mirror of
https://github.com/searxng/searxng.git
synced 2024-12-25 02:30:29 +00:00
1393 lines
48 KiB
Python
Executable file
1393 lines
48 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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"""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 (
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logger,
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get_setting,
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settings,
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searx_debug,
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)
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from searx.data import ENGINE_DESCRIPTIONS
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from searx.settings_defaults import OUTPUT_FORMATS
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from searx.settings_loader import get_default_settings_path
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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, GIT_URL, GIT_BRANCH
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from searx.query import RawTextQuery
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from searx.plugins import plugins, initialize as plugin_initialize
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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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)
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from searx.answerers import (
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answerers,
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ask,
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)
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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.locales import LOCALE_NAMES, RTL_LOCALES
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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, set_context_network_name
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from searx.search.checker import get_result as checker_get_result
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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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babel = Babel(app)
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# used when translating category names
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_category_names = (
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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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#
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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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# monkey patch for flask_babel.get_translations
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_flask_babel_get_translations = 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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@babel.localeselector
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def get_locale():
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locale = request.preferences.get_value('locale') if has_request_context() else 'en'
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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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if locale == '':
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# if there is an error loading the preferences
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# the locale is going to be ''
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locale = 'en'
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# babel uses underscore instead of hyphen.
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locale = locale.replace('-', '_')
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logger.debug("%s uses locale `%s`", urllib.parse.quote(request.url), locale)
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return locale
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def _get_browser_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 'en'
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def _get_locale_rfc5646(locale):
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"""Get locale name for <html lang="...">
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Chrom* browsers don't detect the language when there is a subtag (ie a territory).
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For example "zh-TW" is detected but not "zh-Hant-TW".
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This function returns a locale without the subtag.
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"""
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parts = locale.split('-')
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return parts[0].lower() + '-' + parts[-1].upper()
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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(
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linenos='inline', linenostart=line_code_start, cssclass="code-highlight"
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)
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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(
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settings['result_proxy']['key'],
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url.encode(),
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hashlib.sha256
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).hexdigest()
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return '{0}?{1}'.format(
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settings['result_proxy']['url'],
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urlencode(url_params)
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)
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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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# /preferences: the source of the engine description (wikipedata, wikidata, website)
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'Source': gettext('Source'),
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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(
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# pylint: disable=consider-using-dict-items
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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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)
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return [x for x in all_categories 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'] = [ l for l in languages if l[0] in settings['search']['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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kwargs['locale_rfc5646'] = _get_locale_rfc5646(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(
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request.preferences.get_value('language'), settings['search']['languages'] )
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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'] if x != 'html'
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]
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kwargs['instance_name'] = get_setting('general.instance_name')
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kwargs['searx_version'] = VERSION_STRING
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kwargs['searx_git_url'] = GIT_URL
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kwargs['get_setting'] = get_setting
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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'] = (
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url_for('opensearch')
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+ '?'
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+ urlencode({'method': kwargs['method'], 'autocomplete': kwargs['autocomplete']})
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)
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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
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request.render_time = 0 # pylint: disable=assigning-non-slot
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request.timings = [] # pylint: disable=assigning-non-slot
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request.errors = [] # pylint: disable=assigning-non-slot
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preferences = Preferences(themes, list(categories.keys()), engines, plugins) # pylint: disable=redefined-outer-name
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user_agent = request.headers.get('User-Agent', '').lower()
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if 'webkit' in user_agent and 'android' in user_agent:
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preferences.key_value_settings['method'].value = 'GET'
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request.preferences = preferences # pylint: disable=assigning-non-slot
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try:
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preferences.parse_dict(request.cookies)
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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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request.errors.append(gettext('Invalid settings, please edit your preferences'))
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# merge GET, POST vars
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# 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'))
|
|
|
|
# language is defined neither in settings nor in preferences
|
|
# use browser headers
|
|
if not preferences.get_value("language"):
|
|
language = _get_browser_language(request, settings['search']['languages'])
|
|
preferences.parse_dict({"language": language})
|
|
|
|
# locale is defined neither in settings nor in preferences
|
|
# use browser headers
|
|
if not preferences.get_value("locale"):
|
|
locale = _get_browser_language(request, LOCALE_NAMES.keys())
|
|
preferences.parse_dict({"locale": 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':
|
|
x = {
|
|
'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)
|
|
}
|
|
response = json.dumps(
|
|
x, default = lambda item: list(item) if isinstance(item, set) else item
|
|
)
|
|
return Response(response, 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,
|
|
settings['search']['languages'],
|
|
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: # pylint: disable=consider-using-dict-items
|
|
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 = LOCALE_NAMES,
|
|
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.preferences),
|
|
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')
|
|
if language == 'all':
|
|
return True
|
|
x = match_language(
|
|
language,
|
|
getattr(engine, 'supported_languages', []),
|
|
getattr(engine, 'language_aliases', {}),
|
|
None
|
|
)
|
|
return bool(x)
|
|
|
|
|
|
@app.route('/image_proxy', methods=['GET'])
|
|
def image_proxy():
|
|
# pylint: disable=too-many-return-statements, too-many-branches
|
|
|
|
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
|
|
forward_resp = False
|
|
resp = None
|
|
try:
|
|
request_headers = {
|
|
'User-Agent': gen_useragent(),
|
|
'Accept': 'image/webp,*/*',
|
|
'Accept-Encoding': 'gzip, deflate',
|
|
'Sec-GPC': '1',
|
|
'DNT': '1',
|
|
}
|
|
set_context_network_name('image_proxy')
|
|
resp, stream = http_stream(
|
|
method = 'GET',
|
|
url = url,
|
|
headers = request_headers
|
|
)
|
|
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 != 200:
|
|
logger.debug('image-proxy: wrong response code: %i', 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: %s', resp.headers.get('Content-Type', ''))
|
|
return '', 400
|
|
|
|
forward_resp = True
|
|
except httpx.HTTPError:
|
|
logger.exception('HTTP error')
|
|
return '', 400
|
|
finally:
|
|
if resp and not forward_resp:
|
|
# the code is about to return an HTTP 400 error to the browser
|
|
# we make sure to close the response between searxng and the HTTP server
|
|
try:
|
|
resp.close()
|
|
except httpx.HTTPError:
|
|
logger.exception('HTTP error on closing')
|
|
|
|
def close_stream():
|
|
nonlocal resp, stream
|
|
try:
|
|
resp.close()
|
|
del resp
|
|
del stream
|
|
except httpx.HTTPError as e:
|
|
logger.debug('Exception while closing response', e)
|
|
|
|
try:
|
|
headers = dict_subset(
|
|
resp.headers,
|
|
{'Content-Type', 'Content-Encoding', 'Content-Length', 'Length'}
|
|
)
|
|
response = Response(
|
|
stream,
|
|
mimetype=resp.headers['Content-Type'],
|
|
headers=headers,
|
|
direct_passthrough=True)
|
|
response.call_on_close(close_stream)
|
|
return response
|
|
except httpx.HTTPError:
|
|
close_stream()
|
|
return '', 400
|
|
|
|
|
|
@app.route('/engine_descriptions.json', methods=['GET'])
|
|
def engine_descriptions():
|
|
locale = get_locale().split('_')[0]
|
|
result = ENGINE_DESCRIPTIONS['en'].copy()
|
|
if locale != 'en':
|
|
for engine, description in ENGINE_DESCRIPTIONS.get(locale, {}).items():
|
|
result[engine] = description
|
|
for engine, description in result.items():
|
|
if len(description) ==2 and description[1] == 'ref':
|
|
ref_engine, ref_lang = description[0].split(':')
|
|
description = ENGINE_DESCRIPTIONS[ref_lang][ref_engine]
|
|
if isinstance(description, str):
|
|
description = [ description, 'wikipedia' ]
|
|
result[engine] = description
|
|
return jsonify(result)
|
|
|
|
|
|
@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,
|
|
searx_git_branch = GIT_BRANCH,
|
|
)
|
|
|
|
|
|
@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': LOCALE_NAMES,
|
|
'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': get_setting('general.contact_url'),
|
|
'GIT_URL': GIT_URL,
|
|
'GIT_BRANCH': GIT_BRANCH,
|
|
'DOCS_URL': get_setting('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
|
|
|
|
|
|
# see https://flask.palletsprojects.com/en/1.1.x/cli/
|
|
# True if "FLASK_APP=searx/webapp.py FLASK_ENV=development flask run"
|
|
flask_run_development = (
|
|
os.environ.get("FLASK_APP") is not None
|
|
and os.environ.get("FLASK_ENV") == 'development'
|
|
and is_flask_run_cmdline()
|
|
)
|
|
|
|
# True if reload feature is activated of werkzeug, False otherwise (including uwsgi, etc..)
|
|
# __name__ != "__main__" if searx.webapp is imported (make test, make docs, uwsgi...)
|
|
# see run() at the end of this file : searx_debug activates the reload feature.
|
|
werkzeug_reloader = flask_run_development or (searx_debug and __name__ == "__main__")
|
|
|
|
# initialize the engines except on the first run of the werkzeug server.
|
|
if (not werkzeug_reloader
|
|
or (werkzeug_reloader
|
|
and os.environ.get("WERKZEUG_RUN_MAIN") == "true") ):
|
|
plugin_initialize(app)
|
|
search_initialize(enable_checker=True, check_network=True)
|
|
|
|
|
|
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()
|