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validators.py
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"""
Set of generic validators
"""
import os
import re
import formencode
import logging
from pylons.i18n.translation import _
from webhelpers.pylonslib.secure_form import authentication_token
from formencode.validators import (
UnicodeString, OneOf, Int, Number, Regex, Email, Bool, StringBoolean, Set
)
from rhodecode.lib.utils import repo_name_slug
from rhodecode.model.db import RepoGroup, Repository, UsersGroup, User
from rhodecode.lib.exceptions import LdapImportError
from rhodecode.config.routing import ADMIN_PREFIX
# silence warnings and pylint
UnicodeString, OneOf, Int, Number, Regex, Email, Bool, StringBoolean, Set
log = logging.getLogger(__name__)
class StateObj(object):
"""
this is needed to translate the messages using _() in validators
"""
_ = staticmethod(_)
def M(self, key, state=None, **kwargs):
"""
returns string from self.message based on given key,
passed kw params are used to substitute %(named)s params inside
translated strings
:param msg:
:param state:
"""
if state is None:
state = StateObj()
else:
state._ = staticmethod(_)
#inject validator into state object
return self.message(key, state, **kwargs)
def ValidUsername(edit=False, old_data={}):
class _validator(formencode.validators.FancyValidator):
messages = {
'username_exists': _(u'Username "%(username)s" already exists'),
'system_invalid_username':
_(u'Username "%(username)s" is forbidden'),
'invalid_username':
_(u'Username may only contain alphanumeric characters '
'underscores, periods or dashes and must begin with '
'alphanumeric character')
}
def validate_python(self, value, state):
if value in ['default', 'new_user']:
msg = M(self, 'system_invalid_username', state, username=value)
raise formencode.Invalid(msg, value, state)
#check if user is unique
old_un = None
if edit:
old_un = User.get(old_data.get('user_id')).username
if old_un != value or not edit:
if User.get_by_username(value, case_insensitive=True):
msg = M(self, 'username_exists', state, username=value)
raise formencode.Invalid(msg, value, state)
if re.match(r'^[a-zA-Z0-9]{1}[a-zA-Z0-9\-\_\.]+$', value) is None:
msg = M(self, 'invalid_username', state)
raise formencode.Invalid(msg, value, state)
return _validator
def ValidRepoUser():
class _validator(formencode.validators.FancyValidator):
messages = {
'invalid_username': _(u'Username %(username)s is not valid')
}
def validate_python(self, value, state):
try:
User.query().filter(User.active == True)\
.filter(User.username == value).one()
except Exception:
msg = M(self, 'invalid_username', state, username=value)
raise formencode.Invalid(msg, value, state,
error_dict=dict(username=msg)
)
return _validator
def ValidUsersGroup(edit=False, old_data={}):
class _validator(formencode.validators.FancyValidator):
messages = {
'invalid_group': _(u'Invalid users group name'),
'group_exist': _(u'Users group "%(usersgroup)s" already exists'),
'invalid_usersgroup_name':
_(u'users group name may only contain alphanumeric '
'characters underscores, periods or dashes and must begin '
'with alphanumeric character')
}
def validate_python(self, value, state):
if value in ['default']:
msg = M(self, 'invalid_group', state)
raise formencode.Invalid(msg, value, state,
error_dict=dict(users_group_name=msg)
)
#check if group is unique
old_ugname = None
if edit:
old_id = old_data.get('users_group_id')
old_ugname = UsersGroup.get(old_id).users_group_name
if old_ugname != value or not edit:
is_existing_group = UsersGroup.get_by_group_name(value,
case_insensitive=True)
if is_existing_group:
msg = M(self, 'group_exist', state, usersgroup=value)
raise formencode.Invalid(msg, value, state,
error_dict=dict(users_group_name=msg)
)
if re.match(r'^[a-zA-Z0-9]{1}[a-zA-Z0-9\-\_\.]+$', value) is None:
msg = M(self, 'invalid_usersgroup_name', state)
raise formencode.Invalid(msg, value, state,
error_dict=dict(users_group_name=msg)
)
return _validator
def ValidReposGroup(edit=False, old_data={}):
class _validator(formencode.validators.FancyValidator):
messages = {
'group_parent_id': _(u'Cannot assign this group as parent'),
'group_exists': _(u'Group "%(group_name)s" already exists'),
'repo_exists':
_(u'Repository with name "%(group_name)s" already exists')
}
def validate_python(self, value, state):
# TODO WRITE VALIDATIONS
group_name = value.get('group_name')
group_parent_id = value.get('group_parent_id')
# slugify repo group just in case :)
slug = repo_name_slug(group_name)
# check for parent of self
parent_of_self = lambda: (
old_data['group_id'] == int(group_parent_id)
if group_parent_id else False
)
if edit and parent_of_self():
msg = M(self, 'group_parent_id', state)
raise formencode.Invalid(msg, value, state,
error_dict=dict(group_parent_id=msg)
)
old_gname = None
if edit:
old_gname = RepoGroup.get(old_data.get('group_id')).group_name
if old_gname != group_name or not edit:
# check group
gr = RepoGroup.query()\
.filter(RepoGroup.group_name == slug)\
.filter(RepoGroup.group_parent_id == group_parent_id)\
.scalar()
if gr:
msg = M(self, 'group_exists', state, group_name=slug)
raise formencode.Invalid(msg, value, state,
error_dict=dict(group_name=msg)
)
# check for same repo
repo = Repository.query()\
.filter(Repository.repo_name == slug)\
.scalar()
if repo:
msg = M(self, 'repo_exists', state, group_name=slug)
raise formencode.Invalid(msg, value, state,
error_dict=dict(group_name=msg)
)
return _validator
def ValidPassword():
class _validator(formencode.validators.FancyValidator):
messages = {
'invalid_password':
_(u'Invalid characters (non-ascii) in password')
}
def validate_python(self, value, state):
try:
(value or '').decode('ascii')
except UnicodeError:
msg = M(self, 'invalid_password', state)
raise formencode.Invalid(msg, value, state,)
return _validator
def ValidPasswordsMatch():
class _validator(formencode.validators.FancyValidator):
messages = {
'password_mismatch': _(u'Passwords do not match'),
}
def validate_python(self, value, state):
pass_val = value.get('password') or value.get('new_password')
if pass_val != value['password_confirmation']:
msg = M(self, 'password_mismatch', state)
raise formencode.Invalid(msg, value, state,
error_dict=dict(password_confirmation=msg)
)
return _validator
def ValidAuth():
class _validator(formencode.validators.FancyValidator):
messages = {
'invalid_password': _(u'invalid password'),
'invalid_username': _(u'invalid user name'),
'disabled_account': _(u'Your account is disabled')
}
def validate_python(self, value, state):
from rhodecode.lib.auth import authenticate
password = value['password']
username = value['username']
if not authenticate(username, password):
user = User.get_by_username(username)
if user and user.active is False:
log.warning('user %s is disabled' % username)
msg = M(self, 'disabled_account', state)
raise formencode.Invalid(msg, value, state,
error_dict=dict(username=msg)
)
else:
log.warning('user %s failed to authenticate' % username)
msg = M(self, 'invalid_username', state)
msg2 = M(self, 'invalid_password', state)
raise formencode.Invalid(msg, value, state,
error_dict=dict(username=msg, password=msg2)
)
return _validator
def ValidAuthToken():
class _validator(formencode.validators.FancyValidator):
messages = {
'invalid_token': _(u'Token mismatch')
}
def validate_python(self, value, state):
if value != authentication_token():
msg = M(self, 'invalid_token', state)
raise formencode.Invalid(msg, value, state)
return _validator
def ValidRepoName(edit=False, old_data={}):
class _validator(formencode.validators.FancyValidator):
messages = {
'invalid_repo_name':
_(u'Repository name %(repo)s is disallowed'),
'repository_exists':
_(u'Repository named %(repo)s already exists'),
'repository_in_group_exists': _(u'Repository "%(repo)s" already '
'exists in group "%(group)s"'),
'same_group_exists': _(u'Repositories group with name "%(repo)s" '
'already exists')
}
def _to_python(self, value, state):
repo_name = repo_name_slug(value.get('repo_name', ''))
repo_group = value.get('repo_group')
if repo_group:
gr = RepoGroup.get(repo_group)
group_path = gr.full_path
group_name = gr.group_name
# value needs to be aware of group name in order to check
# db key This is an actual just the name to store in the
# database
repo_name_full = group_path + RepoGroup.url_sep() + repo_name
else:
group_name = group_path = ''
repo_name_full = repo_name
value['repo_name'] = repo_name
value['repo_name_full'] = repo_name_full
value['group_path'] = group_path
value['group_name'] = group_name
return value
def validate_python(self, value, state):
repo_name = value.get('repo_name')
repo_name_full = value.get('repo_name_full')
group_path = value.get('group_path')
group_name = value.get('group_name')
if repo_name in [ADMIN_PREFIX, '']:
msg = M(self, 'invalid_repo_name', state, repo=repo_name)
raise formencode.Invalid(msg, value, state,
error_dict=dict(repo_name=msg)
)
rename = old_data.get('repo_name') != repo_name_full
create = not edit
if rename or create:
if group_path != '':
if Repository.get_by_repo_name(repo_name_full):
msg = M(self, 'repository_in_group_exists', state,
repo=repo_name, group=group_name)
raise formencode.Invalid(msg, value, state,
error_dict=dict(repo_name=msg)
)
elif RepoGroup.get_by_group_name(repo_name_full):
msg = M(self, 'same_group_exists', state,
repo=repo_name)
raise formencode.Invalid(msg, value, state,
error_dict=dict(repo_name=msg)
)
elif Repository.get_by_repo_name(repo_name_full):
msg = M(self, 'repository_exists', state,
repo=repo_name)
raise formencode.Invalid(msg, value, state,
error_dict=dict(repo_name=msg)
)
return value
return _validator
def ValidForkName(*args, **kwargs):
return ValidRepoName(*args, **kwargs)
def SlugifyName():
class _validator(formencode.validators.FancyValidator):
def _to_python(self, value, state):
return repo_name_slug(value)
def validate_python(self, value, state):
pass
return _validator
def ValidCloneUri():
from rhodecode.lib.utils import make_ui
def url_handler(repo_type, url, proto, ui=None):
if repo_type == 'hg':
from mercurial.httprepo import httprepository, httpsrepository
if proto == 'https':
httpsrepository(make_ui('db'), url).capabilities
elif proto == 'http':
httprepository(make_ui('db'), url).capabilities
elif repo_type == 'git':
#TODO: write a git url validator
pass
class _validator(formencode.validators.FancyValidator):
messages = {
'clone_uri': _(u'invalid clone url'),
'invalid_clone_uri': _(u'Invalid clone url, provide a '
'valid clone http\s url')
}
def validate_python(self, value, state):
repo_type = value.get('repo_type')
url = value.get('clone_uri')
if not url:
pass
elif url.startswith('https') or url.startswith('http'):
_type = 'https' if url.startswith('https') else 'http'
try:
url_handler(repo_type, url, _type, make_ui('db'))
except Exception:
log.exception('Url validation failed')
msg = M(self, 'clone_uri')
raise formencode.Invalid(msg, value, state,
error_dict=dict(clone_uri=msg)
)
else:
msg = M(self, 'invalid_clone_uri', state)
raise formencode.Invalid(msg, value, state,
error_dict=dict(clone_uri=msg)
)
return _validator
def ValidForkType(old_data={}):
class _validator(formencode.validators.FancyValidator):
messages = {
'invalid_fork_type': _(u'Fork have to be the same type as parent')
}
def validate_python(self, value, state):
if old_data['repo_type'] != value:
msg = M(self, 'invalid_fork_type', state)
raise formencode.Invalid(msg, value, state,
error_dict=dict(repo_type=msg)
)
return _validator
def ValidPerms(type_='repo'):
if type_ == 'group':
EMPTY_PERM = 'group.none'
elif type_ == 'repo':
EMPTY_PERM = 'repository.none'
class _validator(formencode.validators.FancyValidator):
messages = {
'perm_new_member_name':
_(u'This username or users group name 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():
# means new added member to permissions
if k.startswith('perm_new_member'):
new_perm = value.get('perm_new_member', False)
new_member = value.get('perm_new_member_name', False)
new_type = value.get('perm_new_member_type')
if new_member and new_perm:
if (new_member, new_perm, new_type) not in perms_new:
perms_new.append((new_member, new_perm, new_type))
elif k.startswith('u_perm_') or k.startswith('g_perm_'):
member = k[7:]
t = {'u': 'user',
'g': 'users_group'
}[k[0]]
if member == 'default':
if value.get('private'):
# set none for default when updating to
# private repo
v = EMPTY_PERM
perms_update.append((member, v, t))
value['perms_updates'] = perms_update
value['perms_new'] = perms_new
# update permissions
for k, v, t in perms_new:
try:
if t is 'user':
self.user_db = User.query()\
.filter(User.active == True)\
.filter(User.username == k).one()
if t is 'users_group':
self.user_db = UsersGroup.query()\
.filter(UsersGroup.users_group_active == True)\
.filter(UsersGroup.users_group_name == k).one()
except Exception:
log.exception('Updated permission failed')
msg = M(self, 'perm_new_member_type', state)
raise formencode.Invalid(msg, value, state,
error_dict=dict(perm_new_member_name=msg)
)
return value
return _validator
def ValidSettings():
class _validator(formencode.validators.FancyValidator):
def _to_python(self, value, state):
# settings form can't edit user
if 'user' in value:
del value['user']
return value
def validate_python(self, value, state):
pass
return _validator
def ValidPath():
class _validator(formencode.validators.FancyValidator):
messages = {
'invalid_path': _(u'This is not a valid path')
}
def validate_python(self, value, state):
if not os.path.isdir(value):
msg = M(self, 'invalid_path', state)
raise formencode.Invalid(msg, value, state,
error_dict=dict(paths_root_path=msg)
)
return _validator
def UniqSystemEmail(old_data={}):
class _validator(formencode.validators.FancyValidator):
messages = {
'email_taken': _(u'This e-mail address is already taken')
}
def _to_python(self, value, state):
return value.lower()
def validate_python(self, value, state):
if (old_data.get('email') or '').lower() != value:
user = User.get_by_email(value, case_insensitive=True)
if user:
msg = M(self, 'email_taken', state)
raise formencode.Invalid(msg, value, state,
error_dict=dict(email=msg)
)
return _validator
def ValidSystemEmail():
class _validator(formencode.validators.FancyValidator):
messages = {
'non_existing_email': _(u'e-mail "%(email)s" does not exist.')
}
def _to_python(self, value, state):
return value.lower()
def validate_python(self, value, state):
user = User.get_by_email(value, case_insensitive=True)
if user is None:
msg = M(self, 'non_existing_email', state, email=value)
raise formencode.Invalid(msg, value, state,
error_dict=dict(email=msg)
)
return _validator
def LdapLibValidator():
class _validator(formencode.validators.FancyValidator):
messages = {
}
def validate_python(self, value, state):
try:
import ldap
ldap # pyflakes silence !
except ImportError:
raise LdapImportError()
return _validator
def AttrLoginValidator():
class _validator(formencode.validators.FancyValidator):
messages = {
'invalid_cn':
_(u'The LDAP Login attribute of the CN must be specified - '
'this is the name of the attribute that is equivalent '
'to "username"')
}
def validate_python(self, value, state):
if not value or not isinstance(value, (str, unicode)):
msg = M(self, 'invalid_cn', state)
raise formencode.Invalid(msg, value, state,
error_dict=dict(ldap_attr_login=msg)
)
return _validator