482 lines
18 KiB
JavaScript
482 lines
18 KiB
JavaScript
'use strict';
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exports = module.exports = {
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UserError: UserError,
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list: listUsers,
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create: createUser,
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verify: verify,
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verifyWithUsername: verifyWithUsername,
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verifyWithEmail: verifyWithEmail,
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remove: removeUser,
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get: getUser,
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getByResetToken: getByResetToken,
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getAllAdmins: getAllAdmins,
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resetPasswordByIdentifier: resetPasswordByIdentifier,
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setPassword: setPassword,
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changePassword: changePassword,
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update: updateUser,
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createOwner: createOwner,
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getOwner: getOwner,
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sendInvite: sendInvite,
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setGroups: setGroups
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};
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var assert = require('assert'),
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clientdb = require('./clientdb.js'),
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crypto = require('crypto'),
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DatabaseError = require('./databaseerror.js'),
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groups = require('./groups.js'),
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GroupError = groups.GroupError,
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hat = require('hat'),
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mailer = require('./mailer.js'),
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tokendb = require('./tokendb.js'),
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userdb = require('./userdb.js'),
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util = require('util'),
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uuid = require('node-uuid'),
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validatePassword = require('./password.js').validate,
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validator = require('validator'),
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_ = require('underscore');
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var CRYPTO_SALT_SIZE = 64; // 512-bit salt
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var CRYPTO_ITERATIONS = 10000; // iterations
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var CRYPTO_KEY_LENGTH = 512; // bits
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// http://dustinsenos.com/articles/customErrorsInNode
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// http://code.google.com/p/v8/wiki/JavaScriptStackTraceApi
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function UserError(reason, errorOrMessage) {
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assert.strictEqual(typeof reason, 'string');
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assert(errorOrMessage instanceof Error || typeof errorOrMessage === 'string' || typeof errorOrMessage === 'undefined');
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Error.call(this);
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Error.captureStackTrace(this, this.constructor);
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this.name = this.constructor.name;
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this.reason = reason;
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if (typeof errorOrMessage === 'undefined') {
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this.message = reason;
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} else if (typeof errorOrMessage === 'string') {
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this.message = errorOrMessage;
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} else {
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this.message = 'Internal error';
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this.nestedError = errorOrMessage;
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}
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}
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util.inherits(UserError, Error);
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UserError.INTERNAL_ERROR = 'Internal Error';
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UserError.ALREADY_EXISTS = 'Already Exists';
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UserError.NOT_FOUND = 'Not Found';
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UserError.WRONG_PASSWORD = 'Wrong User or Password';
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UserError.BAD_FIELD = 'Bad field';
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UserError.BAD_USERNAME = 'Bad username';
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UserError.BAD_EMAIL = 'Bad email';
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UserError.BAD_PASSWORD = 'Bad password';
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UserError.BAD_TOKEN = 'Bad token';
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function validateUsername(username) {
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assert.strictEqual(typeof username, 'string');
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// allow empty usernames
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if (username === '') return null;
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if (username.length <= 2) return new UserError(UserError.BAD_USERNAME, 'Username must be atleast 3 chars');
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if (username.length > 256) return new UserError(UserError.BAD_USERNAME, 'Username too long');
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return null;
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}
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function validateEmail(email) {
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assert.strictEqual(typeof email, 'string');
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if (!validator.isEmail(email)) return new UserError(UserError.BAD_EMAIL, 'Invalid email');
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return null;
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}
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function validateToken(token) {
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assert.strictEqual(typeof token, 'string');
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if (token.length !== 64) return new UserError(UserError.BAD_TOKEN, 'Invalid token'); // 256-bit hex coded token
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return null;
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}
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function validateDisplayName(name) {
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assert.strictEqual(typeof name, 'string');
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return null;
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}
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function createUser(username, password, email, displayName, options, callback) {
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assert.strictEqual(typeof username, 'string');
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assert.strictEqual(typeof password, 'string');
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assert.strictEqual(typeof email, 'string');
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assert.strictEqual(typeof displayName, 'string');
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if (typeof options === 'function') {
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callback = options;
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options = null;
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}
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var invitor = options && options.invitor ? options.invitor : null,
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sendInvite = options && options.sendInvite ? true : false,
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owner = options && options.owner ? true : false;
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var error = validateUsername(username);
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if (error) return callback(error);
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error = validatePassword(password);
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if (error) return callback(new UserError(UserError.BAD_PASSWORD, error.message));
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error = validateEmail(email);
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if (error) return callback(error);
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error = validateDisplayName(displayName);
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if (error) return callback(error);
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crypto.randomBytes(CRYPTO_SALT_SIZE, function (error, salt) {
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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crypto.pbkdf2(password, salt, CRYPTO_ITERATIONS, CRYPTO_KEY_LENGTH, function (error, derivedKey) {
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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var now = (new Date()).toISOString();
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var user = {
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id: 'uid-' + uuid.v4(),
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username: username,
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email: email,
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password: new Buffer(derivedKey, 'binary').toString('hex'),
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salt: salt.toString('hex'),
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createdAt: now,
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modifiedAt: now,
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resetToken: hat(256),
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displayName: displayName
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};
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userdb.add(user.id, user, function (error) {
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if (error && error.reason === DatabaseError.ALREADY_EXISTS) return callback(new UserError(UserError.ALREADY_EXISTS));
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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callback(null, user);
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if (!owner) mailer.userAdded(user, sendInvite);
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if (sendInvite) mailer.sendInvite(user, invitor);
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});
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});
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});
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}
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function verify(userId, password, callback) {
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assert.strictEqual(typeof userId, 'string');
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assert.strictEqual(typeof password, 'string');
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assert.strictEqual(typeof callback, 'function');
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userdb.get(userId, function (error, user) {
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if (error && error.reason == DatabaseError.NOT_FOUND) return callback(new UserError(UserError.NOT_FOUND));
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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var saltBinary = new Buffer(user.salt, 'hex');
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crypto.pbkdf2(password, saltBinary, CRYPTO_ITERATIONS, CRYPTO_KEY_LENGTH, function (error, derivedKey) {
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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var derivedKeyHex = new Buffer(derivedKey, 'binary').toString('hex');
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if (derivedKeyHex !== user.password) return callback(new UserError(UserError.WRONG_PASSWORD));
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callback(null, user);
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});
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});
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}
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function verifyWithUsername(username, password, callback) {
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assert.strictEqual(typeof username, 'string');
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assert.strictEqual(typeof password, 'string');
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assert.strictEqual(typeof callback, 'function');
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userdb.getByUsername(username, function (error, user) {
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if (error && error.reason == DatabaseError.NOT_FOUND) return callback(new UserError(UserError.NOT_FOUND));
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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var saltBinary = new Buffer(user.salt, 'hex');
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crypto.pbkdf2(password, saltBinary, CRYPTO_ITERATIONS, CRYPTO_KEY_LENGTH, function (error, derivedKey) {
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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var derivedKeyHex = new Buffer(derivedKey, 'binary').toString('hex');
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if (derivedKeyHex !== user.password) return callback(new UserError(UserError.WRONG_PASSWORD));
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callback(null, user);
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});
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});
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}
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function verifyWithEmail(email, password, callback) {
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assert.strictEqual(typeof email, 'string');
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assert.strictEqual(typeof password, 'string');
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assert.strictEqual(typeof callback, 'function');
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userdb.getByEmail(email, function (error, user) {
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if (error && error.reason == DatabaseError.NOT_FOUND) return callback(new UserError(UserError.NOT_FOUND));
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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var saltBinary = new Buffer(user.salt, 'hex');
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crypto.pbkdf2(password, saltBinary, CRYPTO_ITERATIONS, CRYPTO_KEY_LENGTH, function (error, derivedKey) {
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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var derivedKeyHex = new Buffer(derivedKey, 'binary').toString('hex');
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if (derivedKeyHex !== user.password) return callback(new UserError(UserError.WRONG_PASSWORD));
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callback(null, user);
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});
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});
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}
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function removeUser(user, callback) {
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assert.strictEqual(typeof user, 'object');
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assert.strictEqual(typeof callback, 'function');
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userdb.del(user.id, function (error) {
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if (error && error.reason === DatabaseError.NOT_FOUND) return callback(new UserError(UserError.NOT_FOUND));
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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callback(null);
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mailer.userRemoved(user);
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});
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}
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function listUsers(callback) {
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assert.strictEqual(typeof callback, 'function');
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userdb.getAllWithGroupIds(function (error, result) {
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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var allUsers = result.map(function (obj) {
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var u = _.pick(obj, 'id', 'username', 'email', 'displayName', 'groupIds');
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u.admin = u.groupIds.indexOf(groups.ADMIN_GROUP_ID) !== -1;
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return u;
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});
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return callback(null, allUsers);
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});
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}
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function getUser(userId, callback) {
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assert.strictEqual(typeof userId, 'string');
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assert.strictEqual(typeof callback, 'function');
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userdb.get(userId, function (error, result) {
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if (error && error.reason === DatabaseError.NOT_FOUND) return callback(new UserError(UserError.NOT_FOUND));
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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groups.getGroups(userId, function (error, groupIds) {
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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result.groupIds = groupIds;
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return callback(null, result);
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});
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});
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}
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function getByResetToken(resetToken, callback) {
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assert.strictEqual(typeof resetToken, 'string');
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assert.strictEqual(typeof callback, 'function');
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var error = validateToken(resetToken);
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if (error) return callback(error);
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userdb.getByResetToken(resetToken, function (error, result) {
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if (error && error.reason === DatabaseError.NOT_FOUND) return callback(new UserError(UserError.NOT_FOUND));
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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callback(null, result);
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});
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}
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function updateUser(userId, username, email, displayName, callback) {
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assert.strictEqual(typeof userId, 'string');
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assert.strictEqual(typeof username, 'string');
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assert.strictEqual(typeof email, 'string');
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assert.strictEqual(typeof displayName, 'string');
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assert.strictEqual(typeof callback, 'function');
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var error = validateUsername(username);
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if (error) return callback(error);
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error = validateEmail(email);
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if (error) return callback(error);
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userdb.update(userId, { username: username, email: email, displayName: displayName }, function (error) {
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if (error && error.reason === DatabaseError.ALREADY_EXISTS) return callback(new UserError(UserError.ALREADY_EXISTS, error));
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if (error && error.reason === DatabaseError.NOT_FOUND) return callback(new UserError(UserError.NOT_FOUND, error));
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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callback(null);
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});
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}
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function setGroups(userId, groupIds, callback) {
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assert.strictEqual(typeof userId, 'string');
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assert(Array.isArray(groupIds));
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assert.strictEqual(typeof callback, 'function');
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groups.setGroups(userId, groupIds, function (error) {
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if (error && error.reason === GroupError.NOT_FOUND) return callback(new UserError(UserError.NOT_FOUND, 'One or more groups not found'));
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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if (groupIds.some(function (g) { return g === groups.ADMIN_GROUP_ID; })) {
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getUser(userId, function (error, result) {
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if (error) return console.error('Failed to send admin change mail.', error);
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mailer.adminChanged(result, true);
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});
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}
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callback();
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});
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}
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function getAllAdmins(callback) {
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assert.strictEqual(typeof callback, 'function');
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userdb.getAllAdmins(function (error, admins) {
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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callback(null, admins);
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});
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}
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function resetPasswordByIdentifier(identifier, callback) {
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assert.strictEqual(typeof identifier, 'string');
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assert.strictEqual(typeof callback, 'function');
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var getter;
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if (identifier.indexOf('@') === -1) getter = userdb.getByUsername;
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else getter = userdb.getByEmail;
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getter(identifier, function (error, result) {
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if (error && error.reason === DatabaseError.NOT_FOUND) return callback(new UserError(UserError.NOT_FOUND));
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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result.resetToken = hat(256);
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userdb.update(result.id, result, function (error) {
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if (error && error.reason === DatabaseError.NOT_FOUND) return callback(new UserError(UserError.NOT_FOUND));
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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mailer.passwordReset(result);
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callback(null);
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});
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});
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}
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function setPassword(userId, newPassword, callback) {
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assert.strictEqual(typeof userId, 'string');
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assert.strictEqual(typeof newPassword, 'string');
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assert.strictEqual(typeof callback, 'function');
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var error = validatePassword(newPassword);
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if (error) return callback(new UserError(UserError.BAD_PASSWORD, error.message));
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userdb.get(userId, function (error, user) {
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if (error && error.reason === DatabaseError.NOT_FOUND) return callback(new UserError(UserError.NOT_FOUND));
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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var saltBuffer = new Buffer(user.salt, 'hex');
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crypto.pbkdf2(newPassword, saltBuffer, CRYPTO_ITERATIONS, CRYPTO_KEY_LENGTH, function (error, derivedKey) {
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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user.modifiedAt = (new Date()).toISOString();
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user.password = new Buffer(derivedKey, 'binary').toString('hex');
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user.resetToken = '';
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userdb.update(userId, user, function (error) {
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if (error && error.reason === DatabaseError.NOT_FOUND) return callback(new UserError(UserError.NOT_FOUND));
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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// Also generate a token so the new user can get logged in immediately
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clientdb.getByAppIdAndType('webadmin', clientdb.TYPE_ADMIN, function (error, result) {
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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var token = tokendb.generateToken();
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var expiresAt = Date.now() + 24 * 60 * 60 * 1000; // 1 day
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tokendb.add(token, tokendb.PREFIX_USER + user.id, result.id, expiresAt, '*', function (error) {
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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callback(null, { token: token, expiresAt: expiresAt });
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});
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});
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});
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});
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});
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}
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function changePassword(username, oldPassword, newPassword, callback) {
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assert.strictEqual(typeof username, 'string');
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assert.strictEqual(typeof oldPassword, 'string');
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assert.strictEqual(typeof newPassword, 'string');
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assert.strictEqual(typeof callback, 'function');
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var error = validatePassword(newPassword);
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if (error) return callback(new UserError(UserError.BAD_PASSWORD, error.message));
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verifyWithUsername(username, oldPassword, function (error, user) {
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if (error) return callback(error);
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setPassword(user.id, newPassword, callback);
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});
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}
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function createOwner(username, password, email, displayName, callback) {
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assert.strictEqual(typeof username, 'string');
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assert.strictEqual(typeof password, 'string');
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assert.strictEqual(typeof email, 'string');
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assert.strictEqual(typeof displayName, 'string');
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assert.strictEqual(typeof callback, 'function');
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if (username === '') return callback(new UserError(UserError.BAD_USERNAME, 'Username cannot be empty'));
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userdb.count(function (error, count) {
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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if (count !== 0) return callback(new UserError(UserError.ALREADY_EXISTS));
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createUser(username, password, email, displayName, { owner: true }, function (error, user) {
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if (error) return callback(error);
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groups.addMember(groups.ADMIN_GROUP_ID, user.id, function (error) {
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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callback(null, user);
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});
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});
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});
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}
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function getOwner(callback) {
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userdb.getOwner(function (error, owner) {
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if (error && error.reason === DatabaseError.NOT_FOUND) return callback(new UserError(UserError.NOT_FOUND));
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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return callback(null, owner);
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});
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}
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function sendInvite(userId, callback) {
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assert.strictEqual(typeof userId, 'string');
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assert.strictEqual(typeof callback, 'function');
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userdb.get(userId, function (error, userObject) {
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if (error && error.reason === DatabaseError.NOT_FOUND) return callback(new UserError(UserError.NOT_FOUND));
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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userObject.resetToken = hat(256);
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userdb.update(userId, userObject, function (error) {
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if (error && error.reason === DatabaseError.NOT_FOUND) return callback(new UserError(UserError.NOT_FOUND));
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if (error) return callback(new UserError(UserError.INTERNAL_ERROR, error));
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mailer.sendInvite(userObject, null);
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callback(null, userObject.resetToken);
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});
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});
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}
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