvc.GenerateToken(user)
require.NoError(t, err)
w := httptest.NewRecorder()
req := httptest.NewRequest(http.MethodGet, "/protected", nil)
req.Header.Set("Authorization", "Bearer "+token)
router.ServeHTTP(w, req)
require.Equal(t, http.StatusOK, w.Code)
var body map[string]any
require.NoError(t, json.Unmarshal(w.Body.Bytes(), &body))
require.Equal(t, float64(1), body["user_id"])
require.Equal(t, "user", body["role"])
}
func TestJWTAuth_ValidToken_LowercaseBearer(t *testing.T) {
user := &service.User{
ID: 1,
Email: "test@example.com",
Role: "user",
Status: service.StatusActive,
Concurrency: 5,
TokenVersion: 1,
}
router, authSvc := newJWTTestEnv(map[int64]*service.User{1: user})
token, err := authSvc.GenerateToken(user)
require.NoError(t, err)
w := httptest.NewRecorder()
req := httptest.NewRequest(http.MethodGet, "/protected", nil)
req.Header.Set("Authorization", "bearer "+token)
router.ServeHTTP(w, req)
require.Equal(t, http.StatusOK, w.Code)
}
func TestJWTAuth_MissingAuthorizationHeader(t *testing.T) {
router, _ := newJWTTestEnv(nil)
w := httptest.NewRecorder()
req := httptest.NewRequest(http.MethodGet, "/protected", nil)
router.ServeHTTP(w, req)
require.Equal(t, http.StatusUnauthorized, w.Code)
var body ErrorResponse
require.NoError(t, json.Unmarshal(w.Body.Bytes(), &body))
require.Equal(t, "UNAUTHORIZED", body.Code)
}
func TestJWTAuth_InvalidHeaderFormat(t *testing.T) {
tests := []struct {
name string
header string
}{
{"无Bearer前缀", "Token abc123"},
{"缺少空格分隔", "Bearerabc123"},
{"仅有单词", "abc123"},
}
router, _ := newJWTTestEnv(nil)
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
w := httptest.NewRecorder()
req := httptest.NewRequest(http.MethodGet, "/protected", nil)
req.Header.Set("Authorization", tt.header)
router.ServeHTTP(w, req)
require.Equal(t, http.StatusUnauthorized, w.Code)
var body ErrorResponse
require.NoError(t, json.Unmarshal(w.Body.Bytes(), &body))
require.Equal(t, "INVALID_AUTH_HEADER", body.Code)
})
}
}
func TestJWTAuth_EmptyToken(t *testing.T) {
router, _ := newJWTTestEnv(nil)
w := httptest.NewRecorder()
req := httptest.NewRequest(http.MethodGet, "/protected", nil)
req.Header.Set("Authorization", "Bearer ")
router.ServeHTTP(w, req)
require.Equal(t, http.StatusUnauthorized, w.Code)
var body ErrorResponse
require.NoError(t, json.Unmarshal(w.Body.Bytes(), &body))
require.Equal(t, "EMPTY_TOKEN", body.Code)
}
func TestJWTAuth_TamperedToken(t *testing.T) {
router, _ := newJWTTestEnv(nil)
w := httptest.NewRecorder()
req := httptest.NewRequest(http.MethodGet, "/protected", nil)
req.Header.Set("Authorization", "Bearer eyJhbGciOiJIUzI1NiJ9.eyJ1c2VyX2lkIjoxfQ.invalid_signature")
router.ServeHTTP(w, req)
require.Equal(t, http.StatusUnauthorized, w.Code)
var body ErrorResponse
require.NoError(t, json.Unmarshal(w.Body.Bytes(), &body))
require.Equal(t, "INVALID_TOKEN", body.Code)
}
func TestJWTAuth_UserNotFound(t *testing.T) {
// 使用 user ID=1 的 token，但 repo 中没有该用户
fakeUser := &service.User{
ID: 999,
Email: "ghost@example.com",
Role: "user",
Status: service.StatusActive,
TokenVersion: 1,
}
// 创建环境时不注入此用户，这样 GetByID 会失败
router, authSvc := newJWTTestEnv(map[int64]*service.User{})
token, err := authSvc.GenerateToken(fakeUser)
require.NoError(t, err)
w := httptest.NewRecorder()
req := httptest.NewRequest(http.MethodGet, "/protected", nil)
req.Header.Set("Authorization", "Bearer "+token)
router.ServeHTTP(w, req)
require.Equal(t, http.StatusUnauthorized, w.Code)
var body ErrorResponse
require.NoError(t, json.Unmarshal(w.Body.Bytes(), &body))
require.Equal(t, "USER_NOT_FOUND", body.Code)
}
func TestJWTAuth_UserInactive(t *testing.T) {
user := &service.User{
ID: 1,
Email: "disabled@example.com",
Role: "user",
Status: service.StatusDisabled,
TokenVersion: 1,
}
router, authSvc := newJWTTestEnv(map[int64]*service.User{1: user})
token, err := authSvc.GenerateToken(user)
require.NoError(t, err)
w := httptest.NewRecorder()
req := httptest.NewRequest(http.MethodGet, "/protected", nil)
req.Header.Set("Authorization", "Bearer "+token)
router.ServeHTTP(w, req)
require.Equal(t, http.StatusUnauthorized, w.Code)
var body ErrorResponse
require.NoError(t, json.Unmarshal(w.Body.Bytes(), &body))
require.Equal(t, "USER_INACTIVE", body.Code)
}
func TestJWTAuth_TokenVersionMismatch(t *testing.T) {
// Token 生成时 TokenVersion=1，但数据库中用户已更新为 TokenVersion=2（密码修改）
userForToken := &service.User{
ID: 1,
Email: "test@example.com",
Role: "user",
Status: service.StatusActive,
TokenVersion: 1,
}
userInDB := &service.User{
ID: 1,
Email: "test@example.com",
Role: "user",
Status: service.StatusActive,
TokenVersion: 2, // 密码修改后版本递增
}
router, authSvc := newJWTTestEnv(map[int64]*service.User{1: userInDB})
token, err := authSvc.GenerateToken(userForToken)
require.NoError(t, err)
w := httptest.NewRecorder()
req := httptest.NewRequest(http.MethodGet, "/protected", nil)
req.Header.Set("Authorization", "Bearer "+token)
router.ServeHTTP(w, req)
require.Equal(t, http.StatusUnauthorized, w.Code)
var body ErrorResponse
require.NoError(t, json.Unmarshal(w.Body.Bytes(), &body))
require.Equal(t, "TOKEN_REVOKED", body.Code)
}
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