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940deb08a9
egroupware/phpgwapi/inc/class.translation_sql.inc.php
Ralf Becker 940deb08a9 finished DB backup and restore for eGW: 
- the backup is independent of the used DB and can eg. be used to port an install to an other DB type
- autom. backup before upgrades of the DB structure
- installing backups instead an installation from scratch
- own backup screen in setup and admin to:
  + shedule repeating backups
  + up- and download of backups
  + creating and restoring backups
2004-10-15 23:06:34 +00:00

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<?php
/**************************************************************************\
* eGroupWare API - Translation class for SQL *
* This file written by Joseph Engo <jengo@phpgroupware.org> *
* and Dan Kuykendall <seek3r@phpgroupware.org> *
* Handles multi-language support use SQL tables *
* Copyright (C) 2000, 2001 Joseph Engo *
* ------------------------------------------------------------------------ *
* This library is part of the eGroupWare API *
* http://www.egroupware.org/api *
* ------------------------------------------------------------------------ *
* 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 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 *
\**************************************************************************/
/* $Id$ */
// define the maximal length of a message_id, all message_ids have to be unique
// in this length, our column is varchar 255, but addslashes might add some length
if (!defined('MAX_MESSAGE_ID_LENGTH'))
{
define('MAX_MESSAGE_ID_LENGTH',230);
}
// some constanst for pre php4.3
if (!defined('PHP_SHLIB_SUFFIX'))
{
define('PHP_SHLIB_SUFFIX',strtoupper(substr(PHP_OS, 0,3)) == 'WIN' ? 'dll' : 'so');
}
if (!defined('PHP_SHLIB_PREFIX'))
{
define('PHP_SHLIB_PREFIX',PHP_SHLIB_SUFFIX == 'dll' ? 'php_' : '');
}
class translation
{
var $userlang = 'en';
var $loaded_apps = array();
var $line_rejected = array();
function translation($warnings = False)
{
for ($i = 1; $i <= 9; $i++)
{
$this->placeholders[] = '%'.$i;
}
$this->db = is_object($GLOBALS['phpgw']->db) ? $GLOBALS['phpgw']->db : $GLOBALS['phpgw_setup']->db;
$this->db->set_app('phpgwapi');
$this->lang_table = 'phpgw_lang';
$this->languages_table = 'phpgw_languages';
$this->config_table = 'phpgw_config';
if (!isset($GLOBALS['phpgw_setup']))
{
$this->system_charset = @$GLOBALS['phpgw_info']['server']['system_charset'];
}
else
{
$this->db->select($this->config_table,'config_value',array(
'config_app'=>'phpgwapi',
'config_name'=>'system_charset'
),__LINE__,__FILE__);
if ($this->db->next_record())
{
$this->system_charset = $this->db->f(0);
}
}
// load multi-byte-string-extension if needed, and set its internal encodeing to your system_charset
if ($this->system_charset && substr($this->system_charset,0,9) != 'iso-8859-1')
{
if ($this->mbstring = extension_loaded('mbstring') || @dl(PHP_SHLIB_PREFIX.'mbstring.'.PHP_SHLIB_SUFFIX))
{
ini_set('mbstring.internal_encoding',$this->system_charset);
if (ini_get('mbstring.func_overload') < 7)
{
if ($warnings)
{
echo "<p>Warning: Please set <b>mbstring.func_overload = 7</b> in your php.ini for useing <b>$this->system_charset</b> as your charset !!!</p>\n";
}
}
}
else
{
if ($warnings)
{
echo "<p>Warning: Please get and/or enable the <b>mbstring extension</b> in your php.ini for useing <b>$this->system_charset</b> as your charset, we are defaulting to <b>iconv</b> for now !!!</p>\n";
}
}
}
}
/*
@function charset
@abstract returns the charset to use (!$lang) or the charset of the lang-files or $lang
*/
function charset($lang=False)
{
if ($lang)
{
if (!isset($this->charsets[$lang]))
{
$this->db->select($this->lang_table,'content',array(
'lang' => $lang,
'message_id'=> 'charset',
'app_name' => 'common',
),__LINE__,__FILE__);
$this->charsets[$lang] = $this->db->next_record() ? strtolower($this->db->f(0)) : 'iso-8859-1';
}
return $this->charsets[$lang];
}
if ($this->system_charset) // do we have a system-charset ==> return it
{
return $this->system_charset;
}
// if no translations are loaded (system-startup) use a default, else lang('charset')
return !is_array(@$GLOBALS['lang']) ? 'iso-8859-1' : strtolower($this->translate('charset'));
}
function init()
{
// post-nuke and php-nuke are using $GLOBALS['lang'] too
// but not as array!
// this produces very strange results
if (!is_array(@$GLOBALS['lang']))
{
$GLOBALS['lang'] = array();
}
if ($GLOBALS['phpgw_info']['user']['preferences']['common']['lang'])
{
$this->userlang = $GLOBALS['phpgw_info']['user']['preferences']['common']['lang'];
}
$this->add_app('common');
if (!count($GLOBALS['lang']))
{
$this->userlang = 'en';
$this->add_app('common');
}
$this->add_app($GLOBALS['phpgw_info']['flags']['currentapp']);
}
/*!
@function translate
@abstract translates a phrase and evtl. substitute some variables
@returns the translation
*/
function translate($key, $vars=false, $not_found='*' )
{
if (!is_array(@$GLOBALS['lang']) || !count($GLOBALS['lang']))
{
$this->init();
}
$ret = $key.$not_found; // save key if we dont find a translation
if (isset($GLOBALS['lang'][$key]))
{
$ret = $GLOBALS['lang'][$key];
}
else
{
$new_key = strtolower(trim(substr($key,0,MAX_MESSAGE_ID_LENGTH)));
if (isset($GLOBALS['lang'][$new_key]))
{
// we save the original key for performance
$ret = $GLOBALS['lang'][$key] = $GLOBALS['lang'][$new_key];
}
}
if (is_array($vars) && count($vars))
{
if (count($vars) > 1)
{
$ret = str_replace($this->placeholders,$vars,$ret);
}
else
{
$ret = str_replace('%1',$vars[0],$ret);
}
}
return $ret;
}
/*!
@function add_app
@abstract adds translations for an application from the database to the lang-array
@syntax add_app($app,$lang=False)
@param $app name of the application to add (or 'common' for the general translations)
@param $lang 2-char code of the language to use or False if the users language should be used
*/
function add_app($app,$lang=False)
{
$lang = $lang ? $lang : $this->userlang;
if (!isset($this->loaded_apps[$app]) || $this->loaded_apps[$app] != $lang)
{
if ($app == 'setup') return $this->add_setup($lang);
$this->db->select($this->lang_table,'message_id,content',array(
'lang' => $lang,
'app_name' => $app,
),__LINE__,__FILE__);
while ($this->db->next_record())
{
$GLOBALS['lang'][strtolower ($this->db->f('message_id'))] = $this->db->f('content');
}
$this->loaded_apps[$app] = $lang;
}
}
/**
* Adds setup's translations, they are not in the DB!
*/
function add_setup($lang)
{
$fn = PHPGW_SERVER_ROOT.'/setup/lang/phpgw_' . $lang . '.lang';
if (!file_exists($fn))
{
$fn = PHPGW_SERVER_ROOT.'/setup/lang/phpgw_en.lang';
}
if (file_exists($fn))
{
$fp = fopen($fn,'r');
while ($data = fgets($fp,8000))
{
// explode with "\t" and removing "\n" with str_replace, needed to work with mbstring.overload=7
list($message_id,,,$content) = explode("\t",$data);
$phrases[strtolower(trim($message_id))] = str_replace("\n",'',$content);
}
fclose($fp);
foreach($phrases as $message_id => $content)
{
$GLOBALS['lang'][$message_id] = $this->convert($content,$phrases['charset']);
}
}
$this->loaded_apps['setup'] = $lang;
}
/*!
@function get_installed_langs
@abstract returns a list of installed langs
@returns array with 2-character lang-code as key and descriptiv lang-name as data
*/
function get_installed_langs()
{
if (!is_array($this->langs))
{
$this->db->query("SELECT DISTINCT l.lang,lx.lang_name FROM phpgw_lang l,phpgw_languages lx WHERE l.lang = lx.lang_id",__LINE__,__FILE__);
if (!$this->db->num_rows())
{
return False;
}
while ($this->db->next_record())
{
$this->langs[$this->db->f('lang')] = $this->db->f('lang_name');
}
foreach($this->langs as $lang => $name)
{
$this->langs[$lang] = $this->translate($name,False,'');
}
}
return $this->langs;
}
/*!
@function get_installed_charsets
@abstract returns a list of installed charsets
@returns array with charset as key and comma-separated list of langs useing the charset as data
*/
function get_installed_charsets()
{
if (!is_array($this->charsets))
{
$distinct = 'DISTINCT';
switch($this->db->Type)
{
case 'sapdb': case 'maxdb':
case 'mssql':
$distinct = ''; // cant use distinct on text columns (l.content is text)
}
$this->db->query("SELECT $distinct l.lang,lx.lang_name,l.content AS charset FROM phpgw_lang l,phpgw_languages lx WHERE l.lang = lx.lang_id AND l.message_id='charset'",__LINE__,__FILE__);
if (!$this->db->num_rows())
{
return False;
}
while ($this->db->next_record())
{
$data = &$this->charsets[$charset = strtolower($this->db->f('charset'))];
$lang = $this->db->f('lang_name').' ('.$this->db->f('lang').')';
if ($distinct || strstr($data,$lang) === false)
{
$data .= ($data ? ', ' : $charset.': ').$lang;
}
}
}
return $this->charsets;
}
/*!
@function convert
@abstract converts a string $data from charset $from to charset $to
@syntax convert($data,$from=False,$to=False)
@param $data string or array of strings to convert
@param $from charset $data is in or False if it should be detected
@param $to charset to convert to or False for the system-charset
@returns the converted string
*/
function convert($data,$from=False,$to=False)
{
if (is_array($data))
{
foreach($data as $key => $str)
{
$ret[$key] = $this->convert($str,$from,$to);
}
return $ret;
}
if ($from)
{
$from = strtolower($from);
}
if ($to)
{
$to = strtolower($to);
}
if (!$from)
{
$from = $this->mbstring ? strtolower(mb_detect_encoding($data)) : 'iso-8859-1';
if($from == 'ascii')
{
$from = 'iso-8859-1';
}
//echo "<p>autodetected charset of '$data' = '$from'</p>\n";
}
/*
php does not seem to support gb2312
but seems to be able to decode it as EUC-CN
*/
switch($from)
{
case 'gb2312':
case 'gb18030':
$from = 'EUC-CN';
break;
case 'us-ascii':
case 'macroman':
$from = 'iso-8859-1';
break;
}
if (!$to)
{
$to = $this->charset();
}
if ($from == $to || !$from || !$to || !$data)
{
return $data;
}
if ($from == 'iso-8859-1' && $to == 'utf-8')
{
return utf8_encode($data);
}
if ($to == 'iso-8859-1' && $from == 'utf-8')
{
return utf8_decode($data);
}
if ($this->mbstring)
{
return @mb_convert_encoding($data,$to,$from);
}
if(function_exists('iconv'))
{
if($from=='EUC-CN') $from='gb18030';
// the above is to workaround patch #962307
// if using EUC-CN, for iconv it strickly follow GB2312 and fail
// in an email on the first Traditional/Japanese/Korean character,
// but in reality when people send mails in GB2312, UMA mostly use
// extended GB13000/GB18030 which allow T/Jap/Korean characters.
if (($data = iconv($from,$to,$data)))
{
return $data;
}
}
#die("<p>Can't convert from charset '$from' to '$to' without the <b>mbstring extension</b> !!!</p>");
// this is not good, not convert did succed
return $data;
}
/*!
@function install_langs
@abstract installs translations for the selected langs into the database
@syntax install_langs($langs,$upgrademethod='dumpold')
@param $langs array of langs to install (as data NOT keys (!))
@param $upgrademethod 'dumpold' (recommended & fastest), 'addonlynew' languages, 'addmissing' phrases
*/
function install_langs($langs,$upgrademethod='dumpold',$only_app=False)
{
@set_time_limit(0); // we might need some time
//echo "<p>translation_sql::install_langs(".print_r($langs,true).",'$upgrademthod','$only_app')</p>\n";
if (!isset($GLOBALS['phpgw_info']['server']) && $upgrademethod != 'dumpold')
{
$this->db->select($this->config_table,'config_value',array(
'config_app' => 'phpgwapi',
'config_name' => 'lang_ctimes',
),__LINE__,__FILE__);
if ($this->db->next_record())
{
$GLOBALS['phpgw_info']['server']['lang_ctimes'] = unserialize(stripslashes($this->db->f('config_value')));
}
}
if (!is_array($langs) || !count($langs))
{
return;
}
$this->db->transaction_begin();
if ($upgrademethod == 'dumpold')
{
// dont delete the custom main- & loginscreen messages every time
$this->db->delete($this->lang_table,array("app_name!='mainscreen'","app_name!='loginscreen'"),__LINE__,__FILE__);
//echo '<br>Test: dumpold';
$GLOBALS['phpgw_info']['server']['lang_ctimes'] = array();
}
foreach($langs as $lang)
{
//echo '<br>Working on: ' . $lang;
$addlang = False;
if ($upgrademethod == 'addonlynew')
{
//echo "<br>Test: addonlynew - select count(*) from phpgw_lang where lang='".$lang."'";
$this->db->select($this->lang_table,'COUNT(*)',array(
'lang' => $lang,
),__LINE__,__FILE__);
$this->db->next_record();
if ($this->db->f(0) == 0)
{
//echo '<br>Test: addonlynew - True';
$addlang = True;
}
}
if ($addlang && $upgrademethod == 'addonlynew' || $upgrademethod != 'addonlynew')
{
//echo '<br>Test: loop above file()';
if (!is_object($GLOBALS['phpgw_setup']))
{
$GLOBALS['phpgw_setup'] = CreateObject('phpgwapi.setup');
$GLOBALS['phpgw_setup']->db = $this->db;
}
$setup_info = $GLOBALS['phpgw_setup']->detection->get_versions();
$setup_info = $GLOBALS['phpgw_setup']->detection->get_db_versions($setup_info);
$raw = array();
$apps = $only_app ? array($only_app) : array_keys($setup_info);
// Visit each app/setup dir, look for a phpgw_lang file
foreach($apps as $app)
{
$appfile = PHPGW_SERVER_ROOT . SEP . $app . SEP . 'setup' . SEP . 'phpgw_' . strtolower($lang) . '.lang';
//echo '<br>Checking in: ' . $app;
if($GLOBALS['phpgw_setup']->app_registered($app) && file_exists($appfile))
{
//echo '<br>Including: ' . $appfile;
$lines = file($appfile);
foreach($lines as $line)
{
// explode with "\t" and removing "\n" with str_replace, needed to work with mbstring.overload=7
list($message_id,$app_name,,$content) = $_f_buffer = explode("\t",$line);
$content=str_replace(array("\n","\r"),'',$content);
if( count($_f_buffer) != 4 )
{
$line_display = str_replace(array("\t","\n"),
array("<font color='red'><b>\\t</b></font>","<font color='red'><b>\\n</b></font>"), $line);
$this->line_rejected[] = array(
'appfile' => $appfile,
'line' => $line_display,
);
}
$message_id = substr(strtolower(chop($message_id)),0,MAX_MESSAGE_ID_LENGTH);
$app_name = chop($app_name);
$raw[$app_name][$message_id] = $content;
}
$GLOBALS['phpgw_info']['server']['lang_ctimes'][$lang][$app] = filectime($appfile);
}
}
$charset = strtolower(@$raw['common']['charset'] ? $raw['common']['charset'] : $this->charset($lang));
//echo "<p>lang='$lang', charset='$charset', system_charset='$this->system_charset')</p>\n";
//echo "<p>raw($lang)=<pre>".print_r($raw,True)."</pre>\n";
foreach($raw as $app_name => $ids)
{
foreach($ids as $message_id => $content)
{
if ($this->system_charset)
{
$content = $this->convert($content,$charset,$this->system_charset);
}
$addit = False;
//echo '<br>APPNAME:' . $app_name . ' PHRASE:' . $message_id;
if ($upgrademethod == 'addmissing')
{
//echo '<br>Test: addmissing';
$this->db->select($this->lang_table,"content,CASE WHEN app_name IN ('common') THEN 1 ELSE 0 END AS in_api",array(
'message_id' => $message_id,
'lang' => $lang,
$this->db->expression($this->lang_table,'(',array(
'app_name' => $app_name
)," OR app_name='common') ORDER BY in_api DESC")),__LINE__,__FILE__);
if (!($row = $this->db->row(True)))
{
$addit = True;
}
else
{
if ($row['in_api']) // same phrase is in the api
{
$addit = $row['content'] != $content; // only add if not identical
}
$row2 = $this->db->row(True);
if (!$row['in_api'] || $app_name=='common' || $row2) // phrase is alread in the db
{
$addit = $content != ($row2 ? $row2['content'] : $row['content']);
if ($addit) // if we want to add/update it ==> delete it
{
$this->db->delete($this->lang_table,array(
'message_id' => $message_id,
'lang' => $lang,
'app_name' => $app_name,
),__LINE__,__FILE__);
}
}
}
}
if ($addit || $upgrademethod == 'addonlynew' || $upgrademethod == 'dumpold')
{
if($message_id && $content)
{
// echo "<br>adding - insert into phpgw_lang values ('$message_id','$app_name','$lang','$content')";
$result = $this->db->insert($this->lang_table,array(
'message_id' => $message_id,
'app_name' => $app_name,
'lang' => $lang,
'content' => $content,
),False,__LINE__,__FILE__);
if ((int)$result <= 0)
{
echo "<br>Error inserting record: phpgw_lang values ('$message_id','$app_name','$lang','$content')";
}
}
}
}
}
}
}
$this->db->transaction_commit();
// update the ctimes of the installed langsfiles for the autoloading of the lang-files
//
$config = CreateObject('phpgwapi.config.save_value');
$config->save_value('lang_ctimes',$GLOBALS['phpgw_info']['server']['lang_ctimes'],'phpgwapi');
}
/*!
@function autolaod_changed_langfiles
@abstract re-loads all (!) langfiles if one langfile for the an app and the language of the user has changed
*/
function autoload_changed_langfiles()
{
//echo "<h1>check_langs()</h1>\n";
if ($GLOBALS['phpgw_info']['server']['lang_ctimes'] && !is_array($GLOBALS['phpgw_info']['server']['lang_ctimes']))
{
$GLOBALS['phpgw_info']['server']['lang_ctimes'] = unserialize($GLOBALS['phpgw_info']['server']['lang_ctimes']);
}
//_debug_array($GLOBALS['phpgw_info']['server']['lang_ctimes']);
$lang = $GLOBALS['phpgw_info']['user']['preferences']['common']['lang'];
$apps = $GLOBALS['phpgw_info']['user']['apps'];
$apps['phpgwapi'] = True; // check the api too
foreach($apps as $app => $data)
{
$fname = PHPGW_SERVER_ROOT . "/$app/setup/phpgw_$lang.lang";
if (file_exists($fname))
{
$ctime = filectime($fname);
/* This is done to avoid string offset error at least in php5 */
$tmp = $GLOBALS['phpgw_info']['server']['lang_ctimes'][$lang];
$ltime = (int)$tmp[$app];
unset($tmp);
//echo "checking lang='$lang', app='$app', ctime='$ctime', ltime='$ltime'<br>\n";
if ($ctime != $ltime)
{
// update all langs
$installed = $this->get_installed_langs();
//echo "<p>install_langs(".print_r($installed,True).")</p>\n";
$this->install_langs($installed ? array_keys($installed) : array());
break;
}
}
}
}
/* Following functions are called for app (un)install */
/*!
@function get_langs
@abstract return array of installed languages, e.g. array('de','en')
*/
function get_langs($DEBUG=False)
{
if($DEBUG)
{
echo '<br>get_langs(): checking db...' . "\n";
}
if (!$this->langs)
{
$this->get_installed_langs();
}
return $this->langs ? array_keys($this->langs) : array();
}
/*!
@function drop_langs
@abstract delete all lang entries for an application, return True if langs were found
@param $appname app_name whose translations you want to delete
*/
function drop_langs($appname,$DEBUG=False)
{
if($DEBUG)
{
echo '<br>drop_langs(): Working on: ' . $appname;
}
$this->db->select($this->lang_table,'COUNT(message_id)',array(
'app_name' => $appname
),__LINE__,__FILE__);
$this->db->next_record();
if($this->db->f(0))
{
$this->db->delete($this->lang_table,array(
'app_name' => $appname
),__LINE__,__FILE__);
return True;
}
return False;
}
/*!
@function add_langs
@abstract process an application's lang files, calling get_langs() to see what langs the admin installed already
@param $appname app_name of application to process
*/
function add_langs($appname,$DEBUG=False,$force_langs=False)
{
$langs = $this->get_langs($DEBUG);
if(is_array($force_langs))
{
foreach($force_langs as $lang)
{
if (!in_array($lang,$langs))
{
$langs[] = $lang;
}
}
}
if($DEBUG)
{
echo '<br>add_langs(): chose these langs: ';
_debug_array($langs);
}
$this->install_langs($langs,'addmissing',$appname);
}
}
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