Starts of a Windows service
This commit is contained in:
Philipp Hagemeister
parent
71cedb3c0c
commit
22b50ecb2f
@ -4,8 +4,10 @@ from http.server import HTTPServer, BaseHTTPRequestHandler
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from socketserver import ThreadingMixIn
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import argparse
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import ctypes
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import functools
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import sys
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import threading
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import traceback
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import os.path
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@ -21,10 +23,40 @@ SERVICE_WIN32_OWN_PROCESS = 0x10
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SERVICE_AUTO_START = 0x2
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SERVICE_ERROR_NORMAL = 0x1
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DELETE = 0x00010000
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SERVICE_STATUS_START_PENDING = 0x00000002
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SERVICE_STATUS_RUNNING = 0x00000004
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SERVICE_ACCEPT_STOP = 0x1
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SVCNAME = 'youtubedl_builder'
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LPTSTR = ctypes.c_wchar_p
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START_CALLBACK = ctypes.WINFUNCTYPE(None, ctypes.c_int, ctypes.POINTER(LPTSTR))
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class SERVICE_TABLE_ENTRY(ctypes.Structure):
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_fields_ = [
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('lpServiceName', LPTSTR),
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('lpServiceProc', START_CALLBACK)
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]
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HandlerEx = ctypes.WINFUNCTYPE(
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ctypes.c_int, # return
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ctypes.c_int, # dwControl
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ctypes.c_int, # dwEventType
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ctypes.c_void_p, # lpEventData,
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ctypes.c_void_p, # lpContext,
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)
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def _ctypes_array(c_type, py_array):
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ar = (c_type * len(py_array))()
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ar[:] = py_array
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return ar
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def win_OpenSCManager():
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res = advapi32.OpenSCManagerA(None, None, SC_MANAGER_ALL_ACCESS)
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res = advapi32.OpenSCManagerW(None, None, SC_MANAGER_ALL_ACCESS)
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if not res:
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raise Exception('Opening service manager failed - '
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'are you running this as administrator?')
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@ -34,7 +66,7 @@ def win_OpenSCManager():
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def win_install_service(service_name, cmdline):
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manager = win_OpenSCManager()
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try:
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h = advapi32.CreateServiceA(
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h = advapi32.CreateServiceW(
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manager, service_name, None,
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SC_MANAGER_CREATE_SERVICE, SERVICE_WIN32_OWN_PROCESS,
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SERVICE_AUTO_START, SERVICE_ERROR_NORMAL,
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@ -50,7 +82,7 @@ def win_install_service(service_name, cmdline):
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def win_uninstall_service(service_name):
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manager = win_OpenSCManager()
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try:
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h = advapi32.OpenServiceA(manager, service_name, DELETE)
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h = advapi32.OpenServiceW(manager, service_name, DELETE)
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if not h:
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raise OSError('Could not find service %s: %s' % (
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service_name, ctypes.FormatError()))
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@ -64,17 +96,90 @@ def win_uninstall_service(service_name):
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advapi32.CloseServiceHandle(manager)
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def install_service(bind):
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fn = os.path.normpath(__file__)
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cmdline = '"%s" "%s" -s -b "%s"' % (sys.executable, fn, bind)
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win_install_service('youtubedl_builder', cmdline)
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def win_service_report_event(service_name, msg, is_error=True):
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with open('C:/sshkeys/log', 'a', encoding='utf-8') as f:
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f.write(msg + '\n')
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event_log = advapi32.RegisterEventSourceW(None, service_name)
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if not event_log:
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raise OSError('Could not report event: %s' % ctypes.FormatError())
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try:
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type_id = 0x0001 if is_error else 0x0004
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event_id = 0xc0000000 if is_error else 0x40000000
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lines = _ctypes_array(LPTSTR, [msg])
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if not advapi32.ReportEventW(
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event_log, type_id, 0, event_id, None, len(lines), 0,
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lines, None):
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raise OSError('Event reporting failed: %s' % ctypes.FormatError())
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finally:
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advapi32.DeregisterEventSource(event_log)
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def uninstall_service():
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win_uninstall_service('youtubedl_builder')
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def win_service_handler(stop_event, *args):
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try:
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raise ValueError('Handler called with args ' + repr(args))
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TODO
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except Exception as e:
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tb = traceback.format_exc()
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msg = str(e) + '\n' + tb
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win_service_report_event(service_name, msg, is_error=True)
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raise
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def main(argv):
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def win_service_set_status(handle, status_code):
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svcStatus = SERVICE_STATUS()
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svcStatus.dwServiceType = SERVICE_WIN32_OWN_PROCESS
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svcStatus.dwCurrentState = status_code
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svcStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP
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svcStatus.dwServiceSpecificExitCode = 0
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if not advapi32.SetServiceStatus(handle, ctypes.byref(svcStatus)):
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raise OSError('SetServiceStatus failed: %r' % ctypes.FormatError())
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def win_service_main(service_name, real_main, argc, argv_raw):
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try:
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#args = [argv_raw[i].value for i in range(argc)]
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stop_event = threading.Event()
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handler = HandlerEx(functools.partial(stop_event, win_service_handler))
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h = advapi32.RegisterServiceCtrlHandlerExW(service_name, handler, None)
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if not h:
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raise OSError('Handler registration failed: %s' %
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ctypes.FormatError())
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TODO
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except Exception as e:
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tb = traceback.format_exc()
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msg = str(e) + '\n' + tb
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win_service_report_event(service_name, msg, is_error=True)
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raise
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def win_service_start(service_name, real_main):
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try:
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cb = START_CALLBACK(
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functools.partial(win_service_main, service_name, real_main))
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dispatch_table = _ctypes_array(SERVICE_TABLE_ENTRY, [
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SERVICE_TABLE_ENTRY(
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service_name,
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cb
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),
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SERVICE_TABLE_ENTRY(None, ctypes.cast(None, START_CALLBACK))
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])
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if not advapi32.StartServiceCtrlDispatcherW(dispatch_table):
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raise OSError('ctypes start failed: %s' % ctypes.FormatError())
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except Exception as e:
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tb = traceback.format_exc()
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msg = str(e) + '\n' + tb
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win_service_report_event(service_name, msg, is_error=True)
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raise
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def main(args=None):
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parser = argparse.ArgumentParser()
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parser.add_argument('-i', '--install',
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action='store_const', dest='action', const='install',
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@ -83,18 +188,26 @@ def main(argv):
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action='store_const', dest='action', const='uninstall',
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help='Remove Windows service')
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parser.add_argument('-s', '--service',
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action='store_const', dest='action', const='servce',
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action='store_const', dest='action', const='service',
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help='Run as a Windows service')
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parser.add_argument('-b', '--bind', metavar='<host:port>',
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action='store', default='localhost:8142',
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help='Bind to host:port (default %default)')
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options = parser.parse_args()
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options = parser.parse_args(args=args)
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if options.action == 'install':
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return install_service(options.bind)
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fn = os.path.abspath(__file__).replace('v:', '\\\\vboxsrv\\vbox')
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cmdline = '%s %s -s -b %s' % (sys.executable, fn, options.bind)
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win_install_service(SVCNAME, cmdline)
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return
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if options.action == 'uninstall':
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return uninstall_service()
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win_uninstall_service(SVCNAME)
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return
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if options.action == 'service':
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win_service_start(SVCNAME, main)
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return
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host, port_str = options.bind.split(':')
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port = int(port_str)
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@ -289,4 +402,4 @@ class BuildHTTPRequestHandler(BaseHTTPRequestHandler):
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#==============================================================================
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if __name__ == '__main__':
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main(sys.argv[1:])
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main()
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