public static function save_debug_info($y_area, $y_debug_token, $is_main)
 {
     //-- {{{SYNC-DEBUG-DATA}}}
     if ((string) SMART_FRAMEWORK_DEBUG_MODE != 'yes') {
         return false;
     }
     //end if
     //--
     if ((string) $y_area != 'idx' and (string) $y_area != 'adm') {
         return false;
     }
     //end if
     //--
     $y_debug_token = trim((string) $y_debug_token);
     if ((string) $y_debug_token == '') {
         return false;
     }
     //end if
     //--
     $the_dir = 'tmp/logs/' . Smart::safe_filename($y_area) . '/' . date('Y-m-d@H') . '-debug-data/' . Smart::safe_filename($y_debug_token) . '/';
     //-- #END# SYNC
     //--
     if ($is_main) {
         $the_file = $the_dir . 'debug-main.log';
     } else {
         $the_file = $the_dir . 'debug-sub-req-' . time() . '-' . SmartHashCrypto::sha1($_SERVER['REQUEST_URI']) . '.log';
     }
     //end if else
     //--
     //--
     if (!is_dir($the_dir)) {
         SmartFileSystem::dir_recursive_create($the_dir);
     }
     //end if
     //--
     if (is_dir($the_dir)) {
         if (is_writable($the_dir)) {
             //--
             $arr = array();
             //-- generate debug info if set to show optimizations
             SmartMarkersTemplating::registerOptimizationHintsToDebugLog();
             //-- generate debug info if set to show internals
             if (defined('SMART_FRAMEWORK_INTERNAL_DEBUG')) {
                 Smart::registerInternalCacheToDebugLog();
                 SmartFrameworkRegistry::registerInternalCacheToDebugLog();
                 SmartAuth::registerInternalCacheToDebugLog();
                 SmartHashCrypto::registerInternalCacheToDebugLog();
                 SmartUtils::registerInternalCacheToDebugLog();
                 SmartMarkersTemplating::registerInternalCacheToDebugLog();
             }
             //end if
             //--
             $dbg_stats = (array) SmartFrameworkRegistry::getDebugMsgs('stats');
             //--
             $arr['date-time'] = date('Y-m-d H:i:s O');
             $arr['debug-token'] = (string) $y_debug_token;
             $arr['is-request-main'] = $is_main;
             $arr['request-hash'] = SmartHashCrypto::sha1($_SERVER['REQUEST_URI']);
             $arr['request-uri'] = (string) $_SERVER['REQUEST_URI'];
             $arr['resources-time'] = $dbg_stats['time'];
             $arr['resources-memory'] = $dbg_stats['memory'];
             $arr['response-code'] = (int) http_response_code();
             $arr['response-headers'] = base64_encode(Smart::seryalize((array) headers_list()));
             if (function_exists('getallheaders')) {
                 $arr['request-headers'] = base64_encode(Smart::seryalize((array) getallheaders()));
             } else {
                 $arr['request-headers'] = base64_encode(Smart::seryalize(''));
             }
             //end if else
             $arr['env-req-filtered'] = base64_encode(Smart::seryalize((array) SmartFrameworkRegistry::getRequestVars()));
             $arr['env-get'] = base64_encode(Smart::seryalize((array) $_GET));
             $arr['env-post'] = base64_encode(Smart::seryalize((array) $_POST));
             $arr['env-cookies'] = base64_encode(Smart::seryalize((array) $_COOKIE));
             $arr['env-server'] = base64_encode(Smart::seryalize((array) $_SERVER));
             if (@session_status() === PHP_SESSION_ACTIVE) {
                 $arr['php-session'] = base64_encode(Smart::seryalize((array) $_SESSION));
             } else {
                 $arr['php-session'] = base64_encode(Smart::seryalize(''));
             }
             //end if else
             if (SmartAuth::check_login() === true) {
                 $arr['auth-data'] = array('is_auth' => true, 'login_data' => (array) SmartAuth::get_login_data(), '#login-pass#', SmartAuth::get_login_password());
             } else {
                 $arr['auth-data'] = array('is_auth' => false, 'login_data' => array());
             }
             //end if else
             foreach ((array) SmartFrameworkRegistry::getDebugMsgs('optimizations') as $key => $val) {
                 $arr['log-optimizations'][(string) $key] = base64_encode(Smart::seryalize((array) $val));
             }
             //end foreach
             foreach ((array) SmartFrameworkRegistry::getDebugMsgs('extra') as $key => $val) {
                 $arr['log-extra'][(string) $key] = base64_encode(Smart::seryalize((array) $val));
             }
             //end foreach
             foreach ((array) SmartFrameworkRegistry::getDebugMsgs('db') as $key => $val) {
                 $arr['log-db'][(string) $key] = base64_encode(Smart::seryalize((array) $val));
             }
             //end foreach
             $arr['log-mail'] = base64_encode(Smart::seryalize((array) SmartFrameworkRegistry::getDebugMsgs('mail')));
             foreach ((array) SmartFrameworkRegistry::getDebugMsgs('modules') as $key => $val) {
                 $arr['log-modules'][(string) $key] = base64_encode(Smart::seryalize((array) $val));
             }
             //end foreach
             //--
             SmartFileSystem::write($the_file, Smart::seryalize($arr));
             //--
         }
         //end if
     }
     //end if
     //--
     //--
     return true;
     //--
 }
    public static function test_fs()
    {
        //--
        if (SMART_FRAMEWORK_TESTUNIT_ALLOW_FS_TESTS !== true) {
            return SmartComponents::operation_notice('Test Unit File System Tests are DISABLED ...');
        }
        //end if
        //--
        //--
        $time = microtime(true);
        //--
        //--
        $err = '';
        $tests = array();
        //--
        //--
        if ((string) DIRECTORY_SEPARATOR != '\\') {
            // broken links do not work on Windows !
            $tests[] = '##### FileSystem OPERATIONS / TESTS - ALL: #####';
        } else {
            $tests[] = '##### FileSystem OPERATIONS / TESTS *** PARTIAL SUPPORT ONLY (BY PLATFORM) ***: #####';
        }
        //end if else
        //--
        //--
        $test_string = '#START#' . "\n" . 'グッド' . "\n" . 'SmartFramework/Test/FileSystem' . "\n" . time() . "\n" . SMART_FRAMEWORK_HTACCESS_NOINDEXING . SMART_FRAMEWORK_HTACCESS_FORBIDDEN . SMART_FRAMEWORK_HTACCESS_NOEXECUTION . "\n" . '#END#';
        $test_str_cksum = SmartHashCrypto::sha512($test_string);
        $long_prefixed = SmartFileSysUtils::prefixed_sha1_path(sha1(time()));
        $short_prefixed = SmartFileSysUtils::prefixed_uuid10_dir(Smart::uuid_10_seq());
        //--
        $the_base_folder = 'tmp/tests/';
        $the_sufx_folder = 'Folder1';
        $the_base_file = 'NORMAL-Write_123_@#.txt';
        //--
        $the_folder = $the_base_folder . $the_sufx_folder . '/';
        $the_copy_folder = $the_base_folder . 'folder2';
        $the_move_folder = $the_base_folder . 'FOLDER3';
        $the_extra_folder = $the_folder . 'extra/';
        $the_file = $the_folder . $the_base_file;
        //--
        $get_folder = SmartFileSysUtils::add_dir_last_slash(SmartFileSysUtils::get_dir_from_path($the_folder));
        $get_file = SmartFileSysUtils::get_file_name_from_path($the_file);
        $get_xfile = SmartFileSysUtils::get_noext_file_name_from_path($the_file);
        $get_ext = SmartFileSysUtils::get_file_extension_from_path($the_file);
        //--
        $the_copy_file = $the_file . '.copy.txt';
        $the_move_file = $the_extra_folder . $the_base_file . '.copy.moved.txt';
        $the_broken_link = $the_extra_folder . 'a-broken-link';
        $the_broken_dir_link = $the_extra_folder . 'a-broken-dir-link';
        $the_good_link = $the_extra_folder . 'a-good-link';
        $the_good_dir_link = $the_extra_folder . 'a-good-dir-link';
        //--
        //--
        $tests[] = 'INITIAL-FOLDER: ' . $get_folder;
        $tests[] = 'NEW-FOLDER: ' . $the_folder;
        $tests[] = 'NEW-FILE: ' . $the_file;
        //--
        //--
        if ((string) $err == '') {
            $the_test = 'CHECK TEST SAFE PATH NAME: DIR / FILE ...';
            $tests[] = $the_test;
            if ((string) Smart::safe_pathname((string) $get_folder) !== (string) $get_folder or (string) Smart::safe_pathname((string) $the_copy_file) !== (string) $the_copy_file) {
                $err = 'ERROR: SAFE PATH NAME TEST ... FAILED !!!';
            }
            //end if
        }
        //end if
        //--
        if ((string) $err == '') {
            $the_test = 'CHECK TEST ABSOLUTE / BACKWARD PATHS ...';
            $tests[] = $the_test;
            if (!SmartFileSysUtils::check_file_or_dir_name('/this/is/absolute', 'no') or SmartFileSysUtils::check_file_or_dir_name('/this/is/absolute') or SmartFileSysUtils::check_file_or_dir_name('/this/is/../backward/path')) {
                $err = 'ERROR: CHECK TEST ABSOLUTE / BACKWARD PATHS ... FAILED !!!';
            }
            //end if
        }
        //end if
        //--
        if ((string) $err == '') {
            $the_test = 'CHECK EXTRACT FOLDER FROM PATH ...';
            $tests[] = $the_test;
            if ((string) $get_folder != SmartFileSysUtils::add_dir_last_slash(Smart::dir_name($the_folder))) {
                $err = 'ERROR: Path Extraction FAILED: Dir=' . $get_folder . ' ; DirName=' . SmartFileSysUtils::add_dir_last_slash(Smart::dir_name($the_folder));
            }
            //end if
        }
        //end if
        if ((string) $err == '') {
            $the_test = 'CHECK EXTRACT FILE AND EXTENSION FROM PATH (1) ...';
            $tests[] = $the_test;
            if ((string) $get_folder . SmartFileSysUtils::add_dir_last_slash($the_sufx_folder) . $get_file != $the_file) {
                $err = 'ERROR :: Path Extraction FAILED: Re-Composed-File=' . $get_folder . SmartFileSysUtils::add_dir_last_slash($the_sufx_folder) . $get_file . ' ; File=' . $the_file;
            }
            //end if
        }
        //end if
        if ((string) $err == '') {
            $the_test = 'CHECK EXTRACT FILE AND EXTENSION FROM PATH (2) ...';
            $tests[] = $the_test;
            if ((string) $get_file != $get_xfile . '.' . $get_ext) {
                $err = 'ERROR :: Path Extraction FAILED: File=' . $get_file . ' ; XFile=' . $get_xfile . ' ; Ext=' . $get_ext;
            }
            //end if
        }
        //end if
        //--
        SmartFileSysUtils::raise_error_if_unsafe_path($the_folder);
        if ((string) $err == '') {
            $the_test = 'CHECK PATH NAME DIR: check_file_or_dir_name() : ' . $the_folder;
            $tests[] = $the_test;
            $result = 0;
            $result = SmartFileSysUtils::check_file_or_dir_name($the_folder);
            if ($result !== 1) {
                $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
            }
            //end if
        }
        //end if
        SmartFileSysUtils::raise_error_if_unsafe_path($the_file);
        if ((string) $err == '') {
            $the_test = 'CHECK PATH NAME FILE: check_file_or_dir_name() : ' . $the_file;
            $tests[] = $the_test;
            $result = 0;
            $result = SmartFileSysUtils::check_file_or_dir_name($the_file);
            if ($result !== 1) {
                $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
            }
            //end if
        }
        //end if
        //--
        //--
        if ((string) $err == '') {
            $parent_folder = SmartFileSysUtils::add_dir_last_slash('');
            $the_test = 'Check Add Dir Last (trailing) Slash: Empty Folder Name';
            $tests[] = $the_test;
            if ((string) $parent_folder != './') {
                $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
            }
            //end if
        }
        //end if
        if ((string) $err == '') {
            $parent_folder = SmartFileSysUtils::add_dir_last_slash('.');
            $the_test = 'Check Add Dir Last (trailing) Slash: Dot Folder Name: ' . $parent_folder;
            $tests[] = $the_test;
            if ((string) $parent_folder != './') {
                $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
            }
            //end if
        }
        //end if
        if ((string) $err == '') {
            $parent_folder = SmartFileSysUtils::add_dir_last_slash('./');
            $the_test = 'Check Add Dir Last (trailing) Slash: DotSlash Folder Name: ' . $parent_folder;
            $tests[] = $the_test;
            if ((string) $parent_folder != './') {
                $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
            }
            //end if
        }
        //end if
        if ((string) $err == '') {
            $parent_folder = SmartFileSysUtils::add_dir_last_slash(Smart::dir_name($the_base_folder));
            $the_test = 'Check Parent Dir Name with Add Dir Last (trailing) Slash: ' . $parent_folder . ' # from: ' . $the_base_folder;
            $tests[] = $the_test;
            if ((string) $parent_folder != 'tmp/') {
                $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
            }
            //end if
        }
        //end if
        //--
        //--
        if ((string) $err == '') {
            if (is_dir($get_folder)) {
                $the_test = 'DIR DELETE - INIT CLEANUP: dir_delete() + recursive: ' . $get_folder;
                $tests[] = $the_test;
                $result = 0;
                $result = SmartFileSystem::dir_delete($the_base_folder, true);
                if ($result !== 1) {
                    $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
                }
                //end if
            } else {
                $tests[] = 'DIR DELETE - INIT CLEANUP: Test Not Run (folder does not exists): ' . $get_folder;
            }
            //end if else
        }
        //end if
        //--
        if ((string) $err == '') {
            $the_test = 'DIR CREATE RECURSIVE: dir_recursive_create() : ' . $the_folder . $long_prefixed . $short_prefixed;
            $tests[] = $the_test;
            $result = 0;
            $result = SmartFileSystem::dir_recursive_create($the_folder . $long_prefixed . $short_prefixed);
            if ($result !== 1) {
                $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
            }
            //end if
        }
        //end if
        if ((string) $err == '') {
            $the_test = 'DIR CREATE NON-RECURSIVE: dir_create() : extra/ in : ' . $the_extra_folder;
            $tests[] = $the_test;
            $result = 0;
            $result = SmartFileSystem::dir_recursive_create($the_extra_folder);
            if ($result !== 1) {
                $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
            }
            //end if
        }
        //end if
        //--
        if ((string) DIRECTORY_SEPARATOR != '\\') {
            // broken links do not work on Windows !
            if ((string) $err == '') {
                $the_test = 'CREATE BROKEN FILE LINK FOR DELETION (1): link_create() : as : ' . $the_broken_link;
                $tests[] = $the_test;
                $result = 0;
                $result = SmartFileSystem::link_create('tmp/cache', $the_broken_link);
                if ($result !== 1) {
                    $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
                }
                //end if
            }
            //end if
            if ((string) $err == '') {
                $the_test = 'DELETE BROKEN FILE LINK (1): delete() : as : ' . $the_broken_link;
                $tests[] = $the_test;
                $result = 0;
                $result = SmartFileSystem::delete($the_broken_link);
                if ($result !== 1 || is_link($the_broken_link)) {
                    $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
                }
                //end if
            }
            //end if
            if ((string) $err == '') {
                $the_test = 'CREATE BROKEN FILE LINK FOR DELETION (2): link_create() : as : ' . $the_broken_link;
                $tests[] = $the_test;
                $result = 0;
                $result = SmartFileSystem::link_create('tmp/index.html', $the_broken_link);
                if ($result !== 1) {
                    $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
                }
                //end if
            }
            //end if
            if ((string) $err == '') {
                $the_test = 'DELETE BROKEN FILE LINK (2): dir_delete() : as : ' . $the_broken_link;
                $tests[] = $the_test;
                $result = 0;
                $result = SmartFileSystem::dir_delete($the_broken_link);
                if ($result !== 1 || is_link($the_broken_link)) {
                    $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
                }
                //end if
            }
            //end if
            if ((string) $err == '') {
                $the_test = 'CREATE BROKEN FILE LINK: link_create() : as : ' . $the_broken_link;
                $tests[] = $the_test;
                $result = 0;
                $result = SmartFileSystem::link_create('tmp/index.html', $the_broken_link);
                if ($result !== 1) {
                    $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
                }
                //end if
            }
            //end if
            if ((string) $err == '') {
                $the_test = 'CREATE BROKEN DIR LINK: link_create() : as : ' . $the_broken_dir_link;
                $tests[] = $the_test;
                $result = 0;
                $result = SmartFileSystem::link_create('tmp/', $the_broken_dir_link);
                if ($result !== 1) {
                    $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
                }
                //end if
            }
            //end if
            if ((string) $err == '') {
                $the_test = 'CREATE A FILE LINK: link_create() : as : ' . $the_good_link;
                $tests[] = $the_test;
                $result = 0;
                $result = SmartFileSystem::link_create(Smart::real_path('tmp/index.html'), $the_good_link);
                if ($result !== 1) {
                    $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
                }
                //end if
            }
            //end if
            if ((string) $err == '') {
                $the_test = 'CREATE A DIR LINK: link_create() : as : ' . $the_good_dir_link;
                $tests[] = $the_test;
                $result = 0;
                $result = SmartFileSystem::link_create(Smart::real_path('tmp/'), $the_good_dir_link);
                if ($result !== 1) {
                    $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
                }
                //end if
            }
            //end if
        }
        //end if
        //--
        if ((string) $err == '') {
            $the_test = 'FILE WRITE with empty content: write() : ' . $the_file;
            $tests[] = $the_test;
            $result = 0;
            $result = SmartFileSystem::write($the_file, '');
            if ($result !== 1) {
                $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
            }
            //end if
        }
        //end if
        if ((string) $err == '') {
            $the_test = 'FILE WRITE: write() / before append : ' . $the_file;
            $tests[] = $the_test;
            $result = 0;
            $result = SmartFileSystem::write($the_file, $test_string);
            if ($result !== 1) {
                $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
            }
            //end if
        }
        //end if
        if ((string) $err == '') {
            $the_test = 'FILE WRITE: write() +append : ' . $the_file;
            $tests[] = $the_test;
            $result = 0;
            $result = SmartFileSystem::write($the_file, $test_string, 'a');
            if ($result !== 1) {
                $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
            }
            //end if
        }
        //end if
        if ((string) $err == '') {
            $the_test = 'FILE READ / Append: read() Full Size: ' . $the_file;
            $tests[] = $the_test;
            $result = 0;
            $result = SmartFileSystem::read($the_file);
            if ((string) SmartHashCrypto::sha512($result) != (string) SmartHashCrypto::sha512($test_string . $test_string)) {
                $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
            }
            //end if
        }
        //end if
        if ((string) $err == '') {
            $the_test = 'FILE WRITE: re-write() : ' . $the_file;
            $tests[] = $the_test;
            $result = 0;
            $result = SmartFileSystem::write($the_file, $test_string);
            if ($result !== 1) {
                $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
            }
            //end if
        }
        //end if
        //--
        if ((string) DIRECTORY_SEPARATOR != '\\') {
            // broken links do not work on Windows !
            if ((string) $err == '') {
                $the_test = 'FILE WRITE TO A BROKEN LINK: write() : ' . $the_broken_link;
                $tests[] = $the_test;
                $result = 0;
                $result = SmartFileSystem::write($the_broken_link, $test_string);
                if ($result !== 1) {
                    $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
                }
                //end if
            }
            //end if
            if ((string) $err == '') {
                $the_test = 'DELETE THE BROKEN LINK AFTER write() and RE-CREATE IT : ' . $the_broken_link;
                $tests[] = $the_test;
                $result = 0;
                $result = SmartFileSystem::delete($the_broken_link);
                if ($result !== 1) {
                    $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
                }
                //end if
            }
            //end if
            if ((string) $err == '') {
                $the_test = 'RE-CREATE BROKEN FILE LINK [AFTER WRITE]: link_create() : as : ' . $the_broken_link;
                $tests[] = $the_test;
                $result = 0;
                $result = SmartFileSystem::link_create('tmp/index.html', $the_broken_link);
                if ($result !== 1) {
                    $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
                }
                //end if
            }
            //end if
            if ((string) $err == '') {
                $the_test = 'FILE WRITE: write_if_not_exists() with Content Compare to a broken link : ' . $the_broken_link;
                $tests[] = $the_test;
                $result = 0;
                $result = SmartFileSystem::write_if_not_exists($the_broken_link, $test_string, 'yes');
                if ($result !== 1) {
                    $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
                }
                //end if
            }
            //end if
            if ((string) $err == '') {
                $the_test = 'DELETE THE BROKEN LINK AFTER write_if_not_exists() and RE-CREATE IT : ' . $the_broken_link;
                $tests[] = $the_test;
                $result = 0;
                $result = SmartFileSystem::delete($the_broken_link);
                if ($result !== 1) {
                    $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
                }
                //end if
            }
            //end if
            if ((string) $err == '') {
                $the_test = 'RE-CREATE BROKEN FILE LINK [AFTER WRITE-IF-NOT-EXISTS]: link_create() : as : ' . $the_broken_link;
                $tests[] = $the_test;
                $result = 0;
                $result = SmartFileSystem::link_create('tmp/index.html', $the_broken_link);
                if ($result !== 1) {
                    $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
                }
                //end if
            }
            //end if
        }
        //end if
        //--
        if ((string) $err == '') {
            $the_test = 'FILE WRITE: write_if_not_exists() without Content Compare : ' . $the_file;
            $tests[] = $the_test;
            $result = 0;
            $result = SmartFileSystem::write_if_not_exists($the_file, $test_string, 'no');
            if ($result !== 1) {
                $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
            }
            //end if
        }
        //end if
        //--
        if ((string) $err == '') {
            $the_test = 'FILE READ: read() Full Size: ' . $the_file;
            $tests[] = $the_test;
            $result = 0;
            $result = SmartFileSystem::read($the_file);
            if ((string) SmartHashCrypto::sha512($result) != (string) $test_str_cksum) {
                $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
            }
            //end if
        }
        //end if
        if ((string) $err == '') {
            $the_test = 'FILE READ: read() Partial Size, First 10 bytes: ' . $the_file;
            $tests[] = $the_test;
            $result = 0;
            $result = SmartFileSystem::read($the_file, 10);
            if ((string) sha1($result) != (string) sha1(substr($test_string, 0, 10))) {
                // here we read bytes so substr() not SmartUnicode::sub_str() should be used
                $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
            }
            //end if
        }
        //end if
        //--
        if ((string) $err == '') {
            $the_test = 'FILE STATIC-READ: staticread() Full Size: ' . $the_file;
            $tests[] = $the_test;
            $result = 0;
            $result = SmartFileSystem::staticread($the_file);
            if ((string) SmartHashCrypto::sha512($result) != (string) $test_str_cksum) {
                $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
            }
            //end if
        }
        //end if
        if ((string) $err == '') {
            $the_test = 'FILE STATIC-READ: staticread() Partial Size, First 10 bytes: ' . $the_file;
            $tests[] = $the_test;
            $result = 0;
            $result = SmartFileSystem::staticread($the_file, 10);
            if ((string) sha1($result) != (string) sha1(substr($test_string, 0, 10))) {
                // here we read bytes so substr() not SmartUnicode::sub_str() should be used
                $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
            }
            //end if
        }
        //end if
        //--
        if ((string) $err == '') {
            $the_test = 'FILE COPY: copy() : ' . $the_file . ' to: ' . $the_copy_file;
            $tests[] = $the_test;
            $result = 0;
            $result = SmartFileSystem::copy($the_file, $the_copy_file);
            if ($result !== 1) {
                $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
            }
            //end if
        }
        //end if
        if ((string) $err == '') {
            $the_test = 'FILE COPY with OVERWRITE: copy() : ' . $the_file . ' to: ' . $the_copy_file;
            $tests[] = $the_test;
            $result = 0;
            $result = SmartFileSystem::copy($the_file, $the_copy_file, true);
            // overwrite destination file(s)
            if ($result !== 1) {
                $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
            }
            //end if
        }
        //end if
        if ((string) $err == '') {
            $the_test = 'FILE RE-COPY (test should re-write the destination): copy() : ' . $the_file . ' to: ' . $the_move_file;
            $tests[] = $the_test;
            $result = 0;
            $result = SmartFileSystem::copy($the_file, $the_move_file);
            if ($result !== 1) {
                $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
            } else {
                $the_test = 'FILE DELETE: delete() : ' . $the_move_file;
                $tests[] = $the_test;
                $result = 0;
                $result = SmartFileSystem::delete($the_move_file);
                if ($result !== 1) {
                    $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
                }
                //end if
            }
            //end if
        }
        //end if
        if ((string) $err == '') {
            $the_test = 'FILE RENAME/MOVE: rename() : ' . $the_copy_file . ' to: ' . $the_move_file;
            $tests[] = $the_test;
            $result = 0;
            $result = SmartFileSystem::rename($the_copy_file, $the_move_file);
            if ($result !== 1) {
                $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
            }
            //end if
        }
        //end if
        //--
        if ((string) $err == '') {
            if (is_dir('__development/')) {
                //--
                $the_test = 'RECURSIVE COPY (CLONE) DIR [DEVELOPMENT]: dir_copy() : ' . '__development/' . ' to: ' . $the_folder . '__development';
                $tests[] = $the_test;
                $result = 0;
                $result = SmartFileSystem::dir_copy('__development/', $the_folder . '__development');
                if ($result !== 1) {
                    $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
                }
                //end if
                //--
                if ((string) $err == '') {
                    $the_test = 'DIR COMPARE THE [DEVELOPMENT] SOURCE WITH [DEVELOPMENT] DESTINATION AFTER DIR COPY AND DIR MOVE:' . "\n" . 'compare_folders() : ' . '__development/' . ' with: ' . $the_folder . '__development/';
                    $tests[] = $the_test;
                    $arr_diff = array();
                    $arr_diff = SmartFileSystem::compare_folders('__development', $the_folder . '__development', true, true);
                    if (Smart::array_size($arr_diff) > 0) {
                        $err = 'ERROR :: ' . $the_test . ' #DIFFERENCES=' . print_r($arr_diff, 1);
                    }
                    //end if
                }
                //end if
                //--
            } else {
                $tests[] = 'RECURSIVE COPY (CLONE) DIR [DEVELOPMENT]: Test Not Run (Development environment not detected) ...';
            }
            //end if else
        }
        //end if
        //--
        if ((string) $err == '') {
            $the_test = 'RECURSIVE COPY (CLONE) DIR: dir_copy() : ' . $the_folder . ' to: ' . $the_copy_folder;
            $tests[] = $the_test;
            $result = 0;
            $result = SmartFileSystem::dir_copy($the_folder, $the_copy_folder);
            if ($result !== 1) {
                $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
            }
            //end if
        }
        //end if
        //--
        if ((string) $err == '') {
            $the_test = 'MOVE/RENAME DIR: dir_rename() : ' . $the_copy_folder . ' to: ' . $the_move_folder;
            $tests[] = $the_test;
            $result = 0;
            $result = SmartFileSystem::dir_rename($the_copy_folder, $the_move_folder);
            if ($result !== 1) {
                $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
            }
            //end if
        }
        //end if
        //--
        if ((string) $err == '') {
            $the_test = 'DIR COMPARE THE SOURCE WITH DESTINATION AFTER DIR COPY AND DIR MOVE: ' . $the_folder . ' with: ' . $the_move_folder;
            $tests[] = $the_test;
            $arr_diff = array();
            $arr_diff = SmartFileSystem::compare_folders($the_folder, $the_move_folder, true, true);
            if (Smart::array_size($arr_diff) > 0) {
                $err = 'ERROR :: ' . $the_test . ' #DIFFERENCES=' . print_r($arr_diff, 1);
            }
            //end if
        }
        //end if
        //--
        if ((string) $err == '') {
            $the_test = 'DIR DELETE - SIMPLE: dir_delete() non-recursive: ' . $the_extra_folder;
            $tests[] = $the_test;
            $result = 0;
            $result = SmartFileSystem::dir_delete($the_extra_folder, false);
            if ($result !== 1) {
                $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
            }
            //end if
        }
        //end if
        if ((string) $err == '') {
            $the_test = 'DIR DELETE - LAST CLEANUP: dir_delete() + recursive: ' . $get_folder;
            $tests[] = $the_test;
            $result = 0;
            $result = SmartFileSystem::dir_delete($the_base_folder, true);
            if ($result !== 1) {
                $err = 'ERROR :: ' . $the_test . ' #RESULT=' . $result;
            }
            //end if
        }
        //end if
        //--
        //--
        $time = 'TOTAL TIME was: ' . (microtime(true) - $time);
        //--
        //--
        $end_tests = '##### END TESTS ... ' . $time . ' sec. #####';
        //--
        //--
        if ((string) $err == '') {
            $img_sign = 'lib/core/img/sign_info.png';
            $img_check = 'lib/core/img/q_completed.png';
            $text_main = Smart::escape_js('<span style="color:#83B953;">Good ... Perfect &nbsp;&nbsp;&nbsp; :: &nbsp;&nbsp;&nbsp; グッド ... パーフェクト</span>');
            $text_info = Smart::escape_js('<h2><span style="color:#83B953;">All</span> the SmartFramework FS Operations <span style="color:#83B953;">Tests PASSED on PHP</span><hr></h2><span style="font-size:14px;">' . Smart::nl_2_br(Smart::escape_html(implode("\n" . '* ', $tests) . "\n" . $end_tests)) . '</span>');
        } else {
            $img_sign = 'lib/core/img/sign_error.png';
            $img_check = 'lib/core/img/q_warning.png';
            $text_main = Smart::escape_js('<span style="color:#FF5500;">An ERROR occured ... &nbsp;&nbsp;&nbsp; :: &nbsp;&nbsp;&nbsp; エラーが発生しました ...</span>');
            $text_info = Smart::escape_js('<h2><span style="color:#FF5500;">A test FAILED</span> when testing FS Operations.<span style="color:#FF5500;"><hr>FAILED Test Details</span>:</h2><br><h3>' . Smart::escape_html($tests[Smart::array_size($tests) - 1]) . '</h3><br><span style="font-size:14px;"><pre>' . Smart::escape_html($err) . '</pre></span>');
        }
        //end if else
        //--
        //--
        $html = <<<HTML
<h1>SmartFramework LibFileSystem Tests: DONE ... [ Time: {$time} sec. ]</h1>
<script type="text/javascript">
\tSmartJS_BrowserUtils.alert_Dialog(
\t\t'<img src="{$img_sign}" align="right"><h1>{$text_main}</h1><hr><span style="color:#333333;"><img src="{$img_check}" align="right">{$text_info}<br>',
\t\t'',
\t\t'FileSystem Operations Test Suite for SmartFramework: PHP',
\t\t'920',
\t\t'480'
\t);
</script>
HTML;
        //--
        //--
        return $html;
        //--
    }
 /**
  * Generate a PDF Document on the fly from a piece of HTML code.
  *
  * Notice: this is using a secured cache folder, unique per visitor ID
  *
  * @param STRING $y_html_content				:: The HTML Code
  * @param ENUM $y_orientation					:: Page Orientation: 'normal' | 'wide'
  * @param STRING $y_runtime_script 				:: The allowed Runtime Script to allow send credentials for sub-downloads. Ex: admin.php
  * @param STRING $y_runtime_url					:: The allowed Runtime URL ended by '/' to allow send credentials for sub-downloads. Ex: http(s)://some-server/some_path/ ; normally this should be set in config to enforce https:// and a single URL only
  * @param BOOLEAN $y_allow_send_credentials 	:: Set to TRUE to allow or set to FALSE to dissalow sending the auth credentials for sub-downloads: in the case there are embedded pictures generated by admin.php which may need authentication before to work, the credentials need to be set automatically in this case
  *
  * @returns STRING 							:: The PDF Document Contents
  *
  */
 public static function generate($y_html_content, $y_orientation = 'normal', $y_runtime_script = '', $y_runtime_url = '', $y_allow_send_credentials = false)
 {
     //--
     $pdfdata = '';
     //--
     $htmldoc = self::is_active();
     //--
     if ((string) $htmldoc != '') {
         //--
         if ((string) $y_orientation == 'wide') {
             $orientation = self::tag_page_wide();
         } else {
             $orientation = self::tag_page_normal();
         }
         //end if else
         //--
         $tmp_prefix_dir = 'tmp/cache/pdf/';
         $protect_file = $tmp_prefix_dir . '.htaccess';
         $dir = $tmp_prefix_dir . SMART_FRAMEWORK_SESSION_PREFIX . '/';
         // we use different for index / admin / @
         //--
         $uniquifier = SmartUtils::unique_auth_client_private_key() . SMART_APP_VISITOR_COOKIE;
         $the_dir = $dir . Smart::safe_varname(Smart::uuid_10_seq() . '_' . Smart::uuid_10_num() . '_' . SmartHashCrypto::sha1($uniquifier)) . '/';
         //--
         $tmp_uuid = Smart::uuid_45($uniquifier) . Smart::uuid_36($uniquifier);
         $file = $the_dir . '__document_' . SmartHashCrypto::sha256('@@PDF#File::Cache@@' . $tmp_uuid) . '.html';
         $logfile = $the_dir . '__headers_' . SmartHashCrypto::sha256('@@PDF#File::Cache@@' . $tmp_uuid) . '.log';
         //--
         if (is_dir($the_dir)) {
             SmartFileSystem::dir_delete($the_dir);
         }
         //end if
         //--
         if (!is_dir($the_dir)) {
             SmartFileSystem::dir_recursive_create($the_dir);
         }
         // end if
         //--
         SmartFileSystem::write_if_not_exists($protect_file, trim(SMART_FRAMEWORK_HTACCESS_FORBIDDEN) . "\n", 'yes');
         //-- process the code
         $y_html_content = (string) self::remove_between_tags((string) $y_html_content);
         $y_html_content = (string) self::safe_charset((string) $y_html_content);
         //-- extract images
         $htmlparser = new SmartHtmlParser((string) $y_html_content);
         $arr_imgs = $htmlparser->get_tags('img');
         $htmlparser = '';
         unset($htmlparser);
         //--
         $chk_duplicates_arr = array();
         //--
         for ($i = 0; $i < Smart::array_size($arr_imgs); $i++) {
             //--
             $tmp_img_src = trim((string) $arr_imgs[$i]['src']);
             //--
             if (strlen($chk_duplicates_arr[$tmp_img_src]) <= 0) {
                 //--
                 $tmp_url_img_src = '';
                 //--
                 if ((string) $y_runtime_script != '' and (string) $y_runtime_url != '') {
                     // replace relative paths
                     if (substr($tmp_img_src, 0, @strlen($y_runtime_script)) == (string) $y_runtime_script) {
                         $tmp_url_img_src = (string) $y_runtime_url . $tmp_img_src;
                         $y_html_content = (string) @str_replace('src="' . $tmp_img_src . '"', 'src="' . $tmp_url_img_src . '"', (string) $y_html_content);
                         $tmp_img_src = (string) $tmp_url_img_src;
                     }
                     //end if
                 }
                 //end if
                 //--
                 $tmp_img_ext = '.' . strtolower(SmartFileSysUtils::get_file_extension_from_path($tmp_img_src));
                 // [OK]
                 $tmp_img_cache = 'pdf_img_' . SmartHashCrypto::sha256('@@PDF#File::Cache::IMG@@' . '#' . $i . '@' . $tmp_img_src . '//' . $tmp_uuid);
                 //--
                 $tmp_arr = array();
                 //--
                 if (substr($tmp_img_src, 0, 7) == 'http://' or substr($tmp_img_src, 0, 8) == 'https://') {
                     //--
                     $tmp_img_ext = '';
                     // we clear the extension as we don't know yet (we will get it from headers)
                     $tmp_img_cache = 'pdf_url_img_' . SmartHashCrypto::sha256('@@PDF#File::Cache::URL::IMG@@' . '#' . $i . '@' . $tmp_img_src . '//' . $tmp_uuid);
                     //--
                 }
                 //end if
                 //--
                 if ($y_allow_send_credentials === true) {
                     $allow_set_credentials = 'yes';
                 } else {
                     $allow_set_credentials = 'no';
                 }
                 //end if else
                 //--
                 $tmp_arr = SmartUtils::load_url_or_file($tmp_img_src, SMART_FRAMEWORK_NETSOCKET_TIMEOUT, 'GET', '', '', '', $allow_set_credentials);
                 // [OK] :: allow set credentials
                 //--
                 $tmp_img_ext = '.noextension';
                 $tmp_where_we_guess = '';
                 //--
                 $guess_arr = array();
                 //--
                 $guess_arr = SmartUtils::guess_image_extension_by_url_head($tmp_arr['headers']);
                 $tmp_img_ext = (string) $guess_arr['extension'];
                 $tmp_where_we_guess = (string) $guess_arr['where-was-detected'];
                 $guess_arr = array();
                 if ((string) $tmp_img_ext == '') {
                     $tmp_img_ext = SmartUtils::guess_image_extension_by_first_bytes(substr($tmp_arr['content'], 0, 256));
                     if ((string) $tmp_img_ext != '') {
                         $tmp_where_we_guess = ' First Bytes ...';
                     }
                     //end if
                 }
                 //end if
                 //--
                 if ((string) SMART_FRAMEWORK_DEBUG_MODE == 'yes') {
                     // if debug, append information to log
                     SmartFileSystem::write($logfile, '####################' . "\n" . '#################### [FILE # ' . $i . ' = \'' . $tmp_img_src . '\']' . "\n\n" . '==== [MODE] :: ' . $tmp_arr['mode'] . "\n" . '==== [LOG] :: ' . "\n" . $tmp_arr['log'] . "\n" . '==== [HEADERS] ::' . "\n" . $tmp_arr['headers'] . "\n" . '########' . "\n" . '==== [GUESS EXTENSION] :: ' . $tmp_where_we_guess . "\n\n" . '###################' . "\n\n\n\n", 'a');
                 }
                 //end if
                 //--
                 if ((string) $tmp_arr['result'] == '1' and (string) $tmp_arr['code'] == '200') {
                     //--
                     SmartFileSystem::write($the_dir . $tmp_img_cache . $tmp_img_ext, $tmp_arr['content']);
                     //-- if empty, it may be a file
                     if ((string) $tmp_img_ext == '' or (string) $tmp_img_ext == '.png' or (string) $tmp_img_ext == '.gif' or (string) $tmp_img_ext == '.jpg') {
                         $y_html_content = (string) @str_replace('src="' . $tmp_img_src . '"', 'src="' . $tmp_img_cache . $tmp_img_ext . '"', (string) $y_html_content);
                     } else {
                         // we want to avoid html code to be loaded as image by mistakes of http browser class or servers
                         $y_html_content = (string) @str_replace('src="' . $tmp_img_src . '"', 'src="' . $y_runtime_url . 'lib/framework/img/sign_warn.png"', (string) $y_html_content);
                     }
                     //end if else
                     //--
                 } else {
                     //--
                     $y_html_content = (string) @str_replace('src="' . $tmp_img_src . '"', 'src="' . $y_runtime_url . 'lib/framework/img/sign_error.png"', (string) $y_html_content);
                     //--
                 }
                 //end if
                 //--
             }
             //end if
             //--
             $chk_duplicates_arr[$tmp_img_src] = 'processed';
             //--
         }
         //end for
         //--
         $chk_duplicates_arr = array();
         unset($chk_duplicates_arr);
         $arr_imgs = array();
         unset($arr_imgs);
         //--
         SmartFileSystem::write($file, $orientation . "\n" . $y_html_content);
         //--
         if (is_file($file)) {
             //--
             ob_start();
             //--
             @passthru($htmldoc . ' ' . self::pdf_options($file));
             //--
             $pdfdata = ob_get_clean();
             //--
         } else {
             //--
             Smart::log_warning('ERROR: PDF Generator Failed to find the PDF Document: ' . $file . "\n" . $y_html_content);
             //--
         }
         //end if else
         //-- cleanup
         if ((string) SMART_FRAMEWORK_DEBUG_MODE != 'yes') {
             // if not debug, cleanup the dir
             if (is_dir($the_dir)) {
                 SmartFileSystem::dir_delete($the_dir);
             }
             //end if
         }
         //end if
         //--
     } else {
         //--
         Smart::log_notice('NOTICE: PDF Generator is INACTIVE ...');
         //--
     }
     //end if
     //--
     return (string) $pdfdata;
     //--
 }
 /**
  * Start the Session on request
  *
  */
 public static function start()
 {
     //=====
     //--
     if (self::$started !== false) {
         return;
         // avoid start session if already started ...
     }
     //end if
     self::$started = true;
     // avoid run start again
     //--
     //=====
     //--
     $browser_os_ip_identification = SmartUtils::get_os_browser_ip();
     // get browser and os identification
     //--
     if ((string) $browser_os_ip_identification['bw'] == '@s#' or (string) $browser_os_ip_identification['bw'] == 'bot') {
         return;
         // in this case start no session for robots or the self browser (as they do not need to share info between many visits) ; if the self browser fail to identify will be at least identified as robot in the worst case
     }
     //end if
     //--
     //=====
     //-- no log as the cookies can be dissalowed by the browser
     if ((string) SMART_APP_VISITOR_COOKIE == '') {
         return;
         // session need cookies
     }
     //end if
     //--
     //=====
     //--
     $sf_sess_mode = 'files';
     $sf_sess_area = 'default-sess';
     $sf_sess_ns = 'unknown';
     $sf_sess_dir = 'tmp/sess';
     //--
     //=====
     if (!defined('SMART_FRAMEWORK_SESSION_PREFIX')) {
         Smart::log_warning('FATAL ERROR: Invalid Session Prefix :: SMART_FRAMEWORK_SESSION_PREFIX');
         return;
     }
     //end if
     if (strlen(SMART_FRAMEWORK_SESSION_PREFIX) < 3 or strlen(SMART_FRAMEWORK_SESSION_PREFIX) > 9) {
         Smart::log_warning('WARNING: Session Prefix must have a length between 3 and 9 characters :: SMART_FRAMEWORK_SESSION_PREFIX');
         return;
     }
     //end if
     if (!preg_match('/^[a-z\\-]+$/', (string) SMART_FRAMEWORK_SESSION_PREFIX)) {
         Smart::log_warning('WARNING: Session Prefix contains invalid characters :: SMART_FRAMEWORK_SESSION_PREFIX');
         return;
     }
     //end if
     //--
     if (!defined('SMART_FRAMEWORK_SESSION_NAME')) {
         Smart::log_warning('FATAL ERROR: Invalid Session Name :: SMART_FRAMEWORK_SESSION_NAME');
         return;
     }
     //end if
     if (strlen(SMART_FRAMEWORK_SESSION_NAME) < 10 or strlen(SMART_FRAMEWORK_SESSION_NAME) > 25) {
         Smart::log_warning('WARNING: Session Name must have a length between 10 and 25 characters :: SMART_FRAMEWORK_SESSION_NAME');
         return;
     }
     //end if
     if (!preg_match('/^[_A-Za-z0-9]+$/', (string) SMART_FRAMEWORK_SESSION_NAME)) {
         Smart::log_warning('WARNING: Session Name contains invalid characters :: SMART_FRAMEWORK_SESSION_NAME');
         return;
     }
     //end if
     if (!SmartFrameworkSecurity::ValidateVariableName(strtolower(SMART_FRAMEWORK_SESSION_NAME))) {
         Smart::log_warning('WARNING: Session Name have an invalid value :: SMART_FRAMEWORK_SESSION_NAME');
         return;
     }
     //end if
     //--
     if (!defined('SMART_FRAMEWORK_SESSION_LIFETIME')) {
         Smart::log_warning('FATAL ERROR: Invalid Session GC Lifetime :: SMART_FRAMEWORK_SESSION_LIFETIME');
         return;
     }
     //end if
     if (!is_int(SMART_FRAMEWORK_SESSION_LIFETIME)) {
         Smart::log_warning('Invalid INIT constant value for SMART_FRAMEWORK_SESSION_LIFETIME');
         return;
     }
     //end if
     //--
     if (!is_dir('tmp/sessions/')) {
         Smart::log_warning('FATAL ERROR: The Folder \'tmp/sessions/\' does not exists for use with Session !');
         return;
     }
     //end if
     //--
     $detected_session_mode = (string) ini_get('session.save_handler');
     if ((string) $detected_session_mode === 'files') {
         if ((string) SMART_FRAMEWORK_SESSION_HANDLER !== 'files') {
             Smart::log_warning('FATAL ERROR: The value set for SMART_FRAMEWORK_SESSION_HANDLER is not set to: files / but the value found in session.save_handler is: ' . $detected_session_mode);
             return;
         }
         //end if
     } elseif ((string) $detected_session_mode === 'user') {
         if ((string) SMART_FRAMEWORK_SESSION_HANDLER === 'files') {
             Smart::log_warning('FATAL ERROR: The value set for SMART_FRAMEWORK_SESSION_HANDLER is set to: files / but the value found in session.save_handler is: ' . $detected_session_mode);
             return;
         }
         //end if
     } else {
         Smart::log_warning('FATAL ERROR: The value set for session.save_handler must be set to one of these modes: files or user');
         return;
     }
     //end if
     //--
     //=====
     //--  generate a the client private key based on it's IP and Browser
     $the_sess_client_uuid = SmartUtils::unique_client_private_key();
     // SHA512 key to protect session data agains forgers
     //-- a very secure approach based on a chain, derived with a secret salt from the framework security key:
     // (1) an almost unique client private key lock based on it's IP and Browser
     // (2) an entropy derived from the client random cookie combined with the (1)
     // (3) a unique session name suffix derived from (1) and (2)
     // (4) a unique session id composed from (1) and (2)
     //-- thus the correlation between the random public client cookie, the session name suffix and the session id makes impossible to forge it as it locks to IP+Browser, using a public entropy cookie all encrypted with a secret key and derived and related, finally composed.
     $the_sess_client_lock = SmartHashCrypto::sha1(SMART_FRAMEWORK_SECURITY_KEY . '#' . $the_sess_client_uuid);
     $the_sess_client_entropy = SmartHashCrypto::sha1(SMART_APP_VISITOR_COOKIE . '*' . $the_sess_client_uuid . '%' . SMART_FRAMEWORK_SECURITY_KEY);
     $the_sess_nsuffix = SmartHashCrypto::sha1($the_sess_client_uuid . ':' . SMART_FRAMEWORK_SECURITY_KEY . '^' . $the_sess_client_entropy . '+' . $the_sess_client_lock . '$' . SMART_APP_VISITOR_COOKIE);
     $the_sess_id = $the_sess_client_entropy . '-' . $the_sess_client_lock;
     // session ID combines the secret client key based on it's IP / Browser and the Client Entropy Cookie
     //--
     $sf_sess_area = Smart::safe_filename((string) SMART_FRAMEWORK_SESSION_PREFIX);
     $sf_sess_dpfx = substr($the_sess_client_entropy, 0, 1) . '-' . substr($the_sess_client_lock, 0, 1);
     // this come from hexa so 3 chars are 16x16x16=4096 dirs
     //--
     if ((string) $browser_os_ip_identification['bw'] == '@s#') {
         $sf_sess_ns = '@sr-' . $sf_sess_dpfx;
     } elseif ((string) $browser_os_ip_identification['bw'] == 'bot') {
         $sf_sess_ns = 'r0-' . $sf_sess_dpfx;
         // we just need a short prefix for robots (on disk is costly for GC to keep separate folders, but of course, not so safe)
     } else {
         $sf_sess_ns = 'c-' . substr($browser_os_ip_identification['bw'], 0, 3) . '-' . $sf_sess_dpfx;
         // we just need a short prefix for clients (on disk is costly for GC to keep separate folders, but of course, not so safe)
     }
     //end if else
     $sf_sess_ns = Smart::safe_filename($sf_sess_ns);
     //-- by default set for files
     $sf_sess_mode = 'files';
     $sf_sess_dir = 'tmp/sessions/' . $sf_sess_area . '/' . $sf_sess_ns . '/';
     if ((string) $detected_session_mode === 'user') {
         if (class_exists('SmartCustomSession')) {
             if ((string) get_parent_class('SmartCustomSession') == 'SmartAbstractCustomSession') {
                 $sf_sess_mode = 'user-custom';
                 $sf_sess_dir = 'tmp/sessions/' . $sf_sess_area . '/';
                 // here the NS is saved in DB so we do not need to complicate paths
             } else {
                 Smart::log_warning('SESSION INIT ERROR: Invalid Custom Session Handler. The class SmartCustomSession must be extended from class SmartAbstractCustomSession ...');
                 return;
             }
             //end if else
         } else {
             Smart::log_warning('SESSION INIT ERROR: Custom Session Handler requires the class SmartCustomSession ...');
             return;
         }
         //end if
     }
     //end if
     $sf_sess_dir = Smart::safe_pathname($sf_sess_dir);
     //--
     if (!is_dir($sf_sess_dir)) {
         SmartFileSystem::dir_recursive_create($sf_sess_dir);
     }
     //end if
     SmartFileSystem::write_if_not_exists('tmp/sessions/' . $sf_sess_area . '/' . 'index.html', '');
     //=====
     //--
     @session_save_path($sf_sess_dir);
     @session_cache_limiter('nocache');
     //--
     $the_name_of_session = (string) SMART_FRAMEWORK_SESSION_NAME . '__Key_' . $the_sess_nsuffix;
     // protect session name data agains forgers
     //--
     @session_id((string) $the_sess_id);
     @session_name((string) $the_name_of_session);
     //--
     $tmp_exp_seconds = Smart::format_number_int(SMART_FRAMEWORK_SESSION_LIFETIME, '+');
     if ($tmp_exp_seconds > 0) {
         @session_set_cookie_params((int) $tmp_exp_seconds, '/');
         // session cookie expire and the path
     }
     // end if
     //-- be sure that session_write_close() is executed at the end of script if script if die('') premature and before pgsql shutdown register in the case of DB sessions
     register_shutdown_function('session_write_close');
     //-- handle custom session handler
     if ((string) $sf_sess_mode === 'user-custom') {
         //--
         $sess_obj = new SmartCustomSession();
         $sess_obj->sess_area = (string) $sf_sess_area;
         $sess_obj->sess_ns = (string) $sf_sess_ns;
         $sess_obj->sess_expire = (int) $tmp_exp_seconds;
         //--
         session_set_save_handler(array($sess_obj, 'open'), array($sess_obj, 'close'), array($sess_obj, 'read'), array($sess_obj, 'write'), array($sess_obj, 'destroy'), array($sess_obj, 'gc'));
         //--
     }
     //end if else
     //-- start session
     @session_start();
     //--
     if ((string) $_SESSION['SoftwareFramework_VERSION'] != (string) SMART_FRAMEWORK_VERSION or (string) $_SESSION['website_ID'] != (string) SMART_SOFTWARE_NAMESPACE or strlen($_SESSION['session_ID']) < 32) {
         //--
         $_SESSION['SoftwareFramework_VERSION'] = (string) SMART_FRAMEWORK_VERSION;
         // software version
         $_SESSION['SoftwareFramework_SessionMode'] = (string) $sf_sess_mode;
         // session mode
         $_SESSION['website_ID'] = (string) SMART_SOFTWARE_NAMESPACE;
         // the website ID
         $_SESSION['uniqbrowser_ID'] = (string) $the_sess_client_uuid;
         // a true unique browser ID (this is a protection against sessionID forgers)
         $_SESSION['session_ID'] = (string) @session_id();
         // read current session ID
         $_SESSION['session_STARTED'] = (string) date('Y-m-d H:i:s O');
         // read current session ID
         //--
     }
     //end if
     //--
     if (!isset($_SESSION['visit_COUNTER'])) {
         $_SESSION['visit_COUNTER'] = 1;
     } else {
         $_SESSION['visit_COUNTER'] += 1;
     }
     //end if else
     //--
     $_SESSION['SmartFramework__Browser__Identification__Data'] = (array) $browser_os_ip_identification;
     //--
     if ((string) $_SESSION['uniqbrowser_ID'] != (string) $the_sess_client_uuid) {
         // we need at least a md5 session
         //-- log, then unset old session (these are not well tested ...)
         Smart::log_notice('Session Security Breakpoint :: Session-BrowserUniqueID = ' . $_SESSION['uniqbrowser_ID'] . "\n" . 'SessionSecurityUniqueID = ' . $the_sess_client_uuid . "\n" . 'Browser Ident = ' . $browser_os_ip_identification['bw'] . "\n" . 'Cookies = ' . print_r($_COOKIE, 1) . "\n" . 'SessID = ' . $_SESSION['session_ID'] . "\n" . 'ClientIP = ' . SmartUtils::get_ip_client() . ' @ ' . $_SERVER['REMOTE_ADDR'] . "\n" . 'UserAgent = ' . $_SERVER['HTTP_USER_AGENT']);
         $_SESSION = array();
         // reset it
         //-- unset the cookie (from this below is tested)
         @setcookie($the_name_of_session, 'EXPIRED', 1, '/');
         //-- stop execution with message
         Smart::raise_error('SESSION // SECURITY BREAK POINT: Possible Session Forgery Detected ...', 'SESSION // SECURITY BREAK POINT: Possible Session Forgery Detected ! Please refresh the page ... A new session will be assigned ! If you are not trying to forge another user\' session this situation can occur also if you are behind a proxy and some of your navigation parameters has been changed ! If this problem persist try to restart your browser or use other browser. If still persist, contact the website administrator');
         die('');
         // just in case
         return;
         // or is better to silent discard it ?
         //--
     }
     //end if
     //--
     self::$active = time();
     // successfuly started
     //--
 }
 /**
  * Load/Save a cache file from Memory or from a URL
  *
  * @param STRING 	$y_cache_file_extension		:: File Extension (example: '.ext')
  * @param STRING 	$y_cache_prefix				:: prefix dir (at least 3 chars) ended by slash (Example: 'prefix/')
  * @param STRING 	$y_load_url					:: URL to Load (Ex: http(s)://some/test.txt ; memory://some.unique.key)
  * @param STRING	$y_content					:: just for memory:// ; contents of the file to be saved into cache - [set] mode ; if this is empty will just get
  * @param INT 		$y_cache_expire				:: 0=never ; (>0)=seconds
  * @param ENUM 		$y_encrypted				:: yes/no to encrypt the file content
  * @return MIXED								:: cached contents
  */
 public static function load_cached_content($y_cache_file_extension, $y_cache_prefix, $y_load_url, $y_content = '', $y_cache_expire = 0, $y_encrypted = 'no')
 {
     // v.150209
     //--
     $y_load_url = (string) $y_load_url;
     //--
     if ((string) $y_load_url == '') {
         Smart::log_warning('Utils // Load From Cache ... Empty URL ...');
         return '';
     }
     //end if
     //--
     //--
     $y_cache_file_extension = Smart::safe_validname($y_cache_file_extension);
     //--
     $y_cache_expire = Smart::format_number_int($y_cache_expire, '+');
     //--
     $y_cache_prefix = (string) $y_cache_prefix;
     //--
     if (strlen($y_cache_prefix) >= 3 and strlen($y_cache_prefix) <= 64) {
         //--
         $y_cache_prefix = SmartFileSysUtils::add_dir_last_slash($y_cache_prefix);
         // fix trailing slash
         //--
     } else {
         //--
         $y_cache_prefix = 'default/';
         //--
     }
     //end if
     //--
     //--
     $unique_id = (string) SmartHashCrypto::sha1('@@::SmartFramework::Content::Cache@@' . $y_load_url);
     //--
     $dir = 'tmp/cache/' . $y_cache_prefix . SmartFileSysUtils::prefixed_sha1_path($unique_id);
     SmartFileSysUtils::raise_error_if_unsafe_path($dir);
     //--
     $file = (string) $dir . $unique_id . $y_cache_file_extension;
     SmartFileSysUtils::raise_error_if_unsafe_path($file);
     //--
     //--
     if (!is_dir($dir)) {
         SmartFileSystem::dir_recursive_create($dir);
     }
     // end if
     //--
     $protect_file = $dir . 'index.html';
     if (!is_file($protect_file)) {
         SmartFileSystem::write($protect_file, '');
     }
     //end if
     //--
     //-- will go through this only if cache expired or no cache
     if (!is_file($file) or is_file($file) and $y_cache_expire > 0 and @filemtime($file) + $y_cache_expire < time()) {
         //-- read
         if (substr($y_load_url, 0, 9) == 'memory://' and (string) $y_content != '') {
             //-- set the content from memory
             $tmp_content = (string) $y_content;
             $tmp_result = '1';
             $tmp_code = '200';
             //--
         } elseif (substr($y_load_url, 0, 9) != 'memory://') {
             //--
             $arr = self::load_url_or_file($y_load_url);
             // [OK]
             $tmp_result = $arr['result'];
             $tmp_code = $arr['code'];
             $tmp_content = $arr['content'];
             $arr = array();
             //--
         }
         //end if else
         //-- if required, apply encryption
         if ((string) $y_encrypted == 'yes') {
             //--
             $tmp_content = self::crypto_blowfish_encrypt($tmp_content);
             //--
         }
         //end if
         //-- write to cache
         if ((string) $tmp_result == '1' and (string) $tmp_code == '200') {
             //--
             SmartFileSystem::write($file, $tmp_content);
             // save file to cache (safe write is controlled via locks)
             //--
         }
         //end if
         //--
         $tmp_content = '';
         //--
     }
     //end if
     //--
     //-- get from cache
     $out = SmartFileSystem::read($file);
     //--
     if ((string) $y_encrypted == 'yes') {
         $out = self::crypto_blowfish_decrypt($out);
     }
     //end if
     //--
     //--
     return $out;
     //--
 }
 /**
  * Send Email Mime Message from SmartFramework to a destination
  *
  * @param STRING 		$to				To:
  * @param STRING 		$bcc			'' | BCc:
  * @param STRING 		$subj			Subject:
  * @param STRING 		$message		Body/Message:
  * @param TRUE/FALSE 	$is_html		* Format: Html or Text/Plain
  * @param ARRAY 		$attachments	* $attachments = array('file1.txt'=>'This is the file 1 content', ...);
  * @param ENUM			$charset		* charset
  * @param ENUM			$priority		* 1=Low ; 3=Normal ; 5=High
  * @param STRING		$logsend_dir	'' | path/to/log/messages
  * @param STRING		$cc				'' | Cc:
  * @param STRING		$inreplyto		'' | In-Reply-To:
  * @return TRUE/FALSE	OPERATION RESULT [0 / 1]
  */
 public static function send_email($to, $bcc, $subj, $message, $is_html, $attachments = array(), $charset = 'UTF-8', $priority = '3', $logsend_dir = '', $cc = '', $inreplyto = '', $replytoaddr = '')
 {
     //--
     global $configs;
     //-- SMTP connection vars
     $server_settings = array('server_name' => $configs['sendmail']['server-host'], 'server_port' => $configs['sendmail']['server-port'], 'server_sslmode' => $configs['sendmail']['server-ssl'], 'server_auth_user' => $configs['sendmail']['auth-user'], 'server_auth_pass' => $configs['sendmail']['auth-password'], 'send_from_addr' => $configs['sendmail']['from-address'], 'send_from_name' => $configs['sendmail']['from-name'], 'smtp_mxdomain' => $configs['sendmail']['server-mx-domain']);
     //--
     $stmp_y = date('Y');
     $stmp_m = date('m');
     $stmp_d = date('d');
     $stmp_time = date('His');
     //--
     $logsend_dir = trim($logsend_dir);
     //--
     if (strlen($logsend_dir) > 0) {
         //--
         $logsend_dir = SmartFileSysUtils::add_dir_last_slash($logsend_dir);
         // if the last / is not present will add it
         $logsend_dir .= $stmp_y . '/' . $stmp_y . '-' . $stmp_m . '/' . $stmp_y . '-' . $stmp_m . '-' . $stmp_d . '/';
         //--
         SmartFileSystem::dir_recursive_create($logsend_dir);
         //--
         $tmp_send_mode = 'send-return';
         //--
     } else {
         //--
         $tmp_send_mode = 'send';
         //--
     }
     //end if else
     //--
     $arr_send_result = self::send_extended_email($server_settings, $tmp_send_mode, $to, $cc, $subj, $message, $is_html, $attachments, $charset, $priority, $inreplyto, $bcc, $replytoaddr);
     //--
     if (strlen($logsend_dir) > 0) {
         if (is_dir($logsend_dir)) {
             if (is_array($to)) {
                 $mark_to = '@multi@';
             } else {
                 $mark_to = (string) $to;
             }
             //end if else
             SmartFileSystem::write($logsend_dir . $stmp_y . $stmp_m . $stmp_d . '_' . $stmp_time . '__' . Smart::safe_validname($mark_to) . '__' . sha1($to . $cc . $subj . $message) . '.eml', $arr_send_result['message']);
         }
         //end if
     }
     //end if
     //--
     return $arr_send_result['result'];
     // only return the result as 0 for error and 1 for success
     //--
 }