search_engines.php

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<?php

      /*
      *     This source code is a part of the Ultimix Project. 
      *     It is distributed under BSD license. All other third side source code (like tinyMCE) is distributed under 
      *     it's own license wich could be found from the corresponding files or sources. 
      *     This source code is provided "as is" without any warranties or garanties.
      *
      *     Have a nice day!
      *
      *     @url http://ultimix.sorceforge.net
      *
      *     @author Alexey "gdever" Dodonov
      */
      
      class search_engines_1_0_0{
      
            var                           $Security = false;
            var                           $Text = false;
      
            function                __construct()
            {
                  try
                  {
                        $this->Security = get_package( 'security' , 'last' , __FILE__ );
                        $this->Text = get_package( 'string::text' , 'last' , __FILE__ );
                  }
                  catch( Exception $e )
                  {
                        $a = func_get_args();_throw_exception_object( __METHOD__ , $a , $e );
                  }
            }

            function                get_referer()
            {
                  try
                  {
                        $URL = '';
                        
                        if( $this->Security->get_gp( 'referer' , 'raw' , '' ) != '' )
                        {
                              $URL = $this->Security->get_gp( 'referer' , 'raw' );
                        }
                        else
                        {
                              $URL = $this->Security->get_srv( 'HTTP_REFERER' , 'raw' , false );
                        }
                        
                        return( $URL );
                  }
                  catch( Exception $e )
                  {
                        $a = func_get_args();_throw_exception_object( __METHOD__ , $a , $e );
                  }
            }
            
            function                test_crawler( $CrawlerUrl , $CrawlerName , $Crawler )
            {
                  try
                  {
                        $URL = $this->get_referer();
                  
                        if( $Crawler === false && stristr( $URL , $CrawlerUrl ) )
                        {
                              $Crawler = $CrawlerName;
                        }
                        
                        return( $Crawler );
                  }
                  catch( Exception $e )
                  {
                        $a = func_get_args();_throw_exception_object( __METHOD__ , $a , $e );
                  }
            }
            
            function                get_search_engine()
            {
                  try
                  {
                        if( $this->get_referer() === false )
                        {
                              return( false );
                        }
                        
                        $Crawler = false;
                        
                        $Crawler = $this->test_crawler( 'google.' , 'Google' , $Crawler );
                        $Crawler = $this->test_crawler( 'yandex.' , 'Yandex' , $Crawler );
                        $Crawler = $this->test_crawler( 'qip.ru' , 'Qip' , $Crawler );
                        $Crawler = $this->test_crawler( 'mail.ru' , 'Mail' , $Crawler );
                        $Crawler = $this->test_crawler( 'rambler.ru' , 'Rambler' , $Crawler );
                        $Crawler = $this->test_crawler( 'bing.com' , 'Bing' , $Crawler );
                        $Crawler = $this->test_crawler( 'nigma.ru' , 'Nigma' , $Crawler );
                        $Crawler = $this->test_crawler( 'webalta.ru' , 'Webalta' , $Crawler );
                        $Crawler = $this->test_crawler( 'ukr.net' , 'Ukr.net' , $Crawler );
                        $Crawler = $this->test_crawler( 'conduit.com' , 'Conduit' , $Crawler );
                        
                        return( $Crawler );
                  }
                  catch( Exception $e )
                  {
                        $a = func_get_args();_throw_exception_object( __METHOD__ , $a , $e );
                  }
            }
            
            function                get_search_prefix()
            {
                  try
                  {
                        $SearchEngine = $this->get_search_engine();
                        
                        $Search = false;
                        
                        switch( $SearchEngine )
                        {
                              case( 'Google' ):
                              case( 'Webalta' ):
                              case( 'Mail' ):
                              case( 'Bing' ):
                              case( 'Conduit' ):
                              case( 'Ukr.net' ):$Search = 'q=';break;
                              case( 'Yandex' ):$Search = 'text=';break;
                              case( 'Qip' ):
                              case( 'Rambler' ):$Search = 'query=';break;
                              case( 'Nigma' ):$Search = 's=';break;
                        }
                        
                        return( $Search );
                  }
                  catch( Exception $e )
                  {
                        $a = func_get_args();_throw_exception_object( __METHOD__ , $a , $e );
                  }
            }
            
            function                get_search_query()
            {
                  try
                  {
                        $Search = $this->get_search_prefix();

                        if( $Search !== false )
                        {
                              $URL = $this->get_referer();

                              $Phrase = urldecode( urldecode( $URL ) );

                              preg_match( "/[\?\&]{1}$Search([^\&\#]*)/" , "$Phrase&" , $Phrase2 );

                              return( isset( $Phrase2[ 1 ] ) ? $this->Text->iconv( false , 'utf-8' , $Phrase2[ 1 ] ) : false );
                        }
                        else
                        {
                              return( false );
                        }
                  }
                  catch( Exception $e )
                  {
                        $a = func_get_args();_throw_exception_object( __METHOD__ , $a , $e );
                  }
            }
            
            function                redirected_from_search_engine()
            {
                  try
                  {
                        $Redir = $this->get_search_engine();
                        
                        return( $Redir === false ? false : true );
                  }
                  catch( Exception $e )
                  {
                        $a = func_get_args();_throw_exception_object( __METHOD__ , $a , $e );
                  }
            }
      }
?>