rewrite plguins/net.py

This commit is contained in:
2020-03-27 17:11:44 +08:00
parent a35524eb0c
commit 5d9f89d402
5 changed files with 162 additions and 270 deletions

View File

@@ -1,7 +1,7 @@
{
"id": "miku",
"listen_port": 3900,
"listen_addr": "127.0.0.1",
"listen_ip": "127.0.0.1",
"listen_num": 39,
"recv_buff": 4096
"buffsize": 4096
}

30
mswp.py
View File

@@ -1,15 +1,34 @@
import os
from config import jsondata
'''
A datapack must like:
---------------------
post log msw/1.0
id: miku
flag: 1a2b3c4d
length: 0
from: hatsune
to: [if has]
filename: [if has]
[data content here
if has
support many lines...]
---------------------
'''
class Datapack:
def __init__(self, method='post', app='all', version='msw/1.0', head=None, body=b'', check_head=True, file=None):
self.id = jsondata.try_to_read_jsondata('id', 'Unknown_id')
def __init__(self, method='post', app='all', version='msw/0.1', head=None, body=b'',
check_head=True, file=None):
self.id = jsondata.try_to_read_jsondata('id', 'unknown_id')
if head is None:
head = {}
self.head = head
else:
self.head = head
self.head['id'] = self.id
if self.id == 'unknown_id':
self.head['id'] = self.id
self.method = method
self.file = file
self.app = app
@@ -49,6 +68,5 @@ class Datapack:
self.head[i] = ii
if only_head:
return self.encode_data[index+2:]
dp = Datapack()
else:
return None

View File

@@ -12,7 +12,7 @@ def main():
file_flag = False
raw_data = input()
if raw_data[:6] == '(file)':
if raw_data[:6] == '(file)': # like "(file)log: filename.exe"
raw_data = raw_data[6:]
file_flag = True
@@ -40,7 +40,7 @@ def find_the_last(indata): # find the last ":" index
try:
next_index = indata[first_index+1:].index(':')
first_index += next_index + 1
except Exception as e:
except:
break
last_index = copy.copy(first_index)
last_index += 1

View File

@@ -1,5 +1,6 @@
import threading
import socket
import copy
import queue
import os
from mswp import Datapack
@@ -7,293 +8,157 @@ from forwarder import receive_queues, send_queue
from config import jsondata
receive_queue = receive_queues[__name__]
RECV_BUFF = jsondata.try_to_read_jsondata('recv_buff', 4096)
BUFFSIZE = jsondata.try_to_read_jsondata('buffsize', 4096)
ID = jsondata.try_to_read_jsondata('id', 'Unknown_ID')
def main():
netrecv = Netrecv()
while True:
dp = receive_queue.get()
dp.encode()
netrecv.send_queue.put(dp)
network_controller = Network_controller()
network_controller.start_accpet_connection()
def connect(addr):
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(addr)
return s
def process_hostname(hostname):
ip = socket.gethostbyname(hostname)
return ip
def read_netlisttxt_file():
try:
with open('netlist.txt', 'r') as f:
raw_data = f.read()
return raw_data
except Exception as e:
print('Error: %s, %s\n'
'If you are the first time to run this program, \n'
'Please use "netlist_sample.txt" to create "netlist.txt", \n'
'Program will continue...' % (type(e), str(e)))
return ''
class Netrecv:
class Network_controller: # manage id and connection
def __init__(self):
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) # initial socket, bind and listen, start to accept
addr = jsondata.try_to_read_jsondata('listen_addr', '127.0.0.1')
port = jsondata.try_to_read_jsondata('listen_port', 3900)
print('MSW now trying to bind the network %s, please allow it' % str((addr, port)))
s.bind((addr, port))
self.send_queue = queue.Queue()
self.id_dict = {}
self.lock = threading.Lock()
self.all_connection_list = []
#self.start_accpet_connection_thread = threading.Thread(target=self.start_accpet_connection, args=())
#self.start_accpet_connection_thread.start()
def start_accpet_connection(self):
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
listen_ip = jsondata.try_to_read_jsondata('listen_ip', '127.0.0.1')
listen_port = jsondata.try_to_read_jsondata('listen_port', 3900)
s.bind((listen_ip, listen_port))
listen_num = jsondata.try_to_read_jsondata('listen_num', 39)
s.listen(listen_num)
self.s = s
self.stat = {} # # # # #
self.connection_list = [] # [(conn, addr), (conn, addr)...] Very important
self.connection_process_thread_list =[]
self.un_enougth_list = []
self.send_queue = queue.Queue()
self.thread_check_accept_connection = threading.Thread(target=self.check_accept_connection, args=())
self.thread_check_send_queue = threading.Thread(target=self.check_send_queue, args=())
print('Sucessfully listen at %s:%s, max connection:%s' % (listen_ip, listen_port, listen_num))
########################################
raw_data = read_netlisttxt_file() # read file
lines = raw_data.split('\n')
self.file_addr_list = []
for line in lines:
ip_port = line.split(':')
if len(ip_port) == 1:
ip = ip_port[0]
if not ip: # Check whether ip is null
continue
port = jsondata.get('listen_port')
if not port:
port = 3900
ip = process_hostname(ip_port[0])
port = int(ip_port[1])
self.file_addr_list.append((ip, port))
for addr in self.file_addr_list: # Create connection
conn = connect(addr)
self.connection_list.append((conn, addr))
# Create receive thread and start
connection_thread = threading.Thread(target=self.process_connection, args=(conn, addr))
self.connection_process_thread_list.append(connection_thread)
connection_thread.start()
self.thread_check_accept_connection.start()
self.thread_check_send_queue.start()
def check_send_queue(self):
while True:
dp = receive_queue.get()
conn, addr = s.accept()
connection = Connection(conn, addr, self)
# debug code
if dp.body == b'stat':
print(self.stat)
continue
self.all_connection_list.append(connection)
if dp.method == 'file':
print('right')
print(dp.head)
dp.encode()
for id in self.stat:
for conn, addr in self.stat[id]:
conn.sendall(dp.encode_data)
file = open(dp.head['filename'], 'rb')
for data in file:
conn.send(data)
print('sended')
else:
print('wrong')
dp.encode()
for id in self.stat:
for conn, addr in self.stat[id]:
conn.sendall(dp.encode_data)
def set_connection(self, id, conn):
with self.lock:
if not self.id_dict.get(id):
self.id_dict[id] = []
self.id_dict[id].append(conn)
def del_connection(self, id, conn):
with self.lock:
if id in self.id_dict:
if not self.id_dict.get(id): # if id has no connection
del(self.id_dict[id])
else:
self.id_dict[id].remove(conn)
self.all_connection_list.remove(conn)
class Connection:
def __init__(self, conn, addr, netowrk_controller):
self.conn = conn
self.addr = addr
self.netowrk_controller = netowrk_controller
self.id = None
self.buff = b''
self.thread = threading.Thread(target=self._init, args=())
self.thread.start()
def _init(self): # init to check connection id, threading
err_code = self.check_id()
if err_code:
print('Init connection failed, connection closed')
self.conn.close()
self.netowrk_controller.set_connection(self.id, self.conn)
self.receive()
def receive(self):
still_need = 0
def check_accept_connection(self):
while True:
conn, addr = self.s.accept()
self.connection_list.append((conn, addr)) # # # # #
connection_thread = threading.Thread(target=self.process_connection, args=(conn, addr))
self.connection_process_thread_list.append(connection_thread)
connection_thread.start()
def remove_connection(self, conn, addr):
conn.close()
for id in self.stat:
if (conn, addr) in self.stat[id]:
self.stat[id].remove((conn, addr))
self.connection_list.remove((conn, addr))
print('Removed connection', str(addr))
def say_hello(self, conn, addr):
dp = Datapack(head={'from': __name__})
dp.app = 'net'
dp.encode()
conn.sendall(dp.encode_data)
print('hello package has been sent')
def process_connection(self, conn, addr):
self.say_hello(conn, addr)
print('Connection accept %s' % str(addr))
data = b''
while True:
try:
new_data = conn.recv(RECV_BUFF)
except ConnectionResetError:
print('Connection Reset Error')
self.remove_connection(conn, addr)
return
if not new_data and not data:
self.remove_connection(conn, addr)
print('return 1')
return
data += new_data
while True:
# try unpack #
dp = Datapack(check_head=False)
dp.encode_data = data
print('data', data)
print(still_need)
data = self.conn.recv(BUFFSIZE)
if not data:
break
self.buff += data
if not still_need:
dp = Datapack()
dp.encode_data = self.buff
try:
if data:
data = dp.decode(only_head=True)
print('decode success')
else:
print('Null data')
break
self.buff = dp.decode(only_head=True)
if dp.method == 'file' and os.path.exists(dp.head['filename']):
os.remove(dp.head['filename'])
except Exception as e:
print('Decode error %s: %s' % (type(e), str(e)))
break
# try unpack #
# net config data package
if dp.app == 'net':
dp_id = dp.head['id']
local_id = self.stat.get(dp_id)
if not local_id: # create if not exits
self.stat[dp_id] = []
if not (conn, addr) in self.stat[dp_id]:
self.stat[dp_id].append((conn, addr))
print('Decode head failed %s: %s' % (type(e), str(e)))
continue
length = int(dp.head.get('length'))
still_need = length
if still_need <= len(self.buff): # first download complete setuation
if dp.method == 'file':
length = int(dp.head['length'])
data_length = len(data)
with open(dp.head['filename'], 'ab') as f:
f.write(self.buff[:still_need])
else:
dp.body = self.buff[:still_need]
self.buff = self.buff[still_need:]
still_need = 0
else: # writing tmp data
if dp.method == 'file':
with open(dp.head['filename'], 'ab') as f:
still_need -= f.write(self.buff)
else:
dp.body += self.buff
still_need -= len(self.buff)
self.buff = b'' # empty buff because all tmp data has been write
# 3 condition
if length == data_length:
file = open(dp.head['filename'], 'wb')
file.write(data)
data = b''
# return package needed
elif length > data_length:
file = open(dp.head['filename'], 'wb')
aleady_write_down = 0
file.write(data)
aleady_write_down += len(data)
data = b''
# below code are using to closed connection
self.conn.close()
while aleady_write_down < length:
new_data = conn.recv(RECV_BUFF)
if not new_data:
print('return 22')
return
def check_id(self):
'''
return code
0 ok
1 unknown id
2 connection closed
'''
new_data_size = len(new_data)
still_need = length - aleady_write_down
print(still_need)
data = self.conn.recv(BUFFSIZE)
if not data:
return 2
if new_data_size == still_need: # 3 condition of new_data
print('right')
file.write(new_data)
aleady_write_down += new_data_size
self.buff += data
dp = Datapack()
dp.encode_data = self.buff # maybe here needs to use copy.copy(self.buff)
self.buff = dp.decode(only_head=True)
if not dp.head.get('id'):
return 1
self.id = dp.head['id']
elif new_data_size < still_need:
file.write(new_data)
aleady_write_down += new_data_size
elif new_data_size > still_need:
file.write(new_data[:still_need])
aleady_write_down += still_need
data = new_data[still_need:]
else:
file = open(dp.head['filename'], 'wb')
file.write(data[:length])
data = data[length:]
file.close()
dp.encode_data = b''
send_queue.put(dp)
else: # normal data pack
length = int(dp.head['length'])
data_length = len(data)
# 3 condition
if length == data_length:
print('=')
dp.body = data
data = b''
elif length > data_length:
while data_length < length:
new_data = conn.recv(RECV_BUFF)
if not new_data:
print('return 2')
return
new_data_size = len(new_data)
still_need = length - data_length
print(still_need)
if new_data_size == still_need:
print('data', data)
print('net_data', new_data)
data += new_data
data_length = len(data)
dp.body = data
data = b''
elif new_data_size < still_need:
print('data', data)
print('net_data', new_data)
data += new_data
data_length = len(data)
else:
print('else')
data += new_data[:still_need]
new_data = new_data[still_need:]
data_length = len(data)
dp.body = data
data = new_data
else:
dp.body = data[:length]
data = data[length:]
dp.encode()
send_queue.put(dp)
print('###############\n' + dp.encode_data.decode() + '\n###############')
def sendall(self, data):
self.conn.sendall(data)
thread = threading.Thread(target=main, args=())

View File

@@ -1,7 +1,13 @@
import socket
import time
data = '''file log msw/1.0
data = '''post id msw/0.1
id: miku
length: 0
from: test_software
flag: 1a2b3c4d
file log msw/1.0
from: network
flag: abcdefgh
filename: download.txt
@@ -30,6 +36,9 @@ for i in data_list:
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(('127.0.0.1', 3900))
n=0
for i in code_list:
n+=1
s.sendall(i)
print('发送%s' % n)
time.sleep(1)