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index.js
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index.js
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/*
This file is part of web3.js.
web3.js is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
web3.js is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with web3.js. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file index.js
* @author Fabian Vogelsteller <fabian@ethereum.org>
* @date 2017
*/
"use strict";
var _ = require('underscore');
var core = require('web3-core');
var helpers = require('web3-core-helpers');
var Subscriptions = require('web3-core-subscriptions').subscriptions;
var Method = require('web3-core-method');
var utils = require('web3-utils');
var Net = require('web3-net');
var Personal = require('web3-eth-personal');
var BaseContract = require('web3-eth-contract');
var Iban = require('web3-eth-iban');
var Accounts = require('web3-eth-accounts');
var abi = require('web3-eth-abi');
var getNetworkType = require('./getNetworkType.js');
var formatter = helpers.formatters;
var blockCall = function (args) {
return (_.isString(args[0]) && args[0].indexOf('0x') === 0) ? "eth_getBlockByHash" : "eth_getBlockByNumber";
};
var transactionFromBlockCall = function (args) {
return (_.isString(args[0]) && args[0].indexOf('0x') === 0) ? 'eth_getTransactionByBlockHashAndIndex' : 'eth_getTransactionByBlockNumberAndIndex';
};
var uncleCall = function (args) {
return (_.isString(args[0]) && args[0].indexOf('0x') === 0) ? 'eth_getUncleByBlockHashAndIndex' : 'eth_getUncleByBlockNumberAndIndex';
};
var getBlockTransactionCountCall = function (args) {
return (_.isString(args[0]) && args[0].indexOf('0x') === 0) ? 'eth_getBlockTransactionCountByHash' : 'eth_getBlockTransactionCountByNumber';
};
var uncleCountCall = function (args) {
return (_.isString(args[0]) && args[0].indexOf('0x') === 0) ? 'eth_getUncleCountByBlockHash' : 'eth_getUncleCountByBlockNumber';
};
var Eth = function Eth() {
var _this = this;
// sets _requestmanager
core.packageInit(this, arguments);
// overwrite setProvider
var setProvider = this.setProvider;
this.setProvider = function () {
setProvider.apply(_this, arguments);
_this.net.setProvider.apply(_this, arguments);
_this.personal.setProvider.apply(_this, arguments);
_this.accounts.setProvider.apply(_this, arguments);
_this.Contract.setProvider(_this.currentProvider, _this.accounts);
};
var defaultAccount = null;
var defaultBlock = 'latest';
Object.defineProperty(this, 'defaultAccount', {
get: function () {
return defaultAccount;
},
set: function (val) {
if(val) {
defaultAccount = utils.toChecksumAddress(formatter.inputAddressFormatter(val));
}
// also set on the Contract object
_this.Contract.defaultAccount = defaultAccount;
_this.personal.defaultAccount = defaultAccount;
// update defaultBlock
methods.forEach(function(method) {
method.defaultAccount = defaultAccount;
});
return val;
},
enumerable: true
});
Object.defineProperty(this, 'defaultBlock', {
get: function () {
return defaultBlock;
},
set: function (val) {
defaultBlock = val;
// also set on the Contract object
_this.Contract.defaultBlock = defaultBlock;
_this.personal.defaultBlock = defaultBlock;
// update defaultBlock
methods.forEach(function(method) {
method.defaultBlock = defaultBlock;
});
return val;
},
enumerable: true
});
this.clearSubscriptions = _this._requestManager.clearSubscriptions;
// add net
this.net = new Net(this.currentProvider);
// add chain detection
this.net.getNetworkType = getNetworkType.bind(this);
// add accounts
this.accounts = new Accounts(this.currentProvider);
// add personal
this.personal = new Personal(this.currentProvider);
this.personal.defaultAccount = this.defaultAccount;
// create a proxy Contract type for this instance, as a Contract's provider
// is stored as a class member rather than an instance variable. If we do
// not create this proxy type, changing the provider in one instance of
// web3-eth would subsequently change the provider for _all_ contract
// instances!
var Contract = function Contract() {
BaseContract.apply(this, arguments);
};
Contract.setProvider = function() {
BaseContract.setProvider.apply(this, arguments);
};
// make our proxy Contract inherit from web3-eth-contract so that it has all
// the right functionality and so that instanceof and friends work properly
Contract.prototype = Object.create(BaseContract.prototype);
Contract.prototype.constructor = Contract;
// add contract
this.Contract = Contract;
this.Contract.defaultAccount = this.defaultAccount;
this.Contract.defaultBlock = this.defaultBlock;
this.Contract.setProvider(this.currentProvider, this.accounts);
// add IBAN
this.Iban = Iban;
// add ABI
this.abi = abi;
var methods = [
new Method({
name: 'getProtocolVersion',
call: 'eth_protocolVersion',
params: 0
}),
new Method({
name: 'getCoinbase',
call: 'eth_coinbase',
params: 0
}),
new Method({
name: 'isMining',
call: 'eth_mining',
params: 0
}),
new Method({
name: 'getHashrate',
call: 'eth_hashrate',
params: 0,
outputFormatter: utils.hexToNumber
}),
new Method({
name: 'getChainId',
call: 'eth_chainId',
params: 0,
outputFormatter: utils.hexToNumber
}),
new Method({
name: 'isSyncing',
call: 'eth_syncing',
params: 0,
outputFormatter: formatter.outputSyncingFormatter
}),
new Method({
name: 'getGasPrice',
call: 'eth_gasPrice',
params: 0,
outputFormatter: formatter.outputBigNumberFormatter
}),
new Method({
name: 'getAccounts',
call: 'eth_accounts',
params: 0,
outputFormatter: utils.toChecksumAddress
}),
new Method({
name: 'getBlockNumber',
call: 'eth_blockNumber',
params: 0,
outputFormatter: utils.hexToNumber
}),
new Method({
name: 'getBalance',
call: 'eth_getBalance',
params: 2,
inputFormatter: [formatter.inputAddressFormatter, formatter.inputDefaultBlockNumberFormatter],
outputFormatter: formatter.outputBigNumberFormatter
}),
new Method({
name: 'getStorageAt',
call: 'eth_getStorageAt',
params: 3,
inputFormatter: [formatter.inputAddressFormatter, utils.numberToHex, formatter.inputDefaultBlockNumberFormatter]
}),
new Method({
name: 'getCode',
call: 'eth_getCode',
params: 2,
inputFormatter: [formatter.inputAddressFormatter, formatter.inputDefaultBlockNumberFormatter]
}),
new Method({
name: 'getBlock',
call: blockCall,
params: 2,
inputFormatter: [formatter.inputBlockNumberFormatter, function (val) { return !!val; }],
outputFormatter: formatter.outputBlockFormatter
}),
new Method({
name: 'getUncle',
call: uncleCall,
params: 2,
inputFormatter: [formatter.inputBlockNumberFormatter, utils.numberToHex],
outputFormatter: formatter.outputBlockFormatter,
}),
new Method({
name: 'getBlockTransactionCount',
call: getBlockTransactionCountCall,
params: 1,
inputFormatter: [formatter.inputBlockNumberFormatter],
outputFormatter: utils.hexToNumber
}),
new Method({
name: 'getBlockUncleCount',
call: uncleCountCall,
params: 1,
inputFormatter: [formatter.inputBlockNumberFormatter],
outputFormatter: utils.hexToNumber
}),
new Method({
name: 'getTransaction',
call: 'eth_getTransactionByHash',
params: 1,
inputFormatter: [null],
outputFormatter: formatter.outputTransactionFormatter
}),
new Method({
name: 'getTransactionFromBlock',
call: transactionFromBlockCall,
params: 2,
inputFormatter: [formatter.inputBlockNumberFormatter, utils.numberToHex],
outputFormatter: formatter.outputTransactionFormatter
}),
new Method({
name: 'getTransactionReceipt',
call: 'eth_getTransactionReceipt',
params: 1,
inputFormatter: [null],
outputFormatter: formatter.outputTransactionReceiptFormatter
}),
new Method({
name: 'getTransactionCount',
call: 'eth_getTransactionCount',
params: 2,
inputFormatter: [formatter.inputAddressFormatter, formatter.inputDefaultBlockNumberFormatter],
outputFormatter: utils.hexToNumber
}),
new Method({
name: 'sendSignedTransaction',
call: 'eth_sendRawTransaction',
params: 1,
inputFormatter: [null]
}),
new Method({
name: 'signTransaction',
call: 'eth_signTransaction',
params: 1,
inputFormatter: [formatter.inputTransactionFormatter]
}),
new Method({
name: 'sendTransaction',
call: 'eth_sendTransaction',
params: 1,
inputFormatter: [formatter.inputTransactionFormatter]
}),
new Method({
name: 'sign',
call: 'eth_sign',
params: 2,
inputFormatter: [formatter.inputSignFormatter, formatter.inputAddressFormatter],
transformPayload: function (payload) {
payload.params.reverse();
return payload;
}
}),
new Method({
name: 'call',
call: 'eth_call',
params: 2,
inputFormatter: [formatter.inputCallFormatter, formatter.inputDefaultBlockNumberFormatter]
}),
new Method({
name: 'estimateGas',
call: 'eth_estimateGas',
params: 1,
inputFormatter: [formatter.inputCallFormatter],
outputFormatter: utils.hexToNumber
}),
new Method({
name: 'getCompilers',
call: 'eth_getCompilers',
params: 0
}),
new Method({
name: 'compile.solidity',
call: 'eth_compileSolidity',
params: 1
}),
new Method({
name: 'compile.lll',
call: 'eth_compileLLL',
params: 1
}),
new Method({
name: 'compile.serpent',
call: 'eth_compileSerpent',
params: 1
}),
new Method({
name: 'submitWork',
call: 'eth_submitWork',
params: 3
}),
new Method({
name: 'getWork',
call: 'eth_getWork',
params: 0
}),
new Method({
name: 'getPastLogs',
call: 'eth_getLogs',
params: 1,
inputFormatter: [formatter.inputLogFormatter],
outputFormatter: formatter.outputLogFormatter
}),
// subscriptions
new Subscriptions({
name: 'subscribe',
type: 'eth',
subscriptions: {
'newBlockHeaders': {
// TODO rename on RPC side?
subscriptionName: 'newHeads', // replace subscription with this name
params: 0,
outputFormatter: formatter.outputBlockFormatter
},
'pendingTransactions': {
subscriptionName: 'newPendingTransactions', // replace subscription with this name
params: 0
},
'logs': {
params: 1,
inputFormatter: [formatter.inputLogFormatter],
outputFormatter: formatter.outputLogFormatter,
// DUBLICATE, also in web3-eth-contract
subscriptionHandler: function (output) {
if(output.removed) {
this.emit('changed', output);
} else {
this.emit('data', output);
}
if (_.isFunction(this.callback)) {
this.callback(null, output, this);
}
}
},
'syncing': {
params: 0,
outputFormatter: formatter.outputSyncingFormatter,
subscriptionHandler: function (output) {
var _this = this;
// fire TRUE at start
if(this._isSyncing !== true) {
this._isSyncing = true;
this.emit('changed', _this._isSyncing);
if (_.isFunction(this.callback)) {
this.callback(null, _this._isSyncing, this);
}
setTimeout(function () {
_this.emit('data', output);
if (_.isFunction(_this.callback)) {
_this.callback(null, output, _this);
}
}, 0);
// fire sync status
} else {
this.emit('data', output);
if (_.isFunction(_this.callback)) {
this.callback(null, output, this);
}
// wait for some time before fireing the FALSE
clearTimeout(this._isSyncingTimeout);
this._isSyncingTimeout = setTimeout(function () {
if(output.currentBlock > output.highestBlock - 200) {
_this._isSyncing = false;
_this.emit('changed', _this._isSyncing);
if (_.isFunction(_this.callback)) {
_this.callback(null, _this._isSyncing, _this);
}
}
}, 500);
}
}
}
}
})
];
methods.forEach(function(method) {
method.attachToObject(_this);
method.setRequestManager(_this._requestManager, _this.accounts); // second param means is eth.accounts (necessary for wallet signing)
method.defaultBlock = _this.defaultBlock;
method.defaultAccount = _this.defaultAccount;
});
};
core.addProviders(Eth);
module.exports = Eth;