mailcow/data/Dockerfiles/dockerapi/server.py

268 lines
12 KiB
Python

from flask import Flask
from flask_restful import Resource, Api
from flask import jsonify
from flask import request
from threading import Thread
from OpenSSL import crypto
import docker
import uuid
import signal
import time
import os
import re
import sys
import ssl
import socket
docker_client = docker.DockerClient(base_url='unix://var/run/docker.sock', version='auto')
app = Flask(__name__)
api = Api(app)
class containers_get(Resource):
def get(self):
containers = {}
try:
for container in docker_client.containers.list(all=True):
containers.update({container.attrs['Id']: container.attrs})
return containers
except Exception as e:
return jsonify(type='danger', msg=str(e))
class container_get(Resource):
def get(self, container_id):
if container_id and container_id.isalnum():
try:
for container in docker_client.containers.list(all=True, filters={"id": container_id}):
return container.attrs
except Exception as e:
return jsonify(type='danger', msg=str(e))
else:
return jsonify(type='danger', msg='no or invalid id defined')
class container_post(Resource):
def post(self, container_id, post_action):
if container_id and container_id.isalnum() and post_action:
if post_action == 'stop':
try:
for container in docker_client.containers.list(all=True, filters={"id": container_id}):
container.stop()
return jsonify(type='success', msg='command completed successfully')
except Exception as e:
return jsonify(type='danger', msg=str(e))
elif post_action == 'start':
try:
for container in docker_client.containers.list(all=True, filters={"id": container_id}):
container.start()
return jsonify(type='success', msg='command completed successfully')
except Exception as e:
return jsonify(type='danger', msg=str(e))
elif post_action == 'restart':
try:
for container in docker_client.containers.list(all=True, filters={"id": container_id}):
container.restart()
return jsonify(type='success', msg='command completed successfully')
except Exception as e:
return jsonify(type='danger', msg=str(e))
elif post_action == 'exec':
if not request.json or not 'cmd' in request.json:
return jsonify(type='danger', msg='cmd is missing')
if request.json['cmd'] == 'df' and request.json['dir']:
try:
for container in docker_client.containers.list(filters={"id": container_id}):
# Should be changed to be able to validate a path
directory = re.sub('[^0-9a-zA-Z/]+', '', request.json['dir'])
df_return = container.exec_run(["/bin/bash", "-c", "/bin/df -H " + directory + " | /usr/bin/tail -n1 | /usr/bin/tr -s [:blank:] | /usr/bin/tr ' ' ','"], user='nobody')
if df_return.exit_code == 0:
return df_return.output.rstrip()
else:
return "0,0,0,0,0,0"
except Exception as e:
return jsonify(type='danger', msg=str(e))
elif request.json['cmd'] == 'sieve_list' and request.json['username']:
try:
for container in docker_client.containers.list(filters={"id": container_id}):
sieve_return = container.exec_run(["/bin/bash", "-c", "/usr/local/bin/doveadm sieve list -u '" + request.json['username'].replace("'", "'\\''") + "'"], user='vmail')
return sieve_return.output
except Exception as e:
return jsonify(type='danger', msg=str(e))
elif request.json['cmd'] == 'sieve_print' and request.json['script_name'] and request.json['username']:
try:
for container in docker_client.containers.list(filters={"id": container_id}):
sieve_return = container.exec_run(["/bin/bash", "-c", "/usr/local/bin/doveadm sieve get -u '" + request.json['username'].replace("'", "'\\''") + "' '" + request.json['script_name'].replace("'", "'\\''") + "'"], user='vmail')
return sieve_return.output
except Exception as e:
return jsonify(type='danger', msg=str(e))
# not in use...
elif request.json['cmd'] == 'mail_crypt_generate' and request.json['username'] and request.json['old_password'] and request.json['new_password']:
try:
for container in docker_client.containers.list(filters={"id": container_id}):
# create if missing
crypto_generate = container.exec_run(["/bin/bash", "-c", "/usr/local/bin/doveadm mailbox cryptokey generate -u '" + request.json['username'].replace("'", "'\\''") + "' -URf"], user='vmail')
if crypto_generate.exit_code == 0:
# open a shell, bind stdin and return socket
cryptokey_shell = container.exec_run(["/bin/bash"], stdin=True, socket=True, user='vmail')
# command to be piped to shell
cryptokey_cmd = "/usr/local/bin/doveadm mailbox cryptokey password -u '" + request.json['username'].replace("'", "'\\''") + "' -n '" + request.json['new_password'].replace("'", "'\\''") + "' -o '" + request.json['old_password'].replace("'", "'\\''") + "'\n"
# socket is .output
cryptokey_socket = cryptokey_shell.output;
try :
# send command utf-8 encoded
cryptokey_socket.sendall(cryptokey_cmd.encode('utf-8'))
# we won't send more data than this
cryptokey_socket.shutdown(socket.SHUT_WR)
except socket.error:
# exit on socket error
return jsonify(type='danger', msg=str('socket error'))
# read response
cryptokey_response = recv_socket_data(cryptokey_socket)
crypto_error = re.search('dcrypt_key_load_private.+failed.+error', cryptokey_response)
if crypto_error is not None:
return jsonify(type='danger', msg=str("dcrypt_key_load_private error"))
return jsonify(type='success', msg=str("key pair generated"))
else:
return jsonify(type='danger', msg=str(crypto_generate.output))
except Exception as e:
return jsonify(type='danger', msg=str(e))
elif request.json['cmd'] == 'maildir_cleanup' and request.json['maildir']:
try:
for container in docker_client.containers.list(filters={"id": container_id}):
sane_name = re.sub(r'\W+', '', request.json['maildir'])
maildir_cleanup = container.exec_run(["/bin/bash", "-c", "if [[ -d '/var/vmail/" + request.json['maildir'].replace("'", "'\\''") + "' ]]; then /bin/mv '/var/vmail/" + request.json['maildir'].replace("'", "'\\''") + "' '/var/vmail/_garbage/" + str(int(time.time())) + "_" + sane_name + "'; fi"], user='vmail')
if maildir_cleanup.exit_code == 0:
return jsonify(type='success', msg=str("moved to garbage"))
else:
return jsonify(type='danger', msg=str(maildir_cleanup.output))
except Exception as e:
return jsonify(type='danger', msg=str(e))
elif request.json['cmd'] == 'worker_password' and request.json['raw']:
try:
for container in docker_client.containers.list(filters={"id": container_id}):
worker_shell = container.exec_run(["/bin/bash"], stdin=True, socket=True, user='_rspamd')
worker_cmd = "/usr/bin/rspamadm pw -e -p '" + request.json['raw'].replace("'", "'\\''") + "' 2> /dev/null\n"
worker_socket = worker_shell.output;
try :
worker_socket.sendall(worker_cmd.encode('utf-8'))
worker_socket.shutdown(socket.SHUT_WR)
except socket.error:
return jsonify(type='danger', msg=str('socket error'))
worker_response = recv_socket_data(worker_socket)
matched = False
for line in worker_response.split("\n"):
if '$2$' in line:
matched = True
hash = line.strip()
hash_out = re.search('\$2\$.+$', hash).group(0)
f = open("/access.inc", "w")
f.write('enable_password = "' + re.sub('[^0-9a-zA-Z\$]+', '', hash_out.rstrip()) + '";\n')
f.close()
container.restart()
if matched:
return jsonify(type='success', msg='command completed successfully')
else:
return jsonify(type='danger', msg='command did not complete')
except Exception as e:
return jsonify(type='danger', msg=str(e))
elif request.json['cmd'] == 'mailman_password' and request.json['email'] and request.json['passwd']:
try:
for container in docker_client.containers.list(filters={"id": container_id}):
add_su = container.exec_run(["/bin/bash", "-c", "/opt/mm_web/add_su.py '" + request.json['passwd'].replace("'", "'\\''") + "' '" + request.json['email'].replace("'", "'\\''") + "'"], user='mailman')
if add_su.exit_code == 0:
return jsonify(type='success', msg='command completed successfully')
else:
return jsonify(type='danger', msg='command did not complete, exit code was ' + int(add_su.exit_code))
except Exception as e:
return jsonify(type='danger', msg=str(e))
else:
return jsonify(type='danger', msg='Unknown command')
else:
return jsonify(type='danger', msg='invalid action')
else:
return jsonify(type='danger', msg='invalid container id or missing action')
class GracefulKiller:
kill_now = False
def __init__(self):
signal.signal(signal.SIGINT, self.exit_gracefully)
signal.signal(signal.SIGTERM, self.exit_gracefully)
def exit_gracefully(self, signum, frame):
self.kill_now = True
def startFlaskAPI():
create_self_signed_cert()
try:
ctx = ssl.create_default_context(ssl.Purpose.CLIENT_AUTH)
ctx.check_hostname = False
ctx.load_cert_chain(certfile='/cert.pem', keyfile='/key.pem')
except:
print "Cannot initialize TLS, retrying in 5s..."
time.sleep(5)
app.run(debug=False, host='0.0.0.0', port=443, threaded=True, ssl_context=ctx)
def recv_socket_data(c_socket, timeout=10):
c_socket.setblocking(0)
total_data=[];
data='';
begin=time.time()
while True:
if total_data and time.time()-begin > timeout:
break
elif time.time()-begin > timeout*2:
break
try:
data = c_socket.recv(8192)
if data:
total_data.append(data)
#change the beginning time for measurement
begin=time.time()
else:
#sleep for sometime to indicate a gap
time.sleep(0.1)
break
except:
pass
return ''.join(total_data)
def create_self_signed_cert():
pkey = crypto.PKey()
pkey.generate_key(crypto.TYPE_RSA, 2048)
cert = crypto.X509()
cert.get_subject().O = "mailcow"
cert.get_subject().CN = "dockerapi"
cert.set_serial_number(int(uuid.uuid4()))
cert.gmtime_adj_notBefore(0)
cert.gmtime_adj_notAfter(10*365*24*60*60)
cert.set_issuer(cert.get_subject())
cert.set_pubkey(pkey)
cert.sign(pkey, 'sha512')
cert = crypto.dump_certificate(crypto.FILETYPE_PEM, cert)
pkey = crypto.dump_privatekey(crypto.FILETYPE_PEM, pkey)
with os.fdopen(os.open('/cert.pem', os.O_WRONLY | os.O_CREAT, 0o644), 'w') as handle:
handle.write(cert)
with os.fdopen(os.open('/key.pem', os.O_WRONLY | os.O_CREAT, 0o600), 'w') as handle:
handle.write(pkey)
api.add_resource(containers_get, '/containers/json')
api.add_resource(container_get, '/containers/<string:container_id>/json')
api.add_resource(container_post, '/containers/<string:container_id>/<string:post_action>')
if __name__ == '__main__':
api_thread = Thread(target=startFlaskAPI)
api_thread.daemon = True
api_thread.start()
killer = GracefulKiller()
while True:
time.sleep(1)
if killer.kill_now:
break
print "Stopping dockerapi-mailcow"