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Diffstat (limited to 'include/smarty/libs/Config_File.class.php')
| -rw-r--r-- | include/smarty/libs/Config_File.class.php | 389 |
1 files changed, 389 insertions, 0 deletions
diff --git a/include/smarty/libs/Config_File.class.php b/include/smarty/libs/Config_File.class.php new file mode 100644 index 000000000..89ba41c45 --- /dev/null +++ b/include/smarty/libs/Config_File.class.php @@ -0,0 +1,389 @@ +<?php + +/** + * Config_File class. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * @link http://smarty.php.net/ + * @version 2.6.19 + * @copyright Copyright: 2001-2005 New Digital Group, Inc. + * @author Andrei Zmievski <andrei@php.net> + * @access public + * @package Smarty + */ + +/* $Id$ */ + +/** + * Config file reading class + * @package Smarty + */ +class Config_File { + /**#@+ + * Options + * @var boolean + */ + /** + * Controls whether variables with the same name overwrite each other. + */ + var $overwrite = true; + + /** + * Controls whether config values of on/true/yes and off/false/no get + * converted to boolean values automatically. + */ + var $booleanize = true; + + /** + * Controls whether hidden config sections/vars are read from the file. + */ + var $read_hidden = true; + + /** + * Controls whether or not to fix mac or dos formatted newlines. + * If set to true, \r or \r\n will be changed to \n. + */ + var $fix_newlines = true; + /**#@-*/ + + /** @access private */ + var $_config_path = ""; + var $_config_data = array(); + /**#@-*/ + + /** + * Constructs a new config file class. + * + * @param string $config_path (optional) path to the config files + */ + function Config_File($config_path = NULL) + { + if (isset($config_path)) + $this->set_path($config_path); + } + + + /** + * Set the path where configuration files can be found. + * + * @param string $config_path path to the config files + */ + function set_path($config_path) + { + if (!empty($config_path)) { + if (!is_string($config_path) || !file_exists($config_path) || !is_dir($config_path)) { + $this->_trigger_error_msg("Bad config file path '$config_path'"); + return; + } + if(substr($config_path, -1) != DIRECTORY_SEPARATOR) { + $config_path .= DIRECTORY_SEPARATOR; + } + + $this->_config_path = $config_path; + } + } + + + /** + * Retrieves config info based on the file, section, and variable name. + * + * @param string $file_name config file to get info for + * @param string $section_name (optional) section to get info for + * @param string $var_name (optional) variable to get info for + * @return string|array a value or array of values + */ + function get($file_name, $section_name = NULL, $var_name = NULL) + { + if (empty($file_name)) { + $this->_trigger_error_msg('Empty config file name'); + return; + } else { + $file_name = $this->_config_path . $file_name; + if (!isset($this->_config_data[$file_name])) + $this->load_file($file_name, false); + } + + if (!empty($var_name)) { + if (empty($section_name)) { + return $this->_config_data[$file_name]["vars"][$var_name]; + } else { + if(isset($this->_config_data[$file_name]["sections"][$section_name]["vars"][$var_name])) + return $this->_config_data[$file_name]["sections"][$section_name]["vars"][$var_name]; + else + return array(); + } + } else { + if (empty($section_name)) { + return (array)$this->_config_data[$file_name]["vars"]; + } else { + if(isset($this->_config_data[$file_name]["sections"][$section_name]["vars"])) + return (array)$this->_config_data[$file_name]["sections"][$section_name]["vars"]; + else + return array(); + } + } + } + + + /** + * Retrieves config info based on the key. + * + * @param $file_name string config key (filename/section/var) + * @return string|array same as get() + * @uses get() retrieves information from config file and returns it + */ + function &get_key($config_key) + { + list($file_name, $section_name, $var_name) = explode('/', $config_key, 3); + $result = &$this->get($file_name, $section_name, $var_name); + return $result; + } + + /** + * Get all loaded config file names. + * + * @return array an array of loaded config file names + */ + function get_file_names() + { + return array_keys($this->_config_data); + } + + + /** + * Get all section names from a loaded file. + * + * @param string $file_name config file to get section names from + * @return array an array of section names from the specified file + */ + function get_section_names($file_name) + { + $file_name = $this->_config_path . $file_name; + if (!isset($this->_config_data[$file_name])) { + $this->_trigger_error_msg("Unknown config file '$file_name'"); + return; + } + + return array_keys($this->_config_data[$file_name]["sections"]); + } + + + /** + * Get all global or section variable names. + * + * @param string $file_name config file to get info for + * @param string $section_name (optional) section to get info for + * @return array an array of variables names from the specified file/section + */ + function get_var_names($file_name, $section = NULL) + { + if (empty($file_name)) { + $this->_trigger_error_msg('Empty config file name'); + return; + } else if (!isset($this->_config_data[$file_name])) { + $this->_trigger_error_msg("Unknown config file '$file_name'"); + return; + } + + if (empty($section)) + return array_keys($this->_config_data[$file_name]["vars"]); + else + return array_keys($this->_config_data[$file_name]["sections"][$section]["vars"]); + } + + + /** + * Clear loaded config data for a certain file or all files. + * + * @param string $file_name file to clear config data for + */ + function clear($file_name = NULL) + { + if ($file_name === NULL) + $this->_config_data = array(); + else if (isset($this->_config_data[$file_name])) + $this->_config_data[$file_name] = array(); + } + + + /** + * Load a configuration file manually. + * + * @param string $file_name file name to load + * @param boolean $prepend_path whether current config path should be + * prepended to the filename + */ + function load_file($file_name, $prepend_path = true) + { + if ($prepend_path && $this->_config_path != "") + $config_file = $this->_config_path . $file_name; + else + $config_file = $file_name; + + ini_set('track_errors', true); + $fp = @fopen($config_file, "r"); + if (!is_resource($fp)) { + $this->_trigger_error_msg("Could not open config file '$config_file'"); + return false; + } + + $contents = ($size = filesize($config_file)) ? fread($fp, $size) : ''; + fclose($fp); + + $this->_config_data[$config_file] = $this->parse_contents($contents); + return true; + } + + /** + * Store the contents of a file manually. + * + * @param string $config_file file name of the related contents + * @param string $contents the file-contents to parse + */ + function set_file_contents($config_file, $contents) + { + $this->_config_data[$config_file] = $this->parse_contents($contents); + return true; + } + + /** + * parse the source of a configuration file manually. + * + * @param string $contents the file-contents to parse + */ + function parse_contents($contents) + { + if($this->fix_newlines) { + // fix mac/dos formatted newlines + $contents = preg_replace('!\r\n?!', "\n", $contents); + } + + $config_data = array(); + $config_data['sections'] = array(); + $config_data['vars'] = array(); + + /* reference to fill with data */ + $vars =& $config_data['vars']; + + /* parse file line by line */ + preg_match_all('!^.*\r?\n?!m', $contents, $match); + $lines = $match[0]; + for ($i=0, $count=count($lines); $i<$count; $i++) { + $line = $lines[$i]; + if (empty($line)) continue; + + if ( substr($line, 0, 1) == '[' && preg_match('!^\[(.*?)\]!', $line, $match) ) { + /* section found */ + if (substr($match[1], 0, 1) == '.') { + /* hidden section */ + if ($this->read_hidden) { + $section_name = substr($match[1], 1); + } else { + /* break reference to $vars to ignore hidden section */ + unset($vars); + $vars = array(); + continue; + } + } else { + $section_name = $match[1]; + } + if (!isset($config_data['sections'][$section_name])) + $config_data['sections'][$section_name] = array('vars' => array()); + $vars =& $config_data['sections'][$section_name]['vars']; + continue; + } + + if (preg_match('/^\s*(\.?\w+)\s*=\s*(.*)/s', $line, $match)) { + /* variable found */ + $var_name = rtrim($match[1]); + if (strpos($match[2], '"""') === 0) { + /* handle multiline-value */ + $lines[$i] = substr($match[2], 3); + $var_value = ''; + while ($i<$count) { + if (($pos = strpos($lines[$i], '"""')) === false) { + $var_value .= $lines[$i++]; + } else { + /* end of multiline-value */ + $var_value .= substr($lines[$i], 0, $pos); + break; + } + } + $booleanize = false; + + } else { + /* handle simple value */ + $var_value = preg_replace('/^([\'"])(.*)\1$/', '\2', rtrim($match[2])); + $booleanize = $this->booleanize; + + } + $this->_set_config_var($vars, $var_name, $var_value, $booleanize); + } + /* else unparsable line / means it is a comment / means ignore it */ + } + return $config_data; + } + + /**#@+ @access private */ + /** + * @param array &$container + * @param string $var_name + * @param mixed $var_value + * @param boolean $booleanize determines whether $var_value is converted to + * to true/false + */ + function _set_config_var(&$container, $var_name, $var_value, $booleanize) + { + if (substr($var_name, 0, 1) == '.') { + if (!$this->read_hidden) + return; + else + $var_name = substr($var_name, 1); + } + + if (!preg_match("/^[a-zA-Z_]\w*$/", $var_name)) { + $this->_trigger_error_msg("Bad variable name '$var_name'"); + return; + } + + if ($booleanize) { + if (preg_match("/^(on|true|yes)$/i", $var_value)) + $var_value = true; + else if (preg_match("/^(off|false|no)$/i", $var_value)) + $var_value = false; + } + + if (!isset($container[$var_name]) || $this->overwrite) + $container[$var_name] = $var_value; + else { + settype($container[$var_name], 'array'); + $container[$var_name][] = $var_value; + } + } + + /** + * @uses trigger_error() creates a PHP warning/error + * @param string $error_msg + * @param integer $error_type one of + */ + function _trigger_error_msg($error_msg, $error_type = E_USER_WARNING) + { + trigger_error("Config_File error: $error_msg", $error_type); + } + /**#@-*/ +} + +?> |