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diff --git a/lib/Kolab/Config.php b/lib/Kolab/Config.php
index 2aa49bb..c83e146 100644
--- a/lib/Kolab/Config.php
+++ b/lib/Kolab/Config.php
@@ -1,378 +1,378 @@
<?php
/**
* Model class to give access to service configuration
*
* This file is part of the Kolab PHP Utilities library
*
* @author Thomas Bruederli <bruederli@kolabsys.com>
*
* Copyright (C) 2013, Kolab Systems AG <contact@kolabsys.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
namespace Kolab;
/**
* Wrapper class for service configuration
*/
class Config
{
const STRING = 0;
const BOOL = 1;
const INT = 2;
const FLOAT = 3;
const ARR = 4;
const HASH = 5;
const EMAIL = 6;
protected static $instance;
protected $env = '';
protected $basedir = '../config';
protected $data = array();
protected $valid = false;
/**
* Singelton getter
*
* @param string Path to load config from
*/
public static function get_instance($env = '', $dir = null)
{
if (!isset(self::$instance)) {
self::$instance = new Config($env);
if ($dir) self::$instance->basedir = $dir;
}
if (!self::$instance->valid) {
self::$instance->load('config.ini');
}
return self::$instance;
}
/**
* Default constructor
*/
function __construct($env = '')
{
$this->env = $env;
}
/**
* Load config from the given .ini file
*/
protected function load($file, $use_env = true)
{
// check for relative path
if (!is_readable($file) && is_readable($this->basedir . '/' . $file)) {
$file = $this->basedir . '/' . $file;
}
$inifile = $this->resolve_path($file, $use_env);
if ($raw = self::parse_ini_file($inifile, true)) {
foreach ($raw as $section => $values) {
$sub = null;
if (preg_match('/^(\w+)\s+"?(.+)"?$/i', $section, $m)) {
$section = $m[1];
$sub = trim($m[2], '"');
}
if (!empty($sub) && !empty($values)) {
$config[$section][$sub] = $values;
}
else if (!empty($values) && is_array($values)) {
$config[$section] = $values;
}
}
$this->register($config);
$this->valid = !empty($this->data);
}
else {
trigger_error("Failed to parse configuration from $inifile", E_USER_ERROR);
}
}
/**
* Helper method to resolve the absolute path to the given config file.
* This also takes the 'env' property into account.
*/
protected function resolve_path($file, $use_env)
{
- if ($file[0] != '/') {
+ if ($file[0] != '/' && $this->basedir[0] == '/') {
$file = realpath($this->basedir . '/' . $file);
}
// check if <file>-env.ini exists
if ($file && $use_env && !empty($this->env)) {
$envfile = preg_replace('/\.(ini|conf)$/', '-' . $this->env . '.\\1', $file);
if (is_file($envfile))
return $envfile;
}
return $file;
}
/**
* Replacement for PHP's parse_ini_file()
*/
protected static function parse_ini_file($filename)
{
$raw = array();
foreach (file($filename) as $_line) {
if ($_line[0] == ';') // skip comments
continue;
// chop off comments at the end of a line
$_line = preg_replace('/;[^\'"]*$/', '', $_line);
if (preg_match('/^\[([a-z0-9-_\.]+[^\]]*)\]/', $_line, $matches)) {
$_cur_section = $matches[1];
$raw[$_cur_section] = array();
unset($_cur_key);
}
if (preg_match('/^([a-z0-9\.-_]+)\s*=\s*(.*)/', $_line, $matches)) {
if (isset($_cur_section) && !empty($_cur_section)) {
$_cur_key = $matches[1];
$value = isset($matches[2]) ? trim($matches[2], ' "') : '';
if (preg_match('/^(true|yes|on)$/', $matches[2])) // convert boolean values right away
$value = true;
$raw[$_cur_section][$matches[1]] = $value;
}
}
else if (preg_match('/^\s+(.*)$/', $_line, $matches)) {
if (isset($_cur_key) && !empty($_cur_key)) {
$raw[$_cur_section][$_cur_key] .= $matches[1];
}
}
}
return $raw;
}
/**
* Dump the hierarchical structure of config options into a flat list with keys delimited by dots
*/
public function register($config, $prefix = '')
{
// merge the new config values over existing data
if (empty($prefix)) {
$this->data = array_replace_recursive($this->data, $config);
}
else if (is_array($config)) {
$pkey = rtrim($prefix, '.');
$this->data[$pkey] = is_array($this->data[$pkey]) ? array_replace_recursive((array)$this->data[$pkey], $config) : $config;
}
foreach ((array)$config as $key => $val) {
if (is_array($val)) {
$this->register($val, "$prefix$key.");
}
else {
$this->data[$prefix.$key] = $val;
}
}
// resolve references in config options (e.g. %(foo.bar))
if (empty($prefix)) {
array_walk_recursive($this->data, array($this, 'resolve_reference'));
}
}
/**
* Callback to resolve references in the given config option value
*/
protected function resolve_reference(&$value, $key)
{
if (is_string($value)) {
$value = preg_replace_callback('/%[({]([\w.]+)[})]/i', array($this, 'replace_reference'), $value);
}
}
/**
* Callback function to replace the given reference with the read config value
*/
protected function replace_reference($m)
{
return $this->data[$m[1]];
}
/**
* Magic getter for direct read-only access to config options
*/
public function __get($name)
{
return $this->data[$name];
}
/**
* Magic isset check
*/
public function __isset($name)
{
return array_key_exists($name, $this->data);
}
/**
* Common getter for config options with fallback to default values
*
* @param string Config option name
* @param mixed Default value if option isn't set in config
* @param integer Expected variable type
* @return mixed Config option value
*/
public function get($name, $default = null, $type = null)
{
switch ($name) {
case 'output.tempdir':
case 'session.savepath':
// return an absolute path for relative directory properties
if (isset($this->data[$name]) && $this->data[$name][0] != '/') {
if (!($value = realpath(INSTALL_PATH . '/' . $this->data[$name]))) {
$value = INSTALL_PATH . '/' . $this->data[$name];
}
break;
}
default:
$value = array_key_exists($name, $this->data) ? $this->data[$name] : $default;
}
// convert value to the requested type
return $type ? self::convert($value, $type) : $value;
}
/**
* Adjust, override a config option
*/
public function set($name, $value)
{
$this->data[$name] = $value;
if (is_array($value)) {
$this->register($this->data[$name], $name.'.');
}
}
/**
* Determines whether we have a valid configuration loaded
*
* @return boolean True if valid, False otherwise
*/
public function valid()
{
return !empty($this->data);
}
/**
* Convert the given (string) value to the requested type
*
* @param string Config value
* @param int Output type (one of this class constants)
* @return mixed The converted value
*/
public static function convert($value, $type)
{
// convert value to the requested type
switch ($type) {
case self::INT:
return intval($value);
case self::FLOAT:
return floatval($value);
case self::BOOL:
return (bool)preg_match('/^(true|1|on|enabled|yes)$/i', $value);
case self::ARR:
return array_filter(preg_split('/,\s*/', strval($value)));
case self::HASH:
$arr = array();
if (preg_match_all('/([\w]+)\s*=\s*([^,]*)(,\s*|$)/', trim(strval($value), '{} '), $matches, PREG_SET_ORDER)) {
foreach ($matches as $m) {
$arr[$m[1]] = is_numeric($m[2]) ? floatval($m[2]) : $m[2];
}
}
return $arr;
case self::EMAIL:
if (preg_match('/(\S+|("[^"]+"))@\S+/', $value, $m)) {
$email = trim($m[0], '<>');
}
return $email;
}
return $value;
}
/**
* Shortcut method to convert to a boolean value
*/
public static function boolean($value)
{
return self::convert($value, self::BOOL);
}
/**
* Shortcut method to convert to a integer value
*/
public static function intval($value)
{
return self::convert($value, self::INT);
}
/**
* Shortcut method to convert to a float value
*/
public static function floatval($value)
{
return self::convert($value, self::FLOAT);
}
/**
* Shortcut method to convert to an array value
*/
public static function arr($value)
{
return self::convert($value, self::ARR);
}
/**
* Shortcut method to convert to a hash array value
*/
public static function hash($value)
{
return self::convert($value, self::HASH);
}
/**
* Convenience method to check whether a certain value is part of an option (list)
*
* @param mixed Value to compare
* @param mixed Config option value
* @param boolean Treat undefined options as 'match'
* @return boolean True of the given value is listed in config
*/
public static function in_array($value, $option, $or_not_set = false)
{
// return true if option is not set (means 'allow all')
if (!isset($option) && $or_not_set) {
return true;
}
return in_array($value, self::convert($option, self::ARR));
}
}

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