2
# -*- mode: python; after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); coding: utf-8 -*-
2
# -*- mode: python; coding: utf-8 -*-
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4
# Mandos server - give out binary blobs to connecting clients.
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6
# This program is partly derived from an example program for an Avahi
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7
# service publisher, downloaded from
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# <http://avahi.org/wiki/PythonPublishExample>. This includes the
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# methods "add", "remove", "server_state_changed",
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# "entry_group_state_changed", "cleanup", and "activate" in the
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# "AvahiService" class, and some lines in "main".
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# Everything else is
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# Copyright © 2008-2020 Teddy Hogeborn
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# Copyright © 2008-2020 Björn Påhlsson
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# This file is part of Mandos.
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# Mandos is free software: you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by
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# Copyright © 2008-2016 Teddy Hogeborn
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# Copyright © 2008-2016 Björn Påhlsson
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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19
# the Free Software Foundation, either version 3 of the License, or
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20
# (at your option) any later version.
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# Mandos is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
22
# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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24
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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25
# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
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# along with this program. If not, see
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# <http://www.gnu.org/licenses/>.
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# Contact the authors at <mandos@recompile.se>.
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34
from __future__ import (division, absolute_import, print_function,
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'--passphrase-file',
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+ self.gnupgargs,
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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ciphertext, err = proc.communicate(input=data)
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stdin = subprocess.PIPE,
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stdout = subprocess.PIPE,
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stderr = subprocess.PIPE)
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ciphertext, err = proc.communicate(input = data)
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253
if proc.returncode != 0:
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raise PGPError(err)
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return ciphertext
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def decrypt(self, data, password):
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passphrase = self.password_encode(password)
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with tempfile.NamedTemporaryFile(
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dir=self.tempdir) as passfile:
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dir = self.tempdir) as passfile:
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passfile.write(passphrase)
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proc = subprocess.Popen([self.gpg, '--decrypt',
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'--passphrase-file',
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+ self.gnupgargs,
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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decrypted_plaintext, err = proc.communicate(input=data)
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stdin = subprocess.PIPE,
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stdout = subprocess.PIPE,
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stderr = subprocess.PIPE)
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decrypted_plaintext, err = proc.communicate(input = data)
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if proc.returncode != 0:
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raise PGPError(err)
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return decrypted_plaintext
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275
# Pretend that we have an Avahi module
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"""This isn't so much a class as it is a module-like namespace."""
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IF_UNSPEC = -1 # avahi-common/address.h
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PROTO_UNSPEC = -1 # avahi-common/address.h
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PROTO_INET = 0 # avahi-common/address.h
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PROTO_INET6 = 1 # avahi-common/address.h
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"""This isn't so much a class as it is a module-like namespace.
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It is instantiated once, and simulates having an Avahi module."""
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IF_UNSPEC = -1 # avahi-common/address.h
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PROTO_UNSPEC = -1 # avahi-common/address.h
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PROTO_INET = 0 # avahi-common/address.h
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PROTO_INET6 = 1 # avahi-common/address.h
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DBUS_NAME = "org.freedesktop.Avahi"
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DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
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DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
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DBUS_PATH_SERVER = "/"
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def string_array_to_txt_array(t):
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def string_array_to_txt_array(self, t):
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return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
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for s in t), signature="ay")
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ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
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ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
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ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
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SERVER_INVALID = 0 # avahi-common/defs.h
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SERVER_REGISTERING = 1 # avahi-common/defs.h
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SERVER_RUNNING = 2 # avahi-common/defs.h
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SERVER_COLLISION = 3 # avahi-common/defs.h
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SERVER_FAILURE = 4 # avahi-common/defs.h
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ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
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ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
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ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
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SERVER_INVALID = 0 # avahi-common/defs.h
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SERVER_REGISTERING = 1 # avahi-common/defs.h
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SERVER_RUNNING = 2 # avahi-common/defs.h
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SERVER_COLLISION = 3 # avahi-common/defs.h
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SERVER_FAILURE = 4 # avahi-common/defs.h
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class AvahiError(Exception):
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def __init__(self, value, *args, **kwargs):
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class AvahiServiceToSyslog(AvahiService):
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def rename(self, *args, **kwargs):
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"""Add the new name to the syslog messages"""
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ret = super(AvahiServiceToSyslog, self).rename(*args,
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ret = AvahiService.rename(self, *args, **kwargs)
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syslogger.setFormatter(logging.Formatter(
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'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
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.format(self.name)))
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# Pretend that we have a GnuTLS module
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"""This isn't so much a class as it is a module-like namespace."""
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library = ctypes.util.find_library("gnutls")
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library = ctypes.util.find_library("gnutls-deb0")
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_library = ctypes.cdll.LoadLibrary(library)
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class GnuTLS(object):
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"""This isn't so much a class as it is a module-like namespace.
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It is instantiated once, and simulates having a GnuTLS module."""
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_library = ctypes.cdll.LoadLibrary(
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ctypes.util.find_library("gnutls"))
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_need_version = b"3.3.0"
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# Need to use class name "GnuTLS" here, since this method is
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# called before the assignment to the "gnutls" global variable
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if GnuTLS.check_version(self._need_version) is None:
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raise GnuTLS.Error("Needs GnuTLS {} or later"
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.format(self._need_version))
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# Unless otherwise indicated, the constants and types below are
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# all from the gnutls/gnutls.h C header file.
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E_INTERRUPTED = -52
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CRD_CERTIFICATE = 1
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E_NO_CERTIFICATE_FOUND = -49
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KEYID_USE_SHA256 = 1 # gnutls/x509.h
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OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
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class session_int(ctypes.Structure):
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session_t = ctypes.POINTER(session_int)
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class certificate_credentials_st(ctypes.Structure):
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certificate_credentials_t = ctypes.POINTER(
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certificate_credentials_st)
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certificate_type_t = ctypes.c_int
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class datum_t(ctypes.Structure):
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_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
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('size', ctypes.c_uint)]
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class openpgp_crt_int(ctypes.Structure):
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openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
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openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
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openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
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log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
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credentials_type_t = ctypes.c_int
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transport_ptr_t = ctypes.c_void_p
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close_request_t = ctypes.c_int
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class Error(Exception):
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def __init__(self, message=None, code=None, args=()):
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# We need to use the class name "GnuTLS" here, since this
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# exception might be raised from within GnuTLS.__init__,
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# which is called before the assignment to the "gnutls"
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# global variable has happened.
558
def __init__(self, message = None, code = None, args=()):
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# Default usage is by a message string, but if a return
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# code is passed, convert it to a string with
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# gnutls.strerror()
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if message is None and code is not None:
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message = gnutls.strerror(code)
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return super(gnutls.Error, self).__init__(
564
message = GnuTLS.strerror(code)
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return super(GnuTLS.Error, self).__init__(
601
568
class CertificateSecurityError(Error):
572
class Credentials(object):
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def __init__(self):
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self._c_object = gnutls.certificate_credentials_t()
608
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gnutls.certificate_allocate_credentials(
609
576
ctypes.byref(self._c_object))
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self.type = gnutls.CRD_CERTIFICATE
612
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def __del__(self):
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gnutls.certificate_free_credentials(self._c_object)
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def __init__(self, socket, credentials=None):
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class ClientSession(object):
583
def __init__(self, socket, credentials = None):
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self._c_object = gnutls.session_t()
618
gnutls_flags = gnutls.CLIENT
619
if gnutls.check_version(b"3.5.6"):
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gnutls_flags |= gnutls.NO_TICKETS
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gnutls_flags |= gnutls.ENABLE_RAWPK
623
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
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gnutls.init(ctypes.byref(self._c_object), gnutls.CLIENT)
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gnutls.set_default_priority(self._c_object)
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gnutls.transport_set_ptr(self._c_object, socket.fileno())
627
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gnutls.handshake_set_private_extensions(self._c_object,
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return _error_code(result)
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631
result = func(*arguments)
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# Unless otherwise indicated, the function declarations below are
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# all from the gnutls/gnutls.h C header file.
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priority_set_direct = _library.gnutls_priority_set_direct
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priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
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ctypes.POINTER(ctypes.c_char_p)]
680
641
priority_set_direct.restype = _error_code
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643
init = _library.gnutls_init
683
644
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
684
645
init.restype = _error_code
686
647
set_default_priority = _library.gnutls_set_default_priority
687
648
set_default_priority.argtypes = [session_t]
688
649
set_default_priority.restype = _error_code
690
651
record_send = _library.gnutls_record_send
691
652
record_send.argtypes = [session_t, ctypes.c_void_p,
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654
record_send.restype = ctypes.c_ssize_t
694
655
record_send.errcheck = _retry_on_error
696
657
certificate_allocate_credentials = (
697
658
_library.gnutls_certificate_allocate_credentials)
698
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certificate_allocate_credentials.argtypes = [
699
660
ctypes.POINTER(certificate_credentials_t)]
700
661
certificate_allocate_credentials.restype = _error_code
702
663
certificate_free_credentials = (
703
664
_library.gnutls_certificate_free_credentials)
704
certificate_free_credentials.argtypes = [
705
certificate_credentials_t]
665
certificate_free_credentials.argtypes = [certificate_credentials_t]
706
666
certificate_free_credentials.restype = None
708
668
handshake_set_private_extensions = (
709
669
_library.gnutls_handshake_set_private_extensions)
710
670
handshake_set_private_extensions.argtypes = [session_t,
712
672
handshake_set_private_extensions.restype = None
714
674
credentials_set = _library.gnutls_credentials_set
715
675
credentials_set.argtypes = [session_t, credentials_type_t,
717
677
credentials_set.restype = _error_code
719
679
strerror = _library.gnutls_strerror
720
680
strerror.argtypes = [ctypes.c_int]
721
681
strerror.restype = ctypes.c_char_p
723
683
certificate_type_get = _library.gnutls_certificate_type_get
724
684
certificate_type_get.argtypes = [session_t]
725
685
certificate_type_get.restype = _error_code
727
687
certificate_get_peers = _library.gnutls_certificate_get_peers
728
688
certificate_get_peers.argtypes = [session_t,
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689
ctypes.POINTER(ctypes.c_uint)]
730
690
certificate_get_peers.restype = ctypes.POINTER(datum_t)
732
692
global_set_log_level = _library.gnutls_global_set_log_level
733
693
global_set_log_level.argtypes = [ctypes.c_int]
734
694
global_set_log_level.restype = None
736
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global_set_log_function = _library.gnutls_global_set_log_function
737
697
global_set_log_function.argtypes = [log_func]
738
698
global_set_log_function.restype = None
740
700
deinit = _library.gnutls_deinit
741
701
deinit.argtypes = [session_t]
742
702
deinit.restype = None
744
704
handshake = _library.gnutls_handshake
745
705
handshake.argtypes = [session_t]
746
706
handshake.restype = _error_code
747
707
handshake.errcheck = _retry_on_error
749
709
transport_set_ptr = _library.gnutls_transport_set_ptr
750
710
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
751
711
transport_set_ptr.restype = None
753
713
bye = _library.gnutls_bye
754
714
bye.argtypes = [session_t, close_request_t]
755
715
bye.restype = _error_code
756
716
bye.errcheck = _retry_on_error
758
718
check_version = _library.gnutls_check_version
759
719
check_version.argtypes = [ctypes.c_char_p]
760
720
check_version.restype = ctypes.c_char_p
762
_need_version = b"3.3.0"
763
if check_version(_need_version) is None:
764
raise self.Error("Needs GnuTLS {} or later"
765
.format(_need_version))
767
_tls_rawpk_version = b"3.6.6"
768
has_rawpk = bool(check_version(_tls_rawpk_version))
772
class pubkey_st(ctypes.Structure):
774
pubkey_t = ctypes.POINTER(pubkey_st)
776
x509_crt_fmt_t = ctypes.c_int
778
# All the function declarations below are from
780
pubkey_init = _library.gnutls_pubkey_init
781
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
782
pubkey_init.restype = _error_code
784
pubkey_import = _library.gnutls_pubkey_import
785
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
787
pubkey_import.restype = _error_code
789
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
790
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
791
ctypes.POINTER(ctypes.c_ubyte),
792
ctypes.POINTER(ctypes.c_size_t)]
793
pubkey_get_key_id.restype = _error_code
795
pubkey_deinit = _library.gnutls_pubkey_deinit
796
pubkey_deinit.argtypes = [pubkey_t]
797
pubkey_deinit.restype = None
799
# All the function declarations below are from
802
openpgp_crt_init = _library.gnutls_openpgp_crt_init
803
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
804
openpgp_crt_init.restype = _error_code
806
openpgp_crt_import = _library.gnutls_openpgp_crt_import
807
openpgp_crt_import.argtypes = [openpgp_crt_t,
808
ctypes.POINTER(datum_t),
810
openpgp_crt_import.restype = _error_code
812
openpgp_crt_verify_self = \
813
_library.gnutls_openpgp_crt_verify_self
814
openpgp_crt_verify_self.argtypes = [
817
ctypes.POINTER(ctypes.c_uint),
819
openpgp_crt_verify_self.restype = _error_code
821
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
822
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
823
openpgp_crt_deinit.restype = None
825
openpgp_crt_get_fingerprint = (
826
_library.gnutls_openpgp_crt_get_fingerprint)
827
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
831
openpgp_crt_get_fingerprint.restype = _error_code
833
if check_version(b"3.6.4"):
834
certificate_type_get2 = _library.gnutls_certificate_type_get2
835
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
836
certificate_type_get2.restype = _error_code
722
# All the function declarations below are from gnutls/openpgp.h
724
openpgp_crt_init = _library.gnutls_openpgp_crt_init
725
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
726
openpgp_crt_init.restype = _error_code
728
openpgp_crt_import = _library.gnutls_openpgp_crt_import
729
openpgp_crt_import.argtypes = [openpgp_crt_t,
730
ctypes.POINTER(datum_t),
732
openpgp_crt_import.restype = _error_code
734
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
735
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
736
ctypes.POINTER(ctypes.c_uint)]
737
openpgp_crt_verify_self.restype = _error_code
739
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
740
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
741
openpgp_crt_deinit.restype = None
743
openpgp_crt_get_fingerprint = (
744
_library.gnutls_openpgp_crt_get_fingerprint)
745
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
749
openpgp_crt_get_fingerprint.restype = _error_code
838
751
# Remove non-public functions
839
752
del _error_code, _retry_on_error
753
# Create the global "gnutls" object, simulating a module
842
756
def call_pipe(connection, # : multiprocessing.Connection
843
757
func, *args, **kwargs):
844
758
"""This function is meant to be called by multiprocessing.Process
846
760
This function runs func(*args, **kwargs), and writes the resulting
847
761
return value on the provided multiprocessing.Connection.
849
763
connection.send(func(*args, **kwargs))
850
764
connection.close()
766
class Client(object):
854
767
"""A representation of a client host served by this server.
857
770
approved: bool(); 'None' if not yet approved/disapproved
858
771
approval_delay: datetime.timedelta(); Time to wait for approval
859
772
approval_duration: datetime.timedelta(); Duration of one approval
860
checker: multiprocessing.Process(); a running checker process used
861
to see if the client lives. 'None' if no process is
773
checker: subprocess.Popen(); a running checker process used
774
to see if the client lives.
775
'None' if no process is running.
863
776
checker_callback_tag: a GLib event source tag, or None
864
777
checker_command: string; External command which is run to check
865
778
if client lives. %() expansions are done at
1542
1447
exc_info=error)
1543
1448
return xmlstring
1547
1451
dbus.OBJECT_MANAGER_IFACE
1548
1452
except AttributeError:
1549
1453
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1552
1455
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1553
1456
"""A D-Bus object with an ObjectManager.
1555
1458
Classes inheriting from this exposes the standard
1556
1459
GetManagedObjects call and the InterfacesAdded and
1557
1460
InterfacesRemoved signals on the standard
1558
1461
"org.freedesktop.DBus.ObjectManager" interface.
1560
1463
Note: No signals are sent automatically; they must be sent
1563
1466
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1564
out_signature="a{oa{sa{sv}}}")
1467
out_signature = "a{oa{sa{sv}}}")
1565
1468
def GetManagedObjects(self):
1566
1469
"""This function must be overridden"""
1567
1470
raise NotImplementedError()
1569
1472
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1570
signature="oa{sa{sv}}")
1473
signature = "oa{sa{sv}}")
1571
1474
def InterfacesAdded(self, object_path, interfaces_and_properties):
1574
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1477
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature = "oas")
1575
1478
def InterfacesRemoved(self, object_path, interfaces):
1578
1481
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1580
path_keyword='object_path',
1581
connection_keyword='connection')
1482
out_signature = "s",
1483
path_keyword = 'object_path',
1484
connection_keyword = 'connection')
1582
1485
def Introspect(self, object_path, connection):
1583
1486
"""Overloading of standard D-Bus method.
1585
1488
Override return argument name of GetManagedObjects to be
1586
1489
"objpath_interfaces_and_properties"
2530
class MultiprocessingMixIn:
2365
class MultiprocessingMixIn(object):
2531
2366
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2533
2368
def sub_process_main(self, request, address):
2535
2370
self.finish_request(request, address)
2536
2371
except Exception:
2537
2372
self.handle_error(request, address)
2538
2373
self.close_request(request)
2540
2375
def process_request(self, request, address):
2541
2376
"""Start a new process to process the request."""
2542
proc = multiprocessing.Process(target=self.sub_process_main,
2543
args=(request, address))
2377
proc = multiprocessing.Process(target = self.sub_process_main,
2378
args = (request, address))
2548
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
2383
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2549
2384
""" adds a pipe to the MixIn """
2551
2386
def process_request(self, request, client_address):
2552
2387
"""Overrides and wraps the original process_request().
2554
2389
This function creates a new pipe in self.pipe
2556
2391
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2558
2393
proc = MultiprocessingMixIn.process_request(self, request,
2559
2394
client_address)
2560
2395
self.child_pipe.close()
2561
2396
self.add_pipe(parent_pipe, proc)
2563
2398
def add_pipe(self, parent_pipe, proc):
2564
2399
"""Dummy function; override as necessary"""
2565
2400
raise NotImplementedError()
2568
2403
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2569
socketserver.TCPServer):
2404
socketserver.TCPServer, object):
2570
2405
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2573
2408
enabled: Boolean; whether this server is activated yet
2574
2409
interface: None or a network interface name (string)
2575
2410
use_ipv6: Boolean; to use IPv6 or not
2578
2413
def __init__(self, server_address, RequestHandlerClass,
2579
2414
interface=None,
2691
2523
self.gnutls_priority = gnutls_priority
2692
2524
IPv6_TCPServer.__init__(self, server_address,
2693
2525
RequestHandlerClass,
2694
interface=interface,
2526
interface = interface,
2527
use_ipv6 = use_ipv6,
2528
socketfd = socketfd)
2698
2530
def server_activate(self):
2699
2531
if self.enabled:
2700
2532
return socketserver.TCPServer.server_activate(self)
2702
2534
def enable(self):
2703
2535
self.enabled = True
2705
2537
def add_pipe(self, parent_pipe, proc):
2706
2538
# Call "handle_ipc" for both data and EOF events
2707
2539
GLib.io_add_watch(
2708
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2709
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2540
parent_pipe.fileno(),
2541
GLib.IO_IN | GLib.IO_HUP,
2710
2542
functools.partial(self.handle_ipc,
2711
parent_pipe=parent_pipe,
2543
parent_pipe = parent_pipe,
2714
2546
def handle_ipc(self, source, condition,
2715
2547
parent_pipe=None,
2717
2549
client_object=None):
2718
2550
# error, or the other end of multiprocessing.Pipe has closed
2719
2551
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2720
2552
# Wait for other process to exit
2724
2556
# Read a request from the child
2725
2557
request = parent_pipe.recv()
2726
2558
command = request[0]
2728
2560
if command == 'init':
2729
key_id = request[1].decode("ascii")
2730
fpr = request[2].decode("ascii")
2731
address = request[3]
2562
address = request[2]
2733
2564
for c in self.clients.values():
2734
if key_id == ("E3B0C44298FC1C149AFBF4C8996FB924"
2735
"27AE41E4649B934CA495991B7852B855"):
2737
if key_id and c.key_id == key_id:
2740
if fpr and c.fingerprint == fpr:
2565
if c.fingerprint == fpr:
2744
logger.info("Client not found for key ID: %s, address"
2745
": %s", key_id or fpr, address)
2569
logger.info("Client not found for fingerprint: %s, ad"
2570
"dress: %s", fpr, address)
2746
2571
if self.use_dbus:
2747
2572
# Emit D-Bus signal
2748
mandos_dbus_service.ClientNotFound(key_id or fpr,
2573
mandos_dbus_service.ClientNotFound(fpr,
2750
2575
parent_pipe.send(False)
2753
2578
GLib.io_add_watch(
2754
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2755
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2579
parent_pipe.fileno(),
2580
GLib.IO_IN | GLib.IO_HUP,
2756
2581
functools.partial(self.handle_ipc,
2757
parent_pipe=parent_pipe,
2759
client_object=client))
2582
parent_pipe = parent_pipe,
2584
client_object = client))
2760
2585
parent_pipe.send(True)
2761
2586
# remove the old hook in favor of the new above hook on
2765
2590
funcname = request[1]
2766
2591
args = request[2]
2767
2592
kwargs = request[3]
2769
2594
parent_pipe.send(('data', getattr(client_object,
2770
2595
funcname)(*args,
2773
2598
if command == 'getattr':
2774
2599
attrname = request[1]
2775
2600
if isinstance(client_object.__getattribute__(attrname),
2776
collections.abc.Callable):
2601
collections.Callable):
2777
2602
parent_pipe.send(('function', ))
2779
2604
parent_pipe.send((
2780
2605
'data', client_object.__getattribute__(attrname)))
2782
2607
if command == 'setattr':
2783
2608
attrname = request[1]
2784
2609
value = request[2]
2785
2610
setattr(client_object, attrname, value)
2790
2615
def rfc3339_duration_to_delta(duration):
2791
2616
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2793
>>> timedelta = datetime.timedelta
2794
>>> rfc3339_duration_to_delta("P7D") == timedelta(7)
2796
>>> rfc3339_duration_to_delta("PT60S") == timedelta(0, 60)
2798
>>> rfc3339_duration_to_delta("PT60M") == timedelta(0, 3600)
2800
>>> rfc3339_duration_to_delta("PT24H") == timedelta(1)
2802
>>> rfc3339_duration_to_delta("P1W") == timedelta(7)
2804
>>> rfc3339_duration_to_delta("PT5M30S") == timedelta(0, 330)
2806
>>> rfc3339_duration_to_delta("P1DT3M20S") == timedelta(1, 200)
2618
>>> rfc3339_duration_to_delta("P7D")
2619
datetime.timedelta(7)
2620
>>> rfc3339_duration_to_delta("PT60S")
2621
datetime.timedelta(0, 60)
2622
>>> rfc3339_duration_to_delta("PT60M")
2623
datetime.timedelta(0, 3600)
2624
>>> rfc3339_duration_to_delta("PT24H")
2625
datetime.timedelta(1)
2626
>>> rfc3339_duration_to_delta("P1W")
2627
datetime.timedelta(7)
2628
>>> rfc3339_duration_to_delta("PT5M30S")
2629
datetime.timedelta(0, 330)
2630
>>> rfc3339_duration_to_delta("P1DT3M20S")
2631
datetime.timedelta(1, 200)
2811
2634
# Parsing an RFC 3339 duration with regular expressions is not
2812
2635
# possible - there would have to be multiple places for the same
2813
2636
# values, like seconds. The current code, while more esoteric, is
2814
2637
# cleaner without depending on a parsing library. If Python had a
2815
2638
# built-in library for parsing we would use it, but we'd like to
2816
2639
# avoid excessive use of external libraries.
2818
2641
# New type for defining tokens, syntax, and semantics all-in-one
2819
2642
Token = collections.namedtuple("Token", (
2820
2643
"regexp", # To match token; if "value" is not None, must have
3007
2827
parser.add_argument("--no-zeroconf", action="store_false",
3008
2828
dest="zeroconf", help="Do not use Zeroconf",
3011
2831
options = parser.parse_args()
2835
fail_count, test_count = doctest.testmod()
2836
sys.exit(os.EX_OK if fail_count == 0 else 1)
3013
2838
# Default values for config file for server-global settings
3014
if gnutls.has_rawpk:
3015
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
3016
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
3018
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
3019
":+SIGN-DSA-SHA256")
3020
server_defaults = {"interface": "",
3024
"priority": priority,
3025
"servicename": "Mandos",
3031
"statedir": "/var/lib/mandos",
3032
"foreground": "False",
2839
server_defaults = { "interface": "",
2844
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2845
":+SIGN-DSA-SHA256",
2846
"servicename": "Mandos",
2852
"statedir": "/var/lib/mandos",
2853
"foreground": "False",
3037
2857
# Parse config file for server-global settings
3038
server_config = configparser.ConfigParser(server_defaults)
2858
server_config = configparser.SafeConfigParser(server_defaults)
3039
2859
del server_defaults
3040
2860
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3041
# Convert the ConfigParser object to a dict
2861
# Convert the SafeConfigParser object to a dict
3042
2862
server_settings = server_config.defaults()
3043
2863
# Use the appropriate methods on the non-string config options
3044
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3045
"foreground", "zeroconf"):
2864
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
3046
2865
server_settings[option] = server_config.getboolean("DEFAULT",
3048
2867
if server_settings["port"]:
3221
3040
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3222
3041
service = AvahiServiceToSyslog(
3223
name=server_settings["servicename"],
3224
servicetype="_mandos._tcp",
3042
name = server_settings["servicename"],
3043
servicetype = "_mandos._tcp",
3044
protocol = protocol,
3227
3046
if server_settings["interface"]:
3228
3047
service.interface = if_nametoindex(
3229
3048
server_settings["interface"].encode("utf-8"))
3231
3050
global multiprocessing_manager
3232
3051
multiprocessing_manager = multiprocessing.Manager()
3234
3053
client_class = Client
3236
client_class = functools.partial(ClientDBus, bus=bus)
3055
client_class = functools.partial(ClientDBus, bus = bus)
3238
3057
client_settings = Client.config_parser(client_config)
3239
3058
old_client_settings = {}
3240
3059
clients_data = {}
3242
3061
# This is used to redirect stdout and stderr for checker processes
3244
wnull = open(os.devnull, "w") # A writable /dev/null
3063
wnull = open(os.devnull, "w") # A writable /dev/null
3245
3064
# Only used if server is running in foreground but not in debug
3247
3066
if debug or not foreground:
3250
3069
# Get client data and settings from last running state.
3251
3070
if server_settings["restore"]:
3253
3072
with open(stored_state_path, "rb") as stored_state:
3254
if sys.version_info.major == 2:
3073
if sys.version_info.major == 2:
3255
3074
clients_data, old_client_settings = pickle.load(
3258
3077
bytes_clients_data, bytes_old_client_settings = (
3259
pickle.load(stored_state, encoding="bytes"))
3260
# Fix bytes to strings
3078
pickle.load(stored_state, encoding = "bytes"))
3079
### Fix bytes to strings
3263
clients_data = {(key.decode("utf-8")
3264
if isinstance(key, bytes)
3267
bytes_clients_data.items()}
3082
clients_data = { (key.decode("utf-8")
3083
if isinstance(key, bytes)
3086
bytes_clients_data.items() }
3268
3087
del bytes_clients_data
3269
3088
for key in clients_data:
3270
value = {(k.decode("utf-8")
3271
if isinstance(k, bytes) else k): v
3273
clients_data[key].items()}
3089
value = { (k.decode("utf-8")
3090
if isinstance(k, bytes) else k): v
3092
clients_data[key].items() }
3274
3093
clients_data[key] = value
3275
3094
# .client_structure
3276
3095
value["client_structure"] = [
3277
3096
(s.decode("utf-8")
3278
3097
if isinstance(s, bytes)
3279
3098
else s) for s in
3280
value["client_structure"]]
3281
# .name, .host, and .checker_command
3282
for k in ("name", "host", "checker_command"):
3099
value["client_structure"] ]
3101
for k in ("name", "host"):
3283
3102
if isinstance(value[k], bytes):
3284
3103
value[k] = value[k].decode("utf-8")
3285
if "key_id" not in value:
3286
value["key_id"] = ""
3287
elif "fingerprint" not in value:
3288
value["fingerprint"] = ""
3289
# old_client_settings
3104
## old_client_settings
3291
3106
old_client_settings = {
3292
3107
(key.decode("utf-8")
3293
3108
if isinstance(key, bytes)
3294
3109
else key): value
3295
3110
for key, value in
3296
bytes_old_client_settings.items()}
3111
bytes_old_client_settings.items() }
3297
3112
del bytes_old_client_settings
3298
# .host and .checker_command
3299
3114
for value in old_client_settings.values():
3300
for attribute in ("host", "checker_command"):
3301
if isinstance(value[attribute], bytes):
3302
value[attribute] = (value[attribute]
3115
if isinstance(value["host"], bytes):
3116
value["host"] = (value["host"]
3304
3118
os.remove(stored_state_path)
3305
3119
except IOError as e:
3306
3120
if e.errno == errno.ENOENT: