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111 lines
3.5 KiB
111 lines
3.5 KiB
#!/usr/bin/python |
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import os |
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import sys |
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import argparse |
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import datetime |
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import configobj |
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import socket |
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import time |
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# parse command line options |
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parser = argparse.ArgumentParser( |
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description='Hosts checker for py-i2phosts.', |
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epilog='Report bugs to https://github.com/i2phosts/py-i2phosts/issues') |
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parser.add_argument('-d', '--debug', action='store_true', |
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help='set loglevel to debug and write messages to stdout'), |
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parser.add_argument('-v', '--verbose', action='store_true', |
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help='set loglevel to info and write messages to stdout'), |
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parser.add_argument('-c', '--config', default='/etc/py-i2phosts/checker.conf', dest='config_file', |
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help='config file to use') |
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args = parser.parse_args() |
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# read config |
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spec = ''' |
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log_file = string(default='/var/log/py-i2phosts/master.log') |
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log_level = option('debug', 'info', 'warning', 'error', 'critical', default='info') |
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lookup_retries = integer(1, 20, default=2) |
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''' |
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spec = spec.split('\n') |
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config = configobj.ConfigObj(args.config_file, configspec=spec) |
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if 'include' in config: |
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config_included = configobj.ConfigObj(config['include']) |
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config.merge(config_included) |
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# django setup |
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DJANGO_SETTINGS_MODULE = 'pyi2phosts.settings' |
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if 'DJANGO_PROJECT_PATH' in config: |
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DJANGO_PROJECT_PATH = config['DJANGO_PROJECT_PATH'] |
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else: |
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DJANGO_PROJECT_PATH = os.path.dirname(sys.argv[0]) + '/..' |
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sys.path.insert(1, DJANGO_PROJECT_PATH) |
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os.environ['DJANGO_SETTINGS_MODULE'] = DJANGO_SETTINGS_MODULE |
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import django |
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django.setup() |
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from pyi2phosts.postkey.models import i2phost |
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from pyi2phosts.lib.utils import get_logger |
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from pyi2phosts.lib.utils import validate_config |
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from pyi2phosts.lib.utils import get_b32 |
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# validate config |
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validate_config(config) |
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# configure logger |
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if args.debug == True: |
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log_level = 'debug' |
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log_file = None |
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elif args.verbose == True: |
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log_level = 'info' |
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log_file = None |
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else: |
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log_level = config['log_level'] |
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log_file = config['log_file'] |
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log = get_logger(filename=log_file, log_level=log_level) |
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# determine BOB interface address |
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if 'bob_addr' in config: |
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bob_addr = config['bob_addr'] |
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else: |
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log.warning('BOB address isn\'t specified in config, falling back to localhost') |
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bob_addr = '127.0.0.1:2827' |
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# split bob_addr to ip and port |
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bob_ip, bob_port = bob_addr.split(':') |
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# connect to BOB |
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s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) |
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try: |
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s.connect((bob_ip, int(bob_port))) |
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# just receive BOB's greeting |
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time.sleep(1) |
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data = s.recv(512) |
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# make file object |
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f = s.makefile('r') |
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except socket.error, e: |
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log.error('failed to connect to BOB: %s', e) |
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sys.exit(1) |
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all_hosts = i2phost.objects.all().order_by('-activated', '-last_seen') |
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log.info('starting check') |
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for host in all_hosts: |
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log.debug('%s: testing...', host.name) |
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# get b32 address from full dest key |
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dest = host.b64hash |
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b32dest = get_b32(dest) |
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# do name lookup query with b32 address |
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# it success only if host is alive |
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for i in range(config['lookup_retries']): |
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s.send('lookup %s\n' % b32dest) |
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data = f.readline().rstrip('\n') |
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if data == 'ERROR Address Not found.': |
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log.debug('%s: unable to resolve, try: %s', host.name, i) |
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elif data == 'OK ' + host.b64hash: |
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log.info('alive host: %s', host.name) |
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# update lastseen timestamp |
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host.last_seen = datetime.datetime.utcnow() |
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host.save() |
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break |
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else: |
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log.warning('unexpected reply: %s', data) |
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s.close() |
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log.info('check finished')
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