/// <summary>
/// 解析并构建请求数据
/// </summary>
/// <returns></returns>
public virtual bool Build()
{
NameValueCollection nvCollection = this.Context.Request.Headers;
ReqChannel = nvCollection["CN"] ?? string.Empty;
ReqContentType = (ContentType)(nvCollection["CT"] ?? "0").Parse <int>();
ReqBodyLength = (nvCollection["BL"] ?? "0").Parse <int>();
ReqHeaderSig = nvCollection["HS"] ?? string.Empty;
Msid = nvCollection["x-up-calling-line-id"] ?? string.Empty; //通过WAP代理网关获取手机号，基本已失效
ReqContentLength = this.Context.Request.ContentLength;
if (Compiled.Debug)
{
string.Format("CN:{0} | CT:{1} | BL:{2} | HS:{3} | CL:{4}", ReqChannel, ReqContentType, ReqBodyLength, ReqHeaderSig, ReqContentLength).Debug("=== 请求上行HEADER ===");
}
//基本判断
if (ReqBodyLength != ReqContentLength || ReqContentLength < 4 || !ReqChannel.ChannelCodeExists() || ReqHeaderSig.Length != 16)
{
new Exception("=== 请求上行HEADER基本信息错误 ===").Error();
return(false);
}
//HEADER层数据校验码确认
if (!string.Format("{0}{1}{2}{3}", ReqChannel, (int)ReqContentType, ReqBodyLength, ReqChannel.GetChannelKey()).CreateMD5EncryptShort().Equals(ReqHeaderSig))
{
new Exception("=== 请求上行HEADER:[HS]校验码错误 ===").Error();
return(false);
}
//BODY层数据解析及校验
Stream inputStream = this.Context.Request.InputStream;
if ((int)inputStream.Length != ReqBodyLength)
{
new Exception("=== 请求上行数据长度验码错误 ===").Error();
return(false);
}
BinaryReader reader = new BinaryReader(inputStream);
StreamContext streamContext = new StreamContext(reader, Encoding.UTF8);
uint adlerSum = streamContext.ReadUInt32();
byte[] buffer = streamContext.ReadBytes(ReqContentLength - 4);
streamContext.Dispose();
reader.Close();
reader.Dispose();
inputStream.Close();
inputStream.Dispose();
uint adlChkNum = (uint)buffer.Adler32CheckSum();
//BODY数据校验
if (adlChkNum != adlerSum)
{
new Exception("=== 请求上行BODY数据验码错误 ===").Error();
return(false);
}
//请求上行基类
RequestBase reqBase = buffer.ProtoBufDeserialize <RequestBase>();
if (Compiled.Debug)
{
reqBase.Debug("=== 请求上行基类 ： RequestBase ===");
}
UserId = reqBase.UserId;
DeviceId = reqBase.DeviceId;
Command = reqBase.Command ?? string.Empty;
CmdData = reqBase.Data ?? new byte[0];
SessionId = reqBase.SessionId ?? string.Empty;
Respond = new RespondBase {
Command = Command, Status = Status.Succeed, Code = RespondCode.Success, Attach = reqBase.Attach, Data = null
};
//命令号不存在
if (!Command.CmdExists())
{
Flush(RespondCode.CmdInvalid);
return(false);
}
//当前命令必须设置DeviceId
if (!Command.CmdIsExcepted(1) && DeviceId < 100000)
{
Flush(RespondCode.DeviceInvalid);
return(false);
}
//登录SESSIONID
if (!this.Command.CmdIsExcepted() && !SessionId.SessionIsValid(UserId, ExpiredConfigs.GetSessionExpired()))
{
Flush(RespondCode.SessionInvalid);
return(false);
}
return(true);
}