form_submissions_eh.php
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Created: Sat, Aug 23, 11:49 PM

form_submissions_eh.php
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	<?php
	/**
	* @version $Id: form_submissions_eh.php 15569 2012-10-10 13:29:39Z alex $
	* @package In-Portal
	* @copyright Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
	* @license GNU/GPL
	* In-Portal is Open Source software.
	* This means that this software may have been modified pursuant
	* the GNU General Public License, and as distributed it includes
	* or is derivative of works licensed under the GNU General Public License
	* or other free or open source software licenses.
	* See http://www.in-portal.org/license for copyright notices and details.
	*/

	defined('FULL_PATH') or die('restricted access!');

	class FormSubmissionsEventHandler extends kDBEventHandler {

	/**
	* Checks user permission to execute given $event
	*
	* @param kEvent $event
	* @return bool
	* @access public
	*/
	public function CheckPermission(kEvent $event)
	{
	if ( !$this->Application->isAdmin ) {
	if ( $event->Name == 'OnCreate' ) {
	// anybody can submit forms on front
	return true;
	}
	}

	$section = $event->getSection();
	$form_id = $this->Application->GetVar('form_id');

	$event->setEventParam('PermSection', $section . ':' . $form_id);

	return parent::CheckPermission($event);
	}

	/**
	* Always allow to view feedback form
	*
	* @return void
	* @access protected
	* @see kEventHandler::$permMapping
	*/
	protected function mapPermissions()
	{
	parent::mapPermissions();

	$permissions = Array (
	'OnItemBuild' => Array ('self' => true),
	'OnEdit' => Array ('self' => 'view', 'subitem' => 'view'),
	);

	$this->permMapping = array_merge($this->permMapping, $permissions);
	}

	/**
	* Returns filter block based on field element type
	*
	* @param string $element_type
	* @return string
	*/
	function _getFilterBlock($element_type)
	{
	$mapping = Array (
	'text' => 'grid_like_filter',
	'select' => 'grid_options_filter',
	'radio' => 'grid_options_filter',
	'checkbox' => 'grid_options_filter',
	'password' => 'grid_like_filter',
	'textarea' => 'grid_like_filter',
	'label' => 'grid_like_filter',
	'upload' => 'grid_empty_filter',
	);

	return $mapping[$element_type];
	}

	function OnBuildFormFields($event)
	{
	$form_id = $this->Application->GetVar('form_id');
	if (!$form_id) return ;

	$conf_fields = $this->Application->getUnitOption($event->Prefix, 'Fields');
	$conf_grids = $this->Application->getUnitOption($event->Prefix, 'Grids');

	$helper = $this->Application->recallObject('InpCustomFieldsHelper');
	/* @var $helper InpCustomFieldsHelper */

	$sql = 'SELECT *
	FROM ' . TABLE_PREFIX . 'FormFields
	WHERE FormId = ' . (int)$form_id . '
	ORDER BY Priority DESC';
	$fields = $this->Conn->Query($sql, 'FormFieldId');

	$use_options = Array ('radio', 'select', 'checkbox');
	$check_visibility = $this->Application->LoggedIn() && !$this->Application->isAdminUser;

	foreach ($fields as $field_id => $options) {
	$field_visible = $check_visibility ? $options['Visibility'] == SubmissionFormField::VISIBILITY_EVERYONE : true;
	$field_options = Array('type' => 'string', 'default' => $options['DefaultValue']);

	if ($options['Required'] && $field_visible) {
	$field_options['required'] = 1;
	}

	if ($options['Validation'] == 1) {
	$field_options['formatter'] = 'kFormatter';
	$field_options['regexp'] = '/^(' . REGEX_EMAIL_USER . '@' . REGEX_EMAIL_DOMAIN . ')$/i';
	}

	if ($options['DisplayInGrid']) {
	$title = $options['Prompt'];

	if (substr($title, 0, 1) == '+') {
	$this->Application->Phrases->AddCachedPhrase('form_col_title' . $field_id, substr($title, 1));
	$title = 'form_col_title' . $field_id;
	}

	$conf_grids['Default']['Fields']['fld_' . $field_id] = Array (
	'title' => $title, 'no_special' => 1, 'nl2br' => 1, 'first_chars' => 200,
	'filter_block' => $this->_getFilterBlock($options['ElementType'])
	);

	if ($options['ElementType'] == 'upload') {
	$conf_grids['Default']['Fields']['fld_' . $field_id]['data_block'] = 'grid_upload_td';
	}

	if ($options['Validation'] == 1) {
	$conf_grids['Default']['Fields']['fld_' . $field_id]['data_block'] = 'grid_email_td';
	}
	}

	if ($options['ElementType'] == 'checkbox' && !$options['ValueList']) {
	// fix case, when user haven't defined any options for checkbox
	$options['ValueList'] = '1=la_Yes\|\|0=la_No';
	}

	if (in_array($options['ElementType'], $use_options) && $options['ValueList']) {
	// field type can have options and user have defined them too
	$field_options['options'] = $helper->GetValuesHash( $options['ValueList'] );
	$field_options['formatter'] = 'kOptionsFormatter';
	}

	if ($options['ElementType'] == 'password') {
	$field_options['formatter'] = 'kPasswordFormatter';
	$field_options['encryption_method'] = 'plain';
	$field_options['verify_field'] = 'fld_' . $field_id . '_verify';
	}

	if ($options['ElementType'] == 'upload') {
	$field_options['formatter'] = 'kUploadFormatter';
	$field_options['upload_dir'] = WRITEBALE_BASE . DIRECTORY_SEPARATOR . 'user_files' . DIRECTORY_SEPARATOR . 'form_submissions';

	if ( $options['UploadMaxSize'] ) {
	$field_options['max_size'] = $options['UploadMaxSize'] * 1024; // convert Kbytes to bytes
	}

	if ( $options['UploadExtensions'] ) {
	$field_options['file_types'] = '.' . implode(';.', explode(',', $options['UploadExtensions']));
	}
	}

	$conf_fields['fld_' . $field_id] = $field_options;
	}

	$this->Application->setUnitOption($event->Prefix, 'Fields', $conf_fields);
	$this->Application->setUnitOption($event->Prefix, 'Grids', $conf_grids);
	}

	/**
	* Apply any custom changes to list's sql query
	*
	* @param kEvent $event
	* @return void
	* @access protected
	* @see kDBEventHandler::OnListBuild()
	*/
	protected function SetCustomQuery(kEvent $event)
	{
	parent::SetCustomQuery($event);

	$object = $event->getObject();
	/* @var $object kDBList */

	$object->addFilter('form_filter', '%1$s.FormId = ' . (int)$this->Application->GetVar('form_id'));
	}

	/**
	* Allows user to see it's last feedback form data
	*
	* @param kEvent $event
	* @return int
	* @access public
	*/
	public function getPassedID(kEvent $event)
	{
	if ( $event->Special == 'last' ) {
	// allow user to see his last submitted form
	return $this->Application->RecallVar('last_submission_id');
	}

	if ( $this->Application->isAdminUser ) {
	// don't check ids in admin
	return parent::getPassedID($event);
	}

	// no way to see other user's form submission by giving it's ID directly in url
	return 0;
	}

	/**
	* Creates new form submission from Front-End
	*
	* @param kEvent $event
	* @return void
	* @access protected
	*/
	protected function OnCreate(kEvent $event)
	{
	parent::OnCreate($event);

	if ( $event->status != kEvent::erSUCCESS ) {
	return;
	}

	$object = $event->getObject();
	/* @var $object kDBItem */

	// allows user to view only it's last submission
	$this->Application->StoreVar('last_submission_id', $object->GetID());

	$form_submission_helper = $this->Application->recallObject('FormSubmissionHelper');
	/* @var $form_submission_helper FormSubmissionHelper */

	$form =& $form_submission_helper->getForm($object);

	$notify_email = $form->GetDBField('SubmitNotifyEmail');

	if ( $notify_email ) {
	$send_params = Array (
	'to_name' => $notify_email,
	'to_email' => $notify_email,
	);

	$this->Application->EmailEventAdmin('FORM.SUBMITTED', null, $send_params);
	}
	else {
	$this->Application->EmailEventAdmin('FORM.SUBMITTED');
	}

	// $this->Application->EmailEventUser('FORM.SUBMITTED', null, 'to_email' => '');

	$event->SetRedirectParam('opener', 's');
	$event->SetRedirectParam('m_cat_id', 0);

	$theme = $this->Application->recallObject('theme.current');
	/* @var $theme kDBItem */

	$template = htmlspecialchars_decode($this->Application->GetVar('success_template')); // kHTTPQuery do htmlspecialchars on everything
	$alias_template = $theme->GetField('TemplateAliases', $template);

	$event->redirect = $alias_template ? $alias_template : $template;
	}

	/**
	* Processes Captcha code
	*
	* @param kEvent $event
	* @return void
	* @access protected
	*/
	protected function OnBeforeItemCreate(kEvent $event)
	{
	parent::OnBeforeItemCreate($event);

	$object = $event->getObject();
	/* @var $object kDBItem */

	$object->SetDBField('IPAddress', $this->Application->getClientIp());

	if ( !$object->GetDBField('ReferrerURL') ) {
	$referrer = $this->Application->GetVar('original_referrer');

	if ( !$referrer ) {
	$base_url = preg_quote($this->Application->BaseURL(), '/');
	$referrer = preg_replace('/^' . $base_url . '/', '/', $_SERVER['HTTP_REFERER'], 1);
	}

	$object->SetDBField('ReferrerURL', $referrer);
	}

	$form_submission_helper = $this->Application->recallObject('FormSubmissionHelper');
	/* @var $form_submission_helper FormSubmissionHelper */

	$form =& $form_submission_helper->getForm($object);

	// validate captcha code
	if ( $form->GetDBField('UseSecurityImage') && !$this->Application->LoggedIn() ) {
	$captcha_helper = $this->Application->recallObject('CaptchaHelper');
	/* @var $captcha_helper kCaptchaHelper */

	$captcha_helper->validateCode($event, false);
	}
	}

	/**
	* Checks, that target submission was selected for merging
	*
	* @param kEvent $event
	* @return void
	* @access protected
	*/
	protected function OnBeforeItemUpdate(kEvent $event)
	{
	parent::OnBeforeItemUpdate($event);

	$object = $event->getObject();
	/* @var $object kDBItem */

	$object->setRequired('MergeToSubmission', $object->GetDBField('IsMergeToSubmission'));
	}

	/**
	* Passes form_id, when using "Prev"/"Next" toolbar buttons
	*
	* @param kEvent $event
	* @return void
	* @access protected
	*/
	protected function OnPreSaveAndGo(kEvent $event)
	{
	parent::OnPreSaveAndGo($event);

	if ( $event->status == kEvent::erSUCCESS ) {
	$event->SetRedirectParam('pass', 'm,form,formsubs');
	}
	}

	/**
	* Saves edited item in temp table and goes
	* to passed tabs, by redirecting to it with OnPreSave event
	*
	* @param kEvent $event
	* @return void
	* @access protected
	*/
	protected function OnPreSaveAndGoToTab(kEvent $event)
	{
	parent::OnPreSaveAndGoToTab($event);

	if ( $event->status == kEvent::erSUCCESS ) {
	$event->SetRedirectParam('pass', 'm,form,formsubs');
	}
	}

	/**
	* Set's new per-page for grid
	*
	* @param kEvent $event
	* @return void
	* @access protected
	*/
	protected function OnSetPerPage(kEvent $event)
	{
	parent::OnSetPerPage($event);

	$event->SetRedirectParam('pass', 'm,form,' . $event->getPrefixSpecial());
	}

	/**
	* Occurs when page is changed (only for hooking)
	*
	* @param kEvent $event
	* @return void
	* @access protected
	*/
	protected function OnSetPage(kEvent $event)
	{
	parent::OnSetPage($event);

	$event->SetRedirectParam('pass', 'm,form,' . $event->getPrefixSpecial());
	}

	/**
	* Fills merge-to dropdown
	*
	* @param kEvent $event
	* @return void
	* @access protected
	*/
	protected function OnAfterItemLoad(kEvent $event)
	{
	parent::OnAfterItemLoad($event);

	if ($event->Special == 'merge-to') {
	return ;
	}

	$object = $event->getObject();
	/* @var $object kDBItem */

	$form_id = $object->GetDBField('FormId');
	$email_field = $this->getFieldByRole($form_id, SubmissionFormField::COMMUNICATION_ROLE_EMAIL);

	if (!$email_field) {
	return ;
	}

	$merge_to = $this->Application->recallObject($event->Prefix . '.merge-to', null, Array ('skip_autoload' => true));
	/* @var $merge_to kDBItem */

	$sql = $merge_to->GetSelectSQL() . ' WHERE (FormId = ' . $form_id . ') AND (' . $email_field . ' = ' . $this->Conn->qstr( $object->GetDBField($email_field) ) . ')';
	$submissions = $this->Conn->Query($sql, $object->IDField);

	// remove this submission
	unset($submissions[ $object->GetID() ]);

	if (!$submissions) {
	return ;
	}

	$options = Array ();

	$name_field = $this->getFieldByRole($form_id, SubmissionFormField::COMMUNICATION_ROLE_NAME);
	$subject_field = $this->getFieldByRole($form_id, SubmissionFormField::COMMUNICATION_ROLE_SUBJECT);

	$language = $this->Application->recallObject('lang.current');
	/* @var $language kDBItem */

	$date_format = $language->GetDBField('DateFormat');

	foreach ($submissions as $submission_id => $submission_data) {
	$option_title = ''; // SenderName (email@address.com) - Subject (06/29/2010)
	$merge_to->LoadFromHash($submission_data);

	if ($name_field) {
	$option_title = $merge_to->GetDBField($name_field) . ' (' . $merge_to->GetDBField($email_field) . ') - ';
	}
	else {
	$option_title = $merge_to->GetDBField($email_field) . ' - ';
	}

	if ($subject_field) {
	$option_title .= $merge_to->GetField($subject_field) . ' (' . $merge_to->GetField('SubmissionTime', $date_format) . ')';
	}
	else {
	$option_title .= $merge_to->GetField('SubmissionTime', $date_format);
	}

	$options[$submission_id] = $option_title;
	}

	$object->SetFieldOption('MergeToSubmission', 'options', $options);
	}

	/**
	* Returns submission field name based on given role
	*
	* @param int $form_id
	* @param string $role
	* @return string
	*/
	function getFieldByRole($form_id, $role)
	{
	static $cache = Array ();

	if (!array_key_exists($form_id, $cache)) {
	$id_field = $this->Application->getUnitOption('formflds', 'IDField');
	$table_name = $this->Application->getUnitOption('formflds', 'TableName');

	$sql = 'SELECT ' . $id_field . ', EmailCommunicationRole
	FROM ' . $table_name . '
	WHERE FormId = ' . $form_id . ' AND EmailCommunicationRole <> 0';
	$cache[$form_id] = $this->Conn->GetCol($sql, 'EmailCommunicationRole');
	}

	// get field name by role
	return array_key_exists($role, $cache[$form_id]) ? 'fld_' . $cache[$form_id][$role] : false;
	}

	/**
	* Performs submission merge
	*
	* @param kEvent $event
	* @return void
	* @access protected
	*/
	protected function OnUpdate(kEvent $event)
	{
	parent::OnUpdate($event);

	if ($event->status == kEvent::erSUCCESS) {
	$object = $event->getObject();
	/* @var $object kDBItem */

	$merge_to = $object->GetDBField('MergeToSubmission');

	if (!$merge_to) {
	return ;
	}

	$form_id = $object->GetDBField('FormId');

	$sql = 'SELECT *
	FROM ' . TABLE_PREFIX . 'Forms
	WHERE FormId = ' . $form_id;
	$form_info = $this->Conn->GetRow($sql);

	$reply = $this->Application->recallObject('submission-log.merge', null, Array ('skip_autoload' => true));
	/* @var $reply kDBItem */

	$email_field = $this->getFieldByRole($form_id, SubmissionFormField::COMMUNICATION_ROLE_EMAIL);
	$subject_field = $this->getFieldByRole($form_id, SubmissionFormField::COMMUNICATION_ROLE_SUBJECT);
	$body_field = $this->getFieldByRole($form_id, SubmissionFormField::COMMUNICATION_ROLE_BODY);

	$reply->SetDBField('FormSubmissionId', $merge_to);

	if ($email_field) {
	$reply->SetDBField('FromEmail', $object->GetDBField($email_field));
	}

	$reply->SetDBField('ToEmail', $form_info['ReplyFromEmail']);

	if ($subject_field) {
	$reply->SetDBField('Subject', $object->GetDBField($subject_field));
	}

	if ($body_field) {
	$reply->SetDBField('Message', $object->GetDBField($body_field));
	}

	$reply->SetDBField('SentOn_date', $object->GetDBField('SubmissionTime'));
	$reply->SetDBField('SentOn_time', $object->GetDBField('SubmissionTime'));
	$reply->SetDBField('MessageId', $object->GetDBField('MessageId'));
	$reply->SetDBField('SentStatus', SUBMISSION_LOG_SENT);

	// as if emails was really received via mailbox
	$this->Application->SetVar('client_mode', 1);

	if ($reply->Create()) {
	// delete submission, since it was merged
	$object->Delete();
	}
	}
	}
	}

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