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#!/usr/bin/env python
import win32serviceutil
import win32service
import servicemanager
import os
from jToolkit.demo import helloworldservice
from jToolkit.web import ntservice
import urllib2
try:
import cookielib
except ImportError:
# fallback for python before 2.4
cookielib = None
import ClientCookie
import time
class ServiceManager:
_svc_name_ = "HelloWorldWebServer"
_svc_evt_src_ = _svc_name_
def __init__(self):
self.hscm = win32service.OpenSCManager(None, None, win32service.SC_MANAGER_ALL_ACCESS)
self._hs = None
def __del__(self):
if self._hs is not None:
win32service.CloseServiceHandle(self._hs)
win32service.CloseServiceHandle(self.hscm)
def readhs(self):
return win32service.OpenService(self.hscm, self._svc_name_, win32service.SERVICE_ALL_ACCESS)
def geths(self):
if self._hs is None:
try:
self._hs = self.readhs()
except:
pass
return self._hs
return self._hs
hs = property(geths)
def closeservice(self):
if self._hs is not None:
win32service.CloseServiceHandle(self._hs)
self._hs = None
def getstatus(self):
hs = self.hs
if hs is not None:
return win32service.QueryServiceStatus(hs)[1]
return None
status = property(getstatus)
def installservice(self, extraargs=[]):
class dummyoptions:
startup = "manual"
user = None
password = None
script = os.path.abspath(helloworldservice.__file__)
prefsfile = os.path.join(os.path.dirname(script), "helloworld.prefs")
serviceargs = ["--prefsfile", prefsfile] + extraargs
ntservice.InstallService(helloworldservice.HelloWorldService, dummyoptions, script, serviceargs)
def killprocess(self, pid):
"""Tries to kill the given process, using pskill if available, or asks user to"""
# TODO: add more info for user. pskill is from sysinternals.com
result = os.system("pskill %d" % pid)
if result == 0:
# give the operating system time to recover
time.sleep(1)
else:
print "Please try and kill process %d" % pid
raw_input("Press Enter when done... ")
def removeservice(self, pid=None):
"""Removes the service. The given process ID will be killed if stopping the service fails"""
stoperror = None
try:
self.stopservice()
except Exception, e:
print "Error stopping service, will try delete anyway:", e
if pid is not None:
self.killprocess(pid)
# if the kill process is successful, stopservice will succeed...
self.stopservice()
else:
stoperror = e
try:
win32service.DeleteService(self.hs)
except Exception, e:
if e.args[2] != 'The specified service has been marked for deletion.':
raise
if stoperror:
raise
self.closeservice()
def startservice(self):
win32service.StartService(self.hs, [])
win32serviceutil.WaitForServiceStatus(self._svc_name_, win32service.SERVICE_RUNNING, 15)
def stopservice(self):
hs = self.hs
if hs is not None:
if self.status != win32service.SERVICE_STOPPED:
win32service.ControlService(hs, win32service.SERVICE_CONTROL_STOP)
win32serviceutil.WaitForServiceStatus(self._svc_name_, win32service.SERVICE_STOPPED, 15)
class TestService(object):
hostname = "localhost"
port = 8080
def setup_class(cls):
cls.servicemanager = ServiceManager()
def setup_method(self, method):
try:
hs = self.servicemanager.hs
if hs is not None:
self.servicemanager.removeservice()
except Exception, e:
from jToolkit import errors
print errors.ErrorHandler(None).traceback_str()
n = 0
while "marked for deletion" in str(e) and n < 8:
n += 1
e = None
try:
self.servicemanager.removeservice()
except Exception, e:
pass
else:
time.sleep(0.25)
if e is not None:
print "attempt to wait for service deletion unsuccessful, trying to stop with net command"
os.system("net stop %s" % self.servicemanager._svc_name_)
if self.servicemanager.hs is not None:
print "attempt to wait for service deletion unsuccessful"
raise
else:
print "error removing service (not neccessarily serious): %s" % e
self.setup_cookies()
# can specify extra arguments per object or method
dirname = os.path.abspath(os.getcwd())
self.pidfile = os.path.join(dirname, "%s_%s.pid" % (self.__class__.__name__, method.__name__))
if os.path.exists(self.pidfile):
os.remove(self.pidfile)
extraargs = ["--pidfile", self.pidfile]
extraargs += getattr(self, "extraargs", [])
extraargs += getattr(method, "extraargs", [])
self.servicemanager.installservice(extraargs=extraargs)
try:
self.servicemanager.startservice()
except Exception, e:
print "Error starting service, so will remove: %s" % e
self.servicemanager.removeservice()
raise
self.method_start = time.clock()
print "starting method", method.__name__
def setup_cookies(self):
"""handle cookies etc"""
if cookielib:
self.cookiejar = cookielib.CookieJar()
self.opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(self.cookiejar))
self.urlopen = self.opener.open
else:
self.urlopen = ClientCookie.urlopen
def teardown_method(self, method):
try:
pid = int(open(self.pidfile, "r").read())
except Exception, e:
print "Could not read pid from file"
pid = None
method_time = time.clock() - self.method_start
if method_time < 0.2:
print "%s took only %0.2f seconds, sleeping to recover" % (method.__name__, method_time)
time.sleep(0.3 - method_time)
self.servicemanager.removeservice(pid)
# this sleep seems to help let them get deleted
time.sleep(0.25)
if os.path.exists(self.pidfile):
os.remove(self.pidfile)
def fetch_page(self, relative_url):
"""Fetches a page from the webserver installed in the service"""
url = "http://%s:%d/%s" % (self.hostname, self.port, relative_url)
print "fetching", url
stream = self.urlopen(url)
contents = stream.read()
return contents
class TestHelloWorldService(TestService):
def test_hello_world(self):
"""Tests that the page returns Hello World"""
contents = self.fetch_page("")
assert contents.strip() == "Hello World"
test_hello_world.extraargs = ["--servertype", "standard"]
def test_hello_world_threaded(self):
"""Tests that services work in threaded mode"""
self.test_hello_world()
test_hello_world_threaded.extraargs = ["--servertype", "threaded"]
if __name__ == "__main__":
ntservice.HandleCommandLine(helloworldservice.HelloWorldService)
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