使用PHP如何实现高效安全的ftp服务器(二)

php  /  管理员 发布于 7年前   149

在上篇文章给大家介绍了使用PHP如何实现高效安全的ftp服务器(一)，感兴趣的朋友可以点击了解详情。接下来通过本篇文章给大家介绍使用PHP如何实现高效安全的ftp服务器(二)，具体内容如下所示：

1.实现用户类CUser。

　　用户的存储采用文本形式，将用户数组进行json编码。　　

用户文件格式：

* array(* 'user1' => array(* 'pass'=>'',* 'group'=>'',* 'home'=>'/home/ftp/', //ftp主目录* 'active'=>true,* 'expired=>'2015-12-12',* 'description'=>'',* 'email' => '',* 'folder'=>array(* //可以列出主目录下的文件和目录，但不能创建和删除，也不能进入主目录下的目录* //前1-5位是文件权限，6-9是文件夹权限,10是否继承(inherit)* array('path'=>'/home/ftp/','access'=>'RWANDLCNDI'),* //可以列出/home/ftp/a/下的文件和目录,可以创建和删除，可以进入/home/ftp/a/下的子目录，可以创建和删除。* array('path'=>'/home/ftp/a/','access'=>'RWAND-----'),* ),* 'ip'=>array(* 'allow'=>array(ip1,ip2,...),//支持*通配符: 192.168.0.** 'deny'=>array(ip1,ip2,...)* )* ) * )* * 组文件格式：* array(* 'group1'=>array(* 'home'=>'/home/ftp/dept1/',* 'folder'=>array(* * ),* 'ip'=>array(* 'allow'=>array(ip1,ip2,...),* 'deny'=>array(ip1,ip2,...)* )* )* ) 

　　文件夹和文件的权限说明：

* 文件权限
* R读 : 允许用户读取（即下载）文件。该权限不允许用户列出目录内容，执行该操作需要列表权限。
* W写: 允许用户写入（即上传）文件。该权限不允许用户修改现有的文件，执行该操作需要追加权限。
* A追加: 允许用户向现有文件中追加数据。该权限通常用于使用户能够对部分上传的文件进行续传。
* N重命名: 允许用户重命名现有的文件。
* D删除: 允许用户删除文件。
*
* 目录权限
* L列表: 允许用户列出目录中包含的文件。
* C创建: 允许用户在目录中新建子目录。
* N重命名: 允许用户在目录中重命名现有子目录。
* D删除: 允许用户在目录中删除现有子目录。注意： 如果目录包含文件，用户要删除目录还需要具有删除文件权限。
*
* 子目录权限
* I继承: 允许所有子目录继承其父目录具有的相同权限。继承权限适用于大多数情况，但是如果访问必须受限于子文件夹，例如实施强制访问控制（Mandatory Access Control）时，则取消继承并为文件夹逐一授予权限。
*

　　实现代码如下：　　

class User{const I = 1; // inheritconst FD = 2; // folder deleteconst FN = 4; // folder renameconst FC = 8; // folder createconst FL = 16; // folder listconst D = 32; // file deleteconst N = 64; // file renameconst A = 128; // file appendconst W = 256; // file write (upload)const R = 512; // file read (download) private $hash_salt = '';private $user_file;private $group_file;private $users = array();private $groups = array();private $file_hash = ''; public function __construct(){$this->user_file = BASE_PATH.'/conf/users';$this->group_file = BASE_PATH.'/conf/groups';$this->reload();}/*** 返回权限表达式* @param int $access* @return string*/public static function AC($access){$str = '';$char = array('R','W','A','N','D','L','C','N','D','I');for($i = 0; $i < 10; $i++){if($access & pow(2,9-$i))$str.= $char[$i];else $str.= '-';}return $str;}/*** 加载用户数据*/public function reload(){$user_file_hash = md5_file($this->user_file);$group_file_hash = md5_file($this->group_file); if($this->file_hash != md5($user_file_hash.$group_file_hash)){if(($user = file_get_contents($this->user_file)) !== false){$this->users = json_decode($user,true);if($this->users){//folder排序foreach ($this->users as $user=>$profile){if(isset($profile['folder'])){$this->users[$user]['folder'] = $this->sortFolder($profile['folder']);}}}}if(($group = file_get_contents($this->group_file)) !== false){$this->groups = json_decode($group,true);if($this->groups){//folder排序foreach ($this->groups as $group=>$profile){ if(isset($profile['folder'])){ $this->groups[$group]['folder'] = $this->sortFolder($profile['folder']);}}}}$this->file_hash = md5($user_file_hash.$group_file_hash); }}/*** 对folder进行排序* @return array*/private function sortFolder($folder){uasort($folder, function($a,$b){return strnatcmp($a['path'], $b['path']);}); $result = array();foreach ($folder as $v){$result[] = $v;} return $result;}/*** 保存用户数据*/public function save(){file_put_contents($this->user_file, json_encode($this->users),LOCK_EX);file_put_contents($this->group_file, json_encode($this->groups),LOCK_EX);}/*** 添加用户* @param string $user* @param string $pass* @param string $home* @param string $expired* @param boolean $active* @param string $group* @param string $description* @param string $email* @return boolean*/public function addUser($user,$pass,$home,$expired,$active=true,$group='',$description='',$email = ''){$user = strtolower($user);if(isset($this->users[$user]) || empty($user)){return false;} $this->users[$user] = array('pass' => md5($user.$this->hash_salt.$pass),'home' => $home,'expired' => $expired,'active' => $active,'group' => $group,'description' => $description,'email' => $email,);return true;}/*** 设置用户资料* @param string $user* @param array $profile* @return boolean*/public function setUserProfile($user,$profile){$user = strtolower($user);if(is_array($profile) && isset($this->users[$user])){if(isset($profile['pass'])){$profile['pass'] = md5($user.$this->hash_salt.$profile['pass']);}if(isset($profile['active'])){if(!is_bool($profile['active'])){$profile['active'] = $profile['active'] == 'true' ? true : false;}} $this->users[$user] = array_merge($this->users[$user],$profile);return true;}return false;}/*** 获取用户资料* @param string $user* @return multitype:|boolean*/public function getUserProfile($user){$user = strtolower($user);if(isset($this->users[$user])){return $this->users[$user];}return false;}/*** 删除用户* @param string $user* @return boolean*/public function delUser($user){$user = strtolower($user);if(isset($this->users[$user])){unset($this->users[$user]);return true;}return false;}/*** 获取用户列表* @return array*/public function getUserList(){$list = array();if($this->users){foreach ($this->users as $user=>$profile){$list[] = $user;}}sort($list);return $list;}/*** 添加组* @param string $group* @param string $home* @return boolean*/public function addGroup($group,$home){$group = strtolower($group);if(isset($this->groups[$group])){return false;}$this->groups[$group] = array('home' => $home);return true;}/*** 设置组资料* @param string $group* @param array $profile* @return boolean*/public function setGroupProfile($group,$profile){$group = strtolower($group);if(is_array($profile) && isset($this->groups[$group])){$this->groups[$group] = array_merge($this->groups[$group],$profile);return true;}return false;}/*** 获取组资料* @param string $group* @return multitype:|boolean*/public function getGroupProfile($group){$group = strtolower($group);if(isset($this->groups[$group])){return $this->groups[$group];}return false;}/*** 删除组* @param string $group* @return boolean*/public function delGroup($group){$group = strtolower($group);if(isset($this->groups[$group])){unset($this->groups[$group]);foreach ($this->users as $user => $profile){if($profile['group'] == $group)$this->users[$user]['group'] = '';}return true;}return false;}/*** 获取组列表* @return array*/public function getGroupList(){$list = array();if($this->groups){foreach ($this->groups as $group=>$profile){$list[] = $group;}}sort($list);return $list;}/*** 获取组用户列表* @param string $group* @return array*/public function getUserListOfGroup($group){$list = array();if(isset($this->groups[$group]) && $this->users){foreach ($this->users as $user=>$profile){if(isset($profile['group']) && $profile['group'] == $group){$list[] = $user;}}}sort($list);return $list;}/*** 用户验证* @param string $user* @param string $pass* @param string $ip* @return boolean*/public function checkUser($user,$pass,$ip = ''){$this->reload();$user = strtolower($user);if(isset($this->users[$user])){if($this->users[$user]['active'] && time() <= strtotime($this->users[$user]['expired'])&& $this->users[$user]['pass'] == md5($user.$this->hash_salt.$pass)){if(empty($ip)){return true;}else{//ip验证return $this->checkIP($user, $ip);}}else{return false;} }return false;}/*** basic auth * @param string $base64 */public function checkUserBasicAuth($base64){$base64 = trim(str_replace('Basic ', '', $base64));$str = base64_decode($base64);if($str !== false){list($user,$pass) = explode(':', $str,2);$this->reload();$user = strtolower($user);if(isset($this->users[$user])){$group = $this->users[$user]['group'];if($group == 'admin' && $this->users[$user]['active'] && time() <= strtotime($this->users[$user]['expired'])&& $this->users[$user]['pass'] == md5($user.$this->hash_salt.$pass)){ return true;}else{return false;}}}return false;}/*** 用户登录ip验证* @param string $user* @param string $ip* * 用户的ip权限继承组的IP权限。* 匹配规则：* 1.进行组允许列表匹配；* 2.如同通过，进行组拒绝列表匹配；* 3.进行用户允许匹配* 4.如果通过，进行用户拒绝匹配* */public function checkIP($user,$ip){$pass = false;//先进行组验证 $group = $this->users[$user]['group'];//组允许匹配if(isset($this->groups[$group]['ip']['allow'])){foreach ($this->groups[$group]['ip']['allow'] as $addr){$pattern = '/'.str_replace('*','\d+',str_replace('.', '\.', $addr)).'/';if(preg_match($pattern, $ip) && !empty($addr)){$pass = true;break;}}}//如果允许通过，进行拒绝匹配if($pass){if(isset($this->groups[$group]['ip']['deny'])){foreach ($this->groups[$group]['ip']['deny'] as $addr){$pattern = '/'.str_replace('*','\d+',str_replace('.', '\.', $addr)).'/';if(preg_match($pattern, $ip) && !empty($addr)){$pass = false;break;}}}}if(isset($this->users[$user]['ip']['allow'])){ foreach ($this->users[$user]['ip']['allow'] as $addr){$pattern = '/'.str_replace('*','\d+',str_replace('.', '\.', $addr)).'/';if(preg_match($pattern, $ip) && !empty($addr)){$pass = true;break;}}}if($pass){if(isset($this->users[$user]['ip']['deny'])){foreach ($this->users[$user]['ip']['deny'] as $addr){$pattern = '/'.str_replace('*','\d+',str_replace('.', '\.', $addr)).'/';if(preg_match($pattern, $ip) && !empty($addr)){$pass = false;break;}}}}echo date('Y-m-d H:i:s')." [debug]\tIP ACCESS:".' '.($pass?'true':'false')."\n";return $pass;}/*** 获取用户主目录* @param string $user* @return string*/public function getHomeDir($user){$user = strtolower($user);$group = $this->users[$user]['group'];$dir = '';if($group){if(isset($this->groups[$group]['home']))$dir = $this->groups[$group]['home'];}$dir = !empty($this->users[$user]['home'])?$this->users[$user]['home']:$dir;return $dir;}//文件权限判断public function isReadable($user,$path){ $result = $this->getPathAccess($user, $path);if($result['isExactMatch']){return $result['access'][0] == 'R';}else{return $result['access'][0] == 'R' && $result['access'][9] == 'I';}} public function isWritable($user,$path){ $result = $this->getPathAccess($user, $path); if($result['isExactMatch']){return $result['access'][1] == 'W';}else{return $result['access'][1] == 'W' && $result['access'][9] == 'I';}}public function isAppendable($user,$path){$result = $this->getPathAccess($user, $path);if($result['isExactMatch']){return $result['access'][2] == 'A';}else{return $result['access'][2] == 'A' && $result['access'][9] == 'I';}} public function isRenamable($user,$path){$result = $this->getPathAccess($user, $path);if($result['isExactMatch']){return $result['access'][3] == 'N';}else{return $result['access'][3] == 'N' && $result['access'][9] == 'I';}}public function isDeletable($user,$path){ $result = $this->getPathAccess($user, $path);if($result['isExactMatch']){return $result['access'][4] == 'D';}else{return $result['access'][4] == 'D' && $result['access'][9] == 'I';}}//目录权限判断public function isFolderListable($user,$path){$result = $this->getPathAccess($user, $path);if($result['isExactMatch']){return $result['access'][5] == 'L';}else{return $result['access'][5] == 'L' && $result['access'][9] == 'I';}}public function isFolderCreatable($user,$path){$result = $this->getPathAccess($user, $path);if($result['isExactMatch']){return $result['access'][6] == 'C';}else{return $result['access'][6] == 'C' && $result['access'][9] == 'I';}}public function isFolderRenamable($user,$path){$result = $this->getPathAccess($user, $path);if($result['isExactMatch']){return $result['access'][7] == 'N';}else{return $result['access'][7] == 'N' && $result['access'][9] == 'I';}}public function isFolderDeletable($user,$path){$result = $this->getPathAccess($user, $path);if($result['isExactMatch']){return $result['access'][8] == 'D';}else{return $result['access'][8] == 'D' && $result['access'][9] == 'I';}}/*** 获取目录权限* @param string $user* @param string $path* @return array* 进行最长路径匹配* * 返回：* array(* 'access'=>目前权限 * ,'isExactMatch'=>是否精确匹配* * );* * 如果精确匹配，则忽略inherit.* 否则应判断是否继承父目录的权限，* 权限位表：* +---+---+---+---+---+---+---+---+---+---+* | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |* +---+---+---+---+---+---+---+---+---+---+* | R | W | A | N | D | L | C | N | D | I |* +---+---+---+---+---+---+---+---+---+---+* | FILE | FOLDER |* +-------------------+-------------------+*/public function getPathAccess($user,$path){$this->reload();$user = strtolower($user);$group = $this->users[$user]['group']; //去除文件名称$path = str_replace(substr(strrchr($path, '/'),1),'',$path);$access = self::AC(0); $isExactMatch = false;if($group){if(isset($this->groups[$group]['folder'])){ foreach ($this->groups[$group]['folder'] as $f){//中文处理$t_path = iconv('UTF-8','GB18030',$f['path']); if(strpos($path, $t_path) === 0){$access = $f['access']; $isExactMatch = ($path == $t_path?true:false);} }}}if(isset($this->users[$user]['folder'])){foreach ($this->users[$user]['folder'] as $f){//中文处理$t_path = iconv('UTF-8','GB18030',$f['path']);if(strpos($path, $t_path) === 0){$access = $f['access']; $isExactMatch = ($path == $t_path?true:false);}}}echo date('Y-m-d H:i:s')." [debug]\tACCESS:$access ".' '.($isExactMatch?'1':'0')." $path\n";return array('access'=>$access,'isExactMatch'=>$isExactMatch);} /*** 添加在线用户* @param ShareMemory $shm* @param swoole_server $serv* @param unknown $user* @param unknown $fd* @param unknown $ip* @return Ambigous  >*/public function addOnline(ShareMemory $shm ,$serv,$user,$fd,$ip){$shm_data = $shm->read();if($shm_data !== false){$shm_data['online'][$user.'-'.$fd] = array('ip'=>$ip,'time'=>time());$shm_data['last_login'][] = array('user' => $user,'ip'=>$ip,'time'=>time());//清除旧数据if(count($shm_data['last_login'])>30)array_shift($shm_data['last_login']);$list = array();foreach ($shm_data['online'] as $k =>$v){$arr = explode('-', $k);if($serv->connection_info($arr[1]) !== false){$list[$k] = $v;}}$shm_data['online'] = $list;$shm->write($shm_data);}return $shm_data;}/*** 添加登陆失败记录* @param ShareMemory $shm* @param unknown $user* @param unknown $ip* @return Ambigous */public function addAttempt(ShareMemory $shm ,$user,$ip){$shm_data = $shm->read();if($shm_data !== false){if(isset($shm_data['login_attempt'][$ip.'||'.$user]['count'])){$shm_data['login_attempt'][$ip.'||'.$user]['count'] += 1;}else{$shm_data['login_attempt'][$ip.'||'.$user]['count'] = 1;}$shm_data['login_attempt'][$ip.'||'.$user]['time'] = time();//清除旧数据if(count($shm_data['login_attempt'])>30)array_shift($shm_data['login_attempt']);$shm->write($shm_data);}return $shm_data;}/*** 密码错误上限* @param unknown $shm* @param unknown $user* @param unknown $ip* @return boolean*/public function isAttemptLimit(ShareMemory $shm,$user,$ip){$shm_data = $shm->read();if($shm_data !== false){if(isset($shm_data['login_attempt'][$ip.'||'.$user]['count'])){if($shm_data['login_attempt'][$ip.'||'.$user]['count'] > 10 &&time() - $shm_data['login_attempt'][$ip.'||'.$user]['time'] < 600){ return true;}}}return false;}/*** 生成随机密钥* @param int $len* @return Ambigous */public static function genPassword($len){$str = null;$strPol = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz@!#$%*+-";$max = strlen($strPol)-1;for($i=0;$i<$len;$i++){$str.=$strPol[rand(0,$max)];//rand($min,$max)生成介于min和max两个数之间的一个随机整数}return $str;} } 

2.共享内存操作类

　　这个相对简单，使用php的shmop扩展即可。

class ShareMemory{private $mode = 0644;private $shm_key;private $shm_size;/*** 构造函数 */public function __construct(){$key = 'F';$size = 1024*1024;$this->shm_key = ftok(__FILE__,$key);$this->shm_size = $size + 1;}/*** 读取内存数组* @return array|boolean*/public function read(){if(($shm_id = shmop_open($this->shm_key,'c',$this->mode,$this->shm_size)) !== false){$str = shmop_read($shm_id,1,$this->shm_size-1);shmop_close($shm_id);if(($i = strpos($str,"\0")) !== false)$str = substr($str,0,$i);if($str){return json_decode($str,true);}else{return array();}}return false;}/*** 写入数组到内存* @param array $arr* @return int|boolean*/public function write($arr){if(!is_array($arr))return false;$str = json_encode($arr)."\0";if(strlen($str) > $this->shm_size) return false;if(($shm_id = shmop_open($this->shm_key,'c',$this->mode,$this->shm_size)) !== false){ $count = shmop_write($shm_id,$str,1);shmop_close($shm_id);return $count;}return false;}/*** 删除内存块，下次使用时将重新开辟内存块* @return boolean*/public function delete(){if(($shm_id = shmop_open($this->shm_key,'c',$this->mode,$this->shm_size)) !== false){$result = shmop_delete($shm_id);shmop_close($shm_id);return $result;}return false;}} 

3.内置的web服务器类

　　这个主要是嵌入在ftp的http服务器类，功能不是很完善，进行ftp的管理还是可行的。不过需要注意的是，这个实现与apache等其他http服务器运行的方式可能有所不同。代码是驻留内存的。

class CWebServer{protected $buffer_header = array();protected $buffer_maxlen = 65535; //最大POST尺寸const DATE_FORMAT_HTTP = 'D, d-M-Y H:i:s T';const HTTP_EOF = "\r\n\r\n";const HTTP_HEAD_MAXLEN = 8192; //http头最大长度不得超过2kconst HTTP_POST_MAXLEN = 1048576;//1mconst ST_FINISH = 1; //完成，进入处理流程const ST_WAIT = 2; //等待数据const ST_ERROR = 3; //错误，丢弃此包private $requsts = array();private $config = array();public function log($msg,$level = 'debug'){echo date('Y-m-d H:i:s').' ['.$level."]\t" .$msg."\n";}public function __construct($config = array()){$this->config = array('wwwroot' => __DIR__.'/wwwroot/','index' => 'index.php','path_deny' => array('/protected/'), ); }public function onReceive($serv,$fd,$data){ $ret = $this->checkData($fd, $data);switch ($ret){case self::ST_ERROR:$serv->close($fd);$this->cleanBuffer($fd);$this->log('Recevie error.');break;case self::ST_WAIT: $this->log('Recevie wait.');return;default:break;}//开始完整的请求$request = $this->requsts[$fd];$info = $serv->connection_info($fd); $request = $this->parseRequest($request);$request['remote_ip'] = $info['remote_ip'];$response = $this->onRequest($request);$output = $this->parseResponse($request,$response);$serv->send($fd,$output);if(isset($request['head']['Connection']) && strtolower($request['head']['Connection']) == 'close'){$serv->close($fd);}unset($this->requsts[$fd]);$_REQUEST = $_SESSION = $_COOKIE = $_FILES = $_POST = $_SERVER = $_GET = array();}/*** 处理请求* @param array $request* @return array $response* * $request=array(* 'time'=>* 'head'=>array(* 'method'=>* 'path'=>* 'protocol'=>* 'uri'=>* //other http header* '..'=>value* )* 'body'=>* 'get'=>(if appropriate)* 'post'=>(if appropriate)* 'cookie'=>(if appropriate)* * * )*/public function onRequest($request){ if($request['head']['path'][strlen($request['head']['path']) - 1] == '/'){$request['head']['path'] .= $this->config['index'];}$response = $this->process($request);return $response;} /*** 清除数据* @param unknown $fd*/public function cleanBuffer($fd){unset($this->requsts[$fd]);unset($this->buffer_header[$fd]);}/*** 检查数据* @param unknown $fd* @param unknown $data* @return string*/public function checkData($fd,$data){if(isset($this->buffer_header[$fd])){$data = $this->buffer_header[$fd].$data;}$request = $this->checkHeader($fd, $data);//请求头错误if($request === false){$this->buffer_header[$fd] = $data;if(strlen($data) > self::HTTP_HEAD_MAXLEN){return self::ST_ERROR;}else{return self::ST_WAIT;}}//post请求检查if($request['head']['method'] == 'POST'){return $this->checkPost($request);}else{return self::ST_FINISH;} }/*** 检查请求头* @param unknown $fd* @param unknown $data* @return boolean|array*/public function checkHeader($fd, $data){//新的请求if(!isset($this->requsts[$fd])){//http头结束符$ret = strpos($data,self::HTTP_EOF);if($ret === false){return false;}else{$this->buffer_header[$fd] = '';$request = array();list($header,$request['body']) = explode(self::HTTP_EOF, $data,2); $request['head'] = $this->parseHeader($header); $this->requsts[$fd] = $request;if($request['head'] == false){return false;}}}else{//post 数据合并$request = $this->requsts[$fd];$request['body'] .= $data;}return $request;}/*** 解析请求头* @param string $header* @return array* array(* 'method'=>,* 'uri'=>* 'protocol'=>* 'name'=>value,...* * * * }*/public function parseHeader($header){$request = array();$headlines = explode("\r\n", $header);list($request['method'],$request['uri'],$request['protocol']) = explode(' ', $headlines[0],3); foreach ($headlines as $k=>$line){$line = trim($line); if($k && !empty($line) && strpos($line,':') !== false){list($name,$value) = explode(':', $line,2);$request[trim($name)] = trim($value);}} return $request;}/*** 检查post数据是否完整* @param unknown $request* @return string*/public function checkPost($request){if(isset($request['head']['Content-Length'])){if(intval($request['head']['Content-Length']) > self::HTTP_POST_MAXLEN){return self::ST_ERROR;}if(intval($request['head']['Content-Length']) > strlen($request['body'])){return self::ST_WAIT;}else{return self::ST_FINISH;}}return self::ST_ERROR;}/*** 解析请求* @param unknown $request* @return Ambigous */public function parseRequest($request){$request['time'] = time();$url_info = parse_url($request['head']['uri']);$request['head']['path'] = $url_info['path'];if(isset($url_info['fragment']))$request['head']['fragment'] = $url_info['fragment'];if(isset($url_info['query'])){parse_str($url_info['query'],$request['get']);}//parse post bodyif($request['head']['method'] == 'POST'){//目前只处理表单提交 if (isset($request['head']['Content-Type']) && substr($request['head']['Content-Type'], 0, 33) == 'application/x-www-form-urlencoded'|| isset($request['head']['X-Request-With']) && $request['head']['X-Request-With'] == 'XMLHttpRequest'){parse_str($request['body'],$request['post']);}}//parse cookiesif(!empty($request['head']['Cookie'])){$params = array();$blocks = explode(";", $request['head']['Cookie']);foreach ($blocks as $b){$_r = explode("=", $b, 2);if(count($_r)==2){list ($key, $value) = $_r;$params[trim($key)] = trim($value, "\r\n \t\"");}else{$params[$_r[0]] = '';}}$request['cookie'] = $params;}return $request;}public function parseResponse($request,$response){if(!isset($response['head']['Date'])){$response['head']['Date'] = gmdate("D, d M Y H:i:s T");}if(!isset($response['head']['Content-Type'])){$response['head']['Content-Type'] = 'text/html;';}if(!isset($response['head']['Content-Length'])){$response['head']['Content-Length'] = strlen($response['body']);}if(!isset($response['head']['Connection'])){if(isset($request['head']['Connection']) && strtolower($request['head']['Connection']) == 'keep-alive'){$response['head']['Connection'] = 'keep-alive';}else{$response['head']['Connection'] = 'close';} }$response['head']['Server'] = CFtpServer::$software.'/'.CFtpServer::VERSION; $out = '';if(isset($response['head']['Status'])){$out .= 'HTTP/1.1 '.$response['head']['Status']."\r\n";unset($response['head']['Status']);}else{$out .= "HTTP/1.1 200 OK\r\n";}//headersforeach($response['head'] as $k=>$v){$out .= $k.': '.$v."\r\n";}//cookiesif($_COOKIE){ $arr = array();foreach ($_COOKIE as $k => $v){$arr[] = $k.'='.$v; }$out .= 'Set-Cookie: '.implode(';', $arr)."\r\n";}//End$out .= "\r\n";$out .= $response['body'];return $out;}/*** 处理请求* @param unknown $request* @return array*/public function process($request){$path = $request['head']['path'];$isDeny = false;foreach ($this->config['path_deny'] as $p){if(strpos($path, $p) === 0){$isDeny = true;break;}}if($isDeny){return $this->httpError(403, '服务器拒绝访问:路径错误'); }if(!in_array($request['head']['method'],array('GET','POST'))){return $this->httpError(500, '服务器拒绝访问:错误的请求方法');}$file_ext = strtolower(trim(substr(strrchr($path, '.'), 1)));$path = realpath(rtrim($this->config['wwwroot'],'/'). '/' . ltrim($path,'/'));$this->log('WEB:['.$request['head']['method'].'] '.$request['head']['uri'] .' '.json_encode(isset($request['post'])?$request['post']:array()));$response = array();if($file_ext == 'php'){if(is_file($path)){//设置全局变量 if(isset($request['get']))$_GET = $request['get'];if(isset($request['post']))$_POST = $request['post'];if(isset($request['cookie']))$_COOKIE = $request['cookie'];$_REQUEST = array_merge($_GET,$_POST, $_COOKIE); foreach ($request['head'] as $key => $value){$_key = 'HTTP_'.strtoupper(str_replace('-', '_', $key));$_SERVER[$_key] = $value;}$_SERVER['REMOTE_ADDR'] = $request['remote_ip'];$_SERVER['REQUEST_URI'] = $request['head']['uri']; //进行http authif(isset($_GET['c']) && strtolower($_GET['c']) != 'site'){if(isset($request['head']['Authorization'])){$user = new User();if($user->checkUserBasicAuth($request['head']['Authorization'])){$response['head']['Status'] = self::$HTTP_HEADERS[200];goto process;}}$response['head']['Status'] = self::$HTTP_HEADERS[401];$response['head']['WWW-Authenticate'] = 'Basic realm="Real-Data-FTP"'; $_GET['c'] = 'Site';$_GET['a'] = 'Unauthorized'; }process: ob_start(); try{include $path; $response['body'] = ob_get_contents();$response['head']['Content-Type'] = APP::$content_type; }catch (Exception $e){$response = $this->httpError(500, $e->getMessage());}ob_end_clean();}else{$response = $this->httpError(404, '页面不存在');}}else{//处理静态文件if(is_file($path)){$response['head']['Content-Type'] = isset(self::$MIME_TYPES[$file_ext]) ? self::$MIME_TYPES[$file_ext]:"application/octet-stream";//使用缓存if(!isset($request['head']['If-Modified-Since'])){$fstat = stat($path);$expire = 2592000;//30 days$response['head']['Status'] = self::$HTTP_HEADERS[200];$response['head']['Cache-Control'] = "max-age={$expire}";$response['head']['Pragma'] = "max-age={$expire}";$response['head']['Last-Modified'] = date(self::DATE_FORMAT_HTTP, $fstat['mtime']);$response['head']['Expires'] = "max-age={$expire}";$response['body'] = file_get_contents($path);}else{$response['head']['Status'] = self::$HTTP_HEADERS[304];$response['body'] = '';} }else{$response = $this->httpError(404, '页面不存在');} }return $response;}public function httpError($code, $content){$response = array();$version = CFtpServer::$software.'/'.CFtpServer::VERSION; $response['head']['Content-Type'] = 'text/html;charset=utf-8';$response['head']['Status'] = self::$HTTP_HEADERS[$code];$response['body'] = << 
{$content}
{$version} Copyright © 2015 by Real Data All Rights Reserved.html;return $response;}static $HTTP_HEADERS = array(100 => "100 Continue",101 => "101 Switching Protocols",200 => "200 OK",201 => "201 Created",204 => "204 No Content",206 => "206 Partial Content",300 => "300 Multiple Choices",301 => "301 Moved Permanently",302 => "302 Found",303 => "303 See Other",304 => "304 Not Modified",307 => "307 Temporary Redirect",400 => "400 Bad Request",401 => "401 Unauthorized",403 => "403 Forbidden",404 => "404 Not Found",405 => "405 Method Not Allowed",406 => "406 Not Acceptable",408 => "408 Request Timeout",410 => "410 Gone",413 => "413 Request Entity Too Large",414 => "414 Request URI Too Long",415 => "415 Unsupported Media Type",416 => "416 Requested Range Not Satisfiable",417 => "417 Expectation Failed",500 => "500 Internal Server Error",501 => "501 Method Not Implemented",503 => "503 Service Unavailable",506 => "506 Variant Also Negotiates",);static $MIME_TYPES = array( 'jpg' => 'image/jpeg','bmp' => 'image/bmp','ico' => 'image/x-icon','gif' => 'image/gif','png' => 'image/png' ,'bin' => 'application/octet-stream','js' => 'application/javascript','css' => 'text/css' ,'html' => 'text/html' ,'xml' => 'text/xml','tar' => 'application/x-tar' ,'ppt' => 'application/vnd.ms-powerpoint','pdf' => 'application/pdf' ,'svg' => ' image/svg+xml','woff' => 'application/x-font-woff','woff2' => 'application/x-font-woff', ); } 

4.FTP主类

　　有了前面类，就可以在ftp进行引用了。使用ssl时，请注意进行防火墙passive 端口范围的nat配置。　

defined('DEBUG_ON') or define('DEBUG_ON', false);//主目录defined('BASE_PATH') or define('BASE_PATH', __DIR__);require_once BASE_PATH.'/inc/User.php';require_once BASE_PATH.'/inc/ShareMemory.php';require_once BASE_PATH.'/web/CWebServer.php';require_once BASE_PATH.'/inc/CSmtp.php';class CFtpServer{//软件版本const VERSION = '2.0'; const EOF = "\r\n"; public static $software "FTP-Server";private static $server_mode = SWOOLE_PROCESS; private static $pid_file;private static $log_file; //待写入文件的日志队列（缓冲区）private $queue = array();private $pasv_port_range = array(55000,60000);public $host = '0.0.0.0';public $port = 21;public $setting = array();//最大连接数public $max_connection = 50; //web管理端口public $manager_port = 8080;//tlspublic $ftps_port = 990;/*** @var swoole_server*/protected $server;protected $connection = array();protected $session = array();protected $user;//用户类，复制验证与权限//共享内存类protected $shm;//ShareMemory/*** * @var embedded http server*/protected $webserver;/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 静态方法+++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/public static function setPidFile($pid_file){self::$pid_file = $pid_file;}/*** 服务启动控制方法*/public static function start($startFunc){if(empty(self::$pid_file)){exit("Require pid file.\n"); }if(!extension_loaded('posix')){ exit("Require extension `posix`.\n"); }if(!extension_loaded('swoole')){ exit("Require extension `swoole`.\n"); }if(!extension_loaded('shmop')){exit("Require extension `shmop`.\n");}if(!extension_loaded('openssl')){exit("Require extension `openssl`.\n");}$pid_file = self::$pid_file;$server_pid = 0;if(is_file($pid_file)){$server_pid = file_get_contents($pid_file);}global $argv;if(empty($argv[1])){goto usage;}elseif($argv[1] == 'reload'){if (empty($server_pid)){exit("FtpServer is not running\n");}posix_kill($server_pid, SIGUSR1);exit;}elseif ($argv[1] == 'stop'){if (empty($server_pid)){exit("FtpServer is not running\n");}posix_kill($server_pid, SIGTERM);exit;}elseif ($argv[1] == 'start'){//已存在ServerPID，并且进程存在if (!empty($server_pid) and posix_kill($server_pid,(int) 0)){exit("FtpServer is already running.\n");}//启动服务器$startFunc(); }else{usage:exit("Usage: php {$argv[0]} start|stop|reload\n");}}/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 方法+++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/public function __construct($host,$port){$this->user = new User();$this->shm = new ShareMemory();$this->shm->write(array());$flag = SWOOLE_SOCK_TCP;$this->server = new swoole_server($host,$port,self::$server_mode,$flag);$this->host = $host;$this->port = $port;$this->setting = array('backlog' => 128, 'dispatch_mode' => 2,); }public function daemonize(){$this->setting['daemonize'] = 1; }public function getConnectionInfo($fd){return $this->server->connection_info($fd); }/*** 启动服务进程* @param array $setting* @throws Exception*/ public function run($setting = array()){$this->setting = array_merge($this->setting,$setting); //不使用swoole的默认日志if(isset($this->setting['log_file'])){self::$log_file = $this->setting['log_file'];unset($this->setting['log_file']);} if(isset($this->setting['max_connection'])){$this->max_connection = $this->setting['max_connection'];unset($this->setting['max_connection']);}if(isset($this->setting['manager_port'])){$this->manager_port = $this->setting['manager_port'];unset($this->setting['manager_port']);}if(isset($this->setting['ftps_port'])){$this->ftps_port = $this->setting['ftps_port'];unset($this->setting['ftps_port']);}if(isset($this->setting['passive_port_range'])){$this->pasv_port_range = $this->setting['passive_port_range'];unset($this->setting['passive_port_range']);} $this->server->set($this->setting);$version = explode('.', SWOOLE_VERSION);if($version[0] == 1 && $version[1] < 7 && $version[2] <20){throw new Exception('Swoole version require 1.7.20 +.');}//事件绑定$this->server->on('start',array($this,'onMasterStart'));$this->server->on('shutdown',array($this,'onMasterStop'));$this->server->on('ManagerStart',array($this,'onManagerStart'));$this->server->on('ManagerStop',array($this,'onManagerStop'));$this->server->on('WorkerStart',array($this,'onWorkerStart'));$this->server->on('WorkerStop',array($this,'onWorkerStop'));$this->server->on('WorkerError',array($this,'onWorkerError'));$this->server->on('Connect',array($this,'onConnect'));$this->server->on('Receive',array($this,'onReceive'));$this->server->on('Close',array($this,'onClose'));//管理端口$this->server->addlistener($this->host,$this->manager_port,SWOOLE_SOCK_TCP);//tls$this->server->addlistener($this->host,$this->ftps_port,SWOOLE_SOCK_TCP | SWOOLE_SSL);$this->server->start();}public function log($msg,$level = 'debug',$flush = false){ if(DEBUG_ON){$log = date('Y-m-d H:i:s').' ['.$level."]\t" .$msg."\n";if(!empty(self::$log_file)){$debug_file = dirname(self::$log_file).'/debug.log'; file_put_contents($debug_file, $log,FILE_APPEND);if(filesize($debug_file) > 10485760){//10Munlink($debug_file);}}echo $log; }if($level != 'debug'){//日志记录 $this->queue[] = date('Y-m-d H:i:s')."\t[".$level."]\t".$msg; } if(count($this->queue)>10 && !empty(self::$log_file) || $flush){if (filesize(self::$log_file) > 209715200){ //200M rename(self::$log_f