Index: vendor/firebase/php-jwt/README.md
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+![Build Status](https://github.com/firebase/php-jwt/actions/workflows/tests.yml/badge.svg)
+[![Latest Stable Version](https://poser.pugx.org/firebase/php-jwt/v/stable)](https://packagist.org/packages/firebase/php-jwt)
+[![Total Downloads](https://poser.pugx.org/firebase/php-jwt/downloads)](https://packagist.org/packages/firebase/php-jwt)
+[![License](https://poser.pugx.org/firebase/php-jwt/license)](https://packagist.org/packages/firebase/php-jwt)
+
+PHP-JWT
+=======
+A simple library to encode and decode JSON Web Tokens (JWT) in PHP, conforming to [RFC 7519](https://tools.ietf.org/html/rfc7519).
+
+Installation
+------------
+
+Use composer to manage your dependencies and download PHP-JWT:
+
+```bash
+composer require firebase/php-jwt
+```
+
+Optionally, install the `paragonie/sodium_compat` package from composer if your
+php env does not have libsodium installed:
+
+```bash
+composer require paragonie/sodium_compat
+```
+
+Example
+-------
+```php
+use Firebase\JWT\JWT;
+use Firebase\JWT\Key;
+
+$key = 'example_key';
+$payload = [
+    'iss' => 'http://example.org',
+    'aud' => 'http://example.com',
+    'iat' => 1356999524,
+    'nbf' => 1357000000
+];
+
+/**
+ * IMPORTANT:
+ * You must specify supported algorithms for your application. See
+ * https://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-40
+ * for a list of spec-compliant algorithms.
+ */
+$jwt = JWT::encode($payload, $key, 'HS256');
+$decoded = JWT::decode($jwt, new Key($key, 'HS256'));
+print_r($decoded);
+
+// Pass a stdClass in as the third parameter to get the decoded header values
+$decoded = JWT::decode($jwt, new Key($key, 'HS256'), $headers = new stdClass());
+print_r($headers);
+
+/*
+ NOTE: This will now be an object instead of an associative array. To get
+ an associative array, you will need to cast it as such:
+*/
+
+$decoded_array = (array) $decoded;
+
+/**
+ * You can add a leeway to account for when there is a clock skew times between
+ * the signing and verifying servers. It is recommended that this leeway should
+ * not be bigger than a few minutes.
+ *
+ * Source: http://self-issued.info/docs/draft-ietf-oauth-json-web-token.html#nbfDef
+ */
+JWT::$leeway = 60; // $leeway in seconds
+$decoded = JWT::decode($jwt, new Key($key, 'HS256'));
+```
+Example encode/decode headers
+-------
+Decoding the JWT headers without verifying the JWT first is NOT recommended, and is not supported by
+this library. This is because without verifying the JWT, the header values could have been tampered with.
+Any value pulled from an unverified header should be treated as if it could be any string sent in from an
+attacker.  If this is something you still want to do in your application for whatever reason, it's possible to
+decode the header values manually simply by calling `json_decode` and `base64_decode` on the JWT
+header part:
+```php
+use Firebase\JWT\JWT;
+
+$key = 'example_key';
+$payload = [
+    'iss' => 'http://example.org',
+    'aud' => 'http://example.com',
+    'iat' => 1356999524,
+    'nbf' => 1357000000
+];
+
+$headers = [
+    'x-forwarded-for' => 'www.google.com'
+];
+
+// Encode headers in the JWT string
+$jwt = JWT::encode($payload, $key, 'HS256', null, $headers);
+
+// Decode headers from the JWT string WITHOUT validation
+// **IMPORTANT**: This operation is vulnerable to attacks, as the JWT has not yet been verified.
+// These headers could be any value sent by an attacker.
+list($headersB64, $payloadB64, $sig) = explode('.', $jwt);
+$decoded = json_decode(base64_decode($headersB64), true);
+
+print_r($decoded);
+```
+Example with RS256 (openssl)
+----------------------------
+```php
+use Firebase\JWT\JWT;
+use Firebase\JWT\Key;
+
+$privateKey = <<<EOD
+-----BEGIN RSA PRIVATE KEY-----
+MIIEowIBAAKCAQEAuzWHNM5f+amCjQztc5QTfJfzCC5J4nuW+L/aOxZ4f8J3Frew
+M2c/dufrnmedsApb0By7WhaHlcqCh/ScAPyJhzkPYLae7bTVro3hok0zDITR8F6S
+JGL42JAEUk+ILkPI+DONM0+3vzk6Kvfe548tu4czCuqU8BGVOlnp6IqBHhAswNMM
+78pos/2z0CjPM4tbeXqSTTbNkXRboxjU29vSopcT51koWOgiTf3C7nJUoMWZHZI5
+HqnIhPAG9yv8HAgNk6CMk2CadVHDo4IxjxTzTTqo1SCSH2pooJl9O8at6kkRYsrZ
+WwsKlOFE2LUce7ObnXsYihStBUDoeBQlGG/BwQIDAQABAoIBAFtGaOqNKGwggn9k
+6yzr6GhZ6Wt2rh1Xpq8XUz514UBhPxD7dFRLpbzCrLVpzY80LbmVGJ9+1pJozyWc
+VKeCeUdNwbqkr240Oe7GTFmGjDoxU+5/HX/SJYPpC8JZ9oqgEA87iz+WQX9hVoP2
+oF6EB4ckDvXmk8FMwVZW2l2/kd5mrEVbDaXKxhvUDf52iVD+sGIlTif7mBgR99/b
+c3qiCnxCMmfYUnT2eh7Vv2LhCR/G9S6C3R4lA71rEyiU3KgsGfg0d82/XWXbegJW
+h3QbWNtQLxTuIvLq5aAryV3PfaHlPgdgK0ft6ocU2de2FagFka3nfVEyC7IUsNTK
+bq6nhAECgYEA7d/0DPOIaItl/8BWKyCuAHMss47j0wlGbBSHdJIiS55akMvnAG0M
+39y22Qqfzh1at9kBFeYeFIIU82ZLF3xOcE3z6pJZ4Dyvx4BYdXH77odo9uVK9s1l
+3T3BlMcqd1hvZLMS7dviyH79jZo4CXSHiKzc7pQ2YfK5eKxKqONeXuECgYEAyXlG
+vonaus/YTb1IBei9HwaccnQ/1HRn6MvfDjb7JJDIBhNClGPt6xRlzBbSZ73c2QEC
+6Fu9h36K/HZ2qcLd2bXiNyhIV7b6tVKk+0Psoj0dL9EbhsD1OsmE1nTPyAc9XZbb
+OPYxy+dpBCUA8/1U9+uiFoCa7mIbWcSQ+39gHuECgYAz82pQfct30aH4JiBrkNqP
+nJfRq05UY70uk5k1u0ikLTRoVS/hJu/d4E1Kv4hBMqYCavFSwAwnvHUo51lVCr/y
+xQOVYlsgnwBg2MX4+GjmIkqpSVCC8D7j/73MaWb746OIYZervQ8dbKahi2HbpsiG
+8AHcVSA/agxZr38qvWV54QKBgCD5TlDE8x18AuTGQ9FjxAAd7uD0kbXNz2vUYg9L
+hFL5tyL3aAAtUrUUw4xhd9IuysRhW/53dU+FsG2dXdJu6CxHjlyEpUJl2iZu/j15
+YnMzGWHIEX8+eWRDsw/+Ujtko/B7TinGcWPz3cYl4EAOiCeDUyXnqnO1btCEUU44
+DJ1BAoGBAJuPD27ErTSVtId90+M4zFPNibFP50KprVdc8CR37BE7r8vuGgNYXmnI
+RLnGP9p3pVgFCktORuYS2J/6t84I3+A17nEoB4xvhTLeAinAW/uTQOUmNicOP4Ek
+2MsLL2kHgL8bLTmvXV4FX+PXphrDKg1XxzOYn0otuoqdAQrkK4og
+-----END RSA PRIVATE KEY-----
+EOD;
+
+$publicKey = <<<EOD
+-----BEGIN PUBLIC KEY-----
+MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuzWHNM5f+amCjQztc5QT
+fJfzCC5J4nuW+L/aOxZ4f8J3FrewM2c/dufrnmedsApb0By7WhaHlcqCh/ScAPyJ
+hzkPYLae7bTVro3hok0zDITR8F6SJGL42JAEUk+ILkPI+DONM0+3vzk6Kvfe548t
+u4czCuqU8BGVOlnp6IqBHhAswNMM78pos/2z0CjPM4tbeXqSTTbNkXRboxjU29vS
+opcT51koWOgiTf3C7nJUoMWZHZI5HqnIhPAG9yv8HAgNk6CMk2CadVHDo4IxjxTz
+TTqo1SCSH2pooJl9O8at6kkRYsrZWwsKlOFE2LUce7ObnXsYihStBUDoeBQlGG/B
+wQIDAQAB
+-----END PUBLIC KEY-----
+EOD;
+
+$payload = [
+    'iss' => 'example.org',
+    'aud' => 'example.com',
+    'iat' => 1356999524,
+    'nbf' => 1357000000
+];
+
+$jwt = JWT::encode($payload, $privateKey, 'RS256');
+echo "Encode:\n" . print_r($jwt, true) . "\n";
+
+$decoded = JWT::decode($jwt, new Key($publicKey, 'RS256'));
+
+/*
+ NOTE: This will now be an object instead of an associative array. To get
+ an associative array, you will need to cast it as such:
+*/
+
+$decoded_array = (array) $decoded;
+echo "Decode:\n" . print_r($decoded_array, true) . "\n";
+```
+
+Example with a passphrase
+-------------------------
+
+```php
+use Firebase\JWT\JWT;
+use Firebase\JWT\Key;
+
+// Your passphrase
+$passphrase = '[YOUR_PASSPHRASE]';
+
+// Your private key file with passphrase
+// Can be generated with "ssh-keygen -t rsa -m pem"
+$privateKeyFile = '/path/to/key-with-passphrase.pem';
+
+// Create a private key of type "resource"
+$privateKey = openssl_pkey_get_private(
+    file_get_contents($privateKeyFile),
+    $passphrase
+);
+
+$payload = [
+    'iss' => 'example.org',
+    'aud' => 'example.com',
+    'iat' => 1356999524,
+    'nbf' => 1357000000
+];
+
+$jwt = JWT::encode($payload, $privateKey, 'RS256');
+echo "Encode:\n" . print_r($jwt, true) . "\n";
+
+// Get public key from the private key, or pull from from a file.
+$publicKey = openssl_pkey_get_details($privateKey)['key'];
+
+$decoded = JWT::decode($jwt, new Key($publicKey, 'RS256'));
+echo "Decode:\n" . print_r((array) $decoded, true) . "\n";
+```
+
+Example with EdDSA (libsodium and Ed25519 signature)
+----------------------------
+```php
+use Firebase\JWT\JWT;
+use Firebase\JWT\Key;
+
+// Public and private keys are expected to be Base64 encoded. The last
+// non-empty line is used so that keys can be generated with
+// sodium_crypto_sign_keypair(). The secret keys generated by other tools may
+// need to be adjusted to match the input expected by libsodium.
+
+$keyPair = sodium_crypto_sign_keypair();
+
+$privateKey = base64_encode(sodium_crypto_sign_secretkey($keyPair));
+
+$publicKey = base64_encode(sodium_crypto_sign_publickey($keyPair));
+
+$payload = [
+    'iss' => 'example.org',
+    'aud' => 'example.com',
+    'iat' => 1356999524,
+    'nbf' => 1357000000
+];
+
+$jwt = JWT::encode($payload, $privateKey, 'EdDSA');
+echo "Encode:\n" . print_r($jwt, true) . "\n";
+
+$decoded = JWT::decode($jwt, new Key($publicKey, 'EdDSA'));
+echo "Decode:\n" . print_r((array) $decoded, true) . "\n";
+````
+
+Example with multiple keys
+--------------------------
+```php
+use Firebase\JWT\JWT;
+use Firebase\JWT\Key;
+
+// Example RSA keys from previous example
+// $privateKey1 = '...';
+// $publicKey1 = '...';
+
+// Example EdDSA keys from previous example
+// $privateKey2 = '...';
+// $publicKey2 = '...';
+
+$payload = [
+    'iss' => 'example.org',
+    'aud' => 'example.com',
+    'iat' => 1356999524,
+    'nbf' => 1357000000
+];
+
+$jwt1 = JWT::encode($payload, $privateKey1, 'RS256', 'kid1');
+$jwt2 = JWT::encode($payload, $privateKey2, 'EdDSA', 'kid2');
+echo "Encode 1:\n" . print_r($jwt1, true) . "\n";
+echo "Encode 2:\n" . print_r($jwt2, true) . "\n";
+
+$keys = [
+    'kid1' => new Key($publicKey1, 'RS256'),
+    'kid2' => new Key($publicKey2, 'EdDSA'),
+];
+
+$decoded1 = JWT::decode($jwt1, $keys);
+$decoded2 = JWT::decode($jwt2, $keys);
+
+echo "Decode 1:\n" . print_r((array) $decoded1, true) . "\n";
+echo "Decode 2:\n" . print_r((array) $decoded2, true) . "\n";
+```
+
+Using JWKs
+----------
+
+```php
+use Firebase\JWT\JWK;
+use Firebase\JWT\JWT;
+
+// Set of keys. The "keys" key is required. For example, the JSON response to
+// this endpoint: https://www.gstatic.com/iap/verify/public_key-jwk
+$jwks = ['keys' => []];
+
+// JWK::parseKeySet($jwks) returns an associative array of **kid** to Firebase\JWT\Key
+// objects. Pass this as the second parameter to JWT::decode.
+JWT::decode($payload, JWK::parseKeySet($jwks));
+```
+
+Using Cached Key Sets
+---------------------
+
+The `CachedKeySet` class can be used to fetch and cache JWKS (JSON Web Key Sets) from a public URI.
+This has the following advantages:
+
+1. The results are cached for performance.
+2. If an unrecognized key is requested, the cache is refreshed, to accomodate for key rotation.
+3. If rate limiting is enabled, the JWKS URI will not make more than 10 requests a second.
+
+```php
+use Firebase\JWT\CachedKeySet;
+use Firebase\JWT\JWT;
+
+// The URI for the JWKS you wish to cache the results from
+$jwksUri = 'https://www.gstatic.com/iap/verify/public_key-jwk';
+
+// Create an HTTP client (can be any PSR-7 compatible HTTP client)
+$httpClient = new GuzzleHttp\Client();
+
+// Create an HTTP request factory (can be any PSR-17 compatible HTTP request factory)
+$httpFactory = new GuzzleHttp\Psr\HttpFactory();
+
+// Create a cache item pool (can be any PSR-6 compatible cache item pool)
+$cacheItemPool = Phpfastcache\CacheManager::getInstance('files');
+
+$keySet = new CachedKeySet(
+    $jwksUri,
+    $httpClient,
+    $httpFactory,
+    $cacheItemPool,
+    null, // $expiresAfter int seconds to set the JWKS to expire
+    true  // $rateLimit    true to enable rate limit of 10 RPS on lookup of invalid keys
+);
+
+$jwt = 'eyJhbGci...'; // Some JWT signed by a key from the $jwkUri above
+$decoded = JWT::decode($jwt, $keySet);
+```
+
+Miscellaneous
+-------------
+
+#### Exception Handling
+
+When a call to `JWT::decode` is invalid, it will throw one of the following exceptions:
+
+```php
+use Firebase\JWT\JWT;
+use Firebase\JWT\SignatureInvalidException;
+use Firebase\JWT\BeforeValidException;
+use Firebase\JWT\ExpiredException;
+use DomainException;
+use InvalidArgumentException;
+use UnexpectedValueException;
+
+try {
+    $decoded = JWT::decode($payload, $keys);
+} catch (InvalidArgumentException $e) {
+    // provided key/key-array is empty or malformed.
+} catch (DomainException $e) {
+    // provided algorithm is unsupported OR
+    // provided key is invalid OR
+    // unknown error thrown in openSSL or libsodium OR
+    // libsodium is required but not available.
+} catch (SignatureInvalidException $e) {
+    // provided JWT signature verification failed.
+} catch (BeforeValidException $e) {
+    // provided JWT is trying to be used before "nbf" claim OR
+    // provided JWT is trying to be used before "iat" claim.
+} catch (ExpiredException $e) {
+    // provided JWT is trying to be used after "exp" claim.
+} catch (UnexpectedValueException $e) {
+    // provided JWT is malformed OR
+    // provided JWT is missing an algorithm / using an unsupported algorithm OR
+    // provided JWT algorithm does not match provided key OR
+    // provided key ID in key/key-array is empty or invalid.
+}
+```
+
+All exceptions in the `Firebase\JWT` namespace extend `UnexpectedValueException`, and can be simplified
+like this:
+
+```php
+use Firebase\JWT\JWT;
+use UnexpectedValueException;
+try {
+    $decoded = JWT::decode($payload, $keys);
+} catch (LogicException $e) {
+    // errors having to do with environmental setup or malformed JWT Keys
+} catch (UnexpectedValueException $e) {
+    // errors having to do with JWT signature and claims
+}
+```
+
+#### Casting to array
+
+The return value of `JWT::decode` is the generic PHP object `stdClass`. If you'd like to handle with arrays
+instead, you can do the following:
+
+```php
+// return type is stdClass
+$decoded = JWT::decode($payload, $keys);
+
+// cast to array
+$decoded = json_decode(json_encode($decoded), true);
+```
+
+Tests
+-----
+Run the tests using phpunit:
+
+```bash
+$ pear install PHPUnit
+$ phpunit --configuration phpunit.xml.dist
+PHPUnit 3.7.10 by Sebastian Bergmann.
+.....
+Time: 0 seconds, Memory: 2.50Mb
+OK (5 tests, 5 assertions)
+```
+
+New Lines in private keys
+-----
+
+If your private key contains `\n` characters, be sure to wrap it in double quotes `""`
+and not single quotes `''` in order to properly interpret the escaped characters.
+
+License
+-------
+[3-Clause BSD](http://opensource.org/licenses/BSD-3-Clause).
