adding ability to use custom cookie name on client. Clears cookie on …

…logout. Closes #122

src/client/index.js

@@ -1,8 +1,9 @@
 import * as hooks from './hooks';
-import { connected, authenticateSocket, getJWT, getStorage } from './utils';
+import { connected, authenticateSocket, getJWT, getStorage, clearCookie } from './utils';
 import errors from 'feathers-errors';
 
 const defaults = {
+  cookie: 'fathers-jwt',
   tokenKey: 'feathers-jwt',
   localEndpoint: '/auth/local',
   tokenEndpoint: '/auth/token'
@@ -24,7 +25,7 @@ export default function(opts = {}) {
 
       // If no type was given let's try to authenticate with a stored JWT
       if (!options.type) {
-        getOptions = getJWT(config.tokenKey, this.get('storage')).then(token => {
+        getOptions = getJWT(config.tokenKey, config.cookie, this.get('storage')).then(token => {
           if (!token) {
             return Promise.reject(new errors.NotAuthenticated(`Could not find stored JWT and no authentication type was given`));
           }
@@ -69,6 +70,8 @@ export default function(opts = {}) {
     app.logout = function() {
       app.set('user', null);
       app.set('token', null);
+
+      clearCookie(config.cookie);
 
       // TODO (EK): invalidate token with server
       return Promise.resolve(app.get('storage').setItem(config.tokenKey, ''));

src/client/utils.js

@@ -38,7 +38,7 @@ export function authenticateSocket(options, socket, method) {
 
 // Returns the value for a cookie
 export function getCookie(name) {
-  if(typeof document !== 'undefined') {
+  if (typeof document !== 'undefined') {
     const value = `; ${document.cookie}`;
     const parts = value.split(`; ${name}=`);
 
@@ -50,13 +50,22 @@ export function getCookie(name) {
   return null;
 }
 
+// Returns the value for a cookie
+export function clearCookie(name = 'feathers-jwt') {
+  if (typeof document !== 'undefined') {
+    document.cookie = `${name}=;expires=Thu, 01 Jan 1970 00:00:01 GMT;`; 
+  }
+
+  return null;
+}
+
 // Tries the JWT from the given key either from a storage or the cookie
-export function getJWT(key, storage) {
-  return Promise.resolve(storage.getItem(key)).then(jwt => {
-    const cookieKey = getCookie(key);
+export function getJWT(tokenKey, cookieKey, storage) {
+  return Promise.resolve(storage.getItem(tokenKey)).then(jwt => {
+    const cookieToken = getCookie(cookieKey);
 
-    if(cookieKey) {
-      return cookieKey;
+    if (cookieToken) {
+      return cookieToken;
     }
 
     return jwt;