diff options
Diffstat (limited to 'src')
| -rwxr-xr-x | src/perform_queries.py | 104 |
1 files changed, 82 insertions, 22 deletions
diff --git a/src/perform_queries.py b/src/perform_queries.py index e9c94ec..8262ef0 100755 --- a/src/perform_queries.py +++ b/src/perform_queries.py @@ -3,38 +3,98 @@ from sys import argv import unbound -def query_planned_queries(hour, vpn_id): - # TODO query database - # for now, return some sample thought-up data - return ( - # dns server IP | dns server id | service_id | service_name - ("195.98.79.117", 23, ((89, "devuan.org"), - (44, "gry.pl"), - (112, "invidio.us"))), - ("192.71.245.208", 33, ((77, "debian.org"), - (22, "nie.ma.takiej.domeny"), - (100, "onet.pl"))) - ) +# our own module used by several scripts in the project +from ztdns_db_connectivity import start_db_connection + +class dns_queries: + def __init__(self, dns_IP, dns_id, services): + self.dns_IP = dns_IP + self.dns_id = dns_id + self.services = services + +class single_query: + def __init__(self, cursor, vpn_id, dns_id, service_id): + self.cursor = cursor + self.vpn_id = vpn_id + self.dns_id = dns_id + self.service_id = service_id + +def query_planned_queries(cursor, hour, vpn_id): + # return [ + # # dns server IP | dns server id | service_id | service_name + # dns_queries("195.98.79.117", 23, [[89, "devuan.org"], + # [44, "gry.pl"], + # [112, "invidio.us"]]), + # dns_queries("192.71.245.208", 33, [[77, "debian.org"], + # [22, "nie.ma.takiej.domeny"], + # [100, "onet.pl"]]) + # ] + cursor.execute(''' + SELECT DISTINCT d.IP, d.dns_id + FROM user_side_queries AS q JOIN user_side_dns AS d + ON dns.id = q.dns_id + WHERE q.vpn_id = %s + ''', (vpn_id,)) + dnss = cursor.fetchall() + + dnss_to_query = [] + + for dns_IP, dns_id in dnss: + cursor.execute(''' + SELECT s.id, s.name + FROM user_side_services AS s JOIN user_side_queries AS q + ON s.id = q.service_id + WHERE q.vpn_id = %s AND q.dns_id = %s + ''', (vpn_id, dns_id)) + + queries = dns_queries(dns_IP, dns_id, cursor.fetchall()) + + dnss_to_query.append(queries) + + return dnss_to_query def resolve_call_back(mydata, status, result): - dns_id, service_id = mydata - # TODO write to database + query = mydata + # debugging print("callback called for {}".format(result.qname)) if status==0 and result.havedata: print("Result:",result.data.address_list) + # write to database + query.cursor.execute(''' + INSERT INTO user_side_responses (date, result, dns_id, service_id, vpn_id) + VALUES (current_timestamp, '', %s, %s, %s) + RETURNING id + ''', (query.dns_id, query.service_id, query.vpn_id)) + + responses_id = query.cursor.fetchone()[0] + + if status==0 and result.havedata: + for address in data.address_list: + query.cursor.execute(''' + INSERT INTO user_side_response (returned_ip, responses_id) + VALUES(%s, %s) + ''', (address, responses_id)) + # no committing, since auto-commit mode is set on the connection + +hour = argv[1] +vpn_id = argv[2] +connection = start_db_connection() +cursor = connection.cursor() contexts = [] -# hour from argv | vpn_id in database -for dns_addr, dns_id, services in query_planned_queries(argv[1], argv[2]): +for dns_query in query_planned_queries(cursor, hour, vpn_id): ctx = unbound.ub_ctx() - ctx.set_fwd(dns_addr) - for service_id, service_name in services: - print(service_name) - print("starting resolution: {} through {}".format(service_name, dns_addr)) - ctx.resolve_async(service_name, (dns_id, service_id), - resolve_call_back, + ctx.set_fwd(dns_IP) + for service_id, service_name in dns_query.services: + print("starting resolution of {} through {}".format(service_name, dns_IP)) + query = single_query(cursor, vpn_id, dns_query.dns_id, service_id) + + ctx.resolve_async(service_name, query, resolve_call_back, unbound.RR_TYPE_A, unbound.RR_CLASS_IN) contexts.append(ctx) for ctx in contexts: ctx.wait() + +cursor.close() +connection.close() |