private bool SaveToFile(TData data)
{
try
{
var json = JsonConvert.SerializeObject(data);
var aes = EncryptionProvider.EncryptText(json, _StorageSalt);
var md5 = EncryptionProvider.MD5($"{aes}_{_StorageSalt}");
var j = new SedeRootDto
{
EncryptedData = aes,
Md5 = md5
};
var rj = JsonConvert.SerializeObject(j);
using (var f = new FileStream(_jsonFilePath,
FileMode.Create,
FileAccess.Write,
FileShare.ReadWrite))
{
using (var r = new StreamWriter(f, Encoding.UTF8))
{
r.Write(rj);
}
}
return(true);
}
catch (Exception e)
{
//add logger here
throw;
}
}
private TData ReadFromFile()
{
try
{
if (!File.Exists(_jsonFilePath))
{
this.SaveToFile(default(TData));
}
string json;
using (var f = new FileStream(_jsonFilePath,
FileMode.Open,
FileAccess.Read,
FileShare.ReadWrite))
{
using (var r = new StreamReader(f, Encoding.UTF8))
{
json = r.ReadToEnd();
}
}
var data = JsonConvert.DeserializeObject <SedeRootDto>(json);
if (ReferenceEquals(data, null))
{
File.Delete(_jsonFilePath);
return(default(TData));
}
var md5 = EncryptionProvider.MD5($"{data.EncryptedData}_{_StorageSalt}");
if (md5.Equals(data.Md5))
{
var rj = EncryptionProvider.DecryptText(data.EncryptedData, _StorageSalt);
return(JsonConvert.DeserializeObject <TData>(rj));
}
//todo: Implement safety removing of data file
File.Delete(_jsonFilePath);
return(default(TData));
}
catch (Exception e)
{
Console.WriteLine(e);
throw;
}
}
