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[networking] Add legacy_ssl request extension (#10448)

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Supported by Urllib, Requests and Websockets request handlers. Ignored by CurlCFFI.

Also added couple cookie-related tests.

Authored by: coletdjnz
This commit is contained in:
coletdjnz 2024-07-14 11:22:43 +12:00 committed by GitHub
parent 8b8b442cb0
commit 150ecc45d9
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7 changed files with 162 additions and 9 deletions
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81
test/test_networking.py
View file

@ -265,6 +265,11 @@ class HTTPTestRequestHandler(http.server.BaseHTTPRequestHandler):
self.end_headers()
self.wfile.write(payload)
self.finish()
elif self.path == '/get_cookie':
self.send_response(200)
self.send_header('Set-Cookie', 'test=ytdlp; path=/')
self.end_headers()
self.finish()
else:
self._status(404)
@ -338,6 +343,52 @@ class TestHTTPRequestHandler(TestRequestHandlerBase):
validate_and_send(rh, Request(f'https://127.0.0.1:{https_port}/headers'))
assert not issubclass(exc_info.type, CertificateVerifyError)
@pytest.mark.skip_handler('CurlCFFI', 'legacy_ssl ignored by CurlCFFI')
def test_legacy_ssl_extension(self, handler):
# HTTPS server with old ciphers
# XXX: is there a better way to test this than to create a new server?
https_httpd = http.server.ThreadingHTTPServer(
('127.0.0.1', 0), HTTPTestRequestHandler)
sslctx = ssl.SSLContext(ssl.PROTOCOL_TLS_SERVER)
sslctx.maximum_version = ssl.TLSVersion.TLSv1_2
sslctx.set_ciphers('SHA1:AESCCM:aDSS:eNULL:aNULL')
sslctx.load_cert_chain(os.path.join(TEST_DIR, 'testcert.pem'), None)
https_httpd.socket = sslctx.wrap_socket(https_httpd.socket, server_side=True)
https_port = http_server_port(https_httpd)
https_server_thread = threading.Thread(target=https_httpd.serve_forever)
https_server_thread.daemon = True
https_server_thread.start()
with handler(verify=False) as rh:
res = validate_and_send(rh, Request(f'https://127.0.0.1:{https_port}/headers', extensions={'legacy_ssl': True}))
assert res.status == 200
res.close()
# Ensure only applies to request extension
with pytest.raises(SSLError):
validate_and_send(rh, Request(f'https://127.0.0.1:{https_port}/headers'))
@pytest.mark.skip_handler('CurlCFFI', 'legacy_ssl ignored by CurlCFFI')
def test_legacy_ssl_support(self, handler):
# HTTPS server with old ciphers
# XXX: is there a better way to test this than to create a new server?
https_httpd = http.server.ThreadingHTTPServer(
('127.0.0.1', 0), HTTPTestRequestHandler)
sslctx = ssl.SSLContext(ssl.PROTOCOL_TLS_SERVER)
sslctx.maximum_version = ssl.TLSVersion.TLSv1_2
sslctx.set_ciphers('SHA1:AESCCM:aDSS:eNULL:aNULL')
sslctx.load_cert_chain(os.path.join(TEST_DIR, 'testcert.pem'), None)
https_httpd.socket = sslctx.wrap_socket(https_httpd.socket, server_side=True)
https_port = http_server_port(https_httpd)
https_server_thread = threading.Thread(target=https_httpd.serve_forever)
https_server_thread.daemon = True
https_server_thread.start()
with handler(verify=False, legacy_ssl_support=True) as rh:
res = validate_and_send(rh, Request(f'https://127.0.0.1:{https_port}/headers'))
assert res.status == 200
res.close()
def test_percent_encode(self, handler):
with handler() as rh:
# Unicode characters should be encoded with uppercase percent-encoding
@ -490,6 +541,24 @@ class TestHTTPRequestHandler(TestRequestHandlerBase):
rh, Request(f'http://127.0.0.1:{self.http_port}/headers', extensions={'cookiejar': cookiejar})).read()
assert b'cookie: test=ytdlp' in data.lower()
def test_cookie_sync_only_cookiejar(self, handler):
# Ensure that cookies are ONLY being handled by the cookiejar
with handler() as rh:
validate_and_send(rh, Request(f'http://127.0.0.1:{self.http_port}/get_cookie', extensions={'cookiejar': YoutubeDLCookieJar()}))
data = validate_and_send(rh, Request(f'http://127.0.0.1:{self.http_port}/headers', extensions={'cookiejar': YoutubeDLCookieJar()})).read()
assert b'cookie: test=ytdlp' not in data.lower()
def test_cookie_sync_delete_cookie(self, handler):
# Ensure that cookies are ONLY being handled by the cookiejar
cookiejar = YoutubeDLCookieJar()
with handler(cookiejar=cookiejar) as rh:
validate_and_send(rh, Request(f'http://127.0.0.1:{self.http_port}/get_cookie'))
data = validate_and_send(rh, Request(f'http://127.0.0.1:{self.http_port}/headers')).read()
assert b'cookie: test=ytdlp' in data.lower()
cookiejar.clear_session_cookies()
data = validate_and_send(rh, Request(f'http://127.0.0.1:{self.http_port}/headers')).read()
assert b'cookie: test=ytdlp' not in data.lower()
def test_headers(self, handler):
with handler(headers=HTTPHeaderDict({'test1': 'test', 'test2': 'test2'})) as rh:
@ -1199,6 +1268,9 @@ class TestRequestHandlerValidation:
({'timeout': 1}, False),
({'timeout': 'notatimeout'}, AssertionError),
({'unsupported': 'value'}, UnsupportedRequest),
({'legacy_ssl': False}, False),
({'legacy_ssl': True}, False),
({'legacy_ssl': 'notabool'}, AssertionError),
]),
('Requests', 'http', [
({'cookiejar': 'notacookiejar'}, AssertionError),
@ -1206,6 +1278,9 @@ class TestRequestHandlerValidation:
({'timeout': 1}, False),
({'timeout': 'notatimeout'}, AssertionError),
({'unsupported': 'value'}, UnsupportedRequest),
({'legacy_ssl': False}, False),
({'legacy_ssl': True}, False),
({'legacy_ssl': 'notabool'}, AssertionError),
]),
('CurlCFFI', 'http', [
({'cookiejar': 'notacookiejar'}, AssertionError),
@ -1219,6 +1294,9 @@ class TestRequestHandlerValidation:
({'impersonate': ImpersonateTarget(None, None, None, None)}, False),
({'impersonate': ImpersonateTarget()}, False),
({'impersonate': 'chrome'}, AssertionError),
({'legacy_ssl': False}, False),
({'legacy_ssl': True}, False),
({'legacy_ssl': 'notabool'}, AssertionError),
]),
(NoCheckRH, 'http', [
({'cookiejar': 'notacookiejar'}, False),
@ -1227,6 +1305,9 @@ class TestRequestHandlerValidation:
('Websockets', 'ws', [
({'cookiejar': YoutubeDLCookieJar()}, False),
({'timeout': 2}, False),
({'legacy_ssl': False}, False),
({'legacy_ssl': True}, False),
({'legacy_ssl': 'notabool'}, AssertionError),
]),
]

58
test/test_websockets.py
View file

@ -61,6 +61,10 @@ def process_request(self, request):
return websockets.http11.Response(
status.value, status.phrase, websockets.datastructures.Headers([('Location', '/')]), b'')
return self.protocol.reject(status.value, status.phrase)
elif request.path.startswith('/get_cookie'):
response = self.protocol.accept(request)
response.headers['Set-Cookie'] = 'test=ytdlp'
return response
return self.protocol.accept(request)
@ -102,6 +106,15 @@ def create_mtls_wss_websocket_server():
return create_websocket_server(ssl_context=sslctx)
def create_legacy_wss_websocket_server():
certfn = os.path.join(TEST_DIR, 'testcert.pem')
sslctx = ssl.SSLContext(ssl.PROTOCOL_TLS_SERVER)
sslctx.maximum_version = ssl.TLSVersion.TLSv1_2
sslctx.set_ciphers('SHA1:AESCCM:aDSS:eNULL:aNULL')
sslctx.load_cert_chain(certfn, None)
return create_websocket_server(ssl_context=sslctx)
def ws_validate_and_send(rh, req):
rh.validate(req)
max_tries = 3
@ -132,6 +145,9 @@ class TestWebsSocketRequestHandlerConformance:
cls.mtls_wss_thread, cls.mtls_wss_port = create_mtls_wss_websocket_server()
cls.mtls_wss_base_url = f'wss://127.0.0.1:{cls.mtls_wss_port}'
cls.legacy_wss_thread, cls.legacy_wss_port = create_legacy_wss_websocket_server()
cls.legacy_wss_host = f'wss://127.0.0.1:{cls.legacy_wss_port}'
def test_basic_websockets(self, handler):
with handler() as rh:
ws = ws_validate_and_send(rh, Request(self.ws_base_url))
@ -166,6 +182,22 @@ class TestWebsSocketRequestHandlerConformance:
ws_validate_and_send(rh, Request(self.bad_wss_host))
assert not issubclass(exc_info.type, CertificateVerifyError)
def test_legacy_ssl_extension(self, handler):
with handler(verify=False) as rh:
ws = ws_validate_and_send(rh, Request(self.legacy_wss_host, extensions={'legacy_ssl': True}))
assert ws.status == 101
ws.close()
# Ensure only applies to request extension
with pytest.raises(SSLError):
ws_validate_and_send(rh, Request(self.legacy_wss_host))
def test_legacy_ssl_support(self, handler):
with handler(verify=False, legacy_ssl_support=True) as rh:
ws = ws_validate_and_send(rh, Request(self.legacy_wss_host))
assert ws.status == 101
ws.close()
@pytest.mark.parametrize('path,expected', [
# Unicode characters should be encoded with uppercase percent-encoding
('/中文', '/%E4%B8%AD%E6%96%87'),
@ -248,6 +280,32 @@ class TestWebsSocketRequestHandlerConformance:
assert json.loads(ws.recv())['cookie'] == 'test=ytdlp'
ws.close()
@pytest.mark.skip_handler('Websockets', 'Set-Cookie not supported by websockets')
def test_cookie_sync_only_cookiejar(self, handler):
# Ensure that cookies are ONLY being handled by the cookiejar
with handler() as rh:
ws_validate_and_send(rh, Request(f'{self.ws_base_url}/get_cookie', extensions={'cookiejar': YoutubeDLCookieJar()}))
ws = ws_validate_and_send(rh, Request(self.ws_base_url, extensions={'cookiejar': YoutubeDLCookieJar()}))
ws.send('headers')
assert 'cookie' not in json.loads(ws.recv())
ws.close()
@pytest.mark.skip_handler('Websockets', 'Set-Cookie not supported by websockets')
def test_cookie_sync_delete_cookie(self, handler):
# Ensure that cookies are ONLY being handled by the cookiejar
cookiejar = YoutubeDLCookieJar()
with handler(verbose=True, cookiejar=cookiejar) as rh:
ws_validate_and_send(rh, Request(f'{self.ws_base_url}/get_cookie'))
ws = ws_validate_and_send(rh, Request(self.ws_base_url))
ws.send('headers')
assert json.loads(ws.recv())['cookie'] == 'test=ytdlp'
ws.close()
cookiejar.clear_session_cookies()
ws = ws_validate_and_send(rh, Request(self.ws_base_url))
ws.send('headers')
assert 'cookie' not in json.loads(ws.recv())
ws.close()
def test_source_address(self, handler):
source_address = f'127.0.0.{random.randint(5, 255)}'
verify_address_availability(source_address)

3
yt_dlp/networking/_curlcffi.py
View file

@ -146,6 +146,9 @@ class CurlCFFIRH(ImpersonateRequestHandler, InstanceStoreMixin):
extensions.pop('impersonate', None)
extensions.pop('cookiejar', None)
extensions.pop('timeout', None)
# CurlCFFIRH ignores legacy ssl options currently.
# Impersonation generally uses a looser SSL configuration than urllib/requests.
extensions.pop('legacy_ssl', None)
def send(self, request: Request) -> Response:
target = self._get_request_target(request)

10
yt_dlp/networking/_requests.py
View file

@ -295,11 +295,12 @@ class RequestsRH(RequestHandler, InstanceStoreMixin):
super()._check_extensions(extensions)
extensions.pop('cookiejar', None)
extensions.pop('timeout', None)
extensions.pop('legacy_ssl', None)
def _create_instance(self, cookiejar):
def _create_instance(self, cookiejar, legacy_ssl_support=None):
session = RequestsSession()
http_adapter = RequestsHTTPAdapter(
ssl_context=self._make_sslcontext(),
ssl_context=self._make_sslcontext(legacy_ssl_support=legacy_ssl_support),
source_address=self.source_address,
max_retries=urllib3.util.retry.Retry(False),
)
@ -318,7 +319,10 @@ class RequestsRH(RequestHandler, InstanceStoreMixin):
max_redirects_exceeded = False
session = self._get_instance(cookiejar=self._get_cookiejar(request))
session = self._get_instance(
cookiejar=self._get_cookiejar(request),
legacy_ssl_support=request.extensions.get('legacy_ssl'),
)
try:
requests_res = session.request(

6
yt_dlp/networking/_urllib.py
View file

@ -348,14 +348,15 @@ class UrllibRH(RequestHandler, InstanceStoreMixin):
super()._check_extensions(extensions)
extensions.pop('cookiejar', None)
extensions.pop('timeout', None)
extensions.pop('legacy_ssl', None)
def _create_instance(self, proxies, cookiejar):
def _create_instance(self, proxies, cookiejar, legacy_ssl_support=None):
opener = urllib.request.OpenerDirector()
handlers = [
ProxyHandler(proxies),
HTTPHandler(
debuglevel=int(bool(self.verbose)),
context=self._make_sslcontext(),
context=self._make_sslcontext(legacy_ssl_support=legacy_ssl_support),
source_address=self.source_address),
HTTPCookieProcessor(cookiejar),
DataHandler(),
@ -391,6 +392,7 @@ class UrllibRH(RequestHandler, InstanceStoreMixin):
opener = self._get_instance(
proxies=self._get_proxies(request),
cookiejar=self._get_cookiejar(request),
legacy_ssl_support=request.extensions.get('legacy_ssl'),
)
try:
res = opener.open(urllib_req, timeout=self._calculate_timeout(request))

4
yt_dlp/networking/_websockets.py
View file

@ -118,6 +118,7 @@ class WebsocketsRH(WebSocketRequestHandler):
super()._check_extensions(extensions)
extensions.pop('timeout', None)
extensions.pop('cookiejar', None)
extensions.pop('legacy_ssl', None)
def close(self):
# Remove the logging handler that contains a reference to our logger
@ -154,13 +155,14 @@ class WebsocketsRH(WebSocketRequestHandler):
address=(wsuri.host, wsuri.port),
**create_conn_kwargs,
)
ssl_ctx = self._make_sslcontext(legacy_ssl_support=request.extensions.get('legacy_ssl'))
conn = websockets.sync.client.connect(
sock=sock,
uri=request.url,
additional_headers=headers,
open_timeout=timeout,
user_agent_header=None,
ssl_context=self._make_sslcontext() if wsuri.secure else None,
ssl_context=ssl_ctx if wsuri.secure else None,
close_timeout=0, # not ideal, but prevents yt-dlp hanging
)
return WebsocketsResponseAdapter(conn, url=request.url)

9
yt_dlp/networking/common.py
View file

@ -205,6 +205,7 @@ class RequestHandler(abc.ABC):
The following extensions are defined for RequestHandler:
- `cookiejar`: Cookiejar to use for this request.
- `timeout`: socket timeout to use for this request.
- `legacy_ssl`: Enable legacy SSL options for this request. See legacy_ssl_support.
To enable these, add extensions.pop('<extension>', None) to _check_extensions
Apart from the url protocol, proxies dict may contain the following keys:
@ -247,10 +248,10 @@ class RequestHandler(abc.ABC):
self.legacy_ssl_support = legacy_ssl_support
super().__init__()
def _make_sslcontext(self):
def _make_sslcontext(self, legacy_ssl_support=None):
return make_ssl_context(
verify=self.verify,
legacy_support=self.legacy_ssl_support,
legacy_support=legacy_ssl_support if legacy_ssl_support is not None else self.legacy_ssl_support,
use_certifi=not self.prefer_system_certs,
**self._client_cert,
)
@ -262,7 +263,8 @@ class RequestHandler(abc.ABC):
return float(request.extensions.get('timeout') or self.timeout)
def _get_cookiejar(self, request):
return request.extensions.get('cookiejar') or self.cookiejar
cookiejar = request.extensions.get('cookiejar')
return self.cookiejar if cookiejar is None else cookiejar
def _get_proxies(self, request):
return (request.proxies or self.proxies).copy()
@ -314,6 +316,7 @@ class RequestHandler(abc.ABC):
"""Check extensions for unsupported extensions. Subclasses should extend this."""
assert isinstance(extensions.get('cookiejar'), (YoutubeDLCookieJar, NoneType))
assert isinstance(extensions.get('timeout'), (float, int, NoneType))
assert isinstance(extensions.get('legacy_ssl'), (bool, NoneType))
def _validate(self, request):
self._check_url_scheme(request)