Initial commit

node_modules/mysql/lib/protocol/sequences/ChangeUser.js

@@ -0,0 +1,67 @@
+var Sequence = require('./Sequence');
+var Util     = require('util');
+var Packets  = require('../packets');
+var Auth     = require('../Auth');
+
+module.exports = ChangeUser;
+Util.inherits(ChangeUser, Sequence);
+function ChangeUser(options, callback) {
+  Sequence.call(this, options, callback);
+
+  this._user          = options.user;
+  this._password      = options.password;
+  this._database      = options.database;
+  this._charsetNumber = options.charsetNumber;
+  this._currentConfig = options.currentConfig;
+}
+
+ChangeUser.prototype.determinePacket = function determinePacket(firstByte) {
+  switch (firstByte) {
+    case 0xfe: return Packets.AuthSwitchRequestPacket;
+    case 0xff: return Packets.ErrorPacket;
+    default: return undefined;
+  }
+};
+
+ChangeUser.prototype.start = function(handshakeInitializationPacket) {
+  var scrambleBuff = handshakeInitializationPacket.scrambleBuff();
+  scrambleBuff     = Auth.token(this._password, scrambleBuff);
+
+  var packet = new Packets.ComChangeUserPacket({
+    user          : this._user,
+    scrambleBuff  : scrambleBuff,
+    database      : this._database,
+    charsetNumber : this._charsetNumber
+  });
+
+  this._currentConfig.user          = this._user;
+  this._currentConfig.password      = this._password;
+  this._currentConfig.database      = this._database;
+  this._currentConfig.charsetNumber = this._charsetNumber;
+
+  this.emit('packet', packet);
+};
+
+ChangeUser.prototype['AuthSwitchRequestPacket'] = function (packet) {
+  var name = packet.authMethodName;
+  var data = Auth.auth(name, packet.authMethodData, {
+    password: this._password
+  });
+
+  if (data !== undefined) {
+    this.emit('packet', new Packets.AuthSwitchResponsePacket({
+      data: data
+    }));
+  } else {
+    var err   = new Error('MySQL is requesting the ' + name + ' authentication method, which is not supported.');
+    err.code  = 'UNSUPPORTED_AUTH_METHOD';
+    err.fatal = true;
+    this.end(err);
+  }
+};
+
+ChangeUser.prototype['ErrorPacket'] = function(packet) {
+  var err = this._packetToError(packet);
+  err.fatal = true;
+  this.end(err);
+};