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We need to create a vapid public and private key

This commit is contained in:
Michael 2021-08-15 12:57:29 +00:00
parent 74f3cbc383
commit 5056376902
2 changed files with 12 additions and 5 deletions
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6
src/Model/Subscription.php
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@ -19,6 +19,10 @@
* *
*/ */
/**
* @see https://github.com/web-push-libs/web-push-php
* Possibly we should simply use this.
*/
namespace Friendica\Model; namespace Friendica\Model;
use Friendica\Database\DBA; use Friendica\Database\DBA;
@ -104,6 +108,6 @@ class Subscription
$keypair = Crypto::newECKeypair(); $keypair = Crypto::newECKeypair();
DI::config()->set('system', 'ec_keypair', $keypair); DI::config()->set('system', 'ec_keypair', $keypair);
} }
return $keypair['vapid']; return $keypair['vapid-public'];
} }
} }

11
src/Util/Crypto.php
View File

@ -155,7 +155,7 @@ class Crypto
/** /**
* Create a new elliptic curve key pair * Create a new elliptic curve key pair
* *
* @return array with the elements "prvkey", "vapid" and "pubkey" * @return array with the elements "prvkey", "pubkey", "vapid-public" and "vapid-private"
*/ */
public static function newECKeypair() public static function newECKeypair()
{ {
@ -174,7 +174,7 @@ class Crypto
throw new Exception('Key creation failed'); throw new Exception('Key creation failed');
} }
$response = ['prvkey' => '', 'pubkey' => '', 'vapid' => '']; $response = ['prvkey' => '', 'pubkey' => ''];
// Get private key // Get private key
openssl_pkey_export($result, $response['prvkey']); openssl_pkey_export($result, $response['prvkey']);
@ -183,12 +183,15 @@ class Crypto
$pkey = openssl_pkey_get_details($result); $pkey = openssl_pkey_get_details($result);
$response['pubkey'] = $pkey['key']; $response['pubkey'] = $pkey['key'];
// Create VAPID key // Create VAPID keys
// @see https://github.com/web-push-libs/web-push-php/blob/256a18b2a2411469c94943725fb6eccb9681bd75/src/Utils.php#L60-L62 // @see https://github.com/web-push-libs/web-push-php/blob/256a18b2a2411469c94943725fb6eccb9681bd75/src/Utils.php#L60-L62
$hexString = '04'; $hexString = '04';
$hexString .= str_pad(bin2hex($pkey['ec']['x']), 64, '0', STR_PAD_LEFT); $hexString .= str_pad(bin2hex($pkey['ec']['x']), 64, '0', STR_PAD_LEFT);
$hexString .= str_pad(bin2hex($pkey['ec']['y']), 64, '0', STR_PAD_LEFT); $hexString .= str_pad(bin2hex($pkey['ec']['y']), 64, '0', STR_PAD_LEFT);
$response['vapid'] = Base64UrlSafe::encode(hex2bin($hexString)); $response['vapid-public'] = Base64UrlSafe::encode(hex2bin($hexString));
// @see https://github.com/web-push-libs/web-push-php/blob/256a18b2a2411469c94943725fb6eccb9681bd75/src/VAPID.php
$response['vapid-private'] = Base64UrlSafe::encode(hex2bin(str_pad(bin2hex($pkey['ec']['d']), 64, '0', STR_PAD_LEFT)));
return $response; return $response;
} }