307 lines
8.5 KiB
PHP
307 lines
8.5 KiB
PHP
<?php
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/**
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* Shows two password-fields, and checks for matching passwords.
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* Optionally hides the fields by default and shows
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* a link to toggle their visibility.
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*
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* @package forms
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* @subpackage fields-formattedinput
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*/
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class ConfirmedPasswordField extends FormField {
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/**
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* Minimum character length of the password.
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*
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* @var int
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*/
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public $minLength = null;
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/**
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* Maximum character length of the password.
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*
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* @var int
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*/
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public $maxLength = null;
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/**
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* Enforces at least one digit and one alphanumeric
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* character (in addition to {$minLength} and {$maxLength}
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*
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* @var boolean
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*/
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public $requireStrongPassword = false;
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/**
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* Allow empty fields in serverside validation
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*
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* @var boolean
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*/
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public $canBeEmpty = false;
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/**
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* If set to TRUE, the "password" and "confirm password"
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* formfields will be hidden via CSS and JavaScript by default,
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* and triggered by a link. An additional hidden field
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* determines if showing the fields has been triggered,
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* and just validates/saves the input in this case.
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* This behaviour works unobtrusively, without JavaScript enabled
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* the fields show, validate and save by default.
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*
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* @param boolean $showOnClick
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*/
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protected $showOnClick = false;
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/**
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* Title for the link that triggers
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* the visibility of password fields.
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*
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* @var string
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*/
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public $showOnClickTitle;
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/**
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* @param string $name
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* @param string $title
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* @param mixed $value
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* @param Form $form
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* @param boolean $showOnClick
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* @param string $titleConfirmField Alternate title (not localizeable)
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*/
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function __construct($name, $title = null, $value = "", $form = null, $showOnClick = false, $titleConfirmField = null) {
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// naming with underscores to prevent values from actually being saved somewhere
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$this->children = new FieldList(
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new PasswordField(
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"{$name}[_Password]",
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(isset($title)) ? $title : _t('Member.PASSWORD', 'Password')
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),
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new PasswordField(
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"{$name}[_ConfirmPassword]",
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(isset($titleConfirmField)) ? $titleConfirmField : _t('Member.CONFIRMPASSWORD', 'Confirm Password')
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)
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);
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// has to be called in constructor because Field() isn't triggered upon saving the instance
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if($showOnClick) {
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$this->children->push(new HiddenField("{$name}[_PasswordFieldVisible]"));
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}
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$this->showOnClick = $showOnClick;
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// we have labels for the subfields
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$title = false;
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parent::__construct($name, $title, null, $form);
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$this->setValue($value);
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}
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function Field($properties = array()) {
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Requirements::javascript(FRAMEWORK_DIR . '/thirdparty/jquery/jquery.js');
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Requirements::javascript(FRAMEWORK_DIR . '/javascript/ConfirmedPasswordField.js');
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Requirements::css(FRAMEWORK_DIR . '/css/ConfirmedPasswordField.css');
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$content = '';
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if($this->showOnClick) {
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if($this->showOnClickTitle) {
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$title = $this->showOnClickTitle;
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} else {
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$title = _t(
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'ConfirmedPasswordField.SHOWONCLICKTITLE',
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'Change Password',
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'Label of the link which triggers display of the "change password" formfields'
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);
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}
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$content .= "<div class=\"showOnClick\">\n";
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$content .= "<a href=\"#\">{$title}</a>\n";
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$content .= "<div class=\"showOnClickContainer\">";
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}
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foreach($this->children as $field) {
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$field->setDisabled($this->isDisabled());
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$field->setReadonly($this->isReadonly());
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$content .= $field->FieldHolder();
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}
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if($this->showOnClick) {
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$content .= "</div>\n";
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$content .= "</div>\n";
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}
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return $content;
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}
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/**
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* Can be empty is a flag that turns on/off empty field checking.
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* For example, set this to false (the default) when creating a user account,
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* and true
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*/
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function setCanBeEmpty($value) {
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$this->canBeEmpty = (bool)$value;
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return $this;
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}
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/**
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* The title on the link which triggers display of the
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* "password" and "confirm password" formfields.
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* Only used if {@link setShowOnClick()} is set to TRUE.
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*
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* @param $title
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*/
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public function setShowOnClickTitle($title) {
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$this->showOnClickTitle = $title;
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return $this;
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}
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/**
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* @return string
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*/
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public function getShowOnClickTitle() {
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return $this->showOnClickTitle;
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}
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function setRightTitle($title) {
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foreach($this->children as $field) {
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$field->setRightTitle($title);
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}
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return $this;
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}
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/**
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* @param array: 2 entrie array with the customised title for each of the 2 children.
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*/
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function setChildrenTitles($titles) {
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if(is_array($titles)&&count($titles)==2){
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foreach($this->children as $field) {
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if(isset($titles[0])){
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$field->setTitle($titles[0]);
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array_shift($titles);
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}
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}
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}
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return $this;
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}
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/**
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* Value is sometimes an array, and sometimes a single value, so we need to handle both cases
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*/
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function setValue($value) {
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if(is_array($value)) {
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if($value['_Password'] || (!$value['_Password'] && !$this->canBeEmpty)) {
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$this->value = $value['_Password'];
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}
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if($this->showOnClick && isset($value['_PasswordFieldVisible'])){
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$this->children->fieldByName($this->getName() . '[_PasswordFieldVisible]')->setValue($value['_PasswordFieldVisible']);
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}
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} else {
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if($value || (!$value && $this->canBeEmpty)) {
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$this->value = $value;
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}
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}
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$this->children->fieldByName($this->getName() . '[_Password]')->setValue($this->value);
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$this->children->fieldByName($this->getName() . '[_ConfirmPassword]')->setValue($this->value);
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return $this;
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}
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/**
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* Determines if the field was actually
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* shown on the clientside - if not,
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* we don't validate or save it.
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*
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* @return bool
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*/
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function isSaveable() {
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$isVisible = $this->children->fieldByName($this->getName() . '[_PasswordFieldVisible]');
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return (!$this->showOnClick || ($this->showOnClick && $isVisible && $isVisible->Value()));
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}
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function validate($validator) {
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$name = $this->name;
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// if field isn't visible, don't validate
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if(!$this->isSaveable()) return true;
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$passwordField = $this->children->fieldByName($name.'[_Password]');
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$passwordConfirmField = $this->children->fieldByName($name.'[_ConfirmPassword]');
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$passwordField->setValue($_POST[$name]['_Password']);
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$passwordConfirmField->setValue($_POST[$name]['_ConfirmPassword']);
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$value = $passwordField->Value();
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// both password-fields should be the same
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if($value != $passwordConfirmField->Value()) {
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$validator->validationError($name, _t('Form.VALIDATIONPASSWORDSDONTMATCH',"Passwords don't match"), "validation", false);
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return false;
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}
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if(!$this->canBeEmpty) {
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// both password-fields shouldn't be empty
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if(!$value || !$passwordConfirmField->Value()) {
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$validator->validationError($name, _t('Form.VALIDATIONPASSWORDSNOTEMPTY', "Passwords can't be empty"), "validation", false);
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return false;
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}
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}
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// lengths
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if(($this->minLength || $this->maxLength)) {
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if($this->minLength && $this->maxLength) {
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$limit = "{{$this->minLength},{$this->maxLength}}";
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$errorMsg = sprintf(_t('ConfirmedPasswordField.BETWEEN', 'Passwords must be %s to %s characters long.'), $this->minLength, $this->maxLength);
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} elseif($this->minLength) {
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$limit = "{{$this->minLength}}.*";
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$errorMsg = sprintf(_t('ConfirmedPasswordField.ATLEAST', 'Passwords must be at least %s characters long.'), $this->minLength);
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} elseif($this->maxLength) {
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$limit = "{0,{$this->maxLength}}";
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$errorMsg = sprintf(_t('ConfirmedPasswordField.MAXIMUM', 'Passwords must be at most %s characters long.'), $this->maxLength);
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}
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$limitRegex = '/^.' . $limit . '$/';
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if(!empty($value) && !preg_match($limitRegex,$value)) {
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$validator->validationError('Password', $errorMsg,
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"validation",
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false
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);
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}
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}
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if($this->requireStrongPassword) {
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if(!preg_match('/^(([a-zA-Z]+\d+)|(\d+[a-zA-Z]+))[a-zA-Z0-9]*$/',$value)) {
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$validator->validationError(
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'Password',
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_t('Form.VALIDATIONSTRONGPASSWORD', "Passwords must have at least one digit and one alphanumeric character."),
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"validation",
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false
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);
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return false;
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}
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}
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return true;
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}
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/**
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* Only save if field was shown on the client,
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* and is not empty.
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*
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* @param DataObject $record
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* @return bool
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*/
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function saveInto(DataObjectInterface $record) {
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if(!$this->isSaveable()) return false;
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if(!($this->canBeEmpty && !$this->value)) {
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parent::saveInto($record);
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}
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}
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/**
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* Makes a pretty readonly field with some stars in it
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*/
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function performReadonlyTransformation() {
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$stars = '*****';
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$field = new ReadonlyField($this->name, $this->title ? $this->title : _t('Member.PASSWORD'), $stars);
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$field->setForm($this->form);
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return $field;
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}
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}
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