From 1565061454a1d49aab51e1fa979c0c633394d262 Mon Sep 17 00:00:00 2001
From: Adam Magness <adam.magness@gmail.com>
Date: Thu, 9 Nov 2017 11:49:27 -0500
Subject: [PATCH] Remove old cache file
Now that all references are updated, remove old cache.php
---
include/cache.php | 211 ----------------------------------------------
1 file changed, 211 deletions(-)
delete mode 100644 include/cache.php
diff --git a/include/cache.php b/include/cache.php
deleted file mode 100644
index 6bdb3e2f66..0000000000
--- a/include/cache.php
+++ /dev/null
@@ -1,211 +0,0 @@
-<?php
-/**
- * @file include/cache.php
- *
- * @brief Class for storing data for a short time
- */
-
-use Friendica\Core\Config;
-use Friendica\Core\PConfig;
-use Friendica\Database\DBM;
-
-class Cache {
- /**
- * @brief Check for memcache and open a connection if configured
- *
- * @return object|boolean The memcache object - or "false" if not successful
- */
- public static function memcache() {
- if (!function_exists('memcache_connect')) {
- return false;
- }
-
- if (!Config::get('system', 'memcache')) {
- return false;
- }
-
- $memcache_host = Config::get('system', 'memcache_host', '127.0.0.1');
- $memcache_port = Config::get('system', 'memcache_port', 11211);
-
- $memcache = new Memcache;
-
- if (!$memcache->connect($memcache_host, $memcache_port)) {
- return false;
- }
-
- return $memcache;
- }
-
- /**
- * @brief Return the duration for a given cache level
- *
- * @param integer $level Cache level
- *
- * @return integer The cache duration in seconds
- */
- private static function duration($level) {
- switch($level) {
- case CACHE_MONTH;
- $seconds = 2592000;
- break;
- case CACHE_WEEK;
- $seconds = 604800;
- break;
- case CACHE_DAY;
- $seconds = 86400;
- break;
- case CACHE_HOUR;
- $seconds = 3600;
- break;
- case CACHE_HALF_HOUR;
- $seconds = 1800;
- break;
- case CACHE_QUARTER_HOUR;
- $seconds = 900;
- break;
- case CACHE_FIVE_MINUTES;
- $seconds = 300;
- break;
- case CACHE_MINUTE;
- $seconds = 60;
- break;
- }
- return $seconds;
- }
-
- /**
- * @brief Fetch cached data according to the key
- *
- * @param string $key The key to the cached data
- *
- * @return mixed Cached $value or "null" if not found
- */
- public static function get($key) {
-
- $memcache = self::memcache();
- if (is_object($memcache)) {
- // We fetch with the hostname as key to avoid problems with other applications
- $cached = $memcache->get(get_app()->get_hostname().":".$key);
- $value = @unserialize($cached);
-
- // Only return a value if the serialized value is valid.
- // We also check if the db entry is a serialized
- // boolean 'false' value (which we want to return).
- if ($cached === serialize(false) || $value !== false) {
- return $value;
- }
-
- return null;
- }
-
- // Frequently clear cache
- self::clear($duration);
-
- $r = q("SELECT `v` FROM `cache` WHERE `k`='%s' LIMIT 1",
- dbesc($key)
- );
-
- if (DBM::is_result($r)) {
- $cached = $r[0]['v'];
- $value = @unserialize($cached);
-
- // Only return a value if the serialized value is valid.
- // We also check if the db entry is a serialized
- // boolean 'false' value (which we want to return).
- if ($cached === serialize(false) || $value !== false) {
- return $value;
- }
- }
-
- return null;
- }
-
- /**
- * @brief Put data in the cache according to the key
- *
- * The input $value can have multiple formats.
- *
- * @param string $key The key to the cached data
- * @param mixed $valie The value that is about to be stored
- * @param integer $duration The cache lifespan
- */
- public static function set($key, $value, $duration = CACHE_MONTH) {
-
- // Do we have an installed memcache? Use it instead.
- $memcache = self::memcache();
- if (is_object($memcache)) {
- // We store with the hostname as key to avoid problems with other applications
- $memcache->set(get_app()->get_hostname().":".$key, serialize($value), MEMCACHE_COMPRESSED, self::duration($duration));
- return;
- }
-
- /// @todo store the cache data in the same way like the config data
- q("REPLACE INTO `cache` (`k`,`v`,`expire_mode`,`updated`) VALUES ('%s','%s',%d,'%s')",
- dbesc($key),
- dbesc(serialize($value)),
- intval($duration),
- dbesc(datetime_convert()));
- }
-
- /**
- * @brief Remove outdated data from the cache
- *
- * @param integer $maxlevel The maximum cache level that is to be cleared
- */
- public static function clear($max_level = CACHE_MONTH) {
-
- // Clear long lasting cache entries only once a day
- if (Config::get("system", "cache_cleared_day") < time() - self::duration(CACHE_DAY)) {
- if ($max_level == CACHE_MONTH) {
- q("DELETE FROM `cache` WHERE `updated` < '%s' AND `expire_mode` = %d",
- dbesc(datetime_convert('UTC','UTC',"now - 30 days")), intval(CACHE_MONTH));
- }
-
- if ($max_level <= CACHE_WEEK) {
- q("DELETE FROM `cache` WHERE `updated` < '%s' AND `expire_mode` = %d",
- dbesc(datetime_convert('UTC','UTC',"now - 7 days")), intval(CACHE_WEEK));
- }
-
- if ($max_level <= CACHE_DAY) {
- q("DELETE FROM `cache` WHERE `updated` < '%s' AND `expire_mode` = %d",
- dbesc(datetime_convert('UTC','UTC',"now - 1 days")), intval(CACHE_DAY));
- }
- Config::set("system", "cache_cleared_day", time());
- }
-
- if (($max_level <= CACHE_HOUR) && (Config::get("system", "cache_cleared_hour")) < time() - self::duration(CACHE_HOUR)) {
- q("DELETE FROM `cache` WHERE `updated` < '%s' AND `expire_mode` = %d",
- dbesc(datetime_convert('UTC','UTC',"now - 1 hours")), intval(CACHE_HOUR));
-
- Config::set("system", "cache_cleared_hour", time());
- }
-
- if (($max_level <= CACHE_HALF_HOUR) && (Config::get("system", "cache_cleared_half_hour")) < time() - self::duration(CACHE_HALF_HOUR)) {
- q("DELETE FROM `cache` WHERE `updated` < '%s' AND `expire_mode` = %d",
- dbesc(datetime_convert('UTC','UTC',"now - 30 minutes")), intval(CACHE_HALF_HOUR));
-
- Config::set("system", "cache_cleared_half_hour", time());
- }
-
- if (($max_level <= CACHE_QUARTER_HOUR) && (Config::get("system", "cache_cleared_quarter_hour")) < time() - self::duration(CACHE_QUARTER_HOUR)) {
- q("DELETE FROM `cache` WHERE `updated` < '%s' AND `expire_mode` = %d",
- dbesc(datetime_convert('UTC','UTC',"now - 15 minutes")), intval(CACHE_QUARTER_HOUR));
-
- Config::set("system", "cache_cleared_quarter_hour", time());
- }
-
- if (($max_level <= CACHE_FIVE_MINUTES) && (Config::get("system", "cache_cleared_five_minute")) < time() - self::duration(CACHE_FIVE_MINUTES)) {
- q("DELETE FROM `cache` WHERE `updated` < '%s' AND `expire_mode` = %d",
- dbesc(datetime_convert('UTC','UTC',"now - 5 minutes")), intval(CACHE_FIVE_MINUTES));
-
- Config::set("system", "cache_cleared_five_minute", time());
- }
-
- if (($max_level <= CACHE_MINUTE) && (Config::get("system", "cache_cleared_minute")) < time() - self::duration(CACHE_MINUTE)) {
- q("DELETE FROM `cache` WHERE `updated` < '%s' AND `expire_mode` = %d",
- dbesc(datetime_convert('UTC','UTC',"now - 1 minutes")), intval(CACHE_MINUTE));
-
- Config::set("system", "cache_cleared_minute", time());
- }
- }
-}
--
2.39.5