#103 moved auth service to core library

ng2-components/ng2-alfresco-core/src/services/alfresco-authentication.service.ts

@@ -0,0 +1,136 @@
+/*!
+ * @license
+ * Copyright 2016 Alfresco Software, Ltd.
+ *
+ * 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.
+ */
+
+import { Injectable } from 'angular2/core';
+import { Observable } from 'rxjs/Rx';
+import { Http, Headers, Response } from 'angular2/http';
+
+/**
+ * The AlfrescoAuthenticationService provide the login service and store the token in the localStorage
+ */
+@Injectable()
+export class AlfrescoAuthenticationService {
+    token: string;
+
+    private _host: string = 'http://192.168.99.100:8080';
+    private _baseUrl: string = this._host + '/alfresco/api/-default-/public/authentication/versions/1';
+
+    /**
+     * Constructor
+     * @param http
+     */
+    constructor(public http: Http) {
+        this.token = localStorage.getItem('token');
+    }
+
+    /**
+     * The method return tru if the user is logged in
+     * @returns {boolean}
+     */
+    isLoggedIn() {
+        return !!localStorage.getItem('token');
+    }
+
+    /**
+     * Method to delegate to POST login
+     * @param username
+     * @param password
+     * @returns {Observable<R>|Observable<T>}
+     */
+    login(username: string, password: string) {
+        return this.loginPost(username, password);
+    }
+
+    /**
+     * The method provide the login with POST Request
+     * @param username
+     * @param password
+     * @returns {Observable<R>|Observable<T>}
+     */
+    loginPost(username: string, password: string) {
+        let credentials = '{ "userId": "' + username + '", "password": "' + password + '" }';
+
+        let headers = new Headers();
+        headers.append('Content-Type', 'application/json');
+        headers.append('Accept', 'application/json');
+
+        return this.http.post(this._baseUrl + '/tickets', credentials, {
+                headers: headers
+            })
+            .map((res: any) => {
+                let response = res.json();
+                this.token = response.entry.id;
+                this.saveJwt(this.token);
+            })
+            .catch(this.handleError);
+    }
+
+    /**
+     * Delete the current login ticket from the server
+     *
+     * @returns {Observable<R>|Observable<T>}
+     */
+    loginDelete() {
+        let headers = new Headers();
+        headers.append('Content-Type', 'application/json');
+        headers.append('Authorization', 'Basic ' + btoa(this.token));
+
+        return this.http.delete(this._baseUrl + '/tickets/-me-', {
+                headers: headers
+            })
+            .map((res: any) => {
+                this.removeJwt();
+                this.token = undefined;
+            })
+            .catch(this.handleError);
+    }
+
+    /**
+     * The method save the toke in the localStorage
+     * @param jwt
+     */
+    saveJwt(jwt) {
+        if (jwt) {
+            localStorage.setItem('token', jwt);
+        }
+    }
+
+    /**
+     * Remove the login token from localStorage
+     */
+    removeJwt() {
+        localStorage.removeItem('token');
+    }
+
+    /**
+     * The method remove the token from the local storage
+     * @returns {Observable<T>}
+     */
+    logout() {
+        return this.loginDelete();
+    }
+
+    /**
+     * The method write the error in the console browser
+     * @param error
+     * @returns {ErrorObservable}
+     */
+    private handleError(error: Response) {
+        console.error('Error when logging in', error);
+        return Observable.throw(error.json().message || 'Server error');
+    }
+}