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