add webdav server for easier file access

[perso/Immae/Projets/Nodejs/Surfer.git] / src / auth.js

diff --git a/src/auth.js b/src/auth.js
index 0338632890c55d2cac86e0c6c7c395ec65db4d80..67c20505d0e9e8364349336ea864fa770d75217c 100644 (file)
--- a/src/auth.js
+++ b/src/auth.js
@@ -3,53 +3,48 @@
 var passport = require('passport'),
     path = require('path'),
     safe = require('safetydance'),
+    fs = require('fs'),
     bcrypt = require('bcryptjs'),
     uuid = require('uuid/v4'),
-    redis = require('redis'),
     BearerStrategy = require('passport-http-bearer').Strategy,
     LdapStrategy = require('passport-ldapjs').Strategy,
     HttpError = require('connect-lastmile').HttpError,
-    HttpSuccess = require('connect-lastmile').HttpSuccess;
+    HttpSuccess = require('connect-lastmile').HttpSuccess,
+    webdavErrors = require('webdav-server').v2.Errors;
 
-var LOCAL_AUTH_FILE = path.resolve(process.env.LOCAL_AUTH_FILE || './.users.json');
+const LOCAL_AUTH_FILE = path.resolve(process.env.LOCAL_AUTH_FILE || './.users.json');
+const TOKENSTORE_FILE = path.resolve(process.env.TOKENSTORE_FILE || './.tokens.json');
 
 var tokenStore = {
     data: {},
+    save: function () {
+        try {
+            fs.writeFileSync(TOKENSTORE_FILE, JSON.stringify(tokenStore.data), 'utf-8');
+        } catch (e) {
+            console.error(`Unable to save tokenstore file at ${TOKENSTORE_FILE}`, e);
+        }
+    },
     get: function (token, callback) {
         callback(tokenStore.data[token] ? null : 'not found', tokenStore.data[token]);
     },
     set: function (token, data, callback) {
         tokenStore.data[token] = data;
+        tokenStore.save();
         callback(null);
     },
     del: function (token, callback) {
         delete tokenStore.data[token];
+        tokenStore.save();
         callback(null);
     }
 };
 
-if (process.env.REDIS_URL) {
-    console.log('Enable redis token store');
-
-    var redisClient = redis.createClient(process.env.REDIS_URL);
-
-    if (process.env.REDIS_PASSWORD) {
-        console.log('Using redis auth');
-        redisClient.auth(process.env.REDIS_PASSWORD);
-    }
-
-    // overwrite the tokenStore api
-    tokenStore.get = function (token, callback) {
-        redisClient.get(token, function (error, result) {
-            callback(error || null, safe.JSON.parse(result));
-        });
-    };
-    tokenStore.set = function (token, data, callback) {
-        redisClient.set(token, JSON.stringify(data), callback);
-    };
-    tokenStore.del = redisClient.del.bind(redisClient);
-} else {
-    console.log('Use in-memory token store');
+// load token store data if any
+try {
+    console.log(`Using tokenstore file: ${TOKENSTORE_FILE}`);
+    tokenStore.data = JSON.parse(fs.readFileSync(TOKENSTORE_FILE, 'utf-8'));
+} catch (e) {
+    // start with empty token store
 }
 
 function issueAccessToken() {
@@ -77,11 +72,11 @@ var LDAP_URL = process.env.LDAP_URL;
 var LDAP_USERS_BASE_DN = process.env.LDAP_USERS_BASE_DN;
 
 if (LDAP_URL && LDAP_USERS_BASE_DN) {
-    console.log('Enable ldap auth');
+    console.log('Using ldap auth');
 
     exports.login = [ passport.authenticate('ldap'), issueAccessToken() ];
 } else {
-    console.log('Use local user file:', LOCAL_AUTH_FILE);
+    console.log(`Using local user file: ${LOCAL_AUTH_FILE}`);
 
     exports.login = [
         function (req, res, next) {
@@ -146,3 +141,39 @@ exports.logout = function (req, res, next) {
 exports.getProfile = function (req, res, next) {
     next(new HttpSuccess(200, { username: req.user.username }));
 };
+
+// webdav usermanager
+exports.WebdavUserManager = WebdavUserManager;
+
+// This implements the required interface only for the Basic Authentication for webdav-server
+function WebdavUserManager() {};
+
+WebdavUserManager.prototype.getDefaultUser = function (callback) {
+    // this is only a dummy user, since we always require authentication
+    var user = {
+        username: 'DefaultUser',
+        password: null,
+        isAdministrator: false,
+        isDefaultUser: true,
+        uid: 'DefaultUser'
+    };
+
+    callback(user);
+};
+
+WebdavUserManager.prototype.getUserByNamePassword = function (username, password, callback) {
+    var users = safe.JSON.parse(safe.fs.readFileSync(LOCAL_AUTH_FILE));
+    if (!users) return callback(webdavErrors.UserNotFound);
+    if (!users[username]) return callback(webdavErrors.UserNotFound);
+
+    bcrypt.compare(password, users[username].passwordHash, function (error, valid) {
+        if (error || !valid) return callback(webdavErrors.UserNotFound);
+
+        callback(null, {
+            username: username,
+            isAdministrator: true,
+            isDefaultUser: false,
+            uid: username
+        });
+    });
+};