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Merged with Harald Hoyer's Python binding

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1 parent 919cd34 commit d8aebd251d2cae5292db8ead3f95da2979d812c9 Bahadır Kandemir committed May 17, 2008
Showing with 380 additions and 391 deletions.
  1. +3 −0 AUTHORS
  2. +31 −345 COPYING
  3. +4 −0 MANIFEST.in
  4. +115 −0 polkit.py
  5. +166 −12 pypolkit.c
  6. +47 −4 setup.py
  7. +0 −30 test.py
  8. +14 −0 test_pksimple.py
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3 AUTHORS
@@ -0,0 +1,3 @@
+ PolicyKit by David Zeuthen, <david@fubar.dk>
+ Python Bindings by Bahadır Kandemir <bahadir@pardus.org.tr>
+ Harald Hoyer <harald@redhat.com>
View
376 COPYING
@@ -1,346 +1,32 @@
-NOTE! The GPL below is copyrighted by the Free Software Foundation, but
-the instance of code that it refers to (the kde programs) are copyrighted
-by the authors who actually wrote it.
+Copyright (c) 2008, TUBITAK/UEKAE, Harald Hoyer.
+All Rights Reserved.
+
+The PolicyKit python binding source code is licensed
+under the MIT/X11 license. The license is included below.
+
+-- BEGIN MIT/X11 License ---
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated
+documentation files (the "Software"), to deal in the
+Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute,
+sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall
+be included in all copies or substantial portions of the
+Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
+WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
+PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
+BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+-- END MIT/X11 License ---
----------------------------------------------------------------------------
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View
4 MANIFEST.in
@@ -0,0 +1,4 @@
+include COPYING
+include AUTHORS
+include test.py
+test_pksimple.py
View
115 polkit.py
@@ -0,0 +1,115 @@
+import _polkit
+
+def action_list():
+ """
+ Lists all actions defined in .policy files.
+
+ returns :
+ A list of action_ids
+ """
+ return _polkit.action_list()
+
+def action_info(action_id):
+ """
+ Gives all actions defined in .policy files.
+
+ action_id :
+ Action ID to get details about.
+
+ returns :
+ A dictionary with description, message, vendor, vendor
+ url, icon and annotations fields.
+ """
+ return _polkit.action_info(action_id)
+
+def check_auth(pid, *args):
+ """
+ This function is similar to polkit_check_authv(),
+ but takes the action_ids as a plain parameter list.
+ """
+ return check_authv(pid, args)
+
+def check_authv(pid, action_ids):
+ """
+ A simple convenience function to check whether a given
+ process is authorized for a number of actions.
+
+ This is useful for programs that just wants to check whether
+ they should carry out some action. Note that the user identity
+ used for the purpose of checking authorizations is the Real
+ one compared to the e.g. Effective one (e.g. getuid(), getgid()
+ is used instead of e.g. geteuid(), getegid()). This is typically
+ what one wants in a setuid root program if the setuid root program
+ is designed to do work on behalf of the unprivileged user who
+ invoked it (for example, the PulseAudio sound server is setuid
+ root only so it can become a real time process; after that it
+ drops all privileges).
+
+ It varies whether one wants to pass getpid() or getppid() as
+ the process id to this function. For example, in the PulseAudio
+ case it is the right thing to pass getpid(). However, in a setup
+ where the process is a privileged helper, one wants to pass the
+ process id of the parent. Beware though, if the parent dies, getppid()
+ will return 1 (the process id of /sbin/init) which is almost
+ certainly guaranteed to be privileged as it is running as uid 0.
+
+ Note that this function will open a connection to the system
+ message bus and query ConsoleKit for details. In addition, it
+ will load PolicyKit specific files and spawn privileged helpers
+ if necessary. As such, there is a bit of IPC, context switching,
+ syscall overhead and I/O involved in using this function.
+
+ pid :
+ Process ID of process to grant authorization to.
+ Normally one wants to pass result of os.getpid().
+
+ action_ids :
+ A list or tuple of action id strings
+
+ returns :
+ A set() of action_ids, where authentication succeeded
+ """
+ ret = _polkit.check_authv(pid, action_ids)
+ auth = set()
+ for i, action in enumerate(action_ids):
+ if (ret & (1<<i)):
+ auth.add(action)
+ return auth
+
+def auth_obtain(action_id, xid, pid):
+ """
+ Convenience function to prompt the user to authenticate to
+ gain an authorization for the given action. First, an attempt
+ to reach an Authentication Agent on the session message bus is made.
+ If that doesn't work and stdout/stdin are both tty's,
+ polkit-auth(1) is invoked.
+
+ action_id :
+ The action_id string for the PolKitAction to make the
+ user authenticate for.
+
+ xid :
+ X11 window ID for the window that the dialog will be transient for.
+ If there is no window, pass 0.
+
+ pid :
+ Process ID of process to grant authorization to.
+ Normally one wants to pass result of os.getpid().
+ """
+ if action_id in check_auth(pid, action_id):
+ return True
+
+ ret = _polkit.auth_obtain(action_id, xid, pid)
+ if (ret is list):
+ raise PolicyKitException, "%s: %s" % ret
+ return ret != 0
+
+class PolicyKitException(Exception):
+ pass
+
+__all__ = [
+ "polkit_check_auth",
+ "polkit_check_authv",
+ "polkit_auth_obtain",
+ "PolicyKitException",
+ ]
View
178 pypolkit.c
@@ -1,18 +1,35 @@
/*
-* Copyright (c) 2008, TUBITAK/UEKAE
+* Copyright (c) 2008, TUBITAK/UEKAE, Harald Hoyer
+*
+* Permission is hereby granted, free of charge, to any person
+* obtaining a copy of this software and associated documentation
+* files (the \"Software\"), to deal in the Software without
+* restriction, including without limitation the rights to use, copy,
+* modify, merge, publish, distribute, sublicense, and/or sell copies
+* of the Software, and to permit persons to whom the Software is
+* furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be
+* included in all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+* DEALINGS IN THE SOFTWARE.
*
-* 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 2 of the License, or (at your
-* option) any later version. Please read the COPYING file.
*/
-#include <Python.h>
#include <polkit-grant/polkit-grant.h>
+#include <polkit-dbus/polkit-dbus.h>
+#include <Python.h>
#include <datetime.h>
#include <unistd.h>
-//! Standard exception for pypolkit
+//! Standard exception for polkit
static PyObject *PK_Error;
//! Sets key of dictionary if value is not null
@@ -256,7 +273,6 @@ pk_auth_add(PyObject *self, PyObject *args)
}
PolKitAuthorizationDB *pk_auth = pk_init_authdb();
- PolKitError *pk_error = NULL;
PolKitAction *pk_action = pk_make_action(action_id);
PolKitCaller *pk_caller;
@@ -300,21 +316,159 @@ pk_auth_add(PyObject *self, PyObject *args)
}
}
-//! pypolkit methods
+static PyObject *pk_check_authv(PyObject *self, PyObject *args) {
+ pid_t pid = 0;
+ char **argv = NULL;
+ polkit_uint64_t result;
+ PyObject *resultobj = 0;
+ PyObject * obj = 0 ;
+
+ if (!PyArg_ParseTuple(args,(char *)"iO:polkit_check_authv",&pid, &obj))
+ return NULL;
+
+ /* Check if is a list */
+ if (PyList_Check(obj)) {
+ int size = PyList_Size(obj);
+ int i = 0;
+ argv = (char **) malloc((size+1)*sizeof(char *));
+
+ if (!argv) {
+ PyErr_SetString(PK_Error, "malloc failed.");
+ goto fail;
+ }
+
+ for (i = 0; i < size; i++) {
+ PyObject *o = PyList_GetItem(obj,i);
+ if (PyString_Check(o))
+ argv[i] = PyString_AsString(PyList_GetItem(obj,i));
+ else {
+ PyErr_SetString(PyExc_TypeError,"list must contain strings");
+ goto fail;
+ }
+ }
+ argv[i] = NULL;
+ } else if (PyTuple_Check(obj)) {
+ int size = PyTuple_Size(obj);
+ int i = 0;
+ argv = (char **) malloc((size+1)*sizeof(char *));
+ if (!argv) {
+ PyErr_SetString(PK_Error, "malloc failed.");
+ goto fail;
+ }
+ for (i = 0; i < size; i++) {
+ PyObject *o = PyTuple_GetItem(obj,i);
+ if (PyString_Check(o))
+ argv[i] = PyString_AsString(PyTuple_GetItem(obj,i));
+ else {
+ PyErr_SetString(PyExc_TypeError,"tuple must contain strings");
+ goto fail;
+ }
+ }
+ argv[i] = NULL;
+ } else {
+ PyErr_SetString(PyExc_TypeError,"not a list or tuple");
+ goto fail;
+ }
+
+ result = (polkit_uint64_t)polkit_check_authv(pid, (char const **)argv);
+
+ resultobj = PyLong_FromUnsignedLong((unsigned long long)(result));
+
+ if (argv)
+ free((char *) argv);
+
+ return resultobj;
+
+fail:
+ if (argv)
+ free((char *) argv);
+ return NULL;
+}
+
+static PyObject *pk_auth_obtain(PyObject *self, PyObject *args) {
+ PyObject *resultobj = 0;
+ char *action_id = NULL ;
+ polkit_uint32_t xid = 0;
+ pid_t pid = 0;
+ DBusError dbus_err;
+ polkit_bool_t result;
+ PolKitAction *action = NULL;
+
+ dbus_error_init(&dbus_err);
+
+ if (!PyArg_ParseTuple(args,(char *)"sii:pk_auth_obtain", &action_id, (int *)&xid, (int *)&pid))
+ return NULL;
+
+ result = (polkit_bool_t)polkit_auth_obtain((char const *)action_id, xid, pid, &dbus_err);
+
+ PyObject *l;
+
+ if ((result == FALSE) && dbus_error_is_set(&dbus_err)) {
+ PolKitResult res;
+ char *out_action_id;
+
+ if (polkit_dbus_error_parse(&dbus_err, &action, &res) == FALSE) {
+ PyErr_SetString(PK_Error, "polkit_dbus_error_parse");
+ goto fail;
+ }
+
+ if (polkit_action_get_action_id(action, &out_action_id) == FALSE)
+ goto fail;
+
+ l = PyList_New(0);
+
+ if (!l)
+ goto fail_clean_action;
+
+ resultobj = l;
+ PyList_Append(l, PyString_FromString(out_action_id));
+ PyList_Append(l, PyString_FromString(polkit_result_to_string_representation(res)));
+ polkit_action_unref(action);
+ }
+ else {
+ if (result == TRUE) {
+ Py_INCREF(Py_True);
+ resultobj = Py_True;
+ } else {
+ Py_INCREF(Py_False);
+ resultobj = Py_False;
+ }
+ }
+
+ dbus_error_free(&dbus_err);
+ return resultobj;
+
+ fail_clean_action:
+ polkit_action_unref(action);
+ fail:
+ dbus_error_free(&dbus_err);
+ return NULL;
+}
+
+
+//! polkit methods
static PyMethodDef polkit_methods[] = {
{"action_list", (PyCFunction) pk_action_list, METH_NOARGS, "Lists all actions."},
{"action_info", (PyCFunction) pk_action_info, METH_VARARGS, "Get action details."},
{"auth_list_uid", (PyCFunction) pk_auth_list_uid, METH_VARARGS, "List granted authorizations for specified UID."},
{"auth_list_all", (PyCFunction) pk_auth_list_all, METH_NOARGS, "List granted authorizations."},
{"auth_add", (PyCFunction) pk_auth_add, METH_VARARGS, "Authorize user for the given action."},
+ {"check_authv", (PyCFunction) pk_check_authv, METH_VARARGS, "Check authorization for the given action."},
+ {"auth_obtain", (PyCFunction) pk_auth_obtain, METH_VARARGS, "Authorize user for the given action."},
{NULL, NULL, 0, NULL}
};
+#ifndef PyMODINIT_FUNC /* declarations for DLL import/export */
+#define PyMODINIT_FUNC void
+#endif
PyMODINIT_FUNC
-initpypolkit(void)
+init_polkit(void)
{
- PyObject *m = Py_InitModule("pypolkit", polkit_methods);
+ PyObject *m = Py_InitModule3("_polkit", polkit_methods, "module for querying system-wide policy");
+
+ if (m == NULL)
+ return;
PyModule_AddObject(m, "SCOPE_ONE_SHOT", PyInt_FromLong((long) POLKIT_AUTHORIZATION_SCOPE_PROCESS_ONE_SHOT));
PyModule_AddObject(m, "SCOPE_PROCESS", PyInt_FromLong((long) POLKIT_AUTHORIZATION_SCOPE_PROCESS));
@@ -325,7 +479,7 @@ initpypolkit(void)
PyModule_AddObject(m, "DB_CAPABILITY_CAN_OBTAIN", PyInt_FromLong((long) POLKIT_AUTHORIZATION_DB_CAPABILITY_CAN_OBTAIN));
- PK_Error = PyErr_NewException("pypolkit.error", NULL, NULL);
+ PK_Error = PyErr_NewException("polkit.error", NULL, NULL);
Py_INCREF(PK_Error);
PyModule_AddObject(m, "error", PK_Error);
}
View
51 setup.py
@@ -3,16 +3,59 @@
from distutils.core import setup, Extension
+import os
+import sys
+prefix = os.environ.get("prefix", "/usr")
+
+from distutils.core import setup, Extension
+import subprocess as S
+
+def pkg_config(package):
+ library_path=[]
+ libs=[]
+ include_path=[]
+ try:
+ output,err = \
+ S.Popen('pkg-config --libs-only-L %s' % package,
+ shell=True, stdin=S.PIPE, stdout=S.PIPE,
+ close_fds=True).communicate()
+ if output:
+ for p in output.split():
+ library_path.append(p.strip()[2:])
+ output,err = \
+ S.Popen('pkg-config --libs-only-l %s' % package,
+ shell=True, stdin=S.PIPE, stdout=S.PIPE,
+ close_fds=True).communicate()
+ if output:
+ for p in output.split():
+ libs.append(p.strip()[2:])
+ output,err = \
+ S.Popen('pkg-config --cflags-only-I %s' % package,
+ shell=True, stdin=S.PIPE, stdout=S.PIPE,
+ close_fds=True).communicate()
+ if output:
+ for p in output.split():
+ include_path.append(p.strip()[2:])
+ except:
+ print >> sys.stderr, "Failed to find pkg-config"
+ return include_path,library_path,libs
+
+pk_include_dirs, pk_library_dirs, pk_libs = pkg_config("dbus-1 polkit-dbus polkit-grant")
+
+
setup(name="pypolkit",
version="0.1",
description="Python bindings for polkit-grant",
long_description="Python bindings for polkit-grant",
license="GNU GPL2",
author="Bahadır Kandemir",
author_email="bahadir@pardus.org.tr",
- url="http://www.pardus.org.tr/",
- ext_modules = [Extension('pypolkit',
+ url="http://svn.pardus.org.tr/uludag/trunk/python-modules/python-polkit/",
+ py_modules = ["polkit"],
+ ext_modules = [Extension('_polkit',
sources=['pypolkit.c'],
- libraries=['polkit-grant'],
- include_dirs=['/usr/include/PolicyKit'])],
+ include_dirs=pk_include_dirs,
+ libraries=pk_libs,
+ library_dirs=pk_library_dirs,
+ )],
)
View
30 test.py
@@ -1,30 +0,0 @@
-#!/usr/bin/python
-# -*- coding: utf-8 -*-
-
-import os
-import pypolkit
-
-print "= " * 20
-
-i = 0
-for action_id in pypolkit.action_list():
- print pypolkit.action_info(action_id)
- print "- " * 20
- i += 1
- if i > 5:
- break
-
-print "= " * 20
-
-print pypolkit.auth_list_uid(1000)
-
-print "= " * 20
-
-print pypolkit.auth_list_all()
-
-print "= " * 20
-
-try:
- print pypolkit.auth_add("tr.org.pardus.comar.system.service.set", pypolkit.SCOPE_ALWAYS, os.getuid())
-except Exception, e:
- print e
View
14 test_pksimple.py
@@ -0,0 +1,14 @@
+import polkit
+import os
+
+action_ids = ("org.freedesktop.hal.device-access.camera", "org.gnome.clockapplet.mechanism.configurehwclock")
+
+for a in action_ids:
+ print a, polkit.check_auth(os.getpid(), a)
+
+
+print action_ids, polkit.check_auth(os.getpid(), *action_ids)
+print action_ids, polkit.check_authv(os.getpid(), action_ids)
+print "org.freedesktop.hal.device-access.camera", polkit.check_auth(os.getpid(), "org.freedesktop.hal.device-access.camera")
+
+print polkit.auth_obtain("org.gnome.clockapplet.mechanism.configurehwclock", 0, os.getpid())

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