Starts of a Windows service

This commit is contained in:
Philipp Hagemeister 2013-09-16 03:32:45 +02:00
parent 71cedb3c0c
commit 22b50ecb2f

View File

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