lbry.tech/server.js
2018-06-02 13:35:25 +03:00

181 lines
3.9 KiB
JavaScript

// server.js
// env variables
require('dotenv').config();
// fs
var fs = require('fs');
// Async
var async = require("async");
// Express etc
var sslRedirect = require('heroku-ssl-redirect');
var express = require('express');
var path = require('path');
var serveStatic = require('serve-static');
var request = require('request');
var cors = require('cors');
// Cron
var CronJob = require('cron').CronJob;
// Github API
var octokit = require('@octokit/rest')();
if(typeof process.env.GITHUB_OAUTH_TOKEN != 'undefined') {
octokit.authenticate({
type: 'oauth',
token: process.env.GITHUB_OAUTH_TOKEN
});
}
// Redis
var redis = require("redis"),
redisClient = redis.createClient(process.env.REDISCLOUD_URL);
// Slack
if(typeof process.env.SLACK_WEBHOOK_URL != 'undefined') {
var Slack = require('slack-node');
var slack = new Slack();
slack.setWebhook(process.env.SLACK_WEBHOOK_URL);
}
app = express();
// enable ssl redirect
app.use(sslRedirect());
app.use(serveStatic(__dirname + "/content/.vuepress/dist"));
app.use(cors());
app.get('/forward', function(req, res) {
var allowedMethods = ["wallet_send", "resolve", "publish"];
if(typeof req.query.method != "undefined") {
if(allowedMethods.includes(req.query.method)) {
// We should whitelist the query parameters here
if(req.query.method == "wallet_send") {
// Hardcode the wallet_send amount to be always 0.01 always
req.query.amount = 0.01;
// Whitelist claim ids
var allowedClaims = ["fbdcd44a97810522d23d5f1335b8ca04be9d776c", "de7f7fa33e8d879b2bae7238d2bdf827a39f9301", "5b7c7a202201033d99e1be2930d290c127c0f4fe", "a1372cf5523885f5923237bfe522f02f5f054362"];
if(!allowedClaims.includes(req.query.claim_id)) {
res.json({});
}
}
req.query.access_token = process.env.LBRY_DAEMON_ACCESS_TOKEN;
request({
url: "http://daemon.lbry.tech",
qs: req.query
}, function(error, response, body) {
// Should we filter the body parameters before forwarding to user?
body = JSON.parse(body);
if(typeof body.error != "undefined") {
logSlackError('ERROR: Got error from daemon: ' + JSON.stringify(body.error));
}
res.json(body);
});
}
}
});
app.get('/github-feed', function(req, res) {
redisClient.zrevrange('events', 0, 9, function(err, reply) {
var events = [];
reply.forEach(function(item) {
events.push(JSON.parse(item));
});
res.json(events);
});
});
app.get('/*', function(req, res) {
if(fs.existsSync(__dirname + "/.vuepress/dist" + req.path + ".html")) {
res.redirect(req.path + ".html");
} else {
res.status(404);
res.send('Not found');
}
});
var port = process.env.PORT || 8080;
app.listen(port);
logSlackError('Server started at port ' + port);
function updateGithubFeed() {
octokit.activity.getEventsForOrg({
org: 'lbryio',
per_page: 20,
page: 1
}).then(function({data}) {
async.eachSeries(data, function(item, callback) {
var eventString = JSON.stringify(item);
redisClient.zrank('events', eventString, function(err, reply) {
if(reply == null) {
redisClient.zadd('events', item.id, eventString, callback);
} else {
callback();
}
});
}, function() {
// Keep the latest 50 events
redisClient.zremrangebyrank('events', 0, -51);
console.log('Updated Github feed');
});
}).catch(function(err) {
logSlackError('ERROR: Couldnt update Github feed: ' + JSON.stringify(err));
});
}
function logSlackError(text) {
if(typeof slack != 'undefined') {
slack.webhook({
channel: 'dottech-errors',
username: 'lbrytech-bot',
text: text
}, function(err, response) {
});
}
}
// Update Github feed every minute
new CronJob("0 * * * * *", updateGithubFeed, null, true, 'America/Los_Angeles');