402 lines
		
	
	
		
			18 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			402 lines
		
	
	
		
			18 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 Response
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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 == 'top':
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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 jsonify(type='success', msg=container.top())
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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 == 'stats':
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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 jsonify(type='success', msg=container.stats(decode=True, stream=False))
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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'] == 'mailq':
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          if 'items' in request.json:
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            r = re.compile("^[0-9a-fA-F]+$")
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            filtered_qids = filter(r.match, request.json['items'])
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            if filtered_qids:
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              if request.json['task'] == 'delete':
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                flagged_qids = ['-d %s' % i for i in filtered_qids]
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                sanitized_string = str(' '.join(flagged_qids));
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                try:
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                  for container in docker_client.containers.list(filters={"id": container_id}):
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                    postsuper_r = container.exec_run(["/bin/bash", "-c", "/usr/sbin/postsuper " + sanitized_string])
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                    return exec_run_handler('generic', postsuper_r)
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                except Exception as e:
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                  return jsonify(type='danger', msg=str(e))
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              if request.json['task'] == 'hold':
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                flagged_qids = ['-h %s' % i for i in filtered_qids]
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                sanitized_string = str(' '.join(flagged_qids));
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                try:
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                  for container in docker_client.containers.list(filters={"id": container_id}):
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                    postsuper_r = container.exec_run(["/bin/bash", "-c", "/usr/sbin/postsuper " + sanitized_string])
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                    return exec_run_handler('generic', postsuper_r)
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                except Exception as e:
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                  return jsonify(type='danger', msg=str(e))
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              if request.json['task'] == 'unhold':
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                flagged_qids = ['-H %s' % i for i in filtered_qids]
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                sanitized_string = str(' '.join(flagged_qids));
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                try:
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                  for container in docker_client.containers.list(filters={"id": container_id}):
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                    postsuper_r = container.exec_run(["/bin/bash", "-c", "/usr/sbin/postsuper " + sanitized_string])
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                    return exec_run_handler('generic', postsuper_r)
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                except Exception as e:
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                  return jsonify(type='danger', msg=str(e))
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              if request.json['task'] == 'deliver':
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                flagged_qids = ['-i %s' % i for i in filtered_qids]
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                try:
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                  for container in docker_client.containers.list(filters={"id": container_id}):
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                    for i in flagged_qids:
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                      postqueue_r = container.exec_run(["/bin/bash", "-c", "/usr/sbin/postqueue " + i], user='postfix')
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                      # todo: check each exit code
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                    return jsonify(type='success', msg=str("Scheduled immediate delivery"))
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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['task'] == 'list':
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            try:
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              for container in docker_client.containers.list(filters={"id": container_id}):
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                mailq_return = container.exec_run(["/usr/sbin/postqueue", "-j"], user='postfix')
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                return exec_run_handler('utf8_text_only', mailq_return)
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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['task'] == 'flush':
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            try:
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              for container in docker_client.containers.list(filters={"id": container_id}):
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                postqueue_r = container.exec_run(["/usr/sbin/postqueue", "-f"], user='postfix')
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                return exec_run_handler('generic', postqueue_r)
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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['task'] == 'super_delete':
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            try:
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              for container in docker_client.containers.list(filters={"id": container_id}):
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                postsuper_r = container.exec_run(["/usr/sbin/postsuper", "-d", "ALL"])
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                return exec_run_handler('generic', postsuper_r)
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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'] == 'system':
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          if request.json['task'] == 'fts_rescan':
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            if 'username' in request.json:
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              try:
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                for container in docker_client.containers.list(filters={"id": container_id}):
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                  rescan_return = container.exec_run(["/bin/bash", "-c", "/usr/local/bin/doveadm fts rescan -u '" + request.json['username'].replace("'", "'\\''") + "'"], user='vmail')
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                  if rescan_return.exit_code == 0:
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                    return jsonify(type='success', msg='fts_rescan: rescan triggered')
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                  else:
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                    return jsonify(type='warning', msg='fts_rescan error')
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              except Exception as e:
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                return jsonify(type='danger', msg=str(e))
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            if 'all' in request.json:
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              try:
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                for container in docker_client.containers.list(filters={"id": container_id}):
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                  rescan_return = container.exec_run(["/bin/bash", "-c", "/usr/local/bin/doveadm fts rescan -A"], user='vmail')
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                  if rescan_return.exit_code == 0:
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                    return jsonify(type='success', msg='fts_rescan: rescan triggered')
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                  else:
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                    return jsonify(type='warning', msg='fts_rescan error')
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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['task'] == 'df':
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            if 'dir' in request.json:
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              try:
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                for container in docker_client.containers.list(filters={"id": container_id}):
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                  df_return = container.exec_run(["/bin/bash", "-c", "/bin/df -H '" + request.json['dir'].replace("'", "'\\''") + "' | /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['task'] == 'mysql_upgrade':
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            try:
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              for container in docker_client.containers.list(filters={"id": container_id}):
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                sql_shell = container.exec_run(["/bin/bash"], stdin=True, socket=True, user='mysql')
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                upgrade_cmd = "/usr/bin/mysql_upgrade -uroot -p'" + os.environ['DBROOT'].replace("'", "'\\''") + "'\n"
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                sql_socket = sql_shell.output;
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                try :
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                  sql_socket.sendall(upgrade_cmd.encode('utf-8'))
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                  sql_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(sql_socket)
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                matched = False
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                for line in worker_response.split("\n"):
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                  if 'is already upgraded to' in line:
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                    matched = True
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                if matched:
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                  return jsonify(type='success', msg='mysql_upgrade: already upgraded')
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                else:
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                  container.restart()
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                  return jsonify(type='warning', msg='mysql_upgrade: upgrade was applied')
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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'] == 'reload':
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          if request.json['task'] == 'dovecot':
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            try:
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              for container in docker_client.containers.list(filters={"id": container_id}):
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                reload_return = container.exec_run(["/bin/bash", "-c", "/usr/local/sbin/dovecot reload"])
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                return exec_run_handler('generic', reload_return)
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            except Exception as e:
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              return jsonify(type='danger', msg=str(e))
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          if request.json['task'] == 'postfix':
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            try:
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              for container in docker_client.containers.list(filters={"id": container_id}):
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                reload_return = container.exec_run(["/bin/bash", "-c", "/usr/sbin/postfix reload"])
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                return exec_run_handler('generic', reload_return)
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            except Exception as e:
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              return jsonify(type='danger', msg=str(e))
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          if request.json['task'] == 'nginx':
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            try:
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              for container in docker_client.containers.list(filters={"id": container_id}):
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                reload_return = container.exec_run(["/bin/sh", "-c", "/usr/sbin/nginx -s reload"])
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                return exec_run_handler('generic', reload_return)
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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':
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          if request.json['task'] == 'list':
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            if 'username' in request.json:
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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("'", "'\\''") + "'"])
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                  return exec_run_handler('utf8_text_only', sieve_return)
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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['task'] == 'print':
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            if 'username' in request.json and 'script_name' in request.json:
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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("'", "'\\''") + "'"])
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                  return exec_run_handler('utf8_text_only', sieve_return)
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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':
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          if request.json['task'] == 'cleanup':
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            if 'maildir' in request.json:
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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", "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')
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                  return exec_run_handler('generic', maildir_cleanup)
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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'] == 'rspamd':
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          if request.json['task'] == 'worker_password':
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            if 'raw' in request.json:
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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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        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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 | 
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def exec_run_handler(type, output):
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  if type == 'generic':
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						|
    if output.exit_code == 0:
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      return jsonify(type='success', msg='command completed successfully')
 | 
						|
    else:
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      return jsonify(type='danger', msg='command failed: ' + output.output)
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  if type == 'utf8_text_only':
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    r = Response(response=output.output, status=200, mimetype="text/plain")
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    r.headers["Content-Type"] = "text/plain; charset=utf-8"
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    return r
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def create_self_signed_cert():
 | 
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  success = False
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						|
  while not success:
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						|
    try:
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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"
 | 
						|
      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)
 | 
						|
      success = True
 | 
						|
    except:
 | 
						|
      time.sleep(1)
 | 
						|
      try:
 | 
						|
        os.remove('/cert.pem')
 | 
						|
        os.remove('/key.pem')
 | 
						|
      except OSError:
 | 
						|
        pass
 | 
						|
 | 
						|
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"
 | 
						|
 |