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File name : LanguageManager.php

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<?php
/**
 *
 * SugarCRM Community Edition is a customer relationship management program developed by
 * SugarCRM, Inc. Copyright (C) 2004-2013 SugarCRM Inc.
 *
 * SuiteCRM is an extension to SugarCRM Community Edition developed by SalesAgility Ltd.
 * Copyright (C) 2011 - 2018 SalesAgility Ltd.
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Affero General Public License version 3 as published by the
 * Free Software Foundation with the addition of the following permission added
 * to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED WORK
 * IN WHICH THE COPYRIGHT IS OWNED BY SUGARCRM, SUGARCRM DISCLAIMS THE WARRANTY
 * OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
 *
 * 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 Affero General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Affero General Public License along with
 * this program; if not, see http://www.gnu.org/licenses or write to the Free
 * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 *
 * You can contact SugarCRM, Inc. headquarters at 10050 North Wolfe Road,
 * SW2-130, Cupertino, CA 95014, USA. or at email address contact@sugarcrm.com.
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License version 3.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
 * these Appropriate Legal Notices must retain the display of the "Powered by
 * SugarCRM" logo and "Supercharged by SuiteCRM" logo. If the display of the logos is not
 * reasonably feasible for technical reasons, the Appropriate Legal Notices must
 * display the words "Powered by SugarCRM" and "Supercharged by SuiteCRM".
 */

if (!defined('sugarEntry') || !sugarEntry) {
    die('Not A Valid Entry Point');
}

require_once __DIR__.'/translated_prefix.php';
/**
 * Language files management
 * @api
 */
class LanguageManager
{

/**
     * Called from VardefManager to allow for caching a lang file for a module
     * @param module - the name of the module we are working with
     * @param templates - an array of templates this module uses
     */
    public static function createLanguageFile($module, $templates=array('default'), $refresh = false)
    {
        global $mod_strings, $current_language;
        if (inDeveloperMode() || !empty($_SESSION['developerMode'])) {
            $refresh = true;
        }
        $temp_mod_strings = $mod_strings;
        $lang = $current_language;
        if (empty($lang)) {
            $lang = $GLOBALS['sugar_config']['default_language'];
        }
        static $createdModules = array();
        if (empty($createdModules[$module]) && ($refresh || !file_exists(sugar_cached('modules/').$module.'/language/'.$lang.'.lang.php'))) {
            $loaded_mod_strings = array();
            $loaded_mod_strings = LanguageManager::loadTemplateLanguage($module, $templates, $lang, $loaded_mod_strings);
            $createdModules[$module] = true;
            LanguageManager::refreshLanguage($module, $lang, $loaded_mod_strings);
        }
    }

/**
     * Load the module  tempalte lauguage files
     * @param module - the name of the module we are working with
     * @param templates - an array of templates this module uses
     * @param lang - current language this module use
     * @param loaded_mod_strings - the string that we will add the module template language  into
     */
    public static function loadTemplateLanguage($module, $templates, $lang, $loaded_mod_strings)
    {
        $templates = array_reverse($templates);
        foreach ($templates as $template) {
            $temp = LanguageManager::addTemplate($module, $lang, $template);
            $loaded_mod_strings = sugarLangArrayMerge($loaded_mod_strings, $temp);
        }
        return $loaded_mod_strings;
    }

public static function addTemplate($module, $lang, $template)
    {
        if ($template == 'default') {
            $template = 'basic';
        }
        $templates = array();
        $fields = array();
        if (empty($templates[$template])) {
            $path = 'include/SugarObjects/templates/' . $template . '/language/'.$lang.'.lang.php';
            if (file_exists($path)) {
                require($path);
                $templates[$template] = $mod_strings;
            } else {
                $path = 'include/SugarObjects/implements/' . $template . '/language/'.$lang.'.lang.php';
                if (file_exists($path)) {
                    require($path);
                    $templates[$template] = $mod_strings;
                }
            }
        }
        if (!empty($templates[$template])) {
            return $templates[$template];
        }
    }

public static function saveCache($module, $lang, $loaded_mod_strings, $additonal_objects= array())
    {
        if (empty($lang)) {
            $lang = $GLOBALS['sugar_config']['default_language'];
        }

$file = create_cache_directory('modules/' . $module . '/language/'.$lang.'.lang.php');
        write_array_to_file('mod_strings', $loaded_mod_strings, $file);
        include($file);

// put the item in the sugar cache.
        $key = self::getLanguageCacheKey($module, $lang);
        sugar_cache_put($key, $loaded_mod_strings);
    }

/**
     * clear out the language cache.
     * @param string module_dir the module_dir to clear, if not specified then clear
     *                      clear language cache for all modules.
     * @param string lang the name of the object we are clearing this is for sugar_cache
     */
    public static function clearLanguageCache($module_dir = '', $lang = '')
    {
        if (empty($lang)) {
            $languages = array_keys($GLOBALS['sugar_config']['languages']);
        } else {
            $languages = array($lang);
        }
        //if we have a module name specified then just remove that language file
        //otherwise go through each module and clean up the language
        if (!empty($module_dir)) {
            foreach ($languages as $clean_lang) {
                LanguageManager::_clearCache($module_dir, $clean_lang);
            }
        } else {
            $cache_dir = sugar_cached('modules/');
            if (file_exists($cache_dir) && $dir = @opendir($cache_dir)) {
                while (($entry = readdir($dir)) !== false) {
                    if ($entry == "." || $entry == "..") {
                        continue;
                    }
                    foreach ($languages as $clean_lang) {
                        LanguageManager::_clearCache($entry, $clean_lang);
                    }
                }
                closedir($dir);
            }
        }
    }

/**
     * PRIVATE function used within clearLanguageCache so we do not repeat logic
     * @param string module_dir the module_dir to clear
     * @param string lang the name of the language file we are clearing this is for sugar_cache
     */
    private static function _clearCache($module_dir, $lang = null)
    {
        if (!empty($module_dir) && !empty($lang)) {
            $file = sugar_cached('modules/').$module_dir.'/language/'.$lang.'.lang.php';
            if (file_exists($file)) {
                unlink($file);
                $key = self::getLanguageCacheKey($module_dir, $lang);
                sugar_cache_clear($key);
            }
        }
    }

/**
     * Given a module, search all of the specified locations, and any others as specified
     * in order to refresh the cache file
     *
     * @param string $module the given module we want to load the vardefs for
     * @param string $lang the given language we wish to load
     * @param array $additional_search_paths an array which allows a consumer to pass in additional vardef locations to search
     */
    public static function refreshLanguage($module, $lang, $loaded_mod_strings = array(), $additional_search_paths = null)
    {
        // Some of the vardefs do not correctly define dictionary as global.  Declare it first.
        $lang_paths = array(
            'modules/' . $module . '/language/' . $lang . '.lang.php',
            'modules/' . $module . '/language/' . $lang . '.lang.override.php',
            'custom/modules/' . $module . '/language/' . $lang . '.lang.php',
            'custom/modules/' . $module . '/Ext/Language/' . $lang . '.lang.ext.php',
        );

require_once 'ModuleInstall/ExtensionManager.php';
        SuiteCRM\ModuleInstall\ExtensionManager::compileExtensionFiles('Language', '.lang.ext.php', $lang);

#27023, if this module template language file was not attached , get the template from this module vardef cache file if exsits and load the template language files.
        static $createdModules;
        if (empty($createdModules[$module]) && isset($GLOBALS['beanList'][$module])) {
            $object = $GLOBALS['beanList'][$module];

if ($object == 'aCase') {
                $object = 'Case';
            }

if (!empty($GLOBALS["dictionary"][(string)$object]["templates"])) {
                $templates = $GLOBALS["dictionary"][(string)$object]["templates"];
                $loaded_mod_strings = LanguageManager::loadTemplateLanguage($module, $templates, $lang, $loaded_mod_strings);
                $createdModules[$module] = true;
            }
        }
        //end of fix #27023

// Add in additional search paths if they were provided.
        if (!empty($additional_search_paths) && is_array($additional_search_paths)) {
            $lang_paths = array_merge($lang_paths, $additional_search_paths);
        }

//search a predefined set of locations for the vardef files
        foreach ($lang_paths as $path) {
            if (file_exists($path)) {
                require($path);
                if (!empty($mod_strings)) {
                    if (function_exists('sugarArrayMergeRecursive')) {
                        $loaded_mod_strings = sugarArrayMergeRecursive($loaded_mod_strings, $mod_strings);
                    } else {
                        $loaded_mod_strings = sugarLangArrayMerge($loaded_mod_strings, $mod_strings);
                    }
                }
            }
        }

//great! now that we have loaded all of our vardefs.
        //let's go save them to the cache file.
        if (!empty($loaded_mod_strings)) {
            LanguageManager::saveCache($module, $lang, $loaded_mod_strings);
        }
    }

public static function loadModuleLanguage($module, $lang, $refresh=false)
    {
        //here check if the cache file exists, if it does then load it, if it doesn't
        //then call refreshVardef
        //if either our session or the system is set to developerMode then refresh is set to true

// Retrieve the vardefs from cache.
        $key = self::getLanguageCacheKey($module, $lang);

if (!$refresh) {
            $return_result = sugar_cache_retrieve($key);
            if (!empty($return_result) && is_array($return_result)) {
                return $return_result;
            }
        }

// Some of the vardefs do not correctly define dictionary as global.  Declare it first.
        $cachedfile = sugar_cached('modules/').$module.'/language/'.$lang.'.lang.php';
        if ($refresh || !file_exists($cachedfile)) {
            LanguageManager::refreshLanguage($module, $lang);
        }

//at this point we should have the cache/modules/... file
        //which was created from the refreshVardefs so let's try to load it.
        if (file_exists($cachedfile)) {
            global $mod_strings;

require $cachedfile;

// now that we hae loaded the data from disk, put it in the cache.
            if (!empty($mod_strings)) {
                sugar_cache_put($key, $mod_strings);
            }
            if (!empty($_SESSION['translation_mode'])) {
                $mod_strings = array_map('translated_prefix', $mod_strings);
            }
            return $mod_strings;
        }
    }

/**
     * Return the cache key for the module language definition
     *
     * @static
     * @param  $module
     * @param  $lang
     * @return string
     */
    public static function getLanguageCacheKey($module, $lang)
    {
        return "LanguageManager.$module.$lang";
    }

/**
     * Remove any cached js language strings.
     *
     * @static
     * @return void
     */
    public static function removeJSLanguageFiles()
    {
        $jsFiles = array();
        getFiles($jsFiles, sugar_cached('jsLanguage'));
        foreach ($jsFiles as $file) {
            unlink($file);
        }

if (empty($GLOBALS['sugar_config']['js_lang_version'])) {
            $GLOBALS['sugar_config']['js_lang_version'] = 1;
        } else {
            $GLOBALS['sugar_config']['js_lang_version'] += 1;
        }

write_array_to_file("sugar_config", $GLOBALS['sugar_config'], "config.php");
    }
}

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