140 lines
2.7 KiB
C++
140 lines
2.7 KiB
C++
#include "Time.h"
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#include "HelloMessage.h"
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// 请求：2版本 + S类型 + S名称 + 8本地时间 + 6本地IP端口 + S支持加密算法列表
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// 响应：2版本 + S类型 + S名称 + 8本地时间 + 6对方IP端口 + 1加密算法 + N密钥
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// 错误：0xFE + 1协议 + S服务器 + 2端口
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// 初始化消息，各字段为0
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HelloMessage::HelloMessage() : Ciphers(1), Key(0)
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{
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Version = Sys.Version;
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ushort code = _REV16(Sys.Code);
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ByteArray bs(&code, 2);
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Type = bs.ToHex('\0');
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Name = Sys.Company;
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LocalTime = Time.Now().TotalMicroseconds();
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Ciphers[0] = 1;
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Protocol = 2;
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Port = 0;
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}
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HelloMessage::HelloMessage(const HelloMessage& msg) : MessageBase(msg), Ciphers(1), Key(0)
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{
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Version = msg.Version;
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Type = msg.Type;
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Name = msg.Name;
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LocalTime = msg.LocalTime;
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EndPoint = msg.EndPoint;
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Ciphers = msg.Ciphers;
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Key = msg.Key;
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Protocol = msg.Protocol;
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Port = msg.Port;
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Server = msg.Server;
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}
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// 从数据流中读取消息
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bool HelloMessage::Read(Stream& ms)
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{
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if(Reply && Error)
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{
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byte err = ms.ReadByte();
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if(err == 0xFE || err == 0xFD)
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{
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Protocol = ms.ReadByte();
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Server = ms.ReadArray();
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Port = ms.ReadUInt16();
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}
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else
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{
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debug_printf("无法识别错误码 0x%02X \r\n", err);
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return false;
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}
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}
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Version = ms.ReadUInt16();
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Type = ms.ReadString();
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Name = ms.ReadString();
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LocalTime = ms.ReadUInt64();
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EndPoint = ms.ReadArray(6);
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if(!Reply)
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{
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Ciphers = ms.ReadArray();
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}
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else
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{
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Ciphers[0] = ms.ReadByte();
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// 读取数组前，先设置为0，避免实际长度小于数组长度
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Key.SetLength(0);
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Key = ms.ReadArray();
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}
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return false;
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}
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// 把消息写入数据流中
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void HelloMessage::Write(Stream& ms) const
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{
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ms.Write(Version);
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ms.WriteArray(Type);
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ms.WriteArray(Name);
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ms.Write(LocalTime);
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ms.Write(EndPoint.ToArray());
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if(!Reply)
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{
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ms.WriteArray(Ciphers);
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}
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else
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{
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ms.Write(Ciphers[0]);
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ms.WriteArray(Key);
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}
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}
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#if DEBUG
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// 显示消息内容
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String& HelloMessage::ToStr(String& str) const
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{
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str += "握手";
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if(Reply) str += "#";
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if(Reply && Error)
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{
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if(Protocol == 1)
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str = str + " TCP ";
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else if(Protocol == 2)
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str = str + " UDP ";
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str += Server;
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str = str + " " + Port;
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return str;
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}
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str.Append(" Ver=").Append(Version, 16, 4);
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str = str + " " + Type + " " + Name + " ";
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DateTime dt;
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dt.ParseUs(LocalTime);
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str += dt.ToString();
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str = str + " " + EndPoint;
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str = str + " Ciphers[" + Ciphers.Length() + "]=";
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for(int i=0; i<Ciphers.Length(); i++)
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{
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str.Append(Ciphers[i]).Append(' ');
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}
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if(Reply) str += " Key=" + Key;
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return str;
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}
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#endif
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