Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
/**
*
* Arbitrary configuration storage
* Note:
* Please do not store booleans - convert to 0/1 integer values
* The get_?config() 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.
*/
// retrieve a "family" of config variables from database to cached storage
if(! function_exists('load_config')) {
function load_config($family) {
global $a;
$r = q("SELECT * FROM `config` WHERE `cat` = '%s'", dbesc($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>!";
}
}}
// get a particular config variable given the family name
// and key. Returns false if not set.
// $instore is only used by the set_config function
// to determine if the key already exists in the DB
// If a key is found in the DB but doesn't exist in
// local config cache, pull it into the cache so we don't have
// to hit the DB again for this item.
if(! function_exists('get_config')) {
function get_config($family, $key, $instore = false) {
global $a;
if(! $instore) {
// Looking if the whole family isn't set
if(isset($a->config[$family])) {
if($a->config[$family] === '!<unset>!') {
return false;
}
}
if(isset($a->config[$family][$key])) {
if($a->config[$family][$key] === '!<unset>!') {
return false;
}
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."|".$key, '!<unset>!', 600);*/
}
return false;
}}
// Store a config value ($value) in the category ($family)
// under the key ($key)
// Return the value, or false if the database update failed
if(! function_exists('set_config')) {
function set_config($family,$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) : $dbvalue);
if(get_config($family,$key,true) === false) {
$a->config[$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 $ret;
}}
if(! function_exists('load_pconfig')) {
function load_pconfig($uid,$family) {
global $a;
$r = q("SELECT * FROM `pconfig` WHERE `cat` = '%s' AND `uid` = %d",
dbesc($family),
intval($uid)
);
if(count($r)) {
foreach($r as $rr) {
$k = $rr['k'];
$a->config[$uid][$family][$k] = $rr['v'];
}
} else if ($family != 'config') {
// Negative caching
$a->config[$uid][$family] = "!<unset>!";
}
}}
if(! function_exists('get_pconfig')) {
function get_pconfig($uid,$family, $key, $instore = false) {
global $a;
if(! $instore) {
// Looking if the whole family isn't set
if(isset($a->config[$uid][$family])) {
if($a->config[$uid][$family] === '!<unset>!') {
return false;
}
}
if(isset($a->config[$uid][$family][$key])) {
if($a->config[$uid][$family][$key] === '!<unset>!') {
return false;
}
return $a->config[$uid][$family][$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($uid."|".$family."|".$key)) {
$val = apc_fetch($uid."|".$family."|".$key);
$a->config[$uid][$family][$key] = $val;
if ($val === '!<unset>!')
return false;
else
return $val;
}
elseif (function_exists("xcache_get") AND function_exists("xcache_isset"))
if (xcache_isset($uid."|".$family."|".$key)) {
$val = xcache_get($uid."|".$family."|".$key);
$a->config[$uid][$family][$key] = $val;
if ($val === '!<unset>!')
return false;
else
return $val;
}*/
$ret = q("SELECT `v` FROM `pconfig` WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
intval($uid),
dbesc($family),
dbesc($key)
);
if(count($ret)) {
$val = (preg_match("|^a:[0-9]+:{.*}$|s", $ret[0]['v'])?unserialize( $ret[0]['v']):$ret[0]['v']);
$a->config[$uid][$family][$key] = $val;
// If APC is enabled then store the data there, else try XCache
/*if (function_exists("apc_store"))
apc_store($uid."|".$family."|".$key, $val, 600);
elseif (function_exists("xcache_set"))
xcache_set($uid."|".$family."|".$key, $val, 600);*/
return $val;
}
else {
$a->config[$uid][$family][$key] = '!<unset>!';
// If APC is enabled then store the data there, else try XCache
/*if (function_exists("apc_store"))
apc_store($uid."|".$family."|".$key, '!<unset>!', 600);
elseif (function_exists("xcache_set"))
xcache_set($uid."|".$family."|".$key, '!<unset>!', 600);*/
}
return false;
}}
if(! function_exists('del_config')) {
function del_config($family,$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;
}}
// Same as above functions except these are for personal config storage and take an
// additional $uid argument.
if(! function_exists('set_pconfig')) {
function set_pconfig($uid,$family,$key,$value) {
global $a;
// manage array value
$dbvalue = (is_array($value)?serialize($value):$value);
if(get_pconfig($uid,$family,$key,true) === false) {
$a->config[$uid][$family][$key] = $value;
$ret = q("INSERT INTO `pconfig` ( `uid`, `cat`, `k`, `v` ) VALUES ( %d, '%s', '%s', '%s' ) ",
intval($uid),
dbesc($family),
dbesc($key),
dbesc($dbvalue)
);
if($ret)
return $value;
return $ret;
}
$ret = q("UPDATE `pconfig` SET `v` = '%s' WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s'",
dbesc($dbvalue),
intval($uid),
dbesc($family),
dbesc($key)
);
$a->config[$uid][$family][$key] = $value;
// If APC is enabled then store the data there, else try XCache
/*if (function_exists("apc_store"))
apc_store($uid."|".$family."|".$key, $value, 600);
elseif (function_exists("xcache_set"))
xcache_set($uid."|".$family."|".$key, $value, 600);*/
if($ret)
return $value;
return $ret;
}}
if(! function_exists('del_pconfig')) {
function del_pconfig($uid,$family,$key) {
global $a;
if(x($a->config[$uid][$family],$key))
unset($a->config[$uid][$family][$key]);
$ret = q("DELETE FROM `pconfig` WHERE `uid` = %d AND `cat` = '%s' AND `k` = '%s'",
intval($uid),
dbesc($family),
dbesc($key)
);
return $ret;
}}