FM / aiohttp

/opt/alt/python38/lib64/python3.8/site-packages/aiohttp/

/opt/alt/python38/lib64/python3.8/site-packages/aiohttp

Name	Size	Mode	Actions
.hash/	-	0755	rm
__pycache__/	-	0755	rm
abc.py	5247	0644	edit dl rm
base_protocol.py	2701	0644	edit dl rm
client.py	43916	0644	edit dl rm
client_exceptions.py	8529	0644	edit dl rm
client_proto.py	8163	0644	edit dl rm
client_reqrep.py	36439	0644	edit dl rm
client_ws.py	10287	0644	edit dl rm
connector.py	42968	0644	edit dl rm
cookiejar.py	12163	0644	edit dl rm
formdata.py	6080	0644	edit dl rm
frozenlist.py	1718	0644	edit dl rm
frozenlist.pyi	1434	0644	edit dl rm
hdrs.py	3446	0644	edit dl rm
helpers.py	22918	0644	edit dl rm
http.py	1824	0644	edit dl rm
http_exceptions.py	2586	0644	edit dl rm
http_parser.py	30781	0644	edit dl rm
http_websocket.py	25098	0644	edit dl rm
http_writer.py	5341	0644	edit dl rm
locks.py	1220	0644	edit dl rm
log.py	325	0644	edit dl rm
multipart.py	32251	0644	edit dl rm
payload.py	13333	0644	edit dl rm
payload_streamer.py	2102	0644	edit dl rm
py.typed	7	0644	edit dl rm
pytest_plugin.py	11009	0644	edit dl rm
resolver.py	4608	0644	edit dl rm
signals.py	852	0644	edit dl rm
signals.pyi	319	0644	edit dl rm
streams.py	20530	0644	edit dl rm
tcp_helpers.py	962	0644	edit dl rm
test_utils.py	20253	0644	edit dl rm
tracing.py	14363	0644	edit dl rm
typedefs.py	1374	0644	edit dl rm
web.py	17881	0644	edit dl rm
web_app.py	17053	0644	edit dl rm
web_exceptions.py	10106	0644	edit dl rm
web_fileresponse.py	9025	0644	edit dl rm
web_log.py	7498	0644	edit dl rm
web_middlewares.py	4193	0644	edit dl rm
web_protocol.py	23251	0644	edit dl rm
web_request.py	26454	0644	edit dl rm
web_response.py	26202	0644	edit dl rm
web_routedef.py	6109	0644	edit dl rm
web_runner.py	11194	0644	edit dl rm
web_server.py	2058	0644	edit dl rm
web_urldispatcher.py	39532	0644	edit dl rm
web_ws.py	16783	0644	edit dl rm
worker.py	8022	0644	edit dl rm
_cparser.pxd	3959	0644	edit dl rm
_find_header.c	187570	0644	edit dl rm
_find_header.h	170	0644	edit dl rm
_find_header.pxd	68	0644	edit dl rm
_frozenlist.c	294193	0644	edit dl rm
_frozenlist.cpython-38-x86_64-linux-gnu.so	82936	0755	edit dl rm
_frozenlist.pyx	2605	0644	edit dl rm
_headers.pxi	2007	0644	edit dl rm
_helpers.c	211989	0644	edit dl rm
_helpers.cpython-38-x86_64-linux-gnu.so	61296	0755	edit dl rm
_helpers.pyi	202	0644	edit dl rm
_helpers.pyx	1049	0644	edit dl rm
_http_parser.c	1011524	0644	edit dl rm
_http_parser.cpython-38-x86_64-linux-gnu.so	475376	0755	edit dl rm
_http_parser.pyx	29022	0644	edit dl rm
_http_writer.c	213020	0644	edit dl rm
_http_writer.cpython-38-x86_64-linux-gnu.so	49160	0755	edit dl rm
_http_writer.pyx	4200	0644	edit dl rm
_websocket.c	137427	0644	edit dl rm
_websocket.cpython-38-x86_64-linux-gnu.so	31128	0755	edit dl rm
_websocket.pyx	1561	0644	edit dl rm
__init__.py	6934	0644	edit dl rm

Edit: /opt/alt/python38/lib64/python3.8/site-packages/aiohttp/streams.py (20530B)

import asyncio
import collections
import warnings
from typing import Awaitable, Callable, Generic, List, Optional, Tuple, TypeVar

from .base_protocol import BaseProtocol
from .helpers import BaseTimerContext, set_exception, set_result
from .log import internal_logger

try:  # pragma: no cover
    from typing import Deque
except ImportError:
    from typing_extensions import Deque

__all__ = (
    "EMPTY_PAYLOAD",
    "EofStream",
    "StreamReader",
    "DataQueue",
    "FlowControlDataQueue",
)

_T = TypeVar("_T")

class EofStream(Exception):
    """eof stream indication."""

class AsyncStreamIterator(Generic[_T]):
    def __init__(self, read_func: Callable[[], Awaitable[_T]]) -> None:
        self.read_func = read_func

def __aiter__(self) -> "AsyncStreamIterator[_T]":
        return self

async def __anext__(self) -> _T:
        try:
            rv = await self.read_func()
        except EofStream:
            raise StopAsyncIteration
        if rv == b"":
            raise StopAsyncIteration
        return rv

class ChunkTupleAsyncStreamIterator:
    def __init__(self, stream: "StreamReader") -> None:
        self._stream = stream

def __aiter__(self) -> "ChunkTupleAsyncStreamIterator":
        return self

async def __anext__(self) -> Tuple[bytes, bool]:
        rv = await self._stream.readchunk()
        if rv == (b"", False):
            raise StopAsyncIteration
        return rv

class AsyncStreamReaderMixin:
    def __aiter__(self) -> AsyncStreamIterator[bytes]:
        return AsyncStreamIterator(self.readline)  # type: ignore

def iter_chunked(self, n: int) -> AsyncStreamIterator[bytes]:
        """Returns an asynchronous iterator that yields chunks of size n.

Python-3.5 available for Python 3.5+ only
        """
        return AsyncStreamIterator(lambda: self.read(n))  # type: ignore

def iter_any(self) -> AsyncStreamIterator[bytes]:
        """Returns an asynchronous iterator that yields all the available
        data as soon as it is received

Python-3.5 available for Python 3.5+ only
        """
        return AsyncStreamIterator(self.readany)  # type: ignore

def iter_chunks(self) -> ChunkTupleAsyncStreamIterator:
        """Returns an asynchronous iterator that yields chunks of data
        as they are received by the server. The yielded objects are tuples
        of (bytes, bool) as returned by the StreamReader.readchunk method.

Python-3.5 available for Python 3.5+ only
        """
        return ChunkTupleAsyncStreamIterator(self)  # type: ignore

class StreamReader(AsyncStreamReaderMixin):
    """An enhancement of asyncio.StreamReader.

Supports asynchronous iteration by line, chunk or as available::

async for line in reader:
            ...
        async for chunk in reader.iter_chunked(1024):
            ...
        async for slice in reader.iter_any():
            ...

"""

total_bytes = 0

def __init__(
        self,
        protocol: BaseProtocol,
        limit: int,
        *,
        timer: Optional[BaseTimerContext] = None,
        loop: Optional[asyncio.AbstractEventLoop] = None
    ) -> None:
        self._protocol = protocol
        self._low_water = limit
        self._high_water = limit * 2
        if loop is None:
            loop = asyncio.get_event_loop()
        self._loop = loop
        self._size = 0
        self._cursor = 0
        self._http_chunk_splits = None  # type: Optional[List[int]]
        self._buffer = collections.deque()  # type: Deque[bytes]
        self._buffer_offset = 0
        self._eof = False
        self._waiter = None  # type: Optional[asyncio.Future[None]]
        self._eof_waiter = None  # type: Optional[asyncio.Future[None]]
        self._exception = None  # type: Optional[BaseException]
        self._timer = timer
        self._eof_callbacks = []  # type: List[Callable[[], None]]

def __repr__(self) -> str:
        info = [self.__class__.__name__]
        if self._size:
            info.append("%d bytes" % self._size)
        if self._eof:
            info.append("eof")
        if self._low_water != 2 ** 16:  # default limit
            info.append("low=%d high=%d" % (self._low_water, self._high_water))
        if self._waiter:
            info.append("w=%r" % self._waiter)
        if self._exception:
            info.append("e=%r" % self._exception)
        return "<%s>" % " ".join(info)

def get_read_buffer_limits(self) -> Tuple[int, int]:
        return (self._low_water, self._high_water)

def exception(self) -> Optional[BaseException]:
        return self._exception

def set_exception(self, exc: BaseException) -> None:
        self._exception = exc
        self._eof_callbacks.clear()

waiter = self._waiter
        if waiter is not None:
            self._waiter = None
            set_exception(waiter, exc)

waiter = self._eof_waiter
        if waiter is not None:
            self._eof_waiter = None
            set_exception(waiter, exc)

def on_eof(self, callback: Callable[[], None]) -> None:
        if self._eof:
            try:
                callback()
            except Exception:
                internal_logger.exception("Exception in eof callback")
        else:
            self._eof_callbacks.append(callback)

def feed_eof(self) -> None:
        self._eof = True

waiter = self._waiter
        if waiter is not None:
            self._waiter = None
            set_result(waiter, None)

waiter = self._eof_waiter
        if waiter is not None:
            self._eof_waiter = None
            set_result(waiter, None)

for cb in self._eof_callbacks:
            try:
                cb()
            except Exception:
                internal_logger.exception("Exception in eof callback")

self._eof_callbacks.clear()

def is_eof(self) -> bool:
        """Return True if  'feed_eof' was called."""
        return self._eof

def at_eof(self) -> bool:
        """Return True if the buffer is empty and 'feed_eof' was called."""
        return self._eof and not self._buffer

async def wait_eof(self) -> None:
        if self._eof:
            return

assert self._eof_waiter is None
        self._eof_waiter = self._loop.create_future()
        try:
            await self._eof_waiter
        finally:
            self._eof_waiter = None

def unread_data(self, data: bytes) -> None:
        """rollback reading some data from stream, inserting it to buffer head."""
        warnings.warn(
            "unread_data() is deprecated "
            "and will be removed in future releases (#3260)",
            DeprecationWarning,
            stacklevel=2,
        )
        if not data:
            return

if self._buffer_offset:
            self._buffer[0] = self._buffer[0][self._buffer_offset :]
            self._buffer_offset = 0
        self._size += len(data)
        self._cursor -= len(data)
        self._buffer.appendleft(data)
        self._eof_counter = 0

# TODO: size is ignored, remove the param later
    def feed_data(self, data: bytes, size: int = 0) -> None:
        assert not self._eof, "feed_data after feed_eof"

if not data:
            return

self._size += len(data)
        self._buffer.append(data)
        self.total_bytes += len(data)

waiter = self._waiter
        if waiter is not None:
            self._waiter = None
            set_result(waiter, None)

if self._size > self._high_water and not self._protocol._reading_paused:
            self._protocol.pause_reading()

def begin_http_chunk_receiving(self) -> None:
        if self._http_chunk_splits is None:
            if self.total_bytes:
                raise RuntimeError(
                    "Called begin_http_chunk_receiving when" "some data was already fed"
                )
            self._http_chunk_splits = []

def end_http_chunk_receiving(self) -> None:
        if self._http_chunk_splits is None:
            raise RuntimeError(
                "Called end_chunk_receiving without calling "
                "begin_chunk_receiving first"
            )

# self._http_chunk_splits contains logical byte offsets from start of
        # the body transfer. Each offset is the offset of the end of a chunk.
        # "Logical" means bytes, accessible for a user.
        # If no chunks containig logical data were received, current position
        # is difinitely zero.
        pos = self._http_chunk_splits[-1] if self._http_chunk_splits else 0

if self.total_bytes == pos:
            # We should not add empty chunks here. So we check for that.
            # Note, when chunked + gzip is used, we can receive a chunk
            # of compressed data, but that data may not be enough for gzip FSM
            # to yield any uncompressed data. That's why current position may
            # not change after receiving a chunk.
            return

self._http_chunk_splits.append(self.total_bytes)

# wake up readchunk when end of http chunk received
        waiter = self._waiter
        if waiter is not None:
            self._waiter = None
            set_result(waiter, None)

async def _wait(self, func_name: str) -> None:
        # StreamReader uses a future to link the protocol feed_data() method
        # to a read coroutine. Running two read coroutines at the same time
        # would have an unexpected behaviour. It would not possible to know
        # which coroutine would get the next data.
        if self._waiter is not None:
            raise RuntimeError(
                "%s() called while another coroutine is "
                "already waiting for incoming data" % func_name
            )

waiter = self._waiter = self._loop.create_future()
        try:
            if self._timer:
                with self._timer:
                    await waiter
            else:
                await waiter
        finally:
            self._waiter = None

async def readline(self) -> bytes:
        if self._exception is not None:
            raise self._exception

line = []
        line_size = 0
        not_enough = True

while not_enough:
            while self._buffer and not_enough:
                offset = self._buffer_offset
                ichar = self._buffer[0].find(b"\n", offset) + 1
                # Read from current offset to found b'\n' or to the end.
                data = self._read_nowait_chunk(ichar - offset if ichar else -1)
                line.append(data)
                line_size += len(data)
                if ichar:
                    not_enough = False

if line_size > self._high_water:
                    raise ValueError("Line is too long")

if self._eof:
                break

if not_enough:
                await self._wait("readline")

return b"".join(line)

async def read(self, n: int = -1) -> bytes:
        if self._exception is not None:
            raise self._exception

# migration problem; with DataQueue you have to catch
        # EofStream exception, so common way is to run payload.read() inside
        # infinite loop. what can cause real infinite loop with StreamReader
        # lets keep this code one major release.
        if __debug__:
            if self._eof and not self._buffer:
                self._eof_counter = getattr(self, "_eof_counter", 0) + 1
                if self._eof_counter > 5:
                    internal_logger.warning(
                        "Multiple access to StreamReader in eof state, "
                        "might be infinite loop.",
                        stack_info=True,
                    )

if not n:
            return b""

if n < 0:
            # This used to just loop creating a new waiter hoping to
            # collect everything in self._buffer, but that would
            # deadlock if the subprocess sends more than self.limit
            # bytes.  So just call self.readany() until EOF.
            blocks = []
            while True:
                block = await self.readany()
                if not block:
                    break
                blocks.append(block)
            return b"".join(blocks)

# TODO: should be `if` instead of `while`
        # because waiter maybe triggered on chunk end,
        # without feeding any data
        while not self._buffer and not self._eof:
            await self._wait("read")

return self._read_nowait(n)

async def readany(self) -> bytes:
        if self._exception is not None:
            raise self._exception

return self._read_nowait(-1)

async def readchunk(self) -> Tuple[bytes, bool]:
        """Returns a tuple of (data, end_of_http_chunk). When chunked transfer
        encoding is used, end_of_http_chunk is a boolean indicating if the end
        of the data corresponds to the end of a HTTP chunk , otherwise it is
        always False.
        """
        while True:
            if self._exception is not None:
                raise self._exception

while self._http_chunk_splits:
                pos = self._http_chunk_splits.pop(0)
                if pos == self._cursor:
                    return (b"", True)
                if pos > self._cursor:
                    return (self._read_nowait(pos - self._cursor), True)
                internal_logger.warning(
                    "Skipping HTTP chunk end due to data "
                    "consumption beyond chunk boundary"
                )

if self._buffer:
                return (self._read_nowait_chunk(-1), False)
                # return (self._read_nowait(-1), False)

if self._eof:
                # Special case for signifying EOF.
                # (b'', True) is not a final return value actually.
                return (b"", False)

await self._wait("readchunk")

async def readexactly(self, n: int) -> bytes:
        if self._exception is not None:
            raise self._exception

blocks = []  # type: List[bytes]
        while n > 0:
            block = await self.read(n)
            if not block:
                partial = b"".join(blocks)
                raise asyncio.IncompleteReadError(partial, len(partial) + n)
            blocks.append(block)
            n -= len(block)

return b"".join(blocks)

def read_nowait(self, n: int = -1) -> bytes:
        # default was changed to be consistent with .read(-1)
        #
        # I believe the most users don't know about the method and
        # they are not affected.
        if self._exception is not None:
            raise self._exception

if self._waiter and not self._waiter.done():
            raise RuntimeError(
                "Called while some coroutine is waiting for incoming data."
            )

return self._read_nowait(n)

def _read_nowait_chunk(self, n: int) -> bytes:
        first_buffer = self._buffer[0]
        offset = self._buffer_offset
        if n != -1 and len(first_buffer) - offset > n:
            data = first_buffer[offset : offset + n]
            self._buffer_offset += n

elif offset:
            self._buffer.popleft()
            data = first_buffer[offset:]
            self._buffer_offset = 0

else:
            data = self._buffer.popleft()

self._size -= len(data)
        self._cursor += len(data)

chunk_splits = self._http_chunk_splits
        # Prevent memory leak: drop useless chunk splits
        while chunk_splits and chunk_splits[0] < self._cursor:
            chunk_splits.pop(0)

if self._size < self._low_water and self._protocol._reading_paused:
            self._protocol.resume_reading()
        return data

def _read_nowait(self, n: int) -> bytes:
        """ Read not more than n bytes, or whole buffer if n == -1 """
        chunks = []

while self._buffer:
            chunk = self._read_nowait_chunk(n)
            chunks.append(chunk)
            if n != -1:
                n -= len(chunk)
                if n == 0:
                    break

return b"".join(chunks) if chunks else b""

class EmptyStreamReader(AsyncStreamReaderMixin):
    def exception(self) -> Optional[BaseException]:
        return None

def set_exception(self, exc: BaseException) -> None:
        pass

def on_eof(self, callback: Callable[[], None]) -> None:
        try:
            callback()
        except Exception:
            internal_logger.exception("Exception in eof callback")

def feed_eof(self) -> None:
        pass

def is_eof(self) -> bool:
        return True

def at_eof(self) -> bool:
        return True

async def wait_eof(self) -> None:
        return

def feed_data(self, data: bytes, n: int = 0) -> None:
        pass

async def readline(self) -> bytes:
        return b""

async def read(self, n: int = -1) -> bytes:
        return b""

async def readany(self) -> bytes:
        return b""

async def readchunk(self) -> Tuple[bytes, bool]:
        return (b"", True)

async def readexactly(self, n: int) -> bytes:
        raise asyncio.IncompleteReadError(b"", n)

def read_nowait(self) -> bytes:
        return b""

EMPTY_PAYLOAD = EmptyStreamReader()

class DataQueue(Generic[_T]):
    """DataQueue is a general-purpose blocking queue with one reader."""

def __init__(self, loop: asyncio.AbstractEventLoop) -> None:
        self._loop = loop
        self._eof = False
        self._waiter = None  # type: Optional[asyncio.Future[None]]
        self._exception = None  # type: Optional[BaseException]
        self._size = 0
        self._buffer = collections.deque()  # type: Deque[Tuple[_T, int]]

def __len__(self) -> int:
        return len(self._buffer)

def is_eof(self) -> bool:
        return self._eof

def at_eof(self) -> bool:
        return self._eof and not self._buffer

def exception(self) -> Optional[BaseException]:
        return self._exception

def set_exception(self, exc: BaseException) -> None:
        self._eof = True
        self._exception = exc

waiter = self._waiter
        if waiter is not None:
            self._waiter = None
            set_exception(waiter, exc)

def feed_data(self, data: _T, size: int = 0) -> None:
        self._size += size
        self._buffer.append((data, size))

waiter = self._waiter
        if waiter is not None:
            self._waiter = None
            set_result(waiter, None)

def feed_eof(self) -> None:
        self._eof = True

waiter = self._waiter
        if waiter is not None:
            self._waiter = None
            set_result(waiter, None)

async def read(self) -> _T:
        if not self._buffer and not self._eof:
            assert not self._waiter
            self._waiter = self._loop.create_future()
            try:
                await self._waiter
            except (asyncio.CancelledError, asyncio.TimeoutError):
                self._waiter = None
                raise

if self._buffer:
            data, size = self._buffer.popleft()
            self._size -= size
            return data
        else:
            if self._exception is not None:
                raise self._exception
            else:
                raise EofStream

def __aiter__(self) -> AsyncStreamIterator[_T]:
        return AsyncStreamIterator(self.read)

class FlowControlDataQueue(DataQueue[_T]):
    """FlowControlDataQueue resumes and pauses an underlying stream.

It is a destination for parsed data."""

def __init__(
        self, protocol: BaseProtocol, limit: int, *, loop: asyncio.AbstractEventLoop
    ) -> None:
        super().__init__(loop=loop)

self._protocol = protocol
        self._limit = limit * 2

def feed_data(self, data: _T, size: int = 0) -> None:
        super().feed_data(data, size)

if self._size > self._limit and not self._protocol._reading_paused:
            self._protocol.pause_reading()

async def read(self) -> _T:
        try:
            return await super().read()
        finally:
            if self._size < self._limit and self._protocol._reading_paused:
                self._protocol.resume_reading()

cmd: