采用新结构：Action*.js 从 node.server 中删除，集中存放于本库。
这样消除了同一份代码出现在两处的不良结构，避免了同步的困难。
当 node.server 需要临时修改 ActionXxx.js 时，只要在 server.js 里临时 require('../tic.action').ActionXxx 即可。一处修改，到处可用。
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luk.lu
203
ActionMultisig.js
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203
ActionMultisig.js
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const Action = require('./Action.js')
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/** ****************** Public of instance ********************/
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const DAD = module.exports = function ActionMultisig (prop) {
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this._class = this.constructor.name
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this.setProp(prop) // 没有定义 DAD.prototype._model，因此继承了上级Action.prototype._model，因此通过this.setProp，继承了上级Action定义的实例自有数据。另一个方案是，调用 Action.call(this, prop)
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this.type = this.constructor.name
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}
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DAD.__proto__ = Action
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// DAD._table=DAD.name // 注释掉，从而继承父类Action的数据库表格名
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const MOM = DAD.prototype
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MOM.__proto__ = Action.prototype
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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', 'json'] }) // 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 = wo.Crypto.sign(json, seckey)
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return this
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}
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MOM.verifySig = function () {
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let json = this.getJson(({ exclude: ['hash', 'blockHash', 'actorSignature', 'json'] }))
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let res = wo.Crypto.verify(json, this.actorSignature, this.actorPubkey)
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return res
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}
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MOM.verifyAddress = function () {
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return this.actorAddress === wo.Crypto.pubkey2address(this.actorPubkey)
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}
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MOM.hashMe = function () {
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this.hash = wo.Crypto.hash(this.getJson({ exclude: ['hash', 'blockHash', 'json'] })) // 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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MOM.verifyHash = function () {
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return this.hash === wo.Crypto.hash(this.getJson({ exclude: ['hash', 'blockHash', 'json'] }))
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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 = wo.Crypto.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.checkMultiSig = function (account) {
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let json = this.getJson(({ exclude: ['hash', 'blockHash', 'actorSignature', 'json'] }))
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let sigers = Object.keys(this.json) // 公钥列表
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// 交易发起人的签名在prepare的verifySig里已经检查过合法性，
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if (account.multiSignatures.keysgroup.indexOf(this.actorPubkey) === -1) {
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let M = 1 // 如果不在keysgroup里，可以把交易发起人算一个有效的签名，因此M从1算起
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} else {
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let M = 0 // 如果发起人已经在keysgroup里则从0算起
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}
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for (let i of sigers) // 该交易内已签名的每一个公钥
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{
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if (account.multiSignatures.keysgroup.indexOf(i) !== -1 && wo.Crypto.verify(json, this.json[i], i)) {
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M++
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}
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}
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return M >= account.multiSignatures.min
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}
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/** ****************** Shared by instances ********************/
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/*
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1.创建多重签名账户
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{
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"ActionMultisig":{
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"actorPubkey": "actorPubkey",
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"actorAddress": "actorAddress",
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"actorSignature":"actorSignature",
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"fee":1,
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"json":{
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act: "create",
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min: 2,
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lifetime: 10, //暂时无用，因为每个交易的挂起时间需求可能不同
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keysgroup:[
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pubkey_a,
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pubkey_b,
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...
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pubkey_n
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]
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}
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}
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}
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2.多重签名账户交易
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step1:发起一个多重签名账户的交易。该交易只是在缓存里，为了给多重签名账户的控制者们提供真正要写入区块链的源Action数据
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{
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"ActionMultisig":{
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"amount": 100,
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"fee": 1,
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"actorPubkey": "actorPubkey",
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"actorAddress": "actorAddress",
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"actorSignature":"actorSignature",
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"toAddress": "toAddress",
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"json":{
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act: "createTransfer",
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lifetime: 10,
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}
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}
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}
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step2:所有人签名
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{
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"ActionMultisig":{
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"amount": 100,
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"fee": 1,
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"actorPubkey": "actorPubkey",
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"actorAddress": "actorAddress",
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"actorSignature":"actorSignature",
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"toAddress": "toAddress",
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"json":{
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act: 'addSig',
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signature: 'signature',
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}
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}
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}
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step3:发起人申请执行
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{
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"ActionMultisig":{
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"amount": 100,
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"fee": 1,
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"actorPubkey": "actorPubkey",
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"actorAddress": "actorAddress",
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"actorSignature":"actorSignature",
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"toAddress": "toAddress",
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"json":{
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act:'emitTransfer'
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'pubkey1':'sig1',
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'pubkey2':'sig2',
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......
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'pubkeyn':'sign',
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}
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}
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}
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*/
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MOM.validateMe = async function () {
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if (this.json.act === 'createTransfer') // 创建挂起的多重签名事务
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{
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DAD.pendingPool[this.hash] = this
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return false
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} else if (this.json.act === 'addSig') // 签名者签名
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{
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DAD.pendingPool[this.hash].json[this.actorPubkey] = this.json.signature
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return false
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} else {
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return wo.Crypto.isAddress(this.toAddress) &&
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this.fee >= wo.Config.MIN_FEE_ActionTransfer &&
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(await wo.Store.getBalance(this.actorAddress)) >= this.amount + this.fee && // Todo:引入缓存账户
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this.toAddress != this.actorAddress
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}
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}
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MOM.executeMe = async function () {
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switch (this.json.act) {
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// 多重签名账户注册
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case 'sign':
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{
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let actor = await wo.Account.getOne({ Account: { address: this.actorAddress } })
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if (actor && actor.type !== 'multisig') {
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// 检查账户类型，只有不是多重签名账户的才可以执行
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// todo:类型检查，安全操作
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await actor.setMe({ Account: { multiSignatures: {
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min: this.json.min,
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ttl: this.json.ttl, // 该账户交易的最大挂起时间
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keysgroup: this.json.keysgroup
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} },
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cond: { address: actor.address } })
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}
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return this
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}
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// 多重签名账户执行转账
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case 'emitTransfer':
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{
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let sender = await wo.Account.getOne({ Account: { address: this.actorAddress } })
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if (sender && this.checkMultiSig(sender) && this.toAddress != this.actorAddress && sender.balance >= this.amount + this.fee) {
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await sender.setMe({ Account: { balance: sender.balance - this.amount - this.fee }, cond: { address: sender.address } })
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let getter = await wo.Account.getOne({ Account: { address: this.toAddress } })
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if (getter) {
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await getter.setMe({ Account: { balance: getter.balance + this.amount }, cond: { address: getter.address } })
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} else {
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await wo.Account.addOne({ Account: { address: this.toAddress } })
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}
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// mylog.info('Excecuted action='+JSON.stringify(this))
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delete DAD.pendingPool[this.hash]
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return this
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}
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// mylog.info('balance('+sender.address+')='+sender.balance+' is less than '+this.amount+', 无法转账')
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return null
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}
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}
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}
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DAD.pendingPool = {} // 存放所有待签名的多重签名账户交易
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/* 为挂起状态的多重签名交易提供查询服务 */
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DAD.api.pendingAction = function (option) {
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return DAD.pendingPool[option.id]
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}
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