Subversion Repositories SmartDukaan

from email.mime.text import MIMEText

from shop2020.clients.HelperClient import HelperClient

from shop2020.thriftpy.utils.ttypes import Mail

import sched

import time

import smtplib

import sys

class EmailSender():

    def __init__(self):

        print 'EmailSender initiated at', time.time()

        self.email_schedular = sched.scheduler(time.time, time.sleep)

        self.time_to_sleep = 2

        self.authenticate()

    def authenticate(self):

        try:

            print "Attempting authentication at", time.time()

            self.mailServer = smtplib.SMTP("smtp.sendgrid.net", 587)

            self.sender = "shop2020mail"

            self.password = "shop2020"

            self.mailServer.ehlo()

            self.mailServer.starttls()

            self.mailServer.ehlo()

            self.mailServer.login(self.sender, self.password)

            print "Authentication successful", time.time()

        except smtplib.SMTPConnectError as e:

            print 'Specified host did not respond correctly', e        

        except smtplib.SMTPHeloError as e:

            print 'The server did not reply properly to the HELO greeting.', e

        except smtplib.SMTPAuthenticationError as e:

            print 'The server did not accept the username/password combination.', e

        except smtplib.SMTPException as e:

            print e

        except Exception as e:

            print sys.exc_info()[0]

            print e

    def sendMail(self, mail):

        if mail.sender:

            mail.data = "This mail is sent by " + mail.sender + "\n" + mail.data

        msg = MIMEText(mail.data, 'html')

        msg['To'] = mail.to

        if mail.sender:

            msg['From'] = mail.sender

        else:

            msg['From'] = "help@saholic.com"

        msg['Subject'] = mail.subject

        try:

            rs = self.mailServer.sendmail(self.password, [mail.to], msg.as_string())

        except smtplib.SMTPServerDisconnected as e:

            print 'Server Disconnected at', time.time()

            self.authenticate()

            rs = self.mailServer.sendmail(self.password, [mail.to], msg.as_string())

        print msg['To']

        # Should be mailServer.quit(), but that crashes...

        return rs

    def send(self):

        print "Despatch stared at ", time.time()

        helper_client = HelperClient().get_client()

        emails_to_be_dispatched = helper_client.getEmailsToBeSent()

        print len(emails_to_be_dispatched)

        for email in emails_to_be_dispatched:

            mail = Mail(email.emailTo, email.subject, email.body, None, None, None)

            try:

                send_result = self.sendMail(mail)

                if len(send_result) == 0:

                    print "Sent at", time.time()

                    helper_client.markEmailAsSent(email.id)

                else:

                    print "Failed sending email. Id:", " Time:", time.time()

            except Exception as e:

                print sys.exc_info()[0]

                print e

                print 'Error occurred sending emails. Will retry.'

        self.email_schedular.enter(self.time_to_sleep, 1, self.send, ())

    def start(self):

        self.email_schedular.enter(self.time_to_sleep, 1, self.send, ())

        self.email_schedular.run()

EmailSender().start()