private void CheckForValidity(bool force = false)
{
if (_isComplete && !force)
{
return;
}
IsValid = false;
IsComplete = false;
if (Chunks.Count <= 0)
{
return;
}
var tmp = Chunks.Aggregate <byte[], IEnumerable <byte> >(null, (current, b) => current == null ? b : current.Concat(b)).ToArray();
if (tmp.Length < 12) // Can't fit the header in here
{
return;
}
// Check the header
if (_header.Where((t, i) => tmp[i] != t).Any())
{
return;
}
// Another checking
if (tmp[8] != 0x06)
{
return;
}
// Get the size and name
var size = BitConverter.ToInt32(tmp.SubArray(4, 4).Reverse().ToArray(), 0);
IsValid = true;
// Get the name length
const int nameOffset = 12;
int nameLength = tmp[9];
if (tmp.Length > nameOffset + tmp[9])
{
Name = Encoding.Unicode.GetString(tmp.SubArray(nameOffset, nameLength));
_isComplete = tmp.Length >= size + nameOffset + nameLength;
Debug.WriteLine(tmp.Length);
if (_isComplete)
{
Data = tmp.SubArray(nameOffset + nameLength, size - nameLength - 4).Concat(new byte[] { 0x00, 0x00 }).ToArray();
}
}
}
private void CheckForValidity(bool force = false)
{
if (_isComplete && !force)
{
return;
}
IsValid = false;
IsComplete = false;
if (Chunks.Count <= 0)
{
return;
}
var tmp = Chunks.Aggregate <byte[], IEnumerable <byte> >(null, (current, b) => current == null ? b : current.Concat(b)).ToArray();
// Check the header
Type = PrimeUsbDataType.Unknown;
foreach (var _header in _headers)
{
if (tmp.Length < _header.Value.Header.Length || _header.Value.Header.Where((t, i) => tmp[i] != t).Any())
{
continue;
}
Type = _header.Value.Type; // Valid type
break;
}
var size = 0;
switch (Type)
{
case PrimeUsbDataType.Message:
size = BitConverter.ToInt32(tmp.SubArray(4, 4).Reverse().ToArray(), 0);
IsValid = true;
if (tmp.Length > 8 + size)
{
Data = tmp.SubArray(8, size - 2);
_isComplete = true;
}
break;
case PrimeUsbDataType.File:
if (tmp.Length < 12) // Can't fit the header for files in here
{
return;
}
// Another checking
if (tmp[8] != 0x06)
{
return;
}
// Get the size and name
size = BitConverter.ToInt32(tmp.SubArray(4, 4).Reverse().ToArray(), 0);
IsValid = true;
// Get the name length
const int nameOffset = 12;
int nameLength = tmp[9];
if (tmp.Length > nameOffset + tmp[9])
{
Name = Encoding.Unicode.GetString(tmp.SubArray(nameOffset, nameLength));
_isComplete = tmp.Length >= size + nameOffset + nameLength;
if (_isComplete)
{
Data = tmp.SubArray(nameOffset + nameLength, size - nameLength - 4)
.Concat(new byte[] { 0x00, 0x00 }).ToArray();
}
}
break;
}
}
