X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FCore%2FConfig.php;h=2a719e8e41098e9a29cbe8777681c020933a3809;hb=be6b2295349d4d3e399b58f845efc5014e299275;hp=56b85dba46a5ec1a55ae4a05606e7d28b3b31cc3;hpb=2ad162f991fdd32122b029398b9ab9e8801c0462;p=friendica.git

diff --git a/src/Core/Config.php b/src/Core/Config.php
index 56b85dba46..2a719e8e41 100644
--- a/src/Core/Config.php
+++ b/src/Core/Config.php
@@ -8,23 +8,38 @@
  */
 namespace Friendica\Core;
 
-use Friendica\Database\DBM;
-use dba;
+use Friendica\App;
+use Friendica\BaseObject;
 
 /**
- * @brief Arbitrary sytem configuration storage
- * Note:
- * Please do not store booleans - convert to 0/1 integer values
- * The Config::get() functions return boolean false for keys that are unset,
- * and this could lead to subtle bugs.
+ * @brief Arbitrary system configuration storage
  *
- * There are a few places in the code (such as the admin panel) where boolean
- * configurations need to be fixed as of 10/08/2011.
+ * Note:
+ * If we ever would decide to return exactly the variable type as entered,
+ * we will have fun with the additional features. :-)
  */
-class Config {
+class Config extends BaseObject
+{
+	public static $config = [];
+
+	/**
+	 * @var \Friendica\Core\Config\IConfigAdapter
+	 */
+	private static $adapter = null;
 
-	private static $cache;
-	private static $in_db;
+	public static function init()
+	{
+		// Database isn't ready or populated yet
+		if (!self::getApp()->getMode()->has(App\Mode::DBCONFIGAVAILABLE)) {
+			return;
+		}
+
+		if (self::getConfigValue('system', 'config_adapter') == 'preload') {
+			self::$adapter = new Config\PreloadConfigAdapter();
+		} else {
+			self::$adapter = new Config\JITConfigAdapter();
+		}
+	}
 
 	/**
 	 * @brief Loads all configuration values of family into a cached storage.
@@ -32,32 +47,23 @@ class Config {
 	 * All configuration values of the system are stored in global cache
 	 * which is available under the global variable $a->config
 	 *
-	 * @param string $family
-	 *  The category of the configuration value
+	 * @param string $family The category of the configuration value
+	 *
 	 * @return void
+	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 	 */
-	public static function load($family = "config") {
-
-		// We don't preload "system" anymore.
-		// This reduces the number of database reads a lot.
-		if ($family === 'system') {
+	public static function load($family = "config")
+	{
+		// Database isn't ready or populated yet
+		if (!self::getApp()->getMode()->has(App\Mode::DBCONFIGAVAILABLE)) {
 			return;
 		}
 
-		$a = get_app();
-
-		$r = dba::select('config', array('v', 'k'), array('cat' => $family));
-		while ($rr = dba::fetch($r)) {
-			$k = $rr['k'];
-			if ($family === 'config') {
-				$a->config[$k] = $rr['v'];
-			} else {
-				$a->config[$family][$k] = $rr['v'];
-				self::$cache[$family][$k] = $rr['v'];
-				self::$in_db[$family][$k] = true;
-			}
+		if (empty(self::$adapter)) {
+			self::init();
 		}
-		dba::close($r);
+
+		self::$adapter->load($family);
 	}
 
 	/**
@@ -65,59 +71,33 @@ class Config {
 	 * ($family) and a key.
 	 *
 	 * Get a particular config value from the given category ($family)
-	 * and the $key from a cached storage in $a->config[$uid].
+	 * and the $key from a cached storage in static::config[$uid].
 	 * $instore is only used by the set_config function
 	 * to determine if the key already exists in the DB
 	 * If a key is found in the DB but doesn't exist in
 	 * local config cache, pull it into the cache so we don't have
 	 * to hit the DB again for this item.
 	 *
-	 * @param string $family
-	 *  The category of the configuration value
-	 * @param string $key
-	 *  The configuration key to query
-	 * @param mixed $default_value optional
-	 *  The value to return if key is not set (default: null)
-	 * @param boolean $refresh optional
-	 *  If true the config is loaded from the db and not from the cache (default: false)
+	 * @param string  $family        The category of the configuration value
+	 * @param string  $key           The configuration key to query
+	 * @param mixed   $default_value optional, The value to return if key is not set (default: null)
+	 * @param boolean $refresh       optional, If true the config is loaded from the db and not from the cache (default: false)
+	 *
 	 * @return mixed Stored value or null if it does not exist
+	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 	 */
-	public static function get($family, $key, $default_value = null, $refresh = false) {
-
-		$a = get_app();
-
-		if (!$refresh) {
-			// Do we have the cached value? Then return it
-			if (isset(self::$cache[$family][$key])) {
-				if (self::$cache[$family][$key] === '!<unset>!') {
-					return $default_value;
-				} else {
-					return self::$cache[$family][$key];
-				}
-			}
+	public static function get($family, $key, $default_value = null, $refresh = false)
+	{
+		// Database isn't ready or populated yet, fallback to file config
+		if (!self::getApp()->getMode()->has(App\Mode::DBCONFIGAVAILABLE)) {
+			return self::getConfigValue($family, $key, $default_value);
 		}
 
-		$ret = dba::select('config', array('v'), array('cat' => $family, 'k' => $key), array('limit' => 1));
-		if (DBM::is_result($ret)) {
-			// manage array value
-			$val = (preg_match("|^a:[0-9]+:{.*}$|s", $ret['v']) ? unserialize($ret['v']) : $ret['v']);
-
-			// Assign the value from the database to the cache
-			self::$cache[$family][$key] = $val;
-			self::$in_db[$family][$key] = true;
-			return $val;
-		} elseif (isset($a->config[$family][$key])) {
-			// Assign the value (mostly) from the .htconfig.php to the cache
-			self::$cache[$family][$key] = $a->config[$family][$key];
-			self::$in_db[$family][$key] = false;
-
-			return $a->config[$family][$key];
+		if (empty(self::$adapter)) {
+			self::init();
 		}
 
-		self::$cache[$family][$key] = '!<unset>!';
-		self::$in_db[$family][$key] = false;
-
-		return $default_value;
+		return self::$adapter->get($family, $key, $default_value, $refresh);
 	}
 
 	/**
@@ -128,70 +108,162 @@ class Config {
 	 *
 	 * Note: Please do not store booleans - convert to 0/1 integer values!
 	 *
-	 * @param string $family
-	 *  The category of the configuration value
-	 * @param string $key
-	 *  The configuration key to set
-	 * @param string $value
-	 *  The value to store
-	 * @return mixed Stored $value or false if the database update failed
+	 * @param string $family The category of the configuration value
+	 * @param string $key    The configuration key to set
+	 * @param mixed  $value  The value to store
+	 *
+	 * @return bool Operation success
+	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 	 */
-	public static function set($family, $key, $value) {
-		$a = get_app();
+	public static function set($family, $key, $value)
+	{
+		// Database isn't ready or populated yet
+		if (!self::getApp()->getMode()->has(App\Mode::DBCONFIGAVAILABLE)) {
+			return false;
+		}
 
-		// 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 : $value);
+		if (empty(self::$adapter)) {
+			self::init();
+		}
 
-		$stored = self::get($family, $key, null, true);
+		return self::$adapter->set($family, $key, $value);
+	}
 
-		if (($stored === $dbvalue) && self::$in_db[$family][$key]) {
-			return true;
+	/**
+	 * @brief Deletes the given key from the system configuration.
+	 *
+	 * Removes the configured value from the stored cache in $a->config
+	 * and removes it from the database.
+	 *
+	 * @param string $family The category of the configuration value
+	 * @param string $key    The configuration key to delete
+	 *
+	 * @return mixed
+	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+	 */
+	public static function delete($family, $key)
+	{
+		// Database isn't ready or populated yet
+		if (!self::getApp()->getMode()->has(App\Mode::DBCONFIGAVAILABLE)) {
+			return false;
 		}
 
-		if ($family === 'config') {
-			$a->config[$key] = $dbvalue;
-		} elseif ($family != 'system') {
-			$a->config[$family][$key] = $dbvalue;
+		if (empty(self::$adapter)) {
+			self::init();
 		}
 
-		// Assign the just added value to the cache
-		self::$cache[$family][$key] = $dbvalue;
+		return self::$adapter->delete($family, $key);
+	}
 
-		// manage array value
-		$dbvalue = (is_array($value) ? serialize($value) : $dbvalue);
+	/**
+	 * Tries to load the specified configuration array into the App->config array.
+	 * Doesn't overwrite previously set values by default to prevent default config files to supersede DB Config.
+	 *
+	 * @param array $config
+	 * @param bool  $overwrite Force value overwrite if the config key already exists
+	 */
+	public function loadConfigArray(array $config, $overwrite = false)
+	{
+		foreach ($config as $category => $values) {
+			foreach ($values as $key => $value) {
+				if ($overwrite) {
+					self::setConfigValue($category, $key, $value);
+				} else {
+					self::setDefaultConfigValue($category, $key, $value);
+				}
+			}
+		}
+	}
 
-		dba::update('config', array('v' => $dbvalue), array('cat' => $family, 'k' => $key), true);
+	/**
+	 * @param string $cat     Config category
+	 * @param string $k       Config key
+	 * @param mixed  $default Default value if it isn't set
+	 *
+	 * @return string Returns the value of the Config entry
+	 */
+	public static function getConfigValue($cat, $k = null, $default = null)
+	{
+		$return = $default;
 
-		if ($ret) {
-			self::$in_db[$family][$key] = true;
-			return $value;
+		if ($cat === 'config') {
+			if (isset(self::$config[$k])) {
+				$return = self::$config[$k];
+			}
+		} else {
+			if (isset(self::$config[$cat][$k])) {
+				$return = self::$config[$cat][$k];
+			} elseif ($k == null && isset(self::$config[$cat])) {
+				$return = self::$config[$cat];
+			}
 		}
-		return $ret;
+
+		return $return;
 	}
 
 	/**
-	 * @brief Deletes the given key from the system configuration.
+	 * Sets a default value in the config cache. Ignores already existing keys.
 	 *
-	 * Removes the configured value from the stored cache in $a->config
-	 * and removes it from the database.
+	 * @param string $cat Config category
+	 * @param string $k   Config key
+	 * @param mixed  $v   Default value to set
+	 */
+	private static function setDefaultConfigValue($cat, $k, $v)
+	{
+		if (!isset(self::$config[$cat][$k])) {
+			self::setConfigValue($cat, $k, $v);
+		}
+	}
+
+	/**
+	 * Sets a value in the config cache. Accepts raw output from the config table
 	 *
-	 * @param string $family
-	 *  The category of the configuration value
-	 * @param string $key
-	 *  The configuration key to delete
-	 * @return mixed
+	 * @param string $cat Config category
+	 * @param string $k   Config key
+	 * @param mixed  $v   Value to set
 	 */
-	public static function delete($family, $key) {
+	public static function setConfigValue($cat, $k, $v)
+	{
+		// Only arrays are serialized in database, so we have to unserialize sparingly
+		$value = is_string($v) && preg_match("|^a:[0-9]+:{.*}$|s", $v) ? unserialize($v) : $v;
 
-		if (isset(self::$cache[$family][$key])) {
-			unset(self::$cache[$family][$key]);
-			unset(self::$in_db[$family][$key]);
+		if ($cat === 'config') {
+			self::$config[$k] = $value;
+		} else {
+			if (!isset(self::$config[$cat])) {
+				self::$config[$cat] = [];
+			}
+
+			self::$config[$cat][$k] = $value;
 		}
+	}
 
-		$ret = dba::delete('config', array('cat' => $family, 'k' => $key));
+	/**
+	 * Deletes a value from the config cache
+	 *
+	 * @param string $cat Config category
+	 * @param string $k   Config key
+	 */
+	public static function deleteConfigValue($cat, $k)
+	{
+		if ($cat === 'config') {
+			if (isset(self::$config[$k])) {
+				unset(self::$config[$k]);
+			}
+		} else {
+			if (isset(self::$config[$cat][$k])) {
+				unset(self::$config[$cat][$k]);
+			}
+		}
+	}
 
-		return $ret;
+	/**
+	 * Returns the whole configuration
+	 *
+	 * @return array The configuration
+	 */
+	public static function getAll()
+	{
+		return self::$config;
 	}
 }