From 22b50ecb2f7f9e0469d281a4c401d4a531c1cc5b Mon Sep 17 00:00:00 2001 From: Philipp Hagemeister Date: Mon, 16 Sep 2013 03:32:45 +0200 Subject: [PATCH] Starts of a Windows service --- devscripts/buildserver.py | 143 ++++++++++++++++++++++++++++++++++---- 1 file changed, 128 insertions(+), 15 deletions(-) diff --git a/devscripts/buildserver.py b/devscripts/buildserver.py index 45c875b23..e0c3cc83e 100644 --- a/devscripts/buildserver.py +++ b/devscripts/buildserver.py @@ -4,8 +4,10 @@ from http.server import HTTPServer, BaseHTTPRequestHandler from socketserver import ThreadingMixIn import argparse import ctypes +import functools import sys import threading +import traceback import os.path @@ -21,10 +23,40 @@ SERVICE_WIN32_OWN_PROCESS = 0x10 SERVICE_AUTO_START = 0x2 SERVICE_ERROR_NORMAL = 0x1 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(): - res = advapi32.OpenSCManagerA(None, None, SC_MANAGER_ALL_ACCESS) + res = advapi32.OpenSCManagerW(None, None, SC_MANAGER_ALL_ACCESS) if not res: raise Exception('Opening service manager failed - ' 'are you running this as administrator?') @@ -34,7 +66,7 @@ def win_OpenSCManager(): def win_install_service(service_name, cmdline): manager = win_OpenSCManager() try: - h = advapi32.CreateServiceA( + h = advapi32.CreateServiceW( manager, service_name, None, SC_MANAGER_CREATE_SERVICE, SERVICE_WIN32_OWN_PROCESS, SERVICE_AUTO_START, SERVICE_ERROR_NORMAL, @@ -50,7 +82,7 @@ def win_install_service(service_name, cmdline): def win_uninstall_service(service_name): manager = win_OpenSCManager() try: - h = advapi32.OpenServiceA(manager, service_name, DELETE) + h = advapi32.OpenServiceW(manager, service_name, DELETE) if not h: raise OSError('Could not find service %s: %s' % ( service_name, ctypes.FormatError())) @@ -64,17 +96,90 @@ def win_uninstall_service(service_name): advapi32.CloseServiceHandle(manager) -def install_service(bind): - fn = os.path.normpath(__file__) - cmdline = '"%s" "%s" -s -b "%s"' % (sys.executable, fn, bind) - win_install_service('youtubedl_builder', cmdline) +def win_service_report_event(service_name, msg, is_error=True): + with open('C:/sshkeys/log', 'a', encoding='utf-8') as f: + f.write(msg + '\n') + + 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(): - win_uninstall_service('youtubedl_builder') +def win_service_handler(stop_event, *args): + 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.add_argument('-i', '--install', action='store_const', dest='action', const='install', @@ -83,18 +188,26 @@ def main(argv): action='store_const', dest='action', const='uninstall', help='Remove Windows 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') parser.add_argument('-b', '--bind', metavar='', action='store', default='localhost:8142', help='Bind to host:port (default %default)') - options = parser.parse_args() + options = parser.parse_args(args=args) 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': - return uninstall_service() + win_uninstall_service(SVCNAME) + return + + if options.action == 'service': + win_service_start(SVCNAME, main) + return host, port_str = options.bind.split(':') port = int(port_str) @@ -289,4 +402,4 @@ class BuildHTTPRequestHandler(BaseHTTPRequestHandler): #============================================================================== if __name__ == '__main__': - main(sys.argv[1:]) + main()