r4sas/py-i2phosts
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py-i2phosts-checker: implement multiple lookup tries

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Many hosts are not resolved with first lookup b32->b64, but if we query
2nd time, host can be resolved. Because of this, some registered hosts
may be never seen while they actually up!
This commit is contained in:
Hidden Z 2013-10-10 17:22:01 +00:00
parent b18b3af1bf
commit ca831b2d45
2 changed files with 16 additions and 12 deletions
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26
bin/py-i2phosts-checker
View File

@ -24,6 +24,7 @@ args = parser.parse_args()
spec = ''' spec = '''
log_file = string(default='/var/log/py-i2phosts/master.log') log_file = string(default='/var/log/py-i2phosts/master.log')
log_level = option('debug', 'info', 'warning', 'error', 'critical', default='info') log_level = option('debug', 'info', 'warning', 'error', 'critical', default='info')
lookup_retries = integer(1, 20, default=2)
''' '''
spec = spec.split('\n') spec = spec.split('\n')
config = configobj.ConfigObj(args.config_file, configspec=spec) config = configobj.ConfigObj(args.config_file, configspec=spec)
@ -91,17 +92,18 @@ for host in all_hosts:
b32dest = get_b32(dest) b32dest = get_b32(dest)
# do name lookup query with b32 address # do name lookup query with b32 address
# it success only if host is alive # it success only if host is alive
s.send('lookup %s\n' % b32dest) for i in range(config['lookup_retries']):
data = f.readline().rstrip('\n') s.send('lookup %s\n' % b32dest)
if data == 'ERROR Address Not found.': data = f.readline().rstrip('\n')
log.debug('%s: unable to resolve', host.name) if data == 'ERROR Address Not found.':
continue log.debug('%s: unable to resolve, try: %s', host.name, i)
elif data == 'OK ' + host.b64hash: elif data == 'OK ' + host.b64hash:
log.info('alive host: %s', host.name) log.info('alive host: %s', host.name)
# update lastseen timestamp # update lastseen timestamp
host.last_seen = datetime.datetime.utcnow() host.last_seen = datetime.datetime.utcnow()
host.save() host.save()
else: break
log.warning('unexpected reply: %s', data) else:
log.warning('unexpected reply: %s', data)
s.close() s.close()
log.info('check finished') log.info('check finished')

2
conf/checker.conf
View File

@ -4,3 +4,5 @@ log_level = info # debug, info, warning, error, critical
log_file = /var/log/py-i2phosts/checker.log log_file = /var/log/py-i2phosts/checker.log
bob_addr = 127.0.0.1:2827 bob_addr = 127.0.0.1:2827
lookup_retries = 2