private bool isSuccess(KeywordMessageType msgType, string passpart, string mac, out string errorInfo)
{
errorInfo = "";
if (msgType == KeywordMessageType.User)
{
if (string.Compare(passpart, Service.UserLoginPassword) == 0)
{
Service.SetMac(mac);
return(true);
}
else
{
errorInfo = "密码输入错误";
return(false);
}
}
else
{
string val = "";
bool b = Service.dic.TryGetValue(mac, out val);
if (b && string.Compare(val, passpart) == 0)
{
return(true);
}
errorInfo = "用户验证错误";
return(false);
}
}
/// <summary>
/// 解析消息包
/// </summary>
/// <param name="stream"></param>
private void AnalyzeMessageBag(NetworkStream stream, MessageBag bag)
{
KeywordMessageType type = (KeywordMessageType)bag.Head.Type;
switch (type)
{
case KeywordMessageType.None:
break;
case KeywordMessageType.User:
{
byte[] body = bag.BytesBody;
UserCheck(stream, body, KeywordMessageType.User);
break;
}
case KeywordMessageType.Upload:
{
int state = bag.Head.State;
if (state == 1)
{
//首次上传校验信息
byte[] body = bag.BytesBody;
string val = UserCheck(stream, body, KeywordMessageType.Upload);
//引处校验成功后，将等着接收更新字符串
if (!string.IsNullOrEmpty(val) && val == "sameversion")
{
MessageBag recBag = ReceiveMessageBag(stream);
AnalyzeMessageBag(stream, recBag);
}
}
else
{
//二次传入更新信息
byte[] body = bag.BytesBody;
string updateStr = Encoding.UTF8.GetString(body);
//更新本地词库
UpdateServerDict(updateStr);
//更改服务器版本号，并保存新增文件
string versionR = GetIncVersion();
Service.DictVersion = versionR;
string fileName = versionR; //不加扩展名
SaveFile(fileName, updateStr);
//返回"版本号与更新字符串"
MessageHead head = new MessageHead((int)KeywordMessageType.Upload, 0, 2);
string updateCmd = GetUpdateCmd();
byte[] updateBody = GetBodyBytes(Service.DictVersion, updateCmd);
MessageBag returnBag = new MessageBag(head, updateBody);
SendMessageBag(stream, returnBag);
}
break;
}
case KeywordMessageType.Update:
{
byte[] body = bag.BytesBody;
UserCheck(stream, body, KeywordMessageType.Update);
break;
}
default:
break;
}
}
/// <summary>
/// 用户验证
/// </summary>
/// <param name="body"></param>
private string UserCheck(NetworkStream stream, byte[] body, KeywordMessageType msgType)
{
string resultVal = "";
string all = Encoding.UTF8.GetString(body);
string[] arrstr = all.Split(new[] { '&' }, StringSplitOptions.None);
passpart = arrstr[0];
version = arrstr[1];
mac = arrstr[2];
int cmd = 0;
//验证密码是否正确 //成功，为真；失败为假
string errorInfo = "";
bool value = isSuccess(msgType, passpart, mac, out errorInfo);
if (!value)
{
MessageHead head = new MessageHead((int)msgType, 0, 0);
byte[] info = Encoding.UTF8.GetBytes(errorInfo);
MessageBag bag = new MessageBag(head, info);
SendMessageBag(stream, bag);
resultVal = "";
}
else
{
string newId = Service.GetSessionId();
Service.SetSessionId(mac, newId);
//验证版本号
if (string.Compare(version, Service.DictVersion) == 0)
{
if (msgType == KeywordMessageType.Upload)
{
cmd = 1;
}
MessageHead head = new MessageHead((int)msgType, cmd, 1);
byte[] idBody = Encoding.UTF8.GetBytes(newId);
MessageBag bag = new MessageBag(head, idBody);
SendMessageBag(stream, bag);
resultVal = "sameversion";
}
else
{
if (msgType == KeywordMessageType.Upload)
{
cmd = 2;
}
MessageHead head = new MessageHead((int)msgType, cmd, 2);
string updateCmd = GetUpdateCmd();
byte[] updateBody = GetBodyBytes(newId, Service.DictVersion, updateCmd);
MessageBag bag = new MessageBag(head, updateBody);
SendMessageBag(stream, bag);
resultVal = "";
}
}
return(resultVal);
}
/// <summary>
/// 解析服务器返回的用户验证后的消息包
/// </summary>
/// <param name="bag"></param>
/// <returns></returns>
public string AnalyzeResponeMessage(MessageBag bag)
{
int state = 0;
KeywordMessageType type = (KeywordMessageType)bag.Head.Type;
if (type == KeywordMessageType.User || type == KeywordMessageType.Update)
{
state = bag.Head.State;
switch (state)
{
case 0: //失败
byte[] bytes = bag.BytesBody;
return(Encoding.UTF8.GetString(bytes));
case 1: //成功，版本一样
byte[] idBytes = bag.BytesBody;
Service.SessionId = Encoding.UTF8.GetString(idBytes);
return("true");
case 2: //成功，版本不一样
AnalyzeBodyBytes(bag);
return("true");
default:
break;
}
}
if (type == KeywordMessageType.Upload)
{
//1为验证; 2为更新
state = bag.Head.State;
if (state == 1)
{
//0,表失败; 1表成功，并版本号一样; 2表成功，版本号不一样
int cmd = bag.Head.Cmd;
switch (cmd)
{
case 0:
byte[] bytes = bag.BytesBody;
return(Encoding.UTF8.GetString(bytes));
case 1: //可以上传更新
byte[] idBytes = bag.BytesBody;
Service.SessionId = Encoding.UTF8.GetString(idBytes);
return("versionSameOfSuccess");
case 2: //更新本地版本，重新显示
AnalyzeBodyBytes(bag);
return("versionDifferentOfSuccess");
default:
break;
}
}
else //状态为2 ,表示上传更新
{
byte[] Bytes = bag.BytesBody;
//解析版本号
byte[] versionByte = new byte[versionLength];
Array.Copy(Bytes, 0, versionByte, 0, versionLength);
Service.DictVersion = Encoding.UTF8.GetString(versionByte);
//更新本地词库的字符串
int leg = versionLength + sessionIdLength;
int length = Bytes.Length - versionLength;
byte[] bodyBytes = new byte[length];
Array.Copy(Bytes, versionLength, bodyBytes, 0, length);
string body = Encoding.UTF8.GetString(bodyBytes);
Service.UpdateLocalDict(body);
return("true"); //更新本地词库成功
}
}
return("");
}
