1 files changed, 236 insertions, 0 deletions
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.');
+    }
+}