Created on April 4, 2010

@author: marcink

"""

from beaker.cache import cache_region

from pylons import config, session, url, request

from pylons.controllers.util import abort, redirect

from pylons_app.lib.utils import get_repo_slug

from pylons_app.model import meta

from pylons_app.model.db import User, RepoToPerm, Repository, Permission

from sqlalchemy.exc import OperationalError

from sqlalchemy.orm.exc import NoResultFound, MultipleResultsFound

from decorator import decorator

import logging

log = logging.getLogger(__name__) 

def get_crypt_password(password):

    """Cryptographic function used for password hashing based on sha1

    @param password: password to hash

@cache_region('super_short_term', 'cached_user')

def get_user_cached(username):

    sa = meta.Session

    try:

        user = sa.query(User).filter(User.username == username).one()

    finally:

        meta.Session.remove()

    return user

def authfunc(environ, username, password):

    try:

        user = get_user_cached(username)

    except (NoResultFound, MultipleResultsFound, OperationalError) as e:

        log.error(e)

        user = None

    if user:

        if user.active:

                log.info('user %s authenticated correctly', username)

                return True

        else:

            log.error('user %s is disabled', username)

    return False

class  AuthUser(object):

    """

    A simple object that handles a mercurial username for authentication

    """

    def __init__(self):

<name> = formencode.validators.<name of validator>

<name> must equal form name

list=[1,2,3,4,5]

for SELECT use formencode.All(OneOf(list), Int())

"""

from formencode import All

from formencode.validators import UnicodeString, OneOf, Int, Number, Regex, \

    Email, Bool, StringBoolean

from pylons import session

from pylons.i18n.translation import _

from pylons_app.model import meta

from pylons_app.model.db import User, Repository

from sqlalchemy.exc import OperationalError

from sqlalchemy.orm.exc import NoResultFound, MultipleResultsFound

from webhelpers.pylonslib.secure_form import authentication_token

import datetime

import formencode

import logging

import os

import pylons_app.lib.helpers as h

log = logging.getLogger(__name__)

            'invalid_password':_('invalid password'),

            'invalid_login':_('invalid user name'),

            'disabled_account':_('Your acccount is disabled')

            }

    #error mapping

    e_dict = {'username':messages['invalid_login'],

              'password':messages['invalid_password']}

    e_dict_disable = {'username':messages['disabled_account']}

    def validate_python(self, value, state):

        sa = meta.Session

        username = value['username']

        try:

            user = sa.query(User).filter(User.username == username).one()

        except (NoResultFound, MultipleResultsFound, OperationalError) as e:

            log.error(e)

            user = None

            raise formencode.Invalid(self.message('invalid_password',

                                     state=State_obj), value, state,

                                     error_dict=self.e_dict)            

        if user:

            if user.active:

                    from pylons_app.lib.auth import AuthUser

                    auth_user = AuthUser()

                    auth_user.username = username

                    auth_user.is_authenticated = True

                    auth_user.is_admin = user.admin

                    auth_user.user_id = user.user_id

                    auth_user.name = user.name

                    auth_user.lastname = user.lastname

                    session['hg_app_user'] = auth_user

                    session.save()

                    log.info('user %s is now authenticated', username)

    author='marcin kuzminski',

    author_email='marcin@python-works.com',

    url='http://hg.python-works.com',

    install_requires=[

        "Pylons>=1.0.0",

        "SQLAlchemy>=0.6",

        "Mako>=0.3.2",

        "vcs>=0.1.4",

        "pygments>=1.3.0",

        "mercurial>=1.6",

        "pysqlite",

        "whoosh>=1.0.0b5",

    ],

    setup_requires=["PasteScript>=1.6.3"],

    packages=find_packages(exclude=['ez_setup']),

    include_package_data=True,

    test_suite='nose.collector',

    package_data={'pylons_app': ['i18n/*/LC_MESSAGES/*.mo']},

    message_extractors={'pylons_app': [

            ('**.py', 'python', None),

            ('templates/**.mako', 'mako', {'input_encoding': 'utf-8'}),

            ('public/**', 'ignore', None)]},

    zip_safe=False,

    paster_plugins=['PasteScript', 'Pylons'],