[platal.git] / classes / plglobals.php

<?php
/***************************************************************************
 *  Copyright (C) 2003-2009 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                *
 ***************************************************************************/
/** Debug levels:
 * DEBUG_BT     = show the backtraces (SQL/XMLRPC/...)
 * DEBUG_VALID  = run html validation
 * DEBUG_SMARTY = don't hide smarty errors/warnings/notices
 */
define('DEBUG_BT', 1);
define('DEBUG_VALID', 2);
define('DEBUG_SMARTY', 4);

/** 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 = PLATAL_CORE_VERSION;

    /** Debug level.
     * This is a combination of the DEBUG_ flags. As soon as at least
     * one flag is set, the debug mode is activated, this means:
     *   - debug panel on the top of the pages
     *   - don't hide php notices
     *   - recompile templates when they have been changed
     */
    public $debug   = 0;

    /** Access mode.
     */
    public $mode    = 'rw';    // 'rw' => read/write,
                               // 'r'  => read/only
                               // ''   => site down

    /** Catch-all mode for emails.
     * If set to a valid email address, all emails from plat/al are sent to
     * that email address, instead of their normal destination (From:, To:,
     * and CC: headers are not actually modified).
     * Note: only valid if restricted_platal is set to true.
     */
    public $email_catchall = false;

    /** Tell smarty to check the timestamps of the templates to decide
     * whether recompile the template or not. If this option is false and
     * debug mode is not activate, templates won't be recompile if they changed.
     */
    public $smarty_autocompile = false;

    /** 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;

    /** Cookie configuration.
     */
    public $cookie_ns = 'ORG';
    public $cookie_path = '/';

    /** 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(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();
    }

    /** Initialiase dynamic data in the object.
     * This is te place to read data from the database if needed.
     */
    public function init()
    {
    }

    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:
?>
Commit	Line	Data
4a28e567 FB	1	<?php
4a28e567 FB	2	/***************************************************************************
a7f778a5	3	* Copyright (C) 2003-2009 Polytechnique.org *
4a28e567 FB	4	* http://opensource.polytechnique.org/ *
	5	* *
	6	* This program is free software; you can redistribute it and/or modify *
	7	* it under the terms of the GNU General Public License as published by *
	8	* the Free Software Foundation; either version 2 of the License, or *
	9	* (at your option) any later version. *
	10	* *
	11	* This program is distributed in the hope that it will be useful, *
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of *
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
	14	* GNU General Public License for more details. *
	15	* *
	16	* You should have received a copy of the GNU General Public License *
	17	* along with this program; if not, write to the Free Software *
	18	* Foundation, Inc., *
	19	* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
	20	***************************************************************************/
47fa97fe FB	21	/** Debug levels:
	22	* DEBUG_BT = show the backtraces (SQL/XMLRPC/...)
	23	* DEBUG_VALID = run html validation
	24	* DEBUG_SMARTY = don't hide smarty errors/warnings/notices
	25	*/
	26	define('DEBUG_BT', 1);
	27	define('DEBUG_VALID', 2);
	28	define('DEBUG_SMARTY', 4);
4a28e567 FB	29
	30	/** PlGlobals provides functions to read a set of configuration files and gives
	31	* access to this configurations.
	32	*
	33	* The configuration files ares ini files with sections:
	34	* <pre>
	35	* [SectionName]
	36	* fieldname = value
	37	* </pre>
	38	*
	39	* With this configuration file, you'll be able to access 'value' via
	40	* $globals->sectionname->fieldname. Let say 'sectionname' is a namespace
	41	*
	42	*
	43	* You should derivate this class into a local Globals class. In this class
	44	* you can specify configuration variables that belongs to the 'global' namespace
	45	* (accessible via $global->fieldname). To do so, just define the fieldname
	46	* in your class and set its value in the [Core] section of you ini file.
	47	*/
	48	class PlGlobals
	49	{
3716d925	50	public $coreVersion = PLATAL_CORE_VERSION;
4a28e567	51
47fa97fe FB	52	/** Debug level.
	53	* This is a combination of the DEBUG_ flags. As soon as at least
	54	* one flag is set, the debug mode is activated, this means:
	55	* - debug panel on the top of the pages
	56	* - don't hide php notices
	57	* - recompile templates when they have been changed
	58	*/
	59	public $debug = 0;
	60
	61	/** Access mode.
	62	*/
	63	public $mode = 'rw'; // 'rw' => read/write,
	64	// 'r' => read/only
	65	// '' => site down
	66
a105f588 VZ	67	/** Catch-all mode for emails.
	68	* If set to a valid email address, all emails from plat/al are sent to
	69	* that email address, instead of their normal destination (From:, To:,
	70	* and CC: headers are not actually modified).
	71	* Note: only valid if restricted_platal is set to true.
0d40ddec	72	*/
a105f588	73	public $email_catchall = false;
0d40ddec	74
b5e56a71 FB	75	/** Tell smarty to check the timestamps of the templates to decide
	76	* whether recompile the template or not. If this option is false and
	77	* debug mode is not activate, templates won't be recompile if they changed.
	78	*/
	79	public $smarty_autocompile = false;
	80
4a28e567 FB	81	/** BaseURL of the site.
	82	* This is read from the HTTP headers if available but you MUST give a
	83	* default value for this field in you configuration file (because, this
	84	* can be used in CLI scripts that has no access no HTTP headers...)
	85	*
	86	* [Core]
	87	* baseurl = "https//www.mysite.org/"
	88	*/
	89	public $baseurl;
	90
	91	/** In case your base url is https-based, this provied an HTTP-based value
	92	* for the URL.
	93	*/
	94	public $baseurl_http;
	95
	96	/** paths */
	97	public $spoolroot;
	98
	99	/** Localization configuration.
	100	*/
	101	public $locale;
	102	public $timezone;
	103
f09d3319 FB	104	/** Cookie configuration.
	105	*/
	106	public $cookie_ns = 'ORG';
	107	public $cookie_path = '/';
	108
4a28e567 FB	109	/** You must give a list of file to load.
	110	* The filenames given are relatives to the config path of your plat/al installation.
	111	*/
	112	public function __construct(array $files)
	113	{
1edb5aa5	114	$this->spoolroot = dirname(dirname(dirname(__FILE__)));
4a28e567 FB	115
	116	$this->readConfig($files);
	117	if (isset($_SERVER) && isset($_SERVER['SERVER_NAME'])) {
	118	$base = empty($_SERVER['HTTPS']) ? 'http://' : 'https://';
	119	$this->baseurl = @trim($base .$_SERVER['SERVER_NAME'].dirname($_SERVER['PHP_SELF']), '/');
	120	$this->baseurl_http = @trim('http://'.$_SERVER['SERVER_NAME'].dirname($_SERVER['PHP_SELF']), '/');
	121	}
	122
	123	$this->setLocale();
	124	}
	125
d95d46a7 FB	126	/** Initialiase dynamic data in the object.
	127	* This is te place to read data from the database if needed.
	128	*/
	129	public function init()
	130	{
	131	}
	132
4a28e567 FB	133	private function readIniFile($filename)
	134	{
	135	$array = parse_ini_file($filename, true);
	136	if (!is_array($array)) {
	137	return;
	138	}
	139	foreach ($array as $cat => $conf) {
	140	$c = strtolower($cat);
	141	foreach ($conf as $k => $v) {
	142	if ($c == 'core' && property_exists($this, $k)) {
	143	$this->$k=$v;
	144	} else {
	145	if (!isset($this->$c)) {
	146	$this->$c = new stdClass;
	147	}
	148	$this->$c->$k = $v;
	149	}
	150	}
	151	}
	152	}
	153
	154	private function readConfig(array $files)
	155	{
	156	foreach ($files as $file) {
	157	$this->readIniFile($this->spoolroot . '/configs/' . $file);
	158	}
	159	if (file_exists($this->spoolroot.'/spool/conf/platal.dynamic.conf')) {
	160	$this->readIniFile($this->spoolroot.'/spool/conf/platal.dynamic.conf');
	161	}
	162	}
	163
	164	/** Writes an ini file separated in categories
	165	* @param filename the name of the file to write (overwrite existing)
	166	* @param categories an array of categories (array of keys and values)
	167	*/
	168	private function writeIniFile($filename, &$categories)
	169	{
	170	// [category]
	171	// key = value
	172	$f = fopen($filename, 'w');
	173	foreach ($categories as $cat => $conf) {
	174	fwrite($f, '; {{{ '.$cat."\n\n");
	175	fwrite($f, '['.$cat.']'."\n\n");
	176	foreach ($conf as $k => $v) {
	177	fwrite($f, $k.' = "'.str_replace('"','\\"',$v).'"'."\n");
	178	}
	179	fwrite($f, "\n".'; }}}'."\n");
	180	}
	181	fwrite($f, '; vim:set syntax=dosini foldmethod=marker:'."\n");
	182	fclose($f);
	183	}
	184
	185	/** Change dynamic config file
	186	* @param conf array of keys and values to add or replace
	187	* @param category name of category to change
	188	*
	189	* Opens the dynamic conf file and set values from conf in specified
	190	* category. Updates config vars too.
	191	*/
	192	public function changeDynamicConfig($conf, $category = 'Core')
	193	{
	194	$dynamicfile = $this->spoolroot.'/spool/conf/platal.dynamic.conf';
	195	if (file_exists($dynamicfile)) {
	196	$array = parse_ini_file($dynamicfile, true);
197	} else {
198	$array = null;
199	}
200	if (!is_array($array)) {
201	// dynamic conf is empty
202	$array = array($category => $conf);
203	} else {
204	// looks for a category that looks the same (case insensitive)
205	$same = false;
206	foreach ($array as $m => &$c) {
207	if (strtolower($m) == strtolower($category)) {
208	$same = $m;
209	break;
210	}
211	}
212	if (!$same) {
213	// this category doesn't exist yet
214	$array[$category] = $conf;
215	} else {
216	// this category already exists
217	$conflower = array();
218	foreach ($conf as $k => $v) {
219	$conflower[strtolower($k)] = $v;
220	}
221	// $conflower is now same as $conf but with lower case keys
222	// replaces values of keys that already exists
223	foreach ($array[$same] as $k => $v) {
224	if (isset($conflower[strtolower($k)])) {
225	$array[$same][$k] = $conflower[strtolower($k)];
226	unset($conflower[strtolower($k)]);
227	}
228	}
229	// add new keys
230	foreach ($conf as $k => $v) {
231	if (isset($conflower[strtolower($k)])) {
232	$array[$same][$k] = $v;
233	}
234	}
235	}
236	}
237	// writes the file over
238	$this->writeIniFile($dynamicfile, $array);
239	// rereads the new config to correctly set vars
240	$this->readIniFile($dynamicfile);
241	}
242
243	public function bootstrap($conf, $callback, $category = 'Core')
244	{
245	$bootstrap = false;
246	$category = strtolower($category);
247	foreach ($conf as $key) {
248	if (!isset($this->$category->$key)) {
249	$bootstrap = true;
250	break;
251	}
252	}
253	if ($bootstrap) {
254	call_user_func($callback);
255	}
256	}
257
258	private function setLocale()
259	{
260	setlocale(LC_MESSAGES, $this->locale);
261	setlocale(LC_TIME, $this->locale);
262	setlocale(LC_CTYPE, $this->locale);
263	date_default_timezone_set($this->timezone);
264	mb_internal_encoding("UTF-8");
265	}
266	}
267
268	// vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8:
269	?>