From 8e73438cbed62ca5c16f6d3c6ce7220b17550c4b Mon Sep 17 00:00:00 2001 From: Alexandre Flament Date: Sat, 7 Aug 2021 18:48:01 +0200 Subject: [upd] upgrade httpx 0.19.0 adjust searx.network module to the new internal API see https://github.com/encode/httpx/pull/1522 --- searx/network/client.py | 90 +++++++++++++++++++++++++------------------------ 1 file changed, 46 insertions(+), 44 deletions(-) (limited to 'searx/network/client.py') diff --git a/searx/network/client.py b/searx/network/client.py index e1abff05a..46edf9b6b 100644 --- a/searx/network/client.py +++ b/searx/network/client.py @@ -5,6 +5,7 @@ import asyncio import logging import threading + import httpcore import httpx from httpx_socks import AsyncProxyTransport @@ -26,19 +27,22 @@ else: uvloop.install() -logger = logger.getChild('searx.http.client') +logger = logger.getChild('searx.network.client') LOOP = None SSLCONTEXTS = {} TRANSPORT_KWARGS = { - 'backend': 'asyncio', + # use anyio : + # * https://github.com/encode/httpcore/issues/344 + # * https://github.com/encode/httpx/discussions/1511 + 'backend': 'anyio', 'trust_env': False, } # pylint: disable=protected-access async def close_connections_for_url( - connection_pool: httpcore.AsyncConnectionPool, - url: httpcore._utils.URL ): + connection_pool: httpcore.AsyncConnectionPool, url: httpcore._utils.URL +): origin = httpcore._utils.url_to_origin(url) logger.debug('Drop connections for %r', origin) @@ -47,7 +51,7 @@ async def close_connections_for_url( await connection_pool._remove_from_pool(connection) try: await connection.aclose() - except httpcore.NetworkError as e: + except httpx.NetworkError as e: logger.warning('Error closing an existing connection', exc_info=e) # pylint: enable=protected-access @@ -60,80 +64,78 @@ def get_sslcontexts(proxy_url=None, cert=None, verify=True, trust_env=True, http return SSLCONTEXTS[key] -class AsyncHTTPTransportNoHttp(httpcore.AsyncHTTPTransport): +class AsyncHTTPTransportNoHttp(httpx.AsyncHTTPTransport): """Block HTTP request""" - async def arequest(self, method, url, headers=None, stream=None, ext=None): - raise httpcore.UnsupportedProtocol("HTTP protocol is disabled") + async def handle_async_request( + self, method, url, headers=None, stream=None, extensions=None + ): + raise httpx.UnsupportedProtocol('HTTP protocol is disabled') class AsyncProxyTransportFixed(AsyncProxyTransport): """Fix httpx_socks.AsyncProxyTransport - Map python_socks exceptions to httpcore.ProxyError - - Map socket.gaierror to httpcore.ConnectError + Map python_socks exceptions to httpx.ProxyError / httpx.ConnectError - Note: keepalive_expiry is ignored, AsyncProxyTransport should call: - * self._keepalive_sweep() - * self._response_closed(self, connection) + Map socket.gaierror to httpx.ConnectError Note: AsyncProxyTransport inherit from AsyncConnectionPool - - Note: the API is going to change on httpx 0.18.0 - see https://github.com/encode/httpx/pull/1522 """ - async def arequest(self, method, url, headers=None, stream=None, ext=None): + async def handle_async_request( + self, method, url, headers=None, stream=None, extensions=None + ): retry = 2 while retry > 0: retry -= 1 try: - return await super().arequest(method, url, headers, stream, ext) + return await super().handle_async_request( + method, url, headers=headers, stream=stream, extensions=extensions + ) except (ProxyConnectionError, ProxyTimeoutError, ProxyError) as e: - raise httpcore.ProxyError(e) + raise httpx.ProxyError from e except OSError as e: # socket.gaierror when DNS resolution fails - raise httpcore.NetworkError(e) - except httpcore.RemoteProtocolError as e: - # in case of httpcore.RemoteProtocolError: Server disconnected - await close_connections_for_url(self, url) - logger.warning('httpcore.RemoteProtocolError: retry', exc_info=e) - # retry - except (httpcore.NetworkError, httpcore.ProtocolError) as e: - # httpcore.WriteError on HTTP/2 connection leaves a new opened stream + raise httpx.ConnectError from e + except httpx.NetworkError as e: + # httpx.WriteError on HTTP/2 connection leaves a new opened stream # then each new request creates a new stream and raise the same WriteError await close_connections_for_url(self, url) raise e + except httpx.RemoteProtocolError as e: + # in case of httpx.RemoteProtocolError: Server disconnected + await close_connections_for_url(self, url) + logger.warning('httpx.RemoteProtocolError: retry', exc_info=e) + # retry class AsyncHTTPTransportFixed(httpx.AsyncHTTPTransport): """Fix httpx.AsyncHTTPTransport""" - async def arequest(self, method, url, headers=None, stream=None, ext=None): + async def handle_async_request( + self, method, url, headers=None, stream=None, extensions=None + ): retry = 2 while retry > 0: retry -= 1 try: - return await super().arequest(method, url, headers, stream, ext) + return await super().handle_async_request( + method, url, headers=headers, stream=stream, extensions=extensions + ) except OSError as e: # socket.gaierror when DNS resolution fails - raise httpcore.ConnectError(e) - except httpcore.CloseError as e: - # httpcore.CloseError: [Errno 104] Connection reset by peer - # raised by _keepalive_sweep() - # from https://github.com/encode/httpcore/blob/4b662b5c42378a61e54d673b4c949420102379f5/httpcore/_backends/asyncio.py#L198 # pylint: disable=line-too-long + raise httpx.ConnectError from e + except httpx.NetworkError as e: + # httpx.WriteError on HTTP/2 connection leaves a new opened stream + # then each new request creates a new stream and raise the same WriteError await close_connections_for_url(self._pool, url) - logger.warning('httpcore.CloseError: retry', exc_info=e) - # retry - except httpcore.RemoteProtocolError as e: - # in case of httpcore.RemoteProtocolError: Server disconnected + raise e + except httpx.RemoteProtocolError as e: + # in case of httpx.RemoteProtocolError: Server disconnected await close_connections_for_url(self._pool, url) - logger.warning('httpcore.RemoteProtocolError: retry', exc_info=e) + logger.warning('httpx.RemoteProtocolError: retry', exc_info=e) # retry - except (httpcore.ProtocolError, httpcore.NetworkError) as e: - await close_connections_for_url(self._pool, url) - raise e def get_transport_for_socks_proxy(verify, http2, local_address, proxy_url, limit, retries): @@ -206,7 +208,7 @@ def new_client( if not enable_http and (pattern == 'http' or pattern.startswith('http://')): continue if (proxy_url.startswith('socks4://') - or proxy_url.startswith('socks5://') + or proxy_url.startswith('socks5://') or proxy_url.startswith('socks5h://') ): mounts[pattern] = get_transport_for_socks_proxy( -- cgit v1.2.3