Python3 实现FTP功能
- 目录结构：
FTP_project/
├── FTP_client
│ ├── ftp_client.py
│ └── __init__.py
└── FTP_server
├── bin
│ ├── ftp_server.py
│ └── __init__.py
├── conf
│ ├── accounts.cfg
│ ├── __init__.py
│ ├── __pycache__
│ │ ├── __init__.cpython-36.pyc
│ │ └── settings.cpython-36.pyc
│ └── settings.py
├── core
│ ├── __init__.py
│ ├── main.py
│ ├── __pycache__
│ │ ├── __init__.cpython-36.pyc
│ │ ├── main.cpython-36.pyc
│ │ └── server.cpython-36.pyc
│ └── server.py
├── home
│ ├── __init__.py
│ ├── monitor
│ │ └── __init__.py
│ └── root
└── logger
└── __init__.py
- 代码相关
import optparse, socket
import configparser
import json
import os, sys STATUS_CODE = {
250 : "Invalid cmd format, e.g: {'action':'get','filename':'test.py','size':344}",
251 : "Invalid cmd ",
252 : "Invalid auth data",
253 : "Wrong username or password",
254 : "Passed authentication", 800 : "the file exist,but not enough ,is continue? ",
801 : "the file exist !",
802 : " ready to receive datas", 900 : "md5 valdate success" } class ClientHandler(): def __init__(self):
# 解析python FTP_client 后面接的参数
self.op = optparse.OptionParser() self.op.add_option('-s','--server',dest='server')
self.op.add_option('-P','--port',dest='port')
self.op.add_option('-u','--username',dest='username')
self.op.add_option('-p','--password',dest='password')
# options（定义的参数），args（未定义的参数）
self.options, self.args = self.op.parse_args()
self.verify_args(self.options, self.args)
self.make_connecton()
self.mainPath = os.path.dirname(os.path.abspath(__file__))
self.last = 0 def verify_args(self, options, args):
server = options.server
port = options.port
username = options.username
password = options.password
if int(port) > 0 and int(port) < 65535:
return True
else:
exit('The port is in 0-65535') def make_connecton(self):
self.sock = socket.socket()
self.sock.connect((self.options.server, int(self.options.port))) def interaction(self): #登陆函数
print('begin to interaction....')
#验证登陆信息
if self.authenticate():
while 1:
cmd_info = input('[%s]' %self.current_dir).strip() # put 12.png images cmd_list = cmd_info.split()
if hasattr(self, cmd_list[0]):
func = getattr(self, cmd_list[0])
func(*cmd_list)
else:
print('Commond is not found!') def authenticate(self): # 账号密码输入
if self.options.username is None or self.options.password is None:
username = input('username: ')
password = input('password: ')
return self.get_auth_result(username,password)
return self.get_auth_result(self.options.username, self.options.password) def response(self):
data = self.sock.recv(1024).decode('utf8')
data = json.loads(data)
return data def get_auth_result(self, user, pwd):
data = {
'action':'auth',
'username':user,
'password':pwd
} self.sock.send(json.dumps(data).encode('utf8'))
response = self.response()
print('response:' ,response['status_code'])
if response['status_code'] == 254:
self.user = user
self.current_dir = user
print(STATUS_CODE[254])
return True
else:
print(STATUS_CODE[response['status_code']]) def put(self, *cmd_list):
# put file_name 路径
action, local_path, target_path=cmd_list
local_path = os.path.join(self.mainPath, local_path ) file_name = os.path.basename(local_path)
file_size = os.stat(local_path).st_size data = {
'action':'put',
'file_name':file_name,
'file_size':file_size,
'target_path':target_path
} self.sock.send(json.dumps(data).encode('utf8'))
is_exist = self.sock.recv(1024).decode('utf8')
##########################
has_sent = 0
if is_exist == '':
# 文件不完整
choice = input('The file exist,but not enouth,is continue? [Y/N]').strip()
if choice.upper() == 'Y':
self.sock.sendall('Y'.encode('utf8'))
continue_position = self.sock.recv(1024).decode('utf8')
has_sent += int(continue_position)
else:
self.sock.sendall('N'.encode('utf8')) elif is_exist == '':
# 文件完全存在
print('The file exist!')
return
else:
pass f = open(local_path, 'rb')
while has_sent < file_size:
data = f.read(1024)
self.sock.sendall(data)
has_sent += len(data)
self.show_progress(has_sent, file_size)
f.close()
print('put success') def show_progress(self, has, total):
rate = float(has)/float(total)
rate_num = int(rate * 100)
if self.last != rate_num:
sys.stdout.write('%s%% %s\r' %(rate_num,'#'*rate_num))
self.last = rate_num def ls(self, *cmd_list):
data = {'action':'ls'}
self.sock.sendall(json.dumps(data).encode('utf8'))
data = self.sock.recv(1024).decode('utf8')
print(data) def cd(self, *cmd_list):
# cd images
data = {
'action':'cd',
'dirname':cmd_list[1]
}
self.sock.send(json.dumps(data).encode('utf8'))
data = self.sock.recv(1024).decode('utf8')
if data != 'Directory is not exist!':
self.current_dir = os.path.basename(data)
else:
print(data) def mkdir(self, *cmd_list):
data = {
'action':'mkdir',
'dirname':cmd_list[1]
} self.sock.sendall(json.dumps(data).encode('utf8'))
ret = self.sock.recv(1024).decode('utf8')
print(ret) def rm(self, *cmd_list):
data = {
'action':'rm',
'file_name':cmd_list[1]
}
self.sock.send(json.dumps(data).encode('utf8'))
data = self.sock.recv(1024).decode('utf8')
print(data) def pwd(self, *cmd_list):
data = {'action':'pwd'}
self.sock.sendall(json.dumps(data).encode('utf8'))
data = self.sock.recv(1024).decode('utf8')
print(data) def quit(self, *cmd_list):
data = {'action':'quit'} ch = ClientHandler() ch.interaction()ftp_client.py
# coding=gbk import os, sys
PATH = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
sys.path.append(PATH) from core import main if __name__ == '__main__':
main.ArgvHandler()ftp_server.py
[DEFAULT] [monitory]
Password = 123
Quotation = 100 [root]
Password = root
Quotation = 100accounts.cfg
import os , sys
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__))) IP="127.0.0.1"
PORT = 8080 ACCOUNT_PATH = os.path.join(BASE_DIR,"conf",'accounts.cfg')settings.py
import os, sys
import optparse, socketserver
# PATH = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
# sys.path.append(PATH)
from conf import settings
from core import server class ArgvHandler():
def __init__(self):
self.op = optparse.OptionParser()
# self.op.add_option('-s','--s',dest = 'server')
# self.op.add_option('-P','--port',dest = 'port')
options, args = self.op.parse_args() # python ftp_server.py -s 127.0.0.1 -P 8080 123
# options:add_option配置过的参数，args：add_option中没有定义的参数
# print(options.server)
# print(options.port)
# print(args) self.verify_args(options, args) def verify_args(self, options, args):
if args:
cmd = args[0]
if hasattr(self, cmd):
func = getattr(self, cmd)
func()
else:
print('There is no such parameter')
else:
print('Usage [start]') def start(self):
print('server is working')
s = socketserver.ThreadingTCPServer((settings.IP,settings.PORT), server.ServerHandler)
s.serve_forever() def help(self):
passmain.py
import socketserver, configparser
import json
from conf import settings
import os, sys STATUS_CODE = {
250 : "Invalid cmd format, e.g: {'action':'get','filename':'test.py','size':344}",
251 : "Invalid cmd ",
252 : "Invalid auth data",
253 : "Wrong username or password",
254 : "Passed authentication", 800 : "the file exist,but not enough ,is continue? ",
801 : "the file exist !",
802 : " ready to receive datas", 900 : "md5 valdate success" } class ServerHandler(socketserver.BaseRequestHandler): def handle(self):
while True:
#conn = self.request data=self.request.recv(1024).strip()
if len(data)==0:break data=json.loads(data.decode("utf8"))
print("data:",data)
'''
{'action':'auth',
'username':'xxxx',
'pwd':123
}
'''
if data.get('action'):
if hasattr(self, data.get('action')):
func = getattr(self, data.get('action'))
func(**data)
else:
print('Invalid cmd')
else:
print('Invalid cmd2') def send_reponse(self, status_code):
response = {'status_code':status_code}
self.request.sendall(json.dumps(response).encode('utf8')) def auth(self, **data):
username = data['username']
password = data['password']
user = self.authenticate(username, password) if user:
self.send_reponse(254)
else:
self.send_reponse(253) def authenticate(self, user, pwd):
cfg = configparser.ConfigParser()
cfg.read(settings.ACCOUNT_PATH) if user in cfg.sections():
if cfg[user]['Password'] == pwd:
self.user=user
self.mainPath = os.path.join(settings.BASE_DIR, 'home', self.user)
print('passwd authentication')
return user def put(self, **data):
print('data')
file_name = data.get('file_name')
file_size = data.get('file_size')
target_path = data.get('target_path') abs_path = os.path.join(self.mainPath, target_path, file_name) #######################################传输
has_received = 0
if os.path.exists(abs_path):
file_has_size = os.stat(abs_path).st_size
if file_has_size < file_size:
# 断点续传
self.request.sendall(''.encode('utf8'))
choice = self.request.recv(1024).decode('utf8')
if choice == 'Y':
self.request.sendall(str(file_has_size).encode('utf8'))
has_received = file_has_size
f = open(abs_path, 'ab')
else:
f = open(abs_path, 'wb')
else:
# 文件完全存在
self.request.sendall(''.encode('utf8'))
return else:
self.request.sendall(''.encode('utf8'))
f = open(abs_path, 'wb') while has_received < file_size:
try:
data = self.request.recv(1024)
except Exception as e:
break
f.write(data)
has_received += len(data)
f.close() def ls(self,**data):
file_list = os.listdir(self.mainPath) # 加入当前目录下的文件到列表
file_str='\n'.join(file_list)
if not len(file_str):
file_str='<empty dir> '
self.request.sendall(file_str.encode('utf8')) def cd(self, **data):
dirname = data.get('dirname') if dirname == '..':
self.mainPath = os.path.dirname(self.mainPath)
self.request.sendall(self.mainPath.encode('utf8'))
elif os.path.exists(os.path.join(self.mainPath, dirname)):
self.mainPath = os.path.join(self.mainPath, dirname)
self.request.sendall(self.mainPath.encode('utf8'))
else:
self.request.sendall('Directory is not exist!'.encode('utf8')) def mkdir(self, **data):
dirname = data.get('dirname')
# 新目录名
path = os.path.join(self.mainPath, dirname)
# 判断目录名是否存在
if not os.path.exists(path):
if '/' in dirname:
os.makedirs(path)
else:
os.mkdir(path)
self.request.sendall('create success'.encode('utf8'))
else:
self.request.sendall('dirname is exist'.encode('utf8')) def rm(self, **data):
filename = data.get('file_name')
filename1 = os.path.join(self.mainPath, filename)
os.remove(filename1)
self.request.sendall('file is removed!'.encode('utf8')) def pwd(self, **data):
self.request.sendall(self.mainPath.encode('utf8'))server.py
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