diff options
| -rw-r--r-- | include/config.php | 374 |
1 files changed, 269 insertions, 105 deletions
diff --git a/include/config.php b/include/config.php index add7b5f71..a77801717 100644 --- a/include/config.php +++ b/include/config.php @@ -1,30 +1,56 @@ -<?php /** @file */ - +<?php /** + * @file include/config.php + * @brief Arbitrary configuration storage. * - * 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. + * Arrays get stored as serialize strings. + * + * @todo 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. + * + * - <b>config</b> is used for hub specific configurations. It overrides the + * configurations from .htconfig file. The storage is of size TEXT. + * - <b>pconfig</b> is used for channel specific configurations and takes a + * <i>channel_id</i> as identifier. It stores for example which features are + * enabled per channel. The storage is of size MEDIUMTEXT. + * @code $var = get_pconfig(local_user(), 'category', 'key');@endcode + * - <b>xconfig</b> is the same as pconfig, except that it uses <i>xchan</i> as + * an identifier. This is for example for people who do not have a local account. + * The storage is of size MEDIUMTEXT. + * @code $observer = $a->get_observer_hash(); + * if ($observer) { + * $var = get_xconfig($observer, 'category', 'key'); + * }@endcode + * + * - get_config() and set_config() can also be done through the command line tool + * @ref util/config + * - get_pconfig() and set_pconfig() can also be done through the command line tool + * @ref util/pconfig and takes a channel_id as first argument. + * */ - -// retrieve a "family" of config variables from database to cached storage - +/** + * @brief Loads the hub's configuration from database to a cached storage. + * + * Retrieve a category ($family) of config variables from database to a cached + * storage in the global $a->config[$family]. + * + * @param string $family + * The category of the configuration value + */ function load_config($family) { global $a; - if(! array_key_exists($family,$a->config)) + if(! array_key_exists($family, $a->config)) $a->config[$family] = array(); - if(! array_key_exists('config_loaded',$a->config[$family])) { - + if(! array_key_exists('config_loaded', $a->config[$family])) { $r = q("SELECT * FROM config WHERE cat = '%s'", dbesc($family)); - if($r !== false) { if($r) { foreach($r as $rr) { @@ -37,24 +63,31 @@ function load_config($family) { } } -// get a particular config variable given the family name -// and key. Returns false if not set. -// $instore is only used by the set_config function -// to determine if the key already exists in the DB -// If a key is found in the DB but doesn't exist in -// local config cache, pull it into the cache so we don't have -// to hit the DB again for this item. - - +/** + * @brief Get a particular config variable given the category name ($family) + * and a key. + * + * Get a particular config variable from the given category ($family) and the + * $key from a cached storage in $a->config[$family]. If a key is found in the + * DB but does not exist in local config cache, pull it into the cache so we + * do not have to hit the DB again for this item. + * + * Returns false if not set. + * + * @param string $family + * The category of the configuration value + * @param string $key + * The configuration key to query + * @return mixed Return value or false on error or if not set + */ function get_config($family, $key) { - global $a; - if((! array_key_exists($family,$a->config)) || (! array_key_exists('config_loaded',$a->config[$family]))) + if((! array_key_exists($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])) { + 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][$key])) @@ -65,36 +98,59 @@ function get_config($family, $key) { return false; } -function get_config_from_storage($family,$key) { - $ret = q("select * from config where cat = '%s' and k = '%s' limit 1", +/** + * @brief Returns a value directly from the database configuration storage. + * + * This function queries directly the database and bypasses the chached storage + * from get_config($family, $key). + * + * @param string $family + * The category of the configuration value + * @param string $key + * The configuration key to query + * @return mixed + */ +function get_config_from_storage($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,$value) { +/** + * @brief Sets a configuration value for the hub. + * + * Stores a config value ($value) in the category ($family) under the key ($key). + * + * 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 mixed $value + * The value to store in the configuration + * @return mixed + * Return the set value, or false if the database update failed + */ +function set_config($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] = $value; - + if(get_config($family, $key) === false || (! get_config_from_storage($family, $key))) { $ret = q("INSERT INTO config ( cat, k, v ) VALUES ( '%s', '%s', '%s' ) ", dbesc($family), dbesc($key), dbesc($dbvalue) ); - if($ret) - return $value; + if($ret) { + $a->config[$family][$key] = $value; + $ret = $value; + } return $ret; } @@ -104,18 +160,32 @@ function set_config($family,$key,$value) { dbesc($key) ); - $a->config[$family][$key] = $value; - - if($ret) - return $value; + if($ret) { + $a->config[$family][$key] = $value; + $ret = $value; + } return $ret; } -function del_config($family,$key) { +/** + * @brief Deletes the given key from the hub's configuration database. + * + * Removes the configured value from the stored cache in $a->config[$family] + * and removes it from the database. + * + * @param string $family + * The category of the configuration value + * @param string $key + * The configuration key to delete + * @return mixed + */ +function del_config($family, $key) { global $a; - if(array_key_exists($family,$a->config) && array_key_exists($key,$a->config[$family])) + $ret = false; + + if(array_key_exists($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", + $ret = q("DELETE FROM config WHERE cat = '%s' AND k = '%s' LIMIT 1", dbesc($family), dbesc($key) ); @@ -123,17 +193,25 @@ function del_config($family,$key) { } -function load_pconfig($uid,$family = '') { +/** + * @brief Loads all configuration values of a channel into a cached storage. + * + * All configuration values of the given channel are stored in global cache + * which is available under the global variable $a->config[$uid]. + * + * @param string $uid + * The channel_id + * @return void|false Nothing or false if $uid is false + */ +function load_pconfig($uid) { global $a; if($uid === false) return false; - if(! array_key_exists($uid,$a->config)) + 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) ); @@ -142,59 +220,88 @@ function load_pconfig($uid,$family = '') { foreach($r as $rr) { $k = $rr['k']; $c = $rr['cat']; - if(! array_key_exists($c,$a->config[$uid])) { + 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, $instore = false) { - +/** + * @brief Get a particular channel's config variable given the category name + * ($family) and a key. + * + * Get a particular channel's config value from the given category ($family) + * and the $key from a cached storage in $a->config[$uid]. + * + * Returns false if not set. + * + * @param string $uid + * The channel_id + * @param string $family + * The category of the configuration value + * @param string $key + * The configuration key to query + * @param boolean $instore (deprecated, without function) + * @return mixed Stored value or false if it does not exist + */ +function get_pconfig($uid, $family, $key, $instore = false) { + logger('include/config.php: get_pconfig() deprecated instore param used', LOGGER_DEBUG); global $a; if($uid === false) return false; - if(! array_key_exists($uid,$a->config)) + 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][$family]))) + if((! array_key_exists($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) { - +/** + * @brief Sets a configuration value for a channel. + * + * Stores a config value ($value) in the category ($family) under the key ($key) + * for the channel_id $uid. + * + * Please do not store booleans - convert to 0/1 integer values! + * + * @param string $uid + * The channel_id + * @param string $family + * The category of the configuration value + * @param string $key + * The configuration key to query + * @return mixed Stored $value or false + */ +function set_pconfig($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)) + 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[$uid])) + if(! array_key_exists($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])) + if(! array_key_exists('transient', $a->config[$uid])) $a->config[$uid]['transient'] = array(); - if(! array_key_exists($family,$a->config[$uid]['transient'])) + if(! array_key_exists($family, $a->config[$uid]['transient'])) $a->config[$uid]['transient'][$family] = array(); $a->config[$uid][$family][$key] = $value; @@ -222,9 +329,9 @@ function set_pconfig($uid,$family,$key,$value) { // set in the life of this page. We need this to // synchronise channel clones. - if(! array_key_exists('transient',$a->config[$uid])) + if(! array_key_exists('transient', $a->config[$uid])) $a->config[$uid]['transient'] = array(); - if(! array_key_exists($family,$a->config[$uid]['transient'])) + if(! array_key_exists($family, $a->config[$uid]['transient'])) $a->config[$uid]['transient'][$family] = array(); $a->config[$uid][$family][$key] = $value; @@ -235,13 +342,27 @@ function set_pconfig($uid,$family,$key,$value) { return $ret; } - -function del_pconfig($uid,$family,$key) { - +/** + * @brief Deletes the given key from the channel's configuration. + * + * Removes the configured value from the stored cache in $a->config[$uid] + * and removes it from the database. + * + * @param string $uid + * The channel_id + * @param string $family + * The category of the configuration value + * @param string $key + * The configuration key to delete + * @return mixed + */ +function del_pconfig($uid, $family, $key) { global $a; - if(x($a->config[$uid][$family],$key)) + $ret = false; + + if(x($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", + $ret = q("DELETE FROM pconfig WHERE uid = %d AND cat = '%s' AND k = '%s' LIMIT 1", intval($uid), dbesc($family), dbesc($key) @@ -250,18 +371,25 @@ function del_pconfig($uid,$family,$key) { } - -function load_xconfig($xchan,$family = '') { +/** + * @brief Loads a full xchan's configuration into a cached storage. + * + * All configuration values of the given observer hash are stored in global + * cache which is available under the global variable $a->config[$xchan]. + * + * @param string $xchan + * The observer's hash + * @return void|false Returns false if xchan is not set + */ +function load_xconfig($xchan) { global $a; if(! $xchan) return false; - if(! array_key_exists($xchan,$a->config)) + if(! array_key_exists($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) ); @@ -270,51 +398,77 @@ function load_xconfig($xchan,$family = '') { foreach($r as $rr) { $k = $rr['k']; $c = $rr['cat']; - if(! array_key_exists($c,$a->config[$xchan])) { + 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, $key) { - +/** + * @brief Get a particular observer's config variable given the category + * name ($family) and a key. + * + * Get a particular observer's config value from the given category ($family) + * and the $key from a cached storage in $a->config[$xchan]. + * + * Returns false if not set. + * + * @param string $xchan + * The observer's hash + * @param string $family + * The category of the configuration value + * @param string $key + * The configuration key to query + * @return mixed Stored $value or false if it does not exist + */ +function get_xconfig($xchan, $family, $key) { global $a; if(! $xchan) return false; - if(! array_key_exists($xchan,$a->config)) + if(! array_key_exists($xchan, $a->config)) load_xconfig($xchan); - if((! array_key_exists($family,$a->config[$xchan])) || (! array_key_exists($key,$a->config[$xchan][$family]))) + if((! array_key_exists($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) { - +/** + * @brief Sets a configuration value for an observer. + * + * Stores a config value ($value) in the category ($family) under the key ($key) + * for the observer's $xchan hash. + * + * Please do not store booleans - convert to 0/1 integer values! + * + * @param string $xchan + * The observer's hash + * @param string $family + * The category of the configuration value + * @param string $key + * The configuration key to set + * @return mixed Stored $value or false + */ +function set_xconfig($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)) + 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[$xchan])) + if(! array_key_exists($family, $a->config[$xchan])) $a->config[$xchan][$family] = array(); $a->config[$xchan][$family][$key] = $value; @@ -341,22 +495,32 @@ function set_xconfig($xchan,$family,$key,$value) { if($ret) return $value; return $ret; - } - -function del_xconfig($xchan,$family,$key) { - +/** + * @brief Deletes the given key from the observer's config. + * + * Removes the configured value from the stored cache in $a->config[$xchan] + * and removes it from the database. + * + * @param string $xchan + * The observer's hash + * @param string $family + * The category of the configuration value + * @param string $key + * The configuration key to delete + * @return mixed + */ +function del_xconfig($xchan, $family, $key) { global $a; - if(x($a->config[$xchan][$family],$key)) + $ret = false; + + if(x($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", + $ret = q("DELETE FROM `xconfig` WHERE `xchan` = '%s' AND `cat` = '%s' AND `k` = '%s' LIMIT 1", dbesc($xchan), dbesc($family), dbesc($key) ); return $ret; } - - - |