Replace large if-elif-else blocks with a dict-dispatcher
This commit is contained in:
Toshio Kuratomi
parent
616fda5767
commit
624a8dd1d9
1 changed files with 308 additions and 222 deletions
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@ -28,16 +28,287 @@ else:
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mac_linux.word_fmt = '%.2x'
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# ---- IP address and network query helpers ----
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def _empty_ipaddr_query(v, vtype):
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# We don't have any query to process, so just check what type the user
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# expects, and return the IP address in a correct format
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if v:
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if vtype == 'address':
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return str(v.ip)
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elif vtype == 'network':
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return str(v)
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def _6to4_query(v, vtype, value):
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if v.version == 4:
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if v.size == 1:
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ipconv = str(v.ip)
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elif v.size > 1:
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if v.ip != v.network:
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ipconv = str(v.ip)
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else:
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ipconv = False
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if ipaddr(ipconv, 'public'):
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numbers = list(map(int, ipconv.split('.')))
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try:
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return '2002:{:02x}{:02x}:{:02x}{:02x}::1/48'.format(*numbers)
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except:
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return False
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elif v.version == 6:
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if vtype == 'address':
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if ipaddr(str(v), '2002::/16'):
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return value
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elif vtype == 'network':
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if v.ip != v.network:
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if ipaddr(str(v.ip), '2002::/16'):
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return value
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else:
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return False
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def _ip_query(v):
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if v.size == 1:
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return str(v.ip)
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if v.size > 1:
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if v.ip != v.network:
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return str(v.ip)
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def _gateway_query(v):
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if v.size > 1:
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if v.ip != v.network:
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return str(v.ip) + '/' + str(v.prefixlen)
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def _bool_ipaddr_query(v):
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if v:
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return True
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def _broadcast_query(v):
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if v.size > 1:
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return str(v.broadcast)
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def _cidr_query(v):
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return str(v)
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def _cidr_lookup_query(v, iplist, value):
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try:
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if v in iplist:
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return value
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except:
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return False
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def _host_query(v):
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if v.size == 1:
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return str(v)
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elif v.size > 1:
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if v.ip != v.network:
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return str(v.ip) + '/' + str(v.prefixlen)
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def _hostmask_query(v):
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return str(v.hostmask)
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def _int_query(v, vtype):
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if vtype == 'address':
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return int(v.ip)
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elif vtype == 'network':
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return str(int(v.ip)) + '/' + str(int(v.prefixlen))
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def _ipv4_query(v, value):
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if v.version == 6:
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try:
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return str(v.ipv4())
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except:
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return False
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else:
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return value
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def _ipv6_query(v, value):
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if v.version == 4:
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return str(v.ipv6())
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else:
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return value
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def _link_local_query(v, value):
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v_ip = netaddr.IPAddress(str(v.ip))
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if v.version == 4:
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if ipaddr(str(v_ip), '169.254.0.0/24'):
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return value
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elif v.version == 6:
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if ipaddr(str(v_ip), 'fe80::/10'):
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return value
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def _loopback_query(v, value):
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v_ip = netaddr.IPAddress(str(v.ip))
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if v_ip.is_loopback():
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return value
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def _multicast_query(v, value):
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if v.is_multicast():
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return value
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def _net_query(v):
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if v.size > 1:
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if v.ip == v.network:
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return str(v.network) + '/' + str(v.prefixlen)
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def _netmask_query(v):
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if v.size > 1:
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return str(v.netmask)
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def _network_query(v):
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if v.size > 1:
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return str(v.network)
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def _prefix_query(v):
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return int(v.prefixlen)
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def _private_query(v, value):
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if v.is_private():
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return value
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def _public_query(v, value):
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v_ip = netaddr.IPAddress(str(v.ip))
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if v_ip.is_unicast() and not v_ip.is_private() and \
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not v_ip.is_loopback() and not v_ip.is_netmask() and \
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not v_ip.is_hostmask():
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return value
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def _revdns_query(v):
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v_ip = netaddr.IPAddress(str(v.ip))
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return v_ip.reverse_dns
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def _size_query(v):
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return v.size
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def _subnet_query(v):
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return str(v.cidr)
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def _type_query(v):
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if v.size == 1:
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return 'address'
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if v.size > 1:
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if v.ip != v.network:
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return 'address'
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else:
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return 'network'
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def _unicast_query(v, value):
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if v.is_unicast():
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return value
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def _version_query(v):
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return v.version
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def _wrap_query(v, vtype, value):
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if v.version == 6:
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if vtype == 'address':
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return '[' + str(v.ip) + ']'
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elif vtype == 'network':
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return '[' + str(v.ip) + ']/' + str(v.prefixlen)
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else:
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return value
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# ---- HWaddr query helpers ----
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def _bare_query(v):
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v.dialect = netaddr.mac_bare
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return str(v)
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def _bool_hwaddr_query(v):
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if v:
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return True
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def _cisco_query(v):
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v.dialect = netaddr.mac_cisco
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return str(v)
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def _empty_hwaddr_query(v, value):
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if v:
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return value
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def _linux_query(v):
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v.dialect = mac_linux
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return str(v)
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def _postgresql_query(v):
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v.dialect = netaddr.mac_pgsql
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return str(v)
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def _unix_query(v):
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v.dialect = netaddr.mac_unix
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return str(v)
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def _win_query(v):
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v.dialect = netaddr.mac_eui48
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return str(v)
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# ---- IP address and network filters ----
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def ipaddr(value, query = '', version = False, alias = 'ipaddr'):
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''' Check if string is an IP address or network and filter it '''
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query_types = [ 'type', 'bool', 'int', 'version', 'size', 'address', 'ip', 'host', \
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'network', 'subnet', 'prefix', 'broadcast', 'netmask', 'hostmask', \
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'unicast', 'multicast', 'private', 'public', 'loopback', 'lo', \
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'revdns', 'wrap', 'ipv6', 'v6', 'ipv4', 'v4', 'cidr', 'net', \
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'hostnet', 'router', 'gateway', 'gw', 'host/prefix', 'address/prefix' ]
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query_func_extra_args = {
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'': ('vtype',),
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'6to4': ('vtype', 'value'),
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'cidr_lookup': ('iplist', 'value'),
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'int': ('vtype',),
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'ipv4': ('value',),
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'ipv6': ('value',),
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'link-local': ('value',),
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'loopback': ('value',),
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'lo': ('value',),
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'multicast': ('value',),
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'private': ('value',),
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'public': ('value',),
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'unicast': ('value',),
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'wrap': ('vtype', 'value'),
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}
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query_func_map = {
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'': _empty_ipaddr_query,
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'6to4': _6to4_query,
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'address': _ip_query,
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'address/prefix': _gateway_query,
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'bool': _bool_ipaddr_query,
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'broadcast': _broadcast_query,
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'cidr': _cidr_query,
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'cidr_lookup': _cidr_lookup_query,
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'gateway': _gateway_query,
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'gw': _gateway_query,
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'host': _host_query,
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'host/prefix': _gateway_query,
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'hostmask': _hostmask_query,
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'hostnet': _gateway_query,
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'int': _int_query,
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'ip': _ip_query,
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'ipv4': _ipv4_query,
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'ipv6': _ipv6_query,
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'link-local': _link_local_query,
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'lo': _loopback_query,
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'loopback': _loopback_query,
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'multicast': _multicast_query,
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'net': _net_query,
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'netmask': _netmask_query,
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'network': _network_query,
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'prefix': _prefix_query,
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'private': _private_query,
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'public': _public_query,
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'revdns': _revdns_query,
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'router': _gateway_query,
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'size': _size_query,
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'subnet': _subnet_query,
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'type': _type_query,
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'unicast': _unicast_query,
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'v4': _ipv4_query,
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'v6': _ipv6_query,
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'version': _version_query,
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'wrap': _wrap_query,
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}
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vtype = None
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if not value:
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return False
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@ -136,13 +407,12 @@ def ipaddr(value, query = '', version = False, alias = 'ipaddr'):
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value = str(v)
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vtype = 'network'
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v_ip = netaddr.IPAddress(str(v.ip))
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# We have a query string but it's not in the known query types. Check if
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# that string is a valid subnet, if so, we can check later if given IP
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# address/network is inside that specific subnet
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try:
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if query and query not in query_types and ipaddr(query, 'network'):
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### ?? 6to4 and link-local were True here before. Should they still?
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if query and (query not in query_func_map or query == 'cidr_lookup') and ipaddr(query, 'network'):
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iplist = netaddr.IPSet([netaddr.IPNetwork(query)])
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query = 'cidr_lookup'
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except:
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@ -154,185 +424,12 @@ def ipaddr(value, query = '', version = False, alias = 'ipaddr'):
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if version and v.version != version:
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return False
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# We don't have any query to process, so just check what type the user
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# expects, and return the IP address in a correct format
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if not query:
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if v:
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if vtype == 'address':
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return str(v.ip)
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elif vtype == 'network':
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return str(v)
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elif query == 'type':
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if v.size == 1:
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return 'address'
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if v.size > 1:
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if v.ip != v.network:
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return 'address'
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else:
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return 'network'
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elif query == 'bool':
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if v:
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return True
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elif query == 'int':
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if vtype == 'address':
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return int(v.ip)
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elif vtype == 'network':
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return str(int(v.ip)) + '/' + str(int(v.prefixlen))
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elif query == 'version':
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return v.version
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elif query == 'size':
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return v.size
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elif query in [ 'address', 'ip' ]:
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if v.size == 1:
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return str(v.ip)
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if v.size > 1:
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if v.ip != v.network:
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return str(v.ip)
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elif query == 'host':
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if v.size == 1:
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return str(v)
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elif v.size > 1:
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if v.ip != v.network:
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return str(v.ip) + '/' + str(v.prefixlen)
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elif query == 'net':
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if v.size > 1:
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if v.ip == v.network:
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return str(v.network) + '/' + str(v.prefixlen)
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elif query in [ 'hostnet', 'router', 'gateway', 'gw', 'host/prefix', 'address/prefix' ]:
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if v.size > 1:
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if v.ip != v.network:
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return str(v.ip) + '/' + str(v.prefixlen)
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elif query == 'network':
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if v.size > 1:
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return str(v.network)
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elif query == 'subnet':
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return str(v.cidr)
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elif query == 'cidr':
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return str(v)
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elif query == 'prefix':
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return int(v.prefixlen)
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elif query == 'broadcast':
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if v.size > 1:
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return str(v.broadcast)
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elif query == 'netmask':
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if v.size > 1:
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return str(v.netmask)
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elif query == 'hostmask':
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return str(v.hostmask)
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elif query == 'unicast':
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if v.is_unicast():
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return value
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elif query == 'multicast':
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if v.is_multicast():
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return value
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elif query == 'link-local':
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if v.version == 4:
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if ipaddr(str(v_ip), '169.254.0.0/24'):
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return value
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elif v.version == 6:
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if ipaddr(str(v_ip), 'fe80::/10'):
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return value
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elif query == 'private':
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if v.is_private():
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return value
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elif query == 'public':
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if v_ip.is_unicast() and not v_ip.is_private() and \
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not v_ip.is_loopback() and not v_ip.is_netmask() and \
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not v_ip.is_hostmask():
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return value
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elif query in [ 'loopback', 'lo' ]:
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if v_ip.is_loopback():
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return value
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elif query == 'revdns':
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return v_ip.reverse_dns
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elif query == 'wrap':
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if v.version == 6:
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if vtype == 'address':
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return '[' + str(v.ip) + ']'
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elif vtype == 'network':
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return '[' + str(v.ip) + ']/' + str(v.prefixlen)
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else:
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return value
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elif query in [ 'ipv6', 'v6' ]:
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if v.version == 4:
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return str(v.ipv6())
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else:
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return value
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elif query in [ 'ipv4', 'v4' ]:
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if v.version == 6:
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try:
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return str(v.ipv4())
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except:
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return False
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else:
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return value
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elif query == '6to4':
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if v.version == 4:
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if v.size == 1:
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ipconv = str(v.ip)
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elif v.size > 1:
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if v.ip != v.network:
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ipconv = str(v.ip)
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else:
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ipconv = False
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if ipaddr(ipconv, 'public'):
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numbers = list(map(int, ipconv.split('.')))
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try:
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return '2002:{:02x}{:02x}:{:02x}{:02x}::1/48'.format(*numbers)
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except:
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return False
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elif v.version == 6:
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if vtype == 'address':
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if ipaddr(str(v), '2002::/16'):
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return value
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elif vtype == 'network':
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if v.ip != v.network:
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if ipaddr(str(v.ip), '2002::/16'):
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return value
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else:
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return False
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elif query == 'cidr_lookup':
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try:
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if v in iplist:
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return value
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except:
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return False
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else:
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extras = []
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for arg in query_func_extra_args.get(query, tuple()):
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extras.append(locals()[arg])
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try:
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return query_func_map[query](v, *extras)
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except KeyError:
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try:
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float(query)
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if v.size == 1:
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@ -462,45 +559,35 @@ def ipsubnet(value, query = '', index = 'x'):
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def hwaddr(value, query = '', alias = 'hwaddr'):
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''' Check if string is a HW/MAC address and filter it '''
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query_func_extra_args = {
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'': ('value',),
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}
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query_func_map = {
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'': _empty_hwaddr_query,
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'bare': _bare_query,
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'bool': _bool_hwaddr_query,
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'cisco': _cisco_query,
|
||||
'eui48': _win_query,
|
||||
'linux': _linux_query,
|
||||
'pgsql': _postgresql_query,
|
||||
'postgresql': _postgresql_query,
|
||||
'psql': _postgresql_query,
|
||||
'unix': _unix_query,
|
||||
'win': _win_query,
|
||||
}
|
||||
|
||||
try:
|
||||
v = netaddr.EUI(value)
|
||||
except:
|
||||
if query and query not in [ 'bool' ]:
|
||||
if query and query != 'bool':
|
||||
raise errors.AnsibleFilterError(alias + ': not a hardware address: %s' % value)
|
||||
|
||||
if not query:
|
||||
if v:
|
||||
return value
|
||||
|
||||
elif query == 'bool':
|
||||
if v:
|
||||
return True
|
||||
|
||||
elif query in [ 'win', 'eui48' ]:
|
||||
v.dialect = netaddr.mac_eui48
|
||||
return str(v)
|
||||
|
||||
elif query == 'unix':
|
||||
v.dialect = netaddr.mac_unix
|
||||
return str(v)
|
||||
|
||||
elif query in [ 'pgsql', 'postgresql', 'psql' ]:
|
||||
v.dialect = netaddr.mac_pgsql
|
||||
return str(v)
|
||||
|
||||
elif query == 'cisco':
|
||||
v.dialect = netaddr.mac_cisco
|
||||
return str(v)
|
||||
|
||||
elif query == 'bare':
|
||||
v.dialect = netaddr.mac_bare
|
||||
return str(v)
|
||||
|
||||
elif query == 'linux':
|
||||
v.dialect = mac_linux
|
||||
return str(v)
|
||||
|
||||
else:
|
||||
extras = []
|
||||
for arg in query_func_extra_args.get(query, tuple()):
|
||||
extras.append(locals()[arg])
|
||||
try:
|
||||
return query_func_map[query](v, *extras)
|
||||
except KeyError:
|
||||
raise errors.AnsibleFilterError(alias + ': unknown filter type: %s' % query)
|
||||
|
||||
return False
|
||||
|
|
@ -508,7 +595,6 @@ def hwaddr(value, query = '', alias = 'hwaddr'):
|
|||
def macaddr(value, query = ''):
|
||||
return hwaddr(value, query, alias = 'macaddr')
|
||||
|
||||
|
||||
def _need_netaddr(*args, **kwargs):
|
||||
raise errors.AnsibleFilterError('python-netaddr package is not installed')
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue