Remove old cache file

Now that all references are updated, remove old cache.php

diff --git a/include/cache.php b/include/cache.php
deleted file mode 100644 (file)
index 6bdb3e2..0000000
--- 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());
-               }
-       }
-}