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style: adopt formatting for CCTV and radio provider modules
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Sameh Khamis committed
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commit
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@@ -2,44 +2,67 @@ import https from 'node:https';
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import { Readable } from 'node:stream';
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import { isNonGlobalIpv4 } from './stations.js';
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export function radioMirrorOrigin(value) {
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const hostname = String(value ?? '').toLowerCase().replace(/\.$/, '');
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const hostname = String(value ?? '')
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.toLowerCase()
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.replace(/\.$/, '');
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if (!/^[a-z0-9-]+\.api\.radio-browser\.info$/.test(hostname)) return null;
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return `https://${hostname}`;
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}
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/** Return whether a resolved Radio Browser address is safe for an outbound request. */
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export function isPublicRadioAddress(value) {
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const address = String(value ?? '').trim().toLowerCase().replace(/^\[|\]$/g, '');
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const address = String(value ?? '')
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.trim()
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.toLowerCase()
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.replace(/^\[|\]$/g, '');
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if (!address) return false;
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if (!address.includes(':')) {
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const ipv4 = address.split('.');
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return ipv4.length === 4
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&& ipv4.every((part) => /^\d{1,3}$/.test(part) && Number(part) <= 255)
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&& !isNonGlobalIpv4(address);
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return (
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ipv4.length === 4 &&
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ipv4.every((part) => /^\d{1,3}$/.test(part) && Number(part) <= 255) &&
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!isNonGlobalIpv4(address)
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);
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}
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const pieces = address.split('::');
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if (pieces.length > 2) return false;
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const left = pieces[0] ? pieces[0].split(':') : [];
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const right = pieces[1] ? pieces[1].split(':') : [];
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const missing = 8 - left.length - right.length;
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if ((pieces.length === 1 && missing !== 0) || (pieces.length === 2 && missing < 1)) return false;
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if (
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(pieces.length === 1 && missing !== 0) ||
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(pieces.length === 2 && missing < 1)
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)
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return false;
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const groups = [...left, ...Array(Math.max(0, missing)).fill('0'), ...right];
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if (groups.length !== 8 || groups.some((group) => !/^[0-9a-f]{1,4}$/.test(group))) return false;
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const numeric = groups.reduce((total, group) => (total << 16n) | BigInt(`0x${group}`), 0n);
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const inCidr = (base, prefix) => {
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const shift = 128n - BigInt(prefix);
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return (numeric >> shift) === (base >> shift);
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};
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const base = (text) => text.split(':').reduce(
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(total, group) => (total << 16n) | BigInt(`0x${group || '0'}`),
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if (
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groups.length !== 8 ||
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groups.some((group) => !/^[0-9a-f]{1,4}$/.test(group))
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)
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return false;
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const numeric = groups.reduce(
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(total, group) => (total << 16n) | BigInt(`0x${group}`),
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0n,
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);
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const inCidr = (base, prefix) => {
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const shift = 128n - BigInt(prefix);
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return numeric >> shift === base >> shift;
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};
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const base = (text) =>
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text
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.split(':')
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.reduce(
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(total, group) => (total << 16n) | BigInt(`0x${group || '0'}`),
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0n,
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);
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const cidr = (text, prefix) => inCidr(base(text), prefix);
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return cidr('2000:0:0:0:0:0:0:0', 3)
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&& !cidr('2001:0:0:0:0:0:0:0', 23)
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&& !cidr('2001:db8:0:0:0:0:0:0', 32)
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&& !cidr('2002:0:0:0:0:0:0:0', 16)
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&& !cidr('3fff:0:0:0:0:0:0:0', 20);
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return (
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cidr('2000:0:0:0:0:0:0:0', 3) &&
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!cidr('2001:0:0:0:0:0:0:0', 23) &&
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!cidr('2001:db8:0:0:0:0:0:0', 32) &&
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!cidr('2002:0:0:0:0:0:0:0', 16) &&
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!cidr('3fff:0:0:0:0:0:0:0', 20)
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);
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}
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export function radioProxyDestination(value) {
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@@ -51,16 +74,18 @@ export function radioProxyDestination(value) {
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}
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const origin = radioMirrorOrigin(url.hostname);
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if (
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!origin
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|| url.origin !== origin
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|| url.username
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|| url.password
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|| url.port
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|| url.hash
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) return null;
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const discovery = url.hostname.toLowerCase() === 'all.api.radio-browser.info'
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&& url.pathname === '/json/servers'
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&& !url.search;
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!origin ||
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url.origin !== origin ||
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url.username ||
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url.password ||
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url.port ||
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url.hash
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)
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return null;
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const discovery =
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url.hostname.toLowerCase() === 'all.api.radio-browser.info' &&
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url.pathname === '/json/servers' &&
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!url.search;
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const directory = url.pathname === '/json/stations/search';
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const click = /^\/json\/url\/[0-9a-f-]+$/i.test(url.pathname) && !url.search;
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return discovery || directory || click ? url : null;
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@@ -70,9 +95,15 @@ export async function resolveRadioProxyAddresses(hostname, lookupImpl) {
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const resolved = await lookupImpl(hostname, { all: true, verbatim: true });
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const rows = Array.isArray(resolved) ? resolved : [resolved];
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const addresses = rows
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.map((row) => ({ address: String(row?.address || ''), family: Number(row?.family) || undefined }))
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.map((row) => ({
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address: String(row?.address || ''),
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family: Number(row?.family) || undefined,
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}))
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.filter((row) => row.address);
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if (!addresses.length || addresses.some((row) => !isPublicRadioAddress(row.address))) {
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if (
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!addresses.length ||
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addresses.some((row) => !isPublicRadioAddress(row.address))
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) {
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throw new Error('Radio Browser resolved to a forbidden address');
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}
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return addresses;
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@@ -81,26 +112,33 @@ export async function resolveRadioProxyAddresses(hostname, lookupImpl) {
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export function fetchPinnedRadioResponse(url, options, addresses) {
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return new Promise((resolve, reject) => {
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const address = addresses[0];
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const request = https.request(url, {
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method: 'GET',
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headers: options.headers,
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signal: options.signal,
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lookup(_hostname, lookupOptions, callback) {
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if (lookupOptions?.all) callback(null, addresses);
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else callback(null, address.address, address.family);
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const request = https.request(
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url,
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{
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method: 'GET',
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headers: options.headers,
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signal: options.signal,
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lookup(_hostname, lookupOptions, callback) {
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if (lookupOptions?.all) callback(null, addresses);
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else callback(null, address.address, address.family);
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},
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},
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}, (response) => {
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const headers = new Headers();
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for (const [name, value] of Object.entries(response.headers)) {
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if (Array.isArray(value)) value.forEach((item) => headers.append(name, item));
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else if (value !== undefined) headers.set(name, String(value));
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}
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resolve(new Response(Readable.toWeb(response), {
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status: response.statusCode || 500,
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statusText: response.statusMessage || '',
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headers,
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}));
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});
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(response) => {
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const headers = new Headers();
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for (const [name, value] of Object.entries(response.headers)) {
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if (Array.isArray(value))
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value.forEach((item) => headers.append(name, item));
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else if (value !== undefined) headers.set(name, String(value));
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}
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resolve(
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new Response(Readable.toWeb(response), {
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status: response.statusCode || 500,
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statusText: response.statusMessage || '',
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headers,
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}),
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);
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},
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);
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request.on('error', reject);
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request.end();
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});
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