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<?php
/**
 * @file        like.php     Provides ajax methods for the central like/follow class
 *~TERABYTE_DOC_READY~
 * $Copyright: (c) 2001 - 2011 Invision Power Services, Inc.$
 * $License: http://www.invisionpower.com/company/standards.php#license$
 * $Author: ips_terabyte $
 * @since        -
 * $LastChangedDate: 2012-04-05 12:35:31 -0400 (Thu, 05 Apr 2012) $
 * @version        v3.3.3
 * $Revision: 10571 $
 */

if ( ! defined( 'IN_IPB' ) )
{
    print "<h1>Incorrect access</h1>You cannot access this file directly. If you have recently upgraded, make sure you upgraded all the relevant files.";
    exit();
}

/**
 *
 * @class        public_core_ajax_like
 * @brief        Provides ajax methods for the central like/follow class
 */
class public_core_global_like extends ipsCommand
{
    /**
     * Main function executed automatically by the controller
     *
     * @param    object        $registry        Registry object
     * @return    @e void
     */
    public function doExecute( ipsRegistry $registry )
    {
        /* Init some data */
        require_once( IPS_ROOT_PATH . 'sources/classes/like/composite.php' );/*noLibHook*/
        
        $this->registry->getClass('class_localization')->loadLanguageFile( array( 'public_like' ), 'core' );
        
        /* What to do? */
        switch( $this->request['do'] )
        {
            case 'unsubscribe':
                $html = $this->_unsubscribe();
            break;
            case 'doUnsubscribe':
                $html = $this->_doUnsubscribe();
            break;
        }
        
        /* Output */
        $this->registry->output->addContent( $html );
        $this->registry->output->sendOutput();    
    }
    
    /**
     * Perform the unsubscribe
     *
     * @return    @e void
     */
    protected function _doUnsubscribe()
    {
        $like_rel_id = trim( $this->request['like_rel_id'] );
        $like_area   = trim( $this->request['like_area'] );
        $like_app    = trim( $this->request['like_app'] );
        $like_id     = trim( $this->request['like_id'] );
        
            /* Member? */
         if ( ! $this->memberData['member_id'] )
         {
             $this->registry->output->showError( 'no_permission', 'pcgl-d-1' );
         }
         
        if ( $this->request['auth_key'] !=  $this->member->form_hash )
         {
             $this->registry->output->showError( 'no_permission', 'pcgl-d-2' );
         }
         
         /* Think we're safe... */
         $this->_like = classes_like::bootstrap( $like_app, $like_area );
         
         /* Get data */
         $data = $this->_like->getDataByRelationshipId( $like_rel_id, false );
         
         if ( $data[ $this->memberData['member_id'] ]['like_member_id'] != $this->memberData['member_id'] )
         {
             $this->registry->output->showError( 'no_permission', 'pcgl-d-3' );
         }
         
         /* Remove it */
         $this->_like->remove( $like_rel_id, $this->memberData['member_id'] );
        
         /* Boing it */
         $this->registry->getClass('output')->redirectScreen( $this->lang->words['pg_unlike_done'], $this->registry->getClass('output')->buildUrl( 'app=core&amp;module=search&amp;do=followed', 'public' ) );
    }
    
    /**
     * Show unsubscribe dialogue
     *
     * @return    @e void
     */
    protected function _unsubscribe()
    {
        /* Fetch data */
        $key = trim( IPSText::base64_decode_urlSafe( $this->request['key'] ) );
        
        list( $app, $area, $relId, $likeMemberId, $memberId, $email ) = explode( ';', $key );
        
        /* Sanitize */
        $relId        = intval( $relId );
        $likeMemberId = intval( $likeMemberId );
        $memberId     = intval( $memberId );
        
        $app          = IPSText::alphanumericalClean( $app );
        $area         = IPSText::alphanumericalClean( $area );
        
         /* Member? */
         if ( ! $this->memberData['member_id'] )
         {
             $this->registry->output->showError( 'no_permission', 'pcgl-1' );
         }
         
        if ( ! $app || ! $area || ! $relId )
         {
             $this->registry->output->showError( 'no_permission', 'pcgl-1' );
         }
         
           if ( ( $memberId != $likeMemberId ) || ( $memberId != $this->memberData['member_id'] ) )
         {
             $this->registry->output->showError( 'no_permission', 'pcgl-2' );
         }
         
         if ( $email != $this->memberData['email'] )
         {
             $this->registry->output->showError( 'no_permission', 'pcgl-3' );
         }
         
         /* Think we're safe... */
         try
         {
             $this->_like = classes_like::bootstrap( $app, $area );
         }
         catch ( Exception $ex )
         {
             $this->registry->output->showError('no_permission', 'pcgl-4');
         }
         
         /* Get data */
         $data = $this->_like->getDataByRelationshipId( $relId, false );
         
         if ( ! is_array( $data[ $this->memberData['member_id'] ] ) )
         {
             $this->registry->output->showError( $this->lang->words['pg_no_longer_following'], 'pcgl-4' );
         }
         
         /* Get meta */
         $meta = $this->_like->getMeta( $relId );
         
         /* Display box, then */
         $this->registry->output->setTitle( $this->lang->words['pg_unfollow_title'] . ' - ' . ipsRegistry::$settings['board_name'] );
        $this->registry->output->addNavigation( $this->lang->words['pg_unfollow_title'], '' );
        
        return $this->registry->output->getTemplate('global_other')->followUnsubscribe( $data, $meta );
    }
    

}