version 1.0.9 refresh

.dockerignore

@@ -0,0 +1,2 @@
+venv/*
+build/*

.gitignore

@@ -2,3 +2,5 @@
 venv/
 .venv
 .idea
+build
+!build/.gitkeep

Dockerfile.scratch

@@ -3,10 +3,10 @@ FROM python:3.7.9 as builder
 ARG VERSION
 ENV LC_ALL=en_NZ.utf8
 ENV LANG=en_NZ.utf8
-ENV APP_NAME="apikeyauthhandler"
+ENV APP_NAME="directdnsonly"
 
 RUN mkdir -p /tmp/build && apt-get update && \
-    apt-get install -y libgcc1-dbg
+    apt-get install -y libgcc1-dbg libssl-dev
 
 COPY src/ /tmp/build/
 COPY requirements.txt /tmp/build
@@ -22,8 +22,13 @@ RUN wget https://github.com/NixOS/patchelf/releases/download/0.12/patchelf-0.12.
 
 WORKDIR /tmp/build
 RUN pip3 install -r requirements.txt && \
-    pyinstaller --hidden-import=json \
+    pyinstaller \
+    --hidden-import=json \
+    --hidden-import=pyopenssl \
     --hidden-import=jaraco \
+    --hidden-import=cheroot \
+    --hidden-import=cheroot.ssl.pyopenssl \
+    --hidden-import=cheroot.ssl.builtin \
     --noconfirm --onefile ${APP_NAME}.py && \
     cd /tmp/build/dist && \
     staticx ${APP_NAME} ./${APP_NAME}_static
@@ -47,4 +52,4 @@ WORKDIR /app
 
 VOLUME /app/config /data
 
-CMD ["/app/apikeyauthhandler"]
+CMD ["/app/directdnsonly"]

requirements.txt

@@ -2,7 +2,8 @@ cherrypy==18.6.1
 pyyaml==5.3.1
 python-json-logger
 sqlalchemy==1.3.20
-pyinstaller==4.0
+pyinstaller==4.5.1
 patchelf-wrapper
 staticx
-
+pyopenssl
+persistqueue

src/directdnsonly.py

@@ -1,89 +1,100 @@
-import mmap
-
 import cherrypy
 from cherrypy import request
-from cherrypy._cpnative_server import CPHTTPServer
 from pythonjsonlogger import jsonlogger
+from persistqueue import Queue, Empty
 import logging
+from logging.handlers import TimedRotatingFileHandler
 import os
+import subprocess
 import time
 import sys
 import yaml
-import datetime
+import threading
 import lib.common
 import lib.db
 import lib.db.models
+import urllib.parse
 
 
 class DaDNS(object):
 
     @cherrypy.expose
-    def CMD_API_LOGIN_TEST(self, **params):
+    def CMD_API_LOGIN_TEST(self):
-        return 'error=0&text=Login OK&details=none'
+        return urllib.parse.urlencode({'error': 0,
+                                       'text': 'Login OK'})
 
     @cherrypy.expose
-    def CMD_API_DNS_ADMIN(self, **params):
+    def CMD_API_DNS_ADMIN(self):
-        applog.debug('Processing Method: ' + request.method)
+        applog.debug('Processing Method: '.format(request.method))
 
         if request.method == 'POST':
             action = request.params.get('action')
+            applog.debug('Action received via querystring: {}'.format(action))
+            body = str(request.body.read(), 'utf-8')
             decoded_params = None
             if action is None:
-                decoded_params = decode_params(str(request.body.read(), 'utf-8'))
+                applog.debug('Action was not specified, check body')
+                decoded_params = decode_params(str(body))
+                applog.debug('Parameters decoded: {}'.format(decoded_params))
                 action = decoded_params['action']
-            zone_file = str(request.body.read(), 'utf-8')
+            zone_file = body
             applog.debug(zone_file)
             if action == 'delete':
+                # TODO: Support multiple domain deletion
                 # Domain is being removed from the DNS
-                hostname = decoded_params['hostname']
+                queue_item('delete', {'hostname': decoded_params['hostname'],
-                domain = decoded_params['select0']
+                                      'domain': decoded_params['select0']})
-                record = session.query(lib.db.models.Domain).filter_by(domain=domain).one()
+                return urllib.parse.urlencode({'error': 0})
-                if record.hostname == hostname:
-                    applog.debug('Hostname matches the original host {}: Delete is allowed'.format('hostname'))
-                    session.delete(record)
-                    applog.info('{} deleted from database')
-                    write_named_include()
             if action == 'rawsave':
                 # DirectAdmin wants to add/update a domain
-                hostname = request.params.get('hostname')
+                queue_item('save', {'hostname': request.params.get('hostname'),
-                username = request.params.get('username')
+                                    'username': request.params.get('username'),
-                domain = request.params.get('domain')
+                                    'domain': request.params.get('domain'),
-                applog.debug('Domain name to check: ' + domain)
+                                    'zone_file': zone_file})
-                applog.debug('Does zone exist? ' + str(check_zone_exists(str(domain))))
+                applog.info('Enqueued {} request for {}'.format('save', request.params.get('domain')))
-                if not check_zone_exists(str(domain)):
+                return urllib.parse.urlencode({'error': 0})
-                    applog.debug('Zone is not present in db')
-                    put_zone_index(str(domain), str(hostname), str(username))
-                    write_zone_file(str(domain), zone_file)
-                else:
-                    # Domain already exists
-                    applog.debug('Zone is present in db')
-                    write_zone_file(str(domain), zone_file)
         elif request.method == 'GET':
             applog.debug('Action Type: ' + request.params.get('action'))
             action = request.params.get('action')
-            if action == 'exists':
+            check_parent = bool(request.params.get('check_for_parent_domain'))
+            if action == 'exists' and check_parent:
+                domain_result = check_zone_exists(request.params.get('domain'))
+                applog.debug('Domain result: {}'.format(domain_result))
+                parent_result = check_parent_domain_owner(request.params.get('domain'))
+                applog.debug('Domain result: {}'.format(domain_result))
+                if not domain_result and not parent_result:
+                    return urllib.parse.urlencode({'error': 0,
+                                                  'exists': 0})
+                elif domain_result:
+                    domain_record = session.query(lib.db.models.Domain).filter_by(
+                        domain=request.params.get('domain')).one()
+                    return urllib.parse.urlencode({'error': 0,
+                                                   'exists': 1,
+                                                   'details': 'Domain exists on {}'
+                                                   .format(domain_record.hostname)
+                                                   })
+                elif parent_result:
+                    parent_domain = ".".join(request.params.get('domain').split('.')[1:])
+                    domain_record = session.query(lib.db.models.Domain).filter_by(
+                        domain=parent_domain).one()
+                    return urllib.parse.urlencode({'error': 0,
+                                                   'exists': 2,
+                                                   'details': 'Parent Domain exists on {}'
+                                                   .format(domain_record.hostname)
+                                                   })
+
+            elif action == 'exists':
                 # DirectAdmin is checking whether the domain is in the cluster
                 if check_zone_exists(request.params.get('domain')):
-                    return 'result: exists=1'
+                    domain_record = session.query(lib.db.models.Domain).filter_by(
+                        domain=request.params.get('domain')).one()
+                    return urllib.parse.urlencode({'error': 0,
+                                                   'exists': 1,
+                                                   'details': 'Domain exists on {}'
+                                                   .format(domain_record.hostname)
+                                                   })
                 else:
-                    return 'result: exists=0'
+                    return urllib.parse.urlencode({'exists': 0})
-
-
-def create_zone_index():
-    # Create an index of all zones present from zone definitions
-    regex = r"(?<=\")(?P<domain>.*)(?=\"\s)"
-
-    with open(zone_index_file, 'w+') as f:
-        with open(named_conf, 'r') as named_file:
-            while True:
-                # read line
-                line = named_file.readline()
-                if not line:
-                    # Reached end of file
-                    break
-                print(line)
-                hosted_domain = re.search(regex, line).group(0)
-                f.write(hosted_domain + "\n")
 
 
 def put_zone_index(zone_name, host_name, user_name):
@@ -94,6 +105,21 @@ def put_zone_index(zone_name, host_name, user_name):
     session.commit()
 
 
+def queue_item(action, data=None):
+    data = {'payload': data}
+    if action == 'save':
+        save_queue.put(data)
+    elif action == 'delete':
+        delete_queue.put(data)
+
+
+def delete_zone_file(zone_name):
+    # Delete the zone file
+    applog.debug('Zone Name for delete: ' + zone_name)
+    os.remove(zones_dir + '/' + zone_name + '.db')
+    applog.debug('Zone deleted: {}'.format(zones_dir + '/' + zone_name + '.db'))
+
+
 def write_zone_file(zone_name, data):
     # Write the zone to file
     applog.debug('Zone Name for write: ' + zone_name)
@@ -109,13 +135,13 @@ def write_named_include():
     with open(named_conf, 'w') as f:
         for domain in domains:
             applog.debug('Writing zone {} to named.config'.format(domain.domain))
-            f.write('zone "{}" 	{ type master; file "/etc/pdns/zones/{}.db"; };'
+            f.write('zone "' + domain.domain
-                    .format(domain.domain,
+                    + '" { type master; file "' + zones_dir + '/'
-                            domain.domain))
+                    + domain.domain + '.db"; };\n')
 
 
-def check_parent_domain_owner(zone_name, owner):
+def check_parent_domain_owner(zone_name):
-    applog.debug('Checking if {} is owner of parent in the DB'.format(zone_name))
+    applog.debug('Checking if {} exists in the DB'.format(zone_name))
     # check try to find domain name
     parent_domain = ".".join(zone_name.split('.')[1:])
     domain_exists = session.query(session.query(lib.db.models.Domain).filter_by(domain=parent_domain).exists()).scalar()
@@ -124,16 +150,60 @@ def check_parent_domain_owner(zone_name, owner):
         applog.debug('{} exists in db'.format(parent_domain))
         domain_record = session.query(lib.db.models.Domain).filter_by(domain=parent_domain).one()
         applog.debug(str(domain_record))
-        if domain_record.username == owner:
+        return True
-            return True
+    else:
-        else:
+        return False
-            return False
+
+
+def reconfigure_nameserver():
+    env = dict(os.environ)  # make a copy of the environment
+    lp_key = 'LD_LIBRARY_PATH'  # for Linux and *BSD
+    lp_orig = env.get(lp_key + '_ORIG')  # pyinstaller >= 20160820
+    if lp_orig is not None:
+        env[lp_key] = lp_orig  # restore the original
+    else:
+        env.pop(lp_key, None)  # last resort: remove the env var
+
+    reconfigure = subprocess.run(['rndc', 'reconfig'],
+                                 capture_output=True,
+                                 universal_newlines=True,
+                                 env=env)
+    applog.debug("Stdout: {}".format(reconfigure.stdout))
+    applog.info('Reloaded bind')
+
+
+def reload_nameserver(zone=None):
+    # Workaround for LD_LIBRARY_PATH/ LIBPATH issues
+    #
+    env = dict(os.environ)  # make a copy of the environment
+    lp_key = 'LD_LIBRARY_PATH'  # for Linux and *BSD
+    lp_orig = env.get(lp_key + '_ORIG')  # pyinstaller >= 20160820
+    if lp_orig is not None:
+        env[lp_key] = lp_orig  # restore the original
+    else:
+        env.pop(lp_key, None)  # last resort: remove the env var
+
+    if zone is not None:
+        reload = subprocess.run(['rndc', 'reload', zone],
+                                capture_output=True,
+                                universal_newlines=True,
+                                env=env)
+        applog.debug("Stdout: {}".format(reload.stdout))
+        applog.info('Reloaded bind for {}'.format(zone))
+    else:
+        reload = subprocess.run(['rndc', 'reload'],
+                                capture_output=True,
+                                universal_newlines=True,
+                                env=env)
+        applog.debug("Stdout: {}".format(reload.stdout))
+        applog.info('Reloaded bind')
 
 
 def check_zone_exists(zone_name):
     # Check if zone is present in the index
     applog.debug('Checking if {} is present in the DB'.format(zone_name))
-    domain_exists = session.query(session.query(lib.db.models.Domain).filter_by(domain=zone_name).exists()).scalar()
+    domain_exists = bool(session.query(lib.db.models.Domain.id).filter_by(domain=zone_name).first())
+    applog.debug('Returned from query: {}'.format(domain_exists))
     if domain_exists:
         return True
     else:
@@ -149,18 +219,64 @@ def decode_params(payload):
     return params
 
 
-@cherrypy.expose
+def background_thread(worker_type):
-@cherrypy.tools.json_out()
+    if worker_type == 'save':
-def health(self):
+        applog.debug('Started worker thread for save action')
-    # Defaults to 200
+        while True:
-    return {"Message": "OK!"}
+            try:
+                item = save_queue.get(block=True, timeout=10)
+                data = item['payload']
+                applog.info('Processing save from queue for {}'.format(data['domain']))
+                applog.debug('Domain name to check: ' + data['domain'])
+                applog.debug('Does zone exist? ' + str(check_zone_exists(str(data['domain']))))
+                if not check_zone_exists(str(data['domain'])):
+                    applog.debug('Zone is not present in db')
+                    put_zone_index(str(data['domain']), str(data['hostname']), str(data['username']))
+                    write_zone_file(str(data['domain']), data['zone_file'])
+                    write_named_include()
+                    reconfigure_nameserver()
+                    reload_nameserver(str(data['domain']))
+                else:
+                    # Domain already exists
+                    applog.debug('Zone is present in db')
+                    write_zone_file(str(data['domain']), data['zone_file'])
+                    write_named_include()
+                    reload_nameserver(str(data['domain']))
+                save_queue.task_done()
+
+            except Empty:
+                # Queue is empty
+                applog.debug('Save queue is empty')
+    elif worker_type == 'delete':
+        applog.debug('Started worker thread for delete action')
+        while True:
+            try:
+                item = delete_queue.get(block=True, timeout=10)
+                data = item['payload']
+                applog.info('Processing deletion from queue for {}'.format(data['domain']))
+                record = session.query(lib.db.models.Domain).filter_by(domain=data['domain']).one()
+                if record.hostname == data['hostname']:
+                    applog.debug('Hostname matches the original host {}: Delete is allowed'.format(data['domain']))
+                    session.delete(record)
+                    session.commit()
+                    applog.info('{} deleted from database'.format(data['domain']))
+                    delete_zone_file(data['domain'])
+                    write_named_include()
+                    reload_nameserver()
+                delete_queue.task_done()
+                time.sleep(5)
+            except Empty:
+                # Queue is empty
+                applog.debug('Delete queue is empty')
+            except Exception as e:
+                applog.error(e)
 
 
 def setup_logging():
     os.environ['TZ'] = config['timezone']
     time.tzset()
-    applog = logging.getLogger()
+    _applog = logging.getLogger()
-    applog.setLevel(level=getattr(logging, config['log_level'].upper()))
+    _applog.setLevel(level=getattr(logging, config['log_level'].upper()))
     if config['log_to'] == 'stdout':
         handler = logging.StreamHandler(sys.stdout)
         handler.setLevel(level=getattr(logging, config['log_level'].upper()))
@@ -168,41 +284,53 @@ def setup_logging():
             fmt='%(asctime)s %(levelname)s %(message)s'
         )
         handler.setFormatter(formatter)
-        applog.addHandler(handler)
+        _applog.addHandler(handler)
     elif config['log_to'] == 'file':
-        handler = logging.FileHandler('./config/directdns.log')
+        handler = TimedRotatingFileHandler(config['log_path'],
+                                           when='midnight',
+                                           backupCount=10)
         handler.setLevel(level=getattr(logging, config['log_level'].upper()))
         formatter = jsonlogger.JsonFormatter(
             fmt='%(asctime)s %(levelname)s %(message)s'
         )
         handler.setFormatter(formatter)
-        applog.addHandler(handler)
+        _applog.addHandler(handler)
-    return applog
+    return _applog
 
 
 if __name__ == '__main__':
-    app_version = "1.0.0"
+    app_version = "1.0.9"
     if os.path.isfile("/lib/x86_64-linux-gnu/" + "libgcc_s.so.1"):
         # Load local library
         libgcc_s = ctypes.cdll.LoadLibrary("/lib/x86_64-linux-gnu/" + "libgcc_s.so.1")
     # We are about to start our application
-    with open(r'config/app.yml') as config_file:
+    with open(r'conf/app.yml') as config_file:
         config = yaml.load(config_file, Loader=yaml.SafeLoader)
     applog = setup_logging()
     applog.info('DirectDNS Starting')
     applog.info('Timezone is {}'.format(config['timezone']))
     applog.info('Get Database Connection')
-    session = lib.db.connect()
+    session = lib.db.connect(config['db_location'])
     applog.info('Database Connected!')
 
-    zones_dir = "/etc/pdns/zones"
+    zones_dir = "/etc/named/directdnsonly"
-    named_conf = "/etc/pdns/named.conf"
+    named_conf = "/etc/named/directdnsonly.inc"
+
+    save_queue = Queue(config['queue_location'] + '/rawsave')
+    save_thread = threading.Thread(target=background_thread, args=('save',))
+    save_thread.daemon = True  # Daemonize thread
+    save_thread.start()  # Start the execution
+    delete_queue = Queue(config['queue_location'] + '/delete')
+    delete_thread = threading.Thread(target=background_thread, args=('delete',))
+    delete_thread.daemon = True  # Daemonize thread
+    delete_thread.start()  # Start the execution
 
     cherrypy.__version__ = ''
     cherrypy._cperror._HTTPErrorTemplate = cherrypy._cperror._HTTPErrorTemplate.replace(
         'Powered by <a href="http://www.cherrypy.org">CherryPy %(version)s</a>\n', '%(version)s')
-    userpassdict = {'test': 'test'}
+
-    checkpassword = cherrypy.lib.auth_basic.checkpassword_dict(userpassdict)
+    user_password_dict = {'test': 'test'}
+    check_password = cherrypy.lib.auth_basic.checkpassword_dict(user_password_dict)
 
     cherrypy.config.update({
         'server.socket_host': '0.0.0.0',
@@ -211,13 +339,23 @@ if __name__ == '__main__':
         'tools.proxy.base': config['proxy_support_base'],
         'tools.auth_basic.on': True,
         'tools.auth_basic.realm': 'dadns',
-        'tools.auth_basic.checkpassword': checkpassword,
+        'tools.auth_basic.checkpassword': check_password,
         'tools.response_headers.on': True,
         'tools.response_headers.headers': [('Server', 'DirectDNS v' + app_version)],
         'environment': config['environment']
     })
+
+    if bool(config['ssl_enable']):
+        cherrypy.config.update({
+            'server.ssl_module': 'builtin',
+            'server.ssl_certificate': config['ssl_cert'],
+            'server.ssl_private_key': config['ssl_key'],
+            'server.ssl_certificate_chain': config['ssl_bundle']
+        })
+
     # cherrypy.log.error_log.propagate = False
-    # cherrypy.log.access_log.propagate = False
+    if config['log_level'].upper() != 'DEBUG':
+        cherrypy.log.access_log.propagate = False
 
     if not lib.common.check_if_super_user_exists(session):
         password_str = lib.common.get_random_string(35)

src/lib/db/__init__.py

@@ -6,9 +6,9 @@ import datetime
 Base = declarative_base()
 
 
-def connect():
+def connect(db_location):
     # Start SQLite engine
-    engine = create_engine('sqlite:///./config/keys.db', connect_args={'check_same_thread': False})
+    engine = create_engine('sqlite:///' + db_location, connect_args={'check_same_thread': False})
     Base.metadata.create_all(engine)
     Session = sessionmaker(bind=engine)
     session = Session()