private async void GetEntries(string passwd)
{
if (!KeyProvider.CorrectPassword(passwd))
{
RaiseGetEntriesFailed();
return;
}
var task = new Task <List <JournalEntry> >(() =>
{
return(_entriesProvider.GetEntries(passwd));
});
task.Start();
var result = new List <JournalEntry>();
try
{
result = await task;
RaiseGetEntriesCompleted();
}
catch (Exception)
{
RaiseGetEntriesFailed();
}
this.Entries = new ObservableCollection <JournalEntry>(result);
}
public string Decrypt(string encryptedContent, string password)
{
if (!KeyProvider.CorrectPassword(password))
{
throw new Exception("Password isn`t correct");
}
var buffer = Convert.FromBase64String(encryptedContent);
string decrypted;
var transform = GetDecryptor();
using (var ms = new MemoryStream())
{
using (var cs = new CryptoStream(ms, transform, CryptoStreamMode.Write))
{
cs.Write(buffer, 0, buffer.Length);
cs.FlushFinalBlock();
cs.Clear();
cs.Close();
decrypted = Encoding.UTF8.GetString(ms.ToArray());
ms.Close();
}
}
return(decrypted);
}
private ICryptoTransform GetEncryptor(string password)
{
if (!KeyProvider.CorrectPassword(password))
{
throw new Exception("Password isn`t correct");
}
var rijndael = new RijndaelManaged()
{
Key = KeyProvider.GetKey(), IV = KeyProvider.GetIV()
};
return(rijndael.CreateEncryptor());
}
private async void AddEntry(string passwd)
{
if (!KeyProvider.CorrectPassword(passwd))
{
RaiseAddEntryFailed();
}
var newEntry = new JournalEntry(Content, DateTime.Now);
var task = Task.Factory.StartNew(() =>
{
_entriesProvider.AddEntry(newEntry, passwd);
});
try
{
await task;
RaiseAddEntryCompleted();
}
catch (Exception)
{
RaiseAddEntryFailed();
}
}
