[webvtt] Don't parse single fragment files (#9034)

Partially addresses #5804
Authored by: seproDev

test/test_networking_utils.py

@@ -8,13 +8,9 @@ import pytest
 
 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 
-import contextlib
 import io
-import platform
 import random
 import ssl
-import urllib.error
-import warnings
 
 from yt_dlp.cookies import YoutubeDLCookieJar
 from yt_dlp.dependencies import certifi
@@ -30,7 +26,6 @@ from yt_dlp.networking._helper import (
 from yt_dlp.networking.exceptions import (
     HTTPError,
     IncompleteRead,
-    _CompatHTTPError,
 )
 from yt_dlp.socks import ProxyType
 from yt_dlp.utils.networking import HTTPHeaderDict
@@ -179,11 +174,10 @@ class TestNetworkingExceptions:
     def create_response(status):
         return Response(fp=io.BytesIO(b'test'), url='http://example.com', headers={'tesT': 'test'}, status=status)
 
-    @pytest.mark.parametrize('http_error_class', [HTTPError, lambda r: _CompatHTTPError(HTTPError(r))])
-    def test_http_error(self, http_error_class):
+    def test_http_error(self):
 
         response = self.create_response(403)
-        error = http_error_class(response)
+        error = HTTPError(response)
 
         assert error.status == 403
         assert str(error) == error.msg == 'HTTP Error 403: Forbidden'
@@ -194,80 +188,12 @@ class TestNetworkingExceptions:
         assert data == b'test'
         assert repr(error) == '<HTTPError 403: Forbidden>'
 
-    @pytest.mark.parametrize('http_error_class', [HTTPError, lambda *args, **kwargs: _CompatHTTPError(HTTPError(*args, **kwargs))])
-    def test_redirect_http_error(self, http_error_class):
+    def test_redirect_http_error(self):
         response = self.create_response(301)
-        error = http_error_class(response, redirect_loop=True)
+        error = HTTPError(response, redirect_loop=True)
         assert str(error) == error.msg == 'HTTP Error 301: Moved Permanently (redirect loop detected)'
         assert error.reason == 'Moved Permanently'
 
-    def test_compat_http_error(self):
-        response = self.create_response(403)
-        error = _CompatHTTPError(HTTPError(response))
-        assert isinstance(error, HTTPError)
-        assert isinstance(error, urllib.error.HTTPError)
-
-        @contextlib.contextmanager
-        def raises_deprecation_warning():
-            with warnings.catch_warnings(record=True) as w:
-                warnings.simplefilter('always')
-                yield
-
-                if len(w) == 0:
-                    pytest.fail('Did not raise DeprecationWarning')
-                if len(w) > 1:
-                    pytest.fail(f'Raised multiple warnings: {w}')
-
-                if not issubclass(w[-1].category, DeprecationWarning):
-                    pytest.fail(f'Expected DeprecationWarning, got {w[-1].category}')
-                w.clear()
-
-        with raises_deprecation_warning():
-            assert error.code == 403
-
-        with raises_deprecation_warning():
-            assert error.getcode() == 403
-
-        with raises_deprecation_warning():
-            assert error.hdrs is error.response.headers
-
-        with raises_deprecation_warning():
-            assert error.info() is error.response.headers
-
-        with raises_deprecation_warning():
-            assert error.headers is error.response.headers
-
-        with raises_deprecation_warning():
-            assert error.filename == error.response.url
-
-        with raises_deprecation_warning():
-            assert error.url == error.response.url
-
-        with raises_deprecation_warning():
-            assert error.geturl() == error.response.url
-
-        # Passthrough file operations
-        with raises_deprecation_warning():
-            assert error.read() == b'test'
-
-        with raises_deprecation_warning():
-            assert not error.closed
-
-        with raises_deprecation_warning():
-            # Technically Response operations are also passed through, which should not be used.
-            assert error.get_header('test') == 'test'
-
-        # Should not raise a warning
-        error.close()
-
-    @pytest.mark.skipif(
-        platform.python_implementation() == 'PyPy', reason='garbage collector works differently in pypy')
-    def test_compat_http_error_autoclose(self):
-        # Compat HTTPError should not autoclose response
-        response = self.create_response(403)
-        _CompatHTTPError(HTTPError(response))
-        assert not response.closed
-
     def test_incomplete_read_error(self):
         error = IncompleteRead(4, 3, cause='test')
         assert isinstance(error, IncompleteRead)

yt_dlp/YoutubeDL.py

@@ -40,7 +40,6 @@ from .networking.exceptions import (
     NoSupportingHandlers,
     RequestError,
     SSLError,
-    _CompatHTTPError,
     network_exceptions,
 )
 from .plugins import directories as plugin_directories
@@ -4110,8 +4109,6 @@ class YoutubeDL:
                     'SSLV3_ALERT_HANDSHAKE_FAILURE: The server may not support the current cipher list. '
                     'Try using --legacy-server-connect', cause=e) from e
             raise
-        except HTTPError as e:  # TODO: Remove in a future release
-            raise _CompatHTTPError(e) from e
 
     def build_request_director(self, handlers, preferences=None):
         logger = _YDLLogger(self)

yt_dlp/compat/_legacy.py

@@ -35,6 +35,7 @@ from .compat_utils import passthrough_module
 from ..dependencies import brotli as compat_brotli  # noqa: F401
 from ..dependencies import websockets as compat_websockets  # noqa: F401
 from ..dependencies.Cryptodome import AES as compat_pycrypto_AES  # noqa: F401
+from ..networking.exceptions import HTTPError as compat_HTTPError  # noqa: F401
 
 passthrough_module(__name__, '...utils', ('WINDOWS_VT_MODE', 'windows_enable_vt_mode'))
 
@@ -70,7 +71,6 @@ compat_html_parser_HTMLParseError = compat_HTMLParseError
 compat_HTMLParser = compat_html_parser_HTMLParser = html.parser.HTMLParser
 compat_http_client = http.client
 compat_http_server = http.server
-compat_HTTPError = urllib.error.HTTPError
 compat_input = input
 compat_integer_types = (int, )
 compat_itertools_count = itertools.count
@@ -88,7 +88,7 @@ compat_struct_unpack = struct.unpack
 compat_subprocess_get_DEVNULL = lambda: subprocess.DEVNULL
 compat_tokenize_tokenize = tokenize.tokenize
 compat_urllib_error = urllib.error
-compat_urllib_HTTPError = urllib.error.HTTPError
+compat_urllib_HTTPError = compat_HTTPError
 compat_urllib_parse = urllib.parse
 compat_urllib_parse_parse_qs = urllib.parse.parse_qs
 compat_urllib_parse_quote = urllib.parse.quote

yt_dlp/downloader/hls.py

@@ -369,6 +369,9 @@ class HlsFD(FragmentFD):
 
                 return output.getvalue().encode()
 
+            if len(fragments) == 1:
+                self.download_and_append_fragments(ctx, fragments, info_dict)
+            else:
                 self.download_and_append_fragments(
                     ctx, fragments, info_dict, pack_func=pack_fragment, finish_func=fin_fragments)
         else:

yt_dlp/networking/exceptions.py

@@ -1,9 +1,8 @@
 from __future__ import annotations
 
 import typing
-import urllib.error
 
-from ..utils import YoutubeDLError, deprecation_warning
+from ..utils import YoutubeDLError
 
 if typing.TYPE_CHECKING:
     from .common import RequestHandler, Response
@@ -101,117 +100,4 @@ class ProxyError(TransportError):
     pass
 
 
-class _CompatHTTPError(urllib.error.HTTPError, HTTPError):
-    """
-    Provides backwards compatibility with urllib.error.HTTPError.
-    Do not use this class directly, use HTTPError instead.
-    """
-
-    def __init__(self, http_error: HTTPError):
-        super().__init__(
-            url=http_error.response.url,
-            code=http_error.status,
-            msg=http_error.msg,
-            hdrs=http_error.response.headers,
-            fp=http_error.response
-        )
-        self._closer.close_called = True  # Disable auto close
-        self._http_error = http_error
-        HTTPError.__init__(self, http_error.response, redirect_loop=http_error.redirect_loop)
-
-    @property
-    def status(self):
-        return self._http_error.status
-
-    @status.setter
-    def status(self, value):
-        return
-
-    @property
-    def reason(self):
-        return self._http_error.reason
-
-    @reason.setter
-    def reason(self, value):
-        return
-
-    @property
-    def headers(self):
-        deprecation_warning('HTTPError.headers is deprecated, use HTTPError.response.headers instead')
-        return self._http_error.response.headers
-
-    @headers.setter
-    def headers(self, value):
-        return
-
-    def info(self):
-        deprecation_warning('HTTPError.info() is deprecated, use HTTPError.response.headers instead')
-        return self.response.headers
-
-    def getcode(self):
-        deprecation_warning('HTTPError.getcode is deprecated, use HTTPError.status instead')
-        return self.status
-
-    def geturl(self):
-        deprecation_warning('HTTPError.geturl is deprecated, use HTTPError.response.url instead')
-        return self.response.url
-
-    @property
-    def code(self):
-        deprecation_warning('HTTPError.code is deprecated, use HTTPError.status instead')
-        return self.status
-
-    @code.setter
-    def code(self, value):
-        return
-
-    @property
-    def url(self):
-        deprecation_warning('HTTPError.url is deprecated, use HTTPError.response.url instead')
-        return self.response.url
-
-    @url.setter
-    def url(self, value):
-        return
-
-    @property
-    def hdrs(self):
-        deprecation_warning('HTTPError.hdrs is deprecated, use HTTPError.response.headers instead')
-        return self.response.headers
-
-    @hdrs.setter
-    def hdrs(self, value):
-        return
-
-    @property
-    def filename(self):
-        deprecation_warning('HTTPError.filename is deprecated, use HTTPError.response.url instead')
-        return self.response.url
-
-    @filename.setter
-    def filename(self, value):
-        return
-
-    def __getattr__(self, name):
-        # File operations are passed through the response.
-        # Warn for some commonly used ones
-        passthrough_warnings = {
-            'read': 'response.read()',
-            # technically possibly due to passthrough, but we should discourage this
-            'get_header': 'response.get_header()',
-            'readable': 'response.readable()',
-            'closed': 'response.closed',
-            'tell': 'response.tell()',
-        }
-        if name in passthrough_warnings:
-            deprecation_warning(f'HTTPError.{name} is deprecated, use HTTPError.{passthrough_warnings[name]} instead')
-        return super().__getattr__(name)
-
-    def __str__(self):
-        return str(self._http_error)
-
-    def __repr__(self):
-        return repr(self._http_error)
-
-
 network_exceptions = (HTTPError, TransportError)