/// <summary>
/// Checks to see if a given packets data matches a password
/// provided by the receiving client and returns the matching password if found.
/// </summary>
/// <param name="bytes">The packets data</param>
/// <param name="passwordManager">The receiving client's list of passwords</param>
/// <param name="passwordRequired">Indicates if the request must supply a valid password</param>
/// <param name="password">Returns the matching password if found; null otherwise</param>
/// <returns><c>true</c> if the password matches, <c>false</c> otherwise</returns>
protected static bool IsPasswordValid(byte[] bytes, PasswordManager passwordManager, bool passwordRequired, out string password)
{
password = null;
byte[] packetWithoutPassword = new byte[bytes.Length - 16];
Array.Copy(bytes, 0, packetWithoutPassword, 0, packetWithoutPassword.Length);
byte[] thatChecksum = new byte[16];
Array.Copy(bytes, bytes.Length - 16, thatChecksum, 0, 16);
string thatChecksumString = Encoding.UTF8.GetString(thatChecksum);
ByteBuilder bpb = new ByteBuilder();
bpb.Append(packetWithoutPassword);
Queue<string> validPasswords = new Queue<string>();
foreach (KeyValuePair<string, Password> item in passwordManager.Passwords)
{
validPasswords.Enqueue(item.Key);
}
// if the request does not require a password, then
// we can also try no (blank) password
if (!passwordRequired) validPasswords.Enqueue(String.Empty);
while(validPasswords.Count > 0)
{
string p = validPasswords.Dequeue();
ByteBuilder pb = new ByteBuilder();
pb.Append(bpb.GetBytes());
pb.Append(p);
byte[] thisChecksum = Cryptography.ComputeHash(pb.GetBytes(), Cryptography.HashAlgorithmType.MD5);
string thisChecksumString = Encoding.UTF8.GetString(thisChecksum);
if (thisChecksumString == thatChecksumString)
{
password = p;
return true;
}
}
return false;
}
private static object getRealValue(IDataReader datareader, int ordinal, Type t)
{
if (t == typeof(Int16)) return !datareader.IsDBNull(ordinal) ? (object)datareader.GetInt16(ordinal) : null;
if (t == typeof(Int32)) return !datareader.IsDBNull(ordinal) ? (object)datareader.GetInt32(ordinal) : null;
if (t == typeof(Int64)) return !datareader.IsDBNull(ordinal) ? (object)datareader.GetInt32(ordinal) : null;
if (t == typeof(Byte[]))
{
if (datareader.IsDBNull(ordinal)) return null;
int bufferSize = 1024;
int startIndex = 0;
byte[] outbyte = new byte[bufferSize];
ByteBuilder bb = new ByteBuilder();
long retval = datareader.GetBytes(ordinal, startIndex, outbyte, 0, bufferSize);
while (retval == bufferSize)
{
bb.Append(outbyte);
startIndex += bufferSize;
retval = datareader.GetBytes(ordinal, startIndex, outbyte, 0, bufferSize);
}
if (retval > 0)
bb.Append(outbyte);
return bb.GetBytes();
}
if (t == typeof(String)) return !datareader.IsDBNull(ordinal) ? datareader.GetString(ordinal) : null;
if (t == typeof(DateTime)) return !datareader.IsDBNull(ordinal) ? (object)datareader.GetDateTime(ordinal) : null;
if (t == typeof(Boolean)) return !datareader.IsDBNull(ordinal) ? (object)datareader.GetBoolean(ordinal) : null;
if (t == typeof(Double)) return !datareader.IsDBNull(ordinal) ? (object)datareader.GetDouble(ordinal) : null;
if (t == typeof(Single)) return !datareader.IsDBNull(ordinal) ? (object)datareader.GetFloat(ordinal) : null;
if (t == typeof(Guid)) return !datareader.IsDBNull(ordinal) ? (object)datareader.GetGuid(ordinal) : null;
if (t == typeof(Decimal)) return !datareader.IsDBNull(ordinal) ? (object)datareader.GetDecimal(ordinal) : null;
if (t == typeof(Byte)) return !datareader.IsDBNull(ordinal) ? (object)datareader.GetByte(ordinal) : null;
return null;
}
/// <summary>
/// Converts the notification information into a packet of data to be sent
/// to the Growl receiving application.
/// </summary>
/// <returns>byte array</returns>
private byte[] PrepareData()
{
int flags = ConvertPriorityToFlag(this.priority);
if (this.sticky) flags = flags | 1;
ByteBuilder bb = new ByteBuilder();
bb.Append((byte)this.protocolVersion);
bb.Append((byte)this.packetType);
bb.Append((short)flags);
bb.Append(ByteBuilder.GetStringLengthAsShort(this.notificationType.Name));
bb.Append(ByteBuilder.GetStringLengthAsShort(this.title));
bb.Append(ByteBuilder.GetStringLengthAsShort(this.description));
bb.Append(ByteBuilder.GetStringLengthAsShort(this.applicationName));
bb.Append(this.notificationType.Name);
bb.Append(this.title);
bb.Append(this.description);
bb.Append(this.applicationName);
// handle the password
ByteBuilder pb = new ByteBuilder();
pb.Append(this.password);
ByteBuilder bpb = new ByteBuilder();
bpb.Append(bb.GetBytes());
bpb.Append(pb.GetBytes());
byte[] checksum = Cryptography.ComputeHash(bpb.GetBytes(), Cryptography.HashAlgorithmType.MD5);
ByteBuilder fb = new ByteBuilder();
fb.Append(bb.GetBytes());
fb.Append(checksum);
byte[] data = fb.GetBytes();
return data;
}
private static object getRealValue(IDataReader datareader, int ordinal, Type t)
{
if (t == typeof(Int16))
{
return(!datareader.IsDBNull(ordinal) ? (object)datareader.GetInt16(ordinal) : null);
}
if (t == typeof(Int32))
{
return(!datareader.IsDBNull(ordinal) ? (object)datareader.GetInt32(ordinal) : null);
}
if (t == typeof(Int64))
{
return(!datareader.IsDBNull(ordinal) ? (object)datareader.GetInt32(ordinal) : null);
}
if (t == typeof(Byte[]))
{
if (datareader.IsDBNull(ordinal))
{
return(null);
}
int bufferSize = 1024;
int startIndex = 0;
byte[] outbyte = new byte[bufferSize];
ByteBuilder bb = new ByteBuilder();
long retval = datareader.GetBytes(ordinal, startIndex, outbyte, 0, bufferSize);
while (retval == bufferSize)
{
bb.Append(outbyte);
startIndex += bufferSize;
retval = datareader.GetBytes(ordinal, startIndex, outbyte, 0, bufferSize);
}
if (retval > 0)
{
bb.Append(outbyte);
}
return(bb.GetBytes());
}
if (t == typeof(String))
{
return(!datareader.IsDBNull(ordinal) ? datareader.GetString(ordinal) : null);
}
if (t == typeof(DateTime))
{
return(!datareader.IsDBNull(ordinal) ? (object)datareader.GetDateTime(ordinal) : null);
}
if (t == typeof(Boolean))
{
return(!datareader.IsDBNull(ordinal) ? (object)datareader.GetBoolean(ordinal) : null);
}
if (t == typeof(Double))
{
return(!datareader.IsDBNull(ordinal) ? (object)datareader.GetDouble(ordinal) : null);
}
if (t == typeof(Single))
{
return(!datareader.IsDBNull(ordinal) ? (object)datareader.GetFloat(ordinal) : null);
}
if (t == typeof(Guid))
{
return(!datareader.IsDBNull(ordinal) ? (object)datareader.GetGuid(ordinal) : null);
}
if (t == typeof(Decimal))
{
return(!datareader.IsDBNull(ordinal) ? (object)datareader.GetDecimal(ordinal) : null);
}
if (t == typeof(Byte))
{
return(!datareader.IsDBNull(ordinal) ? (object)datareader.GetByte(ordinal) : null);
}
return(null);
}
/// <summary>
/// Frames the response with the special WebSocket framing bytes before sending.
/// </summary>
/// <param name="bytes">The data to be sent.</param>
public override void BeforeResponse(ref byte[] bytes)
{
ByteBuilder bb = new ByteBuilder();
// FIN and opcode
byte bFrameControl = BYTE_FIN_FINAL + BYTE_OPCODE_TEXT;
bb.Append(bFrameControl);
// Mask and length
long length = bytes.LongLength;
if (length > short.MaxValue)
{
bb.Append(BYTE_LENGTH_64);
bb.Append(length);
}
else if (length > (int)BYTE_LENGTH_7)
{
bb.Append(BYTE_LENGTH_16);
bb.Append((short)length);
}
else
{
bb.Append((byte)length);
}
// actual GNTP bytes
bb.Append(bytes);
bytes = bb.GetBytes();
/*
* // wrap the data with the framing
* byte[] wrappedArray = new byte[extraByteCount + bytes.Length];
* wrappedArray[0] = bFrameControl;
* Array.Copy(bDataControl, 0, wrappedArray, 1, bDataControl.Length);
* Array.Copy(bytes, 0, wrappedArray, extraByteCount, bytes.Length);
* bytes = wrappedArray;
* */
/* dont do this here - we might need to send callback data
* // send a Close frame
* byte[] bCloseBytes = new byte[2];
* bCloseBytes[0] = 128 + 8; // FIN and Close
* bCloseBytes[1] = 0;
*
* wrappedArray = new byte[bCloseBytes.Length + bytes.Length];
* Array.Copy(bytes, 0, wrappedArray, 0, bytes.Length);
* Array.Copy(bCloseBytes, 0, wrappedArray, bytes.Length, bCloseBytes.Length);
* bytes = wrappedArray;
* */
/* write out the bits
* System.Collections.BitArray ba = new System.Collections.BitArray(bytes);
* for (int i = 0; i < ba.Count; i++)
* {
* if (i > 0 && i % 8 == 0) Console.WriteLine("");
* bool bit = ba.Get(i);
* Console.Write(bit ? 1 : 0);
* }
* Console.WriteLine();
* */
}
/// <summary>
/// Converts the notification information into a packet of data to be sent
/// to the Growl receiving application.
/// </summary>
/// <returns>byte array</returns>
private byte[] PrepareData()
{
ByteBuilder nb = new ByteBuilder();
ByteBuilder db = new ByteBuilder();
int index = 0;
int notificationTypeCount = 0;
int notificationTypeEnabledCount = 0;
foreach (NotificationType notificationType in this.notificationTypes)
{
nb.Append(notificationType.Name.Length);
nb.Append(notificationType.Name);
notificationTypeCount++;
if (notificationType.Enabled)
{
notificationTypeEnabledCount++;
db.Append((byte)index);
}
index++;
}
ByteBuilder bb = new ByteBuilder();
bb.Append((byte)this.protocolVersion);
bb.Append((byte)this.packetType);
bb.Append(ByteBuilder.GetStringLengthAsShort(this.applicationName));
bb.Append((byte)notificationTypeCount);
bb.Append((byte)notificationTypeEnabledCount);
bb.Append(this.applicationName);
bb.Append(nb.GetBytes());
bb.Append(db.GetBytes());
// handle the password
ByteBuilder pb = new ByteBuilder();
pb.Append(this.password);
ByteBuilder bpb = new ByteBuilder();
bpb.Append(bb.GetBytes());
bpb.Append(pb.GetBytes());
byte[] checksum = Cryptography.ComputeHash(bpb.GetBytes(), Cryptography.HashAlgorithmType.MD5);
ByteBuilder fb = new ByteBuilder();
fb.Append(bb.GetBytes());
fb.Append(checksum);
byte[] data = fb.GetBytes();
return data;
}