unbound/testdata/pylib.tdir/pylib.lookup.py
2022-01-30 00:51:39 +01:00

110 lines
2.8 KiB
Python
Executable File

#!/usr/bin/env python
#
# Test for pyunbound lookup.
# BSD licensed.
#
import sys
import time
import unbound
qname = "www.example.com"
qname2 = "www2.example.com"
qtype = unbound.RR_TYPE_A
qclass = unbound.RR_CLASS_IN
def create_context(config_file="ub.lookup.conf", asyncflag=False):
"""
Create an unbound context to use for testing.
"""
ctx = unbound.ub_ctx()
status = ctx.config(config_file)
if status != 0:
print("read config failed with status: {}".format(status))
sys.exit(1)
ctx.set_async(asyncflag)
return ctx
def callback(data, status, result):
"""
Callback for background workers.
"""
if status == 0:
data['rcode'] = result.rcode
data['secure'] = result.secure
if result.havedata:
data['data'] = result.data
data['was_ratelimited'] = result.was_ratelimited
data['done'] = True
def test_resolve(ctx):
"""
Test resolving a domain with a foreground worker.
"""
status, result = ctx.resolve(qname, qtype, qclass)
if status == 0 and result.havedata:
print("Resolve: {}".format(result.data.address_list))
else:
print("Failed resolve with: {}".format(status))
def test_async_resolve(ctx):
"""
Test resolving a domain with a background worker.
"""
cb_data = dict(done=False)
retval, async_id = ctx.resolve_async(qname, cb_data, callback, qtype, qclass)
while retval == 0 and not cb_data['done']:
time.sleep(0.1)
retval = ctx.process()
if cb_data.get('data'):
print("Async resolve: {}".format(cb_data['data'].address_list))
else:
print("Failed async resolve with: {}".format(retval))
def test_ratelimit_bg_on(ctx):
"""
Test resolving a ratelimited domain with a background worker.
"""
ctx.set_option("ratelimit:", "1")
ctx.set_option("ratelimit-factor:", "0")
total_runs = 6
success_threshold = 4 # 2/3*total_runs
successes = 0
for i in range(total_runs):
cb_data = dict(done=False)
cb_data2 = dict(done=False)
retval, async_id = ctx.resolve_async(qname, cb_data, callback, qtype, qclass)
retval, async_id = ctx.resolve_async(qname2, cb_data2, callback, qtype, qclass)
while retval == 0 and not (cb_data['done'] and cb_data['done']):
time.sleep(0.1)
retval = ctx.process()
if bool(cb_data.get('was_ratelimited')) ^ bool(cb_data2.get('was_ratelimited')):
successes += 1
if successes >= success_threshold:
break
time.sleep(1)
if successes >= success_threshold:
print("Ratelimit-bg-on: pass")
else:
print("Failed ratelimit-bg-on")
test_resolve(create_context())
test_async_resolve(create_context(asyncflag=True))
test_ratelimit_bg_on(create_context(asyncflag=True))
sys.exit(0)