if ( !defined('MAIN_LOADED') ) {
	die("Direct access not allowed");
}

/*
	bbcode functions
	!regexp leeched from phpBB
*/

function message_bbdecode($text) {

   GLOBAL $lang, $config;
   # func 0 - str, 1 -preg

   $enlarge_sz = (isset($lang['Enlarge_Image'])) ? $lang['Enlarge_Image'] : '';
   $s_path = (isset($config['script_path'])) ? $config['script_path'] : '';

   $text = preg_replace('#(script|about|applet|activex|chrome):#is', "\\1:", $text);

   $ru_preg = chr(0x7F)."-".chr(0xff);

   // set id if wanna to get rid of &?

   $bb_tags = array (

   		array ( 'func' => 1, 'pattern' => "/\[color=(\#[0-9A-F]array ( 6 )|[a-z]+)\]/si", 'replacement' => '<span style="color: $1">' ),
        array ( 'func' => 0, 'pattern' => "[/color]", 'replacement' => '</span>' ),
        array ( 'func' => 1, 'pattern' => "/\[size=([1-2]?[0-9])\]/si", 'replacement' => '<span style="font-size: ${1}px; line-height: normal">' ),
        array ( 'func' => 0, 'pattern' => "[/size]", 'replacement' => '</span>' ),
        array ( 'func' => 0, 'pattern' => "[b]", 'replacement' => '<b>' ),
        array ( 'func' => 0, 'pattern' => "[/b]", 'replacement' => '</b>' ),
        array ( 'func' => 0, 'pattern' => "[u]", 'replacement' => '<u>' ),
        array ( 'func' => 0, 'pattern' => "[/u]", 'replacement' => '</u>' ),
        array ( 'func' => 0, 'pattern' => "[i]", 'replacement' => '<i>' ),
    	array ( 'func' => 0, 'pattern' => "[/i]", 'replacement' => '</i>' ),


        array ( 'func' => 0, 'pattern' => "[pre]", 'replacement' => '<p class="pre">' ),
    	array ( 'func' => 0, 'pattern' => "[/pre]", 'replacement' => '</p>' ),

	// external images
        array ( 'func' => 1, 'pattern' => "#\[img\](http|ftp)([^?].*?)\[/img\]#i", 'replacement' => '<img src="$1$2" border="0" />' ),
	// internal
        array ( 'func' => 1, 'pattern' => "#\[img\]([^?].*?)\[/img\]#i", 'replacement' => '<img src="'. $s_path .'$1" border="0" />' ),

        //external urls
        array ( 'id' => '1', 'func' => 1, 'pattern' => "#\[url=([\w]+?://[\d\w\#$%&~/.\-;:=,?@\(\)\[\]+]*?)\]([^?\n\r\t].*?)\[/url\]#is" , 'replacement' => '<a href="$1"  class="postlink">$2</a>' ),
        array ( 'id' => '1', 'func' => 1, 'pattern' => "#\[url\]([\w]+?://[\d\w\#$%&~/.\-;:=,?@\(\)\[\]+]*?)\[/url\]#is", 'replacement' => '<a href="$1"  class="postlink">$1</a>' ),
        array ( 'id' => '1', 'func' => 1, 'pattern' => "#\[url\]((www|ftp)\.[\w\#$%&~/.\-;:=,?@\[\]+]*?)\[/url\]#is", 'replacement' => '<a href="$2://$1"  class="postlink">$1</a>' ),
        array ( 'id' => '1', 'func' => 1, 'pattern' => "#\[url=((www|ftp)\.[\w\#$%&~/.\-;:=,?@\[\]+]*?)\]([^?\n\r\t].*?)\[/url\]#is", 'replacement' => '<a href="http://$1"  class="postlink">$3</a>' ),

        array ( 'func' => 1, 'pattern' => "#\[email\]([a-z0-9&\-_.]+?@[\w\-]+\.([\w\-\.]+\.)?[\w]+)\[/email\]#si", 'replacement' => '<a href="mailto:$1">$1</a>'),

        //internal urls
		array ( 'id' => '1', 'func' => 1, 'pattern' => "#\[url=([\w\d\#$%&~/.\-;:=,?@\[\]+]*?)\]([^?\n\r\t].*?)\[/url\]#is" , 'replacement' => '<a href="'.$s_path.'$1"  class="postlink">$2</a>' ),  // $config['self_url']
        array ( 'id' => '1', 'func' => 1, 'pattern' => "#\[url\]([\w\d\#$%&~/.\-;:=,?@\[\]+]*?)\[/url\]#is", 'replacement' => '<a href="'.$s_path.'$1"  class="postlink">$1</a>' ),

        /*
        <img border="0" src="/images/c/poduwki/10-01.jpg" title="Увеличить изображение.." onclick="js_openimg('/images/c/poduwki/10-02.jpg')" class="img_pic" />
        style="margin:4px"
        */
        
        //[thumb align=align title=title]pic.ext[/thumb]
		array ( 'id' => '1', 'func' => 1, 'pattern' => "#\[thumb align=(\w+) title=([{$ru_preg}\d\s\w\-_\(\)]+)\]([\w\d-_\^\?]+\.(?:gif|jpeg|jpg|png))\[/thumb\]#is" , 'replacement' => '<img src="'. $s_path .'downloads/uploads/thumb_$3" border="0" align="$1" alt="$2 ('.$enlarge_sz.')" onclick="js_openimg(\''.$s_path .'downloads/uploads/$3\')" class="img_pic" >' ),

        // [thumb align=align]thumb.ext[/thumb]
		array ( 'id' => '1', 'func' => 1, 'pattern' => "#\[thumb align=(\w+)\]([{$ru_preg}\w\d\-_\^\?]+\.(?:gif|jpeg|jpg|png))\[/thumb\]#is" , 'replacement' => '<img src="'. $s_path .'downloads/uploads/thumb_$2" border="0" class="forumline" align="$1" style="margin:4px">' ),

	// geshi
		array ( 'id' => 'geshi', 'func' => 1, 'pattern' => "#\[code type=(\w+)\](.*)\[/code\]#smU" )


        );

    # REPLACE


     while ( list($k,$v) = each($bb_tags) ) {

    # print "{$k} -> {$v['pattern']} -> " . htmlspecialchars($v['replacement']) ."<br>";
	    $id = @$v['id'];
            if (isset($v['id'])) 
            	$text = str_replace( '&amp;', '&', $text) ;

	switch ($id) {

		case 'geshi':
            require_once($GLOBALS['root_path'].'includes/geshi/geshi.php');                
            $text = preg_replace_callback(
	              $v['pattern'],
                  "geshi_highlight_callback",
	              $text);
            break; 

		default:
            $text = ($v['func']) ?
            preg_replace( $v['pattern'], $v['replacement'], $text) :
            str_replace( $v['pattern'], $v['replacement'], $text) ;
		    break;
	}

     }

    return $text;

 }

 /*

 check message

 textonly = 0, bbcode = 1, html = 2

 */

function message_decode( $text, $type ) {

//    $text = trim($text);
    if ($type < TEXT_TYPE_HTML /*bbcode&text*/) {
        $text = htmlspecialchars($text);
    }

    if($type == TEXT_TYPE_BBCODE /*bbcode*/) {
        $text = message_bbdecode($text);
    }

    if ($type < TEXT_TYPE_HTML /*bbcode&text*/) {
    	$text = nl2br($text);
    }

    if ($type == TEXT_TYPE_HTML) {
        //clear from nasty boyz
        $text = preg_replace( '/\<[\s]+script[\s]*(\"|\'|\`)[\w]?script[^\>]+/is', 'SKILLZ_JS_FILTERED', $text);
        $text = preg_replace( '/javascript:/is', 'SKILLZ_JS_FILTERED', $text);
    }

    return $text;
}

/*
  	geshi highlight
*/

function geshi_highlight_callback($matches) {
    $geshi = new GeSHi(html_entity_decode($matches[2]), $matches[1]);
    $geshi->set_header_type(GESHI_HEADER_NONE);
#   $geshi->enable_line_numbers(GESHI_NORMAL_LINE_NUMBERS);
    $buff = $geshi->parse_code();
    $buff = "<div class='code'><code>{$buff}</code></div>";
    return $buff;
}