/// <summary>
/// 消息发送
/// </summary>
/// <param name="resp">响应对象</param>
public void Send(Response resp)
{
if (resp == null)//响应为空
{
return;
}
Session client = ((TcpServiceRequest)resp.req).client;
if (client == null)
{
return;
}
LogHelper.Add(client.Id + "->" + resp.id + "->Send", resp.para, LogType.TcpService);
//获取IP白名单加密方式
ClientWhite white = config.ClientWhiteList.Find(f => f.ClientIp.Split(',').Contains(client.ConnIp));
if (white == null)
{
LogHelper.Add("【ERROR】" + client.ConnIp, "未在白名单找到报文", LogType.Error);
return;
}
if (white.encryptType != EncryptType.Normal)
{
LogHelper.Add(client.Id + "->" + resp.id + "->加密获取密文", resp.para, LogType.TcpService);
}
resp.para = Encryption(resp.para, white);
//返回响应
svr.Send(client, resp.para);
}
/// <summary>
/// 加密报文
/// </summary>
/// <param name="packets">明文</param>
/// <param name="white">白名单设置</param>
/// <returns></returns>
public string Encryption(string packets, ClientWhite white)
{
if (white.encryptType == EncryptType.DES3)
{
#region DES3层加密
string secretKey = Helper.Encryption.getKey(white.Secretkey); //获取秘钥
//生成签名
string sign = Helper.Encryption.EncryptMD5(packets, new EncodHelper(config.Encoding).ToEncoding());
//获取报文密文
string ciphertext = Helper.Encryption.Encrypt3ECB(packets, secretKey, new EncodHelper(config.Encoding).ToEncoding());
string length = ciphertext.Length.ToString();
for (int i = length.Length; i < 6; i++)
{
length = "0" + length;
}
packets = length + ciphertext + sign;
return(packets);
#endregion
}
else if (white.encryptType == EncryptType.MD5)
{
#region MD5签名验证
string secretKey = Helper.Encryption.getKey(white.Secretkey); //获取秘钥
string sign = Helper.Encryption.EncryptMD5(packets + secretKey, new EncodHelper(config.Encoding).ToEncoding()); //获取报文签名
return(packets + sign);
#endregion
}
else
{
return(packets);
}
}
/// <summary>
/// 解密报文
/// </summary>
/// <param name="packets">密文</param>
/// <param name="white">白名单设置</param>
/// <returns></returns>
public string Decryption(string packets, ClientWhite white)
{
if (white.encryptType == EncryptType.DES3)
{
#region DES3层加密
string secretKey = Helper.Encryption.getKey(white.Secretkey);
Encoding e = new EncodHelper(config.Encoding).ToEncoding();
//获取签名长度
int length = Convert.ToInt32(packets.Substring(0, 6));
//获取签名
string sgin = packets.Substring(length + 6, 32);
//获取加密的报文
string ciphertext = packets.Substring(6, length);
//进行解密报文
string data = Helper.Encryption.Decrypt3ECB(ciphertext, secretKey, e);
//验证报文是否正确
ciphertext = Helper.Encryption.EncryptMD5(data, e);
if (!ciphertext.Equals(sgin))
{
throw new Exception("报文签名无效");
}
return(data);
#endregion
}
else if (white.encryptType == EncryptType.MD5)
{
#region MD5签名验证
string secretKey = Helper.Encryption.getKey(white.Secretkey);
//截取报文的Sign
string reqSign = packets.Substring(packets.Length - 32, 32);
//获取报文信息
string packet = packets.Substring(0, packets.Length - 32);
//生成报文签名
string sign = Helper.Encryption.EncryptMD5(packets + secretKey, new EncodHelper(config.Encoding).ToEncoding());//获取报文签名
if (sign == reqSign)
{
throw new Exception("报文签名无效");
}
return(packet);
#endregion
}
else
{
return(packets);
}
}
/// <summary>
/// 数据接收事件
/// </summary>
/// <param name="msg">请求报文</param>
/// <param name="client">会话上下文</param>
void ClientRecvData(string msg, Session client)
{
try
{
//生成请求唯一标示
long id = Utils.GetReqId();
#region 获取请求对象
LogHelper.Add(client.Id + "->" + id + "->ClientRecvData", msg, LogType.TcpService);
//获取IP白名单
ClientWhite white = config.ClientWhiteList.Find(f => f.ClientIp.Split(',').Contains(client.ConnIp));
if (white == null)
{
LogHelper.Add("【ERROR】" + id, "未在白名单找到报文", LogType.Error);
return;
}
try
{
msg = Decryption(msg, white); //报文解密
}
catch (Exception ex)
{
LogHelper.Add("【ERROR】" + id + "->报文解密失败", ex.Message, LogType.Error);
return;
}
if (white.encryptType != EncryptType.Normal)
{
LogHelper.Add(client.Id + "->" + id + "->解密获取明文", msg, LogType.TcpService);
}
TcpServiceRequest req = null;
try
{
req = JsonConvert.DeserializeObject <TcpServiceRequest>(msg);
req.id = id;
req.channel = RequestChannel.TcpService;
req.client = client;
}
catch (Exception ex)
{
LogHelper.Add("【ERROR】" + id + "->启动处理,报文解析错误", ex.Message, LogType.Error);
return;
}
if (req == null)
{
LogHelper.Add("【ERROR】" + id + "->启动处理,报文解析错误", msg, LogType.Error);
return;
}
//判断该客户端是否允许访问该功能
if (!white.FuncList.Split(',').Contains("ALL") && !white.FuncList.Split(',').Contains(req.code))
{
LogHelper.Add(id.ToString(), "该服务器不支持此功能", LogType.Error);
return;
}
#endregion
//发送给处理区
if (base.Handle_Event == null)
{
return;
}
Response resp = base.Handle_Event(req);
if (resp == null)
{
LogHelper.Add("【ERROR】" + id, "响应为空", LogType.Error);
return;
}
//发送响应报文00
Send(resp);
}
catch (Exception ex)
{
svr.Send(client, "0");
LogHelper.Add("【ERROR】" + client.Id + "->请求,内部错误", "msg:" + msg + "；" + ex.Message, LogType.Error);
}
}
