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Current Path: /home/cbholdings/pasukulu/lib/ltiprovider/src/OAuth

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📁 ..
📄 OAuthConsumer.php(572 B)
📄 OAuthDataStore.php(937 B)
📄 OAuthException.php(286 B)
📄 OAuthRequest.php(8.2 KB)
📄 OAuthServer.php(6.73 KB)
📄 OAuthSignatureMethod.php(1.75 KB)
📄 OAuthSignatureMethod_HMAC_SHA1.php(1.2 KB)
📄 OAuthSignatureMethod_HMAC_SHA256.php(1.27 KB)
📄 OAuthToken.php(958 B)
📄 OAuthUtil.php(6.11 KB)

Editing: OAuthSignatureMethod_HMAC_SHA256.php

<?php

namespace IMSGlobal\LTI\OAuth;

/**
 * Class to represent an %OAuth HMAC_SHA256 signature method
 *
 * @author  Stephen P Vickers <svickers@imsglobal.org>
 * @copyright  IMS Global Learning Consortium Inc
 * @date  2016
 * @version 2015-11-30
 * @license https://opensource.org/licenses/MIT The MIT License
 */
/**
 * The HMAC-SHA256 signature method uses the HMAC-SHA256 signature algorithm as defined in [RFC6234]
 * 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.
 */
#[\AllowDynamicProperties]
class OAuthSignatureMethod_HMAC_SHA256 extends OAuthSignatureMethod {

function get_name() {
        return "HMAC-SHA256";
    }

public function build_signature($request, $consumer, $token) {

$base_string = $request->get_signature_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);

return base64_encode(hash_hmac('sha256', $base_string, $key, true));

}

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Editing: OAuthSignatureMethod_HMAC_SHA256.php

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