+<?php
+/***************************************************************************
+ * Copyright (C) 2003-2008 Polytechnique.org *
+ * http://opensource.polytechnique.org/ *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License as published by *
+ * the Free Software Foundation; either version 2 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 General Public License for more details. *
+ * *
+ * You should have received a copy of the GNU General Public License *
+ * along with this program; if not, write to the Free Software *
+ * Foundation, Inc., *
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
+ ***************************************************************************/
+
+/** PlGlobals provides functions to read a set of configuration files and gives
+ * access to this configurations.
+ *
+ * The configuration files ares ini files with sections:
+ * <pre>
+ * [SectionName]
+ * fieldname = value
+ * </pre>
+ *
+ * With this configuration file, you'll be able to access 'value' via
+ * $globals->sectionname->fieldname. Let say 'sectionname' is a namespace
+ *
+ *
+ * You should derivate this class into a local Globals class. In this class
+ * you can specify configuration variables that belongs to the 'global' namespace
+ * (accessible via $global->fieldname). To do so, just define the fieldname
+ * in your class and set its value in the [Core] section of you ini file.
+ */
+class PlGlobals
+{
+ public $coreVersion = '0.9.17';
+
+ /** BaseURL of the site.
+ * This is read from the HTTP headers if available but you MUST give a
+ * default value for this field in you configuration file (because, this
+ * can be used in CLI scripts that has no access no HTTP headers...)
+ *
+ * [Core]
+ * baseurl = "https//www.mysite.org/"
+ */
+ public $baseurl;
+
+ /** In case your base url is https-based, this provied an HTTP-based value
+ * for the URL.
+ */
+ public $baseurl_http;
+
+ /** paths */
+ public $spoolroot;
+
+ /** Localization configuration.
+ */
+ public $locale;
+ public $timezone;
+
+ /** You must give a list of file to load.
+ * The filenames given are relatives to the config path of your plat/al installation.
+ */
+ public function __construct(array $files)
+ {
+ $this->spoolroot = dirname(dirname(__FILE__));
+
+ $this->readConfig($files);
+ if (isset($_SERVER) && isset($_SERVER['SERVER_NAME'])) {
+ $base = empty($_SERVER['HTTPS']) ? 'http://' : 'https://';
+ $this->baseurl = @trim($base .$_SERVER['SERVER_NAME'].dirname($_SERVER['PHP_SELF']), '/');
+ $this->baseurl_http = @trim('http://'.$_SERVER['SERVER_NAME'].dirname($_SERVER['PHP_SELF']), '/');
+ }
+
+ $this->setLocale();
+ }
+
+ private function readIniFile($filename)
+ {
+ $array = parse_ini_file($filename, true);
+ if (!is_array($array)) {
+ return;
+ }
+ foreach ($array as $cat => $conf) {
+ $c = strtolower($cat);
+ foreach ($conf as $k => $v) {
+ if ($c == 'core' && property_exists($this, $k)) {
+ $this->$k=$v;
+ } else {
+ if (!isset($this->$c)) {
+ $this->$c = new stdClass;
+ }
+ $this->$c->$k = $v;
+ }
+ }
+ }
+ }
+
+ private function readConfig(array $files)
+ {
+ foreach ($files as $file) {
+ $this->readIniFile($this->spoolroot . '/configs/' . $file);
+ }
+ if (file_exists($this->spoolroot.'/spool/conf/platal.dynamic.conf')) {
+ $this->readIniFile($this->spoolroot.'/spool/conf/platal.dynamic.conf');
+ }
+ }
+
+ /** Writes an ini file separated in categories
+ * @param filename the name of the file to write (overwrite existing)
+ * @param categories an array of categories (array of keys and values)
+ */
+ private function writeIniFile($filename, &$categories)
+ {
+ // [category]
+ // key = value
+ $f = fopen($filename, 'w');
+ foreach ($categories as $cat => $conf) {
+ fwrite($f, '; {{{ '.$cat."\n\n");
+ fwrite($f, '['.$cat.']'."\n\n");
+ foreach ($conf as $k => $v) {
+ fwrite($f, $k.' = "'.str_replace('"','\\"',$v).'"'."\n");
+ }
+ fwrite($f, "\n".'; }}}'."\n");
+ }
+ fwrite($f, '; vim:set syntax=dosini foldmethod=marker:'."\n");
+ fclose($f);
+ }
+
+ /** Change dynamic config file
+ * @param conf array of keys and values to add or replace
+ * @param category name of category to change
+ *
+ * Opens the dynamic conf file and set values from conf in specified
+ * category. Updates config vars too.
+ */
+ public function changeDynamicConfig($conf, $category = 'Core')
+ {
+ $dynamicfile = $this->spoolroot.'/spool/conf/platal.dynamic.conf';
+ if (file_exists($dynamicfile)) {
+ $array = parse_ini_file($dynamicfile, true);
+ } else {
+ $array = null;
+ }
+ if (!is_array($array)) {
+ // dynamic conf is empty
+ $array = array($category => $conf);
+ } else {
+ // looks for a category that looks the same (case insensitive)
+ $same = false;
+ foreach ($array as $m => &$c) {
+ if (strtolower($m) == strtolower($category)) {
+ $same = $m;
+ break;
+ }
+ }
+ if (!$same) {
+ // this category doesn't exist yet
+ $array[$category] = $conf;
+ } else {
+ // this category already exists
+ $conflower = array();
+ foreach ($conf as $k => $v) {
+ $conflower[strtolower($k)] = $v;
+ }
+ // $conflower is now same as $conf but with lower case keys
+ // replaces values of keys that already exists
+ foreach ($array[$same] as $k => $v) {
+ if (isset($conflower[strtolower($k)])) {
+ $array[$same][$k] = $conflower[strtolower($k)];
+ unset($conflower[strtolower($k)]);
+ }
+ }
+ // add new keys
+ foreach ($conf as $k => $v) {
+ if (isset($conflower[strtolower($k)])) {
+ $array[$same][$k] = $v;
+ }
+ }
+ }
+ }
+ // writes the file over
+ $this->writeIniFile($dynamicfile, $array);
+ // rereads the new config to correctly set vars
+ $this->readIniFile($dynamicfile);
+ }
+
+ public function bootstrap($conf, $callback, $category = 'Core')
+ {
+ $bootstrap = false;
+ $category = strtolower($category);
+ foreach ($conf as $key) {
+ if (!isset($this->$category->$key)) {
+ $bootstrap = true;
+ break;
+ }
+ }
+ if ($bootstrap) {
+ call_user_func($callback);
+ }
+ }
+
+ private function setLocale()
+ {
+ setlocale(LC_MESSAGES, $this->locale);
+ setlocale(LC_TIME, $this->locale);
+ setlocale(LC_CTYPE, $this->locale);
+ date_default_timezone_set($this->timezone);
+ mb_internal_encoding("UTF-8");
+ }
+}
+
+// vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8:
+?>