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computeclient.js
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computeclient.js
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"use strict";
/**
* Copyright 2013 Google Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
var __extends = (this && this.__extends) || (function () {
var extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
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());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = y[op[0] & 2 ? "return" : op[0] ? "throw" : "next"]) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [0, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
var axios_1 = require("axios");
var gcpMetadata = require("gcp-metadata");
var rax = require("retry-axios");
var oauth2client_1 = require("./oauth2client");
// Create a scoped axios instance that will retry 3 times by default
var ax = axios_1.default.create();
rax.attach(ax);
var Compute = /** @class */ (function (_super) {
__extends(Compute, _super);
/**
* Google Compute Engine service account credentials.
*
* Retrieve access token from the metadata server.
* See: https://developers.google.com/compute/docs/authentication
*/
function Compute(options) {
var _this = _super.call(this, options) || this;
// Start with an expired refresh token, which will automatically be
// refreshed before the first API call is made.
_this.credentials = { expiry_date: 1, refresh_token: 'compute-placeholder' };
return _this;
}
/**
* Indicates whether the credential requires scopes to be created by calling
* createdScoped before use.
* @return Boolean indicating if scope is required.
*/
Compute.prototype.createScopedRequired = function () {
// On compute engine, scopes are specified at the compute instance's
// creation time, and cannot be changed. For this reason, always return
// false.
return false;
};
/**
* Refreshes the access token.
* @param refreshToken Unused parameter
*/
Compute.prototype.refreshTokenNoCache = function (refreshToken) {
return __awaiter(this, void 0, void 0, function () {
var url, res, e_1, tokens, _a;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
url = this.tokenUrl ||
"" + gcpMetadata.HOST_ADDRESS + Compute._GOOGLE_OAUTH2_TOKEN_URL;
res = null;
_b.label = 1;
case 1:
_b.trys.push([1, 3, , 4]);
return [4 /*yield*/, ax.request({
url: url,
headers: (_a = {}, _a[gcpMetadata.HEADER_NAME] = 'Google', _a),
raxConfig: { noResponseRetries: 3, retry: 3, instance: ax }
})];
case 2:
// TODO: In 2.0, we should remove the ability to configure the tokenUrl,
// and switch this over to use the gcp-metadata package instead.
res = _b.sent();
return [3 /*break*/, 4];
case 3:
e_1 = _b.sent();
e_1.message = 'Could not refresh access token.';
throw e_1;
case 4:
tokens = res.data;
if (res.data && res.data.expires_in) {
tokens.expiry_date =
((new Date()).getTime() + (res.data.expires_in * 1000));
delete tokens.expires_in;
}
this.emit('tokens', tokens);
return [2 /*return*/, { tokens: tokens, res: res }];
}
});
});
};
Compute.prototype.requestAsync = function (opts, retry) {
if (retry === void 0) { retry = false; }
return _super.prototype.requestAsync.call(this, opts, retry).catch(function (e) {
var res = e.response;
if (res && res.status) {
var helpfulMessage = null;
if (res.status === 403) {
helpfulMessage =
'A Forbidden error was returned while attempting to retrieve an access ' +
'token for the Compute Engine built-in service account. This may be because the Compute ' +
'Engine instance does not have the correct permission scopes specified.';
}
else if (res.status === 404) {
helpfulMessage =
'A Not Found error was returned while attempting to retrieve an access' +
'token for the Compute Engine built-in service account. This may be because the Compute ' +
'Engine instance does not have any permission scopes specified.';
}
if (helpfulMessage) {
if (e && e.message && !retry) {
helpfulMessage += ' ' + e.message;
}
if (e) {
e.message = helpfulMessage;
}
else {
e = new Error(helpfulMessage);
e.code = res.status.toString();
}
}
}
throw e;
});
};
/**
* Google Compute Engine metadata server token endpoint.
*/
Compute._GOOGLE_OAUTH2_TOKEN_URL = gcpMetadata.BASE_PATH + "/instance/service-accounts/default/token";
return Compute;
}(oauth2client_1.OAuth2Client));
exports.Compute = Compute;
//# sourceMappingURL=computeclient.js.map