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Added IGNORE_HOSTNAME environment variable. Closes #1151.
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@ -1,9 +1,10 @@
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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 'lib/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 } from 'lib/response';
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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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@ -15,16 +16,35 @@ export default async (req, res) => {
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}
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const ignoreIps = process.env.IGNORE_IP;
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if (ignoreIps) {
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const ips = ignoreIps.split(',').map(n => n.trim());
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const ip = getIpAddress(req);
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const blocked = ips.find(i => {
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if (i === ip) return true;
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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 (i.indexOf('/') > 0) {
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const addr = ipaddr.parse(ip);
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const range = ipaddr.parseCIDR(i);
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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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@ -33,7 +53,7 @@ export default async (req, res) => {
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});
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if (blocked) {
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return ok(res);
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return forbidden(res);
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}
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}
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