import { encrypt50, decrypt50 } from './crypto'; /** * 4.0 行情报文协议(Len >= 15 byte，大端字节序) * Header byte 1 包头 0xFF * Length UInt32 4 长度 * mainClassNumber byte 1 大类号 * subClassNumber UInt16 2 小类号 * SerialNumber UInt32 4 流水号 * Mode byte 1 内容类型（0:ProtoBuff; 1:Json; 2:Zip+ProtoBuff） * Version byte 1 版本号 * Content byte[] n 数据体 心跳数据体长度为0，目前不对4.0（行情）报文进行加解密 * End byte 1 包尾 0x0 */ export class Package40 { /** 包头 */ header = 0xff; /** 包长度 */ packageLength = 0; /** 大类（服务端会自动变成回复的大类号） */ mainClassNumber = 0; /** 小类 */ subClassNumber = 0; /** 流水号 */ serialNumber = 0; /** 内容类型 */ mode = 0; /** 版本号 */ version = 0; /** 数据体 */ content?: Uint8Array; /** 包尾 */ end = 0x0; /** * 构造函数，把报文字节流装箱成报文对象 */ constructor(contentOrNumber: number | Uint8Array, content?: Uint8Array) { if (contentOrNumber instanceof Uint8Array) { // 接收信息装箱 if (contentOrNumber.length < 15) return; this.header = contentOrNumber[0]; this.packageLength = new DataView(new Uint8Array(contentOrNumber.subarray(1, 5)).buffer).getUint32(0, false); this.mainClassNumber = contentOrNumber[5]; this.subClassNumber = new DataView(new Uint8Array(contentOrNumber.subarray(6, 8)).buffer).getUint16(0, false); this.serialNumber = new DataView(new Uint8Array(contentOrNumber.subarray(8, 12)).buffer).getUint32(0, false); this.mode = contentOrNumber[12]; this.version = contentOrNumber[13]; if (contentOrNumber.length > 15) { this.content = contentOrNumber.subarray(14, contentOrNumber.length - 1); } this.end = contentOrNumber[contentOrNumber.length - 1]; } else { // 发送信息装箱 this.mainClassNumber = contentOrNumber; this.content = content; } } /** * 获取可发送的包数据流 */ data(): Uint8Array { if (this.content) { this.packageLength = this.content.length + 15; } else { this.packageLength = 15; } const rst = new Uint8Array(this.packageLength); let pos = 0; // 包头 rst[pos] = this.header; pos++; // 包长度 let dataView = new DataView(new ArrayBuffer(4)); dataView.setUint32(0, this.packageLength, false); rst.set(new Uint8Array(dataView.buffer), pos); pos += 4; // 大类号 rst[pos] = this.mainClassNumber; pos++; // 小类号 dataView = new DataView(new ArrayBuffer(2)); dataView.setUint16(0, this.subClassNumber, false); rst.set(new Uint8Array(dataView.buffer), pos); pos += 2; // 流水号 dataView = new DataView(new ArrayBuffer(4)); dataView.setUint32(0, this.serialNumber, false); rst.set(new Uint8Array(dataView.buffer), pos); pos += 4; // 内容类型 rst[pos] = this.mode; pos++; // 版本号 rst[pos] = this.version; pos++; // 数据体 if (this.content) rst.set(this.content, pos); // 包尾 rst[this.packageLength - 1] = this.end; return rst; } } /** * 5.0 交易报文协议(Len >= 24 byte，小端字节序) * Header byte 1 包头 0xFF * Length UInt32 4 长度 * FunCode UInt32 4 功能码（0代表心跳） * SessionID UInt32 4 会话ID * Mode byte 1 内容类型（0：ProtoBuff；1：Json；2：Zip+ProtoBuff） * Version byte 1 版本号 * SerialNumber UInt32 4 流水号 * Content byte[] n 数据内容（心跳数据体长度为0） * CRC UInt32 4 检验和 头19个字节检验和 * End byte 1 包尾 0x0 */ export class Package50 { /** 包头 */ header = 0xff; /** 长度 */ packageLength = 0; /** 功能码（0代表心跳） */ funCode = 0; /** 会话ID */ sessionID = 0; /** 内容类型（0：ProtoBuff；1：Json；2：Zip+ProtoBuff） */ mode = 0; /** 版本号 */ version = 0; /** 流水号 */ serialNumber = 0; /** 数据内容（心跳数据体长度为0） */ content?: Uint8Array; /** 检验和 */ crc = 0; /** 包尾 */ end = 0; constructor(funCodeOrNumber: number | Uint8Array, content?: Uint8Array) { if (funCodeOrNumber instanceof Uint8Array) { // 接收信息装箱 if (funCodeOrNumber.length < 24) return; // 先尝试对数据体进行解密 let decryptData: Uint8Array | null = null; if (funCodeOrNumber.length > 24) { const content = funCodeOrNumber.subarray(19, funCodeOrNumber.length - 4 - 1); const encryptData = content.subarray(4, content.length - 8); const size = new DataView(new Uint8Array(content.subarray(0, 4)).buffer).getUint32(0, true); decryptData = decrypt50(encryptData, size); } // 长度 this.packageLength = new DataView(new Uint8Array(funCodeOrNumber.subarray(1, 5)).buffer).getUint32(0, true); // 功能码 this.funCode = new DataView(new Uint8Array(funCodeOrNumber.subarray(5, 9)).buffer).getUint32(0, true); // 流水号 this.serialNumber = new DataView(new Uint8Array(funCodeOrNumber.subarray(15, 19)).buffer).getUint32(0, true); // 内容 if (decryptData) { this.content = decryptData; } } else { // 发送信息装箱 this.funCode = funCodeOrNumber; this.content = content; } } data(): Uint8Array { // 先尝试加密内容 let encryptData: Uint8Array | null = null; if (this.content) { encryptData = encrypt50(this.content); } // 重新计算整包长度 this.packageLength = 24; if (encryptData) { this.packageLength = 19 + encryptData.length + 5; } const rst = new Uint8Array(this.packageLength); let pos = 0; // 报文头 rst[pos] = this.header; pos++; // 长度 let dataView = new DataView(new ArrayBuffer(4)); dataView.setUint32(0, this.packageLength, true); rst.set(new Uint8Array(dataView.buffer), pos); pos += 4; // 功能码 dataView = new DataView(new ArrayBuffer(4)); dataView.setUint32(0, this.funCode, true); rst.set(new Uint8Array(dataView.buffer), pos); pos += 4; // 会话ID dataView = new DataView(new ArrayBuffer(4)); dataView.setUint32(0, this.sessionID, true); rst.set(new Uint8Array(dataView.buffer), pos); pos += 4; // 内容类型 rst[pos] = 0x0; pos++; // 版本号 rst[pos] = 0x0; pos++; // 流水号 dataView = new DataView(new ArrayBuffer(4)); dataView.setUint32(0, this.serialNumber, true); rst.set(new Uint8Array(dataView.buffer), pos); pos += 4; // 报文内容 if (encryptData) { rst.set(encryptData, pos); pos += encryptData.length; } // 校验和 const crcByte = rst.subarray(0, 19); // 复制报文头，以便于校验和计算 dataView = new DataView(new ArrayBuffer(4)); dataView.setUint32(0, this.getCRC32(crcByte), true); rst.set(new Uint8Array(dataView.buffer), pos); // 包尾 rst[this.packageLength - 1] = this.end; return rst; } /** * 计算检验和 * @param crcByte 目标数据 */ getCRC32(crcByte: Uint8Array) { const table = [ 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d, ]; let crc = 0xffffffff; for (let i = 0; i < crcByte.length; i++) { crc = (crc >>> 8) ^ table[(crc ^ crcByte[i]) & 0xff]; } crc = crc ^ 0xffffffff; return crc; } }