public string Encode(OwnerToken token)
{
var ownerTypeBys = NetBitConverter.GetBytes(token.OwnerType);
var ownerIdBys = NetBitConverter.GetBytes(token.OwnerId);
var expireTimeBys = GetBytes(token.ExpireTime);
var lstLen = 1 + ownerTypeBys.Length + ownerIdBys.Length + expireTimeBys.Length;
var mdatLst = new List <byte>(lstLen);
mdatLst.Add(CurrentVersion);
mdatLst.AddRange(ownerTypeBys);
mdatLst.AddRange(ownerIdBys);
mdatLst.AddRange(expireTimeBys);
var mdatBys = mdatLst.ToArray();
//签名
var signBys = ArrayUtil.Addition(_appSecretBytes, mdatBys);
var hashBys = Sha1(signBys);
//编码成字符串
var encBys = ArrayUtil.Addition(hashBys, mdatBys);
return(_urlDataCodec.Encode(encBys));
}
public string Encode(FileToken token)
{
var pseudoIdBys = NetBitConverter.GetBytes(token.PseudoId);
var fileIdBys = NetBitConverter.GetBytes(token.FileId);
var ownerIdBys = NetBitConverter.GetBytes(token.FileOwnerId);
var mimeBys = NetBitConverter.GetBytes(token.MimeId);
var expireTimeBys = GetBytes(token.ExpireTime);
var fileCreateTimeBys = GetBytes(token.FileCreateTime);
var lstLen = 1 + pseudoIdBys.Length + fileIdBys.Length + ownerIdBys.Length + mimeBys.Length + expireTimeBys.Length + fileCreateTimeBys.Length;
var mdatLst = new List <byte>(lstLen);
mdatLst.Add(CurrentVersion);
mdatLst.AddRange(pseudoIdBys);
mdatLst.AddRange(fileIdBys);
mdatLst.AddRange(ownerIdBys);
mdatLst.AddRange(mimeBys);
mdatLst.AddRange(expireTimeBys);
mdatLst.AddRange(fileCreateTimeBys);
var mdatBys = mdatLst.ToArray();
//签名
var signBys = ArrayUtil.Addition(_appSecretBytes, mdatBys);
var hashBys = Md5(signBys);
//编码成字符串
var encBys = ArrayUtil.Addition(hashBys, mdatBys);
return(_urlDataCodec.Encode(encBys));
}
public string GetFileDirectoryPath(uint pseudoId, DateTime fileCreateTime, int fileId)
{
var pIdBys = NetBitConverter.GetBytes(pseudoId);
//每个文件有一个独立的目录，用于存放各种尺寸的文件
//fileDirName = FileTableIndex_FileId
var fileDirName = $"{pseudoId % _dbOption.CurrentValue.FileTableCount}_{fileId}";
//dirPath = Root/Year/Month/Day/pseudoId[0]+pseudoId[1]
var dirPath = Path.Combine(
_option.CurrentValue.RootPath,
fileCreateTime.Year.ToString(),
fileCreateTime.Month.ToString("D2"),
fileCreateTime.Day.ToString("D2"),
pIdBys[0].ToString("x") + pIdBys[1].ToString("x"),
fileDirName
);
if (!Directory.Exists(dirPath))
{
Directory.CreateDirectory(dirPath);
}
return(dirPath);
}
private static byte[] GetBytes(DateTime dt)
{
return(NetBitConverter.GetBytes(DateTimeUtil.DateTimeToUnixTimestamp(dt)));
}
private static byte[] GetBytes(DateTime dt)
{
return(NetBitConverter.GetBytes(dt.ToBinary()));
}