| 1 | <?php
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    | 2 | 
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    | 3 | /**
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    | 4 |  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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    | 5 |  *
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    | 6 |  * This program is free software: you can redistribute it and/or modify
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    | 7 |  * it under the terms of the GNU General Public License as published by
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    | 8 |  * the Free Software Foundation, either version 3 of the License, or
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    | 9 |  * (at your option) any later version.
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    | 10 |  *
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    | 11 |  * This program is distributed in the hope that it will be useful,
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    | 12 |  * but WITHOUT ANY WARRANTY; without even the implied warranty of
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    | 13 |  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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    | 14 |  * GNU General Public License for more details.
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    | 15 |  *
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    | 16 |  * You should have received a copy of the GNU General Public License
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    | 17 |  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
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    | 18 |  */
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    | 19 | 
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    | 20 | /**
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    | 21 |  * TranslationTable.php
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    | 22 |  *
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    | 23 |  * @category     Core
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    | 24 |  * @package      Core_Translation
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    | 25 |  * @copyright    Werner v.d.Decken <wkl@isteam.de>
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    | 26 |  * @author       Werner v.d.Decken <wkl@isteam.de>
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    | 27 |  * @license      http://www.gnu.org/licenses/gpl.html   GPL License
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    | 28 |  * @version      0.0.1
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    | 29 |  * @revision     $Revision: 2070 $
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    | 30 |  * @link         $HeadURL: svn://isteam.dynxs.de/wb-archiv/branches/2.8.x/wb/framework/TranslationTable.php $
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    | 31 |  * @lastmodified $Date: 2014-01-03 02:21:42 +0100 (Fri, 03 Jan 2014) $
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    | 32 |  * @since        File available since 12.01.2013
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    | 33 |  */
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    | 34 | class TranslationTable {
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    | 35 | 
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    | 36 | 	protected $aTranslations = array();
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    | 37 | 	protected $aLanguages    = array();
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    | 38 | 	protected $sSystemLang   = 'en';
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    | 39 | 	protected $sDefaultLang  = 'en';
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    | 40 | 	protected $sUserLang     = 'en';
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    | 41 | 	protected $sAddon        = '';
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    | 42 | 	protected $oReg          = null;
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    | 43 | 	protected $sTempPath     = '';
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    | 44 | 	protected $iDirMode      = 0777;
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    | 45 | 	protected $bUseCache     = true;
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    | 46 | 
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    | 47 | 	/**
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    | 48 |  * Constructor
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    | 49 |  * @param string relative pathname of the Addon (i.e. '' || 'modules/myAddon/')
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    | 50 |  * @param string System language code ( 2*3ALPHA[[_2ALPHA]_2*4ALNUM] )
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    | 51 |  * @param string Default language code ( 2*3ALPHA[[_2ALPHA]_2*4ALNUM] )
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    | 52 |  * @param string User language code ( 2*3ALPHA[[_2ALPHA]_2*4ALNUM] )
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    | 53 |  * @param boolean true if caching is enabled
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    | 54 |  */	
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    | 55 | 	public function __construct($sAddon, 
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    | 56 | 	                            $sSystemLanguage, 
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    | 57 | 	                            $sDefaultLanguage, 
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    | 58 | 	                            $sUserLanguage,
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    | 59 | 	                            $bUseCache = true)
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    | 60 | 	{
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    | 61 | 		$this->bUseCache             = $bUseCache;
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    | 62 | 		$this->sSystemLang           = $sSystemLanguage;
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    | 63 | 		$this->sDefaultLang          = $sDefaultLanguage;
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    | 64 | 		$this->sUserLang             = $sUserLanguage;
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    | 65 | 		$this->sAddon                = $sAddon;
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    | 66 | 		if(class_exists('WbAdaptor')) {
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    | 67 | 			$this->sTempPath         = WbAdaptor::getInstance()->TempPath;
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    | 68 | 			$this->iDirMode          = WbAdaptor::getInstance()->OctalDirMode;
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    | 69 | 		}else {
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    | 70 | 			$this->sTempPath         = dirname(dirname(__FILE__)).'/temp/';
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    | 71 | 		}
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    | 72 | 		$this->aLanguages['system']  = array();
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    | 73 | 		$this->aLanguages['default'] = array();
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    | 74 | 		$this->aLanguages['user']    = array();
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    | 75 | 	}
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    | 76 | /**
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    | 77 |  * Load language definitions
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    | 78 |  * @return TranslationTable a valid translation table object
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    | 79 |  * @throws TranslationException
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    | 80 |  */	
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    | 81 | 	public function load($sAdaptor)
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    | 82 | 	{
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    | 83 | 		$sCacheFile = '';
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    | 84 | 		if($this->bUseCache) {
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    | 85 | 			$sCachePath	= $this->getCachePath();
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    | 86 | 			$sCacheFile = $sCachePath.md5($this->sAddon.$this->sSystemLang.
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    | 87 | 										  $this->sDefaultLang.$this->sUserLang).'.php';
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    | 88 | 		}
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    | 89 | 		if($this->bUseCache && is_readable($sCacheFile)) {
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    | 90 | 				$this->aTranslations = $this->loadCacheFile($sCacheFile);
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    | 91 | 		}else {
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    | 92 | 			$bLanguageFound = false;
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    | 93 | 			if(!class_exists($sAdaptor)) {
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    | 94 | 				throw new TranslationException('unable to load adaptor: '.$sAdaptor);
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    | 95 | 			}
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    | 96 | 			$oAdaptor= new $sAdaptor($this->sAddon);
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    | 97 | 			if(!$oAdaptor instanceof TranslateAdaptorInterface) {
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    | 98 | 				$sMsg = 'Class ['.$sAdaptor.'] does not implement the '
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    | 99 | 				      . 'interface [TranslateAdaptorInterface]';
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    | 100 | 				throw new TranslationException($sMsg);
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    | 101 | 			}
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    | 102 | 		// load system language first
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    | 103 | 			if(($aResult = $this->loadLanguageSegments($this->sSystemLang, $oAdaptor)) !== false) {
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    | 104 | 			// load system language
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    | 105 | 				$this->aLanguages['system'] = $aResult;
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    | 106 | 				$bLanguageFound = true;
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    | 107 | 			}
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    | 108 | 			if($this->sDefaultLang != $this->sSystemLang) {
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    | 109 | 			// load default language if it's not equal system language
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    | 110 | 				if(($aResult = $this->loadLanguageSegments($this->sDefaultLang, $oAdaptor)) !== false) {
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    | 111 | 					$this->aLanguages['default'] = $aResult;
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    | 112 | 					$bLanguageFound = true;
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    | 113 | 				}
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    | 114 | 			}else {
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    | 115 | 			// copy system language
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    | 116 | 				$this->aLanguages['default'] = $this->aLanguages['system'];
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    | 117 | 			}
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    | 118 | 			if($this->sUserLang != $this->sDefaultLang 
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    | 119 | 			   && $this->sUserLang != $this->sSystemLang) {
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    | 120 | 			// load user language if it's not equal default language or system language
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    | 121 | 				if(($aResult = $this->loadLanguageSegments($this->sUserLang, $oAdaptor)) !== false) {
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    | 122 | 					$this->aLanguages['user'] = $aResult;
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    | 123 | 					$bLanguageFound = true;
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    | 124 | 				}
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    | 125 | 			}elseif($this->sUserLang == $this->sDefaultLang) {
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    | 126 | 			// copy default language
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    | 127 | 				$this->aLanguages['user'] = $this->aLanguages['default'];
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    | 128 | 			}elseif($this->sUserLang == $this->sSystemLang) {
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    | 129 | 			// copy system language
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    | 130 | 				$this->aLanguages['user'] = $this->aLanguages['system'];
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    | 131 | 			}
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    | 132 | 			if($bLanguageFound) {
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    | 133 | 			// copy user into default if default is missing
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    | 134 | 				if(sizeof($this->aLanguages['user']) && !sizeof($this->aLanguages['default'])) {
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    | 135 | 					$this->aLanguages['default'] = $this->aLanguages['user'];
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    | 136 | 				}
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    | 137 | 			// copy default into system if system is missing
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    | 138 | 				if(sizeof($this->aLanguages['default']) && !sizeof($this->aLanguages['system'])) {
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    | 139 | 					$this->aLanguages['system'] = $this->aLanguages['default'];
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    | 140 | 				}
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    | 141 | 			}
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    | 142 | 		// if absolutely no requested language found, simply get the first available language
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    | 143 | 			if(!$bLanguageFound) {
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    | 144 | 				$sFirstLanguage = $oAdaptor->findFirstLanguage();
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    | 145 | 			// load first found language if its not already loaded
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    | 146 | 				if(($aResult = $this->loadLanguageSegments($sFirstLanguage, $oAdaptor)) !== false) {
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    | 147 | 					$this->aLanguages['system'] = $aResult;
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    | 148 | 					$bLanguageFound = true;
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    | 149 | 				}
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    | 150 | 			}
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    | 151 | 			if($bLanguageFound) {
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    | 152 | 				$this->aTranslations = array_merge($this->aTranslations,
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    | 153 | 				                                    $this->aLanguages['system'],
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    | 154 | 				                                    $this->aLanguages['default'],
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    | 155 | 				                                    $this->aLanguages['user']);
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    | 156 | 				$this->writeCacheFile($sCacheFile);
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    | 157 | 			}
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    | 158 | 		}
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    | 159 | 		return $this;
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    | 160 | 	}
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    | 161 | /**
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    | 162 |  * Is key available
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    | 163 |  * @param string Language key
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    | 164 |  * @return bool
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    | 165 |  */
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    | 166 | 	public function __isset($sKey)
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    | 167 | 	{
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    | 168 | 		return isset($this->aTranslations[$sKey]);
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    | 169 | 	}
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    | 170 | /**
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    | 171 |  * Get translation text
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    | 172 |  * @param string Language key
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    | 173 |  * @return string Translation text
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    | 174 |  */	
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    | 175 | 	public function __get($sKey)
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    | 176 | 	{
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    | 177 | 		if(isset($this->aTranslations[$sKey])) {
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    | 178 | 			return $this->aTranslations[$sKey];
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    | 179 | 		}else {
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    | 180 | 			return '';
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    | 181 | 		}
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    | 182 | 	}
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    | 183 | /**
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    | 184 |  * returns the whoole translation array
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    | 185 |  * @return array
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    | 186 |  * @deprecated for backward compatibility only. Will be removed shortly
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    | 187 |  */	
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    | 188 | 	public function getArray()
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    | 189 | 	{
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    | 190 | 		$aRetval = (is_array($this->aTranslations) ? $this->aTranslations : array());
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    | 191 | 		return $aRetval;
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    | 192 | 	}
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    | 193 | /**
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    | 194 |  * Load Language
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    | 195 |  * @param string Language Code
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    | 196 |  * @param object Adaptor object
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    | 197 |  * @return bool|array
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    | 198 |  */
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    | 199 | 	protected function loadLanguageSegments($sLangCode, $oAdaptor)
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    | 200 | 	{
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    | 201 | 		$aTranslations = array();
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    | 202 | 		// sanitize the language code
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    | 203 | 		$aLangCode = explode('_', preg_replace('/[^a-z0-9]/i', '_', strtolower($sLangCode)));
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    | 204 | 		$sConcatedLang = '';
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    | 205 | 		foreach($aLangCode as $sLang)
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    | 206 | 		{ // iterate all segments of the language code
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    | 207 | 			$sConcatedLang .= ($sConcatedLang == '' ? '' :  '_').$sLang;
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    | 208 | 			if( ($aResult = $oAdaptor->loadLanguage($sConcatedLang)) !== false ) {
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    | 209 | 				$aTranslations = array_merge($aTranslations, $aResult);
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    | 210 | 			}
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    | 211 | 		}
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    | 212 | 		return (sizeof($aTranslations) > 0 ? $aTranslations : false);
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    | 213 | 	}
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    | 214 | /**
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    | 215 |  * getCachePath
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    | 216 |  * @return string a valid path for caching or null on error
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    | 217 |  */
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    | 218 | 	protected function getCachePath()
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    | 219 | 	{
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    | 220 | 		$sCachePath = $this->sTempPath.__CLASS__.'/cache/';
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    | 221 | 		if(!file_exists($sCachePath) && is_writeable($this->sTempPath)) {
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    | 222 | 			$iOldUmask = umask(0); 
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    | 223 | 			mkdir($sCachePath, $this->iDirMode, true);
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    | 224 | 			umask($iOldUmask); 
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    | 225 | 		}
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    | 226 | 		if(is_writable($sCachePath)) {
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    | 227 | 			return $sCachePath;
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    | 228 | 		}else {
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    | 229 | 			return null;
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    | 230 | 		}
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    | 231 | 	}
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    | 232 | /**
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    | 233 |  * load cached translation table
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    | 234 |  * @param string path/name of the cachefile
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    | 235 |  * @return array list of translations
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    | 236 |  */	
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    | 237 | 	protected function loadCacheFile($sCacheFile)
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    | 238 | 	{
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    | 239 | 		$aTranslation = array();
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    | 240 | 		include($sCacheFile);
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    | 241 | 		return $aTranslation;
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    | 242 | 	}
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    | 243 | /**
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    | 244 |  * Write cache from translation
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    | 245 |  * @param string path/name of the cachefile
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    | 246 |  */	
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    | 247 | 	protected function writeCacheFile($sCacheFile)
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    | 248 | 	{
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    | 249 | 		if($this->bUseCache) {
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    | 250 | 			$sOutput = '<?php'."\n".'/* autogenerated cachefile */'."\n";
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    | 251 | 			while (list($key, $value) = each($this->aTranslations)) {
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    | 252 | 				$sOutput .= '$aTranslation[\''.$key.'\'] = \''.addslashes($value).'\';'."\n";
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    | 253 | 			}
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    | 254 | 			file_put_contents($sCacheFile, $sOutput, LOCK_EX);
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    | 255 | 		}
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    | 256 | 	}
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    | 257 | } // end of class TranslationTable
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