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12x 218x 6x 7x 2x 7x 19x 9x 11x 5x 1x 1x 21x 21x 20x 21x 5x 5x 4x 5x 1x 1x 3x 1x 1x 1x 1x 1x 1x 1x 1x 1x 16x 16x 16x 14x 16x 16x 16x 29x 29x 1x 28x 28x 28x 28x 28x 14x 28x 28x 26x 26x 2x 2x 1x 1x 1x 1x 3x 12x 12x 12x 12x 12x 12x 12x 12x 11x 1x 1x 10x 11x 11x 2x 11x 4x 4x 4x 4x 11x 1x 11x 1x | import { Account } from "./account"
import { EventEmitter } from "events"
import { OrderBook } from "./orderbook"
import { Request } from "./request"
import { Server } from "./server"
import { Transaction } from "@swtc/transaction"
import LRU from "lru-cache"
import sha1 from "sha1"
import {
IRemoteOptions,
IRequestLedgerOptions,
IRequestAccountsOptions,
IRequestTxOptions,
IRequestAccountInfoOptions,
IRequestAccountTumsOptions,
IRequestAccountRelationsOptions,
IRequestAccountOffersOptions,
IRequestAccountTxOptions,
IRequestOrderBookOptions,
IRequestBrokerageOptions,
IRequestSignerListOptions
} from "./types"
import {
// IMarker,
// IAmount,
// ISwtcTxOptions,
IPaymentTxOptions,
IOfferCreateTxOptions,
IOfferCancelTxOptions,
IContractInitTxOptions,
IContractInvokeTxOptions,
IContractDeployTxOptions,
IContractCallTxOptions,
ISignTxOptions,
IAccountSetTxOptions,
IRelationTxOptions,
ISignerListTxOptions,
ISignFirstTxOptions,
ISignOtherTxOptions
} from "./types"
const Wallet = Transaction.Wallet
const utils = Transaction.utils
// var LEDGER_OPTIONS = ["closed", "header", "current"]
function getRelationType(type) {
switch (type) {
case "trust":
return 0
case "authorize":
return 1
case "freeze":
return 3
default:
return null
}
}
/**
* main handler for backend system
* one remote object one server, not many
* options onfiguration Parameters:
* {
* local_sign: false, // default sign tx in jingtumd
* server: 'wss://s.jingtum.com:5020', // only support one server
* }
* @param options
* @constructor
*/
class Remote extends EventEmitter {
public static Wallet: any = Wallet
public static Account = Account
public static OrderBook = OrderBook
public static Transaction: any = Transaction
public static utils = utils
public static XLIB = Wallet.config.XLIB || {}
public type
public readonly AbiCoder: any = null
public readonly Tum3: any = null
public readonly _token
public readonly _local_sign
protected _issuer
private _url: string = `ws://${Remote.XLIB.default_ws ||
"ws.swtclib.ca:5020"}`
private _url_failover: string = `ws://${Remote.XLIB.default_ws_failover ||
"ws-failover.swtclib.ca:5020"}`
private _server
private _status
private _requests
private _cache
private _paths
private _solidity: boolean = false
private _timeout: number = 20 * 1000
private _failover: boolean = false
constructor(options: IRemoteOptions = { local_sign: true }) {
super()
const _opts = options || {}
Iif (_opts.hasOwnProperty("timeout")) {
const timeout = Number(_opts.timeout)
this._timeout = timeout > 5 * 1000 ? timeout : 20 * 1000
}
this._local_sign = true
Iif (_opts.solidity) {
this._solidity = true
try {
this.AbiCoder = require("tum3-eth-abi").AbiCoder
this.Tum3 = require("swtc-tum3")
} catch (error) {
throw Error(
"install tum3-eth-abi and swtc-tum3 to enable solidity support"
)
}
}
if (!_opts.hasOwnProperty("server")) {
this._failover = true
} else {
Iif (typeof _opts.server !== "string") {
this.type = new TypeError("server config not supplied")
return this
}
this._url = _opts.server
}
Iif (_opts.hasOwnProperty("server_failover")) {
if (typeof _opts.server_failover !== "string") {
this.type = new TypeError("server_failover config not supplied")
return this
}
this._url_failover = _opts.server_failover
}
Iif (_opts.failover) {
this._failover = true
}
this._server = new Server(this, this._url)
this._status = {
ledger_index: 0
}
this._requests = {}
this._token = options.token || Wallet.token || "swt"
this._issuer =
options.issuer ||
Wallet.config.issuer ||
"jGa9J9TkqtBcUoHe2zqhVFFbgUVED6o9or"
this._cache = new LRU({
max: 100,
maxAge: 1000 * 60 * 5
}) // 100 size, 5 min
this._paths = new LRU({
max: 100,
maxAge: 1000 * 60 * 5
}) // 2100 size, 5 min
this.on("newListener", type => {
if (!this._server.isConnected()) return
if (type === "removeListener") return
if (type === "transactions") {
this.subscribe("transactions").submit()
}
if (type === "ledger_closed") {
this.subscribe("ledger").submit()
}
})
this.on("removeListener", type => {
if (!this._server.isConnected()) return
if (type === "transactions") {
this.unsubscribe("transactions").submit()
}
if (type === "ledger_closed") {
this.unsubscribe("ledger").submit()
}
})
}
// show instance basic configuration
public config() {
return {
_local_sign: this._local_sign,
_failover: this._failover,
_url: this._url,
_url_failover: this._url_failover,
_url_active: this._server._url,
_token: this._token,
_issuer: this._issuer,
_solidity: this._solidity,
_timeout: this._timeout
}
}
// makeCurrency and makeAmount
public makeCurrency(currency = this._token, issuer = this._issuer) {
return Wallet.makeCurrency(currency, issuer)
}
public makeAmount(value = 1, currency = this._token, issuer = this._issuer) {
return Wallet.makeAmount(value, currency, issuer)
}
/**
* connect first on every case
* callback(error, result)
* @param callback
* @returns {*}
*/
public connect(callback) {
if (!this._server) return callback("server not ready")
this._server.connect(callback)
}
public connectPromise() {
return new Promise((resolve, reject) => {
if (!this._server) return reject(new Error("server not ready"))
this._server
.connectPromise()
.then(result => resolve(result))
.catch(error => {
if (!this._failover) {
reject(error)
} else {
if (this._server._url === this._url) {
this._server = new Server(this, this._url_failover)
} else {
this._server = new Server(this, this._url)
}
this._server
.connectPromise()
.then(result_failover => resolve(result_failover))
.catch(error_failover => reject(error_failover))
}
})
})
}
/**
* disconnect manual, no reconnect
*/
public disconnect() {
if (!this._server) return
this._server.disconnect()
}
/**
* check is remote is connected to jingtumd
*/
public isConnected() {
return this._server.isConnected()
}
/**
* handle message from backend, and dispatch
* @param data
*/
public _handleMessage(e) {
let data
let try_again = false
try {
data = JSON.parse(e.data)
Iif (typeof data !== "object") return
switch (data.type) {
case "ledgerClosed":
this._handleLedgerClosed(data)
break
case "serverStatus":
this._handleServerStatus(data)
break
case "response":
this._handleResponse(data)
break
case "transaction":
this._handleTransaction(data)
break
case "path_find":
this._handlePathFind(data)
break
}
} catch (error) {
try_again = true
}
if (try_again) {
try {
data = JSON.parse(e)
Iif (typeof data !== "object") return
switch (data.type) {
case "ledgerClosed":
this._handleLedgerClosed(data)
break
case "serverStatus":
this._handleServerStatus(data)
break
case "response":
this._handleResponse(data)
break
case "transaction":
this._handleTransaction(data)
break
case "path_find":
this._handlePathFind(data)
break
}
} catch (error) {
try_again = false
}
}
}
/**
* request to server and backend
* @param command
* @param data
* @param filter
* @param callback
* @private
*/
public _submit(command, data, filter, callback: any) {
const req_id = this._server.sendMessage(command, data)
this._requests[req_id] = {
command,
data,
filter,
callback
}
}
// ---------------------- info request --------------------
/**
* request server info
* return version, ledger, state and node id
* no option is required
* @returns {Request}
*/
public requestServerInfo() {
return new Request(this, "server_info", data => {
return {
complete_ledgers: data.info.complete_ledgers,
ledger: data.info.validated_ledger.hash,
public_key: data.info.pubkey_node,
state: data.info.server_state,
peers: data.info.peers,
version: "skywelld-" + data.info.build_version
}
})
}
/**
* request peers info
* return version, ledger, state and node id
* no option is required
* @returns {Request}
*/
public requestPeers() {
return new Request(this, "peers", data => {
return data
})
}
/**
* request last closed ledger index and hash
* @returns {Request}
*/
public requestLedgerClosed() {
return new Request(this, "ledger_closed", data => {
return {
// fee_base: data.fee_base,
ledger_hash: data.ledger_hash,
ledger_index: data.ledger_index
// reserve_base: data.reserve_base,
// reserve_inc: data.reserve_base,
// txn_count: data.txn_count,
// validated: data.validated_ledgers
}
})
}
/**
* get one ledger info
* options parameters : {
* ledger_index: Number,
* ledger_hash: hash, string
* }
* if no options, return last closed ledger
* @param options
* @returns {Request}
*/
public requestLedger(options: IRequestLedgerOptions) {
// if (typeof options !== 'object') {
// return new Error('invalid options type');
// }
const cmd = "ledger"
let filter = true
const request = new Request(this, cmd, data => {
const ledger = data.ledger || data.closed.ledger
if (!filter) {
return ledger
}
return {
accepted: ledger.accepted,
ledger_hash: ledger.hash,
ledger_index: ledger.ledger_index,
parent_hash: ledger.parent_hash,
close_time: ledger.close_time_human,
total_coins: ledger.total_coins
}
})
if (options === null || typeof options !== "object") {
request.message.type = new Error("invalid options type")
return request
}
Iif (
options.ledger_index &&
!/^[1-9]\d{0,9}$/.test(String(options.ledger_index))
) {
// 支持0-10位数字查询
request.message.ledger_index = new Error("invalid ledger_index")
return request
}
if (options.ledger_index) {
request.message.ledger_index = Number(options.ledger_index)
}
if (utils.isValidHash(options.ledger_hash)) {
request.message.ledger_hash = options.ledger_hash
}
if ("full" in options && typeof options.full === "boolean") {
request.message.full = options.full
filter = false
}
if ("expand" in options && typeof options.expand === "boolean") {
request.message.expand = options.expand
filter = false
}
if (
"transactions" in options &&
typeof options.transactions === "boolean"
) {
request.message.transactions = options.transactions
filter = false
}
if ("accounts" in options && typeof options.accounts === "boolean") {
request.message.accounts = options.accounts
filter = false
}
return request
}
/*
* get all accounts at some ledger_index
*/
public requestAccounts(options: IRequestAccountsOptions) {
const request = new Request(this, "account_count")
if (options === null || typeof options !== "object") {
request.message.type = new Error("invalid options type")
return request
}
if (
options.ledger_index &&
!/^[1-9]\d{0,9}$/.test(String(options.ledger_index))
) {
// 支持0-10位数字查询
request.message.ledger_index = new Error("invalid ledger_index")
return request
}
if (options.ledger_index) {
request.message.ledger_index = Number(options.ledger_index)
}
if (utils.isValidHash(options.ledger_hash)) {
request.message.ledger_hash = options.ledger_hash
}
if (options.marker) {
request.message.marker = options.marker
}
return request
}
/**
* for tx command
* @param options
* options: {
* hash: tx hash, string
* }
* @returns {Request}
*/
public requestTx(options: IRequestTxOptions) {
const request = new Request(this, "tx")
if (options === null || typeof options !== "object") {
request.message.type = new Error("invalid options type")
return request
}
const hash = options.hash
if (!utils.isValidHash(hash)) {
request.message.hash = new Error("invalid tx hash")
return request
}
request.message.transaction = hash
return request
}
/**
* account info
* @param options, options:
* account(required): the query account
* ledger(option): specify ledger, ledger can be:
* ledger_index=xxx, ledger_hash=xxx, or ledger=closed|current|validated
* @returns {Request}
*/
public requestAccountInfo(options: IRequestAccountInfoOptions) {
const request = new Request(this)
if (options === null || typeof options !== "object") {
request.message.type = new Error("invalid options type")
return request
}
return this.__requestAccount("account_info", options, request)
}
/**
* account tums
* return account supports currency, including
* send currency and receive currency
* @param
* account(required): the query account
* ledger(option): specify ledger, ledger can be:
* ledger_index=xxx, ledger_hash=xxx, or ledger=closed|current|validated
* no limit
* @returns {Request}
*/
public requestAccountTums(options: IRequestAccountTumsOptions) {
const request = new Request(this)
if (options === null || typeof options !== "object") {
request.message.type = new Error("invalid options type")
return request
}
return this.__requestAccount("account_currencies", options, request)
}
/**
* account relations
* @param options
* type: relation type
* account(required): the query account
* ledger(option): specify ledger, ledger can be:
* ledger_index=xxx, ledger_hash=xxx, or ledger=closed|current|validated
* limit min is 200,
* marker for more relations
* @returns {Request}
*/
public requestAccountRelations(options: IRequestAccountRelationsOptions) {
const request = new Request(this)
if (options === null || typeof options !== "object") {
request.message.type = new Error("invalid options type")
return request
}
if (!~Transaction.RelationTypes.indexOf(options.type)) {
request.message.relation_type = new Error("invalid realtion type")
return request
}
switch (options.type) {
case "trust":
return this.__requestAccount("account_lines", options, request)
case "authorize":
case "freeze":
return this.__requestAccount("account_relation", options, request)
}
request.message.msg = new Error("relation should not go here")
return request
}
/**
* account offers
* options parameters
* @param options
* account(required): the query account
* ledger(option): specify ledger, ledger can be:
* ledger_index=xxx, ledger_hash=xxx, or ledger=closed|current|validated
* limit min is 200, marker
* @returns {Request}
*/
public requestAccountOffers(options: IRequestAccountOffersOptions) {
const request = new Request(this)
if (options === null || typeof options !== "object") {
request.message.type = new Error("invalid options type")
return request
}
return this.__requestAccount("account_offers", options, request)
}
/**
* account tx
* options parameters
* account(required): the query account
* ledger(option): specify ledger, ledger can be:
* ledger_index=xxx, ledger_hash=xxx, or ledger=closed|current|validated
* limit limit output tx record
* ledger_min default 0, ledger_max default -1
* marker: {ledger:xxx, seq: x}
* descending, if returns recently tx records
* @returns {Request}
*/
public requestAccountTx(options: IRequestAccountTxOptions) {
const request = new Request(this, "account_tx", data => {
const results = []
for (const data_transaction of data.transactions) {
results.push(utils.processTx(data_transaction, options.account))
}
data.transactions = results
return data
})
if (options === null || typeof options !== "object") {
request.message.type = new Error("invalid options type")
return request
}
if (!utils.isValidAddress(options.account)) {
request.message.account = new Error("account parameter is invalid")
return request
}
request.message.account = options.account
if (options.ledger_min && Number(options.ledger_min)) {
request.message.ledger_index_min = Number(options.ledger_min)
} else {
request.message.ledger_index_min = 0
}
if (options.ledger_max && Number(options.ledger_max)) {
request.message.ledger_index_max = Number(options.ledger_max)
} else {
request.message.ledger_index_max = -1
}
if (options.limit && Number(options.limit)) {
request.message.limit = Number(options.limit)
}
if (options.offset && Number(options.offset)) {
request.message.offset = Number(options.offset)
}
if (
typeof options.marker === "object" &&
!Number.isNaN(Number(options.marker.ledger)) &&
!Number.isNaN(Number(options.marker.seq))
) {
request.message.marker = options.marker
}
if (options.forward && typeof options.forward === "boolean") {
// true 正向；false反向
request.message.forward = options.forward
}
return request
}
/**
* request order book,
* options {gets: {currency: , issuer: }, pays: {currency: ', issuer: '}}
* for order pair AAA/BBB
* to get bids, gets=AAA, pays=BBB
* to get asks, gets=BBB, pays=AAA
* for bids orders are ordered by price desc
* for asks orders are ordered by price asc
* TODO format data
* @param options
* @returns {Request}
*/
public requestOrderBook(options: IRequestOrderBookOptions) {
const request = new Request(this, "book_offers")
if (options === null || typeof options !== "object") {
request.message.type = new Error("invalid options type")
return request
}
const taker_gets = options.taker_gets || options.pays
if (!utils.isValidAmount0(taker_gets)) {
request.message.taker_gets = new Error("invalid taker gets amount")
return request
}
const taker_pays = options.taker_pays || options.gets
if (!utils.isValidAmount0(taker_pays)) {
request.message.taker_pays = new Error("invalid taker pays amount")
return request
}
options.limit = Number(options.limit)
if (!options.limit) {
options.limit = 300
}
request.message.taker_gets = taker_gets
request.message.taker_pays = taker_pays
request.message.taker = options.taker
? options.taker
: Wallet.getAccountOne()
request.message.limit = options.limit
return request
}
/*
* request brokerage,
* @param options
* @returns {Request}
* */
public requestBrokerage(options: IRequestBrokerageOptions) {
const request = new Request(this, "Fee_Info")
if (options === null || typeof options !== "object") {
request.message.type = new Error("invalid options type")
return request
}
const account = options.account
if (!utils.isValidAddress(account)) {
request.message.account = new Error("account parameter is invalid")
return request
}
request.message.account = account
request.message.ledger_index = "validated"
return request
}
/*
* request signerlist,
* @param options
* @returns {Request}
* */
public requestSignerList(options: IRequestSignerListOptions) {
const request = new Request(this, "account_objects")
if (options === null || typeof options !== "object") {
request.message.type = new Error("invalid options type")
return request
}
const account = options.account
if (!utils.isValidAddress(account)) {
request.message.account = new Error("account parameter is invalid")
return request
}
request.message.account = account
return request
}
// ---------------------- path find request --------------------
/**
* @param options
* {
* account: acccount|from|source, account to find path
* destination: destination|to|dst, destiantion account
* amount: the amount destination will received
* }
* @returns {Request}
*/
public requestPathFind(options) {
const request = new Request(this, "path_find", data => {
const request2 = new Request(this, "path_find")
request2.message.subcommand = "close"
request2.submit()
const _result = []
for (const item of data.alternatives) {
const key = sha1(JSON.stringify(item))
this._paths.set(key, {
path: JSON.stringify(item.paths_computed),
choice: item.source_amount
})
_result.push({
choice: utils.parseAmount(item.source_amount),
key
})
}
return _result
})
if (options === null || typeof options !== "object") {
request.message.type = new Error("invalid options type")
return request
}
const account = options.account
const dest = options.destination
const amount = options.amount
if (!utils.isValidAddress(account)) {
request.message.source_account = new Error("invalid source account")
return request
}
if (!utils.isValidAddress(dest)) {
request.message.destination_account = new Error(
"invalid destination account"
)
return request
}
if (!utils.isValidAmount(amount)) {
request.message.destination_amount = new Error("invalid amount")
return request
}
request.message.subcommand = "create"
request.message.source_account = account
request.message.destination_account = dest
request.message.destination_amount = utils.ToAmount(amount)
return request
}
/**
* payment
* @param options
* source|from|account source account, required
* destination|to destination account, required
* amount payment amount, required
* @returns {Transaction}
*/
public buildPaymentTx(options: IPaymentTxOptions) {
return Transaction.buildPaymentTx(options, this)
}
public initContract(options: IContractInitTxOptions) {
return Transaction.initContractTx(options, this)
}
public invokeContract(options: IContractInvokeTxOptions) {
return Transaction.invokeContractTx(options, this)
}
public initContractTx(options: IContractInitTxOptions) {
return Transaction.initContractTx(options, this)
}
public invokeContractTx(options: IContractInvokeTxOptions) {
return Transaction.invokeContractTx(options, this)
}
public buildContractInitTx(options: IContractInitTxOptions) {
return Transaction.initContractTx(options, this)
}
public buildContractInvokeTx(options: IContractInvokeTxOptions) {
return Transaction.invokeContractTx(options, this)
}
public buildContractDeployTx(options: IContractDeployTxOptions) {
return Transaction.deployContractTx(options, this)
}
public buildContractCallTx(options: IContractCallTxOptions) {
return Transaction.callContractTx(options, this)
}
public AlethEvent = function(options) {
const request = new Request(this, "aleth_eventlog", data => data)
if (typeof options !== "object") {
request.message.obj = new Error("invalid options type")
return request
}
const des = options.destination
const abi = options.abi
if (!utils.isValidAddress(des)) {
request.message.des = new Error("invalid destination")
return request
}
if (!abi) {
request.message.abi = new Error("not found abi")
return request
}
if (!Array.isArray(abi)) {
request.message.params = new Error("invalid abi: type error.")
return request
}
this.abi = abi
request.message.Destination = des
return request
}
/**
* contract
* @param options
* account, required
* amount, required
* payload, required
* @returns {Transaction}
*/
public deployContractTx(options: IContractDeployTxOptions) {
return Transaction.deployContractTx(options, this)
}
/**
* contract
* @param options
* account, required
* des, required
* params, required
* @returns {Transaction}
*/
public callContractTx(options: IContractCallTxOptions) {
return Transaction.callContractTx(options, this)
}
public buildSignTx(options: ISignTxOptions) {
return Transaction.buildSignTx(options, this)
}
/**
* Brokerage 设置挂单手续费
* @param options
* account, required
* mol|molecule, required
* den|denominator, required
* app, required
* amount, required
* @returns {Transaction}
*/
public buildBrokerageTx(options) {
return Transaction.buildBrokerageTx(options, this)
}
/**
* add wallet relation set
* @param options
* type: Transaction.RelationTypes
* source|from|account source account, required
* limit limt amount, required
* quality_out, optional
* quality_in, optional
* @returns {Transaction}
*/
public buildRelationTx(options: IRelationTxOptions) {
return Transaction.buildRelationTx(options, this)
}
/**
* account information set
* @param options
* type: Transaction.AccountSetTypes
* @returns {Transaction}
*/
public buildAccountSetTx(options: IAccountSetTxOptions) {
return Transaction.buildAccountSetTx(options, this)
}
/**
* offer create
* @param options
* type: 'Sell' or 'Buy'
* source|from|account maker account, required
* taker_gets|pays amount to take out, required
* taker_pays|gets amount to take in, required
* @returns {Transaction}
*/
public buildOfferCreateTx(options: IOfferCreateTxOptions) {
return Transaction.buildOfferCreateTx(options, this)
}
/**
* offer cancel
* @param options
* source|from|account source account, required
* sequence, required
* @returns {Transaction}
*/
public buildOfferCancelTx(options: IOfferCancelTxOptions) {
return Transaction.buildOfferCancelTx(options, this)
}
/**
* build multisign tx
* @param options
* source|from|account source account, required
* threshold, required
* lists, required
* @returns {Transaction}
*/
public buildSignerListTx(options: ISignerListTxOptions) {
return Transaction.buildSignerListTx(options, this)
}
public buildSignFirstTx(options: ISignFirstTxOptions) {
// 首签账号添加SigningPubKey字段
return Transaction.buildSignFirstTx(options)
}
public buildSignOtherTx(options: ISignOtherTxOptions) {
// 其他账号签名只需把返回结果提交回去即可
return Transaction.buildSignOtherTx(options, this)
}
public buildMultisignedTx(tx_json) {
// 提交多重签名
return Transaction.buildMultisignedTx(tx_json, this)
}
public buildTx(tx_json) {
// 通过tx_json创建Transaction对象
return Transaction.buildTx(tx_json, this)
}
// ---------------------- subscribe --------------------
/**
* @param streams
* @returns {Request}
*/
public subscribe(streams) {
const request = new Request(this, "subscribe")
if (streams) {
request.message.streams = Array.isArray(streams) ? streams : [streams]
}
return request
}
/**
* @param streams
* @returns {Request}
*/
public unsubscribe(streams) {
const request = new Request(this, "unsubscribe")
if (streams) {
request.message.streams = Array.isArray(streams) ? streams : [streams]
}
return request
}
/**
* stub function for account event
* @returns {Account}
*/
public createAccountStub() {
return new Account(this)
}
/** stub function for order book
*
* @returns {OrderBook}
*/
public createOrderBookStub() {
return new OrderBook(this)
}
/**
* update server ledger status
* TODO
* supply data to outside include ledger, reserve and fee
* @param data
* @private
*/
private _handleLedgerClosed(data) {
if (data.ledger_index > this._status.ledger_index) {
this._status.ledger_index = data.ledger_index
this._status.ledger_time = data.ledger_time
this._status.reserve_base = data.reserve_base
this._status.reserve_inc = data.reserve_inc
this._status.fee_base = data.fee_base
this._status.fee_ref = data.fee_ref
this.emit("ledger_closed", data)
}
}
/**
* TODO
* supply data to outside about server status
* @param data
* @private
*/
private _handleServerStatus(data) {
// TODO check data format
this._updateServerStatus(data)
this.emit("server_status", data)
}
/**
* update remote state and server state
* @param data
* @private
*/
private _updateServerStatus(data) {
this._status.load_base = data.load_base
this._status.load_factor = data.load_factor
if (data.pubkey_node) {
this._status.pubkey_node = data.pubkey_node
}
this._status.server_status = data.server_status
const online = ~Server.onlineStates.indexOf(data.server_status)
this._server._setState(online ? "online" : "offline")
}
/**
* handle response by every websocket request
* @param data
* @private
*/
private _handleResponse(data) {
const req_id = data.id
if (
typeof req_id !== "number" ||
req_id < 0 ||
req_id > this._requests.length
) {
return
}
const request = this._requests[req_id]
// pass process it when null callback
Iif (request.data && request.data.abi) {
data.abi = request.data.abi
}
delete this._requests[req_id]
delete data.id
// check if data contain server info
if (data.result && data.status === "success" && data.result.server_status) {
this._updateServerStatus(data.result)
}
Iif (this._solidity) {
// return to callback
if (data.status === "success") {
const result = request.filter(data.result)
if (
result.ContractState &&
result.tx_json.TransactionType === "AlethContract" &&
result.tx_json.Method === 1
) {
// 调用合约时，如果是获取变量，则转换一下
const method = utils.hexToString(result.tx_json.MethodSignature)
result.func = method.substring(0, method.indexOf("(")) // 函数名
result.func_parms = method
.substring(method.indexOf("(") + 1, method.indexOf(")"))
.split(",") // 函数参数
if (result.func_parms.length === 1 && result.func_parms[0] === "") {
// 没有参数，返回空数组
result.func_parms = []
}
const abi = new this.AbiCoder()
const types = utils.getTypes(data.abi, result.func)
result.ContractState = abi.decodeParameters(
types,
result.ContractState
)
types.forEach((type, i) => {
if (type === "address") {
const adr = result.ContractState[i].slice(2)
const buf = new Buffer(20)
buf.write(adr, 0, "hex")
result.ContractState[
i
] = Wallet.KeyPair.addressCodec.encodeAddress(buf)
}
})
}
if (result.AlethLog) {
const logValue = []
const item = { address: "", data: {} }
const logs = result.AlethLog
logs.forEach(log => {
const _log = JSON.parse(log.item)
const _adr = _log.address.slice(2)
const buf = new Buffer(20)
buf.write(_adr, 0, "hex")
item.address = Wallet.KeyPair.addressCodec.encodeAddress(buf)
const abi = new this.AbiCoder()
data.abi
.filter(json => {
return json.type === "event"
})
.map(json => {
const types = json.inputs.map(input => {
return input.type
})
const foo = json.name + "(" + types.join(",") + ")"
if (abi.encodeEventSignature(foo) === _log.topics[0]) {
const data2 = abi.decodeLog(
json.inputs,
_log.data,
_log.topics
)
json.inputs.forEach((input, i) => {
if (input.type === "address") {
const _adr2 = data2[i].slice(2)
const buf2 = new Buffer(20)
buf2.write(_adr2, 0, "hex")
item.data[i] = Wallet.KeyPair.addressCodec.encodeAddress(
buf2
)
} else {
item.data[i] = data2[i]
}
})
}
})
logValue.push(item)
})
result.AlethLog = logValue
}
request && request.callback(null, result)
} else if (data.status === "error") {
request && request.callback(data.error_message || data.error_exception)
}
} else {
if (data.status === "success") {
const result = request.filter(data.result)
request && request.callback(null, result)
} else Eif (data.status === "error") {
request && request.callback(data.error_message || data.error_exception)
}
}
}
/**
* handle transaction type response
* TODO supply more friendly transaction data
* @param data
* @private
*/
private _handleTransaction(data) {
const tx = data.transaction.hash
Iif (this._cache.get(tx)) return
this._cache.set(tx, 1)
this.emit("transactions", data)
}
/**
* emit path find date to other
* TODO supply more friendly data
* @param data
* @private
*/
private _handlePathFind(data) {
this.emit("path_find", data)
}
/**
* request account info, internal function
* @param type
* @param options
* @returns {Request}
* @private
*/
private __requestAccount(type, options, request) {
// var request = new Request(this, type, filter);
request._command = type
const account = options.account
const ledger = options.ledger
const peer = options.peer
let limit = options.limit
const marker = options.marker
// if (marker && (Number(ledger) <= 0 || !utils.isValidHash(ledger))) {
// throw new Error('marker needs a ledger_index or ledger_hash');
// }
request.message.relation_type = getRelationType(options.type)
if (account) {
if (!utils.isValidAddress(account)) {
request.message.account = new Error("invalid account")
return request
} else {
request.message.account = account
}
}
request.selectLedger(ledger)
if (peer && utils.isValidAddress(peer)) {
request.message.peer = peer
}
if (Number(limit)) {
limit = Number(limit)
if (limit < 0) limit = 0
if (limit > 1e9) limit = 1e9
request.message.limit = limit
}
if (marker) {
request.message.marker = marker
}
return request
}
}
export { Remote }
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