pvc/client-cli/cli_lib/network.py

380 lines
16 KiB
Python

#!/usr/bin/env python3
# network.py - PVC CLI client function library, Network fuctions
# Part of the Parallel Virtual Cluster (PVC) system
#
# Copyright (C) 2018-2019 Joshua M. Boniface <joshua@boniface.me>
#
# 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 <https://www.gnu.org/licenses/>.
#
###############################################################################
import difflib
import colorama
import click
import cli_lib.ansiprint as ansiprint
#
# Cluster search functions
#
def isValidMAC(macaddr):
allowed = re.compile(r"""
(
^([0-9A-F]{2}[:]){5}([0-9A-F]{2})$
)
""",
re.VERBOSE|re.IGNORECASE)
if allowed.match(macaddr):
return True
else:
return False
def isValidIP(ipaddr):
ip4_blocks = str(ipaddr).split(".")
if len(ip4_blocks) == 4:
for block in ip4_blocks:
# Check if number is digit, if not checked before calling this function
if not block.isdigit():
return False
tmp = int(block)
if 0 > tmp > 255:
return False
return True
return False
#
# Direct functions
#
def getOutputColours(network_information):
if network_information['ip6']['network'] != "None":
v6_flag_colour = ansiprint.green()
else:
v6_flag_colour = ansiprint.blue()
if network_information['ip4']['network'] != "None":
v4_flag_colour = ansiprint.green()
else:
v4_flag_colour = ansiprint.blue()
if network_information['ip6']['dhcp_flag'] == "True":
dhcp6_flag_colour = ansiprint.green()
else:
dhcp6_flag_colour = ansiprint.blue()
if network_information['ip4']['dhcp_flag'] == "True":
dhcp4_flag_colour = ansiprint.green()
else:
dhcp4_flag_colour = ansiprint.blue()
return v6_flag_colour, v4_flag_colour, dhcp6_flag_colour, dhcp4_flag_colour
def format_info(network_information, long_output):
if not network_information:
click.echo("No network found")
return
v6_flag_colour, v4_flag_colour, dhcp6_flag_colour, dhcp4_flag_colour = getOutputColours(network_information)
# Format a nice output: do this line-by-line then concat the elements at the end
ainformation = []
ainformation.append('{}Virtual network information:{}'.format(ansiprint.bold(), ansiprint.end()))
ainformation.append('')
# Basic information
ainformation.append('{}VNI:{} {}'.format(ansiprint.purple(), ansiprint.end(), network_information['vni']))
ainformation.append('{}Type:{} {}'.format(ansiprint.purple(), ansiprint.end(), network_information['type']))
ainformation.append('{}Description:{} {}'.format(ansiprint.purple(), ansiprint.end(), network_information['description']))
if network_information['type'] == 'managed':
ainformation.append('{}Domain:{} {}'.format(ansiprint.purple(), ansiprint.end(), network_information['domain']))
ainformation.append('{}DNS Servers:{} {}'.format(ansiprint.purple(), ansiprint.end(), ', '.join(network_information['name_servers'])))
if network_information['ip6']['network'] != "None":
ainformation.append('')
ainformation.append('{}IPv6 network:{} {}'.format(ansiprint.purple(), ansiprint.end(), network_information['ip6']['network']))
ainformation.append('{}IPv6 gateway:{} {}'.format(ansiprint.purple(), ansiprint.end(), network_information['ip6']['gateway']))
ainformation.append('{}DHCPv6 enabled:{} {}{}{}'.format(ansiprint.purple(), ansiprint.end(), dhcp6_flag_colour, network_information['ip6']['dhcp_flag'], ansiprint.end()))
if network_information['ip4']['network'] != "None":
ainformation.append('')
ainformation.append('{}IPv4 network:{} {}'.format(ansiprint.purple(), ansiprint.end(), network_information['ip4']['network']))
ainformation.append('{}IPv4 gateway:{} {}'.format(ansiprint.purple(), ansiprint.end(), network_information['ip4']['gateway']))
ainformation.append('{}DHCPv4 enabled:{} {}{}{}'.format(ansiprint.purple(), ansiprint.end(), dhcp4_flag_colour, network_information['ip4']['dhcp_flag'], ansiprint.end()))
if network_information['ip4']['dhcp_flag'] == "True":
ainformation.append('{}DHCPv4 range:{} {} - {}'.format(ansiprint.purple(), ansiprint.end(), network_information['ip4']['dhcp_start'], network_information['ip4']['dhcp_end']))
if long_output:
dhcp4_reservations_list = getNetworkDHCPReservations(zk_conn, vni)
if dhcp4_reservations_list:
ainformation.append('')
ainformation.append('{}Client DHCPv4 reservations:{}'.format(ansiprint.bold(), ansiprint.end()))
ainformation.append('')
# Only show static reservations in the detailed information
dhcp4_reservations_string = formatDHCPLeaseList(zk_conn, vni, dhcp4_reservations_list, reservations=True)
for line in dhcp4_reservations_string.split('\n'):
ainformation.append(line)
firewall_rules = zkhandler.listchildren(zk_conn, '/networks/{}/firewall_rules'.format(vni))
if firewall_rules:
ainformation.append('')
ainformation.append('{}Network firewall rules:{}'.format(ansiprint.bold(), ansiprint.end()))
ainformation.append('')
formatted_firewall_rules = get_list_firewall_rules(zk_conn, vni)
# Join it all together
click.echo('\n'.join(ainformation))
def format_list(network_list):
if not network_list:
click.echo("No network found")
return
network_list_output = []
# Determine optimal column widths
net_vni_length = 5
net_description_length = 12
net_nettype_length = 8
net_domain_length = 6
net_v6_flag_length = 6
net_dhcp6_flag_length = 7
net_v4_flag_length = 6
net_dhcp4_flag_length = 7
for network_information in network_list:
# vni column
_net_vni_length = len(str(network_information['vni'])) + 1
if _net_vni_length > net_vni_length:
net_vni_length = _net_vni_length
# description column
_net_description_length = len(network_information['description']) + 1
if _net_description_length > net_description_length:
net_description_length = _net_description_length
# domain column
_net_domain_length = len(network_information['domain']) + 1
if _net_domain_length > net_domain_length:
net_domain_length = _net_domain_length
# Format the string (header)
network_list_output.append('{bold}\
{net_vni: <{net_vni_length}} \
{net_description: <{net_description_length}} \
{net_nettype: <{net_nettype_length}} \
{net_domain: <{net_domain_length}} \
{net_v6_flag: <{net_v6_flag_length}} \
{net_dhcp6_flag: <{net_dhcp6_flag_length}} \
{net_v4_flag: <{net_v4_flag_length}} \
{net_dhcp4_flag: <{net_dhcp4_flag_length}} \
{end_bold}'.format(
bold=ansiprint.bold(),
end_bold=ansiprint.end(),
net_vni_length=net_vni_length,
net_description_length=net_description_length,
net_nettype_length=net_nettype_length,
net_domain_length=net_domain_length,
net_v6_flag_length=net_v6_flag_length,
net_dhcp6_flag_length=net_dhcp6_flag_length,
net_v4_flag_length=net_v4_flag_length,
net_dhcp4_flag_length=net_dhcp4_flag_length,
net_vni='VNI',
net_description='Description',
net_nettype='Type',
net_domain='Domain',
net_v6_flag='IPv6',
net_dhcp6_flag='DHCPv6',
net_v4_flag='IPv4',
net_dhcp4_flag='DHCPv4',
)
)
for network_information in network_list:
v6_flag_colour, v4_flag_colour, dhcp6_flag_colour, dhcp4_flag_colour = getOutputColours(network_information)
if network_information['ip4']['network'] != "None":
v4_flag = 'True'
else:
v4_flag = 'False'
if network_information['ip6']['network'] != "None":
v6_flag = 'True'
else:
v6_flag = 'False'
if network_information['ip4']['dhcp_flag'] == "True":
dhcp4_range = '{} - {}'.format(network_information['ip4']['dhcp_start'], network_information['ip4']['dhcp_end'])
else:
dhcp4_range = 'N/A'
network_list_output.append(
'{bold}\
{net_vni: <{net_vni_length}} \
{net_description: <{net_description_length}} \
{net_nettype: <{net_nettype_length}} \
{net_domain: <{net_domain_length}} \
{v6_flag_colour}{net_v6_flag: <{net_v6_flag_length}}{colour_off} \
{dhcp6_flag_colour}{net_dhcp6_flag: <{net_dhcp6_flag_length}}{colour_off} \
{v4_flag_colour}{net_v4_flag: <{net_v4_flag_length}}{colour_off} \
{dhcp4_flag_colour}{net_dhcp4_flag: <{net_dhcp4_flag_length}}{colour_off} \
{end_bold}'.format(
bold='',
end_bold='',
net_vni_length=net_vni_length,
net_description_length=net_description_length,
net_nettype_length=net_nettype_length,
net_domain_length=net_domain_length,
net_v6_flag_length=net_v6_flag_length,
net_dhcp6_flag_length=net_dhcp6_flag_length,
net_v4_flag_length=net_v4_flag_length,
net_dhcp4_flag_length=net_dhcp4_flag_length,
net_vni=network_information['vni'],
net_description=network_information['description'],
net_nettype=network_information['type'],
net_domain=network_information['domain'],
net_v6_flag=v6_flag,
v6_flag_colour=v6_flag_colour,
net_dhcp6_flag=network_information['ip6']['dhcp_flag'],
dhcp6_flag_colour=dhcp6_flag_colour,
net_v4_flag=v4_flag,
v4_flag_colour=v4_flag_colour,
net_dhcp4_flag=network_information['ip4']['dhcp_flag'],
dhcp4_flag_colour=dhcp4_flag_colour,
colour_off=ansiprint.end()
)
)
click.echo('\n'.join(sorted(network_list_output)))
def format_list_dhcp(dhcp_lease_list):
dhcp_lease_list_output = []
# Determine optimal column widths
lease_hostname_length = 9
lease_ip4_address_length = 11
lease_mac_address_length = 13
lease_timestamp_length = 13
for dhcp_lease_information in dhcp_lease_list:
# hostname column
_lease_hostname_length = len(dhcp_lease_information['hostname']) + 1
if _lease_hostname_length > lease_hostname_length:
lease_hostname_length = _lease_hostname_length
# ip4_address column
_lease_ip4_address_length = len(dhcp_lease_information['ip4_address']) + 1
if _lease_ip4_address_length > lease_ip4_address_length:
lease_ip4_address_length = _lease_ip4_address_length
# mac_address column
_lease_mac_address_length = len(dhcp_lease_information['mac_address']) + 1
if _lease_mac_address_length > lease_mac_address_length:
lease_mac_address_length = _lease_mac_address_length
# Format the string (header)
dhcp_lease_list_output.append('{bold}\
{lease_hostname: <{lease_hostname_length}} \
{lease_ip4_address: <{lease_ip4_address_length}} \
{lease_mac_address: <{lease_mac_address_length}} \
{lease_timestamp: <{lease_timestamp_length}} \
{end_bold}'.format(
bold=ansiprint.bold(),
end_bold=ansiprint.end(),
lease_hostname_length=lease_hostname_length,
lease_ip4_address_length=lease_ip4_address_length,
lease_mac_address_length=lease_mac_address_length,
lease_timestamp_length=lease_timestamp_length,
lease_hostname='Hostname',
lease_ip4_address='IP Address',
lease_mac_address='MAC Address',
lease_timestamp='Timestamp'
)
)
for dhcp_lease_information in dhcp_lease_list:
dhcp_lease_list_output.append('{bold}\
{lease_hostname: <{lease_hostname_length}} \
{lease_ip4_address: <{lease_ip4_address_length}} \
{lease_mac_address: <{lease_mac_address_length}} \
{lease_timestamp: <{lease_timestamp_length}} \
{end_bold}'.format(
bold='',
end_bold='',
lease_hostname_length=lease_hostname_length,
lease_ip4_address_length=lease_ip4_address_length,
lease_mac_address_length=lease_mac_address_length,
lease_timestamp_length=12,
lease_hostname=dhcp_lease_information['hostname'],
lease_ip4_address=dhcp_lease_information['ip4_address'],
lease_mac_address=dhcp_lease_information['mac_address'],
lease_timestamp=dhcp_lease_information['timestamp']
)
)
click.echo('\n'.join(sorted(dhcp_lease_list_output)))
def format_list_acl(acl_list):
acl_list_output = []
# Determine optimal column widths
acl_direction_length = 10
acl_order_length = 6
acl_description_length = 12
acl_rule_length = 5
for acl_information in acl_list:
# order column
_acl_order_length = len(str(acl_information['order'])) + 1
if _acl_order_length > acl_order_length:
acl_order_length = _acl_order_length
# description column
_acl_description_length = len(acl_information['description']) + 1
if _acl_description_length > acl_description_length:
acl_description_length = _acl_description_length
# rule column
_acl_rule_length = len(acl_information['rule']) + 1
if _acl_rule_length > acl_rule_length:
acl_rule_length = _acl_rule_length
# Format the string (header)
acl_list_output.append('{bold}\
{acl_direction: <{acl_direction_length}} \
{acl_order: <{acl_order_length}} \
{acl_description: <{acl_description_length}} \
{acl_rule: <{acl_rule_length}} \
{end_bold}'.format(
bold=ansiprint.bold(),
end_bold=ansiprint.end(),
acl_direction_length=acl_direction_length,
acl_order_length=acl_order_length,
acl_description_length=acl_description_length,
acl_rule_length=acl_rule_length,
acl_direction='Direction',
acl_order='Order',
acl_description='Description',
acl_rule='Rule',
)
)
for acl_information in acl_list:
acl_list_output.append('{bold}\
{acl_direction: <{acl_direction_length}} \
{acl_order: <{acl_order_length}} \
{acl_description: <{acl_description_length}} \
{acl_rule: <{acl_rule_length}} \
{end_bold}'.format(
bold='',
end_bold='',
acl_direction_length=acl_direction_length,
acl_order_length=acl_order_length,
acl_description_length=acl_description_length,
acl_rule_length=acl_rule_length,
acl_direction=acl_information['direction'],
acl_order=acl_information['order'],
acl_description=acl_information['description'],
acl_rule=acl_information['rule'],
)
)
click.echo('\n'.join(sorted(acl_list_output)))