define(DOC,"[^\"]+");
// Hosts that may be redirected
$PERMITED_HOSTS=array('www.zopa.com','www.pizda.ru');
function error($title="Error",$text){
echo "\n\n";
echo "\n";
echo " | ".$title." |
|---|
\n";
echo " | ".$text." |
\n";
echo "
\n";
echo "\n\n";
exit;
}
function build_url_prefix($host){
global $PHP_SELF;
return $PHP_SELF.'?host='.urlencode($host).'&page=';
}
function build_url($host,$page,$suff=""){
if(eregi("(http|mailto|ftp):",$suff) || eregi("^#",$suff))
return $suff;
$newp = $page;
if(eregi("^/(.*)",$suff) ||
eregi("^(http|ftp)://(.*)",$suff))
$newp = $suff;
else if(eregi("/$",$page))
$newp .= $suff;
else if($suff != "")
$newp = dirname($page).'/'.$suff;
$newp = preg_replace("/\\\(['\"])/","\\1",$newp);
$newp = preg_replace("/&/","&",$newp);
$newp = urlencode($newp);
return build_url_prefix($host).$newp;
}
function build_attr($attr,$host,$page,$suff=""){
return $attr.'="'.build_url($host,$page,$suff).'"';
}
function build_css_url($host,$page,$suff=""){
return 'url("'.build_url($host,$page,$suff).'")';
}
function parse_line($host,$page,$line){
$out = $line;
if(eregi("href=\"(".DOC.")\"",$out))
$out = preg_replace('/href=\"(\S*)\"/ie','build_attr("href",$host,$page,"\\1")',$out);
if(eregi("href=(".DOC.")",$out))
$out = preg_replace('/href=(\S*)/ie','build_attr("href",$host,$page,"\\1")',$out);
if(eregi("src=\"(".DOC.")",$out))
$out = preg_replace('/src=\"(\S*)\"/ie','build_attr("src",$host,$page,"\\1")',$out);
if(!eregi("url\(\"(http|ftp):",$out) && eregi("url\(\"(".DOC.")\"\)",$out))
$out = preg_replace('/url[(]\"(\S*)\"[)]/ie','build_css_url($host,$page,"\\1")',$out);
//print htmlspecialchars($line)." -< ".htmlspecialchars($out)."
\n";
return $out;
}
$page = preg_replace("/\\\(['\"])/","\\1",$page);
$check=false;
foreach($PERMITED_HOSTS as $h){
if($h == $host){
$check=true;
break;
}
}
if($host == '' || !$check)
error('access denied',"host $host not suported");
if($page == '')
$page = '/';
if(($sock = fsockopen($host,80))){
fputs($sock,
"GET $page HTTP/1.1\r\n".
"Host: $host\r\n".
"User-Agent: Mozilla/5.0\r\n".
"Accept: text/html,text/plain,image/png,image/jpeg,image/gif;q=0.2,*/*;q=0.1\r\n".
"Accept-Language: en-us,ru;q=0.7,he;q=0.3\r\n".
"Connection: close\r\n".
($PHP_AUTH_USER && $PHP_AUTH_PW?
"Authorization: Basic ".base64_encode($PHP_AUTH_USER.':'.$PHP_AUTH_PW)."\r\n":'').
"\r\n\r\n");
$contenttype = '';
$contentlength = '';
$auth = '';
$authhdr = '';
while(($out = fgets($sock,1024)) != ""){
if(!eregi("^HTTP",$out) && !eregi("^[a-z0-9\.\-]*:",$out))
break;
if(eregi('^HTTP/1.1 401',$out))
$auth = 1;
else if(eregi("^HTTP/1.1 301",$out)){
header('Location: '.build_url($host,$page).'/');
}
if(eregi("^HTTP/1.1 404",$out))
header('HTTP/1.0 404 Not Found');
if(eregi("^Content-Type:",$out))
$contenttype = $out;
else if(eregi("^Content-Length:",$out))
$contentlength = $out;
else if(eregi("^WWW-Authenticate:",$out,$m))
$authhdr = $out;
}
header($contenttype);
if($contentlength)
header($contenttype);
if($auth){
if($authhdr)
header($authhdr);
else
header('WWW-Authenticate: Basic realm="Autentication Needed"');
header('HTTP/1.1 401 Unauthorized');
}
if(eregi("text/html",$contenttype)){
if($contentlength){
while(($out = fgets($sock,1024)) != ''){
print parse_line($host,$page,$out);
}
}
else{
while(($out = fgets($sock,1024)) != ''){
$bytes = hexdec(chop($out));
if($bytes > 0){
$out = @fread($sock,$bytes);
// print "bytes = $bytes
\n";
//$arr = explode(chr(10),$out);
$arr = preg_split('//',$out);
$line = '';
foreach($arr as $c){
if($c == "\n"){
print parse_line($host,$page,$line.$c);
$line = '';
}
else
$line .= $c;
}
if($line != '')
print parse_line($host,$page,$line);
// $arr = explode(chr(10),$out);
// foreach($arr as $line)
// print parse_line($host,$page,$line)."\n";
}
}
}
}
else if(eregi("text/css",$contenttype)){
while(($out = fgets($sock,1024)) != ''){
print parse_line($host,$page,$out);
}
}
else{
header('Content-Disposition:filename="'.urldecode(basename($page)).'"');
while(($out = fread($sock,1024)) != ""){
print $out;
}
}
fclose($sock);
}
else{
error('access denied','');
}
?>