testing

PhabricatorKeyring.php
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			<?php

			final class PhabricatorKeyring extends Phobject {

			private static $hasReadConfiguration;
			private static $keyRing = array();

			public static function addKey($spec) {
			self::$keyRing[$spec['name']] = $spec;
			}

			public static function getKey($name, $type) {
			self::readConfiguration();

			if (empty(self::$keyRing[$name])) {
			throw new Exception(
			pht(
			'No key "%s" exists in keyring.',
			$name));
			}

			$spec = self::$keyRing[$name];

			$material = base64_decode($spec['material.base64'], true);
			return new PhutilOpaqueEnvelope($material);
			}

			public static function getDefaultKeyName($type) {
			self::readConfiguration();

			foreach (self::$keyRing as $name => $key) {
			if (!empty($key['default'])) {
			return $name;
			}
			}

			return null;
			}

			private static function readConfiguration() {
			if (self::$hasReadConfiguration) {
			return true;
			}

			self::$hasReadConfiguration = true;

			foreach (PhabricatorEnv::getEnvConfig('keyring') as $spec) {
			self::addKey($spec);
			}
			}

			}