forked from zaclys/searxng
980 lines
35 KiB
Python
980 lines
35 KiB
Python
#!/usr/bin/env python
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'''
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searx is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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searx is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with searx. If not, see < http://www.gnu.org/licenses/ >.
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(C) 2013- by Adam Tauber, <asciimoo@gmail.com>
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'''
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if __name__ == '__main__':
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from sys import path
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from os.path import realpath, dirname
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path.append(realpath(dirname(realpath(__file__)) + '/../'))
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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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import requests
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from searx import logger
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logger = logger.getChild('webapp')
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try:
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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
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except:
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logger.critical("cannot import dependency: pygments")
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from sys import exit
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exit(1)
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try:
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from cgi import escape
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except:
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from html import escape
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from datetime import datetime, timedelta
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from time import time
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from werkzeug.contrib.fixers import ProxyFix
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from flask import (
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Flask, request, render_template, url_for, Response, make_response,
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redirect, send_from_directory
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)
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from flask_babel import Babel, gettext, format_date, format_decimal
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from flask.json import jsonify
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from searx import settings, searx_dir, searx_debug
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from searx.exceptions import SearxParameterException
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from searx.engines import (
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categories, engines, engine_shortcuts, get_engines_stats, initialize_engines
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)
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from searx.utils import (
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UnicodeWriter, highlight_content, html_to_text, get_resources_directory,
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get_static_files, get_result_templates, get_themes, gen_useragent,
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dict_subset, prettify_url, match_language
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)
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from searx.version import VERSION_STRING
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from searx.languages import language_codes as languages
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from searx.search import SearchWithPlugins, get_search_query_from_webapp
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from searx.query import RawTextQuery
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from searx.autocomplete import searx_bang, backends as autocomplete_backends
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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 Preferences, ValidationException, LANGUAGE_CODES
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from searx.answerers import answerers
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from searx.url_utils import urlencode, urlparse, urljoin
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from searx.utils import new_hmac
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# check if the pyopenssl package is installed.
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# It is needed for SSL connection without trouble, see #298
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try:
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import OpenSSL.SSL # NOQA
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except ImportError:
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logger.critical("The pyopenssl package has to be installed.\n"
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"Some HTTPS connections will fail")
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try:
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from cStringIO import StringIO
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except:
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from io import StringIO
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if sys.version_info[0] == 3:
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unicode = str
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PY3 = True
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else:
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PY3 = False
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# serve pages with HTTP/1.1
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from werkzeug.serving import WSGIRequestHandler
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WSGIRequestHandler.protocol_version = "HTTP/{}".format(settings['server'].get('http_protocol_version', '1.0'))
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# about static
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static_path = get_resources_directory(searx_dir, 'static', settings['ui']['static_path'])
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logger.debug('static directory is %s', static_path)
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static_files = get_static_files(static_path)
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# about templates
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default_theme = settings['ui']['default_theme']
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templates_path = get_resources_directory(searx_dir, 'templates', settings['ui']['templates_path'])
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logger.debug('templates directory is %s', 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(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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# Flask app
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app = Flask(
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__name__,
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static_folder=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')
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app.secret_key = settings['server']['secret_key']
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if not searx_debug \
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or os.environ.get("WERKZEUG_RUN_MAIN") == "true" \
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or os.environ.get('UWSGI_ORIGINAL_PROC_NAME') is not None:
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initialize_engines(settings['engines'])
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babel = Babel(app)
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rtl_locales = ['ar', 'arc', 'bcc', 'bqi', 'ckb', 'dv', 'fa', 'glk', 'he',
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'ku', 'mzn', 'pnb', 'ps', 'sd', 'ug', 'ur', 'yi']
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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('science'))
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outgoing_proxies = settings['outgoing'].get('proxies') or None
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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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return request.form['locale']
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if 'locale' in request.args\
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and request.args['locale'] in settings['locales']:
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return request.args['locale']
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if request.preferences.get_value('locale') != '':
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return request.preferences.get_value('locale')
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return request.accept_languages.best_match(settings['locales'].keys())
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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:
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# if lexer is not found, using default one
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logger.debug('highlighter cannot find lexer for {0}'.format(language))
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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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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)
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html_code = html_code + highlight(tmp_code, lexer, formatter)
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return html_code
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# Extract domain from url
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@app.template_filter('extract_domain')
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def extract_domain(url):
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return urlparse(url)[1]
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def get_base_url():
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if settings['server']['base_url']:
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hostname = settings['server']['base_url']
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else:
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scheme = 'http'
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if request.is_secure:
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scheme = 'https'
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hostname = url_for('index', _external=True, _scheme=scheme)
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return hostname
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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, template_name):
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themed_path = theme + '/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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return url_for(endpoint, **values)
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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('utf-8'))
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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('utf-8'),
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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/jpeg;base64,'):
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return url
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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('utf-8'))
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return '{0}?{1}'.format(url_for('image_proxy'),
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urlencode(dict(url=url.encode('utf-8'), h=h)))
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def render(template_name, override_theme=None, **kwargs):
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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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if 'categories' not in kwargs:
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kwargs['categories'] = ['general']
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kwargs['categories'].extend(x for x in
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sorted(categories.keys())
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if x != 'general'
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and x in enabled_categories)
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if 'all_categories' not in kwargs:
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kwargs['all_categories'] = ['general']
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kwargs['all_categories'].extend(x for x in
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sorted(categories.keys())
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if x != 'general')
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if 'selected_categories' not in kwargs:
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kwargs['selected_categories'] = []
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for arg in request.args:
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if arg.startswith('category_'):
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c = arg.split('_', 1)[1]
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if c in categories:
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kwargs['selected_categories'].append(c)
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if not kwargs['selected_categories']:
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cookie_categories = request.preferences.get_value('categories')
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for ccateg in cookie_categories:
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kwargs['selected_categories'].append(ccateg)
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if not kwargs['selected_categories']:
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kwargs['selected_categories'] = ['general']
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if 'autocomplete' not in kwargs:
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kwargs['autocomplete'] = request.preferences.get_value('autocomplete')
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if get_locale() in rtl_locales and 'rtl' not in kwargs:
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kwargs['rtl'] = True
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kwargs['searx_version'] = VERSION_STRING
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kwargs['method'] = request.preferences.get_value('method')
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kwargs['safesearch'] = str(request.preferences.get_value('safesearch'))
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kwargs['language_codes'] = languages
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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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fallback=settings['search']['language'])
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# override url_for function in templates
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kwargs['url_for'] = url_for_theme
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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['get_result_template'] = get_result_template
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kwargs['theme'] = get_current_theme_name(override=override_theme)
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kwargs['template_name'] = template_name
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kwargs['cookies'] = request.cookies
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kwargs['errors'] = request.errors
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kwargs['instance_name'] = settings['general']['instance_name']
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kwargs['results_on_new_tab'] = request.preferences.get_value('results_on_new_tab')
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kwargs['unicode'] = unicode
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kwargs['preferences'] = request.preferences
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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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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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return render_template(
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'{}/{}'.format(kwargs['theme'], template_name), **kwargs)
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@app.before_request
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def pre_request():
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request.start_time = time()
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request.timings = []
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request.errors = []
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preferences = Preferences(themes, list(categories.keys()), engines, plugins)
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request.preferences = preferences
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try:
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preferences.parse_dict(request.cookies)
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except:
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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
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request.form = dict(request.form.items())
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for k, v in request.args.items():
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if k not in request.form:
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request.form[k] = v
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if request.form.get('preferences'):
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preferences.parse_encoded_data(request.form['preferences'])
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else:
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try:
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preferences.parse_dict(request.form)
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except Exception as e:
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logger.exception('invalid settings')
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request.errors.append(gettext('Invalid settings'))
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# request.user_plugins
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request.user_plugins = []
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allowed_plugins = preferences.plugins.get_enabled()
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disabled_plugins = preferences.plugins.get_disabled()
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for plugin in plugins:
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if ((plugin.default_on and plugin.id not in disabled_plugins)
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or plugin.id in allowed_plugins):
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request.user_plugins.append(plugin)
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@app.after_request
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def post_request(response):
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total_time = time() - request.start_time
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timings_all = ['total;dur=' + str(round(total_time * 1000, 3))]
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if len(request.timings) > 0:
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timings = sorted(request.timings, key=lambda v: v['total'])
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timings_total = ['total_' + str(i) + '_' + v['engine'] +
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';dur=' + str(round(v['total'] * 1000, 3)) for i, v in enumerate(timings)]
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timings_load = ['load_' + str(i) + '_' + v['engine'] +
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';dur=' + str(round(v['load'] * 1000, 3)) for i, v in enumerate(timings)]
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timings_all = timings_all + timings_total + timings_load
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response.headers.add('Server-Timing', ', '.join(timings_all))
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return response
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def index_error(output_format, error_message):
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if output_format == 'json':
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return Response(json.dumps({'error': error_message}),
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mimetype='application/json')
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elif output_format == 'csv':
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response = Response('', mimetype='application/csv')
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cont_disp = 'attachment;Filename=searx.csv'
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response.headers.add('Content-Disposition', cont_disp)
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return response
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elif output_format == 'rss':
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response_rss = render(
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'opensearch_response_rss.xml',
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results=[],
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q=request.form['q'] if 'q' in request.form else '',
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number_of_results=0,
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base_url=get_base_url(),
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error_message=error_message,
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override_theme='__common__',
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)
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return Response(response_rss, mimetype='text/xml')
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else:
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# html
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request.errors.append(gettext('search error'))
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return render(
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'index.html',
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)
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@app.route('/search', methods=['GET', 'POST'])
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@app.route('/', methods=['GET', 'POST'])
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def index():
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"""Render index page.
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Supported outputs: html, json, csv, rss.
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"""
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# output_format
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output_format = request.form.get('format', 'html')
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if output_format not in ['html', 'csv', 'json', 'rss']:
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output_format = 'html'
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# check if there is query
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if request.form.get('q') is None:
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if output_format == 'html':
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return render(
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'index.html',
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)
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else:
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return index_error(output_format, 'No query'), 400
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# search
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search_query = None
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raw_text_query = None
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result_container = None
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try:
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search_query, raw_text_query = get_search_query_from_webapp(request.preferences, request.form)
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# search = Search(search_query) # without plugins
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search = SearchWithPlugins(search_query, request.user_plugins, request)
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result_container = search.search()
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except Exception as e:
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# log exception
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logger.exception('search error')
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# is it an invalid input parameter or something else ?
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if (issubclass(e.__class__, SearxParameterException)):
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return index_error(output_format, e.message), 400
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else:
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return index_error(output_format, gettext('search error')), 500
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# results
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|
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
|
|
|
|
# UI
|
|
advanced_search = request.form.get('advanced_search', None)
|
|
|
|
# Server-Timing header
|
|
request.timings = result_container.get_timings()
|
|
|
|
# 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 u''), 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
|
|
if 'publishedDate' in result:
|
|
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(u'{minutes} minute(s) ago').format(minutes=minutes)
|
|
else:
|
|
result['publishedDate'] = gettext(u'{hours} hour(s), {minutes} minute(s) ago').format(hours=hours, minutes=minutes) # noqa
|
|
else:
|
|
result['publishedDate'] = format_date(result['publishedDate'])
|
|
|
|
if output_format == 'json':
|
|
return Response(json.dumps({'query': search_query.query.decode('utf-8'),
|
|
'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': list(result_container.unresponsive_engines)},
|
|
default=lambda item: list(item) if isinstance(item, set) else item),
|
|
mimetype='application/json')
|
|
elif output_format == 'csv':
|
|
csv = UnicodeWriter(StringIO())
|
|
keys = ('title', 'url', 'content', 'host', 'engine', 'score')
|
|
csv.writerow(keys)
|
|
for row in results:
|
|
row['host'] = row['parsed_url'].netloc
|
|
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
|
|
elif output_format == 'rss':
|
|
response_rss = render(
|
|
'opensearch_response_rss.xml',
|
|
results=results,
|
|
q=request.form['q'],
|
|
number_of_results=number_of_results,
|
|
base_url=get_base_url(),
|
|
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.changeSearchQuery(suggestion).getFullQuery(),
|
|
'title': suggestion
|
|
},
|
|
result_container.suggestions))
|
|
|
|
correction_urls = list(map(lambda correction: {
|
|
'url': raw_text_query.changeSearchQuery(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),
|
|
advanced_search=advanced_search,
|
|
suggestions=suggestion_urls,
|
|
answers=result_container.answers,
|
|
corrections=correction_urls,
|
|
infoboxes=result_container.infoboxes,
|
|
paging=result_container.paging,
|
|
unresponsive_engines=result_container.unresponsive_engines,
|
|
current_language=match_language(search_query.lang,
|
|
LANGUAGE_CODES,
|
|
fallback=settings['search']['language']),
|
|
base_url=get_base_url(),
|
|
theme=get_current_theme_name(),
|
|
favicons=global_favicons[themes.index(get_current_theme_name())],
|
|
timeout_limit=request.form.get('timeout_limit', None)
|
|
)
|
|
|
|
|
|
@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"""
|
|
|
|
# set blocked engines
|
|
disabled_engines = request.preferences.engines.get_disabled()
|
|
|
|
# parse query
|
|
if PY3:
|
|
raw_text_query = RawTextQuery(request.form.get('q', b''), disabled_engines)
|
|
else:
|
|
raw_text_query = RawTextQuery(request.form.get('q', u'').encode('utf-8'), disabled_engines)
|
|
raw_text_query.parse_query()
|
|
|
|
# check if search query is set
|
|
if not raw_text_query.getSearchQuery():
|
|
return '', 400
|
|
|
|
# run autocompleter
|
|
completer = autocomplete_backends.get(request.preferences.get_value('autocomplete'))
|
|
|
|
# parse searx specific autocompleter results like !bang
|
|
raw_results = searx_bang(raw_text_query)
|
|
|
|
# normal autocompletion results only appear if no inner results returned
|
|
# and there is a query part besides the engine and language bangs
|
|
if len(raw_results) == 0 and completer and (len(raw_text_query.query_parts) > 1 or
|
|
(len(raw_text_query.languages) == 0 and
|
|
not raw_text_query.specific)):
|
|
# 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.extend(completer(raw_text_query.getSearchQuery(), language))
|
|
|
|
# parse results (write :language and !engine back to result string)
|
|
results = []
|
|
for result in raw_results:
|
|
raw_text_query.changeSearchQuery(result)
|
|
|
|
# add parsed result
|
|
results.append(raw_text_query.getFullQuery())
|
|
|
|
# return autocompleter results
|
|
if request.form.get('format') == 'x-suggestions':
|
|
return Response(json.dumps([raw_text_query.query, results]),
|
|
mimetype='application/json')
|
|
|
|
return Response(json.dumps(results),
|
|
mimetype='application/json')
|
|
|
|
|
|
@app.route('/preferences', methods=['GET', 'POST'])
|
|
def preferences():
|
|
"""Render preferences page && save user preferences"""
|
|
|
|
# save preferences
|
|
if request.method == 'POST':
|
|
resp = make_response(redirect(urljoin(settings['server']['base_url'], url_for('index'))))
|
|
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')
|
|
lang = request.preferences.get_value('language')
|
|
disabled_engines = request.preferences.engines.get_disabled()
|
|
allowed_plugins = request.preferences.plugins.get_enabled()
|
|
|
|
# stats for preferences page
|
|
stats = {}
|
|
|
|
for c in categories:
|
|
for e in categories[c]:
|
|
stats[e.name] = {'time': None,
|
|
'warn_timeout': False,
|
|
'warn_time': False}
|
|
if e.timeout > settings['outgoing']['request_timeout']:
|
|
stats[e.name]['warn_timeout'] = True
|
|
stats[e.name]['supports_selected_language'] = _is_selected_language_supported(e, request.preferences)
|
|
|
|
# get first element [0], the engine time,
|
|
# and then the second element [1] : the time (the first one is the label)
|
|
for engine_stat in get_engines_stats()[0][1]:
|
|
stats[engine_stat.get('name')]['time'] = round(engine_stat.get('avg'), 3)
|
|
if engine_stat.get('avg') > settings['outgoing']['request_timeout']:
|
|
stats[engine_stat.get('name')]['warn_time'] = True
|
|
# end of stats
|
|
|
|
return render('preferences.html',
|
|
locales=settings['locales'],
|
|
current_locale=get_locale(),
|
|
image_proxy=image_proxy,
|
|
engines_by_category=categories,
|
|
stats=stats,
|
|
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(),
|
|
base_url=get_base_url(),
|
|
preferences=True)
|
|
|
|
|
|
def _is_selected_language_supported(engine, preferences):
|
|
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():
|
|
url = request.args.get('url').encode('utf-8')
|
|
|
|
if not url:
|
|
return '', 400
|
|
|
|
h = new_hmac(settings['server']['secret_key'], url)
|
|
|
|
if h != request.args.get('h'):
|
|
return '', 400
|
|
|
|
headers = dict_subset(request.headers, {'If-Modified-Since', 'If-None-Match'})
|
|
headers['User-Agent'] = gen_useragent()
|
|
|
|
resp = requests.get(url,
|
|
stream=True,
|
|
timeout=settings['outgoing']['request_timeout'],
|
|
headers=headers,
|
|
proxies=outgoing_proxies)
|
|
|
|
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
|
|
|
|
img = b''
|
|
chunk_counter = 0
|
|
|
|
for chunk in resp.iter_content(1024 * 1024):
|
|
chunk_counter += 1
|
|
if chunk_counter > 5:
|
|
return '', 502 # Bad gateway - file is too big (>5M)
|
|
img += chunk
|
|
|
|
headers = dict_subset(resp.headers, {'Content-Length', 'Length', 'Date', 'Last-Modified', 'Expires', 'Etag'})
|
|
|
|
return Response(img, mimetype=resp.headers['content-type'], headers=headers)
|
|
|
|
|
|
@app.route('/stats', methods=['GET'])
|
|
def stats():
|
|
"""Render engine statistics page."""
|
|
stats = get_engines_stats()
|
|
return render(
|
|
'stats.html',
|
|
stats=stats,
|
|
)
|
|
|
|
|
|
@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,
|
|
host=get_base_url(),
|
|
urljoin=urljoin,
|
|
override_theme='__common__')
|
|
|
|
resp = Response(response=ret,
|
|
status=200,
|
|
mimetype="text/xml")
|
|
return resp
|
|
|
|
|
|
@app.route('/favicon.ico')
|
|
def favicon():
|
|
return send_from_directory(os.path.join(app.root_path,
|
|
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(urljoin(settings['server']['base_url'], url_for('index'))))
|
|
for cookie_name in request.cookies:
|
|
resp.delete_cookie(cookie_name)
|
|
return resp
|
|
|
|
|
|
@app.route('/config')
|
|
def config():
|
|
return jsonify({'categories': list(categories.keys()),
|
|
'engines': [{'name': engine_name,
|
|
'categories': engine.categories,
|
|
'shortcut': engine.shortcut,
|
|
'enabled': not engine.disabled,
|
|
'paging': engine.paging,
|
|
'language_support': engine.language_support,
|
|
'supported_languages':
|
|
list(engine.supported_languages.keys())
|
|
if isinstance(engine.supported_languages, dict)
|
|
else engine.supported_languages,
|
|
'safesearch': engine.safesearch,
|
|
'time_range_support': engine.time_range_support,
|
|
'timeout': engine.timeout}
|
|
for engine_name, engine in engines.items()],
|
|
'plugins': [{'name': plugin.name,
|
|
'enabled': plugin.default_on}
|
|
for plugin in 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,
|
|
'doi_resolvers': [r for r in settings['doi_resolvers']],
|
|
'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
|
|
)
|
|
|
|
|
|
class ReverseProxyPathFix(object):
|
|
'''Wrap the application in this middleware and configure the
|
|
front-end server to add these headers, to let you quietly bind
|
|
this to a URL other than / and to an HTTP scheme that is
|
|
different than what is used locally.
|
|
|
|
http://flask.pocoo.org/snippets/35/
|
|
|
|
In nginx:
|
|
location /myprefix {
|
|
proxy_pass http://127.0.0.1:8000;
|
|
proxy_set_header Host $host;
|
|
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
|
|
proxy_set_header X-Scheme $scheme;
|
|
proxy_set_header X-Script-Name /myprefix;
|
|
}
|
|
|
|
:param app: the WSGI application
|
|
'''
|
|
|
|
def __init__(self, app):
|
|
self.app = app
|
|
|
|
def __call__(self, environ, start_response):
|
|
script_name = environ.get('HTTP_X_SCRIPT_NAME', '')
|
|
if script_name:
|
|
environ['SCRIPT_NAME'] = script_name
|
|
path_info = environ['PATH_INFO']
|
|
if path_info.startswith(script_name):
|
|
environ['PATH_INFO'] = path_info[len(script_name):]
|
|
|
|
scheme = environ.get('HTTP_X_SCHEME', '')
|
|
if scheme:
|
|
environ['wsgi.url_scheme'] = scheme
|
|
return self.app(environ, start_response)
|
|
|
|
|
|
application = app
|
|
# patch app to handle non root url-s behind proxy & wsgi
|
|
app.wsgi_app = ReverseProxyPathFix(ProxyFix(application.wsgi_app))
|
|
|
|
if __name__ == "__main__":
|
|
run()
|