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forms.py
351 lines | 14.7 KiB | text/x-python | PythonLexer
""" this is forms validation classes
http://formencode.org/module-formencode.validators.html
for list off all availible validators
we can create our own validators
The table below outlines the options which can be used in a schema in addition to the validators themselves
pre_validators [] These validators will be applied before the schema
chained_validators [] These validators will be applied after the schema
allow_extra_fields False If True, then it is not an error when keys that aren't associated with a validator are present
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())
"""
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.lib.auth import check_password, get_crypt_password
from pylons_app.model import meta
from pylons_app.model.user_model import UserModel
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 formencode
import logging
import os
import pylons_app.lib.helpers as h
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,
search_number=value), value, state)
def ValidUsername(edit, old_data):
class _ValidUsername(formencode.validators.FancyValidator):
def validate_python(self, value, state):
if value in ['default', 'new_user']:
raise formencode.Invalid(_('Invalid username'), value, state)
#check if user is uniq
sa = meta.Session
old_un = None
if edit:
old_un = sa.query(User).get(old_data.get('user_id')).username
if old_un != value or not edit:
if sa.query(User).filter(User.username == value).scalar():
raise formencode.Invalid(_('This username already exists') ,
value, state)
meta.Session.remove()
return _ValidUsername
class ValidPassword(formencode.validators.FancyValidator):
def to_python(self, value, state):
if value:
return get_crypt_password(value)
class ValidAuth(formencode.validators.FancyValidator):
messages = {
'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):
password = value['password']
username = value['username']
user = UserModel().get_user_by_name(username)
if user is None:
raise formencode.Invalid(self.message('invalid_password',
state=State_obj), value, state,
error_dict=self.e_dict)
if user:
if user.active:
if user.username == username and check_password(password,
user.password):
return value
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)
else:
log.warning('user %s is disabled', username)
raise formencode.Invalid(self.message('disabled_account',
state=State_obj),
value, state,
error_dict=self.e_dict_disable)
class ValidRepoUser(formencode.validators.FancyValidator):
def to_python(self, value, state):
try:
self.user_db = meta.Session.query(User)\
.filter(User.active == True)\
.filter(User.username == value).one()
except Exception:
raise formencode.Invalid(_('This username is not valid'),
value, state)
finally:
meta.Session.remove()
return self.user_db.user_id
def ValidRepoName(edit, old_data):
class _ValidRepoName(formencode.validators.FancyValidator):
def to_python(self, value, state):
slug = h.repo_name_slug(value)
if slug in ['_admin']:
raise formencode.Invalid(_('This repository name is disallowed'),
value, state)
if old_data.get('repo_name') != value or not edit:
sa = meta.Session
if sa.query(Repository).filter(Repository.repo_name == slug).scalar():
raise formencode.Invalid(_('This repository already exists') ,
value, state)
meta.Session.remove()
return slug
return _ValidRepoName
class ValidPerms(formencode.validators.FancyValidator):
messages = {'perm_new_user_name':_('This username is not valid')}
def to_python(self, value, state):
perms_update = []
perms_new = []
#build a list of permission to update and new permission to create
for k, v in value.items():
if k.startswith('perm_'):
if k.startswith('perm_new_user'):
new_perm = value.get('perm_new_user', False)
new_user = value.get('perm_new_user_name', False)
if new_user and new_perm:
if (new_user, new_perm) not in perms_new:
perms_new.append((new_user, new_perm))
else:
usr = k[5:]
if usr == 'default':
if value['private']:
#set none for default when updating to private repo
v = 'repository.none'
perms_update.append((usr, v))
value['perms_updates'] = perms_update
value['perms_new'] = perms_new
sa = meta.Session
for k, v in perms_new:
try:
self.user_db = sa.query(User)\
.filter(User.active == True)\
.filter(User.username == k).one()
except Exception:
msg = self.message('perm_new_user_name',
state=State_obj)
raise formencode.Invalid(msg, value, state, error_dict={'perm_new_user_name':msg})
return value
class ValidSettings(formencode.validators.FancyValidator):
def to_python(self, value, state):
#settings form can't edit user
if value.has_key('user'):
del['value']['user']
return value
class ValidPath(formencode.validators.FancyValidator):
def to_python(self, value, state):
isdir = os.path.isdir(value.replace('*', ''))
if (value.endswith('/*') or value.endswith('/**')) and isdir:
return value
elif not isdir:
msg = _('This is not a valid path')
else:
msg = _('You need to specify * or ** at the end of path (ie. /tmp/*)')
raise formencode.Invalid(msg, value, state,
error_dict={'paths_root_path':msg})
def UniqSystemEmail(old_data):
class _UniqSystemEmail(formencode.validators.FancyValidator):
def to_python(self, value, state):
if old_data.get('email') != value:
sa = meta.Session
try:
user = sa.query(User).filter(User.email == value).scalar()
if user:
raise formencode.Invalid(_("That e-mail address is already taken") ,
value, state)
finally:
meta.Session.remove()
return value
return _UniqSystemEmail
class ValidSystemEmail(formencode.validators.FancyValidator):
def to_python(self, value, state):
sa = meta.Session
try:
user = sa.query(User).filter(User.email == value).scalar()
if user is None:
raise formencode.Invalid(_("That e-mail address doesn't exist.") ,
value, state)
finally:
meta.Session.remove()
return value
#===============================================================================
# FORMS
#===============================================================================
class LoginForm(formencode.Schema):
allow_extra_fields = True
filter_extra_fields = True
username = UnicodeString(
strip=True,
min=3,
not_empty=True,
messages={
'empty':_('Please enter a login'),
'tooShort':_('Enter a value %(min)i characters long or more')}
)
password = UnicodeString(
strip=True,
min=3,
not_empty=True,
messages={
'empty':_('Please enter a password'),
'tooShort':_('Enter a value %(min)i characters long or more')}
)
#chained validators have access to all data
chained_validators = [ValidAuth]
def UserForm(edit=False, old_data={}):
class _UserForm(formencode.Schema):
allow_extra_fields = True
filter_extra_fields = True
username = All(UnicodeString(strip=True, min=3, not_empty=True), ValidUsername(edit, old_data))
if edit:
new_password = All(UnicodeString(strip=True, min=3, not_empty=False), ValidPassword)
admin = StringBoolean(if_missing=False)
else:
password = All(UnicodeString(strip=True, min=8, not_empty=True), ValidPassword)
active = StringBoolean(if_missing=False)
name = UnicodeString(strip=True, min=3, not_empty=True)
lastname = UnicodeString(strip=True, min=3, not_empty=True)
email = All(Email(not_empty=True), UniqSystemEmail(old_data))
return _UserForm
RegisterForm = UserForm
def PasswordResetForm():
class _PasswordResetForm(formencode.Schema):
allow_extra_fields = True
filter_extra_fields = True
email = All(ValidSystemEmail(), Email(not_empty=True))
return _PasswordResetForm
def RepoForm(edit=False, old_data={}):
class _RepoForm(formencode.Schema):
allow_extra_fields = True
filter_extra_fields = False
repo_name = All(UnicodeString(strip=True, min=1, not_empty=True), ValidRepoName(edit, old_data))
description = UnicodeString(strip=True, min=3, not_empty=True)
private = StringBoolean(if_missing=False)
if edit:
user = All(Int(not_empty=True), ValidRepoUser)
chained_validators = [ValidPerms]
return _RepoForm
def RepoSettingsForm(edit=False, old_data={}):
class _RepoForm(formencode.Schema):
allow_extra_fields = True
filter_extra_fields = False
repo_name = All(UnicodeString(strip=True, min=1, not_empty=True), ValidRepoName(edit, old_data))
description = UnicodeString(strip=True, min=3, not_empty=True)
private = StringBoolean(if_missing=False)
chained_validators = [ValidPerms, ValidSettings]
return _RepoForm
def ApplicationSettingsForm():
class _ApplicationSettingsForm(formencode.Schema):
allow_extra_fields = True
filter_extra_fields = False
hg_app_title = UnicodeString(strip=True, min=3, not_empty=True)
hg_app_realm = UnicodeString(strip=True, min=3, not_empty=True)
return _ApplicationSettingsForm
def ApplicationUiSettingsForm():
class _ApplicationUiSettingsForm(formencode.Schema):
allow_extra_fields = True
filter_extra_fields = False
web_push_ssl = OneOf(['true', 'false'], if_missing='false')
paths_root_path = All(ValidPath(), UnicodeString(strip=True, min=3, not_empty=True))
hooks_changegroup_update = OneOf(['True', 'False'], if_missing=False)
hooks_changegroup_repo_size = OneOf(['True', 'False'], if_missing=False)
return _ApplicationUiSettingsForm
def DefaultPermissionsForm(perms_choices, register_choices, create_choices):
class _DefaultPermissionsForm(formencode.Schema):
allow_extra_fields = True
filter_extra_fields = True
overwrite_default = OneOf(['true', 'false'], if_missing='false')
default_perm = OneOf(perms_choices)
default_register = OneOf(register_choices)
default_create = OneOf(create_choices)
return _DefaultPermissionsForm