php python ftp操作类

php python ftp操作类

class Ftp {

    //FTP 连接资源
    private $link;

    //FTP连接时间
    public $link_time;

    //错误代码
    private $err_code = 0;

    //传送模式{文本模式:FTP_ASCII, 二进制模式:FTP_BINARY}
    public $mode = FTP_BINARY;

	/**
		初始化类

	**/
	public function start($data)
	{
		if(empty($data['port'])) $data['port'] ='21';
		if(empty($data['pasv'])) $data['pasv'] =false;
		if(empty($data['ssl'])) $data['ssl'] = false;
		if(empty($data['timeout'])) $data['timeout'] = 30;
		return $this->connect($data['server'],$data['username'],$data['password'],$data['port'],$data['pasv'],$data['ssl'],$data['timeout']);
	}

    /**
     * 连接FTP服务器
     * @param string $host    　　 服务器地址
     * @param string $username　　　用户名
     * @param string $password　　　密码
     * @param integer $port　　　　   服务器端口，默认值为21
     * @param boolean $pasv        是否开启被动模式
     * @param boolean $ssl　　　　 　是否使用SSL连接
     * @param integer $timeout     超时时间
     */
    public function connect($host, $username = '', $password = '', $port = '21', $pasv = false, $ssl = false, $timeout = 30) {
        $start = time();
        if ($ssl) {
            if (!$this->link = @ftp_ssl_connect($host, $port, $timeout)) {
                $this->err_code = 1;
                return false;
            }
        } else {
            if (!$this->link = @ftp_connect($host, $port, $timeout)) {
                $this->err_code = 1;
                return false;
            }
        }

        if (@ftp_login($this->link, $username, $password)) {
            if ($pasv)
                ftp_pasv($this->link, true);
            $this->link_time = time() - $start;
            return true;
        } else {
            $this->err_code = 1;
            return false;
        }
        register_shutdown_function(array(&$this, 'close'));
    }

    /**
     * 创建文件夹
     * @param string $dirname 目录名，
     */
    public function mkdir($dirname) {
        if (!$this->link) {
            $this->err_code = 2;
            return false;
        }
        $dirname = $this->ck_dirname($dirname);
        $nowdir = '/';
        foreach ($dirname as $v) {
            if ($v && !$this->chdir($nowdir . $v)) {
                if ($nowdir)
                    $this->chdir($nowdir);
                @ftp_mkdir($this->link, $v);
            }
            if ($v)
                $nowdir .= $v . '/';
        }
        return true;
    }

    /**
     * 上传文件
     * @param string $remote 远程存放地址
     * @param string $local 本地存放地址
     */
    public function put($remote, $local) {
        if (!$this->link) {
            $this->err_code = 2;
            return false;
        }
        $dirname = pathinfo($remote, PATHINFO_DIRNAME);
        if (!$this->chdir($dirname)) {
            $this->mkdir($dirname);
        }
        if (@ftp_put($this->link, $remote, $local, $this->mode)) {
            return true;
        } else {
            $this->err_code = 7;
            return false;
        }
    }

    /**
     * 删除文件夹
     * @param string $dirname  目录地址
     * @param boolean $enforce 强制删除
     */
    public function rmdir($dirname, $enforce = false) {
        if (!$this->link) {
            $this->err_code = 2;
            return false;
        }
        $list = $this->nlist($dirname);
        if ($list && $enforce) {
            $this->chdir($dirname);
            foreach ($list as $v) {
                $this->f_delete($v);
            }
        } elseif ($list && !$enforce) {
            $this->err_code = 3;
            return false;
        }
        @ftp_rmdir($this->link, $dirname);
        return true;
    }

    /**
     * 删除指定文件
     * @param string $filename 文件名
     */
    public function delete($filename) {
        if (!$this->link) {
            $this->err_code = 2;
            return false;
        }
        if (@ftp_delete($this->link, $filename)) {
            return true;
        } else {
            $this->err_code = 4;
            return false;
        }
    }

    /**
     * 返回给定目录的文件列表
     * @param string $dirname  目录地址
     * @return array 文件列表数据
     */
    public function nlist($dirname) {
        if (!$this->link) {
            $this->err_code = 2;
            return false;
        }
        if ($list = @ftp_nlist($this->link, $dirname)) {
            return $list;
        } else {
            $this->err_code = 5;
            return false;
        }
    }

    /**
     * 在 FTP 服务器上改变当前目录
     * @param string $dirname 修改服务器上当前目录
     */
    public function chdir($dirname) {
        if (!$this->link) {
            $this->err_code = 2;
            return false;
        }
        if (@ftp_chdir($this->link, $dirname)) {
            return true;
        } else {
            $this->err_code = 6;
            return false;
        }
    }

    /**
     * 获取错误信息
     */
    public function get_error() {
        if (!$this->err_code)
            return false;
        $err_msg = array(
            '1' => 'Server can not connect',
            '2' => 'Not connect to server',
            '3' => 'Can not delete non-empty folder',
            '4' => 'Can not delete file',
            '5' => 'Can not get file list',
            '6' => 'Can not change the current directory on the server',
            '7' => 'Can not upload files'
        );
        return $err_msg[$this->err_code];
    }

    /**
     * 检测目录名
     * @param string $url 目录
     * @return 由 / 分开的返回数组
     */
    private function ck_dirname($url) {
        $url = str_replace('', '/', $url);
        $urls = explode('/', $url);
        return $urls;
    }

    /**
     * 关闭FTP连接
     */

    public function close() {
        return @ftp_close($this->link);
    }

}

#!/usr/bin/python
#coding=gbk
'''
	ftp自动下载、自动上传脚本，可以递归目录操作
'''

from ftplib import FTP
import os,sys,string,datetime,time
import socket

class MYFTP:
	def __init__(self, hostaddr, username, password, remotedir, port=21):
		self.hostaddr = hostaddr
		self.username = username
		self.password = password
		self.remotedir  = remotedir
		self.port     = port
		self.ftp      = FTP()
		self.file_list = []
		# self.ftp.set_debuglevel(2)
	def __del__(self):
		self.ftp.close()
		# self.ftp.set_debuglevel(0)
	def login(self):
		ftp = self.ftp
		try:
			timeout = 60
			socket.setdefaulttimeout(timeout)
			ftp.set_pasv(True)
			print '开始连接到 %s' %(self.hostaddr)
			ftp.connect(self.hostaddr, self.port)
			print '成功连接到 %s' %(self.hostaddr)
			print '开始登录到 %s' %(self.hostaddr)
			ftp.login(self.username, self.password)
			print '成功登录到 %s' %(self.hostaddr)
			debug_print(ftp.getwelcome())
		except Exception:
			deal_error("连接或登录失败")
		try:
			ftp.cwd(self.remotedir)
		except(Exception):
			deal_error('切换目录失败')

	def is_same_size(self, localfile, remotefile):
		try:
			remotefile_size = self.ftp.size(remotefile)
		except:
			remotefile_size = -1
		try:
			localfile_size = os.path.getsize(localfile)
		except:
			localfile_size = -1
		debug_print('lo:%d  re:%d' %(localfile_size, remotefile_size),)
		if remotefile_size == localfile_size:
		 	return 1
		else:
			return 0
	def download_file(self, localfile, remotefile):
		if self.is_same_size(localfile, remotefile):
		 	debug_print('%s 文件大小相同，无需下载' %localfile)
		 	return
		else:
			debug_print('>>>>>>>>>>>>下载文件 %s ... ...' %localfile)
		#return
		file_handler = open(localfile, 'wb')
		self.ftp.retrbinary('RETR %s'%(remotefile), file_handler.write)
		file_handler.close()

	def download_files(self, localdir='./', remotedir='./'):
		try:
			self.ftp.cwd(remotedir)
		except:
			debug_print('目录%s不存在，继续...' %remotedir)
			return
		if not os.path.isdir(localdir):
			os.makedirs(localdir)
		debug_print('切换至目录 %s' %self.ftp.pwd())
		self.file_list = []
		self.ftp.dir(self.get_file_list)
		remotenames = self.file_list
		#print(remotenames)
		#return
		for item in remotenames:
			filetype = item[0]
			filename = item[1]
			local = os.path.join(localdir, filename)
			if filetype == 'd':
				self.download_files(local, filename)
			elif filetype == '-':
				self.download_file(local, filename)
		self.ftp.cwd('..')
		debug_print('返回上层目录 %s' %self.ftp.pwd())
	def upload_file(self, localfile, remotefile):
		if not os.path.isfile(localfile):
			return
		if self.is_same_size(localfile, remotefile):
		 	debug_print('跳过[相等]: %s' %localfile)
		 	return
		file_handler = open(localfile, 'rb')
		self.ftp.storbinary('STOR %s' %remotefile, file_handler)
		file_handler.close()
		debug_print('已传送: %s' %localfile)
	def upload_files(self, localdir='./', remotedir = './'):
		if not os.path.isdir(localdir):
			return
		localnames = os.listdir(localdir)
		self.ftp.cwd(remotedir)
		for item in localnames:
			src = os.path.join(localdir, item)
			if os.path.isdir(src):
				try:
					self.ftp.mkd(item)
				except:
					debug_print('目录已存在 %s' %item)
				self.upload_files(src, item)
			else:
				self.upload_file(src, item)
		self.ftp.cwd('..')

	def get_file_list(self, line):
		ret_arr = []
		file_arr = self.get_filename(line)
		if file_arr[1] not in ['.', '..']:
			self.file_list.append(file_arr)

	def get_filename(self, line):
		pos = line.rfind(':')
		while(line[pos] != ' '):
			pos += 1
		while(line[pos] == ' '):
			pos += 1
		file_arr = [line[0], line[pos:]]
		return file_arr
def debug_print(s):
	print (s)
def deal_error(e):
	timenow  = time.localtime()
	datenow  = time.strftime('%Y-%m-%d', timenow)
	logstr = '%s 发生错误: %s' %(datenow, e)
	debug_print(logstr)
	file.write(logstr)
	sys.exit()

if __name__ == '__main__':
	file = open("log.txt", "a")
	timenow  = time.localtime()
	datenow  = time.strftime('%Y-%m-%d', timenow)
	logstr = datenow
	# 配置如下变量
	hostaddr = 'localhost' # ftp地址
	username = 'test' # 用户名
	password = 'test' # 密码
	port  =  21   # 端口号
	rootdir_local  = '.' + os.sep + 'bak/' # 本地目录
	rootdir_remote = './'          # 远程目录

	f = MYFTP(hostaddr, username, password, rootdir_remote, port)
	f.login()
	f.download_files(rootdir_local, rootdir_remote)

	timenow  = time.localtime()
	datenow  = time.strftime('%Y-%m-%d', timenow)
	logstr += " - %s 成功执行了备份\n" %datenow
	debug_print(logstr)

	file.write(logstr)
	file.close()