public void TestByteStreamReading()
{
// Test bytes
using (ByteStream stream = new ByteStream(testData))
{
for (int i = 0; i < testData.Length; i++)
{
Assert.AreEqual(testData[i], stream.ReadByte(), "ReadByte returned incorrect value");
}
}
// Test ushorts
using (ByteStream stream = new ByteStream(testData))
{
Assert.AreEqual(0x0841, stream.ReadUshort());
Assert.AreEqual(0x6472, stream.ReadUshort());
Assert.AreEqual(0x6965, stream.ReadUshort());
Assert.AreEqual(0x6e6e, stream.ReadUshort());
}
// Test uints
using (ByteStream stream = new ByteStream(testData))
{
Assert.AreEqual(0x08416472, stream.ReadUint());
Assert.AreEqual(0x69656e6e, stream.ReadUint());
}
// Test string
using (ByteStream stream = new ByteStream(testData))
{
Assert.AreEqual("Adrienne", stream.ReadString(stream.ReadByte(), Encoding.ASCII));
}
}
public void TestByteStreamNumberWriting()
{
ByteStream stream = new ByteStream();
stream.WriteByte(0x08);
stream.WriteUshort(0x4164);
stream.WriteUint(0x7269656e);
stream.WriteByteArray(new byte[] {0x6e, 0x65});
Assert.AreEqual(testData.Length, stream.GetByteCount());
ByteStream testStream = new ByteStream(stream.GetBytes());
Assert.AreEqual("Adrienne", testStream.ReadString(testStream.ReadByte(), Encoding.ASCII));
}
/// <summary>
/// Parses a byte buffer into an <see cref="BartID"/> object
/// </summary>
private void ReadIconInfo(byte[] buffer, UserInfo userinfo)
{
using (ByteStream iconStream = new ByteStream(buffer))
{
int iconStreamSize = iconStream.GetByteCount();
while (iconStream.CurrentPosition + 4 <= iconStreamSize)
{
BartID item = new BartID(iconStream);
// Find the end of the current data item in the stream
int endDataPosition = iconStream.CurrentPosition + item.Data.Length;
switch (item.Type)
{
case BartTypeId.BuddyIcon:
if (!GraphicsManager.IsBlankIcon(item.Data))
{
userinfo.Icon = item;
}
break;
case BartTypeId.StatusString: // Available message
using (ByteStream messageStream = new ByteStream(item.Data))
{
Encoding encoding = Encoding.UTF8;
byte[] amessage = new byte[0];
if (messageStream.HasMoreData)
{
// Pull the message to a byte array, assume at first that the encoding
// is UTF-8. If existing encoding information exists, use that instead
amessage = messageStream.ReadByteArray(messageStream.ReadByte());
// Check if there's encoding information available
if (messageStream.HasMoreData)
{
// Check to see if the encoding's been specified
if (messageStream.ReadUshort() == 0x0001)
{
messageStream.AdvanceOffset(2);
string encodingStr = messageStream.ReadString(messageStream.ReadUshort(), Encoding.ASCII);
// Try to use the encoding from the byte stream
try
{
encoding = Encoding.GetEncoding(encodingStr);
}
catch (ArgumentException)
{
Logging.WriteString(
"ReadIconInfo: Got unknown encoding for available message ("
+ encodingStr + "), falling back to UTF-8");
encoding = Encoding.UTF8;
}
}
}
}
userinfo.AvailableMessage = Encoding.Unicode.GetString(
Encoding.Convert(encoding, Encoding.Unicode, amessage));
}
break;
default:
break;
}
}
}
}
/// <summary>
/// Initializes a new BartID from a byte stream
/// </summary>
internal BartID(ByteStream stream)
{
type = (BartTypeId)stream.ReadUshort();
flags = (BartFlags)stream.ReadByte();
byte dataLength = stream.ReadByte();
data = stream.ReadByteArray(dataLength);
}
/// <summary>
/// Processes a newly received offline message for the specified UIN
/// </summary>
/// <remarks>This is called from the ICQ manager, which receives the incoming
/// offline message packet and sends it here for processing</remarks>
internal void ReadIcqOfflineMessage(String uin, ByteStream stream)
{
String sender = stream.ReadUintLE().ToString();
// Read in the date information (GMT)
ushort year = stream.ReadUshortLE();
byte month = stream.ReadByte();
byte day = stream.ReadByte();
byte hourGmt = stream.ReadByte();
byte minute = stream.ReadByte();
DateTime received = new DateTime(year, month, day, hourGmt, minute, 0, DateTimeKind.Utc);
// Read in message type information
byte messageType = stream.ReadByte();
byte messageFlags = stream.ReadByte();
Encoding messageEncoding = GetOfflineMessageEncoding(messageType);
OfflineIM im = new OfflineIM(sender);
im.ReceivedOn = received;
im.Message = Encoding.Unicode.GetString(
Encoding.Convert(messageEncoding, Encoding.Unicode, stream.ReadByteArray(stream.ReadUshortLE() - 1)));
im.IsAutoResponse = (messageFlags == 0x03) || (messageType == 0xE8);
// Store it for delivery to the client
AcceptIcbmOIM(im);
}
/// <summary>
/// Retrieves the message text from SNAC(04,07) TLV 02
/// </summary>
/// <param name="stream">A received <see cref="ByteStream"/></param>
/// <param name="message">An <see cref="IM"/> object to be populated</param>
private void GetChannelOneMessage(ByteStream stream, ref IM message)
{
while (stream.HasMoreData)
{
byte identifier = stream.ReadByte();
byte version = stream.ReadByte();
ushort length = stream.ReadUshort();
switch (identifier)
{
case 0x01: // Message text
ushort charset = stream.ReadUshort();
ushort language = stream.ReadUshort();
Encoding incoming = IM.GetEncodingFromCharset(charset, language);
message.Message = Encoding.Unicode.GetString(
Encoding.Convert(incoming, Encoding.Unicode, stream.ReadByteArray(length - 4)));
break;
default: // Unhandled case
stream.AdvanceOffset(length);
break;
}
}
}
/// <summary>
/// Retrieves the message text from SNAC(04,07) TLV 05
/// </summary>
/// <param name="stream">A received <see cref="ByteStream"/></param>
/// <param name="message">An <see cref="IM"/> object to be populated</param>
private void GetChannelfourMessage(ByteStream stream, ref IM message)
{
stream.ReadByteArray(46); //fixed unknon part
ushort length = stream.ReadUshort();
ushort charset = stream.ReadUshort();
stream.ReadByte();
ushort charsubset = (ushort)0;//stream.ReadUshort();
Encoding incoming = IM.GetEncodingFromCharset(charset, charsubset);
string xml = Encoding.Unicode.GetString(
Encoding.Convert(incoming, Encoding.Unicode, stream.ReadByteArray(length)));
// parse xml
System.Xml.XmlDocument doc = new System.Xml.XmlDocument();
doc.LoadXml(xml);
System.Xml.XmlNode node = doc.SelectSingleNode("/sms_message/text");
if (node != null)
{
message.Message = node.InnerText;
}
node = doc.SelectSingleNode("/sms_message/sender");
if (node != null)
{
message.ScreenName = node.InnerText;
}
}
/// <summary>
/// Parses a byte buffer into an <see cref="BartID"/> object
/// </summary>
private void ReadIconInfo(byte[] buffer, UserInfo userinfo)
{
using (ByteStream iconStream = new ByteStream(buffer))
{
int iconStreamSize = iconStream.GetByteCount();
while (iconStream.CurrentPosition + 4 <= iconStreamSize)
{
BartID item = new BartID(iconStream);
// Find the end of the current data item in the stream
int endDataPosition = iconStream.CurrentPosition + item.Data.Length;
switch (item.Type)
{
case BartTypeId.BuddyIcon:
if (!GraphicsManager.IsBlankIcon(item.Data))
{
userinfo.Icon = item;
}
break;
case BartTypeId.StatusString: // Available message
using (ByteStream messageStream = new ByteStream(item.Data))
{
Encoding encoding = Encoding.UTF8;
byte[] amessage = new byte[0];
if (messageStream.HasMoreData)
{
// Pull the message to a byte array, assume at first that the encoding
// is UTF-8. If existing encoding information exists, use that instead
amessage = messageStream.ReadByteArray(messageStream.ReadByte());
// Check if there's encoding information available
if (messageStream.HasMoreData)
{
// Check to see if the encoding's been specified
if (messageStream.ReadUshort() == 0x0001)
{
messageStream.AdvanceOffset(2);
string encodingStr = messageStream.ReadString(messageStream.ReadUshort(), Encoding.ASCII);
// Try to use the encoding from the byte stream
try
{
encoding = Encoding.GetEncoding(encodingStr);
}
catch (ArgumentException)
{
Logging.WriteString(
"ReadIconInfo: Got unknown encoding for available message ("
+ encodingStr + "), falling back to UTF-8");
encoding = Encoding.UTF8;
}
}
}
}
userinfo.AvailableMessage = Encoding.Unicode.GetString(
Encoding.Convert(encoding, Encoding.Unicode, amessage));
}
break;
default:
break;
}
}
}
}
