Add proxy support

get-json.js

@@ -0,0 +1,71 @@
+'use strict';
+
+const { HttpProxyAgent } = require('http-proxy-agent');
+const { HttpsProxyAgent } = require('https-proxy-agent');
+const https = require('https');
+
+// eslint-disable-next-line no-underscore-dangle
+const _getJSON = (url, callback) => {
+	let agent;
+	if (new URL(url).protocol === 'http:' && process.env.HTTP_PROXY) {
+		agent = new HttpProxyAgent(process.env.HTTP_PROXY);
+	} else if (new URL(url).protocol === 'http:' && process.env.http_proxy) {
+		agent = new HttpProxyAgent(process.env.http_proxy);
+	} else if (new URL(url).protocol === 'https:' && process.env.HTTPS_PROXY) {
+		agent = new HttpsProxyAgent(process.env.HTTPS_PROXY);
+	} else if (new URL(url).protocol === 'https:' && process.env.https_proxy) {
+		agent = new HttpsProxyAgent(process.env.https_proxy);
+	}
+	https.get(url, { agent }, (response) => {
+		let data = '';
+
+		// Handle incoming data
+		response.on('data', (chunk) => {
+			data += chunk;
+		});
+
+		// Handle end of the response
+		response.on('end', () => {
+			let body;
+			try {
+				body = JSON.parse(data);
+			} catch (parseError) {
+				callback(`Parse error: ${parseError}`);
+				return;
+			}
+
+			// Check response status code
+			// eslint-disable-next-line no-magic-numbers
+			if (response.statusCode !== 200) {
+				callback('Unexpected response code.');
+				return;
+			}
+
+			callback(null, body);
+		});
+
+	}).on('error', (error) => {
+		callback(error);
+	});
+};
+
+const getJSON = (url, callback) => {
+	// eslint-disable-next-line no-underscore-dangle
+	let _callback = callback;
+	if (!_callback) {
+		_callback = () => { };
+	}
+	return new Promise((resolve, reject) => {
+		_getJSON(url, (error, body) => {
+			if (error) {
+				reject(error);
+				_callback(error);
+				return;
+			}
+			resolve(body);
+			_callback(null, body);
+		});
+	});
+};
+
+module.exports = getJSON;

get-node-versions.js

@@ -1,6 +1,6 @@
 'use strict';
 
-const getJSON = require('get-json');
+const getJSON = require('./get-json');
 const semver = require('semver');
 
 module.exports = async function getNodeVersions() {

package.json

@@ -49,7 +49,8 @@
 		"colors": "=1.4.0",
 		"fast_array_intersect": "^1.1.0",
 		"get-dep-tree": "^1.0.4",
-		"get-json": "^1.0.1",
+		"http-proxy-agent": "^5.0.0",
+		"https-proxy-agent": "^5.0.1",
 		"json-file-plus": "^3.3.1",
 		"lockfile-info": "^1.0.0",
 		"object.fromentries": "^2.0.7",

test/mock.js

@@ -6,11 +6,11 @@ function mockModule(resolvedSpecifier, replacement) {
 	Module.exports = replacement;
 }
 
-const origGetJSON = require('get-json');
+const origGetJSON = require('../get-json');
 const mockedNodeVersions = require('./mocks/node-versions.json');
 
 mockModule(
-	require.resolve('get-json'),
+	require.resolve('../get-json'),
 	async function getJSON(url) {
 		if (url === 'https://nodejs.org/dist/index.json') {
 			return mockedNodeVersions;

test/mocks/index.js

@@ -2,9 +2,9 @@
 
 const Module = require('module');
 
-const getJSON = require('get-json');
+const getJSON = require('../../get-json');
 
-const id = require.resolve('get-json');
+const id = require.resolve('../../get-json');
 const mod = new Module(id);
 mod.exports = (url, ...args) => {
 	if (url === 'http://nodejs.org/dist/index.json') {