import json import os from pathlib import Path import uuid from flask import Flask, render_template, request, Response, redirect, url_for from flask_mail import Mail, Message from flask_bootstrap import Bootstrap from flask_wtf import FlaskForm from wtforms import StringField, SubmitField from wtforms.widgets import TextInput from wtforms.validators import Required import logging from logging.handlers import RotatingFileHandler from logging import Formatter from redis import Redis from urlabuse.helpers import get_socket_path from urlabuse.urlabuse import Query import configparser from .proxied import ReverseProxied config_dir = Path('config') class AngularTextInput(TextInput): def __call__(self, field, **kwargs): kwargs['ng-model'] = 'input_url' return super(AngularTextInput, self).__call__(field, **kwargs) class URLForm(FlaskForm): url = StringField('URL Field', description='Enter the URL you want to lookup here.', validators=[Required()], widget=AngularTextInput()) submit_button = SubmitField('Run lookup') def make_dict(parser, section): to_return = {} entries = parser.items(section) for k, v in entries: to_return[k] = v.split(',') return to_return def prepare_auth(): if not os.path.exists('users.key'): return None to_return = {} with open('users.key', 'r') as f: for line in f: line = line.strip() user, password = line.split('=') to_return[user] = password return to_return def create_app(configfile=None): app = Flask(__name__) handler = RotatingFileHandler('urlabuse.log', maxBytes=10000, backupCount=5) handler.setFormatter(Formatter('%(asctime)s %(message)s')) app.wsgi_app = ReverseProxied(app.wsgi_app) app.logger.addHandler(handler) app.logger.setLevel(logging.INFO) Bootstrap(app) queue = Redis(unix_socket_path=get_socket_path('cache'), db=0, decode_responses=True) urlabuse_query = Query() # Mail Config app.config['MAIL_SERVER'] = 'localhost' app.config['MAIL_PORT'] = 25 mail = Mail(app) app.config['SECRET_KEY'] = 'devkey' app.config['BOOTSTRAP_SERVE_LOCAL'] = True app.config['configfile'] = config_dir / 'config.ini' parser = configparser.SafeConfigParser() parser.read(app.config['configfile']) replacelist = make_dict(parser, 'replacelist') auth_users = prepare_auth() ignorelist = [i.strip() for i in parser.get('abuse', 'ignore').split('\n') if len(i.strip()) > 0] autosend_threshold = 5 def _get_user_ip(request): ip = request.headers.get('X-Forwarded-For') if ip is None: ip = request.remote_addr return ip @app.route('/', methods=['GET', 'POST']) def index(): if request.method == 'HEAD': # Just returns ack if the webserver is running return 'Ack' form = URLForm() return render_template('index.html', form=form) @app.route('/urlreport', methods=['GET']) def url_report(): return render_template('url-report.html') @app.errorhandler(404) def page_not_found(e): ip = request.headers.get('X-Forwarded-For') if ip is None: ip = request.remote_addr if request.path != '/_result/': app.logger.info('404 of {} on {}'.format(ip, request.path)) return render_template('404.html'), 404 def authenticate(): """Sends a 401 response that enables basic auth""" return Response('Could not verify your access level for that URL.\n' 'You have to login with proper credentials', 401, {'WWW-Authenticate': 'Basic realm="Login Required"'}) def check_auth(username, password): """This function is called to check if a username / password combination is valid. """ if auth_users is None: return False else: db_pass = auth_users.get(username) return db_pass == password @app.route('/login', methods=['GET', 'POST']) def login(): auth = request.authorization if not auth or not check_auth(auth.username, auth.password): return authenticate() return redirect(url_for('index')) @app.route("/_result/", methods=['GET']) def check_valid(job_key): if not job_key or not queue.exists(job_key): return Response(json.dumps(None), mimetype='application/json'), 200 if not queue.hexists(job_key, 'result'): return Response(json.dumps('Nay!'), mimetype='application/json'), 202 result = queue.hget(job_key, 'result') queue.delete(job_key) return Response(result, mimetype='application/json'), 200 def enqueue(method, data): job_id = str(uuid.uuid4()) p = queue.pipeline() p.hmset(job_id, {'method': method, 'data': json.dumps(data)}) p.sadd('to_process', job_id) p.execute() return job_id @app.route('/start', methods=['POST']) def run_query(): data = request.get_json(force=True) url = data["url"] ip = _get_user_ip(request) app.logger.info(f'{ip} {url}') if urlabuse_query.get_submissions(url) and urlabuse_query.get_submissions(url) >= autosend_threshold: send(url, '', True) return enqueue('is_valid_url', {'url': url}) @app.route('/urls', methods=['POST']) def urls(): data = request.get_json(force=True) return enqueue('url_list', {'url': data["url"]}) @app.route('/resolve', methods=['POST']) def resolve(): data = request.get_json(force=True) return enqueue('dns_resolve', {'url': data["url"]}) def read_auth(name): key = config_dir / f'{name}.key' if not key.exists(): return '' with open(key) as f: to_return = [] for line in f.readlines(): to_return.append(line.strip()) return to_return @app.route('/phishtank', methods=['POST']) def phishtank(): auth = read_auth('phishtank') if not auth: return '' data = request.get_json(force=True) return enqueue('phish_query', {'url': parser.get("PHISHTANK", "url"), 'key': auth[0], 'query': data["query"]}) @app.route('/virustotal_report', methods=['POST']) def vt(): auth = read_auth('virustotal') if not auth: return '' data = request.get_json(force=True) return enqueue('vt_query_url', {'url': parser.get("VIRUSTOTAL", "url_report"), 'url_up': parser.get("VIRUSTOTAL", "url_upload"), 'key': auth[0], 'query': data["query"]}) @app.route('/googlesafebrowsing', methods=['POST']) def gsb(): auth = read_auth('googlesafebrowsing') if not auth: return '' key = auth[0] data = request.get_json(force=True) url = parser.get("GOOGLESAFEBROWSING", "url").format(key) return enqueue('gsb_query', {'url': url, 'query': data["query"]}) ''' @app.route('/urlquery', methods=['POST']) def urlquery(): auth = read_auth('urlquery') if not auth: return '' key = auth[0] data = json.loads(request.data.decode()) url = parser.get("URLQUERY", "url") query = data["query"] u = q.enqueue_call(func=urlquery_query, args=(url, key, query,), result_ttl=500) return u.get_id() @app.route('/ticket', methods=['POST']) def ticket(): if not request.authorization: return '' data = json.loads(request.data.decode()) server = parser.get("SPHINX", "server") port = int(parser.get("SPHINX", "port")) url = parser.get("ITS", "url") query = data["query"] u = q.enqueue_call(func=sphinxsearch, args=(server, port, url, query,), result_ttl=500) return u.get_id() ''' @app.route('/whois', methods=['POST']) def whoismail(): data = request.get_json(force=True) return enqueue('whois', {'server': parser.get("WHOIS", "server"), 'port': parser.getint("WHOIS", "port"), 'domain': data["query"], 'ignorelist': ignorelist, 'replacelist': replacelist}) @app.route('/eupi', methods=['POST']) def eu(): auth = read_auth('eupi') if not auth: return '' data = request.get_json(force=True) return enqueue('eupi', {'url': parser.get("EUPI", "url"), 'key': auth[0], 'q': data["query"]}) @app.route('/pdnscircl', methods=['POST']) def dnscircl(): auth = read_auth('pdnscircl') if not auth: return '' user, password = auth url = parser.get("PDNS_CIRCL", "url") data = request.get_json(force=True) return enqueue('pdnscircl', {'url': url, 'user': user.strip(), 'passwd': password.strip(), 'q': data["query"]}) @app.route('/bgpranking', methods=['POST']) def bgpr(): data = request.get_json(force=True) return enqueue('bgpranking', {'ip': data["query"]}) @app.route('/psslcircl', methods=['POST']) def sslcircl(): auth = read_auth('psslcircl') if not auth: return '' user, password = auth url = parser.get("PSSL_CIRCL", "url") data = request.get_json(force=True) return enqueue('psslcircl', {'url': url, 'user': user.strip(), 'passwd': password.strip(), 'q': data["query"]}) @app.route('/get_cache', methods=['POST']) def get_cache(): data = request.get_json(force=True) url = data["query"] if 'digest' in data: digest = data["digest"] else: digest = False data = urlabuse_query.cached(url, digest) return Response(json.dumps(data), mimetype='application/json') def send(url, ip='', autosend=False): if not urlabuse_query.get_mail_sent(url): data = urlabuse_query.cached(url, digest=True) if not autosend: subject = 'URL Abuse report from ' + ip else: subject = 'URL Abuse report sent automatically' msg = Message(subject, sender='urlabuse@circl.lu', recipients=["info@circl.lu"]) msg.body = data['digest'][0] msg.body += '\n\n' msg.body += json.dumps(data['result'], sort_keys=True, indent=2) mail.send(msg) urlabuse_query.set_mail_sent(url) @app.route('/submit', methods=['POST']) def send_mail(): data = request.get_json(force=True) url = data["url"] if not urlabuse_query.get_mail_sent(url): ip = _get_user_ip(request) send(url, ip) return redirect(url_for('index')) return app