test

vscode-server-linux-x64-web/node_modules/@vscode/proxy-agent/out/index.js

@@ -0,0 +1,662 @@
+"use strict";
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Nathan Rajlich, Félicien François, Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    var desc = Object.getOwnPropertyDescriptor(m, k);
+    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
+      desc = { enumerable: true, get: function() { return m[k]; } };
+    }
+    Object.defineProperty(o, k2, desc);
+}) : (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    o[k2] = m[k];
+}));
+var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
+    Object.defineProperty(o, "default", { enumerable: true, value: v });
+}) : function(o, v) {
+    o["default"] = v;
+});
+var __importStar = (this && this.__importStar) || function (mod) {
+    if (mod && mod.__esModule) return mod;
+    var result = {};
+    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    __setModuleDefault(result, mod);
+    return result;
+};
+var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
+    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
+    return new (P || (P = Promise))(function (resolve, reject) {
+        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
+        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
+        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
+        step((generator = generator.apply(thisArg, _arguments || [])).next());
+    });
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.testCertificates = exports.toLogString = exports.resetCaches = exports.loadSystemCertificates = exports.createTlsPatch = exports.createNetPatch = exports.createHttpPatch = exports.createProxyResolver = exports.LogLevel = void 0;
+const net = __importStar(require("net"));
+const tls = __importStar(require("tls"));
+const nodeurl = __importStar(require("url"));
+const os = __importStar(require("os"));
+const fs = __importStar(require("fs"));
+const cp = __importStar(require("child_process"));
+const crypto = __importStar(require("crypto"));
+const agent_1 = __importStar(require("./agent"));
+var LogLevel;
+(function (LogLevel) {
+    LogLevel[LogLevel["Trace"] = 0] = "Trace";
+    LogLevel[LogLevel["Debug"] = 1] = "Debug";
+    LogLevel[LogLevel["Info"] = 2] = "Info";
+    LogLevel[LogLevel["Warning"] = 3] = "Warning";
+    LogLevel[LogLevel["Error"] = 4] = "Error";
+    LogLevel[LogLevel["Critical"] = 5] = "Critical";
+    LogLevel[LogLevel["Off"] = 6] = "Off";
+})(LogLevel || (exports.LogLevel = LogLevel = {}));
+const maxCacheEntries = 5000; // Cache can grow twice that much due to 'oldCache'.
+function createProxyResolver(params) {
+    const { getProxyURL, log, getLogLevel, proxyResolveTelemetry: proxyResolverTelemetry, useHostProxy, env } = params;
+    let envProxy = proxyFromConfigURL(env.https_proxy || env.HTTPS_PROXY || env.http_proxy || env.HTTP_PROXY); // Not standardized.
+    let envNoProxy = noProxyFromEnv(env.no_proxy || env.NO_PROXY); // Not standardized.
+    let cacheRolls = 0;
+    let oldCache = new Map();
+    let cache = new Map();
+    function getCacheKey(url) {
+        // Expecting proxies to usually be the same per scheme://host:port. Assuming that for performance.
+        return nodeurl.format(Object.assign(Object.assign({}, url), { pathname: undefined, search: undefined, hash: undefined }));
+    }
+    function getCachedProxy(key) {
+        let proxy = cache.get(key);
+        if (proxy) {
+            return proxy;
+        }
+        proxy = oldCache.get(key);
+        if (proxy) {
+            oldCache.delete(key);
+            cacheProxy(key, proxy);
+        }
+        return proxy;
+    }
+    function cacheProxy(key, proxy) {
+        cache.set(key, proxy);
+        if (cache.size >= maxCacheEntries) {
+            oldCache = cache;
+            cache = new Map();
+            cacheRolls++;
+            log.debug('ProxyResolver#cacheProxy cacheRolls', cacheRolls);
+        }
+    }
+    let timeout;
+    let count = 0;
+    let duration = 0;
+    let errorCount = 0;
+    let cacheCount = 0;
+    let envCount = 0;
+    let settingsCount = 0;
+    let localhostCount = 0;
+    let envNoProxyCount = 0;
+    let configNoProxyCount = 0;
+    let results = [];
+    function logEvent() {
+        timeout = undefined;
+        proxyResolverTelemetry({ count, duration, errorCount, cacheCount, cacheSize: cache.size, cacheRolls, envCount, settingsCount, localhostCount, envNoProxyCount, configNoProxyCount, results });
+        count = duration = errorCount = cacheCount = envCount = settingsCount = localhostCount = envNoProxyCount = configNoProxyCount = 0;
+        results = [];
+    }
+    function resolveProxy(flags, req, opts, url, callback) {
+        if (!timeout) {
+            timeout = setTimeout(logEvent, 10 * 60 * 1000);
+        }
+        const stackText = ''; // getLogLevel() === LogLevel.Trace ? '\n' + new Error('Error for stack trace').stack : '';
+        addCertificatesV1(params, flags.addCertificatesV1, opts, () => {
+            useProxySettings(useHostProxy, flags.useProxySettings, req, opts, url, stackText, callback);
+        });
+    }
+    function useProxySettings(useHostProxy, useProxySettings, req, opts, url, stackText, callback) {
+        if (!useProxySettings) {
+            callback('DIRECT');
+            return;
+        }
+        const parsedUrl = nodeurl.parse(url); // Coming from Node's URL, sticking with that.
+        const hostname = parsedUrl.hostname;
+        if (hostname === 'localhost' || hostname === '127.0.0.1' || hostname === '::1' || hostname === '::ffff:127.0.0.1') {
+            localhostCount++;
+            callback('DIRECT');
+            log.debug('ProxyResolver#resolveProxy localhost', url, 'DIRECT', stackText);
+            return;
+        }
+        const { secureEndpoint } = opts;
+        const defaultPort = secureEndpoint ? 443 : 80;
+        // if there are any config entries present then env variables are ignored
+        let noProxyConfig = params.getNoProxyConfig ? params.getNoProxyConfig() : [];
+        if (noProxyConfig.length) {
+            let configNoProxy = noProxyFromConfig(noProxyConfig); // Not standardized.
+            if (typeof hostname === 'string' && configNoProxy(hostname, String(parsedUrl.port || defaultPort))) {
+                configNoProxyCount++;
+                callback('DIRECT');
+                log.debug('ProxyResolver#resolveProxy configNoProxy', url, 'DIRECT', stackText);
+                return;
+            }
+        }
+        else {
+            if (typeof hostname === 'string' && envNoProxy(hostname, String(parsedUrl.port || defaultPort))) {
+                envNoProxyCount++;
+                callback('DIRECT');
+                log.debug('ProxyResolver#resolveProxy envNoProxy', url, 'DIRECT', stackText);
+                return;
+            }
+        }
+        let settingsProxy = proxyFromConfigURL(getProxyURL());
+        if (settingsProxy) {
+            settingsCount++;
+            callback(settingsProxy);
+            log.debug('ProxyResolver#resolveProxy settings', url, settingsProxy, stackText);
+            return;
+        }
+        if (envProxy) {
+            envCount++;
+            callback(envProxy);
+            log.debug('ProxyResolver#resolveProxy env', url, envProxy, stackText);
+            return;
+        }
+        const key = getCacheKey(parsedUrl);
+        const proxy = getCachedProxy(key);
+        if (proxy) {
+            cacheCount++;
+            collectResult(results, proxy, parsedUrl.protocol === 'https:' ? 'HTTPS' : 'HTTP', req);
+            callback(proxy);
+            log.debug('ProxyResolver#resolveProxy cached', url, proxy, stackText);
+            return;
+        }
+        if (!useHostProxy) {
+            callback('DIRECT');
+            log.debug('ProxyResolver#resolveProxy unconfigured', url, 'DIRECT', stackText);
+            return;
+        }
+        const start = Date.now();
+        params.resolveProxy(url) // Use full URL to ensure it is an actually used one.
+            .then(proxy => {
+            if (proxy) {
+                cacheProxy(key, proxy);
+                collectResult(results, proxy, parsedUrl.protocol === 'https:' ? 'HTTPS' : 'HTTP', req);
+            }
+            callback(proxy);
+            log.debug('ProxyResolver#resolveProxy', url, proxy, stackText);
+        }).then(() => {
+            count++;
+            duration = Date.now() - start + duration;
+        }, err => {
+            errorCount++;
+            const fallback = cache.values().next().value; // fall back to any proxy (https://github.com/microsoft/vscode/issues/122825)
+            callback(fallback);
+            log.error('ProxyResolver#resolveProxy', fallback, toErrorMessage(err), stackText);
+        });
+    }
+    return resolveProxy;
+}
+exports.createProxyResolver = createProxyResolver;
+function collectResult(results, resolveProxy, connection, req) {
+    const proxy = resolveProxy ? String(resolveProxy).trim().split(/\s+/, 1)[0] : 'EMPTY';
+    req.on('response', res => {
+        const code = `HTTP_${res.statusCode}`;
+        const result = findOrCreateResult(results, proxy, connection, code);
+        result.count++;
+    });
+    req.on('error', err => {
+        const code = err && typeof err.code === 'string' && err.code || 'UNKNOWN_ERROR';
+        const result = findOrCreateResult(results, proxy, connection, code);
+        result.count++;
+    });
+}
+function findOrCreateResult(results, proxy, connection, code) {
+    for (const result of results) {
+        if (result.proxy === proxy && result.connection === connection && result.code === code) {
+            return result;
+        }
+    }
+    const result = { proxy, connection, code, count: 0 };
+    results.push(result);
+    return result;
+}
+function proxyFromConfigURL(configURL) {
+    if (!configURL) {
+        return undefined;
+    }
+    const url = (configURL || '').trim();
+    const i = url.indexOf('://');
+    if (i === -1) {
+        return undefined;
+    }
+    const scheme = url.substr(0, i).toLowerCase();
+    const proxy = url.substr(i + 3);
+    if (scheme === 'http') {
+        return 'PROXY ' + proxy;
+    }
+    else if (scheme === 'https') {
+        return 'HTTPS ' + proxy;
+    }
+    else if (scheme === 'socks' || scheme === 'socks5' || scheme === 'socks5h') {
+        return 'SOCKS ' + proxy;
+    }
+    else if (scheme === 'socks4' || scheme === 'socks4a') {
+        return 'SOCKS4 ' + proxy;
+    }
+    return undefined;
+}
+function shouldBypassProxy(value) {
+    if (value.includes("*")) {
+        return () => true;
+    }
+    const filters = value
+        .map(s => s.trim().split(':', 2))
+        .map(([name, port]) => ({ name, port }))
+        .filter(filter => !!filter.name)
+        .map(({ name, port }) => {
+        const domain = name[0] === '.' ? name : `.${name}`;
+        return { domain, port };
+    });
+    if (!filters.length) {
+        return () => false;
+    }
+    return (hostname, port) => filters.some(({ domain, port: filterPort }) => {
+        return `.${hostname.toLowerCase()}`.endsWith(domain) && (!filterPort || port === filterPort);
+    });
+}
+function noProxyFromEnv(envValue) {
+    const value = (envValue || '')
+        .trim()
+        .toLowerCase()
+        .split(',');
+    return shouldBypassProxy(value);
+}
+function noProxyFromConfig(noProxy) {
+    const value = noProxy
+        .map((item) => item.trim().toLowerCase());
+    return shouldBypassProxy(value);
+}
+function createHttpPatch(params, originals, resolveProxy) {
+    return {
+        get: patch(originals.get),
+        request: patch(originals.request)
+    };
+    function patch(original) {
+        function patched(url, options, callback) {
+            if (typeof url !== 'string' && !(url && url.searchParams)) {
+                callback = options;
+                options = url;
+                url = null;
+            }
+            if (typeof options === 'function') {
+                callback = options;
+                options = null;
+            }
+            options = options || {};
+            if (options.socketPath) {
+                return original.apply(null, arguments);
+            }
+            const originalAgent = options.agent;
+            if (originalAgent === true) {
+                throw new Error('Unexpected agent option: true');
+            }
+            const isHttps = originals.globalAgent.protocol === 'https:';
+            const optionsPatched = originalAgent instanceof agent_1.PacProxyAgent;
+            const config = params.getProxySupport();
+            const useProxySettings = !optionsPatched && (config === 'override' || config === 'fallback' || (config === 'on' && originalAgent === undefined));
+            const addCertificatesV1 = !optionsPatched && params.addCertificatesV1() && isHttps && !options.ca;
+            if (useProxySettings || addCertificatesV1) {
+                if (url) {
+                    const parsed = typeof url === 'string' ? new nodeurl.URL(url) : url;
+                    const urlOptions = {
+                        protocol: parsed.protocol,
+                        hostname: parsed.hostname.lastIndexOf('[', 0) === 0 ? parsed.hostname.slice(1, -1) : parsed.hostname,
+                        port: parsed.port,
+                        path: `${parsed.pathname}${parsed.search}`
+                    };
+                    if (parsed.username || parsed.password) {
+                        options.auth = `${parsed.username}:${parsed.password}`;
+                    }
+                    options = Object.assign(Object.assign({}, urlOptions), options);
+                }
+                else {
+                    options = Object.assign({}, options);
+                }
+                const resolveP = (req, opts, url) => new Promise(resolve => resolveProxy({ useProxySettings, addCertificatesV1 }, req, opts, url, resolve));
+                const host = options.hostname || options.host;
+                const isLocalhost = !host || host === 'localhost' || host === '127.0.0.1'; // Avoiding https://github.com/microsoft/vscode/issues/120354
+                options.agent = (0, agent_1.default)(resolveP, {
+                    originalAgent: (!useProxySettings || isLocalhost || config === 'fallback') ? originalAgent : undefined,
+                    lookupProxyAuthorization: params.lookupProxyAuthorization,
+                });
+                return original(options, callback);
+            }
+            return original.apply(null, arguments);
+        }
+        return patched;
+    }
+}
+exports.createHttpPatch = createHttpPatch;
+function createNetPatch(params, originals) {
+    return {
+        connect: patchNetConnect(params, originals.connect),
+    };
+}
+exports.createNetPatch = createNetPatch;
+function patchNetConnect(params, original) {
+    function connect(...args) {
+        if (params.getLogLevel() === LogLevel.Trace) {
+            params.log.trace('ProxyResolver#net.connect', toLogString(args));
+        }
+        if (!params.addCertificatesV2()) {
+            return original.apply(null, arguments);
+        }
+        const socket = new net.Socket();
+        socket.connecting = true;
+        getOrLoadAdditionalCertificates(params)
+            .then(() => {
+            const options = args.find(arg => arg && typeof arg === 'object');
+            if (options === null || options === void 0 ? void 0 : options.timeout) {
+                socket.setTimeout(options.timeout);
+            }
+            socket.connect.apply(socket, arguments);
+        })
+            .catch(err => {
+            params.log.error('ProxyResolver#net.connect', toErrorMessage(err));
+        });
+        return socket;
+    }
+    return connect;
+}
+function createTlsPatch(params, originals) {
+    return {
+        connect: patchTlsConnect(params, originals.connect),
+        createSecureContext: patchCreateSecureContext(originals.createSecureContext),
+    };
+}
+exports.createTlsPatch = createTlsPatch;
+function patchTlsConnect(params, original) {
+    function connect(...args) {
+        if (params.getLogLevel() === LogLevel.Trace) {
+            params.log.trace('ProxyResolver#tls.connect', toLogString(args));
+        }
+        let options = args.find(arg => arg && typeof arg === 'object');
+        if (!params.addCertificatesV2() || (options === null || options === void 0 ? void 0 : options.ca)) {
+            return original.apply(null, arguments);
+        }
+        let secureConnectListener = args.find(arg => typeof arg === 'function');
+        if (!options) {
+            options = {};
+            const listenerIndex = args.findIndex(arg => typeof arg === 'function');
+            if (listenerIndex !== -1) {
+                args[listenerIndex - 1] = options;
+            }
+            else {
+                args[2] = options;
+            }
+        }
+        else {
+            options = Object.assign({}, options);
+        }
+        const port = typeof args[0] === 'number' ? args[0]
+            : typeof args[0] === 'string' && !isNaN(Number(args[0])) ? Number(args[0]) // E.g., http2 module passes port as string.
+                : options.port;
+        const host = typeof args[1] === 'string' ? args[1] : options.host;
+        let tlsSocket;
+        if (options.socket) {
+            if (!options.secureContext) {
+                options.secureContext = tls.createSecureContext(options);
+            }
+            if (!_certificates) {
+                params.log.trace('ProxyResolver#tls.connect waiting for existing socket connect');
+                options.socket.once('connect', () => {
+                    params.log.trace('ProxyResolver#tls.connect got existing socket connect - adding certs');
+                    for (const cert of _certificates || []) {
+                        options.secureContext.context.addCACert(cert);
+                    }
+                });
+            }
+            else {
+                params.log.trace('ProxyResolver#tls.connect existing socket already connected - adding certs');
+                for (const cert of _certificates) {
+                    options.secureContext.context.addCACert(cert);
+                }
+            }
+        }
+        else {
+            if (!options.secureContext) {
+                options.secureContext = tls.createSecureContext(options);
+            }
+            params.log.trace('ProxyResolver#tls.connect creating unconnected socket');
+            const socket = options.socket = new net.Socket();
+            socket.connecting = true;
+            getOrLoadAdditionalCertificates(params)
+                .then(caCertificates => {
+                params.log.trace('ProxyResolver#tls.connect adding certs before connecting socket');
+                for (const cert of caCertificates) {
+                    options.secureContext.context.addCACert(cert);
+                }
+                if (options === null || options === void 0 ? void 0 : options.timeout) {
+                    socket.setTimeout(options.timeout);
+                    socket.once('timeout', () => {
+                        tlsSocket.emit('timeout');
+                    });
+                }
+                socket.connect(Object.assign({ port: port, host }, options));
+            })
+                .catch(err => {
+                params.log.error('ProxyResolver#tls.connect', toErrorMessage(err));
+            });
+        }
+        if (typeof args[1] === 'string') {
+            tlsSocket = original(port, host, options, secureConnectListener);
+        }
+        else if (typeof args[0] === 'number' || typeof args[0] === 'string' && !isNaN(Number(args[0]))) {
+            tlsSocket = original(port, options, secureConnectListener);
+        }
+        else {
+            tlsSocket = original(options, secureConnectListener);
+        }
+        return tlsSocket;
+    }
+    return connect;
+}
+function patchCreateSecureContext(original) {
+    return function (details) {
+        const context = original.apply(null, arguments);
+        const certs = details === null || details === void 0 ? void 0 : details._vscodeAdditionalCaCerts;
+        if (certs) {
+            for (const cert of certs) {
+                context.context.addCACert(cert);
+            }
+        }
+        return context;
+    };
+}
+function addCertificatesV1(params, addCertificatesV1, opts, callback) {
+    if (addCertificatesV1) {
+        getOrLoadAdditionalCertificates(params)
+            .then(caCertificates => {
+            opts._vscodeAdditionalCaCerts = caCertificates;
+            callback();
+        })
+            .catch(err => {
+            params.log.error('ProxyResolver#addCertificatesV1', toErrorMessage(err));
+        });
+    }
+    else {
+        callback();
+    }
+}
+let _certificatesPromise;
+let _certificates;
+function getOrLoadAdditionalCertificates(params) {
+    return __awaiter(this, void 0, void 0, function* () {
+        if (!_certificatesPromise) {
+            _certificatesPromise = (() => __awaiter(this, void 0, void 0, function* () {
+                return _certificates = yield params.loadAdditionalCertificates();
+            }))();
+        }
+        return _certificatesPromise;
+    });
+}
+let _systemCertificatesPromise;
+function loadSystemCertificates(params) {
+    return __awaiter(this, void 0, void 0, function* () {
+        if (!_systemCertificatesPromise) {
+            _systemCertificatesPromise = (() => __awaiter(this, void 0, void 0, function* () {
+                try {
+                    const certs = yield readSystemCertificates();
+                    params.log.debug('ProxyResolver#loadSystemCertificates count', certs.length);
+                    const now = Date.now();
+                    const filtered = certs
+                        .filter(cert => {
+                        try {
+                            const parsedCert = new crypto.X509Certificate(cert);
+                            const parsedDate = Date.parse(parsedCert.validTo);
+                            return isNaN(parsedDate) || parsedDate > now;
+                        }
+                        catch (err) {
+                            params.log.debug('ProxyResolver#loadSystemCertificates parse error', toErrorMessage(err));
+                            return false;
+                        }
+                    });
+                    params.log.debug('ProxyResolver#loadSystemCertificates count filtered', filtered.length);
+                    return filtered;
+                }
+                catch (err) {
+                    params.log.error('ProxyResolver#loadSystemCertificates error', toErrorMessage(err));
+                    return [];
+                }
+            }))();
+        }
+        return _systemCertificatesPromise;
+    });
+}
+exports.loadSystemCertificates = loadSystemCertificates;
+function resetCaches() {
+    _certificatesPromise = undefined;
+    _certificates = undefined;
+    _systemCertificatesPromise = undefined;
+}
+exports.resetCaches = resetCaches;
+function readSystemCertificates() {
+    return __awaiter(this, void 0, void 0, function* () {
+        if (process.platform === 'win32') {
+            return readWindowsCaCertificates();
+        }
+        if (process.platform === 'darwin') {
+            return readMacCaCertificates();
+        }
+        if (process.platform === 'linux') {
+            return readLinuxCaCertificates();
+        }
+        return [];
+    });
+}
+function readWindowsCaCertificates() {
+    return __awaiter(this, void 0, void 0, function* () {
+        // @ts-ignore Windows only
+        const winCA = yield Promise.resolve().then(() => __importStar(require('@vscode/windows-ca-certs')));
+        let ders = [];
+        const store = new winCA.Crypt32();
+        try {
+            let der;
+            while (der = store.next()) {
+                ders.push(der);
+            }
+        }
+        finally {
+            store.done();
+        }
+        const certs = new Set(ders.map(derToPem));
+        return Array.from(certs);
+    });
+}
+function readMacCaCertificates() {
+    return __awaiter(this, void 0, void 0, function* () {
+        const stdout = yield new Promise((resolve, reject) => {
+            const child = cp.spawn('/usr/bin/security', ['find-certificate', '-a', '-p']);
+            const stdout = [];
+            child.stdout.setEncoding('utf8');
+            child.stdout.on('data', str => stdout.push(str));
+            child.on('error', reject);
+            child.on('exit', code => code ? reject(code) : resolve(stdout.join('')));
+        });
+        const certs = new Set(stdout.split(/(?=-----BEGIN CERTIFICATE-----)/g)
+            .filter(pem => !!pem.length));
+        return Array.from(certs);
+    });
+}
+const linuxCaCertificatePaths = [
+    '/etc/ssl/certs/ca-certificates.crt',
+    '/etc/ssl/certs/ca-bundle.crt',
+    '/etc/ssl/ca-bundle.pem', // OpenSUSE
+];
+function readLinuxCaCertificates() {
+    return __awaiter(this, void 0, void 0, function* () {
+        for (const certPath of linuxCaCertificatePaths) {
+            try {
+                const content = yield fs.promises.readFile(certPath, { encoding: 'utf8' });
+                const certs = new Set(content.split(/(?=-----BEGIN CERTIFICATE-----)/g)
+                    .filter(pem => !!pem.length));
+                return Array.from(certs);
+            }
+            catch (err) {
+                if ((err === null || err === void 0 ? void 0 : err.code) !== 'ENOENT') {
+                    throw err;
+                }
+            }
+        }
+        return [];
+    });
+}
+function derToPem(blob) {
+    const lines = ['-----BEGIN CERTIFICATE-----'];
+    const der = blob.toString('base64');
+    for (let i = 0; i < der.length; i += 64) {
+        lines.push(der.substr(i, 64));
+    }
+    lines.push('-----END CERTIFICATE-----', '');
+    return lines.join(os.EOL);
+}
+function toErrorMessage(err) {
+    return err && (err.stack || err.message) || String(err);
+}
+function toLogString(args) {
+    return `[${args.map(arg => JSON.stringify(arg, (key, value) => {
+        const t = typeof value;
+        if (t === 'object') {
+            if (key) {
+                if ((key === 'ca' || key === '_vscodeAdditionalCaCerts') && Array.isArray(value)) {
+                    return `[${value.length} certs]`;
+                }
+                if (key === 'ca' && (typeof value === 'string' || Buffer.isBuffer(value))) {
+                    return `[${(value.toString().match(/-----BEGIN CERTIFICATE-----/g) || []).length} certs]`;
+                }
+                return !value || value.toString ? String(value) : Object.prototype.toString.call(value);
+            }
+            else {
+                return value;
+            }
+        }
+        if (t === 'function') {
+            return `[Function: ${value.name}]`;
+        }
+        if (t === 'bigint') {
+            return String(value);
+        }
+        if (t === 'string' && value.length > 25) {
+            const len = `[${value.length} chars]`;
+            return `${value.substr(0, 25 - len.length)}${len}`;
+        }
+        return value;
+    })).join(', ')}]`;
+}
+exports.toLogString = toLogString;
+/**
+ * Certificates for testing. These are not automatically used, but can be added in
+ * ProxyAgentParams#loadAdditionalCertificates(). This just provides a shared array
+ * between production code and tests.
+ */
+exports.testCertificates = [];