Exemple #1
0
def start(cron=True):
    """ Start server  """

    # ## get command line arguments

    (options, args) = console()

    if not options.nobanner:
        print ProgramName
        print ProgramAuthor
        print ProgramVersion

    from dal import DRIVERS
    if not options.nobanner:
        print 'Database drivers available: %s' % ', '.join(DRIVERS)

    # ## if -L load options from options.config file
    if options.config:
        try:
            options2 = __import__(options.config, {}, {}, '')
        except Exception:
            try:
                # Jython doesn't like the extra stuff
                options2 = __import__(options.config)
            except Exception:
                print 'Cannot import config file [%s]' % options.config
                sys.exit(1)
        for key in dir(options2):
            if hasattr(options, key):
                setattr(options, key, getattr(options2, key))

    logfile0 = os.path.join('extras','examples','logging.example.conf')
    if not os.path.exists('logging.conf') and os.path.exists(logfile0):
        import shutil
        sys.stdout.write("Copying logging.conf.example to logging.conf ... ")
        shutil.copyfile('logging.example.conf', logfile0)
        sys.stdout.write("OK\n")

    # ## if -T run doctests (no cron)
    if hasattr(options, 'test') and options.test:
        test(options.test, verbose=options.verbose)
        return

    # ## if -S start interactive shell (also no cron)
    if options.shell:
        if not options.args is None:
            sys.argv[:] = options.args
        run(options.shell, plain=options.plain, bpython=options.bpython,
            import_models=options.import_models, startfile=options.run,
            cronjob=options.cronjob)
        return

    # ## if -C start cron run (extcron) and exit
    # ##    -K specifies optional apps list (overloading scheduler)
    if options.extcron:
        logger.debug('Starting extcron...')
        global_settings.web2py_crontype = 'external'
        if options.scheduler:   # -K
            apps = [app.strip() for app in options.scheduler.split(
                ',') if check_existent_app(options, app.strip())]
        else:
            apps = None
        extcron = newcron.extcron(options.folder, apps=apps)
        extcron.start()
        extcron.join()
        return

    # ## if -K
    if options.scheduler and not options.with_scheduler:
        try:
            start_schedulers(options)
        except KeyboardInterrupt:
            pass
        return

    # ## if -W install/start/stop web2py as service
    if options.winservice:
        if os.name == 'nt':
            try:
                from winservice import register_service_handler, Web2pyService
                register_service_handler(
                    argv=['', options.winservice],
                    opt_file=options.config,
                    cls=Web2pyService)
            except ImportError:
                print 'Error: Missing python module winservice'
                sys.exit(1)
        else:
            print 'Error: Windows services not supported on this platform'
            sys.exit(1)
        return

    # ## if -H cron is enabled in this *process*
    # ## if --softcron use softcron
    # ## use hardcron in all other cases
    if cron and options.runcron and options.softcron:
        print 'Using softcron (but this is not very efficient)'
        global_settings.web2py_crontype = 'soft'
    elif cron and options.runcron:
        logger.debug('Starting hardcron...')
        global_settings.web2py_crontype = 'hard'
        newcron.hardcron(options.folder).start()

    # ## if no password provided and havetk start Tk interface
    # ## or start interface if we want to put in taskbar (system tray)

    try:
        options.taskbar
    except:
        options.taskbar = False

    if options.taskbar and os.name != 'nt':
        print 'Error: taskbar not supported on this platform'
        sys.exit(1)

    root = None

    if not options.nogui:
        try:
            import Tkinter
            havetk = True
        except ImportError:
            logger.warn(
                'GUI not available because Tk library is not installed')
            havetk = False
            options.nogui = True

        if options.password == '<ask>' and havetk or options.taskbar and havetk:
            try:
                root = Tkinter.Tk()
            except:
                pass

    if root:
        root.focus_force()

        # Mac OS X - make the GUI window rise to the top
        if os.path.exists("/usr/bin/osascript"):
            applescript = """
tell application "System Events"
    set proc to first process whose unix id is %d
    set frontmost of proc to true
end tell
""" % (os.getpid())
            os.system("/usr/bin/osascript -e '%s'" % applescript)

        if not options.quiet:
            presentation(root)
        master = web2pyDialog(root, options)
        signal.signal(signal.SIGTERM, lambda a, b: master.quit())

        try:
            root.mainloop()
        except:
            master.quit()

        sys.exit()

    # ## if no tk and no password, ask for a password

    if not root and options.password == '<ask>':
        options.password = getpass.getpass('choose a password:'******'no password, no admin interface'

    # ##-X (if no tk, the widget takes care of it himself)
    if not root and options.scheduler and options.with_scheduler:
        t = threading.Thread(target=start_schedulers, args=(options,))
        t.start()

    # ## start server

    # Use first interface IP and port if interfaces specified, since the
    # interfaces option overrides the IP (and related) options.
    if not options.interfaces:
        (ip, port) = (options.ip, int(options.port))
    else:
        first_if = options.interfaces[0]
        (ip, port) = first_if[0], first_if[1]

    # Check for non default value for ssl inputs
    if (len(options.ssl_certificate) > 0) or (len(options.ssl_private_key) > 0):
        proto = 'https'
    else:
        proto = 'http'

    url = get_url(ip, proto=proto, port=port)

    if not options.nobanner:
        print 'please visit:'
        print '\t', url
        print 'use "kill -SIGTERM %i" to shutdown the web2py server' % os.getpid()

    # enhance linecache.getline (used by debugger) to look at the source file
    # if the line was not found (under py2exe & when file was modified)
    import linecache
    py2exe_getline = linecache.getline
    def getline(filename, lineno, *args, **kwargs):
        line = py2exe_getline(filename, lineno, *args, **kwargs)
        if not line:                
            f = open(filename, "r")
            try:
                for i, line in enumerate(f):
                    if lineno == i + 1:
                        break
                else:
                    line = None
            finally:
                f.close()
        return line
    linecache.getline = getline

    server = main.HttpServer(ip=ip,
                             port=port,
                             password=options.password,
                             pid_filename=options.pid_filename,
                             log_filename=options.log_filename,
                             profiler_dir=options.profiler_dir,
                             ssl_certificate=options.ssl_certificate,
                             ssl_private_key=options.ssl_private_key,
                             ssl_ca_certificate=options.ssl_ca_certificate,
                             min_threads=options.minthreads,
                             max_threads=options.maxthreads,
                             server_name=options.server_name,
                             request_queue_size=options.request_queue_size,
                             timeout=options.timeout,
                             socket_timeout=options.socket_timeout,
                             shutdown_timeout=options.shutdown_timeout,
                             path=options.folder,
                             interfaces=options.interfaces)

    try:
        server.start()
    except KeyboardInterrupt:
        server.stop()
        try:
            t.join()
        except:
            pass
    logging.shutdown()
Exemple #2
0
def start():
    """ Starts server and other services """

    # get command line arguments
    options = console(version=ProgramVersion)

    if options.gae:
        # write app.yaml, gaehandler.py, and exit
        if not os.path.exists('app.yaml'):
            name = options.gae
            # for backward compatibility
            if name == 'configure':
                if PY2: input = raw_input
                name = input("Your GAE app name: ")
            content = open(os.path.join('examples', 'app.example.yaml'), 'rb').read()
            open('app.yaml', 'wb').write(content.replace("yourappname", name))
        else:
            print("app.yaml alreday exists in the web2py folder")
        if not os.path.exists('gaehandler.py'):
            content = open(os.path.join('handlers', 'gaehandler.py'), 'rb').read()
            open('gaehandler.py', 'wb').write(content)
        else:
            print("gaehandler.py alreday exists in the web2py folder")
        return

    logger = logging.getLogger("web2py")
    logger.setLevel(options.log_level)

    # on new installation build the scaffolding app
    create_welcome_w2p()

    if options.run_system_tests:
        # run system test and exit
        run_system_tests(options)

    if options.quiet:
        # to prevent writes on stdout set a null stream
        class NullFile(object):
            def write(self, x):
                pass
        sys.stdout = NullFile()
        # but still has to mute existing loggers, to do that iterate
        # over all existing loggers (root logger included) and remove
        # all attached logging.StreamHandler instances currently
        # streaming on sys.stdout or sys.stderr
        loggers = [logging.getLogger()]
        loggers.extend(logging.Logger.manager.loggerDict.values())
        for l in loggers:
            if isinstance(l, logging.PlaceHolder): continue
            for h in l.handlers[:]:
                if isinstance(h, logging.StreamHandler) and \
                    h.stream in (sys.stdout, sys.stderr):
                    l.removeHandler(h)
        # NOTE: stderr.write() is still working

    if not options.no_banner:
        # banner
        print(ProgramName)
        print(ProgramAuthor)
        print(ProgramVersion)
        from pydal.drivers import DRIVERS
        print('Database drivers available: %s' % ', '.join(DRIVERS))

    if options.run_doctests:
        # run doctests and exit
        test(options.run_doctests, verbose=options.verbose)
        return

    if options.shell:
        # run interactive shell and exit
        sys.argv = [options.run or ''] + options.args
        run(options.shell, plain=options.plain, bpython=options.bpython,
            import_models=options.import_models, startfile=options.run,
            cron_job=options.cron_job)
        return

    if options.cron_run:
        # run cron (extcron) and exit
        logger.debug('Starting extcron...')
        global_settings.web2py_crontype = 'external'
        extcron = newcron.extcron(options.folder, apps=options.crontabs)
        extcron.start()
        extcron.join()
        return

    if not options.with_scheduler and options.schedulers:
        # run schedulers and exit
        try:
            start_schedulers(options)
        except KeyboardInterrupt:
            pass
        return

    if options.with_cron:
        if options.soft_cron:
            print('Using cron software emulation (but this is not very efficient)')
            global_settings.web2py_crontype = 'soft'
        else:
            # start hardcron thread
            logger.debug('Starting hardcron...')
            global_settings.web2py_crontype = 'hard'
            newcron.hardcron(options.folder, apps=options.crontabs).start()

    # if no password provided and have Tk library start GUI (when not
    # explicitly disabled), we also need a GUI to put in taskbar (system tray)
    # when requested
    root = None

    if (not options.no_gui and options.password == '<ask>') or options.taskbar:
        try:
            if PY2:
                import Tkinter as tkinter
            else:
                import tkinter
            root = tkinter.Tk()
        except (ImportError, OSError):
            logger.warn(
                'GUI not available because Tk library is not installed')
            options.no_gui = True
        except:
            logger.exception('cannot get Tk root window, GUI disabled')
            options.no_gui = True

    if root:
        # run GUI and exit
        root.focus_force()

        # Mac OS X - make the GUI window rise to the top
        if os.path.exists("/usr/bin/osascript"):
            applescript = """
tell application "System Events"
    set proc to first process whose unix id is %d
    set frontmost of proc to true
end tell
""" % (os.getpid())
            os.system("/usr/bin/osascript -e '%s'" % applescript)

        # web2pyDialog takes care of schedulers
        master = web2pyDialog(root, options)
        signal.signal(signal.SIGTERM, lambda a, b: master.quit())

        try:
            root.mainloop()
        except:
            master.quit()

        sys.exit()

    spt = None

    if options.with_scheduler and options.schedulers:
        # start schedulers in a separate thread
        spt = threading.Thread(target=start_schedulers, args=(options,))
        spt.start()

    # start server

    if options.password == '<ask>':
        options.password = getpass.getpass('choose a password:'******'no password, disable admin interface')

    # Use first interface IP and port if interfaces specified, since the
    # interfaces option overrides the IP (and related) options.
    if not options.interfaces:
        ip = options.ip
        port = options.port
    else:
        first_if = options.interfaces[0]
        ip = first_if[0]
        port = first_if[1]

    if options.server_key and options.server_cert:
        proto = 'https'
    else:
        proto = 'http'

    url = get_url(ip, proto=proto, port=port)

    if not options.no_banner:
        message = '\nplease visit:\n\t%s\n'
        if sys.platform.startswith('win'):
            message += 'use "taskkill /f /pid %i" to shutdown the web2py server\n\n'
        else:
            message += 'use "kill -SIGTERM %i" to shutdown the web2py server\n\n'
        print(message % (url, os.getpid()))

    # enhance linecache.getline (used by debugger) to look at the source file
    # if the line was not found (under py2exe & when file was modified)
    import linecache
    py2exe_getline = linecache.getline

    def getline(filename, lineno, *args, **kwargs):
        line = py2exe_getline(filename, lineno, *args, **kwargs)
        if not line:
            try:
                with open(filename, "rb") as f:
                    for i, line in enumerate(f):
                        line = line.decode('utf-8')
                        if lineno == i + 1:
                            break
                    else:
                        line = ''
            except (IOError, OSError):
                line = ''
        return line
    linecache.getline = getline

    server = main.HttpServer(ip=ip,
                             port=port,
                             password=options.password,
                             pid_filename=options.pid_filename,
                             log_filename=options.log_filename,
                             profiler_dir=options.profiler_dir,
                             ssl_certificate=options.server_cert,
                             ssl_private_key=options.server_key,
                             ssl_ca_certificate=options.ca_cert,
                             min_threads=options.min_threads,
                             max_threads=options.max_threads,
                             server_name=options.server_name,
                             request_queue_size=options.request_queue_size,
                             timeout=options.timeout,
                             socket_timeout=options.socket_timeout,
                             shutdown_timeout=options.shutdown_timeout,
                             path=options.folder,
                             interfaces=options.interfaces)

    try:
        server.start()
    except KeyboardInterrupt:
        server.stop()
        if spt is not None:
            try:
                spt.join()
            except:
                logger.exception('error terminating schedulers')
                pass
    logging.shutdown()
Exemple #3
0
def start():
    """ Start server  """

    # ## get command line arguments

    (options, args) = console()
    print ProgramName
    print ProgramAuthor
    print ProgramVersion

    from gluon.sql import drivers
    print 'Database drivers available: %s' % ', '.join(drivers)

    # ## if -W install/start/stop web2py as service

    if options.winservice:
        if os.name == 'nt':
            web2py_windows_service_handler(['', options.winservice],
                    options.config)
        else:
            print 'Error: windows services not supported on this platform'
            sys.exit(1)
        return

    # ## if -T run doctests

    if options.test:
        test(options.test, verbose=options.verbose)
        return

    # ## if -S start interactive shell

    if options.shell:
        run(options.shell, plain=options.plain,
            import_models=options.import_models, startfile=options.run)
        return

    # ## if -L load options from options.config file

    if options.config:
        try:
            options = __import__(options.config, [], [], '')
        except Exception:
            print 'Cannot import config file [%s]' % options.config
            sys.exit(1)

    # ## if -C start cron run
    # ## if -N disable cron in this *process* - note, startup tasks WILL be run regardless !

    if options.extcron or options.nocron:
        gluon.contrib.cron.crontype = 'External'
        if options.extcron:
            cron = gluon.contrib.cron.extcron()
            cron.start()
            cron.join()
            return

    # ## if no password provided and havetk start Tk interface
    # ## or start interface if we want to put in taskbar (system tray)

    try:
        options.taskbar
    except:
        options.taskbar = False

    if options.taskbar and os.name != 'nt':
        print 'Error: taskbar not supported on this platform'
        sys.exit(1)

    root = None

    if options.password == '<ask>' and havetk or options.taskbar and havetk:
        try:
            root = Tkinter.Tk()
        except:
            pass

    if root:
        root.focus_force()
        presentation(root)
        master = web2pyDialog(root, options)
        signal.signal(signal.SIGTERM, lambda a, b: master.quit())

        try:
            root.mainloop()
        except:
            master.quit()

        sys.exit()

    # ## if no tk and no password, ask for a password

    if not root and options.password == '<ask>':
        options.password = raw_input('choose a password:'******'no password, no admin interface'

    # ## start server

    (ip, port) = (options.ip, int(options.port))
    
    print 'please visit:'
    print '\thttp://%s:%s' % (ip, port)
    print 'use "kill -SIGTERM %i" to shutdown the web2py server' % os.getpid()

    server = HttpServer(ip=ip,
                        port=port,
                        password=options.password,
                        pid_filename=options.pid_filename,
                        log_filename=options.log_filename,
                        profiler_filename=options.profiler_filename,
                        ssl_certificate=options.ssl_certificate,
                        ssl_private_key=options.ssl_private_key,
                        numthreads=options.numthreads,
                        server_name=options.server_name,
                        request_queue_size=options.request_queue_size,
                        timeout=options.timeout,
                        shutdown_timeout=options.shutdown_timeout,
                        path=options.folder)

    try:
        server.start()
    except KeyboardInterrupt:
        server.stop()
Exemple #4
0
def start(cron=True):
    """ Starts server and other services """

    # get command line arguments
    (options, args) = console()

    # FIXME: this should be anticipated in console()
    if options.config:
        # import options from options.config file
        try:
            options2 = __import__(options.config)
        except:
            sys.stderr.write("Cannot import config file %s\n" % options.config)
            sys.exit(1)
        for key in dir(options2):
            # FIXME: better import condition, not all options attributes
            #        should be sourced from config file
            if hasattr(options, key):
                setattr(options, key, getattr(options2, key))

    if not options.nobanner:
        # banner
        print(ProgramName)
        print(ProgramAuthor)
        print(ProgramVersion)
        from pydal.drivers import DRIVERS
        print('Database drivers available: %s' % ', '.join(DRIVERS))

    if options.test:
        # run doctests and exit
        test(options.test, verbose=options.verbose)
        return

    if options.shell:
        # run interactive shell and exit
        if options.folder:
            os.chdir(options.folder)
        sys.argv = [options.run] + options.args
        run(options.shell, plain=options.plain, bpython=options.bpython,
            import_models=options.import_models, startfile=options.run,
            cronjob=options.cronjob)
        return

    if options.extcron:
        # run cron (extcron) and exit
        logger.debug('Starting extcron...')
        global_settings.web2py_crontype = 'external'
        if options.scheduler:
            # run cron for applications listed with --scheduler (-K)
            apps = [app.strip() for app in options.scheduler.split(
                ',') if check_existent_app(options, app.strip())]
        else:
            apps = None
        extcron = newcron.extcron(options.folder, apps=apps)
        extcron.start()
        extcron.join()
        return

    if options.scheduler and not options.with_scheduler:
        # run schedulers and exit
        try:
            start_schedulers(options)
        except KeyboardInterrupt:
            pass
        return

    if cron and options.runcron:
        if options.softcron:
            print('Using softcron (but this is not very efficient)')
            global_settings.web2py_crontype = 'soft'
        else:
            # start hardcron thread
            logger.debug('Starting hardcron...')
            global_settings.web2py_crontype = 'hard'
            newcron.hardcron(options.folder).start()

    # if no password provided and have Tk library start GUI (when not
    # explicitly disabled), we also need a GUI to put in taskbar (system tray)
    # when requested

    # FIXME: this check should be done first
    if options.taskbar and os.name != 'nt':
        sys.stderr.write('Error: taskbar not supported on this platform\n')
        sys.exit(1)

    root = None

    if (not options.nogui and options.password == '<ask>') or options.taskbar:
        try:
            if PY2:
                import Tkinter as tkinter
            else:
                import tkinter
            root = tkinter.Tk()
        except (ImportError, OSError):
            logger.warn(
                'GUI not available because Tk library is not installed')
            options.nogui = True
        except:
            logger.exception('cannot get Tk root window, GUI disabled')
            options.nogui = True

    if root:
        # run GUI and exit
        root.focus_force()

        # Mac OS X - make the GUI window rise to the top
        if os.path.exists("/usr/bin/osascript"):
            applescript = """
tell application "System Events"
    set proc to first process whose unix id is %d
    set frontmost of proc to true
end tell
""" % (os.getpid())
            os.system("/usr/bin/osascript -e '%s'" % applescript)

        # web2pyDialog takes care of schedulers
        master = web2pyDialog(root, options)
        signal.signal(signal.SIGTERM, lambda a, b: master.quit())

        try:
            root.mainloop()
        except:
            master.quit()

        sys.exit()

    if options.password == '<ask>':
        options.password = getpass.getpass('choose a password:'******'no password, disable admin interface')

    spt = None

    if options.scheduler and options.with_scheduler:
        # start schedulers in a separate thread
        spt = threading.Thread(target=start_schedulers, args=(options,))
        spt.start()

    # start server

    # Use first interface IP and port if interfaces specified, since the
    # interfaces option overrides the IP (and related) options.
    if not options.interfaces:
        ip = options.ip
        port = int(options.port)
    else:
        first_if = options.interfaces[0]
        ip = first_if[0]
        port = first_if[1]

    if options.ssl_certificate or options.ssl_private_key:
        proto = 'https'
    else:
        proto = 'http'

    url = get_url(ip, proto=proto, port=port)

    if not options.nobanner:
        message = '\nplease visit:\n\t%s\n'
        if sys.platform.startswith('win'):
            message += 'use "taskkill /f /pid %i" to shutdown the web2py server\n\n'
        else:
            message += 'use "kill -SIGTERM %i" to shutdown the web2py server\n\n'
        print(message % (url, os.getpid()))

    # enhance linecache.getline (used by debugger) to look at the source file
    # if the line was not found (under py2exe & when file was modified)
    import linecache
    py2exe_getline = linecache.getline

    def getline(filename, lineno, *args, **kwargs):
        line = py2exe_getline(filename, lineno, *args, **kwargs)
        if not line:
            try:
                with open(filename, "rb") as f:
                    for i, line in enumerate(f):
                        line = line.decode('utf-8')
                        if lineno == i + 1:
                            break
                    else:
                        line = ''
            except (IOError, OSError):
                line = ''
        return line
    linecache.getline = getline

    server = main.HttpServer(ip=ip,
                             port=port,
                             password=options.password,
                             pid_filename=options.pid_filename,
                             log_filename=options.log_filename,
                             profiler_dir=options.profiler_dir,
                             ssl_certificate=options.ssl_certificate,
                             ssl_private_key=options.ssl_private_key,
                             ssl_ca_certificate=options.ssl_ca_certificate,
                             min_threads=options.minthreads,
                             max_threads=options.maxthreads,
                             server_name=options.server_name,
                             request_queue_size=options.request_queue_size,
                             timeout=options.timeout,
                             socket_timeout=options.socket_timeout,
                             shutdown_timeout=options.shutdown_timeout,
                             path=options.folder,
                             interfaces=options.interfaces)

    try:
        server.start()
    except KeyboardInterrupt:
        server.stop()
        if spt is not None:
            try:
                spt.join()
            except:
                logger.exception('error terminating schedulers')
                pass
    logging.shutdown()
Exemple #5
0
def start(cron=True):
    """ Starts server  """

    # ## get command line arguments

    (options, args) = console()

    if not options.nobanner:
        print(ProgramName)
        print(ProgramAuthor)
        print(ProgramVersion)

    from pydal.drivers import DRIVERS
    if not options.nobanner:
        print('Database drivers available: %s' % ', '.join(DRIVERS))

    # ## if -L load options from options.config file
    if options.config:
        try:
            options2 = __import__(options.config, {}, {}, '')
        except Exception:
            try:
                # Jython doesn't like the extra stuff
                options2 = __import__(options.config)
            except Exception:
                print('Cannot import config file [%s]' % options.config)
                sys.exit(1)
        for key in dir(options2):
            if hasattr(options, key):
                setattr(options, key, getattr(options2, key))

    # ## if -T run doctests (no cron)
    if hasattr(options, 'test') and options.test:
        test(options.test, verbose=options.verbose)
        return

    # ## if -S start interactive shell (also no cron)
    if options.shell:
        if options.folder:
            os.chdir(options.folder)
        if not options.args is None:
            sys.argv[:] = options.args
        run(options.shell, plain=options.plain, bpython=options.bpython,
            import_models=options.import_models, startfile=options.run,
            cronjob=options.cronjob)
        return

    # ## if -C start cron run (extcron) and exit
    # ##    -K specifies optional apps list (overloading scheduler)
    if options.extcron:
        logger.debug('Starting extcron...')
        global_settings.web2py_crontype = 'external'
        if options.scheduler:   # -K
            apps = [app.strip() for app in options.scheduler.split(
                ',') if check_existent_app(options, app.strip())]
        else:
            apps = None
        extcron = newcron.extcron(options.folder, apps=apps)
        extcron.start()
        extcron.join()
        return

    # ## if -K
    if options.scheduler and not options.with_scheduler:
        try:
            start_schedulers(options)
        except KeyboardInterrupt:
            pass
        return

    # ## if -H cron is enabled in this *process*
    # ## if --softcron use softcron
    # ## use hardcron in all other cases
    if cron and options.runcron and options.softcron:
        print('Using softcron (but this is not very efficient)')
        global_settings.web2py_crontype = 'soft'
    elif cron and options.runcron:
        logger.debug('Starting hardcron...')
        global_settings.web2py_crontype = 'hard'
        newcron.hardcron(options.folder).start()

    # ## if no password provided and havetk start Tk interface
    # ## or start interface if we want to put in taskbar (system tray)

    try:
        options.taskbar
    except:
        options.taskbar = False

    if options.taskbar and os.name != 'nt':
        print('Error: taskbar not supported on this platform')
        sys.exit(1)

    root = None

    if not options.nogui and options.password == '<ask>':
        try:
            if PY2:
                import Tkinter as tkinter
            else:
                import tkinter
            havetk = True
            try:
                root = tkinter.Tk()
            except:
                pass
        except (ImportError, OSError):
            logger.warn(
                'GUI not available because Tk library is not installed')
            havetk = False
            options.nogui = True

    if root:
        root.focus_force()

        # Mac OS X - make the GUI window rise to the top
        if os.path.exists("/usr/bin/osascript"):
            applescript = """
tell application "System Events"
    set proc to first process whose unix id is %d
    set frontmost of proc to true
end tell
""" % (os.getpid())
            os.system("/usr/bin/osascript -e '%s'" % applescript)

        master = web2pyDialog(root, options)
        signal.signal(signal.SIGTERM, lambda a, b: master.quit())

        try:
            root.mainloop()
        except:
            master.quit()

        sys.exit()

    # ## if no tk and no password, ask for a password

    if not root and options.password == '<ask>':
        options.password = getpass.getpass('choose a password:'******'no password, no admin interface')

    # ##-X (if no tk, the widget takes care of it himself)
    if not root and options.scheduler and options.with_scheduler:
        t = threading.Thread(target=start_schedulers, args=(options,))
        t.start()

    # ## start server

    # Use first interface IP and port if interfaces specified, since the
    # interfaces option overrides the IP (and related) options.
    if not options.interfaces:
        (ip, port) = (options.ip, int(options.port))
    else:
        first_if = options.interfaces[0]
        (ip, port) = first_if[0], first_if[1]

    # Check for non default value for ssl inputs
    if (len(options.ssl_certificate) > 0) or (len(options.ssl_private_key) > 0):
        proto = 'https'
    else:
        proto = 'http'

    url = get_url(ip, proto=proto, port=port)

    if not options.nobanner:
        message = '\nplease visit:\n\t%s\n' % url
        if sys.platform.startswith('win'):
            message += 'use "taskkill /f /pid %i" to shutdown the web2py server\n\n' % os.getpid()
        else:
            message += 'use "kill -SIGTERM %i" to shutdown the web2py server\n\n' % os.getpid()
        print(message)

    # enhance linecache.getline (used by debugger) to look at the source file
    # if the line was not found (under py2exe & when file was modified)
    import linecache
    py2exe_getline = linecache.getline

    def getline(filename, lineno, *args, **kwargs):
        line = py2exe_getline(filename, lineno, *args, **kwargs)
        if not line:
            try:
                f = open(filename, "r")
                try:
                    for i, line in enumerate(f):
                        if lineno == i + 1:
                            break
                    else:
                        line = None
                finally:
                    f.close()
            except (IOError, OSError):
                line = None
        return line
    linecache.getline = getline

    server = main.HttpServer(ip=ip,
                             port=port,
                             password=options.password,
                             pid_filename=options.pid_filename,
                             log_filename=options.log_filename,
                             profiler_dir=options.profiler_dir,
                             ssl_certificate=options.ssl_certificate,
                             ssl_private_key=options.ssl_private_key,
                             ssl_ca_certificate=options.ssl_ca_certificate,
                             min_threads=options.minthreads,
                             max_threads=options.maxthreads,
                             server_name=options.server_name,
                             request_queue_size=options.request_queue_size,
                             timeout=options.timeout,
                             socket_timeout=options.socket_timeout,
                             shutdown_timeout=options.shutdown_timeout,
                             path=options.folder,
                             interfaces=options.interfaces)

    try:
        server.start()
    except KeyboardInterrupt:
        server.stop()
        try:
            t.join()
        except:
            pass
    logging.shutdown()