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calculate-utils-3-core/data/cl-dbus-core.py

112 lines
3.6 KiB

#!/usr/bin/env python
# Copyright 2017 Mir Calculate. http://www.calculate-linux.org
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from gi.repository import GLib
import dbus
import dbus.service
import dbus.mainloop.glib
import os
import time
import socket
DBUS_INTERFACE="org.calculate.CoreInterface"
DBUS_NAME="org.calculate.Core"
DBUS_OBJECT="/Core"
def check_port(target, port, timeout=5):
"""
Проверить порт (port) на хосте (target)
:param target: хост
:param port: порт
:param timeout: таймаут
:return: True - порт открыт, False - нет хоста, порт закрыт, firewall
"""
try:
targetIP = socket.gethostbyname(target)
except socket.gaierror:
return False
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.settimeout(timeout)
try:
s.connect((targetIP, port))
s.close()
except (socket.error, socket.timeout):
return False
return True
class CoreObject(dbus.service.Object):
@dbus.service.method(DBUS_INTERFACE,
in_signature='i', out_signature='b')
def Start(self, port):
try:
if not self.check_core(port):
os.system("source /etc/profile;/sbin/start-stop-daemon --background --start "
"--pidfile /var/run/cl_core.pid "
"--exec /usr/sbin/cl-core -- "
"--pid-file /var/run/cl_core.pid --close-on-inactive --start")
for x in range(0, 24):
if self.check_core(port):
return True
time.sleep(0.5)
else:
return False
return True
finally:
self.mainloop.quit()
@dbus.service.method(DBUS_INTERFACE,
in_signature='i', out_signature='b')
def Ping(self, port):
try:
return self.check_core(port)
finally:
self.mainloop.quit()
def check_core(self, port):
return check_port("127.0.0.1", port)
@dbus.service.method(DBUS_INTERFACE, in_signature='', out_signature='s')
def ServerHostname(self):
try:
import OpenSSL
cert_file = "/var/calculate/server/ca/server.crt"
if os.path.exists(cert_file):
with open(cert_file) as f:
cert = f.read()
cert_obj = OpenSSL.crypto.load_certificate(
OpenSSL.SSL.FILETYPE_PEM, cert)
subject = cert_obj.get_subject().get_components()
for subj in subject:
if subj[0] == b'CN':
return str(subj[1], 'utf-8')
except Exception:
pass
return "localhost"
if __name__ == '__main__':
dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
system_bus = dbus.SystemBus()
name = dbus.service.BusName(DBUS_NAME, system_bus)
obj = CoreObject(system_bus, DBUS_OBJECT)
obj.mainloop = GLib.MainLoop()
obj.mainloop.run()