1140 lines
42 KiB
Python
1140 lines
42 KiB
Python
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"""HTTP Client for asyncio."""
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import asyncio
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import base64
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import hashlib
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import json
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import os
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import sys
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import traceback
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import warnings
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from types import SimpleNamespace, TracebackType
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from typing import ( # noqa
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Any,
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Coroutine,
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Generator,
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Generic,
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Iterable,
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List,
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Mapping,
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Optional,
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Set,
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Tuple,
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Type,
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TypeVar,
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Union,
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)
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import attr
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from multidict import CIMultiDict, MultiDict, MultiDictProxy, istr
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from yarl import URL
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from . import hdrs, http, payload
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from .abc import AbstractCookieJar
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from .client_exceptions import (
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ClientConnectionError,
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ClientConnectorCertificateError,
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ClientConnectorError,
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ClientConnectorSSLError,
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ClientError,
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ClientHttpProxyError,
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ClientOSError,
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ClientPayloadError,
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ClientProxyConnectionError,
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ClientResponseError,
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ClientSSLError,
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ContentTypeError,
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InvalidURL,
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ServerConnectionError,
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ServerDisconnectedError,
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ServerFingerprintMismatch,
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ServerTimeoutError,
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TooManyRedirects,
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WSServerHandshakeError,
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)
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from .client_reqrep import (
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ClientRequest,
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ClientResponse,
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Fingerprint,
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RequestInfo,
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_merge_ssl_params,
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)
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from .client_ws import ClientWebSocketResponse
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from .connector import BaseConnector, TCPConnector, UnixConnector
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from .cookiejar import CookieJar
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from .helpers import (
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DEBUG,
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PY_36,
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BasicAuth,
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CeilTimeout,
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TimeoutHandle,
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get_running_loop,
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proxies_from_env,
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sentinel,
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strip_auth_from_url,
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)
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from .http import WS_KEY, HttpVersion, WebSocketReader, WebSocketWriter
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from .http_websocket import ( # noqa
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WSHandshakeError,
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WSMessage,
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ws_ext_gen,
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ws_ext_parse,
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)
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from .streams import FlowControlDataQueue
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from .tracing import Trace, TraceConfig
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from .typedefs import JSONEncoder, LooseCookies, LooseHeaders, StrOrURL
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__all__ = (
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# client_exceptions
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'ClientConnectionError',
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'ClientConnectorCertificateError',
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'ClientConnectorError',
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'ClientConnectorSSLError',
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'ClientError',
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'ClientHttpProxyError',
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'ClientOSError',
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'ClientPayloadError',
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'ClientProxyConnectionError',
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'ClientResponseError',
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'ClientSSLError',
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'ContentTypeError',
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'InvalidURL',
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'ServerConnectionError',
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'ServerDisconnectedError',
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'ServerFingerprintMismatch',
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'ServerTimeoutError',
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'TooManyRedirects',
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'WSServerHandshakeError',
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# client_reqrep
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'ClientRequest',
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'ClientResponse',
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'Fingerprint',
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'RequestInfo',
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# connector
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'BaseConnector',
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'TCPConnector',
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'UnixConnector',
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# client_ws
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'ClientWebSocketResponse',
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# client
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'ClientSession',
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'ClientTimeout',
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'request')
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try:
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from ssl import SSLContext
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except ImportError: # pragma: no cover
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SSLContext = object # type: ignore
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@attr.s(frozen=True, slots=True)
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class ClientTimeout:
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total = attr.ib(type=Optional[float], default=None)
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connect = attr.ib(type=Optional[float], default=None)
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sock_read = attr.ib(type=Optional[float], default=None)
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sock_connect = attr.ib(type=Optional[float], default=None)
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# pool_queue_timeout = attr.ib(type=float, default=None)
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# dns_resolution_timeout = attr.ib(type=float, default=None)
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# socket_connect_timeout = attr.ib(type=float, default=None)
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# connection_acquiring_timeout = attr.ib(type=float, default=None)
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# new_connection_timeout = attr.ib(type=float, default=None)
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# http_header_timeout = attr.ib(type=float, default=None)
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# response_body_timeout = attr.ib(type=float, default=None)
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# to create a timeout specific for a single request, either
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# - create a completely new one to overwrite the default
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# - or use http://www.attrs.org/en/stable/api.html#attr.evolve
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# to overwrite the defaults
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# 5 Minute default read timeout
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DEFAULT_TIMEOUT = ClientTimeout(total=5*60)
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_RetType = TypeVar('_RetType')
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class ClientSession:
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"""First-class interface for making HTTP requests."""
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ATTRS = frozenset([
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'_source_traceback', '_connector',
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'requote_redirect_url', '_loop', '_cookie_jar',
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'_connector_owner', '_default_auth',
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'_version', '_json_serialize',
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'_requote_redirect_url',
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'_timeout', '_raise_for_status', '_auto_decompress',
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'_trust_env', '_default_headers', '_skip_auto_headers',
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'_request_class', '_response_class',
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'_ws_response_class', '_trace_configs'])
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_source_traceback = None
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_connector = None
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def __init__(self, *, connector: Optional[BaseConnector]=None,
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loop: Optional[asyncio.AbstractEventLoop]=None,
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cookies: Optional[LooseCookies]=None,
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headers: Optional[LooseHeaders]=None,
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skip_auto_headers: Optional[Iterable[str]]=None,
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auth: Optional[BasicAuth]=None,
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json_serialize: JSONEncoder=json.dumps,
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request_class: Type[ClientRequest]=ClientRequest,
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response_class: Type[ClientResponse]=ClientResponse,
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ws_response_class: Type[ClientWebSocketResponse]=ClientWebSocketResponse, # noqa
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version: HttpVersion=http.HttpVersion11,
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cookie_jar: Optional[AbstractCookieJar]=None,
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connector_owner: bool=True,
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raise_for_status: bool=False,
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read_timeout: Union[float, object]=sentinel,
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conn_timeout: Optional[float]=None,
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timeout: Union[object, ClientTimeout]=sentinel,
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auto_decompress: bool=True,
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trust_env: bool=False,
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requote_redirect_url: bool=True,
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trace_configs: Optional[List[TraceConfig]]=None) -> None:
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if loop is None:
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if connector is not None:
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loop = connector._loop
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loop = get_running_loop(loop)
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if connector is None:
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connector = TCPConnector(loop=loop)
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if connector._loop is not loop:
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raise RuntimeError(
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"Session and connector has to use same event loop")
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self._loop = loop
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if loop.get_debug():
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self._source_traceback = traceback.extract_stack(sys._getframe(1))
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if cookie_jar is None:
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cookie_jar = CookieJar(loop=loop)
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self._cookie_jar = cookie_jar
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if cookies is not None:
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self._cookie_jar.update_cookies(cookies)
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self._connector = connector # type: BaseConnector
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self._connector_owner = connector_owner
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self._default_auth = auth
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self._version = version
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self._json_serialize = json_serialize
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if timeout is sentinel:
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self._timeout = DEFAULT_TIMEOUT
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if read_timeout is not sentinel:
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warnings.warn("read_timeout is deprecated, "
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"use timeout argument instead",
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DeprecationWarning,
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stacklevel=2)
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self._timeout = attr.evolve(self._timeout, total=read_timeout)
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if conn_timeout is not None:
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self._timeout = attr.evolve(self._timeout,
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connect=conn_timeout)
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warnings.warn("conn_timeout is deprecated, "
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"use timeout argument instead",
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DeprecationWarning,
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stacklevel=2)
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else:
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self._timeout = timeout # type: ignore
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if read_timeout is not sentinel:
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raise ValueError("read_timeout and timeout parameters "
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"conflict, please setup "
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"timeout.read")
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if conn_timeout is not None:
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raise ValueError("conn_timeout and timeout parameters "
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"conflict, please setup "
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"timeout.connect")
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self._raise_for_status = raise_for_status
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self._auto_decompress = auto_decompress
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self._trust_env = trust_env
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self._requote_redirect_url = requote_redirect_url
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# Convert to list of tuples
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if headers:
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headers = CIMultiDict(headers)
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else:
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headers = CIMultiDict()
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self._default_headers = headers
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if skip_auto_headers is not None:
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self._skip_auto_headers = frozenset([istr(i)
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for i in skip_auto_headers])
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else:
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self._skip_auto_headers = frozenset()
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self._request_class = request_class
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self._response_class = response_class
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self._ws_response_class = ws_response_class
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self._trace_configs = trace_configs or []
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for trace_config in self._trace_configs:
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trace_config.freeze()
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def __init_subclass__(cls: Type['ClientSession']) -> None:
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warnings.warn("Inheritance class {} from ClientSession "
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"is discouraged".format(cls.__name__),
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DeprecationWarning,
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stacklevel=2)
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if DEBUG:
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def __setattr__(self, name: str, val: Any) -> None:
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if name not in self.ATTRS:
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warnings.warn("Setting custom ClientSession.{} attribute "
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"is discouraged".format(name),
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DeprecationWarning,
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stacklevel=2)
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super().__setattr__(name, val)
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def __del__(self, _warnings: Any=warnings) -> None:
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if not self.closed:
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if PY_36:
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kwargs = {'source': self}
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else:
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kwargs = {}
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_warnings.warn("Unclosed client session {!r}".format(self),
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ResourceWarning,
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**kwargs)
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context = {'client_session': self,
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'message': 'Unclosed client session'}
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if self._source_traceback is not None:
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context['source_traceback'] = self._source_traceback
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self._loop.call_exception_handler(context)
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def request(self,
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method: str,
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url: StrOrURL,
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**kwargs: Any) -> '_RequestContextManager':
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"""Perform HTTP request."""
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return _RequestContextManager(self._request(method, url, **kwargs))
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async def _request(
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self,
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method: str,
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str_or_url: StrOrURL, *,
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params: Optional[Mapping[str, str]]=None,
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data: Any=None,
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json: Any=None,
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cookies: Optional[LooseCookies]=None,
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headers: LooseHeaders=None,
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skip_auto_headers: Optional[Iterable[str]]=None,
|
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auth: Optional[BasicAuth]=None,
|
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allow_redirects: bool=True,
|
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max_redirects: int=10,
|
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compress: Optional[str]=None,
|
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chunked: Optional[bool]=None,
|
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expect100: bool=False,
|
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raise_for_status: Optional[bool]=None,
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read_until_eof: bool=True,
|
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proxy: Optional[StrOrURL]=None,
|
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|
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proxy_auth: Optional[BasicAuth]=None,
|
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|
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timeout: Union[ClientTimeout, object]=sentinel,
|
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|
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verify_ssl: Optional[bool]=None,
|
||
|
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fingerprint: Optional[bytes]=None,
|
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|
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ssl_context: Optional[SSLContext]=None,
|
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|
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ssl: Optional[Union[SSLContext, bool, Fingerprint]]=None,
|
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proxy_headers: Optional[LooseHeaders]=None,
|
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trace_request_ctx: Optional[SimpleNamespace]=None
|
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) -> ClientResponse:
|
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|
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|
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# NOTE: timeout clamps existing connect and read timeouts. We cannot
|
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|
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# set the default to None because we need to detect if the user wants
|
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|
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# to use the existing timeouts by setting timeout to None.
|
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|
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|
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|
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if self.closed:
|
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|
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raise RuntimeError('Session is closed')
|
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|
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|
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ssl = _merge_ssl_params(ssl, verify_ssl, ssl_context, fingerprint)
|
||
|
|
|
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|
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if data is not None and json is not None:
|
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raise ValueError(
|
||
|
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'data and json parameters can not be used at the same time')
|
||
|
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elif json is not None:
|
||
|
|
data = payload.JsonPayload(json, dumps=self._json_serialize)
|
||
|
|
|
||
|
|
if not isinstance(chunked, bool) and chunked is not None:
|
||
|
|
warnings.warn(
|
||
|
|
'Chunk size is deprecated #1615', DeprecationWarning)
|
||
|
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|
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|
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redirects = 0
|
||
|
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history = []
|
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|
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version = self._version
|
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|
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|
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|
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# Merge with default headers and transform to CIMultiDict
|
||
|
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headers = self._prepare_headers(headers)
|
||
|
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proxy_headers = self._prepare_headers(proxy_headers)
|
||
|
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|
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|
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try:
|
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url = URL(str_or_url)
|
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|
|
except ValueError:
|
||
|
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raise InvalidURL(str_or_url)
|
||
|
|
|
||
|
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skip_headers = set(self._skip_auto_headers)
|
||
|
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if skip_auto_headers is not None:
|
||
|
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for i in skip_auto_headers:
|
||
|
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skip_headers.add(istr(i))
|
||
|
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|
||
|
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if proxy is not None:
|
||
|
|
try:
|
||
|
|
proxy = URL(proxy)
|
||
|
|
except ValueError:
|
||
|
|
raise InvalidURL(proxy)
|
||
|
|
|
||
|
|
if timeout is sentinel:
|
||
|
|
real_timeout = self._timeout # type: ClientTimeout
|
||
|
|
else:
|
||
|
|
if not isinstance(timeout, ClientTimeout):
|
||
|
|
real_timeout = ClientTimeout(total=timeout) # type: ignore
|
||
|
|
else:
|
||
|
|
real_timeout = timeout
|
||
|
|
# timeout is cumulative for all request operations
|
||
|
|
# (request, redirects, responses, data consuming)
|
||
|
|
tm = TimeoutHandle(self._loop, real_timeout.total)
|
||
|
|
handle = tm.start()
|
||
|
|
|
||
|
|
traces = [
|
||
|
|
Trace(
|
||
|
|
self,
|
||
|
|
trace_config,
|
||
|
|
trace_config.trace_config_ctx(
|
||
|
|
trace_request_ctx=trace_request_ctx)
|
||
|
|
)
|
||
|
|
for trace_config in self._trace_configs
|
||
|
|
]
|
||
|
|
|
||
|
|
for trace in traces:
|
||
|
|
await trace.send_request_start(
|
||
|
|
method,
|
||
|
|
url,
|
||
|
|
headers
|
||
|
|
)
|
||
|
|
|
||
|
|
timer = tm.timer()
|
||
|
|
try:
|
||
|
|
with timer:
|
||
|
|
while True:
|
||
|
|
url, auth_from_url = strip_auth_from_url(url)
|
||
|
|
if auth and auth_from_url:
|
||
|
|
raise ValueError("Cannot combine AUTH argument with "
|
||
|
|
"credentials encoded in URL")
|
||
|
|
|
||
|
|
if auth is None:
|
||
|
|
auth = auth_from_url
|
||
|
|
if auth is None:
|
||
|
|
auth = self._default_auth
|
||
|
|
# It would be confusing if we support explicit
|
||
|
|
# Authorization header with auth argument
|
||
|
|
if (headers is not None and
|
||
|
|
auth is not None and
|
||
|
|
hdrs.AUTHORIZATION in headers):
|
||
|
|
raise ValueError("Cannot combine AUTHORIZATION header "
|
||
|
|
"with AUTH argument or credentials "
|
||
|
|
"encoded in URL")
|
||
|
|
|
||
|
|
session_cookies = self._cookie_jar.filter_cookies(url)
|
||
|
|
|
||
|
|
if cookies is not None:
|
||
|
|
tmp_cookie_jar = CookieJar()
|
||
|
|
tmp_cookie_jar.update_cookies(cookies)
|
||
|
|
req_cookies = tmp_cookie_jar.filter_cookies(url)
|
||
|
|
if req_cookies:
|
||
|
|
session_cookies.load(req_cookies)
|
||
|
|
|
||
|
|
cookies = session_cookies
|
||
|
|
|
||
|
|
if proxy is not None:
|
||
|
|
proxy = URL(proxy)
|
||
|
|
elif self._trust_env:
|
||
|
|
for scheme, proxy_info in proxies_from_env().items():
|
||
|
|
if scheme == url.scheme:
|
||
|
|
proxy = proxy_info.proxy
|
||
|
|
proxy_auth = proxy_info.proxy_auth
|
||
|
|
break
|
||
|
|
|
||
|
|
req = self._request_class(
|
||
|
|
method, url, params=params, headers=headers,
|
||
|
|
skip_auto_headers=skip_headers, data=data,
|
||
|
|
cookies=cookies, auth=auth, version=version,
|
||
|
|
compress=compress, chunked=chunked,
|
||
|
|
expect100=expect100, loop=self._loop,
|
||
|
|
response_class=self._response_class,
|
||
|
|
proxy=proxy, proxy_auth=proxy_auth, timer=timer,
|
||
|
|
session=self,
|
||
|
|
ssl=ssl, proxy_headers=proxy_headers, traces=traces)
|
||
|
|
|
||
|
|
# connection timeout
|
||
|
|
try:
|
||
|
|
with CeilTimeout(real_timeout.connect,
|
||
|
|
loop=self._loop):
|
||
|
|
assert self._connector is not None
|
||
|
|
conn = await self._connector.connect(
|
||
|
|
req,
|
||
|
|
traces=traces,
|
||
|
|
timeout=real_timeout
|
||
|
|
)
|
||
|
|
except asyncio.TimeoutError as exc:
|
||
|
|
raise ServerTimeoutError(
|
||
|
|
'Connection timeout '
|
||
|
|
'to host {0}'.format(url)) from exc
|
||
|
|
|
||
|
|
assert conn.transport is not None
|
||
|
|
|
||
|
|
assert conn.protocol is not None
|
||
|
|
conn.protocol.set_response_params(
|
||
|
|
timer=timer,
|
||
|
|
skip_payload=method.upper() == 'HEAD',
|
||
|
|
read_until_eof=read_until_eof,
|
||
|
|
auto_decompress=self._auto_decompress,
|
||
|
|
read_timeout=real_timeout.sock_read)
|
||
|
|
|
||
|
|
try:
|
||
|
|
try:
|
||
|
|
resp = await req.send(conn)
|
||
|
|
try:
|
||
|
|
await resp.start(conn)
|
||
|
|
except BaseException:
|
||
|
|
resp.close()
|
||
|
|
raise
|
||
|
|
except BaseException:
|
||
|
|
conn.close()
|
||
|
|
raise
|
||
|
|
except ClientError:
|
||
|
|
raise
|
||
|
|
except OSError as exc:
|
||
|
|
raise ClientOSError(*exc.args) from exc
|
||
|
|
|
||
|
|
self._cookie_jar.update_cookies(resp.cookies, resp.url)
|
||
|
|
|
||
|
|
# redirects
|
||
|
|
if resp.status in (
|
||
|
|
301, 302, 303, 307, 308) and allow_redirects:
|
||
|
|
|
||
|
|
for trace in traces:
|
||
|
|
await trace.send_request_redirect(
|
||
|
|
method,
|
||
|
|
url,
|
||
|
|
headers,
|
||
|
|
resp
|
||
|
|
)
|
||
|
|
|
||
|
|
redirects += 1
|
||
|
|
history.append(resp)
|
||
|
|
if max_redirects and redirects >= max_redirects:
|
||
|
|
resp.close()
|
||
|
|
raise TooManyRedirects(
|
||
|
|
history[0].request_info, tuple(history))
|
||
|
|
|
||
|
|
# For 301 and 302, mimic IE, now changed in RFC
|
||
|
|
# https://github.com/kennethreitz/requests/pull/269
|
||
|
|
if (resp.status == 303 and
|
||
|
|
resp.method != hdrs.METH_HEAD) \
|
||
|
|
or (resp.status in (301, 302) and
|
||
|
|
resp.method == hdrs.METH_POST):
|
||
|
|
method = hdrs.METH_GET
|
||
|
|
data = None
|
||
|
|
if headers.get(hdrs.CONTENT_LENGTH):
|
||
|
|
headers.pop(hdrs.CONTENT_LENGTH)
|
||
|
|
|
||
|
|
r_url = (resp.headers.get(hdrs.LOCATION) or
|
||
|
|
resp.headers.get(hdrs.URI))
|
||
|
|
if r_url is None:
|
||
|
|
# see github.com/aio-libs/aiohttp/issues/2022
|
||
|
|
break
|
||
|
|
else:
|
||
|
|
# reading from correct redirection
|
||
|
|
# response is forbidden
|
||
|
|
resp.release()
|
||
|
|
|
||
|
|
try:
|
||
|
|
r_url = URL(
|
||
|
|
r_url, encoded=not self._requote_redirect_url)
|
||
|
|
|
||
|
|
except ValueError:
|
||
|
|
raise InvalidURL(r_url)
|
||
|
|
|
||
|
|
scheme = r_url.scheme
|
||
|
|
if scheme not in ('http', 'https', ''):
|
||
|
|
resp.close()
|
||
|
|
raise ValueError(
|
||
|
|
'Can redirect only to http or https')
|
||
|
|
elif not scheme:
|
||
|
|
r_url = url.join(r_url)
|
||
|
|
|
||
|
|
if url.origin() != r_url.origin():
|
||
|
|
auth = None
|
||
|
|
headers.pop(hdrs.AUTHORIZATION, None)
|
||
|
|
|
||
|
|
url = r_url
|
||
|
|
params = None
|
||
|
|
resp.release()
|
||
|
|
continue
|
||
|
|
|
||
|
|
break
|
||
|
|
|
||
|
|
# check response status
|
||
|
|
if raise_for_status is None:
|
||
|
|
raise_for_status = self._raise_for_status
|
||
|
|
if raise_for_status:
|
||
|
|
resp.raise_for_status()
|
||
|
|
|
||
|
|
# register connection
|
||
|
|
if handle is not None:
|
||
|
|
if resp.connection is not None:
|
||
|
|
resp.connection.add_callback(handle.cancel)
|
||
|
|
else:
|
||
|
|
handle.cancel()
|
||
|
|
|
||
|
|
resp._history = tuple(history)
|
||
|
|
|
||
|
|
for trace in traces:
|
||
|
|
await trace.send_request_end(
|
||
|
|
method,
|
||
|
|
url,
|
||
|
|
headers,
|
||
|
|
resp
|
||
|
|
)
|
||
|
|
return resp
|
||
|
|
|
||
|
|
except BaseException as e:
|
||
|
|
# cleanup timer
|
||
|
|
tm.close()
|
||
|
|
if handle:
|
||
|
|
handle.cancel()
|
||
|
|
handle = None
|
||
|
|
|
||
|
|
for trace in traces:
|
||
|
|
await trace.send_request_exception(
|
||
|
|
method,
|
||
|
|
url,
|
||
|
|
headers,
|
||
|
|
e
|
||
|
|
)
|
||
|
|
raise
|
||
|
|
|
||
|
|
def ws_connect(
|
||
|
|
self,
|
||
|
|
url: StrOrURL, *,
|
||
|
|
method: str=hdrs.METH_GET,
|
||
|
|
protocols: Iterable[str]=(),
|
||
|
|
timeout: float=10.0,
|
||
|
|
receive_timeout: Optional[float]=None,
|
||
|
|
autoclose: bool=True,
|
||
|
|
autoping: bool=True,
|
||
|
|
heartbeat: Optional[float]=None,
|
||
|
|
auth: Optional[BasicAuth]=None,
|
||
|
|
origin: Optional[str]=None,
|
||
|
|
headers: Optional[LooseHeaders]=None,
|
||
|
|
proxy: Optional[StrOrURL]=None,
|
||
|
|
proxy_auth: Optional[BasicAuth]=None,
|
||
|
|
ssl: Union[SSLContext, bool, None, Fingerprint]=None,
|
||
|
|
verify_ssl: Optional[bool]=None,
|
||
|
|
fingerprint: Optional[bytes]=None,
|
||
|
|
ssl_context: Optional[SSLContext]=None,
|
||
|
|
proxy_headers: Optional[LooseHeaders]=None,
|
||
|
|
compress: int=0,
|
||
|
|
max_msg_size: int=4*1024*1024) -> '_WSRequestContextManager':
|
||
|
|
"""Initiate websocket connection."""
|
||
|
|
return _WSRequestContextManager(
|
||
|
|
self._ws_connect(url,
|
||
|
|
method=method,
|
||
|
|
protocols=protocols,
|
||
|
|
timeout=timeout,
|
||
|
|
receive_timeout=receive_timeout,
|
||
|
|
autoclose=autoclose,
|
||
|
|
autoping=autoping,
|
||
|
|
heartbeat=heartbeat,
|
||
|
|
auth=auth,
|
||
|
|
origin=origin,
|
||
|
|
headers=headers,
|
||
|
|
proxy=proxy,
|
||
|
|
proxy_auth=proxy_auth,
|
||
|
|
ssl=ssl,
|
||
|
|
verify_ssl=verify_ssl,
|
||
|
|
fingerprint=fingerprint,
|
||
|
|
ssl_context=ssl_context,
|
||
|
|
proxy_headers=proxy_headers,
|
||
|
|
compress=compress,
|
||
|
|
max_msg_size=max_msg_size))
|
||
|
|
|
||
|
|
async def _ws_connect(
|
||
|
|
self,
|
||
|
|
url: StrOrURL, *,
|
||
|
|
method: str=hdrs.METH_GET,
|
||
|
|
protocols: Iterable[str]=(),
|
||
|
|
timeout: float=10.0,
|
||
|
|
receive_timeout: Optional[float]=None,
|
||
|
|
autoclose: bool=True,
|
||
|
|
autoping: bool=True,
|
||
|
|
heartbeat: Optional[float]=None,
|
||
|
|
auth: Optional[BasicAuth]=None,
|
||
|
|
origin: Optional[str]=None,
|
||
|
|
headers: Optional[LooseHeaders]=None,
|
||
|
|
proxy: Optional[StrOrURL]=None,
|
||
|
|
proxy_auth: Optional[BasicAuth]=None,
|
||
|
|
ssl: Union[SSLContext, bool, None, Fingerprint]=None,
|
||
|
|
verify_ssl: Optional[bool]=None,
|
||
|
|
fingerprint: Optional[bytes]=None,
|
||
|
|
ssl_context: Optional[SSLContext]=None,
|
||
|
|
proxy_headers: Optional[LooseHeaders]=None,
|
||
|
|
compress: int=0,
|
||
|
|
max_msg_size: int=4*1024*1024
|
||
|
|
) -> ClientWebSocketResponse:
|
||
|
|
|
||
|
|
if headers is None:
|
||
|
|
real_headers = CIMultiDict() # type: CIMultiDict[str]
|
||
|
|
else:
|
||
|
|
real_headers = CIMultiDict(headers)
|
||
|
|
|
||
|
|
default_headers = {
|
||
|
|
hdrs.UPGRADE: hdrs.WEBSOCKET,
|
||
|
|
hdrs.CONNECTION: hdrs.UPGRADE,
|
||
|
|
hdrs.SEC_WEBSOCKET_VERSION: '13',
|
||
|
|
}
|
||
|
|
|
||
|
|
for key, value in default_headers.items():
|
||
|
|
real_headers.setdefault(key, value)
|
||
|
|
|
||
|
|
sec_key = base64.b64encode(os.urandom(16))
|
||
|
|
real_headers[hdrs.SEC_WEBSOCKET_KEY] = sec_key.decode()
|
||
|
|
|
||
|
|
if protocols:
|
||
|
|
real_headers[hdrs.SEC_WEBSOCKET_PROTOCOL] = ','.join(protocols)
|
||
|
|
if origin is not None:
|
||
|
|
real_headers[hdrs.ORIGIN] = origin
|
||
|
|
if compress:
|
||
|
|
extstr = ws_ext_gen(compress=compress)
|
||
|
|
real_headers[hdrs.SEC_WEBSOCKET_EXTENSIONS] = extstr
|
||
|
|
|
||
|
|
ssl = _merge_ssl_params(ssl, verify_ssl, ssl_context, fingerprint)
|
||
|
|
|
||
|
|
# send request
|
||
|
|
resp = await self.request(method, url,
|
||
|
|
headers=real_headers,
|
||
|
|
read_until_eof=False,
|
||
|
|
auth=auth,
|
||
|
|
proxy=proxy,
|
||
|
|
proxy_auth=proxy_auth,
|
||
|
|
ssl=ssl,
|
||
|
|
proxy_headers=proxy_headers)
|
||
|
|
|
||
|
|
try:
|
||
|
|
# check handshake
|
||
|
|
if resp.status != 101:
|
||
|
|
raise WSServerHandshakeError(
|
||
|
|
resp.request_info,
|
||
|
|
resp.history,
|
||
|
|
message='Invalid response status',
|
||
|
|
status=resp.status,
|
||
|
|
headers=resp.headers)
|
||
|
|
|
||
|
|
if resp.headers.get(hdrs.UPGRADE, '').lower() != 'websocket':
|
||
|
|
raise WSServerHandshakeError(
|
||
|
|
resp.request_info,
|
||
|
|
resp.history,
|
||
|
|
message='Invalid upgrade header',
|
||
|
|
status=resp.status,
|
||
|
|
headers=resp.headers)
|
||
|
|
|
||
|
|
if resp.headers.get(hdrs.CONNECTION, '').lower() != 'upgrade':
|
||
|
|
raise WSServerHandshakeError(
|
||
|
|
resp.request_info,
|
||
|
|
resp.history,
|
||
|
|
message='Invalid connection header',
|
||
|
|
status=resp.status,
|
||
|
|
headers=resp.headers)
|
||
|
|
|
||
|
|
# key calculation
|
||
|
|
key = resp.headers.get(hdrs.SEC_WEBSOCKET_ACCEPT, '')
|
||
|
|
match = base64.b64encode(
|
||
|
|
hashlib.sha1(sec_key + WS_KEY).digest()).decode()
|
||
|
|
if key != match:
|
||
|
|
raise WSServerHandshakeError(
|
||
|
|
resp.request_info,
|
||
|
|
resp.history,
|
||
|
|
message='Invalid challenge response',
|
||
|
|
status=resp.status,
|
||
|
|
headers=resp.headers)
|
||
|
|
|
||
|
|
# websocket protocol
|
||
|
|
protocol = None
|
||
|
|
if protocols and hdrs.SEC_WEBSOCKET_PROTOCOL in resp.headers:
|
||
|
|
resp_protocols = [
|
||
|
|
proto.strip() for proto in
|
||
|
|
resp.headers[hdrs.SEC_WEBSOCKET_PROTOCOL].split(',')]
|
||
|
|
|
||
|
|
for proto in resp_protocols:
|
||
|
|
if proto in protocols:
|
||
|
|
protocol = proto
|
||
|
|
break
|
||
|
|
|
||
|
|
# websocket compress
|
||
|
|
notakeover = False
|
||
|
|
if compress:
|
||
|
|
compress_hdrs = resp.headers.get(hdrs.SEC_WEBSOCKET_EXTENSIONS)
|
||
|
|
if compress_hdrs:
|
||
|
|
try:
|
||
|
|
compress, notakeover = ws_ext_parse(compress_hdrs)
|
||
|
|
except WSHandshakeError as exc:
|
||
|
|
raise WSServerHandshakeError(
|
||
|
|
resp.request_info,
|
||
|
|
resp.history,
|
||
|
|
message=exc.args[0],
|
||
|
|
status=resp.status,
|
||
|
|
headers=resp.headers)
|
||
|
|
else:
|
||
|
|
compress = 0
|
||
|
|
notakeover = False
|
||
|
|
|
||
|
|
conn = resp.connection
|
||
|
|
assert conn is not None
|
||
|
|
proto = conn.protocol
|
||
|
|
assert proto is not None
|
||
|
|
transport = conn.transport
|
||
|
|
assert transport is not None
|
||
|
|
reader = FlowControlDataQueue(
|
||
|
|
proto, limit=2 ** 16, loop=self._loop) # type: FlowControlDataQueue[WSMessage] # noqa
|
||
|
|
proto.set_parser(WebSocketReader(reader, max_msg_size), reader)
|
||
|
|
writer = WebSocketWriter(
|
||
|
|
proto, transport, use_mask=True,
|
||
|
|
compress=compress, notakeover=notakeover)
|
||
|
|
except BaseException:
|
||
|
|
resp.close()
|
||
|
|
raise
|
||
|
|
else:
|
||
|
|
return self._ws_response_class(reader,
|
||
|
|
writer,
|
||
|
|
protocol,
|
||
|
|
resp,
|
||
|
|
timeout,
|
||
|
|
autoclose,
|
||
|
|
autoping,
|
||
|
|
self._loop,
|
||
|
|
receive_timeout=receive_timeout,
|
||
|
|
heartbeat=heartbeat,
|
||
|
|
compress=compress,
|
||
|
|
client_notakeover=notakeover)
|
||
|
|
|
||
|
|
def _prepare_headers(
|
||
|
|
self,
|
||
|
|
headers: Optional[LooseHeaders]) -> 'CIMultiDict[str]':
|
||
|
|
""" Add default headers and transform it to CIMultiDict
|
||
|
|
"""
|
||
|
|
# Convert headers to MultiDict
|
||
|
|
result = CIMultiDict(self._default_headers)
|
||
|
|
if headers:
|
||
|
|
if not isinstance(headers, (MultiDictProxy, MultiDict)):
|
||
|
|
headers = CIMultiDict(headers)
|
||
|
|
added_names = set() # type: Set[str]
|
||
|
|
for key, value in headers.items():
|
||
|
|
if key in added_names:
|
||
|
|
result.add(key, value)
|
||
|
|
else:
|
||
|
|
result[key] = value
|
||
|
|
added_names.add(key)
|
||
|
|
return result
|
||
|
|
|
||
|
|
def get(self, url: StrOrURL, *, allow_redirects: bool=True,
|
||
|
|
**kwargs: Any) -> '_RequestContextManager':
|
||
|
|
"""Perform HTTP GET request."""
|
||
|
|
return _RequestContextManager(
|
||
|
|
self._request(hdrs.METH_GET, url,
|
||
|
|
allow_redirects=allow_redirects,
|
||
|
|
**kwargs))
|
||
|
|
|
||
|
|
def options(self, url: StrOrURL, *, allow_redirects: bool=True,
|
||
|
|
**kwargs: Any) -> '_RequestContextManager':
|
||
|
|
"""Perform HTTP OPTIONS request."""
|
||
|
|
return _RequestContextManager(
|
||
|
|
self._request(hdrs.METH_OPTIONS, url,
|
||
|
|
allow_redirects=allow_redirects,
|
||
|
|
**kwargs))
|
||
|
|
|
||
|
|
def head(self, url: StrOrURL, *, allow_redirects: bool=False,
|
||
|
|
**kwargs: Any) -> '_RequestContextManager':
|
||
|
|
"""Perform HTTP HEAD request."""
|
||
|
|
return _RequestContextManager(
|
||
|
|
self._request(hdrs.METH_HEAD, url,
|
||
|
|
allow_redirects=allow_redirects,
|
||
|
|
**kwargs))
|
||
|
|
|
||
|
|
def post(self, url: StrOrURL,
|
||
|
|
*, data: Any=None, **kwargs: Any) -> '_RequestContextManager':
|
||
|
|
"""Perform HTTP POST request."""
|
||
|
|
return _RequestContextManager(
|
||
|
|
self._request(hdrs.METH_POST, url,
|
||
|
|
data=data,
|
||
|
|
**kwargs))
|
||
|
|
|
||
|
|
def put(self, url: StrOrURL,
|
||
|
|
*, data: Any=None, **kwargs: Any) -> '_RequestContextManager':
|
||
|
|
"""Perform HTTP PUT request."""
|
||
|
|
return _RequestContextManager(
|
||
|
|
self._request(hdrs.METH_PUT, url,
|
||
|
|
data=data,
|
||
|
|
**kwargs))
|
||
|
|
|
||
|
|
def patch(self, url: StrOrURL,
|
||
|
|
*, data: Any=None, **kwargs: Any) -> '_RequestContextManager':
|
||
|
|
"""Perform HTTP PATCH request."""
|
||
|
|
return _RequestContextManager(
|
||
|
|
self._request(hdrs.METH_PATCH, url,
|
||
|
|
data=data,
|
||
|
|
**kwargs))
|
||
|
|
|
||
|
|
def delete(self, url: StrOrURL, **kwargs: Any) -> '_RequestContextManager':
|
||
|
|
"""Perform HTTP DELETE request."""
|
||
|
|
return _RequestContextManager(
|
||
|
|
self._request(hdrs.METH_DELETE, url,
|
||
|
|
**kwargs))
|
||
|
|
|
||
|
|
async def close(self) -> None:
|
||
|
|
"""Close underlying connector.
|
||
|
|
|
||
|
|
Release all acquired resources.
|
||
|
|
"""
|
||
|
|
if not self.closed:
|
||
|
|
if self._connector is not None and self._connector_owner:
|
||
|
|
await self._connector.close()
|
||
|
|
self._connector = None
|
||
|
|
|
||
|
|
@property
|
||
|
|
def closed(self) -> bool:
|
||
|
|
"""Is client session closed.
|
||
|
|
|
||
|
|
A readonly property.
|
||
|
|
"""
|
||
|
|
return self._connector is None or self._connector.closed
|
||
|
|
|
||
|
|
@property
|
||
|
|
def connector(self) -> Optional[BaseConnector]:
|
||
|
|
"""Connector instance used for the session."""
|
||
|
|
return self._connector
|
||
|
|
|
||
|
|
@property
|
||
|
|
def cookie_jar(self) -> AbstractCookieJar:
|
||
|
|
"""The session cookies."""
|
||
|
|
return self._cookie_jar
|
||
|
|
|
||
|
|
@property
|
||
|
|
def version(self) -> Tuple[int, int]:
|
||
|
|
"""The session HTTP protocol version."""
|
||
|
|
return self._version
|
||
|
|
|
||
|
|
@property
|
||
|
|
def requote_redirect_url(self) -> bool:
|
||
|
|
"""Do URL requoting on redirection handling."""
|
||
|
|
return self._requote_redirect_url
|
||
|
|
|
||
|
|
@requote_redirect_url.setter
|
||
|
|
def requote_redirect_url(self, val: bool) -> None:
|
||
|
|
"""Do URL requoting on redirection handling."""
|
||
|
|
warnings.warn("session.requote_redirect_url modification "
|
||
|
|
"is deprecated #2778",
|
||
|
|
DeprecationWarning,
|
||
|
|
stacklevel=2)
|
||
|
|
self._requote_redirect_url = val
|
||
|
|
|
||
|
|
@property
|
||
|
|
def loop(self) -> asyncio.AbstractEventLoop:
|
||
|
|
"""Session's loop."""
|
||
|
|
warnings.warn("client.loop property is deprecated",
|
||
|
|
DeprecationWarning,
|
||
|
|
stacklevel=2)
|
||
|
|
return self._loop
|
||
|
|
|
||
|
|
def detach(self) -> None:
|
||
|
|
"""Detach connector from session without closing the former.
|
||
|
|
|
||
|
|
Session is switched to closed state anyway.
|
||
|
|
"""
|
||
|
|
self._connector = None
|
||
|
|
|
||
|
|
def __enter__(self) -> None:
|
||
|
|
raise TypeError("Use async with instead")
|
||
|
|
|
||
|
|
def __exit__(self,
|
||
|
|
exc_type: Optional[Type[BaseException]],
|
||
|
|
exc_val: Optional[BaseException],
|
||
|
|
exc_tb: Optional[TracebackType]) -> None:
|
||
|
|
# __exit__ should exist in pair with __enter__ but never executed
|
||
|
|
pass # pragma: no cover
|
||
|
|
|
||
|
|
async def __aenter__(self) -> 'ClientSession':
|
||
|
|
return self
|
||
|
|
|
||
|
|
async def __aexit__(self,
|
||
|
|
exc_type: Optional[Type[BaseException]],
|
||
|
|
exc_val: Optional[BaseException],
|
||
|
|
exc_tb: Optional[TracebackType]) -> None:
|
||
|
|
await self.close()
|
||
|
|
|
||
|
|
|
||
|
|
class _BaseRequestContextManager(Coroutine[Any,
|
||
|
|
Any,
|
||
|
|
_RetType],
|
||
|
|
Generic[_RetType]):
|
||
|
|
|
||
|
|
__slots__ = ('_coro', '_resp')
|
||
|
|
|
||
|
|
def __init__(
|
||
|
|
self,
|
||
|
|
coro: Coroutine['asyncio.Future[Any]', None, _RetType]
|
||
|
|
) -> None:
|
||
|
|
self._coro = coro
|
||
|
|
|
||
|
|
def send(self, arg: None) -> 'asyncio.Future[Any]':
|
||
|
|
return self._coro.send(arg)
|
||
|
|
|
||
|
|
def throw(self, arg: BaseException) -> None: # type: ignore
|
||
|
|
self._coro.throw(arg) # type: ignore
|
||
|
|
|
||
|
|
def close(self) -> None:
|
||
|
|
return self._coro.close()
|
||
|
|
|
||
|
|
def __await__(self) -> Generator[Any, None, _RetType]:
|
||
|
|
ret = self._coro.__await__()
|
||
|
|
return ret
|
||
|
|
|
||
|
|
def __iter__(self) -> Generator[Any, None, _RetType]:
|
||
|
|
return self.__await__()
|
||
|
|
|
||
|
|
async def __aenter__(self) -> _RetType:
|
||
|
|
self._resp = await self._coro
|
||
|
|
return self._resp
|
||
|
|
|
||
|
|
|
||
|
|
class _RequestContextManager(_BaseRequestContextManager[ClientResponse]):
|
||
|
|
async def __aexit__(self,
|
||
|
|
exc_type: Optional[Type[BaseException]],
|
||
|
|
exc: Optional[BaseException],
|
||
|
|
tb: Optional[TracebackType]) -> None:
|
||
|
|
# We're basing behavior on the exception as it can be caused by
|
||
|
|
# user code unrelated to the status of the connection. If you
|
||
|
|
# would like to close a connection you must do that
|
||
|
|
# explicitly. Otherwise connection error handling should kick in
|
||
|
|
# and close/recycle the connection as required.
|
||
|
|
self._resp.release()
|
||
|
|
|
||
|
|
|
||
|
|
class _WSRequestContextManager(_BaseRequestContextManager[
|
||
|
|
ClientWebSocketResponse]):
|
||
|
|
async def __aexit__(self,
|
||
|
|
exc_type: Optional[Type[BaseException]],
|
||
|
|
exc: Optional[BaseException],
|
||
|
|
tb: Optional[TracebackType]) -> None:
|
||
|
|
await self._resp.close()
|
||
|
|
|
||
|
|
|
||
|
|
class _SessionRequestContextManager:
|
||
|
|
|
||
|
|
__slots__ = ('_coro', '_resp', '_session')
|
||
|
|
|
||
|
|
def __init__(self,
|
||
|
|
coro: Coroutine['asyncio.Future[Any]', None, ClientResponse],
|
||
|
|
session: ClientSession) -> None:
|
||
|
|
self._coro = coro
|
||
|
|
self._resp = None # type: Optional[ClientResponse]
|
||
|
|
self._session = session
|
||
|
|
|
||
|
|
async def __aenter__(self) -> ClientResponse:
|
||
|
|
self._resp = await self._coro
|
||
|
|
return self._resp
|
||
|
|
|
||
|
|
async def __aexit__(self,
|
||
|
|
exc_type: Optional[Type[BaseException]],
|
||
|
|
exc: Optional[BaseException],
|
||
|
|
tb: Optional[TracebackType]) -> None:
|
||
|
|
assert self._resp is not None
|
||
|
|
self._resp.close()
|
||
|
|
await self._session.close()
|
||
|
|
|
||
|
|
|
||
|
|
def request(
|
||
|
|
method: str,
|
||
|
|
url: StrOrURL, *,
|
||
|
|
params: Optional[Mapping[str, str]]=None,
|
||
|
|
data: Any=None,
|
||
|
|
json: Any=None,
|
||
|
|
headers: LooseHeaders=None,
|
||
|
|
skip_auto_headers: Optional[Iterable[str]]=None,
|
||
|
|
auth: Optional[BasicAuth]=None,
|
||
|
|
allow_redirects: bool=True,
|
||
|
|
max_redirects: int=10,
|
||
|
|
compress: Optional[str]=None,
|
||
|
|
chunked: Optional[bool]=None,
|
||
|
|
expect100: bool=False,
|
||
|
|
raise_for_status: Optional[bool]=None,
|
||
|
|
read_until_eof: bool=True,
|
||
|
|
proxy: Optional[StrOrURL]=None,
|
||
|
|
proxy_auth: Optional[BasicAuth]=None,
|
||
|
|
timeout: Union[ClientTimeout, object]=sentinel,
|
||
|
|
cookies: Optional[LooseCookies]=None,
|
||
|
|
version: HttpVersion=http.HttpVersion11,
|
||
|
|
connector: Optional[BaseConnector]=None,
|
||
|
|
loop: Optional[asyncio.AbstractEventLoop]=None
|
||
|
|
) -> _SessionRequestContextManager:
|
||
|
|
"""Constructs and sends a request. Returns response object.
|
||
|
|
method - HTTP method
|
||
|
|
url - request url
|
||
|
|
params - (optional) Dictionary or bytes to be sent in the query
|
||
|
|
string of the new request
|
||
|
|
data - (optional) Dictionary, bytes, or file-like object to
|
||
|
|
send in the body of the request
|
||
|
|
json - (optional) Any json compatible python object
|
||
|
|
headers - (optional) Dictionary of HTTP Headers to send with
|
||
|
|
the request
|
||
|
|
cookies - (optional) Dict object to send with the request
|
||
|
|
auth - (optional) BasicAuth named tuple represent HTTP Basic Auth
|
||
|
|
auth - aiohttp.helpers.BasicAuth
|
||
|
|
allow_redirects - (optional) If set to False, do not follow
|
||
|
|
redirects
|
||
|
|
version - Request HTTP version.
|
||
|
|
compress - Set to True if request has to be compressed
|
||
|
|
with deflate encoding.
|
||
|
|
chunked - Set to chunk size for chunked transfer encoding.
|
||
|
|
expect100 - Expect 100-continue response from server.
|
||
|
|
connector - BaseConnector sub-class instance to support
|
||
|
|
connection pooling.
|
||
|
|
read_until_eof - Read response until eof if response
|
||
|
|
does not have Content-Length header.
|
||
|
|
loop - Optional event loop.
|
||
|
|
timeout - Optional ClientTimeout settings structure, 5min
|
||
|
|
total timeout by default.
|
||
|
|
Usage::
|
||
|
|
>>> import aiohttp
|
||
|
|
>>> resp = await aiohttp.request('GET', 'http://python.org/')
|
||
|
|
>>> resp
|
||
|
|
<ClientResponse(python.org/) [200]>
|
||
|
|
>>> data = await resp.read()
|
||
|
|
"""
|
||
|
|
connector_owner = False
|
||
|
|
if connector is None:
|
||
|
|
connector_owner = True
|
||
|
|
connector = TCPConnector(loop=loop, force_close=True)
|
||
|
|
|
||
|
|
session = ClientSession(
|
||
|
|
loop=loop, cookies=cookies, version=version, timeout=timeout,
|
||
|
|
connector=connector, connector_owner=connector_owner)
|
||
|
|
|
||
|
|
return _SessionRequestContextManager(
|
||
|
|
session._request(method, url,
|
||
|
|
params=params,
|
||
|
|
data=data,
|
||
|
|
json=json,
|
||
|
|
headers=headers,
|
||
|
|
skip_auto_headers=skip_auto_headers,
|
||
|
|
auth=auth,
|
||
|
|
allow_redirects=allow_redirects,
|
||
|
|
max_redirects=max_redirects,
|
||
|
|
compress=compress,
|
||
|
|
chunked=chunked,
|
||
|
|
expect100=expect100,
|
||
|
|
raise_for_status=raise_for_status,
|
||
|
|
read_until_eof=read_until_eof,
|
||
|
|
proxy=proxy,
|
||
|
|
proxy_auth=proxy_auth,),
|
||
|
|
session)
|