azure-cli/lib/util/keyFiles.js

//
// Copyright (c) Microsoft and contributors.  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.
//

/**
 * Functions to work with key and certificate files
 */

var fs = require('fs');
var utils = require('./utils');

var KEY_PATT = /(-+BEGIN RSA PRIVATE KEY-+)(\n\r?|\r\n?)([A-Za-z0-9\+\/\n\r]+\=*)(\n\r?|\r\n?)(-+END RSA PRIVATE KEY-+)/;
var CERT_PATT = /(-+BEGIN CERTIFICATE-+)(\n\r?|\r\n?)([A-Za-z0-9\+\/\n\r]+\=*)(\n\r?|\r\n?)(-+END CERTIFICATE-+)/;

exports.readFromFile = function readFromFile(fileName) {
  // other parameters are optional
  var data;
  try {
    data = fs.readFileSync(fileName, 'utf8');
  } catch(e) {
    throw new Error('No account information found. Please import credentials using "azure account import <file>".');
  }
  return exports.readFromString(data);
};

exports.readFromString = function readFromString(data) {
  var ret = {};
  var matchKey = data.match(KEY_PATT);
  if (matchKey) {
    ret.key = matchKey[1] + '\n' + matchKey[3] + '\n' + matchKey[5] + '\n';
  }

  var matchCert = data.match(CERT_PATT);
  if (matchCert) {
    ret.cert = matchCert[1] + '\n' + matchCert[3] + '\n' + matchCert[5] + '\n';
  }

  return ret;
};

exports.writeToFile = function writeToFile(fileName, keyCertData) {
  utils.writeFileSyncMode(fileName, exports.writeToString(keyCertData), 'utf8');
};

exports.writeToString = function writeToString(keyCertData) {
  return (keyCertData.key || '') + (keyCertData.cert || '');
};