installed plugin Infinite Uploads version 2.0.8

wp-content/plugins/infinite-uploads/vendor/Aws3/Aws/Endpoint/Partition.php

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+<?php
+
+namespace UglyRobot\Infinite_Uploads\Aws\Endpoint;
+
+use ArrayAccess;
+use UglyRobot\Infinite_Uploads\Aws\HasDataTrait;
+use UglyRobot\Infinite_Uploads\Aws\Sts\RegionalEndpoints\ConfigurationProvider;
+use UglyRobot\Infinite_Uploads\Aws\S3\RegionalEndpoint\ConfigurationProvider as S3ConfigurationProvider;
+use InvalidArgumentException as Iae;
+/**
+ * Default implementation of an AWS partition.
+ */
+final class Partition implements \ArrayAccess, \UglyRobot\Infinite_Uploads\Aws\Endpoint\PartitionInterface
+{
+    use HasDataTrait;
+    private $stsLegacyGlobalRegions = ['ap-northeast-1', 'ap-south-1', 'ap-southeast-1', 'ap-southeast-2', 'aws-global', 'ca-central-1', 'eu-central-1', 'eu-north-1', 'eu-west-1', 'eu-west-2', 'eu-west-3', 'sa-east-1', 'us-east-1', 'us-east-2', 'us-west-1', 'us-west-2'];
+    /**
+     * The partition constructor accepts the following options:
+     *
+     * - `partition`: (string, required) The partition name as specified in an
+     *   ARN (e.g., `aws`)
+     * - `partitionName`: (string) The human readable name of the partition
+     *   (e.g., "AWS Standard")
+     * - `dnsSuffix`: (string, required) The DNS suffix of the partition. This
+     *   value is used to determine how endpoints in the partition are resolved.
+     * - `regionRegex`: (string) A PCRE regular expression that specifies the
+     *   pattern that region names in the endpoint adhere to.
+     * - `regions`: (array, required) A map of the regions in the partition.
+     *   Each key is the region as present in a hostname (e.g., `us-east-1`),
+     *   and each value is a structure containing region information.
+     * - `defaults`: (array) A map of default key value pairs to apply to each
+     *   endpoint of the partition. Any value in an `endpoint` definition will
+     *   supersede any values specified in `defaults`.
+     * - `services`: (array, required) A map of service endpoint prefix name
+     *   (the value found in a hostname) to information about the service.
+     *
+     * @param array $definition
+     *
+     * @throws Iae if any required options are missing
+     */
+    public function __construct(array $definition)
+    {
+        foreach (['partition', 'regions', 'services', 'dnsSuffix'] as $key) {
+            if (!isset($definition[$key])) {
+                throw new \InvalidArgumentException("Partition missing required {$key} field");
+            }
+        }
+        $this->data = $definition;
+    }
+    public function getName()
+    {
+        return $this->data['partition'];
+    }
+    /**
+     * @internal
+     * @return mixed
+     */
+    public function getDnsSuffix()
+    {
+        return $this->data['dnsSuffix'];
+    }
+    public function isRegionMatch($region, $service)
+    {
+        if (isset($this->data['regions'][$region]) || isset($this->data['services'][$service]['endpoints'][$region])) {
+            return true;
+        }
+        if (isset($this->data['regionRegex'])) {
+            return (bool) preg_match("@{$this->data['regionRegex']}@", $region);
+        }
+        return false;
+    }
+    public function getAvailableEndpoints($service, $allowNonRegionalEndpoints = false)
+    {
+        if ($this->isServicePartitionGlobal($service)) {
+            return [$this->getPartitionEndpoint($service)];
+        }
+        if (isset($this->data['services'][$service]['endpoints'])) {
+            $serviceRegions = array_keys($this->data['services'][$service]['endpoints']);
+            return $allowNonRegionalEndpoints ? $serviceRegions : array_intersect($serviceRegions, array_keys($this->data['regions']));
+        }
+        return [];
+    }
+    public function __invoke(array $args = [])
+    {
+        $service = isset($args['service']) ? $args['service'] : '';
+        $region = isset($args['region']) ? $args['region'] : '';
+        $scheme = isset($args['scheme']) ? $args['scheme'] : 'https';
+        $options = isset($args['options']) ? $args['options'] : [];
+        $data = $this->getEndpointData($service, $region, $options);
+        return ['endpoint' => "{$scheme}://" . $this->formatEndpoint(isset($data['hostname']) ? $data['hostname'] : '', $service, $region), 'signatureVersion' => $this->getSignatureVersion($data), 'signingRegion' => isset($data['credentialScope']['region']) ? $data['credentialScope']['region'] : $region, 'signingName' => isset($data['credentialScope']['service']) ? $data['credentialScope']['service'] : $service];
+    }
+    private function getEndpointData($service, $region, $options)
+    {
+        $resolved = $this->resolveRegion($service, $region, $options);
+        $data = isset($this->data['services'][$service]['endpoints'][$resolved]) ? $this->data['services'][$service]['endpoints'][$resolved] : [];
+        $data += isset($this->data['services'][$service]['defaults']) ? $this->data['services'][$service]['defaults'] : [];
+        $data += isset($this->data['defaults']) ? $this->data['defaults'] : [];
+        return $data;
+    }
+    private function getSignatureVersion(array $data)
+    {
+        static $supportedBySdk = ['s3v4', 'v4', 'anonymous'];
+        $possibilities = array_intersect($supportedBySdk, isset($data['signatureVersions']) ? $data['signatureVersions'] : ['v4']);
+        return array_shift($possibilities);
+    }
+    private function resolveRegion($service, $region, $options)
+    {
+        if ($this->isServicePartitionGlobal($service) || $this->isStsLegacyEndpointUsed($service, $region, $options) || $this->isS3LegacyEndpointUsed($service, $region, $options)) {
+            return $this->getPartitionEndpoint($service);
+        }
+        return $region;
+    }
+    private function isServicePartitionGlobal($service)
+    {
+        return isset($this->data['services'][$service]['isRegionalized']) && false === $this->data['services'][$service]['isRegionalized'] && isset($this->data['services'][$service]['partitionEndpoint']);
+    }
+    /**
+     * STS legacy endpoints used for valid regions unless option is explicitly
+     * set to 'regional'
+     *
+     * @param string $service
+     * @param string $region
+     * @param array $options
+     * @return bool
+     */
+    private function isStsLegacyEndpointUsed($service, $region, $options)
+    {
+        return $service === 'sts' && in_array($region, $this->stsLegacyGlobalRegions) && (empty($options['sts_regional_endpoints']) || \UglyRobot\Infinite_Uploads\Aws\Sts\RegionalEndpoints\ConfigurationProvider::unwrap($options['sts_regional_endpoints'])->getEndpointsType() !== 'regional');
+    }
+    /**
+     * S3 legacy us-east-1 endpoint used for valid regions unless option is explicitly
+     * set to 'regional'
+     *
+     * @param string $service
+     * @param string $region
+     * @param array $options
+     * @return bool
+     */
+    private function isS3LegacyEndpointUsed($service, $region, $options)
+    {
+        return $service === 's3' && $region === 'us-east-1' && (empty($options['s3_us_east_1_regional_endpoint']) || \UglyRobot\Infinite_Uploads\Aws\S3\RegionalEndpoint\ConfigurationProvider::unwrap($options['s3_us_east_1_regional_endpoint'])->getEndpointsType() !== 'regional');
+    }
+    private function getPartitionEndpoint($service)
+    {
+        return $this->data['services'][$service]['partitionEndpoint'];
+    }
+    private function formatEndpoint($template, $service, $region)
+    {
+        return strtr($template, ['{service}' => $service, '{region}' => $region, '{dnsSuffix}' => $this->data['dnsSuffix']]);
+    }
+}