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request_manager.php
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Wed, Feb 26, 11:04 AM

request_manager.php
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<?php
/**
* @version $Id: request_manager.php 14628 2011-10-04 09:36:30Z alex $
* @package In-Portal
* @copyright Copyright (C) 1997 - 2010 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 kRequestManager extends kBase {
/**
* Processes request
*
* @access public
*/
public function ProcessRequest()
{
$this->processOpener();
$events = $this->getEvents();
$all_passed = $this->getAllPassed($events);
// set "all_passed" before kApplication::GetTopmostPrefix method call !
$this->Application->SetVar('all_passed', implode(',', $all_passed));
foreach ($events as $prefix_special => $event_name) {
$event =& $this->runEvent($prefix_special, $event_name);
if ( $event->status == kEvent::erSTOP ) {
// event requested to stop processing at this point
kUtil::safeDefine('DBG_SKIP_REPORTING', 1);
$this->Application->Session->SaveData();
exit;
}
if ( $event->status == kEvent::erPERM_FAIL ) {
$this->processPermissionError($event);
}
if ( ($event->status == kEvent::erSUCCESS || $event->status == kEvent::erPERM_FAIL) && $this->canRedirect($event) ) {
$this->performRedirect($event);
}
}
$this->Application->SetVar('events', $events);
$this->Application->SetVar('passed', implode(',', $all_passed));
}
/**
* Returns event names, given in request (post, get)
*
* @return Array
* @access protected
*/
protected function getEvents()
{
$post_events = $this->getEventsFromPost();
return $post_events ? $post_events : $this->getEventsFromGet();
}
/**
* Get all passed prefixes
*
* @param Array $events
* @return Array
* @access protected
*/
protected function getAllPassed($events)
{
$ret = explode(',', $this->Application->GetVar('passed'));
foreach ($events as $prefix_special => $event_name) {
if (!$event_name) {
continue;
}
if ($this->Application->isAdmin) {
array_push($ret, $prefix_special);
}
else {
// don't add special on Front-end because of category item list special is autogenerated
$prefix_special = explode('.', $prefix_special);
array_push($ret, $prefix_special[0]);
}
}
return $ret;
}
/**
* Creates and runs event. Returns false, when prefix of given event isn't registered
*
* @param string $prefix_special
* @param string $event_name
*
* @return kEvent|false
* @access protected
*/
protected function &runEvent($prefix_special, $event_name)
{
$event = new kEvent($prefix_special . ':' . $event_name);
if ( preg_match('/(.*?)-(.*)/', $event->Prefix, $regs) && $this->Application->prefixRegistred($regs[1]) ) {
// this is event from cloned config -> load parent config to create valid clone
$this->Application->UnitConfigReader->loadConfig($regs[1]);
$this->Application->UnitConfigReader->runAfterConfigRead($regs[1]);
}
if ( !$this->Application->EventManager->verifyEventPrefix($event, true) ) {
$false = false;
return $false;
}
$event->setEventParam('top_prefix', $this->Application->GetTopmostPrefix($event->Prefix, true));
$event_handler =& $this->Application->recallObject($event->Prefix . '_EventHandler');
/* @var $event_handler kEventHandler */
if ( ($this->Application->RecallVar('user_id') == USER_ROOT) || $event_handler->CheckPermission($event) ) {
$this->Application->HandleEvent($event);
}
return $event;
}
/**
* Processes case, when event finished with permission error
*
* @param kEvent $event
* @access protected
*/
protected function processPermissionError(&$event)
{
// should do redirect but to no_permissions template
$event->redirect = $this->Application->isAdmin ? 'no_permission' : $this->Application->ConfigValue('NoPermissionTemplate');
$event->SetRedirectParam('pass', 'm');
$themes_helper =& $this->Application->recallObject('ThemesHelper');
/* @var $themes_helper kThemesHelper */
$event->SetRedirectParam( 'm_cat_id', $themes_helper->getPageByTemplate($event->redirect) );
// restore stuff, that processOpener() changed
$wid = $this->Application->GetVar('m_wid');
$this->Application->RestoreVar( rtrim('opener_stack_' . $wid, '_') );
// don't save last_template, because no_permission template does js history.back and could cause invalid opener_stack content
$this->Application->SetVar('skip_last_template', 1);
}
/**
* Performs redirect after event execution
*
* @param kEvent $event
* @access protected
*/
protected function performRedirect(&$event)
{
// we need to pass category if the action was submitted to self-template, with the category passed
// and it has not explicly set redirect template or pass_cateogry param
if ( $this->samePageRedirect($event) && ($event->getEventParam('pass_category') === false) && $this->Application->GetVar('m_cat_id') ) {
$event->SetRedirectParam('pass_category', 1);
}
$wid = $this->Application->GetVar('m_wid');
if ($wid && $event->getRedirectParam('opener') == 'u') {
$event->SetRedirectParam('opener', 's'); // because Application->HREF will react differently when 'opener' = 'u'
$event->redirect = defined('CLOSE_POPUP_TPL') ? CLOSE_POPUP_TPL : 'incs/close_popup';
}
$this->Application->Redirect($event->redirect, $event->getRedirectParams(), '', $event->redirectScript);
}
/**
* Checks, if redirect can be made
*
* @param kEvent $event
* @return bool
* @access protected
*/
protected function canRedirect(&$event)
{
return $this->samePageRedirect($event) || strlen($event->redirect) > 0;
}
/**
* Checks, that current template will be displayed after redirect
*
* @param kEvent $event
* @return bool
* @access protected
*/
protected function samePageRedirect(&$event)
{
return $event->redirect === true || $event->redirect == $this->Application->GetVar('t');
}
/**
* Returns event names given in GET
*
* @return Array
* @access protected
*/
protected function getEventsFromGet()
{
$events = Array ();
$discovered_units = $this->Application->HttpQuery->getDiscoveredUnits(false);
foreach ($discovered_units as $prefix_special => $query_string) {
$query_string = array_flip($query_string);
if ( !isset($query_string['event']) ) {
continue;
}
$event_name = $this->Application->GetVar($prefix_special . '_event');
// we need to check for pre 5.1.0 url format, because of "PerPage"
// query string part (that was added in place of "event" query
// string part) is available only since 5.1.0 version
if ($event_name && !is_numeric($event_name)) {
$events[$prefix_special] = $event_name;
}
}
return $events;
}
/**
* Returns event names given in POST
*
* @return Array
* @access protected
*/
protected function getEventsFromPost()
{
$ret = Array ();
$events = $this->Application->GetVar('events');
if (!$events) {
return Array ();
}
foreach ($events as $prefix_special => $event_name) {
if (!$event_name) {
continue;
}
if ( is_array($event_name) ) {
// HTML-input names like "events[prefix.special][event_name]", input value don't matter
$event_name = key($event_name);
$this->Application->SetVar($prefix_special . '_event', $event_name);
}
// HTML-input names like "events[prefix.special]", input value is event name
$ret[$prefix_special] = $event_name;
}
return $ret;
}
/**
* Processes window opener stack
*
* @access protected
*/
protected function processOpener()
{
$wid = $this->Application->GetVar('m_wid');
$opener_action = $this->Application->GetVar('m_opener');
$opener_stack = $this->Application->RecallVar(rtrim('opener_stack_'.$wid, '_'));
$opener_stack = $opener_stack ? unserialize($opener_stack) : Array();
switch ($opener_action) {
case 'r':
// "reset" opener stack
$opener_stack = Array ();
break;
case 'd':
// "down/push" new template to opener stack, deeplevel++
if ( $this->Application->GetVar('front') ) {
$front_session =& $this->Application->recallObject('Session.front');
/* @var $front_session Session */
array_push( $opener_stack, '../' . $front_session->RecallVar('last_template') );
}
else {
array_push( $opener_stack, $this->Application->RecallVar('last_template') );
}
break;
case 'u':
// "up/pop" last template from opener stack, deeplevel--
array_pop($opener_stack);
break;
case 'p':
// pop-up - generate new wid
$parent_wid = $this->Application->GetVar('m_wid'); // window_id of popup's parent window
$popup_wid = (int)$this->Application->RecallVar('last_wid') + 1;
$this->Application->StoreVar('last_wid', $popup_wid);
$this->Application->SetVar('m_wid', $popup_wid);
if ( $this->Application->GetVar('front') ) {
$front_session =& $this->Application->recallObject('Session.front');
/* @var $front_session Session */
$last_template = '../' . $front_session->RecallVar( rtrim('last_template_popup_' . $parent_wid, '_') );
}
else {
if ( $this->Application->GetVar('merge_opener_stack') ) {
// get last template from parent (that was closed) window opener stack
$parent_opener_stack_name = rtrim('opener_stack_' . $parent_wid, '_');
$parent_opener_stack = unserialize( $this->Application->RecallVar($parent_opener_stack_name) );
$last_template = array_pop($parent_opener_stack);
if ($parent_opener_stack) {
$this->Application->StoreVar( $parent_opener_stack_name, serialize($parent_opener_stack) );
}
else {
$this->Application->RemoveVar( $parent_opener_stack_name );
}
}
else {
$last_template = $this->Application->RecallVar( rtrim('last_template_popup_' . $parent_wid, '_') );
}
}
$opener_stack = Array ($last_template);
$this->Application->SetVar('m_opener', 's');
$wid = $popup_wid;
/*// store window relations
$window_relations = $this->Application->RecallVar('window_relations');
$window_relations = $window_relations ? unserialize($window_relations) : Array ();
$window_relations[$popup_wid] = $parent_wid;
$this->Application->StoreVar('window_relations', serialize($window_relations));*/
break;
default:
// "s/0," stay on same deep level
break;
}
$this->Application->SetVar('m_opener', 's');
$this->Application->StoreVar(rtrim('opener_stack_' . $wid, '_'), serialize($opener_stack), !$opener_stack); // empty stack is optional
}
/**
* Allows to add new element to opener stack
*
* @param string $template
* @param Array $params
* @param string $pass
* @access public
*/
public function openerStackPush($template, $params, $pass = 'all', $wid = null)
{
if (!isset($wid)) {
$wid = $this->Application->GetVar('m_wid');
}
/*// get parent window wid, when this was popup
$window_relations = $this->Application->RecallVar('window_relations');
$window_relations = $window_relations ? unserialize($window_relations) : Array ();
$wid = array_key_exists($wid, $window_relations) ? $window_relations[$wid] : false;*/
// get opener stack
$stack_name = rtrim('opener_stack_' . $wid, '_');
$opener_stack = $this->Application->RecallVar($stack_name);
$opener_stack = $opener_stack ? unserialize($opener_stack) : Array ();
// change opener stack
$default_params = Array ('m_opener' => 'u', '__URLENCODE__' => 1);
if (!$this->Application->ConfigValue('UsePopups') && $wid) {
// remove wid to show combined header block in editing window
$default_params['m_wid'] = '';
// move last popup's opener stack elemenent to main window's opener stack
if ($opener_stack) {
list ($index_file, $env) = explode('|', $opener_stack[ count($opener_stack) - 1 ], 2);
$main_params = $this->Application->HttpQuery->processQueryString($env, 'pass');
$main_template = $main_params['t'];
unset($main_params['t']);
$main_params = array_merge($main_params, $default_params);
$this->openerStackPush($main_template, $main_params, $main_params['pass'], '');
}
}
$redirect_params = array_merge($default_params, $params);
$new_level = $this->Application->BuildEnv($template, $redirect_params, $pass, true);
array_push($opener_stack, 'index.php|' . ltrim($new_level, ENV_VAR_NAME . '=') );
$this->Application->StoreVar($stack_name, serialize($opener_stack));
}
/**
* Allows to change last element in opener stack
*
* @param string $template
* @param Array $params
* @param string $pass
* @access public
*/
public function openerStackChange($params = Array(), $pass_events = true, $wid = null)
{
if (!isset($wid)) {
$wid = $this->Application->GetVar('m_wid');
}
// get opener stack
$stack_name = rtrim('opener_stack_' . $wid, '_');
$opener_stack = $this->Application->RecallVar($stack_name);
$opener_stack = $opener_stack ? unserialize($opener_stack) : Array ();
// change opener stack
list ($index_file, $env) = explode('|', $opener_stack[ count($opener_stack) - 1 ], 2);
$vars = $this->Application->HttpQuery->processQueryString($env, 'pass');
$vars = array_merge($vars, $params);
// save opener stack
$new_level = $this->Application->BuildEnv($vars['t'], $vars, $vars['pass'], $pass_events, false);
$opener_stack[ count($opener_stack) - 1 ] = $index_file . '|' . $new_level;
$this->Application->StoreVar($stack_name, serialize($opener_stack));
}
}

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