mirror of
https://github.com/searxng/searxng.git
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318 lines
10 KiB
Python
318 lines
10 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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import json
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import cStringIO
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import os
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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.ext.babel import Babel
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from searx import settings, searx_dir
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from searx.engines import (
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search as do_search, categories, engines, get_engines_stats,
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engine_shortcuts
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)
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from searx.utils import UnicodeWriter, highlight_content, html_to_text
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from searx.languages import language_codes
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from searx.search import Search
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app = Flask(
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__name__,
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static_folder=os.path.join(searx_dir, 'static'),
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template_folder=os.path.join(searx_dir, 'templates')
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)
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app.secret_key = settings['server']['secret_key']
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babel = Babel(app)
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#TODO configurable via settings.yml
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favicons = ['wikipedia', 'youtube', 'vimeo', 'soundcloud',
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'twitter', 'stackoverflow', 'github']
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@babel.localeselector
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def get_locale():
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locale = request.accept_languages.best_match(settings['locales'].keys())
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if request.cookies.get('locale', '') in settings['locales']:
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locale = request.cookies.get('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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locale = request.args['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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locale = request.form['locale']
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return locale
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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 render(template_name, **kwargs):
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global categories
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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()) if x != 'general')
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if not 'selected_categories' in kwargs:
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kwargs['selected_categories'] = []
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cookie_categories = request.cookies.get('categories', '').split(',')
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for ccateg in cookie_categories:
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if ccateg in 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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return render_template(template_name, **kwargs)
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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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if not request.args and not request.form:
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return render('index.html')
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try:
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search = Search(request)
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except:
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return render('index.html')
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# TODO moar refactor - do_search integration into Search class
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search.results, search.suggestions = do_search(search.query,
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request,
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search.engines,
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search.pageno,
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search.lang)
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for result in search.results:
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if not search.paging and engines[result['engine']].paging:
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search.paging = True
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if search.request_data.get('format', 'html') == 'html':
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if 'content' in result:
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result['content'] = highlight_content(result['content'],
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search.query.encode('utf-8')) # noqa
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result['title'] = highlight_content(result['title'],
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search.query.encode('utf-8'))
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else:
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if 'content' in result:
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result['content'] = html_to_text(result['content']).strip()
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# removing html content and whitespace duplications
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result['title'] = ' '.join(html_to_text(result['title'])
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.strip().split())
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if len(result['url']) > 74:
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url_parts = result['url'][:35], result['url'][-35:]
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result['pretty_url'] = '{0}[...]{1}'.format(*url_parts)
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else:
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result['pretty_url'] = result['url']
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for engine in result['engines']:
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if engine in favicons:
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result['favicon'] = engine
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if search.request_data.get('format') == 'json':
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return Response(json.dumps({'query': search.query,
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'results': search.results}),
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mimetype='application/json')
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elif search.request_data.get('format') == 'csv':
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csv = UnicodeWriter(cStringIO.StringIO())
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keys = ('title', 'url', 'content', 'host', 'engine', 'score')
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if search.results:
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csv.writerow(keys)
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for row in search.results:
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row['host'] = row['parsed_url'].netloc
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csv.writerow([row.get(key, '') for key in keys])
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csv.stream.seek(0)
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response = Response(csv.stream.read(), mimetype='application/csv')
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cont_disp = 'attachment;Filename=searx_-_{0}.csv'.format(search.query)
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response.headers.add('Content-Disposition', cont_disp)
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return response
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elif search.request_data.get('format') == 'rss':
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response_rss = render(
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'opensearch_response_rss.xml',
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results=search.results,
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q=search.request_data['q'],
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number_of_results=len(search.results),
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base_url=get_base_url()
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)
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return Response(response_rss, mimetype='text/xml')
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return render(
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'results.html',
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results=search.results,
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q=search.request_data['q'],
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selected_categories=search.categories,
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paging=search.paging,
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pageno=search.pageno,
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suggestions=search.suggestions
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)
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@app.route('/about', methods=['GET'])
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def about():
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"""Render about page"""
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return render('about.html')
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@app.route('/preferences', methods=['GET', 'POST'])
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def preferences():
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"""Render preferences page.
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Settings that are going to be saved as cookies."""
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lang = None
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if request.cookies.get('language')\
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and request.cookies['language'] in (x[0] for x in language_codes):
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lang = request.cookies['language']
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blocked_engines = []
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if request.method == 'GET':
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blocked_engines = request.cookies.get('blocked_engines', '').split(',')
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else:
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selected_categories = []
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locale = None
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for pd_name, pd in request.form.items():
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if pd_name.startswith('category_'):
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category = pd_name[9:]
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if not category in categories:
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continue
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selected_categories.append(category)
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elif pd_name == 'locale' and pd in settings['locales']:
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locale = pd
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elif pd_name == 'language' and (pd == 'all' or
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pd in (x[0] for
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x in language_codes)):
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lang = pd
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elif pd_name.startswith('engine_'):
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engine_name = pd_name.replace('engine_', '', 1)
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if engine_name in engines:
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blocked_engines.append(engine_name)
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resp = make_response(redirect('/'))
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user_blocked_engines = request.cookies.get('blocked_engines', '').split(',') # noqa
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if sorted(blocked_engines) != sorted(user_blocked_engines):
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# cookie max age: 4 weeks
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resp.set_cookie(
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'blocked_engines', ','.join(blocked_engines),
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max_age=60 * 60 * 24 * 7 * 4
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)
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if locale:
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# cookie max age: 4 weeks
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resp.set_cookie(
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'locale', locale,
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max_age=60 * 60 * 24 * 7 * 4
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)
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if lang:
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# cookie max age: 4 weeks
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resp.set_cookie(
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'language', lang,
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max_age=60 * 60 * 24 * 7 * 4
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)
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if selected_categories:
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# cookie max age: 4 weeks
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resp.set_cookie(
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'categories', ','.join(selected_categories),
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max_age=60 * 60 * 24 * 7 * 4
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)
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return resp
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return render('preferences.html',
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locales=settings['locales'],
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current_locale=get_locale(),
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current_language=lang or 'all',
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language_codes=language_codes,
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categs=categories.items(),
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blocked_engines=blocked_engines,
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shortcuts={y: x for x, y in engine_shortcuts.items()})
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@app.route('/stats', methods=['GET'])
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def stats():
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"""Render engine statistics page."""
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global categories
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stats = get_engines_stats()
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return render('stats.html', stats=stats)
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@app.route('/robots.txt', methods=['GET'])
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def robots():
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return Response("""User-agent: *
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Allow: /
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Allow: /about
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Disallow: /stats
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Disallow: /preferences
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""", mimetype='text/plain')
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@app.route('/opensearch.xml', methods=['GET'])
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def opensearch():
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method = 'post'
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# chrome/chromium only supports HTTP GET....
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if request.headers.get('User-Agent', '').lower().find('webkit') >= 0:
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method = 'get'
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ret = render('opensearch.xml', method=method, host=get_base_url())
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resp = Response(response=ret,
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status=200,
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mimetype="application/xml")
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return resp
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@app.route('/favicon.ico')
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def favicon():
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return send_from_directory(os.path.join(app.root_path, 'static/img'),
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'favicon.png',
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mimetype='image/vnd.microsoft.icon')
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def run():
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from gevent import monkey
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monkey.patch_all()
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app.run(
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debug=settings['server']['debug'],
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use_debugger=settings['server']['debug'],
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port=settings['server']['port']
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)
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if __name__ == "__main__":
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run()
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