post_parser.php

来自「sabreipb 2.1.6 utf-8中文版本！」· PHP 代码 · 共 1,500 行 · 第 1/4 页

			if ( $ibforums->vars['max_emos'] )
			{
				if ($this->emoticon_count > $ibforums->vars['max_emos'])
				{
					$this->error = 'too_many_emoticons';
				}
			}
		}
		
		$txt = $this->bad_words($txt);
		
		$txt = $this->bbcode_check($txt);
		
		return $txt;
	}
	
	//-----------------------------------------
	// Checks opening and closing bbtags - doesn't parse at this point
	//-----------------------------------------
	
	function bbcode_check($t="")
	{
		global $ibforums, $DB, $std;
		
		$count = array();
		
		foreach( $ibforums->cache['bbcode'] as $i => $r )
		{
			if ( $r['bbcode_useoption'] )
			{
				$count[ $r['bbcode_id'] ]['open']      = substr_count( strtolower($t), '['.strtolower($r['bbcode_tag']).'=' );
				$count[ $r['bbcode_id'] ]['wrongopen'] = substr_count( strtolower($t), '['.strtolower($r['bbcode_tag']).']' );
			}
			else
			{
				$count[ $r['bbcode_id'] ]['open']      = substr_count( strtolower($t), '['.strtolower($r['bbcode_tag']).']' );
				$count[ $r['bbcode_id'] ]['wrongopen'] = substr_count( strtolower($t), '['.strtolower($r['bbcode_tag']).'=' );
			}
			
			$count[ $r['bbcode_id'] ]['closed'] = substr_count( strtolower($t), '[/'.strtolower($r['bbcode_tag']).']' );
			
			//-----------------------------------------
			// check...
			//-----------------------------------------
			
			if ( $count[ $r['bbcode_id'] ]['open'] != $count[ $r['bbcode_id'] ]['closed'] )
			{
				if ( $count[ $r['bbcode_id'] ]['wrongopen'] == $count[ $r['bbcode_id'] ]['closed'] )
				{
					$this->error = 'custom_tags_incorrect2';
				}
				else
				{
					$this->error = 'custom_tags_incorrect';
				}
			}
		}
		
		return $t;
	}
	
	//-----------------------------------------
	// My strip-tags. Converts HTML entities back before strippin' em
	//-----------------------------------------
	
	function my_strip_tags($t="")
	{
		$t = str_replace( '>', '>', $t );
		$t = str_replace( '&lt;', '<', $t );
		
		$t = strip_tags($t);
		
		// Make sure nothing naughty is left...
		
		$t = str_replace( '<', '&lt;', $t );
		$t = str_replace( '>', '&gt;', $t );
		
		return $t;
	}
		
	
	//-----------------------------------------
	// Word wrap, wraps 'da word innit
	//-----------------------------------------
	
	function my_wordwrap($t="", $chrs=0, $replace="<br />")
	{
		if ( $t == "" )
		{
			return $t;
		}
		
		if ( $chrs < 1 )
		{
			return $t;
		}
		
		$t = preg_replace("#([^\s<>'\"/\.\\-\?&\n\r\%]{".$chrs."})#i", " \\1".$replace ,$t);
		
		return $t;
		
	}
	
	//-----------------------------------------
	// Post DB parse tags
	//-----------------------------------------
	
	function post_db_parse($t="")
	{
		global $ibforums, $DB;
		
		if ( $this->pp_do_html )
		{
			$t = $this->post_db_parse_html( $t );
		}
		else
		{
			//$t = $this->my_strip_tags( $t );
		}
		
		if ( $this->pp_wordwrap > 0 )
		{
			$t = $this->my_wordwrap( $t, $this->pp_wordwrap );
		}
		
		//-----------------------------------------
		// Custom BB code
		//-----------------------------------------
		
		if ( strstr( $t, '[/' )  )
		{ 
			$t = $this->post_db_parse_bbcode($t);
		}
		
		return $t;
	}
	
	//-----------------------------------------
	// Post DB parse BBCode
	//-----------------------------------------
	
	function post_db_parse_bbcode($t="")
	{
		global $ibforums, $DB, $std;
		
		if ( is_array( $ibforums->cache['bbcode'] ) and count( $ibforums->cache['bbcode'] ) )
		{
			foreach( $ibforums->cache['bbcode'] as $i => $row )
			{
				if ( substr_count( $row['bbcode_replace'], '{content}' ) > 1 )
				{
					//-----------------------------------------
					// Slightly slower
					//-----------------------------------------
					
					if ( $row['bbcode_useoption'] )
					{
						preg_match_all( "#(\[".preg_quote($row['bbcode_tag'], '#' )."=(?:&quot;|&\#39;)?(.+?)(?:&quot;|&\#39;)?\])(.+?)(\[/".preg_quote($row['bbcode_tag'], '#' )."\])#si", $t, $match );
						
						for ($i=0; $i < count($match[0]); $i++)
						{
							$tmp = $row['bbcode_replace'];
							$tmp = str_replace( '{option}' , $match[2][$i], $tmp );
							$tmp = str_replace( '{content}', $match[3][$i], $tmp );
							$t   = str_replace( $match[0][$i], $tmp, $t );
						}
					}
					else
					{
						preg_match_all( "#(\[".preg_quote($row['bbcode_tag'], '#' )."\])(.+?)(\[/".preg_quote($row['bbcode_tag'], '#' )."\])#si", $t, $match );
	
						for ($i=0; $i < count($match[0]); $i++)
						{
							$tmp = $row['bbcode_replace'];
							$tmp = str_replace( '{content}', $match[2][$i], $tmp );
							$t   = str_replace( $match[0][$i], $tmp, $t );
						}
					}
				}
				else
				{
					$replace = explode( '{content}', $row['bbcode_replace'] );
					
					if ( $row['bbcode_useoption'] )
					{
						$t = preg_replace( "#\[".$row['bbcode_tag']."=(?:&quot;|&\#39;)?(.+?)(?:&quot;|&\#39;)?\]#si", str_replace( '{option}', "\\1", $replace[0] ), $t );
					}
					else
					{
						$t = preg_replace( '#\['.$row['bbcode_tag'].'\]#i' , $replace[0], $t );
					}
					
					$t = preg_replace( '#\[/'.$row['bbcode_tag'].'\]#i', $replace[1], $t );
				}
			}
		}
		
		return $t;
	}
	
	//-----------------------------------------
	// parse_html
	// Converts the doHTML tag
	//-----------------------------------------
	
	function post_db_parse_html($t="")
	{
		if ( $t == "" )
		{
			return $t;
		}
		
		//-----------------------------------------
		// Remove <br>s 'cos we know they can't
		// be user inputted, 'cos they are still
		// &lt;br&gt; at this point :)
		//-----------------------------------------
		
		if ( $this->pp_nl2br != 1 )
		{
			$t = str_replace( "<br>"    , "\n" , $t );
			$t = str_replace( "<br />"  , "\n" , $t );
		}
		
		$t = str_replace( "&#39;"   , "'", $t );
		$t = str_replace( "&#33;"   , "!", $t );
		$t = str_replace( "&#036;"   , "$", $t );
		$t = str_replace( "&#124;"  , "|", $t );
		$t = str_replace( "&amp;"   , "&", $t );
		$t = str_replace( "&gt;"    , ">", $t );
		$t = str_replace( "&lt;"    , "<", $t );
		$t = str_replace( "&quot;"  , '"', $t );
		
		//-----------------------------------------
		// Take a crack at parsing some of the nasties
		// NOTE: THIS IS NOT DESIGNED AS A FOOLPROOF METHOD
		// AND SHOULD NOT BE RELIED UPON!
		//-----------------------------------------
		
		$t = preg_replace( "/javascript/i" , "j&#097;v&#097;script", $t );
		$t = preg_replace( "/alert/i"      , "&#097;lert"          , $t );
		$t = preg_replace( "/about:/i"     , "&#097;bout:"         , $t );
		$t = preg_replace( "/onmouseover/i", "&#111;nmouseover"    , $t );
		$t = preg_replace( "/onclick/i"    , "&#111;nclick"        , $t );
		$t = preg_replace( "/onload/i"     , "&#111;nload"         , $t );
		$t = preg_replace( "/onsubmit/i"   , "&#111;nsubmit"       , $t );
		
		return $t;
	}
	
	
	//-----------------------------------------
	// Badwords:
	// Swops naughty, naugty words and stuff
	//-----------------------------------------
	
	function bad_words($text = "")
	{
		global $DB, $ibforums;
		
		if ($text == "")
		{
			return "";
		}
		
		if ( $this->bypass_badwords == 1 )
		{
			return $text;
		}
		
		//-----------------------------------------
		
		if ( is_array( $ibforums->cache['badwords'] ) )
		{
			usort( $ibforums->cache['badwords'] , array( 'post_parser', 'word_length_sort' ) );
			
			if ( count($ibforums->cache['badwords']) > 0 )
			{
				foreach($ibforums->cache['badwords'] as $idx => $r)
				{
				
					if ($r['swop'] == "")
					{
						$replace = '######';
					}
					else
					{
						$replace = $r['swop'];
					}
					
					//-----------------------------------------
					
					$r['type'] = preg_quote($r['type'], "/");
					
					//-----------------------------------------
				
					if ($r['m_exact'] == 1)
					{
						$text = preg_replace( "/(^|\b)".$r['type']."(\b|!|\?|\.|,|$)/i", "$replace", $text );
					}
					else
					{
						$text = preg_replace( "/".$r['type']."/i", "$replace", $text );
					}
				}
			}
		}
		
		return $text;
		
	}
	
	
	/*-------------------------------------------------------------------------*/
	// unconvert:
	// Parses the HTML back into plain text
	/*-------------------------------------------------------------------------*/
		
	function unconvert($txt="", $code=1, $html=0) {
	
		$txt = preg_replace( "#<!--emo&(.+?)-->.+?<!--endemo-->#", "\\1" , $txt );
		
		if ($code == 1)
		{
			$txt = preg_replace( "#<!--sql-->(.+?)<!--sql1-->(.+?)<!--sql2-->(.+?)<!--sql3-->#eis"    , "\$this->unconvert_sql(\"\\2\")", $txt);
			$txt = preg_replace( "#<!--html-->(.+?)<!--html1-->(.+?)<!--html2-->(.+?)<!--html3-->#e", "\$this->unconvert_htm(\"\\2\")", $txt);
		
			$txt = preg_replace( "#<!--Flash (.+?)-->.+?<!--End Flash-->#e"  , "\$this->unconvert_flash('\\1')", $txt );
			$txt = preg_replace( "#<img src=[\"'](\S+?)['\"].+?".">#"           , "\[img\]\\1\[/img\]"            , $txt );
			
			$txt = preg_replace( "#<a href=[\"']mailto:(.+?)['\"]>(.+?)</a>#"                         , "\[email=\\1\]\\2\[/email\]"   , $txt );
			$txt = preg_replace( "#<a href=[\"'](http://|https://|ftp://|news://)?(\S+?)['\"].+?".">(.+?)</a>#" , "\[url=\\1\\2\]\\3\[/url\]"  , $txt );
			
			$txt = preg_replace( "#<!--QuoteBegin-->(.+?)<!--QuoteEBegin-->#"                , '[quote]'         , $txt );
			$txt = preg_replace( "#<!--QuoteBegin-{1,2}([^>]+?)\+([^>]+?)-->(.+?)<!--QuoteEBegin-->#"  , "[quote=\\1,\\2]" , $txt );
			$txt = preg_replace( "#<!--QuoteBegin-{1,2}([^>]+?)\+-->(.+?)<!--QuoteEBegin-->#"       , "[quote=\\1]" , $txt );
			
			$txt = preg_replace( "#<!--QuoteEnd-->(.+?)<!--QuoteEEnd-->#"                    , '[/quote]'        , $txt );
			
			$txt = preg_replace( "#<!--c1-->(.+?)<!--ec1-->#", '[code]'   , $txt );
			$txt = preg_replace( "#<!--c2-->(.+?)<!--ec2-->#", '[/code]'  , $txt );
			
			$txt = preg_replace( "#<i>(.+?)</i>#is"  , "\[i\]\\1\[/i\]"  , $txt );
			$txt = preg_replace( "#<b>(.+?)</b>#is"  , "\[b\]\\1\[/b\]"  , $txt );
			$txt = preg_replace( "#<s>(.+?)</s>#is"  , "\[s\]\\1\[/s\]"  , $txt );
			$txt = preg_replace( "#<u>(.+?)</u>#is"  , "\[u\]\\1\[/u\]"  , $txt );
			
			$txt = preg_replace( "#(\n){0,}<ul>#" , "\\1\[list\]"  , $txt );
			$txt = preg_replace( "#(\n){0,}<ol type='(a|A|i|I|1)'>#" , "\\1\[list=\\2\]\n"  , $txt );
			$txt = preg_replace( "#(\n){0,}<li>#" , "\n\[*\]"     , $txt );
			$txt = preg_replace( "#(\n){0,}</ul>(\n){0,}#", "\n\[/list\]\\2" , $txt );
			$txt = preg_replace( "#(\n){0,}</ol>(\n){0,}#", "\n\[/list\]\\2" , $txt );
			
			while ( preg_match( "#<span style=['\"]font-size:(.+?)pt;line-height:100%['\"]>(.+?)</span>#is", $txt ) )
			{
				$txt = preg_replace( "#<span style=['\"]font-size:(.+?)pt;line-height:100%['\"]>(.+?)</span>#ise" , "\$this->unconvert_size('\\1', '\\2')", $txt );
			}
			
			while ( preg_match( "#<span style=['\"]color:(.+?)['\"]>(.+?)</span>#is", $txt ) )
			{
				$txt = preg_replace( "#<span style=['\"]color:(.+?)['\"]>(.+?)</span>#is"    , "\[color=\\1\]\\2\[/color\]", $txt );
			}
			
			while ( preg_match( "#<span style=['\"]font-family:(.+?)['\"]>(.+?)</span>#is", $txt ) )
			{
				$txt = preg_replace( "#<span style=['\"]font-family:(.+?)['\"]>(.+?)</span>#is", "\[font=\\1\]\\2\[/font\]", $txt );
			}
			
			// Tidy up the end quote stuff
			
			$txt = preg_replace( "#(\[/QUOTE\])\s*?<br />\s*#si", "\\1\n", $txt );
			$txt = preg_replace( "#(\[/QUOTE\])\s*?<br>\s*#si"  , "\\1\n", $txt );
			
			$txt = preg_replace( "#<!--EDIT\|.+?\|.+?-->#" , "" , $txt );