Update vendor dependencies

23 files changed, 249 insertions, 77 deletions

diff --git a/vendor/guzzlehttp/guzzle/.php_cs b/vendor/guzzlehttp/guzzle/.php_cs
index a8ace8aab9..2dd5036c1f 100644
--- a/vendor/guzzlehttp/guzzle/.php_cs
+++ b/vendor/guzzlehttp/guzzle/.php_cs
@@ -7,13 +7,15 @@ $config = PhpCsFixer\Config::create()
         'array_syntax' => ['syntax' => 'short'],
         'declare_strict_types' => false,
         'concat_space' => ['spacing'=>'one'],
-        // 'ordered_imports' => true,
+        'php_unit_test_case_static_method_calls' => ['call_type' => 'self'],
+        'ordered_imports' => true,
         // 'phpdoc_align' => ['align'=>'vertical'],
         // 'native_function_invocation' => true,
     ])
     ->setFinder(
         PhpCsFixer\Finder::create()
             ->in(__DIR__.'/src')
+            ->in(__DIR__.'/tests')
             ->name('*.php')
     )
 ;
diff --git a/vendor/guzzlehttp/guzzle/CHANGELOG.md b/vendor/guzzlehttp/guzzle/CHANGELOG.md
index 65557498ba..342e0b6c08 100644
--- a/vendor/guzzlehttp/guzzle/CHANGELOG.md
+++ b/vendor/guzzlehttp/guzzle/CHANGELOG.md
@@ -1,5 +1,14 @@
 # Change Log
 
+## 6.5.0 - 2019-11-07
+
+* Improvement: Added support for reset internal queue in MockHandler. [#2143](https://github.com/guzzle/guzzle/pull/2143)
+* Improvement: Added support to pass arbitrary options to `curl_multi_init`. [#2287](https://github.com/guzzle/guzzle/pull/2287)
+* Fix: Gracefully handle passing `null` to the `header` option. [#2132](https://github.com/guzzle/guzzle/pull/2132)
+* Fix: `RetryMiddleware` did not do exponential delay between retires due unit mismatch. [#2132](https://github.com/guzzle/guzzle/pull/2132)
+* Fix: Prevent undefined offset when using array for ssl_key options. [#2348](https://github.com/guzzle/guzzle/pull/2348)
+* Deprecated `ClientInterface::VERSION`
+
 ## 6.4.1 - 2019-10-23
 
 * No `guzzle.phar` was created in 6.4.0 due expired API token. This release will fix that 
diff --git a/vendor/guzzlehttp/guzzle/README.md b/vendor/guzzlehttp/guzzle/README.md
index a5ef18aee6..5fdb6c5f42 100644
--- a/vendor/guzzlehttp/guzzle/README.md
+++ b/vendor/guzzlehttp/guzzle/README.md
@@ -78,7 +78,7 @@ composer update
 |---------|------------|---------------------|--------------|---------------------|---------------------|-------|-------------|
 | 3.x     | EOL        | `guzzle/guzzle`     | `Guzzle`     | [v3][guzzle-3-repo] | [v3][guzzle-3-docs] | No    | >= 5.3.3    |
 | 4.x     | EOL        | `guzzlehttp/guzzle` | `GuzzleHttp` | [v4][guzzle-4-repo] | N/A                 | No    | >= 5.4      |
-| 5.x     | Maintained | `guzzlehttp/guzzle` | `GuzzleHttp` | [v5][guzzle-5-repo] | [v5][guzzle-5-docs] | No    | >= 5.4      |
+| 5.x     | EOL        | `guzzlehttp/guzzle` | `GuzzleHttp` | [v5][guzzle-5-repo] | [v5][guzzle-5-docs] | No    | >= 5.4      |
 | 6.x     | Latest     | `guzzlehttp/guzzle` | `GuzzleHttp` | [v6][guzzle-6-repo] | [v6][guzzle-6-docs] | Yes   | >= 5.5      |
 
 [guzzle-3-repo]: https://github.com/guzzle/guzzle3
diff --git a/vendor/guzzlehttp/guzzle/composer.json b/vendor/guzzlehttp/guzzle/composer.json
index c553257534..bbf0ff20b4 100644
--- a/vendor/guzzlehttp/guzzle/composer.json
+++ b/vendor/guzzlehttp/guzzle/composer.json
@@ -32,14 +32,15 @@
         "psr/log": "^1.1"
     },
     "suggest": {
-        "psr/log": "Required for using the Log middleware"
+        "psr/log": "Required for using the Log middleware",
+        "ext-intl": "Required for Internationalized Domain Name (IDN) support"
     },
     "config": {
         "sort-packages": true
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "6.3-dev"
+            "dev-master": "6.5-dev"
         }
     },
     "autoload": {
diff --git a/vendor/guzzlehttp/guzzle/phpstan.neon.dist b/vendor/guzzlehttp/guzzle/phpstan.neon.dist
deleted file mode 100644
index 4ef4192d33..0000000000
--- a/vendor/guzzlehttp/guzzle/phpstan.neon.dist
+++ /dev/null
@@ -1,9 +0,0 @@
-parameters:
-    level: 1
-    paths:
-      - src
-
-    ignoreErrors:
-        -
-            message: '#Function uri_template not found#'
-            path: %currentWorkingDirectory%/src/functions.php
diff --git a/vendor/guzzlehttp/guzzle/src/Client.php b/vendor/guzzlehttp/guzzle/src/Client.php
index 0f43c71f01..db4062f942 100644
--- a/vendor/guzzlehttp/guzzle/src/Client.php
+++ b/vendor/guzzlehttp/guzzle/src/Client.php
@@ -2,11 +2,12 @@
 namespace GuzzleHttp;
 
 use GuzzleHttp\Cookie\CookieJar;
+use GuzzleHttp\Exception\InvalidArgumentException;
 use GuzzleHttp\Promise;
 use GuzzleHttp\Psr7;
-use Psr\Http\Message\UriInterface;
 use Psr\Http\Message\RequestInterface;
 use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\UriInterface;
 
 /**
  * @method ResponseInterface get(string|UriInterface $uri, array $options = [])
@@ -75,6 +76,12 @@ class Client implements ClientInterface
         $this->configureDefaults($config);
     }
 
+    /**
+     * @param string $method
+     * @param array  $args
+     *
+     * @return Promise\PromiseInterface
+     */
     public function __call($method, $args)
     {
         if (count($args) < 1) {
@@ -89,6 +96,14 @@ class Client implements ClientInterface
             : $this->request($method, $uri, $opts);
     }
 
+    /**
+     * Asynchronously send an HTTP request.
+     *
+     * @param array $options Request options to apply to the given
+     *                       request and to the transfer. See \GuzzleHttp\RequestOptions.
+     *
+     * @return PromiseInterface
+     */
     public function sendAsync(RequestInterface $request, array $options = [])
     {
         // Merge the base URI into the request URI if needed.
@@ -100,12 +115,35 @@ class Client implements ClientInterface
         );
     }
 
+    /**
+     * Send an HTTP request.
+     *
+     * @param array $options Request options to apply to the given
+     *                       request and to the transfer. See \GuzzleHttp\RequestOptions.
+     *
+     * @return ResponseInterface
+     * @throws GuzzleException
+     */
     public function send(RequestInterface $request, array $options = [])
     {
         $options[RequestOptions::SYNCHRONOUS] = true;
         return $this->sendAsync($request, $options)->wait();
     }
 
+    /**
+     * Create and send an asynchronous HTTP request.
+     *
+     * Use an absolute path to override the base path of the client, or a
+     * relative path to append to the base path of the client. The URL can
+     * contain the query string as well. Use an array to provide a URL
+     * template and additional variables to use in the URL template expansion.
+     *
+     * @param string              $method  HTTP method
+     * @param string|UriInterface $uri     URI object or string.
+     * @param array               $options Request options to apply. See \GuzzleHttp\RequestOptions.
+     *
+     * @return PromiseInterface
+     */
     public function requestAsync($method, $uri = '', array $options = [])
     {
         $options = $this->prepareDefaults($options);
@@ -125,12 +163,37 @@ class Client implements ClientInterface
         return $this->transfer($request, $options);
     }
 
+    /**
+     * Create and send an HTTP request.
+     *
+     * Use an absolute path to override the base path of the client, or a
+     * relative path to append to the base path of the client. The URL can
+     * contain the query string as well.
+     *
+     * @param string              $method  HTTP method.
+     * @param string|UriInterface $uri     URI object or string.
+     * @param array               $options Request options to apply. See \GuzzleHttp\RequestOptions.
+     *
+     * @return ResponseInterface
+     * @throws GuzzleException
+     */
     public function request($method, $uri = '', array $options = [])
     {
         $options[RequestOptions::SYNCHRONOUS] = true;
         return $this->requestAsync($method, $uri, $options)->wait();
     }
 
+    /**
+     * Get a client configuration option.
+     *
+     * These options include default request options of the client, a "handler"
+     * (if utilized by the concrete client), and a "base_uri" if utilized by
+     * the concrete client.
+     *
+     * @param string|null $option The config option to retrieve.
+     *
+     * @return mixed
+     */
     public function getConfig($option = null)
     {
         return $option === null
@@ -138,6 +201,11 @@ class Client implements ClientInterface
             : (isset($this->config[$option]) ? $this->config[$option] : null);
     }
 
+    /**
+     * @param  string|null $uri
+     *
+     * @return UriInterface
+     */
     private function buildUri($uri, array $config)
     {
         // for BC we accept null which would otherwise fail in uri_for
@@ -147,6 +215,38 @@ class Client implements ClientInterface
             $uri = Psr7\UriResolver::resolve(Psr7\uri_for($config['base_uri']), $uri);
         }
 
+        if ($uri->getHost() && isset($config['idn_conversion']) && ($config['idn_conversion'] !== false)) {
+            $idnOptions = ($config['idn_conversion'] === true) ? IDNA_DEFAULT : $config['idn_conversion'];
+
+            $asciiHost = idn_to_ascii($uri->getHost(), $idnOptions, INTL_IDNA_VARIANT_UTS46, $info);
+            if ($asciiHost === false) {
+                $errorBitSet = isset($info['errors']) ? $info['errors'] : 0;
+
+                $errorConstants = array_filter(array_keys(get_defined_constants()), function ($name) {
+                    return substr($name, 0, 11) === 'IDNA_ERROR_';
+                });
+
+                $errors = [];
+                foreach ($errorConstants as $errorConstant) {
+                    if ($errorBitSet & constant($errorConstant)) {
+                        $errors[] = $errorConstant;
+                    }
+                }
+
+                $errorMessage = 'IDN conversion failed';
+                if ($errors) {
+                    $errorMessage .= ' (errors: ' . implode(', ', $errors) . ')';
+                }
+
+                throw new InvalidArgumentException($errorMessage);
+            } else {
+                if ($uri->getHost() !== $asciiHost) {
+                    // Replace URI only if the ASCII version is different
+                    $uri = $uri->withHost($asciiHost);
+                }
+            }
+        }
+
         return $uri->getScheme() === '' && $uri->getHost() !== '' ? $uri->withScheme('http') : $uri;
     }
 
@@ -154,6 +254,7 @@ class Client implements ClientInterface
      * Configures the default options for a client.
      *
      * @param array $config
+     * @return void
      */
     private function configureDefaults(array $config)
     {
@@ -165,12 +266,15 @@ class Client implements ClientInterface
             'cookies'         => false
         ];
 
+        // idn_to_ascii() is a part of ext-intl and might be not available
+        $defaults['idn_conversion'] = function_exists('idn_to_ascii');
+
         // Use the standard Linux HTTP_PROXY and HTTPS_PROXY if set.
 
         // We can only trust the HTTP_PROXY environment variable in a CLI
         // process due to the fact that PHP has no reliable mechanism to
         // get environment variables that start with "HTTP_".
-        if (php_sapi_name() == 'cli' && getenv('HTTP_PROXY')) {
+        if (php_sapi_name() === 'cli' && getenv('HTTP_PROXY')) {
             $defaults['proxy']['http'] = getenv('HTTP_PROXY');
         }
 
@@ -225,7 +329,7 @@ class Client implements ClientInterface
         if (array_key_exists('headers', $options)) {
             // Allows default headers to be unset.
             if ($options['headers'] === null) {
-                $defaults['_conditional'] = null;
+                $defaults['_conditional'] = [];
                 unset($options['headers']);
             } elseif (!is_array($options['headers'])) {
                 throw new \InvalidArgumentException('headers must be an array');
@@ -251,8 +355,7 @@ class Client implements ClientInterface
      * The URI of the request is not modified and the request options are used
      * as-is without merging in default options.
      *
-     * @param RequestInterface $request
-     * @param array            $options
+     * @param array $options See \GuzzleHttp\RequestOptions.
      *
      * @return Promise\PromiseInterface
      */
@@ -271,6 +374,7 @@ class Client implements ClientInterface
         }
 
         $request = $this->applyOptions($request, $options);
+        /** @var HandlerStack $handler */
         $handler = $options['handler'];
 
         try {
@@ -411,6 +515,11 @@ class Client implements ClientInterface
         return $request;
     }
 
+    /**
+     * Throw Exception with pre-set message.
+     * @return void
+     * @throws InvalidArgumentException Invalid body.
+     */
     private function invalidBody()
     {
         throw new \InvalidArgumentException('Passing in the "body" request '
diff --git a/vendor/guzzlehttp/guzzle/src/ClientInterface.php b/vendor/guzzlehttp/guzzle/src/ClientInterface.php
index 5b37085149..0829b3607a 100644
--- a/vendor/guzzlehttp/guzzle/src/ClientInterface.php
+++ b/vendor/guzzlehttp/guzzle/src/ClientInterface.php
@@ -1,8 +1,8 @@
 <?php
 namespace GuzzleHttp;
 
-use GuzzleHttp\Promise\PromiseInterface;
 use GuzzleHttp\Exception\GuzzleException;
+use GuzzleHttp\Promise\PromiseInterface;
 use Psr\Http\Message\RequestInterface;
 use Psr\Http\Message\ResponseInterface;
 use Psr\Http\Message\UriInterface;
@@ -12,7 +12,10 @@ use Psr\Http\Message\UriInterface;
  */
 interface ClientInterface
 {
-    const VERSION = '6.4.1';
+    /**
+     * @deprecated Will be removed in Guzzle 7.0.0
+     */
+    const VERSION = '6.5.0';
 
     /**
      * Send an HTTP request.
diff --git a/vendor/guzzlehttp/guzzle/src/Cookie/CookieJar.php b/vendor/guzzlehttp/guzzle/src/Cookie/CookieJar.php
index 2862642613..38f98ad7c0 100644
--- a/vendor/guzzlehttp/guzzle/src/Cookie/CookieJar.php
+++ b/vendor/guzzlehttp/guzzle/src/Cookie/CookieJar.php
@@ -94,8 +94,8 @@ class CookieJar implements CookieJarInterface
      */
     public function getCookieByName($name)
     {
-        // don't allow a null name
-        if ($name === null) {
+        // don't allow a non string name
+        if ($name === null || !is_scalar($name)) {
             return null;
         }
         foreach ($this->cookies as $cookie) {
@@ -103,6 +103,8 @@ class CookieJar implements CookieJarInterface
                 return $cookie;
             }
         }
+
+        return null;
     }
 
     public function toArray()
diff --git a/vendor/guzzlehttp/guzzle/src/Cookie/CookieJarInterface.php b/vendor/guzzlehttp/guzzle/src/Cookie/CookieJarInterface.php
index 2cf298a867..6ee11885e1 100644
--- a/vendor/guzzlehttp/guzzle/src/Cookie/CookieJarInterface.php
+++ b/vendor/guzzlehttp/guzzle/src/Cookie/CookieJarInterface.php
@@ -58,9 +58,9 @@ interface CookieJarInterface extends \Countable, \IteratorAggregate
      * arguments, then the cookie with the specified name, path and domain is
      * removed.
      *
-     * @param string $domain Clears cookies matching a domain
-     * @param string $path   Clears cookies matching a domain and path
-     * @param string $name   Clears cookies matching a domain, path, and name
+     * @param string|null $domain Clears cookies matching a domain
+     * @param string|null $path   Clears cookies matching a domain and path
+     * @param string|null $name   Clears cookies matching a domain, path, and name
      *
      * @return CookieJarInterface
      */
diff --git a/vendor/guzzlehttp/guzzle/src/Exception/RequestException.php b/vendor/guzzlehttp/guzzle/src/Exception/RequestException.php
index f38ca8646f..12dd081eb6 100644
--- a/vendor/guzzlehttp/guzzle/src/Exception/RequestException.php
+++ b/vendor/guzzlehttp/guzzle/src/Exception/RequestException.php
@@ -1,9 +1,9 @@
 <?php
 namespace GuzzleHttp\Exception;
 
+use GuzzleHttp\Promise\PromiseInterface;
 use Psr\Http\Message\RequestInterface;
 use Psr\Http\Message\ResponseInterface;
-use GuzzleHttp\Promise\PromiseInterface;
 use Psr\Http\Message\UriInterface;
 
 /**
@@ -14,7 +14,7 @@ class RequestException extends TransferException
     /** @var RequestInterface */
     private $request;
 
-    /** @var ResponseInterface */
+    /** @var ResponseInterface|null */
     private $response;
 
     /** @var array */
@@ -124,42 +124,17 @@ class RequestException extends TransferException
      */
     public static function getResponseBodySummary(ResponseInterface $response)
     {
-        $body = $response->getBody();
-
-        if (!$body->isSeekable() || !$body->isReadable()) {
-            return null;
-        }
-
-        $size = $body->getSize();
-
-        if ($size === 0) {
-            return null;
-        }
-
-        $summary = $body->read(120);
-        $body->rewind();
-
-        if ($size > 120) {
-            $summary .= ' (truncated...)';
-        }
-
-        // Matches any printable character, including unicode characters:
-        // letters, marks, numbers, punctuation, spacing, and separators.
-        if (preg_match('/[^\pL\pM\pN\pP\pS\pZ\n\r\t]/', $summary)) {
-            return null;
-        }
-
-        return $summary;
+        return \GuzzleHttp\Psr7\get_message_body_summary($response);
     }
 
     /**
-     * Obfuscates URI if there is an username and a password present
+     * Obfuscates URI if there is a username and a password present
      *
      * @param UriInterface $uri
      *
      * @return UriInterface
      */
-    private static function obfuscateUri($uri)
+    private static function obfuscateUri(UriInterface $uri)
     {
         $userInfo = $uri->getUserInfo();
 
diff --git a/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php b/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php
index e349bb4c49..4a28a96ebc 100644
--- a/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php
+++ b/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php
@@ -1,8 +1,8 @@
 <?php
 namespace GuzzleHttp\Handler;
 
-use GuzzleHttp\Exception\RequestException;
 use GuzzleHttp\Exception\ConnectException;
+use GuzzleHttp\Exception\RequestException;
 use GuzzleHttp\Promise\FulfilledPromise;
 use GuzzleHttp\Psr7;
 use GuzzleHttp\Psr7\LazyOpenStream;
@@ -454,11 +454,16 @@ class CurlFactory implements CurlFactoryInterface
         }
 
         if (isset($options['ssl_key'])) {
-            $sslKey = $options['ssl_key'];
-            if (is_array($sslKey)) {
-                $conf[CURLOPT_SSLKEYPASSWD] = $sslKey[1];
-                $sslKey = $sslKey[0];
+            if (is_array($options['ssl_key'])) {
+                if (count($options['ssl_key']) === 2) {
+                    list($sslKey, $conf[CURLOPT_SSLKEYPASSWD]) = $options['ssl_key'];
+                } else {
+                    list($sslKey) = $options['ssl_key'];
+                }
             }
+
+            $sslKey = isset($sslKey) ? $sslKey: $options['ssl_key'];
+
             if (!file_exists($sslKey)) {
                 throw new \InvalidArgumentException(
                     "SSL private key not found: {$sslKey}"
diff --git a/vendor/guzzlehttp/guzzle/src/Handler/CurlMultiHandler.php b/vendor/guzzlehttp/guzzle/src/Handler/CurlMultiHandler.php
index d8297623ce..b73e5c72d4 100644
--- a/vendor/guzzlehttp/guzzle/src/Handler/CurlMultiHandler.php
+++ b/vendor/guzzlehttp/guzzle/src/Handler/CurlMultiHandler.php
@@ -1,9 +1,9 @@
 <?php
 namespace GuzzleHttp\Handler;
 
+use GuzzleHttp\Exception\InvalidArgumentException;
 use GuzzleHttp\Promise as P;
 use GuzzleHttp\Promise\Promise;
-use GuzzleHttp\Psr7;
 use Psr\Http\Message\RequestInterface;
 
 /**
@@ -23,6 +23,7 @@ class CurlMultiHandler
     private $active;
     private $handles = [];
     private $delays = [];
+    private $options = [];
 
     /**
      * This handler accepts the following options:
@@ -30,6 +31,8 @@ class CurlMultiHandler
      * - handle_factory: An optional factory  used to create curl handles
      * - select_timeout: Optional timeout (in seconds) to block before timing
      *   out while selecting curl handles. Defaults to 1 second.
+     * - options: An associative array of CURLMOPT_* options and
+     *   corresponding values for curl_multi_setopt()
      *
      * @param array $options
      */
@@ -45,12 +48,23 @@ class CurlMultiHandler
         } else {
             $this->selectTimeout = 1;
         }
+
+        $this->options = isset($options['options']) ? $options['options'] : [];
     }
 
     public function __get($name)
     {
         if ($name === '_mh') {
-            return $this->_mh = curl_multi_init();
+            $this->_mh = curl_multi_init();
+
+            foreach ($this->options as $option => $value) {
+                // A warning is raised in case of a wrong option.
+                curl_multi_setopt($this->_mh, $option, $value);
+            }
+
+            // Further calls to _mh will return the value directly, without entering the
+            // __get() method at all.
+            return $this->_mh;
         }
 
         throw new \BadMethodCallException();
diff --git a/vendor/guzzlehttp/guzzle/src/Handler/MockHandler.php b/vendor/guzzlehttp/guzzle/src/Handler/MockHandler.php
index d5c449c1da..5b312bc042 100644
--- a/vendor/guzzlehttp/guzzle/src/Handler/MockHandler.php
+++ b/vendor/guzzlehttp/guzzle/src/Handler/MockHandler.php
@@ -66,7 +66,7 @@ class MockHandler implements \Countable
             throw new \OutOfBoundsException('Mock queue is empty');
         }
 
-        if (isset($options['delay'])) {
+        if (isset($options['delay']) && is_numeric($options['delay'])) {
             usleep($options['delay'] * 1000);
         }
 
@@ -175,6 +175,11 @@ class MockHandler implements \Countable
         return count($this->queue);
     }
 
+    public function reset()
+    {
+        $this->queue = [];
+    }
+
     private function invokeStats(
         RequestInterface $request,
         array $options,
diff --git a/vendor/guzzlehttp/guzzle/src/Handler/StreamHandler.php b/vendor/guzzlehttp/guzzle/src/Handler/StreamHandler.php
index 0dedd7da44..a8eba3786b 100644
--- a/vendor/guzzlehttp/guzzle/src/Handler/StreamHandler.php
+++ b/vendor/guzzlehttp/guzzle/src/Handler/StreamHandler.php
@@ -1,8 +1,8 @@
 <?php
 namespace GuzzleHttp\Handler;
 
-use GuzzleHttp\Exception\RequestException;
 use GuzzleHttp\Exception\ConnectException;
+use GuzzleHttp\Exception\RequestException;
 use GuzzleHttp\Promise\FulfilledPromise;
 use GuzzleHttp\Promise\PromiseInterface;
 use GuzzleHttp\Psr7;
diff --git a/vendor/guzzlehttp/guzzle/src/HandlerStack.php b/vendor/guzzlehttp/guzzle/src/HandlerStack.php
index f0016861e5..6a49cc0690 100644
--- a/vendor/guzzlehttp/guzzle/src/HandlerStack.php
+++ b/vendor/guzzlehttp/guzzle/src/HandlerStack.php
@@ -1,7 +1,9 @@
 <?php
 namespace GuzzleHttp;
 
+use GuzzleHttp\Promise\PromiseInterface;
 use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
 
 /**
  * Creates a composed Guzzle handler function by stacking middlewares on top of
@@ -9,7 +11,7 @@ use Psr\Http\Message\RequestInterface;
  */
 class HandlerStack
 {
-    /** @var callable */
+    /** @var callable|null */
     private $handler;
 
     /** @var array */
@@ -59,6 +61,8 @@ class HandlerStack
      *
      * @param RequestInterface $request
      * @param array            $options
+     *
+     * @return ResponseInterface|PromiseInterface
      */
     public function __invoke(RequestInterface $request, array $options)
     {
diff --git a/vendor/guzzlehttp/guzzle/src/MessageFormatter.php b/vendor/guzzlehttp/guzzle/src/MessageFormatter.php
index 663ac73916..dc36bb524d 100644
--- a/vendor/guzzlehttp/guzzle/src/MessageFormatter.php
+++ b/vendor/guzzlehttp/guzzle/src/MessageFormatter.php
@@ -168,6 +168,11 @@ class MessageFormatter
         );
     }
 
+    /**
+     * Get headers from message as string
+     *
+     * @return string
+     */
     private function headers(MessageInterface $message)
     {
         $result = '';
diff --git a/vendor/guzzlehttp/guzzle/src/Pool.php b/vendor/guzzlehttp/guzzle/src/Pool.php
index 05c854aeb3..ec7df6c0e0 100644
--- a/vendor/guzzlehttp/guzzle/src/Pool.php
+++ b/vendor/guzzlehttp/guzzle/src/Pool.php
@@ -1,9 +1,9 @@
 <?php
 namespace GuzzleHttp;
 
+use GuzzleHttp\Promise\EachPromise;
 use GuzzleHttp\Promise\PromisorInterface;
 use Psr\Http\Message\RequestInterface;
-use GuzzleHttp\Promise\EachPromise;
 
 /**
  * Sends an iterator of requests concurrently using a capped pool size.
@@ -69,6 +69,10 @@ class Pool implements PromisorInterface
         $this->each = new EachPromise($requests(), $config);
     }
 
+    /**
+     * Get promise
+     * @return GuzzleHttp\Promise\Promise
+     */
     public function promise()
     {
         return $this->each->promise();
@@ -106,6 +110,11 @@ class Pool implements PromisorInterface
         return $res;
     }
 
+    /**
+     * Execute callback(s)
+     *
+     * @return void
+     */
     private static function cmpCallback(array &$options, $name, array &$results)
     {
         if (!isset($options[$name])) {
diff --git a/vendor/guzzlehttp/guzzle/src/PrepareBodyMiddleware.php b/vendor/guzzlehttp/guzzle/src/PrepareBodyMiddleware.php
index 2eb95f9b2d..568a1e906c 100644
--- a/vendor/guzzlehttp/guzzle/src/PrepareBodyMiddleware.php
+++ b/vendor/guzzlehttp/guzzle/src/PrepareBodyMiddleware.php
@@ -66,6 +66,11 @@ class PrepareBodyMiddleware
         return $fn(Psr7\modify_request($request, $modify), $options);
     }
 
+    /**
+     * Add expect header
+     *
+     * @return void
+     */
     private function addExpectHeader(
         RequestInterface $request,
         array $options,
diff --git a/vendor/guzzlehttp/guzzle/src/RedirectMiddleware.php b/vendor/guzzlehttp/guzzle/src/RedirectMiddleware.php
index bff4e4e8ae..5a0edd5728 100644
--- a/vendor/guzzlehttp/guzzle/src/RedirectMiddleware.php
+++ b/vendor/guzzlehttp/guzzle/src/RedirectMiddleware.php
@@ -76,7 +76,7 @@ class RedirectMiddleware
     /**
      * @param RequestInterface  $request
      * @param array             $options
-     * @param ResponseInterface|PromiseInterface $response
+     * @param ResponseInterface $response
      *
      * @return ResponseInterface|PromiseInterface
      */
@@ -118,6 +118,11 @@ class RedirectMiddleware
         return $promise;
     }
 
+    /**
+     * Enable tracking on promise.
+     *
+     * @return PromiseInterface
+     */
     private function withTracking(PromiseInterface $promise, $uri, $statusCode)
     {
         return $promise->then(
@@ -135,6 +140,13 @@ class RedirectMiddleware
         );
     }
 
+    /**
+     * Check for too many redirects
+     *
+     * @return void
+     *
+     * @throws TooManyRedirectsException Too many redirects.
+     */
     private function guardMax(RequestInterface $request, array &$options)
     {
         $current = isset($options['__redirect_count'])
@@ -172,7 +184,7 @@ class RedirectMiddleware
         // would do.
         $statusCode = $response->getStatusCode();
         if ($statusCode == 303 ||
-            ($statusCode <= 302 && $request->getBody() && !$options['allow_redirects']['strict'])
+            ($statusCode <= 302 && !$options['allow_redirects']['strict'])
         ) {
             $modify['method'] = 'GET';
             $modify['body'] = '';
diff --git a/vendor/guzzlehttp/guzzle/src/RequestOptions.php b/vendor/guzzlehttp/guzzle/src/RequestOptions.php
index 5c0fd19d31..355f658f03 100644
--- a/vendor/guzzlehttp/guzzle/src/RequestOptions.php
+++ b/vendor/guzzlehttp/guzzle/src/RequestOptions.php
@@ -133,6 +133,14 @@ final class RequestOptions
     const HTTP_ERRORS = 'http_errors';
 
     /**
+     * idn: (bool|int, default=true) A combination of IDNA_* constants for
+     * idn_to_ascii() PHP's function (see "options" parameter). Set to false to
+     * disable IDN support completely, or to true to use the default
+     * configuration (IDNA_DEFAULT constant).
+     */
+    const IDN_CONVERSION = 'idn_conversion';
+
+    /**
      * json: (mixed) Adds JSON data to a request. The provided value is JSON
      * encoded and a Content-Type header of application/json will be added to
      * the request if no Content-Type header is already present.
diff --git a/vendor/guzzlehttp/guzzle/src/RetryMiddleware.php b/vendor/guzzlehttp/guzzle/src/RetryMiddleware.php
index 7d40ecaf85..5acc8c5c39 100644
--- a/vendor/guzzlehttp/guzzle/src/RetryMiddleware.php
+++ b/vendor/guzzlehttp/guzzle/src/RetryMiddleware.php
@@ -47,11 +47,11 @@ class RetryMiddleware
      *
      * @param int $retries
      *
-     * @return int
+     * @return int milliseconds.
      */
     public static function exponentialDelay($retries)
     {
-        return (int) pow(2, $retries - 1);
+        return (int) pow(2, $retries - 1) * 1000;
     }
 
     /**
@@ -74,6 +74,11 @@ class RetryMiddleware
             );
     }
 
+    /**
+     * Execute fulfilled closure
+     *
+     * @return mixed
+     */
     private function onFulfilled(RequestInterface $req, array $options)
     {
         return function ($value) use ($req, $options) {
@@ -90,6 +95,11 @@ class RetryMiddleware
         };
     }
 
+    /**
+     * Execute rejected closure
+     *
+     * @return callable
+     */
     private function onRejected(RequestInterface $req, array $options)
     {
         return function ($reason) use ($req, $options) {
@@ -106,6 +116,9 @@ class RetryMiddleware
         };
     }
 
+    /**
+     * @return self
+     */
     private function doRetry(RequestInterface $request, array $options, ResponseInterface $response = null)
     {
         $options['delay'] = call_user_func($this->delay, ++$options['retries'], $response);
diff --git a/vendor/guzzlehttp/guzzle/src/TransferStats.php b/vendor/guzzlehttp/guzzle/src/TransferStats.php
index 23a22a336d..87fb3c0016 100644
--- a/vendor/guzzlehttp/guzzle/src/TransferStats.php
+++ b/vendor/guzzlehttp/guzzle/src/TransferStats.php
@@ -18,11 +18,11 @@ final class TransferStats
     private $handlerErrorData;
 
     /**
-     * @param RequestInterface  $request          Request that was sent.
-     * @param ResponseInterface $response         Response received (if any)
-     * @param float|null        $transferTime     Total handler transfer time.
-     * @param mixed             $handlerErrorData Handler error data.
-     * @param array             $handlerStats     Handler specific stats.
+     * @param RequestInterface       $request          Request that was sent.
+     * @param ResponseInterface|null $response         Response received (if any)
+     * @param float|null             $transferTime     Total handler transfer time.
+     * @param mixed                  $handlerErrorData Handler error data.
+     * @param array                  $handlerStats     Handler specific stats.
      */
     public function __construct(
         RequestInterface $request,
@@ -93,7 +93,7 @@ final class TransferStats
     /**
      * Get the estimated time the request was being transferred by the handler.
      *
-     * @return float Time in seconds.
+     * @return float|null Time in seconds.
      */
     public function getTransferTime()
     {
diff --git a/vendor/guzzlehttp/guzzle/src/functions.php b/vendor/guzzlehttp/guzzle/src/functions.php
index 51d736d88d..aff69d557a 100644
--- a/vendor/guzzlehttp/guzzle/src/functions.php
+++ b/vendor/guzzlehttp/guzzle/src/functions.php
@@ -56,7 +56,7 @@ function describe_type($input)
 /**
  * Parses an array of header lines into an associative array of headers.
  *
- * @param array $lines Header lines array of strings in the following
+ * @param iterable $lines Header lines array of strings in the following
  *                     format: "Name: Value"
  * @return array
  */