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4 years ago

I can't get the second example to work. The regular expression is beyond the scope of this programmer so I rewrote it as seven easy-to-read regular expressions and it works.



Here's the whole function http_digest_parse() that works for me:



<?php



// function to parse the http auth header

function http_digest_parse($txt) {



// protect against missing data

/*

$needed_parts = array('nonce'=>1, 'nc'=>1, 'cnonce'=>1, 'qop'=>1, 'username'=>1, 'uri'=>1, 'response'=>1);

$data = array();



preg_match_all('@(\w+)=(?:([\'"])([^\2]+)\2|([^\s,]+))@', $txt, $matches, PREG_SET_ORDER);



foreach ($matches as $m) {

    $data[$m[1]] = $m[3] ? $m[3] : $m[4];

    unset($needed_parts[$m[1]]);

}

*/



$res = preg_match("/username=\"([^\"]+)\"/i", $txt, $match);

$data['username'] = $match[1];

$res = preg_match('/nonce=\"([^\"]+)\"/i', $txt, $match);

$data['nonce'] = $match[1];

$res = preg_match('/nc=([0-9]+)/i', $txt, $match);

$data['nc'] = $match[1];

$res = preg_match('/cnonce=\"([^\"]+)\"/i', $txt, $match);

$data['cnonce'] = $match[1];

$res = preg_match('/qop=([^,]+)/i', $txt, $match);

$data['qop'] = $match[1];

$res = preg_match('/uri=\"([^\"]+)\"/i', $txt, $match);

$data['uri'] = $match[1];

$res = preg_match('/response=\"([^\"]+)\"/i', $txt, $match);

$data['response'] = $match[1];



//return $needed_parts ? false : $data;

return $data;



}



?>
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