get-proxy-settings
Version:
Retrieve proxy settings specified by the system
79 lines • 3.35 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
Object.defineProperty(exports, "__esModule", { value: true });
const http = require("http");
const https = require("https");
const url_1 = require("url");
const defaults_1 = require("./defaults");
const proxy_errors_1 = require("./proxy-errors");
function get(opts, useHttps = false) {
return __awaiter(this, void 0, void 0, function* () {
const send = useHttps ? https.get : http.get;
return new Promise((resolve, reject) => {
const req = send(opts, (res) => {
if (res.statusCode < 200 || res.statusCode > 299) {
reject(res);
}
else {
resolve(res);
}
});
req.on("error", e => reject(e));
});
});
}
/**
* Validate the given proxy setting
* @param setting Proxy setting to validate.
*
* @throws {ProxyConnectionRefusedError} if it cannot connect to the proxy
* @throws {ProxyAuthenticationRequiredError} if proxy settings doesn't have credentials but is required
* @throws {ProxyInvalidCredentialsError} if proxy settings has credentials but proxy denies the request(407)
* @throws {GetProxyError} for other errors
*/
function validateProxySetting(setting) {
return __awaiter(this, void 0, void 0, function* () {
const auth = setting.getAuthorizationHeader();
const testUrl = new url_1.URL(defaults_1.defaults.testUrl);
try {
yield get({
host: setting.host,
port: setting.port,
path: defaults_1.defaults.testUrl,
headers: {
"Connection": "close",
"Host": testUrl.host,
"Proxy-Authorization": auth,
"User-Agent": "Mozilla/5.0",
},
agent: false,
});
return true;
}
catch (e) {
if (e.code === "ECONNREFUSED") {
throw new proxy_errors_1.ProxyConnectionRefusedError(setting);
}
else if (e.statusCode === 407) {
if (setting.credentials) {
throw new proxy_errors_1.ProxyInvalidCredentialsError(setting);
}
else {
throw new proxy_errors_1.ProxyAuthenticationRequiredError(setting);
}
}
else {
throw new proxy_errors_1.GetProxyError(setting, `Error validating proxy. Returned ${e.statusCode} ${e.statusMessage}`);
}
}
});
}
exports.validateProxySetting = validateProxySetting;
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