getFixedHtml($dirty_html); // ------------------------------------------------- Class HtmlFixer { public $dirtyhtml; public $fixedhtml; public $allowed_styles; // inline styles array of allowed css (if empty means ALL allowed) private $matrix; // array used to store nodes public $debug; private $fixedhtmlDisplayCode; public function __construct() { $this->dirtyhtml = ""; $this->fixedhtml = ""; $this->debug = false; $this->fixedhtmlDisplayCode = ""; $this->allowed_styles = array(); } public function getFixedHtml($dirtyhtml) { $c = 0; $this->dirtyhtml = $dirtyhtml; $this->fixedhtml = ""; $this->fixedhtmlDisplayCode = ""; if (is_array($this->matrix)) unset($this->matrix); $errorsFound=0; while ($c<10) { /* iterations, every time it's getting better... */ if ($c>0) $this->dirtyhtml = $this->fixedxhtml; $errorsFound = $this->charByCharJob(); if (!$errorsFound) $c=10; // if no corrections made, stops iteration $this->fixedxhtml=str_replace('','',$this->fixedxhtml); $this->fixedxhtml=str_replace('','',$this->fixedxhtml); $this->fixedxhtml = $this->removeSpacesAndBadTags($this->fixedxhtml); $c++; } return $this->fixedxhtml; } private function fixStrToLower($m){ /* $m is a part of the tag: make the first part of attr=value lowercase */ $right = strstr($m, '='); $left = str_replace($right,'',$m); return strtolower($left).$right; } private function fixQuotes($s){ $q = "\"";// thanks to emmanuel@evobilis.com if (!stristr($s,"=")) return $s; $out = $s; preg_match_all("|=(.*)|",$s,$o,PREG_PATTERN_ORDER); for ($i = 0; $i< count ($o[1]); $i++) { $t = trim ( $o[1][$i] ) ; $lc=""; if ($t!="") { if ($t[strlen($t)-1]==">") { $lc= ($t[strlen($t)-2].$t[strlen($t)-1])=="/>" ? "/>" : ">" ; $t=substr($t,0,-1); } //missing " or ' at the beginning if (($t[0]!="\"")&&($t[0]!="'")) $out = str_replace( $t, "\"".$t,$out); else $q=$t[0]; //missing " or ' at the end if (($t[strlen($t)-1]!="\"")&&($t[strlen($t)-1]!="'")) $out = str_replace( $t.$lc, $t.$q.$lc,$out); } } return $out; } private function fixTag($t){ /* remove non standard attributes and call the fix for quoted attributes */ $t = preg_replace ( array( '/borderColor=([^ >])*/i', '/border=([^ >])*/i' ), array( '', '' ) , $t); $ar = explode(" ",$t); $nt = ""; for ($i=0;$ifixStrToLower($ar[$i]); if (stristr($ar[$i],"=")) $ar[$i] = $this->fixQuotes($ar[$i]); // thanks to emmanuel@evobilis.com //if (stristr($ar[$i],"=") && !stristr($ar[$i],"=\"")) $ar[$i] = $this->fixQuotes($ar[$i]); $nt.=$ar[$i]." "; } $nt=preg_replace("/<( )*/i","<",$nt); $nt=preg_replace("/( )*>/i",">",$nt); return trim($nt); } private function extractChars($tag1,$tag2,$tutto) { /*extract a block between $tag1 and $tag2*/ if (!stristr($tutto, $tag1)) return ''; $s=stristr($tutto,$tag1); $s=substr( $s,strlen($tag1)); if (!stristr($s,$tag2)) return ''; $s1=stristr($s,$tag2); return substr($s,0,strlen($s)-strlen($s1)); } private function mergeStyleAttributes($s) { // // merge many style definitions in the same tag in just one attribute style // $x = ""; $temp = ""; $c = 0; while(stristr($s,"style=\"")) { $temp = $this->extractChars("style=\"","\"",$s); if ($temp=="") { // missing closing quote! add missing quote. return preg_replace("/(\/)?>/i","\"\\1>",$s); } if ($c==0) $s = str_replace("style=\"".$temp."\"","##PUTITHERE##",$s); $s = str_replace("style=\"".$temp."\"","",$s); if (!preg_match("/;$/i",$temp)) $temp.=";"; $x.=$temp; $c++; } if (count($this->allowed_styles)>0) { // keep only allowed styles by Martin Vool 2010-04-19 $check=explode(';', $x); $x=""; foreach($check as $chk){ foreach($this->allowed_styles as $as) if(stripos($chk, $as) !== False) { $x.=$chk.';'; break; } } } if ($c>0) $s = str_replace("##PUTITHERE##","style=\"".$x."\"",$s); return $s; } private function fixAutoclosingTags($tag,$tipo=""){ /* metodo richiamato da fix() per aggiustare i tag auto chiudenti (
) */ if (in_array( $tipo, array ("img","input","br","hr")) ) { if (!stristr($tag,'/>')) $tag = str_replace('>','/>',$tag ); } return $tag; } private function getTypeOfTag($tag) { $tag = trim(preg_replace("/[\>\<\/]/i","",$tag)); $a = explode(" ",$tag); return $a[0]; } private function checkTree() { // return the number of errors found $errorsCounter = 0; for ($i=1;$imatrix);$i++) { $flag=false; if ($this->matrix[$i]["tagType"]=="div") { //div cannot stay inside a p, b, etc. $parentType = $this->matrix[$this->matrix[$i]["parentTag"]]["tagType"]; if (in_array($parentType, array("p","b","i","font","u","small","strong","em"))) $flag=true; } if (in_array( $this->matrix[$i]["tagType"], array( "b", "strong" )) ) { //b cannot stay inside b o strong. $parentType = $this->matrix[$this->matrix[$i]["parentTag"]]["tagType"]; if (in_array($parentType, array("b","strong"))) $flag=true; } if (in_array( $this->matrix[$i]["tagType"], array ( "i", "em") )) { //i cannot stay inside i or em $parentType = $this->matrix[$this->matrix[$i]["parentTag"]]["tagType"]; if (in_array($parentType, array("i","em"))) $flag=true; } if ($this->matrix[$i]["tagType"]=="p") { $parentType = $this->matrix[$this->matrix[$i]["parentTag"]]["tagType"]; if (in_array($parentType, array("p","b","i","font","u","small","strong","em"))) $flag=true; } if ($this->matrix[$i]["tagType"]=="table") { $parentType = $this->matrix[$this->matrix[$i]["parentTag"]]["tagType"]; if (in_array($parentType, array("p","b","i","font","u","small","strong","em","tr","table"))) $flag=true; } if ($flag) { $errorsCounter++; if ($this->debug) echo "
Found a ".$this->matrix[$i]["tagType"]." tag inside a ".htmlspecialchars($parentType)." tag at node $i: MOVED
"; $swap = $this->matrix[$this->matrix[$i]["parentTag"]]["parentTag"]; if ($this->debug) echo "
Every node that has parent ".$this->matrix[$i]["parentTag"]." will have parent ".$swap."
"; $this->matrix[$this->matrix[$i]["parentTag"]]["tag"]=""; $this->matrix[$this->matrix[$i]["parentTag"]]["tagType"]=""; $hoSpostato=0; for ($j=count($this->matrix)-1;$j>=$i;$j--) { if ($this->matrix[$j]["parentTag"]==$this->matrix[$i]["parentTag"]) { $this->matrix[$j]["parentTag"] = $swap; $hoSpostato=1; } } } } return $errorsCounter; } private function findSonsOf($parentTag) { // build correct html recursively $out= ""; for ($i=1;$imatrix);$i++) { if ($this->matrix[$i]["parentTag"]==$parentTag) { if ($this->matrix[$i]["tag"]!="") { $out.=$this->matrix[$i]["pre"]; $out.=$this->matrix[$i]["tag"]; $out.=$this->matrix[$i]["post"]; } else { $out.=$this->matrix[$i]["pre"]; $out.=$this->matrix[$i]["post"]; } if ($this->matrix[$i]["tag"]!="") { $out.=$this->findSonsOf($i); if ($this->matrix[$i]["tagType"]!="") { //write the closing tag if (!in_array($this->matrix[$i]["tagType"], array ( "br","img","hr","input"))) $out.="matrix[$i]["tagType"].">"; } } } } return $out; } private function findSonsOfDisplayCode($parentTag) { //used for debug $out= ""; for ($i=1;$imatrix);$i++) { if ($this->matrix[$i]["parentTag"]==$parentTag) { $out.= "
{$i}:"; if ($this->matrix[$i]["tag"]!="") { if ($this->matrix[$i]["pre"]!="") $out.=htmlspecialchars($this->matrix[$i]["pre"])."
"; $out.="".htmlspecialchars($this->matrix[$i]["tag"])."{$i} ".$this->matrix[$i]["tagType"].""; $out.=htmlspecialchars($this->matrix[$i]["post"]); } else { if ($this->matrix[$i]["pre"]!="") $out.=htmlspecialchars($this->matrix[$i]["pre"])."
"; $out.=htmlspecialchars($this->matrix[$i]["post"]); } if ($this->matrix[$i]["tag"]!="") { $out.="
".$this->findSonsOfDisplayCode($i)."
\n"; if ($this->matrix[$i]["tagType"]!="") { if (($this->matrix[$i]["tagType"]!="br") && ($this->matrix[$i]["tagType"]!="img") && ($this->matrix[$i]["tagType"]!="hr")&& ($this->matrix[$i]["tagType"]!="input")) $out.="
".htmlspecialchars("matrix[$i]["tagType"].">")."{$i} ".$this->matrix[$i]["tagType"]."
"; } } $out.="
\n"; } } return $out; } private function removeSpacesAndBadTags($s) { $i=0; while ($i<10) { $i++; $s = preg_replace ( array( '/[\r\n]/i', '/ /i', '/])*>( )*\s*<\/p>/i', '/])*>( )*\s*<\/span>/i', '/])*>( )*\s*<\/strong>/i', '/])*>( )*\s*<\/em>/i', '/])*>( )*\s*<\/font>/i', '/])*>( )*\s*<\/small>/i', '/<\?xml:namespace([^>])*><\/\?xml:namespace>/i', '/<\?xml:namespace([^>])*\/>/i', '/class=\"MsoNormal\"/i', '/<\/o:p>/i', '/])*>/i', '//', '/<\?(.|\s)*?\?>/' ), array( ' ', ' ', '', '', '', '', '', '', '', '', '', ' ', '', '' ) , trim($s)); } return $s; } private function charByCharJob() { $s = $this->removeSpacesAndBadTags($this->dirtyhtml); if ($s=="") return; $s = "".$s.""; $contenuto = ""; $ns = ""; $i=0; $j=0; $indexparentTag=0; $padri=array(); array_push($padri,"0"); $this->matrix[$j]["tagType"]=""; $this->matrix[$j]["tag"]=""; $this->matrix[$j]["parentTag"]="0"; $this->matrix[$j]["pre"]=""; $this->matrix[$j]["post"]=""; $tags=array(); while($i") { /* $tag contains a tag <...chars...> let's clean it! */ $tag = $this->fixTag($tag); $tagType = $this->getTypeOfTag($tag); $tag = $this->fixAutoclosingTags($tag,$tagType); $tag = $this->mergeStyleAttributes($tag); if (!isset($tags[$tagType])) $tags[$tagType]=0; $tagok=true; if (($tags[$tagType]==0)&&(stristr($tag,'/'.$tagType.'>'))) { $tagok=false; /* there is a close tag without any open tag, I delete it */ if ($this->debug) echo "
Found a closing tag ".htmlspecialchars($tag)." at char $i without open tag: REMOVED
"; } } if ($tagok) { $j++; $this->matrix[$j]["pre"]=""; $this->matrix[$j]["post"]=""; $this->matrix[$j]["parentTag"]=""; $this->matrix[$j]["tag"]=""; $this->matrix[$j]["tagType"]=""; if (stristr($tag,'/'.$tagType.'>')) { /* it's the closing tag */ $ind = array_pop($padri); $this->matrix[$j]["post"]=$contenuto; $this->matrix[$j]["parentTag"]=$ind; $tags[$tagType]--; } else { if (@preg_match("/".$tagType."\/>$/i",$tag)||preg_match("/\/>/i",$tag)) { /* it's a autoclosing tag */ $this->matrix[$j]["tagType"]=$tagType; $this->matrix[$j]["tag"]=$tag; $indexparentTag = array_pop($padri); array_push($padri,$indexparentTag); $this->matrix[$j]["parentTag"]=$indexparentTag; $this->matrix[$j]["pre"]=$contenuto; $this->matrix[$j]["post"]=""; } else { /* it's a open tag */ $tags[$tagType]++; $this->matrix[$j]["tagType"]=$tagType; $this->matrix[$j]["tag"]=$tag; $indexparentTag = array_pop($padri); array_push($padri,$indexparentTag); array_push($padri,$j); $this->matrix[$j]["parentTag"]=$indexparentTag; $this->matrix[$j]["pre"]=$contenuto; $this->matrix[$j]["post"]=""; } } } } else { /* content of the tag */ $ns.=$s[$i]; } $i++; } /* remove not valid tags */ for ($eli=$j+1;$elimatrix);$eli++) { $this->matrix[$eli]["pre"]=""; $this->matrix[$eli]["post"]=""; $this->matrix[$eli]["parentTag"]=""; $this->matrix[$eli]["tag"]=""; $this->matrix[$eli]["tagType"]=""; } $errorsCounter = $this->checkTree(); // errorsCounter contains the number of removed tags $this->fixedxhtml=$this->findSonsOf(0); // build html fixed if ($this->debug) { $this->fixedxhtmlDisplayCode=$this->findSonsOfDisplayCode(0); echo ""; echo ""; echo ""; echo ""; echo ""; echo ""; echo ""; for ($k=0;$k<=$j;$k++) { echo ""; echo ""; echo ""; echo ""; echo ""; echo ""; } echo "
node idpretagpostparentTagtipo
$k ".htmlspecialchars($this->matrix[$k]["pre"])." ".htmlspecialchars($this->matrix[$k]["tag"])." ".htmlspecialchars($this->matrix[$k]["post"])." ".$this->matrix[$k]["parentTag"]." ".$this->matrix[$k]["tagType"]."
"; echo "
{$j}
\n\n\n\n".$this->fixedxhtmlDisplayCode; } return $errorsCounter; } } ?>