Subiendo proyecto completo sin restricciones de git ignore

vendor/aws/aws-sdk-php/src/Configuration/ConfigurationResolver.php

@@ -0,0 +1,180 @@
+<?php
+
+namespace Aws\Configuration;
+
+class ConfigurationResolver
+{
+    const ENV_PROFILE = 'AWS_PROFILE';
+    const ENV_CONFIG_FILE = 'AWS_CONFIG_FILE';
+
+    public static $envPrefix = 'AWS_';
+
+    /**
+     * Generic configuration resolver 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 value.
+     *
+     * @param string $key      Configuration key to be used when attempting
+     *                         to retrieve value from the environment or ini file.
+     * @param mixed $defaultValue
+     * @param string $expectedType  The expected type of the retrieved value.
+     * @param array $config
+     * @param array $additionalArgs
+     *
+     * @return mixed
+     */
+    public static function resolve(
+        $key,
+        $defaultValue,
+        $expectedType,
+        $config = []
+    )
+    {
+        $envValue = self::env($key, $expectedType);
+        if (!is_null($envValue)) {
+            return $envValue;
+        }
+
+        if (!isset($config['use_aws_shared_config_files'])
+            || $config['use_aws_shared_config_files'] != false
+        ) {
+            $iniValue = self::ini($key, $expectedType);
+            if(!is_null($iniValue)) {
+                return $iniValue;
+            }
+        }
+
+        return $defaultValue;
+    }
+
+    /**
+     * Resolves config values from environment variables.
+     *
+     * @param string $key      Configuration key to be used when attempting
+     *                         to retrieve value from the environment.
+     * @param string $expectedType  The expected type of the retrieved value.
+     *
+     * @return null | mixed
+     */
+    public static function env($key, $expectedType)
+    {
+        // Use config from environment variables, if available
+        $envValue = getenv(self::$envPrefix . strtoupper($key));
+        if (!empty($envValue)) {
+            if ($expectedType) {
+                $envValue = self::convertType($envValue, $expectedType);
+            }
+            return $envValue;
+        }
+
+        return null;
+    }
+
+    /**
+     * Gets config values from a config file whose location
+     * is specified by an environment variable 'AWS_CONFIG_FILE', defaulting to
+     * ~/.aws/config if not specified
+     *
+     *
+     * @param string $key      Configuration key to be used when attempting
+     *                         to retrieve value from ini file.
+     * @param string $expectedType  The expected type of the retrieved value.
+     * @param string|null $profile  Profile to use. If not specified will use
+     *                              the "default" profile.
+     * @param string|null $filename If provided, uses a custom filename rather
+     *                              than looking in the default directory.
+     *
+     * @return null | mixed
+     */
+    public static function ini($key, $expectedType, $profile = null, $filename = null)
+    {
+        $filename = $filename ?: (self::getDefaultConfigFilename());
+        $profile = $profile ?: (getenv(self::ENV_PROFILE) ?: 'default');
+
+        if (!@is_readable($filename)) {
+            return null;
+        }
+        // Use INI_SCANNER_NORMAL instead of INI_SCANNER_TYPED for PHP 5.5 compatibility
+        //TODO change after deprecation
+        $data = @\Aws\parse_ini_file($filename, true, INI_SCANNER_NORMAL);
+        if ($data === false
+            || !isset($data[$profile])
+            || !isset($data[$profile][$key])
+        ) {
+            return null;
+        }
+
+        // INI_SCANNER_NORMAL parses false-y values as an empty string
+        if ($data[$profile][$key] === "") {
+            if ($expectedType === 'bool') {
+                $data[$profile][$key] = false;
+            } elseif ($expectedType === 'int') {
+                $data[$profile][$key] = 0;
+            }
+        }
+
+        return self::convertType($data[$profile][$key], $expectedType);
+    }
+
+    /**
+     * Gets the environment's HOME directory if available.
+     *
+     * @return null | string
+     */
+    private static function getHomeDir()
+    {
+        // On Linux/Unix-like systems, use the HOME environment variable
+        if ($homeDir = getenv('HOME')) {
+            return $homeDir;
+        }
+
+        // Get the HOMEDRIVE and HOMEPATH values for Windows hosts
+        $homeDrive = getenv('HOMEDRIVE');
+        $homePath = getenv('HOMEPATH');
+
+        return ($homeDrive && $homePath) ? $homeDrive . $homePath : null;
+    }
+
+    /**
+     * Gets default config file location from environment, falling back to aws
+     * default location
+     *
+     * @return string
+     */
+    private static function getDefaultConfigFilename()
+    {
+        if ($filename = getenv(self::ENV_CONFIG_FILE)) {
+            return $filename;
+        }
+        return self::getHomeDir() . '/.aws/config';
+    }
+
+    /**
+     * Normalizes string values pulled out of ini files and
+     * environment variables.
+     *
+     * @param string $value The value retrieved from the environment or
+     *                      ini file.
+     * @param $type $string The type that the value needs to be converted to.
+     *
+     * @return mixed
+     */
+    private static function convertType($value, $type)
+    {
+        if ($type === 'bool'
+            && !is_null($convertedValue = \Aws\boolean_value($value))
+        ) {
+            return $convertedValue;
+        }
+
+        if ($type === 'int'
+            && filter_var($value, FILTER_VALIDATE_INT)
+        ) {
+            $value = intVal($value);
+        }
+        return $value;
+    }
+}