move everything into bitmask namespace

3 files changed, 0 insertions, 842 deletions

diff --git a/src/leap/platform_init/__init__.py b/src/leap/platform_init/__init__.py
deleted file mode 100644
index 2a262a30..00000000
--- a/src/leap/platform_init/__init__.py
+++ /dev/null
@@ -1,28 +0,0 @@
-# -*- coding: utf-8 -*-
-# __init__.py
-# Copyright (C) 2013 LEAP
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-"""
-System constants
-"""
-import platform
-
-_system = platform.system()
-
-IS_WIN = True if _system == "Windows" else False
-IS_MAC = True if _system == "Darwin" else False
-IS_LINUX = True if _system == "Linux" else False
-IS_UNIX = IS_MAC or IS_LINUX
diff --git a/src/leap/platform_init/initializers.py b/src/leap/platform_init/initializers.py
deleted file mode 100644
index 46488250..00000000
--- a/src/leap/platform_init/initializers.py
+++ /dev/null
@@ -1,409 +0,0 @@
-# -*- coding: utf-8 -*-
-# initializers.py
-# Copyright (C) 2013 LEAP
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-"""
-Platform dependant initializing code
-"""
-
-import logging
-import os
-import platform
-import stat
-import subprocess
-import tempfile
-
-from PySide import QtGui
-
-from leap.config.leapsettings import LeapSettings
-from leap.services.eip import vpnlaunchers
-from leap.util import first
-from leap.util import privilege_policies
-
-
-logger = logging.getLogger(__name__)
-
-# NOTE we could use a deferToThread here, but should
-# be aware of this bug: http://www.themacaque.com/?p=1067
-
-__all__ = ["init_platform"]
-
-_system = platform.system()
-
-
-def init_platform():
-    """
-    Returns the right initializer for the platform we are running in, or
-    None if no proper initializer is found
-    """
-    initializer = None
-    try:
-        initializer = globals()[_system + "Initializer"]
-    except:
-        pass
-    if initializer:
-        logger.debug("Running initializer for %s" % (platform.system(),))
-        initializer()
-    else:
-        logger.debug("Initializer not found for %s" % (platform.system(),))
-
-
-#
-# common utils
-#
-
-NOTFOUND_MSG = ("Tried to install %s, but %s "
-                "not found inside this bundle.")
-BADEXEC_MSG = ("Tried to install %s, but %s "
-               "failed to %s.")
-
-UPDOWN_NOTFOUND_MSG = NOTFOUND_MSG % (
-    "updown scripts", "those were")
-UPDOWN_BADEXEC_MSG = BADEXEC_MSG % (
-    "updown scripts", "they", "be copied")
-
-
-def get_missing_updown_dialog():
-    """
-    Creates a dialog for notifying of missing updown scripts.
-    Returns that dialog.
-
-    :rtype: QtGui.QMessageBox instance
-    """
-    WE_NEED_POWERS = ("To better protect your privacy, "
-                      "Bitmask needs administrative privileges "
-                      "to install helper files. "
-                      "Do you want to proceed?")
-    msg = QtGui.QMessageBox()
-    msg.setWindowTitle(msg.tr("Missing up/down scripts"))
-    msg.setText(msg.tr(WE_NEED_POWERS))
-    # but maybe the user really deserve to know more
-    #msg.setInformativeText(msg.tr(BECAUSE))
-    msg.setStandardButtons(QtGui.QMessageBox.Yes | QtGui.QMessageBox.No)
-    msg.addButton("No, don't ask again", QtGui.QMessageBox.RejectRole)
-    msg.setDefaultButton(QtGui.QMessageBox.Yes)
-    return msg
-
-
-def check_missing():
-    """
-    Checks for the need of installing missing scripts, and
-    raises a dialog to ask user for permission to do it.
-    """
-    config = LeapSettings()
-    alert_missing = config.get_alert_missing_scripts()
-
-    launcher = vpnlaunchers.get_platform_launcher()
-    missing_scripts = launcher.missing_updown_scripts
-    missing_other = launcher.missing_other_files
-
-    if alert_missing and (missing_scripts() or missing_other()):
-        msg = get_missing_updown_dialog()
-        ret = msg.exec_()
-
-        if ret == QtGui.QMessageBox.Yes:
-            install_missing_fun = globals().get(
-                "_%s_install_missing_scripts" % (_system.lower(),),
-                None)
-            if not install_missing_fun:
-                logger.warning(
-                    "Installer not found for platform %s." % (_system,))
-                return
-
-            # XXX maybe move constants to fun
-            ok = install_missing_fun(UPDOWN_BADEXEC_MSG, UPDOWN_NOTFOUND_MSG)
-            if not ok:
-                msg = QtGui.QMessageBox()
-                msg.setWindowTitle(msg.tr("Problem installing files"))
-                msg.setText(msg.tr('Some of the files could not be copied.'))
-                msg.setIcon(QtGui.QMessageBox.Warning)
-                msg.exec_()
-
-        elif ret == QtGui.QMessageBox.No:
-            logger.debug("Not installing missing scripts, "
-                         "user decided to ignore our warning.")
-
-        elif ret == QtGui.QMessageBox.Rejected:
-            logger.debug(
-                "Setting alert_missing_scripts to False, we will not "
-                "ask again")
-            config.set_alert_missing_scripts(False)
-#
-# windows initializers
-#
-
-
-def _windows_has_tap_device():
-    """
-    Loops over the windows registry trying to find if the tap0901 tap driver
-    has been installed on this machine.
-    """
-    import _winreg as reg
-
-    adapter_key = 'SYSTEM\CurrentControlSet\Control\Class' \
-        '\{4D36E972-E325-11CE-BFC1-08002BE10318}'
-    with reg.OpenKey(reg.HKEY_LOCAL_MACHINE, adapter_key) as adapters:
-        try:
-            for i in xrange(10000):
-                key_name = reg.EnumKey(adapters, i)
-                with reg.OpenKey(adapters, key_name) as adapter:
-                    try:
-                        component_id = reg.QueryValueEx(adapter,
-                                                        'ComponentId')[0]
-                        if component_id.startswith("tap0901"):
-                            return True
-                    except WindowsError:
-                        pass
-        except WindowsError:
-            pass
-    return False
-
-
-def WindowsInitializer():
-    """
-    Raises a dialog in case that the windows tap driver has not been found
-    in the registry, asking the user for permission to install the driver
-    """
-    if not _windows_has_tap_device():
-        msg = QtGui.QMessageBox()
-        msg.setWindowTitle(msg.tr("TAP Driver"))
-        msg.setText(msg.tr("Bitmask needs to install the necessary drivers "
-                           "for Encrypted Internet to work. Would you like to "
-                           "proceed?"))
-        msg.setInformativeText(msg.tr("Encrypted Internet uses VPN, which "
-                                      "needs a TAP device installed and none "
-                                      "has been found. This will ask for "
-                                      "administrative privileges."))
-        msg.setStandardButtons(QtGui.QMessageBox.Yes | QtGui.QMessageBox.No)
-        msg.setDefaultButton(QtGui.QMessageBox.Yes)
-        ret = msg.exec_()
-
-        if ret == QtGui.QMessageBox.Yes:
-            # XXX should do this only if executed inside bundle.
-            # Let's assume it's the only way it's gonna be executed under win
-            # by now.
-            driver_path = os.path.join(os.getcwd(),
-                                       "apps",
-                                       "eip",
-                                       "tap_driver")
-            dev_installer = os.path.join(driver_path,
-                                         "devcon.exe")
-            if os.path.isfile(dev_installer) and \
-                    stat.S_IXUSR & os.stat(dev_installer)[stat.ST_MODE] != 0:
-                inf_path = os.path.join(driver_path,
-                                        "OemWin2k.inf")
-                cmd = [dev_installer, "install", inf_path, "tap0901"]
-                ret = subprocess.call(cmd, stdout=subprocess.PIPE, shell=True)
-            else:
-                logger.error("Tried to install TAP driver, but the installer "
-                             "is not found or not executable")
-
-#
-# Darwin initializer functions
-#
-
-
-def _darwin_has_tun_kext():
-    """
-    Returns True only if we found a directory under the system kext folder
-    containing a kext named tun.kext, AND we found a startup item named 'tun'
-    """
-    # XXX we should be smarter here and use kextstats output.
-
-    has_kext = os.path.isdir("/System/Library/Extensions/tun.kext")
-    has_startup = os.path.isdir("/System/Library/StartupItems/tun")
-    has_tun_and_startup = has_kext and has_startup
-    logger.debug(
-        'platform initializer check: has tun_and_startup = %s' %
-        (has_tun_and_startup,))
-    return has_tun_and_startup
-
-
-def _darwin_install_missing_scripts(badexec, notfound):
-    """
-    Tries to install the missing up/down scripts.
-
-    :param badexec: error for notifying execution error during command.
-    :type badexec: str
-    :param notfound: error for notifying missing path.
-    :type notfound: str
-    :returns: True if the files could be copied successfully.
-    :rtype: bool
-    """
-    # We expect to execute this from some way of bundle, since
-    # the up/down scripts should be put in place by the installer.
-    success = False
-    installer_path = os.path.join(
-        os.getcwd(),
-        "..",
-        "Resources",
-        "openvpn")
-    launcher = vpnlaunchers.DarwinVPNLauncher
-
-    if os.path.isdir(installer_path):
-        fd, tempscript = tempfile.mkstemp(prefix="leap_installer-")
-        try:
-            scriptlines = launcher.cmd_for_missing_scripts(installer_path)
-            with os.fdopen(fd, 'w') as f:
-                f.write(scriptlines)
-            st = os.stat(tempscript)
-            os.chmod(tempscript, st.st_mode | stat.S_IEXEC | stat.S_IXUSR |
-                     stat.S_IXGRP | stat.S_IXOTH)
-
-            cmd, args = launcher().get_cocoasudo_installmissing_cmd()
-            args.append(tempscript)
-            cmdline = " ".join([cmd] + args)
-            ret = subprocess.call(
-                cmdline, stdout=subprocess.PIPE,
-                shell=True)
-            success = ret == 0
-            if not success:
-                logger.error("Install missing scripts failed.")
-        except Exception as exc:
-            logger.error(badexec)
-            logger.error("Error was: %r" % (exc,))
-        finally:
-            try:
-                os.remove(tempscript)
-            except OSError as exc:
-                logger.error("%r" % (exc,))
-    else:
-        logger.error(notfound)
-        logger.debug('path searched: %s' % (installer_path,))
-
-    return success
-
-
-def DarwinInitializer():
-    """
-    Raises a dialog in case that the osx tuntap driver has not been found
-    in the registry, asking the user for permission to install the driver
-    """
-    # XXX split this function into several
-
-    TUNTAP_NOTFOUND_MSG = NOTFOUND_MSG % (
-        "tuntaposx kext", "the installer")
-    TUNTAP_BADEXEC_MSG = BADEXEC_MSG % (
-        "tuntaposx kext", "the installer", "be launched")
-
-    # TODO DRY this with other cases, and
-    # factor out to _should_install() function.
-    # Leave the dialog as a more generic thing.
-
-    if not _darwin_has_tun_kext():
-        msg = QtGui.QMessageBox()
-        msg.setWindowTitle(msg.tr("TUN Driver"))
-        msg.setText(msg.tr("Bitmask needs to install the necessary drivers "
-                           "for Encrypted Internet to work. Would you like to "
-                           "proceed?"))
-        msg.setInformativeText(msg.tr("Encrypted Internet uses VPN, which "
-                                      "needs a kernel extension for a TUN "
-                                      "device installed, and none "
-                                      "has been found. This will ask for "
-                                      "administrative privileges."))
-        msg.setStandardButtons(QtGui.QMessageBox.Yes | QtGui.QMessageBox.No)
-        msg.setDefaultButton(QtGui.QMessageBox.Yes)
-        ret = msg.exec_()
-
-        if ret == QtGui.QMessageBox.Yes:
-            installer_path = os.path.abspath(
-                os.path.join(
-                    os.getcwd(),
-                    "..",
-                    "Resources",
-                    "tuntap-installer.app"))
-            if os.path.isdir(installer_path):
-                cmd = ["open '%s'" % (installer_path,)]
-                try:
-                    ret = subprocess.call(
-                        cmd, stdout=subprocess.PIPE,
-                        shell=True)
-                except:
-                    logger.error(TUNTAP_BADEXEC_MSG)
-            else:
-                logger.error(TUNTAP_NOTFOUND_MSG)
-
-    # Second check, for missing scripts.
-    check_missing()
-
-
-#
-# Linux initializers
-#
-def _linux_install_missing_scripts(badexec, notfound):
-    """
-    Tries to install the missing up/down scripts.
-
-    :param badexec: error for notifying execution error during command.
-    :type badexec: str
-    :param notfound: error for notifying missing path.
-    :type notfound: str
-    :returns: True if the files could be copied successfully.
-    :rtype: bool
-    """
-    success = False
-    installer_path = os.path.join(os.getcwd(), "apps", "eip", "files")
-    launcher = vpnlaunchers.LinuxVPNLauncher
-
-    # XXX refactor with darwin, same block.
-
-    if os.path.isdir(installer_path):
-        fd, tempscript = tempfile.mkstemp(prefix="leap_installer-")
-        polfd, pol_tempfile = tempfile.mkstemp(prefix="leap_installer-")
-        try:
-            path = launcher.OPENVPN_BIN_PATH
-            policy_contents = privilege_policies.get_policy_contents(path)
-
-            with os.fdopen(polfd, 'w') as f:
-                f.write(policy_contents)
-
-            pkexec = first(launcher.maybe_pkexec())
-            scriptlines = launcher.cmd_for_missing_scripts(installer_path,
-                                                           pol_tempfile)
-            with os.fdopen(fd, 'w') as f:
-                f.write(scriptlines)
-
-            st = os.stat(tempscript)
-            os.chmod(tempscript, st.st_mode | stat.S_IEXEC | stat.S_IXUSR |
-                     stat.S_IXGRP | stat.S_IXOTH)
-            cmdline = ["%s %s" % (pkexec, tempscript)]
-            ret = subprocess.call(
-                cmdline, stdout=subprocess.PIPE,
-                shell=True)
-            success = ret == 0
-            if not success:
-                logger.error("Install missing scripts failed.")
-        except Exception as exc:
-            logger.error(badexec)
-            logger.error("Error was: %r" % (exc,))
-        finally:
-            try:
-                os.remove(tempscript)
-            except OSError as exc:
-                logger.error("%r" % (exc,))
-    else:
-        logger.error(notfound)
-        logger.debug('path searched: %s' % (installer_path,))
-
-    return success
-
-
-def LinuxInitializer():
-    """
-    Raises a dialog in case that either updown scripts or policykit file
-    are missing or they have incorrect permissions.
-    """
-    check_missing()
diff --git a/src/leap/platform_init/locks.py b/src/leap/platform_init/locks.py
deleted file mode 100644
index 39b18648..00000000
--- a/src/leap/platform_init/locks.py
+++ /dev/null
@@ -1,405 +0,0 @@
-# -*- coding: utf-8 -*-
-# locks.py
-# Copyright (C) 2013 LEAP
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-"""
-Utilities for handling multi-platform file locking mechanisms
-"""
-import logging
-import errno
-import os
-import platform
-
-from leap.common.events import signal as signal_event
-from leap.common.events import events_pb2 as proto
-from leap import platform_init
-
-if platform_init.IS_UNIX:
-    from fcntl import flock, LOCK_EX, LOCK_NB
-else:  # WINDOWS
-    import datetime
-    import glob
-    import shutil
-    import time
-
-    from tempfile import gettempdir
-
-    from leap.util import get_modification_ts, update_modification_ts
-
-logger = logging.getLogger(__name__)
-
-if platform_init.IS_UNIX:
-
-    class UnixLock(object):
-        """
-        Uses flock to get an exclusive lock over a file.
-        See man 2 flock
-        """
-
-        def __init__(self, path):
-            """
-            iniializes t he UnixLock with the path of the
-            desired lockfile
-            """
-
-            self._fd = None
-            self.path = path
-
-        def get_lock(self):
-            """
-            Tries to get a lock, and writes the running pid there if successful
-            """
-            gotit, pid = self._get_lock_and_pid()
-            return gotit
-
-        def get_pid(self):
-            """
-            Returns the pid of the locking process
-            """
-            gotit, pid = self._get_lock_and_pid()
-            return pid
-
-        def _get_lock(self):
-            """
-            Tries to get a lock, returning True if successful
-
-            :rtype: bool
-            """
-            self._fd = os.open(self.path, os.O_CREAT | os.O_RDWR)
-
-            try:
-                flock(self._fd, LOCK_EX | LOCK_NB)
-            except IOError as exc:
-                # could not get the lock
-                #import ipdb; ipdb.set_trace()
-
-                if exc.args[0] in (errno.EDEADLK, errno.EAGAIN):
-                    # errno 11 or 35
-                    # Resource temporarily unavailable
-                    return False
-                else:
-                    raise
-            return True
-
-        @property
-        def locked_by_us(self):
-            """
-            Returns True if the pid in the pidfile
-            is ours.
-
-            :rtype: bool
-            """
-            gotit, pid = self._get_lock_and_pid()
-            return pid == os.getpid()
-
-        def _get_lock_and_pid(self):
-            """
-            Tries to get a lock over the file.
-            Returns (locked, pid) tuple.
-
-            :rtype: tuple
-            """
-
-            if self._get_lock():
-                self._write_to_pidfile()
-                return True, None
-
-            return False, self._read_from_pidfile()
-
-        def _read_from_pidfile(self):
-            """
-            Tries to read pid from the pidfile,
-            returns False if no content found.
-            """
-
-            pidfile = os.read(
-                self._fd, 16)
-            if not pidfile:
-                return False
-
-            try:
-                return int(pidfile.strip())
-            except Exception as exc:
-                exc.args += (pidfile, self.lock_file)
-                raise
-
-        def _write_to_pidfile(self):
-            """
-            Writes the pid of the running process
-            to the pidfile
-            """
-            fd = self._fd
-            os.ftruncate(fd, 0)
-            os.write(fd, '%d\n' % os.getpid())
-            os.fsync(fd)
-
-
-if platform_init.IS_WIN:
-
-    # Time to wait (in secs) before assuming a raise window signal has not been
-    # ack-ed.
-
-    RAISE_WINDOW_TIMEOUT = 2
-
-    # How many steps to do while checking lockfile ts update.
-
-    RAISE_WINDOW_WAIT_STEPS = 10
-
-    def _release_lock(name):
-        """
-        Tries to remove a folder path.
-
-        :param name: folder lock to remove
-        :type name: str
-        """
-        try:
-            shutil.rmtree(name)
-            return True
-        except WindowsError as exc:
-            if exc.errno in (errno.EPIPE, errno.ENOENT,
-                             errno.ESRCH, errno.EACCES):
-                logger.warning(
-                    'exception while trying to remove the lockfile dir')
-                logger.warning('errno %s: %s' % (exc.errno, exc.args[1]))
-                # path does not exist
-                return False
-            else:
-                logger.debug('errno = %s' % (exc.errno,))
-                # we did not foresee this error, better add it explicitely
-                raise
-
-    class WindowsLock(object):
-        """
-        Creates a lock based on the atomic nature of mkdir on Windows
-        system calls.
-        """
-        LOCKBASE = os.path.join(gettempdir(), "leap-client-lock")
-
-        def __init__(self):
-            """
-            Initializes the lock.
-            Sets the lock name to basename plus the process pid.
-            """
-            self._fd = None
-            pid = os.getpid()
-            self.name = "%s-%s" % (self.LOCKBASE, pid)
-            self.pid = pid
-
-        def get_lock(self):
-            """
-            Tries to get a lock, and writes the running pid there if successful
-            """
-            gotit = self._get_lock()
-            return gotit
-
-        def _get_lock(self):
-            """
-            Tries to write to a file with the current pid as part of the name
-            """
-            try:
-                self._fd = os.makedirs(self.name)
-            except OSError as exc:
-                # could not create the dir
-                if exc.args[0] == 183:
-                    logger.debug('cannot create dir')
-                    # cannot create dir with existing name
-                    return False
-                else:
-                    raise
-            return self._is_one_pidfile()[0]
-
-        def _is_one_pidfile(self):
-            """
-            Returns True, pid if there is only one pidfile with the expected
-            base path
-
-            :rtype: tuple
-            """
-            pidfiles = glob.glob(self.LOCKBASE + '-*')
-            if len(pidfiles) == 1:
-                pid = pidfiles[0].split('-')[-1]
-                return True, int(pid)
-            else:
-                return False, None
-
-        def get_pid(self):
-            """
-            Returns the pid of the locking process.
-
-            :rtype: int
-            """
-            # XXX assert there is only one?
-            _, pid = self._is_one_pidfile()
-            return pid
-
-        def get_locking_path(self):
-            """
-            Returns the pid path of the locking process.
-
-            :rtype: str
-            """
-            pid = self.get_pid()
-            if pid:
-                return "%s-%s" % (self.LOCKBASE, pid)
-
-        def release_lock(self, name=None):
-            """
-            Releases the pidfile dir for this process, by removing it.
-            """
-            if not name:
-                name = self.name
-            _release_lock(name)
-
-        @classmethod
-        def release_all_locks(self):
-            """
-            Releases all locks. Used for clean shutdown.
-            """
-            for lockdir in glob.glob("%s-%s" % (self.LOCKBASE, '*')):
-                _release_lock(lockdir)
-
-        @property
-        def locked_by_us(self):
-            """
-            Returns True if the pid in the pidfile
-            is ours.
-
-            :rtype: bool
-            """
-            _, pid = self._is_one_pidfile()
-            return pid == self.pid
-
-        def update_ts(self):
-            """
-            Updates the timestamp of the lock.
-            """
-            if self.locked_by_us:
-                update_modification_ts(self.name)
-
-        def write_port(self, port):
-            """
-            Writes the port for windows control to the pidfile folder
-            Returns True if successful.
-
-            :rtype: bool
-            """
-            if not self.locked_by_us:
-                logger.warning("Tried to write control port to a "
-                               "non-unique pidfile folder")
-                return False
-            port_file = os.path.join(self.name, "port")
-            with open(port_file, 'w') as f:
-                f.write("%s" % port)
-            return True
-
-        def get_control_port(self):
-            """
-            Reads control port of the main instance from the port file
-            in the pidfile dir
-
-            :rtype: int
-            """
-            pid = self.get_pid()
-            port_file = os.path.join(self.LOCKBASE + "-%s" % pid, "port")
-            port = None
-            try:
-                with open(port_file) as f:
-                    port_str = f.read()
-                    port = int(port_str.strip())
-            except IOError as exc:
-                if exc.errno == errno.ENOENT:
-                    logger.error("Tried to read port from non-existent file")
-                else:
-                    # we did not know explicitely about this error
-                    raise
-            return port
-
-    def raise_window_ack():
-        """
-        This function is called from the windows callback that is registered
-        with the raise_window event. It just updates the modification time
-        of the lock file so we can signal an ack to the instance that tried
-        to raise the window.
-        """
-        lock = WindowsLock()
-        lock.update_ts()
-
-
-def we_are_the_one_and_only():
-    """
-    Returns True if we are the only instance running, False otherwise.
-    If we came later, send a raise signal to the main instance of the
-    application.
-
-    Under windows we are not using flock magic, so we wait during
-    RAISE_WINDOW_TIMEOUT time, if not ack is
-    received, we assume it was a stalled lock, so we remove it and continue
-    with initialization.
-
-    :rtype: bool
-    """
-    _sys = platform.system()
-
-    if _sys in ("Linux", "Darwin"):
-        locker = UnixLock('/tmp/leap-client.lock')
-        locker.get_lock()
-        we_are_the_one = locker.locked_by_us
-        if not we_are_the_one:
-            signal_event(proto.RAISE_WINDOW)
-        return we_are_the_one
-
-    elif _sys == "Windows":
-        locker = WindowsLock()
-        locker.get_lock()
-        we_are_the_one = locker.locked_by_us
-
-        if not we_are_the_one:
-            locker.release_lock()
-        lock_path = locker.get_locking_path()
-        ts = get_modification_ts(lock_path)
-
-        nowfun = datetime.datetime.now
-        t0 = nowfun()
-        pause = RAISE_WINDOW_TIMEOUT / float(RAISE_WINDOW_WAIT_STEPS)
-        timeout_delta = datetime.timedelta(0, RAISE_WINDOW_TIMEOUT)
-        check_interval = lambda: nowfun() - t0 < timeout_delta
-
-        # let's assume it's a stalled lock
-        we_are_the_one = True
-        signal_event(proto.RAISE_WINDOW)
-
-        while check_interval():
-            if get_modification_ts(lock_path) > ts:
-                # yay! someone claimed their control over the lock.
-                # so the lock is alive
-                logger.debug('Raise window ACK-ed')
-                we_are_the_one = False
-                break
-            else:
-                time.sleep(pause)
-
-        if we_are_the_one:
-            # ok, it really was a stalled lock. let's remove all
-            # that is left, and put only ours there.
-            WindowsLock.release_all_locks()
-            WindowsLock().get_lock()
-
-        return we_are_the_one
-
-    else:
-        logger.warning("Multi-instance checker "
-                       "not implemented for %s" % (_sys))
-        # lies, lies, lies...
-        return True