diff options
Diffstat (limited to 'src/leap/platform_init')
| -rw-r--r-- | src/leap/platform_init/initializers.py | 78 |
1 files changed, 77 insertions, 1 deletions
diff --git a/src/leap/platform_init/initializers.py b/src/leap/platform_init/initializers.py index ac08e23f..055c90a2 100644 --- a/src/leap/platform_init/initializers.py +++ b/src/leap/platform_init/initializers.py @@ -30,6 +30,10 @@ logger = logging.getLogger(__name__) 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()[platform.system() + "Initializer"] @@ -43,6 +47,10 @@ def init_platform(): 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' \ @@ -65,6 +73,10 @@ def _windows_has_tap_device(): 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")) @@ -73,7 +85,8 @@ def WindowsInitializer(): "proceed?")) msg.setInformativeText(msg.tr("Encrypted Internet uses VPN, which " "needs a TAP device installed and none " - "has been found")) + "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_() @@ -90,7 +103,70 @@ def WindowsInitializer(): inf_path = os.path.join(driver_path, "OemWin2k.inf") cmd = [dev_installer, "install", inf_path, "tap0901"] + # XXX should avoid shell expansion. 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") + + +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 = lambda: os.path.isdir("/System/Library/Extensions/tun.kext") + has_startup = lambda: 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 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 + """ + NOTFOUND_MSG = ("Tried to install tuntaposx kext, but the installer " + "is not found inside this bundle.") + BADEXEC_MSG = ("Tried to install tuntaposx kext, but the installer " + "failed to 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("LEAPClient 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.join(os.getcwd(), + "..", + "Resources", + "tuntap-installer.app") + if os.path.isdir(installer_path): + cmd = ["open %s" % (installer_path,)] + try: + # XXX should avoid shell expansion + ret = subprocess.call( + cmd, stdout=subprocess.PIPE, + shell=True) + except: + logger.error(BADEXEC_MSG) + else: + logger.error(NOTFOUND_MSG) |