401 lines
17 KiB
Python
401 lines
17 KiB
Python
#!/usr/bin/env python3
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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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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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import subprocess
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import traceback
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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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try:
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"""Dispatch container_post api call"""
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if 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 not request.json or not 'task' in request.json:
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return jsonify(type='danger', msg='task is missing')
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api_call_method_name = '__'.join(['container_post', str(post_action), str(request.json['cmd']), str(request.json['task']) ])
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else:
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api_call_method_name = '__'.join(['container_post', str(post_action) ])
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api_call_method = getattr(self, api_call_method_name, lambda container_id: jsonify(type='danger', msg='container_post - unknown api call'))
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print("api call: %s, container_id: %s" % (api_call_method_name, container_id))
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return api_call_method(container_id)
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except Exception as e:
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print("error - container_post: %s" % str(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='invalid container id or missing action')
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# api call: container_post - post_action: stop
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def container_post__stop(self, container_id):
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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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# api call: container_post - post_action: start
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def container_post__start(self, container_id):
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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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# api call: container_post - post_action: restart
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def container_post__restart(self, container_id):
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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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# api call: container_post - post_action: top
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def container_post__top(self, container_id):
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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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# api call: container_post - post_action: stats
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def container_post__stats(self, container_id):
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for container in docker_client.containers.list(all=True, filters={"id": container_id}):
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for stat in container.stats(decode=True, stream=True):
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return jsonify(type='success', msg=stat )
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# api call: container_post - post_action: exec - cmd: mailq - task: delete
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def container_post__exec__mailq__delete(self, container_id):
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if 'items' in request.json:
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r = re.compile("^[0-9a-fA-F]+$")
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filtered_qids = filter(r.match, request.json['items'])
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if filtered_qids:
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flagged_qids = ['-d %s' % i for i in filtered_qids]
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sanitized_string = str(' '.join(flagged_qids));
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for container in docker_client.containers.list(filters={"id": container_id}):
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postsuper_r = container.exec_run(["/bin/bash", "-c", "/usr/sbin/postsuper " + sanitized_string])
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return exec_run_handler('generic', postsuper_r)
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# api call: container_post - post_action: exec - cmd: mailq - task: hold
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def container_post__exec__mailq__hold(self, container_id):
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if 'items' in request.json:
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r = re.compile("^[0-9a-fA-F]+$")
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filtered_qids = filter(r.match, request.json['items'])
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if filtered_qids:
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flagged_qids = ['-h %s' % i for i in filtered_qids]
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sanitized_string = str(' '.join(flagged_qids));
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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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# api call: container_post - post_action: exec - cmd: mailq - task: unhold
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def container_post__exec__mailq__unhold(self, container_id):
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if 'items' in request.json:
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r = re.compile("^[0-9a-fA-F]+$")
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filtered_qids = filter(r.match, request.json['items'])
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if filtered_qids:
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flagged_qids = ['-H %s' % i for i in filtered_qids]
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sanitized_string = str(' '.join(flagged_qids));
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for container in docker_client.containers.list(filters={"id": container_id}):
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postsuper_r = container.exec_run(["/bin/bash", "-c", "/usr/sbin/postsuper " + sanitized_string])
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return exec_run_handler('generic', postsuper_r)
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# api call: container_post - post_action: exec - cmd: mailq - task: deliver
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def container_post__exec__mailq__deliver(self, container_id):
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if 'items' in request.json:
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r = re.compile("^[0-9a-fA-F]+$")
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filtered_qids = filter(r.match, request.json['items'])
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if filtered_qids:
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flagged_qids = ['-i %s' % i for i in filtered_qids]
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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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# api call: container_post - post_action: exec - cmd: mailq - task: list
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def container_post__exec__mailq__list(self, container_id):
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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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# api call: container_post - post_action: exec - cmd: mailq - task: flush
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def container_post__exec__mailq__flush(self, container_id):
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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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# api call: container_post - post_action: exec - cmd: mailq - task: super_delete
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def container_post__exec__mailq__super_delete(self, container_id):
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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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# api call: container_post - post_action: exec - cmd: system - task: fts_rescan
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def container_post__exec__system__fts_rescan(self, container_id):
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if 'username' in request.json:
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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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if 'all' in request.json:
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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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# api call: container_post - post_action: exec - cmd: system - task: df
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def container_post__exec__system__df(self, container_id):
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if 'dir' in request.json:
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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.decode('utf-8').rstrip()
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else:
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return "0,0,0,0,0,0"
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# api call: container_post - post_action: exec - cmd: system - task: mysql_upgrade
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def container_post__exec__system__mysql_upgrade(self, container_id):
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for container in docker_client.containers.list(filters={"id": container_id}):
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cmd = "/usr/bin/mysql_upgrade -uroot -p'" + os.environ['DBROOT'].replace("'", "'\\''") + "'\n"
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cmd_response = exec_cmd_container(container, cmd, user='mysql')
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matched = False
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for line in cmd_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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# api call: container_post - post_action: exec - cmd: reload - task: dovecot
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def container_post__exec__reload__dovecot(self, container_id):
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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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# api call: container_post - post_action: exec - cmd: reload - task: postfix
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def container_post__exec__reload__postfix(self, container_id):
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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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# api call: container_post - post_action: exec - cmd: reload - task: nginx
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def container_post__exec__reload__nginx(self, container_id):
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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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# api call: container_post - post_action: exec - cmd: sieve - task: list
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def container_post__exec__sieve__list(self, container_id):
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if 'username' in request.json:
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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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# api call: container_post - post_action: exec - cmd: sieve - task: print
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def container_post__exec__sieve__print(self, container_id):
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if 'username' in request.json and 'script_name' in request.json:
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for container in docker_client.containers.list(filters={"id": container_id}):
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cmd = ["/bin/bash", "-c", "/usr/local/bin/doveadm sieve get -u '" + request.json['username'].replace("'", "'\\''") + "' '" + request.json['script_name'].replace("'", "'\\''") + "'"]
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sieve_return = container.exec_run(cmd)
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return exec_run_handler('utf8_text_only', sieve_return)
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# api call: container_post - post_action: exec - cmd: maildir - task: cleanup
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def container_post__exec__maildir__cleanup(self, container_id):
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if 'maildir' in request.json:
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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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cmd = ["/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"]
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maildir_cleanup = container.exec_run(cmd, user='vmail')
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return exec_run_handler('generic', maildir_cleanup)
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# api call: container_post - post_action: exec - cmd: rspamd - task: worker_password
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def container_post__exec__rspamd__worker_password(self, container_id):
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if 'raw' in request.json:
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for container in docker_client.containers.list(filters={"id": container_id}):
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cmd = "/usr/bin/rspamadm pw -e -p '" + request.json['raw'].replace("'", "'\\''") + "' 2> /dev/null"
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cmd_response = exec_cmd_container(container, cmd, user="_rspamd")
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matched = False
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for line in cmd_response.split("\n"):
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if '$2$' in line:
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hash = line.strip()
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hash_out = re.search('\$2\$.+$', hash).group(0)
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rspamd_passphrase_hash = re.sub('[^0-9a-zA-Z\$]+', '', hash_out.rstrip())
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rspamd_password_filename = "/etc/rspamd/override.d/worker-controller-password.inc"
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cmd = '''/bin/echo 'enable_password = "%s";' > %s && cat %s''' % (rspamd_passphrase_hash, rspamd_password_filename, rspamd_password_filename)
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cmd_response = exec_cmd_container(container, cmd, user="_rspamd")
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if rspamd_passphrase_hash.startswith("$2$") and rspamd_passphrase_hash in cmd_response:
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container.restart()
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matched = True
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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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def exec_cmd_container(container, cmd, user, timeout=2, shell_cmd="/bin/bash"):
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def recv_socket_data(c_socket, timeout):
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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.decode('utf-8'))
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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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try :
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socket = container.exec_run([shell_cmd], stdin=True, socket=True, user=user).output._sock
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if not cmd.endswith("\n"):
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cmd = cmd + "\n"
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socket.send(cmd.encode('utf-8'))
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data = recv_socket_data(socket, timeout)
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socket.close()
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return data
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except Exception as e:
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print("error - exec_cmd_container: %s" % str(e))
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traceback.print_exc(file=sys.stdout)
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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')
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else:
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return jsonify(type='danger', msg='command failed: ' + output.output.decode('utf-8'))
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if type == 'utf8_text_only':
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r = Response(response=output.output.decode('utf-8'), 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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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 create_self_signed_cert():
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process = subprocess.Popen(
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"openssl req -x509 -newkey rsa:4096 -sha256 -days 3650 -nodes -keyout /app/dockerapi_key.pem -out /app/dockerapi_cert.pem -subj /CN=dockerapi/O=mailcow -addext subjectAltName=DNS:dockerapi".split(),
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stdout = subprocess.PIPE, stderr = subprocess.PIPE, shell=False
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)
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process.wait()
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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='/app/dockerapi_cert.pem', keyfile='/app/dockerapi_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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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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