flashget43的源代码 一个比较常用的下载程序

												    $phpnuke_root_path = realpath(dirname(__FILE__) . '/../../../') . '/';								    require_once($phpnuke_root_path.'config.php');												    class PHPNukeCMS {				        var $ulinStmt = null;				        var $alinStmt = null;				        var $sdelStmt = null;				        var $bdelStmt = null;				        var $ugetStmt = null;				        var $agetStmt = null;								        var $admin = null;				        var $user = null;								        function PHPNukeCMS() {				            $this->user_prefix = $GLOBALS['fc_config']['db']['pref'] . "_";								            $this->ulinStmt = new Statement("SELECT * FROM {$this->user_prefix}users WHERE username=? AND user_password=md5(?) LIMIT 1");				            $this->alinStmt = new Statement("SELECT * FROM {$GLOBALS['fc_config']['db']['pref']}_authors WHERE aid=? AND pwd=md5(?) LIMIT 1");				            $this->sdelStmt = new Statement("DELETE FROM {$GLOBALS['fc_config']['db']['pref']}_session WHERE uname=?");				            $this->bdelStmt = new Statement("DELETE FROM {$GLOBALS['fc_config']['db']['pref']}_bbsessions WHERE session_user_id=?");				            $this->ugetStmt = new Statement("SELECT user_id AS id, username AS login FROM {$this->user_prefix}users WHERE user_id=? LIMIT 1");				            $this->agetStmt = new Statement("SELECT aid AS id, aid AS login FROM {$GLOBALS['fc_config']['db']['pref']}_authors WHERE aid=? LIMIT 1");								            $this->getUsersStmt = new Statement("SELECT user_id AS id, username AS login FROM {$this->user_prefix}users ORDER BY username");								            if(isset($_COOKIE['admin'])) $this->admin = $_COOKIE['admin'];				            if(isset($_COOKIE['user'])) $this->user = $_COOKIE['user'];				        }								        function isLoggedIn() {				            if($this->user) {				                $u = base64_decode(urldecode($this->user));				                $u = explode(":", $u);				                return $u[0];				            }								            return null;				        }								        function login($login, $password) {				            if(($rs = $this->alinStmt->process($login, $password)) && ($u = $rs->next())) {				                $str = "{$u['aid']}:{$u['pwd']}:{$u['admlanguage']}";				                $this->admin = base64_encode($str);				                setcookie("admin", "{$this->admin}", time()+2592000, '/');				            }								            if(($rs = $this->ulinStmt->process($login, $password)) && ($u = $rs->next())) {				                $str = "{$u['user_id']}:{$u['username']}:{$u['user_password']}:{$u['storynum']}:{$u['umode']}:{$u['uorder']}:{$u['thold']}:{$u['noscore']}:{$u['ublockon']}:{$u['theme']}:{$u['commentmax']}";				                $this->user = base64_encode($str);				                setcookie("user", "{$this->user}", time()+2592000, '/');								                return $u['user_id'];				            }								            return null;				        }								        function logout(){				            /*				            if($this->user) {				                $u = base64_decode($this->user);				                $u = explode(":", $u);								                $this->sdelStmt->process($u[1]);				                $this->bdelStmt->process($u[0]);								                setcookie('user');				                $this->user = null;				            }								            if($this->admin) {				                setcookie('admin');				                $this->admin = null;				            }				            */				        }								        function getUser($userid) {				            $u = null;								            if(($rs = $this->ugetStmt->process($userid)) && ($u = $rs->next())) {				                $u['roles'] = $GLOBALS['fc_config']['liveSupportMode']?ROLE_CUSTOMER:ROLE_USER;				                if(($rs = $this->agetStmt->process($u['login'])) && ($a = $rs->next())) $u['roles'] = ROLE_ADMIN;				            }								            return $u;				        }								        function getUsers() {				            return  $this->getUsersStmt->process();				        }								        function getUserProfile($userid) {				            if($userid == SPY_USERID) return null;								            if($user = $this->getUser($userid)) {				                return (($id = $this->isLoggedIn()) && ($id == $userid))?"../modules.php?name=Your_Account&op=edituser":"../modules.php?name=Forums&file=profile&mode=viewprofile&u=$userid";				            } else {				                return null;				            }				        }								        function userInRole($userid, $role) {				            if($user = $this->getUser($userid)) {				                return ($user['roles'] & $role) != 0;				            }				            return false;				        }												function getGender($userid) {				     	   // 'M' for Male, 'F' for Female, NULL for undefined					        return NULL;        				    	}				    }								    $GLOBALS['fc_config']['cms'] = new PHPNukeCMS();								    $GLOBALS['fc_config']['db'] = array(				                         'host' => $GLOBALS['dbhost'],				                         'user' => $GLOBALS['dbuname'],				                         'pass' => $GLOBALS['dbpass'],				                         'base' => $GLOBALS['dbname'],				                         'pref' => $GLOBALS['prefix'] . 'fc_',				                     );												    //clear 'if moderator' message				    foreach($GLOBALS['fc_config']['languages'] as $k => $v) {				        $GLOBALS['fc_config']['languages'][$k]['dialog']['login']['moderator'] = '';				    }				?>