40 lines
1.5 KiB
TypeScript
40 lines
1.5 KiB
TypeScript
import ABI = require('ethereumjs-abi');
|
|
import ethUtil = require('ethereumjs-util');
|
|
import * as _ from 'lodash';
|
|
import * as Web3 from 'web3';
|
|
|
|
import { TransactionDataParams } from './types';
|
|
|
|
export class MultiSigWrapper {
|
|
private _multiSig: Web3.ContractInstance;
|
|
public static encodeFnArgs(name: string, abi: Web3.AbiDefinition[], args: any[]) {
|
|
const abiEntity = _.find(abi, { name }) as Web3.MethodAbi;
|
|
if (_.isUndefined(abiEntity)) {
|
|
throw new Error(`Did not find abi entry for name: ${name}`);
|
|
}
|
|
const types = _.map(abiEntity.inputs, input => input.type);
|
|
const funcSig = ethUtil.bufferToHex(ABI.methodID(name, types));
|
|
const argsData = _.map(args, arg => {
|
|
const target = _.isBoolean(arg) ? +arg : arg;
|
|
const targetBuff = ethUtil.toBuffer(target);
|
|
return ethUtil.setLengthLeft(targetBuff, 32).toString('hex');
|
|
});
|
|
return funcSig + argsData.join('');
|
|
}
|
|
constructor(multiSigContractInstance: Web3.ContractInstance) {
|
|
this._multiSig = multiSigContractInstance;
|
|
}
|
|
public async submitTransactionAsync(
|
|
destination: string,
|
|
from: string,
|
|
dataParams: TransactionDataParams,
|
|
value: number = 0,
|
|
) {
|
|
const { name, abi, args = [] } = dataParams;
|
|
const encoded = MultiSigWrapper.encodeFnArgs(name, abi, args);
|
|
return this._multiSig.submitTransaction(destination, value, encoded, {
|
|
from,
|
|
});
|
|
}
|
|
}
|