Files
MeBox/internal/handler/mobile_auth.go
T

396 lines
14 KiB
Go

// Package handler — 移动端 /api/v1 认证端点。
package handler
import (
"context"
"errors"
"net/http"
"strings"
"time"
"github.com/gin-gonic/gin"
"github.com/golang-jwt/jwt/v5"
"go.uber.org/zap"
"github.com/truewhile/MeBox/internal/middleware"
"github.com/truewhile/MeBox/internal/model"
"github.com/truewhile/MeBox/internal/repository"
"github.com/truewhile/MeBox/internal/service"
)
// mobileUserPayload 是 v1 返回的用户摘要。这里显式挑选字段,避免把仅服务端
// 使用的偏好和内部状态带进新契约。
type mobileUserPayload struct {
ID string `json:"id"`
Username string `json:"username"`
Nickname string `json:"nickname,omitempty"`
Role string `json:"role"`
Tier string `json:"tier"`
IsActive bool `json:"is_active"`
ForcePasswordReset bool `json:"force_password_reset"`
ExpiresAt *time.Time `json:"expires_at,omitempty"`
}
func toMobileUserPayload(u *model.User) *mobileUserPayload {
if u == nil {
return nil
}
return &mobileUserPayload{
ID: u.ID,
Username: u.Username,
Nickname: u.Nickname,
Role: u.Role,
Tier: u.Tier,
IsActive: u.IsActive,
ForcePasswordReset: u.ForcePasswordReset,
ExpiresAt: u.ExpiredAt,
}
}
type mobileSessionPayload struct {
AuthSessionID string `json:"auth_session_id"`
DeviceID string `json:"device_id"`
DeviceName string `json:"device_name,omitempty"`
ClientName string `json:"client_name,omitempty"`
ClientVersion string `json:"client_version,omitempty"`
CreatedAt time.Time `json:"created_at"`
LastUsedAt time.Time `json:"last_used_at"`
ExpiresAt time.Time `json:"expires_at"`
}
func toMobileSessionPayload(s *model.AuthSession) *mobileSessionPayload {
if s == nil {
return nil
}
return &mobileSessionPayload{
AuthSessionID: s.ID,
DeviceID: s.DeviceID,
DeviceName: s.DeviceName,
ClientName: s.ClientName,
ClientVersion: s.ClientVersion,
CreatedAt: s.CreatedAt,
LastUsedAt: s.LastUsedAt,
ExpiresAt: s.ExpiresAt,
}
}
type mobileLoginRequest struct {
Username string `json:"username" binding:"required"`
Password string `json:"password" binding:"required"`
DeviceID string `json:"device_id" binding:"required"`
DeviceName string `json:"device_name"`
ClientName string `json:"client_name"`
ClientVersion string `json:"client_version"`
}
type mobileRefreshRequest struct {
RefreshToken string `json:"refresh_token" binding:"required"`
}
// mobileAuthRequired 是 v1 专用认证中间件:要求有效 JWT + 有效设备会话,
// 并统一输出 v1 错误契约。
func mobileAuthRequired(svc *service.Container) gin.HandlerFunc {
return func(c *gin.Context) {
raw := middleware.ExtractToken(c)
if raw == "" {
writeMobileError(c, http.StatusUnauthorized, mobileCodeInvalidCredentials,
"access token required", false, 0)
return
}
claims, err := svc.Token.ValidateAccessToken(raw)
if err != nil {
if errors.Is(err, jwt.ErrTokenExpired) {
writeMobileError(c, http.StatusUnauthorized, mobileCodeTokenExpired,
"access token expired", false, 0)
return
}
writeMobileError(c, http.StatusUnauthorized, mobileCodeInvalidCredentials,
"invalid access token", false, 0)
return
}
if strings.TrimSpace(claims.Purpose) != "" {
writeMobileError(c, http.StatusForbidden, mobileCodePermissionDenied,
"token scope denied for this endpoint", false, 0)
return
}
sessionID := strings.TrimSpace(claims.Sid)
if sessionID == "" {
// v1 客户端必须使用登录时创建的会话;旧网页令牌不进入移动端契约。
writeMobileError(c, http.StatusUnauthorized, mobileCodeInvalidCredentials,
"auth session required; sign in again", false, 0)
return
}
session, err := svc.AuthSessions.Validate(c.Request.Context(), sessionID, claims.UserID)
if err != nil {
if service.IsTransientDatabaseLock(err) {
writeMobileError(c, http.StatusServiceUnavailable, mobileCodeServiceUnavailable,
"auth session check temporarily unavailable", true, 2)
return
}
writeMobileError(c, http.StatusUnauthorized, mobileCodeSessionRevoked,
"auth session revoked or expired", false, 0)
return
}
c.Set(middleware.CtxUserID, claims.UserID)
c.Set(middleware.CtxUserRole, claims.Role)
c.Set(middleware.CtxUserTier, claims.Tier)
c.Set(middleware.CtxAuthSessionID, sessionID)
c.Set(mobileCtxAuthSession, session)
// 每个请求写一次 last_used_at 会在 SQLite 上造成不必要的写锁竞争;
// 一分钟内的重复请求不更新,足以支撑设备列表的“最近活动”。
if time.Since(session.LastUsedAt) > time.Minute {
svc.AuthSessions.Touch(c.Request.Context(), sessionID)
}
c.Next()
}
}
// mobileLogoutAuthRequired 只校验 JWT 与 sid,不要求会话仍然有效。
// 退出必须幂等:同一个令牌重复调用 logout 也要返回成功,而不是在第二次
// 被会话校验拦成 401。
func mobileLogoutAuthRequired(svc *service.Container) gin.HandlerFunc {
return func(c *gin.Context) {
raw := middleware.ExtractToken(c)
if raw == "" {
writeMobileError(c, http.StatusUnauthorized, mobileCodeInvalidCredentials,
"access token required", false, 0)
return
}
claims, err := svc.Token.ValidateAccessToken(raw)
if err != nil {
if errors.Is(err, jwt.ErrTokenExpired) {
writeMobileError(c, http.StatusUnauthorized, mobileCodeTokenExpired,
"access token expired", false, 0)
return
}
writeMobileError(c, http.StatusUnauthorized, mobileCodeInvalidCredentials,
"invalid access token", false, 0)
return
}
sessionID := strings.TrimSpace(claims.Sid)
if sessionID == "" {
writeMobileError(c, http.StatusUnauthorized, mobileCodeInvalidCredentials,
"auth session required; sign in again", false, 0)
return
}
c.Set(middleware.CtxUserID, claims.UserID)
c.Set(middleware.CtxAuthSessionID, sessionID)
c.Next()
}
}
func mobileLoginHandler(svc *service.Container, log *zap.Logger) gin.HandlerFunc {
return func(c *gin.Context) {
var req mobileLoginRequest
if err := c.ShouldBindJSON(&req); err != nil {
writeMobileError(c, http.StatusBadRequest, mobileCodeInvalidArgument,
"username, password and device_id are required", false, 0)
return
}
req.Username = strings.TrimSpace(req.Username)
req.DeviceID = strings.TrimSpace(req.DeviceID)
if req.Username == "" || req.DeviceID == "" || len(req.DeviceID) > 128 {
writeMobileError(c, http.StatusBadRequest, mobileCodeInvalidArgument,
"invalid username or device_id", false, 0)
return
}
ctx := c.Request.Context()
user, err := svc.Auth.Authenticate(ctx, req.Username, req.Password)
if err != nil {
writeMobileAuthError(c, log, err)
return
}
deviceName := strings.TrimSpace(req.DeviceName)
clientName := strings.TrimSpace(req.ClientName)
if clientName == "" {
clientName = "MeBox Android"
}
session, err := svc.AuthSessions.Create(ctx, service.CreateAuthSessionInput{
UserID: user.ID,
DeviceID: req.DeviceID,
DeviceName: deviceName,
ClientName: clientName,
ClientVersion: req.ClientVersion,
})
if err != nil {
if isTransientServiceError(err) {
writeMobileError(c, http.StatusServiceUnavailable, mobileCodeServiceUnavailable,
"cannot create auth session right now", true, 2)
return
}
writeMobileError(c, http.StatusBadRequest, mobileCodeInvalidArgument,
"invalid device information", false, 0)
return
}
tokens, err := svc.Token.IssuePairForSession(ctx, user.ID, user.Role, user.Tier, session.ID)
if err != nil {
// 令牌签发失败时回收会话,避免留下永远无法使用的会话记录。
_ = svc.AuthSessions.Revoke(ctx, session.ID)
writeMobileAuthError(c, log, err)
return
}
if svc.Device != nil {
svc.Device.RecordLogin(ctx, user.ID, session.DeviceID, deviceName, clientName, c.ClientIP())
}
if svc.Audit != nil {
svc.Audit.RecordBestEffort(user.ID, "auth.mobile.login", user.Username, c.ClientIP(), "")
}
c.JSON(http.StatusOK, gin.H{
"auth_session_id": session.ID,
"user": toMobileUserPayload(user),
"tokens": tokens,
})
}
}
func mobileRefreshHandler(svc *service.Container, log *zap.Logger) gin.HandlerFunc {
return func(c *gin.Context) {
var req mobileRefreshRequest
if err := c.ShouldBindJSON(&req); err != nil {
writeMobileError(c, http.StatusBadRequest, mobileCodeInvalidArgument,
"refresh_token required", false, 0)
return
}
ctx := c.Request.Context()
rt, err := svc.Repo.RefreshToken.FindByHash(ctx, repository.HashToken(req.RefreshToken))
if err != nil {
if isTransientServiceError(err) {
writeMobileError(c, http.StatusServiceUnavailable, mobileCodeServiceUnavailable,
"token store temporarily unavailable", true, 2)
return
}
writeMobileAuthError(c, log, err)
return
}
// 只有 v1 登录签发的刷新令牌才带会话;旧网页令牌必须重新登录。
// 注意这里不能在 rt.Revoked 时提前返回:轮换宽限期内的幂等复用
// 由 TokenService 判定。
if rt == nil || strings.TrimSpace(rt.AuthSessionID) == "" {
writeMobileError(c, http.StatusUnauthorized, mobileCodeInvalidCredentials,
"refresh token is not bound to a device session; sign in again", false, 0)
return
}
if _, err := svc.AuthSessions.Validate(ctx, rt.AuthSessionID, rt.UserID); err != nil {
if isTransientServiceError(err) {
writeMobileError(c, http.StatusServiceUnavailable, mobileCodeServiceUnavailable,
"auth session check temporarily unavailable", true, 2)
return
}
writeMobileError(c, http.StatusUnauthorized, mobileCodeSessionRevoked,
"auth session revoked or expired", false, 0)
return
}
tokens, err := svc.Auth.RefreshTokens(ctx, req.RefreshToken)
if err != nil {
writeMobileAuthError(c, log, err)
return
}
user, err := svc.Repo.User.FindByID(ctx, rt.UserID)
if err != nil {
writeMobileAuthError(c, log, err)
return
}
if user == nil {
writeMobileError(c, http.StatusUnauthorized, mobileCodeInvalidCredentials,
"user not found", false, 0)
return
}
c.JSON(http.StatusOK, gin.H{
"auth_session_id": rt.AuthSessionID,
"user": toMobileUserPayload(user),
"tokens": tokens,
})
}
}
func mobileSessionHandler(svc *service.Container) gin.HandlerFunc {
return func(c *gin.Context) {
ctx := c.Request.Context()
userID := c.GetString(middleware.CtxUserID)
user, err := svc.Repo.User.FindByID(ctx, userID)
if err != nil {
writeMobileAuthError(c, svc.Log, err)
return
}
if user == nil {
writeMobileError(c, http.StatusUnauthorized, mobileCodeInvalidCredentials,
"user not found", false, 0)
return
}
session, _ := c.Get(mobileCtxAuthSession)
sessionModel, _ := session.(*model.AuthSession)
c.JSON(http.StatusOK, gin.H{
"auth_session_id": c.GetString(middleware.CtxAuthSessionID),
"user": toMobileUserPayload(user),
"session": toMobileSessionPayload(sessionModel),
})
}
}
func mobileLogoutHandler(svc *service.Container) gin.HandlerFunc {
return func(c *gin.Context) {
sessionID := c.GetString(middleware.CtxAuthSessionID)
if err := svc.AuthSessions.Revoke(c.Request.Context(), sessionID); err != nil {
if isTransientServiceError(err) {
writeMobileError(c, http.StatusServiceUnavailable, mobileCodeServiceUnavailable,
"cannot revoke session right now", true, 2)
return
}
writeMobileError(c, http.StatusInternalServerError, mobileCodeServiceUnavailable,
"logout failed", false, 0)
return
}
c.JSON(http.StatusOK, gin.H{"status": "ok"})
}
}
// writeMobileAuthError 把 service 层错误映射为稳定错误码。
// 临时性存储/基础设施错误必须返回可重试的 503,不能伪装成凭证失效。
func writeMobileAuthError(c *gin.Context, log *zap.Logger, err error) {
switch {
case errors.Is(err, service.ErrInvalidCredentials), errors.Is(err, service.ErrInvalidRefreshToken):
writeMobileError(c, http.StatusUnauthorized, mobileCodeInvalidCredentials,
"invalid username, password or refresh token", false, 0)
case errors.Is(err, service.ErrTokenExpired):
writeMobileError(c, http.StatusUnauthorized, mobileCodeTokenExpired,
"refresh token expired", false, 0)
case errors.Is(err, service.ErrTokenRevoked),
errors.Is(err, service.ErrAuthSessionRevoked),
errors.Is(err, service.ErrAuthSessionExpired),
errors.Is(err, service.ErrAuthSessionRequired):
writeMobileError(c, http.StatusUnauthorized, mobileCodeSessionRevoked,
"auth session revoked or expired", false, 0)
case errors.Is(err, service.ErrUserInactive):
writeMobileError(c, http.StatusForbidden, mobileCodeAccountDisabled,
"account is disabled", false, 0)
case errors.Is(err, service.ErrUserExpired):
writeMobileError(c, http.StatusForbidden, mobileCodeAccountExpired,
"account has expired", false, 0)
case isTransientServiceError(err):
writeMobileError(c, http.StatusServiceUnavailable, mobileCodeServiceUnavailable,
"service temporarily unavailable, please retry", true, 2)
default:
if log != nil {
log.Warn("mobile auth request failed", zap.Error(err))
}
writeMobileError(c, http.StatusServiceUnavailable, mobileCodeServiceUnavailable,
"service temporarily unavailable, please retry", true, 2)
}
}
func isTransientServiceError(err error) bool {
if err == nil {
return false
}
if service.IsTransientDatabaseLock(err) {
return true
}
if errors.Is(err, context.DeadlineExceeded) || errors.Is(err, context.Canceled) {
return true
}
return false
}