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yongcncn
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如何实现模拟http登陆

如题
用PHP如何实现模拟http登陆
下面的类好像不行

<?php
function readHTTPDigestAuthenticatedFile($host,$file,$username,$password)
{
if (!$fp=fsockopen($host,80, $errno, $errstr, 15))
   return false;

//first do the non-authenticated header so that the server
//sends back a 401 error containing its nonce and opaque
$out = "GET /$file HTTP/1.1\r\n";
   $out .= "Host: $host\r\n";
   $out .= "Connection: Close\r\n\r\n";

   fwrite($fp, $out);

//read the reply and look for the WWW-Authenticate element
while (!feof($fp))
{
   $line=fgets($fp, 512);

   if (strpos($line,"WWW-Authenticate:")!==false)
         $authline=trim(substr($line,18));
}

fclose($fp);

//split up the WWW-Authenticate string to find digest-realm,nonce and opaque values
//if qop value is presented as a comma-seperated list (e.g auth,auth-int) then it won't be retrieved correctly
//but that doesn't matter because going to use 'auth' anyway
$authlinearr=explode(",",$authline);
$autharr=array();

foreach ($authlinearr as $el)
{
   $elarr=explode("=",$el);
   //the substr here is used to remove the double quotes from the values
   $autharr[trim($elarr[0])]=substr($elarr[1],1,strlen($elarr[1])-2);
}

foreach ($autharr as $k=>$v)
   echo("$k ==> $v\r\n");

//these are all the vals required from the server
$nonce=$autharr['nonce'];
$opaque=$autharr['opaque'];
$drealm=$autharr['Digest realm'];

//client nonce can be anything since this authentication session is not going to be persistent
//likewise for the cookie - just call it MyCookie
$cnonce="sausages";

//calculate the hashes of A1 and A2 as described in RFC 2617
$a1="$username

drealm

password";$a2="GET:/$file";
$ha1=md5($a1);$ha2=md5($a2);

//calculate the response hash as described in RFC 2617
$concat = $ha1.':'.$nonce.':00000001:'.$cnonce.':auth:'.$ha2;
$response=md5($concat);

//put together the Authorization Request Header
$out = "GET /$file HTTP/1.1\r\n";
   $out .= "Host: $host\r\n";
$out .= "Connection: Close\r\n";
$out .= "Cookie: cookie=MyCookie\r\n";
$out .= "Authorization: Digest username=\"$username\", realm=\"$drealm\", qop=\"auth\", algorithm=\"MD5\", uri=\"/$file\", nonce=\"$nonce\", nc=00000001, cnonce=\"$cnonce\", opaque=\"$opaque\", response=\"$response\"\r\n\r\n";

if (!$fp=fsockopen($host,80, $errno, $errstr, 15))
   return false;

fwrite($fp, $out);

//read in a string which is the contents of the required file
while (!feof($fp))
{
   $str.=fgets($fp, 512);
}

fclose($fp);

return $str;
}

?>

[ 本帖最后由 yongcncn 于 2008-7-4 08:55 PM 编辑 ]