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 ;)
27 $allowed = Array('b'=>1,
53 'br/'=>1, // fix later
77 this part will go trought string and will ensure, if all tags are closed
80 $tok = StrTok($data, '<');
82 while(!($tok === FALSE)){
83 if(!StrStr($tok,'>')):
84 $htmlparse = 'Chyba HTML syntaxe!';
85 //$htmlparse = 'Wrong HTML syntax!';
87 elseif(StrStr($tok,"<")):
88 $htmlparse = 'Chyba HTML syntaxe!';
89 //$htmlparse = 'Wrong HTML syntax!';
96 main part of the function - it will check allowed tags, some parameters and so on...
99 $tok = StrTok($data, '<');
102 while(!($tok === FALSE)):
104 $tag = Split('>',$tok,2);
105 $attrib = Split("[[:space:]>]",$tag[0],2);
106 if($allowed[$attrib[0]] != 1 && $allowed[SubStr($attrib[0],1)] != 1): // if tag isn
\14 in allowed array
107 $htmlparse = 'Zakazany tag <'.$attrib[0].'>!';
108 //$htmlparse = 'Forbidden tag <'.$attrib[0].'>!';
111 if('/'.$tags[$j] == $attrib[0]): // closing tag for last opening tag
112 if($tags[$j] == 'table' && $opened_tables > 0):
116 elseif($tags[$j] == 'xmp'): // XMP tag...ignore eny other tags between them
118 if(SubStr($attrib[0],0,1) == '/' && $unpaired[$tags[$j]]): // do I need to close the tag?
121 elseif(SubStr($attrib[0],0,1) == '/'): // am I closing something, I didn
\14 open?
122 $htmlparse = 'Chyba u tagu <'.$tag[0].'>! Zavirate tag, ktery jste neotevrel!';
123 //$htmlparse = 'Error near tag <'.$tag[0].'>! Closing tag, that wasn
\14 opened!';
125 elseif(Ereg(' on',' '.$attrib[1])): // temporary solution for pernament problem...and it isn
\14 suicide
126 $htmlparse = 'JavaScript je na hovno!';
127 //$htmlparse = 'JavaScript sux!';
129 elseif(Ereg('/on',' '.$attrib[1])): // temporary solution for pernament problem...and it isn
\14 suicide
130 $htmlparse = 'z bezpecnostnych dovodov nieje povolene vkladat do tagov retazec "/on"';
135 elseif(Ereg(' style',' '.$attrib[1])): // styles are forbidden - don
\14 look at me THAT way ;)
136 $htmlparse = 'Ten "style" se mi tam nezda!';
137 //$htmlparse = '"styles" are forbidden!';
140 elseif(Ereg('://',' '.$attrib[1]) && $attrib[0] != "img" && $attrib[0] != "a"): // adresses in attributes (except A and IMG tags) are forbidden
141 $htmlparse = 'Neco se mi tam nelibi! To je hlaska HTML validace - nejedna se o nejakou cenzuru ;)';
142 //$htmlparse = 'Forbidden usage of adresses in tags!';
144 elseif((SubStr_Count($attrib[1],'"')%2) > 0): // are quotes closed? can do mess if they aren
\14
145 $htmlparse = 'Neuzavrel jste uvozovky uvnitr tagu <'.$attrib[0].'>!';
146 //$htmlparse = 'Close quotes in tag <'.$tag[0].'>!';
148 elseif(Ereg('\?',$attrib[1]) && $attrib[0] == 'img'): // don
\14 allow parameters in IMG tags
149 $htmlparse = 'Chyba u tagu <img> - nejsou povoleny parametry v adrese!';
150 //$htmlparse = 'Error in tag <img> - parameters in image adresses are forbidden!';
152 elseif(($attrib[0] == 'td' || $attrib[0] == 'tr') && $opened_tables == 0):
153 $htmlparse = 'Strkej si ty tagy do vlastni tabulky, jo?';
155 elseif($attrib[0] == 'table'):
159 $tags[$j] = $attrib[0];
167 just check, if all tags are properly closed
171 if($unpaired[$tags[$j]]):
175 $htmlparse = 'Neuzavrel jste tag <'.$tags[$j].'>!';
176 //$htmlparse = 'Tag <'.$tags[$j].'> wasn
\14 closed correctly!';