Add new CookieTokenManager class.

Author: smithsz

lib/tokens/CookieTokenManager.js

@@ -0,0 +1,53 @@
+// Copyright © 2019 IBM Corp. 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.
+'use strict';
+
+const debug = require('debug')('cloudant:tokens:cookietokenmanager');
+const TokenManager = require('./TokenManager');
+
+class CookieTokenManager extends TokenManager {
+  constructor(client, jar, sessionUrl, username, password) {
+    super(client, jar, sessionUrl);
+
+    this._username = username;
+    this._password = password;
+  }
+
+  _getToken(callback) {
+    debug('Submitting cookie token request.');
+    this._client({
+      url: this._sessionUrl,
+      method: 'POST',
+      form: {
+        name: this._username,
+        password: this._password
+      },
+      jar: this._jar
+    }, (error, response, body) => {
+      if (error) {
+        debug(error);
+        callback(error);
+      } else if (response.statusCode === 200) {
+        debug('Successfully renewed session cookie.');
+        callback(null, response);
+      } else {
+        let msg = `Failed to get cookie. Status code: ${response.statusCode}`;
+        debug(msg);
+        callback(new Error(msg), response);
+      }
+    });
+  }
+}
+
+module.exports = CookieTokenManager;