8 files changed, 1422 insertions, 1422 deletions

diff --git a/vendor/minishlink/web-push/src/Encryption.php b/vendor/minishlink/web-push/src/Encryption.php
index e9fe1ac..c867265 100644
--- a/vendor/minishlink/web-push/src/Encryption.php
+++ b/vendor/minishlink/web-push/src/Encryption.php
@@ -1,321 +1,321 @@
-<?php
-
-declare(strict_types=1);
-
-/*
- * This file is part of the WebPush library.
- *
- * (c) Louis Lagrange <lagrange.louis@gmail.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Minishlink\WebPush;
-
-use Base64Url\Base64Url;
-use Jose\Component\Core\Util\Ecc\NistCurve;
-use Jose\Component\Core\Util\Ecc\Point;
-use Jose\Component\Core\Util\Ecc\PrivateKey;
-use Jose\Component\Core\Util\Ecc\PublicKey;
-
-class Encryption
-{
-    public const MAX_PAYLOAD_LENGTH = 4078;
-    public const MAX_COMPATIBILITY_PAYLOAD_LENGTH = 3052;
-
-    /**
-     * @param string $payload
-     * @param int $maxLengthToPad
-     * @param string $contentEncoding
-     * @return string padded payload (plaintext)
-     * @throws \ErrorException
-     */
-    public static function padPayload(string $payload, int $maxLengthToPad, string $contentEncoding): string
-    {
-        $payloadLen = Utils::safeStrlen($payload);
-        $padLen = $maxLengthToPad ? $maxLengthToPad - $payloadLen : 0;
-
-        if ($contentEncoding === "aesgcm") {
-            return pack('n*', $padLen).str_pad($payload, $padLen + $payloadLen, chr(0), STR_PAD_LEFT);
-        } elseif ($contentEncoding === "aes128gcm") {
-            return str_pad($payload.chr(2), $padLen + $payloadLen, chr(0), STR_PAD_RIGHT);
-        } else {
-            throw new \ErrorException("This content encoding is not supported");
-        }
-    }
-
-    /**
-     * @param string $payload With padding
-     * @param string $userPublicKey Base 64 encoded (MIME or URL-safe)
-     * @param string $userAuthToken Base 64 encoded (MIME or URL-safe)
-     * @param string $contentEncoding
-     * @return array
-     *
-     * @throws \ErrorException
-     */
-    public static function encrypt(string $payload, string $userPublicKey, string $userAuthToken, string $contentEncoding): array
-    {
-        return self::deterministicEncrypt(
-            $payload,
-            $userPublicKey,
-            $userAuthToken,
-            $contentEncoding,
-            self::createLocalKeyObject(),
-            random_bytes(16)
-        );
-    }
-
-    /**
-     * @param string $payload
-     * @param string $userPublicKey
-     * @param string $userAuthToken
-     * @param string $contentEncoding
-     * @param array $localKeyObject
-     * @param string $salt
-     * @return array
-     *
-     * @throws \ErrorException
-     */
-    public static function deterministicEncrypt(string $payload, string $userPublicKey, string $userAuthToken, string $contentEncoding, array $localKeyObject, string $salt): array
-    {
-        $userPublicKey = Base64Url::decode($userPublicKey);
-        $userAuthToken = Base64Url::decode($userAuthToken);
-
-        $curve = NistCurve::curve256();
-
-        // get local key pair
-        list($localPublicKeyObject, $localPrivateKeyObject) = $localKeyObject;
-        $localPublicKey = hex2bin(Utils::serializePublicKey($localPublicKeyObject));
-        if (!$localPublicKey) {
-            throw new \ErrorException('Failed to convert local public key from hexadecimal to binary');
-        }
-
-        // get user public key object
-        [$userPublicKeyObjectX, $userPublicKeyObjectY] = Utils::unserializePublicKey($userPublicKey);
-        $userPublicKeyObject = $curve->getPublicKeyFrom(
-            gmp_init(bin2hex($userPublicKeyObjectX), 16),
-            gmp_init(bin2hex($userPublicKeyObjectY), 16)
-        );
-
-        // get shared secret from user public key and local private key
-        $sharedSecret = $curve->mul($userPublicKeyObject->getPoint(), $localPrivateKeyObject->getSecret())->getX();
-        $sharedSecret = hex2bin(str_pad(gmp_strval($sharedSecret, 16), 64, '0', STR_PAD_LEFT));
-        if (!$sharedSecret) {
-            throw new \ErrorException('Failed to convert shared secret from hexadecimal to binary');
-        }
-
-        // section 4.3
-        $ikm = self::getIKM($userAuthToken, $userPublicKey, $localPublicKey, $sharedSecret, $contentEncoding);
-
-        // section 4.2
-        $context = self::createContext($userPublicKey, $localPublicKey, $contentEncoding);
-
-        // derive the Content Encryption Key
-        $contentEncryptionKeyInfo = self::createInfo($contentEncoding, $context, $contentEncoding);
-        $contentEncryptionKey = self::hkdf($salt, $ikm, $contentEncryptionKeyInfo, 16);
-
-        // section 3.3, derive the nonce
-        $nonceInfo = self::createInfo('nonce', $context, $contentEncoding);
-        $nonce = self::hkdf($salt, $ikm, $nonceInfo, 12);
-
-        // encrypt
-        // "The additional data passed to each invocation of AEAD_AES_128_GCM is a zero-length octet sequence."
-        $tag = '';
-        $encryptedText = openssl_encrypt($payload, 'aes-128-gcm', $contentEncryptionKey, OPENSSL_RAW_DATA, $nonce, $tag);
-
-        // return values in url safe base64
-        return [
-            'localPublicKey' => $localPublicKey,
-            'salt' => $salt,
-            'cipherText' => $encryptedText.$tag,
-        ];
-    }
-
-    public static function getContentCodingHeader($salt, $localPublicKey, $contentEncoding): string
-    {
-        if ($contentEncoding === "aes128gcm") {
-            return $salt
-                .pack('N*', 4096)
-                .pack('C*', Utils::safeStrlen($localPublicKey))
-                .$localPublicKey;
-        }
-
-        return "";
-    }
-
-    /**
-     * HMAC-based Extract-and-Expand Key Derivation Function (HKDF).
-     *
-     * This is used to derive a secure encryption key from a mostly-secure shared
-     * secret.
-     *
-     * This is a partial implementation of HKDF tailored to our specific purposes.
-     * In particular, for us the value of N will always be 1, and thus T always
-     * equals HMAC-Hash(PRK, info | 0x01).
-     *
-     * See {@link https://www.rfc-editor.org/rfc/rfc5869.txt}
-     * From {@link https://github.com/GoogleChrome/push-encryption-node/blob/master/src/encrypt.js}
-     *
-     * @param string $salt   A non-secret random value
-     * @param string $ikm    Input keying material
-     * @param string $info   Application-specific context
-     * @param int    $length The length (in bytes) of the required output key
-     *
-     * @return string
-     */
-    private static function hkdf(string $salt, string $ikm, string $info, int $length): string
-    {
-        // extract
-        $prk = hash_hmac('sha256', $ikm, $salt, true);
-
-        // expand
-        return mb_substr(hash_hmac('sha256', $info.chr(1), $prk, true), 0, $length, '8bit');
-    }
-
-    /**
-     * Creates a context for deriving encryption parameters.
-     * See section 4.2 of
-     * {@link https://tools.ietf.org/html/draft-ietf-httpbis-encryption-encoding-00}
-     * From {@link https://github.com/GoogleChrome/push-encryption-node/blob/master/src/encrypt.js}.
-     *
-     * @param string $clientPublicKey The client's public key
-     * @param string $serverPublicKey Our public key
-     *
-     * @return null|string
-     *
-     * @throws \ErrorException
-     */
-    private static function createContext(string $clientPublicKey, string $serverPublicKey, $contentEncoding): ?string
-    {
-        if ($contentEncoding === "aes128gcm") {
-            return null;
-        }
-
-        if (Utils::safeStrlen($clientPublicKey) !== 65) {
-            throw new \ErrorException('Invalid client public key length');
-        }
-
-        // This one should never happen, because it's our code that generates the key
-        if (Utils::safeStrlen($serverPublicKey) !== 65) {
-            throw new \ErrorException('Invalid server public key length');
-        }
-
-        $len = chr(0).'A'; // 65 as Uint16BE
-
-        return chr(0).$len.$clientPublicKey.$len.$serverPublicKey;
-    }
-
-    /**
-     * Returns an info record. See sections 3.2 and 3.3 of
-     * {@link https://tools.ietf.org/html/draft-ietf-httpbis-encryption-encoding-00}
-     * From {@link https://github.com/GoogleChrome/push-encryption-node/blob/master/src/encrypt.js}.
-     *
-     * @param string $type The type of the info record
-     * @param string|null $context The context for the record
-     * @param string $contentEncoding
-     * @return string
-     *
-     * @throws \ErrorException
-     */
-    private static function createInfo(string $type, ?string $context, string $contentEncoding): string
-    {
-        if ($contentEncoding === "aesgcm") {
-            if (!$context) {
-                throw new \ErrorException('Context must exist');
-            }
-
-            if (Utils::safeStrlen($context) !== 135) {
-                throw new \ErrorException('Context argument has invalid size');
-            }
-
-            return 'Content-Encoding: '.$type.chr(0).'P-256'.$context;
-        } elseif ($contentEncoding === "aes128gcm") {
-            return 'Content-Encoding: '.$type.chr(0);
-        }
-
-        throw new \ErrorException('This content encoding is not supported.');
-    }
-
-    /**
-     * @return array
-     */
-    private static function createLocalKeyObject(): array
-    {
-        try {
-            return self::createLocalKeyObjectUsingOpenSSL();
-        } catch (\Exception $e) {
-            return self::createLocalKeyObjectUsingPurePhpMethod();
-        }
-    }
-
-    /**
-     * @return array
-     */
-    private static function createLocalKeyObjectUsingPurePhpMethod(): array
-    {
-        $curve = NistCurve::curve256();
-        $privateKey = $curve->createPrivateKey();
-
-        return [
-            $curve->createPublicKey($privateKey),
-            $privateKey,
-        ];
-    }
-
-    /**
-     * @return array
-     */
-    private static function createLocalKeyObjectUsingOpenSSL(): array
-    {
-        $keyResource = openssl_pkey_new([
-            'curve_name'       => 'prime256v1',
-            'private_key_type' => OPENSSL_KEYTYPE_EC,
-        ]);
-
-        if (!$keyResource) {
-            throw new \RuntimeException('Unable to create the key');
-        }
-
-        $details = openssl_pkey_get_details($keyResource);
-        openssl_pkey_free($keyResource);
-
-        if (!$details) {
-            throw new \RuntimeException('Unable to get the key details');
-        }
-
-        return [
-            PublicKey::create(Point::create(
-                gmp_init(bin2hex($details['ec']['x']), 16),
-                gmp_init(bin2hex($details['ec']['y']), 16)
-            )),
-            PrivateKey::create(gmp_init(bin2hex($details['ec']['d']), 16))
-        ];
-    }
-
-    /**
-     * @param string $userAuthToken
-     * @param string $userPublicKey
-     * @param string $localPublicKey
-     * @param string $sharedSecret
-     * @param string $contentEncoding
-     * @return string
-     * @throws \ErrorException
-     */
-    private static function getIKM(string $userAuthToken, string $userPublicKey, string $localPublicKey, string $sharedSecret, string $contentEncoding): string
-    {
-        if (!empty($userAuthToken)) {
-            if ($contentEncoding === "aesgcm") {
-                $info = 'Content-Encoding: auth'.chr(0);
-            } elseif ($contentEncoding === "aes128gcm") {
-                $info = "WebPush: info".chr(0).$userPublicKey.$localPublicKey;
-            } else {
-                throw new \ErrorException("This content encoding is not supported");
-            }
-
-            return self::hkdf($userAuthToken, $sharedSecret, $info, 32);
-        }
-
-        return $sharedSecret;
-    }
-}
+<?php

+

+declare(strict_types=1);

+

+/*

+ * This file is part of the WebPush library.

+ *

+ * (c) Louis Lagrange <lagrange.louis@gmail.com>

+ *

+ * For the full copyright and license information, please view the LICENSE

+ * file that was distributed with this source code.

+ */

+

+namespace Minishlink\WebPush;

+

+use Base64Url\Base64Url;

+use Jose\Component\Core\Util\Ecc\NistCurve;

+use Jose\Component\Core\Util\Ecc\Point;

+use Jose\Component\Core\Util\Ecc\PrivateKey;

+use Jose\Component\Core\Util\Ecc\PublicKey;

+

+class Encryption

+{

+    public const MAX_PAYLOAD_LENGTH = 4078;

+    public const MAX_COMPATIBILITY_PAYLOAD_LENGTH = 3052;

+

+    /**

+     * @param string $payload

+     * @param int $maxLengthToPad

+     * @param string $contentEncoding

+     * @return string padded payload (plaintext)

+     * @throws \ErrorException

+     */

+    public static function padPayload(string $payload, int $maxLengthToPad, string $contentEncoding): string

+    {

+        $payloadLen = Utils::safeStrlen($payload);

+        $padLen = $maxLengthToPad ? $maxLengthToPad - $payloadLen : 0;

+

+        if ($contentEncoding === "aesgcm") {

+            return pack('n*', $padLen).str_pad($payload, $padLen + $payloadLen, chr(0), STR_PAD_LEFT);

+        } elseif ($contentEncoding === "aes128gcm") {

+            return str_pad($payload.chr(2), $padLen + $payloadLen, chr(0), STR_PAD_RIGHT);

+        } else {

+            throw new \ErrorException("This content encoding is not supported");

+        }

+    }

+

+    /**

+     * @param string $payload With padding

+     * @param string $userPublicKey Base 64 encoded (MIME or URL-safe)

+     * @param string $userAuthToken Base 64 encoded (MIME or URL-safe)

+     * @param string $contentEncoding

+     * @return array

+     *

+     * @throws \ErrorException

+     */

+    public static function encrypt(string $payload, string $userPublicKey, string $userAuthToken, string $contentEncoding): array

+    {

+        return self::deterministicEncrypt(

+            $payload,

+            $userPublicKey,

+            $userAuthToken,

+            $contentEncoding,

+            self::createLocalKeyObject(),

+            random_bytes(16)

+        );

+    }

+

+    /**

+     * @param string $payload

+     * @param string $userPublicKey

+     * @param string $userAuthToken

+     * @param string $contentEncoding

+     * @param array $localKeyObject

+     * @param string $salt

+     * @return array

+     *

+     * @throws \ErrorException

+     */

+    public static function deterministicEncrypt(string $payload, string $userPublicKey, string $userAuthToken, string $contentEncoding, array $localKeyObject, string $salt): array

+    {

+        $userPublicKey = Base64Url::decode($userPublicKey);

+        $userAuthToken = Base64Url::decode($userAuthToken);

+

+        $curve = NistCurve::curve256();

+

+        // get local key pair

+        list($localPublicKeyObject, $localPrivateKeyObject) = $localKeyObject;

+        $localPublicKey = hex2bin(Utils::serializePublicKey($localPublicKeyObject));

+        if (!$localPublicKey) {

+            throw new \ErrorException('Failed to convert local public key from hexadecimal to binary');

+        }

+

+        // get user public key object

+        [$userPublicKeyObjectX, $userPublicKeyObjectY] = Utils::unserializePublicKey($userPublicKey);

+        $userPublicKeyObject = $curve->getPublicKeyFrom(

+            gmp_init(bin2hex($userPublicKeyObjectX), 16),

+            gmp_init(bin2hex($userPublicKeyObjectY), 16)

+        );

+

+        // get shared secret from user public key and local private key

+        $sharedSecret = $curve->mul($userPublicKeyObject->getPoint(), $localPrivateKeyObject->getSecret())->getX();

+        $sharedSecret = hex2bin(str_pad(gmp_strval($sharedSecret, 16), 64, '0', STR_PAD_LEFT));

+        if (!$sharedSecret) {

+            throw new \ErrorException('Failed to convert shared secret from hexadecimal to binary');

+        }

+

+        // section 4.3

+        $ikm = self::getIKM($userAuthToken, $userPublicKey, $localPublicKey, $sharedSecret, $contentEncoding);

+

+        // section 4.2

+        $context = self::createContext($userPublicKey, $localPublicKey, $contentEncoding);

+

+        // derive the Content Encryption Key

+        $contentEncryptionKeyInfo = self::createInfo($contentEncoding, $context, $contentEncoding);

+        $contentEncryptionKey = self::hkdf($salt, $ikm, $contentEncryptionKeyInfo, 16);

+

+        // section 3.3, derive the nonce

+        $nonceInfo = self::createInfo('nonce', $context, $contentEncoding);

+        $nonce = self::hkdf($salt, $ikm, $nonceInfo, 12);

+

+        // encrypt

+        // "The additional data passed to each invocation of AEAD_AES_128_GCM is a zero-length octet sequence."

+        $tag = '';

+        $encryptedText = openssl_encrypt($payload, 'aes-128-gcm', $contentEncryptionKey, OPENSSL_RAW_DATA, $nonce, $tag);

+

+        // return values in url safe base64

+        return [

+            'localPublicKey' => $localPublicKey,

+            'salt' => $salt,

+            'cipherText' => $encryptedText.$tag,

+        ];

+    }

+

+    public static function getContentCodingHeader($salt, $localPublicKey, $contentEncoding): string

+    {

+        if ($contentEncoding === "aes128gcm") {

+            return $salt

+                .pack('N*', 4096)

+                .pack('C*', Utils::safeStrlen($localPublicKey))

+                .$localPublicKey;

+        }

+

+        return "";

+    }

+

+    /**

+     * HMAC-based Extract-and-Expand Key Derivation Function (HKDF).

+     *

+     * This is used to derive a secure encryption key from a mostly-secure shared

+     * secret.

+     *

+     * This is a partial implementation of HKDF tailored to our specific purposes.

+     * In particular, for us the value of N will always be 1, and thus T always

+     * equals HMAC-Hash(PRK, info | 0x01).

+     *

+     * See {@link https://www.rfc-editor.org/rfc/rfc5869.txt}

+     * From {@link https://github.com/GoogleChrome/push-encryption-node/blob/master/src/encrypt.js}

+     *

+     * @param string $salt   A non-secret random value

+     * @param string $ikm    Input keying material

+     * @param string $info   Application-specific context

+     * @param int    $length The length (in bytes) of the required output key

+     *

+     * @return string

+     */

+    private static function hkdf(string $salt, string $ikm, string $info, int $length): string

+    {

+        // extract

+        $prk = hash_hmac('sha256', $ikm, $salt, true);

+

+        // expand

+        return mb_substr(hash_hmac('sha256', $info.chr(1), $prk, true), 0, $length, '8bit');

+    }

+

+    /**

+     * Creates a context for deriving encryption parameters.

+     * See section 4.2 of

+     * {@link https://tools.ietf.org/html/draft-ietf-httpbis-encryption-encoding-00}

+     * From {@link https://github.com/GoogleChrome/push-encryption-node/blob/master/src/encrypt.js}.

+     *

+     * @param string $clientPublicKey The client's public key

+     * @param string $serverPublicKey Our public key

+     *

+     * @return null|string

+     *

+     * @throws \ErrorException

+     */

+    private static function createContext(string $clientPublicKey, string $serverPublicKey, $contentEncoding): ?string

+    {

+        if ($contentEncoding === "aes128gcm") {

+            return null;

+        }

+

+        if (Utils::safeStrlen($clientPublicKey) !== 65) {

+            throw new \ErrorException('Invalid client public key length');

+        }

+

+        // This one should never happen, because it's our code that generates the key

+        if (Utils::safeStrlen($serverPublicKey) !== 65) {

+            throw new \ErrorException('Invalid server public key length');

+        }

+

+        $len = chr(0).'A'; // 65 as Uint16BE

+

+        return chr(0).$len.$clientPublicKey.$len.$serverPublicKey;

+    }

+

+    /**

+     * Returns an info record. See sections 3.2 and 3.3 of

+     * {@link https://tools.ietf.org/html/draft-ietf-httpbis-encryption-encoding-00}

+     * From {@link https://github.com/GoogleChrome/push-encryption-node/blob/master/src/encrypt.js}.

+     *

+     * @param string $type The type of the info record

+     * @param string|null $context The context for the record

+     * @param string $contentEncoding

+     * @return string

+     *

+     * @throws \ErrorException

+     */

+    private static function createInfo(string $type, ?string $context, string $contentEncoding): string

+    {

+        if ($contentEncoding === "aesgcm") {

+            if (!$context) {

+                throw new \ErrorException('Context must exist');

+            }

+

+            if (Utils::safeStrlen($context) !== 135) {

+                throw new \ErrorException('Context argument has invalid size');

+            }

+

+            return 'Content-Encoding: '.$type.chr(0).'P-256'.$context;

+        } elseif ($contentEncoding === "aes128gcm") {

+            return 'Content-Encoding: '.$type.chr(0);

+        }

+

+        throw new \ErrorException('This content encoding is not supported.');

+    }

+

+    /**

+     * @return array

+     */

+    private static function createLocalKeyObject(): array

+    {

+        try {

+            return self::createLocalKeyObjectUsingOpenSSL();

+        } catch (\Exception $e) {

+            return self::createLocalKeyObjectUsingPurePhpMethod();

+        }

+    }

+

+    /**

+     * @return array

+     */

+    private static function createLocalKeyObjectUsingPurePhpMethod(): array

+    {

+        $curve = NistCurve::curve256();

+        $privateKey = $curve->createPrivateKey();

+

+        return [

+            $curve->createPublicKey($privateKey),

+            $privateKey,

+        ];

+    }

+

+    /**

+     * @return array

+     */

+    private static function createLocalKeyObjectUsingOpenSSL(): array

+    {

+        $keyResource = openssl_pkey_new([

+            'curve_name'       => 'prime256v1',

+            'private_key_type' => OPENSSL_KEYTYPE_EC,

+        ]);

+

+        if (!$keyResource) {

+            throw new \RuntimeException('Unable to create the key');

+        }

+

+        $details = openssl_pkey_get_details($keyResource);

+        openssl_pkey_free($keyResource);

+

+        if (!$details) {

+            throw new \RuntimeException('Unable to get the key details');

+        }

+

+        return [

+            PublicKey::create(Point::create(

+                gmp_init(bin2hex($details['ec']['x']), 16),

+                gmp_init(bin2hex($details['ec']['y']), 16)

+            )),

+            PrivateKey::create(gmp_init(bin2hex($details['ec']['d']), 16))

+        ];

+    }

+

+    /**

+     * @param string $userAuthToken

+     * @param string $userPublicKey

+     * @param string $localPublicKey

+     * @param string $sharedSecret

+     * @param string $contentEncoding

+     * @return string

+     * @throws \ErrorException

+     */

+    private static function getIKM(string $userAuthToken, string $userPublicKey, string $localPublicKey, string $sharedSecret, string $contentEncoding): string

+    {

+        if (!empty($userAuthToken)) {

+            if ($contentEncoding === "aesgcm") {

+                $info = 'Content-Encoding: auth'.chr(0);

+            } elseif ($contentEncoding === "aes128gcm") {

+                $info = "WebPush: info".chr(0).$userPublicKey.$localPublicKey;

+            } else {

+                throw new \ErrorException("This content encoding is not supported");

+            }

+

+            return self::hkdf($userAuthToken, $sharedSecret, $info, 32);

+        }

+

+        return $sharedSecret;

+    }

+}

diff --git a/vendor/minishlink/web-push/src/MessageSentReport.php b/vendor/minishlink/web-push/src/MessageSentReport.php
index c569952..a6945e6 100644
--- a/vendor/minishlink/web-push/src/MessageSentReport.php
+++ b/vendor/minishlink/web-push/src/MessageSentReport.php
@@ -1,181 +1,181 @@
-<?php
-/**
- * @author Igor Timoshenkov [it@campoint.net]
- * @started: 03.09.2018 9:21
- */
-
-namespace Minishlink\WebPush;
-
-use Psr\Http\Message\RequestInterface;
-use Psr\Http\Message\ResponseInterface;
-
-/**
- * Standardized response from sending a message
- */
-class MessageSentReport implements \JsonSerializable
-{
-
-    /**
-     * @var boolean
-     */
-    protected $success;
-
-    /**
-     * @var RequestInterface
-     */
-    protected $request;
-
-    /**
-     * @var ResponseInterface | null
-     */
-    protected $response;
-
-    /**
-     * @var string
-     */
-    protected $reason;
-
-    /**
-     * @param RequestInterface  $request
-     * @param ResponseInterface $response
-     * @param bool              $success
-     * @param string            $reason
-     */
-    public function __construct(RequestInterface $request, ?ResponseInterface $response = null, bool $success = true, $reason = 'OK')
-    {
-        $this->request  = $request;
-        $this->response = $response;
-        $this->success  = $success;
-        $this->reason   = $reason;
-    }
-
-    /**
-     * @return bool
-     */
-    public function isSuccess(): bool
-    {
-        return $this->success;
-    }
-
-    /**
-     * @param bool $success
-     *
-     * @return MessageSentReport
-     */
-    public function setSuccess(bool $success): MessageSentReport
-    {
-        $this->success = $success;
-        return $this;
-    }
-
-    /**
-     * @return RequestInterface
-     */
-    public function getRequest(): RequestInterface
-    {
-        return $this->request;
-    }
-
-    /**
-     * @param RequestInterface $request
-     *
-     * @return MessageSentReport
-     */
-    public function setRequest(RequestInterface $request): MessageSentReport
-    {
-        $this->request = $request;
-        return $this;
-    }
-
-    /**
-     * @return ResponseInterface | null
-     */
-    public function getResponse(): ?ResponseInterface
-    {
-        return $this->response;
-    }
-
-    /**
-     * @param ResponseInterface $response
-     *
-     * @return MessageSentReport
-     */
-    public function setResponse(ResponseInterface $response): MessageSentReport
-    {
-        $this->response = $response;
-        return $this;
-    }
-
-    /**
-     * @return string
-     */
-    public function getEndpoint(): string
-    {
-        return $this->request->getUri()->__toString();
-    }
-
-    /**
-     * @return bool
-     */
-    public function isSubscriptionExpired(): bool
-    {
-        if (!$this->response) {
-            return false;
-        }
-
-        return \in_array($this->response->getStatusCode(), [404, 410], true);
-    }
-
-    /**
-     * @return string
-     */
-    public function getReason(): string
-    {
-        return $this->reason;
-    }
-
-    /**
-     * @param string $reason
-     *
-     * @return MessageSentReport
-     */
-    public function setReason(string $reason): MessageSentReport
-    {
-        $this->reason = $reason;
-        return $this;
-    }
-
-    /**
-     * @return string
-     */
-    public function getRequestPayload(): string
-    {
-        return $this->request->getBody()->getContents();
-    }
-
-    /**
-     * @return string | null
-     */
-    public function getResponseContent(): ?string
-    {
-        if (!$this->response) {
-            return null;
-        }
-
-        return $this->response->getBody()->getContents();
-    }
-
-    /**
-     * @return array|mixed
-     */
-    public function jsonSerialize()
-    {
-        return [
-            'success'  => $this->isSuccess(),
-            'expired'  => $this->isSubscriptionExpired(),
-            'reason'   => $this->reason,
-            'endpoint' => $this->getEndpoint(),
-            'payload'  => $this->request->getBody()->getContents(),
-        ];
-    }
-}
+<?php

+/**

+ * @author Igor Timoshenkov [it@campoint.net]

+ * @started: 03.09.2018 9:21

+ */

+

+namespace Minishlink\WebPush;

+

+use Psr\Http\Message\RequestInterface;

+use Psr\Http\Message\ResponseInterface;

+

+/**

+ * Standardized response from sending a message

+ */

+class MessageSentReport implements \JsonSerializable

+{

+

+    /**

+     * @var boolean

+     */

+    protected $success;

+

+    /**

+     * @var RequestInterface

+     */

+    protected $request;

+

+    /**

+     * @var ResponseInterface | null

+     */

+    protected $response;

+

+    /**

+     * @var string

+     */

+    protected $reason;

+

+    /**

+     * @param RequestInterface  $request

+     * @param ResponseInterface $response

+     * @param bool              $success

+     * @param string            $reason

+     */

+    public function __construct(RequestInterface $request, ?ResponseInterface $response = null, bool $success = true, $reason = 'OK')

+    {

+        $this->request  = $request;

+        $this->response = $response;

+        $this->success  = $success;

+        $this->reason   = $reason;

+    }

+

+    /**

+     * @return bool

+     */

+    public function isSuccess(): bool

+    {

+        return $this->success;

+    }

+

+    /**

+     * @param bool $success

+     *

+     * @return MessageSentReport

+     */

+    public function setSuccess(bool $success): MessageSentReport

+    {

+        $this->success = $success;

+        return $this;

+    }

+

+    /**

+     * @return RequestInterface

+     */

+    public function getRequest(): RequestInterface

+    {

+        return $this->request;

+    }

+

+    /**

+     * @param RequestInterface $request

+     *

+     * @return MessageSentReport

+     */

+    public function setRequest(RequestInterface $request): MessageSentReport

+    {

+        $this->request = $request;

+        return $this;

+    }

+

+    /**

+     * @return ResponseInterface | null

+     */

+    public function getResponse(): ?ResponseInterface

+    {

+        return $this->response;

+    }

+

+    /**

+     * @param ResponseInterface $response

+     *

+     * @return MessageSentReport

+     */

+    public function setResponse(ResponseInterface $response): MessageSentReport

+    {

+        $this->response = $response;

+        return $this;

+    }

+

+    /**

+     * @return string

+     */

+    public function getEndpoint(): string

+    {

+        return $this->request->getUri()->__toString();

+    }

+

+    /**

+     * @return bool

+     */

+    public function isSubscriptionExpired(): bool

+    {

+        if (!$this->response) {

+            return false;

+        }

+

+        return \in_array($this->response->getStatusCode(), [404, 410], true);

+    }

+

+    /**

+     * @return string

+     */

+    public function getReason(): string

+    {

+        return $this->reason;

+    }

+

+    /**

+     * @param string $reason

+     *

+     * @return MessageSentReport

+     */

+    public function setReason(string $reason): MessageSentReport

+    {

+        $this->reason = $reason;

+        return $this;

+    }

+

+    /**

+     * @return string

+     */

+    public function getRequestPayload(): string

+    {

+        return $this->request->getBody()->getContents();

+    }

+

+    /**

+     * @return string | null

+     */

+    public function getResponseContent(): ?string

+    {

+        if (!$this->response) {

+            return null;

+        }

+

+        return $this->response->getBody()->getContents();

+    }

+

+    /**

+     * @return array|mixed

+     */

+    public function jsonSerialize()

+    {

+        return [

+            'success'  => $this->isSuccess(),

+            'expired'  => $this->isSubscriptionExpired(),

+            'reason'   => $this->reason,

+            'endpoint' => $this->getEndpoint(),

+            'payload'  => $this->request->getBody()->getContents(),

+        ];

+    }

+}

diff --git a/vendor/minishlink/web-push/src/Notification.php b/vendor/minishlink/web-push/src/Notification.php
index 1107404..15d634f 100644
--- a/vendor/minishlink/web-push/src/Notification.php
+++ b/vendor/minishlink/web-push/src/Notification.php
@@ -1,86 +1,86 @@
-<?php
-
-declare(strict_types=1);
-
-/*
- * This file is part of the WebPush library.
- *
- * (c) Louis Lagrange <lagrange.louis@gmail.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Minishlink\WebPush;
-
-class Notification
-{
-    /** @var SubscriptionInterface */
-    private $subscription;
-
-    /** @var null|string */
-    private $payload;
-
-    /** @var array Options : TTL, urgency, topic */
-    private $options;
-
-    /** @var array Auth details : GCM, VAPID */
-    private $auth;
-
-    /**
-     * Notification constructor.
-     *
-     * @param SubscriptionInterface $subscription
-     * @param null|string $payload
-     * @param array $options
-     * @param array $auth
-     */
-    public function __construct(SubscriptionInterface $subscription, ?string $payload, array $options, array $auth)
-    {
-        $this->subscription = $subscription;
-        $this->payload = $payload;
-        $this->options = $options;
-        $this->auth = $auth;
-    }
-
-    /**
-     * @return SubscriptionInterface
-     */
-    public function getSubscription(): SubscriptionInterface
-    {
-        return $this->subscription;
-    }
-
-    /**
-     * @return null|string
-     */
-    public function getPayload(): ?string
-    {
-        return $this->payload;
-    }
-
-    /**
-     * @param array $defaultOptions
-     *
-     * @return array
-     */
-    public function getOptions(array $defaultOptions = []): array
-    {
-        $options = $this->options;
-        $options['TTL'] = array_key_exists('TTL', $options) ? $options['TTL'] : $defaultOptions['TTL'];
-        $options['urgency'] = array_key_exists('urgency', $options) ? $options['urgency'] : $defaultOptions['urgency'];
-        $options['topic'] = array_key_exists('topic', $options) ? $options['topic'] : $defaultOptions['topic'];
-
-        return $options;
-    }
-
-    /**
-     * @param array $defaultAuth
-     *
-     * @return array
-     */
-    public function getAuth(array $defaultAuth): array
-    {
-        return count($this->auth) > 0 ? $this->auth : $defaultAuth;
-    }
-}
+<?php

+

+declare(strict_types=1);

+

+/*

+ * This file is part of the WebPush library.

+ *

+ * (c) Louis Lagrange <lagrange.louis@gmail.com>

+ *

+ * For the full copyright and license information, please view the LICENSE

+ * file that was distributed with this source code.

+ */

+

+namespace Minishlink\WebPush;

+

+class Notification

+{

+    /** @var SubscriptionInterface */

+    private $subscription;

+

+    /** @var null|string */

+    private $payload;

+

+    /** @var array Options : TTL, urgency, topic */

+    private $options;

+

+    /** @var array Auth details : GCM, VAPID */

+    private $auth;

+

+    /**

+     * Notification constructor.

+     *

+     * @param SubscriptionInterface $subscription

+     * @param null|string $payload

+     * @param array $options

+     * @param array $auth

+     */

+    public function __construct(SubscriptionInterface $subscription, ?string $payload, array $options, array $auth)

+    {

+        $this->subscription = $subscription;

+        $this->payload = $payload;

+        $this->options = $options;

+        $this->auth = $auth;

+    }

+

+    /**

+     * @return SubscriptionInterface

+     */

+    public function getSubscription(): SubscriptionInterface

+    {

+        return $this->subscription;

+    }

+

+    /**

+     * @return null|string

+     */

+    public function getPayload(): ?string

+    {

+        return $this->payload;

+    }

+

+    /**

+     * @param array $defaultOptions

+     *

+     * @return array

+     */

+    public function getOptions(array $defaultOptions = []): array

+    {

+        $options = $this->options;

+        $options['TTL'] = array_key_exists('TTL', $options) ? $options['TTL'] : $defaultOptions['TTL'];

+        $options['urgency'] = array_key_exists('urgency', $options) ? $options['urgency'] : $defaultOptions['urgency'];

+        $options['topic'] = array_key_exists('topic', $options) ? $options['topic'] : $defaultOptions['topic'];

+

+        return $options;

+    }

+

+    /**

+     * @param array $defaultAuth

+     *

+     * @return array

+     */

+    public function getAuth(array $defaultAuth): array

+    {

+        return count($this->auth) > 0 ? $this->auth : $defaultAuth;

+    }

+}

diff --git a/vendor/minishlink/web-push/src/Subscription.php b/vendor/minishlink/web-push/src/Subscription.php
index 1232893..f570c30 100644
--- a/vendor/minishlink/web-push/src/Subscription.php
+++ b/vendor/minishlink/web-push/src/Subscription.php
@@ -1,122 +1,122 @@
-<?php
-
-declare(strict_types=1);
-
-/*
- * This file is part of the WebPush library.
- *
- * (c) Louis Lagrange <lagrange.louis@gmail.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Minishlink\WebPush;
-
-class Subscription implements SubscriptionInterface
-{
-    /** @var string */
-    private $endpoint;
-
-    /** @var null|string */
-    private $publicKey;
-
-    /** @var null|string */
-    private $authToken;
-
-    /** @var null|string */
-    private $contentEncoding;
-
-    /**
-     * Subscription constructor.
-     *
-     * @param string $endpoint
-     * @param null|string $publicKey
-     * @param null|string $authToken
-     * @param string $contentEncoding (Optional) Must be "aesgcm"
-     * @throws \ErrorException
-     */
-    public function __construct(
-        string $endpoint,
-        ?string $publicKey = null,
-        ?string $authToken = null,
-        ?string $contentEncoding = null
-    ) {
-        $this->endpoint = $endpoint;
-
-        if ($publicKey || $authToken || $contentEncoding) {
-            $supportedContentEncodings = ['aesgcm', 'aes128gcm'];
-            if ($contentEncoding && !in_array($contentEncoding, $supportedContentEncodings)) {
-                throw new \ErrorException('This content encoding ('.$contentEncoding.') is not supported.');
-            }
-
-            $this->publicKey = $publicKey;
-            $this->authToken = $authToken;
-            $this->contentEncoding = $contentEncoding ?: "aesgcm";
-        }
-    }
-
-    /**
-     * Subscription factory.
-     *
-     * @param array $associativeArray (with keys endpoint, publicKey, authToken, contentEncoding)
-     * @return self
-     * @throws \ErrorException
-     */
-    public static function create(array $associativeArray): self
-    {
-        if (array_key_exists('keys', $associativeArray) && is_array($associativeArray['keys'])) {
-            return new self(
-                $associativeArray['endpoint'],
-                $associativeArray['keys']['p256dh'] ?? null,
-                $associativeArray['keys']['auth'] ?? null,
-                $associativeArray['contentEncoding'] ?? "aesgcm"
-            );
-        }
-
-        if (array_key_exists('publicKey', $associativeArray) || array_key_exists('authToken', $associativeArray) || array_key_exists('contentEncoding', $associativeArray)) {
-            return new self(
-                $associativeArray['endpoint'],
-                $associativeArray['publicKey'] ?? null,
-                $associativeArray['authToken'] ?? null,
-                $associativeArray['contentEncoding'] ?? "aesgcm"
-            );
-        }
-
-        return new self(
-            $associativeArray['endpoint']
-        );
-    }
-
-    /**
-     * {@inheritDoc}
-     */
-    public function getEndpoint(): string
-    {
-        return $this->endpoint;
-    }
-
-    /**
-     * {@inheritDoc}
-     */
-    public function getPublicKey(): ?string
-    {
-        return $this->publicKey;
-    }
-
-    /**
-     * {@inheritDoc}
-     */
-    public function getAuthToken(): ?string
-    {
-        return $this->authToken;
-    }
-
-    /**
-     * {@inheritDoc}
-     */
-    public function getContentEncoding(): ?string
-    {
-        return $this->contentEncoding;
-    }
-}
+<?php

+

+declare(strict_types=1);

+

+/*

+ * This file is part of the WebPush library.

+ *

+ * (c) Louis Lagrange <lagrange.louis@gmail.com>

+ *

+ * For the full copyright and license information, please view the LICENSE

+ * file that was distributed with this source code.

+ */

+

+namespace Minishlink\WebPush;

+

+class Subscription implements SubscriptionInterface

+{

+    /** @var string */

+    private $endpoint;

+

+    /** @var null|string */

+    private $publicKey;

+

+    /** @var null|string */

+    private $authToken;

+

+    /** @var null|string */

+    private $contentEncoding;

+

+    /**

+     * Subscription constructor.

+     *

+     * @param string $endpoint

+     * @param null|string $publicKey

+     * @param null|string $authToken

+     * @param string $contentEncoding (Optional) Must be "aesgcm"

+     * @throws \ErrorException

+     */

+    public function __construct(

+        string $endpoint,

+        ?string $publicKey = null,

+        ?string $authToken = null,

+        ?string $contentEncoding = null

+    ) {

+        $this->endpoint = $endpoint;

+

+        if ($publicKey || $authToken || $contentEncoding) {

+            $supportedContentEncodings = ['aesgcm', 'aes128gcm'];

+            if ($contentEncoding && !in_array($contentEncoding, $supportedContentEncodings)) {

+                throw new \ErrorException('This content encoding ('.$contentEncoding.') is not supported.');

+            }

+

+            $this->publicKey = $publicKey;

+            $this->authToken = $authToken;

+            $this->contentEncoding = $contentEncoding ?: "aesgcm";

+        }

+    }

+

+    /**

+     * Subscription factory.

+     *

+     * @param array $associativeArray (with keys endpoint, publicKey, authToken, contentEncoding)

+     * @return self

+     * @throws \ErrorException

+     */

+    public static function create(array $associativeArray): self

+    {

+        if (array_key_exists('keys', $associativeArray) && is_array($associativeArray['keys'])) {

+            return new self(

+                $associativeArray['endpoint'],

+                $associativeArray['keys']['p256dh'] ?? null,

+                $associativeArray['keys']['auth'] ?? null,

+                $associativeArray['contentEncoding'] ?? "aesgcm"

+            );

+        }

+

+        if (array_key_exists('publicKey', $associativeArray) || array_key_exists('authToken', $associativeArray) || array_key_exists('contentEncoding', $associativeArray)) {

+            return new self(

+                $associativeArray['endpoint'],

+                $associativeArray['publicKey'] ?? null,

+                $associativeArray['authToken'] ?? null,

+                $associativeArray['contentEncoding'] ?? "aesgcm"

+            );

+        }

+

+        return new self(

+            $associativeArray['endpoint']

+        );

+    }

+

+    /**

+     * {@inheritDoc}

+     */

+    public function getEndpoint(): string

+    {

+        return $this->endpoint;

+    }

+

+    /**

+     * {@inheritDoc}

+     */

+    public function getPublicKey(): ?string

+    {

+        return $this->publicKey;

+    }

+

+    /**

+     * {@inheritDoc}

+     */

+    public function getAuthToken(): ?string

+    {

+        return $this->authToken;

+    }

+

+    /**

+     * {@inheritDoc}

+     */

+    public function getContentEncoding(): ?string

+    {

+        return $this->contentEncoding;

+    }

+}

diff --git a/vendor/minishlink/web-push/src/SubscriptionInterface.php b/vendor/minishlink/web-push/src/SubscriptionInterface.php
index e3f18d6..9e09bed 100644
--- a/vendor/minishlink/web-push/src/SubscriptionInterface.php
+++ b/vendor/minishlink/web-push/src/SubscriptionInterface.php
@@ -1,40 +1,40 @@
-<?php
-
-declare(strict_types=1);
-
-/*
- * This file is part of the WebPush library.
- *
- * (c) Louis Lagrange <lagrange.louis@gmail.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Minishlink\WebPush;
-
-/**
- * @author Sergii Bondarenko <sb@firstvector.org>
- */
-interface SubscriptionInterface
-{
-    /**
-     * @return string
-     */
-    public function getEndpoint(): string;
-
-    /**
-     * @return null|string
-     */
-    public function getPublicKey(): ?string;
-
-    /**
-     * @return null|string
-     */
-    public function getAuthToken(): ?string;
-
-    /**
-     * @return null|string
-     */
-    public function getContentEncoding(): ?string;
-}
+<?php

+

+declare(strict_types=1);

+

+/*

+ * This file is part of the WebPush library.

+ *

+ * (c) Louis Lagrange <lagrange.louis@gmail.com>

+ *

+ * For the full copyright and license information, please view the LICENSE

+ * file that was distributed with this source code.

+ */

+

+namespace Minishlink\WebPush;

+

+/**

+ * @author Sergii Bondarenko <sb@firstvector.org>

+ */

+interface SubscriptionInterface

+{

+    /**

+     * @return string

+     */

+    public function getEndpoint(): string;

+

+    /**

+     * @return null|string

+     */

+    public function getPublicKey(): ?string;

+

+    /**

+     * @return null|string

+     */

+    public function getAuthToken(): ?string;

+

+    /**

+     * @return null|string

+     */

+    public function getContentEncoding(): ?string;

+}

diff --git a/vendor/minishlink/web-push/src/Utils.php b/vendor/minishlink/web-push/src/Utils.php
index 30c2018..bd7f6c4 100644
--- a/vendor/minishlink/web-push/src/Utils.php
+++ b/vendor/minishlink/web-push/src/Utils.php
@@ -1,63 +1,63 @@
-<?php
-
-declare(strict_types=1);
-
-/*
- * This file is part of the WebPush library.
- *
- * (c) Louis Lagrange <lagrange.louis@gmail.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Minishlink\WebPush;
-
-use Jose\Component\Core\Util\Ecc\PublicKey;
-
-class Utils
-{
-    /**
-     * @param string $value
-     *
-     * @return int
-     */
-    public static function safeStrlen(string $value): int
-    {
-        return mb_strlen($value, '8bit');
-    }
-
-    /**
-     * @param PublicKey $publicKey
-     *
-     * @return string
-     */
-    public static function serializePublicKey(PublicKey $publicKey): string
-    {
-        $hexString = '04';
-        $hexString .= str_pad(gmp_strval($publicKey->getPoint()->getX(), 16), 64, '0', STR_PAD_LEFT);
-        $hexString .= str_pad(gmp_strval($publicKey->getPoint()->getY(), 16), 64, '0', STR_PAD_LEFT);
-
-        return $hexString;
-    }
-
-    /**
-     * @param string $data
-     *
-     * @return array
-     */
-    public static function unserializePublicKey(string $data): array
-    {
-        $data = bin2hex($data);
-        if (mb_substr($data, 0, 2, '8bit') !== '04') {
-            throw new \InvalidArgumentException('Invalid data: only uncompressed keys are supported.');
-        }
-        $data = mb_substr($data, 2, null, '8bit');
-        $dataLength = self::safeStrlen($data);
-
-        return [
-            hex2bin(mb_substr($data, 0, $dataLength / 2, '8bit')),
-            hex2bin(mb_substr($data, $dataLength / 2, null, '8bit')),
-        ];
-    }
-}
+<?php

+

+declare(strict_types=1);

+

+/*

+ * This file is part of the WebPush library.

+ *

+ * (c) Louis Lagrange <lagrange.louis@gmail.com>

+ *

+ * For the full copyright and license information, please view the LICENSE

+ * file that was distributed with this source code.

+ */

+

+namespace Minishlink\WebPush;

+

+use Jose\Component\Core\Util\Ecc\PublicKey;

+

+class Utils

+{

+    /**

+     * @param string $value

+     *

+     * @return int

+     */

+    public static function safeStrlen(string $value): int

+    {

+        return mb_strlen($value, '8bit');

+    }

+

+    /**

+     * @param PublicKey $publicKey

+     *

+     * @return string

+     */

+    public static function serializePublicKey(PublicKey $publicKey): string

+    {

+        $hexString = '04';

+        $hexString .= str_pad(gmp_strval($publicKey->getPoint()->getX(), 16), 64, '0', STR_PAD_LEFT);

+        $hexString .= str_pad(gmp_strval($publicKey->getPoint()->getY(), 16), 64, '0', STR_PAD_LEFT);

+

+        return $hexString;

+    }

+

+    /**

+     * @param string $data

+     *

+     * @return array

+     */

+    public static function unserializePublicKey(string $data): array

+    {

+        $data = bin2hex($data);

+        if (mb_substr($data, 0, 2, '8bit') !== '04') {

+            throw new \InvalidArgumentException('Invalid data: only uncompressed keys are supported.');

+        }

+        $data = mb_substr($data, 2, null, '8bit');

+        $dataLength = self::safeStrlen($data);

+

+        return [

+            hex2bin(mb_substr($data, 0, $dataLength / 2, '8bit')),

+            hex2bin(mb_substr($data, $dataLength / 2, null, '8bit')),

+        ];

+    }

+}

diff --git a/vendor/minishlink/web-push/src/VAPID.php b/vendor/minishlink/web-push/src/VAPID.php
index c741ec9..e1f555f 100644
--- a/vendor/minishlink/web-push/src/VAPID.php
+++ b/vendor/minishlink/web-push/src/VAPID.php
@@ -1,197 +1,197 @@
-<?php
-
-declare(strict_types=1);
-
-/*
- * This file is part of the WebPush library.
- *
- * (c) Louis Lagrange <lagrange.louis@gmail.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Minishlink\WebPush;
-
-use Base64Url\Base64Url;
-use Jose\Component\Core\AlgorithmManager;
-use Jose\Component\Core\Converter\StandardConverter;
-use Jose\Component\Core\JWK;
-use Jose\Component\Core\Util\Ecc\NistCurve;
-use Jose\Component\Core\Util\Ecc\Point;
-use Jose\Component\Core\Util\Ecc\PublicKey;
-use Jose\Component\KeyManagement\JWKFactory;
-use Jose\Component\Signature\Algorithm\ES256;
-use Jose\Component\Signature\JWSBuilder;
-use Jose\Component\Signature\Serializer\CompactSerializer;
-
-class VAPID
-{
-    private const PUBLIC_KEY_LENGTH = 65;
-    private const PRIVATE_KEY_LENGTH = 32;
-
-    /**
-     * @param array $vapid
-     *
-     * @return array
-     *
-     * @throws \ErrorException
-     */
-    public static function validate(array $vapid): array
-    {
-        if (!isset($vapid['subject'])) {
-            throw new \ErrorException('[VAPID] You must provide a subject that is either a mailto: or a URL.');
-        }
-
-        if (isset($vapid['pemFile'])) {
-            $vapid['pem'] = file_get_contents($vapid['pemFile']);
-
-            if (!$vapid['pem']) {
-                throw new \ErrorException('Error loading PEM file.');
-            }
-        }
-
-        if (isset($vapid['pem'])) {
-            $jwk = JWKFactory::createFromKey($vapid['pem']);
-            if ($jwk->get('kty') !== 'EC' || !$jwk->has('d') || !$jwk->has('x') || !$jwk->has('y')) {
-                throw new \ErrorException('Invalid PEM data.');
-            }
-            $publicKey = PublicKey::create(Point::create(
-                gmp_init(bin2hex(Base64Url::decode($jwk->get('x'))), 16),
-                gmp_init(bin2hex(Base64Url::decode($jwk->get('y'))), 16)
-            ));
-
-            $binaryPublicKey = hex2bin(Utils::serializePublicKey($publicKey));
-            if (!$binaryPublicKey) {
-                throw new \ErrorException('Failed to convert VAPID public key from hexadecimal to binary');
-            }
-            $vapid['publicKey'] = base64_encode($binaryPublicKey);
-            $vapid['privateKey'] = base64_encode(str_pad(Base64Url::decode($jwk->get('d')), 2 * self::PRIVATE_KEY_LENGTH, '0', STR_PAD_LEFT));
-        }
-
-        if (!isset($vapid['publicKey'])) {
-            throw new \ErrorException('[VAPID] You must provide a public key.');
-        }
-
-        $publicKey = Base64Url::decode($vapid['publicKey']);
-
-        if (Utils::safeStrlen($publicKey) !== self::PUBLIC_KEY_LENGTH) {
-            throw new \ErrorException('[VAPID] Public key should be 65 bytes long when decoded.');
-        }
-
-        if (!isset($vapid['privateKey'])) {
-            throw new \ErrorException('[VAPID] You must provide a private key.');
-        }
-
-        $privateKey = Base64Url::decode($vapid['privateKey']);
-
-        if (Utils::safeStrlen($privateKey) !== self::PRIVATE_KEY_LENGTH) {
-            throw new \ErrorException('[VAPID] Private key should be 32 bytes long when decoded.');
-        }
-
-        return [
-            'subject' => $vapid['subject'],
-            'publicKey' => $publicKey,
-            'privateKey' => $privateKey,
-        ];
-    }
-
-    /**
-     * This method takes the required VAPID parameters and returns the required
-     * header to be added to a Web Push Protocol Request.
-     *
-     * @param string $audience This must be the origin of the push service
-     * @param string $subject This should be a URL or a 'mailto:' email address
-     * @param string $publicKey The decoded VAPID public key
-     * @param string $privateKey The decoded VAPID private key
-     * @param string $contentEncoding
-     * @param null|int $expiration The expiration of the VAPID JWT. (UNIX timestamp)
-     *
-     * @return array Returns an array with the 'Authorization' and 'Crypto-Key' values to be used as headers
-     * @throws \ErrorException
-     */
-    public static function getVapidHeaders(string $audience, string $subject, string $publicKey, string $privateKey, string $contentEncoding, ?int $expiration = null)
-    {
-        $expirationLimit = time() + 43200; // equal margin of error between 0 and 24h
-        if (null === $expiration || $expiration > $expirationLimit) {
-            $expiration = $expirationLimit;
-        }
-
-        $header = [
-            'typ' => 'JWT',
-            'alg' => 'ES256',
-        ];
-
-        $jwtPayload = json_encode([
-            'aud' => $audience,
-            'exp' => $expiration,
-            'sub' => $subject,
-        ], JSON_UNESCAPED_SLASHES | JSON_NUMERIC_CHECK);
-        if (!$jwtPayload) {
-            throw new \ErrorException('Failed to encode JWT payload in JSON');
-        }
-
-        list($x, $y) = Utils::unserializePublicKey($publicKey);
-        $jwk = JWK::create([
-            'kty' => 'EC',
-            'crv' => 'P-256',
-            'x' => Base64Url::encode($x),
-            'y' => Base64Url::encode($y),
-            'd' => Base64Url::encode($privateKey),
-        ]);
-
-        $jsonConverter = new StandardConverter();
-        $jwsCompactSerializer = new CompactSerializer($jsonConverter);
-        $jwsBuilder = new JWSBuilder($jsonConverter, AlgorithmManager::create([new ES256()]));
-        $jws = $jwsBuilder
-            ->create()
-            ->withPayload($jwtPayload)
-            ->addSignature($jwk, $header)
-            ->build();
-
-        $jwt = $jwsCompactSerializer->serialize($jws, 0);
-        $encodedPublicKey = Base64Url::encode($publicKey);
-
-        if ($contentEncoding === "aesgcm") {
-            return [
-                'Authorization' => 'WebPush '.$jwt,
-                'Crypto-Key' => 'p256ecdsa='.$encodedPublicKey,
-            ];
-        } elseif ($contentEncoding === 'aes128gcm') {
-            return [
-                'Authorization' => 'vapid t='.$jwt.', k='.$encodedPublicKey,
-            ];
-        }
-
-        throw new \ErrorException('This content encoding is not supported');
-    }
-
-    /**
-     * This method creates VAPID keys in case you would not be able to have a Linux bash.
-     * DO NOT create keys at each initialization! Save those keys and reuse them.
-     *
-     * @return array
-     * @throws \ErrorException
-     */
-    public static function createVapidKeys(): array
-    {
-        $curve = NistCurve::curve256();
-        $privateKey = $curve->createPrivateKey();
-        $publicKey = $curve->createPublicKey($privateKey);
-
-        $binaryPublicKey = hex2bin(Utils::serializePublicKey($publicKey));
-        if (!$binaryPublicKey) {
-            throw new \ErrorException('Failed to convert VAPID public key from hexadecimal to binary');
-        }
-
-        $binaryPrivateKey = hex2bin(str_pad(gmp_strval($privateKey->getSecret(), 16), 2 * self::PRIVATE_KEY_LENGTH, '0', STR_PAD_LEFT));
-        if (!$binaryPrivateKey) {
-            throw new \ErrorException('Failed to convert VAPID private key from hexadecimal to binary');
-        }
-
-        return [
-            'publicKey'  => Base64Url::encode($binaryPublicKey),
-            'privateKey' => Base64Url::encode($binaryPrivateKey)
-        ];
-    }
-}
+<?php

+

+declare(strict_types=1);

+

+/*

+ * This file is part of the WebPush library.

+ *

+ * (c) Louis Lagrange <lagrange.louis@gmail.com>

+ *

+ * For the full copyright and license information, please view the LICENSE

+ * file that was distributed with this source code.

+ */

+

+namespace Minishlink\WebPush;

+

+use Base64Url\Base64Url;

+use Jose\Component\Core\AlgorithmManager;

+use Jose\Component\Core\Converter\StandardConverter;

+use Jose\Component\Core\JWK;

+use Jose\Component\Core\Util\Ecc\NistCurve;

+use Jose\Component\Core\Util\Ecc\Point;

+use Jose\Component\Core\Util\Ecc\PublicKey;

+use Jose\Component\KeyManagement\JWKFactory;

+use Jose\Component\Signature\Algorithm\ES256;

+use Jose\Component\Signature\JWSBuilder;

+use Jose\Component\Signature\Serializer\CompactSerializer;

+

+class VAPID

+{

+    private const PUBLIC_KEY_LENGTH = 65;

+    private const PRIVATE_KEY_LENGTH = 32;

+

+    /**

+     * @param array $vapid

+     *

+     * @return array

+     *

+     * @throws \ErrorException

+     */

+    public static function validate(array $vapid): array

+    {

+        if (!isset($vapid['subject'])) {

+            throw new \ErrorException('[VAPID] You must provide a subject that is either a mailto: or a URL.');

+        }

+

+        if (isset($vapid['pemFile'])) {

+            $vapid['pem'] = file_get_contents($vapid['pemFile']);

+

+            if (!$vapid['pem']) {

+                throw new \ErrorException('Error loading PEM file.');

+            }

+        }

+

+        if (isset($vapid['pem'])) {

+            $jwk = JWKFactory::createFromKey($vapid['pem']);

+            if ($jwk->get('kty') !== 'EC' || !$jwk->has('d') || !$jwk->has('x') || !$jwk->has('y')) {

+                throw new \ErrorException('Invalid PEM data.');

+            }

+            $publicKey = PublicKey::create(Point::create(

+                gmp_init(bin2hex(Base64Url::decode($jwk->get('x'))), 16),

+                gmp_init(bin2hex(Base64Url::decode($jwk->get('y'))), 16)

+            ));

+

+            $binaryPublicKey = hex2bin(Utils::serializePublicKey($publicKey));

+            if (!$binaryPublicKey) {

+                throw new \ErrorException('Failed to convert VAPID public key from hexadecimal to binary');

+            }

+            $vapid['publicKey'] = base64_encode($binaryPublicKey);

+            $vapid['privateKey'] = base64_encode(str_pad(Base64Url::decode($jwk->get('d')), 2 * self::PRIVATE_KEY_LENGTH, '0', STR_PAD_LEFT));

+        }

+

+        if (!isset($vapid['publicKey'])) {

+            throw new \ErrorException('[VAPID] You must provide a public key.');

+        }

+

+        $publicKey = Base64Url::decode($vapid['publicKey']);

+

+        if (Utils::safeStrlen($publicKey) !== self::PUBLIC_KEY_LENGTH) {

+            throw new \ErrorException('[VAPID] Public key should be 65 bytes long when decoded.');

+        }

+

+        if (!isset($vapid['privateKey'])) {

+            throw new \ErrorException('[VAPID] You must provide a private key.');

+        }

+

+        $privateKey = Base64Url::decode($vapid['privateKey']);

+

+        if (Utils::safeStrlen($privateKey) !== self::PRIVATE_KEY_LENGTH) {

+            throw new \ErrorException('[VAPID] Private key should be 32 bytes long when decoded.');

+        }

+

+        return [

+            'subject' => $vapid['subject'],

+            'publicKey' => $publicKey,

+            'privateKey' => $privateKey,

+        ];

+    }

+

+    /**

+     * This method takes the required VAPID parameters and returns the required

+     * header to be added to a Web Push Protocol Request.

+     *

+     * @param string $audience This must be the origin of the push service

+     * @param string $subject This should be a URL or a 'mailto:' email address

+     * @param string $publicKey The decoded VAPID public key

+     * @param string $privateKey The decoded VAPID private key

+     * @param string $contentEncoding

+     * @param null|int $expiration The expiration of the VAPID JWT. (UNIX timestamp)

+     *

+     * @return array Returns an array with the 'Authorization' and 'Crypto-Key' values to be used as headers

+     * @throws \ErrorException

+     */

+    public static function getVapidHeaders(string $audience, string $subject, string $publicKey, string $privateKey, string $contentEncoding, ?int $expiration = null)

+    {

+        $expirationLimit = time() + 43200; // equal margin of error between 0 and 24h

+        if (null === $expiration || $expiration > $expirationLimit) {

+            $expiration = $expirationLimit;

+        }

+

+        $header = [

+            'typ' => 'JWT',

+            'alg' => 'ES256',

+        ];

+

+        $jwtPayload = json_encode([

+            'aud' => $audience,

+            'exp' => $expiration,

+            'sub' => $subject,

+        ], JSON_UNESCAPED_SLASHES | JSON_NUMERIC_CHECK);

+        if (!$jwtPayload) {

+            throw new \ErrorException('Failed to encode JWT payload in JSON');

+        }

+

+        list($x, $y) = Utils::unserializePublicKey($publicKey);

+        $jwk = JWK::create([

+            'kty' => 'EC',

+            'crv' => 'P-256',

+            'x' => Base64Url::encode($x),

+            'y' => Base64Url::encode($y),

+            'd' => Base64Url::encode($privateKey),

+        ]);

+

+        $jsonConverter = new StandardConverter();

+        $jwsCompactSerializer = new CompactSerializer($jsonConverter);

+        $jwsBuilder = new JWSBuilder($jsonConverter, AlgorithmManager::create([new ES256()]));

+        $jws = $jwsBuilder

+            ->create()

+            ->withPayload($jwtPayload)

+            ->addSignature($jwk, $header)

+            ->build();

+

+        $jwt = $jwsCompactSerializer->serialize($jws, 0);

+        $encodedPublicKey = Base64Url::encode($publicKey);

+

+        if ($contentEncoding === "aesgcm") {

+            return [

+                'Authorization' => 'WebPush '.$jwt,

+                'Crypto-Key' => 'p256ecdsa='.$encodedPublicKey,

+            ];

+        } elseif ($contentEncoding === 'aes128gcm') {

+            return [

+                'Authorization' => 'vapid t='.$jwt.', k='.$encodedPublicKey,

+            ];

+        }

+

+        throw new \ErrorException('This content encoding is not supported');

+    }

+

+    /**

+     * This method creates VAPID keys in case you would not be able to have a Linux bash.

+     * DO NOT create keys at each initialization! Save those keys and reuse them.

+     *

+     * @return array

+     * @throws \ErrorException

+     */

+    public static function createVapidKeys(): array

+    {

+        $curve = NistCurve::curve256();

+        $privateKey = $curve->createPrivateKey();

+        $publicKey = $curve->createPublicKey($privateKey);

+

+        $binaryPublicKey = hex2bin(Utils::serializePublicKey($publicKey));

+        if (!$binaryPublicKey) {

+            throw new \ErrorException('Failed to convert VAPID public key from hexadecimal to binary');

+        }

+

+        $binaryPrivateKey = hex2bin(str_pad(gmp_strval($privateKey->getSecret(), 16), 2 * self::PRIVATE_KEY_LENGTH, '0', STR_PAD_LEFT));

+        if (!$binaryPrivateKey) {

+            throw new \ErrorException('Failed to convert VAPID private key from hexadecimal to binary');

+        }

+

+        return [

+            'publicKey'  => Base64Url::encode($binaryPublicKey),

+            'privateKey' => Base64Url::encode($binaryPrivateKey)

+        ];

+    }

+}

diff --git a/vendor/minishlink/web-push/src/WebPush.php b/vendor/minishlink/web-push/src/WebPush.php
index aaa9b4b..1f83812 100644
--- a/vendor/minishlink/web-push/src/WebPush.php
+++ b/vendor/minishlink/web-push/src/WebPush.php
@@ -1,412 +1,412 @@
-<?php
-
-declare(strict_types=1);
-
-/*
- * This file is part of the WebPush library.
- *
- * (c) Louis Lagrange <lagrange.louis@gmail.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Minishlink\WebPush;
-
-use Base64Url\Base64Url;
-use GuzzleHttp\Client;
-use GuzzleHttp\Exception\RequestException;
-use GuzzleHttp\Psr7\Request;
-use Psr\Http\Message\ResponseInterface;
-
-class WebPush
-{
-    public const GCM_URL = 'https://android.googleapis.com/gcm/send';
-    public const FCM_BASE_URL = 'https://fcm.googleapis.com';
-
-    /**
-     * @var Client
-     */
-    private $client;
-
-    /**
-     * @var array
-     */
-    private $auth;
-
-    /**
-     * @var null|array Array of array of Notifications
-     */
-    private $notifications;
-
-    /**
-     * @var array Default options : TTL, urgency, topic, batchSize
-     */
-    private $defaultOptions;
-
-    /**
-     * @var int Automatic padding of payloads, if disabled, trade security for bandwidth
-     */
-    private $automaticPadding = Encryption::MAX_COMPATIBILITY_PAYLOAD_LENGTH;
-
-    /**
-     * @var bool Reuse VAPID headers in the same flush session to improve performance
-     */
-    private $reuseVAPIDHeaders = false;
-
-    /**
-     * @var array Dictionary for VAPID headers cache
-     */
-    private $vapidHeaders = [];
-
-    /**
-     * WebPush constructor.
-     *
-     * @param array    $auth           Some servers needs authentication
-     * @param array    $defaultOptions TTL, urgency, topic, batchSize
-     * @param int|null $timeout        Timeout of POST request
-     * @param array    $clientOptions
-     *
-     * @throws \ErrorException
-     */
-    public function __construct(array $auth = [], array $defaultOptions = [], ?int $timeout = 30, array $clientOptions = [])
-    {
-        $extensions = [
-            'curl' => '[WebPush] curl extension is not loaded but is required. You can fix this in your php.ini.',
-            'gmp' => '[WebPush] gmp extension is not loaded but is required for sending push notifications with payload or for VAPID authentication. You can fix this in your php.ini.',
-            'mbstring' => '[WebPush] mbstring extension is not loaded but is required for sending push notifications with payload or for VAPID authentication. You can fix this in your php.ini.',
-            'openssl' => '[WebPush] openssl extension is not loaded but is required for sending push notifications with payload or for VAPID authentication. You can fix this in your php.ini.',
-        ];
-        foreach ($extensions as $extension => $message) {
-            if (!extension_loaded($extension)) {
-                trigger_error($message, E_USER_WARNING);
-            }
-        }
-
-        if (ini_get('mbstring.func_overload') >= 2) {
-            trigger_error("[WebPush] mbstring.func_overload is enabled for str* functions. You must disable it if you want to send push notifications with payload or use VAPID. You can fix this in your php.ini.", E_USER_NOTICE);
-        }
-
-        if (isset($auth['VAPID'])) {
-            $auth['VAPID'] = VAPID::validate($auth['VAPID']);
-        }
-
-        $this->auth = $auth;
-
-        $this->setDefaultOptions($defaultOptions);
-
-        if (!array_key_exists('timeout', $clientOptions) && isset($timeout)) {
-            $clientOptions['timeout'] = $timeout;
-        }
-        $this->client = new Client($clientOptions);
-    }
-
-    /**
-     * Send a notification.
-     *
-     * @param SubscriptionInterface $subscription
-     * @param string|null $payload If you want to send an array, json_encode it
-     * @param bool $flush If you want to flush directly (usually when you send only one notification)
-     * @param array $options Array with several options tied to this notification. If not set, will use the default options that you can set in the WebPush object
-     * @param array $auth Use this auth details instead of what you provided when creating WebPush
-     *
-     * @return \Generator|MessageSentReport[]|true Return an array of information if $flush is set to true and the queued requests has failed.
-     *                    Else return true
-     *
-     * @throws \ErrorException
-     */
-    public function sendNotification(SubscriptionInterface $subscription, ?string $payload = null, bool $flush = false, array $options = [], array $auth = [])
-    {
-        if (isset($payload)) {
-            if (Utils::safeStrlen($payload) > Encryption::MAX_PAYLOAD_LENGTH) {
-                throw new \ErrorException('Size of payload must not be greater than '.Encryption::MAX_PAYLOAD_LENGTH.' octets.');
-            }
-
-            $contentEncoding = $subscription->getContentEncoding();
-            if (!$contentEncoding) {
-                throw new \ErrorException('Subscription should have a content encoding');
-            }
-
-            $payload = Encryption::padPayload($payload, $this->automaticPadding, $contentEncoding);
-        }
-
-        if (array_key_exists('VAPID', $auth)) {
-            $auth['VAPID'] = VAPID::validate($auth['VAPID']);
-        }
-
-        $this->notifications[] = new Notification($subscription, $payload, $options, $auth);
-
-        return false !== $flush ? $this->flush() : true;
-    }
-
-    /**
-     * Flush notifications. Triggers the requests.
-     *
-     * @param null|int $batchSize Defaults the value defined in defaultOptions during instantiation (which defaults to 1000).
-     *
-     * @return \Generator|MessageSentReport[]
-     * @throws \ErrorException
-     */
-    public function flush(?int $batchSize = null): \Generator
-    {
-        if (null === $this->notifications || empty($this->notifications)) {
-            yield from [];
-            return;
-        }
-
-        if (null === $batchSize) {
-            $batchSize = $this->defaultOptions['batchSize'];
-        }
-
-        $batches = array_chunk($this->notifications, $batchSize);
-
-        // reset queue
-        $this->notifications = [];
-
-        foreach ($batches as $batch) {
-            // for each endpoint server type
-            $requests = $this->prepare($batch);
-
-            $promises = [];
-
-            foreach ($requests as $request) {
-                $promises[] = $this->client->sendAsync($request)
-                    ->then(function ($response) use ($request) {
-                        /** @var ResponseInterface $response * */
-                        return new MessageSentReport($request, $response);
-                    })
-                    ->otherwise(function ($reason) {
-                        /** @var RequestException $reason **/
-                        return new MessageSentReport($reason->getRequest(), $reason->getResponse(), false, $reason->getMessage());
-                    });
-            }
-
-            foreach ($promises as $promise) {
-                yield $promise->wait();
-            }
-        }
-
-        if ($this->reuseVAPIDHeaders) {
-            $this->vapidHeaders = [];
-        }
-    }
-
-    /**
-     * @param array $notifications
-     *
-     * @return array
-     *
-     * @throws \ErrorException
-     */
-    private function prepare(array $notifications): array
-    {
-        $requests = [];
-        /** @var Notification $notification */
-        foreach ($notifications as $notification) {
-            $subscription = $notification->getSubscription();
-            $endpoint = $subscription->getEndpoint();
-            $userPublicKey = $subscription->getPublicKey();
-            $userAuthToken = $subscription->getAuthToken();
-            $contentEncoding = $subscription->getContentEncoding();
-            $payload = $notification->getPayload();
-            $options = $notification->getOptions($this->getDefaultOptions());
-            $auth = $notification->getAuth($this->auth);
-
-            if (!empty($payload) && !empty($userPublicKey) && !empty($userAuthToken)) {
-                if (!$contentEncoding) {
-                    throw new \ErrorException('Subscription should have a content encoding');
-                }
-
-                $encrypted = Encryption::encrypt($payload, $userPublicKey, $userAuthToken, $contentEncoding);
-                $cipherText = $encrypted['cipherText'];
-                $salt = $encrypted['salt'];
-                $localPublicKey = $encrypted['localPublicKey'];
-
-                $headers = [
-                    'Content-Type' => 'application/octet-stream',
-                    'Content-Encoding' => $contentEncoding,
-                ];
-
-                if ($contentEncoding === "aesgcm") {
-                    $headers['Encryption'] = 'salt='.Base64Url::encode($salt);
-                    $headers['Crypto-Key'] = 'dh='.Base64Url::encode($localPublicKey);
-                }
-
-                $encryptionContentCodingHeader = Encryption::getContentCodingHeader($salt, $localPublicKey, $contentEncoding);
-                $content = $encryptionContentCodingHeader.$cipherText;
-
-                $headers['Content-Length'] = Utils::safeStrlen($content);
-            } else {
-                $headers = [
-                    'Content-Length' => 0,
-                ];
-
-                $content = '';
-            }
-
-            $headers['TTL'] = $options['TTL'];
-
-            if (isset($options['urgency'])) {
-                $headers['Urgency'] = $options['urgency'];
-            }
-
-            if (isset($options['topic'])) {
-                $headers['Topic'] = $options['topic'];
-            }
-
-            // if GCM
-            if (substr($endpoint, 0, strlen(self::GCM_URL)) === self::GCM_URL) {
-                if (array_key_exists('GCM', $auth)) {
-                    $headers['Authorization'] = 'key='.$auth['GCM'];
-                } else {
-                    throw new \ErrorException('No GCM API Key specified.');
-                }
-            }
-            // if VAPID (GCM doesn't support it but FCM does)
-            elseif (array_key_exists('VAPID', $auth) && $contentEncoding) {
-                $audience = parse_url($endpoint, PHP_URL_SCHEME).'://'.parse_url($endpoint, PHP_URL_HOST);
-                if (!parse_url($audience)) {
-                    throw new \ErrorException('Audience "'.$audience.'"" could not be generated.');
-                }
-
-                $vapidHeaders = $this->getVAPIDHeaders($audience, $contentEncoding, $auth['VAPID']);
-
-                $headers['Authorization'] = $vapidHeaders['Authorization'];
-
-                if ($contentEncoding === 'aesgcm') {
-                    if (array_key_exists('Crypto-Key', $headers)) {
-                        $headers['Crypto-Key'] .= ';'.$vapidHeaders['Crypto-Key'];
-                    } else {
-                        $headers['Crypto-Key'] = $vapidHeaders['Crypto-Key'];
-                    }
-                }
-            }
-
-            $requests[] = new Request('POST', $endpoint, $headers, $content);
-        }
-
-        return $requests;
-    }
-
-    /**
-     * @return bool
-     */
-    public function isAutomaticPadding(): bool
-    {
-        return $this->automaticPadding !== 0;
-    }
-
-    /**
-     * @return int
-     */
-    public function getAutomaticPadding()
-    {
-        return $this->automaticPadding;
-    }
-
-    /**
-     * @param int|bool $automaticPadding Max padding length
-     *
-     * @return WebPush
-     *
-     * @throws \Exception
-     */
-    public function setAutomaticPadding($automaticPadding): WebPush
-    {
-        if ($automaticPadding > Encryption::MAX_PAYLOAD_LENGTH) {
-            throw new \Exception('Automatic padding is too large. Max is '.Encryption::MAX_PAYLOAD_LENGTH.'. Recommended max is '.Encryption::MAX_COMPATIBILITY_PAYLOAD_LENGTH.' for compatibility reasons (see README).');
-        } elseif ($automaticPadding < 0) {
-            throw new \Exception('Padding length should be positive or zero.');
-        } elseif ($automaticPadding === true) {
-            $this->automaticPadding = Encryption::MAX_COMPATIBILITY_PAYLOAD_LENGTH;
-        } elseif ($automaticPadding === false) {
-            $this->automaticPadding = 0;
-        } else {
-            $this->automaticPadding = $automaticPadding;
-        }
-
-        return $this;
-    }
-
-    /**
-     * @return bool
-     */
-    public function getReuseVAPIDHeaders()
-    {
-        return $this->reuseVAPIDHeaders;
-    }
-
-    /**
-     * Reuse VAPID headers in the same flush session to improve performance
-     * @param bool $enabled
-     *
-     * @return WebPush
-     */
-    public function setReuseVAPIDHeaders(bool $enabled)
-    {
-        $this->reuseVAPIDHeaders = $enabled;
-
-        return $this;
-    }
-
-    /**
-     * @return array
-     */
-    public function getDefaultOptions(): array
-    {
-        return $this->defaultOptions;
-    }
-
-    /**
-     * @param array $defaultOptions Keys 'TTL' (Time To Live, defaults 4 weeks), 'urgency', 'topic', 'batchSize'
-     *
-     * @return WebPush
-     */
-    public function setDefaultOptions(array $defaultOptions)
-    {
-        $this->defaultOptions['TTL'] = isset($defaultOptions['TTL']) ? $defaultOptions['TTL'] : 2419200;
-        $this->defaultOptions['urgency'] = isset($defaultOptions['urgency']) ? $defaultOptions['urgency'] : null;
-        $this->defaultOptions['topic'] = isset($defaultOptions['topic']) ? $defaultOptions['topic'] : null;
-        $this->defaultOptions['batchSize'] = isset($defaultOptions['batchSize']) ? $defaultOptions['batchSize'] : 1000;
-
-        return $this;
-    }
-
-    /**
-     * @return int
-     */
-    public function countPendingNotifications(): int
-    {
-        return null !== $this->notifications ? count($this->notifications) : 0;
-    }
-
-    /**
-     * @param string $audience
-     * @param string $contentEncoding
-     * @param array $vapid
-     * @return array
-     * @throws \ErrorException
-     */
-    private function getVAPIDHeaders(string $audience, string $contentEncoding, array $vapid)
-    {
-        $vapidHeaders = null;
-
-        $cache_key = null;
-        if ($this->reuseVAPIDHeaders) {
-            $cache_key = implode('#', [$audience, $contentEncoding, crc32(serialize($vapid))]);
-            if (array_key_exists($cache_key, $this->vapidHeaders)) {
-                $vapidHeaders = $this->vapidHeaders[$cache_key];
-            }
-        }
-
-        if (!$vapidHeaders) {
-            $vapidHeaders = VAPID::getVapidHeaders($audience, $vapid['subject'], $vapid['publicKey'], $vapid['privateKey'], $contentEncoding);
-        }
-
-        if ($this->reuseVAPIDHeaders) {
-            $this->vapidHeaders[$cache_key] = $vapidHeaders;
-        }
-
-        return $vapidHeaders;
-    }
-}
+<?php

+

+declare(strict_types=1);

+

+/*

+ * This file is part of the WebPush library.

+ *

+ * (c) Louis Lagrange <lagrange.louis@gmail.com>

+ *

+ * For the full copyright and license information, please view the LICENSE

+ * file that was distributed with this source code.

+ */

+

+namespace Minishlink\WebPush;

+

+use Base64Url\Base64Url;

+use GuzzleHttp\Client;

+use GuzzleHttp\Exception\RequestException;

+use GuzzleHttp\Psr7\Request;

+use Psr\Http\Message\ResponseInterface;

+

+class WebPush

+{

+    public const GCM_URL = 'https://android.googleapis.com/gcm/send';

+    public const FCM_BASE_URL = 'https://fcm.googleapis.com';

+

+    /**

+     * @var Client

+     */

+    private $client;

+

+    /**

+     * @var array

+     */

+    private $auth;

+

+    /**

+     * @var null|array Array of array of Notifications

+     */

+    private $notifications;

+

+    /**

+     * @var array Default options : TTL, urgency, topic, batchSize

+     */

+    private $defaultOptions;

+

+    /**

+     * @var int Automatic padding of payloads, if disabled, trade security for bandwidth

+     */

+    private $automaticPadding = Encryption::MAX_COMPATIBILITY_PAYLOAD_LENGTH;

+

+    /**

+     * @var bool Reuse VAPID headers in the same flush session to improve performance

+     */

+    private $reuseVAPIDHeaders = false;

+

+    /**

+     * @var array Dictionary for VAPID headers cache

+     */

+    private $vapidHeaders = [];

+

+    /**

+     * WebPush constructor.

+     *

+     * @param array    $auth           Some servers needs authentication

+     * @param array    $defaultOptions TTL, urgency, topic, batchSize

+     * @param int|null $timeout        Timeout of POST request

+     * @param array    $clientOptions

+     *

+     * @throws \ErrorException

+     */

+    public function __construct(array $auth = [], array $defaultOptions = [], ?int $timeout = 30, array $clientOptions = [])

+    {

+        $extensions = [

+            'curl' => '[WebPush] curl extension is not loaded but is required. You can fix this in your php.ini.',

+            'gmp' => '[WebPush] gmp extension is not loaded but is required for sending push notifications with payload or for VAPID authentication. You can fix this in your php.ini.',

+            'mbstring' => '[WebPush] mbstring extension is not loaded but is required for sending push notifications with payload or for VAPID authentication. You can fix this in your php.ini.',

+            'openssl' => '[WebPush] openssl extension is not loaded but is required for sending push notifications with payload or for VAPID authentication. You can fix this in your php.ini.',

+        ];

+        foreach ($extensions as $extension => $message) {

+            if (!extension_loaded($extension)) {

+                trigger_error($message, E_USER_WARNING);

+            }

+        }

+

+        if (ini_get('mbstring.func_overload') >= 2) {

+            trigger_error("[WebPush] mbstring.func_overload is enabled for str* functions. You must disable it if you want to send push notifications with payload or use VAPID. You can fix this in your php.ini.", E_USER_NOTICE);

+        }

+

+        if (isset($auth['VAPID'])) {

+            $auth['VAPID'] = VAPID::validate($auth['VAPID']);

+        }

+

+        $this->auth = $auth;

+

+        $this->setDefaultOptions($defaultOptions);

+

+        if (!array_key_exists('timeout', $clientOptions) && isset($timeout)) {

+            $clientOptions['timeout'] = $timeout;

+        }

+        $this->client = new Client($clientOptions);

+    }

+

+    /**

+     * Send a notification.

+     *

+     * @param SubscriptionInterface $subscription

+     * @param string|null $payload If you want to send an array, json_encode it

+     * @param bool $flush If you want to flush directly (usually when you send only one notification)

+     * @param array $options Array with several options tied to this notification. If not set, will use the default options that you can set in the WebPush object

+     * @param array $auth Use this auth details instead of what you provided when creating WebPush

+     *

+     * @return \Generator|MessageSentReport[]|true Return an array of information if $flush is set to true and the queued requests has failed.

+     *                    Else return true

+     *

+     * @throws \ErrorException

+     */

+    public function sendNotification(SubscriptionInterface $subscription, ?string $payload = null, bool $flush = false, array $options = [], array $auth = [])

+    {

+        if (isset($payload)) {

+            if (Utils::safeStrlen($payload) > Encryption::MAX_PAYLOAD_LENGTH) {

+                throw new \ErrorException('Size of payload must not be greater than '.Encryption::MAX_PAYLOAD_LENGTH.' octets.');

+            }

+

+            $contentEncoding = $subscription->getContentEncoding();

+            if (!$contentEncoding) {

+                throw new \ErrorException('Subscription should have a content encoding');

+            }

+

+            $payload = Encryption::padPayload($payload, $this->automaticPadding, $contentEncoding);

+        }

+

+        if (array_key_exists('VAPID', $auth)) {

+            $auth['VAPID'] = VAPID::validate($auth['VAPID']);

+        }

+

+        $this->notifications[] = new Notification($subscription, $payload, $options, $auth);

+

+        return false !== $flush ? $this->flush() : true;

+    }

+

+    /**

+     * Flush notifications. Triggers the requests.

+     *

+     * @param null|int $batchSize Defaults the value defined in defaultOptions during instantiation (which defaults to 1000).

+     *

+     * @return \Generator|MessageSentReport[]

+     * @throws \ErrorException

+     */

+    public function flush(?int $batchSize = null): \Generator

+    {

+        if (null === $this->notifications || empty($this->notifications)) {

+            yield from [];

+            return;

+        }

+

+        if (null === $batchSize) {

+            $batchSize = $this->defaultOptions['batchSize'];

+        }

+

+        $batches = array_chunk($this->notifications, $batchSize);

+

+        // reset queue

+        $this->notifications = [];

+

+        foreach ($batches as $batch) {

+            // for each endpoint server type

+            $requests = $this->prepare($batch);

+

+            $promises = [];

+

+            foreach ($requests as $request) {

+                $promises[] = $this->client->sendAsync($request)

+                    ->then(function ($response) use ($request) {

+                        /** @var ResponseInterface $response * */

+                        return new MessageSentReport($request, $response);

+                    })

+                    ->otherwise(function ($reason) {

+                        /** @var RequestException $reason **/

+                        return new MessageSentReport($reason->getRequest(), $reason->getResponse(), false, $reason->getMessage());

+                    });

+            }

+

+            foreach ($promises as $promise) {

+                yield $promise->wait();

+            }

+        }

+

+        if ($this->reuseVAPIDHeaders) {

+            $this->vapidHeaders = [];

+        }

+    }

+

+    /**

+     * @param array $notifications

+     *

+     * @return array

+     *

+     * @throws \ErrorException

+     */

+    private function prepare(array $notifications): array

+    {

+        $requests = [];

+        /** @var Notification $notification */

+        foreach ($notifications as $notification) {

+            $subscription = $notification->getSubscription();

+            $endpoint = $subscription->getEndpoint();

+            $userPublicKey = $subscription->getPublicKey();

+            $userAuthToken = $subscription->getAuthToken();

+            $contentEncoding = $subscription->getContentEncoding();

+            $payload = $notification->getPayload();

+            $options = $notification->getOptions($this->getDefaultOptions());

+            $auth = $notification->getAuth($this->auth);

+

+            if (!empty($payload) && !empty($userPublicKey) && !empty($userAuthToken)) {

+                if (!$contentEncoding) {

+                    throw new \ErrorException('Subscription should have a content encoding');

+                }

+

+                $encrypted = Encryption::encrypt($payload, $userPublicKey, $userAuthToken, $contentEncoding);

+                $cipherText = $encrypted['cipherText'];

+                $salt = $encrypted['salt'];

+                $localPublicKey = $encrypted['localPublicKey'];

+

+                $headers = [

+                    'Content-Type' => 'application/octet-stream',

+                    'Content-Encoding' => $contentEncoding,

+                ];

+

+                if ($contentEncoding === "aesgcm") {

+                    $headers['Encryption'] = 'salt='.Base64Url::encode($salt);

+                    $headers['Crypto-Key'] = 'dh='.Base64Url::encode($localPublicKey);

+                }

+

+                $encryptionContentCodingHeader = Encryption::getContentCodingHeader($salt, $localPublicKey, $contentEncoding);

+                $content = $encryptionContentCodingHeader.$cipherText;

+

+                $headers['Content-Length'] = Utils::safeStrlen($content);

+            } else {

+                $headers = [

+                    'Content-Length' => 0,

+                ];

+

+                $content = '';

+            }

+

+            $headers['TTL'] = $options['TTL'];

+

+            if (isset($options['urgency'])) {

+                $headers['Urgency'] = $options['urgency'];

+            }

+

+            if (isset($options['topic'])) {

+                $headers['Topic'] = $options['topic'];

+            }

+

+            // if GCM

+            if (substr($endpoint, 0, strlen(self::GCM_URL)) === self::GCM_URL) {

+                if (array_key_exists('GCM', $auth)) {

+                    $headers['Authorization'] = 'key='.$auth['GCM'];

+                } else {

+                    throw new \ErrorException('No GCM API Key specified.');

+                }

+            }

+            // if VAPID (GCM doesn't support it but FCM does)

+            elseif (array_key_exists('VAPID', $auth) && $contentEncoding) {

+                $audience = parse_url($endpoint, PHP_URL_SCHEME).'://'.parse_url($endpoint, PHP_URL_HOST);

+                if (!parse_url($audience)) {

+                    throw new \ErrorException('Audience "'.$audience.'"" could not be generated.');

+                }

+

+                $vapidHeaders = $this->getVAPIDHeaders($audience, $contentEncoding, $auth['VAPID']);

+

+                $headers['Authorization'] = $vapidHeaders['Authorization'];

+

+                if ($contentEncoding === 'aesgcm') {

+                    if (array_key_exists('Crypto-Key', $headers)) {

+                        $headers['Crypto-Key'] .= ';'.$vapidHeaders['Crypto-Key'];

+                    } else {

+                        $headers['Crypto-Key'] = $vapidHeaders['Crypto-Key'];

+                    }

+                }

+            }

+

+            $requests[] = new Request('POST', $endpoint, $headers, $content);

+        }

+

+        return $requests;

+    }

+

+    /**

+     * @return bool

+     */

+    public function isAutomaticPadding(): bool

+    {

+        return $this->automaticPadding !== 0;

+    }

+

+    /**

+     * @return int

+     */

+    public function getAutomaticPadding()

+    {

+        return $this->automaticPadding;

+    }

+

+    /**

+     * @param int|bool $automaticPadding Max padding length

+     *

+     * @return WebPush

+     *

+     * @throws \Exception

+     */

+    public function setAutomaticPadding($automaticPadding): WebPush

+    {

+        if ($automaticPadding > Encryption::MAX_PAYLOAD_LENGTH) {

+            throw new \Exception('Automatic padding is too large. Max is '.Encryption::MAX_PAYLOAD_LENGTH.'. Recommended max is '.Encryption::MAX_COMPATIBILITY_PAYLOAD_LENGTH.' for compatibility reasons (see README).');

+        } elseif ($automaticPadding < 0) {

+            throw new \Exception('Padding length should be positive or zero.');

+        } elseif ($automaticPadding === true) {

+            $this->automaticPadding = Encryption::MAX_COMPATIBILITY_PAYLOAD_LENGTH;

+        } elseif ($automaticPadding === false) {

+            $this->automaticPadding = 0;

+        } else {

+            $this->automaticPadding = $automaticPadding;

+        }

+

+        return $this;

+    }

+

+    /**

+     * @return bool

+     */

+    public function getReuseVAPIDHeaders()

+    {

+        return $this->reuseVAPIDHeaders;

+    }

+

+    /**

+     * Reuse VAPID headers in the same flush session to improve performance

+     * @param bool $enabled

+     *

+     * @return WebPush

+     */

+    public function setReuseVAPIDHeaders(bool $enabled)

+    {

+        $this->reuseVAPIDHeaders = $enabled;

+

+        return $this;

+    }

+

+    /**

+     * @return array

+     */

+    public function getDefaultOptions(): array

+    {

+        return $this->defaultOptions;

+    }

+

+    /**

+     * @param array $defaultOptions Keys 'TTL' (Time To Live, defaults 4 weeks), 'urgency', 'topic', 'batchSize'

+     *

+     * @return WebPush

+     */

+    public function setDefaultOptions(array $defaultOptions)

+    {

+        $this->defaultOptions['TTL'] = isset($defaultOptions['TTL']) ? $defaultOptions['TTL'] : 2419200;

+        $this->defaultOptions['urgency'] = isset($defaultOptions['urgency']) ? $defaultOptions['urgency'] : null;

+        $this->defaultOptions['topic'] = isset($defaultOptions['topic']) ? $defaultOptions['topic'] : null;

+        $this->defaultOptions['batchSize'] = isset($defaultOptions['batchSize']) ? $defaultOptions['batchSize'] : 1000;

+

+        return $this;

+    }

+

+    /**

+     * @return int

+     */

+    public function countPendingNotifications(): int

+    {

+        return null !== $this->notifications ? count($this->notifications) : 0;

+    }

+

+    /**

+     * @param string $audience

+     * @param string $contentEncoding

+     * @param array $vapid

+     * @return array

+     * @throws \ErrorException

+     */

+    private function getVAPIDHeaders(string $audience, string $contentEncoding, array $vapid)

+    {

+        $vapidHeaders = null;

+

+        $cache_key = null;

+        if ($this->reuseVAPIDHeaders) {

+            $cache_key = implode('#', [$audience, $contentEncoding, crc32(serialize($vapid))]);

+            if (array_key_exists($cache_key, $this->vapidHeaders)) {

+                $vapidHeaders = $this->vapidHeaders[$cache_key];

+            }

+        }

+

+        if (!$vapidHeaders) {

+            $vapidHeaders = VAPID::getVapidHeaders($audience, $vapid['subject'], $vapid['publicKey'], $vapid['privateKey'], $contentEncoding);

+        }

+

+        if ($this->reuseVAPIDHeaders) {

+            $this->vapidHeaders[$cache_key] = $vapidHeaders;

+        }

+

+        return $vapidHeaders;

+    }

+}