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crawlab/backend/services/user.go

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package services
import (
"crawlab/constants"
"crawlab/model"
"crawlab/utils"
"errors"
"github.com/dgrijalva/jwt-go"
"github.com/gin-gonic/gin"
"github.com/globalsign/mgo/bson"
"github.com/spf13/viper"
"strings"
"time"
)
func InitUserService() error {
_ = CreateNewUser("admin", "admin", constants.RoleAdmin, "", bson.ObjectIdHex(constants.ObjectIdNull))
return nil
}
func MakeToken(user *model.User) (tokenStr string, err error) {
token := jwt.NewWithClaims(jwt.SigningMethodHS256, jwt.MapClaims{
"id": user.Id,
"username": user.Username,
"nbf": time.Now().Unix(),
})
return token.SignedString([]byte(viper.GetString("server.secret")))
}
//func GetToken(username string) (tokenStr string, err error) {
// user, err := model.GetUserByUsername(username)
// if err != nil {
// log.Errorf(err.Error())
// debug.PrintStack()
// return
// }
//
// token := jwt.NewWithClaims(jwt.SigningMethodHS256, jwt.MapClaims{
// "id": user.Id,
// "username": user.Username,
// "nbf": time.Now().Unix(),
// })
//
// tokenStr, err = token.SignedString([]byte(viper.GetString("server.secret")))
// if err != nil {
// return
// }
// return
//}
func SecretFunc() jwt.Keyfunc {
return func(token *jwt.Token) (interface{}, error) {
return []byte(viper.GetString("server.secret")), nil
}
}
func CheckToken(tokenStr string) (user model.User, err error) {
token, err := jwt.Parse(tokenStr, SecretFunc())
if err != nil {
return
}
claim, ok := token.Claims.(jwt.MapClaims)
if !ok {
err = errors.New("cannot convert claim to mapclaim")
return
}
//验证token如果token被修改过则为false
if !token.Valid {
err = errors.New("token is invalid")
return
}
id := bson.ObjectIdHex(claim["id"].(string))
username := claim["username"].(string)
user, err = model.GetUser(id)
if err != nil {
err = errors.New("cannot get user")
return
}
if username != user.Username {
err = errors.New("username does not match")
return
}
return
}
func CreateNewUser(username string, password string, role string, email string, uid bson.ObjectId) error {
user := model.User{
Username: strings.ToLower(username),
Password: utils.EncryptPassword(password),
Role: role,
Email: email,
UserId: uid,
Setting: model.UserSetting{
NotificationTrigger: constants.NotificationTriggerNever,
EnabledNotifications: []string{
constants.NotificationTypeMail,
constants.NotificationTypeDingTalk,
constants.NotificationTypeWechat,
},
},
}
if err := user.Add(); err != nil {
return err
}
return nil
}
func GetCurrentUser(c *gin.Context) *model.User {
data, _ := c.Get(constants.ContextUser)
if data == nil {
return &model.User{}
}
return data.(*model.User)
}
func GetCurrentUserId(c *gin.Context) bson.ObjectId {
return GetCurrentUser(c).Id
}
func GetAdminUser() (user *model.User, err error) {
u, err := model.GetUserByUsername("admin")
if err != nil {
return user, err
}
return &u, nil
}