mirror of
https://github.com/PiBrewing/craftbeerpi4.git
synced 2024-11-23 07:28:13 +01:00
1275 lines
43 KiB
Python
1275 lines
43 KiB
Python
"""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 (
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Any,
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Awaitable,
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Callable,
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Coroutine,
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FrozenSet,
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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 as ClientConnectionError,
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ClientConnectorCertificateError as ClientConnectorCertificateError,
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ClientConnectorError as ClientConnectorError,
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ClientConnectorSSLError as ClientConnectorSSLError,
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ClientError as ClientError,
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ClientHttpProxyError as ClientHttpProxyError,
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ClientOSError as ClientOSError,
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ClientPayloadError as ClientPayloadError,
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ClientProxyConnectionError as ClientProxyConnectionError,
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ClientResponseError as ClientResponseError,
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ClientSSLError as ClientSSLError,
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ContentTypeError as ContentTypeError,
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InvalidURL as InvalidURL,
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ServerConnectionError as ServerConnectionError,
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ServerDisconnectedError as ServerDisconnectedError,
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ServerFingerprintMismatch as ServerFingerprintMismatch,
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ServerTimeoutError as ServerTimeoutError,
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TooManyRedirects as TooManyRedirects,
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WSServerHandshakeError as WSServerHandshakeError,
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)
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from .client_reqrep import (
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ClientRequest as ClientRequest,
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ClientResponse as ClientResponse,
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Fingerprint as Fingerprint,
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RequestInfo as RequestInfo,
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_merge_ssl_params,
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)
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from .client_ws import ClientWebSocketResponse as ClientWebSocketResponse
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from .connector import (
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BaseConnector as BaseConnector,
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NamedPipeConnector as NamedPipeConnector,
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TCPConnector as TCPConnector,
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UnixConnector as UnixConnector,
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)
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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 WSHandshakeError, WSMessage, ws_ext_gen, ws_ext_parse
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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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"NamedPipeConnector",
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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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)
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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(auto_attribs=True, frozen=True, slots=True)
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class ClientTimeout:
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total: Optional[float] = None
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connect: Optional[float] = None
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sock_read: Optional[float] = None
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sock_connect: Optional[float] = None
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# pool_queue_timeout: Optional[float] = None
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# dns_resolution_timeout: Optional[float] = None
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# socket_connect_timeout: Optional[float] = None
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# connection_acquiring_timeout: Optional[float] = None
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# new_connection_timeout: Optional[float] = None
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# http_header_timeout: Optional[float] = None
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# response_body_timeout: Optional[float] = 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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[
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"_source_traceback",
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"_connector",
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"requote_redirect_url",
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"_loop",
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"_cookie_jar",
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"_connector_owner",
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"_default_auth",
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"_version",
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"_json_serialize",
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"_requote_redirect_url",
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"_timeout",
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"_raise_for_status",
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"_auto_decompress",
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"_trust_env",
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"_default_headers",
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"_skip_auto_headers",
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"_request_class",
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"_response_class",
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"_ws_response_class",
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"_trace_configs",
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"_read_bufsize",
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]
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)
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_source_traceback = None
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def __init__(
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self,
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*,
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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,
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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,
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read_bufsize: int = 2 ** 16,
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) -> 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("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: Optional[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(
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"read_timeout is deprecated, " "use timeout argument instead",
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DeprecationWarning,
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stacklevel=2,
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)
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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, connect=conn_timeout)
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warnings.warn(
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"conn_timeout is deprecated, " "use timeout argument instead",
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DeprecationWarning,
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stacklevel=2,
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)
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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(
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"read_timeout and timeout parameters "
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"conflict, please setup "
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"timeout.read"
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)
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if conn_timeout is not None:
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raise ValueError(
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"conn_timeout and timeout parameters "
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"conflict, please setup "
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"timeout.connect"
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)
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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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self._read_bufsize = read_bufsize
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# Convert to list of tuples
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if headers:
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real_headers = CIMultiDict(headers) # type: CIMultiDict[str]
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else:
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real_headers = CIMultiDict()
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self._default_headers = real_headers # type: CIMultiDict[str]
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if skip_auto_headers is not None:
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self._skip_auto_headers = frozenset([istr(i) 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(
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"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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)
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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(
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"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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)
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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(
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f"Unclosed client session {self!r}", ResourceWarning, **kwargs
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)
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context = {"client_session": self, "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(
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self, method: str, url: StrOrURL, **kwargs: Any
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) -> "_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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*,
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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: 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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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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proxy_auth: Optional[BasicAuth] = None,
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timeout: Union[ClientTimeout, object] = sentinel,
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verify_ssl: Optional[bool] = None,
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fingerprint: Optional[bytes] = None,
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ssl_context: Optional[SSLContext] = None,
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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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read_bufsize: Optional[int] = None,
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) -> ClientResponse:
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# NOTE: timeout clamps existing connect and read timeouts. We cannot
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# set the default to None because we need to detect if the user wants
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# to use the existing timeouts by setting timeout to None.
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if self.closed:
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raise RuntimeError("Session is closed")
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ssl = _merge_ssl_params(ssl, verify_ssl, ssl_context, fingerprint)
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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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)
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elif json is not None:
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data = payload.JsonPayload(json, dumps=self._json_serialize)
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if not isinstance(chunked, bool) and chunked is not None:
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warnings.warn("Chunk size is deprecated #1615", DeprecationWarning)
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redirects = 0
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history = []
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version = self._version
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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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try:
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url = URL(str_or_url)
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except ValueError as e:
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raise InvalidURL(str_or_url) from e
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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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if proxy is not None:
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try:
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proxy = URL(proxy)
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except ValueError as e:
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raise InvalidURL(proxy) from e
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if timeout is sentinel:
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real_timeout = self._timeout # type: ClientTimeout
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else:
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if not isinstance(timeout, ClientTimeout):
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real_timeout = ClientTimeout(total=timeout) # type: ignore
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else:
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real_timeout = timeout
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# timeout is cumulative for all request operations
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# (request, redirects, responses, data consuming)
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tm = TimeoutHandle(self._loop, real_timeout.total)
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handle = tm.start()
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if read_bufsize is None:
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read_bufsize = self._read_bufsize
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traces = [
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Trace(
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self,
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trace_config,
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trace_config.trace_config_ctx(trace_request_ctx=trace_request_ctx),
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)
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for trace_config in self._trace_configs
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]
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for trace in traces:
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await trace.send_request_start(method, url, headers)
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timer = tm.timer()
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try:
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with timer:
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while True:
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url, auth_from_url = strip_auth_from_url(url)
|
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if auth and auth_from_url:
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raise ValueError(
|
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"Cannot combine AUTH argument with "
|
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"credentials encoded in URL"
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)
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|
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if auth is None:
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auth = auth_from_url
|
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if auth is None:
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auth = self._default_auth
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# It would be confusing if we support explicit
|
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# Authorization header with auth argument
|
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if (
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headers is not None
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and auth is not None
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and hdrs.AUTHORIZATION in headers
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):
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raise ValueError(
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"Cannot combine AUTHORIZATION header "
|
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"with AUTH argument or credentials "
|
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"encoded in URL"
|
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)
|
|
|
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all_cookies = self._cookie_jar.filter_cookies(url)
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|
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if cookies is not None:
|
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tmp_cookie_jar = CookieJar()
|
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tmp_cookie_jar.update_cookies(cookies)
|
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req_cookies = tmp_cookie_jar.filter_cookies(url)
|
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if req_cookies:
|
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all_cookies.load(req_cookies)
|
|
|
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if proxy is not None:
|
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proxy = URL(proxy)
|
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elif self._trust_env:
|
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for scheme, proxy_info in proxies_from_env().items():
|
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if scheme == url.scheme:
|
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proxy = proxy_info.proxy
|
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proxy_auth = proxy_info.proxy_auth
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break
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|
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req = self._request_class(
|
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method,
|
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url,
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params=params,
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headers=headers,
|
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skip_auto_headers=skip_headers,
|
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data=data,
|
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cookies=all_cookies,
|
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auth=auth,
|
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version=version,
|
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compress=compress,
|
|
chunked=chunked,
|
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expect100=expect100,
|
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loop=self._loop,
|
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response_class=self._response_class,
|
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proxy=proxy,
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proxy_auth=proxy_auth,
|
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timer=timer,
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session=self,
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ssl=ssl,
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proxy_headers=proxy_headers,
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traces=traces,
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)
|
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|
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# connection timeout
|
|
try:
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with CeilTimeout(real_timeout.connect, loop=self._loop):
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assert self._connector is not None
|
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conn = await self._connector.connect(
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req, traces=traces, timeout=real_timeout
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)
|
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except asyncio.TimeoutError as exc:
|
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raise ServerTimeoutError(
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"Connection timeout " "to host {}".format(url)
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) from exc
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|
|
assert conn.transport is not None
|
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assert conn.protocol is not None
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conn.protocol.set_response_params(
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timer=timer,
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skip_payload=method.upper() == "HEAD",
|
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read_until_eof=read_until_eof,
|
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auto_decompress=self._auto_decompress,
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read_timeout=real_timeout.sock_read,
|
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read_bufsize=read_bufsize,
|
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)
|
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|
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try:
|
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try:
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resp = await req.send(conn)
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try:
|
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await resp.start(conn)
|
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except BaseException:
|
|
resp.close()
|
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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:
|
|
parsed_url = URL(
|
|
r_url, encoded=not self._requote_redirect_url
|
|
)
|
|
|
|
except ValueError as e:
|
|
raise InvalidURL(r_url) from e
|
|
|
|
scheme = parsed_url.scheme
|
|
if scheme not in ("http", "https", ""):
|
|
resp.close()
|
|
raise ValueError("Can redirect only to http or https")
|
|
elif not scheme:
|
|
parsed_url = url.join(parsed_url)
|
|
|
|
if url.origin() != parsed_url.origin():
|
|
auth = None
|
|
headers.pop(hdrs.AUTHORIZATION, None)
|
|
|
|
url = parsed_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: "websocket",
|
|
hdrs.CONNECTION: "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
|
|
r_key = resp.headers.get(hdrs.SEC_WEBSOCKET_ACCEPT, "")
|
|
match = base64.b64encode(hashlib.sha1(sec_key + WS_KEY).digest()).decode()
|
|
if r_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,
|
|
) from exc
|
|
else:
|
|
compress = 0
|
|
notakeover = False
|
|
|
|
conn = resp.connection
|
|
assert conn is not None
|
|
conn_proto = conn.protocol
|
|
assert conn_proto is not None
|
|
transport = conn.transport
|
|
assert transport is not None
|
|
reader = FlowControlDataQueue(
|
|
conn_proto, 2 ** 16, loop=self._loop
|
|
) # type: FlowControlDataQueue[WSMessage]
|
|
conn_proto.set_parser(WebSocketReader(reader, max_msg_size), reader)
|
|
writer = WebSocketWriter(
|
|
conn_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
|
|
|
|
@property
|
|
def timeout(self) -> Union[object, ClientTimeout]:
|
|
"""Timeout for the session."""
|
|
return self._timeout
|
|
|
|
@property
|
|
def headers(self) -> "CIMultiDict[str]":
|
|
"""The default headers of the client session."""
|
|
return self._default_headers
|
|
|
|
@property
|
|
def skip_auto_headers(self) -> FrozenSet[istr]:
|
|
"""Headers for which autogeneration should be skipped"""
|
|
return self._skip_auto_headers
|
|
|
|
@property
|
|
def auth(self) -> Optional[BasicAuth]:
|
|
"""An object that represents HTTP Basic Authorization"""
|
|
return self._default_auth
|
|
|
|
@property
|
|
def json_serialize(self) -> JSONEncoder:
|
|
"""Json serializer callable"""
|
|
return self._json_serialize
|
|
|
|
@property
|
|
def connector_owner(self) -> bool:
|
|
"""Should connector be closed on session closing"""
|
|
return self._connector_owner
|
|
|
|
@property
|
|
def raise_for_status(
|
|
self,
|
|
) -> Union[bool, Callable[[ClientResponse], Awaitable[None]]]:
|
|
"""
|
|
Should `ClientResponse.raise_for_status()`
|
|
be called for each response
|
|
"""
|
|
return self._raise_for_status
|
|
|
|
@property
|
|
def auto_decompress(self) -> bool:
|
|
"""Should the body response be automatically decompressed"""
|
|
return self._auto_decompress
|
|
|
|
@property
|
|
def trust_env(self) -> bool:
|
|
"""
|
|
Should get proxies information
|
|
from HTTP_PROXY / HTTPS_PROXY environment variables
|
|
or ~/.netrc file if present
|
|
"""
|
|
return self._trust_env
|
|
|
|
@property
|
|
def trace_configs(self) -> List[TraceConfig]:
|
|
"""A list of TraceConfig instances used for client tracing"""
|
|
return self._trace_configs
|
|
|
|
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)
|
|
|
|
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:
|
|
try:
|
|
self._resp = await self._coro
|
|
except BaseException:
|
|
await self._session.close()
|
|
raise
|
|
else:
|
|
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: Optional[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,
|
|
read_bufsize: Optional[int] = 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,
|
|
read_bufsize=read_bufsize,
|
|
),
|
|
session,
|
|
)
|