filter_extra_fields     False     If True, then keys that aren't associated with a validator are removed

if_key_missing          NoDefault If this is given, then any keys that aren't available but are expected will be replaced with this value (and then validated). This does not override a present .if_missing attribute on validators. NoDefault is a special FormEncode class to mean that no default values has been specified and therefore missing keys shouldn't take a default value.

ignore_key_missing      False     If True, then missing keys will be missing in the result, if the validator doesn't have .if_missing on it already

<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())

"""

import os

import re

import logging

import traceback

import formencode

from formencode import All

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

    Email, Bool, StringBoolean, Set

from pylons.i18n.translation import _

from webhelpers.pylonslib.secure_form import authentication_token

from rhodecode.lib.utils import repo_name_slug

from rhodecode.lib.auth import authenticate, get_crypt_password

from rhodecode.lib.exceptions import LdapImportError

from rhodecode.model.user import UserModel

from rhodecode.model.repo import RepoModel

from rhodecode.model.db import User, UsersGroup, Group

from rhodecode import BACKENDS

log = logging.getLogger(__name__)

#this is needed to translate the messages using _() in validators

class State_obj(object):

    _ = staticmethod(_)

#==============================================================================

# VALIDATORS

#==============================================================================

class ValidAuthToken(formencode.validators.FancyValidator):

    messages = {'invalid_token':_('Token mismatch')}

    def validate_python(self, value, state):

        if value != authentication_token():

            raise formencode.Invalid(self.message('invalid_token', state,

            else:

                log.warning('user %s not authenticated', username)

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

                                         state=State_obj), value, state,

                                         error_dict=self.e_dict)

class ValidRepoUser(formencode.validators.FancyValidator):

    def to_python(self, value, state):

        try:

            User.query().filter(User.active == True)\

                .filter(User.username == value).one()

        except Exception:

            raise formencode.Invalid(_('This username is not valid'),

                                     value, state)

        return value

def ValidRepoName(edit, old_data):

    class _ValidRepoName(formencode.validators.FancyValidator):

        def to_python(self, value, state):

            repo_name = value.get('repo_name')

            slug = repo_name_slug(repo_name)

                e_dict = {'repo_name': _('This repository name is disallowed')}

                raise formencode.Invalid('', value, state, error_dict=e_dict)

            if value.get('repo_group'):

                gr = Group.get(value.get('repo_group'))

                group_path = gr.full_path

                # value needs to be aware of group name in order to check

                # db key This is an actuall just the name to store in the

                # database

                repo_name_full = group_path + Group.url_sep() + repo_name

            else:

                group_path = ''

                repo_name_full = repo_name

            value['repo_name_full'] = repo_name_full

            if old_data.get('repo_name') != repo_name_full or not edit:

                if group_path != '':

                    if RepoModel().get_by_repo_name(repo_name_full,):

                        e_dict = {'repo_name':_('This repository already '

                                                'exists in group "%s"') %

                                  gr.group_name}

                        raise formencode.Invalid('', value, state,

                                                 error_dict=e_dict)

                else:

                    if RepoModel().get_by_repo_name(repo_name_full):

                        e_dict = {'repo_name':_('This repository '

                                                'already exists')}

                        raise formencode.Invalid('', value, state,

                                                 error_dict=e_dict)

            return value

    return _ValidRepoName

def ValidForkName():

    class _ValidForkName(formencode.validators.FancyValidator):

        def to_python(self, value, state):

            repo_name = value.get('fork_name')

            slug = repo_name_slug(repo_name)

                e_dict = {'repo_name': _('This repository name is disallowed')}

                raise formencode.Invalid('', value, state, error_dict=e_dict)

            if RepoModel().get_by_repo_name(repo_name):

                e_dict = {'fork_name':_('This repository '

                                        'already exists')}

                raise formencode.Invalid('', value, state,

                                         error_dict=e_dict)

            return value

    return _ValidForkName

def SlugifyName():

    class _SlugifyName(formencode.validators.FancyValidator):

        def to_python(self, value, state):

            return repo_name_slug(value)

    return _SlugifyName

def ValidCloneUri():

    from mercurial.httprepo import httprepository, httpsrepository

    from rhodecode.lib.utils import make_ui