76 lines
2.7 KiB
JavaScript
76 lines
2.7 KiB
JavaScript
const config = require('@/config').value;
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const logger = require('./logger');
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const possibleProtocol = ['http', 'https', 'ftp', 'file', 'data'];
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const pacProxy = (pacUri, pacScript, proxyObj) => {
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let pacUrlHandler = null;
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// Validate PAC_URI / PAC_SCRIPT
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if (pacScript) {
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if (typeof pacScript === 'string') {
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pacUri = 'data:text/javascript;charset=utf-8,' + encodeURIComponent(pacScript);
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} else {
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logger.error('Invalid PAC_SCRIPT, use PAC_URI instead');
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}
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}
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if (pacUri && typeof pacUri === 'string') {
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try {
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pacUrlHandler = new URL(pacUri);
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} catch (error) {
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pacUri = null;
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pacUrlHandler = null;
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logger.error(`Parse PAC_URI error: ${error.stack}`);
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}
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} else {
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pacUri = null;
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}
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// Check if PAC_URI has the right protocol
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if (pacUri && !possibleProtocol.includes(pacUrlHandler?.protocol?.replace(':', ''))) {
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logger.error(`Unsupported PAC protocol: ${pacUrlHandler?.protocol?.replace(':', '')}, expect one of ${possibleProtocol.join(', ')}`);
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pacUri = null;
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pacUrlHandler = null;
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}
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// Validate proxyObj
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if (pacUrlHandler) {
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proxyObj.host = pacUrlHandler.hostname;
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proxyObj.port = Number.parseInt(pacUrlHandler.port) || undefined;
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proxyObj.protocol = pacUrlHandler.protocol.replace(':', '');
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} else {
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proxyObj.protocol = proxyObj.host = proxyObj.port = proxyObj.auth = undefined;
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}
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// Validate PROXY_AUTH
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if (proxyObj.auth && pacUrlHandler) {
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let promptProxyUri = false;
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if (pacUrlHandler.username || pacUrlHandler.password) {
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logger.warn('PAC_URI contains username and/or password, ignoring PROXY_AUTH');
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proxyObj.auth = undefined;
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} else if (['http:', 'https:'].includes(pacUrlHandler.protocol)) {
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logger.info('PROXY_AUTH is set and will be used for requests from Node.js. However, requests from puppeteer will not use it');
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promptProxyUri = true;
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} else {
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logger.warn(`PROXY_AUTH is only supported by HTTP(S) proxies, but got ${pacUrlHandler.protocol}, ignoring`);
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proxyObj.auth = undefined;
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promptProxyUri = true;
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}
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if (promptProxyUri) {
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logger.info('To get rid of this, set PAC_URI like protocol://username:password@host:port and clear PROXY_{AUTH,PROTOCOL,HOST,PORT}');
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}
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}
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// Compatible with unify-proxy
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return {
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proxyUri: pacUri,
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proxyObj,
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proxyUrlHandler: pacUrlHandler,
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};
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};
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module.exports = {
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pacProxy,
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...pacProxy(config.pacUri, config.pacScript, config.proxy),
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};
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