forked from zaclys/searxng
571 lines
19 KiB
Python
571 lines
19 KiB
Python
#!/usr/bin/env python
|
|
|
|
'''
|
|
searx is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Affero General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
searx is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Affero General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Affero General Public License
|
|
along with searx. If not, see < http://www.gnu.org/licenses/ >.
|
|
|
|
(C) 2013- by Adam Tauber, <asciimoo@gmail.com>
|
|
'''
|
|
|
|
if __name__ == '__main__':
|
|
from sys import path
|
|
from os.path import realpath, dirname
|
|
path.append(realpath(dirname(realpath(__file__))+'/../'))
|
|
|
|
import json
|
|
import cStringIO
|
|
import os
|
|
|
|
from datetime import datetime, timedelta
|
|
from itertools import chain
|
|
from flask import (
|
|
Flask, request, render_template, url_for, Response, make_response,
|
|
redirect, send_from_directory
|
|
)
|
|
from flask.ext.babel import Babel, gettext, format_date
|
|
from searx import settings, searx_dir
|
|
from searx.engines import (
|
|
categories, engines, get_engines_stats, engine_shortcuts
|
|
)
|
|
from searx.utils import (
|
|
UnicodeWriter, highlight_content, html_to_text, get_themes
|
|
)
|
|
from searx.version import VERSION_STRING
|
|
from searx.https_rewrite import https_rules
|
|
from searx.languages import language_codes
|
|
from searx.search import Search
|
|
from searx.query import Query
|
|
from searx.autocomplete import backends as autocomplete_backends
|
|
|
|
from urlparse import urlparse
|
|
import re
|
|
|
|
|
|
static_path, templates_path, themes =\
|
|
get_themes(settings['themes_path']
|
|
if settings.get('themes_path')
|
|
else searx_dir)
|
|
|
|
default_theme = settings['server'].get('default_theme', 'default')
|
|
|
|
app = Flask(
|
|
__name__,
|
|
static_folder=static_path,
|
|
template_folder=templates_path
|
|
)
|
|
|
|
app.secret_key = settings['server']['secret_key']
|
|
|
|
babel = Babel(app)
|
|
|
|
#TODO configurable via settings.yml
|
|
favicons = ['wikipedia', 'youtube', 'vimeo', 'dailymotion', 'soundcloud',
|
|
'twitter', 'stackoverflow', 'github', 'deviantart']
|
|
|
|
cookie_max_age = 60 * 60 * 24 * 365 * 23 # 23 years
|
|
|
|
|
|
@babel.localeselector
|
|
def get_locale():
|
|
locale = request.accept_languages.best_match(settings['locales'].keys())
|
|
|
|
if request.cookies.get('locale', '') in settings['locales']:
|
|
locale = request.cookies.get('locale', '')
|
|
|
|
if 'locale' in request.args\
|
|
and request.args['locale'] in settings['locales']:
|
|
locale = request.args['locale']
|
|
|
|
if 'locale' in request.form\
|
|
and request.form['locale'] in settings['locales']:
|
|
locale = request.form['locale']
|
|
|
|
return locale
|
|
|
|
|
|
def get_base_url():
|
|
if settings['server']['base_url']:
|
|
hostname = settings['server']['base_url']
|
|
else:
|
|
scheme = 'http'
|
|
if request.is_secure:
|
|
scheme = 'https'
|
|
hostname = url_for('index', _external=True, _scheme=scheme)
|
|
return hostname
|
|
|
|
|
|
def get_current_theme_name(override=None):
|
|
"""Returns theme name.
|
|
|
|
Checks in this order:
|
|
1. override
|
|
2. cookies
|
|
3. settings"""
|
|
|
|
if override and override in themes:
|
|
return override
|
|
theme_name = request.args.get('theme',
|
|
request.cookies.get('theme',
|
|
default_theme))
|
|
if theme_name not in themes:
|
|
theme_name = default_theme
|
|
return theme_name
|
|
|
|
|
|
def url_for_theme(endpoint, override_theme=None, **values):
|
|
if endpoint == 'static' and values.get('filename', None):
|
|
theme_name = get_current_theme_name(override=override_theme)
|
|
values['filename'] = "{}/{}".format(theme_name, values['filename'])
|
|
return url_for(endpoint, **values)
|
|
|
|
|
|
def render(template_name, override_theme=None, **kwargs):
|
|
blocked_engines = request.cookies.get('blocked_engines', '').split(',')
|
|
|
|
autocomplete = request.cookies.get('autocomplete')
|
|
|
|
if autocomplete not in autocomplete_backends:
|
|
autocomplete = None
|
|
|
|
nonblocked_categories = (engines[e].categories
|
|
for e in engines
|
|
if e not in blocked_engines)
|
|
|
|
nonblocked_categories = set(chain.from_iterable(nonblocked_categories))
|
|
|
|
if 'categories' not in kwargs:
|
|
kwargs['categories'] = ['general']
|
|
kwargs['categories'].extend(x for x in
|
|
sorted(categories.keys())
|
|
if x != 'general'
|
|
and x in nonblocked_categories)
|
|
|
|
if 'selected_categories' not in kwargs:
|
|
kwargs['selected_categories'] = []
|
|
for arg in request.args:
|
|
if arg.startswith('category_'):
|
|
c = arg.split('_', 1)[1]
|
|
if c in categories:
|
|
kwargs['selected_categories'].append(c)
|
|
if not kwargs['selected_categories']:
|
|
cookie_categories = request.cookies.get('categories', '').split(',')
|
|
for ccateg in cookie_categories:
|
|
if ccateg in categories:
|
|
kwargs['selected_categories'].append(ccateg)
|
|
if not kwargs['selected_categories']:
|
|
kwargs['selected_categories'] = ['general']
|
|
|
|
if 'autocomplete' not in kwargs:
|
|
kwargs['autocomplete'] = autocomplete
|
|
|
|
kwargs['searx_version'] = VERSION_STRING
|
|
|
|
kwargs['method'] = request.cookies.get('method', 'POST')
|
|
|
|
# override url_for function in templates
|
|
kwargs['url_for'] = url_for_theme
|
|
|
|
kwargs['theme'] = get_current_theme_name(override=override_theme)
|
|
|
|
kwargs['template_name'] = template_name
|
|
|
|
return render_template(
|
|
'{}/{}'.format(kwargs['theme'], template_name), **kwargs)
|
|
|
|
|
|
@app.route('/search', methods=['GET', 'POST'])
|
|
@app.route('/', methods=['GET', 'POST'])
|
|
def index():
|
|
"""Render index page.
|
|
|
|
Supported outputs: html, json, csv, rss.
|
|
"""
|
|
|
|
if not request.args and not request.form:
|
|
return render(
|
|
'index.html',
|
|
)
|
|
|
|
try:
|
|
search = Search(request)
|
|
except:
|
|
return render(
|
|
'index.html',
|
|
)
|
|
|
|
search.results, search.suggestions,\
|
|
search.answers, search.infoboxes = search.search(request)
|
|
|
|
for result in search.results:
|
|
|
|
if not search.paging and engines[result['engine']].paging:
|
|
search.paging = True
|
|
|
|
# check if HTTPS rewrite is required
|
|
if settings['server']['https_rewrite']\
|
|
and result['parsed_url'].scheme == 'http':
|
|
|
|
skip_https_rewrite = False
|
|
|
|
# check if HTTPS rewrite is possible
|
|
for target, rules, exclusions in https_rules:
|
|
|
|
# check if target regex match with url
|
|
if target.match(result['url']):
|
|
# process exclusions
|
|
for exclusion in exclusions:
|
|
# check if exclusion match with url
|
|
if exclusion.match(result['url']):
|
|
skip_https_rewrite = True
|
|
break
|
|
|
|
# skip https rewrite if required
|
|
if skip_https_rewrite:
|
|
break
|
|
|
|
# process rules
|
|
for rule in rules:
|
|
try:
|
|
# TODO, precompile rule
|
|
p = re.compile(rule[0])
|
|
|
|
# rewrite url if possible
|
|
new_result_url = p.sub(rule[1], result['url'])
|
|
except:
|
|
break
|
|
|
|
# parse new url
|
|
new_parsed_url = urlparse(new_result_url)
|
|
|
|
# continiue if nothing was rewritten
|
|
if result['url'] == new_result_url:
|
|
continue
|
|
|
|
# get domainname from result
|
|
# TODO, does only work correct with TLD's like
|
|
# asdf.com, not for asdf.com.de
|
|
# TODO, using publicsuffix instead of this rewrite rule
|
|
old_result_domainname = '.'.join(
|
|
result['parsed_url'].hostname.split('.')[-2:])
|
|
new_result_domainname = '.'.join(
|
|
new_parsed_url.hostname.split('.')[-2:])
|
|
|
|
# check if rewritten hostname is the same,
|
|
# to protect against wrong or malicious rewrite rules
|
|
if old_result_domainname == new_result_domainname:
|
|
# set new url
|
|
result['url'] = new_result_url
|
|
|
|
# target has matched, do not search over the other rules
|
|
break
|
|
|
|
if search.request_data.get('format', 'html') == 'html':
|
|
if 'content' in result:
|
|
result['content'] = highlight_content(result['content'],
|
|
search.query.encode('utf-8')) # noqa
|
|
result['title'] = highlight_content(result['title'],
|
|
search.query.encode('utf-8'))
|
|
else:
|
|
if 'content' in result:
|
|
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 len(result['url']) > 74:
|
|
url_parts = result['url'][:35], result['url'][-35:]
|
|
result['pretty_url'] = u'{0}[...]{1}'.format(*url_parts)
|
|
else:
|
|
result['pretty_url'] = result['url']
|
|
|
|
for engine in result['engines']:
|
|
if engine in favicons:
|
|
result['favicon'] = engine
|
|
|
|
# TODO, check if timezone is calculated right
|
|
if 'publishedDate' in result:
|
|
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) # noqa
|
|
else:
|
|
result['publishedDate'] = gettext(u'{hours} hour(s), {minutes} minute(s) ago').format(hours=hours, minutes=minutes) # noqa
|
|
else:
|
|
result['pubdate'] = result['publishedDate']\
|
|
.strftime('%a, %d %b %Y %H:%M:%S %z')
|
|
result['publishedDate'] = format_date(result['publishedDate'])
|
|
|
|
if search.request_data.get('format') == 'json':
|
|
return Response(json.dumps({'query': search.query,
|
|
'results': search.results}),
|
|
mimetype='application/json')
|
|
elif search.request_data.get('format') == 'csv':
|
|
csv = UnicodeWriter(cStringIO.StringIO())
|
|
keys = ('title', 'url', 'content', 'host', 'engine', 'score')
|
|
if search.results:
|
|
csv.writerow(keys)
|
|
for row in search.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)
|
|
response.headers.add('Content-Disposition', cont_disp)
|
|
return response
|
|
elif search.request_data.get('format') == 'rss':
|
|
response_rss = render(
|
|
'opensearch_response_rss.xml',
|
|
results=search.results,
|
|
q=search.request_data['q'],
|
|
number_of_results=len(search.results),
|
|
base_url=get_base_url()
|
|
)
|
|
return Response(response_rss, mimetype='text/xml')
|
|
|
|
return render(
|
|
'results.html',
|
|
results=search.results,
|
|
q=search.request_data['q'],
|
|
selected_categories=search.categories,
|
|
paging=search.paging,
|
|
pageno=search.pageno,
|
|
base_url=get_base_url(),
|
|
suggestions=search.suggestions,
|
|
answers=search.answers,
|
|
infoboxes=search.infoboxes,
|
|
theme=get_current_theme_name()
|
|
)
|
|
|
|
|
|
@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"""
|
|
request_data = {}
|
|
|
|
# select request method
|
|
if request.method == 'POST':
|
|
request_data = request.form
|
|
else:
|
|
request_data = request.args
|
|
|
|
# set blocked engines
|
|
if request.cookies.get('blocked_engines'):
|
|
blocked_engines = request.cookies['blocked_engines'].split(',') # noqa
|
|
else:
|
|
blocked_engines = []
|
|
|
|
# parse query
|
|
query = Query(request_data.get('q', '').encode('utf-8'), blocked_engines)
|
|
query.parse_query()
|
|
|
|
# check if search query is set
|
|
if not query.getSearchQuery():
|
|
return
|
|
|
|
# run autocompleter
|
|
completer = autocomplete_backends.get(request.cookies.get('autocomplete'))
|
|
|
|
# check if valid autocompleter is selected
|
|
if not completer:
|
|
return
|
|
|
|
# run autocompletion
|
|
raw_results = completer(query.getSearchQuery())
|
|
|
|
# parse results (write :language and !engine back to result string)
|
|
results = []
|
|
for result in raw_results:
|
|
result_query = query
|
|
result_query.changeSearchQuery(result)
|
|
|
|
# add parsed result
|
|
results.append(result_query.getFullQuery())
|
|
|
|
# return autocompleter results
|
|
if request_data.get('format') == 'x-suggestions':
|
|
return Response(json.dumps([query, results]),
|
|
mimetype='application/json')
|
|
else:
|
|
return Response(json.dumps(results),
|
|
mimetype='application/json')
|
|
|
|
|
|
@app.route('/preferences', methods=['GET', 'POST'])
|
|
def preferences():
|
|
"""Render preferences page.
|
|
|
|
Settings that are going to be saved as cookies."""
|
|
lang = None
|
|
|
|
if request.cookies.get('language')\
|
|
and request.cookies['language'] in (x[0] for x in language_codes):
|
|
lang = request.cookies['language']
|
|
|
|
blocked_engines = []
|
|
|
|
if request.method == 'GET':
|
|
blocked_engines = request.cookies.get('blocked_engines', '').split(',')
|
|
else: # on save
|
|
selected_categories = []
|
|
locale = None
|
|
autocomplete = ''
|
|
method = 'POST'
|
|
for pd_name, pd in request.form.items():
|
|
if pd_name.startswith('category_'):
|
|
category = pd_name[9:]
|
|
if category not in categories:
|
|
continue
|
|
selected_categories.append(category)
|
|
elif pd_name == 'locale' and pd in settings['locales']:
|
|
locale = pd
|
|
elif pd_name == 'autocomplete':
|
|
autocomplete = pd
|
|
elif pd_name == 'language' and (pd == 'all' or
|
|
pd in (x[0] for
|
|
x in language_codes)):
|
|
lang = pd
|
|
elif pd_name == 'method':
|
|
method = pd
|
|
elif pd_name.startswith('engine_'):
|
|
engine_name = pd_name.replace('engine_', '', 1)
|
|
if engine_name in engines:
|
|
blocked_engines.append(engine_name)
|
|
elif pd_name == 'theme':
|
|
theme = pd if pd in themes else default_theme
|
|
|
|
resp = make_response(redirect(url_for('index')))
|
|
|
|
user_blocked_engines = request.cookies.get('blocked_engines', '').split(',') # noqa
|
|
|
|
if sorted(blocked_engines) != sorted(user_blocked_engines):
|
|
resp.set_cookie(
|
|
'blocked_engines', ','.join(blocked_engines),
|
|
max_age=cookie_max_age
|
|
)
|
|
|
|
if locale:
|
|
resp.set_cookie(
|
|
'locale', locale,
|
|
max_age=cookie_max_age
|
|
)
|
|
|
|
if lang:
|
|
resp.set_cookie(
|
|
'language', lang,
|
|
max_age=cookie_max_age
|
|
)
|
|
|
|
if selected_categories:
|
|
# cookie max age: 4 weeks
|
|
resp.set_cookie(
|
|
'categories', ','.join(selected_categories),
|
|
max_age=cookie_max_age
|
|
)
|
|
|
|
resp.set_cookie(
|
|
'autocomplete', autocomplete,
|
|
max_age=cookie_max_age
|
|
)
|
|
|
|
resp.set_cookie('method', method, max_age=cookie_max_age)
|
|
|
|
resp.set_cookie(
|
|
'theme', theme, max_age=cookie_max_age)
|
|
|
|
return resp
|
|
return render('preferences.html',
|
|
locales=settings['locales'],
|
|
current_locale=get_locale(),
|
|
current_language=lang or 'all',
|
|
language_codes=language_codes,
|
|
categs=categories.items(),
|
|
blocked_engines=blocked_engines,
|
|
autocomplete_backends=autocomplete_backends,
|
|
shortcuts={y: x for x, y in engine_shortcuts.items()},
|
|
themes=themes,
|
|
theme=get_current_theme_name())
|
|
|
|
|
|
@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
|
|
""", mimetype='text/plain')
|
|
|
|
|
|
@app.route('/opensearch.xml', methods=['GET'])
|
|
def opensearch():
|
|
method = 'post'
|
|
# 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())
|
|
|
|
resp = Response(response=ret,
|
|
status=200,
|
|
mimetype="application/xml")
|
|
return resp
|
|
|
|
|
|
@app.route('/favicon.ico')
|
|
def favicon():
|
|
return send_from_directory(os.path.join(app.root_path,
|
|
'static',
|
|
get_current_theme_name(),
|
|
'img'),
|
|
'favicon.png',
|
|
mimetype='image/vnd.microsoft.icon')
|
|
|
|
|
|
def run():
|
|
app.run(
|
|
debug=settings['server']['debug'],
|
|
use_debugger=settings['server']['debug'],
|
|
port=settings['server']['port']
|
|
)
|
|
|
|
|
|
application = app
|
|
|
|
|
|
if __name__ == "__main__":
|
|
run()
|