client

package
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 Go to latest Published: Oct 12, 2020 License: Apache-2.0 Imports: 12 Imported by: 0

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Constants

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Variables

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Functions

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Types

type ButtonMask 

type ButtonMask uint8

ButtonMask represents a mask of pointer presses/releases. 

const (
	ButtonLeft ButtonMask = 1 << iota
	ButtonMiddle
	ButtonRight
	Button4
	Button5
	Button6
	Button7
	Button8
)

All available button mask components.

type ClientAuth 

type ClientAuth interface {
	// SecurityType returns the byte identifier sent by the server to
	// identify this authentication scheme.
	SecurityType() uint8

	// Handshake is called when the authentication handshake should be
	// performed, as part of the general RFB handshake. (see 7.2.1)
	Handshake(io.ReadWriteCloser) error
}

A ClientAuth implements a method of authenticating with a remote server.

type ClientAuthNone 

type ClientAuthNone byte

ClientAuthNone is the "none" authentication. See 7.2.1

func (*ClientAuthNone) Handshake 

func (*ClientAuthNone) Handshake(closer io.ReadWriteCloser) error

func (*ClientAuthNone) SecurityType 

func (*ClientAuthNone) SecurityType() uint8

type ClientConfig 

type ClientConfig struct {
	// A slice of ClientAuth methods. Only the first instance that is
	// suitable by the server will be used to authenticate.
	Auth []ClientAuth

	// Exclusive determines whether the connection is shared with other
	// clients. If true, then all other clients connected will be
	// disconnected when a connection is established to the VNC server.
	Exclusive bool

	// A slice of supported messages that can be read from the server.
	// This only needs to contain NEW server messages, and doesn't
	// need to explicitly contain the RFC-required messages.
	ServerMessages []common.ServerMessage
}

A ClientConfig structure is used to configure a ClientConn. After one has been passed to initialize a connection, it must not be modified.

type ClientConn 

type ClientConn struct {

	// If the pixel format uses a color map, then this is the color
	// map that is used. This should not be modified directly, since
	// the data comes from the server.
	ColorMap common.ColorMap

	// Encodings supported by the client. This should not be modified
	// directly. Instead, SetEncodings should be used.
	Encs []common.IEncoding

	// Width of the frame buffer in pixels, sent from the server.
	FrameBufferWidth uint16

	// Height of the frame buffer in pixels, sent from the server.
	FrameBufferHeight uint16

	// Name associated with the desktop, sent from the server.
	DesktopName string

	// The pixel format associated with the connection. This shouldn't
	// be modified. If you wish to set a new pixel format, use the
	// SetPixelFormat method.
	PixelFormat common.PixelFormat

	Listeners *common.MultiListener
	// contains filtered or unexported fields
}

func NewClientConn 

func NewClientConn(c net.Conn, cfg *ClientConfig) (*ClientConn, error)

func (*ClientConn) Close 

func (c *ClientConn) Close() error

func (*ClientConn) Connect 

func (conn *ClientConn) Connect() error

func (*ClientConn) CurrentPixelFormat 

func (c *ClientConn) CurrentPixelFormat() *common.PixelFormat

func (*ClientConn) CutText 

func (c *ClientConn) CutText(text string) error

CutText tells the server that the client has new text in its cut buffer. The text string MUST only contain Latin-1 characters. This encoding is compatible with Go's native string format, but can only use up to unicode.MaxLatin values.

See RFC 6143 Section 7.5.6

func (*ClientConn) Encodings 

func (c *ClientConn) Encodings() []common.IEncoding

func (*ClientConn) FramebufferUpdateRequest 

func (c *ClientConn) FramebufferUpdateRequest(incremental bool, x, y, width, height uint16) error

Requests a framebuffer update from the server. There may be an indefinite time between the request and the actual framebuffer update being received.

See RFC 6143 Section 7.5.3

func (*ClientConn) KeyEvent 

func (c *ClientConn) KeyEvent(keysym uint32, down bool) error

KeyEvent indiciates a key press or release and sends it to the server. The key is indicated using the X Window System "keysym" value. Use Google to find a reference of these values. To simulate a key press, you must send a key with both a down event, and a non-down event.

See 7.5.4.

func (*ClientConn) PointerEvent 

func (c *ClientConn) PointerEvent(mask ButtonMask, x, y uint16) error

PointerEvent indicates that pointer movement or a pointer button press or release.

The mask is a bitwise mask of various ButtonMask values. When a button is set, it is pressed, when it is unset, it is released.

See RFC 6143 Section 7.5.5

func (*ClientConn) Read 

func (c *ClientConn) Read(bytes []byte) (n int, err error)

func (*ClientConn) SetEncodings 

func (c *ClientConn) SetEncodings(encs []common.IEncoding) error

SetEncodings sets the encoding types in which the pixel data can be sent from the server. After calling this method, the encs slice given should not be modified.

See RFC 6143 Section 7.5.2

func (*ClientConn) SetPixelFormat 

func (c *ClientConn) SetPixelFormat(format *common.PixelFormat) error

SetPixelFormat sets the format in which pixel values should be sent in FramebufferUpdate messages from the server.

See RFC 6143 Section 7.5.1

func (*ClientConn) Write 

func (c *ClientConn) Write(bytes []byte) (n int, err error)

type MsgBell 

type MsgBell byte

Bell signals that an audible bell should be made on the client.

See RFC 6143 Section 7.6.3

func (*MsgBell) CopyTo 

func (fbm *MsgBell) CopyTo(r io.Reader, w io.Writer, c common.IClientConn) error

func (*MsgBell) Read 

func (m *MsgBell) Read(c common.IClientConn, r *common.RfbReadHelper) (common.ServerMessage, error)

func (*MsgBell) String 

func (m *MsgBell) String() string

func (*MsgBell) Type 

func (*MsgBell) Type() uint8

type MsgFramebufferUpdate 

type MsgFramebufferUpdate struct {
	Rectangles []common.Rectangle
}

MsgFramebufferUpdate consists of a sequence of rectangles of pixel data that the client should put into its framebuffer.

func (*MsgFramebufferUpdate) CopyTo 

func (fbm *MsgFramebufferUpdate) CopyTo(r io.Reader, w io.Writer, c common.IClientConn) error

func (*MsgFramebufferUpdate) Read 

func (fbm *MsgFramebufferUpdate) Read(c common.IClientConn, r *common.RfbReadHelper) (common.ServerMessage, error)

func (*MsgFramebufferUpdate) String 

func (m *MsgFramebufferUpdate) String() string

func (*MsgFramebufferUpdate) Type 

func (*MsgFramebufferUpdate) Type() uint8

type MsgServerCutText 

type MsgServerCutText struct {
	Text string
}

MsgServerCutText indicates the server has new text in the cut buffer.

See RFC 6143 Section 7.6.4

func (*MsgServerCutText) CopyTo 

func (fbm *MsgServerCutText) CopyTo(r io.Reader, w io.Writer, c common.IClientConn) error

func (*MsgServerCutText) Read 

func (m *MsgServerCutText) Read(conn common.IClientConn, r *common.RfbReadHelper) (common.ServerMessage, error)

func (*MsgServerCutText) String 

func (m *MsgServerCutText) String() string

func (*MsgServerCutText) Type 

func (*MsgServerCutText) Type() uint8

type MsgServerFence 

type MsgServerFence byte

func (*MsgServerFence) CopyTo 

func (fbm *MsgServerFence) CopyTo(r io.Reader, w io.Writer, c common.IClientConn) error

func (*MsgServerFence) Read 

func (sf *MsgServerFence) Read(info common.IClientConn, c *common.RfbReadHelper) (common.ServerMessage, error)

func (*MsgServerFence) String 

func (m *MsgServerFence) String() string

func (*MsgServerFence) Type 

func (*MsgServerFence) Type() uint8

type MsgSetColorMapEntries 

type MsgSetColorMapEntries struct {
	FirstColor uint16
	Colors     []common.Color
}

MsgSetColorMapEntries is sent by the server to set values into the color map. This message will automatically update the color map for the associated connection, but contains the color change data if the consumer wants to read it.

See RFC 6143 Section 7.6.2

func (*MsgSetColorMapEntries) CopyTo 

func (fbm *MsgSetColorMapEntries) CopyTo(r io.Reader, w io.Writer, c common.IClientConn) error

func (*MsgSetColorMapEntries) Read 

func (m *MsgSetColorMapEntries) Read(c common.IClientConn, r *common.RfbReadHelper) (common.ServerMessage, error)

func (*MsgSetColorMapEntries) String 

func (m *MsgSetColorMapEntries) String() string

func (*MsgSetColorMapEntries) Type 

func (*MsgSetColorMapEntries) Type() uint8

type PasswordAuth 

type PasswordAuth struct {
	Password string
}

PasswordAuth is VNC authentication, 7.2.2

func (*PasswordAuth) Handshake 

func (p *PasswordAuth) Handshake(c io.ReadWriteCloser) error

func (*PasswordAuth) SecurityType 

func (p *PasswordAuth) SecurityType() uint8

type WriteTo 

type WriteTo struct {
	Writer io.Writer
	Name   string
}

func (*WriteTo) Consume 

func (p *WriteTo) Consume(seg *common.RfbSegment) error

Source Files

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