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MatteZ02
2020-03-03 22:30:50 +02:00
parent edfcc6f474
commit 30022c7634
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32
node_modules/gcp-metadata/build/src/index.d.ts generated vendored Normal file
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/**
* Copyright 2018 Google LLC
*
* Distributed under MIT license.
* See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
*/
/// <reference types="node" />
import { OutgoingHttpHeaders } from 'http';
export declare const HOST_ADDRESS = "http://169.254.169.254";
export declare const BASE_PATH = "/computeMetadata/v1";
export declare const BASE_URL: string;
export declare const SECONDARY_HOST_ADDRESS = "http://metadata.google.internal.";
export declare const SECONDARY_BASE_URL: string;
export declare const HEADER_NAME = "Metadata-Flavor";
export declare const HEADER_VALUE = "Google";
export declare const HEADERS: Readonly<{
[HEADER_NAME]: string;
}>;
export interface Options {
params?: {
[index: string]: string;
};
property?: string;
headers?: OutgoingHttpHeaders;
}
export declare function instance<T = any>(options?: string | Options): Promise<T>;
export declare function project<T = any>(options?: string | Options): Promise<T>;
export declare function isAvailable(): Promise<boolean>;
/**
* reset the memoized isAvailable() lookup.
*/
export declare function resetIsAvailableCache(): void;

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node_modules/gcp-metadata/build/src/index.js generated vendored Normal file
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"use strict";
/**
* Copyright 2018 Google LLC
*
* Distributed under MIT license.
* See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
*/
Object.defineProperty(exports, "__esModule", { value: true });
const gaxios_1 = require("gaxios");
const jsonBigint = require('json-bigint');
exports.HOST_ADDRESS = 'http://169.254.169.254';
exports.BASE_PATH = '/computeMetadata/v1';
exports.BASE_URL = exports.HOST_ADDRESS + exports.BASE_PATH;
exports.SECONDARY_HOST_ADDRESS = 'http://metadata.google.internal.';
exports.SECONDARY_BASE_URL = exports.SECONDARY_HOST_ADDRESS + exports.BASE_PATH;
exports.HEADER_NAME = 'Metadata-Flavor';
exports.HEADER_VALUE = 'Google';
exports.HEADERS = Object.freeze({ [exports.HEADER_NAME]: exports.HEADER_VALUE });
// Accepts an options object passed from the user to the API. In previous
// versions of the API, it referred to a `Request` or an `Axios` request
// options object. Now it refers to an object with very limited property
// names. This is here to help ensure users don't pass invalid options when
// they upgrade from 0.4 to 0.5 to 0.8.
function validate(options) {
Object.keys(options).forEach(key => {
switch (key) {
case 'params':
case 'property':
case 'headers':
break;
case 'qs':
throw new Error(`'qs' is not a valid configuration option. Please use 'params' instead.`);
default:
throw new Error(`'${key}' is not a valid configuration option.`);
}
});
}
async function metadataAccessor(type, options, noResponseRetries = 3, fastFail = false) {
options = options || {};
if (typeof options === 'string') {
options = { property: options };
}
let property = '';
if (typeof options === 'object' && options.property) {
property = '/' + options.property;
}
validate(options);
try {
const requestMethod = fastFail ? fastFailMetadataRequest : gaxios_1.request;
const res = await requestMethod({
url: `${exports.BASE_URL}/${type}${property}`,
headers: Object.assign({}, exports.HEADERS, options.headers),
retryConfig: { noResponseRetries },
params: options.params,
responseType: 'text',
timeout: 3000,
});
// NOTE: node.js converts all incoming headers to lower case.
if (res.headers[exports.HEADER_NAME.toLowerCase()] !== exports.HEADER_VALUE) {
throw new Error(`Invalid response from metadata service: incorrect ${exports.HEADER_NAME} header.`);
}
else if (!res.data) {
throw new Error('Invalid response from the metadata service');
}
if (typeof res.data === 'string') {
try {
return jsonBigint.parse(res.data);
}
catch (_a) {
/* ignore */
}
}
return res.data;
}
catch (e) {
if (e.response && e.response.status !== 200) {
e.message = `Unsuccessful response status code. ${e.message}`;
}
throw e;
}
}
async function fastFailMetadataRequest(options) {
const secondaryOptions = Object.assign(Object.assign({}, options), { url: options.url.replace(exports.BASE_URL, exports.SECONDARY_BASE_URL) });
// We race a connection between DNS/IP to metadata server. There are a couple
// reasons for this:
//
// 1. the DNS is slow in some GCP environments; by checking both, we might
// detect the runtime environment signficantly faster.
// 2. we can't just check the IP, which is tarpitted and slow to respond
// on a user's local machine.
//
// Additional logic has been added to make sure that we don't create an
// unhandled rejection in scenarios where a failure happens sometime
// after a success.
//
// Note, however, if a failure happens prior to a success, a rejection should
// occur, this is for folks running locally.
//
let responded = false;
const r1 = gaxios_1.request(options)
.then(res => {
responded = true;
return res;
})
.catch(err => {
if (responded) {
return r2;
}
else {
responded = true;
throw err;
}
});
const r2 = gaxios_1.request(secondaryOptions)
.then(res => {
responded = true;
return res;
})
.catch(err => {
if (responded) {
return r1;
}
else {
responded = true;
throw err;
}
});
return Promise.race([r1, r2]);
}
// tslint:disable-next-line no-any
function instance(options) {
return metadataAccessor('instance', options);
}
exports.instance = instance;
// tslint:disable-next-line no-any
function project(options) {
return metadataAccessor('project', options);
}
exports.project = project;
/*
* How many times should we retry detecting GCP environment.
*/
function detectGCPAvailableRetries() {
return process.env.DETECT_GCP_RETRIES
? Number(process.env.DETECT_GCP_RETRIES)
: 0;
}
/**
* Determine if the metadata server is currently available.
*/
let cachedIsAvailableResponse;
async function isAvailable() {
try {
// If a user is instantiating several GCP libraries at the same time,
// this may result in multiple calls to isAvailable(), to detect the
// runtime environment. We use the same promise for each of these calls
// to reduce the network load.
if (cachedIsAvailableResponse === undefined) {
cachedIsAvailableResponse = metadataAccessor('instance', undefined, detectGCPAvailableRetries(), true);
}
await cachedIsAvailableResponse;
return true;
}
catch (err) {
if (process.env.DEBUG_AUTH) {
console.info(err);
}
if (err.type === 'request-timeout') {
// If running in a GCP environment, metadata endpoint should return
// within ms.
return false;
}
else if (err.code &&
[
'EHOSTDOWN',
'EHOSTUNREACH',
'ENETUNREACH',
'ENOENT',
'ENOTFOUND',
].includes(err.code)) {
// Failure to resolve the metadata service means that it is not available.
return false;
}
else if (err.response && err.response.status === 404) {
return false;
}
// Throw unexpected errors.
throw err;
}
}
exports.isAvailable = isAvailable;
/**
* reset the memoized isAvailable() lookup.
*/
function resetIsAvailableCache() {
cachedIsAvailableResponse = undefined;
}
exports.resetIsAvailableCache = resetIsAvailableCache;
//# sourceMappingURL=index.js.map

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