revert avoid store discovery service information (#398)

Author: eromano

src/authentication/oauth2Auth.ts

@@ -130,34 +130,44 @@ export class Oauth2Auth extends AlfrescoApiClient {
 
     discoveryUrls() {
         return new Promise((resolve, reject) => {
-            let postBody = {}, pathParams = {}, queryParams = {}, formParams = {}, headerParams = {};
-            let contentTypes = ['application/json'];
-            let accepts = ['application/json'];
-
-            let url = '.well-known/openid-configuration';
-            this.callApi(
-                url, 'GET',
-                pathParams, queryParams, headerParams, formParams, postBody,
-                contentTypes, accepts
-            ).then((discovery) => {
-                this.discovery = {};
-                this.discovery.loginUrl = discovery.authorization_endpoint;
-                this.discovery.logoutUrl = discovery.end_session_endpoint;
-                this.discovery.grantTypesSupported = discovery.grant_types_supported;
-                this.discovery.issuer = discovery.issuer;
-                this.discovery.tokenEndpoint = discovery.token_endpoint;
-                this.discovery.userinfoEndpoint = discovery.userinfo_endpoint;
-                this.discovery.jwksUri = discovery.jwks_uri;
-                this.discovery.sessionCheckIFrameUrl = discovery.check_session_iframe;
+            let discoveryStore = this.storage.getItem('discovery');
+            if (discoveryStore) {
+                this.discovery = JSON.parse(discoveryStore);
+            }
 
+            if (!this.discovery) {
+                let postBody = {}, pathParams = {}, queryParams = {}, formParams = {}, headerParams = {};
+                let contentTypes = ['application/json'];
+                let accepts = ['application/json'];
+
+                let url = '.well-known/openid-configuration';
+                this.callApi(
+                    url, 'GET',
+                    pathParams, queryParams, headerParams, formParams, postBody,
+                    contentTypes, accepts
+                ).then((discovery) => {
+                    this.discovery = {};
+                    this.discovery.loginUrl = discovery.authorization_endpoint;
+                    this.discovery.logoutUrl = discovery.end_session_endpoint;
+                    this.discovery.grantTypesSupported = discovery.grant_types_supported;
+                    this.discovery.issuer = discovery.issuer;
+                    this.discovery.tokenEndpoint = discovery.token_endpoint;
+                    this.discovery.userinfoEndpoint = discovery.userinfo_endpoint;
+                    this.discovery.jwksUri = discovery.jwks_uri;
+                    this.discovery.sessionCheckIFrameUrl = discovery.check_session_iframe;
+
+                    this.emit('discovery', this.discovery);
+                    this.storage.setItem('discovery', JSON.stringify(this.discovery));
+                    resolve(discovery);
+                }, (error) => {
+                    this.emit('error', error);
+                    this.storage.removeItem('discovery');
+                    reject(error.error);
+                });
+            } else {
                 this.emit('discovery', this.discovery);
-                this.storage.setItem('discovery', JSON.stringify(this.discovery));
-                resolve(discovery);
-            }, (error) => {
-                this.emit('error', error);
-                this.storage.removeItem('discovery');
-                reject(error.error);
-            });
+                resolve(this.discovery);
+            }
         });
 
     }