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server.py
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from PIL import ImageGrab
import socket
import threading
import time
import struct
import sys
import cv2
import json
import hashlib
import numpy as np
import win32api
import win32con
host = '0.0.0.0'
port = 8001
def socket_service():
try:
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.bind((host, port))
s.listen(10)
except socket.error as e:
print(e)
sys.exit(1)
print('Waiting connection...')
while True:
conn, addr = s.accept()
t = threading.Thread(target=deal_data, args=(conn, addr))
t.start()
def deal_data(conn, addr):
print('Accept new connection from {0}'.format(addr))
conn.send('Hi, Welcome to the server!'.encode())
while True:
try:
resize_ratio = json.loads(get_msg(conn, 1024).decode())
if resize_ratio.get('resize_ratio'):
conn.send("client info confirm".encode())
break
except Exception as e:
print(e)
param = {
'resize_ratio': resize_ratio.get('resize_ratio'),
'conn': conn,
'pos': (0, 0)
}
window_name = addr[0]
cv2.namedWindow(window_name)
cv2.setMouseCallback(window_name, OnMouseMove, param=param)
while True:
encode_header_len = get_msg(conn, 4)
if not encode_header_len:
break
msg_header_length = struct.unpack('i', encode_header_len)[0]
encode_header = get_msg(conn, msg_header_length)
if not encode_header:
break
msg_header = json.loads(encode_header.decode())
img_data = recv_msg(conn, msg_header)
if not img_data:
break
if hashlib.md5(img_data).hexdigest() != msg_header['msg_md5']:
break
msg_decode = np.frombuffer(img_data, np.uint8)
img_decode = cv2.imdecode(msg_decode, cv2.IMREAD_COLOR)
if cv2.getWindowProperty(window_name, cv2.WND_PROP_VISIBLE) <= 0:
break
cv2.imshow(window_name, img_decode)
key = cv2.waitKey(20)
print(key) if key != -1 else None
cv2.destroyAllWindows()
conn.close()
def get_msg(conn, length):
try:
return conn.recv(length)
except socket.error as e:
print(e)
def recv_msg(conn, msg_header):
recv_size = 0
img_data = b''
while recv_size < msg_header['msg_length']:
if msg_header['msg_length'] - recv_size > 10240:
recv_data = get_msg(conn, 10240)
else:
recv_data = get_msg(conn, msg_header['msg_length']-recv_size)
recv_size += len(recv_data)
img_data += recv_data
return img_data
def OnMouseMove(event, x, y, flags, param):
win32api.SetCursor(win32api.LoadCursor(0, win32con.IDC_ARROW ))
conn = param['conn']
screen_x = round(x * param['resize_ratio'][0])
screen_y = round(y * param['resize_ratio'][1])
if (screen_x, screen_y) == param['pos'] and event == 0 and flags == 0:
pass
else:
param['pos'] = (screen_x, screen_y)
msg = {'mouse_position': (screen_x, screen_y), 'event': event, 'flags': flags}
try:
conn.send(struct.pack('i', len(json.dumps(msg))))
conn.send(json.dumps(msg).encode())
# print('event: {}, x: {}, y: {} flags: {}'.format(event, x, y, flags))
except socket.error as e:
print(e)
if __name__ == '__main__':
socket_service()