1 files changed, 200 insertions, 0 deletions
diff --git a/third_party/python/aiohttp/aiohttp/abc.py b/third_party/python/aiohttp/aiohttp/abc.py
new file mode 100644
index 0000000000..4abfd798d7
--- /dev/null
+++ b/third_party/python/aiohttp/aiohttp/abc.py
@@ -0,0 +1,200 @@
+import asyncio
+import logging
+from abc import ABC, abstractmethod
+from collections.abc import Sized
+from http.cookies import BaseCookie, Morsel
+from typing import (
+    TYPE_CHECKING,
+    Any,
+    Awaitable,
+    Callable,
+    Dict,
+    Generator,
+    Iterable,
+    List,
+    Optional,
+    Tuple,
+)
+
+from multidict import CIMultiDict
+from yarl import URL
+
+from .helpers import get_running_loop
+from .typedefs import LooseCookies
+
+if TYPE_CHECKING:  # pragma: no cover
+    from .web_app import Application
+    from .web_exceptions import HTTPException
+    from .web_request import BaseRequest, Request
+    from .web_response import StreamResponse
+else:
+    BaseRequest = Request = Application = StreamResponse = None
+    HTTPException = None
+
+
+class AbstractRouter(ABC):
+    def __init__(self) -> None:
+        self._frozen = False
+
+    def post_init(self, app: Application) -> None:
+        """Post init stage.
+
+        Not an abstract method for sake of backward compatibility,
+        but if the router wants to be aware of the application
+        it can override this.
+        """
+
+    @property
+    def frozen(self) -> bool:
+        return self._frozen
+
+    def freeze(self) -> None:
+        """Freeze router."""
+        self._frozen = True
+
+    @abstractmethod
+    async def resolve(self, request: Request) -> "AbstractMatchInfo":
+        """Return MATCH_INFO for given request"""
+
+
+class AbstractMatchInfo(ABC):
+    @property  # pragma: no branch
+    @abstractmethod
+    def handler(self) -> Callable[[Request], Awaitable[StreamResponse]]:
+        """Execute matched request handler"""
+
+    @property
+    @abstractmethod
+    def expect_handler(self) -> Callable[[Request], Awaitable[None]]:
+        """Expect handler for 100-continue processing"""
+
+    @property  # pragma: no branch
+    @abstractmethod
+    def http_exception(self) -> Optional[HTTPException]:
+        """HTTPException instance raised on router's resolving, or None"""
+
+    @abstractmethod  # pragma: no branch
+    def get_info(self) -> Dict[str, Any]:
+        """Return a dict with additional info useful for introspection"""
+
+    @property  # pragma: no branch
+    @abstractmethod
+    def apps(self) -> Tuple[Application, ...]:
+        """Stack of nested applications.
+
+        Top level application is left-most element.
+
+        """
+
+    @abstractmethod
+    def add_app(self, app: Application) -> None:
+        """Add application to the nested apps stack."""
+
+    @abstractmethod
+    def freeze(self) -> None:
+        """Freeze the match info.
+
+        The method is called after route resolution.
+
+        After the call .add_app() is forbidden.
+
+        """
+
+
+class AbstractView(ABC):
+    """Abstract class based view."""
+
+    def __init__(self, request: Request) -> None:
+        self._request = request
+
+    @property
+    def request(self) -> Request:
+        """Request instance."""
+        return self._request
+
+    @abstractmethod
+    def __await__(self) -> Generator[Any, None, StreamResponse]:
+        """Execute the view handler."""
+
+
+class AbstractResolver(ABC):
+    """Abstract DNS resolver."""
+
+    @abstractmethod
+    async def resolve(self, host: str, port: int, family: int) -> List[Dict[str, Any]]:
+        """Return IP address for given hostname"""
+
+    @abstractmethod
+    async def close(self) -> None:
+        """Release resolver"""
+
+
+if TYPE_CHECKING:  # pragma: no cover
+    IterableBase = Iterable[Morsel[str]]
+else:
+    IterableBase = Iterable
+
+
+class AbstractCookieJar(Sized, IterableBase):
+    """Abstract Cookie Jar."""
+
+    def __init__(self, *, loop: Optional[asyncio.AbstractEventLoop] = None) -> None:
+        self._loop = get_running_loop(loop)
+
+    @abstractmethod
+    def clear(self) -> None:
+        """Clear all cookies."""
+
+    @abstractmethod
+    def update_cookies(self, cookies: LooseCookies, response_url: URL = URL()) -> None:
+        """Update cookies."""
+
+    @abstractmethod
+    def filter_cookies(self, request_url: URL) -> "BaseCookie[str]":
+        """Return the jar's cookies filtered by their attributes."""
+
+
+class AbstractStreamWriter(ABC):
+    """Abstract stream writer."""
+
+    buffer_size = 0
+    output_size = 0
+    length = 0  # type: Optional[int]
+
+    @abstractmethod
+    async def write(self, chunk: bytes) -> None:
+        """Write chunk into stream."""
+
+    @abstractmethod
+    async def write_eof(self, chunk: bytes = b"") -> None:
+        """Write last chunk."""
+
+    @abstractmethod
+    async def drain(self) -> None:
+        """Flush the write buffer."""
+
+    @abstractmethod
+    def enable_compression(self, encoding: str = "deflate") -> None:
+        """Enable HTTP body compression"""
+
+    @abstractmethod
+    def enable_chunking(self) -> None:
+        """Enable HTTP chunked mode"""
+
+    @abstractmethod
+    async def write_headers(
+        self, status_line: str, headers: "CIMultiDict[str]"
+    ) -> None:
+        """Write HTTP headers"""
+
+
+class AbstractAccessLogger(ABC):
+    """Abstract writer to access log."""
+
+    def __init__(self, logger: logging.Logger, log_format: str) -> None:
+        self.logger = logger
+        self.log_format = log_format
+
+    @abstractmethod
+    def log(self, request: BaseRequest, response: StreamResponse, time: float) -> None:
+        """Emit log to logger."""