]> git.mxchange.org Git - friendica.git/blobdiff - src/Core/PConfig.php
Avoid memory issue in exception
[friendica.git] / src / Core / PConfig.php
index 50fea0446914f437170d410286ec8bafd1fe5c13..df024f0f3426dfa84abc665789066a1c6427316a 100644 (file)
@@ -1,19 +1,12 @@
 <?php
 /**
- * @file src/Core/PConfig.php
- */
-namespace Friendica\Core;
-
-use Friendica\Database\DBM;
-use dba;
-
-require_once 'include/dba.php';
-
-/**
+ * User Configuration Class
+ *
  * @file include/Core/PConfig.php
- * @brief contains the class with methods for the management
- * of the user configuration
+ *
+ * @brief Contains the class with methods for user configuration
  */
+namespace Friendica\Core;
 
 /**
  * @brief Management of user configuration storage
@@ -24,13 +17,41 @@ require_once 'include/dba.php';
  */
 class PConfig
 {
-       private static $in_db;
+       /**
+        * @var Config\IPConfigAdapter
+        */
+       private static $adapter;
+
+       /**
+        * @var Config\IPConfigCache
+        */
+       private static $cache;
+
+       /**
+        * Initialize the config with only the cache
+        *
+        * @param Config\IPConfigCache $cache  The configuration cache
+        */
+       public static function init(Config\IPConfigCache $cache)
+       {
+               self::$cache  = $cache;
+       }
+
+       /**
+        * Add the adapter for DB-backend
+        *
+        * @param Config\IPConfigAdapter $adapter
+        */
+       public static function setAdapter(Config\IPConfigAdapter $adapter)
+       {
+               self::$adapter = $adapter;
+       }
 
        /**
         * @brief Loads all configuration values of a user's config family into a cached storage.
         *
-        * All configuration values of the given user are stored in global cache
-        * which is available under the global variable $a->config[$uid].
+        * All configuration values of the given user are stored with the $uid in
+        * the cache ( @see IPConfigCache )
         *
         * @param string $uid    The user_id
         * @param string $family The category of the configuration value
@@ -39,20 +60,11 @@ class PConfig
         */
        public static function load($uid, $family)
        {
-               $a = get_app();
-
-               $r = dba::select('pconfig', array('v', 'k'), array('cat' => $family, 'uid' => $uid));
-               if (DBM::is_result($r)) {
-                       while ($rr = dba::fetch($r)) {
-                               $k = $rr['k'];
-                               $a->config[$uid][$family][$k] = $rr['v'];
-                               self::$in_db[$uid][$family][$k] = true;
-                       }
-               } else if ($family != 'config') {
-                       // Negative caching
-                       $a->config[$uid][$family] = "!<unset>!";
+               if (!isset(self::$adapter)) {
+                       return;
                }
-               dba::close($r);
+
+               self::$adapter->load($uid, $family);
        }
 
        /**
@@ -60,7 +72,8 @@ class PConfig
         * ($family) and a key.
         *
         * Get a particular user's config value from the given category ($family)
-        * and the $key from a cached storage in $a->config[$uid].
+        * and the $key with the $uid from a cached storage either from the self::$adapter
+        * (@see IConfigAdapter ) or from the static::$cache (@see IConfigCache ).
         *
         * @param string  $uid           The user_id
         * @param string  $family        The category of the configuration value
@@ -72,37 +85,11 @@ class PConfig
         */
        public static function get($uid, $family, $key, $default_value = null, $refresh = false)
        {
-               $a = get_app();
-
-               if (!$refresh) {
-                       // Looking if the whole family isn't set
-                       if (isset($a->config[$uid][$family])) {
-                               if ($a->config[$uid][$family] === '!<unset>!') {
-                                       return $default_value;
-                               }
-                       }
-
-                       if (isset($a->config[$uid][$family][$key])) {
-                               if ($a->config[$uid][$family][$key] === '!<unset>!') {
-                                       return $default_value;
-                               }
-                               return $a->config[$uid][$family][$key];
-                       }
+               if (!isset(self::$adapter)) {
+                       return self::$cache->getP($uid, $family, $key, $default_value);
                }
 
-               $ret = dba::selectFirst('pconfig', ['v'], ['uid' => $uid, 'cat' => $family, 'k' => $key]);
-               if (DBM::is_result($ret)) {
-                       $val = (preg_match("|^a:[0-9]+:{.*}$|s", $ret['v']) ? unserialize($ret['v']) : $ret['v']);
-                       $a->config[$uid][$family][$key] = $val;
-                       self::$in_db[$uid][$family][$key] = true;
-
-                       return $val;
-               } else {
-                       $a->config[$uid][$family][$key] = '!<unset>!';
-                       self::$in_db[$uid][$family][$key] = false;
-
-                       return $default_value;
-               }
+               return self::$adapter->get($uid, $family, $key, $default_value, $refresh);
        }
 
        /**
@@ -111,49 +98,30 @@ class PConfig
         * Stores a config value ($value) in the category ($family) under the key ($key)
         * for the user_id $uid.
         *
-        * @note Please do not store booleans - convert to 0/1 integer values!
+        * @note  Please do not store booleans - convert to 0/1 integer values!
         *
         * @param string $uid    The user_id
         * @param string $family The category of the configuration value
         * @param string $key    The configuration key to set
-        * @param string $value  The value to store
+        * @param mixed  $value  The value to store
         *
-        * @return mixed Stored $value or false
+        * @return bool Operation success
         */
        public static function set($uid, $family, $key, $value)
        {
-               $a = get_app();
-
-               // We store our setting values in a string variable.
-               // So we have to do the conversion here so that the compare below works.
-               // The exception are array values.
-               $dbvalue = (!is_array($value) ? (string)$value : $value);
-
-               $stored = self::get($uid, $family, $key, null, true);
-
-               if (($stored === $dbvalue) && self::$in_db[$uid][$family][$key]) {
-                       return true;
+               if (!isset(self::$adapter)) {
+                       return self::$cache->setP($uid, $family, $key, $value);
                }
 
-               $a->config[$uid][$family][$key] = $dbvalue;
-
-               // manage array value
-               $dbvalue = (is_array($value) ? serialize($value) : $dbvalue);
-
-               $ret = dba::update('pconfig', array('v' => $dbvalue), array('uid' => $uid, 'cat' => $family, 'k' => $key), true);
-
-               if ($ret) {
-                       self::$in_db[$uid][$family][$key] = true;
-                       return $value;
-               }
-               return $ret;
+               return self::$adapter->set($uid, $family, $key, $value);
        }
 
        /**
         * @brief Deletes the given key from the users's configuration.
         *
-        * Removes the configured value from the stored cache in $a->config[$uid]
-        * and removes it from the database.
+        * Removes the configured value from the stored cache in self::$config
+        * (@see ConfigCache ) and removes it from the database (@see IConfigAdapter )
+        * with the given $uid.
         *
         * @param string $uid    The user_id
         * @param string $family The category of the configuration value
@@ -163,15 +131,10 @@ class PConfig
         */
        public static function delete($uid, $family, $key)
        {
-               $a = get_app();
-
-               if (x($a->config[$uid][$family], $key)) {
-                       unset($a->config[$uid][$family][$key]);
-                       unset(self::$in_db[$uid][$family][$key]);
+               if (!isset(self::$adapter)) {
+                       return self::$cache->deleteP($uid, $family, $key);
                }
 
-               $ret = dba::delete('pconfig', array('uid' => $uid, 'cat' => $family, 'k' => $key));
-
-               return $ret;
+               return self::$adapter->delete($uid, $family, $key);
        }
 }