<?php
$module->registerModule( 'GoogleDefine', 'start' );
 
class GoogleDefine {
 
	var $lang = 'pt_PT';
	var $num = 1;
	var $define = '';
	
	function start() {
		global $iBot;

		if($iBot->args[0] == '!define') {
			$word = $iBot->makeArgs( 1 );
			
			$this->define( $word );
		}
	}

	function define( $word = '' ) {
		global $iBot;

		if(empty( $word )) {
			$iBot->msgChan( 'Usage: !define word' );
			return;
		}
 
		$this->define = $word;
 
		$this->num = empty( $this->num ) ? 1 : $this->num;
 
		$data = $this->getData();
 
		if(empty( $data )) {
			return false;
		}
 
		$defined = $this->parse_data( $data );
 
		if(!$defined) {
			$msg  = 'Nenhuma definição encontrada para '. $this->define;
			$iBot->msgChan( $msg );
			return;
		}

		$exp = explode( '<font size=-1><li>', $defined );
		$exp = explode( '<br>', $exp[1] );
		$msg = $exp[0];
		$exp = explode( '<font color=#008000>', $exp[1] );
		$exp = explode( '</font></a></font>', $exp[1] );
		$url = $exp[0];

		$msg = $this->unhtmlentities( $msg ).' ( '. $url .' )';
		
		$iBot->msgChan( $msg );
	}
 
	function parse_data( $data ) {
		
		$define = explode( '<ul type="disc">', $data );
		
		if(!empty( $define[1] )) {
			$define = explode( '</ul>', $define[1] );
			
			preg_match_all( '/<a href="(.*?)">/', $define[0], $links );
			
			foreach( $links[1] as $link ) {
				$pattern[] = "/". preg_quote( $link, '/'  ) ."/";
				$replace[] = "http://www.google.pt". $link;
			}
			
			$define = preg_replace( $pattern, $replace, $define[0] );
 
			$define = explode( '<p></p>', $define );
 
			$defined = '';
 
			for($x = 0; $x < $this->num; $x++ ) {
				if(count( $define ) >= $this->num) {
					$defined .= $define[$x];
				}
			}
 
			if(empty( $defined )) {
				foreach( $define as $value ) {
					$defined .= $value;
				}
			}
 
			return $defined;
		}
 
		return false;
	}

	function unhtmlentities ($string)
	{
		    $trans_tbl = get_html_translation_table (HTML_ENTITIES);
		        $trans_tbl = array_flip ($trans_tbl);
		        return strtr ($string, $trans_tbl);
	}

	function getData () {
 
		$fp = fsockopen( 'www.google.pt', 80, $errno, $errstr, 2 );
 
		if(!$fp) {
			die( "Não foi possivel conectar ao google $errno ($errstr)");
		}
 
		$header = 'GET /search?q=define%3A'. urlencode( $this->define ) .'&hl=pt-PT&oi=definel&defl='. $this->lang ." HTTP/1.1\r\n";
		$header .= "Host: www.google.pt\r\n";
		$header .= "User-Agent: {$_SERVER['HTTP_USER_AGENT']}\r\n";
		$header .= "Referer: http://www.google.pt/webhp?hl=pt-PT&btnG=Pesquisar\r\n";
		$header .= "Connection: close\r\n\r\n";
 
		fwrite( $fp, $header );
 
		$data = '';
 
		while(!feof( $fp )) {
			$data .= fgets( $fp, 4000 );
		}
 
		fclose( $fp );
 
		return $data;
	}
}