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[mod] debug mode: log HTTP requests with network name

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For example wikipedia requests use the logger name "searx.network.wikipedia"

Log is disable when searx_debug is False
This commit is contained in:
Alexandre Flament 2021-09-06 21:42:30 +02:00
parent 577998106a
commit 91a6d80e82
2 changed files with 44 additions and 14 deletions
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16
searx/network/client.py
View File

@ -194,7 +194,7 @@ def new_client(
# pylint: disable=too-many-arguments
enable_http, verify, enable_http2,
max_connections, max_keepalive_connections, keepalive_expiry,
proxies, local_address, retries, max_redirects ):
proxies, local_address, retries, max_redirects, hook_log_response ):
limit = httpx.Limits(
max_connections=max_connections,
max_keepalive_connections=max_keepalive_connections,
@ -221,7 +221,17 @@ def new_client(
mounts['http://'] = AsyncHTTPTransportNoHttp()
transport = get_transport(verify, enable_http2, local_address, None, limit, retries)
return httpx.AsyncClient(transport=transport, mounts=mounts, max_redirects=max_redirects)
event_hooks = None
if hook_log_response:
event_hooks = {'response': [ hook_log_response ]}
return httpx.AsyncClient(
transport=transport,
mounts=mounts,
max_redirects=max_redirects,
event_hooks=event_hooks,
)
def get_loop():
@ -231,7 +241,7 @@ def get_loop():
def init():
# log
for logger_name in ('hpack.hpack', 'hpack.table'):
for logger_name in ('hpack.hpack', 'hpack.table', 'httpx._client'):
logging.getLogger(logger_name).setLevel(logging.WARNING)
# loop

42
searx/network/network.py
View File

@ -10,9 +10,11 @@ from itertools import cycle
import httpx
from searx import logger, searx_debug
from .client import new_client, get_loop
logger = logger.getChild('network')
DEFAULT_NAME = '__DEFAULT__'
NETWORKS = {}
# requests compatibility when reading proxy settings from settings.yml
@ -41,7 +43,7 @@ class Network:
'enable_http', 'verify', 'enable_http2',
'max_connections', 'max_keepalive_connections', 'keepalive_expiry',
'local_addresses', 'proxies', 'max_redirects', 'retries', 'retry_on_http_error',
'_local_addresses_cycle', '_proxies_cycle', '_clients'
'_local_addresses_cycle', '_proxies_cycle', '_clients', '_logger'
)
def __init__(
@ -57,7 +59,8 @@ class Network:
local_addresses=None,
retries=0,
retry_on_http_error=None,
max_redirects=30 ):
max_redirects=30,
logger_name=None):
self.enable_http = enable_http
self.verify = verify
@ -73,6 +76,7 @@ class Network:
self._local_addresses_cycle = self.get_ipaddress_cycle()
self._proxies_cycle = self.get_proxy_cycles()
self._clients = {}
self._logger = logger.getChild(logger_name) if logger_name else logger
self.check_parameters()
def check_parameters(self):
@ -130,12 +134,25 @@ class Network:
# pylint: disable=stop-iteration-return
yield tuple((pattern, next(proxy_url_cycle)) for pattern, proxy_url_cycle in proxy_settings.items())
async def log_response(self, response: httpx.Response):
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"
self._logger.debug(
f'HTTP Request: {request.method} {request.url} "{response_line}" ({elapsed_time})'
)
def get_client(self, verify=None, max_redirects=None):
verify = self.verify if verify is None else verify
max_redirects = self.max_redirects if max_redirects is None else max_redirects
local_address = next(self._local_addresses_cycle)
proxies = next(self._proxies_cycle) # is a tuple so it can be part of the key
key = (verify, max_redirects, local_address, proxies)
hook_log_response = self.log_response if searx_debug else None
if key not in self._clients or self._clients[key].is_closed:
self._clients[key] = new_client(
self.enable_http,
@ -147,7 +164,8 @@ class Network:
dict(proxies),
local_address,
0,
max_redirects
max_redirects,
hook_log_response
)
return self._clients[key]
@ -243,11 +261,13 @@ def initialize(settings_engines=None, settings_outgoing=None):
'retry_on_http_error': None,
}
def new_network(params):
def new_network(params, logger_name=None):
nonlocal default_params
result = {}
result.update(default_params)
result.update(params)
if logger_name:
result['logger_name'] = logger_name
return Network(**result)
def iter_networks():
@ -263,13 +283,13 @@ def initialize(settings_engines=None, settings_outgoing=None):
if NETWORKS:
done()
NETWORKS.clear()
NETWORKS[DEFAULT_NAME] = new_network({})
NETWORKS['ipv4'] = new_network({'local_addresses': '0.0.0.0'})
NETWORKS['ipv6'] = new_network({'local_addresses': '::'})
NETWORKS[DEFAULT_NAME] = new_network({}, logger_name='default')
NETWORKS['ipv4'] = new_network({'local_addresses': '0.0.0.0'}, logger_name='ipv4')
NETWORKS['ipv6'] = new_network({'local_addresses': '::'}, logger_name='ipv6')
# define networks from outgoing.networks
for network_name, network in settings_outgoing['networks'].items():
NETWORKS[network_name] = new_network(network)
NETWORKS[network_name] = new_network(network, logger_name=network_name)
# define networks from engines.[i].network (except references)
for engine_name, engine, network in iter_networks():
@ -280,9 +300,9 @@ def initialize(settings_engines=None, settings_outgoing=None):
network[attribute_name] = getattr(engine, attribute_name)
else:
network[attribute_name] = attribute_value
NETWORKS[engine_name] = new_network(network)
NETWORKS[engine_name] = new_network(network, logger_name=engine_name)
elif isinstance(network, dict):
NETWORKS[engine_name] = new_network(network)
NETWORKS[engine_name] = new_network(network, logger_name=engine_name)
# define networks from engines.[i].network (references)
for engine_name, engine, network in iter_networks():
@ -295,7 +315,7 @@ def initialize(settings_engines=None, settings_outgoing=None):
if 'image_proxy' not in NETWORKS:
image_proxy_params = default_params.copy()
image_proxy_params['enable_http2'] = False
NETWORKS['image_proxy'] = new_network(image_proxy_params)
NETWORKS['image_proxy'] = new_network(image_proxy_params, logger_name='image_proxy')
@atexit.register