Initial work on the server

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

@@ -0,0 +1,65 @@
+var Sequence = require('./Sequence');
+var Util     = require('util');
+var Packets  = require('../packets');
+var Auth     = require('../Auth');
+
+module.exports = Handshake;
+Util.inherits(Handshake, Sequence);
+function Handshake(config, callback) {
+  Sequence.call(this, callback);
+
+  this._config                        = config;
+  this._handshakeInitializationPacket = null;
+}
+
+Handshake.prototype.determinePacket = function(firstByte) {
+  if (firstByte === 0xff) {
+    return Packets.ErrorPacket;
+  }
+
+  if (!this._handshakeInitializationPacket) {
+    return Packets.HandshakeInitializationPacket;
+  }
+
+  if (firstByte === 0xfe) {
+    return Packets.UseOldPasswordPacket;
+  }
+};
+
+Handshake.prototype['HandshakeInitializationPacket'] = function(packet) {
+  this._handshakeInitializationPacket = packet;
+
+  this.emit('packet', new Packets.ClientAuthenticationPacket({
+    clientFlags   : this._config.clientFlags,
+    maxPacketSize : this._config.maxPacketSize,
+    charsetNumber : this._config.charsetNumber,
+    user          : this._config.user,
+    scrambleBuff  : Auth.token(this._config.password, packet.scrambleBuff()),
+    database      : this._config.database,
+  }));
+};
+
+Handshake.prototype['UseOldPasswordPacket'] = function(packet) {
+  if (!this._config.insecureAuth) {
+    var err = new Error(
+      'MySQL server is requesting the old and insecure pre-4.1 auth mechanism.' +
+      'Upgrade the user password or use the {insecureAuth: true} option.'
+    );
+
+    err.code = 'HANDSHAKE_INSECURE_AUTH';
+    err.fatal = true;
+
+    this.end(err);
+    return;
+  }
+
+  this.emit('packet', new Packets.OldPasswordPacket({
+    scrambleBuff : Auth.scramble323(this._handshakeInitializationPacket.scrambleBuff(), this._config.password),
+  }));
+};
+
+Handshake.prototype['ErrorPacket'] = function(packet) {
+  var err = this._packetToError(packet, true);
+  err.fatal = true;
+  this.end(err);
+};