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This will handle sources files with Deb822 format. Closes: #214. Tests: - Enable package download through Tor. "tor+" is prepended to sources URL. - Disable package download through Tor. "tor+" is removed from sources URL. Signed-off-by: James Valleroy <jvalleroy@mailbox.org> Reviewed-by: Sunil Mohan Adapa <sunil@medhas.org>
103 lines
3.3 KiB
Python
103 lines
3.3 KiB
Python
# SPDX-License-Identifier: AGPL-3.0-or-later
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"""Tor utility functions."""
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import itertools
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import augeas
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from plinth import app as app_module
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from plinth.daemon import app_is_running
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from plinth.modules.names.components import DomainName
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from . import privileged
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APT_SOURCES_URI_PATHS = ('/files/etc/apt/sources.list/*/uri',
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'/files/etc/apt/sources.list.d/*/*/uri',
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'/files/etc/apt/sources.list.d/*/*/URIs/*')
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APT_TOR_PREFIX = 'tor+'
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def get_status(initialized=True):
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"""Return current Tor status."""
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status = privileged.get_status()
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hs_info = status['hidden_service']
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hs_services = []
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if hs_info['hostname']:
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try:
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domain = DomainName.get('domain-tor-' + hs_info['hostname'])
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except KeyError:
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pass
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else:
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hs_services = domain.get_readable_services()
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# Filter out obfs3/4 ports when bridge relay is disabled
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ports = {
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service_type: port
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for service_type, port in status['ports'].items()
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if service_type not in ['obfs4', 'obfs3']
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or status['bridge_relay_enabled']
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}
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app = app_module.App.get('tor')
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return {
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'enabled': app.is_enabled() if initialized else False,
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'is_running': app_is_running(app) if initialized else False,
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'use_upstream_bridges': status['use_upstream_bridges'],
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'upstream_bridges': status['upstream_bridges'],
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'relay_enabled': status['relay_enabled'],
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'bridge_relay_enabled': status['bridge_relay_enabled'],
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'ports': ports,
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'hs_enabled': hs_info['enabled'],
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'hs_status': hs_info['status'],
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'hs_hostname': hs_info['hostname'],
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'hs_ports': hs_info['ports'],
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'hs_services': hs_services,
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'apt_transport_tor_enabled': is_apt_transport_tor_enabled()
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}
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def iter_apt_uris(aug):
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"""Iterate over all the APT source URIs."""
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return itertools.chain.from_iterable(
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[aug.match(path) for path in APT_SOURCES_URI_PATHS])
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def get_augeas():
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"""Return an instance of Augeaus for processing APT configuration."""
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aug = augeas.Augeas(flags=augeas.Augeas.NO_LOAD +
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augeas.Augeas.NO_MODL_AUTOLOAD)
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aug.set('/augeas/load/Aptsources/lens', 'Aptsources.lns')
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aug.set('/augeas/load/Aptsources/incl[last() + 1]',
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'/etc/apt/sources.list')
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aug.set('/augeas/load/Aptsources/incl[last() + 1]',
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'/etc/apt/sources.list.d/*.list')
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aug.set('/augeas/load/Aptsources822/lens', 'Aptsources822.lns')
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aug.set('/augeas/load/Aptsources822/incl[last() + 1]',
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'/etc/apt/sources.list.d/*.sources')
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aug.load()
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# Check for any errors in parsing sources lists.
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if aug.match('/augeas/files/etc/apt/sources.list/error') or \
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aug.match('/augeas/files/etc/apt/sources.list.d//error'):
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raise Exception('Error parsing sources list')
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return aug
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def is_apt_transport_tor_enabled():
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"""Return whether APT is set to download packages over Tor."""
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try:
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aug = get_augeas()
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except Exception:
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# If there was an error with parsing.
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return False
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for uri_path in iter_apt_uris(aug):
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uri = aug.get(uri_path)
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if not uri.startswith(APT_TOR_PREFIX) and \
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(uri.startswith('http://') or uri.startswith('https://')):
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return False
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return True
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