create core package

This commit is contained in:
aydemir
2015-02-24 11:18:35 +02:00
parent 0e4b743b82
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# -*- coding: utf-8 -*-
#
# Copyright (C) 2006-2010 TUBITAK/UEKAE
#
# 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.
#
import os
import glob
import fcntl
import random
import shutil
import hashlib
from string import ascii_letters, digits
from pardus.fileutils import FileLock
try:
import polkit
except ImportError:
pass
# faces
FACES = [
"/usr/share/kde4/apps/kdm/pics/users",
]
# messages
invalid_username_msg = {
"en": "User name is invalid.",
"tr": "Kullanıcı adı geçersiz.",
"fr": "Nom d'utilisateur invalide.",
"es": "Nombre de usuario no es válido.",
"de": "Benutzername nicht erlaubt.",
"nl": "Gebruikernaam is ongeldig.",
}
invalid_realname_msg = {
"en": "Real name is invalid.",
"tr": "Gerçek isim geçersiz.",
"fr": "Nom réel invalide.",
"es": "Nombre real no es válido.",
"de": "Dieser vollständige Name ist nicht erlaubt.",
"nl": "Echte naam is ongeldig.",
}
short_password_msg = {
"en": "Password is too short.",
"tr": "Parola çok kısa.",
"fr": "Mot de passe trop court.",
"es": "Contraseña es demadiado corta.",
"de": "Passwort ist zu kurz.",
"nl": "Wachtwoord is te kort.",
}
name_password_msg = {
"en": "Dont use your name as a password.",
"tr": "Adınızı parola olarak kullanmayın.",
"fr": "N'utilisez pas votre nom comme mot de passe.",
"es": "No use su nombre como contraseña.",
"de": "Benutzen Sie nicht Ihren Namen als Passwort.",
"nl": "Uw naam niet als wachtwoord gebruiken.",
}
invalid_group_msg = {
"en": "Invalid group name:",
"tr": "Geçersiz grup adı:",
"fr": "Nom de groupe invalide:",
"es": "Nombre de grupo inválido:",
"de": "Gruppenname nicht erlaubt:",
"nl": "Ongeldige groepnaam:",
}
invalid_userid_msg = {
"en": "Invalid user ID.",
"tr": "Geçersiz kullanıcı numarası.",
"fr": "Identifiant utilisateur invalide.",
"es": "ID de usuario no válido.",
"de": "User-ID nicht erlaubt.",
"nl": "Gebruiker-id is ongeldig.",
}
used_userid_msg = {
"en": "This user ID is already used.",
"tr": "Bu kullanıcı numarası zaten kullanılmakta.",
"fr": "Cet identifiant utilisateur est déjà utilisé.",
"es": "Este ID de usuario ya está en uso.",
"de": "Dieser user-ID is schon vergeben.",
"nl": "Deze gebruiker-id is reeds in gebruik.",
}
used_username_msg = {
"en": "This user name is already used.",
"tr": "Bu kullanıcı adı zaten kullanılmakta.",
"fr": "Ce nom d'utilisateur est déjà utilisé.",
"es": "Este nombre de usuario ya está en uso.",
"de": "Dieser Benutzername is schon vergeben.",
"nl": "Deze gebruikernaam is reeds in gebruik.",
}
no_group_msg = {
"en": "No such group exists.",
"tr": "Böyle bir grup yok.",
"fr": "Il n'existe aucun groupe de ce nom-là.",
"es": "No existe el grupo.",
"de": "Diese Gruppe gibt es nicht.",
"nl": "Deze groep bestaat niet.",
}
no_user_msg = {
"en": "No user with given ID.",
"tr": "Verilen numaralı bir kullanıcı yok.",
"fr": "Il n'existe aucun utilisateur avec et identifiant.",
"es": "No existe usuario con éste ID.",
"de": "Es gibt keien Benutzer mit dem angegebenen ID.",
"nl": "Gebruiker met opgegeven ID bestaat niet.",
}
delete_root_msg = {
"en": "You cant delete root user.",
"tr": "Kök kullanıcıyı silemezsiniz.",
"fr": "Vous ne pouvez pas supprimer l'administrateur.",
"es": "No se puede eliminar al usuario root.",
"de": "Benutzer ROOT darf nicht gelöscht werden.",
"nl": "Systeembeheerder (root) kan niet verwijderd worden.",
}
invalid_groupid_msg = {
"en": "Invalid group ID.",
"tr": "Geçersiz grup numarası.",
"fr": "Identifiant de groupe invalide.",
"es": "ID del grupo inválido.",
"de": "Gruppen-ID nicht zulässig.",
"nl": "Groep-ID is ongeldig.",
}
used_groupid_msg = {
"en": "This group ID is already used.",
"tr": "Bu grup numarası zaten kullanılmakta.",
"fr": "Cet identifiant de groupe est déjà utilisé.",
"es": "Este ID de grupo ya está en uso.",
"de": "Dieser Gruppen-ID is schon vergeben.",
"nl": "Deze groep-ID is reeds in gebruik.",
}
used_groupname_msg = {
"en": "This group name is already used.",
"tr": "Bu grup adı zaten kullanılmakta.",
"fr": "Ce nom de groupe est déjà utilisé.",
"es": "Este nombre de grupo ya está en uso.",
"de": "Dieser Gruppennam is schon vergeben.",
"nl": "Deze groepnaam is reeds in gebruik.",
}
# parameters
uid_minimum = 1000
uid_maximum = 65000
#
def setFace(uid, homedir):
files = []
for directory in FACES:
if os.path.exists(directory):
for filename in os.listdir(directory):
if filename.endswith(".png"):
files.append(os.path.join(directory, filename))
if len(files):
icon = os.path.join(homedir, ".face.icon")
shutil.copy(random.choice(files), icon)
os.chmod(icon, 0644)
os.chown(icon, uid, 100)
def checkName(name):
first_valid = ascii_letters
valid = ascii_letters + "_-" + digits
if len(name) == 0 or len(filter(lambda x: not x in valid, name)) != 0 or not name[0] in first_valid:
fail(_(invalid_username_msg))
def checkRealName(realname):
if len(filter(lambda x: x == "\n" or x == ":", realname)) != 0:
fail(_(invalid_realname_msg))
def checkPassword(password, badlist):
if len(password) < 1:
fail(_(short_password_msg))
if password in badlist:
fail(_(name_password_msg))
def checkGroupName(name):
valid = ascii_letters + "_-"
if name == "" or len(filter(lambda x: not x in valid, name)) != 0:
fail(_(invalid_group_msg) + " " + name)
#
class User:
def __init__(self):
self.password = None
def __str__(self):
return "%s (%d, %d)\n %s\n %s\n %s\n %s" % (
self.name, self.uid, self.gid,
self.realname, self.homedir, self.shell,
self.password
)
class Group:
def __str__(self):
s = "%s (%d)" % (self.name, self.gid)
for name in self.members:
s += "\n %s" % name
return s
class Database:
passwd_path = "/etc/passwd"
shadow_path = "/etc/shadow"
group_path = "/etc/group"
lock_path = "/etc/.pwd.lock"
def __init__(self, for_read=False):
self.lock = FileLock(self.lock_path)
self.lock.lock(shared=for_read)
self.users = {}
self.users_by_name = {}
self.groups = {}
self.groups_by_name = {}
for line in file(self.passwd_path):
if line != "" and line != "\n":
parts = line.rstrip("\n").split(":")
user = User()
user.name = parts[0]
user.uid = int(parts[2])
user.gid = int(parts[3])
user.realname = parts[4]
user.homedir = parts[5]
user.shell = parts[6]
self.users[user.uid] = user
self.users_by_name[user.name] = user
for line in file(self.shadow_path):
if line != "" and line != "\n":
parts = line.rstrip("\n").split(":")
if self.users_by_name.has_key(parts[0]):
user = self.users_by_name[parts[0]]
user.password = parts[1]
user.pwrest = parts[2:]
for line in file(self.group_path):
if line != "" and line != "\n":
parts = line.rstrip("\n").split(":")
group = Group()
group.name = parts[0]
group.gid = int(parts[2])
group.members = parts[3].split(",")
if "" in group.members:
group.members.remove("")
self.groups[group.gid] = group
self.groups_by_name[group.name] = group
def sync(self):
lines = []
keys = self.users.keys()
keys.sort()
for uid in keys:
user = self.users[uid]
lines.append("%s:x:%d:%d:%s:%s:%s\n" % (
user.name, uid, user.gid,
user.realname, user.homedir, user.shell
))
f = file(self.passwd_path, "w")
f.writelines(lines)
f.close()
lines = []
keys = self.users.keys()
keys.sort()
for uid in keys:
user = self.users[uid]
if user.password:
lines.append("%s:%s:%s\n" % (
user.name,
user.password,
":".join(user.pwrest)
))
else:
lines.append("%s::13094:0:99999:7:::\n" % user.name)
f = file(self.shadow_path, "w")
f.writelines(lines)
f.close()
lines = []
keys = self.groups.keys()
keys.sort()
for gid in keys:
group = self.groups[gid]
lines.append("%s:x:%s:%s\n" % (group.name, gid, ",".join(group.members)))
f = file(self.group_path, "w")
f.writelines(lines)
f.close()
def set_groups(self, name, grouplist):
for gid in self.groups.keys():
g = self.groups[gid]
if name in g.members:
if not g.name in grouplist:
g.members.remove(name)
else:
if g.name in grouplist:
g.members.append(name)
def next_uid(self):
for i in range(uid_minimum, uid_maximum):
if not self.users.has_key(i):
return i
def next_gid(self):
for i in range(uid_minimum, uid_maximum):
if not self.groups.has_key(i):
return i
def setup_home(uid, gid, path):
if not os.path.exists(path):
# Copy skeleton home dir
os.system('/bin/cp -r %s "%s"' % ('/etc/skel', path))
# Set a random face icon
faces = glob.glob("/usr/share/*/apps/kdm/pics/users/*.png")
if len(faces) > 0:
facepath = os.path.join(path, '.face.icon')
os.system('/bin/cp --remove-destination "%s" "%s"' % (random.choice(faces), facepath))
os.chmod(facepath, 0644)
# Set ownerships
os.system('/bin/chown -R %d:%d "%s"' % (uid, gid, path))
# Make sure at least top of the home dir's permissions are correct
os.system('/bin/chown %d:%d "%s"' % (uid, gid, path))
os.chmod(path, 0711)
# methods
def userList():
def format(dict, uid):
item = dict[uid]
return (item.uid, item.name, item.realname)
db = Database(for_read=True)
return map(lambda x: format(db.users, x), db.users)
def userInfo(uid):
uid = int(uid)
db = Database(for_read=True)
if db.users.has_key(uid):
u = db.users[uid]
groups = []
for item in db.groups.keys():
if u.name in db.groups[item].members:
groups.append(db.groups[item].name)
grp = db.groups.get(u.gid, None)
if grp:
if grp.name in groups:
groups.remove(grp.name)
groups.insert(0, grp.name)
ret = (
u.name,
u.realname,
u.gid,
u.homedir,
u.shell,
groups,
)
return ret
else:
fail(_(no_user_msg))
def addUser(uid, name, realname, homedir, shell, password, groups, grants, blocks):
if not realname:
realname = ""
if not homedir:
homedir = "/home/" + name
if not shell:
shell = "/bin/bash"
if not groups:
groups = ["nogroup"]
for item in groups:
checkGroupName(item)
checkName(name)
checkRealName(realname)
if password:
checkPassword(password, (name, realname))
db = Database()
if uid == -1:
uid = db.next_uid()
else:
try:
uid = int(uid)
if uid < 0 or uid > 65536:
raise
except:
fail(_(invalid_userid_msg))
if db.users.has_key(uid):
fail(_(used_userid_msg))
if db.users_by_name.has_key(name):
fail(_(used_username_msg))
# First group in the list is the user's main group
g = db.groups_by_name.get(groups[0], None)
if not g:
fail(_(no_group_msg))
gid = g.gid
u = User()
u.uid = uid
u.gid = gid
u.name = name
u.realname = realname
u.homedir = homedir
u.shell = shell
if password:
u.password = shadowCrypt(password)
else:
u.password = "*"
u.pwrest = [ "13094", "0", "99999", "7", "", "", "" ]
db.users[uid] = u
db.set_groups(name, groups)
# No need to setup a real home dir for daemons
if uid >= 1000 or homedir.startswith("/home/"):
setup_home(uid, gid, homedir)
setFace(uid, homedir)
db.sync()
for grant in grants:
if grant != "":
grantAuthorization(uid, grant)
for block in blocks:
if block != "":
blockAuthorization(uid, block)
return uid
def setUser(uid, realname, homedir, shell, password, groups):
uid = int(uid)
db = Database()
u = db.users.get(uid, None)
if u:
if realname:
checkRealName(realname)
u.realname = realname
if homedir:
u.homedir = homedir
if shell:
u.shell = shell
if password:
checkPassword(password, (u.name, u.realname, realname))
u.password = shadowCrypt(password)
if groups:
# FIXME: check main group
for item in groups:
checkGroupName(item)
db.set_groups(u.name, groups)
db.sync()
else:
fail(_(no_user_msg))
def deleteUser(uid, deletefiles):
uid = int(uid)
if uid == 0:
fail(_(delete_root_msg))
db = Database()
u = db.users.get(uid, None)
if u:
#delete authorizations of user
try:
polkit.auth_revoke_all(uid)
except:
pass
home = u.homedir[:]
db.set_groups(u.name, [])
del db.users[uid]
db.sync()
if deletefiles:
os.system('/bin/rm -rf "%s"' % home)
def groupList():
def format(dict, gid):
item = dict[gid]
return (item.gid, item.name)
db = Database(for_read=True)
return map(lambda x: format(db.groups, x), db.groups)
def addGroup(gid, name):
checkGroupName(name)
db = Database()
if gid == -1:
gid = db.next_gid()
else:
try:
gid = int(gid)
if gid < 0 or gid > 65536:
raise
except:
fail(_(invalid_groupid_msg))
if db.groups.has_key(gid):
fail(_(used_groupid_msg))
if db.groups_by_name.has_key(name):
fail(_(used_groupname_msg))
g = Group()
g.gid = gid
g.name = name
g.members = []
db.groups[gid] = g
db.sync()
return gid
def deleteGroup(gid):
gid = int(gid)
db = Database()
if db.groups.has_key(gid):
del db.groups[gid]
db.sync()
#
# Crypt function for shadow file
#
def shadowCrypt(password):
des_salt = list('./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz')
salt, magic = str(random.random())[-8:], '$1$'
ctx = hashlib.md5(password)
ctx.update(magic)
ctx.update(salt)
ctx1 = hashlib.md5(password)
ctx1.update(salt)
ctx1.update(password)
final = ctx1.digest()
for i in range(len(password), 0 , -16):
if i > 16:
ctx.update(final)
else:
ctx.update(final[:i])
i = len(password)
while i:
if i & 1:
ctx.update('\0')
else:
ctx.update(password[:1])
i = i >> 1
final = ctx.digest()
for i in range(1000):
ctx1 = hashlib.md5()
if i & 1:
ctx1.update(password)
else:
ctx1.update(final)
if i % 3: ctx1.update(salt)
if i % 7: ctx1.update(password)
if i & 1:
ctx1.update(final)
else:
ctx1.update(password)
final = ctx1.digest()
def _to64(v, n):
r = ''
while (n-1 >= 0):
r = r + des_salt[v & 0x3F]
v = v >> 6
n = n - 1
return r
rv = magic + salt + '$'
final = map(ord, final)
l = (final[0] << 16) + (final[6] << 8) + final[12]
rv = rv + _to64(l, 4)
l = (final[1] << 16) + (final[7] << 8) + final[13]
rv = rv + _to64(l, 4)
l = (final[2] << 16) + (final[8] << 8) + final[14]
rv = rv + _to64(l, 4)
l = (final[3] << 16) + (final[9] << 8) + final[15]
rv = rv + _to64(l, 4)
l = (final[4] << 16) + (final[10] << 8) + final[5]
rv = rv + _to64(l, 4)
l = final[11]
rv = rv + _to64(l, 2)
return rv
#
# List authorizations by UID
#
def listUserAuthorizations(uid):
actions = polkit.auth_list_uid(int(uid))
auths = []
for action in actions:
action_info = polkit.action_info(action['action_id'])
auths.append((action['action_id'], action['scope'], action_info['description'], action_info['policy_active'], action['negative']))
return auths
#
# Grant authorization to user
#
def grantAuthorization(uid, action):
uid = int(uid)
if action == "*":
for action_id in polkit.action_list():
try:
polkit.auth_revoke(uid, action_id)
polkit.auth_add(action_id, polkit.SCOPE_ALWAYS, uid)
except:
return False
else:
try:
polkit.auth_revoke(uid, action)
polkit.auth_add(action, polkit.SCOPE_ALWAYS, uid)
except:
return False
return True
#
# Revoke authorization of user
#
def revokeAuthorization(uid, action):
uid = int(uid)
if action == "*":
for action_id in polkit.action_list():
try:
polkit.auth_revoke(uid, action_id)
except:
return False
else:
try:
polkit.auth_revoke(uid, action)
except:
return False
return True
#
# Block authorization of user
#
def blockAuthorization(uid, action):
uid = int(uid)
if action == "*":
for action_id in polkit.action_list():
try:
polkit.auth_revoke(uid, action_id)
polkit.auth_block(uid, action_id)
except:
return False
else:
try:
polkit.auth_revoke(uid, action)
polkit.auth_block(uid, action)
except:
return False
return True