initial

8 files changed, 1134 insertions, 0 deletions

diff --git a/vendor/aws/aws-sdk-php/src/ClientSideMonitoring/AbstractMonitoringMiddleware.php b/vendor/aws/aws-sdk-php/src/ClientSideMonitoring/AbstractMonitoringMiddleware.php
new file mode 100644
index 0000000..130de6b
--- /dev/null
+++ b/vendor/aws/aws-sdk-php/src/ClientSideMonitoring/AbstractMonitoringMiddleware.php
@@ -0,0 +1,289 @@
+<?php
+
+namespace Aws\ClientSideMonitoring;
+
+use Aws\CommandInterface;
+use Aws\Exception\AwsException;
+use Aws\MonitoringEventsInterface;
+use Aws\ResponseContainerInterface;
+use Aws\ResultInterface;
+use GuzzleHttp\Promise;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+
+/**
+ * @internal
+ */
+abstract class AbstractMonitoringMiddleware
+    implements MonitoringMiddlewareInterface
+{
+    private static $socket;
+
+    private $nextHandler;
+    private $options;
+    protected $credentialProvider;
+    protected $region;
+    protected $service;
+
+    protected static function getAwsExceptionHeader(AwsException $e, $headerName)
+    {
+        $response = $e->getResponse();
+        if ($response !== null) {
+            $header = $response->getHeader($headerName);
+            if (!empty($header[0])) {
+                return $header[0];
+            }
+        }
+        return null;
+    }
+
+    protected static function getResultHeader(ResultInterface $result, $headerName)
+    {
+        if (isset($result['@metadata']['headers'][$headerName])) {
+            return $result['@metadata']['headers'][$headerName];
+        }
+        return null;
+    }
+
+    protected static function getExceptionHeader(\Exception $e, $headerName)
+    {
+        if ($e instanceof ResponseContainerInterface) {
+            $response = $e->getResponse();
+            if ($response instanceof ResponseInterface) {
+                $header = $response->getHeader($headerName);
+                if (!empty($header[0])) {
+                    return $header[0];
+                }
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Constructor stores the passed in handler and options.
+     *
+     * @param callable $handler
+     * @param callable $credentialProvider
+     * @param $options
+     * @param $region
+     * @param $service
+     */
+    public function __construct(
+        callable $handler,
+        callable $credentialProvider,
+        $options,
+        $region,
+        $service
+    ) {
+        $this->nextHandler = $handler;
+        $this->credentialProvider = $credentialProvider;
+        $this->options = $options;
+        $this->region = $region;
+        $this->service = $service;
+    }
+
+    /**
+     * Standard invoke pattern for middleware execution to be implemented by
+     * child classes.
+     *
+     * @param  CommandInterface $cmd
+     * @param  RequestInterface $request
+     * @return Promise\PromiseInterface
+     */
+    public function __invoke(CommandInterface $cmd, RequestInterface $request)
+    {
+        $handler = $this->nextHandler;
+        $eventData = null;
+        $enabled = $this->isEnabled();
+
+        if ($enabled) {
+            $cmd['@http']['collect_stats'] = true;
+            $eventData = $this->populateRequestEventData(
+                $cmd,
+                $request,
+                $this->getNewEvent($cmd, $request)
+            );
+        }
+
+        $g = function ($value) use ($eventData, $enabled) {
+            if ($enabled) {
+                $eventData = $this->populateResultEventData(
+                    $value,
+                    $eventData
+                );
+                $this->sendEventData($eventData);
+
+                if ($value instanceof MonitoringEventsInterface) {
+                    $value->appendMonitoringEvent($eventData);
+                }
+            }
+            if ($value instanceof \Exception || $value instanceof \Throwable) {
+                return Promise\Create::rejectionFor($value);
+            }
+            return $value;
+        };
+
+        return Promise\Create::promiseFor($handler($cmd, $request))->then($g, $g);
+    }
+
+    private function getClientId()
+    {
+        return $this->unwrappedOptions()->getClientId();
+    }
+
+    private function getNewEvent(
+        CommandInterface $cmd,
+        RequestInterface $request
+    ) {
+        $event = [
+            'Api' => $cmd->getName(),
+            'ClientId' => $this->getClientId(),
+            'Region' => $this->getRegion(),
+            'Service' => $this->getService(),
+            'Timestamp' => (int) floor(microtime(true) * 1000),
+            'UserAgent' => substr(
+                $request->getHeaderLine('User-Agent') . ' ' . \Aws\default_user_agent(),
+                0,
+                256
+            ),
+            'Version' => 1
+        ];
+        return $event;
+    }
+
+    private function getHost()
+    {
+        return $this->unwrappedOptions()->getHost();
+    }
+
+    private function getPort()
+    {
+        return $this->unwrappedOptions()->getPort();
+    }
+
+    private function getRegion()
+    {
+        return $this->region;
+    }
+
+    private function getService()
+    {
+        return $this->service;
+    }
+
+    /**
+     * Returns enabled flag from options, unwrapping options if necessary.
+     *
+     * @return bool
+     */
+    private function isEnabled()
+    {
+        return $this->unwrappedOptions()->isEnabled();
+    }
+
+    /**
+     * Returns $eventData array with information from the request and command.
+     *
+     * @param CommandInterface $cmd
+     * @param RequestInterface $request
+     * @param array $event
+     * @return array
+     */
+    protected function populateRequestEventData(
+        CommandInterface $cmd,
+        RequestInterface $request,
+        array $event
+    ) {
+        $dataFormat = static::getRequestData($request);
+        foreach ($dataFormat as $eventKey => $value) {
+            if ($value !== null) {
+                $event[$eventKey] = $value;
+            }
+        }
+        return $event;
+    }
+
+    /**
+     * Returns $eventData array with information from the response, including
+     * the calculation for attempt latency.
+     *
+     * @param ResultInterface|\Exception $result
+     * @param array $event
+     * @return array
+     */
+    protected function populateResultEventData(
+        $result,
+        array $event
+    ) {
+        $dataFormat = static::getResponseData($result);
+        foreach ($dataFormat as $eventKey => $value) {
+            if ($value !== null) {
+                $event[$eventKey] = $value;
+            }
+        }
+        return $event;
+    }
+
+    /**
+     * Creates a UDP socket resource and stores it with the class, or retrieves
+     * it if already instantiated and connected. Handles error-checking and
+     * re-connecting if necessary. If $forceNewConnection is set to true, a new
+     * socket will be created.
+     *
+     * @param bool $forceNewConnection
+     * @return Resource
+     */
+    private function prepareSocket($forceNewConnection = false)
+    {
+        if (!is_resource(self::$socket)
+            || $forceNewConnection
+            || socket_last_error(self::$socket)
+        ) {
+            self::$socket = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);
+            socket_clear_error(self::$socket);
+            socket_connect(self::$socket, $this->getHost(), $this->getPort());
+        }
+
+        return self::$socket;
+    }
+
+    /**
+     * Sends formatted monitoring event data via the UDP socket connection to
+     * the CSM agent endpoint.
+     *
+     * @param array $eventData
+     * @return int
+     */
+    private function sendEventData(array $eventData)
+    {
+        $socket = $this->prepareSocket();
+        $datagram = json_encode($eventData);
+        $result = socket_write($socket, $datagram, strlen($datagram));
+        if ($result === false) {
+            $this->prepareSocket(true);
+        }
+        return $result;
+    }
+
+    /**
+     * Unwraps options, if needed, and returns them.
+     *
+     * @return ConfigurationInterface
+     */
+    private function unwrappedOptions()
+    {
+        if (!($this->options instanceof ConfigurationInterface)) {
+            try {
+                $this->options = ConfigurationProvider::unwrap($this->options);
+            } catch (\Exception $e) {
+                // Errors unwrapping CSM config defaults to disabling it
+                $this->options = new Configuration(
+                    false,
+                    ConfigurationProvider::DEFAULT_HOST,
+                    ConfigurationProvider::DEFAULT_PORT
+                );
+            }
+        }
+        return $this->options;
+    }
+}
\ No newline at end of file
diff --git a/vendor/aws/aws-sdk-php/src/ClientSideMonitoring/ApiCallAttemptMonitoringMiddleware.php b/vendor/aws/aws-sdk-php/src/ClientSideMonitoring/ApiCallAttemptMonitoringMiddleware.php
new file mode 100644
index 0000000..91810bb
--- /dev/null
+++ b/vendor/aws/aws-sdk-php/src/ClientSideMonitoring/ApiCallAttemptMonitoringMiddleware.php
@@ -0,0 +1,262 @@
+<?php
+
+namespace Aws\ClientSideMonitoring;
+
+use Aws\CommandInterface;
+use Aws\Credentials\CredentialsInterface;
+use Aws\Exception\AwsException;
+use Aws\ResponseContainerInterface;
+use Aws\ResultInterface;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+
+/**
+ * @internal
+ */
+class ApiCallAttemptMonitoringMiddleware extends AbstractMonitoringMiddleware
+{
+
+    /**
+     * Standard middleware wrapper function with CSM options passed in.
+     *
+     * @param callable $credentialProvider
+     * @param mixed  $options
+     * @param string $region
+     * @param string $service
+     * @return callable
+     */
+    public static function wrap(
+        callable $credentialProvider,
+        $options,
+        $region,
+        $service
+    ) {
+        return function (callable $handler) use (
+            $credentialProvider,
+            $options,
+            $region,
+            $service
+        ) {
+            return new static(
+                $handler,
+                $credentialProvider,
+                $options,
+                $region,
+                $service
+            );
+        };
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public static function getRequestData(RequestInterface $request)
+    {
+        return [
+            'Fqdn' => $request->getUri()->getHost(),
+        ];
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public static function getResponseData($klass)
+    {
+        if ($klass instanceof ResultInterface) {
+            return [
+                'AttemptLatency' => self::getResultAttemptLatency($klass),
+                'DestinationIp' => self::getResultDestinationIp($klass),
+                'DnsLatency' => self::getResultDnsLatency($klass),
+                'HttpStatusCode' => self::getResultHttpStatusCode($klass),
+                'XAmzId2' => self::getResultHeader($klass, 'x-amz-id-2'),
+                'XAmzRequestId' => self::getResultHeader($klass, 'x-amz-request-id'),
+                'XAmznRequestId' => self::getResultHeader($klass, 'x-amzn-RequestId'),
+            ];
+        }
+        if ($klass instanceof AwsException) {
+            return [
+                'AttemptLatency' => self::getAwsExceptionAttemptLatency($klass),
+                'AwsException' => substr(
+                    self::getAwsExceptionErrorCode($klass),
+                    0,
+                    128
+                ),
+                'AwsExceptionMessage' => substr(
+                    self::getAwsExceptionMessage($klass),
+                    0,
+                    512
+                ),
+                'DestinationIp' => self::getAwsExceptionDestinationIp($klass),
+                'DnsLatency' => self::getAwsExceptionDnsLatency($klass),
+                'HttpStatusCode' => self::getAwsExceptionHttpStatusCode($klass),
+                'XAmzId2' => self::getAwsExceptionHeader($klass, 'x-amz-id-2'),
+                'XAmzRequestId' => self::getAwsExceptionHeader(
+                    $klass,
+                    'x-amz-request-id'
+                ),
+                'XAmznRequestId' => self::getAwsExceptionHeader(
+                    $klass,
+                    'x-amzn-RequestId'
+                ),
+            ];
+        }
+        if ($klass instanceof \Exception) {
+            return [
+                'HttpStatusCode' => self::getExceptionHttpStatusCode($klass),
+                'SdkException' => substr(
+                    self::getExceptionCode($klass),
+                    0,
+                    128
+                ),
+                'SdkExceptionMessage' => substr(
+                    self::getExceptionMessage($klass),
+                    0,
+                    512
+                ),
+                'XAmzId2' => self::getExceptionHeader($klass, 'x-amz-id-2'),
+                'XAmzRequestId' => self::getExceptionHeader($klass, 'x-amz-request-id'),
+                'XAmznRequestId' => self::getExceptionHeader($klass, 'x-amzn-RequestId'),
+            ];
+        }
+
+        throw new \InvalidArgumentException('Parameter must be an instance of ResultInterface, AwsException or Exception.');
+    }
+
+    private static function getResultAttemptLatency(ResultInterface $result)
+    {
+        if (isset($result['@metadata']['transferStats']['http'])) {
+            $attempt = end($result['@metadata']['transferStats']['http']);
+            if (isset($attempt['total_time'])) {
+                return (int) floor($attempt['total_time'] * 1000);
+            }
+        }
+        return null;
+    }
+
+    private static function getResultDestinationIp(ResultInterface $result)
+    {
+        if (isset($result['@metadata']['transferStats']['http'])) {
+            $attempt = end($result['@metadata']['transferStats']['http']);
+            if (isset($attempt['primary_ip'])) {
+                return $attempt['primary_ip'];
+            }
+        }
+        return null;
+    }
+
+    private static function getResultDnsLatency(ResultInterface $result)
+    {
+        if (isset($result['@metadata']['transferStats']['http'])) {
+            $attempt = end($result['@metadata']['transferStats']['http']);
+            if (isset($attempt['namelookup_time'])) {
+                return (int) floor($attempt['namelookup_time'] * 1000);
+            }
+        }
+        return null;
+    }
+
+    private static function getResultHttpStatusCode(ResultInterface $result)
+    {
+        return $result['@metadata']['statusCode'];
+    }
+
+    private static function getAwsExceptionAttemptLatency(AwsException $e) {
+        $attempt = $e->getTransferInfo();
+        if (isset($attempt['total_time'])) {
+            return (int) floor($attempt['total_time'] * 1000);
+        }
+        return null;
+    }
+
+    private static function getAwsExceptionErrorCode(AwsException $e) {
+        return $e->getAwsErrorCode();
+    }
+
+    private static function getAwsExceptionMessage(AwsException $e) {
+        return $e->getAwsErrorMessage();
+    }
+
+    private static function getAwsExceptionDestinationIp(AwsException $e) {
+        $attempt = $e->getTransferInfo();
+        if (isset($attempt['primary_ip'])) {
+            return $attempt['primary_ip'];
+        }
+        return null;
+    }
+
+    private static function getAwsExceptionDnsLatency(AwsException $e) {
+        $attempt = $e->getTransferInfo();
+        if (isset($attempt['namelookup_time'])) {
+            return (int) floor($attempt['namelookup_time'] * 1000);
+        }
+        return null;
+    }
+
+    private static function getAwsExceptionHttpStatusCode(AwsException $e) {
+        $response = $e->getResponse();
+        if ($response !== null) {
+            return $response->getStatusCode();
+        }
+        return null;
+    }
+
+    private static function getExceptionHttpStatusCode(\Exception $e) {
+        if ($e instanceof ResponseContainerInterface) {
+            $response = $e->getResponse();
+            if ($response instanceof ResponseInterface) {
+                return $response->getStatusCode();
+            }
+        }
+        return null;
+    }
+
+    private static function getExceptionCode(\Exception $e) {
+        if (!($e instanceof AwsException)) {
+            return get_class($e);
+        }
+        return null;
+    }
+
+    private static function getExceptionMessage(\Exception $e) {
+        if (!($e instanceof AwsException)) {
+            return $e->getMessage();
+        }
+        return null;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function populateRequestEventData(
+        CommandInterface $cmd,
+        RequestInterface $request,
+        array $event
+    ) {
+        $event = parent::populateRequestEventData($cmd, $request, $event);
+        $event['Type'] = 'ApiCallAttempt';
+        return $event;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function populateResultEventData(
+        $result,
+        array $event
+    ) {
+        $event = parent::populateResultEventData($result, $event);
+
+        $provider = $this->credentialProvider;
+        /** @var CredentialsInterface $credentials */
+        $credentials = $provider()->wait();
+        $event['AccessKey'] = $credentials->getAccessKeyId();
+        $sessionToken = $credentials->getSecurityToken();
+        if ($sessionToken !== null) {
+            $event['SessionToken'] = $sessionToken;
+        }
+        if (empty($event['AttemptLatency'])) {
+            $event['AttemptLatency'] = (int) (floor(microtime(true) * 1000) - $event['Timestamp']);
+        }
+        return $event;
+    }
+}
diff --git a/vendor/aws/aws-sdk-php/src/ClientSideMonitoring/ApiCallMonitoringMiddleware.php b/vendor/aws/aws-sdk-php/src/ClientSideMonitoring/ApiCallMonitoringMiddleware.php
new file mode 100644
index 0000000..0a5abda
--- /dev/null
+++ b/vendor/aws/aws-sdk-php/src/ClientSideMonitoring/ApiCallMonitoringMiddleware.php
@@ -0,0 +1,176 @@
+<?php
+
+namespace Aws\ClientSideMonitoring;
+
+use Aws\CommandInterface;
+use Aws\Exception\AwsException;
+use Aws\MonitoringEventsInterface;
+use Aws\ResultInterface;
+use Psr\Http\Message\RequestInterface;
+
+/**
+ * @internal
+ */
+class ApiCallMonitoringMiddleware extends AbstractMonitoringMiddleware
+{
+
+    /**
+     * Api Call Attempt event keys for each Api Call event key
+     *
+     * @var array
+     */
+    private static $eventKeys = [
+        'FinalAwsException' => 'AwsException',
+        'FinalAwsExceptionMessage' => 'AwsExceptionMessage',
+        'FinalSdkException' => 'SdkException',
+        'FinalSdkExceptionMessage' => 'SdkExceptionMessage',
+        'FinalHttpStatusCode' => 'HttpStatusCode',
+    ];
+
+    /**
+     * Standard middleware wrapper function with CSM options passed in.
+     *
+     * @param callable $credentialProvider
+     * @param mixed  $options
+     * @param string $region
+     * @param string $service
+     * @return callable
+     */
+    public static function wrap(
+        callable $credentialProvider,
+        $options,
+        $region,
+        $service
+    ) {
+        return function (callable $handler) use (
+            $credentialProvider,
+            $options,
+            $region,
+            $service
+        ) {
+            return new static(
+                $handler,
+                $credentialProvider,
+                $options,
+                $region,
+                $service
+            );
+        };
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public static function getRequestData(RequestInterface $request)
+    {
+        return [];
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public static function getResponseData($klass)
+    {
+        if ($klass instanceof ResultInterface) {
+            $data = [
+                'AttemptCount' => self::getResultAttemptCount($klass),
+                'MaxRetriesExceeded' => 0,
+            ];
+        } elseif ($klass instanceof \Exception) {
+            $data = [
+                'AttemptCount' => self::getExceptionAttemptCount($klass),
+                'MaxRetriesExceeded' => self::getMaxRetriesExceeded($klass),
+            ];
+        } else {
+            throw new \InvalidArgumentException('Parameter must be an instance of ResultInterface or Exception.');
+        }
+
+        return $data + self::getFinalAttemptData($klass);
+    }
+
+    private static function getResultAttemptCount(ResultInterface $result) {
+        if (isset($result['@metadata']['transferStats']['http'])) {
+            return count($result['@metadata']['transferStats']['http']);
+        }
+        return 1;
+    }
+
+    private static function getExceptionAttemptCount(\Exception $e) {
+        $attemptCount = 0;
+        if ($e instanceof MonitoringEventsInterface) {
+            foreach ($e->getMonitoringEvents() as $event) {
+                if (isset($event['Type']) &&
+                    $event['Type'] === 'ApiCallAttempt') {
+                    $attemptCount++;
+                }
+            }
+
+        }
+        return $attemptCount;
+    }
+
+    private static function getFinalAttemptData($klass)
+    {
+        $data = [];
+        if ($klass instanceof MonitoringEventsInterface) {
+            $finalAttempt = self::getFinalAttempt($klass->getMonitoringEvents());
+
+            if (!empty($finalAttempt)) {
+                foreach (self::$eventKeys as $callKey => $attemptKey) {
+                    if (isset($finalAttempt[$attemptKey])) {
+                        $data[$callKey] = $finalAttempt[$attemptKey];
+                    }
+                }
+            }
+        }
+
+        return $data;
+    }
+
+    private static function getFinalAttempt(array $events)
+    {
+        for (end($events); key($events) !== null; prev($events)) {
+            $current = current($events);
+            if (isset($current['Type'])
+                && $current['Type'] === 'ApiCallAttempt'
+            ) {
+                return $current;
+            }
+        }
+
+        return null;
+    }
+
+    private static function getMaxRetriesExceeded($klass)
+    {
+        if ($klass instanceof AwsException && $klass->isMaxRetriesExceeded()) {
+            return 1;
+        }
+        return 0;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function populateRequestEventData(
+        CommandInterface $cmd,
+        RequestInterface $request,
+        array $event
+    ) {
+        $event = parent::populateRequestEventData($cmd, $request, $event);
+        $event['Type'] = 'ApiCall';
+        return $event;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function populateResultEventData(
+        $result,
+        array $event
+    ) {
+        $event = parent::populateResultEventData($result, $event);
+        $event['Latency'] = (int) (floor(microtime(true) * 1000) - $event['Timestamp']);
+        return $event;
+    }
+}
diff --git a/vendor/aws/aws-sdk-php/src/ClientSideMonitoring/Configuration.php b/vendor/aws/aws-sdk-php/src/ClientSideMonitoring/Configuration.php
new file mode 100644
index 0000000..b875274
--- /dev/null
+++ b/vendor/aws/aws-sdk-php/src/ClientSideMonitoring/Configuration.php
@@ -0,0 +1,77 @@
+<?php
+namespace Aws\ClientSideMonitoring;
+
+class Configuration implements ConfigurationInterface
+{
+    private $clientId;
+    private $enabled;
+    private $host;
+    private $port;
+
+    /**
+     * Constructs a new Configuration object with the specified CSM options set.
+     *
+     * @param mixed $enabled
+     * @param string $host
+     * @param string|int $port
+     * @param string $clientId
+     */
+    public function __construct($enabled, $host, $port, $clientId = '')
+    {
+        $this->host = $host;
+        $this->port = filter_var($port, FILTER_VALIDATE_INT);
+        if ($this->port === false) {
+            throw new \InvalidArgumentException(
+                "CSM 'port' value must be an integer!");
+        }
+
+        // Unparsable $enabled flag errors on the side of disabling CSM
+        $this->enabled = filter_var($enabled, FILTER_VALIDATE_BOOLEAN);
+        $this->clientId = trim($clientId);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function isEnabled()
+    {
+        return $this->enabled;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getClientId()
+    {
+        return $this->clientId;
+    }
+
+    /**
+     * /{@inheritdoc}
+     */
+    public function getHost()
+    {
+        return $this->host;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getPort()
+    {
+        return $this->port;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function toArray()
+    {
+        return [
+            'client_id' => $this->getClientId(),
+            'enabled' => $this->isEnabled(),
+            'host' => $this->getHost(),
+            'port' => $this->getPort()
+        ];
+    }
+}
\ No newline at end of file
diff --git a/vendor/aws/aws-sdk-php/src/ClientSideMonitoring/ConfigurationInterface.php b/vendor/aws/aws-sdk-php/src/ClientSideMonitoring/ConfigurationInterface.php
new file mode 100644
index 0000000..9a54827
--- /dev/null
+++ b/vendor/aws/aws-sdk-php/src/ClientSideMonitoring/ConfigurationInterface.php
@@ -0,0 +1,44 @@
+<?php
+namespace Aws\ClientSideMonitoring;
+
+/**
+ * Provides access to client-side monitoring configuration options:
+ * 'client_id', 'enabled', 'host', 'port'
+ */
+interface ConfigurationInterface
+{
+    /**
+     * Checks whether or not client-side monitoring is enabled.
+     *
+     * @return bool
+     */
+    public function isEnabled();
+
+    /**
+     * Returns the Client ID, if available.
+     *
+     * @return string|null
+     */
+    public function getClientId();
+
+    /**
+     * Returns the configured host.
+     *
+     * @return string|null
+     */
+    public function getHost();
+
+    /**
+     * Returns the configured port.
+     *
+     * @return int|null
+     */
+    public function getPort();
+
+    /**
+     * Returns the configuration as an associative array.
+     *
+     * @return array
+     */
+    public function toArray();
+}
diff --git a/vendor/aws/aws-sdk-php/src/ClientSideMonitoring/ConfigurationProvider.php b/vendor/aws/aws-sdk-php/src/ClientSideMonitoring/ConfigurationProvider.php
new file mode 100644
index 0000000..b83de70
--- /dev/null
+++ b/vendor/aws/aws-sdk-php/src/ClientSideMonitoring/ConfigurationProvider.php
@@ -0,0 +1,236 @@
+<?php
+namespace Aws\ClientSideMonitoring;
+
+use Aws\AbstractConfigurationProvider;
+use Aws\CacheInterface;
+use Aws\ClientSideMonitoring\Exception\ConfigurationException;
+use Aws\ConfigurationProviderInterface;
+use GuzzleHttp\Promise;
+use GuzzleHttp\Promise\PromiseInterface;
+
+/**
+ * A configuration provider is a function that accepts no arguments and returns
+ * a promise that is fulfilled with a {@see \Aws\ClientSideMonitoring\ConfigurationInterface}
+ * or rejected with an {@see \Aws\ClientSideMonitoring\Exception\ConfigurationException}.
+ *
+ * <code>
+ * use Aws\ClientSideMonitoring\ConfigurationProvider;
+ * $provider = ConfigurationProvider::defaultProvider();
+ * // Returns a ConfigurationInterface or throws.
+ * $config = $provider()->wait();
+ * </code>
+ *
+ * Configuration providers can be composed to create configuration using
+ * conditional logic that can create different configurations in different
+ * environments. You can compose multiple providers into a single provider using
+ * {@see Aws\ClientSideMonitoring\ConfigurationProvider::chain}. This function
+ * accepts providers as variadic arguments and returns a new function that will
+ * invoke each provider until a successful configuration is returned.
+ *
+ * <code>
+ * // First try an INI file at this location.
+ * $a = ConfigurationProvider::ini(null, '/path/to/file.ini');
+ * // Then try an INI file at this location.
+ * $b = ConfigurationProvider::ini(null, '/path/to/other-file.ini');
+ * // Then try loading from environment variables.
+ * $c = ConfigurationProvider::env();
+ * // Combine the three providers together.
+ * $composed = ConfigurationProvider::chain($a, $b, $c);
+ * // Returns a promise that is fulfilled with a configuration or throws.
+ * $promise = $composed();
+ * // Wait on the configuration to resolve.
+ * $config = $promise->wait();
+ * </code>
+ */
+class ConfigurationProvider extends AbstractConfigurationProvider
+    implements ConfigurationProviderInterface
+{
+    const DEFAULT_CLIENT_ID = '';
+    const DEFAULT_ENABLED = false;
+    const DEFAULT_HOST = '127.0.0.1';
+    const DEFAULT_PORT = 31000;
+    const ENV_CLIENT_ID = 'AWS_CSM_CLIENT_ID';
+    const ENV_ENABLED = 'AWS_CSM_ENABLED';
+    const ENV_HOST = 'AWS_CSM_HOST';
+    const ENV_PORT = 'AWS_CSM_PORT';
+    const ENV_PROFILE = 'AWS_PROFILE';
+
+    public static $cacheKey = 'aws_cached_csm_config';
+
+    protected static $interfaceClass = ConfigurationInterface::class;
+    protected static $exceptionClass = ConfigurationException::class;
+
+    /**
+     * Create a default config provider that first checks for environment
+     * variables, then checks for a specified profile in the environment-defined
+     * config file location (env variable is 'AWS_CONFIG_FILE', file location
+     * defaults to ~/.aws/config), then checks for the "default" profile in the
+     * environment-defined config file location, and failing those uses a default
+     * fallback set of configuration options.
+     *
+     * This provider is automatically wrapped in a memoize function that caches
+     * previously provided config options.
+     *
+     * @param array $config
+     *
+     * @return callable
+     */
+    public static function defaultProvider(array $config = [])
+    {
+        $configProviders = [self::env()];
+        if (
+            !isset($config['use_aws_shared_config_files'])
+            || $config['use_aws_shared_config_files'] != false
+        ) {
+            $configProviders[] = self::ini();
+        }
+        $configProviders[] = self::fallback();
+
+        $memo = self::memoize(
+            call_user_func_array([ConfigurationProvider::class, 'chain'], $configProviders)
+        );
+
+        if (isset($config['csm']) && $config['csm'] instanceof CacheInterface) {
+            return self::cache($memo, $config['csm'], self::$cacheKey);
+        }
+
+        return $memo;
+    }
+
+    /**
+     * Provider that creates CSM config from environment variables.
+     *
+     * @return callable
+     */
+    public static function env()
+    {
+        return function () {
+            // Use credentials from environment variables, if available
+            $enabled = getenv(self::ENV_ENABLED);
+            if ($enabled !== false) {
+                return Promise\Create::promiseFor(
+                    new Configuration(
+                        $enabled,
+                        getenv(self::ENV_HOST) ?: self::DEFAULT_HOST,
+                        getenv(self::ENV_PORT) ?: self::DEFAULT_PORT,
+                        getenv(self:: ENV_CLIENT_ID) ?: self::DEFAULT_CLIENT_ID
+                     )
+                );
+            }
+
+            return self::reject('Could not find environment variable CSM config'
+                . ' in ' . self::ENV_ENABLED. '/' . self::ENV_HOST . '/'
+                . self::ENV_PORT . '/' . self::ENV_CLIENT_ID);
+        };
+    }
+
+    /**
+     * Fallback config options when other sources are not set.
+     *
+     * @return callable
+     */
+    public static function fallback()
+    {
+        return function() {
+            return Promise\Create::promiseFor(
+                new Configuration(
+                    self::DEFAULT_ENABLED,
+                    self::DEFAULT_HOST,
+                    self::DEFAULT_PORT,
+                    self::DEFAULT_CLIENT_ID
+                )
+            );
+        };
+    }
+
+    /**
+     * Config provider that creates config using a config file whose location
+     * is specified by an environment variable 'AWS_CONFIG_FILE', defaulting to
+     * ~/.aws/config if not specified
+     *
+     * @param string|null $profile  Profile to use. If not specified will use
+     *                              the "default" profile.
+     * @param string|null $filename If provided, uses a custom filename rather
+     *                              than looking in the default directory.
+     *
+     * @return callable
+     */
+    public static function ini($profile = null, $filename = null)
+    {
+        $filename = $filename ?: (self::getDefaultConfigFilename());
+        $profile = $profile ?: (getenv(self::ENV_PROFILE) ?: 'aws_csm');
+
+        return function () use ($profile, $filename) {
+            if (!@is_readable($filename)) {
+                return self::reject("Cannot read CSM config from $filename");
+            }
+            $data = \Aws\parse_ini_file($filename, true);
+            if ($data === false) {
+                return self::reject("Invalid config file: $filename");
+            }
+            if (!isset($data[$profile])) {
+                return self::reject("'$profile' not found in config file");
+            }
+            if (!isset($data[$profile]['csm_enabled'])) {
+                return self::reject("Required CSM config values not present in
+                    INI profile '{$profile}' ({$filename})");
+            }
+
+            // host is optional
+            if (empty($data[$profile]['csm_host'])) {
+                $data[$profile]['csm_host'] = self::DEFAULT_HOST;
+            }
+
+            // port is optional
+            if (empty($data[$profile]['csm_port'])) {
+                $data[$profile]['csm_port'] = self::DEFAULT_PORT;
+            }
+
+            // client_id is optional
+            if (empty($data[$profile]['csm_client_id'])) {
+                $data[$profile]['csm_client_id'] = self::DEFAULT_CLIENT_ID;
+            }
+
+            return Promise\Create::promiseFor(
+                new Configuration(
+                    $data[$profile]['csm_enabled'],
+                    $data[$profile]['csm_host'],
+                    $data[$profile]['csm_port'],
+                    $data[$profile]['csm_client_id']
+                )
+            );
+        };
+    }
+
+    /**
+     * Unwraps a configuration object in whatever valid form it is in,
+     * always returning a ConfigurationInterface object.
+     *
+     * @param  mixed $config
+     * @return ConfigurationInterface
+     * @throws \InvalidArgumentException
+     */
+    public static function unwrap($config)
+    {
+        if (is_callable($config)) {
+            $config = $config();
+        }
+        if ($config instanceof PromiseInterface) {
+            $config = $config->wait();
+        }
+        if ($config instanceof ConfigurationInterface) {
+            return $config;
+        } elseif (is_array($config) && isset($config['enabled'])) {
+            $client_id = isset($config['client_id']) ? $config['client_id']
+                : self::DEFAULT_CLIENT_ID;
+            $host = isset($config['host']) ? $config['host']
+                : self::DEFAULT_HOST;
+            $port = isset($config['port']) ? $config['port']
+                : self::DEFAULT_PORT;
+            return new Configuration($config['enabled'], $host, $port, $client_id);
+        }
+
+        throw new \InvalidArgumentException('Not a valid CSM configuration '
+            . 'argument.');
+    }
+}
diff --git a/vendor/aws/aws-sdk-php/src/ClientSideMonitoring/Exception/ConfigurationException.php b/vendor/aws/aws-sdk-php/src/ClientSideMonitoring/Exception/ConfigurationException.php
new file mode 100644
index 0000000..827743e
--- /dev/null
+++ b/vendor/aws/aws-sdk-php/src/ClientSideMonitoring/Exception/ConfigurationException.php
@@ -0,0 +1,15 @@
+<?php
+namespace Aws\ClientSideMonitoring\Exception;
+
+use Aws\HasMonitoringEventsTrait;
+use Aws\MonitoringEventsInterface;
+
+
+/**
+ * Represents an error interacting with configuration for client-side monitoring.
+ */
+class ConfigurationException extends \RuntimeException implements
+    MonitoringEventsInterface
+{
+    use HasMonitoringEventsTrait;
+}
diff --git a/vendor/aws/aws-sdk-php/src/ClientSideMonitoring/MonitoringMiddlewareInterface.php b/vendor/aws/aws-sdk-php/src/ClientSideMonitoring/MonitoringMiddlewareInterface.php
new file mode 100644
index 0000000..e3abd12
--- /dev/null
+++ b/vendor/aws/aws-sdk-php/src/ClientSideMonitoring/MonitoringMiddlewareInterface.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace Aws\ClientSideMonitoring;
+
+use Aws\CommandInterface;
+use Aws\Exception\AwsException;
+use Aws\ResultInterface;
+use GuzzleHttp\Psr7\Request;
+use Psr\Http\Message\RequestInterface;
+
+/**
+ * @internal
+ */
+interface MonitoringMiddlewareInterface
+{
+
+    /**
+     * Data for event properties to be sent to the monitoring agent.
+     *
+     * @param RequestInterface $request
+     * @return array
+     */
+    public static function getRequestData(RequestInterface $request);
+
+
+    /**
+     * Data for event properties to be sent to the monitoring agent.
+     *
+     * @param ResultInterface|AwsException|\Exception $klass
+     * @return array
+     */
+    public static function getResponseData($klass);
+
+    public function __invoke(CommandInterface $cmd, RequestInterface $request);
+}
\ No newline at end of file