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# Authors: Rob Crittenden <rcritten@redhat.com>
#
# Copyright (C) 2007 Red Hat
# see file 'COPYING' for use and warranty information
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
import re
def Email(mail, notEmpty=True):
"""Do some basic validation of an e-mail address.
Return True if ok
Return False if not
If notEmpty is True the this will return an error if the field
is "" or None.
"""
usernameRE = re.compile(r"^[^ \t\n\r@<>()]+$", re.I)
domainRE = re.compile(r"^[a-z0-9][a-z0-9\.\-_]*\.[a-z]+$", re.I)
if not mail or mail is None:
if notEmpty is True:
return False
else:
return True
mail = mail.strip()
s = mail.split('@', 1)
try:
username, domain=s
except ValueError:
return False
if not usernameRE.search(username):
return False
if not domainRE.search(domain):
return False
return True
def Plain(text, notEmpty=False, allowSpaces=True):
"""Do some basic validation of a plain text field
Return True if ok
Return False if not
If notEmpty is True the this will return an error if the field
is "" or None.
"""
if (text is None) or (not text.strip()):
if notEmpty is True:
return False
else:
return True
if allowSpaces:
textRE = re.compile(r"^[a-zA-Z_\-0-9\'\ ]*$")
else:
textRE = re.compile(r"^[a-zA-Z_\-0-9\']*$")
if not textRE.search(text):
return False
return True
def String(text, notEmpty=False):
"""A string type. This is much looser in what it allows than plain"""
if text is None or not text.strip():
if notEmpty is True:
return False
else:
return True
return True
def Path(text, notEmpty=False):
"""Do some basic validation of a path
Return True if ok
Return False if not
If notEmpty is True the this will return an error if the field
is "" or None.
"""
textRE = re.compile(r"^[a-zA-Z_\-0-9\\ \.\/\\:]*$")
if not text and notEmpty is True:
return False
if text is None:
if notEmpty is True:
return False
else:
return True
if not textRE.search(text):
return False
return True
def GoodName(text, notEmpty=False):
"""From shadow-utils:
User/group names must match gnu e-regex:
[a-zA-Z0-9_.][a-zA-Z0-9_.-]{0,30}[a-zA-Z0-9_.$-]?
as a non-POSIX, extension, allow "$" as the last char for
sake of Samba 3.x "add machine script"
Return True if ok
Return False if not
"""
textRE = re.compile(r"^[a-zA-Z0-9_.][a-zA-Z0-9_.-]{0,30}[a-zA-Z0-9_.$-]?$")
if not text and notEmpty is True:
return False
if text is None:
if notEmpty is True:
return False
else:
return True
m = textRE.match(text)
if not m or text != m.group(0):
return False
return True
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