[Common] Add is_interface to validate network interfaces

Libtorrent now supports interface names instead of just IP address so
add new common functions to validate user input.

* Added is_interface that will verify if a libtorrent interface of name
or IP address.
* Added is_interface_name to verify that the name supplied is a valid
network interface name in the operating system.
  On Windows sock.if_nameindex() is only supported on 3.8+ and does not
return a uuid (required by libtorrent) so use ifaddr package. Using git
commit version for ifaddr due to adapter name decode bug in v0.1.7.
On other OSes attempt to use stdlib and fallback to ifaddr if installed
otherwiser return True.
* Added tests for is_interface & is_interface_name
* Updated UIs with change from address to interface
* Updated is_ipv6 and is_ipv4 to used inet_pton; now supported on
Windows.

Ref: https://github.com/pydron/ifaddr/pull/32
Closes: https://github.com/deluge-torrent/deluge/pull/338
This commit is contained in:
tbkizle 2020-02-13 00:13:44 -05:00 committed by Calum Lind
parent d8acadb085
commit 540d557cb2
No known key found for this signature in database
GPG Key ID: 90597A687B836BA3
10 changed files with 156 additions and 36 deletions

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@ -28,6 +28,7 @@ All modules will require the [common](#common) section dependencies.
- [setproctitle] - Optional: Renaming processes.
- [Pillow] - Optional: Support for resizing tracker icons.
- [dbus-python] - Optional: Show item location in filemanager.
- [ifaddr] - Optional: Verify network interfaces.
### Linux and BSD
@ -96,3 +97,4 @@ All modules will require the [common](#common) section dependencies.
[libnotify]: https://developer.gnome.org/libnotify/
[python-appindicator]: https://packages.ubuntu.com/xenial/python-appindicator
[librsvg]: https://wiki.gnome.org/action/show/Projects/LibRsvg
[ifaddr]: https://pypi.org/project/ifaddr/

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@ -17,6 +17,7 @@ import numbers
import os
import platform
import re
import socket
import subprocess
import sys
import tarfile
@ -44,6 +45,11 @@ if platform.system() in ('Windows', 'Microsoft'):
os.environ['SSL_CERT_FILE'] = where()
try:
import ifaddr
except ImportError:
ifaddr = None
if platform.system() not in ('Windows', 'Microsoft', 'Darwin'):
# gi makes dbus available on Window but don't import it as unused.
@ -900,6 +906,29 @@ def free_space(path):
return disk_data.f_bavail * block_size
def is_interface(interface):
"""Check if interface is a valid IP or network adapter.
Args:
interface (str): The IP or interface name to test.
Returns:
bool: Whether interface is valid is not.
Examples:
Windows:
>>> is_interface('{7A30AE62-23ZA-3744-Z844-A5B042524871}')
>>> is_interface('127.0.0.1')
True
Linux:
>>> is_interface('lo')
>>> is_interface('127.0.0.1')
True
"""
return is_ip(interface) or is_interface_name(interface)
def is_ip(ip):
"""A test to see if 'ip' is a valid IPv4 or IPv6 address.
@ -935,15 +964,12 @@ def is_ipv4(ip):
"""
import socket
try:
if windows_check():
return socket.inet_aton(ip)
else:
return socket.inet_pton(socket.AF_INET, ip)
socket.inet_pton(socket.AF_INET, ip)
except OSError:
return False
else:
return True
def is_ipv6(ip):
@ -962,23 +988,51 @@ def is_ipv6(ip):
"""
try:
import ipaddress
except ImportError:
import socket
socket.inet_pton(socket.AF_INET6, ip)
except OSError:
return False
else:
return True
def is_interface_name(name):
"""Returns True if an interface name exists.
Args:
name (str): The Interface to test. eg. eth0 linux. GUID on Windows.
Returns:
bool: Whether name is valid or not.
Examples:
>>> is_interface_name("eth0")
True
>>> is_interface_name("{7A30AE62-23ZA-3744-Z844-A5B042524871}")
True
"""
if not windows_check():
try:
return socket.inet_pton(socket.AF_INET6, ip)
except (OSError, AttributeError):
if windows_check():
log.warning('Unable to verify IPv6 Address on Windows.')
socket.if_nametoindex(name)
except OSError:
pass
else:
return True
if ifaddr:
try:
adapters = ifaddr.get_adapters()
except OSError:
return True
else:
try:
return ipaddress.IPv6Address(decode_bytes(ip))
except ipaddress.AddressValueError:
pass
return any([name == a.name for a in adapters])
return False
if windows_check():
regex = '^{[0-9A-Z]{8}-([0-9A-Z]{4}-){3}[0-9A-Z]{12}}$'
return bool(re.search(regex, str(name)))
return True
def decode_bytes(byte_str, encoding='utf8'):

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@ -164,19 +164,25 @@ class Core(component.Component):
# store the one in the config so we can restore it on shutdown
self._old_listen_interface = None
if listen_interface:
if deluge.common.is_ip(listen_interface):
if deluge.common.is_interface(listen_interface):
self._old_listen_interface = self.config['listen_interface']
self.config['listen_interface'] = listen_interface
else:
log.error(
'Invalid listen interface (must be IP Address): %s',
'Invalid listen interface (must be IP Address or Interface Name): %s',
listen_interface,
)
self._old_outgoing_interface = None
if outgoing_interface:
if deluge.common.is_interface(outgoing_interface):
self._old_outgoing_interface = self.config['outgoing_interface']
self.config['outgoing_interface'] = outgoing_interface
else:
log.error(
'Invalid outgoing interface (must be IP Address or Interface Name): %s',
outgoing_interface,
)
# New release check information
self.__new_release = None

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@ -21,6 +21,8 @@ from deluge.common import (
ftime,
get_path_size,
is_infohash,
is_interface,
is_interface_name,
is_ip,
is_ipv4,
is_ipv6,
@ -116,6 +118,55 @@ class CommonTestCase(unittest.TestCase):
self.assertTrue(is_ipv6('2001:db8::'))
self.assertFalse(is_ipv6('2001:db8:'))
def get_windows_interface_name(self):
import winreg
# find a network card in the registery
with winreg.OpenKey(
winreg.HKEY_LOCAL_MACHINE,
r'SOFTWARE\Microsoft\Windows NT\CurrentVersion\NetworkCards',
) as key:
self.assertTrue(
winreg.QueryInfoKey(key)[0] > 0
) # must have at least 1 network card
network_card = winreg.EnumKey(key, 0)
# get GUID of network card
with winreg.OpenKey(
winreg.HKEY_LOCAL_MACHINE,
fr'SOFTWARE\Microsoft\Windows NT\CurrentVersion\NetworkCards\{network_card}',
) as key:
for i in range(1):
value = winreg.EnumValue(key, i)
if value[0] == 'ServiceName':
interface_name = value[1]
return interface_name
def test_is_interface_name(self):
if windows_check():
interface_name = self.get_windows_interface_name()
self.assertFalse(is_interface_name('2001:db8:'))
self.assertFalse(
is_interface_name('{THIS0000-IS00-ONLY-FOR0-TESTING00000}')
)
self.assertTrue(is_interface_name(interface_name))
else:
self.assertTrue(is_interface_name('lo'))
self.assertFalse(is_interface_name('127.0.0.1'))
self.assertFalse(is_interface_name('eth01101'))
def test_is_interface(self):
if windows_check():
interface_name = self.get_windows_interface_name()
self.assertTrue(is_interface('127.0.0.1'))
self.assertTrue(is_interface(interface_name))
self.assertFalse(is_interface('127'))
self.assertFalse(is_interface('{THIS0000-IS00-ONLY-FOR0-TESTING00000}'))
else:
self.assertTrue(is_interface('lo'))
self.assertTrue(is_interface('127.0.0.1'))
self.assertFalse(is_interface('127.'))
self.assertFalse(is_interface('eth01101'))
def test_version_split(self):
self.assertTrue(VersionSplit('1.2.2') == VersionSplit('1.2.2'))
self.assertTrue(VersionSplit('1.2.1') < VersionSplit('1.2.2'))

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@ -8,7 +8,7 @@
import logging
from deluge.common import is_ip
from deluge.common import is_interface
from deluge.decorators import overrides
from deluge.i18n import get_languages
from deluge.ui.client import client
@ -91,10 +91,11 @@ class BasePreferencePane(BaseInputPane, BaseWindow, PopupsHandler):
)
elif ipt.name == 'listen_interface':
listen_interface = ipt.get_value().strip()
if is_ip(listen_interface) or not listen_interface:
if is_interface(listen_interface) or not listen_interface:
conf_dict['listen_interface'] = listen_interface
elif ipt.name == 'outgoing_interface':
outgoing_interface = ipt.get_value().strip()
if is_interface(outgoing_interface) or not outgoing_interface:
conf_dict['outgoing_interface'] = outgoing_interface
elif ipt.name.startswith('proxy_'):
if ipt.name == 'proxy_type':

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@ -2573,8 +2573,8 @@ used sparingly.</property>
<object class="GtkEntry" id="entry_interface">
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="tooltip_text" translatable="yes">The IP address of the interface to listen for incoming bittorrent connections on. Leave this empty if you want to use the default.</property>
<property name="max_length">15</property>
<property name="tooltip_text" translatable="yes">IP address or network interface name to listen for incoming BitTorrent connections. Leave empty to use system default.</property>
<property name="max_length">40</property>
<property name="width_chars">15</property>
<property name="truncate_multiline">True</property>
<property name="primary_icon_activatable">False</property>
@ -2587,7 +2587,7 @@ used sparingly.</property>
<object class="GtkLabel" id="label110">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="label" translatable="yes">Incoming Address</property>
<property name="label" translatable="yes">Incoming Interface</property>
<attributes>
<attribute name="weight" value="bold"/>
</attributes>
@ -2812,9 +2812,9 @@ used sparingly.</property>
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="tooltip_text" translatable="yes">
The network interface name or IP address for outgoing BitTorrent connections. (Leave empty for default.)
IP address or network interface name for outgoing BitTorrent connections. Leave empty to use system default.
</property>
<property name="max_length">15</property>
<property name="max_length">40</property>
<property name="invisible_char">●</property>
<property name="width_chars">15</property>
<property name="truncate_multiline">True</property>

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@ -671,8 +671,12 @@ class Preferences(component.Component):
'chk_random_outgoing_ports'
).get_active()
incoming_address = self.builder.get_object('entry_interface').get_text().strip()
if deluge.common.is_ip(incoming_address) or not incoming_address:
if deluge.common.is_interface(incoming_address) or not incoming_address:
new_core_config['listen_interface'] = incoming_address
outgoing_address = (
self.builder.get_object('entry_outgoing_interface').get_text().strip()
)
if deluge.common.is_interface(outgoing_address) or not outgoing_address:
new_core_config['outgoing_interface'] = (
self.builder.get_object('entry_outgoing_interface').get_text().strip()
)

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@ -6,7 +6,7 @@ from PyInstaller.utils.hooks import collect_all, collect_submodules, copy_metada
datas = []
binaries = []
hiddenimports = ['pygame']
hiddenimports = ['pygame','ifaddr']
# Collect Meta Data
datas += copy_metadata('deluge', recursive=True)

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@ -13,3 +13,4 @@ windows-curses; sys_platform == 'win32'
zope.interface>=4.4.2
distro; 'linux' in sys_platform or 'bsd' in sys_platform
pygeoip
https://github.com/pydron/ifaddr/archive/37cb5334f392f12811d38d90ec891746e3247c76.zip

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@ -549,6 +549,7 @@ extras_require = {
'setproctitle',
'pillow',
'chardet',
'ifaddr',
]
}