Fix authentication for some auth paths

fixes ovh#20

Author: Aurélien GASTON

lib/ovh.es5.js

@@ -51,6 +51,7 @@ var Ovh = function () {
     this.timeout = params.timeout;
     this.apiTimeDiff = params.apiTimeDiff || null;
     this.endpoint = params.endpoint || null;
+    this.noAuthPaths = params.noAuthPaths || ['/auth/credential', '/auth/time'];
 
     // Preconfigured API endpoints
     if (this.endpoint) {
@@ -363,7 +364,7 @@ var Ovh = function () {
         }
       }
 
-      if (path.indexOf('/auth') < 0) {
+      if (!this.noAuthPaths.includes(path)) {
         options.headers['X-Ovh-Timestamp'] = Math.round(Date.now() / 1000) + this.apiTimeDiff;
 
         // Sign request

lib/ovh.es6.js

@@ -43,6 +43,7 @@ class Ovh {
     this.timeout = params.timeout;
     this.apiTimeDiff = params.apiTimeDiff || null;
     this.endpoint = params.endpoint || null;
+    this.noAuthPaths = params.noAuthPaths || ['/auth/credential', '/auth/time'];
 
     // Preconfigured API endpoints
     if (this.endpoint) {
@@ -356,7 +357,7 @@ class Ovh {
       }
     }
 
-    if (path.indexOf('/auth') < 0) {
+    if (!this.noAuthPaths.includes(path)) {
       options.headers['X-Ovh-Timestamp'] = Math.round(Date.now() / 1000) + this.apiTimeDiff;
 
       // Sign request
@@ -487,4 +488,4 @@ class Ovh {
 
 module.exports = function (params) {
   return new Ovh(params || {});
-};
+};