mirror of
https://github.com/friendica/friendica
synced 2024-12-24 00:40:16 +00:00
236 lines
6.8 KiB
PHP
236 lines
6.8 KiB
PHP
<?php
|
|
namespace Friendica\Core;
|
|
/**
|
|
* @file include/Core/Config.php
|
|
*
|
|
* @brief Contains the class with methods for system configuration
|
|
*/
|
|
|
|
|
|
/**
|
|
* @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.
|
|
*
|
|
* 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.
|
|
*/
|
|
class Config {
|
|
|
|
/**
|
|
* @brief Loads all configuration values of family into a cached storage.
|
|
*
|
|
* All configuration values of the system are stored in global cache
|
|
* which is available under the global variable $a->config
|
|
*
|
|
* @param string $family
|
|
* The category of the configuration value
|
|
* @return void
|
|
*/
|
|
public static function load($family) {
|
|
global $a;
|
|
|
|
$r = q("SELECT `v`, `k` FROM `config` WHERE `cat` = '%s'", dbesc($family));
|
|
if(count($r)) {
|
|
foreach($r as $rr) {
|
|
$k = $rr['k'];
|
|
if ($family === 'config') {
|
|
$a->config[$k] = $rr['v'];
|
|
} else {
|
|
$a->config[$family][$k] = $rr['v'];
|
|
}
|
|
}
|
|
} else if ($family != 'config') {
|
|
// Negative caching
|
|
$a->config[$family] = "!<unset>!";
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Get a particular user's config variable given the category name
|
|
* ($family) and a key.
|
|
*
|
|
* Get a particular config value from the given category ($family)
|
|
* and the $key from a cached storage in $a->config[$uid].
|
|
* $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 $refresh optional
|
|
* If true the config is loaded from the db and not from the cache (default: false)
|
|
* @return mixed Stored value or null if it does not exist
|
|
*/
|
|
public static function get($family, $key, $default_value=null, $refresh = false) {
|
|
|
|
global $a;
|
|
|
|
if(! $instore) {
|
|
// Looking if the whole family isn't set
|
|
if(isset($a->config[$family])) {
|
|
if($a->config[$family] === '!<unset>!') {
|
|
return $default_value;
|
|
}
|
|
}
|
|
|
|
if(isset($a->config[$family][$key])) {
|
|
if($a->config[$family][$key] === '!<unset>!') {
|
|
return $default_value;
|
|
}
|
|
return $a->config[$family][$key];
|
|
}
|
|
}
|
|
|
|
// If APC is enabled then fetch the data from there, else try XCache
|
|
/*if (function_exists("apc_fetch") AND function_exists("apc_exists"))
|
|
if (apc_exists($family."|".$key)) {
|
|
$val = apc_fetch($family."|".$key);
|
|
$a->config[$family][$key] = $val;
|
|
|
|
if ($val === '!<unset>!')
|
|
return false;
|
|
else
|
|
return $val;
|
|
}
|
|
elseif (function_exists("xcache_fetch") AND function_exists("xcache_isset"))
|
|
if (xcache_isset($family."|".$key)) {
|
|
$val = xcache_fetch($family."|".$key);
|
|
$a->config[$family][$key] = $val;
|
|
|
|
if ($val === '!<unset>!')
|
|
return false;
|
|
else
|
|
return $val;
|
|
}
|
|
*/
|
|
|
|
$ret = q("SELECT `v` FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
|
|
dbesc($family),
|
|
dbesc($key)
|
|
);
|
|
if(count($ret)) {
|
|
// manage array value
|
|
$val = (preg_match("|^a:[0-9]+:{.*}$|s", $ret[0]['v'])?unserialize( $ret[0]['v']):$ret[0]['v']);
|
|
$a->config[$family][$key] = $val;
|
|
|
|
// If APC is enabled then store the data there, else try XCache
|
|
/*if (function_exists("apc_store"))
|
|
apc_store($family."|".$key, $val, 600);
|
|
elseif (function_exists("xcache_set"))
|
|
xcache_set($family."|".$key, $val, 600);*/
|
|
|
|
return $val;
|
|
}
|
|
else {
|
|
$a->config[$family][$key] = '!<unset>!';
|
|
|
|
// If APC is enabled then store the data there, else try XCache
|
|
/*if (function_exists("apc_store"))
|
|
apc_store($family."|".$key, '!<unset>!', 600);
|
|
elseif (function_exists("xcache_set"))
|
|
xcache_set($family."|".$key, '!<unset>!', 600);*/
|
|
}
|
|
return $default_value;
|
|
}
|
|
|
|
/**
|
|
* @brief Sets a configuration value for system config
|
|
*
|
|
* Stores a config value ($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!
|
|
*
|
|
* @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 $value or false if the database update failed
|
|
*/
|
|
public static function set($family,$key,$value) {
|
|
global $a;
|
|
|
|
// If $a->config[$family] has been previously set to '!<unset>!', then
|
|
// $a->config[$family][$key] will evaluate to $a->config[$family][0], and
|
|
// $a->config[$family][$key] = $value will be equivalent to
|
|
// $a->config[$family][0] = $value[0] (this causes infuriating bugs),
|
|
// so unset the family before assigning a value to a family's key
|
|
if($a->config[$family] === '!<unset>!')
|
|
unset($a->config[$family]);
|
|
|
|
// manage array value
|
|
$dbvalue = (is_array($value)?serialize($value):$value);
|
|
$dbvalue = (is_bool($dbvalue) ? intval($dbvalue) : $dbvalue);
|
|
if(is_null(self::get($family,$key,null,true))) {
|
|
$a->config[$family][$key] = $value;
|
|
$ret = q("INSERT INTO `config` ( `cat`, `k`, `v` ) VALUES ( '%s', '%s', '%s' ) ",
|
|
dbesc($family),
|
|
dbesc($key),
|
|
dbesc($dbvalue)
|
|
);
|
|
if($ret)
|
|
return $value;
|
|
return $ret;
|
|
}
|
|
|
|
$ret = q("UPDATE `config` SET `v` = '%s' WHERE `cat` = '%s' AND `k` = '%s'",
|
|
dbesc($dbvalue),
|
|
dbesc($family),
|
|
dbesc($key)
|
|
);
|
|
|
|
$a->config[$family][$key] = $value;
|
|
|
|
// If APC is enabled then store the data there, else try XCache
|
|
/*if (function_exists("apc_store"))
|
|
apc_store($family."|".$key, $value, 600);
|
|
elseif (function_exists("xcache_set"))
|
|
xcache_set($family."|".$key, $value, 600);*/
|
|
|
|
if($ret)
|
|
return $value;
|
|
return $ret;
|
|
}
|
|
|
|
/**
|
|
* @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 $key
|
|
* The configuration key to delete
|
|
* @return mixed
|
|
*/
|
|
public static function delete($family,$key) {
|
|
|
|
global $a;
|
|
if(x($a->config[$family],$key))
|
|
unset($a->config[$family][$key]);
|
|
$ret = q("DELETE FROM `config` WHERE `cat` = '%s' AND `k` = '%s'",
|
|
dbesc($family),
|
|
dbesc($key)
|
|
);
|
|
// If APC is enabled then delete the data from there, else try XCache
|
|
/*if (function_exists("apc_delete"))
|
|
apc_delete($family."|".$key);
|
|
elseif (function_exists("xcache_unset"))
|
|
xcache_unset($family."|".$key);*/
|
|
|
|
return $ret;
|
|
}
|
|
|
|
}
|