mysql2/lib/commands/change_user.js

fast mysql driver. Implements core protocol, prepared statements, ssl and compression in native JS

var util = require('util');

var Command = require('./command.js');
var Packets = require('../packets/index.js');
var ClientConstants = require('../constants/client.js');
var ClientHandshake = require('./client_handshake.js');

function ChangeUser (options, callback)
{
  this.onResult = callback;
  this.user = options.user;
  this.password = options.password;
  this.database = options.database;
  this.passwordSha1 = options.passwordSha1;
  this.charsetNumber = options.charsetNumber;
  this.currentConfig = options.currentConfig;
  Command.call(this);
}
util.inherits(ChangeUser, Command);

ChangeUser.prototype.handshakeResult = ClientHandshake.prototype.handshakeResult;
ChangeUser.prototype.calculateNativePasswordAuthToken = ClientHandshake.prototype.calculateNativePasswordAuthToken;

ChangeUser.prototype.start = function (packet, connection) {
  var packet = new Packets.ChangeUser({
    flags           : connection.config.clientFlags,
    user            : this.user,
    database        : this.database,
    charsetNumber   : this.charsetNumber,
    password        : this.password,
    passwordSha1    : this.passwordSha1,
    authPluginData1 : connection._handshakePacket.authPluginData1,
    authPluginData2 : connection._handshakePacket.authPluginData2
  });
  this.currentConfig.user = this.user;
  this.currentConfig.password = this.password;
  this.currentConfig.database = this.database;
  this.currentConfig.charsetNumber = this.charsetNumber;
  // reset prepared statements cache as all statements become invalid after changeUser
  connection._statements = {};
  connection.writePacket(packet.toPacket());
  return ChangeUser.prototype.handshakeResult;
};

module.exports = ChangeUser;