enigma-bbs/core/system_view_validate.js

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var user = require('./user.js');
var Config = require('./config.js').config;
exports.validateNonEmpty = validateNonEmpty;
exports.validateMessageSubject = validateMessageSubject;
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exports.validateUserNameAvail = validateUserNameAvail;
exports.validateEmailAvail = validateEmailAvail;
exports.validateBirthdate = validateBirthdate;
exports.validatePasswordSpec = validatePasswordSpec;
function validateNonEmpty(data, cb) {
cb(data && data.length > 0 ? null : new Error('Field cannot be empty'));
}
function validateMessageSubject(data, cb) {
cb(data && data.length > 1 ? null : new Error('Subject too short'));
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}
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function validateUserNameAvail(data, cb) {
if(data.length < Config.users.usernameMin) {
cb(new Error('Username too short'));
} else if(data.length > Config.users.usernameMax) {
// generally should be unreached due to view restraints
cb(new Error('Username too long'));
} else {
var usernameRegExp = new RegExp(Config.users.usernamePattern);
var invalidNames = Config.users.newUserNames + Config.users.badUserNames;
if(!usernameRegExp.test(data)) {
cb(new Error('Username contains invalid characters'));
} else if(invalidNames.indexOf(data.toLowerCase()) > -1) {
cb(new Error('Username is blacklisted'));
} else {
user.getUserIdAndName(data, function userIdAndName(err) {
if(!err) { // err is null if we succeeded -- meaning this user exists already
cb(new Error('Userame unavailable'));
} else {
cb(null);
}
});
}
}
}
function validateEmailAvail(data, cb) {
//
// This particular method allows empty data - e.g. no email entered
//
if(!data || 0 === data.length) {
return cb(null);
}
//
// Otherwise, it must be a valid email. We'll be pretty lose here, like
// the HTML5 spec.
//
// See http://stackoverflow.com/questions/7786058/find-the-regex-used-by-html5-forms-for-validation
//
var emailRegExp = /[a-z0-9!#$%&'*+\/=?^_`{|}~.-]+@[a-z0-9-]+(.[a-z0-9-]+)*/;
if(!emailRegExp.test(data)) {
return cb(new Error('Invalid email address'));
}
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user.getUserIdsWithProperty('email_address', data, function userIdsWithEmail(err, uids) {
if(err) {
cb(new Error('Internal system error'));
} else if(uids.length > 0) {
cb(new Error('Email address not unique'));
} else {
cb(null);
}
});
}
function validateBirthdate(data, cb) {
// :TODO: check for dates in the future, or > reasonable values
cb(isNaN(Date.parse(data)) ? new Error('Invalid birthdate') : null);
}
function validatePasswordSpec(data, cb) {
cb((!data || data.length < Config.users.passwordMin) ? new Error('Password too short') : null);
}