Quick and dirty email server checker, python

mellerbeck (Michael Ellerbeck) — Tue, 15 May 2007 18:26:50 GMT

// description of your code here
This sends an email from a gmail account with a GUID for the subject to another email account, and then writes this GUID to file. On the other end, the other half of the program checks the GUID in the recieved message and matches it to the GUID in the file to verify that the message has been recieved. I schedule the sender to run every ten minutes, and the reciever/checker to run every minute. The reciever has a threshold value of 20 so if it has checked 20 times and not recieved the email it sends an IM to my gmail account. Whew is that contrived or what.



// First part, email sender, schedule to run every 10 minutes or so

// this uses GUID from http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/163604



from smtplib import SMTP

from socket import sslerror         #if desired

import Guid

import os



guidSubj = Guid.generate()

guidBod1 = Guid.generate()

guidBod2 = Guid.generate()



if not os.path.exists("sent.txt"):   #check whether the file exists, if not create it

    fileHandle = open('sent.txt','w')

    fileHandle.write (guidSubj)

    fileHandle.close()

    server = SMTP('smtp.gmail.com',587)

    server.set_debuglevel(1) # or 1 for verbosity

    server.ehlo('user@gmail.com')

    server.starttls()

    server.ehlo('user@gmail.com')  # say hello again

    server.login('user@gmail.com', 'password')

    # i have a suspicion that smptlib does not add the required newline dot newline so i do it myself

    server.sendmail('user@gmail.com', 'user@place.com', "Subject:Ping," + guidSubj + '\n\n' + guidBod1 + '\n\n' + guidBod2 + '\n.\n')

    # next line generates the ignorable socket.sslerror

    server.quit()



// Second email checker/reciever, check every minute or so

# This script is a helper to clean POP3 mailboxes

# containing malformed mails that hangs MUA's, that 

# are too large, or whatever...

#

# It iterates over the non-retrieved mails, prints

# selected elements from the headers and prompt the 

# user to delete bogus messages.

#

# Written by Xavier Defrang 

# 



# 

import getpass, poplib, re, os, fileinput, sys, xmpp



def sendIM(toAddress=None):

    

    # Google Talk constants

    FROM_GMAIL_ID = "user@gmail.com"

    GMAIL_PASS = "pass"

    GTALK_SERVER = "talk.google.com"

    TO_GMAIL_ID = "user@gmail.com"

    jid=xmpp.protocol.JID(FROM_GMAIL_ID)

    cl=xmpp.Client(jid.getDomain(),debug=[])

    if not cl.connect((GTALK_SERVER,5222)):

        raise IOError('Can not connect to server.')

    if not cl.auth(jid.getNode(),GMAIL_PASS):

        raise IOError('Can not auth with server.')



    cl.send( xmpp.Message( TO_GMAIL_ID ,"Fix your email!" ) )

    cl.disconnect()



# Change this to your needs

POPHOST = "131.0.0.1"

POPUSER = "user"

POPPASS = "pass"



# How many lines of message body to retrieve

MAXLINES = 10



# Headers we're actually interrested in

rx_headers  = re.compile(r"^(Subject)")



try:



    # Connect to the POPer and identify user

    pop = poplib.POP3(POPHOST)

    pop.user(POPUSER)



    if not POPPASS:

        # If no password was supplied, ask for it

        POPPASS = getpass.getpass("Password for %s@%s:" % (POPUSER, POPHOST))



    # Authenticate user

    pop.pass_(POPPASS)



    # Get some general informations (msg_count, box_size)

    stat = pop.stat()



    bye = 0

    count_del = 0

    

    #for n in range(stat[0]):



    msgnum = stat[0]



    # Retrieve headers

    response, lines, bytes = pop.top(msgnum, MAXLINES)



    # Print message info and headers we're interrested in

    test = "".join(filter(rx_headers.match, lines))

    num = test.split(',')

    out = num[1]

    



    #Read the sent.txt file to get the GUID

    fileHandle = open ( 'sent.txt' )

    sentGuid = fileHandle.readline()

    print sentGuid

    fileHandle.close()

    

    if out == sentGuid:

        print "They match!! yay"

        pop.dele(msgnum)

        print "Message %d marked for deletion" % msgnum

        count_del += 1

        #delete the retry.txt and sent.txt file

        os.remove("retry.txt")

        os.remove("sent.txt")

    else:



        #There are no messages yet, so we will increment the retry value

        if not os.path.exists("retry.txt"):

            fileHandle = open ( 'retry.txt','a')

            fileHandle.write('1')

            fileHandle.close()

        else:

        

        fileHandle = open("retry.txt")

        retryValue = fileHandle.readline()

        fileHandle.close()

        #delete the file then recreate with new value

        os.remove('retry.txt')



        if retryValue != '':

            retryValue = int(retryValue) + 1

            out = str(retryValue)

            fileHandle = open ( 'retry.txt','a')

            fileHandle.write(out)

            fileHandle.close()

            if retryValue > 20 and retryValue <25:

                sendIM()



   # Summary

    print "Deleting %d message(s) in mailbox %s@%s" % (count_del, POPUSER, POPHOST)



    # Commit operations and disconnect from server

    print "Closing POP3 session"

    pop.quit()



except poplib.error_proto, detail:



    # Fancy error handling

    print "POP3 Protocol Error:", detail



    #There are no messages yet, so we will increment the retry value

    if not os.path.exists("retry.txt"):

        fileHandle = open ( 'retry.txt','a')

        fileHandle.write('1')

        fileHandle.close()

    else:

        

        fileHandle = open("retry.txt")

        retryValue = fileHandle.readline()

        fileHandle.close()

        #delete the file then recreate with new value

        os.remove('retry.txt')



        if retryValue != '':

            retryValue = int(retryValue) + 1

            out = str(retryValue)

            fileHandle = open ( 'retry.txt','a')

            fileHandle.write(out)

            fileHandle.close()

            if retryValue > 20 and retryValue <25:

                sendIM()

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Quick and dirty email server checker, python