diff options
| -rw-r--r-- | changes/feature-3209_check-outdated-polkit-file | 1 | ||||
| -rw-r--r-- | src/leap/platform_init/initializers.py | 42 | ||||
| -rw-r--r-- | src/leap/services/eip/vpnlaunchers.py | 44 | ||||
| -rw-r--r-- | src/leap/util/privilege_policies.py | 87 |
4 files changed, 124 insertions, 50 deletions
diff --git a/changes/feature-3209_check-outdated-polkit-file b/changes/feature-3209_check-outdated-polkit-file new file mode 100644 index 00000000..8cb7c35c --- /dev/null +++ b/changes/feature-3209_check-outdated-polkit-file @@ -0,0 +1 @@ + o Add check for outdated polkit file. Closes #3209. diff --git a/src/leap/platform_init/initializers.py b/src/leap/platform_init/initializers.py index d04daca6..3523c117 100644 --- a/src/leap/platform_init/initializers.py +++ b/src/leap/platform_init/initializers.py @@ -31,7 +31,7 @@ from PySide import QtGui from leap.config.leapsettings import LeapSettings from leap.services.eip import vpnlaunchers from leap.util import first -from leap.config.providerconfig import ProviderConfig +from leap.util import privilege_policies logger = logging.getLogger(__name__) @@ -331,36 +331,6 @@ def DarwinInitializer(): # # Linux initializers # - -POLICY_TEMPLATE = """<?xml version="1.0" encoding="UTF-8"?> -<!DOCTYPE policyconfig PUBLIC - "-//freedesktop//DTD PolicyKit Policy Configuration 1.0//EN" - "http://www.freedesktop.org/standards/PolicyKit/1/policyconfig.dtd"> -<policyconfig> - - <vendor>LEAP Project</vendor> - <vendor_url>http://leap.se/</vendor_url> - - <action id="net.openvpn.gui.leap.run-openvpn"> - <description>Runs the openvpn binary</description> - <description xml:lang="es">Ejecuta el binario openvpn</description> - <message>OpenVPN needs that you authenticate to start</message> - <message xml:lang="es"> - OpenVPN necesita autorizacion para comenzar - </message> - <icon_name>package-x-generic</icon_name> - <defaults> - <allow_any>yes</allow_any> - <allow_inactive>yes</allow_inactive> - <allow_active>yes</allow_active> - </defaults> - <annotate key="org.freedesktop.policykit.exec.path">{path}</annotate> - <annotate key="org.freedesktop.policykit.exec.allow_gui">true</annotate> - </action> -</policyconfig> -""" - - def _linux_install_missing_scripts(badexec, notfound): """ Tries to install the missing up/down scripts. @@ -381,14 +351,8 @@ def _linux_install_missing_scripts(badexec, notfound): fd, tempscript = tempfile.mkstemp(prefix="leap_installer-") polfd, pol_tempfile = tempfile.mkstemp(prefix="leap_installer-") try: - # We need to do the config/../apps/openvpn otherwise the - # policy file won't work - openvpn_path = os.path.join( - ProviderConfig().get_path_prefix(), - "..", "apps", "eip", - launcher.OPENVPN_BIN) - - policy_contents = POLICY_TEMPLATE.format(path=openvpn_path) + path = launcher.OPENVPN_BIN_PATH + policy_contents = privilege_policies.get_policy_contents(path) with os.fdopen(polfd, 'w') as f: f.write(policy_contents) diff --git a/src/leap/services/eip/vpnlaunchers.py b/src/leap/services/eip/vpnlaunchers.py index 8522d1df..b591b3ca 100644 --- a/src/leap/services/eip/vpnlaunchers.py +++ b/src/leap/services/eip/vpnlaunchers.py @@ -38,6 +38,8 @@ from leap.common.files import which from leap.config.providerconfig import ProviderConfig from leap.services.eip.eipconfig import EIPConfig, VPNGatewaySelector from leap.util import first +from leap.util.privilege_policies import LinuxPolicyChecker +from leap.util import privilege_policies logger = logging.getLogger(__name__) @@ -62,7 +64,7 @@ class EIPNoTunKextLoaded(VPNLauncherException): pass -class VPNLauncher: +class VPNLauncher(object): """ Abstract launcher class """ @@ -237,6 +239,10 @@ class LinuxVPNLauncher(VPNLauncher): PKEXEC_BIN = 'pkexec' OPENVPN_BIN = 'openvpn' + OPENVPN_BIN_PATH = os.path.join( + ProviderConfig().get_path_prefix(), + "..", "apps", "eip", OPENVPN_BIN) + SYSTEM_CONFIG = "/etc/leap" UP_DOWN_FILE = "resolv-update" UP_DOWN_PATH = "%s/%s" % (SYSTEM_CONFIG, UP_DOWN_FILE) @@ -250,12 +256,26 @@ class LinuxVPNLauncher(VPNLauncher): OPENVPN_DOWN_ROOT_BASE, OPENVPN_DOWN_ROOT_FILE) - POLKIT_BASE = "/usr/share/polkit-1/actions" - POLKIT_FILE = "net.openvpn.gui.leap.policy" - POLKIT_PATH = "%s/%s" % (POLKIT_BASE, POLKIT_FILE) - UPDOWN_FILES = (UP_DOWN_PATH,) - OTHER_FILES = (POLKIT_PATH,) + POLKIT_PATH = LinuxPolicyChecker.get_polkit_path() + OTHER_FILES = (POLKIT_PATH, ) + + def missing_other_files(self): + """ + 'Extend' the VPNLauncher's missing_other_files to check if the polkit + files is outdated. If the polkit file that is in OTHER_FILES exists but + is not up to date, it is added to the missing list. + + :returns: a list of missing files + :rtype: list of str + """ + missing = VPNLauncher.missing_other_files.im_func(self) + polkit_file = LinuxPolicyChecker.get_polkit_path() + if polkit_file not in missing: + if privilege_policies.is_policy_outdated(self.OPENVPN_BIN_PATH): + missing.append(polkit_file) + + return missing @classmethod def cmd_for_missing_scripts(kls, frompath, pol_file): @@ -271,11 +291,13 @@ class LinuxVPNLauncher(VPNLauncher): :rtype: str """ to = kls.SYSTEM_CONFIG - cmd = "#!/bin/sh\nset -e\nmkdir -p %s\n" - cmd = (cmd + "cp %s/%s %s\ncp \"%s\" \"%s\"") % ( - to, - frompath, kls.UP_DOWN_FILE, to, - pol_file, kls.POLKIT_PATH) + + cmd = '#!/bin/sh\nset -e\n' + cmd += 'mkdir -p "%s"\n' % (to, ) + cmd += 'cp "%s/%s" "%s"\n' % (frompath, kls.UP_DOWN_FILE, to) + cmd += 'cp "%s" "%s"\n' % (pol_file, kls.POLKIT_PATH) + cmd += 'chmod 644 "%s"\n' % (kls.POLKIT_PATH, ) + return cmd @classmethod diff --git a/src/leap/util/privilege_policies.py b/src/leap/util/privilege_policies.py index 10224bcd..72442553 100644 --- a/src/leap/util/privilege_policies.py +++ b/src/leap/util/privilege_policies.py @@ -27,6 +27,35 @@ from abc import ABCMeta, abstractmethod logger = logging.getLogger(__name__) +POLICY_TEMPLATE = """<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE policyconfig PUBLIC + "-//freedesktop//DTD PolicyKit Policy Configuration 1.0//EN" + "http://www.freedesktop.org/standards/PolicyKit/1/policyconfig.dtd"> +<policyconfig> + + <vendor>LEAP Project</vendor> + <vendor_url>https://leap.se/</vendor_url> + + <action id="net.openvpn.gui.leap.run-openvpn"> + <description>Runs the openvpn binary</description> + <description xml:lang="es">Ejecuta el binario openvpn</description> + <message>OpenVPN needs that you authenticate to start</message> + <message xml:lang="es"> + OpenVPN necesita autorizacion para comenzar + </message> + <icon_name>package-x-generic</icon_name> + <defaults> + <allow_any>yes</allow_any> + <allow_inactive>yes</allow_inactive> + <allow_active>yes</allow_active> + </defaults> + <annotate key="org.freedesktop.policykit.exec.path">{path}</annotate> + <annotate key="org.freedesktop.policykit.exec.allow_gui">true</annotate> + </action> +</policyconfig> +""" + + def is_missing_policy_permissions(): """ Returns True if we do not have implemented a policy checker for this @@ -47,6 +76,36 @@ def is_missing_policy_permissions(): return policy_checker().is_missing_policy_permissions() +def get_policy_contents(openvpn_path): + """ + Returns the contents that the policy file should have. + + :param openvpn_path: the openvpn path to use in the polkit file + :type openvpn_path: str + :rtype: str + """ + return POLICY_TEMPLATE.format(path=openvpn_path) + + +def is_policy_outdated(path): + """ + Returns if the existing polkit file is outdated, comparing if the path + is correct. + + :param path: the path that should have the polkit file. + :type path: str. + :rtype: bool + """ + _system = platform.system() + platform_checker = _system + "PolicyChecker" + policy_checker = globals().get(platform_checker, None) + if policy_checker is None: + logger.debug("we could not find a policy checker implementation " + "for %s" % (_system,)) + return False + return policy_checker().is_outdated(path) + + class PolicyChecker: """ Abstract PolicyChecker class @@ -72,6 +131,15 @@ class LinuxPolicyChecker(PolicyChecker): LINUX_POLKIT_FILE = ("/usr/share/polkit-1/actions/" "net.openvpn.gui.leap.policy") + @classmethod + def get_polkit_path(self): + """ + Returns the polkit file path. + + :rtype: str + """ + return self.LINUX_POLKIT_FILE + def is_missing_policy_permissions(self): """ Returns True if we could not find the appropriate policykit file @@ -80,3 +148,22 @@ class LinuxPolicyChecker(PolicyChecker): :rtype: bool """ return not os.path.isfile(self.LINUX_POLKIT_FILE) + + def is_outdated(self, path): + """ + Returns if the existing polkit file is outdated, comparing if the path + is correct. + + :param path: the path that should have the polkit file. + :type path: str. + :rtype: bool + """ + polkit = None + try: + with open(self.LINUX_POLKIT_FILE) as f: + polkit = f.read() + except IOError, e: + logger.error("Error reading polkit file(%s): %r" % ( + self.LINUX_POLKIT_FILE, e)) + + return get_policy_contents(path) != polkit |