為python設置socket代理
首先,你得下載SocksiPy這個.解壓出來之后里面會有一個socks.py文件.然后你可以把這個文件復制到python安裝目錄里面的Lib/site-packages中.或者把這個文件復制到程序所在的目錄中.
然后就可以再程序中使用socket代理來編寫程序了.
下面是示例代碼
import socksimport socketsocks.setdefaultproxy(socks.PROXY_TYPE_SOCKS5,"127.0.0.1",8088)socket.socket =socks.socksocketimport urllib2urllib2.urlopen('http://www.baidu.com').read()
通過socket通信實現遠程攝像頭監控
通過python來實現攝像頭監控,然后通過socket通信來將數據發送到遠程服務器,這樣就可以實現遠程監控了.大概找了下資料,果然可以,下面貼出實現過程.
這個程序包括一個服務器和一個客戶端。需要的庫有 VideoCapture 和 pygame，一個用來得到攝像頭的視頻，一個用來顯示.
服務器端,主要實現監聽客戶端所發送到指令,如果指令是startCam,則打開攝像頭,并向客戶端發送數據.
from VideoCapture import Deviceimport ImageDraw, sys, pygame, timefrom pygame.locals import *import socketimport timefrom PIL import ImageEnhancefrom threading import Threadimport tracebackimport threading # 全局變量is_sending = Falsecli_address = ('', 0)# 主機地址和端口host = 'localhost'port = 10218# 初始化UDP socketser_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)ser_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)ser_socket.bind((host, port))# 接收線程類，用于接收客戶端發送的消息class UdpReceiver(threading.Thread): def __init__(self): threading.Thread.__init__(self) self.thread_stop = False def run(self): while not self.thread_stop: # 聲明全局變量，接收消息后更改 global cli_address global is_sending try: message, address = ser_socket.recvfrom(2048) except: traceback.print_exc() continue print message,cli_address cli_address = address if message == 'startCam': print 'start camera', is_sending = True ser_socket.sendto('startRcv', cli_address) if message == 'quitCam': is_sending = False print 'quit camera', def stop(self): self.thread_stop = Trueif __name__=='__main__': res = (640,480) cam = Device() cam.setResolution(res[0],res[1]) brightness = 1.0 contrast = 1.0 shots = 0 receiveThread = UdpReceiver() receiveThread.setDaemon(True) # 該選項設置后使得主線程退出后子線程同時退出 receiveThread.start() while 1: if is_sending: camshot = ImageEnhance.Brightness(cam.getImage()).enhance(brightness) camshot = ImageEnhance.Contrast(camshot).enhance(contrast) clock = pygame.time.Clock() img = cam.getImage().resize((160,120)) data = img.tostring() ser_socket.sendto(data, cli_address) time.sleep(0.05) else: time.sleep(1) receiveThread.stop() ser_socket.close() 客戶端:
主要功能是像服務器端發送指令,然后接受服務器所發送過來的數據并通過pygame模塊來顯示出來.
# -*- coding: UTF-8 -*-import socket, timeimport pygamefrom pygame.locals import *from sys import exit# 服務器地址，初始化socketser_address = ('localhost', 10218)cli_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)# 設置超時cli_socket.settimeout(5)# 向服務器發送消息，并判斷接收時是否超時，若超時則重發while 1: cli_socket.sendto('startCam', ser_address) try: message, address = cli_socket.recvfrom(2048) if message == 'startRcv': print message break except socket.timeout: continuecli_socket.recvfrom(65536)# 初始化視頻窗口pygame.init()screen = pygame.display.set_mode((640,480))pygame.display.set_caption('Web Camera')pygame.display.flip()# 設置時間，可以用來控制幀率clock = pygame.time.Clock()# 主循環，顯示視頻信息while 1: try: data, address = cli_socket.recvfrom(65536) except socket.timeout: continue camshot = pygame.image.frombuffer(data, (160,120), 'RGB') camshot = pygame.transform.scale(camshot, (640, 480)) for event in pygame.event.get(): if event.type == pygame.QUIT: cli_socket.sendto('quitCam', ser_address) cli_socket.close() pygame.quit() exit() screen.blit(camshot, (0,0)) pygame.display.update() clock.tick(20)客戶端就是簡單地向服務器發送啟動消息，接收到回復后開始進入主循環開始接收視頻數據并顯示。
由于UDP協議不保證信息是否成功到達，因此前面設置了個重發機制，只有當客戶端收到服務器的回復后，才停止發送開啟消息并進入主循環.具體見注釋.
使用時將localhost改成服務器IP即可.
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