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gostexplr
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Sync blockchain script without babel

stuff
xcps 7 years ago
parent
1819eef965
commit
1557733a48
3 changed files with 160 additions and 162 deletions
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  1. 158
      bin/syncBlockchain.babel.js
  2. 160
      bin/syncBlockchain.js
  3. 4
      package.json

158
bin/syncBlockchain.babel.js
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@ -1,158 +0,0 @@
var http = require('http');
var models = require('../models');
var rpcConfig = require('../config/config')['rpc'];
const {username, password, hostname, port} = rpcConfig;
function MakeRPCRequest(postData) {
return new Promise(function(resolve, reject) {
var post_options = {
host: hostname,
port: port,
auth: `${username}:${password}`,
path: '/',
method: 'POST',
headers: {
'Content-Type': 'application/x-www-form-urlencoded',
'Content-Length': Buffer.byteLength(postData)
}
};
var post_req = http.request(post_options, function(res) {
res.setEncoding("utf8");
let body = "";
res.on("data", data => {
body += data;
});
res.on("end", () => {
resolve(body);
});
});
post_req.write(postData);
post_req.end();
});
}
async function saveTransaction(txid, blockHeight) {
const res_tx = await MakeRPCRequest(JSON.stringify({
method: 'getrawtransaction',
params: [txid, 1],
id: 1
}));
const tx = JSON.parse(res_tx)['result'];
// console.log('tx:', tx);
if (tx === null) {
await models.Failure.create({
msg: `${txid} fetching failed`,
});
return;
}
const transaction = await models.Transaction.create({
txid: tx.txid,
BlockHeight: blockHeight,
});
for (var i = 0; i < tx.vout.length; i++) {
const vout = tx.vout[i];
const m_vout = await models.Vout.create({
value: vout.value,
});
for (var y = 0; y < vout.scriptPubKey.addresses.length; y++) {
const address = vout.scriptPubKey.addresses[y];
let m_address = await models.Address.findOne({
where: {
address,
},
});
if (m_address === null) {
m_address = await models.Address.create({
address,
});
}
await m_vout.addAddresses(m_address);
}
await transaction.addVouts(m_vout);
}
for (var i = 0; i < tx.vin.length; i++) {
const vin = tx.vin[i];
if (vin.txid) {
const trans = await models.Transaction.findOne({
where: {
txid: vin.txid,
},
});
if (trans) {
await transaction.addTxtx(trans);
}
}
}
}
async function syncNextBlock(syncedHeight) {
const height = syncedHeight + 1;
const res_hash = await MakeRPCRequest(JSON.stringify({
method: 'getblockhash',
params: [height],
id: 1
}));
const blockHash = JSON.parse(res_hash)['result'];
const res_block = await MakeRPCRequest(JSON.stringify({
method: 'getblock',
params: [blockHash],
id: 1
}));
const block = JSON.parse(res_block)['result'];
block.time = new Date(block.time * 1000);
await models.Block.create(block);
for (var i = 0; i < block.tx.length; i++) {
await saveTransaction(block.tx[i], block.height);
}
if (block.height > 1) {
await models.Block.update({
nextblockhash: block.hash
},{
where: {
hash: block.previousblockhash
}
});
}
return height;
}
async function getCurrentHeight() {
const result = await MakeRPCRequest(JSON.stringify({
method: 'getblockcount',
params: [],
id: 1
}));
return JSON.parse(result)['result'];
}
async function getSyncedHeight() {
const result = await models.Block.findOne({
attributes: ['height'],
order: [['height', 'DESC']],
limit: 1
});
const height = result ? result.height : -1;
return height;
}
async function syncBlockchain() {
let syncedHeight = await getSyncedHeight();
console.log('\x1b[36m%s\x1b[0m', 'syncedHeight is', syncedHeight);
let currentHeight = await getCurrentHeight();
console.log('\x1b[36m%s\x1b[0m', 'currentHeight is', currentHeight);
try {
while (syncedHeight < currentHeight) {
syncedHeight = await syncNextBlock(syncedHeight);
console.log('\x1b[36m%s\x1b[0m', 'syncedHeight: ', syncedHeight)
}
} catch (e) {
console.log('=====', e);
process.exit(0);
}
process.exit(0);
}
syncBlockchain();

160
bin/syncBlockchain.js
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@ -1,2 +1,158 @@
require('babel-register'); var http = require('http');
require('./syncBlockchain.babel.js'); var models = require('../models');
var rpcConfig = require('../config/config')['rpc'];
const {username, password, hostname, port} = rpcConfig;
function MakeRPCRequest(postData) {
return new Promise(function(resolve, reject) {
var post_options = {
host: hostname,
port: port,
auth: `${username}:${password}`,
path: '/',
method: 'POST',
headers: {
'Content-Type': 'application/x-www-form-urlencoded',
'Content-Length': Buffer.byteLength(postData)
}
};
var post_req = http.request(post_options, function(res) {
res.setEncoding("utf8");
let body = "";
res.on("data", data => {
body += data;
});
res.on("end", () => {
resolve(body);
});
});
post_req.write(postData);
post_req.end();
});
}
async function saveTransaction(txid, blockHeight) {
const res_tx = await MakeRPCRequest(JSON.stringify({
method: 'getrawtransaction',
params: [txid, 1],
id: 1
}));
const tx = JSON.parse(res_tx)['result'];
// console.log('tx:', tx);
if (tx === null) {
await models.Failure.create({
msg: `${txid} fetching failed`,
});
return;
}
const transaction = await models.Transaction.create({
txid: tx.txid,
BlockHeight: blockHeight,
});
for (var i = 0; i < tx.vout.length; i++) {
const vout = tx.vout[i];
const m_vout = await models.Vout.create({
value: vout.value,
});
for (var y = 0; y < vout.scriptPubKey.addresses.length; y++) {
const address = vout.scriptPubKey.addresses[y];
let m_address = await models.Address.findOne({
where: {
address,
},
});
if (m_address === null) {
m_address = await models.Address.create({
address,
});
}
await m_vout.addAddresses(m_address);
}
await transaction.addVouts(m_vout);
}
for (var i = 0; i < tx.vin.length; i++) {
const vin = tx.vin[i];
if (vin.txid) {
const trans = await models.Transaction.findOne({
where: {
txid: vin.txid,
},
});
if (trans) {
await transaction.addTxtx(trans);
}
}
}
}
async function syncNextBlock(syncedHeight) {
const height = syncedHeight + 1;
const res_hash = await MakeRPCRequest(JSON.stringify({
method: 'getblockhash',
params: [height],
id: 1
}));
const blockHash = JSON.parse(res_hash)['result'];
const res_block = await MakeRPCRequest(JSON.stringify({
method: 'getblock',
params: [blockHash],
id: 1
}));
const block = JSON.parse(res_block)['result'];
block.time = new Date(block.time * 1000);
await models.Block.create(block);
for (var i = 0; i < block.tx.length; i++) {
await saveTransaction(block.tx[i], block.height);
}
if (block.height > 1) {
await models.Block.update({
nextblockhash: block.hash
},{
where: {
hash: block.previousblockhash
}
});
}
return height;
}
async function getCurrentHeight() {
const result = await MakeRPCRequest(JSON.stringify({
method: 'getblockcount',
params: [],
id: 1
}));
return JSON.parse(result)['result'];
}
async function getSyncedHeight() {
const result = await models.Block.findOne({
attributes: ['height'],
order: [['height', 'DESC']],
limit: 1
});
const height = result ? result.height : -1;
return height;
}
async function syncBlockchain() {
let syncedHeight = await getSyncedHeight();
console.log('\x1b[36m%s\x1b[0m', 'syncedHeight is', syncedHeight);
let currentHeight = await getCurrentHeight();
console.log('\x1b[36m%s\x1b[0m', 'currentHeight is', currentHeight);
try {
while (syncedHeight < currentHeight) {
syncedHeight = await syncNextBlock(syncedHeight);
console.log('\x1b[36m%s\x1b[0m', 'syncedHeight: ', syncedHeight)
}
} catch (e) {
console.log('=====', e);
process.exit(0);
}
process.exit(0);
}
syncBlockchain();

4
package.json
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@ -6,7 +6,8 @@
"scripts": { "scripts": {
"start": "node ./bin/www", "start": "node ./bin/www",
"initdb": "node ./bin/initdb.js", "initdb": "node ./bin/initdb.js",
"syncBlockchain": "node ./bin/syncBlockchain.js" "syncBlockchain": "node ./bin/syncBlockchain.js",
"addN": "node ./bin/addNToVouts.js"
}, },
"repository": { "repository": {
"type": "git", "type": "git",
@ -16,7 +17,6 @@
"node": ">=7.10.1" "node": ">=7.10.1"
}, },
"dependencies": { "dependencies": {
"babel-register": "^6.26.0",
"body-parser": "~1.18.2", "body-parser": "~1.18.2",
"cookie-parser": "~1.4.3", "cookie-parser": "~1.4.3",
"debug": "~2.6.9", "debug": "~2.6.9",

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