private static Target LoadTarget(RawSimpleEntity e, SerializableEntity target)
{
if (!"target".Equals(target.type))
{
return(null);
}
BitmapImage icon = null;
if (target.icon != null)
{
using (var s = new MemoryStream(target.icon))
{
icon = new BitmapImage();
icon.BeginInit();
icon.CacheOption = BitmapCacheOption.OnLoad;
icon.StreamSource = s;
icon.EndInit();
}
}
return(new Target
{
Guid = e.Guid,
Title = target.title,
Uri = target.uri,
Icon = icon,
Description = target.descr
});
}
private static Account LoadAccount(RawSimpleEntity e, SerializableEntity account, IDictionary <Guid, Entity> entities)
{
if (!"account".Equals(account.type))
{
return(null);
}
Login login = null;
if (account.login != null)
{
login = (Login)entities[(Guid)account.login];
}
Target target = null;
if (account.target != null)
{
target = (Target)entities[(Guid)account.target];
}
return(new Account
{
Guid = e.Guid,
Password = account.pass,
Login = login,
Target = target,
Description = account.descr
});
}
private static RawSimpleEntity Persist(Target target)
{
var ht = new SerializableEntity();
ht.type = "target";
ht.title = target.Title;
ht.descr = target.Description;
ht.uri = target.Uri;
if (target.Icon != null)
{
PngBitmapEncoder enc = new PngBitmapEncoder();
enc.Frames.Add(CreateResizedImage(target.Icon, 16, 16));
using (var s = new System.IO.MemoryStream())
{
enc.Save(s);
s.Flush();
ht.icon = s.ToArray();
}
}
RawSimpleEntity e = new RawSimpleEntity();
e.Guid = target.Guid;
var json = JsonConvert.SerializeObject(ht);
e.Data = Encoding.UTF8.GetBytes(json);
return(e);
}
public IEnumerable <RawSimpleEntity> DecryptAll(
IEnumerable <RawSimpleEntity> entities, string password, byte[] salt)
{
if (String.IsNullOrEmpty(password))
{
foreach (var entity in entities)
{
yield return(entity);
}
}
var key = Hash(password, GetDataSalt(salt));
foreach (var entity in entities)
{
RawSimpleEntity e = new RawSimpleEntity();
e.Guid = entity.Guid;
using (var ms = new MemoryStream(entity.Data))
{
Rijndael rijndael = Rijndael.Create();
rijndael.Key = key;
byte[] iv = new byte[16];
ms.Read(iv, 0, 16);
rijndael.IV = iv;
var buffer = new byte[entity.Data.Length - 16];
using (var cs = new CryptoStream(ms, rijndael.CreateDecryptor(), CryptoStreamMode.Read))
{
var read = cs.Read(buffer, 0, buffer.Length);
e.Data = new byte[read];
Array.Copy(buffer, e.Data, read);
}
}
yield return(e);
}
}
public IEnumerable <RawSimpleEntity> EncryptAll(
IEnumerable <RawSimpleEntity> entities, string password, byte[] salt)
{
if (String.IsNullOrEmpty(password))
{
foreach (var entity in entities)
{
yield return(entity);
}
}
var key = Hash(password, GetDataSalt(salt));
foreach (var entity in entities)
{
RawSimpleEntity e = new RawSimpleEntity();
e.Guid = entity.Guid;
using (var ms = new MemoryStream())
{
Rijndael rijndael = Rijndael.Create();
rijndael.Key = key;
rijndael.GenerateIV();
using (var cs = new CryptoStream(ms, rijndael.CreateEncryptor(), CryptoStreamMode.Write))
{
cs.Write(entity.Data, 0, entity.Data.Length);
}
var data = ms.ToArray();
e.Data = new byte[data.Length + 16];
Array.Copy(rijndael.IV, e.Data, 16);
Array.Copy(data, 0, e.Data, 16, data.Length);
}
yield return(e);
}
}
private static Login LoadLogin(RawSimpleEntity e, SerializableEntity login)
{
if (!"login".Equals(login.type))
{
return(null);
}
return(new Login {
Guid = e.Guid,
Username = login.user,
Description = login.descr
});
}
private static RawSimpleEntity Persist(Login target)
{
var ht = new SerializableEntity();
ht.type = "login";
ht.user = target.Username;
ht.descr = target.Description;
RawSimpleEntity e = new RawSimpleEntity();
e.Guid = target.Guid;
var json = JsonConvert.SerializeObject(ht);
e.Data = Encoding.UTF8.GetBytes(json);
return(e);
}
private static RawSimpleEntity Persist(Account target)
{
var ht = new SerializableEntity();
ht.type = "account";
ht.descr = target.Description;
ht.pass = target.Password;
if (target.Target != null)
{
ht.target = target.Target.Guid;
}
if (target.Login != null)
{
ht.login = target.Login.Guid;
}
RawSimpleEntity e = new RawSimpleEntity();
e.Guid = target.Guid;
var json = JsonConvert.SerializeObject(ht);
e.Data = Encoding.UTF8.GetBytes(json);
return(e);
}
private static SerializableEntity LoadEntity(RawSimpleEntity e)
{
return((SerializableEntity)JsonConvert.DeserializeObject(Encoding.UTF8.GetString(e.Data), typeof(SerializableEntity)));
}
