forked from zaclys/searxng
[enh] record details exception per engine
add an new API /stats/errors
This commit is contained in:
Alexandre Flament
parent
6b5a578822
commit
1d0c368746
|
|
@ -134,16 +134,18 @@ The function ``def request(query, params):`` always returns the ``params``
|
|||
variable. Inside searx, the following paramters can be used to specify a search
|
||||
request:
|
||||
|
||||
============ =========== =========================================================
|
||||
argument type information
|
||||
============ =========== =========================================================
|
||||
url string requested url
|
||||
method string HTTP request method
|
||||
headers set HTTP header information
|
||||
data set HTTP data information (parsed if ``method != 'GET'``)
|
||||
cookies set HTTP cookies
|
||||
verify boolean Performing SSL-Validity check
|
||||
============ =========== =========================================================
|
||||
================== =========== ========================================================================
|
||||
argument type information
|
||||
================== =========== ========================================================================
|
||||
url string requested url
|
||||
method string HTTP request method
|
||||
headers set HTTP header information
|
||||
data set HTTP data information (parsed if ``method != 'GET'``)
|
||||
cookies set HTTP cookies
|
||||
verify boolean Performing SSL-Validity check
|
||||
max_redirects int maximum redirects, hard limit
|
||||
soft_max_redirects int maximum redirects, soft limit. Record an error but don't stop the engine
|
||||
================== =========== ========================================================================
|
||||
|
||||
|
||||
example code
|
||||
|
|
|
|||
|
|
@ -132,8 +132,9 @@ def load_engine(engine_data):
|
|||
lambda: engine._fetch_supported_languages(get(engine.supported_languages_url)))
|
||||
|
||||
engine.stats = {
|
||||
'sent_search_count': 0, # sent search
|
||||
'search_count': 0, # succesful search
|
||||
'result_count': 0,
|
||||
'search_count': 0,
|
||||
'engine_time': 0,
|
||||
'engine_time_count': 0,
|
||||
'score_count': 0,
|
||||
|
|
|
|||
|
|
@ -34,8 +34,45 @@ class SearxParameterException(SearxException):
|
|||
|
||||
|
||||
class SearxSettingsException(SearxException):
|
||||
"""Error while loading the settings"""
|
||||
|
||||
def __init__(self, message, filename):
|
||||
super().__init__(message)
|
||||
self.message = message
|
||||
self.filename = filename
|
||||
|
||||
|
||||
class SearxEngineException(SearxException):
|
||||
"""Error inside an engine"""
|
||||
|
||||
|
||||
class SearxXPathSyntaxException(SearxEngineException):
|
||||
"""Syntax error in a XPATH"""
|
||||
|
||||
def __init__(self, xpath_spec, message):
|
||||
super().__init__(str(xpath_spec) + " " + message)
|
||||
self.message = message
|
||||
# str(xpath_spec) to deal with str and XPath instance
|
||||
self.xpath_str = str(xpath_spec)
|
||||
|
||||
|
||||
class SearxEngineResponseException(SearxEngineException):
|
||||
"""Impossible to parse the result of an engine"""
|
||||
|
||||
|
||||
class SearxEngineAPIException(SearxEngineResponseException):
|
||||
"""The website has returned an application error"""
|
||||
|
||||
|
||||
class SearxEngineCaptchaException(SearxEngineResponseException):
|
||||
"""The website has returned a CAPTCHA"""
|
||||
|
||||
|
||||
class SearxEngineXPathException(SearxEngineResponseException):
|
||||
"""Error while getting the result of an XPath expression"""
|
||||
|
||||
def __init__(self, xpath_spec, message):
|
||||
super().__init__(str(xpath_spec) + " " + message)
|
||||
self.message = message
|
||||
# str(xpath_spec) to deal with str and XPath instance
|
||||
self.xpath_str = str(xpath_spec)
|
||||
|
|
|
|||
|
|
@ -0,0 +1,142 @@
|
|||
import typing
|
||||
import inspect
|
||||
import logging
|
||||
from json import JSONDecodeError
|
||||
from urllib.parse import urlparse
|
||||
from requests.exceptions import RequestException
|
||||
from searx.exceptions import SearxXPathSyntaxException, SearxEngineXPathException
|
||||
from searx import logger
|
||||
|
||||
|
||||
logging.basicConfig(level=logging.INFO)
|
||||
|
||||
errors_per_engines = {}
|
||||
|
||||
|
||||
class ErrorContext:
|
||||
|
||||
__slots__ = 'filename', 'function', 'line_no', 'code', 'exception_classname', 'log_message', 'log_parameters'
|
||||
|
||||
def __init__(self, filename, function, line_no, code, exception_classname, log_message, log_parameters):
|
||||
self.filename = filename
|
||||
self.function = function
|
||||
self.line_no = line_no
|
||||
self.code = code
|
||||
self.exception_classname = exception_classname
|
||||
self.log_message = log_message
|
||||
self.log_parameters = log_parameters
|
||||
|
||||
def __eq__(self, o) -> bool:
|
||||
if not isinstance(o, ErrorContext):
|
||||
return False
|
||||
return self.filename == o.filename and self.function == o.function and self.line_no == o.line_no\
|
||||
and self.code == o.code and self.exception_classname == o.exception_classname\
|
||||
and self.log_message == o.log_message and self.log_parameters == o.log_parameters
|
||||
|
||||
def __hash__(self):
|
||||
return hash((self.filename, self.function, self.line_no, self.code, self.exception_classname, self.log_message,
|
||||
self.log_parameters))
|
||||
|
||||
def __repr__(self):
|
||||
return "ErrorContext({!r}, {!r}, {!r}, {!r}, {!r}, {!r})".\
|
||||
format(self.filename, self.line_no, self.code, self.exception_classname, self.log_message,
|
||||
self.log_parameters)
|
||||
|
||||
|
||||
def add_error_context(engine_name: str, error_context: ErrorContext) -> None:
|
||||
errors_for_engine = errors_per_engines.setdefault(engine_name, {})
|
||||
errors_for_engine[error_context] = errors_for_engine.get(error_context, 0) + 1
|
||||
logger.debug('⚠️ %s: %s', engine_name, str(error_context))
|
||||
|
||||
|
||||
def get_trace(traces):
|
||||
previous_trace = traces[-1]
|
||||
for trace in reversed(traces):
|
||||
if trace.filename.endswith('searx/search.py'):
|
||||
if previous_trace.filename.endswith('searx/poolrequests.py'):
|
||||
return trace
|
||||
if previous_trace.filename.endswith('requests/models.py'):
|
||||
return trace
|
||||
return previous_trace
|
||||
previous_trace = trace
|
||||
return traces[-1]
|
||||
|
||||
|
||||
def get_hostname(exc: RequestException) -> typing.Optional[None]:
|
||||
url = exc.request.url
|
||||
if url is None and exc.response is not None:
|
||||
url = exc.response.url
|
||||
return urlparse(url).netloc
|
||||
|
||||
|
||||
def get_request_exception_messages(exc: RequestException)\
|
||||
-> typing.Tuple[typing.Optional[str], typing.Optional[str], typing.Optional[str]]:
|
||||
url = None
|
||||
status_code = None
|
||||
reason = None
|
||||
hostname = None
|
||||
if exc.request is not None:
|
||||
url = exc.request.url
|
||||
if url is None and exc.response is not None:
|
||||
url = exc.response.url
|
||||
if url is not None:
|
||||
hostname = str(urlparse(url).netloc)
|
||||
if exc.response is not None:
|
||||
status_code = str(exc.response.status_code)
|
||||
reason = exc.response.reason
|
||||
return (status_code, reason, hostname)
|
||||
|
||||
|
||||
def get_messages(exc, filename) -> typing.Tuple:
|
||||
if isinstance(exc, JSONDecodeError):
|
||||
return (exc.msg, )
|
||||
if isinstance(exc, TypeError):
|
||||
return (str(exc), )
|
||||
if isinstance(exc, ValueError) and 'lxml' in filename:
|
||||
return (str(exc), )
|
||||
if isinstance(exc, RequestException):
|
||||
return get_request_exception_messages(exc)
|
||||
if isinstance(exc, SearxXPathSyntaxException):
|
||||
return (exc.xpath_str, exc.message)
|
||||
if isinstance(exc, SearxEngineXPathException):
|
||||
return (exc.xpath_str, exc.message)
|
||||
return ()
|
||||
|
||||
|
||||
def get_exception_classname(exc: Exception) -> str:
|
||||
exc_class = exc.__class__
|
||||
exc_name = exc_class.__qualname__
|
||||
exc_module = exc_class.__module__
|
||||
if exc_module is None or exc_module == str.__class__.__module__:
|
||||
return exc_name
|
||||
return exc_module + '.' + exc_name
|
||||
|
||||
|
||||
def get_error_context(framerecords, exception_classname, log_message, log_parameters) -> ErrorContext:
|
||||
searx_frame = get_trace(framerecords)
|
||||
filename = searx_frame.filename
|
||||
function = searx_frame.function
|
||||
line_no = searx_frame.lineno
|
||||
code = searx_frame.code_context[0].strip()
|
||||
del framerecords
|
||||
return ErrorContext(filename, function, line_no, code, exception_classname, log_message, log_parameters)
|
||||
|
||||
|
||||
def record_exception(engine_name: str, exc: Exception) -> None:
|
||||
framerecords = inspect.trace()
|
||||
try:
|
||||
exception_classname = get_exception_classname(exc)
|
||||
log_parameters = get_messages(exc, framerecords[-1][1])
|
||||
error_context = get_error_context(framerecords, exception_classname, None, log_parameters)
|
||||
add_error_context(engine_name, error_context)
|
||||
finally:
|
||||
del framerecords
|
||||
|
||||
|
||||
def record_error(engine_name: str, log_message: str, log_parameters: typing.Optional[typing.Tuple] = None) -> None:
|
||||
framerecords = list(reversed(inspect.stack()[1:]))
|
||||
try:
|
||||
error_context = get_error_context(framerecords, None, log_message, log_parameters or ())
|
||||
add_error_context(engine_name, error_context)
|
||||
finally:
|
||||
del framerecords
|
||||
|
|
@ -4,6 +4,7 @@ from threading import RLock
|
|||
from urllib.parse import urlparse, unquote
|
||||
from searx import logger
|
||||
from searx.engines import engines
|
||||
from searx.metrology.error_recorder import record_error
|
||||
|
||||
|
||||
CONTENT_LEN_IGNORED_CHARS_REGEX = re.compile(r'[,;:!?\./\\\\ ()-_]', re.M | re.U)
|
||||
|
|
@ -161,6 +162,7 @@ class ResultContainer:
|
|||
|
||||
def extend(self, engine_name, results):
|
||||
standard_result_count = 0
|
||||
error_msgs = set()
|
||||
for result in list(results):
|
||||
result['engine'] = engine_name
|
||||
if 'suggestion' in result:
|
||||
|
|
@ -177,14 +179,21 @@ class ResultContainer:
|
|||
# standard result (url, title, content)
|
||||
if 'url' in result and not isinstance(result['url'], str):
|
||||
logger.debug('result: invalid URL: %s', str(result))
|
||||
error_msgs.add('invalid URL')
|
||||
elif 'title' in result and not isinstance(result['title'], str):
|
||||
logger.debug('result: invalid title: %s', str(result))
|
||||
error_msgs.add('invalid title')
|
||||
elif 'content' in result and not isinstance(result['content'], str):
|
||||
logger.debug('result: invalid content: %s', str(result))
|
||||
error_msgs.add('invalid content')
|
||||
else:
|
||||
self._merge_result(result, standard_result_count + 1)
|
||||
standard_result_count += 1
|
||||
|
||||
if len(error_msgs) > 0:
|
||||
for msg in error_msgs:
|
||||
record_error(engine_name, 'some results are invalids: ' + msg)
|
||||
|
||||
if engine_name in engines:
|
||||
with RLock():
|
||||
engines[engine_name].stats['search_count'] += 1
|
||||
|
|
|
|||
|
|
@ -20,6 +20,7 @@ import gc
|
|||
import threading
|
||||
from time import time
|
||||
from uuid import uuid4
|
||||
from urllib.parse import urlparse
|
||||
from _thread import start_new_thread
|
||||
|
||||
import requests.exceptions
|
||||
|
|
@ -31,6 +32,8 @@ from searx.utils import gen_useragent
|
|||
from searx.results import ResultContainer
|
||||
from searx import logger
|
||||
from searx.plugins import plugins
|
||||
from searx.exceptions import SearxEngineCaptchaException
|
||||
from searx.metrology.error_recorder import record_exception, record_error
|
||||
|
||||
|
||||
logger = logger.getChild('search')
|
||||
|
|
@ -120,6 +123,14 @@ def send_http_request(engine, request_params):
|
|||
if hasattr(engine, 'proxies'):
|
||||
request_args['proxies'] = requests_lib.get_proxies(engine.proxies)
|
||||
|
||||
# max_redirects
|
||||
max_redirects = request_params.get('max_redirects')
|
||||
if max_redirects:
|
||||
request_args['max_redirects'] = max_redirects
|
||||
|
||||
# soft_max_redirects
|
||||
soft_max_redirects = request_params.get('soft_max_redirects', max_redirects or 0)
|
||||
|
||||
# specific type of request (GET or POST)
|
||||
if request_params['method'] == 'GET':
|
||||
req = requests_lib.get
|
||||
|
|
@ -129,7 +140,23 @@ def send_http_request(engine, request_params):
|
|||
request_args['data'] = request_params['data']
|
||||
|
||||
# send the request
|
||||
return req(request_params['url'], **request_args)
|
||||
response = req(request_params['url'], **request_args)
|
||||
|
||||
# check HTTP status
|
||||
response.raise_for_status()
|
||||
|
||||
# check soft limit of the redirect count
|
||||
if len(response.history) > soft_max_redirects:
|
||||
# unexpected redirect : record an error
|
||||
# but the engine might still return valid results.
|
||||
status_code = str(response.status_code or '')
|
||||
reason = response.reason or ''
|
||||
hostname = str(urlparse(response.url or '').netloc)
|
||||
record_error(engine.name,
|
||||
'{} redirects, maximum: {}'.format(len(response.history), soft_max_redirects),
|
||||
(status_code, reason, hostname))
|
||||
|
||||
return response
|
||||
|
||||
|
||||
def search_one_http_request(engine, query, request_params):
|
||||
|
|
@ -183,8 +210,9 @@ def search_one_http_request_safe(engine_name, query, request_params, result_cont
|
|||
# update stats with the total HTTP time
|
||||
engine.stats['page_load_time'] += page_load_time
|
||||
engine.stats['page_load_count'] += 1
|
||||
|
||||
except Exception as e:
|
||||
record_exception(engine_name, e)
|
||||
|
||||
# Timing
|
||||
engine_time = time() - start_time
|
||||
page_load_time = requests_lib.get_time_for_thread()
|
||||
|
|
@ -195,23 +223,29 @@ def search_one_http_request_safe(engine_name, query, request_params, result_cont
|
|||
engine.stats['errors'] += 1
|
||||
|
||||
if (issubclass(e.__class__, requests.exceptions.Timeout)):
|
||||
result_container.add_unresponsive_engine(engine_name, 'timeout')
|
||||
result_container.add_unresponsive_engine(engine_name, 'HTTP timeout')
|
||||
# requests timeout (connect or read)
|
||||
logger.error("engine {0} : HTTP requests timeout"
|
||||
"(search duration : {1} s, timeout: {2} s) : {3}"
|
||||
.format(engine_name, engine_time, timeout_limit, e.__class__.__name__))
|
||||
requests_exception = True
|
||||
elif (issubclass(e.__class__, requests.exceptions.RequestException)):
|
||||
result_container.add_unresponsive_engine(engine_name, 'request exception')
|
||||
result_container.add_unresponsive_engine(engine_name, 'HTTP error')
|
||||
# other requests exception
|
||||
logger.exception("engine {0} : requests exception"
|
||||
"(search duration : {1} s, timeout: {2} s) : {3}"
|
||||
.format(engine_name, engine_time, timeout_limit, e))
|
||||
requests_exception = True
|
||||
elif (issubclass(e.__class__, SearxEngineCaptchaException)):
|
||||
result_container.add_unresponsive_engine(engine_name, 'CAPTCHA required')
|
||||
logger.exception('engine {0} : CAPTCHA')
|
||||
else:
|
||||
result_container.add_unresponsive_engine(engine_name, 'unexpected crash', str(e))
|
||||
result_container.add_unresponsive_engine(engine_name, 'unexpected crash')
|
||||
# others errors
|
||||
logger.exception('engine {0} : exception : {1}'.format(engine_name, e))
|
||||
else:
|
||||
if getattr(threading.current_thread(), '_timeout', False):
|
||||
record_error(engine_name, 'Timeout')
|
||||
|
||||
# suspend or not the engine if there are HTTP errors
|
||||
with threading.RLock():
|
||||
|
|
@ -255,12 +289,17 @@ def search_one_offline_request_safe(engine_name, query, request_params, result_c
|
|||
engine.stats['engine_time_count'] += 1
|
||||
|
||||
except ValueError as e:
|
||||
record_exception(engine_name, e)
|
||||
record_offline_engine_stats_on_error(engine, result_container, start_time)
|
||||
logger.exception('engine {0} : invalid input : {1}'.format(engine_name, e))
|
||||
except Exception as e:
|
||||
record_exception(engine_name, e)
|
||||
record_offline_engine_stats_on_error(engine, result_container, start_time)
|
||||
result_container.add_unresponsive_engine(engine_name, 'unexpected crash', str(e))
|
||||
logger.exception('engine {0} : exception : {1}'.format(engine_name, e))
|
||||
else:
|
||||
if getattr(threading.current_thread(), '_timeout', False):
|
||||
record_error(engine_name, 'Timeout')
|
||||
|
||||
|
||||
def search_one_request_safe(engine_name, query, request_params, result_container, start_time, timeout_limit):
|
||||
|
|
@ -278,6 +317,7 @@ def search_multiple_requests(requests, result_container, start_time, timeout_lim
|
|||
args=(engine_name, query, request_params, result_container, start_time, timeout_limit),
|
||||
name=search_id,
|
||||
)
|
||||
th._timeout = False
|
||||
th._engine_name = engine_name
|
||||
th.start()
|
||||
|
||||
|
|
@ -286,6 +326,7 @@ def search_multiple_requests(requests, result_container, start_time, timeout_lim
|
|||
remaining_time = max(0.0, timeout_limit - (time() - start_time))
|
||||
th.join(remaining_time)
|
||||
if th.is_alive():
|
||||
th._timeout = True
|
||||
result_container.add_unresponsive_engine(th._engine_name, 'timeout')
|
||||
logger.warning('engine timeout: {0}'.format(th._engine_name))
|
||||
|
||||
|
|
@ -385,6 +426,9 @@ class Search:
|
|||
request_params['category'] = engineref.category
|
||||
request_params['pageno'] = self.search_query.pageno
|
||||
|
||||
with threading.RLock():
|
||||
engine.stats['sent_search_count'] += 1
|
||||
|
||||
return request_params, engine.timeout
|
||||
|
||||
# do search-request
|
||||
|
|
|
|||
148
searx/utils.py
148
searx/utils.py
|
|
@ -10,7 +10,7 @@ from html.parser import HTMLParser
|
|||
from urllib.parse import urljoin, urlparse
|
||||
|
||||
from lxml import html
|
||||
from lxml.etree import XPath, _ElementStringResult, _ElementUnicodeResult
|
||||
from lxml.etree import ElementBase, XPath, XPathError, XPathSyntaxError, _ElementStringResult, _ElementUnicodeResult
|
||||
from babel.core import get_global
|
||||
|
||||
|
||||
|
|
@ -18,6 +18,7 @@ from searx import settings
|
|||
from searx.data import USER_AGENTS
|
||||
from searx.version import VERSION_STRING
|
||||
from searx.languages import language_codes
|
||||
from searx.exceptions import SearxXPathSyntaxException, SearxEngineXPathException
|
||||
from searx import logger
|
||||
|
||||
|
||||
|
|
@ -33,6 +34,13 @@ xpath_cache = dict()
|
|||
lang_to_lc_cache = dict()
|
||||
|
||||
|
||||
class NotSetClass:
|
||||
pass
|
||||
|
||||
|
||||
NOTSET = NotSetClass()
|
||||
|
||||
|
||||
def searx_useragent():
|
||||
"""Return the searx User Agent"""
|
||||
return 'searx/{searx_version} {suffix}'.format(
|
||||
|
|
@ -125,7 +133,7 @@ def html_to_text(html_str):
|
|||
return s.get_text()
|
||||
|
||||
|
||||
def extract_text(xpath_results):
|
||||
def extract_text(xpath_results, allow_none=False):
|
||||
"""Extract text from a lxml result
|
||||
|
||||
* if xpath_results is list, extract the text from each result and concat the list
|
||||
|
|
@ -133,22 +141,27 @@ def extract_text(xpath_results):
|
|||
( text_content() method from lxml )
|
||||
* if xpath_results is a string element, then it's already done
|
||||
"""
|
||||
if type(xpath_results) == list:
|
||||
if isinstance(xpath_results, list):
|
||||
# it's list of result : concat everything using recursive call
|
||||
result = ''
|
||||
for e in xpath_results:
|
||||
result = result + extract_text(e)
|
||||
return result.strip()
|
||||
elif type(xpath_results) in [_ElementStringResult, _ElementUnicodeResult]:
|
||||
# it's a string
|
||||
return ''.join(xpath_results)
|
||||
else:
|
||||
elif isinstance(xpath_results, ElementBase):
|
||||
# it's a element
|
||||
text = html.tostring(
|
||||
xpath_results, encoding='unicode', method='text', with_tail=False
|
||||
)
|
||||
text = text.strip().replace('\n', ' ')
|
||||
return ' '.join(text.split())
|
||||
elif isinstance(xpath_results, (_ElementStringResult, _ElementUnicodeResult, str, Number, bool)):
|
||||
return str(xpath_results)
|
||||
elif xpath_results is None and allow_none:
|
||||
return None
|
||||
elif xpath_results is None and not allow_none:
|
||||
raise ValueError('extract_text(None, allow_none=False)')
|
||||
else:
|
||||
raise ValueError('unsupported type')
|
||||
|
||||
|
||||
def normalize_url(url, base_url):
|
||||
|
|
@ -170,7 +183,7 @@ def normalize_url(url, base_url):
|
|||
>>> normalize_url('', 'https://example.com')
|
||||
'https://example.com/'
|
||||
>>> normalize_url('/test', '/path')
|
||||
raise Exception
|
||||
raise ValueError
|
||||
|
||||
Raises:
|
||||
* lxml.etree.ParserError
|
||||
|
|
@ -194,7 +207,7 @@ def normalize_url(url, base_url):
|
|||
|
||||
# add a / at this end of the url if there is no path
|
||||
if not parsed_url.netloc:
|
||||
raise Exception('Cannot parse url')
|
||||
raise ValueError('Cannot parse url')
|
||||
if not parsed_url.path:
|
||||
url += '/'
|
||||
|
||||
|
|
@ -224,17 +237,17 @@ def extract_url(xpath_results, base_url):
|
|||
>>> f('', 'https://example.com')
|
||||
raise lxml.etree.ParserError
|
||||
>>> searx.utils.extract_url([], 'https://example.com')
|
||||
raise Exception
|
||||
raise ValueError
|
||||
|
||||
Raises:
|
||||
* Exception
|
||||
* ValueError
|
||||
* lxml.etree.ParserError
|
||||
|
||||
Returns:
|
||||
* str: normalized URL
|
||||
"""
|
||||
if xpath_results == []:
|
||||
raise Exception('Empty url resultset')
|
||||
raise ValueError('Empty url resultset')
|
||||
|
||||
url = extract_text(xpath_results)
|
||||
return normalize_url(url, base_url)
|
||||
|
|
@ -258,7 +271,6 @@ def dict_subset(d, properties):
|
|||
|
||||
def list_get(a_list, index, default=None):
|
||||
"""Get element in list or default value
|
||||
|
||||
Examples:
|
||||
>>> list_get(['A', 'B', 'C'], 0)
|
||||
'A'
|
||||
|
|
@ -310,7 +322,7 @@ def get_torrent_size(filesize, filesize_multiplier):
|
|||
filesize = int(filesize * 1000 * 1000)
|
||||
elif filesize_multiplier == 'KiB':
|
||||
filesize = int(filesize * 1000)
|
||||
except:
|
||||
except ValueError:
|
||||
filesize = None
|
||||
|
||||
return filesize
|
||||
|
|
@ -506,20 +518,110 @@ def get_engine_from_settings(name):
|
|||
return {}
|
||||
|
||||
|
||||
def get_xpath(xpath_str):
|
||||
def get_xpath(xpath_spec):
|
||||
"""Return cached compiled XPath
|
||||
|
||||
There is no thread lock.
|
||||
Worst case scenario, xpath_str is compiled more than one time.
|
||||
|
||||
Args:
|
||||
* xpath_spec (str|lxml.etree.XPath): XPath as a str or lxml.etree.XPath
|
||||
|
||||
Returns:
|
||||
* result (bool, float, list, str): Results.
|
||||
|
||||
Raises:
|
||||
* TypeError: Raise when xpath_spec is neither a str nor a lxml.etree.XPath
|
||||
* SearxXPathSyntaxException: Raise when there is a syntax error in the XPath
|
||||
"""
|
||||
result = xpath_cache.get(xpath_str, None)
|
||||
if result is None:
|
||||
result = XPath(xpath_str)
|
||||
xpath_cache[xpath_str] = result
|
||||
if isinstance(xpath_spec, str):
|
||||
result = xpath_cache.get(xpath_spec, None)
|
||||
if result is None:
|
||||
try:
|
||||
result = XPath(xpath_spec)
|
||||
except XPathSyntaxError as e:
|
||||
raise SearxXPathSyntaxException(xpath_spec, str(e.msg))
|
||||
xpath_cache[xpath_spec] = result
|
||||
return result
|
||||
|
||||
if isinstance(xpath_spec, XPath):
|
||||
return xpath_spec
|
||||
|
||||
raise TypeError('xpath_spec must be either a str or a lxml.etree.XPath')
|
||||
|
||||
|
||||
def eval_xpath(element, xpath_spec):
|
||||
"""Equivalent of element.xpath(xpath_str) but compile xpath_str once for all.
|
||||
See https://lxml.de/xpathxslt.html#xpath-return-values
|
||||
|
||||
Args:
|
||||
* element (ElementBase): [description]
|
||||
* xpath_spec (str|lxml.etree.XPath): XPath as a str or lxml.etree.XPath
|
||||
|
||||
Returns:
|
||||
* result (bool, float, list, str): Results.
|
||||
|
||||
Raises:
|
||||
* TypeError: Raise when xpath_spec is neither a str nor a lxml.etree.XPath
|
||||
* SearxXPathSyntaxException: Raise when there is a syntax error in the XPath
|
||||
* SearxEngineXPathException: Raise when the XPath can't be evaluated.
|
||||
"""
|
||||
xpath = get_xpath(xpath_spec)
|
||||
try:
|
||||
return xpath(element)
|
||||
except XPathError as e:
|
||||
arg = ' '.join([str(i) for i in e.args])
|
||||
raise SearxEngineXPathException(xpath_spec, arg)
|
||||
|
||||
|
||||
def eval_xpath_list(element, xpath_spec, min_len=None):
|
||||
"""Same as eval_xpath, check if the result is a list
|
||||
|
||||
Args:
|
||||
* element (ElementBase): [description]
|
||||
* xpath_spec (str|lxml.etree.XPath): XPath as a str or lxml.etree.XPath
|
||||
* min_len (int, optional): [description]. Defaults to None.
|
||||
|
||||
Raises:
|
||||
* TypeError: Raise when xpath_spec is neither a str nor a lxml.etree.XPath
|
||||
* SearxXPathSyntaxException: Raise when there is a syntax error in the XPath
|
||||
* SearxEngineXPathException: raise if the result is not a list
|
||||
|
||||
Returns:
|
||||
* result (bool, float, list, str): Results.
|
||||
"""
|
||||
result = eval_xpath(element, xpath_spec)
|
||||
if not isinstance(result, list):
|
||||
raise SearxEngineXPathException(xpath_spec, 'the result is not a list')
|
||||
if min_len is not None and min_len > len(result):
|
||||
raise SearxEngineXPathException(xpath_spec, 'len(xpath_str) < ' + str(min_len))
|
||||
return result
|
||||
|
||||
|
||||
def eval_xpath(element, xpath_str):
|
||||
"""Equivalent of element.xpath(xpath_str) but compile xpath_str once for all."""
|
||||
xpath = get_xpath(xpath_str)
|
||||
return xpath(element)
|
||||
def eval_xpath_getindex(elements, xpath_spec, index, default=NOTSET):
|
||||
"""Call eval_xpath_list then get one element using the index parameter.
|
||||
If the index does not exist, either aise an exception is default is not set,
|
||||
other return the default value (can be None).
|
||||
|
||||
Args:
|
||||
* elements (ElementBase): lxml element to apply the xpath.
|
||||
* xpath_spec (str|lxml.etree.XPath): XPath as a str or lxml.etree.XPath.
|
||||
* index (int): index to get
|
||||
* default (Object, optional): Defaults if index doesn't exist.
|
||||
|
||||
Raises:
|
||||
* TypeError: Raise when xpath_spec is neither a str nor a lxml.etree.XPath
|
||||
* SearxXPathSyntaxException: Raise when there is a syntax error in the XPath
|
||||
* SearxEngineXPathException: if the index is not found. Also see eval_xpath.
|
||||
|
||||
Returns:
|
||||
* result (bool, float, list, str): Results.
|
||||
"""
|
||||
result = eval_xpath_list(elements, xpath_spec)
|
||||
if index >= -len(result) and index < len(result):
|
||||
return result[index]
|
||||
if default == NOTSET:
|
||||
# raise an SearxEngineXPathException instead of IndexError
|
||||
# to record xpath_spec
|
||||
raise SearxEngineXPathException(xpath_spec, 'index ' + str(index) + ' not found')
|
||||
return default
|
||||
|
|
|
|||
|
|
@ -79,6 +79,7 @@ from searx.plugins.oa_doi_rewrite import get_doi_resolver
|
|||
from searx.preferences import Preferences, ValidationException, LANGUAGE_CODES
|
||||
from searx.answerers import answerers
|
||||
from searx.poolrequests import get_global_proxies
|
||||
from searx.metrology.error_recorder import errors_per_engines
|
||||
|
||||
|
||||
# serve pages with HTTP/1.1
|
||||
|
|
@ -943,6 +944,34 @@ def stats():
|
|||
)
|
||||
|
||||
|
||||
@app.route('/stats/errors', methods=['GET'])
|
||||
def stats_errors():
|
||||
result = {}
|
||||
engine_names = list(errors_per_engines.keys())
|
||||
engine_names.sort()
|
||||
for engine_name in engine_names:
|
||||
error_stats = errors_per_engines[engine_name]
|
||||
sent_search_count = max(engines[engine_name].stats['sent_search_count'], 1)
|
||||
sorted_context_count_list = sorted(error_stats.items(), key=lambda context_count: context_count[1])
|
||||
r = []
|
||||
percentage_sum = 0
|
||||
for context, count in sorted_context_count_list:
|
||||
percentage = round(20 * count / sent_search_count) * 5
|
||||
percentage_sum += percentage
|
||||
r.append({
|
||||
'filename': context.filename,
|
||||
'function': context.function,
|
||||
'line_no': context.line_no,
|
||||
'code': context.code,
|
||||
'exception_classname': context.exception_classname,
|
||||
'log_message': context.log_message,
|
||||
'log_parameters': context.log_parameters,
|
||||
'percentage': percentage,
|
||||
})
|
||||
result[engine_name] = sorted(r, reverse=True, key=lambda d: d['percentage'])
|
||||
return jsonify(result)
|
||||
|
||||
|
||||
@app.route('/robots.txt', methods=['GET'])
|
||||
def robots():
|
||||
return Response("""User-agent: *
|
||||
|
|
|
|||
|
|
@ -3,6 +3,7 @@ import lxml.etree
|
|||
from lxml import html
|
||||
|
||||
from searx.testing import SearxTestCase
|
||||
from searx.exceptions import SearxXPathSyntaxException, SearxEngineXPathException
|
||||
from searx import utils
|
||||
|
||||
|
||||
|
|
@ -57,8 +58,16 @@ class TestUtils(SearxTestCase):
|
|||
dom = html.fromstring(html_str)
|
||||
self.assertEqual(utils.extract_text(dom), 'Test text')
|
||||
self.assertEqual(utils.extract_text(dom.xpath('//span')), 'Test text')
|
||||
self.assertEqual(utils.extract_text(dom.xpath('//span/text()')), 'Test text')
|
||||
self.assertEqual(utils.extract_text(dom.xpath('count(//span)')), '3.0')
|
||||
self.assertEqual(utils.extract_text(dom.xpath('boolean(//span)')), 'True')
|
||||
self.assertEqual(utils.extract_text(dom.xpath('//img/@src')), 'test.jpg')
|
||||
self.assertEqual(utils.extract_text(dom.xpath('//unexistingtag')), '')
|
||||
self.assertEqual(utils.extract_text(None, allow_none=True), None)
|
||||
with self.assertRaises(ValueError):
|
||||
utils.extract_text(None)
|
||||
with self.assertRaises(ValueError):
|
||||
utils.extract_text({})
|
||||
|
||||
def test_extract_url(self):
|
||||
def f(html_str, search_url):
|
||||
|
|
@ -136,3 +145,84 @@ class TestHTMLTextExtractor(SearxTestCase):
|
|||
text = '<p><b>Lorem ipsum</i>dolor sit amet</p>'
|
||||
with self.assertRaises(utils.HTMLTextExtractorException):
|
||||
self.html_text_extractor.feed(text)
|
||||
|
||||
|
||||
class TestXPathUtils(SearxTestCase):
|
||||
|
||||
TEST_DOC = """<ul>
|
||||
<li>Text in <b>bold</b> and <i>italic</i> </li>
|
||||
<li>Another <b>text</b> <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAUEBAAAACwAAAAAAQABAAACAkQBADs="></li>
|
||||
</ul>"""
|
||||
|
||||
def test_get_xpath_cache(self):
|
||||
xp1 = utils.get_xpath('//a')
|
||||
xp2 = utils.get_xpath('//div')
|
||||
xp3 = utils.get_xpath('//a')
|
||||
|
||||
self.assertEqual(id(xp1), id(xp3))
|
||||
self.assertNotEqual(id(xp1), id(xp2))
|
||||
|
||||
def test_get_xpath_type(self):
|
||||
utils.get_xpath(lxml.etree.XPath('//a'))
|
||||
|
||||
with self.assertRaises(TypeError):
|
||||
utils.get_xpath([])
|
||||
|
||||
def test_get_xpath_invalid(self):
|
||||
invalid_xpath = '//a[0].text'
|
||||
with self.assertRaises(SearxXPathSyntaxException) as context:
|
||||
utils.get_xpath(invalid_xpath)
|
||||
|
||||
self.assertEqual(context.exception.message, 'Invalid expression')
|
||||
self.assertEqual(context.exception.xpath_str, invalid_xpath)
|
||||
|
||||
def test_eval_xpath_unregistered_function(self):
|
||||
doc = html.fromstring(TestXPathUtils.TEST_DOC)
|
||||
|
||||
invalid_function_xpath = 'int(//a)'
|
||||
with self.assertRaises(SearxEngineXPathException) as context:
|
||||
utils.eval_xpath(doc, invalid_function_xpath)
|
||||
|
||||
self.assertEqual(context.exception.message, 'Unregistered function')
|
||||
self.assertEqual(context.exception.xpath_str, invalid_function_xpath)
|
||||
|
||||
def test_eval_xpath(self):
|
||||
doc = html.fromstring(TestXPathUtils.TEST_DOC)
|
||||
|
||||
self.assertEqual(utils.eval_xpath(doc, '//p'), [])
|
||||
self.assertEqual(utils.eval_xpath(doc, '//i/text()'), ['italic'])
|
||||
self.assertEqual(utils.eval_xpath(doc, 'count(//i)'), 1.0)
|
||||
|
||||
def test_eval_xpath_list(self):
|
||||
doc = html.fromstring(TestXPathUtils.TEST_DOC)
|
||||
|
||||
# check a not empty list
|
||||
self.assertEqual(utils.eval_xpath_list(doc, '//i/text()'), ['italic'])
|
||||
|
||||
# check min_len parameter
|
||||
with self.assertRaises(SearxEngineXPathException) as context:
|
||||
utils.eval_xpath_list(doc, '//p', min_len=1)
|
||||
self.assertEqual(context.exception.message, 'len(xpath_str) < 1')
|
||||
self.assertEqual(context.exception.xpath_str, '//p')
|
||||
|
||||
def test_eval_xpath_getindex(self):
|
||||
doc = html.fromstring(TestXPathUtils.TEST_DOC)
|
||||
|
||||
# check index 0
|
||||
self.assertEqual(utils.eval_xpath_getindex(doc, '//i/text()', 0), 'italic')
|
||||
|
||||
# default is 'something'
|
||||
self.assertEqual(utils.eval_xpath_getindex(doc, '//i/text()', 1, default='something'), 'something')
|
||||
|
||||
# default is None
|
||||
self.assertEqual(utils.eval_xpath_getindex(doc, '//i/text()', 1, default=None), None)
|
||||
|
||||
# index not found
|
||||
with self.assertRaises(SearxEngineXPathException) as context:
|
||||
utils.eval_xpath_getindex(doc, '//i/text()', 1)
|
||||
self.assertEqual(context.exception.message, 'index 1 not found')
|
||||
|
||||
# not a list
|
||||
with self.assertRaises(SearxEngineXPathException) as context:
|
||||
utils.eval_xpath_getindex(doc, 'count(//i)', 1)
|
||||
self.assertEqual(context.exception.message, 'the result is not a list')
|
||||
|
|
|
|||
Loading…
Reference in New Issue