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micropython建立ftp（服务端）含源码
好久没出教程了，因为我秉承只上干货的原则，只发有用的干货（偶尔也夹带一些自己的碎碎念），然后就是能上代码直接粘贴出来，让大家来了就不白来，不要随便浪费别人的时间。
不废话了，这次用micropython做了一个ftp的服务端，github上面找来的，很精简，就一个py文件，需要的拿走，直接贴代码。
#vx jd3096
import socket
import network
import uos
import gc
from time import localtime
SSID='NBWIFI'
PASSWORD='xxxxxxx'
wlan=network.WLAN(network.STA_IF)
wlan.active(True)
wlan.connect(SSID,PASSWORD)
if wlan.isconnected():
print('WIFI connected already!')
else:
while not wlan.isconnected():
pass
print('WIFI connected first')
print(wlan.ifconfig()[0]) #建立WIFI连接的方法自己随便弄，这里给个参考，ftp的地址就是打印出来的，ifconfig()的第一项
month_name = ["", "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"]
def send_list_data(path, dataclient, full):
try: # whether path is a directory name
for fname in uos.listdir(path):
dataclient.sendall(make_description(path, fname, full))
except: # path may be a file name or pattern
pattern = path.split("/")[-1]
path = path[:-(len(pattern) + 1)]
if path == "": path = "/"
for fname in uos.listdir(path):
if fncmp(fname, pattern) == True:
dataclient.sendall(make_description(path, fname, full))
def make_description(path, fname, full):
if full:
stat = uos.stat(get_absolute_path(path,fname))
file_permissions = "drwxr-xr-x" if (stat[0] & 0o170000 == 0o040000) else "-rw-r--r--"
file_size = stat[6]
tm = localtime(stat[7])
if tm[0] != localtime()[0]:
description = "{} 1 owner group {:>10} {} {:2} {:>5} {}\r\n".format(
file_permissions, file_size, month_name[tm[1]], tm[2], tm[0], fname)
else:
description = "{} 1 owner group {:>10} {} {:2} {:02}:{:02} {}\r\n".format(
file_permissions, file_size, month_name[tm[1]], tm[2], tm[3], tm[4], fname)
else:
description = fname + "\r\n"
return description
def send_file_data(path, dataclient):
with open(path, "r") as file:
chunk = file.read(512)
while len(chunk) > 0:
dataclient.sendall(chunk)
chunk = file.read(512)
def save_file_data(path, dataclient, mode):
with open(path, mode) as file:
chunk = dataclient.read(512)
while len(chunk) > 0:
file.write(chunk)
chunk = dataclient.read(512)
def get_absolute_path(cwd, payload):
# Just a few special cases "..", "." and ""
# If payload start's with /, set cwd to /
# and consider the remainder a relative path
if payload.startswith('/'):
cwd = "/"
for token in payload.split("/"):
if token == '..':
if cwd != '/':
cwd = '/'.join(cwd.split('/')[:-1])
if cwd == '':
cwd = '/'
elif token != '.' and token != '':
if cwd == '/':
cwd += token
else:
cwd = cwd + '/' + token
return cwd
# compare fname against pattern. Pattern may contain
# wildcards ? and *.
def fncmp(fname, pattern):
pi = 0
si = 0
while pi < len(pattern) and si < len(fname):
if (fname[si] == pattern[pi]) or (pattern[pi] == '?'):
si += 1
pi += 1
else:
if pattern[pi] == '*': # recurse
if (pi + 1) == len(pattern):
return True
while si < len(fname):
if fncmp(fname[si:], pattern[pi+1:]) == True:
return True
else:
si += 1
return False
else:
return False
if pi == len(pattern.rstrip("*")) and si == len(fname):
return True
else:
return False
def ftpserver():
DATA_PORT = 13333
ftpsocket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
datasocket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
ftpsocket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
datasocket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
ftpsocket.bind(socket.getaddrinfo("0.0.0.0", 21)[0][4])
datasocket.bind(socket.getaddrinfo("0.0.0.0", DATA_PORT)[0][4])
ftpsocket.listen(1)
datasocket.listen(1)
datasocket.settimeout(10)
msg_250_OK = '250 OK\r\n'
msg_550_fail = '550 Failed\r\n'
try:
dataclient = None
fromname = None
while True:
cl, remote_addr = ftpsocket.accept()
cl.settimeout(300)
cwd = '/'
try:
# print("FTP connection from:", remote_addr)
cl.sendall("220 Hello, this is the ESP8266.\r\n")
while True:
gc.collect()
data = cl.readline().decode("utf-8").rstrip("\r\n")
if len(data) <= 0:
print("Client disappeared")
break
command = data.split(" ")[0].upper()
payload = data[len(command):].lstrip()
path = get_absolute_path(cwd, payload)
print("Command={}, Payload={}, Path={}".format(command, payload, path))
if command == "USER":
cl.sendall("230 Logged in.\r\n")
elif command == "SYST":
cl.sendall("215 UNIX Type: L8\r\n")
elif command == "NOOP":
cl.sendall("200 OK\r\n")
elif command == "FEAT":
cl.sendall("211 no-features\r\n")
elif command == "PWD":
cl.sendall('257 "{}"\r\n'.format(cwd))
elif command == "CWD":
try:
files = uos.listdir(path)
cwd = path
cl.sendall(msg_250_OK)
except:
cl.sendall(msg_550_fail)
elif command == "CDUP":
cwd = get_absolute_path(cwd, "..")
cl.sendall(msg_250_OK)
elif command == "TYPE":
# probably should switch between binary and not
cl.sendall('200 Transfer mode set\r\n')
elif command == "SIZE":
try:
size = uos.stat(path)[6]
cl.sendall('213 {}\r\n'.format(size))
except:
cl.sendall(msg_550_fail)
elif command == "QUIT":
cl.sendall('221 Bye.\r\n')
break
elif command == "PASV":
addr = network.WLAN().ifconfig()[0]
cl.sendall('227 Entering Passive Mode ({},{},{}).\r\n'.format(
addr.replace('.',','), DATA_PORT>>8, DATA_PORT%256))
dataclient, data_addr = datasocket.accept()
# print("FTP Data connection from:", data_addr)
elif command == "LIST" or command == "NLST":
if not payload.startswith("-"):
place = path
else:
place = cwd
try:
send_list_data(place, dataclient, command == "LIST" or payload == "-l")
cl.sendall("150 Here comes the directory listing.\r\n")
cl.sendall("226 Listed.\r\n")
except:
cl.sendall(msg_550_fail)
if dataclient is not None:
dataclient.close()
dataclient = None
elif command == "RETR":
try:
send_file_data(path, dataclient)
cl.sendall("150 Opening data connection.\r\n")
cl.sendall("226 Transfer complete.\r\n")
except:
cl.sendall(msg_550_fail)
if dataclient is not None:
dataclient.close()
dataclient = None
elif command == "STOR":
try:
cl.sendall("150 Ok to send data.\r\n")
save_file_data(path, dataclient, "w")
cl.sendall("226 Transfer complete.\r\n")
except:
cl.sendall(msg_550_fail)
if dataclient is not None:
dataclient.close()
dataclient = None
elif command == "APPE":
try:
cl.sendall("150 Ok to send data.\r\n")
save_file_data(path, dataclient, "a")
cl.sendall("226 Transfer complete.\r\n")
except:
cl.sendall(msg_550_fail)
if dataclient is not None:
dataclient.close()
dataclient = None
elif command == "DELE":
try:
uos.remove(path)
cl.sendall(msg_250_OK)
except:
cl.sendall(msg_550_fail)
elif command == "RMD":
try:
uos.rmdir(path)
cl.sendall(msg_250_OK)
except:
cl.sendall(msg_550_fail)
elif command == "MKD":
try:
uos.mkdir(path)
cl.sendall(msg_250_OK)
except:
cl.sendall(msg_550_fail)
elif command == "RNFR":
fromname = path
cl.sendall("350 Rename from\r\n")
elif command == "RNTO":
if fromname is not None:
try:
uos.rename(fromname, path)
cl.sendall(msg_250_OK)
except:
cl.sendall(msg_550_fail)
else:
cl.sendall(msg_550_fail)
fromname = None
else:
cl.sendall("502 Unsupported command.\r\n")
# print("Unsupported command {} with payload {}".format(command, payload))
except Exception as err:
print(err)
finally:
cl.close()
cl = None
finally:
datasocket.close()
ftpsocket.close()
if dataclient is not None:
dataclient.close()
ftpserver() #直接跑这个就成功建立服务器了拷贝到根目录之后，直接登录测试即可。
这里有个坑，最新版本的EDGE和谷歌浏览器已经不支持FTP了，别像我一样折腾半天了，直接打开任意文件夹，输入ftp地址即可，ftp://xxx.xxx.xxx.xxx然后就出来了，看下面两个图：
来源：https://blog.csdn.net/jd3096/article/details/123722188
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