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links_event_handler.php
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Tue, Sep 23, 5:26 AM

links_event_handler.php
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<?php
/**
* @version $Id: links_event_handler.php 15606 2012-11-06 17:14:42Z alex $
* @package In-Link
* @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 LinksEventHandler extends kCatDBEventHandler {
/**
* Allows to override standard permission mapping
*
* @return void
* @access protected
* @see kEventHandler::$permMapping
*/
protected function mapPermissions()
{
parent::mapPermissions();
$permissions = Array (
'OnContactFormSubmit' => Array ('self' => true),
'OnProcessReciprocalLinks' => Array ('self' => true),
'OnSetGrouping' => Array ('self' => 'view'),
'OnStoreSelected' => Array ('self' => 'view'),
'OnMerge' => Array ('self' => 'edit'),
);
$this->permMapping = array_merge($this->permMapping, $permissions);
}
/**
* 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 $object kDBList */
if ( !$this->Application->isAdminUser ) {
$object->addFilter('expire_filter', '(Expire > ' . adodb_mktime() . ' OR Expire IS NULL)');
}
if ( substr($event->Special, 0, 10) == 'duplicates' ) {
$object->removeFilter('category_filter');
$link_helper = $this->Application->recallObject('LinkHelper');
/* @var $link_helper LinkHelper */
$grouping = $link_helper->getGrouping($event->getPrefixSpecial());
switch ($event->Special) {
case 'duplicates':
foreach ($grouping as $group_field) {
$object->AddGroupByField($object->TableName . '.' . $group_field);
}
$object->addFilter('has_dupes_filter', 'DupeCount > 1', kDBList::AGGREGATE_FILTER);
break;
case 'duplicates-sub':
$main_object = $this->Application->recallObject($event->Prefix . '.duplicates');
/* @var $main_object kDBItem */
foreach ($grouping as $field_index => $group_field) {
$object->addFilter('dupe_filter_' . $field_index, '%1$s.`' . $group_field . '` = ' . $this->Conn->qstr($main_object->GetDBField($group_field)));
}
break;
}
$object->addFilter('primary_filter', TABLE_PREFIX . 'CategoryItems.PrimaryCat = 1');
}
}
/**
* Set groping fields for link duplicate checker
*
* @param kEvent $event
*/
function OnSetGrouping($event)
{
$this->Application->LinkVar($event->getPrefixSpecial(true).'_dupe_fields', $event->getPrefixSpecial().'_dupe_fields');
}
/**
* Merge duplicate links together (only categories) & delete duplicates
*
* @param kEvent $event
*/
function OnMerge($event)
{
$link_helper = $this->Application->recallObject('LinkHelper');
/* @var $link_helper LinkHelper */
$grouping = $link_helper->getGrouping($event->getPrefixSpecial());
$ids = $this->StoreSelectedIDs($event);
if ( !$ids ) {
return;
}
// check, that user has not selected multiple links from same group
$primary_links = Array ();
$id_field = $this->Application->getUnitOption($event->Prefix, 'IDField');
$table_name = $this->Application->getUnitOption($event->Prefix, 'TableName');
$sql = 'SELECT *
FROM ' . $table_name . '
WHERE ' . $id_field . ' IN (' . implode(',', $ids) . ')';
$links = $this->Conn->Query($sql, $id_field);
$groping_error = false;
foreach ($links as $link_data) {
$group_key = '';
foreach ($grouping as $grouping_field) {
$group_key .= 'main_table.`' . $grouping_field . '` = ' . $this->Conn->qstr($link_data[$grouping_field]) . ' AND ';
}
$group_key = substr($group_key, 0, -5);
if ( isset($primary_links[$group_key]) ) {
$groping_error = true;
break;
}
else {
$primary_links[$group_key] = $link_data['ResourceId'];
}
}
if ( !$groping_error ) {
$temp_handler = $this->Application->recallObject($event->getPrefixSpecial() . '_TempHandler', 'kTempTablesHandler');
/* @var $temp_handler kTempTablesHandler */
$categories_sql = ' SELECT main_table.ResourceId, ci.CategoryId, main_table.' . $id_field . '
FROM ' . $table_name . ' main_table
LEFT JOIN ' . TABLE_PREFIX . 'CategoryItems ci ON main_table.ResourceId = ci.ItemResourceId
WHERE %s';
foreach ($primary_links as $group_key => $primary_resource_id) {
$categories = Array ();
$group_links = Array ();
$group_categories = $this->Conn->Query(sprintf($categories_sql, $group_key));
foreach ($group_categories as $category_data) {
$group_links[$category_data['ResourceId']] = $category_data[$id_field];
$categories[$category_data['ResourceId'] == $primary_resource_id ? 'remove' : 'add'][] = $category_data['CategoryId'];
}
unset($group_links[$primary_resource_id]);
$categories = array_unique(array_diff($categories['add'], $categories['remove']));
if ( $categories ) {
// add link to other link categories
$values_sql = '';
foreach ($categories as $category_id) {
$values_sql .= '(' . $category_id . ',' . $primary_resource_id . ',0),';
}
$values_sql = substr($values_sql, 0, -1);
$insert_sql = 'INSERT INTO ' . TABLE_PREFIX . 'CategoryItems (CategoryId,ItemResourceId,PrimaryCat) VALUES ' . $values_sql;
$this->Conn->Query($insert_sql);
}
// delete all links from group except primary
$temp_handler->DeleteItems($event->Prefix, $event->Special, array_values($group_links));
}
}
else {
$event->status = kEvent::erFAIL;
$event->redirect = false;
$this->Application->SetVar($event->getPrefixSpecial().'_error', 1);
}
}
/**
* Stores ids, that were selected in duplicate checker
*
* @param kEvent $event
* @return void
* @access protected
*/
protected function OnStoreSelected(kEvent $event)
{
$this->StoreSelectedIDs($event);
$event->SetRedirectParam('pass', 'm,' . $event->getPrefixSpecial());
}
/**
* Allows to enhance link after creation
*
* @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 */
// replace 0 id in post with actual created id (used in enhancement process)
$items_info = $this->Application->GetVar($event->getPrefixSpecial(true));
kUtil::array_rename_key($items_info, 0, $object->GetID());
$this->Application->SetVar($event->getPrefixSpecial(true), $items_info);
// listing was created -> enhance it right away
$enhancement_event = new kEvent('ls:OnRequestEnhancement');
$this->Application->HandleEvent($enhancement_event);
if ( ($enhancement_event->status == kEvent::erSUCCESS) && strlen($enhancement_event->redirect) ) {
$event->SetRedirectParam('next_template', $event->redirect);
$event->redirect = $enhancement_event->redirect;
}
}
/**
* Adds free listing option to listing type selection
*
* @param kEvent $event
* @return void
* @access protected
*/
protected function OnAfterConfigRead(kEvent $event)
{
parent::OnAfterConfigRead($event);
if (defined('IS_INSTALL') && IS_INSTALL) {
return ;
}
$free_listings = $this->Application->ConfigValue('Link_AllowFreeListings');
$virtual_fields = $this->Application->getUnitOption($event->Prefix, 'VirtualFields');
$virtual_fields['ListingTypeId']['options'] = $free_listings ? Array (0 => 'lu_free_listing') : Array ();
$language_id = $this->Application->GetVar('m_lang');
$duplicate_options = array_flip($virtual_fields['DuplicateCheckFields']['options']);
$duplicate_options['NAME'] = 'l' . $language_id . '_Name';
$virtual_fields['DuplicateCheckFields']['options'] = array_flip($duplicate_options);
$default = $virtual_fields['DuplicateCheckFields']['default'];
$virtual_fields['DuplicateCheckFields']['default'] = str_replace('|Name|', '|l' . $language_id . '_Name|', $default);
$this->Application->setUnitOption($event->Prefix, 'VirtualFields', $virtual_fields);
if (!$this->Application->isAdminUser) {
// for now only on Front-End
$this->Application->setUnitOption($event->Prefix, 'PopulateMlFields', true);
}
}
/**
* contact us form submitted on link details page
*
* @param kEvent $event
*/
function OnContactFormSubmit($event)
{
$fields = Array (
'ContactFormFullName', 'ContactFormEmail', 'ContactFormSubject', 'ContactFormBody', 'ContactFormCaptcha'
);
// reset errors var
$this->Application->SetVar('ContactForm_HasErrors', '');
// 1. validate form fields
$required_fields = $this->Application->GetVar('FormRequiredFields');
foreach ($fields as $field_name) {
$field_value = trim($this->Application->GetVar($field_name));
if (in_array($field_name, $required_fields)) {
// custom captcha validation
if ($field_name == 'ContactFormCaptcha') {
if (!strlen($field_value) || ($field_value != $this->Application->RecallVar($event->Prefix . '_captcha_code'))) {
$this->Application->SetVar('error_'.$field_name, 1);
$captcha_helper = $this->Application->recallObject('CaptchaHelper');
/* @var $captcha_helper kCaptchaHelper */
$this->Application->StoreVar($event->Prefix . '_captcha_code', $captcha_helper->GenerateCaptchaCode());
$event->status = kEvent::erFAIL;
$event->redirect = false;
}
}
// email validation
elseif (!strlen($field_value) || ($field_name == 'ContactFormEmail' && !preg_match('/'.REGEX_EMAIL_USER.'@'.REGEX_EMAIL_DOMAIN.'/', $field_value))) {
$this->Application->SetVar('error_'.$field_name, 1);
$event->status = kEvent::erFAIL;
$event->redirect = false;
}
}
}
if ($event->status != kEvent::erSUCCESS) {
// set errors var
$this->Application->SetVar('ContactForm_HasErrors', 1);
return ;
}
$object = $event->getObject(); // get link object
/* @var $object kDBItem */
$send_params = Array(
'from_name' => $this->Application->GetVar('ContactFormFullName'),
'from_email' => $this->Application->GetVar('ContactFormEmail'),
'from_subject' => $this->Application->GetVar('ContactFormSubject'),
'message' => $this->Application->GetVar('ContactFormBody'),
'to_linkname' => $object->GetField('Name'),
);
$email_sent = $this->Application->emailUser('LINK.CONTACTFORM', $object->GetDBField('CreatedById'), $send_params);
if ( $email_sent ) {
$event->redirect = $this->Application->GetVar('success_template');
$redirect_params = Array (
'opener' => 's',
'pass' => 'all',
'thankyou_header' => $this->Application->GetVar('success_label_header'),
'thankyou_text' => $this->Application->GetVar('success_label_body')
);
$event->setRedirectParams($redirect_params);
$this->Application->emailAdmin('LINK.CONTACTFORM', null, $send_params);
}
else {
$this->Application->SetVar('error_ContactFormEmail', 1);
$event->status = kEvent::erFAIL;
$event->redirect = false;
}
}
/**
* Makes reciprocal check on link, when it is created
*
* @param kEvent $event
* @return void
* @access protected
*/
protected function OnBeforeItemCreate(kEvent $event)
{
parent::OnBeforeItemCreate($event);
$this->_checkLink($event);
}
/**
* Makes reciprocal check on link, when it is updated
*
* @param kEvent $event
* @return void
* @access protected
*/
protected function OnBeforeItemUpdate(kEvent $event)
{
parent::OnBeforeItemUpdate($event);
$this->_checkLink($event);
}
/**
* Makes reciprocal check on link & saves results
*
* @param kEvent $event
*/
function _checkLink($event)
{
if (!$this->Application->ConfigValue('ReciprocalLinkChecking')) {
return ;
}
$object = $event->getObject();
/* @var $object kDBItem */
if ($object->GetDBField('Url') != $object->GetOriginalField('Url')) {
// check only when url was changed
$link_helper = $this->Application->recallObject('LinkHelper');
/* @var $link_helper LinkHelper */
$link_checked = $link_helper->CheckReciprocalURL($object->GetDBField('Url'));
$object->SetDBField('ReciprocalLinkFound', $link_checked ? LINK_IS_RECIPROCAL : LINK_IS_NOT_RECIPROCAL);
if (!$link_checked) {
$this->Application->emailAdmin('LINK.RECIPROCAL.CHECK.FAILED');
}
}
}
/**
* Update links status by their reciprocal status
*
* @param kEvent $event
*/
function OnProcessReciprocalLinks($event)
{
if ( !$this->Application->ConfigValue('ReciprocalLinkChecking') ) {
return;
}
$object = $event->getObject( Array('skip_autoload' => true) );
/* @var $object kCatDBItem */
$link_helper = $this->Application->recallObject('LinkHelper');
/* @var $link_helper LinkHelper */
$id_field = $this->Application->getUnitOption($event->Prefix, 'IDField');
$table_name = $this->Application->getUnitOption($event->Prefix, 'TableName');
// 1. verify all links, that were not verified previously
$sql = 'SELECT ' . $id_field . '
FROM ' . $table_name . '
WHERE (ReciprocalLinkFound = 0)';
$not_checked_links = $this->Conn->GetCol($sql);
foreach ($not_checked_links as $link_id) {
$object->Load($link_id);
$link_checked = $link_helper->CheckReciprocalURL($object->GetDBField('Url'));
$object->SetDBField('ReciprocalLinkFound', $link_checked ? LINK_IS_RECIPROCAL : LINK_IS_NOT_RECIPROCAL);
$object->Update();
if ( $link_checked ) {
$object->ApproveChanges();
}
else {
$object->DeclineChanges();
$this->Application->emailAdmin('LINK.RECIPROCAL.CHECK.FAILED');
}
}
// 2. approve all links, that have succeeded in reciprocal check (during adding/changing on front-end)
$sql = 'SELECT ' . $id_field . '
FROM ' . $table_name . '
WHERE (ReciprocalLinkFound = ' . LINK_IS_RECIPROCAL . ') AND (Status <> ' . STATUS_ACTIVE . ')';
$verified_links = $this->Conn->GetCol($sql);
foreach ($verified_links as $link_id) {
$object->Load($link_id);
$object->ApproveChanges();
}
// 3. decline all links, that failed in reciprocal check (during adding/changing on front-end)
$sql = 'SELECT ' . $id_field . '
FROM ' . $table_name . '
WHERE (ReciprocalLinkFound = ' . LINK_IS_NOT_RECIPROCAL . ') AND (Status <> ' . STATUS_DISABLED . ')';
$not_verified_links = $this->Conn->GetCol($sql);
foreach ($not_verified_links as $link_id) {
$object->Load($link_id);
$object->DeclineChanges();
}
}
/**
* Allows to load duplicate link by special id
*
* @param kEvent $event
* @return int
* @access public
*/
public function getPassedID(kEvent $event)
{
$id = parent::getPassedID($event);
if ( ($event->Special == 'duplicates') && !is_numeric($id) ) {
$load_keys = unserialize(base64_decode($id));
// can't return $load_keys as $id, because "kCatDBItem::GetKeyClause" will ignore them
foreach ($load_keys as $field => $value) {
$load_keys[$field] = $field . ' = ' . $this->Conn->qstr($value);
}
$sql = 'SELECT ' . $this->Application->getUnitOption($event->Prefix, 'IDField') . '
FROM ' . $this->Application->getUnitOption($event->Prefix, 'TableName') . '
WHERE (' . implode(') AND (', $load_keys) . ')';
$id = $this->Conn->GetOne($sql);
}
return $id;
}
/**
* Returns events, that require item-based (not just event-name based) permission check
*
* @return Array
*/
function _getMassPermissionEvents()
{
$events = parent::_getMassPermissionEvents();
$events[] = 'OnMerge';
return $events;
}
/**
* [HOOK] Allows to add cloned subitem to given prefix
*
* @param kEvent $event
* @return void
* @access protected
*/
protected function OnCloneSubItem(kEvent $event)
{
parent::OnCloneSubItem($event);
if ( $event->MasterEvent->Prefix == 'rev' ) {
$clones = $this->Application->getUnitOption($event->MasterEvent->Prefix, 'Clones');
$subitem_prefix = $event->Prefix . '-' . $event->MasterEvent->Prefix;
$clones[$subitem_prefix]['ConfigMapping'] = Array (
'PerPage' => 'Perpage_LinkReviews',
'ShortListPerPage' => 'Perpage_LinkReviews_Short',
'DefaultSorting1Field' => 'Link_ReviewsSort',
'DefaultSorting2Field' => 'Link_ReviewsSort2',
'DefaultSorting1Dir' => 'Link_ReviewsOrder',
'DefaultSorting2Dir' => 'Link_ReviewsOrder2',
'ReviewDelayInterval' => 'link_ReviewDelay_Interval',
'ReviewDelayValue' => 'link_ReviewDelay_Value',
);
$this->Application->setUnitOption($event->MasterEvent->Prefix, 'Clones', $clones);
}
}
/**
* Occurs before original item of item in pending editing got deleted (for hooking only)
*
* @param kEvent $event
* @return void
* @access protected
*/
protected function OnBeforeDeleteOriginal(kEvent $event)
{
parent::OnBeforeDeleteOriginal($event);
$object = $event->getObject();
/* @var $object kDBItem */
$link_id = $event->getEventParam('original_id');
$new_resource_id = $object->GetDBField('ResourceId');
$sql = 'SELECT ResourceId
FROM ' . $this->Application->getUnitOption($event->Prefix, 'TableName') . '
WHERE ' . $this->Application->getUnitOption($event->Prefix, 'IDField') . '=' . $link_id;
$old_resource_id = $this->Conn->GetOne($sql);
$this->Application->SetVar('original_resource_id', $old_resource_id);
$this->changeResourceId('rel', 'TargetId', $old_resource_id, $new_resource_id);
}
/**
* Occurs after original item of item in pending editing got deleted
*
* @param kEvent $event
* @return void
* @access protected
*/
protected function OnAfterDeleteOriginal(kEvent $event)
{
parent::OnAfterDeleteOriginal($event);
$object = $event->getObject();
/* @var $object kDBItem */
$old_resource_id = $this->Application->GetVar('original_resource_id');
$new_resource_id = $object->GetDBField('ResourceId');
$this->changeResourceId('ls', 'ItemResourceId', $old_resource_id, $new_resource_id);
}
/**
* Changes item resource id in one field
*
* @param string $prefix
* @param string $field
* @param string $old_resource_id
* @param string $new_resource_id
* @return void
* @access protected
*/
protected function changeResourceId($prefix, $field, $old_resource_id, $new_resource_id)
{
$fields_hash = Array ($field => $new_resource_id);
$table_name = $this->Application->getUnitOption($prefix, 'TableName');
$this->Conn->doUpdate($fields_hash, $table_name, $field . ' = ' . $old_resource_id);
}
}

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