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pytest: check overlarge response headers

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Add test_01 11, 12 and 13 to check various very long response
headers (accumulated and single) with http/1.1 and h2.

Closes #16541
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Stefan Eissing 2025-03-03 12:14:20 +01:00 • committed by Daniel Stenberg
parent cee9cefa76
commit 35cfb081d2
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2 changed files with 87 additions and 2 deletions
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56
tests/http/test_01_basic.py
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@ -37,9 +37,11 @@ log = logging.getLogger(__name__)
class TestBasic:
@pytest.fixture(autouse=True, scope='class')
def _class_scope(self, env, nghttpx):
def _class_scope(self, env, httpd, nghttpx):
if env.have_h3():
nghttpx.start_if_needed()
httpd.clear_extra_configs()
httpd.reload()
# simple http: GET
def test_01_01_http_get(self, env: Env, httpd):
@ -149,3 +151,55 @@ class TestBasic:
assert len(r.responses) == 1, f'{r.responses}'
assert r.responses[0]['status'] == 200, f'{r.responses[1]}'
assert r.responses[0]['protocol'] == 'HTTP/2', f'{r.responses[1]}'
# http: large response headers
# send 48KB+ sized response headers to check we handle that correctly
# larger than 64KB headers expose a bug in Apache HTTP/2 that is not
# RSTing the stream correclty when its internal limits are exceeded.
@pytest.mark.parametrize("proto", ['http/1.1', 'h2', 'h3'])
def test_01_11_large_resp_headers(self, env: Env, httpd, proto):
if proto == 'h3' and not env.have_h3():
pytest.skip("h3 not supported")
curl = CurlClient(env=env)
url = f'https://{env.authority_for(env.domain1, proto)}' \
f'/curltest/tweak?x-hd={48 * 1024}'
r = curl.http_get(url=url, alpn_proto=proto, extra_args=[])
r.check_exit_code(0)
assert len(r.responses) == 1, f'{r.responses}'
assert r.responses[0]['status'] == 200, f'{r.responses}'
# http: response headers larger than what curl buffers for
@pytest.mark.skipif(condition=not Env.httpd_is_at_least('2.4.64'),
reason='httpd must be at least 2.4.64')
@pytest.mark.parametrize("proto", ['http/1.1', 'h2'])
def test_01_12_xlarge_resp_headers(self, env: Env, httpd, proto):
httpd.set_extra_config('base', [
f'H2MaxHeaderBlockLen {130 * 1024}',
])
httpd.reload()
curl = CurlClient(env=env)
url = f'https://{env.authority_for(env.domain1, proto)}' \
f'/curltest/tweak?x-hd={128 * 1024}'
r = curl.http_get(url=url, alpn_proto=proto, extra_args=[])
r.check_exit_code(0)
assert len(r.responses) == 1, f'{r.responses}'
assert r.responses[0]['status'] == 200, f'{r.responses}'
# http: 1 response header larger than what curl buffers for
@pytest.mark.skipif(condition=not Env.httpd_is_at_least('2.4.64'),
reason='httpd must be at least 2.4.64')
@pytest.mark.parametrize("proto", ['http/1.1', 'h2'])
def test_01_13_megalarge_resp_headers(self, env: Env, httpd, proto):
httpd.set_extra_config('base', [
'LogLevel http2:trace2',
f'H2MaxHeaderBlockLen {130 * 1024}',
])
httpd.reload()
curl = CurlClient(env=env)
url = f'https://{env.authority_for(env.domain1, proto)}' \
f'/curltest/tweak?x-hd1={128 * 1024}'
r = curl.http_get(url=url, alpn_proto=proto, extra_args=[])
if proto == 'h2':
r.check_exit_code(16) # CURLE_HTTP2
else:
r.check_exit_code(100) # CURLE_TOO_LARGE