split files into client/ and server/

client/js/api.js

@@ -0,0 +1,96 @@
+'use strict';
+
+const request = require('superagent');
+const config = require('./config.js');
+const EventListener = require('./event_listener.js');
+
+class Api {
+    constructor() {
+        this.user = null;
+        this.userName = null;
+        this.userPassword = null;
+        this.authenticated = new EventListener();
+    }
+
+    get(url) {
+        const fullUrl = this.getFullUrl(url);
+        return this._process(fullUrl, () => request.get(fullUrl));
+    }
+
+    post(url, data) {
+        const fullUrl = this.getFullUrl(url);
+        return this._process(fullUrl, () => request.post(fullUrl).send(data));
+    }
+
+    _process(url, requestFactory) {
+        return new Promise((resolve, reject) => {
+            let req = requestFactory();
+            if (this.userName && this.userPassword) {
+                req.auth(this.userName, this.userPassword);
+            }
+            req.set('Accept', 'application/json')
+                .end((error, response) => {
+                    if (error) {
+                        reject(response.body);
+                    } else {
+                        resolve(response.body);
+                    }
+                });
+        });
+    }
+
+    hasPrivilege(lookup) {
+        let minViableRank = null;
+        for (let privilege of Object.keys(config.privileges)) {
+            if (!privilege.startsWith(lookup)) {
+                continue;
+            }
+            const rankName = config.privileges[privilege];
+            const rankIndex = config.service.userRanks.indexOf(rankName);
+            if (minViableRank === null || rankIndex < minViableRank) {
+                minViableRank = rankIndex;
+            }
+        }
+        if (minViableRank === null) {
+            console.error('Bad privilege name: ' + lookup);
+        }
+        let myRank = this.user !== null ?
+            config.service.userRanks.indexOf(this.user.accessRank) :
+            0;
+        return myRank >= minViableRank;
+    }
+
+    login(userName, userPassword) {
+        return new Promise((resolve, reject) => {
+            this.userName = userName;
+            this.userPassword = userPassword;
+            this.get('/user/' + userName)
+                .then(response => {
+                    this.user = response.user;
+                    resolve();
+                    this.authenticated.fire();
+                }).catch(response => {
+                    reject(response.description);
+                    this.logout();
+                    this.authenticated.fire();
+                });
+        });
+    }
+
+    logout() {
+        this.user = null;
+        this.userName = null;
+        this.userPassword = null;
+        this.authenticated.fire();
+    }
+
+    isLoggedIn() {
+        return this.userName !== null;
+    }
+
+    getFullUrl(url) {
+        return (config.basic.apiUrl + '/' + url).replace(/([^:])\/+/g, '$1/');
+    }
+}
+
+module.exports = new Api();