import Parser = require ( 'binopsy' ) ; import { Socket } from 'net' ; const crc8array = [ 0x00 , 0x07 , 0x0E , 0x09 , 0x1C , 0x1B , 0x12 , 0x15 , 0x38 , 0x3F , 0x36 , 0x31 , 0x24 , 0x23 , 0x2A , 0x2D , 0x70 , 0x77 , 0x7E , 0x79 , 0x6C , 0x6B , 0x62 , 0x65 , 0x48 , 0x4F , 0x46 , 0x41 , 0x54 , 0x53 , 0x5A , 0x5D , 0xE0 , 0xE7 , 0xEE , 0xE9 , 0xFC , 0xFB , 0xF2 , 0xF5 , 0xD8 , 0xDF , 0xD6 , 0xD1 , 0xC4 , 0xC3 , 0xCA , 0xCD , 0x90 , 0x97 , 0x9E , 0x99 , 0x8C , 0x8B , 0x82 , 0x85 , 0xA8 , 0xAF , 0xA6 , 0xA1 , 0xB4 , 0xB3 , 0xBA , 0xBD , 0xC7 , 0xC0 , 0xC9 , 0xCE , 0xDB , 0xDC , 0xD5 , 0xD2 , 0xFF , 0xF8 , 0xF1 , 0xF6 , 0xE3 , 0xE4 , 0xED , 0xEA , 0xB7 , 0xB0 , 0xB9 , 0xBE , 0xAB , 0xAC , 0xA5 , 0xA2 , 0x8F , 0x88 , 0x81 , 0x86 , 0x93 , 0x94 , 0x9D , 0x9A , 0x27 , 0x20 , 0x29 , 0x2E , 0x3B , 0x3C , 0x35 , 0x32 , 0x1F , 0x18 , 0x11 , 0x16 , 0x03 , 0x04 , 0x0D , 0x0A , 0x57 , 0x50 , 0x59 , 0x5E , 0x4B , 0x4C , 0x45 , 0x42 , 0x6F , 0x68 , 0x61 , 0x66 , 0x73 , 0x74 , 0x7D , 0x7A , 0x89 , 0x8E , 0x87 , 0x80 , 0x95 , 0x92 , 0x9B , 0x9C , 0xB1 , 0xB6 , 0xBF , 0xB8 , 0xAD , 0xAA , 0xA3 , 0xA4 , 0xF9 , 0xFE , 0xF7 , 0xF0 , 0xE5 , 0xE2 , 0xEB , 0xEC , 0xC1 , 0xC6 , 0xCF , 0xC8 , 0xDD , 0xDA , 0xD3 , 0xD4 , 0x69 , 0x6E , 0x67 , 0x60 , 0x75 , 0x72 , 0x7B , 0x7C , 0x51 , 0x56 , 0x5F , 0x58 , 0x4D , 0x4A , 0x43 , 0x44 , 0x19 , 0x1E , 0x17 , 0x10 , 0x05 , 0x02 , 0x0B , 0x0C , 0x21 , 0x26 , 0x2F , 0x28 , 0x3D , 0x3A , 0x33 , 0x34 , 0x4E , 0x49 , 0x40 , 0x47 , 0x52 , 0x55 , 0x5C , 0x5B , 0x76 , 0x71 , 0x78 , 0x7F , 0x6A , 0x6D , 0x64 , 0x63 , 0x3E , 0x39 , 0x30 , 0x37 , 0x22 , 0x25 , 0x2C , 0x2B , 0x06 , 0x01 , 0x08 , 0x0F , 0x1A , 0x1D , 0x14 , 0x13 , 0xAE , 0xA9 , 0xA0 , 0xA7 , 0xB2 , 0xB5 , 0xBC , 0xBB , 0x96 , 0x91 , 0x98 , 0x9F , 0x8A , 0x8D , 0x84 , 0x83 , 0xDE , 0xD9 , 0xD0 , 0xD7 , 0xC2 , 0xC5 , 0xCC , 0xCB , 0xE6 , 0xE1 , 0xE8 , 0xEF , 0xFA , 0xFD , 0xF4 , 0xF3 ] ; export interface ProtocolHeader { signature : number ; command : number ; length : number ; } export class Protocol { public static readonly SUPPORTED_MAJOR = 1 ; public static readonly SUPPORTED_MINIOR = 1 ; public static readonly SA_HEADER_PARSER = new Parser ( ) . endianess ( 'big' ) . uint16 ( 'signature' ) . uint8 ( 'command' ) . uint16 ( 'length' ) ; public static readonly SCMD_ADDDEVICE_PARSER = new Parser ( ) . endianess ( 'big' ) . string ( 'serialNumber' , { length : 20 } ) . uint16 ( 'deviceId' ) ; public static readonly SCMD_ADDDEVICE2_PARSER = new Parser ( ) . endianess ( 'big' ) . string ( 'serialNumber' , { length : 20 } ) . uint16 ( 'deviceId' ) . uint8 ( 'keysTotal' ) . uint8 ( 'keysPerRow' ) ; public static readonly SCMD_REMOVEDEVICE_PARSER = new Parser ( ) . endianess ( 'big' ) . uint16 ( 'deviceId' ) ; public static readonly SCMD_VERSION_PARSER = new Parser ( ) . endianess ( 'big' ) . uint8 ( 'versionMajor' ) . uint8 ( 'versionMinior' ) ; public static readonly SCMD_DRAW7272_PARSER = new Parser ( ) . endianess ( 'big' ) . uint16 ( 'deviceId' ) . uint8 ( 'keyIndex' ) . buffer ( 'image' , { length : 15552 } ) ; public static readonly SCMD_BUTTON_PARSER = new Parser ( ) . endianess ( 'big' ) . uint16 ( 'deviceId' ) . uint8 ( 'keyIndex' ) . uint8 ( 'state' ) ; public static readonly SCMD_BRIGHTNESS_PARSER = new Parser ( ) . endianess ( 'big' ) . uint16 ( 'deviceId' ) . uint8 ( 'percent' ) ; public static readonly SCMD_PING = 0x01 ; public static readonly SCMD_PONG = 0x02 ; public static readonly SCMD_VERSION = 0x03 ; public static readonly SCMD_ADDDEVICE = 0x10 ; public static readonly SCMD_REMOVEDEVICE = 0x11 ; public static readonly SCMD_ADDDEVICE2 = 0x12 ; public static readonly SCMD_BUTTON = 0x20 ; public static readonly SCMD_DRAW7272 = 0x30 ; public static readonly SCMD_BRIGHTNESS = 0x31 ; public static calcCRC ( buffer ) { let crc = 0 ; for ( let i = 0 ; i < buffer . length ; ++ i ) { crc = crc8array [ crc ^ buffer [ i ] ] ; } return crc ; } public static readHeader ( buffer ) { if ( buffer . length < 5 ) return false ; if ( buffer . readUInt16BE ( 0 ) !== 0x5a7e ) { return - 1 ; } return this . SA_HEADER_PARSER . parse ( buffer ) ; } public static sendPacket ( socket , command , data ) { if ( data === undefined ) { data = Buffer . alloc ( 0 ) ; } const buffer = Buffer . alloc ( 5 + data . length + 1 ) ; const header = { signature : 0x5a7e , command : command , length : data . length } ; this . SA_HEADER_PARSER . serialize ( header , buffer ) ; data . copy ( buffer , 5 ) ; const crc = this . calcCRC ( data ) ; buffer [ 5 + data . length ] = crc ; socket . write ( buffer ) ; } }