Xnyo - Sources for file plugins/config/file.php in version 2.0

Sources for file plugins/config/file.php in version 2.0

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<?PHP

/*
 * Project:     Onyx: PHP Application Backend
 * File:        config/file.php
 *              Method to parse configuration files
 *
 * Version:     2.0
 * CVS tag:     $Id: file.php,v 1.12 2003/05/31 08:29:39 bok Exp $
 * Author:      Robert Amos <bok[at]ausmac.net>
 *              Andrew Wellington <proton[at]wiretapped.net>
 * Copyright:   2001,2002,2003 odynia.org.
*/

class config_file_plugin {

    /**
     * Method:            parse
     * Description:    Parse Configuration Files
     * Arguments:        string    - file name
     * Returns:            an array of the config file (empty if error)
    **/
   function parse($file=NULL) {

        global $onyx_parent;

        // check first
        if (is_null($file)) {
            $onyx_parent->trigger_error('No configuration file specified.', WARNING);
            return array();
        }

        // check it exists and we can read it
        if (!file_exists($file) || !is_readable($file)) {
            $onyx_parent->trigger_error('File ($file) not found or isnt readable.', WARNING);
            return array();
        }

        // well what else is there to do now but start it off?
        $fp = fopen($file, "r");

        // keep a line counter for debugging and errors
        $line = 0;

        // for dealing with variables in config values for later        
        global $onyx_parent;
        if (is_object($GLOBALS['smarty']))
            $vars = $GLOBALS['smarty']->get_template_vars();

        // loop the file
        while (!feof($fp)) {

            // read line in
            $linebuf = chop(fgets($fp, 1024));

            // deal with comments
            if (preg_match("/^[^a-zA-Z0-9_]/", $linebuf)) {
                $line++;
                continue;
            }

            // split!!
            if (!preg_match("/^([\S]+?)\s+(.*?)$/", $linebuf, $m)) {
                $line++;
                continue; // invalid line ey
            }

            // allow for variables in the files
            if (preg_match_all('/\{\$([^}]*?)}/', $m[2], $variables, PREG_SET_ORDER)) {
                foreach ($variables as $v) {
                    if (!empty($vars[$v[1]])) {
                        $match[] = $v[0];
                        $replace[] = $vars[$v[1]];
                    } elseif (!empty($onyx_parent->config[$v[1]])) {
                        $match[] = $v[0];
                        $replace[] = $onyx_parent->config[$v[1]];
                    } elseif (!empty($onyx_parent->page[$v[1]])) {
                        $match[] = $v[0];
                        $replace[] = $onyx_parent->page[$v[1]];
                    } elseif (!empty($GLOBALS[$v[1]])) {
                        // only other source, global vars i guess
                        $match[] = $v[0];
                        $replace[] = $GLOBALS[$v[1]];
                    } else {
                        $match[] = $v[0];
                        $replace[] = str_replace('$', '\$', $v[0]);
                    }
                }
            }

            if (is_array($match)) {
                $evaluated = str_replace($match, $replace, $m[2]);
            } else {
                $evaluated = $m[2];
            }

            // there seriously has to be a better way of doing this
            $varline = "['".preg_replace("/\./", "']['", $m[1])."']";
            $varline = "return".$varline;

            eval("\$$varline = \"$evaluated\";");
        }

        fclose($fp);
        $line++;

        // phew
        return $return;
    }
}

?>