Michal Charemza
6 years ago
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1 changed files with 7 additions and 0 deletions
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+7 -0dnsrewriteproxy.py
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dnsrewriteproxy.py
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| @@ -120,21 +120,28 @@ def DnsProxy( | |||||
| name_bytes = query.qd[0].name | name_bytes = query.qd[0].name | ||||
| name_str_lower = query.qd[0].name.lower().decode('idna') | name_str_lower = query.qd[0].name.lower().decode('idna') | ||||
| logger.info('%s: decoded to %s', name_bytes, name_str_lower) | |||||
| for pattern, replace in rules: | for pattern, replace in rules: | ||||
| rewritten_name_str, num_matches = re.subn(pattern, replace, name_str_lower) | rewritten_name_str, num_matches = re.subn(pattern, replace, name_str_lower) | ||||
| if num_matches: | if num_matches: | ||||
| break | break | ||||
| else: | else: | ||||
| # No break was triggered, i.e. no match | # No break was triggered, i.e. no match | ||||
| logger.info('%s: does not match a rule', name_str_lower) | |||||
| return error(query, ERRORS.REFUSED) | return error(query, ERRORS.REFUSED) | ||||
| try: | try: | ||||
| ip_addresses = await resolve(rewritten_name_str, TYPES.A) | ip_addresses = await resolve(rewritten_name_str, TYPES.A) | ||||
| except DnsRecordDoesNotExist: | except DnsRecordDoesNotExist: | ||||
| logger.info('%s: does not exist', name_str_lower) | |||||
| return error(query, ERRORS.NXDOMAIN) | return error(query, ERRORS.NXDOMAIN) | ||||
| except DnsResponseCode as dns_response_code_error: | except DnsResponseCode as dns_response_code_error: | ||||
| logger.info('%s: received error frum upstream %s', | |||||
| name_str_lower, dns_response_code_error.args[0]) | |||||
| return error(query, dns_response_code_error.args[0]) | return error(query, dns_response_code_error.args[0]) | ||||
| logger.info('%s: resolved to %s', name_str_lower, ip_addresses) | |||||
| now = loop.time() | now = loop.time() | ||||
| def ttl(ip_address): | def ttl(ip_address): | ||||