def validate_integer(value):
"""Validate integer"""
try:
if str(int(value)) != str(value):
raise MCVirtTypeError('Must be an integer')
except (ValueError, TypeError):
raise MCVirtTypeError('Must be an integer')
def validate_drbd_resource(variable):
"""Validate DRBD resource name"""
valid_name = re.compile('^mcvirt_vm-(.+)-disk-(\d+)$')
result = valid_name.match(variable)
if not result:
raise MCVirtTypeError('Not a valid resource name')
# Validate the hostname in the DRBD resource
ArgumentValidator.validate_hostname(result.groups()[0])
ArgumentValidator.validate_positive_integer(result.groups()[1])
if int(result.groups()[1]) > 99:
raise MCVirtTypeError('Not a valid resource name')
def validate_ip_address(ip_address):
"""Validate an IPv4 IP address"""
pattern = re.compile(
r"^((([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])[ (\[]?(\.|dot)"
"[ )\]]?){3}([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5]))$")
if not pattern.match(ip_address):
raise MCVirtTypeError('%s is not a valid IP address' % ip_address)
def validate_network_name(name):
"""Validate the name of a network"""
exception_message = ('Network name must only use alpha-numeric characters and'
' not be any longer than 64 characters in length')
if name == 'default':
raise MCVirtTypeError('Network name cannot be \'default\'')
try:
if len(name) > 64 or not len(name):
raise MCVirtTypeError(exception_message)
disallowed = re.compile(r"[^A-Z\d]", re.IGNORECASE)
if disallowed.search(name):
raise MCVirtTypeError(exception_message)
except (ValueError, TypeError):
raise MCVirtTypeError(exception_message)
def validate_positive_integer(value):
"""Validate that a given variable is a
positive integer
"""
ArgumentValidator.validate_integer(value)
if int(value) < 1:
raise MCVirtTypeError('Not a positive integer')
def validate_network_name(name):
"""Validate the name of a network"""
exception_message = (
'Network name must only use alpha-numeric characters and dashes,'
' be 64 characters or less in length'
' and start with an alpha-numeric character')
if name == 'default':
raise MCVirtTypeError('Network name cannot be \'default\'')
try:
if len(name) > 64 or not len(name):
raise MCVirtTypeError(exception_message)
disallowed = re.compile(r"[^A-Z\d-]", re.IGNORECASE)
if disallowed.search(name):
raise MCVirtTypeError(exception_message)
if name.startswith('-') or name.endswith('-'):
raise MCVirtTypeError(exception_message)
except (ValueError, TypeError):
raise MCVirtTypeError(exception_message)
def validate_hostname(hostname):
"""Validate a hostname"""
exception_message = ('Hostname must only use alpha-numeric characters and dashes,'
' be 64 characters or less in length'
' and start with an alpha-numeric character')
try:
# Check length
if len(hostname) > 64 or not len(hostname):
raise MCVirtTypeError(exception_message)
disallowed = re.compile(r"[^A-Z\d-]", re.IGNORECASE)
if disallowed.search(hostname):
raise MCVirtTypeError(exception_message)
if hostname.startswith('-') or hostname.endswith('-'):
raise MCVirtTypeError(exception_message)
except (ValueError, TypeError):
raise MCVirtTypeError(exception_message)
def validate_boolean(variable):
"""Ensure variable is a boolean"""
if type(variable) is not bool:
raise MCVirtTypeError('Not a boolean')
def validate_vg_name(vg_name):
"""Validate a volume group name"""
pattern = re.compile("^[A-Z0-9a-z_-]+$")
if not pattern.match(vg_name):
raise MCVirtTypeError('%s is not a valid volume group name' %
vg_name)