使用 Loopback 实现更改密码

Question

我正在尝试使用 Loopback 的内置方法实现更改密码功能，它工作正常，但它不会使用 hash 更新密码，而只是在数据库中保存纯文本。我在这个项目中使用 loopback-component-passport npm 包。我搜索了很多网站，但找不到实现此功能的正确方法。有谁知道如何做到这一点？

//Change user's pasword
app.post('/change-password', function(req, res, next) {
  var User = app.models.user;
  if (!req.accessToken) return res.sendStatus(401);
  //verify passwords match
  if (!req.body.password || !req.body.confirmation ||
    req.body.password !== req.body.confirmation) {
    return res.sendStatus(400, new Error('Passwords do not match'));
  }

  User.findById(req.accessToken.userId, function(err, user) {
    if (err) return res.sendStatus(404);
    user.hasPassword(req.body.oldPassword, function(err, isMatch) {
      if (!isMatch) {
        return res.sendStatus(401);
      } else {
        user.updateAttribute('password', req.body.password, function(err, user) {
          if (err) return res.sendStatus(404);
          console.log('> password change request processed successfully');
          res.status(200).json({msg: 'password change request processed successfully'});
        });
      }
    });
  });
});

Answer 1

使用在源代码中看到的内置User.hashPassword

//Hash the plain password
user.updateAttribute('password', User.hashPassword(req.body.password), function(err, user) {
    ...
});

Answer 2

这实际上是 loopback-datasource-juggler 2.45.0 引入的错误。默认情况下密码应该被散列。

https://github.com/strongloop/loopback-datasource-juggler/issues/844

https://github.com/strongloop/loopback/issues/2029

所以当心如果你使用 user.hashpassword 它可能在未来的版本中无法工作，因为如果没有正确完成它可能会散列一个已经散列的密码，但是应该已经检查了长度加上检查 $2$ 或哈希值的起始位。

编辑：安装 loopback-datasource-juggler 2.45.1，它应该已修复。

Answer 3

这是我的 "full" 解决方案，用于在 LoopBack / StrongLoop - IBM 项目中实现特定的 updatePassword 远程方法。请确认 loopback-datasource-juggler 包的版本高于或等于 2.45.1 (npm list loopback-datasource-juggler)。我的用户模型称为 MyUserModel 并继承自内置模型 User:

"my-user-model.js"

module.exports = function (MyUserModel) {

...

MyUserModel.updatePassword = function (ctx, emailVerify, oldPassword, newPassword, cb) {
  var newErrMsg, newErr;
  try {
    this.findOne({where: {id: ctx.req.accessToken.userId, email: emailVerify}}, function (err, user) {
      if (err) {
        cb(err);
      } else if (!user) {
        newErrMsg = "No match between provided current logged user and email";
        newErr = new Error(newErrMsg);
        newErr.statusCode = 401;
        newErr.code = 'LOGIN_FAILED_EMAIL';
        cb(newErr);
      } else {
        user.hasPassword(oldPassword, function (err, isMatch) {
          if (isMatch) {

            // TODO ...further verifications should be done here (e.g. non-empty new password, complex enough password etc.)...

            user.updateAttributes({'password': newPassword}, function (err, instance) {
              if (err) {
                cb(err);
              } else {
                cb(null, true);
              }
            });
          } else {
            newErrMsg = 'User specified wrong current password !';
            newErr = new Error(newErrMsg);
            newErr.statusCode = 401;
            newErr.code = 'LOGIN_FAILED_PWD';
            return cb(newErr);
          }
        });
      }
    });
  } catch (err) {
    logger.error(err);
    cb(err);
  }
};

MyUserModel.remoteMethod(
  'updatePassword',
  {
    description: "Allows a logged user to change his/her password.",
    http: {verb: 'put'},
    accepts: [
      {arg: 'ctx', type: 'object', http: {source: 'context'}},
      {arg: 'emailVerify', type: 'string', required: true, description: "The user email, just for verification"},
      {arg: 'oldPassword', type: 'string', required: true, description: "The user old password"},
      {arg: 'newPassword', type: 'string', required: true, description: "The user NEW password"}
    ],
    returns: {arg: 'passwordChange', type: 'boolean'}
  }
);

...
};

"my-user-model.json"

{
   "name": "MyUserModel",
   "base": "User",

   ...

   "acls": [
     ...
     {
       "comment":"allow authenticated users to change their password",
       "accessType": "EXECUTE",
       "property":"updatePassword",
       "principalType": "ROLE",
       "principalId": "$authenticated",
       "permission": "ALLOW"
     }
   ...
   ],
   ...
}

NB: The same functionality can be performed using a PUT request on MyUserModel and just specifying { "password":"...newpassword..."} in the body. But it probably is more convenient to have a specific remote method than this trick in order to enforce security policy on the new password.

使用 Loopback 实现更改密码

Implement change password with Loopback

javascript

node.js

loopbackjs

strongloop