silverstripe-framework/forms/ConfirmedPasswordField.php

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<?php
/**
* Shows two password-fields, and checks for matching passwords.
* Optionally hides the fields by default and shows
* a link to toggle their visibility.
*
* @package forms
* @subpackage fields-formattedinput
*/
class ConfirmedPasswordField extends FormField {
/**
* Minimum character length of the password.
*
* @var int
*/
public $minLength = null;
/**
* Maximum character length of the password.
*
* @var int
*/
public $maxLength = null;
/**
* Enforces at least one digit and one alphanumeric
* character (in addition to {$minLength} and {$maxLength}
*
* @var boolean
*/
public $requireStrongPassword = false;
/**
* Allow empty fields in serverside validation
*
* @var boolean
*/
public $canBeEmpty = false;
/**
* Hide the two password fields by default,
* and provide a link instead that toggles them.
*
* @var boolean
*/
protected $showOnClick = false;
/**
* Title for the link that triggers
* the visibility of password fields.
*
* @var string
*/
public $showOnClickTitle = 'Change Password';
/**
* @param string $name
* @param string $title
* @param mixed $value
* @param Form $form
* @param boolean $showOnClick
* @param string $titleConfirmField Alternate title (not localizeable)
*/
function __construct($name, $title = null, $value = "", $form = null, $showOnClick = false, $titleConfirmField = null) {
// naming with underscores to prevent values from actually being saved somewhere
$this->children = new FieldSet(
new PasswordField(
"{$name}[_Password]",
(isset($title)) ? $title : _t('Member.PASSWORD')),
new PasswordField(
"{$name}[_ConfirmPassword]",
(isset($titleConfirmField)) ? $titleConfirmField : _t('Member.CONFIRMPASSWORD', 'Confirm Password')
)
);
$this->showOnClick = $showOnClick;
if($this->showOnClick) {
$this->children->push(new HiddenField("{$name}[_PasswordFieldVisible]"));
}
// we have labels for the subfields
$title = false;
parent::__construct($name, $title, $value, $form);
}
function Field() {
Requirements::javascript(THIRDPARTY_DIR . '/prototype.js');
Requirements::javascript(THIRDPARTY_DIR . '/behaviour.js');
Requirements::javascript(THIRDPARTY_DIR . '/prototype_improvements.js');
Requirements::javascript(SAPPHIRE_DIR . '/javascript/ConfirmedPasswordField.js');
$content = '';
if($this->showOnClick) {
$content .= "<div class=\"showOnClick\">\n";
$content .= "<a href=\"#\"" . $this->getTabIndexHTML() . ">{$this->showOnClickTitle}</a>\n";
$content .= "<div class=\"showOnClickContainer\">";
}
foreach($this->children as $field) {
$content .= $field->FieldHolder();
}
if($this->showOnClick) {
$content .= "</div>\n";
$content .= "</div>\n";
}
return $content;
}
/**
* Can be empty is a flag that turns on/off empty field checking.
* For example, set this to false (the default) when creating a user account,
* and true
*/
function setCanBeEmpty($value) {
$this->canBeEmpty = (bool)$value;
}
function setRightTitle($title) {
foreach($this->children as $field) {
$field->setRightTitle($title);
}
}
/**
* Value is sometimes an array, and sometimes a single value, so we need to handle both cases
*/
function setValue($value) {
if(is_array($value)) {
if($value['_Password'] || (!$value['_Password'] && !$this->canBeEmpty)) {
$this->value = $value['_Password'];
}
if(isset($value['_PasswordFieldVisible'])){
$this->children->fieldByName($this->Name() . '[_PasswordFieldVisible]')->setValue($value['_PasswordFieldVisible']);
}
} else {
if($value || (!$value && !$this->canBeEmpty)) {
$this->value = $value;
}
}
}
function jsValidation() {
$formID = $this->form->FormName();
$jsTests = '';
$jsTests .= "
// if fields are hidden, reset values and don't validate
var containers = $$('.showOnClickContainer', $('#'+fieldName));
if(containers.length && !Element.visible(containers[0])) {
passEl.value = null;
confEl.value = null;
return true;
}
";
$error1 = _t('ConfirmedPasswordField.HAVETOMATCH', 'Passwords have to match.');
$jsTests .= "
if(passEl.value != confEl.value) {
validationError(confEl, \"$error1\", \"error\");
return false;
}
";
$error2 = _t('ConfirmedPasswordField.NOEMPTY', 'Passwords can\'t be empty.');
if(!$this->canBeEmpty) {
$jsTests .= "
if(!passEl.value || !confEl.value) {
validationError(confEl, \"$error2\", \"error\");
return false;
}
";
}
if(($this->minLength || $this->maxLength)) {
if($this->minLength && $this->maxLength) {
$limit = "{{$this->minLength},{$this->maxLength}}";
$errorMsg = sprintf(_t('ConfirmedPasswordField.BETWEEN', 'Passwords must be %s to %s characters long.'), $this->minLength, $this->maxLength);
} elseif($this->minLength) {
$limit = "{{$this->minLength}}.*";
$errorMsg = sprintf(_t('ConfirmedPasswordField.ATLEAST', 'Passwords must be at least %s characters long.'), $this->minLength);
} elseif($this->maxLength) {
$limit = "{0,{$this->maxLength}}";
$errorMsg = sprintf(_t('ConfirmedPasswordField.MAXIMUM', 'Passwords must be at most %s characters long.'), $this->maxLength);
}
$limitRegex = '/^.' . $limit . '$/';
$jsTests .= "
if(passEl.value && !passEl.value.match({$limitRegex})) {
validationError(confEl, \"{$errorMsg}\", \"error\");
return false;
}
";
}
$error3 = _t('ConfirmedPasswordField.LEASTONE', 'Passwords must have at least one digit and one alphanumeric character.');
if($this->requireStrongPassword) {
$jsTests .= "
if(!passEl.value.match(/^(([a-zA-Z]+\d+)|(\d+[a-zA-Z]+))[a-zA-Z0-9]*$/)) {
validationError(
confEl,
\"$error3\",
\"error\"
);
return false;
}
";
}
$jsFunc =<<<JS
Behaviour.register({
"#$formID": {
validateConfirmedPassword: function(fieldName) {
var passEl = _CURRENT_FORM.elements['Password[_Password]'];
var confEl = _CURRENT_FORM.elements['Password[_ConfirmPassword]'];
$jsTests
return true;
}
}
});
JS;
Requirements :: customScript($jsFunc, 'func_validateConfirmedPassword');
//return "\$('$formID').validateConfirmedPassword('$this->name');";
return <<<JS
if(typeof fromAnOnBlur != 'undefined'){
if(fromAnOnBlur.name == '$this->name')
$('$formID').validateConfirmedPassword('$this->name');
}else{
$('$formID').validateConfirmedPassword('$this->name');
}
JS;
}
/**
* Determines if the field was actually
* shown on the clientside - if not,
* we don't validate or save it.
*
* @return bool
*/
function isSaveable() {
$isVisible = $this->children->fieldByName($this->Name() . '[_PasswordFieldVisible]');
return (!$this->showOnClick || ($this->showOnClick && $isVisible && $isVisible->Value()));
}
function validate() {
$validator = $this->form->getValidator();
$name = $this->name;
// if field isn't visible, don't validate
if(!$this->isSaveable()) return true;
$passwordField = $this->children->fieldByName($name.'[_Password]');
$passwordConfirmField = $this->children->fieldByName($name.'[_ConfirmPassword]');
$passwordField->setValue($_POST[$name]['_Password']);
$passwordConfirmField->setValue($_POST[$name]['_ConfirmPassword']);
$value = $passwordField->Value();
// both password-fields should be the same
if($value != $passwordConfirmField->Value()) {
$validator->validationError($name, _t('Form.VALIDATIONPASSWORDSDONTMATCH',"Passwords don't match"), "validation", false);
return false;
}
if(!$this->canBeEmpty) {
// both password-fields shouldn't be empty
if(!$value || !$passwordConfirmField->Value()) {
$validator->validationError($name, _t('Form.VALIDATIONPASSWORDSNOTEMPTY', "Passwords can't be empty"), "validation", false);
return false;
}
}
// lengths
if(($this->minLength || $this->maxLength)) {
if($this->minLength && $this->maxLength) {
$limit = "{{$this->minLength},{$this->maxLength}}";
$errorMsg = sprintf(_t('ConfirmedPasswordField.BETWEEN', 'Passwords must be %s to %s characters long.'), $this->minLength, $this->maxLength);
} elseif($this->minLength) {
$limit = "{{$this->minLength}}.*";
$errorMsg = sprintf(_t('ConfirmedPasswordField.ATLEAST', 'Passwords must be at least %s characters long.'), $this->minLength);
} elseif($this->maxLength) {
$limit = "{0,{$this->maxLength}}";
$errorMsg = sprintf(_t('ConfirmedPasswordField.MAXIMUM', 'Passwords must be at most %s characters long.'), $this->maxLength);
}
$limitRegex = '/^.' . $limit . '$/';
if(!empty($value) && !preg_match($limitRegex,$value)) {
$validator->validationError('Password', $errorMsg,
"validation",
false
);
}
}
if($this->requireStrongPassword) {
if(!preg_match('/^(([a-zA-Z]+\d+)|(\d+[a-zA-Z]+))[a-zA-Z0-9]*$/',$value)) {
$validator->validationError(
'Password',
_t('Form.VALIDATIONSTRONGPASSWORD', "Passwords must have at least one digit and one alphanumeric character."),
"validation",
false
);
return false;
}
}
return true;
}
/**
* Only save if field was shown on the client,
* and is not empty.
*
* @param DataObject $record
* @return bool
*/
function saveInto(DataObject $record) {
if(!$this->isSaveable()) return false;
if(!($this->canBeEmpty && !$this->value)) {
parent::saveInto($record);
}
}
/**
* Makes a pretty readonly field with some stars in it
*/
function performReadonlyTransformation() {
$stars = '*****';
$field = new ReadonlyField($this->name, $this->title ? $this->title : _t('Member.PASSWORD'), $stars);
$field->setForm($this->form);
return $field;
}
}