/
sawmill.py
executable file
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/
sawmill.py
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#!/usr/bin/env python
from flask import Flask, render_template, redirect, url_for, request, flash
from flask import make_response, Markup, jsonify, json, session
import flask
import argparse
from os import environ
import random
from flask_login import LoginManager, login_user, login_required
from flask_login import logout_user, current_user
from flask_bcrypt import Bcrypt
import git
from database import db
from models.option import Option
from models.user import User
from models.log_entry import LogEntry
from conversions import bool_from_str
import base64
import itertools
try:
__revision__ = git.Repo('.').git.describe(tags=True, dirty=True,
always=True, abbrev=40)
except git.InvalidGitRepositoryError:
__revision__ = 'unknown'
DEFAULT_SAWMILL_DEBUG = False
DEFAULT_SAWMILL_PORT = 6892
DEFAULT_SAWMILL_DB_URI = 'sqlite:////tmp/test.db'
DEFAULT_SAWMILL_SECRET_KEY = None
def get_form_or_arg(name, default=None):
if name in request.form:
return request.form[name]
if name in request.args:
return request.args.get(name)
return default
def generate_app(db_uri=DEFAULT_SAWMILL_DB_URI,
secret_key=DEFAULT_SAWMILL_SECRET_KEY):
app = Flask(__name__)
app.secret_key = secret_key
login_manager = LoginManager()
login_manager.init_app(app)
app.login_manager = login_manager
login_manager.login_view = 'login'
app.bcrypt = Bcrypt(app)
app.config['SQLALCHEMY_DATABASE_URI'] = db_uri
db.init_app(app)
app.db = db
app.app_context().push()
class Options(object):
@staticmethod
def get(key, default_value=None):
option = Option.query.get(key)
if option is None:
return default_value
return option.value
@staticmethod
def get_title():
return Options.get('title', 'Sawmill')
@staticmethod
def get_revision():
return __revision__
@app.context_processor
def setup_options():
return {'opts': Options}
@app.route('/')
@login_required
def index():
server = get_form_or_arg('server')
filter_servers = session.get('filter_servers', [])
filter_log_names = session.get('filter_log_names', [])
query = LogEntry.query
if filter_servers:
query = query.filter(LogEntry.server.in_(filter_servers))
if filter_log_names:
query = query.filter(LogEntry.log_name.in_(filter_log_names))
query = query.order_by(LogEntry.id)
pager = query.paginate()
all_servers = (s[0] for s in db.session.query(LogEntry.server).distinct()
.order_by(LogEntry.server).all())
all_log_names = (l[0] for l in db.session.query(LogEntry.log_name)
.distinct().order_by(LogEntry.log_name).all())
return render_template('index.t.html', pager=pager,
all_servers=all_servers, server=server,
filter_servers=filter_servers,
all_log_names=all_log_names,
izipl=itertools.izip_longest,
filter_log_names=filter_log_names)
@app.route('/apply_filters', methods=["GET", "POST"])
@login_required
def apply_filters():
if request.method == 'GET':
return redirect(url_for('index'))
filter_servers = []
filter_log_names = []
for k in request.form:
if k.startswith('server_') and request.form[k]:
s = k[7:]
filter_servers.append(s)
if k.startswith('log_name_') and request.form[k]:
s = k[9:]
filter_log_names.append(s)
session['filter_servers'] = filter_servers
session['filter_log_names'] = filter_log_names
return redirect(url_for('index', filter_servers=filter_servers))
@login_manager.user_loader
def load_user(userid):
return User.query.filter_by(email=userid).first()
@login_manager.request_loader
def load_user_with_basic_auth(request):
api_key = request.headers.get('Authorization')
if api_key:
api_key = api_key.replace('Basic ', '', 1)
api_key = base64.b64decode(api_key)
email, password = api_key.split(':', 1)
user = User.query.filter_by(email=email).first()
if (user is None or
not app.bcrypt.check_password_hash(
user.hashed_password, password)):
return None
return user
@app.route('/login', methods=['GET', 'POST'])
def login():
if request.method == 'GET':
login_failed = request.args.get('login_failed')
return render_template('login.t.html', login_failed=login_failed)
email = request.form['email']
password = request.form['password']
user = User.query.filter_by(email=email).first()
next_url = (request.args.get('next') or request.args.get('next_url') or
url_for('index'))
if (user is None or
not app.bcrypt.check_password_hash(user.hashed_password,
password)):
flash('Username or Password is invalid', 'error')
return redirect(url_for('login', login_failed=1,
next_url=next_url))
login_user(user)
flash('Logged in successfully')
return redirect(next_url)
@app.route('/logout')
def logout():
logout_user()
return redirect(url_for('index'))
@app.route('/intake', methods=['POST'])
@login_required
def intake():
json = request.get_json()
timestamp = json['@timestamp']
server = json['host']
log_name = json['source']
message = json['message']
le = LogEntry(timestamp, server, log_name, message)
db.session.add(le)
db.session.commit()
return ('', 204)
return app
if __name__ == '__main__':
SAWMILL_DEBUG = bool_from_str(
environ.get('SAWMILL_DEBUG', DEFAULT_SAWMILL_DEBUG))
SAWMILL_PORT = environ.get('SAWMILL_PORT', DEFAULT_SAWMILL_PORT)
try:
SAWMILL_PORT = int(SAWMILL_PORT)
except:
SAWMILL_PORT = DEFAULT_SAWMILL_PORT
SAWMILL_DB_URI = environ.get('SAWMILL_DB_URI', DEFAULT_SAWMILL_DB_URI)
SAWMILL_SECRET_KEY = environ.get('SAWMILL_SECRET_KEY')
parser = argparse.ArgumentParser()
parser.add_argument('--debug', action='store_true', default=SAWMILL_DEBUG)
parser.add_argument('--port', action='store', default=SAWMILL_PORT,
type=int)
parser.add_argument('--create-db', action='store_true')
parser.add_argument('--db-uri', action='store', default=SAWMILL_DB_URI)
parser.add_argument('--secret-key', action='store',
default=SAWMILL_SECRET_KEY)
parser.add_argument('--create-secret-key', action='store_true')
parser.add_argument('--hash-password', action='store')
args = parser.parse_args()
SAWMILL_DEBUG = args.debug
SAWMILL_PORT = args.port
SAWMILL_DB_URI = args.db_uri
SAWMILL_SECRET_KEY = args.secret_key
print('__revision__: {}'.format(__revision__))
print('SAWMILL_DEBUG: {}'.format(SAWMILL_DEBUG))
print('SAWMILL_PORT: {}'.format(SAWMILL_PORT))
print('SAWMILL_DB_URI: {}'.format(SAWMILL_DB_URI))
app = generate_app(db_uri=args.db_uri, secret_key=args.secret_key)
if args.create_db:
print('Setting up the database')
app.db.create_all()
elif args.create_secret_key:
digits = '0123456789abcdef'
key = ''.join((random.choice(digits) for x in xrange(48)))
print(key)
elif args.hash_password is not None:
print(app.bcrypt.generate_password_hash(args.hash_password))
else:
app.run(debug=args.debug, port=args.port)