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#!/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>
'''
import os
import sys
if __name__ == "__main__":
sys.path.append(os.path.realpath(os.path.dirname(os.path.realpath(__file__))+'/../'))
# first argument is for specifying settings module, used mostly by robot tests
from sys import argv
if len(argv) == 2:
from importlib import import_module
settings = import_module('searx.' + argv[1])
else:
from searx import settings
from flask import Flask, request, render_template, url_for, Response, make_response, redirect
from searx.engines import search, categories, engines, get_engines_stats
import json
import cStringIO
from searx.utils import UnicodeWriter
from flask import send_from_directory
from searx.utils import highlight_content, html_to_text
app = Flask(__name__)
app.secret_key = settings.secret_key
opensearch_xml = '''<?xml version="1.0" encoding="utf-8"?>
<OpenSearchDescription xmlns="http://a9.com/-/spec/opensearch/1.1/">
<ShortName>searx</ShortName>
<Description>Search searx</Description>
<InputEncoding>UTF-8</InputEncoding>
<LongName>searx meta search engine</LongName>
<Url type="text/html" method="{method}" template="{host}">
<Param name="q" value="{{searchTerms}}" />
</Url>
</OpenSearchDescription>
'''
def get_base_url():
if settings.base_url:
hostname = settings.base_url
else:
scheme = 'http'
if request.is_secure:
scheme = 'https'
hostname = url_for('index', _external=True, _scheme=scheme)
return hostname
def render(template_name, **kwargs):
global categories
kwargs['categories'] = sorted(categories.keys())
if not 'selected_categories' in kwargs:
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 len(kwargs['selected_categories']):
kwargs['selected_categories'] = ['general']
return render_template(template_name, **kwargs)
def parse_query(query):
query_engines = []
query_parts = query.split()
if query_parts[0].startswith('-') and query_parts[0][1:] in engines:
query_engines.append({'category': 'TODO', 'name': query_parts[0][1:]})
query = query.replace(query_parts[0], '', 1).strip()
return query, query_engines
@app.route('/', methods=['GET', 'POST'])
def index():
global categories
if request.method=='POST':
request_data = request.form
else:
request_data = request.args
if not request_data.get('q'):
return render('index.html')
selected_categories = []
query, selected_engines = parse_query(request_data['q'].encode('utf-8'))
if not len(selected_engines):
for pd_name,pd in request_data.items():
if pd_name.startswith('category_'):
category = pd_name[9:]
if not category in categories:
continue
selected_categories.append(category)
if not len(selected_categories):
cookie_categories = request.cookies.get('categories', '').split(',')
for ccateg in cookie_categories:
if ccateg in categories:
selected_categories.append(ccateg)
if not len(selected_categories):
selected_categories = ['general']
for categ in selected_categories:
selected_engines.extend({'category': categ, 'name': x.name} for x in categories[categ])
results, suggestions = search(query, request, selected_engines)
for result in results:
if request_data.get('format', 'html') == 'html':
if 'content' in result:
result['content'] = highlight_content(result['content'], query)
result['title'] = highlight_content(result['title'], query)
else:
if 'content' in result:
result['content'] = html_to_text(result['content']).strip()
result['title'] = html_to_text(result['title']).strip()
if len(result['url']) > 74:
result['pretty_url'] = result['url'][:35] + '[..]' + result['url'][-35:]
else:
result['pretty_url'] = result['url']
if request_data.get('format') == 'json':
return Response(json.dumps({'query': query, 'results': results}), mimetype='application/json')
elif request_data.get('format') == 'csv':
csv = UnicodeWriter(cStringIO.StringIO())
keys = ('title', 'url', 'content', 'host', 'engine', 'score')
if len(results):
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')
response.headers.add('Content-Disposition', 'attachment;Filename=searx_-_{0}.csv'.format('_'.join(query.split())))
return response
elif request_data.get('format') == 'rss':
response_rss = render('opensearch_response_rss.xml'
,results=results
,q=request_data['q']
,number_of_results=len(results)
,base_url=get_base_url()
)
return Response(response_rss, mimetype='text/xml')
return render('results.html'
,results=results
,q=request_data['q']
,selected_categories=selected_categories
,number_of_results=len(results)
,suggestions=suggestions
)
@app.route('/about', methods=['GET'])
def about():
global categories
return render('about.html', categs=categories.items())
@app.route('/preferences', methods=['GET', 'POST'])
def preferences():
if request.method=='POST':
selected_categories = []
for pd_name,pd in request.form.items():
if pd_name.startswith('category_'):
category = pd_name[9:]
if not category in categories:
continue
selected_categories.append(category)
if selected_categories:
resp = make_response(redirect('/'))
# cookie max age: 4 weeks
resp.set_cookie('categories', ','.join(selected_categories), max_age=60*60*24*7*4)
return resp
return render('preferences.html')
@app.route('/stats', methods=['GET'])
def stats():
global categories
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
""", mimetype='text/plain')
@app.route('/opensearch.xml', methods=['GET'])
def opensearch():
global opensearch_xml
method = 'post'
# chrome/chromium only supports HTTP GET....
if request.headers.get('User-Agent', '').lower().find('webkit') >= 0:
method = 'get'
base_url = get_base_url()
ret = opensearch_xml.format(method=method, host=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/img'),
'favicon.png', mimetype='image/vnd.microsoft.icon')
def run():
from gevent import monkey
monkey.patch_all()
app.run(debug = settings.debug
,use_debugger = settings.debug
,port = settings.port
)
if __name__ == "__main__":
run()
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