forked from zaclys/searxng
2a109d0a5f
render automatically adds these variables to the template context: * advanced_search * all_categories * categories before render was checking if the variable was already set but it is actually never set by the callers
1291 lines
47 KiB
Python
Executable File
1291 lines
47 KiB
Python
Executable File
#!/usr/bin/env python
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# SPDX-License-Identifier: AGPL-3.0-or-later
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# lint: pylint
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# pylint: disable=missing-function-docstring
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"""WebbApp
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"""
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import hashlib
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import hmac
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import json
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import os
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import sys
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from datetime import datetime, timedelta
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from timeit import default_timer
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from html import escape
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from io import StringIO
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import urllib
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from urllib.parse import urlencode
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import httpx
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from pygments import highlight
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from pygments.lexers import get_lexer_by_name
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from pygments.formatters import HtmlFormatter # pylint: disable=no-name-in-module
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import flask
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from flask import (
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Flask,
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request,
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render_template,
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url_for,
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Response,
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make_response,
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redirect,
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send_from_directory,
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)
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from flask.ctx import has_request_context
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from flask.json import jsonify
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from babel.support import Translations
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import flask_babel
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from flask_babel import (
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Babel,
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gettext,
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format_date,
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format_decimal,
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)
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from searx import logger
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from searx import brand
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from searx import (
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settings,
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searx_debug,
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)
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from searx.settings_defaults import OUTPUT_FORMATS
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from searx.exceptions import SearxParameterException
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from searx.engines import (
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categories,
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engines,
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engine_shortcuts,
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)
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from searx.webutils import (
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UnicodeWriter,
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highlight_content,
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get_static_files,
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get_result_templates,
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get_themes,
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prettify_url,
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new_hmac,
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is_flask_run_cmdline,
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)
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from searx.webadapter import (
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get_search_query_from_webapp,
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get_selected_categories,
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)
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from searx.utils import (
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html_to_text,
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gen_useragent,
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dict_subset,
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match_language,
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)
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from searx.version import VERSION_STRING
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from searx.query import RawTextQuery
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from searx.plugins import plugins
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from searx.plugins.oa_doi_rewrite import get_doi_resolver
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from searx.preferences import (
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Preferences,
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ValidationException,
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LANGUAGE_CODES,
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)
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from searx.answerers import answerers
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from searx.answerers import ask
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from searx.metrics import (
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get_engines_stats,
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get_engine_errors,
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get_reliabilities,
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histogram,
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counter,
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)
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from searx.flaskfix import patch_application
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# renaming names from searx imports ...
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from searx.autocomplete import search_autocomplete, backends as autocomplete_backends
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from searx.languages import language_codes as languages
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from searx.search import SearchWithPlugins, initialize as search_initialize
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from searx.network import stream as http_stream
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from searx.search.checker import get_result as checker_get_result
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from searx.settings_loader import get_default_settings_path
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logger = logger.getChild('webapp')
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# check secret_key
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if not searx_debug and settings['server']['secret_key'] == 'ultrasecretkey':
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logger.error('server.secret_key is not changed. Please use something else instead of ultrasecretkey.')
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sys.exit(1)
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# about static
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logger.debug('static directory is %s', settings['ui']['static_path'])
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static_files = get_static_files(settings['ui']['static_path'])
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# about templates
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logger.debug('templates directory is %s', settings['ui']['templates_path'])
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default_theme = settings['ui']['default_theme']
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templates_path = settings['ui']['templates_path']
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themes = get_themes(templates_path)
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result_templates = get_result_templates(templates_path)
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global_favicons = []
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for indice, theme in enumerate(themes):
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global_favicons.append([])
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theme_img_path = os.path.join(settings['ui']['static_path'], 'themes', theme, 'img', 'icons')
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for (dirpath, dirnames, filenames) in os.walk(theme_img_path):
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global_favicons[indice].extend(filenames)
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STATS_SORT_PARAMETERS = {
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'name': (False, 'name', ''),
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'score': (True, 'score', 0),
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'result_count': (True, 'result_count', 0),
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'time': (False, 'total', 0),
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'reliability': (False, 'reliability', 100),
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}
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# Flask app
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app = Flask(
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__name__,
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static_folder=settings['ui']['static_path'],
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template_folder=templates_path
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)
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app.jinja_env.trim_blocks = True
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app.jinja_env.lstrip_blocks = True
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app.jinja_env.add_extension('jinja2.ext.loopcontrols') # pylint: disable=no-member
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app.secret_key = settings['server']['secret_key']
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# see https://flask.palletsprojects.com/en/1.1.x/cli/
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# True if "FLASK_APP=searx/webapp.py FLASK_ENV=development flask run"
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flask_run_development = \
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os.environ.get("FLASK_APP") is not None\
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and os.environ.get("FLASK_ENV") == 'development'\
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and is_flask_run_cmdline()
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# True if reload feature is activated of werkzeug, False otherwise (including uwsgi, etc..)
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# __name__ != "__main__" if searx.webapp is imported (make test, make docs, uwsgi...)
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# see run() at the end of this file : searx_debug activates the reload feature.
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werkzeug_reloader = flask_run_development or (searx_debug and __name__ == "__main__")
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# initialize the engines except on the first run of the werkzeug server.
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if not werkzeug_reloader\
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or (werkzeug_reloader and os.environ.get("WERKZEUG_RUN_MAIN") == "true"):
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search_initialize(enable_checker=True)
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babel = Babel(app)
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rtl_locales = ['ar', 'arc', 'bcc', 'bqi', 'ckb', 'dv', 'fa', 'fa_IR', 'glk', 'he',
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'ku', 'mzn', 'pnb', 'ps', 'sd', 'ug', 'ur', 'yi']
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ui_locale_codes = [l.replace('_', '-') for l in settings['locales'].keys()]
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# used when translating category names
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_category_names = (gettext('files'),
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gettext('general'),
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gettext('music'),
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gettext('social media'),
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gettext('images'),
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gettext('videos'),
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gettext('it'),
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gettext('news'),
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gettext('map'),
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gettext('onions'),
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gettext('science'))
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#
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timeout_text = gettext('timeout')
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parsing_error_text = gettext('parsing error')
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http_protocol_error_text = gettext('HTTP protocol error')
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network_error_text = gettext('network error')
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exception_classname_to_text = {
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None: gettext('unexpected crash'),
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'timeout': timeout_text,
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'asyncio.TimeoutError': timeout_text,
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'httpx.TimeoutException': timeout_text,
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'httpx.ConnectTimeout': timeout_text,
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'httpx.ReadTimeout': timeout_text,
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'httpx.WriteTimeout': timeout_text,
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'httpx.HTTPStatusError': gettext('HTTP error'),
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'httpx.ConnectError': gettext("HTTP connection error"),
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'httpx.RemoteProtocolError': http_protocol_error_text,
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'httpx.LocalProtocolError': http_protocol_error_text,
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'httpx.ProtocolError': http_protocol_error_text,
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'httpx.ReadError': network_error_text,
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'httpx.WriteError': network_error_text,
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'httpx.ProxyError': gettext("proxy error"),
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'searx.exceptions.SearxEngineCaptchaException': gettext("CAPTCHA"),
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'searx.exceptions.SearxEngineTooManyRequestsException': gettext("too many requests"),
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'searx.exceptions.SearxEngineAccessDeniedException': gettext("access denied"),
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'searx.exceptions.SearxEngineAPIException': gettext("server API error"),
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'searx.exceptions.SearxEngineXPathException': parsing_error_text,
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'KeyError': parsing_error_text,
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'json.decoder.JSONDecodeError': parsing_error_text,
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'lxml.etree.ParserError': parsing_error_text,
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}
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_flask_babel_get_translations = flask_babel.get_translations
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# monkey patch for flask_babel.get_translations
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def _get_translations():
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if has_request_context() and request.form.get('use-translation') == 'oc':
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babel_ext = flask_babel.current_app.extensions['babel']
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return Translations.load(next(babel_ext.translation_directories), 'oc')
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return _flask_babel_get_translations()
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flask_babel.get_translations = _get_translations
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def _get_browser_or_settings_language(req, lang_list):
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for lang in req.headers.get("Accept-Language", "en").split(","):
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if ';' in lang:
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lang = lang.split(';')[0]
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if '-' in lang:
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lang_parts = lang.split('-')
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lang = "{}-{}".format(lang_parts[0], lang_parts[-1].upper())
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locale = match_language(lang, lang_list, fallback=None)
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if locale is not None:
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return locale
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return settings['search']['default_lang'] or 'en'
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@babel.localeselector
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def get_locale():
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if 'locale' in request.form\
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and request.form['locale'] in settings['locales']:
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# use locale from the form
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locale = request.form['locale']
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locale_source = 'form'
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elif request.preferences.get_value('locale') != '':
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# use locale from the preferences
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locale = request.preferences.get_value('locale')
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locale_source = 'preferences'
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else:
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# use local from the browser
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locale = _get_browser_or_settings_language(request, ui_locale_codes)
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locale = locale.replace('-', '_')
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locale_source = 'browser'
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# see _get_translations function
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# and https://github.com/searx/searx/pull/1863
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if locale == 'oc':
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request.form['use-translation'] = 'oc'
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locale = 'fr_FR'
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logger.debug(
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"%s uses locale `%s` from %s", urllib.parse.quote(request.url), locale, locale_source
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)
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return locale
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# code-highlighter
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@app.template_filter('code_highlighter')
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def code_highlighter(codelines, language=None):
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if not language:
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language = 'text'
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try:
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# find lexer by programing language
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lexer = get_lexer_by_name(language, stripall=True)
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except Exception as e: # pylint: disable=broad-except
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logger.exception(e, exc_info=True)
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# if lexer is not found, using default one
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lexer = get_lexer_by_name('text', stripall=True)
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html_code = ''
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tmp_code = ''
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last_line = None
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# parse lines
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for line, code in codelines:
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if not last_line:
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line_code_start = line
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# new codeblock is detected
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if last_line is not None and\
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last_line + 1 != line:
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# highlight last codepart
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formatter = HtmlFormatter(linenos='inline',
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linenostart=line_code_start,
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cssclass="code-highlight")
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html_code = html_code + highlight(tmp_code, lexer, formatter)
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# reset conditions for next codepart
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tmp_code = ''
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line_code_start = line
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# add codepart
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tmp_code += code + '\n'
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# update line
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last_line = line
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# highlight last codepart
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formatter = HtmlFormatter(linenos='inline', linenostart=line_code_start, cssclass="code-highlight")
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html_code = html_code + highlight(tmp_code, lexer, formatter)
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return html_code
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def get_current_theme_name(override=None):
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"""Returns theme name.
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Checks in this order:
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1. override
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2. cookies
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3. settings"""
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if override and (override in themes or override == '__common__'):
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return override
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theme_name = request.args.get('theme', request.preferences.get_value('theme'))
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if theme_name not in themes:
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theme_name = default_theme
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return theme_name
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def get_result_template(theme_name, template_name):
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themed_path = theme_name + '/result_templates/' + template_name
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if themed_path in result_templates:
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return themed_path
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return 'result_templates/' + template_name
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def url_for_theme(endpoint, override_theme=None, **values):
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if endpoint == 'static' and values.get('filename'):
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theme_name = get_current_theme_name(override=override_theme)
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filename_with_theme = "themes/{}/{}".format(theme_name, values['filename'])
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if filename_with_theme in static_files:
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values['filename'] = filename_with_theme
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url = url_for(endpoint, **values)
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return url
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def proxify(url):
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if url.startswith('//'):
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url = 'https:' + url
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if not settings.get('result_proxy'):
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return url
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url_params = dict(mortyurl=url.encode())
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if settings['result_proxy'].get('key'):
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url_params['mortyhash'] = hmac.new(settings['result_proxy']['key'],
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url.encode(),
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hashlib.sha256).hexdigest()
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return '{0}?{1}'.format(settings['result_proxy']['url'],
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urlencode(url_params))
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def image_proxify(url):
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if url.startswith('//'):
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url = 'https:' + url
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if not request.preferences.get_value('image_proxy'):
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return url
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if url.startswith('data:image/'):
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# 50 is an arbitrary number to get only the beginning of the image.
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partial_base64 = url[len('data:image/'):50].split(';')
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if len(partial_base64) == 2 \
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and partial_base64[0] in ['gif', 'png', 'jpeg', 'pjpeg', 'webp', 'tiff', 'bmp']\
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and partial_base64[1].startswith('base64,'):
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return url
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return None
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if settings.get('result_proxy'):
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return proxify(url)
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h = new_hmac(settings['server']['secret_key'], url.encode())
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return '{0}?{1}'.format(url_for('image_proxy'),
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urlencode(dict(url=url.encode(), h=h)))
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def get_translations():
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return {
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# when there is autocompletion
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'no_item_found': gettext('No item found')
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}
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def _get_ordered_categories():
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ordered_categories = list(settings['ui']['categories_order'])
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ordered_categories.extend(x for x in sorted(categories.keys()) if x not in ordered_categories)
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return ordered_categories
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def _get_enable_categories(all_categories):
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disabled_engines = request.preferences.engines.get_disabled()
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enabled_categories = set(category for engine_name in engines
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for category in engines[engine_name].categories
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if (engine_name, category) not in disabled_engines)
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return [x for x in
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all_categories
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if x in enabled_categories]
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def render(template_name, override_theme=None, **kwargs):
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# values from the HTTP requests
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kwargs['endpoint'] = 'results' if 'q' in kwargs else request.endpoint
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kwargs['cookies'] = request.cookies
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kwargs['errors'] = request.errors
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# values from the preferences
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kwargs['preferences'] = request.preferences
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kwargs['method'] = request.preferences.get_value('method')
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kwargs['autocomplete'] = request.preferences.get_value('autocomplete')
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kwargs['results_on_new_tab'] = request.preferences.get_value('results_on_new_tab')
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kwargs['advanced_search'] = request.preferences.get_value('advanced_search')
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kwargs['safesearch'] = str(request.preferences.get_value('safesearch'))
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kwargs['theme'] = get_current_theme_name(override=override_theme)
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kwargs['all_categories'] = _get_ordered_categories()
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kwargs['categories'] = _get_enable_categories(kwargs['all_categories'])
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# i18n
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kwargs['language_codes'] = languages # from searx.languages
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kwargs['translations'] = json.dumps(get_translations(), separators=(',', ':'))
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locale = request.preferences.get_value('locale')
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if locale in rtl_locales and 'rtl' not in kwargs:
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kwargs['rtl'] = True
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if 'current_language' not in kwargs:
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kwargs['current_language'] = match_language(request.preferences.get_value('language'),
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LANGUAGE_CODES)
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# values from settings
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kwargs['search_formats'] = [
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x for x in settings['search']['formats']
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if x != 'html']
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# brand
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kwargs['instance_name'] = settings['general']['instance_name']
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kwargs['searx_version'] = VERSION_STRING
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kwargs['brand'] = brand
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# helpers to create links to other pages
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kwargs['url_for'] = url_for_theme # override url_for function in templates
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kwargs['image_proxify'] = image_proxify
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kwargs['proxify'] = proxify if settings.get('result_proxy', {}).get('url') else None
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kwargs['proxify_results'] = settings.get('result_proxy', {}).get('proxify_results', True)
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kwargs['get_result_template'] = get_result_template
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kwargs['opensearch_url'] = url_for('opensearch') + '?' \
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+ urlencode({'method': kwargs['method'], 'autocomplete': kwargs['autocomplete']})
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# scripts from plugins
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kwargs['scripts'] = set()
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for plugin in request.user_plugins:
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for script in plugin.js_dependencies:
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kwargs['scripts'].add(script)
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# styles from plugins
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kwargs['styles'] = set()
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for plugin in request.user_plugins:
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for css in plugin.css_dependencies:
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kwargs['styles'].add(css)
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start_time = default_timer()
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result = render_template(
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'{}/{}'.format(kwargs['theme'], template_name), **kwargs)
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request.render_time += default_timer() - start_time # pylint: disable=assigning-non-slot
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return result
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@app.before_request
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def pre_request():
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request.start_time = default_timer() # pylint: disable=assigning-non-slot
|
|
request.render_time = 0 # pylint: disable=assigning-non-slot
|
|
request.timings = [] # pylint: disable=assigning-non-slot
|
|
request.errors = [] # pylint: disable=assigning-non-slot
|
|
|
|
preferences = Preferences(themes, list(categories.keys()), engines, plugins) # pylint: disable=redefined-outer-name
|
|
user_agent = request.headers.get('User-Agent', '').lower()
|
|
if 'webkit' in user_agent and 'android' in user_agent:
|
|
preferences.key_value_settings['method'].value = 'GET'
|
|
request.preferences = preferences # pylint: disable=assigning-non-slot
|
|
|
|
try:
|
|
preferences.parse_dict(request.cookies)
|
|
|
|
except Exception as e: # pylint: disable=broad-except
|
|
logger.exception(e, exc_info=True)
|
|
request.errors.append(gettext('Invalid settings, please edit your preferences'))
|
|
|
|
# merge GET, POST vars
|
|
# request.form
|
|
request.form = dict(request.form.items()) # pylint: disable=assigning-non-slot
|
|
for k, v in request.args.items():
|
|
if k not in request.form:
|
|
request.form[k] = v
|
|
|
|
if request.form.get('preferences'):
|
|
preferences.parse_encoded_data(request.form['preferences'])
|
|
else:
|
|
try:
|
|
preferences.parse_dict(request.form)
|
|
except Exception as e: # pylint: disable=broad-except
|
|
logger.exception(e, exc_info=True)
|
|
request.errors.append(gettext('Invalid settings'))
|
|
|
|
# init search language and locale
|
|
if not preferences.get_value("language"):
|
|
preferences.parse_dict({"language": _get_browser_or_settings_language(request, LANGUAGE_CODES)})
|
|
if not preferences.get_value("locale"):
|
|
preferences.parse_dict({"locale": get_locale()})
|
|
|
|
# request.user_plugins
|
|
request.user_plugins = [] # pylint: disable=assigning-non-slot
|
|
allowed_plugins = preferences.plugins.get_enabled()
|
|
disabled_plugins = preferences.plugins.get_disabled()
|
|
for plugin in plugins:
|
|
if ((plugin.default_on and plugin.id not in disabled_plugins)
|
|
or plugin.id in allowed_plugins):
|
|
request.user_plugins.append(plugin)
|
|
|
|
|
|
@app.after_request
|
|
def add_default_headers(response):
|
|
# set default http headers
|
|
for header, value in settings['server']['default_http_headers'].items():
|
|
if header in response.headers:
|
|
continue
|
|
response.headers[header] = value
|
|
return response
|
|
|
|
|
|
@app.after_request
|
|
def post_request(response):
|
|
total_time = default_timer() - request.start_time
|
|
timings_all = ['total;dur=' + str(round(total_time * 1000, 3)),
|
|
'render;dur=' + str(round(request.render_time * 1000, 3))]
|
|
if len(request.timings) > 0:
|
|
timings = sorted(request.timings, key=lambda v: v['total'])
|
|
timings_total = ['total_' + str(i) + '_' + v['engine'] +
|
|
';dur=' + str(round(v['total'] * 1000, 3)) for i, v in enumerate(timings)]
|
|
timings_load = ['load_' + str(i) + '_' + v['engine'] +
|
|
';dur=' + str(round(v['load'] * 1000, 3)) for i, v in enumerate(timings) if v.get('load')]
|
|
timings_all = timings_all + timings_total + timings_load
|
|
response.headers.add('Server-Timing', ', '.join(timings_all))
|
|
return response
|
|
|
|
|
|
def index_error(output_format, error_message):
|
|
if output_format == 'json':
|
|
return Response(json.dumps({'error': error_message}),
|
|
mimetype='application/json')
|
|
if output_format == 'csv':
|
|
response = Response('', mimetype='application/csv')
|
|
cont_disp = 'attachment;Filename=searx.csv'
|
|
response.headers.add('Content-Disposition', cont_disp)
|
|
return response
|
|
|
|
if output_format == 'rss':
|
|
response_rss = render(
|
|
'opensearch_response_rss.xml',
|
|
results=[],
|
|
q=request.form['q'] if 'q' in request.form else '',
|
|
number_of_results=0,
|
|
error_message=error_message,
|
|
override_theme='__common__',
|
|
)
|
|
return Response(response_rss, mimetype='text/xml')
|
|
|
|
# html
|
|
request.errors.append(gettext('search error'))
|
|
return render(
|
|
'index.html',
|
|
selected_categories=get_selected_categories(request.preferences, request.form),
|
|
)
|
|
|
|
|
|
@app.route('/', methods=['GET', 'POST'])
|
|
def index():
|
|
"""Render index page."""
|
|
|
|
# redirect to search if there's a query in the request
|
|
if request.form.get('q'):
|
|
query = ('?' + request.query_string.decode()) if request.query_string else ''
|
|
return redirect(url_for('search') + query, 308)
|
|
|
|
return render(
|
|
'index.html',
|
|
selected_categories=get_selected_categories(request.preferences, request.form),
|
|
)
|
|
|
|
|
|
@app.route('/search', methods=['GET', 'POST'])
|
|
def search():
|
|
"""Search query in q and return results.
|
|
|
|
Supported outputs: html, json, csv, rss.
|
|
"""
|
|
# pylint: disable=too-many-locals, too-many-return-statements, too-many-branches
|
|
# pylint: disable=too-many-statements
|
|
|
|
# output_format
|
|
output_format = request.form.get('format', 'html')
|
|
if output_format not in OUTPUT_FORMATS:
|
|
output_format = 'html'
|
|
|
|
if output_format not in settings['search']['formats']:
|
|
flask.abort(403)
|
|
|
|
# check if there is query (not None and not an empty string)
|
|
if not request.form.get('q'):
|
|
if output_format == 'html':
|
|
return render(
|
|
'index.html',
|
|
selected_categories=get_selected_categories(request.preferences, request.form),
|
|
)
|
|
return index_error(output_format, 'No query'), 400
|
|
|
|
# search
|
|
search_query = None
|
|
raw_text_query = None
|
|
result_container = None
|
|
try:
|
|
search_query, raw_text_query, _, _ = get_search_query_from_webapp(request.preferences, request.form)
|
|
# search = Search(search_query) # without plugins
|
|
search = SearchWithPlugins(search_query, request.user_plugins, request) # pylint: disable=redefined-outer-name
|
|
|
|
result_container = search.search()
|
|
|
|
except SearxParameterException as e:
|
|
logger.exception('search error: SearxParameterException')
|
|
return index_error(output_format, e.message), 400
|
|
except Exception as e: # pylint: disable=broad-except
|
|
logger.exception(e, exc_info=True)
|
|
return index_error(output_format, gettext('search error')), 500
|
|
|
|
# results
|
|
results = result_container.get_ordered_results()
|
|
number_of_results = result_container.results_number()
|
|
if number_of_results < result_container.results_length():
|
|
number_of_results = 0
|
|
|
|
# checkin for a external bang
|
|
if result_container.redirect_url:
|
|
return redirect(result_container.redirect_url)
|
|
|
|
# Server-Timing header
|
|
request.timings = result_container.get_timings() # pylint: disable=assigning-non-slot
|
|
|
|
# output
|
|
for result in results:
|
|
if output_format == 'html':
|
|
if 'content' in result and result['content']:
|
|
result['content'] = highlight_content(escape(result['content'][:1024]), search_query.query)
|
|
if 'title' in result and result['title']:
|
|
result['title'] = highlight_content(escape(result['title'] or ''), search_query.query)
|
|
else:
|
|
if result.get('content'):
|
|
result['content'] = html_to_text(result['content']).strip()
|
|
# removing html content and whitespace duplications
|
|
result['title'] = ' '.join(html_to_text(result['title']).strip().split())
|
|
|
|
if 'url' in result:
|
|
result['pretty_url'] = prettify_url(result['url'])
|
|
|
|
# TODO, check if timezone is calculated right # pylint: disable=fixme
|
|
if result.get('publishedDate'): # do not try to get a date from an empty string or a None type
|
|
try: # test if publishedDate >= 1900 (datetime module bug)
|
|
result['pubdate'] = result['publishedDate'].strftime('%Y-%m-%d %H:%M:%S%z')
|
|
except ValueError:
|
|
result['publishedDate'] = None
|
|
else:
|
|
if result['publishedDate'].replace(tzinfo=None) >= datetime.now() - timedelta(days=1):
|
|
timedifference = datetime.now() - result['publishedDate'].replace(tzinfo=None)
|
|
minutes = int((timedifference.seconds / 60) % 60)
|
|
hours = int(timedifference.seconds / 60 / 60)
|
|
if hours == 0:
|
|
result['publishedDate'] = gettext('{minutes} minute(s) ago').format(minutes=minutes)
|
|
else:
|
|
result['publishedDate'] = gettext(
|
|
'{hours} hour(s), {minutes} minute(s) ago').format(
|
|
hours=hours, minutes=minutes
|
|
)
|
|
else:
|
|
result['publishedDate'] = format_date(result['publishedDate'])
|
|
|
|
if output_format == 'json':
|
|
return Response(
|
|
json.dumps(
|
|
{
|
|
'query': search_query.query,
|
|
'number_of_results': number_of_results,
|
|
'results': results,
|
|
'answers': list(result_container.answers),
|
|
'corrections': list(result_container.corrections),
|
|
'infoboxes': result_container.infoboxes,
|
|
'suggestions': list(result_container.suggestions),
|
|
'unresponsive_engines': __get_translated_errors(result_container.unresponsive_engines)
|
|
},
|
|
default = lambda item: list(item) if isinstance(item, set) else item
|
|
),
|
|
mimetype='application/json'
|
|
)
|
|
|
|
if output_format == 'csv':
|
|
csv = UnicodeWriter(StringIO())
|
|
keys = ('title', 'url', 'content', 'host', 'engine', 'score', 'type')
|
|
csv.writerow(keys)
|
|
for row in results:
|
|
row['host'] = row['parsed_url'].netloc
|
|
row['type'] = 'result'
|
|
csv.writerow([row.get(key, '') for key in keys])
|
|
for a in result_container.answers:
|
|
row = {'title': a, 'type': 'answer'}
|
|
csv.writerow([row.get(key, '') for key in keys])
|
|
for a in result_container.suggestions:
|
|
row = {'title': a, 'type': 'suggestion'}
|
|
csv.writerow([row.get(key, '') for key in keys])
|
|
for a in result_container.corrections:
|
|
row = {'title': a, 'type': 'correction'}
|
|
csv.writerow([row.get(key, '') for key in keys])
|
|
csv.stream.seek(0)
|
|
response = Response(csv.stream.read(), mimetype='application/csv')
|
|
cont_disp = 'attachment;Filename=searx_-_{0}.csv'.format(search_query.query)
|
|
response.headers.add('Content-Disposition', cont_disp)
|
|
return response
|
|
|
|
if output_format == 'rss':
|
|
response_rss = render(
|
|
'opensearch_response_rss.xml',
|
|
results=results,
|
|
answers=result_container.answers,
|
|
corrections=result_container.corrections,
|
|
suggestions=result_container.suggestions,
|
|
q=request.form['q'],
|
|
number_of_results=number_of_results,
|
|
override_theme='__common__',
|
|
)
|
|
return Response(response_rss, mimetype='text/xml')
|
|
|
|
# HTML output format
|
|
|
|
# suggestions: use RawTextQuery to get the suggestion URLs with the same bang
|
|
suggestion_urls = list(map(lambda suggestion: {
|
|
'url': raw_text_query.changeQuery(suggestion).getFullQuery(),
|
|
'title': suggestion
|
|
},
|
|
result_container.suggestions))
|
|
|
|
correction_urls = list(map(lambda correction: {
|
|
'url': raw_text_query.changeQuery(correction).getFullQuery(),
|
|
'title': correction
|
|
},
|
|
result_container.corrections))
|
|
#
|
|
return render(
|
|
'results.html',
|
|
results=results,
|
|
q=request.form['q'],
|
|
selected_categories=search_query.categories,
|
|
pageno=search_query.pageno,
|
|
time_range=search_query.time_range,
|
|
number_of_results=format_decimal(number_of_results),
|
|
suggestions=suggestion_urls,
|
|
answers=result_container.answers,
|
|
corrections=correction_urls,
|
|
infoboxes=result_container.infoboxes,
|
|
engine_data=result_container.engine_data,
|
|
paging=result_container.paging,
|
|
unresponsive_engines=__get_translated_errors(result_container.unresponsive_engines),
|
|
current_language=match_language(search_query.lang,
|
|
LANGUAGE_CODES,
|
|
fallback=request.preferences.get_value("language")),
|
|
theme=get_current_theme_name(),
|
|
favicons=global_favicons[themes.index(get_current_theme_name())],
|
|
timeout_limit=request.form.get('timeout_limit', None)
|
|
)
|
|
|
|
|
|
def __get_translated_errors(unresponsive_engines):
|
|
translated_errors = []
|
|
# make a copy unresponsive_engines to avoid "RuntimeError: Set changed size during iteration"
|
|
# it happens when an engine modifies the ResultContainer after the search_multiple_requests method
|
|
# has stopped waiting
|
|
for unresponsive_engine in list(unresponsive_engines):
|
|
error_user_text = exception_classname_to_text.get(unresponsive_engine[1])
|
|
if not error_user_text:
|
|
error_user_text = exception_classname_to_text[None]
|
|
error_msg = gettext(error_user_text)
|
|
if unresponsive_engine[2]:
|
|
error_msg = "{} {}".format(error_msg, unresponsive_engine[2])
|
|
if unresponsive_engine[3]:
|
|
error_msg = gettext('Suspended') + ': ' + error_msg
|
|
translated_errors.append((unresponsive_engine[0], error_msg))
|
|
return sorted(translated_errors, key=lambda e: e[0])
|
|
|
|
|
|
@app.route('/about', methods=['GET'])
|
|
def about():
|
|
"""Render about page"""
|
|
return render(
|
|
'about.html',
|
|
)
|
|
|
|
|
|
@app.route('/autocompleter', methods=['GET', 'POST'])
|
|
def autocompleter():
|
|
"""Return autocompleter results"""
|
|
|
|
# run autocompleter
|
|
results = []
|
|
|
|
# set blocked engines
|
|
disabled_engines = request.preferences.engines.get_disabled()
|
|
|
|
# parse query
|
|
raw_text_query = RawTextQuery(request.form.get('q', ''), disabled_engines)
|
|
sug_prefix = raw_text_query.getQuery()
|
|
|
|
# normal autocompletion results only appear if no inner results returned
|
|
# and there is a query part
|
|
if len(raw_text_query.autocomplete_list) == 0 and len(sug_prefix) > 0:
|
|
|
|
# get language from cookie
|
|
language = request.preferences.get_value('language')
|
|
if not language or language == 'all':
|
|
language = 'en'
|
|
else:
|
|
language = language.split('-')[0]
|
|
|
|
# run autocompletion
|
|
raw_results = search_autocomplete(
|
|
request.preferences.get_value('autocomplete'), sug_prefix, language
|
|
)
|
|
for result in raw_results:
|
|
# attention: this loop will change raw_text_query object and this is
|
|
# the reason why the sug_prefix was stored before (see above)
|
|
results.append(raw_text_query.changeQuery(result).getFullQuery())
|
|
|
|
if len(raw_text_query.autocomplete_list) > 0:
|
|
for autocomplete_text in raw_text_query.autocomplete_list:
|
|
results.append(raw_text_query.get_autocomplete_full_query(autocomplete_text))
|
|
|
|
for answers in ask(raw_text_query):
|
|
for answer in answers:
|
|
results.append(str(answer['answer']))
|
|
|
|
if request.headers.get('X-Requested-With') == 'XMLHttpRequest':
|
|
# the suggestion request comes from the searx search form
|
|
suggestions = json.dumps(results)
|
|
mimetype = 'application/json'
|
|
else:
|
|
# the suggestion request comes from browser's URL bar
|
|
suggestions = json.dumps([sug_prefix, results])
|
|
mimetype = 'application/x-suggestions+json'
|
|
|
|
return Response(suggestions, mimetype=mimetype)
|
|
|
|
|
|
@app.route('/preferences', methods=['GET', 'POST'])
|
|
def preferences():
|
|
"""Render preferences page && save user preferences"""
|
|
|
|
# pylint: disable=too-many-locals, too-many-return-statements, too-many-branches
|
|
# pylint: disable=too-many-statements
|
|
|
|
# save preferences
|
|
if request.method == 'POST':
|
|
resp = make_response(redirect(url_for('index', _external=True)))
|
|
try:
|
|
request.preferences.parse_form(request.form)
|
|
except ValidationException:
|
|
request.errors.append(gettext('Invalid settings, please edit your preferences'))
|
|
return resp
|
|
return request.preferences.save(resp)
|
|
|
|
# render preferences
|
|
image_proxy = request.preferences.get_value('image_proxy') # pylint: disable=redefined-outer-name
|
|
disabled_engines = request.preferences.engines.get_disabled()
|
|
allowed_plugins = request.preferences.plugins.get_enabled()
|
|
|
|
# stats for preferences page
|
|
filtered_engines = dict(filter(lambda kv: (kv[0], request.preferences.validate_token(kv[1])), engines.items()))
|
|
|
|
engines_by_category = {}
|
|
for c in categories:
|
|
engines_by_category[c] = [e for e in categories[c] if e.name in filtered_engines]
|
|
# sort the engines alphabetically since the order in settings.yml is meaningless.
|
|
list.sort(engines_by_category[c], key=lambda e: e.name)
|
|
|
|
# get first element [0], the engine time,
|
|
# and then the second element [1] : the time (the first one is the label)
|
|
stats = {} # pylint: disable=redefined-outer-name
|
|
max_rate95 = 0
|
|
for _, e in filtered_engines.items():
|
|
h = histogram('engine', e.name, 'time', 'total')
|
|
median = round(h.percentage(50), 1) if h.count > 0 else None
|
|
rate80 = round(h.percentage(80), 1) if h.count > 0 else None
|
|
rate95 = round(h.percentage(95), 1) if h.count > 0 else None
|
|
|
|
max_rate95 = max(max_rate95, rate95 or 0)
|
|
|
|
result_count_sum = histogram('engine', e.name, 'result', 'count').sum
|
|
successful_count = counter('engine', e.name, 'search', 'count', 'successful')
|
|
result_count = int(result_count_sum / float(successful_count)) if successful_count else 0
|
|
|
|
stats[e.name] = {
|
|
'time': median,
|
|
'rate80': rate80,
|
|
'rate95': rate95,
|
|
'warn_timeout': e.timeout > settings['outgoing']['request_timeout'],
|
|
'supports_selected_language': _is_selected_language_supported(e, request.preferences),
|
|
'result_count': result_count,
|
|
}
|
|
# end of stats
|
|
|
|
# reliabilities
|
|
reliabilities = {}
|
|
engine_errors = get_engine_errors(filtered_engines)
|
|
checker_results = checker_get_result()
|
|
checker_results = checker_results['engines'] \
|
|
if checker_results['status'] == 'ok' and 'engines' in checker_results else {}
|
|
for _, e in filtered_engines.items():
|
|
checker_result = checker_results.get(e.name, {})
|
|
checker_success = checker_result.get('success', True)
|
|
errors = engine_errors.get(e.name) or []
|
|
if counter('engine', e.name, 'search', 'count', 'sent') == 0:
|
|
# no request
|
|
reliablity = None
|
|
elif checker_success and not errors:
|
|
reliablity = 100
|
|
elif 'simple' in checker_result.get('errors', {}):
|
|
# the basic (simple) test doesn't work: the engine is broken accoding to the checker
|
|
# even if there is no exception
|
|
reliablity = 0
|
|
else:
|
|
reliablity = 100 - sum([error['percentage'] for error in errors if not error.get('secondary')])
|
|
|
|
reliabilities[e.name] = {
|
|
'reliablity': reliablity,
|
|
'errors': [],
|
|
'checker': checker_results.get(e.name, {}).get('errors', {}).keys(),
|
|
}
|
|
# keep the order of the list checker_results[e.name]['errors'] and deduplicate.
|
|
# the first element has the highest percentage rate.
|
|
reliabilities_errors = []
|
|
for error in errors:
|
|
error_user_text = None
|
|
if error.get('secondary') or 'exception_classname' not in error:
|
|
continue
|
|
error_user_text = exception_classname_to_text.get(error.get('exception_classname'))
|
|
if not error:
|
|
error_user_text = exception_classname_to_text[None]
|
|
if error_user_text not in reliabilities_errors:
|
|
reliabilities_errors.append(error_user_text)
|
|
reliabilities[e.name]['errors'] = reliabilities_errors
|
|
|
|
# supports
|
|
supports = {}
|
|
for _, e in filtered_engines.items():
|
|
supports_selected_language = _is_selected_language_supported(e, request.preferences)
|
|
safesearch = e.safesearch
|
|
time_range_support = e.time_range_support
|
|
for checker_test_name in checker_results.get(e.name, {}).get('errors', {}):
|
|
if supports_selected_language and checker_test_name.startswith('lang_'):
|
|
supports_selected_language = '?'
|
|
elif safesearch and checker_test_name == 'safesearch':
|
|
safesearch = '?'
|
|
elif time_range_support and checker_test_name == 'time_range':
|
|
time_range_support = '?'
|
|
supports[e.name] = {
|
|
'supports_selected_language': supports_selected_language,
|
|
'safesearch': safesearch,
|
|
'time_range_support': time_range_support,
|
|
}
|
|
|
|
#
|
|
return render('preferences.html',
|
|
selected_categories=get_selected_categories(request.preferences, request.form),
|
|
locales=settings['locales'],
|
|
current_locale=request.preferences.get_value("locale"),
|
|
image_proxy=image_proxy,
|
|
engines_by_category=engines_by_category,
|
|
stats=stats,
|
|
max_rate95=max_rate95,
|
|
reliabilities=reliabilities,
|
|
supports=supports,
|
|
answerers=[{'info': a.self_info(), 'keywords': a.keywords} for a in answerers],
|
|
disabled_engines=disabled_engines,
|
|
autocomplete_backends=autocomplete_backends,
|
|
shortcuts={y: x for x, y in engine_shortcuts.items()},
|
|
themes=themes,
|
|
plugins=plugins,
|
|
doi_resolvers=settings['doi_resolvers'],
|
|
current_doi_resolver=get_doi_resolver(request.args, request.preferences.get_value('doi_resolver')),
|
|
allowed_plugins=allowed_plugins,
|
|
theme=get_current_theme_name(),
|
|
preferences_url_params=request.preferences.get_as_url_params(),
|
|
locked_preferences=settings['preferences']['lock'],
|
|
preferences=True)
|
|
|
|
|
|
def _is_selected_language_supported(engine, preferences): # pylint: disable=redefined-outer-name
|
|
language = preferences.get_value('language')
|
|
return (language == 'all'
|
|
or match_language(language,
|
|
getattr(engine, 'supported_languages', []),
|
|
getattr(engine, 'language_aliases', {}), None))
|
|
|
|
|
|
@app.route('/image_proxy', methods=['GET'])
|
|
def image_proxy():
|
|
# pylint: disable=too-many-return-statements
|
|
|
|
url = request.args.get('url')
|
|
|
|
if not url:
|
|
return '', 400
|
|
|
|
h = new_hmac(settings['server']['secret_key'], url.encode())
|
|
|
|
if h != request.args.get('h'):
|
|
return '', 400
|
|
|
|
maximum_size = 5 * 1024 * 1024
|
|
|
|
try:
|
|
headers = dict_subset(request.headers, {'If-Modified-Since', 'If-None-Match'})
|
|
headers['User-Agent'] = gen_useragent()
|
|
stream = http_stream(
|
|
method='GET',
|
|
url=url,
|
|
headers=headers,
|
|
timeout=settings['outgoing']['request_timeout'],
|
|
allow_redirects=True,
|
|
max_redirects=20)
|
|
|
|
resp = next(stream)
|
|
content_length = resp.headers.get('Content-Length')
|
|
if content_length and content_length.isdigit() and int(content_length) > maximum_size:
|
|
return 'Max size', 400
|
|
|
|
if resp.status_code == 304:
|
|
return '', resp.status_code
|
|
|
|
if resp.status_code != 200:
|
|
logger.debug('image-proxy: wrong response code: {0}'.format(resp.status_code))
|
|
if resp.status_code >= 400:
|
|
return '', resp.status_code
|
|
return '', 400
|
|
|
|
if not resp.headers.get('content-type', '').startswith('image/'):
|
|
logger.debug('image-proxy: wrong content-type: {0}'.format(resp.headers.get('content-type')))
|
|
return '', 400
|
|
|
|
headers = dict_subset(resp.headers, {'Content-Length', 'Length', 'Date', 'Last-Modified', 'Expires', 'Etag'})
|
|
|
|
total_length = 0
|
|
|
|
def forward_chunk():
|
|
nonlocal total_length
|
|
for chunk in stream:
|
|
total_length += len(chunk)
|
|
if total_length > maximum_size:
|
|
break
|
|
yield chunk
|
|
|
|
return Response(forward_chunk(), mimetype=resp.headers['Content-Type'], headers=headers)
|
|
except httpx.HTTPError:
|
|
return '', 400
|
|
|
|
|
|
@app.route('/stats', methods=['GET'])
|
|
def stats():
|
|
"""Render engine statistics page."""
|
|
sort_order = request.args.get('sort', default='name', type=str)
|
|
selected_engine_name = request.args.get('engine', default=None, type=str)
|
|
|
|
filtered_engines = dict(filter(lambda kv: (kv[0], request.preferences.validate_token(kv[1])), engines.items()))
|
|
if selected_engine_name:
|
|
if selected_engine_name not in filtered_engines:
|
|
selected_engine_name = None
|
|
else:
|
|
filtered_engines = [selected_engine_name]
|
|
|
|
checker_results = checker_get_result()
|
|
checker_results = checker_results['engines'] \
|
|
if checker_results['status'] == 'ok' and 'engines' in checker_results else {}
|
|
|
|
engine_stats = get_engines_stats(filtered_engines)
|
|
engine_reliabilities = get_reliabilities(filtered_engines, checker_results)
|
|
|
|
if sort_order not in STATS_SORT_PARAMETERS:
|
|
sort_order = 'name'
|
|
|
|
reverse, key_name, default_value = STATS_SORT_PARAMETERS[sort_order]
|
|
|
|
def get_key(engine_stat):
|
|
reliability = engine_reliabilities.get(engine_stat['name']).get('reliablity', 0)
|
|
reliability_order = 0 if reliability else 1
|
|
if key_name == 'reliability':
|
|
key = reliability
|
|
reliability_order = 0
|
|
else:
|
|
key = engine_stat.get(key_name) or default_value
|
|
if reverse:
|
|
reliability_order = 1 - reliability_order
|
|
return (reliability_order, key, engine_stat['name'])
|
|
|
|
engine_stats['time'] = sorted(engine_stats['time'], reverse=reverse, key=get_key)
|
|
return render(
|
|
'stats.html',
|
|
sort_order=sort_order,
|
|
engine_stats=engine_stats,
|
|
engine_reliabilities=engine_reliabilities,
|
|
selected_engine_name=selected_engine_name,
|
|
)
|
|
|
|
|
|
@app.route('/stats/errors', methods=['GET'])
|
|
def stats_errors():
|
|
filtered_engines = dict(filter(lambda kv: (kv[0], request.preferences.validate_token(kv[1])), engines.items()))
|
|
result = get_engine_errors(filtered_engines)
|
|
return jsonify(result)
|
|
|
|
|
|
@app.route('/stats/checker', methods=['GET'])
|
|
def stats_checker():
|
|
result = checker_get_result()
|
|
return jsonify(result)
|
|
|
|
|
|
@app.route('/robots.txt', methods=['GET'])
|
|
def robots():
|
|
return Response("""User-agent: *
|
|
Allow: /
|
|
Allow: /about
|
|
Disallow: /stats
|
|
Disallow: /preferences
|
|
Disallow: /*?*q=*
|
|
""", mimetype='text/plain')
|
|
|
|
|
|
@app.route('/opensearch.xml', methods=['GET'])
|
|
def opensearch():
|
|
method = 'post'
|
|
|
|
if request.preferences.get_value('method') == 'GET':
|
|
method = 'get'
|
|
|
|
# chrome/chromium only supports HTTP GET....
|
|
if request.headers.get('User-Agent', '').lower().find('webkit') >= 0:
|
|
method = 'get'
|
|
|
|
ret = render(
|
|
'opensearch.xml',
|
|
opensearch_method=method,
|
|
override_theme='__common__'
|
|
)
|
|
|
|
resp = Response(response=ret,
|
|
status=200,
|
|
mimetype="application/opensearchdescription+xml")
|
|
return resp
|
|
|
|
|
|
@app.route('/favicon.ico')
|
|
def favicon():
|
|
return send_from_directory(
|
|
os.path.join(
|
|
app.root_path,
|
|
settings['ui']['static_path'],
|
|
'themes',
|
|
get_current_theme_name(),
|
|
'img'),
|
|
'favicon.png',
|
|
mimetype = 'image/vnd.microsoft.icon'
|
|
)
|
|
|
|
@app.route('/clear_cookies')
|
|
def clear_cookies():
|
|
resp = make_response(redirect(url_for('index', _external=True)))
|
|
for cookie_name in request.cookies:
|
|
resp.delete_cookie(cookie_name)
|
|
return resp
|
|
|
|
|
|
@app.route('/config')
|
|
def config():
|
|
"""Return configuration in JSON format."""
|
|
_engines = []
|
|
for name, engine in engines.items():
|
|
if not request.preferences.validate_token(engine):
|
|
continue
|
|
|
|
supported_languages = engine.supported_languages
|
|
if isinstance(engine.supported_languages, dict):
|
|
supported_languages = list(engine.supported_languages.keys())
|
|
|
|
_engines.append({
|
|
'name': name,
|
|
'categories': engine.categories,
|
|
'shortcut': engine.shortcut,
|
|
'enabled': not engine.disabled,
|
|
'paging': engine.paging,
|
|
'language_support': engine.language_support,
|
|
'supported_languages': supported_languages,
|
|
'safesearch': engine.safesearch,
|
|
'time_range_support': engine.time_range_support,
|
|
'timeout': engine.timeout
|
|
})
|
|
|
|
_plugins = []
|
|
for _ in plugins:
|
|
_plugins.append({'name': _.name, 'enabled': _.default_on})
|
|
|
|
return jsonify({
|
|
'categories': list(categories.keys()),
|
|
'engines': _engines,
|
|
'plugins': _plugins,
|
|
'instance_name': settings['general']['instance_name'],
|
|
'locales': settings['locales'],
|
|
'default_locale': settings['ui']['default_locale'],
|
|
'autocomplete': settings['search']['autocomplete'],
|
|
'safe_search': settings['search']['safe_search'],
|
|
'default_theme': settings['ui']['default_theme'],
|
|
'version': VERSION_STRING,
|
|
'brand': {
|
|
'CONTACT_URL': brand.CONTACT_URL,
|
|
'GIT_URL': brand.GIT_URL,
|
|
'DOCS_URL': brand.DOCS_URL
|
|
},
|
|
'doi_resolvers': list(settings['doi_resolvers'].keys()),
|
|
'default_doi_resolver': settings['default_doi_resolver'],
|
|
})
|
|
|
|
|
|
@app.errorhandler(404)
|
|
def page_not_found(_e):
|
|
return render('404.html'), 404
|
|
|
|
|
|
def run():
|
|
logger.debug('starting webserver on %s:%s', settings['server']['bind_address'], settings['server']['port'])
|
|
app.run(
|
|
debug=searx_debug,
|
|
use_debugger=searx_debug,
|
|
port=settings['server']['port'],
|
|
host=settings['server']['bind_address'],
|
|
threaded=True,
|
|
extra_files=[
|
|
get_default_settings_path()
|
|
],
|
|
)
|
|
|
|
application = app
|
|
patch_application(app)
|
|
|
|
if __name__ == "__main__":
|
|
run()
|