mirror of https://github.com/embarklabs/embark.git
348 lines
12 KiB
JavaScript
348 lines
12 KiB
JavaScript
const async = require('async');
|
|
const child_process = require('child_process');
|
|
|
|
const fs = require('../../core/fs.js');
|
|
const constants = require('../../constants.json');
|
|
const utils = require('../../utils/utils.js');
|
|
|
|
const GethCommands = require('./geth_commands.js');
|
|
const DevFunds = require('./dev_funds.js');
|
|
|
|
const {defaultHost, dockerHostSwap} = require('../../utils/host');
|
|
|
|
/*eslint complexity: ["error", 36]*/
|
|
var Blockchain = function(options) {
|
|
this.blockchainConfig = options.blockchainConfig;
|
|
this.env = options.env || 'development';
|
|
this.client = options.client;
|
|
this.isDev = options.isDev;
|
|
this.onReadyCallback = options.onReadyCallback || (() => {});
|
|
this.onExitCallback = options.onExitCallback;
|
|
this.proxyIpc = null;
|
|
|
|
if ((this.blockchainConfig === {} || JSON.stringify(this.blockchainConfig) === '{"enabled":true}') && this.env !== 'development') {
|
|
console.log("===> " + __("warning: running default config on a non-development environment"));
|
|
}
|
|
|
|
let defaultWsApi = ['eth', 'web3', 'net', 'shh', 'debug', 'pubsub'];
|
|
if (this.isDev) {
|
|
defaultWsApi.push('personal');
|
|
}
|
|
|
|
this.config = {
|
|
geth_bin: this.blockchainConfig.geth_bin || 'geth',
|
|
networkType: this.blockchainConfig.networkType || 'custom',
|
|
genesisBlock: this.blockchainConfig.genesisBlock || false,
|
|
datadir: this.blockchainConfig.datadir || false,
|
|
mineWhenNeeded: this.blockchainConfig.mineWhenNeeded || false,
|
|
rpcHost: dockerHostSwap(this.blockchainConfig.rpcHost) || defaultHost,
|
|
rpcPort: this.blockchainConfig.rpcPort || 8545,
|
|
rpcCorsDomain: this.blockchainConfig.rpcCorsDomain || false,
|
|
networkId: this.blockchainConfig.networkId || 1337,
|
|
port: this.blockchainConfig.port || 30303,
|
|
nodiscover: this.blockchainConfig.nodiscover || false,
|
|
mine: this.blockchainConfig.mine || false,
|
|
account: this.blockchainConfig.account || {},
|
|
whisper: (this.blockchainConfig.whisper === undefined) || this.blockchainConfig.whisper,
|
|
maxpeers: ((this.blockchainConfig.maxpeers === 0) ? 0 : (this.blockchainConfig.maxpeers || 25)),
|
|
bootnodes: this.blockchainConfig.bootnodes || "",
|
|
rpcApi: (this.blockchainConfig.rpcApi || ['eth', 'web3', 'net', 'debug']),
|
|
wsRPC: (this.blockchainConfig.wsRPC === undefined) || this.blockchainConfig.wsRPC,
|
|
wsHost: dockerHostSwap(this.blockchainConfig.wsHost) || defaultHost,
|
|
wsPort: this.blockchainConfig.wsPort || 8546,
|
|
wsOrigins: this.blockchainConfig.wsOrigins || false,
|
|
wsApi: (this.blockchainConfig.wsApi || defaultWsApi),
|
|
vmdebug: this.blockchainConfig.vmdebug || false,
|
|
targetGasLimit: this.blockchainConfig.targetGasLimit || false,
|
|
syncMode: this.blockchainConfig.syncMode,
|
|
syncmode: this.blockchainConfig.syncmode,
|
|
verbosity: this.blockchainConfig.verbosity
|
|
};
|
|
|
|
if (this.blockchainConfig === {} || JSON.stringify(this.blockchainConfig) === '{"enabled":true}') {
|
|
this.config.account = {};
|
|
this.config.account.password = fs.embarkPath("templates/boilerplate/config/development/password");
|
|
this.config.genesisBlock = fs.embarkPath("templates/boilerplate/config/development/genesis.json");
|
|
this.config.datadir = fs.dappPath(".embark/development/datadir");
|
|
}
|
|
|
|
const spaceMessage = 'The path for %s in blockchain config contains spaces, please remove them';
|
|
if (this.config.datadir && this.config.datadir.indexOf(' ') > 0) {
|
|
console.error(__(spaceMessage, 'datadir'));
|
|
process.exit();
|
|
}
|
|
if (this.config.account.password && this.config.account.password.indexOf(' ') > 0) {
|
|
console.error(__(spaceMessage, 'account.password'));
|
|
process.exit();
|
|
}
|
|
if (this.config.genesisBlock && this.config.genesisBlock.indexOf(' ') > 0) {
|
|
console.error(__(spaceMessage, 'genesisBlock'));
|
|
process.exit();
|
|
}
|
|
this.initProxy();
|
|
this.client = new options.client({config: this.config, env: this.env, isDev: this.isDev});
|
|
};
|
|
|
|
Blockchain.prototype.initProxy = function() {
|
|
this.config.proxy = true;
|
|
if (this.blockchainConfig.proxy === false) {
|
|
this.config.proxy = false;
|
|
return;
|
|
}
|
|
|
|
this.config.rpcPort += constants.blockchain.servicePortOnProxy;
|
|
this.config.wsPort += constants.blockchain.servicePortOnProxy;
|
|
};
|
|
|
|
Blockchain.prototype.setupProxy = async function() {
|
|
const proxy = require('./proxy');
|
|
const Ipc = require('../../core/ipc');
|
|
|
|
if(!this.proxyIpc) this.proxyIpc = new Ipc({ipcRole: 'client'});
|
|
|
|
let wsProxy;
|
|
if(this.config.wsRPC) {
|
|
wsProxy = proxy.serve(this.proxyIpc, this.config.wsHost, this.config.wsPort, true, this.config.wsOrigins);
|
|
}
|
|
|
|
[this.rpcProxy, this.wsProxy] = await Promise.all([
|
|
proxy.serve(this.proxyIpc, this.config.rpcHost, this.config.rpcPort, false),
|
|
wsProxy
|
|
]);
|
|
};
|
|
|
|
Blockchain.prototype.shutdownProxy = function() {
|
|
if (!this.config.proxy) {
|
|
return;
|
|
}
|
|
|
|
if(this.rpcProxy) this.rpcProxy.close();
|
|
if(this.wsProxy) this.wsProxy.close();
|
|
};
|
|
|
|
Blockchain.prototype.runCommand = function(cmd, options, callback) {
|
|
console.log(__("running: %s", cmd.underline).green);
|
|
if (this.blockchainConfig.silent) {
|
|
options.silent = true;
|
|
}
|
|
return child_process.exec(cmd, options, callback);
|
|
};
|
|
|
|
Blockchain.prototype.run = function() {
|
|
var self = this;
|
|
console.log("===============================================================================".magenta);
|
|
console.log("===============================================================================".magenta);
|
|
console.log(__("Embark Blockchain Using: %s", this.client.name.underline).magenta);
|
|
console.log("===============================================================================".magenta);
|
|
console.log("===============================================================================".magenta);
|
|
this.checkPathLength();
|
|
let address = '';
|
|
async.waterfall([
|
|
function checkInstallation(next) {
|
|
self.isClientInstalled((err) => {
|
|
if (err) {
|
|
console.log(__("could not find {{geth_bin}} command; is {{client_name}} installed or in the PATH?", {geth_bin: this.config.geth_bin, client_name: this.client.name}).green);
|
|
return next(err);
|
|
}
|
|
next();
|
|
});
|
|
},
|
|
function init(next) {
|
|
if (!self.isDev) {
|
|
return self.initChainAndGetAddress((err, addr) => {
|
|
address = addr;
|
|
next(err);
|
|
});
|
|
}
|
|
next();
|
|
},
|
|
function getMainCommand(next) {
|
|
self.client.mainCommand(address, function(cmd, args) {
|
|
next(null, cmd, args);
|
|
}, true);
|
|
}
|
|
], function (err, cmd, args) {
|
|
if (err) {
|
|
console.error(err.message);
|
|
return;
|
|
}
|
|
args = utils.compact(args);
|
|
|
|
let full_cmd = cmd + " " + args.join(' ');
|
|
console.log(__("running: %s", full_cmd.underline).green);
|
|
self.child = child_process.spawn(cmd, args, {cwd: process.cwd()});
|
|
self.child.on('error', (err) => {
|
|
err = err.toString();
|
|
console.error('Blockchain error: ', err);
|
|
if (self.env === 'development' && err.indexOf('Failed to unlock') > 0) {
|
|
console.error('\n' + __('Development blockchain has changed to use the --dev option.').yellow);
|
|
console.error(__('You can reset your workspace to fix the problem with').yellow + ' embark reset'.cyan);
|
|
console.error(__('Otherwise, you can change your data directory in blockchain.json (datadir)').yellow);
|
|
}
|
|
});
|
|
self.child.stdout.on('data', (data) => {
|
|
console.error(`Geth error: ${data}`);
|
|
});
|
|
let httpReady = false;
|
|
let wsReady = !self.config.wsRPC;
|
|
// Geth logs appear in stderr somehow
|
|
self.child.stderr.on('data', async (data) => {
|
|
data = data.toString();
|
|
if (data.indexOf('HTTP endpoint opened') > -1) {
|
|
httpReady = true;
|
|
}
|
|
|
|
if (data.indexOf('WebSocket endpoint opened') > -1) {
|
|
wsReady = true;
|
|
}
|
|
|
|
if (!self.readyCalled && wsReady && httpReady) {
|
|
self.readyCalled = true;
|
|
if (self.isDev) {
|
|
self.createFundAndUnlockAccounts((err) => {
|
|
// TODO: this is never called!
|
|
if(err) console.error('Error creating, unlocking, and funding accounts', err);
|
|
});
|
|
}
|
|
if (self.config.proxy) {
|
|
await self.setupProxy();
|
|
}
|
|
self.readyCallback();
|
|
}
|
|
|
|
console.log('Geth: ' + data);
|
|
});
|
|
self.child.on('exit', (code) => {
|
|
let strCode;
|
|
if (code) {
|
|
strCode = ' with error code ' + code;
|
|
} else {
|
|
strCode = ' with no error code (manually killed?)';
|
|
}
|
|
console.error('Geth exited' + strCode);
|
|
|
|
if(self.onExitCallback){
|
|
self.onExitCallback();
|
|
}
|
|
});
|
|
|
|
self.child.on('uncaughtException', (err) => {
|
|
console.error('Uncaught geth exception', err);
|
|
|
|
if(self.onExitCallback){
|
|
self.onExitCallback();
|
|
}
|
|
});
|
|
});
|
|
};
|
|
|
|
Blockchain.prototype.createFundAndUnlockAccounts = function(cb) {
|
|
DevFunds.new({blockchainConfig: this.config}).then(devFunds => {
|
|
devFunds.createFundAndUnlockAccounts((err) => {
|
|
cb(err);
|
|
});
|
|
});
|
|
};
|
|
|
|
Blockchain.prototype.readyCallback = function() {
|
|
if (this.onReadyCallback) {
|
|
this.onReadyCallback();
|
|
}
|
|
|
|
if (this.config.mineWhenNeeded && !this.isDev) {
|
|
const GethMiner = require('./miner');
|
|
this.miner = new GethMiner({datadir: this.blockchainConfig.datadir});
|
|
}
|
|
};
|
|
|
|
Blockchain.prototype.kill = function() {
|
|
this.shutdownProxy();
|
|
|
|
if (this.child) {
|
|
this.child.kill();
|
|
}
|
|
};
|
|
|
|
Blockchain.prototype.checkPathLength = function() {
|
|
let dappPath = fs.dappPath('');
|
|
if (dappPath.length > 66) {
|
|
// console.error is captured and sent to the console output regardless of silent setting
|
|
console.error("===============================================================================".yellow);
|
|
console.error("===========> ".yellow + __('WARNING! DApp path length is too long: ').yellow + dappPath.yellow);
|
|
console.error("===========> ".yellow + __('This is known to cause issues with starting geth, please consider reducing your DApp path\'s length to 66 characters or less.').yellow);
|
|
console.error("===============================================================================".yellow);
|
|
}
|
|
};
|
|
|
|
Blockchain.prototype.isClientInstalled = function(callback) {
|
|
let versionCmd = this.client.determineVersionCommand();
|
|
this.runCommand(versionCmd, {}, (err, stdout, stderr) => {
|
|
if (err || !stdout || stderr.indexOf("not found") >= 0 || stdout.indexOf("not found") >= 0) {
|
|
return callback('Geth not found');
|
|
}
|
|
callback();
|
|
});
|
|
};
|
|
|
|
Blockchain.prototype.initChainAndGetAddress = function(callback) {
|
|
const self = this;
|
|
let address = null;
|
|
const ALREADY_INITIALIZED = 'already';
|
|
|
|
// ensure datadir exists, bypassing the interactive liabilities prompt.
|
|
self.datadir = '.embark/' + self.env + '/datadir';
|
|
|
|
async.waterfall([
|
|
function makeDir(next) {
|
|
fs.mkdirp(self.datadir, (err, _result) => {
|
|
next(err);
|
|
});
|
|
},
|
|
function listAccounts(next) {
|
|
self.runCommand(self.client.listAccountsCommand(), {}, (err, stdout, _stderr) => {
|
|
if (err || stdout === undefined || stdout.match(/{(\w+)}/) === null || stdout.indexOf("Fatal") >= 0) {
|
|
console.log(__("no accounts found").green);
|
|
return next();
|
|
}
|
|
console.log(__("already initialized").green);
|
|
address = stdout.match(/{(\w+)}/)[1];
|
|
next(ALREADY_INITIALIZED);
|
|
});
|
|
},
|
|
function genesisBlock(next) {
|
|
if (!self.config.genesisBlock) {
|
|
return next();
|
|
}
|
|
console.log(__("initializing genesis block").green);
|
|
self.runCommand(self.client.initGenesisCommmand(), {}, (err, _stdout, _stderr) => {
|
|
next(err);
|
|
});
|
|
},
|
|
function newAccount(next) {
|
|
self.runCommand(self.client.newAccountCommand(), {}, (err, stdout, _stderr) => {
|
|
if (err) {
|
|
return next(err);
|
|
}
|
|
address = stdout.match(/{(\w+)}/)[1];
|
|
next();
|
|
});
|
|
}
|
|
], (err) => {
|
|
if (err === ALREADY_INITIALIZED) {
|
|
err = null;
|
|
}
|
|
callback(err, address);
|
|
});
|
|
};
|
|
|
|
var BlockchainClient = function(blockchainConfig, client, env, onReadyCallback, onExitCallback) {
|
|
const isDev = !!blockchainConfig.isDev;
|
|
// TODO add other clients at some point
|
|
if (client === 'geth') {
|
|
return new Blockchain({blockchainConfig, client: GethCommands, env, isDev, onReadyCallback, onExitCallback});
|
|
}
|
|
throw new Error('unknown client');
|
|
};
|
|
|
|
module.exports = BlockchainClient;
|