Example #1
0
def show_pass_dialog(argv):
    from xpra.platform.gui import ready as gui_ready
    from xpra.gtk_common.quit import gtk_main_quit_on_fatal_exceptions_enable
    from xpra.platform.gui import init as gui_init, set_default_icon

    set_default_icon("authentication.png")
    gui_init()

    gtk_main_quit_on_fatal_exceptions_enable()

    log("show_pass_dialog(%s)", argv)
    def arg(n):
        if len(argv)<=n:
            return ""
        return argv[n].replace("\\n\\r", "\\n").replace("\\n", "\n")
    title = arg(0) or "Enter Password"
    prompt = arg(1)
    icon = arg(2)
    app = PasswordInputDialogWindow(title, prompt, icon)
    register_os_signals(app.quit, "Password Dialog")
    gui_ready()
    app.show()
    r = app.run()
    if r==0:
        password = app.get_password()
        sys.stdout.write(password)
        sys.stdout.flush()
    return r
Example #2
0
def main():  # pragma: no cover
    from xpra.platform import program_context
    from xpra.platform.gui import ready as gui_ready, init as gui_init
    gui_init()
    with program_context("Start-New-Command", "Start New Command"):
        #logging init:
        if "-v" in sys.argv:
            enable_debug_for("util")

        client = AdHocStruct()
        client.server_last_info_time = monotonic_time()
        commands_info = {
            0: {
                'returncode': None,
                'name': 'xterm',
                'pid': 542,
                'dead': False,
                'ignore': True,
                'command': ('xterm', ),
                'forget': False
            },
            'start-child': (),
            'start-new': True,
            'start-after-connect-done': True,
            'start': ('xterm', ),
            'start-after-connect': (),
            'start-child-on-connect': (),
            'exit-with-children': False,
            'start-child-after-connect': (),
            'start-on-connect': (),
        }
        client.server_last_info = {"commands": commands_info}
        client.server_start_new_commands = True
        client.server_commands_signals = ("SIGINT", "SIGTERM", "SIGUSR1")

        def noop(*_args):
            pass

        client.send_info_request = noop
        client.send = noop
        window1 = AdHocStruct()
        window1._metadata = {"pid": 542}
        client._id_to_window = {1: window1}

        def show_start_new_command(*_args):
            from xpra.client.gtk_base.start_new_command import getStartNewCommand
            getStartNewCommand(None).show()

        client.show_start_new_command = show_start_new_command

        app = ServerCommandsWindow(client)
        app.close = app.quit
        register_os_signals(app.quit)
        try:
            gui_ready()
            app.show()
            app.run()
        except KeyboardInterrupt:
            pass
        return 0
Example #3
0
def main():
    from xpra.platform import init,clean
    from xpra.platform.gui import init as gui_init
    from xpra.util import pver
    try:
        init("OpenGL-Check")
        gui_init()
        verbose = "-v" in sys.argv or "--verbose" in sys.argv
        if verbose:
            log.enable_debug()
        #replace ImportError with a log message:
        global gl_check_error
        errors = []
        def log_error(msg):
            log.error("ERROR: %s", msg)
            errors.append(msg)
        gl_check_error = log_error
        props = check_support(0, True, verbose)
        log.info("")
        if len(errors)>0:
            log.info("OpenGL errors:")
            for e in errors:
                log.info("  %s", e)
        log.info("")
        log.info("OpenGL properties:")
        for k in sorted(props.keys()):
            v = props[k]
            #skip not human readable:
            if k not in ("extensions", "glconfig"):
                log.info("* %s : %s", str(k).ljust(24), pver(v))
        return len(errors)
    finally:
        clean()
Example #4
0
def main():
    from xpra.platform.gui import init as gui_init
    from xpra.platform import program_context
    with program_context("XSettings"):
        gui_init()
        verbose = "-v" in sys.argv or "--verbose" in sys.argv
        if verbose:
            from xpra.log import get_all_loggers
            for x in get_all_loggers():
                x.enable_debug()

        #naughty, but how else can I hook this up?
        if os.name!="posix":
            print("xsettings require a posix OS")
            return 1

        from xpra.x11.bindings import posix_display_source  #@UnresolvedImport - takes care of hooking up the display
        assert posix_display_source
        from xpra.x11.bindings.window_bindings import X11WindowBindings #@UnresolvedImport
        window_bindings = X11WindowBindings()
        selection = "_XSETTINGS_S0"
        owner = window_bindings.XGetSelectionOwner(selection)
        print("owner(%s)=%#x" % (selection, owner))
        XSETTINGS = "_XSETTINGS_SETTINGS"
        data = window_bindings.XGetWindowProperty(owner, XSETTINGS, XSETTINGS)
        serial, settings = get_settings(None, data)
        print("serial=%s" % serial)
        print("%s settings:" % len(settings))
        for s in settings:
            print(s)
        return 0
Example #5
0
def main(force_enable=False):
    from xpra.platform import program_context
    from xpra.platform.gui import init as gui_init
    from xpra.util import print_nested_dict
    from xpra.log import enable_color
    with program_context("OpenGL-Check"):
        gui_init()
        enable_color()
        verbose = "-v" in sys.argv or "--verbose" in sys.argv
        if verbose:
            log.enable_debug()
            from xpra.client.gl.gtk_base.gtk_compat import log as clog
            clog.enable_debug()
        #replace ImportError with a log message:
        global gl_check_error
        errors = []

        def log_error(msg):
            log.error("ERROR: %s", msg)
            errors.append(msg)

        gl_check_error = log_error
        props = check_support(force_enable, verbose)
        log.info("")
        if len(errors) > 0:
            log.info("OpenGL errors:")
            for e in errors:
                log.info("  %s", e)
        log.info("")
        log.info("OpenGL properties:")
        print_nested_dict(props)
        return len(errors)
Example #6
0
def show_confirm_dialog(argv):
    from xpra.platform.gui import ready as gui_ready
    from xpra.gtk_common.quit import gtk_main_quit_on_fatal_exceptions_enable
    from xpra.platform.gui import init as gui_init

    gui_init()
    gtk_main_quit_on_fatal_exceptions_enable()

    log("show_confirm_dialog(%s)", argv)
    def arg(n):
        if len(argv)<=n:
            return ""
        return argv[n].replace("\\n\\r", "\\n").replace("\\n", "\n")
    title = arg(0) or "Confirm Key"
    prompt = arg(1)
    info = arg(2)
    icon = arg(3)
    buttons = []
    n = 4
    while len(argv)>(n+1):
        label = arg(n)
        try:
            code = int(arg(n+1))
        except ValueError as e:
            log.error("Error: confirm dialog cannot parse code '%s': %s", arg(n+1), e)
            return 1
        buttons.append((label, code))
        n += 2
    app = ConfirmDialogWindow(title, prompt, info, icon, buttons)
    register_os_signals(app.quit)
    gui_ready()
    force_focus()
    app.show()
    return app.run()
Example #7
0
def main():
    from xpra.platform.gui import init as gui_init
    from xpra.platform import program_context
    from xpra.gtk_common.error import xsync
    with program_context("XSettings"):
        gui_init()
        verbose = "-v" in sys.argv or "--verbose" in sys.argv
        if verbose:
            from xpra.log import get_all_loggers
            for x in get_all_loggers():
                x.enable_debug()

        #naughty, but how else can I hook this up?
        if os.name != "posix":
            print("xsettings require a posix OS")
            return 1

        with xsync:
            from xpra.x11.bindings.posix_display_source import init_posix_display_source  #@UnresolvedImport
            init_posix_display_source()
            from xpra.x11.bindings.window_bindings import X11WindowBindings  #@UnresolvedImport
            window_bindings = X11WindowBindings()
            selection = "_XSETTINGS_S0"
            owner = window_bindings.XGetSelectionOwner(selection)
            print("owner(%s)=%#x" % (selection, owner))
            XSETTINGS = "_XSETTINGS_SETTINGS"
            if owner:
                data = window_bindings.XGetWindowProperty(
                    owner, XSETTINGS, XSETTINGS)
                serial, settings = get_settings(None, data)
                print("serial=%s" % serial)
                print("%s settings:" % len(settings))
                for s in settings:
                    print(s)
            return 0
Example #8
0
def show_pass_dialog(argv):
    from xpra.os_util import SIGNAMES
    from xpra.platform.gui import ready as gui_ready
    from xpra.gtk_common.quit import gtk_main_quit_on_fatal_exceptions_enable
    from xpra.platform.gui import init as gui_init

    gui_init()
    gtk_main_quit_on_fatal_exceptions_enable()

    log("show_pass_dialog(%s)", argv)

    def arg(n):
        if len(argv) <= n:
            return ""
        return argv[n].replace("\\n\\r", "\\n").replace("\\n", "\n")

    title = arg(0) or "Enter Password"
    prompt = arg(1)
    icon = arg(2)
    app = PasswordInputDialogWindow(title, prompt, icon)

    def app_signal(signum, _frame):
        print("")
        log.info("got signal %s", SIGNAMES.get(signum, signum))
        app.quit()

    signal.signal(signal.SIGINT, app_signal)
    signal.signal(signal.SIGTERM, app_signal)
    gui_ready()
    app.show()
    return app.run()
Example #9
0
def main():
    from xpra.platform import init, clean
    from xpra.platform.gui import init as gui_init
    from xpra.util import pver
    try:
        init("OpenGL-Check")
        gui_init()
        verbose = "-v" in sys.argv or "--verbose" in sys.argv
        if verbose:
            log.enable_debug()
        #replace ImportError with a log message:
        global gl_check_error
        errors = []

        def log_error(msg):
            log.error("ERROR: %s", msg)
            errors.append(msg)

        gl_check_error = log_error
        props = check_support(0, True, verbose)
        log.info("")
        if len(errors) > 0:
            log.info("OpenGL errors:")
            for e in errors:
                log.info("  %s", e)
        log.info("")
        log.info("OpenGL properties:")
        for k in sorted(props.keys()):
            v = props[k]
            #skip not human readable:
            if k not in ("extensions", "glconfig"):
                log.info("* %s : %s", str(k).ljust(24), pver(v))
        return len(errors)
    finally:
        clean()
Example #10
0
def main(force_enable=False):
    from xpra.platform import program_context
    from xpra.platform.gui import init as gui_init
    from xpra.util import print_nested_dict
    from xpra.log import enable_color

    with program_context("OpenGL-Check"):
        gui_init()
        enable_color()
        verbose = "-v" in sys.argv or "--verbose" in sys.argv
        if verbose:
            log.enable_debug()
            from xpra.client.gl.gtk_compat import log as clog

            clog.enable_debug()
        # replace ImportError with a log message:
        global gl_check_error
        errors = []

        def log_error(msg):
            log.error("ERROR: %s", msg)
            errors.append(msg)

        gl_check_error = log_error
        props = check_support(force_enable, verbose)
        log.info("")
        if len(errors) > 0:
            log.info("OpenGL errors:")
            for e in errors:
                log.info("  %s", e)
        log.info("")
        log.info("OpenGL properties:")
        print_nested_dict(props)
        return len(errors)
Example #11
0
def main():
    from xpra.platform import program_context
    from xpra.platform.gui import init as gui_init, ready as gui_ready
    gui_init()
    with program_context("Start-New-Command", "Start New Command"):
        #logging init:
        if "-v" in sys.argv:
            from xpra.log import enable_debug_for
            enable_debug_for("util")

        from xpra.gtk_common.quit import gtk_main_quit_on_fatal_exceptions_enable
        gtk_main_quit_on_fatal_exceptions_enable()

        app = OpenRequestsWindow()

        def cb(accept):
            print("callback: %s" % (accept, ))

        app.add_request(cb, "1", "file", "someimage.png", 16384, False, True,
                        10)
        app.add_request(cb, "2", "file", "otherimage.png", 16384, False, True,
                        100)
        app.add_request(cb, "3", "file", "document.pdf", 32768, True, False,
                        200)
        app.add_request(cb, "4", "url", "https://xpra.org/", 0, False, True,
                        300)
        app.hide = app.quit
        register_os_signals(app.quit)
        try:
            gui_ready()
            app.show()
            app.run()
        except KeyboardInterrupt:
            pass
        return 0
Example #12
0
File: about.py Project: ljmljz/xpra
def main():
    from xpra.platform import program_context
    from xpra.platform.gui import init as gui_init
    with program_context("About"):
        gui_init()
    about(on_close=gtk.main_quit)
    gtk.main()
Example #13
0
def main():
    from xpra.platform import program_context
    from xpra.platform.gui import init as gui_init
    with program_context("About"):
        gui_init()
    about(on_close=Gtk.main_quit)
    Gtk.main()
Example #14
0
def show_pass_dialog(argv):
    from xpra.platform.gui import ready as gui_ready, init as gui_init, set_default_icon

    set_default_icon("authentication.png")
    gui_init()

    log("show_pass_dialog(%s)", argv)

    def arg(n):
        if len(argv) <= n:
            return ""
        return argv[n].replace("\\n\\r", "\\n").replace("\\n", "\n")

    title = arg(0) or "Enter Password"
    prompt = arg(1)
    icon = arg(2)
    app = PasswordInputDialogWindow(title, prompt, icon)
    register_os_signals(app.quit, "Password Dialog")
    gui_ready()
    app.show()
    p = app.run()
    if p is not None:
        sys.stdout.write(p)
        sys.stdout.flush()
        return 0
    return 1
Example #15
0
def main():
    from xpra.platform.gui import init as gui_init
    from xpra.platform import init as platform_init,clean
    try:
        platform_init("XSettings")
        gui_init()
        verbose = "-v" in sys.argv or "--verbose" in sys.argv
        if verbose:
            from xpra.log import get_all_loggers
            for x in get_all_loggers():
                x.enable_debug()

        #naughty, but how else can I hook this up?
        import os
        if os.name!="posix":
            print("xsettings require a posix OS")
            return 1

        from xpra.x11.bindings import posix_display_source  #@UnresolvedImport - takes care of hooking up the display
        assert posix_display_source
        from xpra.x11.bindings.window_bindings import X11WindowBindings #@UnresolvedImport
        window_bindings = X11WindowBindings()
        selection = "_XSETTINGS_S0"
        owner = window_bindings.XGetSelectionOwner(selection)
        print("owner(%s)=%#x" % (selection, owner))
        XSETTINGS = "_XSETTINGS_SETTINGS"
        data = window_bindings.XGetWindowProperty(owner, XSETTINGS, XSETTINGS)
        serial, settings = get_settings(None, data)
        print("serial=%s" % serial)
        print("%s settings:" % len(settings))
        for s in settings:
            print(s)
        return 0
    finally:
        clean()
Example #16
0
def main():
    from xpra.gtk_common.quit import gtk_main_quit_on_fatal_exceptions_enable
    gtk_main_quit_on_fatal_exceptions_enable()

    from xpra.platform import init as platform_init
    from xpra.platform.gui import ready as gui_ready
    platform_init("Xpra-Launcher", "Xpra Connection Launcher")
    gui_init()

    #logging init:
    from xpra.scripts.main import parse_cmdline, fixup_debug_option
    options, args = parse_cmdline(sys.argv)
    debug = fixup_debug_option(options.debug)
    if debug:
        for x in debug.split(","):
            enable_debug_for(x)

    app = ApplicationWindow()
    def app_signal(signum, frame):
        print("")
        log("got signal %s" % SIGNAMES.get(signum, signum))
        def show_signal():
            app.show()
            app.client.cleanup()
            gobject.timeout_add(1000, app.set_info_text, "got signal %s" % SIGNAMES.get(signum, signum))
            gobject.timeout_add(1000, app.set_info_color, True)
        #call from UI thread:
        gobject.idle_add(show_signal)
    signal.signal(signal.SIGINT, app_signal)
    signal.signal(signal.SIGTERM, app_signal)
    has_file = len(args) == 1
    if has_file:
        app.update_options_from_file(args[0])
    debug = fixup_debug_option(app.config.debug)
    if debug:
        for x in debug.split(","):
            enable_debug_for(x)
   #suspend tray workaround for our window widgets:
    try:
        set_use_tray_workaround(False)
        app.create_window()
    finally:
        set_use_tray_workaround(True)
    try:
        app.update_gui_from_config()
        if app.config.autoconnect:
            #file says we should connect,
            #do that only (not showing UI unless something goes wrong):
            gobject.idle_add(app.do_connect)
        if not has_file:
            app.reset_errors()
        gui_ready()
        if not app.config.autoconnect or app.config.debug:
            app.show()
        app.run()
    except KeyboardInterrupt:
        pass
    return 0
Example #17
0
def main():
    if sys.platform.startswith("win"):
        from xpra.platform.win32 import set_log_filename
        set_log_filename("Xpra-Launcher.log")
    set_prgname("Xpra-Launcher")
    platform_init()
    gui_init()

    #logging init:
    from xpra.scripts.main import parse_cmdline
    _, options, args = parse_cmdline(sys.argv)
    import logging
    logging.basicConfig(format="%(asctime)s %(message)s")
    if options.debug:
        logging.root.setLevel(logging.DEBUG)
    else:
        logging.root.setLevel(logging.INFO)

    app = ApplicationWindow()

    def app_signal(signum, frame):
        print("")
        log("got signal %s" % SIGNAMES.get(signum, signum))

        def show_signal():
            app.show()
            app.client.cleanup()
            gobject.timeout_add(1000, app.set_info_text,
                                "got signal %s" % SIGNAMES.get(signum, signum))
            gobject.timeout_add(1000, app.set_info_color, True)

        #call from UI thread:
        gobject.idle_add(show_signal)

    signal.signal(signal.SIGINT, app_signal)
    signal.signal(signal.SIGTERM, app_signal)
    has_file = len(args) == 1
    if has_file:
        app.update_options_from_file(args[0])
    if app.config.debug:
        logging.root.setLevel(logging.DEBUG)
    app.create_window()
    try:
        app.update_gui_from_config()
        if app.config.autoconnect:
            #file says we should connect,
            #do that only (not showing UI unless something goes wrong):
            gobject.idle_add(app.do_connect)
        if not has_file:
            app.reset_errors()
        gui_ready()
        if not app.config.autoconnect or app.config.debug:
            app.show()
        app.run()
    except KeyboardInterrupt:
        pass
    return 0
Example #18
0
def main():
    if sys.platform.startswith("win"):
        from xpra.platform.win32 import set_log_filename
        set_log_filename("Xpra-Launcher.log")
    set_prgname("Xpra-Launcher")
    platform_init()
    gui_init()

    #logging init:
    from xpra.scripts.main import parse_cmdline
    _, options, args = parse_cmdline(sys.argv)
    import logging
    logging.basicConfig(format="%(asctime)s %(message)s")
    if options.debug:
        logging.root.setLevel(logging.DEBUG)
    else:
        logging.root.setLevel(logging.INFO)

    app = ApplicationWindow()
    def app_signal(signum, frame):
        print("")
        log("got signal %s" % SIGNAMES.get(signum, signum))
        def show_signal():
            app.show()
            app.client.cleanup()
            gobject.timeout_add(1000, app.set_info_text, "got signal %s" % SIGNAMES.get(signum, signum))
            gobject.timeout_add(1000, app.set_info_color, True)
        #call from UI thread:
        gobject.idle_add(show_signal)
    signal.signal(signal.SIGINT, app_signal)
    signal.signal(signal.SIGTERM, app_signal)
    has_file = len(args) == 1
    if has_file:
        app.update_options_from_file(args[0])
    if app.config.debug:
        logging.root.setLevel(logging.DEBUG)
    app.create_window()
    try:
        app.update_gui_from_config()
        if app.config.autoconnect:
            #file says we should connect,
            #do that only (not showing UI unless something goes wrong):
            gobject.idle_add(app.do_connect)
        if not has_file:
            app.reset_errors()
        gui_ready()
        if not app.config.autoconnect or app.config.debug:
            app.show()
        app.run()
    except KeyboardInterrupt:
        pass
    return 0
Example #19
0
def main():
    from xpra.platform import program_context
    with program_context("Session Access"):
        from xpra.platform.gui import init as gui_init
        gui_init()
        if len(sys.argv)<2:
            sys.stderr.write("usage: %s 'message' [timeout-in-seconds]\n" % sys.argv[0])
            sys.exit(4)
        info = sys.argv[1]
        if len(sys.argv)>=3:
            timeout = int(sys.argv[2])
        else:
            timeout = 600
        w = AuthDialog(info=info, timeout=timeout)
        gtk_main()
        return w.exit_code
Example #20
0
def main():
    from xpra.platform import init as platform_init
    from xpra.platform.gui import init as gui_init, ready as gui_ready
    platform_init("Xpra-Launcher", "Xpra Connection Launcher")
    gui_init()

    #logging init:
    from xpra.scripts.main import parse_cmdline
    _, options, args = parse_cmdline(sys.argv)
    if options.debug:
        from xpra.log import enable_debug_for
        enable_debug_for("all")

    app = ApplicationWindow()
    def app_signal(signum, frame):
        print("")
        log("got signal %s" % SIGNAMES.get(signum, signum))
        def show_signal():
            app.show()
            app.client.cleanup()
            gobject.timeout_add(1000, app.set_info_text, "got signal %s" % SIGNAMES.get(signum, signum))
            gobject.timeout_add(1000, app.set_info_color, True)
        #call from UI thread:
        gobject.idle_add(show_signal)
    signal.signal(signal.SIGINT, app_signal)
    signal.signal(signal.SIGTERM, app_signal)
    has_file = len(args) == 1
    if has_file:
        app.update_options_from_file(args[0])
    if app.config.debug:
        enable_debug_for("all")
    app.create_window()
    try:
        app.update_gui_from_config()
        if app.config.autoconnect:
            #file says we should connect,
            #do that only (not showing UI unless something goes wrong):
            gobject.idle_add(app.do_connect)
        if not has_file:
            app.reset_errors()
        gui_ready()
        if not app.config.autoconnect or app.config.debug:
            app.show()
        app.run()
    except KeyboardInterrupt:
        pass
    return 0
Example #21
0
def main():
    from xpra.platform import program_context
    from xpra.platform.gui import init as gui_init
    from xpra.util import print_nested_dict
    from xpra.log import enable_color
    with program_context("OpenGL-Check"):
        gui_init()
        enable_color()
        verbose = "-v" in sys.argv or "--verbose" in sys.argv
        if verbose:
            log.enable_debug()
        if POSIX and not OSX:
            from xpra.x11.gtk_x11.gdk_display_source import init_gdk_display_source
            init_gdk_display_source()
        force_enable = "-f" in sys.argv or "--force" in sys.argv
        from xpra.platform.gl_context import GLContext
        log("testing %s", GLContext)
        gl_context = GLContext()
        log("GLContext=%s", gl_context)
        #replace ImportError with a log message:
        global gl_check_error, raise_fatal_error
        errors = []

        def log_error(msg):
            log.error("ERROR: %s", msg)
            errors.append(msg)

        gl_check_error = log_error
        raise_fatal_error = log_error
        try:
            props = gl_context.check_support(force_enable)
        except Exception as e:
            props = {}
            log("check_support", exc_info=True)
            errors.append(e)
        log.info("")
        if len(errors) > 0:
            log.info("OpenGL errors:")
            for e in errors:
                log.info("  %s", e)
        if props:
            log.info("")
            log.info("OpenGL properties:")
            print_nested_dict(props)
        return len(errors)
Example #22
0
def main():
    from xpra.util import nonl, pver, flatten_dict, print_nested_dict
    def print_version_dict(d, vformat=pver):
        for k in sorted(d.keys()):
            v = d[k]
            print("* %-48s : %s" % (str(k).replace(".version", "").ljust(12), nonl(vformat(v))))
    from xpra.platform import program_context
    with program_context("GTK-Version-Info", "GTK Version Info"):
        from xpra.platform.gui import init as gui_init, ready
        gui_init()
        ready()
        from xpra.gtk_common import gtk_util
        if "-v" in sys.argv or "--verbose" in sys.argv:
            gtk_util.SHOW_ALL_VISUALS = True
        print("GTK Version:")
        print_version_dict(flatten_dict(gtk_util.get_gtk_version_info()))
        print("Display:")
        print_nested_dict(gtk_util.get_display_info(), vformat=str)
Example #23
0
def show_confirm_dialog(argv):
    from xpra.os_util import SIGNAMES
    from xpra.platform.gui import ready as gui_ready
    from xpra.gtk_common.quit import gtk_main_quit_on_fatal_exceptions_enable
    from xpra.platform.gui import init as gui_init

    gui_init()
    gtk_main_quit_on_fatal_exceptions_enable()

    log("show_confirm_dialog(%s)", argv)

    def arg(n):
        if len(argv) <= n:
            return ""
        return argv[n].replace("\\n\\r", "\\n").replace("\\n", "\n")

    title = arg(0) or "Confirm Key"
    prompt = arg(1)
    info = arg(2)
    icon = arg(3)
    buttons = []
    n = 4
    while len(argv) > (n + 1):
        label = arg(n)
        try:
            code = int(arg(n + 1))
        except ValueError as e:
            log.error("Error: confirm dialog cannot parse code '%s': %s",
                      arg(n + 1), e)
            return 1
        buttons.append((label, code))
        n += 2
    app = ConfirmDialogWindow(title, prompt, info, icon, buttons)

    def app_signal(signum, _frame):
        print("")
        log.info("got signal %s", SIGNAMES.get(signum, signum))
        app.quit()

    signal.signal(signal.SIGINT, app_signal)
    signal.signal(signal.SIGTERM, app_signal)
    gui_ready()
    app.show()
    return app.run()
Example #24
0
def main():  # pragma: no cover
    from xpra.platform.gui import init as gui_init, ready as gui_ready
    from xpra.platform import program_context
    gui_init()
    with program_context("Start-New-Command", "Start New Command"):
        #logging init:
        if "-v" in sys.argv:
            enable_debug_for("util")

        app = StartNewCommand()
        app.hide = app.quit
        register_os_signals(app.quit)
        try:
            gui_ready()
            app.show()
            app.run()
        except KeyboardInterrupt:
            pass
        return 0
Example #25
0
def show_pass_dialog(argv):
    from xpra.platform.gui import ready as gui_ready
    from xpra.gtk_common.quit import gtk_main_quit_on_fatal_exceptions_enable
    from xpra.platform.gui import init as gui_init

    gui_init()
    gtk_main_quit_on_fatal_exceptions_enable()

    log("show_pass_dialog(%s)", argv)
    def arg(n):
        if len(argv)<=n:
            return ""
        return argv[n].replace("\\n\\r", "\\n").replace("\\n", "\n")
    title = arg(0) or "Enter Password"
    prompt = arg(1)
    icon = arg(2)
    app = PasswordInputDialogWindow(title, prompt, icon)
    register_os_signals(app.quit)
    gui_ready()
    app.show()
    return app.run()
Example #26
0
def main():
    from xpra.util import nonl, pver

    def print_dict(d, vformat=pver):
        for k in sorted(d.keys()):
            v = d[k]
            print("* %-48s : %s" %
                  (str(k).replace(".version", "").ljust(12), nonl(vformat(v))))

    from xpra.platform import init, clean
    try:
        init("GTK-Version-Info", "GTK Version Info")
        from xpra.platform.gui import init as gui_init, ready
        gui_init()
        ready()
        from xpra.gtk_common.gtk_util import get_gtk_version_info, get_display_info
        print("GTK Version:")
        print_dict(get_gtk_version_info())
        print("Display:")
        print_dict(get_display_info(), vformat=str)
    finally:
        clean()
Example #27
0
def main():
    from xpra.platform import program_context
    from xpra.platform.gui import init as gui_init
    from xpra.util import print_nested_dict
    from xpra.log import enable_color, Logger
    with program_context("OpenGL Native Context Check"):
        gui_init()
        enable_color()
        log = Logger("opengl")
        verbose = "-v" in sys.argv or "--verbose" in sys.argv
        if verbose:
            log.enable_debug()
        if not GLContext:
            log.error("Error: no GLContext available on %s", sys.platform)
            return 1
        try:
            props = check_support()
        except Exception:
            log.error("%s().check_support()", exc_info=True)
            return 1
        log.info("")
        log.info("OpenGL properties:")
        print_nested_dict(props)
        return 0
GTK = True
PLATFORM_INIT = True
if PLATFORM_INIT:
    from xpra.platform.features import LOCAL_SERVERS_SUPPORTED, SHADOW_SUPPORTED
    from xpra.platform.options import add_client_options
    from xpra.platform.paths import get_default_socket_dir
    from xpra.platform import init as platform_init
    platform_init()
    nones = [x for x in (LOCAL_SERVERS_SUPPORTED, SHADOW_SUPPORTED, add_client_options, get_default_socket_dir) if x is None]
    assert len([])==0

PLATFORM_GUI_INIT = PLATFORM_INIT and True
if PLATFORM_GUI_INIT:
    from xpra.platform.gui import init as gui_init
    gui_init()

#from xpra.platform.shadow_server import ShadowServer
#from xpra.server.source import ServerSource
#from xpra.server.server_base import ServerBase


def main():
    init_main("Shadow Protocol Test Tool")
    if GTK:
        import gtk
        loop_exit = gtk.main_quit
        loop_run = gtk.main
    else:
        mainloop = gobject.MainLoop()
        loop_run = mainloop.run
Example #29
0
def run_server(error_cb,
               opts,
               mode,
               xpra_file,
               extra_args,
               desktop_display=None):
    try:
        cwd = os.getcwd()
    except:
        cwd = os.path.expanduser("~")
        warn("current working directory does not exist, using '%s'\n" % cwd)
    validate_encryption(opts)
    if opts.encoding == "help" or "help" in opts.encodings:
        return show_encoding_help(opts)

    from xpra.server.socket_util import parse_bind_ip, parse_bind_vsock, get_network_logger
    bind_tcp = parse_bind_ip(opts.bind_tcp)
    bind_udp = parse_bind_ip(opts.bind_udp)
    bind_ssl = parse_bind_ip(opts.bind_ssl)
    bind_ws = parse_bind_ip(opts.bind_ws)
    bind_wss = parse_bind_ip(opts.bind_wss)
    bind_rfb = parse_bind_ip(opts.bind_rfb, 5900)
    bind_vsock = parse_bind_vsock(opts.bind_vsock)

    assert mode in ("start", "start-desktop", "upgrade", "shadow", "proxy")
    starting = mode == "start"
    starting_desktop = mode == "start-desktop"
    upgrading = mode == "upgrade"
    shadowing = mode == "shadow"
    proxying = mode == "proxy"
    clobber = upgrading or opts.use_display
    start_vfb = not shadowing and not proxying and not clobber

    if upgrading or shadowing:
        #there should already be one running
        opts.pulseaudio = False

    #get the display name:
    if shadowing and len(extra_args) == 0:
        if WIN32 or OSX:
            #just a virtual name for the only display available:
            display_name = ":0"
        else:
            from xpra.scripts.main import guess_X11_display
            dotxpra = DotXpra(opts.socket_dir, opts.socket_dirs)
            display_name = guess_X11_display(dotxpra)
    elif upgrading and len(extra_args) == 0:
        display_name = guess_xpra_display(opts.socket_dir, opts.socket_dirs)
    else:
        if len(extra_args) > 1:
            error_cb(
                "too many extra arguments (%i): only expected a display number"
                % len(extra_args))
        if len(extra_args) == 1:
            display_name = extra_args[0]
            if not shadowing and not proxying and not opts.use_display:
                display_name_check(display_name)
        else:
            if proxying:
                #find a free display number:
                dotxpra = DotXpra(opts.socket_dir, opts.socket_dirs)
                all_displays = dotxpra.sockets()
                #ie: [("LIVE", ":100"), ("LIVE", ":200"), ...]
                displays = [v[1] for v in all_displays]
                display_name = None
                for x in range(1000, 20000):
                    v = ":%s" % x
                    if v not in displays:
                        display_name = v
                        break
                if not display_name:
                    error_cb(
                        "you must specify a free virtual display name to use with the proxy server"
                    )
            elif opts.use_display:
                #only use automatic guess for xpra displays and not X11 displays:
                display_name = guess_xpra_display(opts.socket_dir,
                                                  opts.socket_dirs)
            else:
                # We will try to find one automaticaly
                # Use the temporary magic value 'S' as marker:
                display_name = 'S' + str(os.getpid())

    if not shadowing and not proxying and not upgrading and opts.exit_with_children and not opts.start_child:
        error_cb(
            "--exit-with-children specified without any children to spawn; exiting immediately"
        )

    atexit.register(run_cleanups)

    # Generate the script text now, because os.getcwd() will
    # change if/when we daemonize:
    from xpra.server.server_util import xpra_runner_shell_script, write_runner_shell_scripts, write_pidfile, find_log_dir, create_input_devices
    script = xpra_runner_shell_script(xpra_file, cwd, opts.socket_dir)

    uid = int(opts.uid)
    gid = int(opts.gid)
    username = get_username_for_uid(uid)
    home = get_home_for_uid(uid)
    xauth_data = None
    if start_vfb:
        xauth_data = get_hex_uuid()
    ROOT = POSIX and getuid() == 0

    protected_fds = []
    protected_env = {}
    stdout = sys.stdout
    stderr = sys.stderr
    # Daemonize:
    if POSIX and opts.daemon:
        #daemonize will chdir to "/", so try to use an absolute path:
        if opts.password_file:
            opts.password_file = os.path.abspath(opts.password_file)
        from xpra.server.server_util import daemonize
        daemonize()

    displayfd = 0
    if POSIX and opts.displayfd:
        try:
            displayfd = int(opts.displayfd)
            if displayfd > 0:
                protected_fds.append(displayfd)
        except ValueError as e:
            stderr.write("Error: invalid displayfd '%s':\n" % opts.displayfd)
            stderr.write(" %s\n" % e)
            del e

    # if pam is present, try to create a new session:
    pam = None
    PAM_OPEN = POSIX and envbool("XPRA_PAM_OPEN", ROOT and uid != 0)
    if PAM_OPEN:
        try:
            from xpra.server.pam import pam_session  #@UnresolvedImport
        except ImportError as e:
            stderr.write("Error: failed to import pam module\n")
            stderr.write(" %s" % e)
            del e
            PAM_OPEN = False
    if PAM_OPEN:
        fdc = FDChangeCaptureContext()
        with fdc:
            pam = pam_session(username)
            env = {
                #"XDG_SEAT"               : "seat1",
                #"XDG_VTNR"               : "0",
                "XDG_SESSION_TYPE": "x11",
                #"XDG_SESSION_CLASS"      : "user",
                "XDG_SESSION_DESKTOP": "xpra",
            }
            #maybe we should just bail out instead?
            if pam.start():
                pam.set_env(env)
                items = {}
                if display_name.startswith(":"):
                    items["XDISPLAY"] = display_name
                if xauth_data:
                    items["XAUTHDATA"] = xauth_data
                pam.set_items(items)
                if pam.open():
                    #we can't close it, because we're not going to be root any more,
                    #but since we're the process leader for the session,
                    #terminating will also close the session
                    #add_cleanup(pam.close)
                    protected_env = pam.get_envlist()
                    os.environ.update(protected_env)
        #closing the pam fd causes the session to be closed,
        #and we don't want that!
        protected_fds += fdc.get_new_fds()

    #get XDG_RUNTIME_DIR from env options,
    #which may not be have updated os.environ yet when running as root with "--uid="
    xrd = os.path.abspath(parse_env(opts.env).get("XDG_RUNTIME_DIR", ""))
    if ROOT and (uid > 0 or gid > 0):
        #we're going to chown the directory if we create it,
        #ensure this cannot be abused, only use "safe" paths:
        if not any(x for x in ("/run/user/%i" % uid, "/tmp", "/var/tmp")
                   if xrd.startswith(x)):
            xrd = ""
        #these paths could cause problems if we were to create and chown them:
        if xrd.startswith("/tmp/.X11-unix") or xrd.startswith(
                "/tmp/.XIM-unix"):
            xrd = ""
    if not xrd:
        xrd = os.environ.get("XDG_RUNTIME_DIR")
    xrd = create_runtime_dir(xrd, uid, gid)
    if xrd:
        #this may override the value we get from pam
        #with the value supplied by the user:
        protected_env["XDG_RUNTIME_DIR"] = xrd

    if opts.pidfile:
        write_pidfile(opts.pidfile, uid, gid)

    if POSIX and not ROOT:
        # Write out a shell-script so that we can start our proxy in a clean
        # environment:
        write_runner_shell_scripts(script)

    if start_vfb or opts.daemon:
        #we will probably need a log dir
        #either for the vfb, or for our own log file
        log_dir = opts.log_dir or ""
        if not log_dir or log_dir.lower() == "auto":
            log_dir = find_log_dir(username, uid=uid, gid=gid)
            if not log_dir:
                raise InitException(
                    "cannot find or create a logging directory")
        #expose the log-dir as "XPRA_LOG_DIR",
        #this is used by Xdummy for the Xorg log file
        if "XPRA_LOG_DIR" not in os.environ:
            os.environ["XPRA_LOG_DIR"] = log_dir

        if opts.daemon:
            from xpra.server.server_util import select_log_file, open_log_file, redirect_std_to_log
            log_filename0 = select_log_file(log_dir, opts.log_file,
                                            display_name)
            logfd = open_log_file(log_filename0)
            if ROOT and (uid > 0 or gid > 0):
                try:
                    os.fchown(logfd, uid, gid)
                except:
                    pass
            stdout, stderr = redirect_std_to_log(logfd, *protected_fds)
            try:
                stderr.write("Entering daemon mode; " +
                             "any further errors will be reported to:\n" +
                             ("  %s\n" % log_filename0))
            except:
                #we tried our best, logging another error won't help
                pass

    #warn early about this:
    if (starting or starting_desktop) and desktop_display:
        print_DE_warnings(desktop_display, opts.pulseaudio, opts.notifications,
                          opts.dbus_launch)

    log = get_util_logger()
    netlog = get_network_logger()

    mdns_recs = {}
    sockets = []

    #SSL sockets:
    wrap_socket_fn = None
    need_ssl = False
    ssl_opt = opts.ssl.lower()
    if ssl_opt in TRUE_OPTIONS or bind_ssl or bind_wss:
        need_ssl = True
    if opts.bind_tcp or opts.bind_ws:
        if ssl_opt == "auto" and opts.ssl_cert:
            need_ssl = True
        elif ssl_opt == "tcp" and opts.bind_tcp:
            need_ssl = True
        elif ssl_opt == "www":
            need_ssl = True
    if need_ssl:
        from xpra.scripts.main import ssl_wrap_socket_fn
        try:
            wrap_socket_fn = ssl_wrap_socket_fn(opts, server_side=True)
            netlog("wrap_socket_fn=%s", wrap_socket_fn)
        except Exception as e:
            netlog("SSL error", exc_info=True)
            cpaths = csv("'%s'" % x for x in (opts.ssl_cert, opts.ssl_key)
                         if x)
            raise InitException(
                "cannot create SSL socket, check your certificate paths (%s): %s"
                % (cpaths, e))

    from xpra.server.socket_util import setup_tcp_socket, setup_udp_socket, setup_vsock_socket, setup_local_sockets, has_dual_stack
    min_port = int(opts.min_port)

    def hosts(host_str):
        if host_str == "*":
            if has_dual_stack():
                #IPv6 will also listen for IPv4:
                return ["::"]
            #no dual stack, so we have to listen on both IPv4 and IPv6 explicitly:
            return ["0.0.0.0", "::"]
        return [host_str]

    def add_mdns(socktype, host_str, port):
        recs = mdns_recs.setdefault(socktype.lower(), [])
        for host in hosts(host_str):
            rec = (host, port)
            if rec not in recs:
                recs.append(rec)

    def add_tcp_socket(socktype, host_str, iport):
        if iport < min_port:
            error_cb("invalid %s port number %i (minimum value is %i)" %
                     (socktype, iport, min_port))
        for host in hosts(host_str):
            socket = setup_tcp_socket(host, iport, socktype)
            sockets.append(socket)
            add_mdns(socktype, host, iport)

    def add_udp_socket(socktype, host_str, iport):
        if iport < min_port:
            error_cb("invalid %s port number %i (minimum value is %i)" %
                     (socktype, iport, min_port))
        for host in hosts(host_str):
            socket = setup_udp_socket(host, iport, socktype)
            sockets.append(socket)
            add_mdns(socktype, host, iport)

    # Initialize the TCP sockets before the display,
    # That way, errors won't make us kill the Xvfb
    # (which may not be ours to kill at that point)
    netlog("setting up SSL sockets: %s", csv(bind_ssl))
    for host, iport in bind_ssl:
        add_tcp_socket("ssl", host, iport)
    netlog("setting up https / wss (secure websockets): %s", csv(bind_wss))
    for host, iport in bind_wss:
        add_tcp_socket("wss", host, iport)
    tcp_ssl = ssl_opt in TRUE_OPTIONS or (ssl_opt == "auto" and opts.ssl_cert)
    netlog("setting up TCP sockets: %s", csv(bind_tcp))
    for host, iport in bind_tcp:
        add_tcp_socket("tcp", host, iport)
        if tcp_ssl:
            add_mdns("ssl", host, iport)
    netlog("setting up UDP sockets: %s", csv(bind_udp))
    for host, iport in bind_udp:
        add_udp_socket("udp", host, iport)
    netlog("setting up http / ws (websockets): %s", csv(bind_ws))
    for host, iport in bind_ws:
        add_tcp_socket("ws", host, iport)
        if tcp_ssl:
            add_mdns("wss", host, iport)
    if bind_rfb and (proxying or starting):
        log.warn("Warning: bind-rfb sockets cannot be used with '%s' mode" %
                 mode)
    else:
        netlog("setting up rfb sockets: %s", csv(bind_rfb))
        for host, iport in bind_rfb:
            add_tcp_socket("rfb", host, iport)
    netlog("setting up vsock sockets: %s", csv(bind_vsock))
    for cid, iport in bind_vsock:
        socket = setup_vsock_socket(cid, iport)
        sockets.append(socket)
        #add_mdns("vsock", str(cid), iport)

    # systemd socket activation:
    try:
        from xpra.platform.xposix.sd_listen import get_sd_listen_sockets
    except ImportError:
        pass
    else:
        sd_sockets = get_sd_listen_sockets()
        netlog("systemd sockets: %s", sd_sockets)
        for stype, socket, addr in sd_sockets:
            sockets.append((stype, socket, addr))
            netlog("%s : %s", (stype, [addr]), socket)
            if stype == "tcp":
                host, iport = addr
                add_mdns("tcp", host, iport)

    sanitize_env()
    if POSIX:
        if xrd:
            os.environ["XDG_RUNTIME_DIR"] = xrd
        os.environ["XDG_SESSION_TYPE"] = "x11"
        if not starting_desktop:
            os.environ["XDG_CURRENT_DESKTOP"] = opts.wm_name
        configure_imsettings_env(opts.input_method)
    if display_name[0] != 'S':
        os.environ["DISPLAY"] = display_name
        os.environ["CKCON_X11_DISPLAY"] = display_name
    else:
        try:
            del os.environ["DISPLAY"]
        except:
            pass
    os.environ.update(protected_env)
    log("env=%s", os.environ)

    UINPUT_UUID_LEN = 12
    UINPUT_UUID_MIN_LEN = 12
    UINPUT_UUID_MAX_LEN = 32
    # Start the Xvfb server first to get the display_name if needed
    odisplay_name = display_name
    xvfb = None
    xvfb_pid = None
    uinput_uuid = None
    if start_vfb:
        assert not proxying and xauth_data
        pixel_depth = validate_pixel_depth(opts.pixel_depth)
        from xpra.x11.vfb_util import start_Xvfb, check_xvfb_process
        from xpra.server.server_util import has_uinput
        uinput_uuid = None
        if has_uinput() and opts.input_devices.lower() in (
                "uinput", "auto") and not shadowing:
            from xpra.os_util import get_rand_chars
            uinput_uuid = get_rand_chars(UINPUT_UUID_LEN)
        xvfb, display_name, cleanups = start_Xvfb(opts.xvfb, pixel_depth,
                                                  display_name, cwd, uid, gid,
                                                  username, xauth_data,
                                                  uinput_uuid)
        for f in cleanups:
            add_cleanup(f)
        xvfb_pid = xvfb.pid
        #always update as we may now have the "real" display name:
        os.environ["DISPLAY"] = display_name
        os.environ["CKCON_X11_DISPLAY"] = display_name
        os.environ.update(protected_env)
        if display_name != odisplay_name and pam:
            pam.set_items({"XDISPLAY": display_name})

        def check_xvfb():
            return check_xvfb_process(xvfb)
    else:

        def check_xvfb():
            return True

    if POSIX and not OSX and displayfd > 0:
        from xpra.platform.displayfd import write_displayfd
        try:
            display = display_name[1:]
            log("writing display='%s' to displayfd=%i", display, displayfd)
            assert write_displayfd(displayfd, display), "timeout"
        except Exception as e:
            log.error("write_displayfd failed", exc_info=True)
            log.error("Error: failed to write '%s' to fd=%s", display_name,
                      displayfd)
            log.error(" %s", str(e) or type(e))
            del e
        try:
            os.close(displayfd)
        except:
            pass

    if not proxying:

        def close_display():
            close_gtk_display()
            kill_xvfb(xvfb_pid)

        add_cleanup(close_display)
    else:
        close_display = None

    if opts.daemon:

        def noerr(fn, *args):
            try:
                fn(*args)
            except:
                pass

        log_filename1 = select_log_file(log_dir, opts.log_file, display_name)
        if log_filename0 != log_filename1:
            # we now have the correct log filename, so use it:
            os.rename(log_filename0, log_filename1)
            if odisplay_name != display_name:
                #this may be used by scripts, let's try not to change it:
                noerr(stderr.write, "Actual display used: %s\n" % display_name)
            noerr(stderr.write,
                  "Actual log file name is now: %s\n" % log_filename1)
            noerr(stderr.flush)
        noerr(stdout.close)
        noerr(stderr.close)
    #we should not be using stdout or stderr from this point:
    del stdout
    del stderr

    if not check_xvfb():
        #xvfb problem: exit now
        return 1

    #create devices for vfb if needed:
    devices = {}
    if not start_vfb and not proxying and not shadowing:
        #try to find the existing uinput uuid:
        #use a subprocess to avoid polluting our current process
        #with X11 connections before we get a chance to change uid
        cmd = ["xprop", "-display", display_name, "-root", "_XPRA_UINPUT_ID"]
        try:
            code, out, err = get_status_output(cmd)
        except Exception as e:
            log("failed to get existing uinput id: %s", e)
            del e
        else:
            log("Popen(%s)=%s", cmd, (code, out, err))
            if code == 0 and out.find("=") > 0:
                uinput_uuid = out.split("=", 1)[1]
                log("raw uinput uuid=%s", uinput_uuid)
                uinput_uuid = strtobytes(uinput_uuid.strip('\n\r"\\ '))
                if uinput_uuid:
                    if len(uinput_uuid) > UINPUT_UUID_MAX_LEN or len(
                            uinput_uuid) < UINPUT_UUID_MIN_LEN:
                        log.warn("Warning: ignoring invalid uinput id:")
                        log.warn(" '%s'", uinput_uuid)
                        uinput_uuid = None
                    else:
                        log.info("retrieved existing uinput id: %s",
                                 bytestostr(uinput_uuid))
    if uinput_uuid:
        devices = create_input_devices(uinput_uuid, uid)

    if ROOT and (uid != 0 or gid != 0):
        log("root: switching to uid=%i, gid=%i", uid, gid)
        setuidgid(uid, gid)
        os.environ.update({
            "HOME": home,
            "USER": username,
            "LOGNAME": username,
        })
        shell = get_shell_for_uid(uid)
        if shell:
            os.environ["SHELL"] = shell
        #now we've changed uid, it is safe to honour all the env updates:
        configure_env(opts.env)
        os.environ.update(protected_env)

    if opts.chdir:
        os.chdir(opts.chdir)

    display = None
    if not proxying:
        no_gtk()
        if POSIX and not OSX and (starting or starting_desktop or shadowing):
            #check that we can access the X11 display:
            from xpra.x11.vfb_util import verify_display_ready
            if not verify_display_ready(xvfb, display_name, shadowing):
                return 1
            if not PYTHON3:
                from xpra.x11.gtk2.gdk_display_util import verify_gdk_display  #@UnusedImport
            else:
                from xpra.x11.gtk3.gdk_display_util import verify_gdk_display  #@Reimport
            display = verify_gdk_display(display_name)
            if not display:
                return 1
        #on win32, this ensures that we get the correct screen size to shadow:
        from xpra.platform.gui import init as gui_init
        gui_init()

    #setup unix domain socket:
    if not opts.socket_dir and not opts.socket_dirs:
        #we always need at least one valid socket dir
        from xpra.platform.paths import get_socket_dirs
        opts.socket_dirs = get_socket_dirs()
    local_sockets = setup_local_sockets(opts.bind, opts.socket_dir,
                                        opts.socket_dirs, display_name,
                                        clobber, opts.mmap_group,
                                        opts.socket_permissions, username, uid,
                                        gid)
    netlog("setting up local sockets: %s", local_sockets)
    for rec, cleanup_socket in local_sockets:
        socktype, socket, sockpath = rec
        #ie: ("unix-domain", sock, sockpath), cleanup_socket
        sockets.append(rec)
        netlog("%s %s : %s", socktype, sockpath, socket)
        add_cleanup(cleanup_socket)
        if opts.mdns:
            ssh_port = get_ssh_port()
            netlog("ssh %s:%s : %s", "", ssh_port, socket)
            if ssh_port:
                add_mdns("ssh", "", ssh_port)

    kill_dbus = None
    if shadowing:
        from xpra.platform.shadow_server import ShadowServer
        app = ShadowServer()
    elif proxying:
        from xpra.server.proxy.proxy_server import ProxyServer
        app = ProxyServer()
    else:
        if not check_xvfb():
            return 1
        assert starting or starting_desktop or upgrading
        from xpra.x11.gtk2.gdk_display_source import init_gdk_display_source
        init_gdk_display_source()
        #(now we can access the X11 server)

        #make sure the pid we save is the real one:
        if not check_xvfb():
            return 1
        if xvfb_pid is not None:
            #save the new pid (we should have one):
            save_xvfb_pid(xvfb_pid)

        if POSIX:
            save_uinput_id(uinput_uuid or "")
            dbus_pid = -1
            dbus_env = {}
            if clobber:
                #get the saved pids and env
                dbus_pid = get_dbus_pid()
                dbus_env = get_dbus_env()
                log("retrieved existing dbus attributes")
            else:
                assert starting or starting_desktop
                if xvfb_pid is not None:
                    #save the new pid (we should have one):
                    save_xvfb_pid(xvfb_pid)
                bus_address = protected_env.get("DBUS_SESSION_BUS_ADDRESS")
                log("dbus_launch=%s, current DBUS_SESSION_BUS_ADDRESS=%s",
                    opts.dbus_launch, bus_address)
                if opts.dbus_launch and not bus_address:
                    #start a dbus server:
                    def kill_dbus():
                        log("kill_dbus: dbus_pid=%s" % dbus_pid)
                        if dbus_pid <= 0:
                            return
                        try:
                            os.kill(dbus_pid, signal.SIGINT)
                        except Exception as e:
                            log.warn(
                                "Warning: error trying to stop dbus with pid %i:",
                                dbus_pid)
                            log.warn(" %s", e)

                    add_cleanup(kill_dbus)
                    #this also updates os.environ with the dbus attributes:
                    dbus_pid, dbus_env = start_dbus(opts.dbus_launch)
                    if dbus_pid > 0:
                        save_dbus_pid(dbus_pid)
                    if dbus_env:
                        save_dbus_env(dbus_env)
            log("dbus attributes: pid=%s, env=%s", dbus_pid, dbus_env)
            if dbus_env:
                os.environ.update(dbus_env)
                os.environ.update(protected_env)

        log("env=%s", os.environ)
        try:
            # This import is delayed because the module depends on gtk:
            from xpra.x11.bindings.window_bindings import X11WindowBindings
            X11Window = X11WindowBindings()
            if (starting or
                    starting_desktop) and not clobber and opts.resize_display:
                from xpra.x11.vfb_util import set_initial_resolution
                set_initial_resolution(starting_desktop)
        except ImportError as e:
            log.error(
                "Failed to load Xpra server components, check your installation: %s"
                % e)
            return 1
        if starting or upgrading:
            if not X11Window.displayHasXComposite():
                log.error(
                    "Xpra 'start' subcommand runs as a compositing manager")
                log.error(
                    " it cannot use a display which lacks the XComposite extension!"
                )
                return 1
            if starting:
                #check for an existing window manager:
                from xpra.x11.gtk2.wm import wm_check
                if not wm_check(display, opts.wm_name, upgrading):
                    return 1
            log("XShape=%s", X11Window.displayHasXShape())
            from xpra.x11.server import XpraServer
            app = XpraServer(clobber)
        else:
            assert starting_desktop
            from xpra.x11.desktop_server import XpraDesktopServer
            app = XpraDesktopServer()
        app.init_virtual_devices(devices)

    #publish mdns records:
    if opts.mdns:
        from xpra.platform.info import get_username
        from xpra.server.socket_util import mdns_publish
        mdns_info = {
            "display": display_name,
            "username": get_username(),
            "uuid": strtobytes(app.uuid),
            "platform": sys.platform,
            "type": app.session_type,
        }
        if opts.session_name:
            mdns_info["session"] = opts.session_name
        for mode, listen_on in mdns_recs.items():
            mdns_publish(display_name, mode, listen_on, mdns_info)

    try:
        app._ssl_wrap_socket = wrap_socket_fn
        app.original_desktop_display = desktop_display
        app.exec_cwd = opts.chdir or cwd
        app.init(opts)
        app.init_components(opts)
    except InitException as e:
        log.error("xpra server initialization error:")
        log.error(" %s", e)
        return 1
    except Exception as e:
        log.error("Error: cannot start the %s server",
                  app.session_type,
                  exc_info=True)
        log.error(str(e))
        log.info("")
        return 1

    #honour start child, html webserver, and setup child reaper
    if not proxying and not upgrading:
        if opts.exit_with_children:
            assert opts.start_child, "exit-with-children was specified but start-child is missing!"
        app.start_commands = opts.start
        app.start_child_commands = opts.start_child
        app.start_after_connect = opts.start_after_connect
        app.start_child_after_connect = opts.start_child_after_connect
        app.start_on_connect = opts.start_on_connect
        app.start_child_on_connect = opts.start_child_on_connect
        app.exec_start_commands()
    del opts

    log("%s(%s)", app.init_sockets, sockets)
    app.init_sockets(sockets)
    log("%s(%s)", app.init_when_ready, _when_ready)
    app.init_when_ready(_when_ready)

    try:
        #from here on, we own the vfb, even if we inherited one:
        if (starting or starting_desktop or upgrading) and clobber:
            #and it will be killed if exit cleanly:
            xvfb_pid = get_xvfb_pid()

        log("running %s", app.run)
        r = app.run()
        log("%s()=%s", app.run, r)
    except KeyboardInterrupt:
        log.info("stopping on KeyboardInterrupt")
        r = 0
    except Exception:
        log.error("server error", exc_info=True)
        r = -128
    if r > 0:
        # Upgrading/exiting, so leave X and dbus servers running
        if close_display:
            _cleanups.remove(close_display)
        if kill_dbus:
            _cleanups.remove(kill_dbus)
        from xpra.server.server_core import ServerCore
        if r == ServerCore.EXITING_CODE:
            log.info("exiting: not cleaning up Xvfb")
        else:
            log.info("upgrading: not cleaning up Xvfb")
        log("cleanups=%s", _cleanups)
        r = 0
    return r
Example #30
0
def run_server(error_cb,
               opts,
               mode,
               xpra_file,
               extra_args,
               desktop_display=None):
    try:
        cwd = os.getcwd()
    except:
        cwd = os.path.expanduser("~")
        warn("current working directory does not exist, using '%s'\n" % cwd)
    validate_encryption(opts)
    if opts.encoding == "help" or "help" in opts.encodings:
        return show_encoding_help(opts)

    from xpra.server.socket_util import parse_bind_tcp, parse_bind_vsock
    bind_tcp = parse_bind_tcp(opts.bind_tcp)
    bind_ssl = parse_bind_tcp(opts.bind_ssl)
    bind_vsock = parse_bind_vsock(opts.bind_vsock)

    assert mode in ("start", "start-desktop", "upgrade", "shadow", "proxy")
    starting = mode == "start"
    starting_desktop = mode == "start-desktop"
    upgrading = mode == "upgrade"
    shadowing = mode == "shadow"
    proxying = mode == "proxy"
    clobber = upgrading or opts.use_display
    start_vfb = not shadowing and not proxying and not clobber

    if upgrading or shadowing:
        #there should already be one running
        opts.pulseaudio = False

    #get the display name:
    if shadowing and len(extra_args) == 0:
        if WIN32 or OSX:
            #just a virtual name for the only display available:
            display_name = ":0"
        else:
            from xpra.scripts.main import guess_X11_display
            dotxpra = DotXpra(opts.socket_dir, opts.socket_dirs)
            display_name = guess_X11_display(dotxpra)
    elif upgrading and len(extra_args) == 0:
        display_name = guess_xpra_display(opts.socket_dir, opts.socket_dirs)
    else:
        if len(extra_args) > 1:
            error_cb(
                "too many extra arguments (%i): only expected a display number"
                % len(extra_args))
        if len(extra_args) == 1:
            display_name = extra_args[0]
            if not shadowing and not proxying and not opts.use_display:
                display_name_check(display_name)
        else:
            if proxying:
                #find a free display number:
                dotxpra = DotXpra(opts.socket_dir, opts.socket_dirs)
                all_displays = dotxpra.sockets()
                #ie: [("LIVE", ":100"), ("LIVE", ":200"), ...]
                displays = [v[1] for v in all_displays]
                display_name = None
                for x in range(1000, 20000):
                    v = ":%s" % x
                    if v not in displays:
                        display_name = v
                        break
                if not display_name:
                    error_cb(
                        "you must specify a free virtual display name to use with the proxy server"
                    )
            elif opts.use_display:
                #only use automatic guess for xpra displays and not X11 displays:
                display_name = guess_xpra_display(opts.socket_dir,
                                                  opts.socket_dirs)
            else:
                # We will try to find one automaticaly
                # Use the temporary magic value 'S' as marker:
                display_name = 'S' + str(os.getpid())

    if not shadowing and not proxying and not upgrading and opts.exit_with_children and not opts.start_child:
        error_cb(
            "--exit-with-children specified without any children to spawn; exiting immediately"
        )

    atexit.register(run_cleanups)

    # Generate the script text now, because os.getcwd() will
    # change if/when we daemonize:
    from xpra.server.server_util import xpra_runner_shell_script, write_runner_shell_scripts, write_pidfile, find_log_dir
    script = xpra_runner_shell_script(xpra_file, cwd, opts.socket_dir)

    uid = int(opts.uid)
    gid = int(opts.gid)
    username = get_username_for_uid(uid)
    home = get_home_for_uid(uid)
    xauth_data = None
    if start_vfb:
        xauth_data = get_hex_uuid()
    ROOT = POSIX and getuid() == 0

    stdout = sys.stdout
    stderr = sys.stderr
    # Daemonize:
    if POSIX and opts.daemon:
        #daemonize will chdir to "/", so try to use an absolute path:
        if opts.password_file:
            opts.password_file = os.path.abspath(opts.password_file)
        from xpra.server.server_util import daemonize
        daemonize()

    # if pam is present, try to create a new session:
    pam = None
    protected_fds = []
    protected_env = {}
    PAM_OPEN = POSIX and envbool("XPRA_PAM_OPEN", ROOT and uid != 0)
    if PAM_OPEN:
        try:
            from xpra.server.pam import pam_session  #@UnresolvedImport
        except ImportError as e:
            stderr.write("Error: failed to import pam module\n")
            stderr.write(" %s" % e)
            PAM_OPEN = False
    if PAM_OPEN:
        fdc = FDChangeCaptureContext()
        with fdc:
            pam = pam_session(username)
            env = {
                #"XDG_SEAT"               : "seat1",
                #"XDG_VTNR"               : "0",
                "XDG_SESSION_TYPE": "x11",
                #"XDG_SESSION_CLASS"      : "user",
                "XDG_SESSION_DESKTOP": "xpra",
            }
            #maybe we should just bail out instead?
            if pam.start():
                pam.set_env(env)
                items = {}
                if display_name.startswith(":"):
                    items["XDISPLAY"] = display_name
                if xauth_data:
                    items["XAUTHDATA"] = xauth_data
                pam.set_items(items)
                if pam.open():
                    #we can't close it, because we're not going to be root any more,
                    #but since we're the process leader for the session,
                    #terminating will also close the session
                    #add_cleanup(pam.close)
                    protected_env = pam.get_envlist()
                    os.environ.update(protected_env)
        #closing the pam fd causes the session to be closed,
        #and we don't want that!
        protected_fds = fdc.get_new_fds()

    xrd = create_runtime_dir(uid, gid)

    if opts.pidfile:
        write_pidfile(opts.pidfile, uid, gid)

    if POSIX and not ROOT:
        # Write out a shell-script so that we can start our proxy in a clean
        # environment:
        write_runner_shell_scripts(script)

    if start_vfb or opts.daemon:
        #we will probably need a log dir
        #either for the vfb, or for our own log file
        log_dir = opts.log_dir or ""
        if not log_dir or log_dir.lower() == "auto":
            log_dir = find_log_dir(username, uid=uid, gid=gid)
            if not log_dir:
                raise InitException(
                    "cannot find or create a logging directory")
        #expose the log-dir as "XPRA_LOG_DIR",
        #this is used by Xdummy for the Xorg log file
        if "XPRA_LOG_DIR" not in os.environ:
            os.environ["XPRA_LOG_DIR"] = log_dir

        if opts.daemon:
            from xpra.server.server_util import select_log_file, open_log_file, redirect_std_to_log
            log_filename0 = select_log_file(log_dir, opts.log_file,
                                            display_name)
            logfd = open_log_file(log_filename0)
            if ROOT and (uid > 0 or gid > 0):
                try:
                    os.fchown(logfd, uid, gid)
                except:
                    pass
            stdout, stderr = redirect_std_to_log(logfd, *protected_fds)
            stderr.write("Entering daemon mode; " +
                         "any further errors will be reported to:\n" +
                         ("  %s\n" % log_filename0))

    #warn early about this:
    if (starting or starting_desktop) and desktop_display:
        print_DE_warnings(desktop_display, opts.pulseaudio, opts.notifications,
                          opts.dbus_launch)

    from xpra.log import Logger
    log = Logger("server")
    netlog = Logger("network")

    mdns_recs = []
    sockets = []

    #SSL sockets:
    wrap_socket_fn = None
    need_ssl = False
    ssl_opt = opts.ssl.lower()
    if ssl_opt in TRUE_OPTIONS or bind_ssl:
        need_ssl = True
    if opts.bind_tcp:
        if ssl_opt == "auto" and opts.ssl_cert:
            need_ssl = True
        elif ssl_opt == "tcp":
            need_ssl = True
        elif ssl_opt == "www":
            need_ssl = True
    if need_ssl:
        from xpra.scripts.main import ssl_wrap_socket_fn
        try:
            wrap_socket_fn = ssl_wrap_socket_fn(opts, server_side=True)
            netlog("wrap_socket_fn=%s", wrap_socket_fn)
        except Exception as e:
            netlog("SSL error", exc_info=True)
            cpaths = csv("'%s'" % x for x in (opts.ssl_cert, opts.ssl_key)
                         if x)
            raise InitException(
                "cannot create SSL socket, check your certificate paths (%s): %s"
                % (cpaths, e))

    from xpra.server.socket_util import setup_tcp_socket, setup_vsock_socket, setup_local_sockets
    min_port = int(opts.min_port)
    netlog("setting up SSL sockets: %s", bind_ssl)
    for host, iport in bind_ssl:
        if iport < min_port:
            error_cb("invalid %s port number %i (minimum value is %i)" %
                     (socktype, iport, min_port))
        _, tcp_socket, host_port = setup_tcp_socket(host, iport, "SSL")
        socket = ("SSL", wrap_socket_fn(tcp_socket), host_port)
        sockets.append(socket)
        rec = "ssl", [(host, iport)]
        netlog("%s : %s", rec, socket)
        mdns_recs.append(rec)

    # Initialize the TCP sockets before the display,
    # That way, errors won't make us kill the Xvfb
    # (which may not be ours to kill at that point)
    tcp_ssl = ssl_opt in TRUE_OPTIONS or (ssl_opt == "auto" and opts.ssl_cert)

    def add_tcp_mdns_rec(host, iport):
        rec = "tcp", [(host, iport)]
        netlog("%s : %s", rec, socket)
        mdns_recs.append(rec)
        if tcp_ssl:
            #SSL is also available on this TCP socket:
            rec = "ssl", [(host, iport)]
            netlog("%s : %s", rec, socket)
            mdns_recs.append(rec)

    netlog("setting up TCP sockets: %s", bind_tcp)
    for host, iport in bind_tcp:
        if iport < min_port:
            error_cb("invalid %s port number %i (minimum value is %i)" %
                     (socktype, iport, min_port))
        socket = setup_tcp_socket(host, iport)
        sockets.append(socket)
        add_tcp_mdns_rec(host, iport)

    # VSOCK:
    netlog("setting up vsock sockets: %s", bind_vsock)
    for cid, iport in bind_vsock:
        socket = setup_vsock_socket(cid, iport)
        sockets.append(socket)
        rec = "vsock", [("", iport)]
        netlog("%s : %s", rec, socket)
        mdns_recs.append(rec)

    # systemd socket activation:
    try:
        from xpra.server.sd_listen import get_sd_listen_sockets
    except ImportError:
        pass
    else:
        sd_sockets = get_sd_listen_sockets()
        netlog("systemd sockets: %s", sd_sockets)
        for stype, socket, addr in sd_sockets:
            sockets.append((stype, socket, addr))
            netlog("%s : %s", (stype, [addr]), socket)
            if stype == "tcp":
                host, iport = addr
                add_tcp_mdns_rec(host, iport)

    sanitize_env()
    if POSIX:
        if xrd:
            os.environ["XDG_RUNTIME_DIR"] = xrd
        os.environ["XDG_SESSION_TYPE"] = "x11"
        if not starting_desktop:
            os.environ["XDG_CURRENT_DESKTOP"] = opts.wm_name
        configure_imsettings_env(opts.input_method)
    if display_name[0] != 'S':
        os.environ["DISPLAY"] = display_name
        os.environ["CKCON_X11_DISPLAY"] = display_name
    else:
        try:
            del os.environ["DISPLAY"]
        except:
            pass
    os.environ.update(protected_env)
    log("env=%s", os.environ)

    # Start the Xvfb server first to get the display_name if needed
    from xpra.server.vfb_util import start_Xvfb, check_xvfb_process, verify_display_ready, verify_gdk_display, set_initial_resolution
    odisplay_name = display_name
    xvfb = None
    xvfb_pid = None
    if start_vfb:
        assert not proxying and xauth_data
        pixel_depth = validate_pixel_depth(opts.pixel_depth)
        xvfb, display_name = start_Xvfb(opts.xvfb, pixel_depth, display_name,
                                        cwd, uid, gid, xauth_data)
        xvfb_pid = xvfb.pid
        #always update as we may now have the "real" display name:
        os.environ["DISPLAY"] = display_name
        os.environ["CKCON_X11_DISPLAY"] = display_name
        os.environ.update(protected_env)
        if display_name != odisplay_name and pam:
            pam.set_items({"XDISPLAY": display_name})

    close_display = None
    if not proxying:

        def close_display():
            # Close our display(s) first, so the server dying won't kill us.
            # (if gtk has been loaded)
            gtk_mod = sys.modules.get("gtk")
            if gtk_mod:
                for d in gtk_mod.gdk.display_manager_get().list_displays():
                    d.close()
            if xvfb_pid:
                log.info("killing xvfb with pid %s", xvfb_pid)
                try:
                    os.kill(xvfb_pid, signal.SIGTERM)
                except OSError as e:
                    log.info("failed to kill xvfb process with pid %s:",
                             xvfb_pid)
                    log.info(" %s", e)

        add_cleanup(close_display)

    if opts.daemon:

        def noerr(fn, *args):
            try:
                fn(*args)
            except:
                pass

        log_filename1 = select_log_file(log_dir, opts.log_file, display_name)
        if log_filename0 != log_filename1:
            # we now have the correct log filename, so use it:
            os.rename(log_filename0, log_filename1)
            if odisplay_name != display_name:
                #this may be used by scripts, let's try not to change it:
                noerr(stderr.write, "Actual display used: %s\n" % display_name)
            noerr(stderr.write,
                  "Actual log file name is now: %s\n" % log_filename1)
            noerr(stderr.flush)
        noerr(stdout.close)
        noerr(stderr.close)
    #we should not be using stdout or stderr from this point:
    del stdout
    del stderr

    if not check_xvfb_process(xvfb):
        #xvfb problem: exit now
        return 1

    if ROOT and (uid != 0 or gid != 0):
        log("root: switching to uid=%i, gid=%i", uid, gid)
        setuidgid(uid, gid)
        os.environ.update({
            "HOME": home,
            "USER": username,
            "LOGNAME": username,
        })
        shell = get_shell_for_uid(uid)
        if shell:
            os.environ["SHELL"] = shell
        os.environ.update(protected_env)

    if opts.chdir:
        os.chdir(opts.chdir)

    display = None
    if not proxying:
        no_gtk()
        if POSIX and (starting or starting_desktop or shadowing):
            #check that we can access the X11 display:
            if not verify_display_ready(xvfb, display_name, shadowing):
                return 1
            display = verify_gdk_display(display_name)
            if not display:
                return 1
            import gtk  #@Reimport
            assert gtk
        #on win32, this ensures that we get the correct screen size to shadow:
        from xpra.platform.gui import init as gui_init
        gui_init()

    #setup unix domain socket:
    if not opts.socket_dir and not opts.socket_dirs:
        #we always need at least one valid socket dir
        from xpra.platform.paths import get_socket_dirs
        opts.socket_dirs = get_socket_dirs()
    local_sockets = setup_local_sockets(opts.bind, opts.socket_dir,
                                        opts.socket_dirs, display_name,
                                        clobber, opts.mmap_group,
                                        opts.socket_permissions, username, uid,
                                        gid)
    netlog("setting up local sockets: %s", local_sockets)
    for rec, cleanup_socket in local_sockets:
        socktype, socket, sockpath = rec
        #ie: ("unix-domain", sock, sockpath), cleanup_socket
        sockets.append(rec)
        netlog("%s : %s", (socktype, [sockpath]), socket)
        add_cleanup(cleanup_socket)
        if opts.mdns:
            ssh_port = get_ssh_port()
            rec = "ssh", [("", ssh_port)]
            netlog("%s : %s", rec, socket)
            if ssh_port and rec not in mdns_recs:
                mdns_recs.append(rec)

    kill_dbus = None
    if shadowing:
        from xpra.platform.shadow_server import ShadowServer
        app = ShadowServer()
        server_type_info = "shadow"
    elif proxying:
        from xpra.server.proxy.proxy_server import ProxyServer
        app = ProxyServer()
        server_type_info = "proxy"
    else:
        assert starting or starting_desktop or upgrading
        from xpra.x11.gtk2.gdk_display_source import init_gdk_display_source
        init_gdk_display_source()
        #(now we can access the X11 server)

        if xvfb_pid is not None:
            #save the new pid (we should have one):
            save_xvfb_pid(xvfb_pid)

        if POSIX:
            dbus_pid = -1
            dbus_env = {}
            if clobber:
                #get the saved pids and env
                dbus_pid = get_dbus_pid()
                dbus_env = get_dbus_env()
                log("retrieved existing dbus attributes")
            else:
                assert starting or starting_desktop
                if xvfb_pid is not None:
                    #save the new pid (we should have one):
                    save_xvfb_pid(xvfb_pid)
                bus_address = protected_env.get("DBUS_SESSION_BUS_ADDRESS")
                log("dbus_launch=%s, current DBUS_SESSION_BUS_ADDRESS=%s",
                    opts.dbus_launch, bus_address)
                if opts.dbus_launch and not bus_address:
                    #start a dbus server:
                    def kill_dbus():
                        log("kill_dbus: dbus_pid=%s" % dbus_pid)
                        if dbus_pid <= 0:
                            return
                        try:
                            os.kill(dbus_pid, signal.SIGINT)
                        except Exception as e:
                            log.warn(
                                "Warning: error trying to stop dbus with pid %i:",
                                dbus_pid)
                            log.warn(" %s", e)

                    add_cleanup(kill_dbus)
                    #this also updates os.environ with the dbus attributes:
                    dbus_pid, dbus_env = start_dbus(opts.dbus_launch)
                    if dbus_pid > 0:
                        save_dbus_pid(dbus_pid)
                    if dbus_env:
                        save_dbus_env(dbus_env)
            log("dbus attributes: pid=%s, env=%s", dbus_pid, dbus_env)
            if dbus_env:
                os.environ.update(dbus_env)
                os.environ.update(protected_env)

        log("env=%s", os.environ)
        try:
            # This import is delayed because the module depends on gtk:
            from xpra.x11.bindings.window_bindings import X11WindowBindings
            X11Window = X11WindowBindings()
            if (starting or
                    starting_desktop) and not clobber and opts.resize_display:
                set_initial_resolution(starting_desktop)
        except ImportError as e:
            log.error(
                "Failed to load Xpra server components, check your installation: %s"
                % e)
            return 1
        if starting or upgrading:
            if not X11Window.displayHasXComposite():
                log.error(
                    "Xpra 'start' subcommand runs as a compositing manager")
                log.error(
                    " it cannot use a display which lacks the XComposite extension!"
                )
                return 1
            if starting:
                #check for an existing window manager:
                from xpra.x11.gtk2.wm import wm_check
                if not wm_check(display, opts.wm_name, upgrading):
                    return 1
            log("XShape=%s", X11Window.displayHasXShape())
            from xpra.x11.server import XpraServer
            app = XpraServer(clobber)
            server_type_info = "xpra"
        else:
            assert starting_desktop
            from xpra.x11.desktop_server import XpraDesktopServer
            app = XpraDesktopServer()
            server_type_info = "xpra desktop"

    #publish mdns records:
    if opts.mdns:
        from xpra.os_util import strtobytes
        from xpra.platform.info import get_username
        from xpra.server.socket_util import mdns_publish
        mdns_info = {
            "display": display_name,
            "username": get_username(),
            "uuid": strtobytes(app.uuid),
            "platform": sys.platform,
            "type": {
                "xpra": "seamless",
                "xpra desktop": "desktop"
            }.get(server_type_info, server_type_info),
        }
        if opts.session_name:
            mdns_info["session"] = opts.session_name
        for mode, listen_on in mdns_recs:
            mdns_publish(display_name, mode, listen_on, mdns_info)

    try:
        app._ssl_wrap_socket = wrap_socket_fn
        app.original_desktop_display = desktop_display
        app.exec_cwd = opts.chdir or cwd
        app.init(opts)
        app.init_components(opts)
    except InitException as e:
        log.error("xpra server initialization error:")
        log.error(" %s", e)
        return 1
    except Exception as e:
        log.error("Error: cannot start the %s server",
                  server_type_info,
                  exc_info=True)
        log.error(str(e))
        log.info("")
        return 1

    #honour start child, html webserver, and setup child reaper
    if not proxying and not upgrading:
        if opts.exit_with_children:
            assert opts.start_child, "exit-with-children was specified but start-child is missing!"
        app.start_commands = opts.start
        app.start_child_commands = opts.start_child
        app.start_after_connect = opts.start_after_connect
        app.start_child_after_connect = opts.start_child_after_connect
        app.start_on_connect = opts.start_on_connect
        app.start_child_on_connect = opts.start_child_on_connect
        app.exec_start_commands()
    del opts

    log("%s(%s)", app.init_sockets, sockets)
    app.init_sockets(sockets)
    log("%s(%s)", app.init_when_ready, _when_ready)
    app.init_when_ready(_when_ready)

    try:
        #from here on, we own the vfb, even if we inherited one:
        if (starting or starting_desktop or upgrading) and clobber:
            #and it will be killed if exit cleanly:
            xvfb_pid = get_xvfb_pid()

        log("running %s", app.run)
        e = app.run()
        log("%s()=%s", app.run, e)
    except KeyboardInterrupt:
        log.info("stopping on KeyboardInterrupt")
        e = 0
    except Exception as e:
        log.error("server error", exc_info=True)
        e = -128
    if e > 0:
        # Upgrading/exiting, so leave X and dbus servers running
        if close_display:
            _cleanups.remove(close_display)
        if kill_dbus:
            _cleanups.remove(kill_dbus)
        from xpra.server.server_core import ServerCore
        if e == ServerCore.EXITING_CODE:
            log.info("exiting: not cleaning up Xvfb")
        else:
            log.info("upgrading: not cleaning up Xvfb")
        log("cleanups=%s", _cleanups)
        e = 0
    return e
Example #31
0
#!/usr/bin/env python
# This file is part of Xpra.
# Copyright (C) 2017 Antoine Martin <*****@*****.**>
# Xpra is released under the terms of the GNU GPL v2, or, at your option, any
# later version. See the file COPYING for details.

import os.path
import sys
import signal

from xpra.platform.gui import init as gui_init
gui_init()

from xpra.gtk_common.gobject_compat import import_gtk, import_gdk, import_pango, import_glib

gtk = import_gtk()
gdk = import_gdk()
pango = import_pango()
glib = import_glib()


from xpra.gtk_common.gtk_util import gtk_main, add_close_accel, scaled_image, pixbuf_new_from_file, \
                                    WIN_POS_CENTER, STATE_NORMAL
from xpra.platform.paths import get_icon_dir
from xpra.log import Logger, enable_debug_for
log = Logger("util")

_instance = None


def getUpdateStatusWindow():
Example #32
0
def do_main():
    from xpra.os_util import SIGNAMES
    from xpra.scripts.main import InitExit, InitInfo
    from xpra.gtk_common.quit import gtk_main_quit_on_fatal_exceptions_enable
    gtk_main_quit_on_fatal_exceptions_enable()

    from xpra.platform.gui import ready as gui_ready
    gui_init()
    try:
        from xpra.scripts.main import parse_cmdline, fixup_debug_option
        options, args = parse_cmdline(sys.argv)
        debug = fixup_debug_option(options.debug)
        if debug:
            for x in debug.split(","):
                enable_debug_for(x)
    except InitInfo as e:
        print(str(e))
        return 0
    except InitExit as e:
        return e.status
    except Exception:
        exception_dialog("Error parsing command line")
        return 1

    #allow config to be debugged:
    from xpra.scripts import config
    config.debug = log.debug

    try:
        app = ApplicationWindow()
        def app_signal(signum, _frame):
            print("")
            log("got signal %s" % SIGNAMES.get(signum, signum))
            def show_signal():
                app.show()
                app.client.cleanup()
                glib.timeout_add(1000, app.set_info_text, "got signal %s" % SIGNAMES.get(signum, signum))
                glib.timeout_add(1000, app.set_info_color, True)
            #call from UI thread:
            glib.idle_add(show_signal)
        if sys.version_info[0]<3:
            #breaks GTK3..
            signal.signal(signal.SIGINT, app_signal)
        signal.signal(signal.SIGTERM, app_signal)
        has_file = len(args) == 1
        if has_file:
            app.update_options_from_file(args[0])
            #the compressors and packet encoders cannot be changed from the UI
            #so apply them now:
            configure_network(app.config)
        debug = fixup_debug_option(app.config.debug)
        if debug:
            for x in debug.split(","):
                enable_debug_for(x)
        #suspend tray workaround for our window widgets:
        try:
            set_use_tray_workaround(False)
            app.create_window()
        finally:
            set_use_tray_workaround(True)
        app.update_gui_from_config()
    except Exception:
        exception_dialog("Error creating launcher form")
        return 1
    try:
        if app.config.autoconnect:
            #file says we should connect,
            #do that only (not showing UI unless something goes wrong):
            glib.idle_add(app.do_connect)
        if not has_file:
            app.reset_errors()
        gui_ready()
        if not app.config.autoconnect or app.config.debug:
            #FIXME: this is ugly as hell
            #We have to wait for the main loop to be running
            #to get the NSApplicationOpneFile signal,
            #so we end up duplicating some of the logic from just above
            #maybe we should always run this code from the main loop instead
            if OSX:
                def force_show():
                    from xpra.platform.darwin.gui import enable_focus_workaround, disable_focus_workaround
                    enable_focus_workaround()
                    app.show()
                    glib.timeout_add(500, disable_focus_workaround)
                #wait a little bit for the "openFile" signal
                app.__osx_open_signal = False
                def do_open_file(filename):
                    log.info("do_open_file(%s)", filename)
                    app.update_options_from_file(filename)
                    #the compressors and packet encoders cannot be changed from the UI
                    #so apply them now:
                    configure_network(app.config)
                    app.update_gui_from_config()
                    if app.config.autoconnect:
                        app.__osx_open_signal = True
                        glib.idle_add(app.do_connect)
                    else:
                        force_show()
                def open_file(_, filename):
                    log.info("open_file(%s)", filename)
                    glib.idle_add(do_open_file, filename)
                def do_open_URL(url):
                    log.info("do_open_URL(%s)", url)
                    app.__osx_open_signal = True
                    app.update_options_from_URL(url)
                    #the compressors and packet encoders cannot be changed from the UI
                    #so apply them now:
                    configure_network(app.config)
                    app.update_gui_from_config()
                    glib.idle_add(app.do_connect)
                def open_URL(url):
                    log.info("open_URL(%s)", url)
                    glib.idle_add(do_open_URL, url)
                from xpra.platform.darwin.gui import get_OSXApplication, register_URL_handler
                register_URL_handler(open_URL)
                try:
                    get_OSXApplication().connect("NSApplicationOpenFile", open_file)
                except Exception as e:
                    log.error("Error: cannot handle file associations:")
                    log.error(" %s", e)
                def may_show():
                    log("may_show() osx open signal=%s", app.__osx_open_signal)
                    if not app.__osx_open_signal:
                        force_show()
                glib.timeout_add(500, may_show)
            else:
                app.show()
        app.run()
    except KeyboardInterrupt:
        pass
    return 0
Example #33
0
def do_run_server(error_cb,
                  opts,
                  mode,
                  xpra_file,
                  extra_args,
                  desktop_display=None,
                  progress_cb=None):
    assert mode in (
        "start",
        "start-desktop",
        "upgrade",
        "upgrade-desktop",
        "shadow",
        "proxy",
    )

    def _progress(i, msg):
        if progress_cb:
            progress_cb(i, msg)

    progress = _progress

    progress(10, "initializing environment")
    try:
        cwd = os.getcwd()
    except OSError:
        cwd = os.path.expanduser("~")
        warn("current working directory does not exist, using '%s'\n" % cwd)
    validate_encryption(opts)
    if opts.encoding == "help" or "help" in opts.encodings:
        return show_encoding_help(opts)

    #remove anything pointing to dbus from the current env
    #(so we only detect a dbus instance started by pam,
    # and override everything else)
    for k in tuple(os.environ.keys()):
        if k.startswith("DBUS_"):
            del os.environ[k]

    use_display = parse_bool("use-display", opts.use_display)
    starting = mode == "start"
    starting_desktop = mode == "start-desktop"
    upgrading = mode == "upgrade"
    upgrading_desktop = mode == "upgrade-desktop"
    shadowing = mode == "shadow"
    proxying = mode == "proxy"

    if not proxying and POSIX and not OSX:
        #we don't support wayland servers,
        #so make sure GDK will use the X11 backend:
        from xpra.os_util import saved_env
        saved_env["GDK_BACKEND"] = "x11"
        os.environ["GDK_BACKEND"] = "x11"

    has_child_arg = (opts.start_child or opts.start_child_on_connect
                     or opts.start_child_after_connect
                     or opts.start_child_on_last_client_exit)
    if proxying or upgrading or upgrading_desktop:
        #when proxying or upgrading, don't exec any plain start commands:
        opts.start = opts.start_child = []
    elif opts.exit_with_children:
        assert has_child_arg, "exit-with-children was specified but start-child* is missing!"
    elif opts.start_child:
        warn("Warning: the 'start-child' option is used,")
        warn(" but 'exit-with-children' is not enabled,")
        warn(" use 'start' instead")

    if opts.bind_rfb and (proxying or starting):
        get_util_logger().warn(
            "Warning: bind-rfb sockets cannot be used with '%s' mode" % mode)
        opts.bind_rfb = []

    if not shadowing and not starting_desktop:
        opts.rfb_upgrade = 0

    if upgrading or upgrading_desktop or shadowing:
        #there should already be one running
        #so change None ('auto') to False
        if opts.pulseaudio is None:
            opts.pulseaudio = False

    #get the display name:
    if shadowing and not extra_args:
        if WIN32 or OSX:
            #just a virtual name for the only display available:
            display_name = "Main"
        else:
            from xpra.scripts.main import guess_X11_display
            dotxpra = DotXpra(opts.socket_dir, opts.socket_dirs)
            display_name = guess_X11_display(dotxpra, desktop_display)
    elif (upgrading or upgrading_desktop) and not extra_args:
        display_name = guess_xpra_display(opts.socket_dir, opts.socket_dirs)
    else:
        if len(extra_args) > 1:
            error_cb(
                "too many extra arguments (%i): only expected a display number"
                % len(extra_args))
        if len(extra_args) == 1:
            display_name = extra_args[0]
            if not shadowing and not upgrading and not use_display:
                display_name_check(display_name)
        else:
            if proxying:
                #find a free display number:
                dotxpra = DotXpra(opts.socket_dir, opts.socket_dirs)
                all_displays = dotxpra.sockets()
                #ie: [("LIVE", ":100"), ("LIVE", ":200"), ...]
                displays = [v[1] for v in all_displays]
                display_name = None
                for x in range(1000, 20000):
                    v = ":%s" % x
                    if v not in displays:
                        display_name = v
                        break
                if not display_name:
                    error_cb(
                        "you must specify a free virtual display name to use with the proxy server"
                    )
            elif use_display:
                #only use automatic guess for xpra displays and not X11 displays:
                display_name = guess_xpra_display(opts.socket_dir,
                                                  opts.socket_dirs)
            else:
                # We will try to find one automaticaly
                # Use the temporary magic value 'S' as marker:
                display_name = 'S' + str(os.getpid())

    if not (shadowing or proxying or upgrading or upgrading_desktop) and \
    opts.exit_with_children and not has_child_arg:
        error_cb(
            "--exit-with-children specified without any children to spawn; exiting immediately"
        )

    atexit.register(run_cleanups)

    # Generate the script text now, because os.getcwd() will
    # change if/when we daemonize:
    from xpra.server.server_util import (
        xpra_runner_shell_script,
        write_runner_shell_scripts,
        find_log_dir,
        create_input_devices,
        source_env,
    )
    script = None
    if POSIX and getuid() != 0:
        script = xpra_runner_shell_script(xpra_file, cwd, opts.socket_dir)

    uid = int(opts.uid)
    gid = int(opts.gid)
    username = get_username_for_uid(uid)
    home = get_home_for_uid(uid)
    ROOT = POSIX and getuid() == 0

    protected_fds = []
    protected_env = {}
    stdout = sys.stdout
    stderr = sys.stderr
    # Daemonize:
    if POSIX and opts.daemon:
        #daemonize will chdir to "/", so try to use an absolute path:
        if opts.password_file:
            opts.password_file = tuple(
                os.path.abspath(x) for x in opts.password_file)
        from xpra.server.server_util import daemonize
        daemonize()

    displayfd = 0
    if POSIX and opts.displayfd:
        try:
            displayfd = int(opts.displayfd)
            if displayfd > 0:
                protected_fds.append(displayfd)
        except ValueError as e:
            stderr.write("Error: invalid displayfd '%s':\n" % opts.displayfd)
            stderr.write(" %s\n" % e)
            del e

    clobber = int(upgrading or upgrading_desktop) * CLOBBER_UPGRADE | int(
        use_display or 0) * CLOBBER_USE_DISPLAY
    start_vfb = not (shadowing or proxying or clobber)
    xauth_data = None
    if start_vfb:
        xauth_data = get_hex_uuid()

    # if pam is present, try to create a new session:
    pam = None
    PAM_OPEN = POSIX and envbool("XPRA_PAM_OPEN", ROOT and uid != 0)
    if PAM_OPEN:
        try:
            from xpra.server.pam import pam_session  #@UnresolvedImport
        except ImportError as e:
            stderr.write("Error: failed to import pam module\n")
            stderr.write(" %s" % e)
            del e
            PAM_OPEN = False
    if PAM_OPEN:
        fdc = FDChangeCaptureContext()
        with fdc:
            pam = pam_session(username)
            env = {
                #"XDG_SEAT"               : "seat1",
                #"XDG_VTNR"               : "0",
                "XDG_SESSION_TYPE": "x11",
                #"XDG_SESSION_CLASS"      : "user",
                "XDG_SESSION_DESKTOP": "xpra",
            }
            #maybe we should just bail out instead?
            if pam.start():
                pam.set_env(env)
                items = {}
                if display_name.startswith(":"):
                    items["XDISPLAY"] = display_name
                if xauth_data:
                    items["XAUTHDATA"] = xauth_data
                pam.set_items(items)
                if pam.open():
                    #we can't close it, because we're not going to be root any more,
                    #but since we're the process leader for the session,
                    #terminating will also close the session
                    #add_cleanup(pam.close)
                    protected_env = pam.get_envlist()
                    os.environ.update(protected_env)
        #closing the pam fd causes the session to be closed,
        #and we don't want that!
        protected_fds += fdc.get_new_fds()

    #get XDG_RUNTIME_DIR from env options,
    #which may not be have updated os.environ yet when running as root with "--uid="
    xrd = os.path.abspath(parse_env(opts.env).get("XDG_RUNTIME_DIR", ""))
    if ROOT and (uid > 0 or gid > 0):
        #we're going to chown the directory if we create it,
        #ensure this cannot be abused, only use "safe" paths:
        if not any(x for x in ("/run/user/%i" % uid, "/tmp", "/var/tmp")
                   if xrd.startswith(x)):
            xrd = ""
        #these paths could cause problems if we were to create and chown them:
        if xrd.startswith("/tmp/.X11-unix") or xrd.startswith(
                "/tmp/.XIM-unix"):
            xrd = ""
    if not xrd:
        xrd = os.environ.get("XDG_RUNTIME_DIR")
    xrd = create_runtime_dir(xrd, uid, gid)
    if xrd:
        #this may override the value we get from pam
        #with the value supplied by the user:
        protected_env["XDG_RUNTIME_DIR"] = xrd

    if script:
        # Write out a shell-script so that we can start our proxy in a clean
        # environment:
        write_runner_shell_scripts(script)

    import datetime
    extra_expand = {
        "TIMESTAMP": datetime.datetime.now().strftime("%Y%m%d-%H%M%S")
    }
    log_to_file = opts.daemon or os.environ.get("XPRA_LOG_TO_FILE", "") == "1"
    if start_vfb or log_to_file:
        #we will probably need a log dir
        #either for the vfb, or for our own log file
        log_dir = opts.log_dir or ""
        if not log_dir or log_dir.lower() == "auto":
            log_dir = find_log_dir(username, uid=uid, gid=gid)
            if not log_dir:
                raise InitException(
                    "cannot find or create a logging directory")
        #expose the log-dir as "XPRA_LOG_DIR",
        #this is used by Xdummy for the Xorg log file
        if "XPRA_LOG_DIR" not in os.environ:
            os.environ["XPRA_LOG_DIR"] = log_dir

    if log_to_file:
        from xpra.server.server_util import select_log_file, open_log_file, redirect_std_to_log
        log_filename0 = osexpand(
            select_log_file(log_dir, opts.log_file, display_name), username,
            uid, gid, extra_expand)
        if os.path.exists(log_filename0) and not display_name.startswith("S"):
            #don't overwrite the log file just yet,
            #as we may still fail to start
            log_filename0 += ".new"
        logfd = open_log_file(log_filename0)
        if POSIX and ROOT and (uid > 0 or gid > 0):
            try:
                os.fchown(logfd, uid, gid)
            except OSError as e:
                noerr(stderr.write,
                      "failed to chown the log file '%s'\n" % log_filename0)
                noerr(stderr.flush)
        stdout, stderr = redirect_std_to_log(logfd, *protected_fds)
        noerr(
            stderr.write, "Entering daemon mode; " +
            "any further errors will be reported to:\n" +
            ("  %s\n" % log_filename0))
        noerr(stderr.flush)
        os.environ["XPRA_SERVER_LOG"] = log_filename0
    else:
        #server log does not exist:
        os.environ.pop("XPRA_SERVER_LOG", None)

    #warn early about this:
    if (starting or starting_desktop
        ) and desktop_display and opts.notifications and not opts.dbus_launch:
        print_DE_warnings()

    if start_vfb and opts.xvfb.find("Xephyr") >= 0 and opts.sync_xvfb <= 0:
        warn("Warning: using Xephyr as vfb")
        warn(" you should also enable the sync-xvfb option")
        warn(" to keep the Xephyr window updated")

    progress(10, "creating sockets")
    from xpra.net.socket_util import get_network_logger, setup_local_sockets, create_sockets
    sockets = create_sockets(opts, error_cb)

    sanitize_env()
    os.environ.update(source_env(opts.source))
    if POSIX:
        if xrd:
            os.environ["XDG_RUNTIME_DIR"] = xrd
        if not OSX:
            os.environ["XDG_SESSION_TYPE"] = "x11"
        if not starting_desktop:
            os.environ["XDG_CURRENT_DESKTOP"] = opts.wm_name
        configure_imsettings_env(opts.input_method)
    if display_name[0] != 'S':
        os.environ["DISPLAY"] = display_name
        if POSIX:
            os.environ["CKCON_X11_DISPLAY"] = display_name
    elif not start_vfb or opts.xvfb.find("Xephyr") < 0:
        os.environ.pop("DISPLAY", None)
    os.environ.update(protected_env)
    from xpra.log import Logger
    log = Logger("server")
    log("env=%s", os.environ)

    UINPUT_UUID_LEN = 12
    UINPUT_UUID_MIN_LEN = 12
    UINPUT_UUID_MAX_LEN = 32
    # Start the Xvfb server first to get the display_name if needed
    odisplay_name = display_name
    xvfb = None
    xvfb_pid = None
    uinput_uuid = None
    if start_vfb and use_display is None:
        #use-display='auto' so we have to figure out
        #if we have to start the vfb or not:
        if not display_name:
            use_display = False
        else:
            progress(20, "connecting to the display")
            start_vfb = verify_display(
                None, display_name, log_errors=False, timeout=1) != 0
    if start_vfb:
        progress(20, "starting a virtual display")
        assert not proxying and xauth_data
        pixel_depth = validate_pixel_depth(opts.pixel_depth, starting_desktop)
        from xpra.x11.vfb_util import start_Xvfb, check_xvfb_process, parse_resolution
        from xpra.server.server_util import has_uinput
        uinput_uuid = None
        if has_uinput() and opts.input_devices.lower() in (
                "uinput", "auto") and not shadowing:
            from xpra.os_util import get_rand_chars
            uinput_uuid = get_rand_chars(UINPUT_UUID_LEN)
        vfb_geom = ""
        try:
            vfb_geom = parse_resolution(opts.resize_display)
        except Exception:
            pass
        xvfb, display_name, cleanups = start_Xvfb(opts.xvfb, vfb_geom,
                                                  pixel_depth, display_name,
                                                  cwd, uid, gid, username,
                                                  xauth_data, uinput_uuid)
        for f in cleanups:
            add_cleanup(f)
        xvfb_pid = xvfb.pid
        #always update as we may now have the "real" display name:
        os.environ["DISPLAY"] = display_name
        os.environ["CKCON_X11_DISPLAY"] = display_name
        os.environ.update(protected_env)
        if display_name != odisplay_name and pam:
            pam.set_items({"XDISPLAY": display_name})

        def check_xvfb(timeout=0):
            return check_xvfb_process(xvfb, timeout=timeout, command=opts.xvfb)
    else:
        if POSIX and clobber:
            #if we're meant to be using a private XAUTHORITY file,
            #make sure to point to it:
            from xpra.x11.vfb_util import get_xauthority_path
            xauthority = get_xauthority_path(display_name, username, uid, gid)
            if os.path.exists(xauthority):
                log("found XAUTHORITY=%s", xauthority)
                os.environ["XAUTHORITY"] = xauthority

        def check_xvfb(timeout=0):  #pylint: disable=unused-argument
            return True

    if POSIX and not OSX and displayfd > 0:
        from xpra.platform.displayfd import write_displayfd
        try:
            display_no = display_name[1:]
            #ensure it is a string containing the number:
            display_no = str(int(display_no))
            log("writing display_no='%s' to displayfd=%i", display_no,
                displayfd)
            assert write_displayfd(displayfd, display_no), "timeout"
        except Exception as e:
            log.error("write_displayfd failed", exc_info=True)
            log.error("Error: failed to write '%s' to fd=%s", display_name,
                      displayfd)
            log.error(" %s", str(e) or type(e))
            del e

    if not check_xvfb(1):
        noerr(stderr.write, "vfb failed to start, exiting\n")
        return EXIT_VFB_ERROR

    if WIN32 and os.environ.get("XPRA_LOG_FILENAME"):
        os.environ["XPRA_SERVER_LOG"] = os.environ["XPRA_LOG_FILENAME"]
    if opts.daemon:
        log_filename1 = osexpand(
            select_log_file(log_dir, opts.log_file, display_name), username,
            uid, gid, extra_expand)
        if log_filename0 != log_filename1:
            # we now have the correct log filename, so use it:
            try:
                os.rename(log_filename0, log_filename1)
            except (OSError, IOError):
                pass
            else:
                os.environ["XPRA_SERVER_LOG"] = log_filename1
            if odisplay_name != display_name:
                #this may be used by scripts, let's try not to change it:
                noerr(stderr.write, "Actual display used: %s\n" % display_name)
            noerr(stderr.write,
                  "Actual log file name is now: %s\n" % log_filename1)
            noerr(stderr.flush)
        noerr(stdout.close)
        noerr(stderr.close)
    #we should not be using stdout or stderr from this point:
    del stdout
    del stderr

    if not check_xvfb():
        noerr(stderr.write, "vfb failed to start, exiting\n")
        return EXIT_VFB_ERROR

    #create devices for vfb if needed:
    devices = {}
    if not start_vfb and not proxying and not shadowing and envbool(
            "XPRA_UINPUT", True):
        #try to find the existing uinput uuid:
        #use a subprocess to avoid polluting our current process
        #with X11 connections before we get a chance to change uid
        prop = "_XPRA_UINPUT_ID"
        cmd = ["xprop", "-display", display_name, "-root", prop]
        log("looking for '%s' on display '%s' with XAUTHORITY='%s'", prop,
            display_name, os.environ.get("XAUTHORITY"))
        try:
            code, out, err = get_status_output(cmd)
        except Exception as e:
            log("failed to get existing uinput id: %s", e)
            del e
        else:
            log("Popen(%s)=%s", cmd, (code, out, err))
            if code == 0 and out.find("=") > 0:
                uinput_uuid = out.split("=", 1)[1]
                log("raw uinput uuid=%s", uinput_uuid)
                uinput_uuid = strtobytes(uinput_uuid.strip('\n\r"\\ '))
                if uinput_uuid:
                    if len(uinput_uuid) > UINPUT_UUID_MAX_LEN or len(
                            uinput_uuid) < UINPUT_UUID_MIN_LEN:
                        log.warn("Warning: ignoring invalid uinput id:")
                        log.warn(" '%s'", uinput_uuid)
                        uinput_uuid = None
                    else:
                        log.info("retrieved existing uinput id: %s",
                                 bytestostr(uinput_uuid))
    if uinput_uuid:
        devices = create_input_devices(uinput_uuid, uid)

    if ROOT and (uid != 0 or gid != 0):
        log("root: switching to uid=%i, gid=%i", uid, gid)
        setuidgid(uid, gid)
        os.environ.update({
            "HOME": home,
            "USER": username,
            "LOGNAME": username,
        })
        shell = get_shell_for_uid(uid)
        if shell:
            os.environ["SHELL"] = shell
        #now we've changed uid, it is safe to honour all the env updates:
        configure_env(opts.env)
        os.environ.update(protected_env)

    if opts.chdir:
        log("chdir(%s)", opts.chdir)
        os.chdir(opts.chdir)

    dbus_pid, dbus_env = 0, {}
    if not shadowing and POSIX and not OSX and not clobber:
        no_gtk()
        assert starting or starting_desktop or proxying
        try:
            from xpra.server.dbus.dbus_start import start_dbus
        except ImportError as e:
            log("dbus components are not installed: %s", e)
        else:
            dbus_pid, dbus_env = start_dbus(opts.dbus_launch)
            if dbus_env:
                os.environ.update(dbus_env)

    if not proxying:
        if POSIX and not OSX:
            no_gtk()
            if starting or starting_desktop or shadowing:
                r = verify_display(xvfb, display_name, shadowing)
                if r:
                    return r
        #on win32, this ensures that we get the correct screen size to shadow:
        from xpra.platform.gui import init as gui_init
        log("gui_init()")
        gui_init()

    progress(50, "creating local sockets")
    #setup unix domain socket:
    netlog = get_network_logger()
    local_sockets = setup_local_sockets(opts.bind, opts.socket_dir,
                                        opts.socket_dirs, display_name,
                                        clobber, opts.mmap_group,
                                        opts.socket_permissions, username, uid,
                                        gid)
    netlog("setting up local sockets: %s", local_sockets)
    sockets.update(local_sockets)
    if POSIX and (starting or upgrading or starting_desktop
                  or upgrading_desktop):
        #all unix domain sockets:
        ud_paths = [
            sockpath for stype, _, sockpath, _ in local_sockets
            if stype == "unix-domain"
        ]
        if ud_paths:
            #choose one so our xdg-open override script can use to talk back to us:
            if opts.forward_xdg_open:
                for x in ("/usr/libexec/xpra", "/usr/lib/xpra"):
                    xdg_override = os.path.join(x, "xdg-open")
                    if os.path.exists(xdg_override):
                        os.environ["PATH"] = x + os.pathsep + os.environ.get(
                            "PATH", "")
                        os.environ["XPRA_SERVER_SOCKET"] = ud_paths[0]
                        break
        else:
            log.warn("Warning: no local server sockets,")
            if opts.forward_xdg_open:
                log.warn(" forward-xdg-open cannot be enabled")
            log.warn(" non-embedded ssh connections will not be available")

    set_server_features(opts)

    if not proxying and POSIX and not OSX:
        if not check_xvfb():
            return 1
        from xpra.x11.gtk_x11.gdk_display_source import init_gdk_display_source
        if os.environ.get("NO_AT_BRIDGE") is None:
            os.environ["NO_AT_BRIDGE"] = "1"
        init_gdk_display_source()
        #(now we can access the X11 server)
        if uinput_uuid:
            save_uinput_id(uinput_uuid)

    progress(60, "initializing server")
    if shadowing:
        app = make_shadow_server()
    elif proxying:
        app = make_proxy_server()
    else:
        if starting or upgrading:
            app = make_server(clobber)
        else:
            assert starting_desktop or upgrading_desktop
            app = make_desktop_server(clobber)
        app.init_virtual_devices(devices)

    try:
        app.exec_cwd = opts.chdir or cwd
        app.display_name = display_name
        app.init(opts)
        progress(70, "initializing sockets")
        app.init_sockets(sockets)
        app.init_dbus(dbus_pid, dbus_env)
        if not shadowing and not proxying:
            app.init_display_pid(xvfb_pid)
        app.original_desktop_display = desktop_display
        del opts
        if not app.server_ready():
            return 1
        progress(80, "finalizing")
        app.server_init()
        app.setup()
        app.init_when_ready(_when_ready)
    except InitException as e:
        log.error("xpra server initialization error:")
        log.error(" %s", e)
        app.cleanup()
        return 1
    except Exception as e:
        log.error("Error: cannot start the %s server",
                  app.session_type,
                  exc_info=True)
        log.error(str(e))
        log.info("")
        if upgrading or upgrading_desktop:
            #something abnormal occurred,
            #don't kill the vfb on exit:
            from xpra.server import EXITING_CODE
            app._upgrading = EXITING_CODE
        app.cleanup()
        return 1

    try:
        progress(100, "running")
        log("running %s", app.run)
        r = app.run()
        log("%s()=%s", app.run, r)
    except KeyboardInterrupt:
        log.info("stopping on KeyboardInterrupt")
        app.cleanup()
        return EXIT_OK
    except Exception:
        log.error("server error", exc_info=True)
        app.cleanup()
        return -128
    else:
        if r > 0:
            r = 0
    return r
Example #34
0
def main():
    from xpra.os_util import SIGNAMES
    from xpra.gtk_common.quit import gtk_main_quit_on_fatal_exceptions_enable
    gtk_main_quit_on_fatal_exceptions_enable()

    from xpra.platform import program_context
    from xpra.platform.gui import ready as gui_ready
    from xpra.log import enable_color
    with program_context("Xpra-Launcher", "Xpra Connection Launcher"):
        enable_color()
        gui_init()
        try:
            from xpra.scripts.main import parse_cmdline, fixup_debug_option
            options, args = parse_cmdline(sys.argv)
            debug = fixup_debug_option(options.debug)
            if debug:
                for x in debug.split(","):
                    enable_debug_for(x)
        except Exception:
            exception_dialog("Error parsing command line")
            return 1

        try:
            app = ApplicationWindow()
            def app_signal(signum, frame):
                print("")
                log("got signal %s" % SIGNAMES.get(signum, signum))
                def show_signal():
                    app.show()
                    app.client.cleanup()
                    glib.timeout_add(1000, app.set_info_text, "got signal %s" % SIGNAMES.get(signum, signum))
                    glib.timeout_add(1000, app.set_info_color, True)
                #call from UI thread:
                glib.idle_add(show_signal)
            if sys.version_info[0]<3:
                #breaks GTK3..
                signal.signal(signal.SIGINT, app_signal)
            signal.signal(signal.SIGTERM, app_signal)
            has_file = len(args) == 1
            if has_file:
                app.update_options_from_file(args[0])
                #the compressors and packet encoders cannot be changed from the UI
                #so apply them now:
                configure_network(app.config)
            debug = fixup_debug_option(app.config.debug)
            if debug:
                for x in debug.split(","):
                    enable_debug_for(x)
            #suspend tray workaround for our window widgets:
            try:
                set_use_tray_workaround(False)
                app.create_window()
            finally:
                set_use_tray_workaround(True)
            app.update_gui_from_config()
        except Exception:
            exception_dialog("Error creating launcher form")
            return 1
        try:
            if app.config.autoconnect:
                #file says we should connect,
                #do that only (not showing UI unless something goes wrong):
                glib.idle_add(app.do_connect)
            if not has_file:
                app.reset_errors()
            gui_ready()
            if not app.config.autoconnect or app.config.debug:
                #FIXME: this is ugly as hell
                #We have to wait for the main loop to be running
                #to get the NSApplicationOpneFile signal,
                #so we end up duplicating some of the logic from just above
                #maybe we should always run this code from the main loop instead
                if sys.platform.startswith("darwin"):
                    #wait a little bit for the "openFile" signal
                    app.__osx_open_file = False
                    def do_open_file(filename):
                        app.__osx_open_file = True
                        app.update_options_from_file(filename)
                        #the compressors and packet encoders cannot be changed from the UI
                        #so apply them now:
                        configure_network(app.config)
                        app.update_gui_from_config()
                        if app.config.autoconnect:
                            glib.idle_add(app.do_connect)
                    def open_file(_, filename):
                        log("open_file(%s)", filename)
                        glib.idle_add(do_open_file, filename)
                    from xpra.platform.darwin.gui import get_OSXApplication
                    get_OSXApplication().connect("NSApplicationOpenFile", open_file)
                    def may_show():
                        log("may_show() osx open file=%s", app.__osx_open_file)
                        if not app.__osx_open_file:
                            app.show()
                    glib.timeout_add(500, may_show)
                else:
                    app.show()
            app.run()
        except KeyboardInterrupt:
            pass
        return 0
Example #35
0
def main():
    from xpra.os_util import SIGNAMES
    from xpra.gtk_common.quit import gtk_main_quit_on_fatal_exceptions_enable
    gtk_main_quit_on_fatal_exceptions_enable()

    from xpra.platform import init as platform_init, clean as platform_clean
    from xpra.platform.gui import ready as gui_ready
    from xpra.log import enable_color
    try:
        platform_init("Xpra-Launcher", "Xpra Connection Launcher")
        enable_color()
        gui_init()
        try:
            from xpra.scripts.main import parse_cmdline, fixup_debug_option
            options, args = parse_cmdline(sys.argv)
            debug = fixup_debug_option(options.debug)
            if debug:
                for x in debug.split(","):
                    enable_debug_for(x)
        except Exception:
            exception_dialog("Error parsing command line")
            return 1

        try:
            app = ApplicationWindow()
            def app_signal(signum, frame):
                print("")
                log("got signal %s" % SIGNAMES.get(signum, signum))
                def show_signal():
                    app.show()
                    app.client.cleanup()
                    glib.timeout_add(1000, app.set_info_text, "got signal %s" % SIGNAMES.get(signum, signum))
                    glib.timeout_add(1000, app.set_info_color, True)
                #call from UI thread:
                glib.idle_add(show_signal)
            if sys.version_info[0]<3:
                #breaks GTK3..
                signal.signal(signal.SIGINT, app_signal)
            signal.signal(signal.SIGTERM, app_signal)
            has_file = len(args) == 1
            if has_file:
                app.update_options_from_file(args[0])
                #the compressors and packet encoders cannot be changed from the UI
                #so apply them now:
                configure_network(app.config)
            debug = fixup_debug_option(app.config.debug)
            if debug:
                for x in debug.split(","):
                    enable_debug_for(x)
            #suspend tray workaround for our window widgets:
            try:
                set_use_tray_workaround(False)
                app.create_window()
            finally:
                set_use_tray_workaround(True)
            app.update_gui_from_config()
        except Exception:
            exception_dialog("Error creating launcher form")
            return 1
        try:
            if app.config.autoconnect:
                #file says we should connect,
                #do that only (not showing UI unless something goes wrong):
                glib.idle_add(app.do_connect)
            if not has_file:
                app.reset_errors()
            gui_ready()
            if not app.config.autoconnect or app.config.debug:
                app.show()
            app.run()
        except KeyboardInterrupt:
            pass
        return 0
    finally:
        platform_clean()
Example #36
0
def do_main(argv):
    from xpra.os_util import SIGNAMES
    from xpra.scripts.main import InitExit, InitInfo
    from xpra.platform.gui import init as gui_init, ready as gui_ready

    if POSIX and not OSX:
        from xpra.x11.gtk_x11.gdk_display_source import init_gdk_display_source
        init_gdk_display_source()

    gui_init()
    try:
        from xpra.scripts.parsing import parse_cmdline, fixup_debug_option
        options, args = parse_cmdline(argv)
        debug = fixup_debug_option(options.debug)
        if debug:
            for x in debug.split(","):
                enable_debug_for(x)
    except InitInfo as e:
        print(str(e))
        return 0
    except InitExit as e:
        return e.status
    except Exception:
        exception_dialog("Error parsing command line")
        return 1

    #allow config to be debugged:
    from xpra.scripts import config
    config.debug = log.debug

    try:
        app = ApplicationWindow()

        def handle_signal(signum):
            app.show()
            client = app.client
            if client:
                client.cleanup()
            else:
                Gtk.main_quit()
            GLib.timeout_add(1000, app.set_info_text,
                             "got signal %s" % SIGNAMES.get(signum, signum))
            GLib.timeout_add(1000, app.set_info_color, True)

        register_os_signals(handle_signal, "Client Launcher")
        has_file = len(args) == 1
        if has_file:
            app.update_options_from_file(args[0])
            #the compressors and packet encoders cannot be changed from the UI
            #so apply them now:
            configure_network(app.config)
        debug = fixup_debug_option(app.config.debug)
        if debug:
            for x in debug.split(","):
                enable_debug_for(x)
        app.create_window_with_config()
    except Exception:
        exception_dialog("Error creating launcher form")
        return 1
    try:
        if app.config.autoconnect:
            #file says we should connect,
            #do that only (not showing UI unless something goes wrong):
            GLib.idle_add(app.do_connect)
        if not has_file:
            app.reset_errors()
        if not app.config.autoconnect or app.config.debug:
            if OSX:
                from xpra.platform.darwin.gui import wait_for_open_handlers, force_focus
                if has_file:
                    force_focus()
                    app.show()
                else:

                    def open_file(filename):
                        log("open_file(%s)", filename)
                        app.update_options_from_file(filename)
                        #the compressors and packet encoders cannot be changed from the UI
                        #so apply them now:
                        configure_network(app.config)
                        app.update_gui_from_config()
                        if app.config.autoconnect:
                            app.__osx_open_signal = True
                            GLib.idle_add(app.do_connect)
                        else:
                            force_focus()
                            app.show()

                    def open_URL(url):
                        log("open_URL(%s)", url)
                        app.__osx_open_signal = True
                        app.update_options_from_URL(url)
                        #the compressors and packet encoders cannot be changed from the UI
                        #so apply them now:
                        configure_network(app.config)
                        app.update_gui_from_config()
                        GLib.idle_add(app.do_connect)

                    wait_for_open_handlers(app.show, open_file, open_URL)
            else:
                app.show()
        gui_ready()
        app.run()
    except KeyboardInterrupt:
        pass
    return 0
Example #37
0
def do_main(argv):
    from xpra.os_util import SIGNAMES
    from xpra.scripts.main import InitExit, InitInfo
    from xpra.gtk_common.quit import gtk_main_quit_on_fatal_exceptions_enable
    gtk_main_quit_on_fatal_exceptions_enable()

    from xpra.platform.gui import ready as gui_ready
    gui_init()
    try:
        from xpra.scripts.parsing import parse_cmdline, fixup_debug_option
        options, args = parse_cmdline(argv)
        debug = fixup_debug_option(options.debug)
        if debug:
            for x in debug.split(","):
                enable_debug_for(x)
    except InitInfo as e:
        print(str(e))
        return 0
    except InitExit as e:
        return e.status
    except Exception:
        exception_dialog("Error parsing command line")
        return 1

    #allow config to be debugged:
    from xpra.scripts import config
    config.debug = log.debug

    try:
        app = ApplicationWindow()

        def app_signal(signum, _frame):
            print("")
            log("got signal %s" % SIGNAMES.get(signum, signum))

            def show_signal():
                app.show()
                app.client.cleanup()
                glib.timeout_add(
                    1000, app.set_info_text,
                    "got signal %s" % SIGNAMES.get(signum, signum))
                glib.timeout_add(1000, app.set_info_color, True)

            #call from UI thread:
            glib.idle_add(show_signal)

        if sys.version_info[0] < 3:
            #breaks GTK3..
            signal.signal(signal.SIGINT, app_signal)
        signal.signal(signal.SIGTERM, app_signal)
        has_file = len(args) == 1
        if has_file:
            app.update_options_from_file(args[0])
            #the compressors and packet encoders cannot be changed from the UI
            #so apply them now:
            configure_network(app.config)
        debug = fixup_debug_option(app.config.debug)
        if debug:
            for x in debug.split(","):
                enable_debug_for(x)
        app.create_window_with_config()
    except Exception:
        exception_dialog("Error creating launcher form")
        return 1
    try:
        if app.config.autoconnect:
            #file says we should connect,
            #do that only (not showing UI unless something goes wrong):
            glib.idle_add(app.do_connect)
        if not has_file:
            app.reset_errors()
        if not app.config.autoconnect or app.config.debug:
            if OSX and not has_file:
                from xpra.platform.darwin.gui import wait_for_open_handlers, show_with_focus_workaround

                def open_file(filename):
                    log("open_file(%s)", filename)
                    app.update_options_from_file(filename)
                    #the compressors and packet encoders cannot be changed from the UI
                    #so apply them now:
                    configure_network(app.config)
                    app.update_gui_from_config()
                    if app.config.autoconnect:
                        app.__osx_open_signal = True
                        glib.idle_add(app.do_connect)
                    else:
                        show_with_focus_workaround(app.show)

                def open_URL(url):
                    log("open_URL(%s)", url)
                    app.__osx_open_signal = True
                    app.update_options_from_URL(url)
                    #the compressors and packet encoders cannot be changed from the UI
                    #so apply them now:
                    configure_network(app.config)
                    app.update_gui_from_config()
                    glib.idle_add(app.do_connect)

                wait_for_open_handlers(app.show, open_file, open_URL)
            else:
                app.show()
        gui_ready()
        app.run()
    except KeyboardInterrupt:
        pass
    return 0
Example #38
0
def do_run_server(error_cb,
                  opts,
                  mode,
                  xpra_file,
                  extra_args,
                  desktop_display=None):
    try:
        cwd = os.getcwd()
    except OSError:
        cwd = os.path.expanduser("~")
        warn("current working directory does not exist, using '%s'\n" % cwd)
    validate_encryption(opts)
    if opts.encoding == "help" or "help" in opts.encodings:
        return show_encoding_help(opts)

    assert mode in ("start", "start-desktop", "upgrade", "shadow", "proxy")
    starting = mode == "start"
    starting_desktop = mode == "start-desktop"
    upgrading = mode == "upgrade"
    shadowing = mode == "shadow"
    proxying = mode == "proxy"
    clobber = upgrading or opts.use_display
    start_vfb = not shadowing and not proxying and not clobber

    if shadowing and is_Wayland():
        warn("shadow servers do not support Wayland, switch to X11")

    if opts.bind_rfb and (proxying or starting):
        get_util_logger().warn(
            "Warning: bind-rfb sockets cannot be used with '%s' mode" % mode)
        opts.bind_rfb = ""

    if not shadowing and not starting_desktop:
        opts.rfb_upgrade = 0

    if upgrading or shadowing:
        #there should already be one running
        opts.pulseaudio = False

    #get the display name:
    if shadowing and not extra_args:
        if WIN32 or OSX:
            #just a virtual name for the only display available:
            display_name = ":0"
        else:
            from xpra.scripts.main import guess_X11_display
            dotxpra = DotXpra(opts.socket_dir, opts.socket_dirs)
            display_name = guess_X11_display(dotxpra, desktop_display)
    elif upgrading and not extra_args:
        display_name = guess_xpra_display(opts.socket_dir, opts.socket_dirs)
    else:
        if len(extra_args) > 1:
            error_cb(
                "too many extra arguments (%i): only expected a display number"
                % len(extra_args))
        if len(extra_args) == 1:
            display_name = extra_args[0]
            if not shadowing and not proxying and not opts.use_display:
                display_name_check(display_name)
        else:
            if proxying:
                #find a free display number:
                dotxpra = DotXpra(opts.socket_dir, opts.socket_dirs)
                all_displays = dotxpra.sockets()
                #ie: [("LIVE", ":100"), ("LIVE", ":200"), ...]
                displays = [v[1] for v in all_displays]
                display_name = None
                for x in range(1000, 20000):
                    v = ":%s" % x
                    if v not in displays:
                        display_name = v
                        break
                if not display_name:
                    error_cb(
                        "you must specify a free virtual display name to use with the proxy server"
                    )
            elif opts.use_display:
                #only use automatic guess for xpra displays and not X11 displays:
                display_name = guess_xpra_display(opts.socket_dir,
                                                  opts.socket_dirs)
            else:
                # We will try to find one automaticaly
                # Use the temporary magic value 'S' as marker:
                display_name = 'S' + str(os.getpid())

    if not shadowing and not proxying and not upgrading and opts.exit_with_children and not opts.start_child:
        error_cb(
            "--exit-with-children specified without any children to spawn; exiting immediately"
        )

    atexit.register(run_cleanups)

    # Generate the script text now, because os.getcwd() will
    # change if/when we daemonize:
    from xpra.server.server_util import (
        xpra_runner_shell_script,
        write_runner_shell_scripts,
        write_pidfile,
        find_log_dir,
        create_input_devices,
    )
    script = xpra_runner_shell_script(xpra_file, cwd, opts.socket_dir)

    uid = int(opts.uid)
    gid = int(opts.gid)
    username = get_username_for_uid(uid)
    home = get_home_for_uid(uid)
    xauth_data = None
    if start_vfb:
        xauth_data = get_hex_uuid()
    ROOT = POSIX and getuid() == 0

    protected_fds = []
    protected_env = {}
    stdout = sys.stdout
    stderr = sys.stderr
    # Daemonize:
    if POSIX and opts.daemon:
        #daemonize will chdir to "/", so try to use an absolute path:
        if opts.password_file:
            opts.password_file = tuple(
                os.path.abspath(x) for x in opts.password_file)
        from xpra.server.server_util import daemonize
        daemonize()

    displayfd = 0
    if POSIX and opts.displayfd:
        try:
            displayfd = int(opts.displayfd)
            if displayfd > 0:
                protected_fds.append(displayfd)
        except ValueError as e:
            stderr.write("Error: invalid displayfd '%s':\n" % opts.displayfd)
            stderr.write(" %s\n" % e)
            del e

    # if pam is present, try to create a new session:
    pam = None
    PAM_OPEN = POSIX and envbool("XPRA_PAM_OPEN", ROOT and uid != 0)
    if PAM_OPEN:
        try:
            from xpra.server.pam import pam_session  #@UnresolvedImport
        except ImportError as e:
            stderr.write("Error: failed to import pam module\n")
            stderr.write(" %s" % e)
            del e
            PAM_OPEN = False
    if PAM_OPEN:
        fdc = FDChangeCaptureContext()
        with fdc:
            pam = pam_session(username)
            env = {
                #"XDG_SEAT"               : "seat1",
                #"XDG_VTNR"               : "0",
                "XDG_SESSION_TYPE": "x11",
                #"XDG_SESSION_CLASS"      : "user",
                "XDG_SESSION_DESKTOP": "xpra",
            }
            #maybe we should just bail out instead?
            if pam.start():
                pam.set_env(env)
                items = {}
                if display_name.startswith(":"):
                    items["XDISPLAY"] = display_name
                if xauth_data:
                    items["XAUTHDATA"] = xauth_data
                pam.set_items(items)
                if pam.open():
                    #we can't close it, because we're not going to be root any more,
                    #but since we're the process leader for the session,
                    #terminating will also close the session
                    #add_cleanup(pam.close)
                    protected_env = pam.get_envlist()
                    os.environ.update(protected_env)
        #closing the pam fd causes the session to be closed,
        #and we don't want that!
        protected_fds += fdc.get_new_fds()

    #get XDG_RUNTIME_DIR from env options,
    #which may not be have updated os.environ yet when running as root with "--uid="
    xrd = os.path.abspath(parse_env(opts.env).get("XDG_RUNTIME_DIR", ""))
    if ROOT and (uid > 0 or gid > 0):
        #we're going to chown the directory if we create it,
        #ensure this cannot be abused, only use "safe" paths:
        if not any(x for x in ("/run/user/%i" % uid, "/tmp", "/var/tmp")
                   if xrd.startswith(x)):
            xrd = ""
        #these paths could cause problems if we were to create and chown them:
        if xrd.startswith("/tmp/.X11-unix") or xrd.startswith(
                "/tmp/.XIM-unix"):
            xrd = ""
    if not xrd:
        xrd = os.environ.get("XDG_RUNTIME_DIR")
    xrd = create_runtime_dir(xrd, uid, gid)
    if xrd:
        #this may override the value we get from pam
        #with the value supplied by the user:
        protected_env["XDG_RUNTIME_DIR"] = xrd

    if opts.pidfile:
        write_pidfile(opts.pidfile, uid, gid)

    if POSIX and not ROOT:
        # Write out a shell-script so that we can start our proxy in a clean
        # environment:
        write_runner_shell_scripts(script)

    if start_vfb or opts.daemon:
        #we will probably need a log dir
        #either for the vfb, or for our own log file
        log_dir = opts.log_dir or ""
        if not log_dir or log_dir.lower() == "auto":
            log_dir = find_log_dir(username, uid=uid, gid=gid)
            if not log_dir:
                raise InitException(
                    "cannot find or create a logging directory")
        #expose the log-dir as "XPRA_LOG_DIR",
        #this is used by Xdummy for the Xorg log file
        if "XPRA_LOG_DIR" not in os.environ:
            os.environ["XPRA_LOG_DIR"] = log_dir

        if opts.daemon:
            from xpra.server.server_util import select_log_file, open_log_file, redirect_std_to_log
            log_filename0 = osexpand(
                select_log_file(log_dir, opts.log_file, display_name),
                username, uid, gid)
            logfd = open_log_file(log_filename0)
            if ROOT and (uid > 0 or gid > 0):
                try:
                    os.fchown(logfd, uid, gid)
                except:
                    pass
            stdout, stderr = redirect_std_to_log(logfd, *protected_fds)
            try:
                stderr.write("Entering daemon mode; " +
                             "any further errors will be reported to:\n" +
                             ("  %s\n" % log_filename0))
            except IOError:
                #we tried our best, logging another error won't help
                pass

    #warn early about this:
    if (starting or starting_desktop
        ) and desktop_display and opts.notifications and not opts.dbus_launch:
        print_DE_warnings()

    log = get_util_logger()
    sockets, mdns_recs, wrap_socket_fn = create_sockets(opts, error_cb)

    sanitize_env()
    if POSIX:
        if xrd:
            os.environ["XDG_RUNTIME_DIR"] = xrd
        os.environ["XDG_SESSION_TYPE"] = "x11"
        if not starting_desktop:
            os.environ["XDG_CURRENT_DESKTOP"] = opts.wm_name
        configure_imsettings_env(opts.input_method)
    if display_name[0] != 'S':
        os.environ["DISPLAY"] = display_name
        os.environ["CKCON_X11_DISPLAY"] = display_name
    else:
        try:
            del os.environ["DISPLAY"]
        except KeyError:
            pass
    os.environ.update(protected_env)
    log("env=%s", os.environ)

    UINPUT_UUID_LEN = 12
    UINPUT_UUID_MIN_LEN = 12
    UINPUT_UUID_MAX_LEN = 32
    # Start the Xvfb server first to get the display_name if needed
    odisplay_name = display_name
    xvfb = None
    xvfb_pid = None
    uinput_uuid = None
    if start_vfb:
        assert not proxying and xauth_data
        pixel_depth = validate_pixel_depth(opts.pixel_depth, starting_desktop)
        from xpra.x11.vfb_util import start_Xvfb, check_xvfb_process
        from xpra.server.server_util import has_uinput
        uinput_uuid = None
        if has_uinput() and opts.input_devices.lower() in (
                "uinput", "auto") and not shadowing:
            from xpra.os_util import get_rand_chars
            uinput_uuid = get_rand_chars(UINPUT_UUID_LEN)
        xvfb, display_name, cleanups = start_Xvfb(opts.xvfb, pixel_depth,
                                                  display_name, cwd, uid, gid,
                                                  username, xauth_data,
                                                  uinput_uuid)
        for f in cleanups:
            add_cleanup(f)
        xvfb_pid = xvfb.pid
        #always update as we may now have the "real" display name:
        os.environ["DISPLAY"] = display_name
        os.environ["CKCON_X11_DISPLAY"] = display_name
        os.environ.update(protected_env)
        if display_name != odisplay_name and pam:
            pam.set_items({"XDISPLAY": display_name})

        def check_xvfb():
            return check_xvfb_process(xvfb)
    else:
        if POSIX and clobber:
            #if we're meant to be using a private XAUTHORITY file,
            #make sure to point to it:
            from xpra.x11.vfb_util import get_xauthority_path
            xauthority = get_xauthority_path(display_name, username, uid, gid)
            if os.path.exists(xauthority):
                os.environ["XAUTHORITY"] = xauthority

        def check_xvfb():
            return True

    if POSIX and not OSX and displayfd > 0:
        from xpra.platform.displayfd import write_displayfd
        try:
            display = display_name[1:]
            log("writing display='%s' to displayfd=%i", display, displayfd)
            assert write_displayfd(displayfd, display), "timeout"
        except Exception as e:
            log.error("write_displayfd failed", exc_info=True)
            log.error("Error: failed to write '%s' to fd=%s", display_name,
                      displayfd)
            log.error(" %s", str(e) or type(e))
            del e
        try:
            os.close(displayfd)
        except IOError:
            pass

    kill_display = None
    if not proxying:
        add_cleanup(close_gtk_display)
    if not proxying and not shadowing:

        def kill_display():
            if xvfb_pid:
                kill_xvfb(xvfb_pid)

        add_cleanup(kill_display)

    if opts.daemon:

        def noerr(fn, *args):
            try:
                fn(*args)
            except:
                pass

        log_filename1 = osexpand(
            select_log_file(log_dir, opts.log_file, display_name), username,
            uid, gid)
        if log_filename0 != log_filename1:
            # we now have the correct log filename, so use it:
            os.rename(log_filename0, log_filename1)
            if odisplay_name != display_name:
                #this may be used by scripts, let's try not to change it:
                noerr(stderr.write, "Actual display used: %s\n" % display_name)
            noerr(stderr.write,
                  "Actual log file name is now: %s\n" % log_filename1)
            noerr(stderr.flush)
        noerr(stdout.close)
        noerr(stderr.close)
    #we should not be using stdout or stderr from this point:
    del stdout
    del stderr

    if not check_xvfb():
        #xvfb problem: exit now
        return 1

    #create devices for vfb if needed:
    devices = {}
    if not start_vfb and not proxying and not shadowing:
        #try to find the existing uinput uuid:
        #use a subprocess to avoid polluting our current process
        #with X11 connections before we get a chance to change uid
        prop = "_XPRA_UINPUT_ID"
        cmd = ["xprop", "-display", display_name, "-root", prop]
        log("looking for '%s' on display '%s' with XAUTHORITY='%s'", prop,
            display_name, os.environ.get("XAUTHORITY"))
        try:
            code, out, err = get_status_output(cmd)
        except Exception as e:
            log("failed to get existing uinput id: %s", e)
            del e
        else:
            log("Popen(%s)=%s", cmd, (code, out, err))
            if code == 0 and out.find("=") > 0:
                uinput_uuid = out.split("=", 1)[1]
                log("raw uinput uuid=%s", uinput_uuid)
                uinput_uuid = strtobytes(uinput_uuid.strip('\n\r"\\ '))
                if uinput_uuid:
                    if len(uinput_uuid) > UINPUT_UUID_MAX_LEN or len(
                            uinput_uuid) < UINPUT_UUID_MIN_LEN:
                        log.warn("Warning: ignoring invalid uinput id:")
                        log.warn(" '%s'", uinput_uuid)
                        uinput_uuid = None
                    else:
                        log.info("retrieved existing uinput id: %s",
                                 bytestostr(uinput_uuid))
    if uinput_uuid:
        devices = create_input_devices(uinput_uuid, uid)

    if ROOT and (uid != 0 or gid != 0):
        log("root: switching to uid=%i, gid=%i", uid, gid)
        setuidgid(uid, gid)
        os.environ.update({
            "HOME": home,
            "USER": username,
            "LOGNAME": username,
        })
        shell = get_shell_for_uid(uid)
        if shell:
            os.environ["SHELL"] = shell
        #now we've changed uid, it is safe to honour all the env updates:
        configure_env(opts.env)
        os.environ.update(protected_env)

    if opts.chdir:
        os.chdir(opts.chdir)

    display = None
    if not proxying:
        no_gtk()
        if POSIX and not OSX and (starting or starting_desktop or shadowing):
            #check that we can access the X11 display:
            from xpra.x11.vfb_util import verify_display_ready
            if not verify_display_ready(xvfb, display_name, shadowing):
                return 1
            if not PYTHON3:
                from xpra.x11.gtk2.gdk_display_util import verify_gdk_display  #@UnusedImport
            else:
                from xpra.x11.gtk3.gdk_display_util import verify_gdk_display  #@Reimport
            display = verify_gdk_display(display_name)
            if not display:
                return 1
        #on win32, this ensures that we get the correct screen size to shadow:
        from xpra.platform.gui import init as gui_init
        gui_init()

    #setup unix domain socket:
    from xpra.server.socket_util import get_network_logger, setup_local_sockets
    netlog = get_network_logger()
    if not opts.socket_dir and not opts.socket_dirs:
        #we always need at least one valid socket dir
        from xpra.platform.paths import get_socket_dirs
        opts.socket_dirs = get_socket_dirs()
    local_sockets = setup_local_sockets(opts.bind, opts.socket_dir,
                                        opts.socket_dirs, display_name,
                                        clobber, opts.mmap_group,
                                        opts.socket_permissions, username, uid,
                                        gid)
    netlog("setting up local sockets: %s", local_sockets)
    ssh_port = get_ssh_port()
    ssh_access = ssh_port > 0 and opts.ssh.lower().strip() not in FALSE_OPTIONS
    for rec, cleanup_socket in local_sockets:
        socktype, socket, sockpath = rec
        #ie: ("unix-domain", sock, sockpath), cleanup_socket
        sockets.append(rec)
        netlog("%s %s : %s", socktype, sockpath, socket)
        add_cleanup(cleanup_socket)
        if opts.mdns and ssh_access:
            netlog("ssh %s:%s : %s", "", ssh_port, socket)
            add_mdns(mdns_recs, "ssh", "", ssh_port)

    def b(v):
        return str(v).lower() not in FALSE_OPTIONS

    #turn off some server mixins:
    from xpra.server import server_features
    impwarned = []

    def impcheck(*modules):
        for mod in modules:
            try:
                __import__("xpra.%s" % mod, {}, {}, [])
            except ImportError:
                if mod not in impwarned:
                    impwarned.append(mod)
                    log = get_util_logger()
                    log.warn("Warning: missing %s module", mod)
                return False
        return True

    server_features.notifications = opts.notifications and impcheck(
        "notifications")
    server_features.webcam = b(opts.webcam) and impcheck("codecs")
    server_features.clipboard = b(opts.clipboard) and impcheck("clipboard")
    server_features.audio = (b(opts.speaker)
                             or b(opts.microphone)) and impcheck("sound")
    server_features.av_sync = server_features.audio and b(opts.av_sync)
    server_features.fileprint = b(opts.printing) or b(opts.file_transfer)
    server_features.mmap = b(opts.mmap)
    server_features.input_devices = not opts.readonly and impcheck("keyboard")
    server_features.commands = impcheck("server.control_command")
    server_features.dbus = opts.dbus_proxy and impcheck("dbus")
    server_features.encoding = impcheck("codecs")
    server_features.logging = b(opts.remote_logging)
    #server_features.network_state   = ??
    server_features.display = opts.windows
    server_features.windows = opts.windows and impcheck("codecs")
    server_features.rfb = b(opts.rfb_upgrade) and impcheck("server.rfb")

    kill_dbus = None
    if shadowing:
        app = make_shadow_server()
    elif proxying:
        app = make_proxy_server()
    else:
        if not check_xvfb():
            return 1
        assert starting or starting_desktop or upgrading
        from xpra.x11.gtk_x11.gdk_display_source import init_gdk_display_source, close_gdk_display_source
        init_gdk_display_source()
        insert_cleanup(close_gdk_display_source)
        #(now we can access the X11 server)

        #make sure the pid we save is the real one:
        if not check_xvfb():
            return 1
        if xvfb_pid is not None:
            #save the new pid (we should have one):
            save_xvfb_pid(xvfb_pid)

        if POSIX:
            save_uinput_id(uinput_uuid)
            dbus_pid = -1
            dbus_env = {}
            if clobber:
                #get the saved pids and env
                dbus_pid = get_dbus_pid()
                dbus_env = get_dbus_env()
                log("retrieved existing dbus attributes")
            else:
                assert starting or starting_desktop
                if xvfb_pid is not None:
                    #save the new pid (we should have one):
                    save_xvfb_pid(xvfb_pid)
                bus_address = protected_env.get("DBUS_SESSION_BUS_ADDRESS")
                log("dbus_launch=%s, current DBUS_SESSION_BUS_ADDRESS=%s",
                    opts.dbus_launch, bus_address)
                if opts.dbus_launch and not bus_address:
                    #start a dbus server:
                    def kill_dbus():
                        log("kill_dbus: dbus_pid=%s" % dbus_pid)
                        if dbus_pid <= 0:
                            return
                        try:
                            os.kill(dbus_pid, signal.SIGINT)
                        except Exception as e:
                            log.warn(
                                "Warning: error trying to stop dbus with pid %i:",
                                dbus_pid)
                            log.warn(" %s", e)

                    add_cleanup(kill_dbus)
                    #this also updates os.environ with the dbus attributes:
                    dbus_pid, dbus_env = start_dbus(opts.dbus_launch)
                    if dbus_pid > 0:
                        save_dbus_pid(dbus_pid)
                    if dbus_env:
                        save_dbus_env(dbus_env)
            log("dbus attributes: pid=%s, env=%s", dbus_pid, dbus_env)
            if dbus_env:
                os.environ.update(dbus_env)
                os.environ.update(protected_env)

        if POSIX:
            #all unix domain sockets:
            ud_paths = [
                sockpath for (stype, _, sockpath), _ in local_sockets
                if stype == "unix-domain"
            ]
            if ud_paths:
                #choose one so our xdg-open override script can use to talk back to us:
                if opts.forward_xdg_open:
                    for x in ("/usr/libexec/xpra", "/usr/lib/xpra"):
                        xdg_override = os.path.join(x, "xdg-open")
                        if os.path.exists(xdg_override):
                            os.environ[
                                "PATH"] = x + os.pathsep + os.environ.get(
                                    "PATH", "")
                            os.environ[
                                "XPRA_XDG_OPEN_SERVER_SOCKET"] = ud_paths[0]
                            break
            else:
                log.warn("Warning: no local server sockets,")
                if opts.forward_xdg_open:
                    log.warn(" forward-xdg-open cannot be enabled")
                log.warn(" ssh connections will not be available")

        log("env=%s", os.environ)
        try:
            # This import is delayed because the module depends on gtk:
            from xpra.x11.bindings.window_bindings import X11WindowBindings
            X11Window = X11WindowBindings()
            if (starting or
                    starting_desktop) and not clobber and opts.resize_display:
                from xpra.x11.vfb_util import set_initial_resolution
                set_initial_resolution(starting_desktop)
        except ImportError as e:
            log.error(
                "Failed to load Xpra server components, check your installation: %s"
                % e)
            return 1
        if starting or upgrading:
            if not X11Window.displayHasXComposite():
                log.error(
                    "Xpra 'start' subcommand runs as a compositing manager")
                log.error(
                    " it cannot use a display which lacks the XComposite extension!"
                )
                return 1
            if starting:
                #check for an existing window manager:
                from xpra.x11.gtk_x11.wm_check import wm_check
                if not wm_check(display, opts.wm_name, upgrading):
                    return 1
            log("XShape=%s", X11Window.displayHasXShape())
            app = make_server(clobber)
        else:
            assert starting_desktop
            app = make_desktop_server()
        app.init_virtual_devices(devices)

    if proxying or upgrading:
        #when proxying or upgrading, don't exec any plain start commands:
        opts.start = opts.start_child = []
    elif opts.exit_with_children:
        assert opts.start_child, "exit-with-children was specified but start-child is missing!"
    elif opts.start_child:
        log.warn("Warning: the 'start-child' option is used,")
        log.warn(" but 'exit-with-children' is not enabled,")
        log.warn(" use 'start' instead")

    try:
        app._ssl_wrap_socket = wrap_socket_fn
        app.original_desktop_display = desktop_display
        app.exec_cwd = opts.chdir or cwd
        app.init(opts)
        app.setup()
    except InitException as e:
        log.error("xpra server initialization error:")
        log.error(" %s", e)
        return 1
    except Exception as e:
        log.error("Error: cannot start the %s server",
                  app.session_type,
                  exc_info=True)
        log.error(str(e))
        log.info("")
        return 1

    #publish mdns records:
    if opts.mdns:
        from xpra.platform.info import get_username
        from xpra.server.socket_util import mdns_publish
        mdns_info = {
            "display": display_name,
            "username": get_username(),
            "uuid": app.uuid,
            "platform": sys.platform,
            "type": app.session_type,
        }
        MDNS_EXPOSE_NAME = envbool("XPRA_MDNS_EXPOSE_NAME", True)
        if MDNS_EXPOSE_NAME and app.session_name:
            mdns_info["name"] = app.session_name
        for mode, listen_on in mdns_recs.items():
            mdns_publish(display_name, mode, listen_on, mdns_info)

    del opts

    log("%s(%s)", app.init_sockets, sockets)
    app.init_sockets(sockets)
    log("%s(%s)", app.init_when_ready, _when_ready)
    app.init_when_ready(_when_ready)

    try:
        #from here on, we own the vfb, even if we inherited one:
        if (starting or starting_desktop or upgrading) and clobber:
            #and it will be killed if exit cleanly:
            xvfb_pid = get_xvfb_pid()

        log("running %s", app.run)
        r = app.run()
        log("%s()=%s", app.run, r)
    except KeyboardInterrupt:
        log.info("stopping on KeyboardInterrupt")
        return 0
    except Exception:
        log.error("server error", exc_info=True)
        return -128
    else:
        if r > 0:
            # Upgrading/exiting, so leave X and dbus servers running
            if kill_display:
                _cleanups.remove(kill_display)
            if kill_dbus:
                _cleanups.remove(kill_dbus)
            from xpra.server import EXITING_CODE
            if r == EXITING_CODE:
                log.info("exiting: not cleaning up Xvfb")
            else:
                log.info("upgrading: not cleaning up Xvfb")
            r = 0
    return r