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利用python实现简单的邮件发送客户端示例
时间:2018-01-04 编辑:猪哥 来源:一聚教程网
脚本过于简单,供学习和参考。主要了解一下smtplib库的使用和超时机制的实现。使用signal.alarm实现超时机制。
#!/usr/bin/env python # -*- coding: utf-8 -*- import time import sys import logging import smtplib import socket import signal import ConfigParser from datetime import datetime from email import encoders from email.header import Header from email.mime.text import MIMEText from email.utils import parseaddr, formataddr CONF_PATH = "/etc/zabbix/alarm_email.conf" logging.basicConfig(level=logging.INFO, format='%(asctime)s [%(levelname)s]: %(message)s', filename='/var/log/zabbix/send_alarm_email.log') class EmailObject: def __init__(self,to_addr,content): self.timeout = 10 self.retry = 3 self.cp = self._parse_config() self.cpl = self._parse_config().sections() self.conf = dict(self.cp.items(self.cpl[0])) # common how to use one self.to_addr = to_addr self.content = content # get ConfigParser,for section selection def _parse_config(self): cp = ConfigParser.ConfigParser() cp.read(CONF_PATH) return cp # set base config def _conf_parse(self): self.subject = "zabbix告警" self.from_addr = self.conf["from_addr"] self.password = self.conf["password"] self.smtp_server = self.conf["smtp_server"] def _msg_parse(self): #msg = self.content.split("*") #state = "alarm" if msg[0] == "PROBLEM" else "ok" #severity = msg[1] #head_time = map(int,msg[2].split(".")) #tail_time = map(int,msg[3].split(":")) ## if not host? #event_type = "host." + msg[4] #reason = msg[5].replace("_"," ") #alarm_id = int(msg[6]) #message = msg return self.content def _change_server(self): # if len = 1 and this fun is called,means that all servers hava been tried if(len(self.cpl) > 1): self.cpl.pop(0) self.retry = 3 self.conf = dict(self.cp.items(self.cpl[0])) logging.info("Change server to {}".format(self.cpl[0])) self.send_email() else: logging.warning("No server could be used,try to config more server(now is {}) or increase the timeout [{}]!".format(self.cp.sections(),self.timeout)) exit() def send_email(self): # signal handle def handler(signum,frame): if self.retry > 0: raise AssertionError else: self._change_server() self._conf_parse() from_addr = self.from_addr password = self.password smtp_server = self.smtp_server timeout = self.timeout to_addr = self.to_addr msg = MIMEText(self.content,'plain','utf-8') msg['Subject'] = Header(self.subject, 'utf-8') msg['From'] = 'AlarmEmail'+'<'+from_addr+'>' msg['To'] = "******@******.com" try: signal.signal(signal.SIGALRM,handler) signal.alarm(timeout) server = smtplib.SMTP_SSL(smtp_server,465) server.login(from_addr, password) server.sendmail(from_addr,to_addr, msg.as_string()) logging.info("Send email successfully!From:[{}],To:[{}],Content:[{}]".format(from_addr,to_addr,self.content)) server.quit() exit() except AssertionError: self.retry -= 1 logging.info("Begin to resend email for the {}th times".format(3-self.retry)) self.send_email() except smtplib.SMTPAuthenticationError,e: logging.error("Server [{}] authentication failed".format(smtp_server)) self._change_server() ''' example: from emailtest import emailtest eb = emailtest.EmailObject("******@******.com","test content") eb.send_email() tips: increase timeout: eb.timeout = 10 increase retry times: eb.retry = 5 '''
配置文件参考如下:
[default]
from_addr = ******@******.com
password = ******
smtp_server = smtp.******.com
[163]
from_addr = ******@163.com
password = ******
smtp_server = smtp.163.com
[qq]
from_addr = ******@qq.com
password = ******
smtp_server = smtp.qq.com
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