class admin_upgrade  extends Model {
        public function __construct()
        {

        }
        public function run()
        {
            $doUpgradeFlag=false;
            $error="";
            if( isset($_POST['Upgrade']) ){
                        if( isset($_FILES['AP_FIRMWARE']) ){
                                $f = $_FILES['AP_FIRMWARE'];
                                if( $f['error'] ){
                                        $msg = codeToMessage($f['error']);
                                        $error =  $msg;
                                }
                                if( preg_match("|\.lxl$|",$f['name']) == false ){
                                        $error = "Extension error";
                                }
                                $ret = move_uploaded_file( $f['tmp_name'], TEMP_FILE_UPLOAD );
                                if( $ret ){
                                        file_put_contents(FIRMWARE_NAME_FILE,TEMP_FILE_UPLOAD);
                                        //$output = exec($this->verifyCmd);


                                        //verify model number
                                        if($error==""){
                        $fw_model=exec('echo $(dd if='. TEMP_FILE_UPLOAD .' bs=2 skip=24 count=6 2>/dev/null)');
                                        $my_model=Uci::get(sprintf(constants::LUXUL_HARDWARE_MODEL,0));
                                        if($fw_model!=$my_model){
                                            $error = 'Firmware update failed: The firmware file is for a different AP model. Please download the firmware for the '. Uci::get(sprintf(constants::LUXUL_HARDWARE_MODEL,0)) . ' and try again.';
                                        }
                                        }
                                        //validate checksum
                                        if($error==""){
                                        $md5_img=exec('echo $(dd if='. TEMP_FILE_UPLOAD. ' bs=16 count=2 2>/dev/null)');
                                        $md5_gen=preg_split("/\s+/",exec('echo $(dd if='. TEMP_FILE_UPLOAD .' bs=16 skip=4 2>/dev/null | md5sum)'));
                                        if($md5_gen[0]!=$md5_img){
                                            $error = "Firmware update failed: The firmware file is corrupted. Please download the firmware and try again.";
                                        }
                                        }
                                        if( $error!="" ){
                                                $this->_unlinkTmpFiles();
                                        }else{
                                            $doUpgradeFlag=true;
                                        }
                                }else{
                                        $error = "Could not process this file";
                                }
                        }

        }
        include_once $doUpgradeFlag==true ? CFG_VIEW_DIRECTORY . "admin/sub/upgrade/progressbar.html" : CFG_VIEW_DIRECTORY . "admin/sub/upgrade/upgrade.html";
        }

        public function run_api(){
            //clip off the header
            exec('dd if='. TEMP_FILE_UPLOAD .' bs=16 skip=4 of='. TEMP_FILE_UPLOAD .' conv=notrunc 2>/dev/null', $o, $ret);
            //do the upgrade
            exec('/sbin/sysupgrade '. TEMP_FILE_UPLOAD .' >/dev/null &');

        }