From 25a7610a9328e74a3eff9e61b6d947a30e0f2861 Mon Sep 17 00:00:00 2001
From: Skylar Ittner <skylar@netsyms.com>
Date: Tue, 25 Apr 2023 17:50:39 -0600
Subject: [PATCH] Add libs

---
 index.php                  | 21 +++------
 lib/Env.lib.php            | 20 ++++++++
 lib/MemcacheDriver.lib.php | 93 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 120 insertions(+), 14 deletions(-)
 create mode 100644 lib/Env.lib.php
 create mode 100644 lib/MemcacheDriver.lib.php

diff --git a/index.php b/index.php
index 27eee8d..a91f19a 100644
--- a/index.php
+++ b/index.php
@@ -18,26 +18,13 @@ $SETTINGS = [
         "charset" => "utf8"
     ],
     "memcached" => [
-        "enable" => false,
+        "enable" => true,
         "server" => "127.0.0.1",
         "port" => 11211,
         "prefix" => "aa"
     ]
 ];
 
-function env(string $key, $defaultvalue = null) {
-    global $SETTINGS;
-    if (!empty($SETTINGS[$key])) {
-        return $SETTINGS[$key];
-    }
-    return $defaultvalue;
-}
-
-function envhas(string $key): bool {
-    global $SETTINGS;
-    return !empty($SETTINGS[$key]);
-}
-
 ob_start(); // allow sending headers after content
 // Unicode, solves almost all stupid encoding problems
 header('Content-Type: application/json; charset=utf-8');
@@ -48,6 +35,12 @@ header("Access-Control-Allow-Origin: *");
 // Composer
 require __DIR__ . '/vendor/autoload.php';
 
+$libs = glob(__DIR__ . "/lib/*.lib.php");
+foreach ($libs as $lib) {
+    require_once $lib;
+}
+unset($libs, $lib);
+
 use Medoo\Medoo;
 
 $database;
diff --git a/lib/Env.lib.php b/lib/Env.lib.php
new file mode 100644
index 0000000..d922c18
--- /dev/null
+++ b/lib/Env.lib.php
@@ -0,0 +1,20 @@
+<?php
+
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+function env(string $key, $defaultvalue = null) {
+    global $SETTINGS;
+    if (!empty($SETTINGS[$key])) {
+        return $SETTINGS[$key];
+    }
+    return $defaultvalue;
+}
+
+function envhas(string $key): bool {
+    global $SETTINGS;
+    return !empty($SETTINGS[$key]);
+}
\ No newline at end of file
diff --git a/lib/MemcacheDriver.lib.php b/lib/MemcacheDriver.lib.php
new file mode 100644
index 0000000..e7108d0
--- /dev/null
+++ b/lib/MemcacheDriver.lib.php
@@ -0,0 +1,93 @@
+<?php
+
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+class MemcacheDriver {
+
+    public $memcache;
+    private bool $enabled;
+    private string $server;
+    private string $prefix;
+    private int $port;
+    private $dummycache;
+
+    /**
+     *
+     * @param bool $enabled true to enable memcached, false to use non-persistent dummy cache
+     * @param string $server
+     * @param int $port
+     * @param string $prefix Prefix to add to keys to avoid conflicts with other apps on same server
+     */
+    function __construct(bool $enabled = false, string $server = "127.0.0.1", int $port = 11211, string $prefix = "") {
+        $this->enabled = $enabled;
+        $this->server = $server;
+        $this->port = $port;
+        $this->prefix = $prefix;
+        if ($enabled) {
+            $this->memcache = new Memcached();
+            $this->memcache->addServer($this->server, $this->port);
+        }
+        $this->dummycache = [];
+    }
+
+    /**
+     * Check if the memcache is actually setup or if it's a dummy shim.
+     * @return bool true if memcache is enabled, false if only dummy cache enabled
+     */
+    function enabled(): bool {
+        return $this->enabled;
+    }
+
+    /**
+     * Get the value for key.
+     * @param string $key
+     * @return value or false if not found
+     */
+    function get(string $key) {
+        if ($this->enabled) {
+            $key = $this->prefix . $key;
+            return $this->memcache->get($key);
+        } else {
+            if (!empty($this->dummycache[$key])) {
+                return $this->dummycache[$key];
+            }
+            return false;
+        }
+    }
+
+    /**
+     * Set the value of $key to $val
+     * @param string $key
+     * @param type $val
+     * @param int $expires number of seconds (max 60*60*24*30) or UNIX timestamp for cache expiry
+     * Default expiration of 0 means no expiration
+     */
+    function set(string $key, $val, int $expires = 0) {
+        if ($expires < 0) {
+            $expires = 0;
+        }
+        if ($this->enabled) {
+            $key = $this->prefix . $key;
+            $this->memcache->set($key, $val, $expires);
+        } else {
+            $this->dummycache[$key] = $val;
+        }
+    }
+
+    /**
+     * Get the cache key prefix string
+     * @return string
+     */
+    function getPrefix(): string {
+        return $this->prefix;
+    }
+
+    function getMemcached() {
+        return $this->memcache;
+    }
+
+}