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# Copyright (C) 2007-2011 Canonical Ltd
#
# 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.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
"""Directory lookup that uses Launchpad."""
from __future__ import absolute_import
from urlparse import urlsplit
import xmlrpclib
from bzrlib import (
debug,
errors,
trace,
transport,
)
from bzrlib.i18n import gettext
from bzrlib.plugins.launchpad.lp_registration import (
LaunchpadService, ResolveLaunchpadPathRequest)
from bzrlib.plugins.launchpad.account import get_lp_login
# As bzrlib.transport.remote may not be loaded yet, make sure bzr+ssh
# is counted as a netloc protocol.
transport.register_urlparse_netloc_protocol('bzr+ssh')
transport.register_urlparse_netloc_protocol('lp')
_ubuntu_series_shortcuts = {
'n': 'natty',
'm': 'maverick',
'l': 'lucid',
'k': 'karmic',
'j': 'jaunty',
'h': 'hardy',
'd': 'dapper',
}
class LaunchpadDirectory(object):
def _requires_launchpad_login(self, scheme, netloc, path, query,
fragment):
"""Does the URL require a Launchpad login in order to be reached?
The URL is specified by its parsed components, as returned from
urlsplit.
"""
return (scheme in ('bzr+ssh', 'sftp')
and (netloc.endswith('launchpad.net')
or netloc.endswith('launchpad.dev')))
def look_up(self, name, url):
"""See DirectoryService.look_up"""
return self._resolve(url)
def _resolve_locally(self, path, url, _request_factory):
# This is the best I could work out about XMLRPC. If an lp: url
# includes ~user, then it is specially validated. Otherwise, it is just
# sent to +branch/$path.
_, netloc, _, _, _ = urlsplit(url)
if netloc == '':
netloc = LaunchpadService.DEFAULT_INSTANCE
base_url = LaunchpadService.LAUNCHPAD_DOMAINS[netloc]
base = 'bzr+ssh://bazaar.%s/' % (base_url,)
maybe_invalid = False
if path.startswith('~'):
# A ~user style path, validate it a bit.
# If a path looks fishy, fall back to asking XMLRPC to
# resolve it for us. That way we still get their nicer error
# messages.
parts = path.split('/')
if (len(parts) < 3
or (parts[1] in ('ubuntu', 'debian') and len(parts) < 5)):
# This special case requires 5-parts to be valid.
maybe_invalid = True
else:
base += '+branch/'
if maybe_invalid:
return self._resolve_via_xmlrpc(path, url, _request_factory)
return {'urls': [base + path]}
def _resolve_via_xmlrpc(self, path, url, _request_factory):
service = LaunchpadService.for_url(url)
resolve = _request_factory(path)
try:
result = resolve.submit(service)
except xmlrpclib.Fault, fault:
raise errors.InvalidURL(
path=url, extra=fault.faultString)
return result
def _update_url_scheme(self, url):
# Do ubuntu: and debianlp: expansions.
scheme, netloc, path, query, fragment = urlsplit(url)
if scheme in ('ubuntu', 'debianlp'):
if scheme == 'ubuntu':
distro = 'ubuntu'
distro_series = _ubuntu_series_shortcuts
elif scheme == 'debianlp':
distro = 'debian'
# No shortcuts for Debian distroseries.
distro_series = {}
else:
raise AssertionError('scheme should be ubuntu: or debianlp:')
# Split the path. It's either going to be 'project' or
# 'series/project', but recognize that it may be a series we don't
# know about.
path_parts = path.split('/')
if len(path_parts) == 1:
# It's just a project name.
lp_url_template = 'lp:%(distro)s/%(project)s'
project = path_parts[0]
series = None
elif len(path_parts) == 2:
# It's a series and project.
lp_url_template = 'lp:%(distro)s/%(series)s/%(project)s'
series, project = path_parts
else:
# There are either 0 or > 2 path parts, neither of which is
# supported for these schemes.
raise errors.InvalidURL('Bad path: %s' % url)
# Expand any series shortcuts, but keep unknown series.
series = distro_series.get(series, series)
# Hack the url and let the following do the final resolution.
url = lp_url_template % dict(
distro=distro,
series=series,
project=project)
scheme, netloc, path, query, fragment = urlsplit(url)
return url, path
def _expand_user(self, path, url, lp_login):
if path.startswith('~/'):
if lp_login is None:
raise errors.InvalidURL(path=url,
extra='Cannot resolve "~" to your username.'
' See "bzr help launchpad-login"')
path = '~' + lp_login + path[1:]
return path
def _resolve(self, url,
_request_factory=ResolveLaunchpadPathRequest,
_lp_login=None):
"""Resolve the base URL for this transport."""
url, path = self._update_url_scheme(url)
if _lp_login is None:
_lp_login = get_lp_login()
path = path.strip('/')
path = self._expand_user(path, url, _lp_login)
if _lp_login is not None:
result = self._resolve_locally(path, url, _request_factory)
if 'launchpad' in debug.debug_flags:
local_res = result
result = self._resolve_via_xmlrpc(path, url, _request_factory)
trace.note(gettext(
'resolution for {0}\n local: {1}\n remote: {2}').format(
url, local_res['urls'], result['urls']))
else:
result = self._resolve_via_xmlrpc(path, url, _request_factory)
if 'launchpad' in debug.debug_flags:
trace.mutter("resolve_lp_path(%r) == %r", url, result)
_warned_login = False
for url in result['urls']:
scheme, netloc, path, query, fragment = urlsplit(url)
if self._requires_launchpad_login(scheme, netloc, path, query,
fragment):
# Only accept launchpad.net bzr+ssh URLs if we know
# the user's Launchpad login:
if _lp_login is not None:
break
if _lp_login is None:
if not _warned_login:
trace.warning(
'You have not informed bzr of your Launchpad ID, and you must do this to\n'
'write to Launchpad or access private data. See "bzr help launchpad-login".')
_warned_login = True
else:
# Use the URL if we can create a transport for it.
try:
transport.get_transport(url)
except (errors.PathError, errors.TransportError):
pass
else:
break
else:
raise errors.InvalidURL(path=url, extra='no supported schemes')
return url
def get_test_permutations():
# Since this transport doesn't do anything once opened, it's not subjected
# to the usual transport tests.
return []
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