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