# popauth.py Authenticate user through POP server.
# Copyright (c) 2002, Thinkware AB, SWEDEN
# 2002-02-27 magnus@thinkware.se
def popauth(popHost, user, passwd):
"""
Log in and log out, only to verify user identity.
Raise exception in case of failure.
"""
import poplib
try:
pop = poplib.POP3(popHost)
except:
raise StandardError, "Could not establish connection "+\
"to %s for password check" % popHost
try:
# Log in and perform a small sanity check
pop.user(user)
pop.pass_(passwd)
length, size = pop.stat()
assert type(length) == type(size) == type(0)
pop.quit()
except:
raise StandardError, "Could not verify identity. \n"+\
"User name %s or password incorrect." % user
pop.quit()
del pop
users = {
'Winston C': ('winstonc', 'pop.somedomain.xx'),
'Benny G': ('bgoodman', 'mail.anotherdomain.yy'),
'John L': ('lennon', 'pop.music-co.uk'),
}
# The main routine is for testing purposes.
def main():
usernames = users.keys()
usernames.sort()
reply = ""
while reply == "" or reply[0] not in 'Qq':
print
for i, name in zip(range(len(usernames)), usernames):
print i, name
print
print 'Select the number before your name followed by [ENTER], '
reply = raw_input("or type Q[ENTER] to quit: ")
username = ''
try:
i = int(reply)
username = usernames[i]
except:
# Continue in the loop
pass
if username:
# User successfully selected identity.
popAccount, popServer = users[username]
print
print "Hello %s. Let's see if you know the password for the " % \
username
print "email-account '%s' at the server '%s'." % \
(popAccount, popServer)
print
import getpass
passwd = getpass.getpass(
'Enter e-mail password, followed by [ENTER]: ')
print
try:
popauth(popServer, popAccount, passwd)
print "Congratulations! You have been authenticated!"
except StandardError, msg:
print msg
if __name__ == '__main__':
main()
