/usr/share/php/Horde/Oauth/SignatureMethod/HmacSha1.php is in php-horde-oauth 2.0.4-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/**
* Copyright 2008-2017 Horde LLC (http://www.horde.org/)
*
* @author Chuck Hagenbuch <chuck@horde.org>
* @license http://www.horde.org/licenses/bsd BSD
* @category Horde
* @package Oauth
*/
/**
* OAuth HMAC-SHA1 signature method
*
* @author Chuck Hagenbuch <chuck@horde.org>
* @license http://www.horde.org/licenses/bsd BSD
* @category Horde
* @package Oauth
*/
class Horde_Oauth_SignatureMethod_HmacSha1 extends Horde_Oauth_SignatureMethod
{
public function getName()
{
return 'HMAC-SHA1';
}
public function sign($request, $consumer, $token)
{
$baseString = $request->getSignatureBaseString();
$key_parts = array(
$consumer->secret,
($token) ? $token->secret : ''
);
$key_parts = array_map(array('Horde_Oauth_Utils','urlencodeRfc3986'), $key_parts);
$key = implode('&', $key_parts);
return base64_encode(hash_hmac('sha1', $baseString, $key, true));
}
}
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