From b5d3f3c5659456f4baaca5a592d644a17872da90 Mon Sep 17 00:00:00 2001
From: Tim Otten <totten@civicrm.org>
Date: Wed, 20 Jun 2018 17:35:14 -0700
Subject: [PATCH] (dev/core#174) ArrayCache - Updates to comply with PSR-16

---
 CRM/Utils/Cache/ArrayCache.php             | 32 ++++++++++++++---
 tests/phpunit/E2E/Cache/ArrayCacheTest.php | 41 ++++++++++++++++++++++
 2 files changed, 68 insertions(+), 5 deletions(-)
 create mode 100644 tests/phpunit/E2E/Cache/ArrayCacheTest.php

diff --git a/CRM/Utils/Cache/ArrayCache.php b/CRM/Utils/Cache/ArrayCache.php
index c74e1900f1..287c6a3e5c 100644
--- a/CRM/Utils/Cache/ArrayCache.php
+++ b/CRM/Utils/Cache/ArrayCache.php
@@ -39,11 +39,15 @@ class CRM_Utils_Cache_Arraycache implements CRM_Utils_Cache_Interface {
   use CRM_Utils_Cache_NaiveMultipleTrait;
   use CRM_Utils_Cache_NaiveHasTrait; // TODO Native implementation
 
+  const DEFAULT_TIMEOUT = 3600;
+
   /**
    * The cache storage container, an in memory array by default
    */
   protected $_cache;
 
+  protected $_expires;
+
   /**
    * Constructor.
    *
@@ -54,6 +58,7 @@ class CRM_Utils_Cache_Arraycache implements CRM_Utils_Cache_Interface {
    */
   public function __construct($config) {
     $this->_cache = array();
+    $this->_expires = array();
   }
 
   /**
@@ -61,12 +66,12 @@ class CRM_Utils_Cache_Arraycache implements CRM_Utils_Cache_Interface {
    * @param mixed $value
    * @param null|int|\DateInterval $ttl
    * @return bool
+   * @throws \Psr\SimpleCache\InvalidArgumentException
    */
   public function set($key, $value, $ttl = NULL) {
-    if ($ttl !== NULL) {
-      throw new \RuntimeException("FIXME: " . __CLASS__ . "::set() should support non-NULL TTL");
-    }
-    $this->_cache[$key] = $value;
+    CRM_Utils_Cache::assertValidKey($key);
+    $this->_cache[$key] = $this->reobjectify($value);
+    $this->_expires[$key] = CRM_Utils_Date::convertCacheTtlToExpires($ttl, self::DEFAULT_TIMEOUT);
     return TRUE;
   }
 
@@ -75,22 +80,35 @@ class CRM_Utils_Cache_Arraycache implements CRM_Utils_Cache_Interface {
    * @param mixed $default
    *
    * @return mixed
+   * @throws \Psr\SimpleCache\InvalidArgumentException
    */
   public function get($key, $default = NULL) {
-    return CRM_Utils_Array::value($key, $this->_cache, $default);
+    CRM_Utils_Cache::assertValidKey($key);
+    if (isset($this->_expires[$key]) && is_numeric($this->_expires[$key]) && $this->_expires[$key] <= time()) {
+      return $default;
+    }
+    if (array_key_exists($key, $this->_cache)) {
+      return $this->reobjectify($this->_cache[$key]);
+    }
+    return $default;
   }
 
   /**
    * @param string $key
    * @return bool
+   * @throws \Psr\SimpleCache\InvalidArgumentException
    */
   public function delete($key) {
+    CRM_Utils_Cache::assertValidKey($key);
+
     unset($this->_cache[$key]);
+    unset($this->_expires[$key]);
     return TRUE;
   }
 
   public function flush() {
     unset($this->_cache);
+    unset($this->_expires);
     $this->_cache = array();
     return TRUE;
   }
@@ -99,4 +117,8 @@ class CRM_Utils_Cache_Arraycache implements CRM_Utils_Cache_Interface {
     return $this->flush();
   }
 
+  private function reobjectify($value) {
+    return is_object($value) ? unserialize(serialize($value)) : $value;
+  }
+
 }
diff --git a/tests/phpunit/E2E/Cache/ArrayCacheTest.php b/tests/phpunit/E2E/Cache/ArrayCacheTest.php
new file mode 100644
index 0000000000..65bc045eb4
--- /dev/null
+++ b/tests/phpunit/E2E/Cache/ArrayCacheTest.php
@@ -0,0 +1,41 @@
+<?php
+/*
+ +--------------------------------------------------------------------+
+ | CiviCRM version 5                                                  |
+ +--------------------------------------------------------------------+
+ | Copyright CiviCRM LLC (c) 2004-2018                                |
+ +--------------------------------------------------------------------+
+ | This file is a part of CiviCRM.                                    |
+ |                                                                    |
+ | CiviCRM is free software; you can copy, modify, and distribute it  |
+ | under the terms of the GNU Affero General Public License           |
+ | Version 3, 19 November 2007 and the CiviCRM Licensing Exception.   |
+ |                                                                    |
+ | CiviCRM is distributed in the hope that it will be useful, but     |
+ | WITHOUT ANY WARRANTY; without even the implied warranty of         |
+ | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.               |
+ | See the GNU Affero General Public License for more details.        |
+ |                                                                    |
+ | You should have received a copy of the GNU Affero General Public   |
+ | License along with this program; if not, contact CiviCRM LLC       |
+ | at info[AT]civicrm[DOT]org. If you have questions about the        |
+ | GNU Affero General Public License or the licensing of CiviCRM,     |
+ | see the CiviCRM license FAQ at http://civicrm.org/licensing        |
+ +--------------------------------------------------------------------+
+ */
+
+/**
+ * Verify that CRM_Utils_Cache_ArrayCache complies with PSR-16.
+ *
+ * @group e2e
+ */
+class E2E_Cache_ArrayCacheTest extends E2E_Cache_CacheTestCase {
+
+  public function createSimpleCache() {
+    return CRM_Utils_Cache::create([
+      'name' => 'e2e arraycache test',
+      'type' => ['ArrayCache'],
+    ]);
+  }
+
+}
-- 
2.25.1