145 lines
5.6 KiB
JavaScript
145 lines
5.6 KiB
JavaScript
var Ling = require('fon.ling')
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var Ticrypto = require('tic.crypto')
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/** ****************** Public of instance ********************/
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const DAD = module.exports = function Action (prop) {
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this._class = this.constructor.name
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this.setProp(prop)
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}
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DAD.__proto__ = Ling
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DAD._table = DAD.name
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const MOM = DAD.prototype
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MOM.__proto__ = Ling.prototype
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/** ****************** Shared by instances ********************/
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MOM._tablekey = 'hash'
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MOM._model = {
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hash: { default: undefined, sqlite: 'TEXT UNIQUE', mysql: 'VARCHAR(64) PRIMARY KEY' }, // 不纳入签名和哈希
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version: { default: 0, sqlite: 'INTEGER' },
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type: { default: 'Action', sqlite: 'TEXT', mysql: 'VARCHAR(100)' }, // 是否放在 assets里更好？这里该放action自己的version
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blockHash: { default: undefined, sqlite: 'TEXT', mysql: 'VARCHAR(64)' }, // 不纳入签名和哈希。只为了方便查找
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timestamp: { default: undefined, sqlite: 'TEXT', mysql: 'CHAR(24)' },
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actorPubkey: { default: undefined, sqlite: 'TEXT', mysql: 'BINARY(32)' },
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actorAddress: { default: undefined, sqlite: 'TEXT', mysql: 'VARCHAR(50)' },
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actorSignature: { default: undefined, sqlite: 'TEXT', mysql: 'BINARY(64)' }, // 不纳入签名，纳入哈希
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toAddress: { default: undefined, sqlite: 'TEXT', mysql: 'VARCHAR(50)' },
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amount: { default: 0, sqlite: 'NUMERIC', mysql: 'BIGINT' },
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fee: { default: 0, sqlite: 'NUMERIC', mysql: 'BIGINT' },
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message: { default: undefined, sqlite: 'TEXT', mysql: 'VARCHAR(256)' },
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dataIndex: { default: undefined, sqlite: 'TEXT', mysql: 'VARCHAR(50)' }, // 用于索引json中存储数据，
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method: { default: undefined, sqlite: 'TEXT' },
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data: { default: undefined, sqlite: 'TEXT' }
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}
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MOM.packMe = function (keypair) { // 由前端调用，后台不创建
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this.actorPubkey = keypair.pubkey
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this.actorAddress = Ticrypto.pubkey2address(keypair.pubkey)
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this.timestamp = new Date()
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this.signMe(keypair.seckey)
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this.hashMe()
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return this
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}
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MOM.signMe = function (seckey) { // 由前端调用，后台不该进行签名
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let json = this.getJson({ exclude: ['hash', 'blockHash', 'actorSignature'] }) // 是前端用户发起事务时签字，这时候还不知道进入哪个区块，所以不能计入blockHash
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this.actorSignature = Ticrypto.sign(json, seckey)
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return this
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}
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MOM.hashMe = function () {
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this.hash = Ticrypto.hash(this.getJson({ exclude: ['hash', 'blockHash'] })) // block.hash 受到所包含的actionList影响，所以action不能受blockHash影响，否则循环了
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return this
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}
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DAD.getJson = function (action, option = {}) {
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let data = {}
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let sortedKey = Object.keys(DAD.prototype._model).sort()
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for (let exkey of option.exclude) { sortedKey.splice(sortedKey.indexOf(exkey), 1) }
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for (let key of sortedKey) { // 忽略一些不需要签名的属性
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data[key] = action[key]
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}
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let json = JSON.stringify(data)
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return json
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}
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DAD.verifySig = function (action) {
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let json = DAD.getJson(action, { exclude: ['hash', 'blockHash', 'actorSignature'] })
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let res = Ticrypto.verify(json, action.actorSignature, action.actorPubkey)
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return res
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}
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DAD.verifyAddress = function (action) {
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return action.actorAddress === Ticrypto.pubkey2address(action.actorPubkey)
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}
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DAD.verifyHash = function (action) {
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return action.hash === Ticrypto.hash(DAD.getJson(action, { exclude: ['hash', 'blockHash'] }))
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}
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DAD.execute = function () { // 子类应当覆盖本方法。把action的影响，汇总登记到其他表格（用于辅助的、索引的表格），方便快速索引、处理。每种事务类型都要重定义这个方法。
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// save to account or other tables
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return this
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}
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DAD.calculateFee = function () {
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return 1000
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}
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/**
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* 获取一批交易，在出块时调用。调用actionPool的内容被深拷贝到currentActionPool后自动清空。
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* 所以在一次出块期间只能调用一次
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*/
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DAD.getActionBatch = function () {
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let actionBatch = {
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actionPool: JSON.parse(JSON.stringify(DAD.actionPool)), // deep copy
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totalAmount: DAD.actionPoolInfo.totalAmount,
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totalFee: DAD.actionPoolInfo.totalFee
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}
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DAD.actionPool = {}
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DAD.actionPoolInfo = {
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totalAmount: 0,
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totalFee: 0
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}
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return actionBatch
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}
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/** ********************* Public of class *******************/
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DAD.api = {}
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DAD.api.getAction = async function (option) {
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return await DAD.getOne(option)
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}
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DAD.api.getActionList = async function (option) {
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return await DAD.getAll(option)
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}
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DAD.api.prepare = async function (option) {
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// 前端发来action数据，进行初步检查（不检查是否可执行--这和事务类型、执行顺序有关，只检查格式是否有效--这是所有事务通用的规范）后放入缓冲池。
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if (option && option.Action && option.Action.type && option.Action.hash && !DAD.actionPool[option.Action.hash]) {
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if (DAD.verifyAddress(option.Action) &&
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DAD.verifySig(option.Action) &&
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DAD.verifyHash(option.Action) &&
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!DAD.actionPool[option.Action.hash] &&
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(await wo[option.Action.type].validate(option.Action))
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) {
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DAD.actionPool[option.Action.hash] = option.Action
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DAD.actionPoolInfo.totalAmount += option.Action.amount || 0
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DAD.actionPoolInfo.totalFee += option.Action.fee || 0
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wo.Node.broadcast('/Action/prepare', option)
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return option.Action
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}
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}
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return null // 非法的交易数据
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}
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/** ******************** Private in class *******************/
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DAD.actionPool = {} // 交易池，在执行getActionBatch时被清空
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// DAD.currentActionPool = {} // 仅包含0~40秒的交易,40~59秒的交易将被堆积到actionPool。
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DAD.actionPoolInfo = {
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totalAmount: 0,
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totalFee: 0
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}
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