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PATH: home / shotlining / public_html / wp-content / plugins / w3-total-cache / vendor / aws / aws-sdk-php / src

<?php
namespace Aws;

use Aws\Exception\AwsException;
use Aws\Retry\RetryHelperTrait;
use GuzzleHttp\Exception\RequestException;
use Psr\Http\Message\RequestInterface;
use GuzzleHttp\Promise\PromiseInterface;
use GuzzleHttp\Promise;

/**
 * Middleware that retries failures. V1 implemention that supports 'legacy' mode.
 *
 * @internal
 */
class RetryMiddleware
{
    use RetryHelperTrait;

private static $retryStatusCodes = [
        500 => true,
        502 => true,
        503 => true,
        504 => true
    ];

private static $retryCodes = [
        // Throttling error
        'RequestLimitExceeded'                   => true,
        'Throttling'                             => true,
        'ThrottlingException'                    => true,
        'ThrottledException'                     => true,
        'ProvisionedThroughputExceededException' => true,
        'RequestThrottled'                       => true,
        'BandwidthLimitExceeded'                 => true,
        'RequestThrottledException'              => true,
        'TooManyRequestsException'               => true,
        'IDPCommunicationError'                  => true,
        'EC2ThrottledException'                  => true,
    ];

private $decider;
    private $delay;
    private $nextHandler;
    private $collectStats;

public function __construct(
        callable $decider,
        callable $delay,
        callable $nextHandler,
        $collectStats = false
    ) {
        $this->decider = $decider;
        $this->delay = $delay;
        $this->nextHandler = $nextHandler;
        $this->collectStats = (bool) $collectStats;
    }

/**
     * Creates a default AWS retry decider function.
     *
     * The optional $extraConfig parameter is an associative array
     * that specifies additional retry conditions on top of the ones specified
     * by default by the Aws\RetryMiddleware class, with the following keys:
     *
     * - errorCodes: (string[]) An indexed array of AWS exception codes to retry.
     *   Optional.
     * - statusCodes: (int[]) An indexed array of HTTP status codes to retry.
     *   Optional.
     * - curlErrors: (int[]) An indexed array of Curl error codes to retry. Note
     *   these should be valid Curl constants. Optional.
     *
     * @param int $maxRetries
     * @param array $extraConfig
     * @return callable
     */
    public static function createDefaultDecider(
        $maxRetries = 3,
        $extraConfig = []
    ) {
        $retryCurlErrors = [];
        if (extension_loaded('curl')) {
            $retryCurlErrors[CURLE_RECV_ERROR] = true;
        }

return function (
            $retries,
            CommandInterface $command,
            RequestInterface $request,
            ?ResultInterface $result = null,
            $error = null
        ) use ($maxRetries, $retryCurlErrors, $extraConfig) {
            // Allow command-level options to override this value
            $maxRetries = null !== $command['@retries'] ?
                $command['@retries']
                : $maxRetries;

$isRetryable = self::isRetryable(
                $result,
                $error,
                $retryCurlErrors,
                $extraConfig
            );

if ($retries >= $maxRetries) {
                if (!empty($error)
                    && $error instanceof AwsException
                    && $isRetryable
                ) {
                    $error->setMaxRetriesExceeded();
                }
                return false;
            }

return $isRetryable;
        };
    }

private static function isRetryable(
        $result,
        $error,
        $retryCurlErrors,
        $extraConfig = []
    ) {
        $errorCodes = self::$retryCodes;
        if (!empty($extraConfig['error_codes'])
            && is_array($extraConfig['error_codes'])
        ) {
            foreach($extraConfig['error_codes'] as $code) {
                $errorCodes[$code] = true;
            }
        }

$statusCodes = self::$retryStatusCodes;
        if (!empty($extraConfig['status_codes'])
            && is_array($extraConfig['status_codes'])
        ) {
            foreach($extraConfig['status_codes'] as $code) {
                $statusCodes[$code] = true;
            }
        }

if (!empty($extraConfig['curl_errors'])
            && is_array($extraConfig['curl_errors'])
        ) {
            foreach($extraConfig['curl_errors'] as $code) {
                $retryCurlErrors[$code] = true;
            }
        }

if (!$error) {
            if (!isset($result['@metadata']['statusCode'])) {
                return false;
            }
            return isset($statusCodes[$result['@metadata']['statusCode']]);
        }

if (!($error instanceof AwsException)) {
            return false;
        }

if ($error->isConnectionError()) {
            return true;
        }

if (isset($errorCodes[$error->getAwsErrorCode()])) {
            return true;
        }

if (isset($statusCodes[$error->getStatusCode()])) {
            return true;
        }

if (count($retryCurlErrors)
            && ($previous = $error->getPrevious())
            && $previous instanceof RequestException
        ) {
            if (method_exists($previous, 'getHandlerContext')) {
                $context = $previous->getHandlerContext();
                return !empty($context['errno'])
                    && isset($retryCurlErrors[$context['errno']]);
            }

$message = $previous->getMessage();
            foreach (array_keys($retryCurlErrors) as $curlError) {
                if (strpos($message, 'cURL error ' . $curlError . ':') === 0) {
                    return true;
                }
            }
        }

return false;
    }

/**
     * Delay function that calculates an exponential delay.
     *
     * Exponential backoff with jitter, 100ms base, 20 sec ceiling
     *
     * @param $retries - The number of retries that have already been attempted
     *
     * @return int
     *
     * @link https://aws.amazon.com/blogs/architecture/exponential-backoff-and-jitter/
     */
    public static function exponentialDelay($retries)
    {
        return mt_rand(0, (int) min(20000, (int) pow(2, $retries) * 100));
    }

/**
     * @param CommandInterface $command
     * @param RequestInterface $request
     *
     * @return PromiseInterface
     */
    public function __invoke(
        CommandInterface $command,
        ?RequestInterface $request = null
    ) {
        $retries = 0;
        $requestStats = [];
        $monitoringEvents = [];
        $handler = $this->nextHandler;
        $decider = $this->decider;
        $delay = $this->delay;

$request = $this->addRetryHeader($request, 0, 0);

$g = function ($value) use (
            $handler,
            $decider,
            $delay,
            $command,
            $request,
            &$retries,
            &$requestStats,
            &$monitoringEvents,
            &$g
        ) {
            $this->updateHttpStats($value, $requestStats);

if ($value instanceof MonitoringEventsInterface) {
                $reversedEvents = array_reverse($monitoringEvents);
                $monitoringEvents = array_merge($monitoringEvents, $value->getMonitoringEvents());
                foreach ($reversedEvents as $event) {
                    $value->prependMonitoringEvent($event);
                }
            }
            if ($value instanceof \Exception || $value instanceof \Throwable) {
                if (!$decider($retries, $command, $request, null, $value)) {
                    return Promise\Create::rejectionFor(
                        $this->bindStatsToReturn($value, $requestStats)
                    );
                }
            } elseif ($value instanceof ResultInterface
                && !$decider($retries, $command, $request, $value, null)
            ) {
                return $this->bindStatsToReturn($value, $requestStats);
            }

// Delay fn is called with 0, 1, ... so increment after the call.
            $delayBy = $delay($retries++);
            $command['@http']['delay'] = $delayBy;
            if ($this->collectStats) {
                $this->updateStats($retries, $delayBy, $requestStats);
            }

// Update retry header with retry count and delayBy
            $request = $this->addRetryHeader($request, $retries, $delayBy);

return $handler($command, $request)->then($g, $g);
        };

return $handler($command, $request)->then($g, $g);
    }
}

[+] ..
[+] Pinpoint
[+] Chime
[+] WellArchitected
[+] Health
[-] IdempotencyTokenMiddleware.php [edit]
[+] Handler
[+] Ssm
[+] SecurityHub
[+] BedrockAgentRuntime
[+] EventBridge
[+] SageMakerGeospatial
[+] DefaultsMode
[+] ResourceGroupsTaggingAPI
[+] WAFV2
[+] Identity
[+] Route53
[+] Sfn
[+] Exception
[+] ivschat
[+] S3
[-] MultiRegionClient.php [edit]
[+] Route53Resolver
[+] ConnectCampaignService
[+] MigrationHubStrategyRecommendations
[+] Sns
[+] Ses
[+] WafRegional
[+] QuickSight
[+] Sts
[+] CloudFormation
[+] Route53RecoveryControlConfig
[+] WorkDocs
[+] PinpointSMSVoiceV2
[+] DeviceFarm
[+] CleanRoomsML
[+] CognitoIdentity
[+] drs
[-] Result.php [edit]
[+] Ecs
[-] ClientResolver.php [edit]
[+] DataSync
[+] EndpointV2
[+] ForecastService
[+] ConnectCases
[+] IoTThingsGraph
[+] TaxSettings
[+] Route53RecoveryReadiness
[+] AppSync
[+] Greengrass
[+] AppConfigData
[+] ChimeSDKVoice
[+] BedrockDataAutomationRuntime
[+] MWAA
[+] DSQL
[+] BCMPricingCalculator
[+] MarketplaceReporting
[+] BedrockDataAutomation
[+] signer
[+] NeptuneGraph
[+] ApplicationSignals
[+] LookoutforVision
[+] Translate
[+] PrivateNetworks
[+] CodePipeline
[+] Iot
[+] SupplyChain
[+] BackupSearch
[+] RedshiftServerless
[+] PcaConnectorAd
[+] CloudWatchRUM
[+] ApiGatewayManagementApi
[+] FraudDetector
[+] EMRServerless
[+] Comprehend
[+] LexRuntimeV2
[+] LexRuntimeService
[+] AmplifyBackend
[+] SnowDeviceManagement
[+] OAM
[+] Route53Domains
[+] Ecr
[+] Bedrock
[+] Omics
[+] PinpointSMSVoice
[+] Lightsail
[+] RAM
[+] CodeCommit
[-] CommandPool.php [edit]
[+] TimestreamWrite
[+] Schemas
[+] Pipes
[-] AwsClient.php [edit]
[+] CloudControlApi
[-] AbstractConfigurationProvider.php [edit]
[+] DatabaseMigrationService
[-] InputValidationMiddleware.php [edit]
[-] MockHandler.php [edit]
[+] ApplicationAutoScaling
[+] EMRContainers
[+] ComprehendMedical
[+] CloudFront
[+] Shield
[+] NetworkFlowMonitor
[+] WorkMail
[+] MediaConnect
[+] KinesisVideoMedia
[+] IVS
[+] ConnectWisdomService
[+] ResourceGroups
[+] CodeStarconnections
[+] LaunchWizard
[+] EKS
[+] LicenseManager
[+] SageMakerRuntime
[+] GeoRoutes
[+] AutoScaling
[+] CostExplorer
[+] VerifiedPermissions
[+] finspace
[+] Emr
[+] Panorama
[+] FMS
[-] TraceMiddleware.php [edit]
[+] NotificationsContacts
[+] Appstream
[+] BackupGateway
[-] AwsClientInterface.php [edit]
[+] MedicalImaging
[-] HasDataTrait.php [edit]
[+] Proton
[+] Notifications
[+] ServiceQuotas
[+] MarketplaceEntitlementService
[-] ResultPaginator.php [edit]
[-] QueryCompatibleInputMiddleware.php [edit]
[+] MainframeModernization
[+] OpsWorksCM
[+] CodeBuild
[+] imagebuilder
[+] ElasticTranscoder
[+] Budgets
[+] IoTSecureTunneling
[+] Route53RecoveryCluster
[+] AppMesh
[-] RetryMiddlewareV2.php [edit]
[+] Multipart
[+] IoTDeviceAdvisor
[+] Waf
[+] Polly
[+] FSx
[+] CloudFrontKeyValueStore
[+] Inspector2
[+] XRay
[-] LruArrayCache.php [edit]
[+] KinesisVideoSignalingChannels
[+] Athena
[+] ConnectCampaignsV2
[+] InspectorScan
[+] WorkMailMessageFlow
[+] AmplifyUIBuilder
[+] ApiGatewayV2
[+] PaymentCryptography
[+] EBS
[+] Billing
[+] Endpoint
[-] Waiter.php [edit]
[+] MediaLive
[+] SecretsManager
[+] LakeFormation
[+] ServerlessApplicationRepository
[+] FIS
[+] Macie2
[+] RedshiftDataAPIService
[-] MonitoringEventsInterface.php [edit]
[+] Credentials
[+] ResourceExplorer2
[+] PartnerCentralSelling
[+] MigrationHub
[+] MarketplaceCommerceAnalytics
[+] MTurk
[-] RetryMiddleware.php [edit]
[+] IoTEventsData
[+] KinesisVideoWebRTCStorage
[+] MediaStore
[+] Amplify
[+] BillingConductor
[+] Kms
[+] CognitoSync
[+] Efs
[+] WorkSpacesThinClient
[+] DAX
[+] CloudWatchLogs
[+] ChimeSDKMessaging
[+] Rekognition
[+] EKSAuth
[+] ChimeSDKIdentity
[+] RolesAnywhere
[+] CodeConnections
[+] CostOptimizationHub
[+] ForecastQueryService
[+] GeoMaps
[+] CodeStarNotifications
[+] ApplicationCostProfiler
[+] LicenseManagerUserSubscriptions
[+] StorageGateway
[-] functions.php [edit]
[+] GlueDataBrew
[+] Iam
[+] Glacier
[+] CodeGuruSecurity
[+] BCMDataExports
[+] AppRunner
[+] Batch
[+] Swf
[+] MediaTailor
[+] KendraRanking
[+] SSO
[+] PersonalizeEvents
[+] EC2InstanceConnect
[+] DataZone
[+] MediaStoreData
[+] IoTEvents
[+] PCS
[-] EndpointParameterMiddleware.php [edit]
[-] HasMonitoringEventsTrait.php [edit]
[+] SavingsPlans
[+] SSMContacts
[-] Middleware.php [edit]
[+] Rds
[+] AppTest
[+] Sqs
[+] IotDataPlane
[+] ControlTower
[+] CloudHsm
[+] CodeCatalyst
[-] RequestCompressionMiddleware.php [edit]
[+] IoTFleetWise
[+] VPCLattice
[+] Lambda
[+] FreeTier
[+] SSMIncidents
[+] MediaConvert
[+] IoTTwinMaker
[+] ImportExport
[+] SageMakerFeatureStoreRuntime
[+] DataExchange
[+] PI
[+] CodeDeploy
[+] ACMPCA
[-] CacheInterface.php [edit]
[+] Synthetics
[-] StreamRequestPayloadMiddleware.php [edit]
[+] ConnectParticipant
[+] OpsWorks
[+] DocDBElastic
[+] ElasticLoadBalancing
[+] KinesisAnalytics
[+] CloudSearch
[-] MetricsBuilder.php [edit]
[+] CloudTrail
[+] ElasticBeanstalk
[+] IoTAnalytics
[+] MarketplaceAgreement
[-] CommandInterface.php [edit]
[-] PresignUrlMiddleware.php [edit]
[+] Transfer
[+] EndpointDiscovery
[+] Backup
[+] ConfigService
[+] ManagedBlockchain
[+] Firehose
[+] SSMQuickSetup
[+] Arn
[+] PersonalizeRuntime
[+] GuardDuty
[-] Psr16CacheAdapter.php [edit]
[+] Textract
[+] KafkaConnect
[+] SimSpaceWeaver
[+] Detective
[+] GreengrassV2
[+] SsmSap
[+] Account
[+] ElasticsearchService
[+] KinesisVideo
[+] QApps
[+] AutoScalingPlans
[+] MediaPackage
[+] AuditManager
[+] TimestreamInfluxDB
[+] MediaPackageV2
[+] Redshift
[+] IoTSiteWise
[+] B2bi
[+] SupportApp
[+] ComputeOptimizer
[+] ResilienceHub
[+] Crypto
[+] ApiGateway
[+] CloudHSMV2
[+] MemoryDB
[+] ManagedGrafana
[-] JsonCompiler.php [edit]
[+] ManagedBlockchainQuery
[+] ObservabilityAdmin
[+] AppRegistry
[+] LexModelsV2
[-] AwsClientTrait.php [edit]
[+] LicenseManagerLinuxSubscriptions
[+] GroundStation
[+] MigrationHubRefactorSpaces
[+] NetworkManager
[+] Route53Profiles
[+] IVSRealTime
[+] Invoicing
[+] Support
[+] CodeGuruProfiler
[+] MachineLearning
[+] S3Tables
[+] ChimeSDKMeetings
[+] TrustedAdvisor
[+] AccessAnalyzer
[+] ServiceCatalog
[+] Ec2
[+] IoTFleetHub
[+] WorkSpacesWeb
[+] LocationService
[+] Deadline
[+] Neptune
[+] DynamoDb
[-] ResultInterface.php [edit]
[+] Appflow
[+] SnowBall
[+] EntityResolution
[+] WorkSpaces
[+] TranscribeService
[+] MQ
[+] Inspector
[-] History.php [edit]
[+] ConnectContactLens
[+] IoTJobsDataPlane
[+] KinesisVideoArchivedMedia
[+] DLM
[+] ApplicationInsights
[+] ElastiCache
[+] Configuration
[+] VoiceID
[+] SecurityLake
[+] LookoutEquipment
[-] ConfigurationProviderInterface.php [edit]
[+] Artifact
[+] ClientSideMonitoring
[+] QConnect
[+] MarketplaceMetering
[+] PaymentCryptographyData
[+] Neptunedata
[+] AppConfig
[+] ServiceDiscovery
[+] mgn
[+] NetworkMonitor
[+] CustomerProfiles
[+] Auth
[+] BedrockAgent
[+] RoboMaker
[+] MarketplaceDeployment
[+] SSOAdmin
[+] DataPipeline
[+] DevOpsGuru
[+] Repostspace
[+] Glue
[+] SageMakerMetrics
[+] LexModelBuildingService
[+] Pricing
[+] S3Outposts
[+] ChimeSDKMediaPipelines
[-] HandlerList.php [edit]
[+] ApplicationDiscoveryService
[+] RDSDataService
[+] SagemakerEdgeManager
[+] AppFabric
[+] QLDBSession
[-] Sdk.php [edit]
[+] AugmentedAIRuntime
[+] CloudSearchDomain
[+] CostandUsageReportService
[+] Personalize
[+] Api
[+] Braket
[+] DirectoryService
[+] DynamoDbStreams
[+] SesV2
[+] Retry
[+] Sms
[+] Tnb
[+] Token
[+] QBusiness
[-] HashingStream.php [edit]
[-] PhpHash.php [edit]
[+] Kinesis
[+] Script
[-] PsrCacheAdapter.php [edit]
[-] ResponseContainerInterface.php [edit]
[+] CloudWatchEvents
[+] SSOOIDC
[-] WrappedHttpHandler.php [edit]
[+] ARCZonalShift
[+] Keyspaces
[-] HashInterface.php [edit]
[-] UserAgentMiddleware.php [edit]
[+] CodeGuruReviewer
[+] Organizations
[+] OpenSearchServerless
[+] KinesisAnalyticsV2
[+] OSIS
[+] TimestreamQuery
[+] NetworkFirewall
[+] MarketplaceCatalog
[+] ElasticLoadBalancingV2
[+] PrometheusService
[+] CodeArtifact
[+] Outposts
[+] IdentityStore
[+] Cloud9
[+] FinSpaceData
[+] PinpointEmail
[+] SageMaker
[+] S3Control
[+] Chatbot
[+] OpenSearchService
[+] InternetMonitor
[+] GlobalAccelerator
[-] Command.php [edit]
[+] PcaConnectorScep
[+] Acm
[+] LookoutMetrics
[+] Scheduler
[+] ElasticInference
[+] QLDB
[+] CloudTrailData
[+] kendra
[+] data
[+] SecurityIR
[+] GeoPlaces
[+] BedrockRuntime
[+] MailManager
[-] DoctrineCacheAdapter.php [edit]
[+] MediaPackageVod
[+] RecycleBin
[+] CognitoIdentityProvider
[+] CleanRooms
[+] MigrationHubConfig
[+] CloudWatchEvidently
[+] DocDB
[+] ECRPublic
[+] Signature
[+] GameLift
[+] Connect
[+] IoTWireless
[+] Kafka
[+] CloudWatch
[+] ControlCatalog
[+] CloudDirectory
[+] SocialMessaging
[+] DirectConnect
[+] MigrationHubOrchestrator
[+] HealthLake
[+] AppIntegrationsService
[+] DirectoryServiceData