超手抜き版Webページチェッカー HTTPでアクセスして、ステータスコードが4xx以上であればメール送信

web_checker.py

#!/usr/bin/env python
# -*- coding:utf-8 -*-
"""
Author : wg_koro
Update : 2013/7/10

Web page checker

"""
import urllib
import smtplib
import traceback
from email.MIMEText import MIMEText
from email.Header import Header
from email.Utils import formatdate

"""
メール設定
"""
MAIL_FROM = 'piyo@aaa.com'  # 送信元アドレス
MAIL_TO = 'fuga@bbb.net'    # 送信先アドレス
MAIL_SUBJECT = u'タイトル'  # メールタイトル

"""
送信に使うGmailアカウント設定
"""
GMAIL_ID = 'xxx@gmail.com'      # 送信に使うGmail(OR Apps)アカウントID
GMAIL_PASS = 'passpasspass'     # 上記IDのパスワード

"""
文字エンコード
"""
ENCODE = 'ISO-2022-JP'

class ServiceChecker:
    def __init__(self):
        self.error = []
        self.check_list = {
            u'ぐーぐる'    : 'http://www.google.co.jp/hogehoge'
        }

    def check_service(self):
        for key, url in self.check_list.items():
            status = self.fetch_page(url)
            if status:
                self.error.append('%s: %s' % (key, status))

        if not self.error:
            return

        error_list = '\n'.join(self.error)
        msg = self.create_message(MAIL_FROM, MAIL_TO, MAIL_SUBJECT, error_list)
        self.send(MAIL_FROM, MAIL_TO, msg)

    def fetch_page(self, url):
        page = urllib.urlopen(url)
        status = page.getcode()
        if status >= 400:
            return status

        return None

    def create_message(self, from_addr, to_addr, subject, body):
        msg = MIMEText(body, 'plain', ENCODE)
        msg['Subject'] = Header(subject, ENCODE)
        msg['From'] = from_addr
        msg['To'] = to_addr
        msg['Date'] = formatdate()
        return msg

    def send(self, from_addr, to_addr, msg):
        st = smtplib.SMTP('smtp.gmail.com', 587)
        st.ehlo()
        st.starttls()
        st.ehlo()
        st.login(GMAIL_ID, GMAIL_PASS)
        st.sendmail(from_addr, [to_addr], msg.as_string())
        st.close()


if __name__ == '__main__':
    check = ServiceChecker()
    check.check_service()