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#! /usr/bin/env python
#############################################################
# #
# Author: Bertrand Neron #
# Organization:'Biological Software and Databases' Group, #
# Institut Pasteur, Paris. #
# Distributed under GPLv2 Licence. Please refer to the #
# COPYING.LIB document. #
# #
#############################################################
import sys
from hashlib import md5
import os.path
MOBYLEHOME = None
if os.environ.has_key('MOBYLEHOME'):
MOBYLEHOME = os.environ['MOBYLEHOME']
if not MOBYLEHOME:
sys.exit('MOBYLEHOME must be defined in your environment')
if ( os.path.join( MOBYLEHOME , 'Src' ) ) not in sys.path:
sys.path.append( os.path.join( MOBYLEHOME , 'Src' ) )
from Mobyle.ConfigManager import Config
from Mobyle.Session import Session , Transaction
from Mobyle.AuthenticatedSession import AuthenticatedSession
from Mobyle.MobyleError import MobyleError , SessionError
from Mobyle.Net import EmailAddress , Email
class SessionPasswd( Session ):
PASS_MIN_LEN = 6
PASS_MAX_LEN = 12
STRENGTH = [ 'blank', 'Very Weak', 'Weak', 'Medium', 'Strong', 'Very Strong']
def __init__( self , user_email , cfg ):
self.newPasswd = None
self.cfg = cfg
self.user_email = user_email
sessionDir , key = self._findSession()
Session.__init__( self, sessionDir , key , self.cfg )
if str(self.user_email) != self.getEmail():
raise MobyleError , "the email %s in xml does not match the session Key %s" % ( self.getEmail() , key )
def crypt(self , clearpasswd):
newMd5 = md5()
newMd5.update( clearpasswd )
newCryptPasswd = newMd5.hexdigest()
return newCryptPasswd
def setPasswd( self, clearPasswd ):
newCryptPasswd = self.crypt( clearPasswd )
transaction = self._getTransaction( Transaction.WRITE )
try:
transaction.setPasswd( newCryptPasswd )
self.newPasswd = ( clearPasswd , newCryptPasswd )
transaction.commit()
except Exception , err:
transaction.rollback()
raise err
def sendNewPasswd(self):
if not self.newPasswd:
raise MobyleError , "password has not been set"
mail = Email( self.user_email )
mail.send( 'NEW_PASSWD' , {'SENDER' : cfg.sender() ,
'HELP' : cfg.mailHelp() ,
'SERVER_NAME': cfg.portal_url() ,
'PASSWD' : self.newPasswd[0],
} )
def status(self):
"""
"""
email , authenticated , activated = self.getBaseInfo()
return """
email %s
session %s
authenticated %s
activated %s
""" %( email , self.key , authenticated , activated )
def inactivate(self):
transaction = self._getTransaction( Transaction.WRITE)
try:
transaction.inactivate()
transaction.commit()
except Exception , err :
transaction.rollback()
raise err
def activate(self):
transaction = self._getTransaction( Transaction.WRITE)
try:
transaction.activate()
transaction.commit()
except Exception , err :
transaction.rollback()
raise err
def strenght_meter(self , passwd ):
score = 1
if not passwd:
# the password is empty
return 0
if len( passwd ) < self.PASS_MIN_LEN :
# a short password canot be stronger than 1
return 1
if len( passwd ) >= self.PASS_MIN_LEN :
score += 1
if passwd.lower() != passwd and passwd.upper() != passwd:
#the password mix upper and lower case
score += 1
for x in passwd:
#the password contains at least one digits
if x.isdigit():
score += 1
break
for x in passwd:
#the password contains at least one symbols (not digits not letters)
if not x.isalnum() :
score += 1
break
return score
def _findSession( self ):
newMd5 = md5()
newMd5.update( str( self.user_email ) )
key = newMd5.hexdigest()
sessionDir = os.path.join( cfg.user_sessions_path() , AuthenticatedSession.DIRNAME , key )
if os.path.exists( sessionDir ):
return sessionDir , key
else:
raise SessionError , "there no session corresonding to %s" % self.user_email
if __name__ == '__main__':
from getpass import getpass
from optparse import OptionParser
usage = """usage: %prog [options] email
change session password for email
"""
parser = OptionParser( usage= usage )
parser.add_option( "-s" , "--status",
action = "store_true",
dest = "status",
default = False ,
help = "display session status.")
parser.add_option( "-f" , "--force",
action = "store_true",
dest = "force",
default = False ,
help = "force new password even if strenght is weak.")
parser.add_option( "-m" , "--mail",
action = "store_true",
dest = "mail",
default = False ,
help = "send new password by email.")
parser.add_option( "-a" , "--activate",
action = "store_true",
dest = "activate",
default = False ,
help = "activate session.")
parser.add_option( "-i" , "--inactivate",
action = "store_true",
dest = "inactivate",
default = False ,
help = "inactivate session.")
options, args = parser.parse_args()
if options.activate and options.inactivate:
print >> sys.stderr , "options -i and -a are not compatble"
parser.print_help( sys.stderr )
sys.exit(1)
try:
email = args[0]
except IndexError:
print >> sys.stderr , "You must provide an email."
parser.print_help( sys.stderr )
sys.exit(1)
cfg = Config()
email = EmailAddress( email )
email_checked = email.check()
if not email_checked:
msg = email.getMessage()
print >> sys.stderr , msg
sys.exit(2)
if options.status:
try:
sPasswd = SessionPasswd( email , cfg )
except SessionError , err :
print >> sys.stderr , err
sys.exit(1)
email , isAuthenticated , isActivated = sPasswd.getBaseInfo()
print >> sys.stdout , """
email %s
session %s
authenticated %s
activated %s
""" % ( email , sPasswd.key , isAuthenticated , isActivated )
sys.exit(0)
if options.activate:
sPasswd = SessionPasswd( email , cfg )
sPasswd.activate()
elif options.inactivate:
sPasswd = SessionPasswd( email , cfg )
sPasswd.inactivate()
else:
print >> sys.stdout ,"Changing passowrd for %s" % email
sPasswd = SessionPasswd( email , cfg )
passwd = getpass( "New password : " )
confirm = getpass( "Retype new password : " )
if passwd != confirm:
print >> sys.stderr , "Sorry, passwords do not match."
sys.exit(3)
strenght = sPasswd.strenght_meter( passwd )
if strenght < 4 and not options.force:
print >> sys.stderr , """BAD PASSWORD: password strenght is %s
Choose a password
- with %d min lenght
- mix upper and lower case
- use digits and symbols """ % ( sPasswd.STRENGTH[ strenght ] , sPasswd.PASS_MIN_LEN )
else:
try:
sPasswd.setPasswd( passwd )
print >> sys.stderr , "the password for user %s has been updated successfully" % email
except Exception ,err:
print >> sys.stderr , "changing password for user %s aborted :\n %s" %( email , err )
sys.exit(4)
if options.mail:
try:
sPasswd.sendNewPasswd()
print >> sys.stderr , "the new password for user %s has been send successfully" % email
except Exception , err :
print >> sys.stderr , "the new password cannot be send to %s :\n %s" %( email , err )
sys.exit(5)
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