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使用PHP如何实现高效安全的ftp服务器(二)

转载 作者：qq735679552 更新时间：2022-09-28 22:32:09 25 4
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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:

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* 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：　　 。

  。

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class User{
const I = 1; // inherit
const FD = 2; // folder delete
const FN = 4; // folder rename
const FC = 8; // folder create
const FL = 16; // folder list
const D = 32; // file delete
const N = 64; // file rename
const A = 128; // file append
const 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 <multitype:, boolean, mixed, multitype:unknown number multitype:Ambigous <unknown, number> >
*/
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 <number, multitype:, boolean, mixed>
*/
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 <NULL, string>
*/
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.

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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.

  。

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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2k
const HTTP_POST_MAXLEN = 1048576; //1m
const 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 <unknown, mixed, multitype:string >
*/
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 body
if ( $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 cookies
if (! 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;charset=utf-8' ;
}
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" ;
}
//headers
foreach ( $response [ 'head' ] as $k => $v ){
$out .= $k . ': ' . $v . "\r\n" ;
}
//cookies
if ( $_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 auth
if (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' ] = <<<html
<!DOCTYPE html>
<html lang= "zh-CN" >
<head>
<meta charset= "utf-8" >
<title>FTP后台管理 </title>
</head>
<body>
<p>{ $content }</p>
<div style= "text-align:center" >
<hr>
{ $version } Copyright & copy ; 2015 by <a target= '_new' href= 'http://www.realdatamed.com' >Real Data</a> All Rights Reserved.
</div>
</body>
</html>
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。　 。

?
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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;
//tls
public $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){ //10M
unlink( $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_file ,self:: $log_file . '.' . date ( 'His' ));
}
$logs = '' ;
foreach ( $this ->queue as $q ){
$logs .= $q . "\n" ;
}
file_put_contents (self:: $log_file , $logs ,FILE_APPEND);
$this ->queue = array ();
}
}
public function shutdown(){
return $this ->server->shutdown();
}
public function close( $fd ){
return $this ->server->close( $fd );
}
public function send( $fd , $data ){
$data = strtr ( $data , array ( "\n" => "" , "\0" => "" , "\r" => "" ));
$this ->log( "[-->]\t" . $data );
return $this ->server->send( $fd , $data .self::EOF);
}
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ 事件回调
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
public function onMasterStart( $serv ){
global $argv ;
swoole_set_process_name( 'php ' . $argv [0]. ': master -host=' . $this ->host. ' -port=' . $this ->port. '/' . $this ->manager_port);
if (! empty ( $this ->setting[ 'pid_file' ])){
file_put_contents (self:: $pid_file , $serv ->master_pid);
}
$this ->log( 'Master started.' );
}
public function onMasterStop( $serv ){
if (! empty ( $this ->setting[ 'pid_file' ])){
unlink(self:: $pid_file );
}
$this ->shm-> delete ();
$this ->log( 'Master stop.' );
}
public function onManagerStart( $serv ){
global $argv ;
swoole_set_process_name( 'php ' . $argv [0]. ': manager' );
$this ->log( 'Manager started.' );
}
public function onManagerStop( $serv ){
$this ->log( 'Manager stop.' );
}
public function onWorkerStart( $serv , $worker_id ){
global $argv ;
if ( $worker_id >= $serv ->setting[ 'worker_num' ]) {
swoole_set_process_name( "php {$argv[0]}: worker [task]" );
} else {
swoole_set_process_name( "php {$argv[0]}: worker [{$worker_id}]" );
}
$this ->log( "Worker {$worker_id} started." );
}
public function onWorkerStop( $serv , $worker_id ){
$this ->log( "Worker {$worker_id} stop." );
}
public function onWorkerError( $serv , $worker_id , $worker_pid , $exit_code ){
$this ->log( "Worker {$worker_id} error:{$exit_code}." );
}
public function onConnect( $serv , $fd , $from_id ){
$info = $this ->getConnectionInfo( $fd );
if ( $info [ 'server_port' ] == $this ->manager_port){
//web请求
$this ->webserver = new CWebServer();
} else {
$this ->send( $fd , "220---------- Welcome to " . self:: $software . " ----------" );
$this ->send( $fd , "220-Local time is now " . date ( "H:i" ));
$this ->send( $fd , "220 This is a private system - No anonymous login" );
if ( count ( $this ->server->connections) <= $this ->max_connection){
if ( $info [ 'server_port' ] == $this ->port && isset( $this ->setting[ 'force_ssl' ]) && $this ->setting[ 'force_ssl' ]){
//如果启用强制ssl
$this ->send( $fd , "421 Require implicit FTP over tls, closing control connection." );
$this ->close( $fd );
return ;
}
$this ->connection[ $fd ] = array ();
$this ->session = array ();
$this ->queue = array ();
} else {
$this ->send( $fd , "421 Too many connections, closing control connection." );
$this ->close( $fd );
}
}
}
public function onReceive( $serv , $fd , $from_id , $recv_data ){
$info = $this ->getConnectionInfo( $fd );
if ( $info [ 'server_port' ] == $this ->manager_port){
//web请求
$this ->webserver->onReceive( $this ->server, $fd , $recv_data );
} else {
$read = trim( $recv_data );
$this ->log( "[<--]\t" . $read );
$cmd = explode ( " " , $read );
$func = 'cmd_' . strtoupper ( $cmd [0]);
$data = trim( str_replace ( $cmd [0], '' , $read ));
if (!method_exists( $this , $func )){
$this ->send( $fd , "500 Unknown Command" );
return ;
}
if ( empty ( $this ->connection[ $fd ][ 'login' ])){
switch ( $cmd [0]){
case 'TYPE' :
case 'USER' :
case 'PASS' :
case 'QUIT' :
case 'AUTH' :
case 'PBSZ' :
break ;
default :
$this ->send( $fd , "530 You aren't logged in" );
return ;
}
}
$this -> $func ( $fd , $data );
}
}
public function onClose( $serv , $fd , $from_id ){
//在线用户
$shm_data = $this ->shm->read();
if ( $shm_data !== false){
if (isset( $shm_data [ 'online' ])){
$list = array ();
foreach ( $shm_data [ 'online' ] as $u => $info ){
if (!preg_match( '/\.*-' . $fd . '$/' , $u , $m ))
$list [ $u ] = $info ;
}
$shm_data [ 'online' ] = $list ;
$this ->shm->write( $shm_data );
}
}
$this ->log( 'Socket ' . $fd . ' close. Flush the logs.' , 'debug' ,true);
}
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ 工具函数
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
/**
* 获取用户名
* @param $fd
*/
public function getUser( $fd ){
return isset( $this ->connection[ $fd ][ 'user' ])? $this ->connection[ $fd ][ 'user' ]: '' ;
}
/**
* 获取文件全路径
* @param $user
* @param $file
* @return string|boolean
*/
public function getFile( $user , $file ){
$file = $this ->fillDirName( $user , $file );
if ( is_file ( $file )){
return realpath ( $file );
} else {
return false;
}
}
/**
* 遍历目录
* @param $rdir
* @param $showHidden
* @param $format list/mlsd
* @return string
*
* list 使用local时间
* mlsd 使用gmt时间
*/
public function getFileList( $user , $rdir , $showHidden = false, $format = 'list' ){
$filelist = '' ;
if ( $format == 'mlsd' ){
$stats = stat( $rdir );
$filelist .= 'Type=cdir;Modify=' . gmdate ( 'YmdHis' , $stats [ 'mtime' ]). ';UNIX.mode=d' . $this ->mode2char( $stats [ 'mode' ]). '; ' . $this ->getUserDir( $user ). "\r\n" ;
}
if ( $handle = opendir( $rdir )){
$isListable = $this ->user->isFolderListable( $user , $rdir );
while (false !== ( $file = readdir( $handle ))){
if ( $file == '.' or $file == '..' ){
continue ;
}
if ( $file {0} == "." and ! $showHidden ){
continue ;
}
//如果当前目录$rdir不允许列出，则判断当前目录下的目录是否配置为可以列出
if (! $isListable ){
$dir = $rdir . $file ;
if ( is_dir ( $dir )){
$dir = $this ->joinPath( $dir , '/' );
if ( $this ->user->isFolderListable( $user , $dir )){
goto listFolder;
}
}
continue ;
}
listFolder:
$stats = stat( $rdir . $file );
if ( is_dir ( $rdir . "/" . $file )) $mode = "d" ; else $mode = "-" ;
$mode .= $this ->mode2char( $stats [ 'mode' ]);
if ( $format == 'mlsd' ){
if ( $mode [0] == 'd' ){
$filelist .= 'Type=dir;Modify=' . gmdate ( 'YmdHis' , $stats [ 'mtime' ]). ';UNIX.mode=' . $mode . '; ' . $file . "\r\n" ;
} else {
$filelist .= 'Type=file;Size=' . $stats [ 'size' ]. ';Modify=' . gmdate ( 'YmdHis' , $stats [ 'mtime' ]). ';UNIX.mode=' . $mode . '; ' . $file . "\r\n" ;
}
} else {
$uidfill = "" ;
for ( $i = strlen ( $stats [ 'uid' ]); $i < 5; $i ++) $uidfill .= " " ;
$gidfill = "" ;
for ( $i = strlen ( $stats [ 'gid' ]); $i < 5; $i ++) $gidfill .= " " ;
$sizefill = "" ;
for ( $i = strlen ( $stats [ 'size' ]); $i < 11; $i ++) $sizefill .= " " ;
$nlinkfill = "" ;
for ( $i = strlen ( $stats [ 'nlink' ]); $i < 5; $i ++) $nlinkfill .= " " ;
$mtime = date ( "M d H:i" , $stats [ 'mtime' ]);
$filelist .= $mode . $nlinkfill . $stats [ 'nlink' ] . " " . $stats [ 'uid' ] . $uidfill . $stats [ 'gid' ] . $gidfill . $sizefill . $stats [ 'size' ] . " " . $mtime . " " . $file . "\r\n" ;
}
}
closedir ( $handle );
}
return $filelist ;
}
/**
* 将文件的全新从数字转换为字符串
* @param int $int
*/
public function mode2char( $int ){
$mode = '' ;
$moded = sprintf( "%o" , ( $int & 000777));
$mode1 = substr ( $moded , 0, 1);
$mode2 = substr ( $moded , 1, 1);
$mode3 = substr ( $moded , 2, 1);
switch ( $mode1 ) {
case "0" :
$mode .= "---" ;
break ;
case "1" :
$mode .= "--x" ;
break ;
case "2" :
$mode .= "-w-" ;
break ;
case "3" :
$mode .= "-wx" ;
break ;
case "4" :
$mode .= "r--" ;
break ;
case "5" :
$mode .= "r-x" ;
break ;
case "6" :
$mode .= "rw-" ;
break ;
case "7" :
$mode .= "rwx" ;
break ;
}
switch ( $mode2 ) {
case "0" :
$mode .= "---" ;
break ;
case "1" :
$mode .= "--x" ;
break ;
case "2" :
$mode .= "-w-" ;
break ;
case "3" :
$mode .= "-wx" ;
break ;
case "4" :
$mode .= "r--" ;
break ;
case "5" :
$mode .= "r-x" ;
break ;
case "6" :
$mode .= "rw-" ;
break ;
case "7" :
$mode .= "rwx" ;
break ;
}
switch ( $mode3 ) {
case "0" :
$mode .= "---" ;
break ;
case "1" :
$mode .= "--x" ;
break ;
case "2" :
$mode .= "-w-" ;
break ;
case "3" :
$mode .= "-wx" ;
break ;
case "4" :
$mode .= "r--" ;
break ;
case "5" :
$mode .= "r-x" ;
break ;
case "6" :
$mode .= "rw-" ;
break ;
case "7" :
$mode .= "rwx" ;
break ;
}
return $mode ;
}
/**
* 设置用户当前的路径
* @param $user
* @param $pwd
*/
public function setUserDir( $user , $cdir ){
$old_dir = $this ->session[ $user ][ 'pwd' ];
if ( $old_dir == $cdir ){
return $cdir ;
}
if ( $cdir [0] != '/' )
$cdir = $this ->joinPath( $old_dir , $cdir );
$this ->session[ $user ][ 'pwd' ] = $cdir ;
$abs_dir = realpath ( $this ->getAbsDir( $user ));
if (! $abs_dir ){
$this ->session[ $user ][ 'pwd' ] = $old_dir ;
return false;
}
$this ->session[ $user ][ 'pwd' ] = $this ->joinPath( '/' , substr ( $abs_dir , strlen ( $this ->session[ $user ][ 'home' ])));
$this ->session[ $user ][ 'pwd' ] = $this ->joinPath( $this ->session[ $user ][ 'pwd' ], '/' );
$this ->log( "CHDIR: $old_dir -> $cdir" );
return $this ->session[ $user ][ 'pwd' ];
}
/**
* 获取全路径
* @param $user
* @param $file
* @return string
*/
public function fillDirName( $user , $file ){
if ( substr ( $file , 0, 1) != "/" ){
$file = '/' . $file ;
$file = $this ->joinPath( $this ->getUserDir( $user ), $file );
}
$file = $this ->joinPath( $this ->session[ $user ][ 'home' ], $file );
return $file ;
}
/**
* 获取用户路径
* @param unknown $user
*/
public function getUserDir( $user ){
return $this ->session[ $user ][ 'pwd' ];
}
/**
* 获取用户的当前文件系统绝对路径，非chroot路径
* @param $user
* @return string
*/
public function getAbsDir( $user ){
$rdir = $this ->joinPath( $this ->session[ $user ][ 'home' ], $this ->session[ $user ][ 'pwd' ]);
return $rdir ;
}
/**
* 路径连接
* @param string $path1
* @param string $path2
* @return string
*/
public function joinPath( $path1 , $path2 ){
$path1 = rtrim( $path1 , '/' );
$path2 = trim( $path2 , '/' );
return $path1 . '/' . $path2 ;
}
/**
* IP判断
* @param string $ip
* @return boolean
*/
public function isIPAddress( $ip ){
if (! is_numeric ( $ip [0]) || $ip [0] < 1 || $ip [0] > 254) {
return false;
} elseif (! is_numeric ( $ip [1]) || $ip [1] < 0 || $ip [1] > 254) {
return false;
} elseif (! is_numeric ( $ip [2]) || $ip [2] < 0 || $ip [2] > 254) {
return false;
} elseif (! is_numeric ( $ip [3]) || $ip [3] < 1 || $ip [3] > 254) {
return false;
} elseif (! is_numeric ( $ip [4]) || $ip [4] < 1 || $ip [4] > 500) {
return false;
} elseif (! is_numeric ( $ip [5]) || $ip [5] < 1 || $ip [5] > 500) {
return false;
} else {
return true;
}
}
/**
* 获取pasv端口
* @return number
*/
public function getPasvPort(){
$min = is_int ( $this ->pasv_port_range[0])? $this ->pasv_port_range[0]:55000;
$max = is_int ( $this ->pasv_port_range[1])? $this ->pasv_port_range[1]:60000;
$max = $max <= 65535 ? $max : 65535;
$loop = 0;
$port = 0;
while ( $loop < 10){
$port = mt_rand( $min , $max );
if ( $this ->isAvailablePasvPort( $port )){
break ;
}
$loop ++;
}
return $port ;
}
public function pushPasvPort( $port ){
$shm_data = $this ->shm->read();
if ( $shm_data !== false){
if (isset( $shm_data [ 'pasv_port' ])){
array_push ( $shm_data [ 'pasv_port' ], $port );
} else {
$shm_data [ 'pasv_port' ] = array ( $port );
}
$this ->shm->write( $shm_data );
$this ->log( 'Push pasv port: ' .implode( ',' , $shm_data [ 'pasv_port' ]));
return true;
}
return false;
}
public function popPasvPort( $port ){
$shm_data = $this ->shm->read();
if ( $shm_data !== false){
if (isset( $shm_data [ 'pasv_port' ])){
$tmp = array ();
foreach ( $shm_data [ 'pasv_port' ] as $p ){
if ( $p != $port ){
$tmp [] = $p ;
}
}
$shm_data [ 'pasv_port' ] = $tmp ;
}
$this ->shm->write( $shm_data );
$this ->log( 'Pop pasv port: ' .implode( ',' , $shm_data [ 'pasv_port' ]));
return true;
}
return false;
}
public function isAvailablePasvPort( $port ){
$shm_data = $this ->shm->read();
if ( $shm_data !== false){
if (isset( $shm_data [ 'pasv_port' ])){
return !in_array( $port , $shm_data [ 'pasv_port' ]);
}
return true;
}
return false;
}
/**
* 获取当前数据链接tcp个数
*/
public function getDataConnections(){
$shm_data = $this ->shm->read();
if ( $shm_data !== false){
if (isset( $shm_data [ 'pasv_port' ])){
return count ( $shm_data [ 'pasv_port' ]);
}
}
return 0;
}
/**
* 关闭数据传输socket
* @param $user
* @return bool
*/
public function closeUserSock( $user ){
$peer = stream_socket_get_name( $this ->session[ $user ][ 'sock' ], false);
list( $ip , $port ) = explode ( ':' , $peer );
//释放端口占用
$this ->popPasvPort( $port );
fclose( $this ->session[ $user ][ 'sock' ]);
$this ->session[ $user ][ 'sock' ] = 0;
return true;
}
/**
* @param $user
* @return resource
*/
public function getUserSock( $user ){
//被动模式
if ( $this ->session[ $user ][ 'pasv' ] == true){
if ( empty ( $this ->session[ $user ][ 'sock' ])){
$addr = stream_socket_get_name( $this ->session[ $user ][ 'serv_sock' ], false);
list( $ip , $port ) = explode ( ':' , $addr );
$sock = stream_socket_accept( $this ->session[ $user ][ 'serv_sock' ], 5);
if ( $sock ){
$peer = stream_socket_get_name( $sock , true);
$this ->log( "Accept: success client is $peer." );
$this ->session[ $user ][ 'sock' ] = $sock ;
//关闭server socket
fclose( $this ->session[ $user ][ 'serv_sock' ]);
} else {
$this ->log( "Accept: failed." );
//释放端口
$this ->popPasvPort( $port );
return false;
}
}
}
return $this ->session[ $user ][ 'sock' ];
}
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ FTP Command
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
//==================
//RFC959
//==================
/**
* 登录用户名
* @param $fd
* @param $data
*/
public function cmd_USER( $fd , $data ){
if (preg_match( "/^([a-z0-9.@]+)$/" , $data )){
$user = strtolower ( $data );
$this ->connection[ $fd ][ 'user' ] = $user ;
$this ->send( $fd , "331 User $user OK. Password required" );
} else {
$this ->send( $fd , "530 Login authentication failed" );
}
}
/**
* 登录密码
* @param $fd
* @param $data
*/
public function cmd_PASS( $fd , $data ){
$user = $this ->connection[ $fd ][ 'user' ];
$pass = $data ;
$info = $this ->getConnectionInfo( $fd );
$ip = $info [ 'remote_ip' ];
//判断登陆失败次数
if ( $this ->user->isAttemptLimit( $this ->shm, $user , $ip )){
$this ->send( $fd , "530 Login authentication failed: Too many login attempts. Blocked in 10 minutes." );
return ;
}
if ( $this ->user->checkUser( $user , $pass , $ip )){
$dir = "/" ;
$this ->session[ $user ][ 'pwd' ] = $dir ;
//ftp根目录
$this ->session[ $user ][ 'home' ] = $this ->user->getHomeDir( $user );
if ( empty ( $this ->session[ $user ][ 'home' ]) || ! is_dir ( $this ->session[ $user ][ 'home' ])){
$this ->send( $fd , "530 Login authentication failed: `home` path error." );
} else {
$this ->connection[ $fd ][ 'login' ] = true;
//在线用户
$shm_data = $this ->user->addOnline( $this ->shm, $this ->server, $user , $fd , $ip );
$this ->log( 'SHM: ' .json_encode( $shm_data ) );
$this ->send( $fd , "230 OK. Current restricted directory is " . $dir );
$this ->log( 'User ' . $user . ' has login successfully! IP: ' . $ip , 'warn' );
}
} else {
$this ->user->addAttempt( $this ->shm, $user , $ip );
$this ->log( 'User ' . $user . ' login fail! IP: ' . $ip , 'warn' );
$this ->send( $fd , "530 Login authentication failed: check your pass or ip allow rules." );
}
}
/**
* 更改当前目录
* @param $fd
* @param $data
*/
public function cmd_CWD( $fd , $data ){
$user = $this ->getUser( $fd );
if (( $dir = $this ->setUserDir( $user , $data )) != false){
$this ->send( $fd , "250 OK. Current directory is " . $dir );
} else {
$this ->send( $fd , "550 Can't change directory to " . $data . ": No such file or directory" );
}
}
/**
* 返回上级目录
* @param $fd
* @param $data
*/
public function cmd_CDUP( $fd , $data ){
$data = '..' ;
$this ->cmd_CWD( $fd , $data );
}
/**
* 退出服务器
* @param $fd
* @param $data
*/
public function cmd_QUIT( $fd , $data ){
$this ->send( $fd , "221 Goodbye." );
unset( $this ->connection[ $fd ]);
}
/**
* 获取当前目录
* @param $fd
* @param $data
*/
public function cmd_PWD( $fd , $data ){
$user = $this ->getUser( $fd );
$this ->send( $fd , "257 \"" . $this ->getUserDir( $user ) . "\" is your current location" );
}
/**
* 下载文件
* @param $fd
* @param $data
*/
public function cmd_RETR( $fd , $data ){
$user = $this ->getUser( $fd );
$ftpsock = $this ->getUserSock( $user );
if (! $ftpsock ){
$this ->send( $fd , "425 Connection Error" );
return ;
}
if (( $file = $this ->getFile( $user , $data )) != false){
if ( $this ->user->isReadable( $user , $file )){
$this ->send( $fd , "150 Connecting to client" );
if ( $fp = fopen ( $file , "rb" )){
//断点续传
if (isset( $this ->session[ $user ][ 'rest_offset' ])){
if (! fseek ( $fp , $this ->session[ $user ][ 'rest_offset' ])){
$this ->log( "RETR at offset " . ftell ( $fp ));
} else {
$this ->log( "RETR at offset " . ftell ( $fp ). ' fail.' );
}
unset( $this ->session[ $user ][ 'rest_offset' ]);
}
while (! feof ( $fp )){
$cont = fread ( $fp , 8192);
if (!fwrite( $ftpsock , $cont )) break ;
}
if (fclose( $fp ) and $this ->closeUserSock( $user )){
$this ->send( $fd , "226 File successfully transferred" );
$this ->log( $user . "\tGET:" . $file , 'info' );
} else {
$this ->send( $fd , "550 Error during file-transfer" );
}
} else {
$this ->send( $fd , "550 Can't open " . $data . ": Permission denied" );
}
} else {
$this ->send( $fd , "550 You're unauthorized: Permission denied" );
}
} else {
$this ->send( $fd , "550 Can't open " . $data . ": No such file or directory" );
}
}
/**
* 上传文件
* @param $fd
* @param $data
*/
public function cmd_STOR( $fd , $data ){
$user = $this ->getUser( $fd );
$ftpsock = $this ->getUserSock( $user );
if (! $ftpsock ){
$this ->send( $fd , "425 Connection Error" );
return ;
}
$file = $this ->fillDirName( $user , $data );
$isExist = false;
if ( file_exists ( $file )) $isExist = true;
if ((! $isExist && $this ->user->isWritable( $user , $file )) ||
( $isExist && $this ->user->isAppendable( $user , $file ))){
if ( $isExist ){
$fp = fopen ( $file , "rb+" );
$this ->log( "OPEN for STOR." );
} else {
$fp = fopen ( $file , 'wb' );
$this ->log( "CREATE for STOR." );
}
if (! $fp ){
$this ->send( $fd , "553 Can't open that file: Permission denied" );
} else {
//断点续传，需要Append权限
if (isset( $this ->session[ $user ][ 'rest_offset' ])){
if (! fseek ( $fp , $this ->session[ $user ][ 'rest_offset' ])){
$this ->log( "STOR at offset " . ftell ( $fp ));
} else {
$this ->log( "STOR at offset " . ftell ( $fp ). ' fail.' );
}
unset( $this ->session[ $user ][ 'rest_offset' ]);
}
$this ->send( $fd , "150 Connecting to client" );
while (! feof ( $ftpsock )){
$cont = fread ( $ftpsock , 8192);
if (! $cont ) break ;
if (!fwrite( $fp , $cont )) break ;
}
touch( $file ); //设定文件的访问和修改时间
if (fclose( $fp ) and $this ->closeUserSock( $user )){
$this ->send( $fd , "226 File successfully transferred" );
$this ->log( $user . "\tPUT: $file" , 'info' );
} else {
$this ->send( $fd , "550 Error during file-transfer" );
}
}
} else {
$this ->send( $fd , "550 You're unauthorized: Permission denied" );
$this ->closeUserSock( $user );
}
}
/**
* 文件追加
* @param $fd
* @param $data
*/
public function cmd_APPE( $fd , $data ){
$user = $this ->getUser( $fd );
$ftpsock = $this ->getUserSock( $user );
if (! $ftpsock ){
$this ->send( $fd , "425 Connection Error" );
return ;
}
$file = $this ->fillDirName( $user , $data );
$isExist = false;
if ( file_exists ( $file )) $isExist = true;
if ((! $isExist && $this ->user->isWritable( $user , $file )) ||
( $isExist && $this ->user->isAppendable( $user , $file ))){
$fp = fopen ( $file , "rb+" );
if (! $fp ){
$this ->send( $fd , "553 Can't open that file: Permission denied" );
} else {
//断点续传，需要Append权限
if (isset( $this ->session[ $user ][ 'rest_offset' ])){
if (! fseek ( $fp , $this ->session[ $user ][ 'rest_offset' ])){
$this ->log( "APPE at offset " . ftell ( $fp ));
} else {
$this ->log( "APPE at offset " . ftell ( $fp ). ' fail.' );
}
unset( $this ->session[ $user ][ 'rest_offset' ]);
}
$this ->send( $fd , "150 Connecting to client" );
while (! feof ( $ftpsock )){
$cont = fread ( $ftpsock , 8192);
if (! $cont ) break ;
if (!fwrite( $fp , $cont )) break ;
}
touch( $file ); //设定文件的访问和修改时间
if (fclose( $fp ) and $this ->closeUserSock( $user )){
$this ->send( $fd , "226 File successfully transferred" );
$this ->log( $user . "\tAPPE: $file" , 'info' );
} else {
$this ->send( $fd , "550 Error during file-transfer" );
}
}
} else {
$this ->send( $fd , "550 You're unauthorized: Permission denied" );
$this ->closeUserSock( $user );
}
}
/**
* 文件重命名,源文件
* @param $fd
* @param $data
*/
public function cmd_RNFR( $fd , $data ){
$user = $this ->getUser( $fd );
$file = $this ->fillDirName( $user , $data );
if ( file_exists ( $file ) || is_dir ( $file )){
$this ->session[ $user ][ 'rename' ] = $file ;
$this ->send( $fd , "350 RNFR accepted - file exists, ready for destination" );
} else {
$this ->send( $fd , "550 Sorry, but that '$data' doesn't exist" );
}
}
/**
* 文件重命名,目标文件
* @param $fd
* @param $data
*/
public function cmd_RNTO( $fd , $data ){
$user = $this ->getUser( $fd );
$old_file = $this ->session[ $user ][ 'rename' ];
$new_file = $this ->fillDirName( $user , $data );
$isDir = false;
if ( is_dir ( $old_file )){
$isDir = true;
$old_file = $this ->joinPath( $old_file , '/' );
}
if ((! $isDir && $this ->user->isRenamable( $user , $old_file )) ||
( $isDir && $this ->user->isFolderRenamable( $user , $old_file ))){
if ( empty ( $old_file ) or ! is_dir (dirname( $new_file ))){
$this ->send( $fd , "451 Rename/move failure: No such file or directory" );
} elseif (rename( $old_file , $new_file )){
$this ->send( $fd , "250 File successfully renamed or moved" );
$this ->log( $user . "\tRENAME: $old_file to $new_file" , 'warn' );
} else {
$this ->send( $fd , "451 Rename/move failure: Operation not permitted" );
}
} else {
$this ->send( $fd , "550 You're unauthorized: Permission denied" );
}
unset( $this ->session[ $user ][ 'rename' ]);
}
/**
* 删除文件
* @param $fd
* @param $data
*/
public function cmd_DELE( $fd , $data ){
$user = $this ->getUser( $fd );
$file = $this ->fillDirName( $user , $data );
if ( $this ->user->isDeletable( $user , $file )){
if (! file_exists ( $file )){
$this ->send( $fd , "550 Could not delete " . $data . ": No such file or directory" );
}
elseif (unlink( $file )){
$this ->send( $fd , "250 Deleted " . $data );
$this ->log( $user . "\tDEL: $file" , 'warn' );
} else {
$this ->send( $fd , "550 Could not delete " . $data . ": Permission denied" );
}
} else {
$this ->send( $fd , "550 You're unauthorized: Permission denied" );
}
}
/**
* 创建目录
* @param $fd
* @param $data
*/
public function cmd_MKD( $fd , $data ){
$user = $this ->getUser( $fd );
$path = '' ;
if ( $data [0] == '/' ){
$path = $this ->joinPath( $this ->session[ $user ][ 'home' ], $data );
} else {
$path = $this ->joinPath( $this ->getAbsDir( $user ), $data );
}
$path = $this ->joinPath( $path , '/' );
if ( $this ->user->isFolderCreatable( $user , $path )){
if (! is_dir (dirname( $path ))){
$this ->send( $fd , "550 Can't create directory: No such file or directory" );
} elseif ( file_exists ( $path )){
$this ->send( $fd , "550 Can't create directory: File exists" );
} else {
if ( mkdir ( $path )){
$this ->send( $fd , "257 \"" . $data . "\" : The directory was successfully created" );
$this ->log( $user . "\tMKDIR: $path" , 'info' );
} else {
$this ->send( $fd , "550 Can't create directory: Permission denied" );
}
}
} else {
$this ->send( $fd , "550 You're unauthorized: Permission denied" );
}
}
/**
* 删除目录
* @param $fd
* @param $data
*/
public function cmd_RMD( $fd , $data ){
$user = $this ->getUser( $fd );
$dir = '' ;
if ( $data [0] == '/' ){
$dir = $this ->joinPath( $this ->session[ $user ][ 'home' ], $data );
} else {
$dir = $this ->fillDirName( $user , $data );
}
$dir = $this ->joinPath( $dir , '/' );
if ( $this ->user->isFolderDeletable( $user , $dir )){
if ( is_dir (dirname( $dir )) and is_dir ( $dir )){
if ( count ( glob ( $dir . "/*" ))){
$this ->send( $fd , "550 Can't remove directory: Directory not empty" );
} elseif ( rmdir ( $dir )){
$this ->send( $fd , "250 The directory was successfully removed" );
$this ->log( $user . "\tRMDIR: $dir" , 'warn' );
} else {
$this ->send( $fd , "550 Can't remove directory: Operation not permitted" );
}
} elseif ( is_dir (dirname( $dir )) and file_exists ( $dir )){
$this ->send( $fd , "550 Can't remove directory: Not a directory" );
} else {
$this ->send( $fd , "550 Can't create directory: No such file or directory" );
}
} else {
$this ->send( $fd , "550 You're unauthorized: Permission denied" );
}
}
/**
* 得到服务器类型
* @param $fd
* @param $data
*/
public function cmd_SYST( $fd , $data ){
$this ->send( $fd , "215 UNIX Type: L8" );
}
/**
* 权限控制
* @param $fd
* @param $data
*/
public function cmd_SITE( $fd , $data ){
if ( substr ( $data , 0, 6) == "CHMOD " ){
$user = $this ->getUser( $fd );
$chmod = explode ( " " , $data , 3);
$file = $this ->fillDirName( $user , $chmod [2]);
if ( $this ->user->isWritable( $user , $file )){
if ( chmod ( $file , octdec( $chmod [1]))){
$this ->send( $fd , "200 Permissions changed on {$chmod[2]}" );
$this ->log( $user . "\tCHMOD: $file to {$chmod[1]}" , 'info' );
} else {
$this ->send( $fd , "550 Could not change perms on " . $chmod [2] . ": Permission denied" );
}
} else {
$this ->send( $fd , "550 You're unauthorized: Permission denied" );
}
} else {
$this ->send( $fd , "500 Unknown Command" );
}
}
/**
* 更改传输类型
* @param $fd
* @param $data
*/
public function cmd_TYPE( $fd , $data ){
switch ( $data ){
case "A" :
$type = "ASCII" ;
break ;
case "I" :
$type = "8-bit binary" ;
break ;
}
$this ->send( $fd , "200 TYPE is now " . $type );
}
/**
* 遍历目录
* @param $fd
* @param $data
*/
public function cmd_LIST( $fd , $data ){
$user = $this ->getUser( $fd );
$ftpsock = $this ->getUserSock( $user );
if (! $ftpsock ){
$this ->send( $fd , "425 Connection Error" );
return ;
}
$path = $this ->joinPath( $this ->getAbsDir( $user ), '/' );
$this ->send( $fd , "150 Opening ASCII mode data connection for file list" );
$filelist = $this ->getFileList( $user , $path , true);
fwrite( $ftpsock , $filelist );
$this ->send( $fd , "226 Transfer complete." );
$this ->closeUserSock( $user );
}
/**
* 建立数据传输通
* @param $fd
* @param $data
*/
// 不使用主动模式
// public function cmd_PORT($fd, $data){
// $user = $this->getUser($fd);
// $port = explode(",", $data);
// if (count($port) != 6){
// $this->send($fd, "501 Syntax error in IP address");
// }else{
// if (!$this->isIPAddress($port)){
// $this->send($fd, "501 Syntax error in IP address");
// return;
// }
// $ip = $port[0] . "." . $port[1] . "." . $port[2] . "." . $port[3];
// $port = hexdec(dechex($port[4]) . dechex($port[5]));
// if ($port < 1024){
// $this->send($fd, "501 Sorry, but I won't connect to ports < 1024");
// }elseif ($port > 65000){
// $this->send($fd, "501 Sorry, but I won't connect to ports > 65000");
// }else{
// $ftpsock = fsockopen($ip, $port);
// if ($ftpsock){
// $this->session[$user]['sock'] = $ftpsock;
// $this->session[$user]['pasv'] = false;
// $this->send($fd, "200 PORT command successful");
// }else{
// $this->send($fd, "501 Connection failed");
// }
// }
// }
// }
/**
* 被动模式
* @param unknown $fd
* @param unknown $data
*/
public function cmd_PASV( $fd , $data ){
$user = $this ->getUser( $fd );
$ssl = false;
$pasv_port = $this ->getPasvPort();
if ( $this ->connection[ $fd ][ 'ssl' ] === true){
$ssl = true;
$context = stream_context_create();
// local_cert must be in PEM format
stream_context_set_option( $context , 'ssl' , 'local_cert' , $this ->setting[ 'ssl_cert_file' ]);
// Path to local private key file
stream_context_set_option( $context , 'ssl' , 'local_pk' , $this ->setting[ 'ssl_key_file' ]);
stream_context_set_option( $context , 'ssl' , 'allow_self_signed' , true);
stream_context_set_option( $context , 'ssl' , 'verify_peer' , false);
stream_context_set_option( $context , 'ssl' , 'verify_peer_name' , false);
stream_context_set_option( $context , 'ssl' , 'passphrase' , '' );
// Create the server socket
$sock = stream_socket_server( 'ssl://0.0.0.0:' . $pasv_port , $errno , $errstr , STREAM_SERVER_BIND | STREAM_SERVER_LISTEN, $context );
} else {
$sock = stream_socket_server( 'tcp://0.0.0.0:' . $pasv_port , $errno , $errstr , STREAM_SERVER_BIND | STREAM_SERVER_LISTEN);
}
if ( $sock ){
$addr = stream_socket_get_name( $sock , false);
list( $ip , $port ) = explode ( ':' , $addr );
$ipArr = swoole_get_local_ip();
foreach ( $ipArr as $nic => $addr ){
$ip = $addr ;
}
$this ->log( "ServerSock: $ip:$port" );
$ip = str_replace ( '.' , ',' , $ip );
$this ->send( $fd , "227 Entering Passive Mode ({$ip}," .( intval ( $port ) >> 8 & 0xff). "," .( intval ( $port ) & 0xff). "). " . $port . " " .( $ssl ? 'ssl' : '' ));
$this ->session[ $user ][ 'serv_sock' ] = $sock ;
$this ->session[ $user ][ 'pasv' ] = true;
$this ->pushPasvPort( $port );
} else {
fclose( $sock );
$this ->send( $fd , "500 failed to create data socket: " . $errstr );
}
}
public function cmd_NOOP( $fd , $data ){
$this ->send( $fd , "200 OK" );
}
//==================
//RFC2228
//==================
public function cmd_PBSZ( $fd , $data ){
$this ->send( $fd , '200 Command okay.' );
}
public function cmd_PROT( $fd , $data ){
if (trim( $data ) == 'P' ){
$this ->connection[ $fd ][ 'ssl' ] = true;
$this ->send( $fd , '200 Set Private level on data connection.' );
} elseif (trim( $data ) == 'C' ){
$this ->connection[ $fd ][ 'ssl' ] = false;
$this ->send( $fd , '200 Set Clear level on data connection.' );
} else {
$this ->send( $fd , '504 Command not implemented for that parameter.' );
}
}
//==================
//RFC2389
//==================
public function cmd_FEAT( $fd , $data ){
$this ->send( $fd , '211-Features supported' );
$this ->send( $fd , 'MDTM' );
$this ->send( $fd , 'SIZE' );
$this ->send( $fd , 'SITE CHMOD' );
$this ->send( $fd , 'REST STREAM' );
$this ->send( $fd , 'MLSD Type*;Size*;Modify*;UNIX.mode*;' );
$this ->send( $fd , 'PBSZ' );
$this ->send( $fd , 'PROT' );
$this ->send( $fd , '211 End' );
}
//关闭utf8对中文文件名有影响
public function cmd_OPTS( $fd , $data ){
$this ->send( $fd , '502 Command not implemented.' );
}
//==================
//RFC3659
//==================
/**
* 获取文件修改时间
* @param unknown $fd
* @param unknown $data
*/
public function cmd_MDTM( $fd , $data ){
$user = $this ->getUser( $fd );
if (( $file = $this ->getFile( $user , $data )) != false){
$this ->send( $fd , '213 ' . date ( 'YmdHis.u' , filemtime ( $file )));
} else {
$this ->send( $fd , '550 No file named "' . $data . '"' );
}
}
/**
* 获取文件大小
* @param $fd
* @param $data
*/
public function cmd_SIZE( $fd , $data ){
$user = $this ->getUser( $fd );
if (( $file = $this ->getFile( $user , $data )) != false){
$this ->send( $fd , '213 ' . filesize ( $file ));
} else {
$this ->send( $fd , '550 No file named "' . $data . '"' );
}
}
/**
* 获取文件列表
* @param unknown $fd
* @param unknown $data
*/
public function cmd_MLSD( $fd , $data ){
$user = $this ->getUser( $fd );
$ftpsock = $this ->getUserSock( $user );
if (! $ftpsock ){
$this ->send( $fd , "425 Connection Error" );
return ;
}
$path = $this ->joinPath( $this ->getAbsDir( $user ), '/' );
$this ->send( $fd , "150 Opening ASCII mode data connection for file list" );
$filelist = $this ->getFileList( $user , $path , true, 'mlsd' );
fwrite( $ftpsock , $filelist );
$this ->send( $fd , "226 Transfer complete." );
$this ->closeUserSock( $user );
}
/**
* 设置文件offset
* @param unknown $fd
* @param unknown $data
*/
public function cmd_REST( $fd , $data ){
$user = $this ->getUser( $fd );
$data = preg_replace( '/[^0-9]/' , '' , $data );
if ( $data != '' ){
$this ->session[ $user ][ 'rest_offset' ] = $data ;
$this ->send( $fd , '350 Restarting at ' . $data . '. Send STOR or RETR' );
} else {
$this ->send( $fd , '500 Syntax error, offset unrecognized.' );
}
}
/**
* 获取文件hash值
* @param unknown $fd
* @param unknown $data
*/
public function cmd_HASH( $fd , $data ){
$user = $this ->getUser( $fd );
$ftpsock = $this ->getUserSock( $user );
if (( $file = $this ->getFile( $user , $data )) != false){
if ( is_file ( $file )){
$algo = 'sha512' ;
$this ->send( $fd , "200 " .hash_file( $algo , $file ));
} else {
$this ->send( $fd , "550 Can't open " . $data . ": No such file。" );
}
} else {
$this ->send( $fd , "550 Can't open " . $data . ": No such file。" );
}
}
/**
* 控制台命令
* @param unknown $fd
* @param unknown $data
*/
public function cmd_CONSOLE( $fd , $data ){
$group = $this ->user->getUserProfile( $this ->getUser( $fd ));
$group = $group [ 'group' ];
if ( $group != 'admin' ){
$this ->send( $fd , "550 You're unauthorized: Permission denied" );
return ;
}
$data = explode ( '||' , $data );
$cmd = strtoupper ( $data [0]);
switch ( $cmd ){
case 'USER-ONLINE' :
$shm_data = $this ->shm->read();
$list = array ();
if ( $shm_data !== false){
if (isset( $shm_data [ 'online' ])){
$list = $shm_data [ 'online' ];
}
}
$this ->send( $fd , '200 ' .json_encode( $list ));
break ;
//Format: user-add||{"user":"","pass":"","home":"","expired":"","active":boolean,"group":"","description":"","email":""}
case 'USER-ADD' :
if (isset( $data [1])){
$json = json_decode(trim( $data [1]),true);
$user = isset( $json [ 'user' ])? $json [ 'user' ]: '' ;
$pass = isset( $json [ 'pass' ])? $json [ 'pass' ]: '' ;
$home = isset( $json [ 'home' ])? $json [ 'home' ]: '' ;
$expired = isset( $json [ 'expired' ])? $json [ 'expired' ]: '1999-01-01' ;
$active = isset( $json [ 'active' ])? $json [ 'active' ]:false;
$group = isset( $json [ 'group' ])? $json [ 'group' ]: '' ;
$description = isset( $json [ 'description' ])? $json [ 'description' ]: '' ;
$email = isset( $json [ 'email' ])? $json [ 'email' ]: '' ;
if ( $this ->user->addUser( $user , $pass , $home , $expired , $active , $group , $description , $email )){
$this ->user->save();
$this ->user->reload();
$this ->send( $fd , '200 User "' . $user . '" added.' );
} else {
$this ->send( $fd , '550 Add fail!' );
}
} else {
$this ->send( $fd , '500 Syntax error: USER-ADD||{"user":"","pass":"","home":"","expired":"","active":boolean,"group":"","description":""}' );
}
break ;
//Format: user-set-profile||{"user":"","profile":[]}
case 'USER-SET-PROFILE' :
if (isset( $data [1])){
$json = json_decode(trim( $data [1]),true);
$user = isset( $json [ 'user' ])? $json [ 'user' ]: '' ;
$profile = isset( $json [ 'profile' ])? $json [ 'profile' ]: array ();
if ( $this ->user->setUserProfile( $user , $profile )){
$this ->user->save();
$this ->user->reload();
$this ->send( $fd , '200 User "' . $user . '" profile changed.' );
} else {
$this ->send( $fd , '550 Set profile fail!' );
}
} else {
$this ->send( $fd , '500 Syntax error: USER-SET-PROFILE||{"user":"","profile":[]}' );
}
break ;
//Format: user-get-profile||{"user":""}
case 'USER-GET-PROFILE' :
if (isset( $data [1])){
$json = json_decode(trim( $data [1]),true);
$user = isset( $json [ 'user' ])? $json [ 'user' ]: '' ;
$this ->user->reload();
if ( $profile = $this ->user->getUserProfile( $user )){
$this ->send( $fd , '200 ' .json_encode( $profile ));
} else {
$this ->send( $fd , '550 Get profile fail!' );
}
} else {
$this ->send( $fd , '500 Syntax error: USER-GET-PROFILE||{"user":""}' );
}
break ;
//Format: user-delete||{"user":""}
case 'USER-DELETE' :
if (isset( $data [1])){
$json = json_decode(trim( $data [1]),true);
$user = isset( $json [ 'user' ])? $json [ 'user' ]: '' ;
if ( $this ->user->delUser( $user )){
$this ->user->save();
$this ->user->reload();
$this ->send( $fd , '200 User ' . $user . ' deleted.' );
} else {
$this ->send( $fd , '550 Delete user fail!' );
}
} else {
$this ->send( $fd , '500 Syntax error: USER-DELETE||{"user":""}' );
}
break ;
case 'USER-LIST' :
$this ->user->reload();
$list = $this ->user->getUserList();
$this ->send( $fd , '200 ' .json_encode( $list ));
break ;
//Format: group-add||{"group":"","home":""}
case 'GROUP-ADD' :
if (isset( $data [1])){
$json = json_decode(trim( $data [1]),true);
$group = isset( $json [ 'group' ])? $json [ 'group' ]: '' ;
$home = isset( $json [ 'home' ])? $json [ 'home' ]: '' ;
if ( $this ->user->addGroup( $group , $home )){
$this ->user->save();
$this ->user->reload();
$this ->send( $fd , '200 Group "' . $group . '" added.' );
} else {
$this ->send( $fd , '550 Add group fail!' );
}
} else {
$this ->send( $fd , '500 Syntax error: GROUP-ADD||{"group":"","home":""}' );
}
break ;
//Format: group-set-profile||{"group":"","profile":[]}
case 'GROUP-SET-PROFILE' :
if (isset( $data [1])){
$json = json_decode(trim( $data [1]),true);
$group = isset( $json [ 'group' ])? $json [ 'group' ]: '' ;
$profile = isset( $json [ 'profile' ])? $json [ 'profile' ]: array ();
if ( $this ->user->setGroupProfile( $group , $profile )){
$this ->user->save();
$this ->user->reload();
$this ->send( $fd , '200 Group "' . $group . '" profile changed.' );
} else {
$this ->send( $fd , '550 Set profile fail!' );
}
} else {
$this ->send( $fd , '500 Syntax error: GROUP-SET-PROFILE||{"group":"","profile":[]}' );
}
break ;
//Format: group-get-profile||{"group":""}
case 'GROUP-GET-PROFILE' :
if (isset( $data [1])){
$json = json_decode(trim( $data [1]),true);
$group = isset( $json [ 'group' ])? $json [ 'group' ]: '' ;
$this ->user->reload();
if ( $profile = $this ->user->getGroupProfile( $group )){
$this ->send( $fd , '200 ' .json_encode( $profile ));
} else {
$this ->send( $fd , '550 Get profile fail!' );
}
} else {
$this ->send( $fd , '500 Syntax error: GROUP-GET-PROFILE||{"group":""}' );
}
break ;
//Format: group-delete||{"group":""}
case 'GROUP-DELETE' :
if (isset( $data [1])){
$json = json_decode(trim( $data [1]),true);
$group = isset( $json [ 'group' ])? $json [ 'group' ]: '' ;
if ( $this ->user->delGroup( $group )){
$this ->user->save();
$this ->user->reload();
$this ->send( $fd , '200 Group ' . $group . ' deleted.' );
} else {
$this ->send( $fd , '550 Delete group fail!' );
}
} else {
$this ->send( $fd , '500 Syntax error: GROUP-DELETE||{"group":""}' );
}
break ;
case 'GROUP-LIST' :
$this ->user->reload();
$list = $this ->user->getGroupList();
$this ->send( $fd , '200 ' .json_encode( $list ));
break ;
//获取组用户列表
//Format: group-user-list||{"group":""}
case 'GROUP-USER-LIST' :
if (isset( $data [1])){
$json = json_decode(trim( $data [1]),true);
$group = isset( $json [ 'group' ])? $json [ 'group' ]: '' ;
$this ->user->reload();
$this ->send( $fd , '200 ' .json_encode( $this ->user->getUserListOfGroup( $group )));
} else {
$this ->send( $fd , '500 Syntax error: GROUP-USER-LIST||{"group":""}' );
}
break ;
// 获取磁盘空间
//Format: disk-total||{"path":""}
case 'DISK-TOTAL' :
if (isset( $data [1])){
$json = json_decode(trim( $data [1]),true);
$path = isset( $json [ 'path' ])? $json [ 'path' ]: '' ;
$size = 0;
if ( $path ){
$size = disk_total_space( $path );
}
$this ->send( $fd , '200 ' . $size );
} else {
$this ->send( $fd , '500 Syntax error: DISK-TOTAL||{"path":""}' );
}
break ;
// 获取磁盘空间
//Format: disk-total||{"path":""}
case 'DISK-FREE' :
if (isset( $data [1])){
$json = json_decode(trim( $data [1]),true);
$path = isset( $json [ 'path' ])? $json [ 'path' ]: '' ;
$size = 0;
if ( $path ){
$size = disk_free_space( $path );
}
$this ->send( $fd , '200 ' . $size );
} else {
$this ->send( $fd , '500 Syntax error: DISK-FREE||{"path":""}' );
}
break ;
case 'HELP' :
$list = 'USER-ONLINE USER-ADD USER-SET-PROFILE USER-GET-PROFILE USER-DELETE USER-LIST GROUP-ADD GROUP-SET-PROFILE GROUP-GET-PROFILE GROUP-DELETE GROUP-LIST GROUP-USER-LIST DISK-TOTAL DISK-FREE' ;
$this ->send( $fd , '200 ' . $list );
break ;
default :
$this ->send( $fd , '500 Syntax error.' );
}
}
}

总结:

至此，我们就可以实现一个完整的ftp服务器了。这个服务器的功能可以进行完全个性化定制。如果您有好的建议，也可以留言给我，谢谢.

最后此篇关于使用PHP如何实现高效安全的ftp服务器(二)的文章就讲到这里了,如果你想了解更多关于使用PHP如何实现高效安全的ftp服务器(二)的内容请搜索CFSDN的文章或继续浏览相关文章，希望大家以后支持我的博客！ 。

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