5 function htmlparse($data)
8 if function finds anything unsafe,it will return
9 FALSE and saves a reason info global variable $htmlparse
14 $data = StrToLower(" ".$data);
16 // tags, I don
\14 need to close
17 $unpaired = Array('br'=>1,
18 'br/'=>1, // fix later ;)
26 $allowed = Array('b'=>1,
52 'br/'=>1, // fix later
76 this part will go trought string and will ensure, if all tags are closed
79 $tok = StrTok($data, '<');
81 while(!($tok === FALSE)){
82 if(!StrStr($tok,'>')):
83 $htmlparse = 'Chyba HTML syntaxe!';
84 //$htmlparse = 'Wrong HTML syntax!';
86 elseif(StrStr($tok,"<")):
87 $htmlparse = 'Chyba HTML syntaxe!';
88 //$htmlparse = 'Wrong HTML syntax!';
95 main part of the function - it will check allowed tags, some parameters and so on...
98 $tok = StrTok($data, '<');
101 while(!($tok === FALSE)):
103 $tag = Split('>',$tok,2);
104 $attrib = Split("[[:space:]>]",$tag[0],2);
105 if($allowed[$attrib[0]] != 1 && $allowed[SubStr($attrib[0],1)] != 1): // if tag isn
\14 in allowed array
106 $htmlparse = 'Zakazany tag <'.$attrib[0].'>!';
107 //$htmlparse = 'Forbidden tag <'.$attrib[0].'>!';
110 if('/'.$tags[$j] == $attrib[0]): // closing tag for last opening tag
111 if($tags[$j] == 'table' && $opened_tables > 0):
115 elseif($tags[$j] == 'xmp'): // XMP tag...ignore eny other tags between them
117 if(SubStr($attrib[0],0,1) == '/' && $unpaired[$tags[$j]]): // do I need to close the tag?
120 elseif(SubStr($attrib[0],0,1) == '/'): // am I closing something, I didn
\14 open?
121 $htmlparse = 'Chyba u tagu <'.$tag[0].'>! Zavirate tag, ktery jste neotevrel!';
122 //$htmlparse = 'Error near tag <'.$tag[0].'>! Closing tag, that wasn
\14 opened!';
124 elseif(Ereg(' on',' '.$attrib[1])): // temporary solution for pernament problem...and it isn
\14 suicide
125 $htmlparse = 'JavaScript je na hovno!';
126 //$htmlparse = 'JavaScript sux!';
128 elseif(Ereg(' style',' '.$attrib[1])): // styles are forbidden - don
\14 look at me THAT way ;)
129 $htmlparse = 'Ten "style" se mi tam nezda!';
130 //$htmlparse = '"styles" are forbidden!';
132 elseif(Ereg('://',' '.$attrib[1]) && $attrib[0] != "img" && $attrib[0] != "a"): // adresses in attributes (except A and IMG tags) are forbidden
133 $htmlparse = 'Neco se mi tam nelibi! To je hlaska HTML validace - nejedna se o nejakou cenzuru ;)';
134 //$htmlparse = 'Forbidden usage of adresses in tags!';
136 elseif((SubStr_Count($attrib[1],'"')%2) > 0): // are quotes closed? can do mess if they aren
\14
137 $htmlparse = 'Neuzavrel jste uvozovky uvnitr tagu <'.$attrib[0].'>!';
138 //$htmlparse = 'Close quotes in tag <'.$tag[0].'>!';
140 elseif(Ereg('\?',$attrib[1]) && $attrib[0] == 'img'): // don
\14 allow parameters in IMG tags
141 $htmlparse = 'Chyba u tagu <img> - nejsou povoleny parametry v adrese!';
142 //$htmlparse = 'Error in tag <img> - parameters in image adresses are forbidden!';
144 elseif(($attrib[0] == 'td' || $attrib[0] == 'tr') && $opened_tables == 0):
145 $htmlparse = 'Strkej si ty tagy do vlastni tabulky, jo?';
147 elseif($attrib[0] == 'table'):
151 $tags[$j] = $attrib[0];
159 just check, if all tags are properly closed
163 if($unpaired[$tags[$j]]):
167 $htmlparse = 'Neuzavrel jste tag <'.$tags[$j].'>!';
168 //$htmlparse = 'Tag <'.$tags[$j].'> wasn
\14 closed correctly!';