diff options
Diffstat (limited to 'searx/network')
| -rw-r--r-- | searx/network/__init__.py | 8 | ||||
| -rw-r--r-- | searx/network/client.py | 105 | ||||
| -rw-r--r-- | searx/network/network.py | 13 |
3 files changed, 51 insertions, 75 deletions
diff --git a/searx/network/__init__.py b/searx/network/__init__.py index 21c4c27b5..260d4f105 100644 --- a/searx/network/__init__.py +++ b/searx/network/__init__.py @@ -43,24 +43,20 @@ THREADLOCAL = threading.local() """Thread-local data is data for thread specific values.""" def reset_time_for_thread(): - global THREADLOCAL THREADLOCAL.total_time = 0 def get_time_for_thread(): """returns thread's total time or None""" - global THREADLOCAL return THREADLOCAL.__dict__.get('total_time') def set_timeout_for_thread(timeout, start_time=None): - global THREADLOCAL THREADLOCAL.timeout = timeout THREADLOCAL.start_time = start_time def set_context_network_name(network_name): - global THREADLOCAL THREADLOCAL.network = get_network(network_name) @@ -69,13 +65,11 @@ def get_context_network(): If unset, return value from :py:obj:`get_network`. """ - global THREADLOCAL return THREADLOCAL.__dict__.get('network') or get_network() def request(method, url, **kwargs): """same as requests/requests/api.py request(...)""" - global THREADLOCAL time_before_request = default_timer() # timeout (httpx) @@ -172,7 +166,7 @@ async def stream_chunk_to_queue(network, queue, method, url, **kwargs): async for chunk in response.aiter_raw(65536): if len(chunk) > 0: queue.put(chunk) - except httpx.ResponseClosed: + except httpx.StreamClosed: # the response was queued before the exception. # the exception was raised on aiter_raw. # we do nothing here: in the finally block, None will be queued diff --git a/searx/network/client.py b/searx/network/client.py index e1abff05a..925c0fdd3 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) @@ -47,97 +51,93 @@ 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 def get_sslcontexts(proxy_url=None, cert=None, verify=True, trust_env=True, http2=False): - global SSLCONTEXTS key = (proxy_url, cert, verify, trust_env, http2) if key not in SSLCONTEXTS: SSLCONTEXTS[key] = httpx.create_ssl_context(cert, verify, trust_env, http2) 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): - global TRANSPORT_KWARGS # support socks5h (requests compatibility): # https://requests.readthedocs.io/en/master/user/advanced/#socks # socks5:// hostname is resolved on client side @@ -167,7 +167,6 @@ def get_transport_for_socks_proxy(verify, http2, local_address, proxy_url, limit def get_transport(verify, http2, local_address, proxy_url, limit, retries): - global TRANSPORT_KWARGS verify = get_sslcontexts(None, None, True, False, http2) if verify is True else verify return AsyncHTTPTransportFixed( # pylint: disable=protected-access @@ -181,15 +180,6 @@ def get_transport(verify, http2, local_address, proxy_url, limit, retries): ) -def iter_proxies(proxies): - # https://www.python-httpx.org/compatibility/#proxy-keys - if isinstance(proxies, str): - yield 'all://', proxies - elif isinstance(proxies, dict): - for pattern, proxy_url in proxies.items(): - yield pattern, proxy_url - - def new_client( # pylint: disable=too-many-arguments enable_http, verify, enable_http2, @@ -202,8 +192,8 @@ def new_client( ) # See https://www.python-httpx.org/advanced/#routing mounts = {} - for pattern, proxy_url in iter_proxies(proxies): - if not enable_http and (pattern == 'http' or pattern.startswith('http://')): + for pattern, proxy_url in proxies.items(): + if not enable_http and pattern.startswith('http://'): continue if (proxy_url.startswith('socks4://') or proxy_url.startswith('socks5://') @@ -235,7 +225,6 @@ def new_client( def get_loop(): - global LOOP return LOOP diff --git a/searx/network/network.py b/searx/network/network.py index 9954f0507..d58070f18 100644 --- a/searx/network/network.py +++ b/searx/network/network.py @@ -138,12 +138,10 @@ class Network: request = response.request status = f"{response.status_code} {response.reason_phrase}" response_line = f"{response.http_version} {status}" - if hasattr(response, "_elapsed"): - elapsed_time = f"{response.elapsed.total_seconds()} sec" - else: - elapsed_time = "stream" + content_type = response.headers.get("Content-Type") + content_type = f' ({content_type})' if content_type else '' self._logger.debug( - f'HTTP Request: {request.method} {request.url} "{response_line}" ({elapsed_time})' + f'HTTP Request: {request.method} {request.url} "{response_line}"{content_type}' ) def get_client(self, verify=None, max_redirects=None): @@ -225,12 +223,10 @@ class Network: @classmethod async def aclose_all(cls): - global NETWORKS await asyncio.gather(*[network.aclose() for network in NETWORKS.values()], return_exceptions=False) def get_network(name=None): - global NETWORKS return NETWORKS.get(name or DEFAULT_NAME) @@ -240,8 +236,6 @@ def initialize(settings_engines=None, settings_outgoing=None): from searx import settings # pylint: enable=import-outside-toplevel) - global NETWORKS - settings_engines = settings_engines or settings['engines'] settings_outgoing = settings_outgoing or settings['outgoing'] @@ -328,7 +322,6 @@ def done(): Note: since Network.aclose has to be async, it is not possible to call this method on Network.__del__ So Network.aclose is called here using atexit.register """ - global NETWORKS try: loop = get_loop() if loop: |