mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-12-23 23:29:31 +01:00
17df92a460
not much we can do, but give an good error message, with a download link to the MySQL dump
317 lines
10 KiB
PHP
317 lines
10 KiB
PHP
<?php
|
|
/**
|
|
* eGroupWare - Calendar's timezone information
|
|
*
|
|
* Timezone information get imported from SQLite database, "borrowed" of Lighting TB extension.
|
|
*
|
|
* @link http://www.egroupware.org
|
|
* @package calendar
|
|
* @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
|
|
* @copyright (c) 2009 by RalfBecker-At-outdoor-training.de
|
|
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
|
|
* @version $Id$
|
|
*/
|
|
|
|
/**
|
|
* Class for timezone information
|
|
*
|
|
* This class serves two purposes:
|
|
* - convert between TZID strings and nummeric tz_id's stored in database
|
|
* - get iCal VTIMEZONE component for a TZID (data from Lighting extension)
|
|
*
|
|
* Recommendations about timezone handling in calendars:
|
|
* @link http://www.calconnect.org/publications/icalendartimezoneproblemsandrecommendationsv1.0.pdf
|
|
*
|
|
* Mapping Windows timezone to standard TZID's:
|
|
* @link http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/windows_tzid.html
|
|
*
|
|
* UTC is treated specially: it's implicitly mapped to tz_id=-1 (to be able to store it for events),
|
|
* but calendar_ical creates NO VTIMEZONE component for it.
|
|
*/
|
|
class calendar_timezones
|
|
{
|
|
/**
|
|
* Methods callable via menuation
|
|
*
|
|
* @var array
|
|
*/
|
|
public $public_functions = array(
|
|
'update' => true,
|
|
);
|
|
|
|
/**
|
|
* Name of timezone table
|
|
*/
|
|
const TABLE = 'egw_cal_timezones';
|
|
|
|
/**
|
|
* Cached timezone data (reference to session created by init_static)
|
|
*
|
|
* @var array id => data
|
|
*/
|
|
protected static $tz_cache = array();
|
|
|
|
/**
|
|
* Cached timezone data (reference to session created by init_static)
|
|
*
|
|
* @var array tzid => id
|
|
*/
|
|
protected static $tz2id = array();
|
|
|
|
/**
|
|
* Get DateTimeZone object for a given TZID
|
|
*
|
|
* We use our database to replace eg. Windows timezones not understood by PHP with their standard TZID
|
|
*
|
|
* @param string $tzid
|
|
* @return DateTimeZone
|
|
* @throws Exception if called with an unknown TZID
|
|
*/
|
|
public function DateTimeZone($tzid)
|
|
{
|
|
if (($id = self::tz2id($tzid,'alias')))
|
|
{
|
|
$tzid = self::id2tz($id);
|
|
}
|
|
return new DateTimeZone($tzid);
|
|
}
|
|
|
|
/**
|
|
* Get the nummeric id (or other data) for a given TZID
|
|
*
|
|
* Examples:
|
|
* - calendar_timezone::tz2id('Europe/Berlin') returns nummeric id for given TZID
|
|
* - calendar_timezone::tz2id('Europe/Berlin','component') returns VTIMEZONE component for given TZID
|
|
*
|
|
* @param string $tzid TZID
|
|
* @param string $what='id' what to return, default id, null for whole array
|
|
* @return int tz_id or null if not found
|
|
*/
|
|
public static function tz2id($tzid,$what='id')
|
|
{
|
|
$id =& self::$tz2id[$tzid];
|
|
|
|
if (!isset($id))
|
|
{
|
|
if (($data = $GLOBALS['egw']->db->select(self::TABLE,'*',array(
|
|
'tz_tzid' => $tzid,
|
|
),__LINE__,__FILE__,false,'','calendar')->fetch()))
|
|
{
|
|
$id = $data['tz_id'];
|
|
self::$tz_cache[$id] = egw_db::strip_array_keys($data,'tz_');
|
|
}
|
|
}
|
|
if (isset($id) && $what != 'id')
|
|
{
|
|
return self::id2tz($id,$what);
|
|
}
|
|
return $id;
|
|
}
|
|
|
|
/**
|
|
* Get timezone data for a given nummeric id
|
|
*
|
|
* if NOT tzid or alias queried, we automatically resolve an evtl. alias
|
|
*
|
|
* Example:
|
|
* - calendar_timezone::id2tz($id) returns TZID
|
|
* - calendar_timezone::id2tz($id,'component') returns VTIMEZONE component for the given id
|
|
*
|
|
* @param int $id
|
|
* @param string $what='tzid' what data to return or null for whole data array, with keys 'id', 'tzid', 'component', 'alias', 'latitude', 'longitude'
|
|
* @return mixed false: if not found
|
|
*/
|
|
public static function id2tz($id,$what='tzid')
|
|
{
|
|
$data =& self::$tz_cache[$id];
|
|
|
|
if (!isset($data))
|
|
{
|
|
if (($data = $GLOBALS['egw']->db->select(self::TABLE,'*',array(
|
|
'tz_id' => $id,
|
|
),__LINE__,__FILE__,false,'','calendar')->fetch()))
|
|
{
|
|
$data = egw_db::strip_array_keys($data,'tz_');
|
|
self::$tz2id[$data['tzid']] = $id;
|
|
}
|
|
}
|
|
// if not tzid queried, resolve aliases automatically
|
|
if ($data && $data['alias'] && $what != 'tzid' && $what != 'alias')
|
|
{
|
|
$data = self::id2tz($data['alias'],null);
|
|
}
|
|
return !$data ? $data : ($what ? $data[$what] : $data);
|
|
}
|
|
|
|
/**
|
|
* Init static variables for session
|
|
*
|
|
* As we use the returned reference, we do NOT need to care about storing the information in the session
|
|
*/
|
|
public static function init_static()
|
|
{
|
|
self::$tz_cache =& egw_cache::getSession(__CLASS__,'tz_cache');
|
|
self::$tz2id =& egw_cache::getSession(__CLASS__,'tz2id');
|
|
|
|
// init cache with mapping UTC <--> -1, as UTC is no real timezone, but we need to be able to use it in calendar
|
|
if (!is_array(self::$tz2id))
|
|
{
|
|
self::$tz_cache = array('-1' => array(
|
|
'tzid' => 'UTC',
|
|
'id' => -1,
|
|
));
|
|
self::$tz2id = array('UTC' => -1);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Import timezones from sqlite file
|
|
*
|
|
* @param string $file='calendar/setup/timezones.sqlite' filename relative to EGW_SERVER_ROOT
|
|
* @param boolean $check_version=true true: check version and only act, if it's different
|
|
* @return string message about update
|
|
* @throws egw_exception_wrong_parameter if $file is not readable or wrong format/version
|
|
* @throws egw_exception_assertion_failed if no PDO sqlite support
|
|
*/
|
|
public static function import_sqlite($file='calendar/setup/timezones.sqlite',$check_version=true)
|
|
{
|
|
$path = EGW_SERVER_ROOT.'/'.$file;
|
|
|
|
if (!file_exists($path) || !is_readable($path))
|
|
{
|
|
throw new egw_exception_wrong_parameter(__METHOD__."('$file') not found or readable!");
|
|
}
|
|
if (!check_load_extension('pdo') || !check_load_extension('pdo_sqlite'))
|
|
{
|
|
throw new egw_exception_assertion_failed(__METHOD__."('$file') required SQLite support (PHP extension pdo_sqlite) missing!");
|
|
}
|
|
$pdo = new PDO('sqlite:'.$path);
|
|
// some PHP pdo_sqlite can for whatever reason NOT read the timezones database (reported eg. on Gentu)
|
|
// not much we can do, but give an good error message, with a download link to the MySQL dump
|
|
if (!($rs = $pdo->query('SELECT version FROM tz_schema_version')))
|
|
{
|
|
return lang('Your PHP extension pdo_sqlite is broken!').'<br />'.lang('It can NOT read timezones from sqlite database %1!',$path).'<br />'.
|
|
lang('As an alternative you can %1download a MySQL dump%2 and import it manually into egw_cal_timezones table.',
|
|
'<a href="http://dev.egroupware.org/other/egw_cal_timezones.sql.bz2">','</a>');
|
|
}
|
|
if ($rs->fetchColumn() != 1)
|
|
{
|
|
throw new egw_exception_wrong_parameter(__METHOD__."('$file') only schema version 1 supported!");
|
|
}
|
|
$tz_version = $pdo->query('SELECT version FROM tz_version')->fetchColumn();
|
|
$tz_db_version = $GLOBALS['egw']->db->query("SELECT config_value FROM egw_config WHERE config_name='tz_version' AND config_app='phpgwapi'",__LINE__,__FILE__)->fetchColumn();
|
|
//echo "<p>tz_version($path)=$tz_version, tz_db_version=$tz_db_version</p>\n";
|
|
if ($tz_version === $tz_db_version)
|
|
{
|
|
return lang('Nothing to update, version is already %1.',$tz_db_version); // we already have the right
|
|
}
|
|
$tz2id = array();
|
|
foreach($pdo->query('SELECT * FROM tz_data ORDER BY alias') as $data)
|
|
{
|
|
if ($data['alias'])
|
|
{
|
|
$data['alias'] = $tz2id[$data['alias']];
|
|
if (!$data['alias']) continue; // there's no such tzid
|
|
}
|
|
$GLOBALS['egw']->db->insert('egw_cal_timezones',array(
|
|
'tz_alias' => $data['alias'],
|
|
'tz_latitude' => $data['latitude'],
|
|
'tz_longitude' => $data['longitude'],
|
|
'tz_component' => $data['component'],
|
|
),array(
|
|
'tz_tzid' => $data['tzid'],
|
|
),__LINE__,__FILE__,'calendar');
|
|
|
|
if (!($tz2id[$data['tzid']] = $GLOBALS['egw']->db->get_last_insert_id('egw_cal_timezones','tz_id')))
|
|
{
|
|
$tz2id[$data['tzid']] = $GLOBALS['egw']->db->select('egw_cal_timezones','tz_id',array(
|
|
'tz_tzid' => $data['tzid'],
|
|
),__LINE__,__FILE__,false,'','calendar')->fetchColumn();
|
|
}
|
|
}
|
|
$GLOBALS['egw']->db->insert('egw_config',array('config_value' => $tz_version),array(
|
|
'config_name' => 'tz_version',
|
|
'config_app' => 'phpgwapi',
|
|
),__LINE__,__FILE__,'phpgwapi');
|
|
|
|
//_debug_array($tz2id);
|
|
return lang('Timezones updated to version %1 (%2 records updated).',$tz_version,count($tz2id));
|
|
}
|
|
|
|
/**
|
|
* Admin >> Update timezones
|
|
*
|
|
*/
|
|
public function update()
|
|
{
|
|
if (!$GLOBALS['egw_info']['user']['apps']['admin'])
|
|
{
|
|
throw new egw_exception_no_permission_admin();
|
|
}
|
|
$GLOBALS['egw']->framework->render('<h3>'.self::import_sqlite()."</h3>\n",lang('Update timezones'),true);
|
|
}
|
|
}
|
|
/*
|
|
if (isset($_SERVER['SCRIPT_FILENAME']) && $_SERVER['SCRIPT_FILENAME'] == __FILE__) // some tests
|
|
{
|
|
$GLOBALS['egw_info'] = array(
|
|
'flags' => array(
|
|
'currentapp' => 'calendar',
|
|
)
|
|
);
|
|
include('../../header.inc.php');
|
|
calendar_timezones::init_static();
|
|
|
|
// echo "<h3>Testing availability of VTIMEZONE data for each tzid supported by PHP</h3>\n";
|
|
// foreach(DateTimeZone::listIdentifiers() as $tz)
|
|
echo "<h3>Testing availability of VTIMEZONE data for each TZID supported by EGroupware</h3>\n";
|
|
foreach(call_user_func_array('array_merge',egw_time::getTimezones()) as $tz => $label)
|
|
{
|
|
if (($id = calendar_timezones::tz2id($tz,'component')) || $tz == 'UTC') // UTC is always supported
|
|
{
|
|
$found[] = $tz;
|
|
//if (substr($tz,0,10) == 'Australia/') echo "$tz: found<br />\n";
|
|
}
|
|
else
|
|
{
|
|
$not_found[] = $tz;
|
|
echo "$tz: <b>NOT</b> found<br />\n";
|
|
}
|
|
}
|
|
echo '<h3>'.count($found).' found, '.count($not_found)." <b>NOT</b> found</h3>\n";
|
|
|
|
if ($not_found) echo "<pre>\n\$no_vtimezone = array(\n\t'".implode("',\n\t'",$not_found)."',\n);\n</pre>\n";
|
|
|
|
echo "<h3>Testing availability of PHP support for each TZID supported by EGroupware's timezone database:</h3>\n";
|
|
foreach($GLOBALS['egw']->db->select('egw_cal_timezones','*',false,__LINE__,__FILE__,false,'','calendar') as $row)
|
|
{
|
|
try
|
|
{
|
|
$timezone = new DateTimeZone($row['tz_tzid']);
|
|
//$timezone = calendar_timezones::DateTimeZone($row['tz_tzid']);
|
|
echo $row['tz_tzid'].": available<br />\n";
|
|
}
|
|
catch(Exception $e)
|
|
{
|
|
if (($id = calendar_timezones::tz2id($row['tz_tzid'],'alias')) &&
|
|
($alias = calendar_timezones::id2tz($id)))
|
|
{
|
|
|
|
try
|
|
{
|
|
$timezone = new DateTimeZone($alias);
|
|
echo $row['tz_tzid']."='$alias': available through <b>alias</b><br />\n";
|
|
unset($e);
|
|
}
|
|
catch(Exception $e)
|
|
{
|
|
// ignore
|
|
}
|
|
}
|
|
if (isset($e)) echo $row['tz_tzid'].": <b>NOT</b> available<br />\n";
|
|
}
|
|
}
|
|
}
|
|
else*/
|
|
calendar_timezones::init_static();
|