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<?php
class ConfigHolder
{
private static $config = [];
private static $context = '';
private static $postHooks = [];
public static function setContext($id, $resolver = false)
{
$tmp = ['id' => $id, 'resolver' => $resolver];
self::$context =& $tmp;
}
/**
* @param string $key config variable name
* @param false|string|array $value false to unset, string value, or array with keys value and displayvalue
* @param int $prio priority of this value, in case the same key gets set multiple times
*/
public static function add($key, $value, $prio = 0)
{
if (!isset(self::$config[$key])) {
self::$config[$key] = [];
}
$new = [
'prio' => $prio,
'context' => &self::$context,
];
if (is_array($value)) {
$new['value'] = $value['value'];
$new['displayvalue'] = $value['displayvalue'];
} else {
$new['value'] = $value;
}
if (empty(self::$config[$key]) || self::$config[$key][0]['prio'] > $prio) {
// Existing is higher, append new one
array_push(self::$config[$key], $new);
} else {
// New one has highest prio or matches existing, put in front
array_unshift(self::$config[$key], $new);
}
}
public static function get($key)
{
if (!isset(self::$config[$key]))
return false;
return self::$config[$key][0]['value'];
}
/**
* @param callable $func
*/
public static function addPostHook($func)
{
self::$postHooks[] = array('context' => &self::$context, 'function' => $func);
}
public static function applyPostHooks()
{
foreach (self::$postHooks as $hook) {
$newContext = $hook['context'];
$newContext['post'] = true;
self::$context =& $newContext;
$hook['function']();
}
self::$postHooks = [];
}
public static function getRecursiveConfig($prettyPrint = true)
{
$ret = [];
foreach (self::$config as $key => $list) {
$last = false;
foreach ($list as $entry) {
if ($last !== false && $last['context']['id'] === '<global>'
&& $entry['context']['id'] === '<default>' && $last['value'] === $entry['value'])
continue;
$cb =& $entry['context']['resolver'];
$valueKey = 'value';
if ($prettyPrint && is_callable($cb)) {
$data = $cb($entry['context']['id']);
$name = $data['name'];
if (isset($data['locationid']) && isset($entry['displayvalue'])
&& User::hasPermission('.baseconfig.view', $data['locationid'])) {
$valueKey = 'displayvalue';
}
} else {
$name = $entry['context']['id'];
}
$ret[$key][] = ['name' => $name, 'value' => $entry[$valueKey]];
$last = $entry;
}
}
return $ret;
}
public static function outputConfig()
{
foreach (self::$config as $key => $list) {
echo str_pad('# ' . $key . ' ', 35, '#', STR_PAD_BOTH), "\n";
foreach ($list as $pos => $item) {
$ctx = $item['context']['id'];
if (isset($item['context']['post'])) {
$ctx .= '[post-hook]';
}
$ctx .= ' :: ' . $item['prio'];
if ($pos != 0 || $item['value'] === false) {
echo '# (', $ctx, ')';
if ($pos == 0) {
echo " <disabled this setting>\n";
} else {
echo " <overridden>\n";
}
} else {
echo $key, "='", self::escape($item['value']), "'\n";
echo '# (', $ctx, ") <active>\n";
}
}
}
}
/**
* Escape given string so it is a valid string in sh that can be surrounded
* by single quotes ('). This basically turns _'_ into _'"'"'_
*
* @param string $string input
* @return string escaped sh string
*/
private static function escape($string)
{
return str_replace(["'", "\n", "\r"], ["'\"'\"'", ' ', ' '], $string);
}
}
|
