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<?php /** @file */
/**
*
* 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
function load_config($family) {
global $a;
if(! array_key_exists($family,$a->config))
$a->config[$family] = array();
if(! array_key_exists('config_loaded',$a->config[$family])) {
$r = q("SELECT * FROM config WHERE cat = '%s'", dbesc($family));
// This is often one of the earliest database calls in the life of the page.
// If the DB was successfully opened, but we can't read from it,
// we must assume catastrophic failure of the DB. Report the system down.
// if($r === false) {
// system_unavailable();
// }
if($r !== false) {
if($r) {
foreach($r as $rr) {
$k = $rr['k'];
$a->config[$family][$k] = $rr['v'];
}
}
$a->config[$family]['config_loaded'] = true;
}
}
}
// get a particular config variable given the family name
// and key. Returns false if not set.
// $instore is only used by the set_config function
// to determine if the key already exists in the DB
// If a key is found in the DB but doesn't exist in
// local config cache, pull it into the cache so we don't have
// to hit the DB again for this item.
function get_config($family, $key) {
global $a;
if((! array_key_exists($family,$a->config)) || (! array_key_exists('config_loaded',$a->config[$family])))
load_config($family);
if(array_key_exists('config_loaded',$a->config[$family])) {
if(! array_key_exists($key,$a->config[$family])) {
return false;
}
return ((! is_array($a->config[$family][$key])) && (preg_match('|^a:[0-9]+:{.*}$|s', $a->config[$family][$key]))
? unserialize($a->config[$family][$key])
: $a->config[$family][$key]
);
}
return false;
}
function get_config_from_storage($family,$key) {
$ret = q("select * from config where cat = '%s' and k = '%s' limit 1",
dbesc($family),
dbesc($key)
);
return $ret;
}
// Store a config value ($value) in the category ($family)
// under the key ($key)
// Return the value, or false if the database update failed
function set_config($family,$key,$value) {
global $a;
// manage array value
$dbvalue = ((is_array($value)) ? serialize($value) : $value);
$dbvalue = ((is_bool($dbvalue)) ? intval($dbvalue) : $dbvalue);
if(get_config($family,$key) === false || (! get_config_from_storage($family,$key))) {
$a->config[$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;
}
$ret = q("UPDATE config SET v = '%s' WHERE cat = '%s' AND k = '%s' LIMIT 1",
dbesc($dbvalue),
dbesc($family),
dbesc($key)
);
$a->config[$family][$key] = $value;
if($ret)
return $value;
return $ret;
}
function del_config($family,$key) {
global $a;
if(array_key_exists($family,$a->config) && array_key_exists($key,$a->config[$family]))
unset($a->config[$family][$key]);
$ret = q("DELETE FROM config WHERE cat = '%s' AND k = '%s' LIMIT 1",
dbesc($family),
dbesc($key)
);
return $ret;
}
function load_pconfig($uid,$family = '') {
global $a;
if($uid === false)
return false;
if(! array_key_exists($uid,$a->config))
$a->config[$uid] = array();
// family is no longer used - load entire user config
$r = q("SELECT * FROM `pconfig` WHERE `uid` = %d",
intval($uid)
);
if($r) {
foreach($r as $rr) {
$k = $rr['k'];
$c = $rr['cat'];
if(! array_key_exists($c,$a->config[$uid])) {
$a->config[$uid][$c] = array();
$a->config[$uid][$c]['config_loaded'] = true;
}
$a->config[$uid][$c][$k] = $rr['v'];
}
}
}
function get_pconfig($uid,$family, $key, $instore = false) {
global $a;
if($uid === false)
return false;
if(! array_key_exists($uid,$a->config))
load_pconfig($uid);
if((! array_key_exists($family,$a->config[$uid])) || (! array_key_exists($key,$a->config[$uid][$family])))
return false;
return ((! is_array($a->config[$uid][$family][$key])) && (preg_match('|^a:[0-9]+:{.*}$|s', $a->config[$uid][$family][$key]))
? unserialize($a->config[$uid][$family][$key])
: $a->config[$uid][$family][$key]
);
}
function set_pconfig($uid,$family,$key,$value) {
global $a;
// manage array value
$dbvalue = ((is_array($value)) ? serialize($value) : $value);
$dbvalue = ((is_bool($dbvalue)) ? intval($dbvalue) : $dbvalue);
if(get_pconfig($uid,$family,$key) === false) {
if(! array_key_exists($uid,$a->config))
$a->config[$uid] = array();
if(! array_key_exists($family,$a->config[$uid]))
$a->config[$uid][$family] = array();
// keep a separate copy for all variables which were
// set in the life of this page. We need this to
// synchronise channel clones.
if(! array_key_exists('transient',$a->config[$uid]))
$a->config[$uid]['transient'] = array();
if(! array_key_exists($family,$a->config[$uid]['transient']))
$a->config[$uid]['transient'][$family] = array();
$a->config[$uid][$family][$key] = $value;
$a->config[$uid]['transient'][$family][$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;
}
$ret = q("UPDATE pconfig SET v = '%s' WHERE uid = %d and cat = '%s' AND k = '%s' LIMIT 1",
dbesc($dbvalue),
intval($uid),
dbesc($family),
dbesc($key)
);
// keep a separate copy for all variables which were
// set in the life of this page. We need this to
// synchronise channel clones.
if(! array_key_exists('transient',$a->config[$uid]))
$a->config[$uid]['transient'] = array();
if(! array_key_exists($family,$a->config[$uid]['transient']))
$a->config[$uid]['transient'][$family] = array();
$a->config[$uid][$family][$key] = $value;
$a->config[$uid]['transient'][$family][$key] = $value;
if($ret)
return $value;
return $ret;
}
function del_pconfig($uid,$family,$key) {
global $a;
if(x($a->config[$uid][$family],$key))
unset($a->config[$uid][$family][$key]);
$ret = q("DELETE FROM pconfig WHERE uid = %d AND cat = '%s' AND k = '%s' LIMIT 1",
intval($uid),
dbesc($family),
dbesc($key)
);
return $ret;
}
function load_xconfig($xchan,$family = '') {
global $a;
if(! $xchan)
return false;
if(! array_key_exists($xchan,$a->config))
$a->config[$xchan] = array();
// family is no longer used. Entire config is loaded
$r = q("SELECT * FROM `xconfig` WHERE `xchan` = '%s'",
dbesc($xchan)
);
if($r) {
foreach($r as $rr) {
$k = $rr['k'];
$c = $rr['cat'];
if(! array_key_exists($c,$a->config[$xchan])) {
$a->config[$xchan][$c] = array();
$a->config[$xchan][$c]['config_loaded'] = true;
}
$a->config[$xchan][$c][$k] = $rr['v'];
}
}
}
function get_xconfig($xchan,$family, $key) {
global $a;
if(! $xchan)
return false;
if(! array_key_exists($xchan,$a->config))
load_xconfig($xchan);
if((! array_key_exists($family,$a->config[$xchan])) || (! array_key_exists($key,$a->config[$xchan][$family])))
return false;
return ((! is_array($a->config[$xchan][$family][$key])) && (preg_match('|^a:[0-9]+:{.*}$|s', $a->config[$xchan][$family][$key]))
? unserialize($a->config[$xchan][$family][$key])
: $a->config[$xchan][$family][$key]
);
}
function set_xconfig($xchan,$family,$key,$value) {
global $a;
// manage array value
$dbvalue = ((is_array($value)) ? serialize($value) : $value);
$dbvalue = ((is_bool($dbvalue)) ? intval($dbvalue) : $dbvalue);
if(get_xconfig($xchan,$family,$key) === false) {
if(! array_key_exists($xchan,$a->config))
$a->config[$xchan] = array();
if(! array_key_exists($family,$a->config[$xchan]))
$a->config[$xchan][$family] = array();
$a->config[$xchan][$family][$key] = $value;
$ret = q("INSERT INTO xconfig ( xchan, cat, k, v ) VALUES ( '%s', '%s', '%s', '%s' ) ",
dbesc($xchan),
dbesc($family),
dbesc($key),
dbesc($dbvalue)
);
if($ret)
return $value;
return $ret;
}
$ret = q("UPDATE xconfig SET v = '%s' WHERE xchan = '%s' and cat = '%s' AND k = '%s' LIMIT 1",
dbesc($dbvalue),
dbesc($xchan),
dbesc($family),
dbesc($key)
);
$a->config[$xchan][$family][$key] = $value;
if($ret)
return $value;
return $ret;
}
function del_xconfig($xchan,$family,$key) {
global $a;
if(x($a->config[$xchan][$family],$key))
unset($a->config[$xchan][$family][$key]);
$ret = q("DELETE FROM `xconfig` WHERE `xchan` = '%s' AND `cat` = '%s' AND `k` = '%s' LIMIT 1",
dbesc($xchan),
dbesc($family),
dbesc($key)
);
return $ret;
}
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