124 lines
3.5 KiB
JavaScript
124 lines
3.5 KiB
JavaScript
/* jslint node: true */
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'use strict';
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// ENiGMA½
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const User = require('./user.js');
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const Config = require('./config.js').config;
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const Log = require('./logger.js').log;
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// deps
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const fs = require('fs');
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exports.validateNonEmpty = validateNonEmpty;
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exports.validateMessageSubject = validateMessageSubject;
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exports.validateUserNameAvail = validateUserNameAvail;
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exports.validateUserNameExists = validateUserNameExists;
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exports.validateEmailAvail = validateEmailAvail;
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exports.validateBirthdate = validateBirthdate;
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exports.validatePasswordSpec = validatePasswordSpec;
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function validateNonEmpty(data, cb) {
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return cb(data && data.length > 0 ? null : new Error('Field cannot be empty'));
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}
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function validateMessageSubject(data, cb) {
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return cb(data && data.length > 1 ? null : new Error('Subject too short'));
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}
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function validateUserNameAvail(data, cb) {
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if(!data || data.length < Config.users.usernameMin) {
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cb(new Error('Username too short'));
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} else if(data.length > Config.users.usernameMax) {
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// generally should be unreached due to view restraints
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return cb(new Error('Username too long'));
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} else {
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const usernameRegExp = new RegExp(Config.users.usernamePattern);
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const invalidNames = Config.users.newUserNames + Config.users.badUserNames;
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if(!usernameRegExp.test(data)) {
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return cb(new Error('Username contains invalid characters'));
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} else if(invalidNames.indexOf(data.toLowerCase()) > -1) {
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return cb(new Error('Username is blacklisted'));
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} else if(/^[0-9]+$/.test(data)) {
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return cb(new Error('Username cannot be a number'));
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} else {
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User.getUserIdAndName(data, function userIdAndName(err) {
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if(!err) { // err is null if we succeeded -- meaning this user exists already
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return cb(new Error('Username unavailable'));
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}
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return cb(null);
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});
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}
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}
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}
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function validateUserNameExists(data, cb) {
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const invalidUserNameError = new Error('Invalid username');
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if(0 === data.length) {
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return cb(invalidUserNameError);
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}
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User.getUserIdAndName(data, (err) => {
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return cb(err ? invalidUserNameError : null);
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});
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}
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function validateEmailAvail(data, cb) {
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//
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// This particular method allows empty data - e.g. no email entered
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//
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if(!data || 0 === data.length) {
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return cb(null);
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}
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//
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// Otherwise, it must be a valid email. We'll be pretty lose here, like
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// the HTML5 spec.
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//
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// See http://stackoverflow.com/questions/7786058/find-the-regex-used-by-html5-forms-for-validation
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//
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const emailRegExp = /[a-z0-9!#$%&'*+\/=?^_`{|}~.-]+@[a-z0-9-]+(.[a-z0-9-]+)*/;
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if(!emailRegExp.test(data)) {
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return cb(new Error('Invalid email address'));
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}
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User.getUserIdsWithProperty('email_address', data, function userIdsWithEmail(err, uids) {
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if(err) {
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return cb(new Error('Internal system error'));
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} else if(uids.length > 0) {
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return cb(new Error('Email address not unique'));
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}
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return cb(null);
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});
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}
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function validateBirthdate(data, cb) {
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// :TODO: check for dates in the future, or > reasonable values
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return cb(isNaN(Date.parse(data)) ? new Error('Invalid birthdate') : null);
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}
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function validatePasswordSpec(data, cb) {
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if(!data || data.length < Config.users.passwordMin) {
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return cb(new Error('Password too short'));
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}
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// check badpass, if avail
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fs.readFile(Config.users.badPassFile, 'utf8', (err, passwords) => {
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if(err) {
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Log.warn( { error : err.message }, 'Cannot read bad pass file');
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return cb(null);
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}
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passwords = passwords.toString().split(/\r\n|\n/g);
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if(passwords.includes(data)) {
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return cb(new Error('Password is too common'));
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}
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return cb(null);
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});
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}
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