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app.py
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#!/usr/bin/env python
from flask import Flask, jsonify, abort, make_response, request
from pymongo import MongoClient
import json
from bson import json_util
from pwgen import pwgen
from werkzeug.security import generate_password_hash, check_password_hash
from datetime import datetime
import os
from base64 import b64decode
app = Flask(__name__)
app.config.from_pyfile('config.cfg')
connection = MongoClient('localhost', 27017)
connection.mydb.authenticate(app.config['DBUSER'], app.config['DBPW'])
db = connection.mydb
@app.route('/')
def index():
#ip = request.environ['REMOTE_ADDR']
ip = request.remote_addr
return "<html><head><title>Current IP Check</title></head><body>Current IP Address: "+ip+"</body></html>"
@app.route('/ddns',methods=['GET'])
def get_subdomains():
if not 'token' in request.args or \
not check_password_hash(app.config['TOKEN'],request.args['token']):
abort(401)
results = db['subdomains'].find({ }, { 'subdomain': 1, 'ip': 1, '_id': 0 })
json_results = []
for result in results:
json_results.append(result)
return toJson(json_results)
@app.route('/ddns/info/<subdomain>',methods=['GET'])
def get_subdomain(subdomain):
if not 'token' in request.args or \
not check_password_hash(app.config['TOKEN'],request.args['token']):
abort(401)
result = db['subdomains'].find_one({'subdomain':subdomain},\
{'subdomain':1,'ip':1,'_id':0})
if result is None:
abort(404)
return toJson(result)
@app.route('/ddns/create',methods=['POST'])
def create_subdomain():
if not 'token' in request.json or \
not check_password_hash(app.config['TOKEN'],request.json['token']):
abort(401)
status = 'created'
if not request.json or not 'subdomain' in request.json or \
not 'username' in request.json:
return jsonify({'Comment': 'To create a subdomain, send...'}),400
if checksub(request.json['subdomain']):
return jsonify({'Comment':'Subdomain already exists'}),400
password = pwgen(10, no_symbols=True)
entry = {
'subdomain': request.json['subdomain'],
'username': request.json['username'],
'password': generate_password_hash(password),
'ip': '',
'last_update': '',
'created': datetime.utcnow()
}
db['subdomains'].insert(entry)
return jsonify({'state':'created','subdomain':entry['subdomain'],\
'username':entry['username'],'password':password}),201
@app.route('/ddns/update',methods=['GET'])
def update_subdomain():
if not 'subdomain' in request.args or not 'username' in request.args or \
not 'password' in request.args:
return jsonify({'Comment': 'To update a subdomain, send...'}),400
entry = getEntry(request.args['subdomain'])
if len(entry) == 0:
abort(404)
if not request.args['username'] == entry['username'] or \
not check_password_hash(entry['password'],request.args['password']):
abort(401)
if 'ip' in request.args:
ip = request.args['ip']
else:
ip = request.environ['REMOTE_ADDR']
db['subdomains'].update({'subdomain':entry['subdomain']},\
{'$set':{'ip':ip,'last_update':datetime.utcnow()}},\
upsert=False, multi=False)
updateDNS(entry,ip)
return jsonify({'result':'Subdomain updated.'})
@app.route('/nic/update',methods=['GET'])
def update_dyndnsStyle():
if not 'hostname' in request.args or not 'system' in request.args:
return jsonify({'Comment': 'To update a subdomain, send...'}),400
subdomain = request.args['hostname'].split('.')[0]
entry = getEntry(subdomain)
if len(entry) == 0:
abort(404)
header = b64decode(request.headers.get('Authorization').split()[1]).split(':')
if not header[0] == entry['username'] or \
not check_password_hash(entry['password'],header[1]):
abort(401)
if 'myip' in request.args:
ip = request.args['myip']
else:
ip = request.environ['REMOTE_ADDR']
db['subdomains'].update({'subdomain':entry['subdomain']},\
{'$set':{'ip':ip,'last_update':datetime.utcnow()}},\
upsert=False, multi=False)
updateDNS(entry,ip)
return 'good '+ip, 200
@app.route('/ddns/delete/<subdomain>', methods=['DELETE'])
def delete_subdomain(subdomain):
if not 'token' in request.args or \
not check_password_hash(app.config['TOKEN'],request.args['token']):
abort(401)
if checksub(subdomain):
entry = getEntry(subdomain)
db['subdomains'].remove({'subdomain':subdomain})
deleteDNS(entry)
return jsonify({'result':'Subdomain deleted.'})
abort(404)
def getEntry(subdomain):
entry = db['subdomains'].find_one({'subdomain':subdomain})
if entry is None:
entry = []
return entry
return entry
def checksub(subdomain):
entry = db['subdomains'].find_one({'subdomain':subdomain},\
{'subdomain':1,'_id':0})
if entry is None:
return False
return True
def toJson(data):
"""Convert Mongo object(s) to JSON"""
return json.dumps(data, default=json_util.default)
def deleteDNS(entry):
update = []
update.append('server '+app.config['DNSSERVER'])
update.append('zone '+app.config['ZONE'])
update.append('update delete '+entry['subdomain']+\
'.'+app.config['ZONE']+'.')
update.append('send')
opipe = os.popen(app.config['NSCMD']+app.config['DNSKEY'],'w')
for x in update:
opipe.write("%s\n" % x)
opipe.close()
def updateDNS(entry,ip):
update = []
update.append('server '+app.config['DNSSERVER'])
update.append('zone '+app.config['ZONE'])
update.append('update delete '+entry['subdomain']+\
'.'+app.config['ZONE']+'.')
update.append('update add '+entry['subdomain']+\
'.'+app.config['ZONE']+'. 60 A '+ip)
update.append('send')
opipe = os.popen(app.config['NSCMD']+app.config['DNSKEY'],'w')
for x in update:
opipe.write("%s\n" % x)
opipe.close()
@app.errorhandler(404)
def not_found(error):
return make_response(jsonify({'error': 'Not found'}), 404)
@app.errorhandler(401)
def not_found(error):
return make_response(jsonify({'error': 'Bad Auth'}), 401)
@app.errorhandler(400)
def not_found(error):
return make_response(jsonify({'error': 'Bad Request'}), 400)
if __name__ == '__main__':
app.run(debug=True,host='0.0.0.0')