installed plugin Infinite Uploads version 2.0.8
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190
wp-content/plugins/infinite-uploads/vendor/Aws3/Aws/EndpointDiscovery/ConfigurationProvider.php
vendored
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190
wp-content/plugins/infinite-uploads/vendor/Aws3/Aws/EndpointDiscovery/ConfigurationProvider.php
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<?php
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namespace UglyRobot\Infinite_Uploads\Aws\EndpointDiscovery;
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use UglyRobot\Infinite_Uploads\Aws\AbstractConfigurationProvider;
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use UglyRobot\Infinite_Uploads\Aws\CacheInterface;
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use UglyRobot\Infinite_Uploads\Aws\ConfigurationProviderInterface;
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use UglyRobot\Infinite_Uploads\Aws\EndpointDiscovery\Exception\ConfigurationException;
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use UglyRobot\Infinite_Uploads\GuzzleHttp\Promise;
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use UglyRobot\Infinite_Uploads\GuzzleHttp\Promise\PromiseInterface;
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/**
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* A configuration provider is a function that returns a promise that is
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* fulfilled with a {@see \Aws\EndpointDiscovery\ConfigurationInterface}
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* or rejected with an {@see \Aws\EndpointDiscovery\Exception\ConfigurationException}.
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*
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* <code>
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* use Aws\EndpointDiscovery\ConfigurationProvider;
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* $provider = ConfigurationProvider::defaultProvider();
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* // Returns a ConfigurationInterface or throws.
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* $config = $provider()->wait();
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* </code>
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*
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* Configuration providers can be composed to create configuration using
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* conditional logic that can create different configurations in different
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* environments. You can compose multiple providers into a single provider using
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* {@see Aws\EndpointDiscovery\ConfigurationProvider::chain}. This function
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* accepts providers as variadic arguments and returns a new function that will
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* invoke each provider until a successful configuration is returned.
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*
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* <code>
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* // First try an INI file at this location.
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* $a = ConfigurationProvider::ini(null, '/path/to/file.ini');
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* // Then try an INI file at this location.
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* $b = ConfigurationProvider::ini(null, '/path/to/other-file.ini');
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* // Then try loading from environment variables.
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* $c = ConfigurationProvider::env();
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* // Combine the three providers together.
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* $composed = ConfigurationProvider::chain($a, $b, $c);
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* // Returns a promise that is fulfilled with a configuration or throws.
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* $promise = $composed();
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* // Wait on the configuration to resolve.
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* $config = $promise->wait();
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* </code>
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*/
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class ConfigurationProvider extends \UglyRobot\Infinite_Uploads\Aws\AbstractConfigurationProvider implements \UglyRobot\Infinite_Uploads\Aws\ConfigurationProviderInterface
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{
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const DEFAULT_ENABLED = false;
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const DEFAULT_CACHE_LIMIT = 1000;
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const ENV_ENABLED = 'AWS_ENDPOINT_DISCOVERY_ENABLED';
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const ENV_ENABLED_ALT = 'AWS_ENABLE_ENDPOINT_DISCOVERY';
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const ENV_PROFILE = 'AWS_PROFILE';
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public static $cacheKey = 'aws_cached_endpoint_discovery_config';
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protected static $interfaceClass = \UglyRobot\Infinite_Uploads\Aws\EndpointDiscovery\ConfigurationInterface::class;
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protected static $exceptionClass = \UglyRobot\Infinite_Uploads\Aws\EndpointDiscovery\Exception\ConfigurationException::class;
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/**
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* Create a default config provider that first checks for environment
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* variables, then checks for a specified profile in the environment-defined
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* config file location (env variable is 'AWS_CONFIG_FILE', file location
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* defaults to ~/.aws/config), then checks for the "default" profile in the
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* environment-defined config file location, and failing those uses a default
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* fallback set of configuration options.
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*
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* This provider is automatically wrapped in a memoize function that caches
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* previously provided config options.
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*
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* @param array $config
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*
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* @return callable
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*/
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public static function defaultProvider(array $config = [])
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{
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$configProviders = [self::env()];
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if (!isset($config['use_aws_shared_config_files']) || $config['use_aws_shared_config_files'] != false) {
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$configProviders[] = self::ini();
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}
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$configProviders[] = self::fallback($config);
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$memo = self::memoize(call_user_func_array('self::chain', $configProviders));
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if (isset($config['endpoint_discovery']) && $config['endpoint_discovery'] instanceof CacheInterface) {
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return self::cache($memo, $config['endpoint_discovery'], self::$cacheKey);
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}
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return $memo;
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}
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/**
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* Provider that creates config from environment variables.
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*
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* @param $cacheLimit
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* @return callable
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*/
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public static function env($cacheLimit = self::DEFAULT_CACHE_LIMIT)
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{
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return function () use($cacheLimit) {
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// Use config from environment variables, if available
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$enabled = getenv(self::ENV_ENABLED);
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if ($enabled === false || $enabled === '') {
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$enabled = getenv(self::ENV_ENABLED_ALT);
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}
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if ($enabled !== false && $enabled !== '') {
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return \UglyRobot\Infinite_Uploads\GuzzleHttp\Promise\promise_for(new \UglyRobot\Infinite_Uploads\Aws\EndpointDiscovery\Configuration($enabled, $cacheLimit));
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}
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return self::reject('Could not find environment variable config' . ' in ' . self::ENV_ENABLED);
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};
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}
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/**
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* Fallback config options when other sources are not set. Will check the
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* service model for any endpoint discovery required operations, and enable
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* endpoint discovery in that case. If no required operations found, will use
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* the class default values.
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*
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* @param array $config
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* @return callable
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*/
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public static function fallback($config = [])
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{
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$enabled = self::DEFAULT_ENABLED;
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if (!empty($config['api_provider']) && !empty($config['service']) && !empty($config['version'])) {
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$provider = $config['api_provider'];
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$apiData = $provider('api', $config['service'], $config['version']);
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if (!empty($apiData['operations'])) {
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foreach ($apiData['operations'] as $operation) {
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if (!empty($operation['endpointdiscovery']['required'])) {
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$enabled = true;
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}
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}
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}
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}
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return function () use($enabled) {
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return \UglyRobot\Infinite_Uploads\GuzzleHttp\Promise\promise_for(new \UglyRobot\Infinite_Uploads\Aws\EndpointDiscovery\Configuration($enabled, self::DEFAULT_CACHE_LIMIT));
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};
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}
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/**
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* Config provider that creates config using a config file whose location
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* is specified by an environment variable 'AWS_CONFIG_FILE', defaulting to
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* ~/.aws/config if not specified
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*
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* @param string|null $profile Profile to use. If not specified will use
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* the "default" profile.
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* @param string|null $filename If provided, uses a custom filename rather
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* than looking in the default directory.
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* @param int $cacheLimit
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*
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* @return callable
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*/
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public static function ini($profile = null, $filename = null, $cacheLimit = self::DEFAULT_CACHE_LIMIT)
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{
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$filename = $filename ?: self::getDefaultConfigFilename();
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$profile = $profile ?: (getenv(self::ENV_PROFILE) ?: 'default');
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return function () use($profile, $filename, $cacheLimit) {
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if (!is_readable($filename)) {
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return self::reject("Cannot read configuration from {$filename}");
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}
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$data = \UglyRobot\Infinite_Uploads\Aws\parse_ini_file($filename, true);
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if ($data === false) {
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return self::reject("Invalid config file: {$filename}");
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}
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if (!isset($data[$profile])) {
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return self::reject("'{$profile}' not found in config file");
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}
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if (!isset($data[$profile]['endpoint_discovery_enabled'])) {
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return self::reject("Required endpoint discovery config values \n not present in INI profile '{$profile}' ({$filename})");
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}
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return \UglyRobot\Infinite_Uploads\GuzzleHttp\Promise\promise_for(new \UglyRobot\Infinite_Uploads\Aws\EndpointDiscovery\Configuration($data[$profile]['endpoint_discovery_enabled'], $cacheLimit));
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};
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}
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/**
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* Unwraps a configuration object in whatever valid form it is in,
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* always returning a ConfigurationInterface object.
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*
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* @param mixed $config
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* @return ConfigurationInterface
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* @throws \InvalidArgumentException
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*/
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public static function unwrap($config)
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{
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if (is_callable($config)) {
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$config = $config();
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}
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if ($config instanceof PromiseInterface) {
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$config = $config->wait();
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}
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if ($config instanceof ConfigurationInterface) {
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return $config;
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} elseif (is_array($config) && isset($config['enabled'])) {
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if (isset($config['cache_limit'])) {
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return new \UglyRobot\Infinite_Uploads\Aws\EndpointDiscovery\Configuration($config['enabled'], $config['cache_limit']);
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}
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return new \UglyRobot\Infinite_Uploads\Aws\EndpointDiscovery\Configuration($config['enabled'], self::DEFAULT_CACHE_LIMIT);
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}
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throw new \InvalidArgumentException('Not a valid endpoint_discovery ' . 'configuration argument.');
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}
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}
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