*/
namespace Friendica\Core;
-use Friendica\Database\DBM;
-use dba;
+use Friendica\App;
+use Friendica\BaseObject;
/**
- * @brief Arbitrary sytem configuration storage
+ * @brief Arbitrary system configuration storage
*
* Note:
* If we ever would decide to return exactly the variable type as entered,
* we will have fun with the additional features. :-)
- *
- * The config class always returns strings but in the default features
- * we use a "false" to determine if the config value isn't set.
- *
*/
-class Config
+class Config extends BaseObject
{
- private static $cache;
- private static $in_db;
+ public static $config = [];
+
+ /**
+ * @var \Friendica\Core\Config\IConfigAdapter
+ */
+ private static $adapter = null;
+
+ public static function init()
+ {
+ // Database isn't ready or populated yet
+ if (!self::getApp()->getMode()->has(App\Mode::DBCONFIGAVAILABLE)) {
+ return;
+ }
+
+ if (self::getConfigValue('system', 'config_adapter') == 'preload') {
+ self::$adapter = new Config\PreloadConfigAdapter();
+ } else {
+ self::$adapter = new Config\JITConfigAdapter();
+ }
+ }
/**
* @brief Loads all configuration values of family into a cached storage.
* @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') {
+ // 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);
}
/**
* ($family) and a key.
*
* Get a particular config value from the given category ($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
* @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];
- }
- }
+ // 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);
}
/**
*
* @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 $value or false if the database update failed
+ * @return bool Operation success
+ * @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
public static function set($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);
-
- $stored = self::get($family, $key, null, true);
-
- if (($stored === $dbvalue) && self::$in_db[$family][$key]) {
- return true;
+ // 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;
-
- // manage array value
- $dbvalue = (is_array($value) ? serialize($value) : $dbvalue);
-
- dba::update('config', array('v' => $dbvalue), array('cat' => $family, 'k' => $key), true);
-
- if ($ret) {
- self::$in_db[$family][$key] = true;
- return $value;
- }
- return $ret;
+ return self::$adapter->set($family, $key, $value);
}
/**
* @param string $key The configuration key to delete
*
* @return mixed
+ * @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
public static function delete($family, $key)
{
- if (isset(self::$cache[$family][$key])) {
- unset(self::$cache[$family][$key]);
- unset(self::$in_db[$family][$key]);
+ // Database isn't ready or populated yet
+ if (!self::getApp()->getMode()->has(App\Mode::DBCONFIGAVAILABLE)) {
+ return false;
+ }
+
+ if (empty(self::$adapter)) {
+ self::init();
+ }
+
+ return self::$adapter->delete($family, $key);
+ }
+
+ /**
+ * 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);
+ }
+ }
+ }
+ }
+
+ /**
+ * @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 = $default;
+
+ if ($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 $return;
+ }
+
+ /**
+ * Sets a default value in the config cache. Ignores already existing keys.
+ *
+ * @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 $cat Config category
+ * @param string $k Config key
+ * @param mixed $v Value to set
+ */
+ public static function setConfigValue($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) : $v;
+
+ if ($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;
}
}
projects / friendica.git / blobdiff