max number of attributes private $ValidTags = array('b'=>0, 'u'=>0, 'i'=>0, 's'=>0, '*'=>0, '#'=>0, 'artist'=>0, 'user'=>0, 'n'=>0, 'inlineurl'=>0, 'inlinesize'=>1, 'headline'=>1, 'align'=>1, 'color'=>1, 'colour'=>1, 'size'=>1, 'url'=>1, 'img'=>1, 'quote'=>1, 'pre'=>1, 'code'=>1, 'tex'=>0, 'hide'=>1, 'plain'=>0, 'important'=>0, 'torrent'=>0, 'rule'=>0, 'mature'=>1, ); private $Smileys = array( ':angry:' => 'angry.gif', ':-D' => 'biggrin.gif', ':D' => 'biggrin.gif', ':|' => 'blank.gif', ':-|' => 'blank.gif', ':blush:' => 'blush.gif', ':cool:' => 'cool.gif', ':'(' => 'crying.gif', ':crying:' => 'crying.gif', '>.>' => 'eyesright.gif', ':frown:' => 'frown.gif', '<3' => 'heart.gif', ':unsure:' => 'hmm.gif', //':\\' => 'hmm.gif', ':whatlove:' => 'ilu.gif', ':lol:' => 'laughing.gif', ':loveflac:' => 'loveflac.gif', ':flaclove:' => 'loveflac.gif', ':ninja:' => 'ninja.gif', ':no:' => 'no.gif', ':nod:' => 'nod.gif', ':ohno:' => 'ohnoes.gif', ':ohnoes:' => 'ohnoes.gif', ':omg:' => 'omg.gif', ':o' => 'ohshit.gif', ':O' => 'ohshit.gif', ':paddle:' => 'paddle.gif', ':(' => 'sad.gif', ':-(' => 'sad.gif', ':shifty:' => 'shifty.gif', ':sick:' => 'sick.gif', ':)' => 'smile.gif', ':-)' => 'smile.gif', ':sorry:' => 'sorry.gif', ':thanks:' => 'thanks.gif', ':P' => 'tongue.gif', ':p' => 'tongue.gif', ':-P' => 'tongue.gif', ':-p' => 'tongue.gif', ':wave:' => 'wave.gif', ';-)' => 'wink.gif', ':wink:' => 'wink.gif', ':creepy:' => 'creepy.gif', ':worried:' => 'worried.gif', ':wtf:' => 'wtf.gif', ':wub:' => 'wub.gif', ); private $NoImg = 0; // If images should be turned into URLs private $Levels = 0; /** * Used to detect and disable parsing (e.g. TOC) within quotes * @var int $InQuotes */ private $InQuotes = 0; /** * Array of headlines for Table Of Contents (TOC) * @var array $HeadLines */ private $Headlines; /** * Counter for making headline URLs unique * @var int $HeadLines */ private $HeadlineID = 0; /** * Depth * @var array $HeadlineLevels */ private $HeadlineLevels = array('1', '2', '3', '4'); /** * TOC enabler * @var bool $TOC */ private $TOC; /** * @param bool $TOC When used, will enabled TOC */ public function __construct ($TOC = false) { $this->TOC = (bool) $TOC; foreach($this->Smileys as $Key=>$Val) { $this->Smileys[$Key] = '

'; } reset($this->Smileys); } /** * Output BBCode as XHTML * @param string $Str BBCode text * @param bool $OutputTOC Ouput TOC near (above) text * @param int $Min See {@link parse_toc} * @return string */ public function full_format ($Str, $OutputTOC = true, $Min = 3) { $Str = display_str($Str); $this->Headlines = array(); //Inline links $URLPrefix = '(\[url\]|\[url\=|\[img\=|\[img\])'; $Str = preg_replace('/'.$URLPrefix.'\s+/i', '$1', $Str); $Str = preg_replace('/(?TOC) { $Str = preg_replace('/(\={5})([^=].*)\1/i', '[headline=4]$2[/headline]', $Str); $Str = preg_replace('/(\={4})([^=].*)\1/i', '[headline=3]$2[/headline]', $Str); $Str = preg_replace('/(\={3})([^=].*)\1/i', '[headline=2]$2[/headline]', $Str); $Str = preg_replace('/(\={2})([^=].*)\1/i', '[headline=1]$2[/headline]', $Str); } else { $Str = preg_replace('/(\={4})([^=].*)\1/i', '[inlinesize=3]$2[/inlinesize]', $Str); $Str = preg_replace('/(\={3})([^=].*)\1/i', '[inlinesize=5]$2[/inlinesize]', $Str); $Str = preg_replace('/(\={2})([^=].*)\1/i', '[inlinesize=7]$2[/inlinesize]', $Str); } $Str = $this->parse($Str); $HTML = $this->to_html($Str); $HTML = nl2br($HTML); if ($this->TOC && $OutputTOC) $HTML = $this->parse_toc($Min) . $HTML; return $HTML; } public function strip_bbcode ($Str) { $Str = display_str($Str); //Inline links $Str = preg_replace('/(?parse($Str); $Str = $this->raw_text($Str); $Str = nl2br($Str); return $Str; } private function valid_url ($Str, $Extension = '', $Inline = false) { $Regex = '/^'; $Regex .= '(https?|ftps?|irc):\/\/'; // protocol $Regex .= '(\w+(:\w+)?@)?'; // user:pass@ $Regex .= '('; $Regex .= '(([0-9]{1,3}\.){3}[0-9]{1,3})|'; // IP or... $Regex .= '(([a-z0-9\-\_]+\.)+\w{2,6})'; // sub.sub.sub.host.com $Regex .= ')'; $Regex .= '(:[0-9]{1,5})?'; // port $Regex .= '\/?'; // slash? $Regex .= '(\/?[0-9a-z\-_.,&=@~%\/:;()+|!#]+)*'; // /file if(!empty($Extension)) { $Regex.=$Extension; } // query string if ($Inline) { $Regex .= '(\?([0-9a-z\-_.,%\/\@~&=:;()+*\^$!#|?]|\[\d*\])*)?'; } else { $Regex .= '(\?[0-9a-z\-_.,%\/\@[\]~&=:;()+*\^$!#|?]*)?'; } $Regex .= '(#[a-z0-9\-_.,%\/\@[\]~&=:;()+*\^$!]*)?'; // #anchor $Regex .= '$/i'; return preg_match($Regex, $Str, $Matches); } public function local_url ($Str) { $URLInfo = parse_url($Str); if(!$URLInfo) { return false; } $Host = $URLInfo['host']; // If for some reason your site does not require subdomains or contains a directory in the SITE_URL, revert to the line below. //if($Host == NONSSL_SITE_URL || $Host == SSL_SITE_URL || $Host == 'www.'.NONSSL_SITE_URL) { if(empty($URLInfo['port']) && preg_match('/(\S+\.)*'.NONSSL_SITE_URL.'/', $Host)) { $URL = $URLInfo['path']; if(!empty($URLInfo['query'])) { $URL.='?'.$URLInfo['query']; } if(!empty($URLInfo['fragment'])) { $URL.='#'.$URLInfo['fragment']; } return $URL; } else { return false; } } /* How parsing works Parsing takes $Str, breaks it into blocks, and builds it into $Array. Blocks start at the beginning of $Str, when the parser encounters a [, and after a tag has been closed. This is all done in a loop. EXPLANATION OF PARSER LOGIC 1) Find the next tag (regex) 1a) If there aren't any tags left, write everything remaining to a block and return (done parsing) 1b) If the next tag isn't where the pointer is, write everything up to there to a text block. 2) See if it's a [[wiki-link]] or an ordinary tag, and get the tag name 3) If it's not a wiki link: 3a) check it against the $this->ValidTags array to see if it's actually a tag and not [bullshit] If it's [not a tag], just leave it as plaintext and move on 3b) Get the attribute, if it exists [name=attribute] 4) Move the pointer past the end of the tag 5) Find out where the tag closes (beginning of [/tag]) 5a) Different for different types of tag. Some tags don't close, others are weird like [*] 5b) If it's a normal tag, it may have versions of itself nested inside - e.g.: [quote=bob]* [quote=joe]I am a redneck!**[/quote] Me too! ***[/quote] If we're at the position *, the first [/quote] tag is denoted by **. However, our quote tag doesn't actually close there. We must perform a loop which checks the number of opening [quote] tags, and make sure they are all closed before we find our final [/quote] tag (***). 5c) Get the contents between [open] and [/close] and call it the block. In many cases, this will be parsed itself later on, in a new parse() call. 5d) Move the pointer past the end of the [/close] tag. 6) Depending on what type of tag we're dealing with, create an array with the attribute and block. In many cases, the block may be parsed here itself. Stick them in the $Array. 7) Increment array pointer, start again (past the end of the [/close] tag) */ private function parse ($Str) { $i = 0; // Pointer to keep track of where we are in $Str $Len = strlen($Str); $Array = array(); $ArrayPos = 0; while($i<$Len) { $Block = ''; // 1) Find the next tag (regex) // [name(=attribute)?]|[[wiki-link]] $IsTag = preg_match("/((\[[a-zA-Z*#]+)(=(?:[^\n'\"\[\]]|\[\d*\])+)?\])|(\[\[[^\n\"'\[\]]+\]\])/", $Str, $Tag, PREG_OFFSET_CAPTURE, $i); // 1a) If there aren't any tags left, write everything remaining to a block if(!$IsTag) { // No more tags $Array[$ArrayPos] = substr($Str, $i); break; } // 1b) If the next tag isn't where the pointer is, write everything up to there to a text block. $TagPos = $Tag[0][1]; if($TagPos>$i) { $Array[$ArrayPos] = substr($Str, $i, $TagPos-$i); ++$ArrayPos; $i=$TagPos; } // 2) See if it's a [[wiki-link]] or an ordinary tag, and get the tag name if(!empty($Tag[4][0])) { // Wiki-link $WikiLink = true; $TagName = substr($Tag[4][0], 2, -2); $Attrib = ''; } else { // 3) If it's not a wiki link: $WikiLink = false; $TagName = strtolower(substr($Tag[2][0], 1)); //3a) check it against the $this->ValidTags array to see if it's actually a tag and not [bullshit] if(!isset($this->ValidTags[$TagName])) { $Array[$ArrayPos] = substr($Str, $i, ($TagPos-$i)+strlen($Tag[0][0])); $i=$TagPos+strlen($Tag[0][0]); ++$ArrayPos; continue; } $MaxAttribs = $this->ValidTags[$TagName]; // 3b) Get the attribute, if it exists [name=attribute] if(!empty($Tag[3][0])) { $Attrib = substr($Tag[3][0], 1); } else { $Attrib=''; } } // 4) Move the pointer past the end of the tag $i=$TagPos+strlen($Tag[0][0]); // 5) Find out where the tag closes (beginning of [/tag]) // Unfortunately, BBCode doesn't have nice standards like XHTML // [*], [img=...], and http:// follow different formats // Thus, we have to handle these before we handle the majority of tags //5a) Different for different types of tag. Some tags don't close, others are weird like [*] if($TagName == 'img' && !empty($Tag[3][0])) { //[img=...] $Block = ''; // Nothing inside this tag // Don't need to touch $i } elseif($TagName == 'inlineurl') { // We did a big replace early on to turn http:// into [inlineurl]http:// // Let's say the block can stop at a newline or a space $CloseTag = strcspn($Str, " \n\r", $i); if($CloseTag === false) { // block finishes with URL $CloseTag = $Len; } if(preg_match('/[!,.?:]+$/',substr($Str, $i, $CloseTag), $Match)) { $CloseTag -= strlen($Match[0]); } $URL = substr($Str, $i, $CloseTag); if(substr($URL, -1) == ')' && substr_count($URL, '(') < substr_count($URL, ')')) { $CloseTag--; $URL = substr($URL, 0, -1); } $Block = $URL; // Get the URL // strcspn returns the number of characters after the offset $i, not after the beginning of the string // Therefore, we use += instead of the = everywhere else $i += $CloseTag; // 5d) Move the pointer past the end of the [/close] tag. } elseif($WikiLink == true || $TagName == 'n') { // Don't need to do anything - empty tag with no closing } elseif($TagName === '*' || $TagName === '#') { // We're in a list. Find where it ends $NewLine = $i; do { // Look for \n[*] $NewLine = strpos($Str, "\n", $NewLine+1); } while($NewLine!== false && substr($Str, $NewLine+1, 3) == '['.$TagName.']'); $CloseTag = $NewLine; if($CloseTag === false) { // block finishes with list $CloseTag = $Len; } $Block = substr($Str, $i, $CloseTag-$i); // Get the list $i = $CloseTag; // 5d) Move the pointer past the end of the [/close] tag. } else { //5b) If it's a normal tag, it may have versions of itself nested inside $CloseTag = $i-1; $InTagPos = $i-1; $NumInOpens = 0; $NumInCloses = -1; $InOpenRegex = '/\[('.$TagName.')'; if($MaxAttribs>0) { $InOpenRegex.="(=[^\n'\"\[\]]+)?"; } $InOpenRegex.='\]/i'; // Every time we find an internal open tag of the same type, search for the next close tag // (as the first close tag won't do - it's been opened again) do { $CloseTag = stripos($Str, '[/'.$TagName.']', $CloseTag+1); if($CloseTag === false) { $CloseTag = $Len; break; } else { $NumInCloses++; // Majority of cases } // Is there another open tag inside this one? $OpenTag = preg_match($InOpenRegex, $Str, $InTag, PREG_OFFSET_CAPTURE, $InTagPos+1); if(!$OpenTag || $InTag[0][1]>$CloseTag) { break; } else { $InTagPos = $InTag[0][1]; $NumInOpens++; } } while($NumInOpens>$NumInCloses); // Find the internal block inside the tag $Block = substr($Str, $i, $CloseTag-$i); // 5c) Get the contents between [open] and [/close] and call it the block. $i = $CloseTag+strlen($TagName)+3; // 5d) Move the pointer past the end of the [/close] tag. } // 6) Depending on what type of tag we're dealing with, create an array with the attribute and block. switch($TagName) { case 'inlineurl': $Array[$ArrayPos] = array('Type'=>'inlineurl', 'Attr'=>$Block, 'Val'=>''); break; case 'url': $Array[$ArrayPos] = array('Type'=>'img', 'Attr'=>$Attrib, 'Val'=>$Block); if(empty($Attrib)) { // [url]http://...[/url] - always set URL to attribute $Array[$ArrayPos] = array('Type'=>'url', 'Attr'=>$Block, 'Val'=>''); } else { $Array[$ArrayPos] = array('Type'=>'url', 'Attr'=>$Attrib, 'Val'=>$this->parse($Block)); } break; case 'quote': $Array[$ArrayPos] = array('Type'=>'quote', 'Attr'=>$this->Parse($Attrib), 'Val'=>$this->parse($Block)); break; case 'img': case 'image': if(empty($Block)) { $Block = $Attrib; } $Array[$ArrayPos] = array('Type'=>'img', 'Val'=>$Block); break; case 'aud': case 'mp3': case 'audio': if(empty($Block)) { $Block = $Attrib; } $Array[$ArrayPos] = array('Type'=>'aud', 'Val'=>$Block); break; case 'user': $Array[$ArrayPos] = array('Type'=>'user', 'Val'=>$Block); break; case 'artist': $Array[$ArrayPos] = array('Type'=>'artist', 'Val'=>$Block); break; case 'torrent': $Array[$ArrayPos] = array('Type'=>'torrent', 'Val'=>$Block); break; case 'tex': $Array[$ArrayPos] = array('Type'=>'tex', 'Val'=>$Block); break; case 'rule': $Array[$ArrayPos] = array('Type'=>'rule', 'Val'=>$Block); break; case 'pre': case 'code': case 'plain': $Block = strtr($Block, array('[inlineurl]'=>'')); $Callback = function ($matches) { $n = $matches[2]; $text = ''; if ($n < 5 && $n > 0) { $e = str_repeat('=', $matches[2]+1); $text = $e . $matches[3] . $e; } return $text; }; $Block = preg_replace_callback('/\[(headline)\=(\d)\](.*?)\[\/\1\]/i', $Callback, $Block); $Block = preg_replace('/\[inlinesize\=3\](.*?)\[\/inlinesize\]/i', '====$1====', $Block); $Block = preg_replace('/\[inlinesize\=5\](.*?)\[\/inlinesize\]/i', '===$1===', $Block); $Block = preg_replace('/\[inlinesize\=7\](.*?)\[\/inlinesize\]/i', '==$1==', $Block); $Array[$ArrayPos] = array('Type'=>$TagName, 'Val'=>$Block); break; case 'hide': $Array[$ArrayPos] = array('Type'=>'hide', 'Attr'=>$Attrib, 'Val'=>$this->parse($Block)); break; case 'mature': $Array[$ArrayPos] = array('Type'=>'mature', 'Attr'=>$Attrib, 'Val'=>$this->parse($Block)); break; case '#': case '*': $Array[$ArrayPos] = array('Type'=>'list'); $Array[$ArrayPos]['Val'] = explode('['.$TagName.']', $Block); $Array[$ArrayPos]['ListType'] = $TagName === '*' ? 'ul' : 'ol'; $Array[$ArrayPos]['Tag'] = $TagName; foreach($Array[$ArrayPos]['Val'] as $Key=>$Val) { $Array[$ArrayPos]['Val'][$Key] = $this->parse(trim($Val)); } break; case 'n': $ArrayPos--; break; // n serves only to disrupt bbcode (backwards compatibility - use [pre]) default: if($WikiLink == true) { $Array[$ArrayPos] = array('Type'=>'wiki','Val'=>$TagName); } else { // Basic tags, like [b] or [size=5] $Array[$ArrayPos] = array('Type'=>$TagName, 'Val'=>$this->parse($Block)); if(!empty($Attrib) && $MaxAttribs>0) { $Array[$ArrayPos]['Attr'] = strtolower($Attrib); } } } $ArrayPos++; // 7) Increment array pointer, start again (past the end of the [/close] tag) } return $Array; } /** * Generates a navigation list for TOC * @param int $Min Minimum number of headlines required for a TOC list */ public function parse_toc ($Min = 3) { if (count($this->Headlines) > $Min) { $list = '

%1$s', $t[1], $t[2]); $level = $t[0]; $off = 0; $i++; } $list .= str_repeat('

', $level); $list .= "\n\n"; return $list; } } /** * Generates the list items and proper depth * * First check if the item should be higher than the current level * - Close the list and previous lists * * Then check if the item should go lower than the current level * - If the list doesn't open on level one, use the Offset * - Open appropriate sub lists * * Otherwise the item is on the same as level as the previous item * * @param int $ItemLevel Current item level * @param int $Level Current list level * @param str $List reference to an xHTML string * @param int $i Iterator digit * @param int $Offset If the list doesn't start at level 1 */ private function headline_level (&$ItemLevel, &$Level, &$List, $i, &$Offset) { if ($ItemLevel < $Level) { $diff = $Level - $ItemLevel; $List .= '' . str_repeat('', $diff); } elseif ($ItemLevel > $Level) { $diff = $ItemLevel - $Level; if ($Offset > 0) $List .= str_repeat('

' : ''; $List .= "\n" . '
1. '; } } private function to_html ($Array) { global $SSL; $this->Levels++; if($this->Levels>10) { return $Block['Val']; } // Hax prevention $Str = ''; foreach($Array as $Block) { if(is_string($Block)) { $Str.=$this->smileys($Block); continue; } switch($Block['Type']) { case 'b': $Str.=''.$this->to_html($Block['Val']).''; break; case 'u': $Str.=''.$this->to_html($Block['Val']).''; break; case 'i': $Str.=''.$this->to_html($Block['Val']).""; break; case 's': $Str.=''.$this->to_html($Block['Val']).''; break; case 'important': $Str.=''.$this->to_html($Block['Val']).''; break; case 'user': $Str.=''.$Block['Val'].''; break; case 'artist': $Str.=''.$Block['Val'].''; break; case 'rule': $Rule = trim(strtolower($Block['Val'])); if($Rule[0] != 'r' && $Rule[0] != 'h') { $Rule = 'r'.$Rule; } $Str.=''.preg_replace('/[aA-zZ]/', '', $Block['Val']).''; break; case 'torrent': $Pattern = '/('.NONSSL_SITE_URL.'\/torrents\.php.*[\?&]id=)?(\d+)($|&|\#).*/i'; $Matches = array(); if (preg_match($Pattern, $Block['Val'], $Matches)) { if (isset($Matches[2])) { $Groups = Torrents::get_groups(array($Matches[2]), true, true, false); if (!empty($Groups['matches'][$Matches[2]])) { $Group = $Groups['matches'][$Matches[2]]; $Str .= Artists::display_artists($Group['ExtendedArtists']).''.$Group['Name'].''; } else { $Str .= '[torrent]'.str_replace('[inlineurl]','',$Block['Val']).'[/torrent]'; } } } else { $Str .= '[torrent]'.str_replace('[inlineurl]','',$Block['Val']).'[/torrent]'; } break; case 'wiki': $Str.=''.$Block['Val'].''; break; case 'tex': $Str.=''; break; case 'plain': $Str.=$Block['Val']; break; case 'pre': $Str.='
```
'.$Block['Val'].'
```
  '; break; case 'code': $Str.=''.$Block['Val'].''; break; case 'list': $Str .= '<'.$Block['ListType'].'>'; foreach($Block['Val'] as $Line) { $Str.='
2. '.$this->to_html($Line).'