xeno_rat_server.SocketHandler Class Reference

Collaboration diagram for xeno_rat_server.SocketHandler:

Public Member Functions
	SocketHandler (Socket socket, byte[] _EncryptionKey)
async Task< bool >	SendAsync (byte[] data)
	Sends the provided data asynchronously over the socket.
async Task< byte[]>	ReceiveAsync ()
	Asynchronously receives data and processes it according to the protocol, then returns the processed data.
byte[]	Concat (byte[] b1, byte[] b2)
	Concatenates two byte arrays and returns the result.
byte[]	BTruncate (byte[] bytes, int offset)
	Truncates the input byte array starting from the specified offset and returns the truncated byte array.
int	BytesToInt (byte[] data, int offset=0)
	Converts the specified byte array to an integer value.
byte[]	IntToBytes (int data)
	Converts an integer to a byte array.
void	SetRecvTimeout (int ms)
	Sets the receive timeout for the socket.
void	ResetRecvTimeout ()
	Resets the receive timeout for the socket.

Public Attributes
Socket	sock
byte[]	EncryptionKey
int	socktimeout = 0

Private Member Functions
async Task< byte[]>	RecvAllAsync_ddos_unsafer (int size)
	Asynchronously receives all the data of the specified size from the connected socket and returns the received data as a byte array.
async Task< byte[]>	RecvAllAsync_ddos_safer (int size)
	Asynchronously receives all data of the specified size from the socket and returns the received data as a byte array.
header	ParseHeader (byte[] data)
	Parses the header from the provided byte array and returns the parsed header object.

Private Attributes
bool	doProtocolUpgrade = false

Constructor & Destructor Documentation

SocketHandler()

xeno_rat_server.SocketHandler.SocketHandler ( Socket socket, byte[] _EncryptionKey )

inline

Member Function Documentation

BTruncate()

byte[] xeno_rat_server.SocketHandler.BTruncate ( byte[] bytes, int offset )

inline

Truncates the input byte array starting from the specified offset and returns the truncated byte array.

Parameters

bytes	The input byte array from which to truncate.
offset	The offset from which to start truncating the byte array.

Returns

The truncated byte array starting from the specified offset .

This method creates a new byte array T_data with a length equal to the difference between the length of the input byte array bytes and the specified offset . It then uses the Buffer.BlockCopy method to copy a portion of the input byte array starting from the specified offset into the new byte array T_data . The truncated byte array T_data is then returned.

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BytesToInt()

int xeno_rat_server.SocketHandler.BytesToInt ( byte[] data, int offset = 0 )

inline

Converts the specified byte array to an integer value.

Parameters

data	The byte array to be converted.
offset	The offset within the byte array at which to begin converting (default is 0).

Returns

The integer value represented by the specified byte array.

This method converts the specified byte array to an integer value, taking into account the endianness of the system. If the system is little-endian, the bytes are combined in little-endian order (least significant byte first). If the system is big-endian, the bytes are combined in big-endian order (most significant byte first).

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Concat()

byte[] xeno_rat_server.SocketHandler.Concat ( byte[] b1, byte[] b2 )

inline

Concatenates two byte arrays and returns the result.

Parameters

b1	The first byte array to be concatenated. If null, an empty byte array is used.
b2	The second byte array to be concatenated.

Returns

A byte array containing the concatenated elements of b1 and b2 .

This method concatenates the elements of the input byte arrays b1 and b2 into a single byte array. If b1 is null, an empty byte array is used for concatenation.

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IntToBytes()

byte[] xeno_rat_server.SocketHandler.IntToBytes ( int data )

inline

Converts an integer to a byte array.

Parameters

data	The integer to be converted to a byte array.

Returns

A byte array representing the input integer.

This method converts the input integer data to a byte array of length 4. If the system architecture is little-endian, the bytes are arranged in little-endian order, otherwise in big-endian order.

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ParseHeader()

header xeno_rat_server.SocketHandler.ParseHeader ( byte[] data )

inlineprivate

Parses the header from the provided byte array and returns the parsed header object.

Parameters

data	The byte array containing the header information.

Returns

The parsed header object.

This method parses the header from the provided byte array. If the first byte of the array is 1, it indicates that the data is compressed, and the method sets the corresponding properties of the header object. If the first byte is not 0 or 1, the method returns null, indicating an invalid header.

Exceptions

IndexOutOfRangeException

Thrown if the provided byte array is empty or does not contain sufficient data for parsing the header.

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ReceiveAsync()

async Task< byte[]> xeno_rat_server.SocketHandler.ReceiveAsync ( )

inline

Asynchronously receives data and processes it according to the protocol, then returns the processed data.

Returns

The processed data received from the client.

This method continuously receives data from the client and processes it according to the protocol. It first receives the length of the data, then the actual data. The method checks for disconnection at each step and returns null if the client has disconnected. If the received data indicates a protocol upgrade, it performs the upgrade and returns the processed data. If the received data does not indicate a protocol upgrade, it processes the data according to the current protocol and returns the processed data.

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RecvAllAsync_ddos_safer()

async Task< byte[]> xeno_rat_server.SocketHandler.RecvAllAsync_ddos_safer ( int size )

inlineprivate

Asynchronously receives all data of the specified size from the socket and returns the received data as a byte array.

Parameters

size	The size of the data to be received.

Returns

The received data as a byte array. Returns null if the socket is not connected, or if a timeout occurs while waiting for data.

This method asynchronously receives data from the socket until the total received data size matches the specified size. If the socket is not connected, the method returns null. If a timeout occurs while waiting for data, the method returns null. The method uses asynchronous socket operations to efficiently receive data without blocking the calling thread.

RecvAllAsync_ddos_unsafer()

async Task< byte[]> xeno_rat_server.SocketHandler.RecvAllAsync_ddos_unsafer ( int size )

inlineprivate

Asynchronously receives all the data of the specified size from the connected socket and returns the received data as a byte array.

Parameters

size	The size of the data to be received.

Returns

The received data as a byte array.

This method asynchronously receives data from the connected socket until the specified size is reached. It uses a while loop to continuously receive data in chunks and updates the total received and remaining data size until all the data is received. If the socket is not connected, it returns null. If no data is received (recv = 0), it sets the data to null and breaks the loop.

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ResetRecvTimeout()

void xeno_rat_server.SocketHandler.ResetRecvTimeout ( )

inline

Resets the receive timeout for the socket.

This method sets the receive timeout for the socket to zero, effectively disabling the receive timeout feature.

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SendAsync()

async Task< bool > xeno_rat_server.SocketHandler.SendAsync ( byte[] data )

inline

Sends the provided data asynchronously over the socket.

Parameters

data	The byte array to be sent.

Returns

A task representing the asynchronous operation. The task result is true if the data was sent successfully; otherwise, false.

Exceptions

ArgumentNullException

Thrown when the input data is null.

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SetRecvTimeout()

void xeno_rat_server.SocketHandler.SetRecvTimeout ( int ms )

inline

Sets the receive timeout for the socket.

Parameters

ms	The receive timeout value in milliseconds.

This method sets the receive timeout for the socket to the specified value in milliseconds.

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Member Data Documentation

doProtocolUpgrade

bool xeno_rat_server.SocketHandler.doProtocolUpgrade = false

private

EncryptionKey

byte [] xeno_rat_server.SocketHandler.EncryptionKey

sock

Socket xeno_rat_server.SocketHandler.sock

socktimeout

int xeno_rat_server.SocketHandler.socktimeout = 0

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The documentation for this class was generated from the following file:

• /Users/sumansaurabh/Documents/my-startup/xeno-rat/xeno rat server/SocketHandler.cs