|
读取邮件向imaplib 传递一个消息ID的列表。为了提取的是邮箱的主题,将字符串(BODY[HEADER.FIELDS(SUBJECT)]) 作为参数传递给imaplib
from imaplib import IMAP4
class SubjectLister(IMAP4):
def __init__(self, server, username, password):
IMAP4.__init__(self, server)
self.login(username, password)
def summarize(self, mailbox='cxiaoln'):
numberOfMessages = int(self._result(self.select(mailbox)))
print ('%s message(s) in mailbox "%s":'%(numberOfMessages, mailbox))
subjects = self._result(self.fetch('1:%d'% numberOfMessages, '(BODY[HEADER.FIELDS (SUBJECT)])'))
for subject in subjects:
if hasattr(subject, '__iter__'):
subject = subject[1]
print('', subject[:subject.find('\n')])
def _result(self, result):
status, result = result
if status != 'OK':
raise status(result)
if len(result) == 1:
result = result[0]
return result
if __name__ == '__main__':
lister = SubjectLister('imap.163.com', 'user', 'password')
lister.summarize()
这里的第一件事就是完成服务器的链接,然后选择邮箱中的文件夹。
由于同步的问题,这里减少了风险:self.fetch('1:%d'% numberOfMessages, '(BODY[HEADER.FIELDS (SUBJECT)])')
使用唯一ID提取消息
imap = imaplib.IMAP4('imap.163.com')
imap.login('username', 'password')
imap.select('cxiaoln')[1][0] # 选择邮箱中的文件夹 并返回文件夹中有多少邮件
uids = imap.uid('SEARCH', 'ALL') # 读取cxiaoln文件夹中的所有uid
uids = uids[1][0].split(' ') #将返回的('OK', ['1331738237 1331738238 1331738239'])的第二部分将通过空格分隔出3个uid
messageText = imap.uid('FETCH', uids[0], '(RFC822)'[1][0][1]) #读取uids[0]对应的邮件
总共四个步骤:1、连接服务器 2、选择邮箱中的文件夹 3、运行SEARCH指令,读取该文件夹的ID
4、通过FETCH指令获取邮箱的实际消息
使用IMAP4_SSL替换IAMP4,端口不是23 而是995
使用简单的socket 编程
import socket
import sys
if len (sys.argv) < 3:
print ('host port')
sys.exit(1)
hostname = sys.argv[1]
port = int(sys.argv[2])
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.bind((hostname, port))
sock.listen(1)
print ('Waitiing for a request')
request, clientAddress = sock.accept()
print ('Received request from', clientAddress)
request.send("xiaoln") #bytes('-=supersimpleSocketServer 3000=-\n', 'utf-8')
request.send("exit") #bytes('Go away!\n', 'utf-8')
request.shutdown(2)
print("have handled request, stopping server.")
socket.close()
在这里只是最简单的操作,也是socket中一种最简单的操作
1、sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
2、sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) #设置sock选项
sock.bind((hostname, port)) 绑定地址和端口号
sock.listen(1) 监听一个连接
request, clientAddress = sock.accept() 阻塞等待客户端的连接
request.send("xiaoln") #bytes('-=supersimpleSocketServer 3000=-\n', 'utf-8')
request.send("exit") #bytes('Go away!\n', 'utf-8')
request.shutdown(2) #断开连接
socket.close() #关闭socket
客户端的连接可以使用:
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.connect((server, port))
sock.send(bytes(strData, 'utf-8'))
strRecvData = sock.recv(1024) // 最多一下子接受1024个字节
sock.close()
修改服务器,使用简单的socketserver
import socketserver
class RequestHandler(socketserver.StreamRequestHandler):
def handle(self):
do something
rfile.read 读数据
wfile.write 写数据
socketserver.TCPServer(('localhost', 2000), RequestHandler).serve_forever()
|
|