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<?php
// vim: foldmethod=marker
/**
* The MIT License
*
* Copyright (c) 2007 Andy Smith
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files ( the "Software" ), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
namespace MediaWiki\Extensions\OAuth\Lib;
use MediaWiki\Extensions\OAuth\Lib\OAuthSignatureMethod;
use MediaWiki\Extensions\OAuth\Lib\OAuthUtil;
/**
* The HMAC-SHA1 signature method uses the HMAC-SHA1 signature algorithm as defined in [RFC2104]
* where the Signature Base String is the text and the key is the concatenated values ( each first
* encoded per Parameter Encoding ) of the Consumer Secret and Token Secret, separated by an '&'
* character ( ASCII code 38 ) even if empty.
* - Chapter 9.2 ( "HMAC-SHA1" )
*/
class OAuthSignatureMethod_HMAC_SHA1 extends OAuthSignatureMethod {
function get_name() {
return "HMAC-SHA1";
}
public function build_signature( $request, $consumer, $token ) {
$base_string = $request->get_signature_base_string();
$this->logger->debug( __METHOD__ . ": Base string: '$base_string'" );
$request->base_string = $base_string;
$key_parts = array(
$consumer->secret,
( $token ) ? $token->secret : ""
);
$key_parts = OAuthUtil::urlencode_rfc3986( $key_parts );
$key = implode( '&', $key_parts );
$this->logger->debug( __METHOD__ . ": HMAC Key: '$key'" );
return base64_encode( hash_hmac( 'sha1', $base_string, $key, true ) );
}
}
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