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#!/usr/bin/python
"""Hostinfo queries the hostbase database according to user-defined data"""
from os import system, environ
environ['DJANGO_SETTINGS_MODULE'] = 'Hostbase.settings'
from getopt import gnu_getopt, GetoptError
from django.db import connection
import sys
logic_ops = ["and", "or"]
host_attribs = ["hostname", "whatami", "netgroup", "security_class",
"support", "csi", "memory", "printq", "dhcp", "outbound_smtp",
"primary_user", "administrator", "location",
"comments", "last", "expiration_date"]
dispatch = {'mac_addr': ' i.',
'hdwr_type': ' i.',
'ip_addr': ' p.',
'name': ' n.',
'dns_view': ' n.',
'cname': ' c.',
'mx': ' m.',
'priority': ' m.'}
def pinger(hosts):
"""Function that uses fping to ping multiple hosts in parallel"""
hostnames = ""
for each in hosts:
hostnames += each[0] + " "
system("fping -r 1" + hostnames)
sys.exit()
def get_query(arguments):
"""Parses the command line options and returns the necessary
data for an SQL query"""
logic = None
resultset = []
querystring = ''
while 1:
notflag = False
if arguments[0] == 'not':
notflag = True
querypos = 1
elif arguments[0] in logic_ops:
logic = arguments[0]
if arguments[1] == 'not':
notflag = True
querypos = 2
else:
querypos = 1
else:
querypos = 0
if len(arguments[querypos].split("==")) > 1:
operator = "="
if notflag:
operator = "<>"
querysplit = arguments[querypos].split("==")
if querysplit[0] in host_attribs:
querystring = " h.%s%s\'%s\'" % (querysplit[0],
operator,
querysplit[1])
elif querysplit[0] in dispatch:
querystring = dispatch[querysplit[0]]
querystring += "%s%s\'%s\'" % (querysplit[0],
operator,
querysplit[1])
elif len(arguments[querypos].split("=")) > 1:
notstring = ''
if notflag:
notstring = 'NOT '
querysplit = arguments[querypos].split("=")
if querysplit[0] in host_attribs:
querystring = " h.%s %sLIKE \'%%%%%s%%%%\'" % (querysplit[0],
notstring,
querysplit[1])
elif querysplit[0] in dispatch:
querystring = dispatch[querysplit[0]]
querystring += "%s %sLIKE \'%%%%%s%%%%\'" % (querysplit[0],
notstring,
querysplit[1])
else:
print("ERROR: bad query format")
sys.exit()
if not querystring:
print("ERROR: bad query format")
sys.exit()
resultset.append((querystring, logic))
arguments = arguments[querypos + 1:]
if arguments == [] or arguments[0] not in logic_ops:
break
return resultset
try:
(opts, args) = gnu_getopt(sys.argv[1:],
'q:', ['showfields', 'fields', 'ping', 'summary'])
cursor = connection.cursor()
if ('--showfields', '') in opts:
print("\nhost fields:\n")
for field in host_attribs:
print(field)
for field in dispatch:
print(field)
print("")
sys.exit()
if opts[0][0] == '-q':
results = get_query(sys.argv[2:])
queryoptions = ""
for result in results:
if result[1] == 'and':
queryoptions += " AND " + result[0]
elif result[1] == 'or':
queryoptions += " OR " + result[0]
else:
queryoptions += result[0]
if ('--summary', '') in opts:
fields = "h.hostname, h.whatami, h.location, h.primary_user"
query = """SELECT DISTINCT %s FROM (((((hostbase_host h
INNER JOIN hostbase_interface i ON h.id = i.host_id)
INNER JOIN hostbase_ip p ON i.id = p.interface_id)
INNER JOIN hostbase_name n ON p.id = n.ip_id)
INNER JOIN hostbase_name_mxs x ON x.name_id = n.id)
INNER JOIN hostbase_mx m ON m.id = x.mx_id)
LEFT JOIN hostbase_cname c ON n.id = c.name_id
WHERE %s ORDER BY h.hostname
""" % (fields, queryoptions)
cursor.execute(query)
results = cursor.fetchall()
if not results:
print("No matches were found for your query")
sys.exit()
print("\n%-32s %-10s %-10s %-10s" % ('Hostname', 'Type', 'Location', 'User'))
print("================================ ========== ========== ==========")
for host in results:
print("%-32s %-10s %-10s %-10s" % (host))
print("")
elif ('--fields', '') in opts:
tolook = [arg for arg in args if arg in host_attribs or arg in dispatch]
fields = ""
fields = ", ".join(tolook)
if not fields:
print("No valid fields were entered. exiting...")
sys.exit()
query = """SELECT DISTINCT %s FROM (((((hostbase_host h
INNER JOIN hostbase_interface i ON h.id = i.host_id)
INNER JOIN hostbase_ip p ON i.id = p.interface_id)
INNER JOIN hostbase_name n ON p.id = n.ip_id)
INNER JOIN hostbase_name_mxs x ON x.name_id = n.id)
INNER JOIN hostbase_mx m ON m.id = x.mx_id)
LEFT JOIN hostbase_cname c ON n.id = c.name_id
WHERE %s ORDER BY h.hostname
""" % (fields, queryoptions)
cursor.execute(query)
results = cursor.fetchall()
last = results[0]
for field in results[0]:
print(repr(field) + "\t")
for host in results:
if not host == last:
for field in host:
print(repr(field) + "\t")
last = host
print("")
else:
basequery = """SELECT DISTINCT h.hostname FROM (((((hostbase_host h
INNER JOIN hostbase_interface i ON h.id = i.host_id)
INNER JOIN hostbase_ip p ON i.id = p.interface_id)
INNER JOIN hostbase_name n ON p.id = n.ip_id)
INNER JOIN hostbase_name_mxs x ON x.name_id = n.id)
INNER JOIN hostbase_mx m ON m.id = x.mx_id)
LEFT JOIN hostbase_cname c ON n.id = c.name_id
WHERE
"""
cursor.execute(basequery + queryoptions + " ORDER BY h.hostname")
results = cursor.fetchall()
if not results:
print("No matches were found for your query")
sys.exit()
if ("--ping", '') in opts:
pinger(results)
for host in results:
print(host[0])
except (GetoptError, IndexError):
print("\nUsage: hostinfo.py -q <field>=[=]<value> [and/or <field>=<value> [--long option]]")
print(" hostinfo.py --showfields\tshows all data fields")
print("\n long options:")
print("\t --fields f1 f2 ...\tspecifies the fields displayed from the queried hosts")
print("\t --summary\t\tprints out a predetermined set of fields")
print("\t --ping\t\t\tuses fping to ping all queried hosts\n")
sys.exit()
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