919 lines
25 KiB
PHP
919 lines
25 KiB
PHP
<?php
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namespace Icinga\Web;
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use LogicException;
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use Zend_Config;
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use Zend_Form;
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use Zend_View_Interface;
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use Icinga\Application\Icinga;
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use Icinga\Authentication\Manager;
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use Icinga\Security\SecurityException;
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use Icinga\Util\Translator;
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use Icinga\Web\Form\Decorator\NoScriptApply;
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use Icinga\Web\Form\Element\CsrfCounterMeasure;
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/**
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* Base class for forms providing CSRF protection, confirmation logic and auto submission
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*
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* @method $this setDefaults(array $defaults) {
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* Use `Form::populate()' for setting default values for elements instead because `Form::setDefaults()' does not
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* create the form via `Form::create()'.
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*
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* Due to a BC introduced with https://github.com/mhujer/zf1/commit/244e3d3f88a363ee0ca49cf63eee31f925f515cd
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* we cannot override this function without running into a strict standards violation on Zend version 1.12.7.
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*
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* @param array $defaults
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*
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* @return $this
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* }
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*/
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class Form extends Zend_Form
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{
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/**
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* Whether this form has been created
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*
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* @var bool
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*/
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protected $created = false;
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/**
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* The request associated with this form
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*
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* @var Request
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*/
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protected $request;
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/**
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* The callback to call instead of Form::onSuccess()
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*
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* @var callable
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*/
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protected $onSuccess;
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/**
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* Label to use for the standard submit button
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*
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* @var string
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*/
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protected $submitLabel;
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/**
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* The url to redirect to upon success
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*
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* @var string|Url
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*/
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protected $redirectUrl;
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/**
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* The view script to use when rendering this form
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*
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* @var string
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*/
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protected $viewScript;
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/**
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* Whether this form should NOT add random generated "challenge" tokens that are associated with the user's current
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* session in order to prevent Cross-Site Request Forgery (CSRF). It is the form's responsibility to verify the
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* existence and correctness of this token
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*
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* @var bool
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*/
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protected $tokenDisabled = false;
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/**
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* Name of the CSRF token element
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*
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* @var string
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*/
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protected $tokenElementName = 'CSRFToken';
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/**
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* Whether this form should add a UID element being used to distinct different forms posting to the same action
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*
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* @var bool
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*/
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protected $uidDisabled = false;
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/**
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* Name of the form identification element
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*
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* @var string
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*/
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protected $uidElementName = 'formUID';
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/**
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* Whether the form should validate the sent data when being automatically submitted
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*
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* @var bool
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*/
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protected $validatePartial = false;
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/**
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* Authentication manager
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*
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* @type Manager|null
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*/
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private $auth;
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/**
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* Default element decorators
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*
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* @var array
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*/
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public static $defaultElementDecorators = array(
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array('ViewHelper', array('separator' => '')),
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array('Errors', array('separator' => '')),
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array('Label', array('separator' => '')),
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array('HtmlTag', array('tag' => 'div', 'class' => 'element'))
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);
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/**
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* (non-PHPDoc)
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* @see \Zend_Form::construct() For the method documentation.
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*/
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public function __construct($options = null)
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{
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// Zend's plugin loader reverses the order of added prefix paths thus trying our paths first before trying
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// Zend paths
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$this->addPrefixPaths(array(
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array(
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'prefix' => 'Icinga\\Web\\Form\\Element\\',
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'path' => Icinga::app()->getLibraryDir('Icinga/Web/Form/Element'),
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'type' => static::ELEMENT
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),
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array(
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'prefix' => 'Icinga\\Web\\Form\\Decorator\\',
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'path' => Icinga::app()->getLibraryDir('Icinga/Web/Form/Decorator'),
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'type' => static::DECORATOR
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)
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));
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parent::__construct($options);
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}
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/**
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* Set a callback that is called instead of this form's onSuccess method
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*
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* It is called using the following signature: (Form $this).
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*
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* @param callable $onSuccess Callback
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*
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* @return $this
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*
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* @throws LogicException If the callback is not callable
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*/
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public function setOnSuccess($onSuccess)
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{
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if (! is_callable($onSuccess)) {
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throw new LogicException('The option `onSuccess\' is not callable');
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}
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$this->onSuccess = $onSuccess;
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return $this;
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}
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/**
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* Set the label to use for the standard submit button
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*
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* @param string $label The label to use for the submit button
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*
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* @return self
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*/
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public function setSubmitLabel($label)
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{
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$this->submitLabel = $label;
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return $this;
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}
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/**
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* Return the label being used for the standard submit button
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*
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* @return string
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*/
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public function getSubmitLabel()
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{
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return $this->submitLabel;
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}
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/**
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* Set the url to redirect to upon success
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*
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* @param string|Url $url The url to redirect to
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*
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* @return self
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*/
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public function setRedirectUrl($url)
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{
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$this->redirectUrl = $url;
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return $this;
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}
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/**
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* Return the url to redirect to upon success
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*
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* @return string|Url
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*/
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public function getRedirectUrl()
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{
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if ($this->redirectUrl === null) {
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$url = Url::fromRequest(array(), $this->getRequest());
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// Be sure to remove all form dependent params because we do not want to submit it again
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$this->redirectUrl = $url->without(array_keys($this->getElements()));
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}
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return $this->redirectUrl;
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}
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/**
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* Set the view script to use when rendering this form
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*
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* @param string $viewScript The view script to use
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*
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* @return self
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*/
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public function setViewScript($viewScript)
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{
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$this->viewScript = $viewScript;
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return $this;
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}
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/**
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* Return the view script being used when rendering this form
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*
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* @return string
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*/
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public function getViewScript()
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{
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return $this->viewScript;
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}
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/**
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* Disable CSRF counter measure and remove its field if already added
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*
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* @param bool $disabled Set true in order to disable CSRF protection for this form, otherwise false
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*
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* @return self
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*/
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public function setTokenDisabled($disabled = true)
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{
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$this->tokenDisabled = (bool) $disabled;
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if ($disabled && $this->getElement($this->tokenElementName) !== null) {
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$this->removeElement($this->tokenElementName);
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}
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return $this;
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}
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/**
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* Return whether CSRF counter measures are disabled for this form
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*
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* @return bool
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*/
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public function getTokenDisabled()
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{
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return $this->tokenDisabled;
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}
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/**
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* Set the name to use for the CSRF element
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*
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* @param string $name The name to set
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*
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* @return self
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*/
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public function setTokenElementName($name)
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{
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$this->tokenElementName = $name;
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return $this;
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}
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/**
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* Return the name of the CSRF element
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*
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* @return string
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*/
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public function getTokenElementName()
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{
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return $this->tokenElementName;
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}
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/**
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* Disable form identification and remove its field if already added
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*
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* @param bool $disabled Set true in order to disable identification for this form, otherwise false
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*
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* @return self
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*/
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public function setUidDisabled($disabled = true)
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{
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$this->uidDisabled = (bool) $disabled;
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if ($disabled && $this->getElement($this->uidElementName) !== null) {
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$this->removeElement($this->uidElementName);
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}
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return $this;
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}
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/**
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* Return whether identification is disabled for this form
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*
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* @return bool
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*/
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public function getUidDisabled()
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{
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return $this->uidDisabled;
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}
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/**
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* Set the name to use for the form identification element
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*
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* @param string $name The name to set
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*
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* @return self
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*/
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public function setUidElementName($name)
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{
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$this->uidElementName = $name;
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return $this;
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}
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/**
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* Return the name of the form identification element
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*
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* @return string
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*/
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public function getUidElementName()
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{
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return $this->uidElementName;
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}
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/**
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* Set whether this form should validate the sent data when being automatically submitted
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*
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* @param bool $state
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*
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* @return self
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*/
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public function setValidatePartial($state)
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{
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$this->validatePartial = $state;
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return $this;
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}
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/**
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* Return whether this form should validate the sent data when being automatically submitted
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*
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* @return bool
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*/
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public function getValidatePartial()
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{
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return $this->validatePartial;
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}
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/**
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* Create this form
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*
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* @param array $formData The data sent by the user
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*
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* @return self
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*/
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public function create(array $formData = array())
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{
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if (false === $this->created) {
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$this->createElements($formData);
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$this->addFormIdentification()
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->addCsrfCounterMeasure()
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->addSubmitButton();
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if ($this->getAction() === '') {
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// We MUST set an action as JS gets confused otherwise, if
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// this form is being displayed in an additional column
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$this->setAction(Url::fromRequest()->without(array_keys($this->getElements())));
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}
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$this->created = true;
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}
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return $this;
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}
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/**
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* Create and add elements to this form
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*
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* Intended to be implemented by concrete form classes.
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*
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* @param array $formData The data sent by the user
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*/
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public function createElements(array $formData)
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{
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}
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/**
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* Perform actions after this form was submitted using a valid request
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*
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* Intended to be implemented by concrete form classes. The base implementation returns always FALSE.
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*
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* @return null|bool Return FALSE in case no redirect should take place
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*/
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public function onSuccess()
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{
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return false;
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}
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/**
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* Perform actions when no form dependent data was sent
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*
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* Intended to be implemented by concrete form classes.
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*/
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public function onRequest()
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{
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}
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/**
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* Add a submit button to this form
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*
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* Uses the label previously set with Form::setSubmitLabel(). Overwrite this
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* method in order to add multiple submit buttons or one with a custom name.
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*
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* @return self
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*/
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public function addSubmitButton()
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{
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$submitLabel = $this->getSubmitLabel();
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if ($submitLabel) {
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$this->addElement(
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'submit',
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'btn_submit',
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array(
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'ignore' => true,
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'label' => $submitLabel,
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'decorators' => array(
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'ViewHelper',
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array('HtmlTag', array('tag' => 'div'))
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)
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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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* Add a subform
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*
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* @param Zend_Form $form The subform to add
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* @param string $name The name of the subform or null to use the name of $form
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* @param int $order The location where to insert the form
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*
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* @return Zend_Form
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*/
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public function addSubForm(Zend_Form $form, $name = null, $order = null)
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{
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if ($form instanceof self) {
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$form->removeDecorator('Form');
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$form->setSubmitLabel('');
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$form->setTokenDisabled();
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$form->setUidDisabled();
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}
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if ($name === null) {
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$name = $form->getName();
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}
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return parent::addSubForm($form, $name, $order);
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}
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/**
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* Create a new element
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*
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* Icinga Web 2 loads its own default element decorators. For loading Zend's default element decorators set the
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* `disableLoadDefaultDecorators' option to any other value than `true'. For loading custom element decorators use
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* the 'decorators' option.
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*
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* @param string $type The type of the element
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* @param string $name The name of the element
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* @param mixed $options The options for the element
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*
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* @return Zend_Form_Element
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*
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* @see Form::$defaultElementDecorators For Icinga Web 2's default element decorators.
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*/
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public function createElement($type, $name, $options = null)
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{
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if ($options !== null) {
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if ($options instanceof Zend_Config) {
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$options = $options->toArray();
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}
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if (! isset($options['decorators'])
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&& ! array_key_exists('disabledLoadDefaultDecorators', $options)
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) {
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$options['decorators'] = static::$defaultElementDecorators;
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}
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} else {
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$options = array('decorators' => static::$defaultElementDecorators);
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}
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$el = parent::createElement($type, $name, $options);
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if (($description = $el->getDescription()) !== null && ($label = $el->getDecorator('label')) !== false) {
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$label->setOptions(array(
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'title' => $description,
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'class' => 'has-feedback'
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));
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}
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if ($el->getAttrib('autosubmit')) {
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$noScript = new NoScriptApply(); // Non-JS environments
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$decorators = $el->getDecorators();
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$pos = array_search('Zend_Form_Decorator_ViewHelper', array_keys($decorators)) + 1;
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$el->setDecorators(
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array_slice($decorators, 0, $pos, true)
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+ array(get_class($noScript) => $noScript)
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+ array_slice($decorators, $pos, count($decorators) - $pos, true)
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);
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$class = $el->getAttrib('class');
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if (is_array($class)) {
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$class[] = 'autosubmit';
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} elseif ($class === null) {
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$class = 'autosubmit';
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} else {
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$class .= ' autosubmit';
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}
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$el->setAttrib('class', $class); // JS environments
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unset($el->autosubmit);
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}
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return $el;
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}
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|
|
/**
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* Add a field with a unique and form specific ID
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*
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* @return self
|
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*/
|
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public function addFormIdentification()
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{
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if (false === $this->uidDisabled && $this->getElement($this->uidElementName) === null) {
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$this->addElement(
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'hidden',
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$this->uidElementName,
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array(
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'ignore' => true,
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'value' => $this->getName(),
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'decorators' => array('ViewHelper')
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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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* Add CSRF counter measure field to this form
|
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*
|
|
* @return self
|
|
*/
|
|
public function addCsrfCounterMeasure()
|
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{
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if (false === $this->tokenDisabled && $this->getElement($this->tokenElementName) === null) {
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$this->addElement(new CsrfCounterMeasure($this->tokenElementName));
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}
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return $this;
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}
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|
|
|
/**
|
|
* Populate the elements with the given values
|
|
*
|
|
* @param array $defaults The values to populate the elements with
|
|
*/
|
|
public function populate(array $defaults)
|
|
{
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$this->create($defaults);
|
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return parent::populate($defaults);
|
|
}
|
|
|
|
/**
|
|
* Process the given request using this form
|
|
*
|
|
* Redirects to the url set with setRedirectUrl() upon success. See onSuccess()
|
|
* and onRequest() wherewith you can customize the processing logic.
|
|
*
|
|
* @param Request $request The request to be processed
|
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*
|
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* @return Request The request supposed to be processed
|
|
*/
|
|
public function handleRequest(Request $request = null)
|
|
{
|
|
if ($request === null) {
|
|
$request = $this->getRequest();
|
|
} else {
|
|
$this->request = $request;
|
|
}
|
|
|
|
$formData = $this->getRequestData();
|
|
if ($this->getUidDisabled() || $this->wasSent($formData)) {
|
|
$this->populate($formData); // Necessary to get isSubmitted() to work
|
|
if (! $this->getSubmitLabel() || $this->isSubmitted()) {
|
|
if ($this->isValid($formData)
|
|
&& (($this->onSuccess !== null && false !== call_user_func($this->onSuccess, $this))
|
|
|| ($this->onSuccess === null && false !== $this->onSuccess()))) {
|
|
$this->getResponse()->redirectAndExit($this->getRedirectUrl());
|
|
}
|
|
} elseif ($this->getValidatePartial()) {
|
|
// The form can't be processed but we may want to show validation errors though
|
|
$this->isValidPartial($formData);
|
|
}
|
|
} else {
|
|
$this->onRequest();
|
|
}
|
|
|
|
return $request;
|
|
}
|
|
|
|
/**
|
|
* Return whether the submit button of this form was pressed
|
|
*
|
|
* When overwriting Form::addSubmitButton() be sure to overwrite this method as well.
|
|
*
|
|
* @return bool True in case it was pressed, False otherwise or no submit label was set
|
|
*/
|
|
public function isSubmitted()
|
|
{
|
|
if ($this->getSubmitLabel()) {
|
|
return $this->getElement('btn_submit')->isChecked();
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Return whether the data sent by the user refers to this form
|
|
*
|
|
* Ensures that the correct form gets processed in case there are multiple forms
|
|
* with equal submit button names being posted against the same route.
|
|
*
|
|
* @param array $formData The data sent by the user
|
|
*
|
|
* @return bool Whether the given data refers to this form
|
|
*/
|
|
public function wasSent(array $formData)
|
|
{
|
|
return isset($formData[$this->uidElementName]) && $formData[$this->uidElementName] === $this->getName();
|
|
}
|
|
|
|
/**
|
|
* Return whether the given values (possibly incomplete) are valid
|
|
*
|
|
* Unlike Zend_Form::isValid() this will not set NULL as value for
|
|
* an element that is not present in the given data.
|
|
*
|
|
* @param array $formData The data to validate
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function isValidPartial(array $formData)
|
|
{
|
|
$this->create($formData);
|
|
|
|
// Ensure that disabled elements are not overwritten (http://www.zendframework.com/issues/browse/ZF-6909)
|
|
foreach ($this->getElements() as $name => $element) {
|
|
if ($element->getAttrib('disabled')) {
|
|
$formData[$name] = $element->getValue();
|
|
}
|
|
}
|
|
|
|
return parent::isValidPartial($formData);
|
|
}
|
|
|
|
/**
|
|
* Return whether the given values are valid
|
|
*
|
|
* @param array $formData The data to validate
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function isValid($formData)
|
|
{
|
|
$this->create($formData);
|
|
|
|
// Ensure that disabled elements are not overwritten (http://www.zendframework.com/issues/browse/ZF-6909)
|
|
foreach ($this->getElements() as $name => $element) {
|
|
if ($element->getAttrib('disabled')) {
|
|
$formData[$name] = $element->getValue();
|
|
}
|
|
}
|
|
|
|
return parent::isValid($formData);
|
|
}
|
|
|
|
/**
|
|
* Remove all elements of this form
|
|
*
|
|
* @return self
|
|
*/
|
|
public function clearElements()
|
|
{
|
|
$this->created = false;
|
|
return parent::clearElements();
|
|
}
|
|
|
|
/**
|
|
* Load the default decorators
|
|
*
|
|
* Overwrites Zend_Form::loadDefaultDecorators to avoid having
|
|
* the HtmlTag-Decorator added and to provide viewscript usage
|
|
*
|
|
* @return self
|
|
*/
|
|
public function loadDefaultDecorators()
|
|
{
|
|
if ($this->loadDefaultDecoratorsIsDisabled()) {
|
|
return $this;
|
|
}
|
|
|
|
$decorators = $this->getDecorators();
|
|
if (empty($decorators)) {
|
|
if ($this->viewScript) {
|
|
$this->addDecorator('ViewScript', array(
|
|
'viewScript' => $this->viewScript,
|
|
'form' => $this
|
|
));
|
|
} else {
|
|
$this->addDecorator('FormErrors', array('onlyCustomFormErrors' => true))
|
|
->addDecorator('FormElements')
|
|
//->addDecorator('HtmlTag', array('tag' => 'dl', 'class' => 'zend_form'))
|
|
->addDecorator('Form');
|
|
}
|
|
}
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Return the name of this form
|
|
*
|
|
* @return string
|
|
*/
|
|
public function getName()
|
|
{
|
|
$name = parent::getName();
|
|
if (! $name) {
|
|
$name = get_class($this);
|
|
$this->setName($name);
|
|
$name = parent::getName();
|
|
}
|
|
return $name;
|
|
}
|
|
|
|
/**
|
|
* Return the request associated with this form
|
|
*
|
|
* Returns the global request if none has been set for this form yet.
|
|
*
|
|
* @return Request
|
|
*/
|
|
public function getRequest()
|
|
{
|
|
if ($this->request === null) {
|
|
$this->request = Icinga::app()->getFrontController()->getRequest();
|
|
}
|
|
|
|
return $this->request;
|
|
}
|
|
|
|
/**
|
|
* Return the current Response
|
|
*
|
|
* @return Response
|
|
*/
|
|
public function getResponse()
|
|
{
|
|
return Icinga::app()->getFrontController()->getResponse();
|
|
}
|
|
|
|
/**
|
|
* Return the request data based on this form's request method
|
|
*
|
|
* @return array
|
|
*/
|
|
protected function getRequestData()
|
|
{
|
|
if (strtolower($this->request->getMethod()) === $this->getMethod()) {
|
|
return $this->request->{'get' . ($this->request->isPost() ? 'Post' : 'Query')}();
|
|
}
|
|
|
|
return array();
|
|
}
|
|
|
|
/**
|
|
* Get the translation domain for this form
|
|
*
|
|
* The returned translation domain is either determined based on this form's qualified name or it is the default
|
|
* 'icinga' domain
|
|
*
|
|
* @return string
|
|
*/
|
|
protected function getTranslationDomain()
|
|
{
|
|
$parts = explode('\\', get_called_class());
|
|
if ($parts[1] === 'Module') {
|
|
// Assume format Icinga\Module\ModuleName\Forms\...
|
|
return strtolower($parts[2]);
|
|
}
|
|
return 'icinga';
|
|
}
|
|
|
|
/**
|
|
* Translate a string
|
|
*
|
|
* @param string $text The string to translate
|
|
* @param string|null $context Optional parameter for context based translation
|
|
*
|
|
* @return string The translated string
|
|
*/
|
|
protected function translate($text, $context = null)
|
|
{
|
|
return Translator::translate($text, $this->getTranslationDomain(), $context);
|
|
}
|
|
|
|
/**
|
|
* Translate a plural string
|
|
*
|
|
* @param string $textSingular The string in singular form to translate
|
|
* @param string $textPlural The string in plural form to translate
|
|
* @param integer $number The amount to determine from whether to return singular or plural
|
|
* @param string|null $context Optional parameter for context based translation
|
|
*
|
|
* @return string The translated string
|
|
*/
|
|
protected function translatePlural($textSingular, $textPlural, $number, $context = null)
|
|
{
|
|
return Translator::translatePlural(
|
|
$textSingular,
|
|
$textPlural,
|
|
$number,
|
|
$this->getTranslationDomain(),
|
|
$context
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Render this form
|
|
*
|
|
* @param Zend_View_Interface $view The view context to use
|
|
*
|
|
* @return string
|
|
*/
|
|
public function render(Zend_View_Interface $view = null)
|
|
{
|
|
$this->create();
|
|
return parent::render($view);
|
|
}
|
|
|
|
/**
|
|
* Get the authentication manager
|
|
*
|
|
* @return Manager
|
|
*/
|
|
public function Auth()
|
|
{
|
|
if ($this->auth === null) {
|
|
$this->auth = Manager::getInstance();
|
|
}
|
|
return $this->auth;
|
|
}
|
|
|
|
/**
|
|
* Whether the current user has the given permission
|
|
*
|
|
* @param string $permission Name of the permission
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function hasPermission($permission)
|
|
{
|
|
return $this->Auth()->hasPermission($permission);
|
|
}
|
|
|
|
/**
|
|
* Assert that the current user has the given permission
|
|
*
|
|
* @param string $permission Name of the permission
|
|
*
|
|
* @throws SecurityException If the current user lacks the given permission
|
|
*/
|
|
public function assertPermission($permission)
|
|
{
|
|
if (! $this->Auth()->hasPermission($permission)) {
|
|
throw new SecurityException('No permission for %s', $permission);
|
|
}
|
|
}
|
|
}
|