umami/pages/api/collect.js

86 lines
2.1 KiB
JavaScript

const { Resolver } = require('dns').promises;
import isbot from 'isbot';
import ipaddr from 'ipaddr.js';
import { savePageView, saveEvent } from 'lib/queries';
import { useCors, useSession } from 'lib/middleware';
import { getJsonBody, getIpAddress } from 'lib/request';
import { ok, send, badRequest, forbidden } from 'lib/response';
import { createToken } from 'lib/crypto';
import { removeTrailingSlash } from 'lib/url';
export default async (req, res) => {
await useCors(req, res);
if (isbot(req.headers['user-agent'])) {
return ok(res);
}
const ignoreIps = process.env.IGNORE_IP;
const ignoreHostnames = process.env.IGNORE_HOSTNAME;
if (ignoreIps || ignoreHostnames) {
const ips = [];
if (ignoreIps) {
ips.push(...ignoreIps.split(',').map(n => n.trim()));
}
if (ignoreHostnames) {
const resolver = new Resolver();
const promises = ignoreHostnames
.split(',')
.map(n => resolver.resolve4(n.trim()).catch(() => {}));
await Promise.all(promises).then(resolvedIps => {
ips.push(...resolvedIps.filter(n => n).flatMap(n => n));
});
}
const clientIp = getIpAddress(req);
const blocked = ips.find(ip => {
if (ip === clientIp) return true;
// CIDR notation
if (ip.indexOf('/') > 0) {
const addr = ipaddr.parse(clientIp);
const range = ipaddr.parseCIDR(ip);
if (addr.kind() === range[0].kind() && addr.match(range)) return true;
}
return false;
});
if (blocked) {
return forbidden(res);
}
}
await useSession(req, res);
const {
session: { website_id, session_id },
} = req;
const { type, payload } = getJsonBody(req);
let { url, referrer, event_type, event_value } = payload;
if (process.env.REMOVE_TRAILING_SLASH) {
url = removeTrailingSlash(url);
}
if (type === 'pageview') {
await savePageView(website_id, session_id, url, referrer);
} else if (type === 'event') {
await saveEvent(website_id, session_id, url, event_type, event_value);
} else {
return badRequest(res);
}
const token = await createToken({ website_id, session_id });
return send(res, token);
};