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/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import * as http from 'http';
import * as https from 'https';
import { parse as parseUrl } from 'url';
import { Promises } from 'vs/base/common/async';
import { streamToBufferReadableStream } from 'vs/base/common/buffer';
import { CancellationToken } from 'vs/base/common/cancellation';
import { canceled } from 'vs/base/common/errors';
import { Disposable } from 'vs/base/common/lifecycle';
import * as streams from 'vs/base/common/stream';
import { isBoolean, isNumber } from 'vs/base/common/types';
import { IRequestContext, IRequestOptions } from 'vs/base/parts/request/common/request';
import { IConfigurationService } from 'vs/platform/configuration/common/configuration';
import { INativeEnvironmentService } from 'vs/platform/environment/common/environment';
import { getResolvedShellEnv } from 'vs/platform/shell/node/shellEnv';
import { ILogService } from 'vs/platform/log/common/log';
import { IHTTPConfiguration, IRequestService } from 'vs/platform/request/common/request';
import { Agent, getProxyAgent } from 'vs/platform/request/node/proxy';
import { createGunzip } from 'zlib';
export interface IRawRequestFunction {
(options: http.RequestOptions, callback?: (res: http.IncomingMessage) => void): http.ClientRequest;
}
export interface NodeRequestOptions extends IRequestOptions {
agent?: Agent;
strictSSL?: boolean;
getRawRequest?(options: IRequestOptions): IRawRequestFunction;
}
/**
* This service exposes the `request` API, while using the global
* or configured proxy settings.
*/
export class RequestService extends Disposable implements IRequestService {
declare readonly _serviceBrand: undefined;
private proxyUrl?: string;
private strictSSL: boolean | undefined;
private authorization?: string;
private shellEnvErrorLogged?: boolean;
constructor(
@IConfigurationService configurationService: IConfigurationService,
@INativeEnvironmentService private readonly environmentService: INativeEnvironmentService,
@ILogService private readonly logService: ILogService
) {
super();
this.configure(configurationService.getValue<IHTTPConfiguration>());
this._register(configurationService.onDidChangeConfiguration(() => this.configure(configurationService.getValue()), this));
}
private configure(config: IHTTPConfiguration) {
this.proxyUrl = config.http && config.http.proxy;
this.strictSSL = !!(config.http && config.http.proxyStrictSSL);
this.authorization = config.http && config.http.proxyAuthorization;
}
async request(options: NodeRequestOptions, token: CancellationToken): Promise<IRequestContext> {
this.logService.trace('RequestService#request', options.url);
const { proxyUrl, strictSSL } = this;
let shellEnv: typeof process.env | undefined = undefined;
try {
shellEnv = await getResolvedShellEnv(this.logService, this.environmentService.args, process.env);
} catch (error) {
if (!this.shellEnvErrorLogged) {
this.shellEnvErrorLogged = true;
this.logService.error('RequestService#request resolving shell environment failed', error);
}
}
const env = {
...process.env,
...shellEnv
};
const agent = options.agent ? options.agent : await getProxyAgent(options.url || '', env, { proxyUrl, strictSSL });
options.agent = agent;
options.strictSSL = strictSSL;
if (this.authorization) {
options.headers = {
...(options.headers || {}),
'Proxy-Authorization': this.authorization
};
}
return this._request(options, token);
}
private async getNodeRequest(options: IRequestOptions): Promise<IRawRequestFunction> {
const endpoint = parseUrl(options.url!);
const module = endpoint.protocol === 'https:' ? await import('https') : await import('http');
return module.request;
}
private _request(options: NodeRequestOptions, token: CancellationToken): Promise<IRequestContext> {
return Promises.withAsyncBody<IRequestContext>(async (c, e) => {
let req: http.ClientRequest;
const endpoint = parseUrl(options.url!);
const rawRequest = options.getRawRequest
? options.getRawRequest(options)
: await this.getNodeRequest(options);
const opts: https.RequestOptions = {
hostname: endpoint.hostname,
port: endpoint.port ? parseInt(endpoint.port) : (endpoint.protocol === 'https:' ? 443 : 80),
protocol: endpoint.protocol,
path: endpoint.path,
method: options.type || 'GET',
headers: options.headers,
agent: options.agent,
rejectUnauthorized: isBoolean(options.strictSSL) ? options.strictSSL : true
};
if (options.user && options.password) {
opts.auth = options.user + ':' + options.password;
}
req = rawRequest(opts, (res: http.IncomingMessage) => {
const followRedirects: number = isNumber(options.followRedirects) ? options.followRedirects : 3;
if (res.statusCode && res.statusCode >= 300 && res.statusCode < 400 && followRedirects > 0 && res.headers['location']) {
this._request({
...options,
url: res.headers['location'],
followRedirects: followRedirects - 1
}, token).then(c, e);
} else {
let stream: streams.ReadableStreamEvents<Uint8Array> = res;
if (res.headers['content-encoding'] === 'gzip') {
stream = res.pipe(createGunzip());
}
c({ res, stream: streamToBufferReadableStream(stream) } as IRequestContext);
}
});
req.on('error', e);
if (options.timeout) {
req.setTimeout(options.timeout);
}
if (options.data) {
if (typeof options.data === 'string') {
req.write(options.data);
}
}
req.end();
token.onCancellationRequested(() => {
req.abort();
e(canceled());
});
});
}
async resolveProxy(url: string): Promise<string | undefined> {
return undefined; // currently not implemented in node
}
}
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