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Code Issues Projects Releases Wiki Activity

Implement capability to fund contract with tokens

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This commit is contained in:
Pedro Pombeiro 2018-03-19 21:43:57 +01:00
parent ed558feb7b
commit ab24498d53
4 changed files with 95 additions and 51 deletions
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2
.vscode/launch.json vendored
View File

@ -14,7 +14,7 @@
"debug"
],
"env": {
"WEBHOOK_SECRET": "fa7689e3"
"WEBHOOK_SECRET": ""
},
"port": 9229
},

97
bot/index.js
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@ -2,6 +2,7 @@ const winston = require('winston');
const ethers = require('ethers');
const Wallet = ethers.Wallet;
const Contract = ethers.Contract;
const providers = ethers.providers;
const utils = ethers.utils;
@ -9,6 +10,8 @@ const prices = require('./prices');
const config = require('../config');
const github = require('./github');
const contractAddressString = 'Contract address:';
const logger = winston.createLogger({
level: 'info',
@ -34,7 +37,7 @@ const needsFunding = function (req) {
const hasAddress = function (req) {
const commentBody = req.body.comment.body;
if (commentBody.search('Contract address:') === -1) {
if (commentBody.search(contractAddressString) === -1) {
return false;
} else {
return true;
@ -43,34 +46,15 @@ const hasAddress = function (req) {
const getAddress = function (req) {
const commentBody = req.body.comment.body;
return commentBody.substring(commentBody.search("Contract address:") + 19, commentBody.search("Contract address:") + 61)
}
const getLabelMock = function (req) {
return new Promise((resolve, reject) => {
github.getLabels(req)
.then(labels => {
const bountyLabels = labels.filter(name => config.bountyLabels.hasOwnProperty(name));
if (bountyLabels.length === 1) {
resolve(bountyLabels[0]);
} else {
reject('Error getting bounty labels: ' + bountyLabels);
}
})
.catch((err) => {
reject(err)
});
});
const index = commentBody.search(contractAddressString) + 19
return commentBody.substring(index, index + 42)
}
const getLabel = function (req) {
if (config.debug) {
return getLabelMock(req);
}
return new Promise((resolve, reject) => {
github.getLabels(req)
.then(labels => {
const bountyLabels = labels.filter(name => config.bountyLabels.hasOwnProperty(name));
const bountyLabels = labels.filter(label => config.bountyLabels.hasOwnProperty(label.name));
if (bountyLabels.length === 1) {
resolve(bountyLabels[0]);
} else {
@ -86,7 +70,6 @@ const getAmountMock = function (req) {
return new Promise((resolve, reject) => {
resolve(10);
});
}
const getAmount = function (req) {
@ -98,7 +81,7 @@ const getAmount = function (req) {
.then(function (values) {
let label = values[0];
let tokenPrice = values[1];
let amountToPayDollar = config.priceHour * config.bountyLabels[label];
let amountToPayDollar = config.priceHour * config.bountyLabels[label.name];
resolve(amountToPayDollar / tokenPrice);
})
.catch((err) => {
@ -128,10 +111,7 @@ const error = function (errorMessage) {
}
const sendTransaction = function (to, amount, gasPrice) {
const sendTransaction = async function (to, amount, gasPrice) {
var chainId = providers.Provider.chainId.ropsten;
var chainName = providers.networks.ropsten;
@ -144,28 +124,53 @@ const sendTransaction = function (to, amount, gasPrice) {
const provider = ethers.providers.getDefaultProvider(chainName);
wallet.provider = provider;
if (config.token === 'ETH') {
const transaction = {
gasLimit: config.gasLimit,
gasPrice: gasPrice,
to: to,
value: amount,
chainId: chainId
};
return await wallet.sendTransaction(transaction);
} else {
let hash = null;
async function getAddress() { return wallet.address; }
async function sign(transaction) { return wallet.sign(transaction); }
var transaction = {
gasLimit: config.gasLimit,
gasPrice: gasPrice,
to: to,
value: amount,
chainId: chainId
};
async function resolveName(addressOrName) { return await provider.resolveName(addressOrName); }
async function estimateGas(transaction) { return await provider.estimateGas(transaction); }
async function getGasPrice() { return await provider.getGasPrice(); }
async function getTransactionCount(blockTag) { return await provider.getTransactionCount(blockTag); }
async function sendTransaction(transaction) {
hash = await provider.sendTransaction(transaction);
return hash;
}
const customSigner = {
getAddress: getAddress,
provider: {
resolveName: resolveName,
estimateGas: estimateGas,
getGasPrice: getGasPrice,
getTransactionCount: getTransactionCount,
sendTransaction: sendTransaction
},
sign: sign
}
return new Promise((resolve, reject) => {
wallet.sendTransaction(transaction)
.then(function(hash) {
logTransaction(hash);
resolve(hash);
}).catch(function(err) {
reject(err);
});
});
const tokenContract = config.tokenContracts[config.token];
const contractAddress = tokenContract.address;
const contract = new Contract(contractAddress, tokenContract.abi, customSigner);
const bigNumberAmount = ethers.utils.bigNumberify(amount);
await contract.transfer(to, bigNumberAmount);
return hash;
}
}
module.exports = {
needsFunding: needsFunding,
getAddress: getAddress,

39
config/default.js
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@ -7,6 +7,42 @@ const BOUNTY_LABELS = {
'bounty-xl': 10000
}
const ERC20_ABI = [
{
"constant": false,
"inputs": [
{
"name": "_to",
"type": "address"
},
{
"name": "_amount",
"type": "uint256"
}
],
"name": "transfer",
"outputs": [
{
"name": "success",
"type": "bool"
}
],
"payable": false,
"type": "function"
}
];
const TOKEN_CONTRACTS = {
'STT': {
address: '0xc55cF4B03948D7EBc8b9E8BAD92643703811d162',
abi: ERC20_ABI
},
'SNT': {
address: '0x744d70fdbe2ba4cf95131626614a1763df805b9e',
abi: ERC20_ABI
}
}
module.exports = {
// Debug mode for testing the bot
debug: true,
@ -38,6 +74,9 @@ module.exports = {
// Bounty Labels for the issues and the correspondent hours (e.g. {'bounty-xs': 3})
bountyLabels: BOUNTY_LABELS,
// Contract info for the different supported tokens
tokenContracts: TOKEN_CONTRACTS,
// username for the bot which has to comment for starting the process (e.g. status-bounty-)
githubUsername: 'status-open-bounty',

8
index.js
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@ -96,17 +96,17 @@ const processRequest = function (req) {
return new Promise((resolve, reject) => {
Promise.all([amountPromise, gasPricePromise])
.then(function (results) {
let amount = results[0];
let gasPrice = results[1];
const amount = results[0];
const gasPrice = results[1];
bot.sendTransaction(to, amount, gasPrice)
.then(function () {
.then(function (hash) {
bot.logTransaction(hash);
resolve();
})
.catch(function (err) {
reject(err);
});
})
.catch(function (err) {
reject(err);