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// $Id$
(function ($) {
/**
* Attach handlers to evaluate the strength of any password fields and to check
* that its confirmation is correct.
*/
Drupal.behaviors.password = {
attach: function (context, settings) {
var translate = settings.password;
$('input.password-field', context).once('password', function () {
var passwordInput = $(this);
var innerWrapper = $(this).parent();
var outerWrapper = $(this).parent().parent();
// Add identifying class to password element parent.
innerWrapper.addClass('password-parent');
// Add the password confirmation layer.
$('input.password-confirm', outerWrapper).after('<div class="password-confirm">' + translate['confirmTitle'] + ' <span></span></div>').parent().addClass('confirm-parent');
var confirmInput = $('input.password-confirm', outerWrapper);
var confirmResult = $('div.password-confirm', outerWrapper);
var confirmChild = $('span', confirmResult);
// Add the description box.
var passwordMeter = '<div class="password-strength"><div class="password-strength-text" aria-live="assertive"></div><div class="password-strength-title">' + translate['strengthTitle'] + '</div><div class="password-indicator"><div class="indicator"></div></div></div>';
$(confirmInput).parent().after('<div class="password-suggestions description"></div>');
$(innerWrapper).prepend(passwordMeter);
var passwordDescription = $('div.password-suggestions', outerWrapper).hide();
// Check the password strength.
var passwordCheck = function () {
// Evaluate the password strength.
var result = Drupal.evaluatePasswordStrength(passwordInput.val(), settings.password);
// Update the suggestions for how to improve the password.
if (passwordDescription.html() != result.message) {
passwordDescription.html(result.message);
}
// Only show the description box if there is a weakness in the password.
if (result.strength == 100) {
passwordDescription.hide();
}
else {
passwordDescription.show();
}
// Adjust the length of the strength indicator.
$(innerWrapper).find('.indicator').css('width', result.strength + '%');
// Update the strength indication text.
$(innerWrapper).find('.password-strength-text').html(result.indicatorText);
passwordCheckMatch();
};
// Check that password and confirmation inputs match.
var passwordCheckMatch = function () {
if (confirmInput.val()) {
var success = passwordInput.val() === confirmInput.val();
// Show the confirm result.
confirmResult.css({ visibility: 'visible' });
// Remove the previous styling if any exists.
if (this.confirmClass) {
confirmChild.removeClass(this.confirmClass);
}
// Fill in the success message and set the class accordingly.
var confirmClass = success ? 'ok' : 'error';
confirmChild.html(translate['confirm' + (success ? 'Success' : 'Failure')]).addClass(confirmClass);
this.confirmClass = confirmClass;
}
else {
confirmResult.css({ visibility: 'hidden' });
}
};
// Monitor keyup and blur events.
// Blur must be used because a mouse paste does not trigger keyup.
passwordInput.keyup(passwordCheck).focus(passwordCheck).blur(passwordCheck);
confirmInput.keyup(passwordCheckMatch).blur(passwordCheckMatch);
});
}
};
/**
* Evaluate the strength of a user's password.
*
* Returns the estimated strength and the relevant output message.
*/
Drupal.evaluatePasswordStrength = function (password, translate) {
var weaknesses = 0, strength = 100, msg = [];
var hasLowercase = password.match(/[a-z]+/);
var hasUppercase = password.match(/[A-Z]+/);
var hasNumbers = password.match(/[0-9]+/);
var hasPunctuation = password.match(/[^a-zA-Z0-9]+/);
// If there is a username edit box on the page, compare password to that, otherwise
// use value from the database.
var usernameBox = $('input.username');
var username = (usernameBox.length > 0) ? usernameBox.val() : translate.username;
// Lose 5 points for every character less than 6, plus a 30 point penalty.
if (password.length < 6) {
msg.push(translate.tooShort);
strength -= ((6 - password.length) * 5) + 30;
}
// Count weaknesses.
if (!hasLowercase) {
msg.push(translate.addLowerCase);
weaknesses++;
}
if (!hasUppercase) {
msg.push(translate.addUpperCase);
weaknesses++;
}
if (!hasNumbers) {
msg.push(translate.addNumbers);
weaknesses++;
}
if (!hasPunctuation) {
msg.push(translate.addPunctuation);
weaknesses++;
}
// Apply penalty for each weakness (balanced against length penalty).
switch (weaknesses) {
case 1:
strength -= 12.5;
break;
case 2:
strength -= 25;
break;
case 3:
strength -= 40;
break;
case 4:
strength -= 40;
break;
}
// Check if password is the same as the username.
if (password !== '' && password.toLowerCase() === username.toLowerCase()) {
msg.push(translate.sameAsUsername);
// Passwords the same as username are always very weak.
strength = 5;
}
// Based on the strength, work out what text should be shown by the password strength meter.
if (strength < 60) {
indicatorText = translate.weak;
} else if (strength < 70) {
indicatorText = translate.fair;
} else if (strength < 80) {
indicatorText = translate.good;
} else if (strength <= 100) {
indicatorText = translate.strong;
}
// Assemble the final message.
msg = translate.hasWeaknesses + '<ul><li>' + msg.join('</li><li>') + '</li></ul>';
return { strength: strength, message: msg, indicatorText: indicatorText }
};
/**
* Field instance settings screen: force the 'Display on registration form'
* checkbox checked whenever 'Required' is checked.
*/
Drupal.behaviors.fieldUserRegistration = {
attach: function (context, settings) {
var $checkbox = $('form#field-ui-field-edit-form input#edit-instance-settings-user-register-form');
if ($checkbox.size()) {
$('input#edit-instance-required', context).once('user-register-form-checkbox', function () {
$(this).bind('change', function (e) {
if ($(this).attr('checked')) {
$checkbox.attr('checked', true);
}
});
});
}
}
};
})(jQuery);
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