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# Copyright (C) 2007 Canonical Ltd
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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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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# 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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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# 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 this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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"""Transport indirection that uses Launchpad as a directory lookup.
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When the transport is opened, it immediately redirects to a url
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on Launchpad, which can then either serve the branch itself or redirect
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from urlparse import urlsplit, urlunsplit
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from bzrlib.transport import (
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register_urlparse_netloc_protocol,
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from bzrlib.plugins.launchpad.lp_registration import (
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LaunchpadService, ResolveLaunchpadPathRequest)
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from bzrlib.plugins.launchpad.account import get_lp_login
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# As bzrlib.transport.remote may not be loaded yet, make sure bzr+ssh
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# is counted as a netloc protocol.
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register_urlparse_netloc_protocol('bzr+ssh')
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register_urlparse_netloc_protocol('lp')
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class LaunchpadTransport(Transport):
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"""lp:/// URL transport
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This transport redirects requests to the real branch location
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after resolving the URL via an XMLRPC request to Launchpad.
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def __init__(self, base):
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super(LaunchpadTransport, self).__init__(base)
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# We only support URLs without a netloc
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self.lp_instance = urlsplit(base)[1]
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if self.lp_instance == '':
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self.lp_instance = None
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elif self.lp_instance not in LaunchpadService.LAUNCHPAD_INSTANCE:
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raise errors.InvalidURL(path=base)
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def _requires_launchpad_login(self, scheme, netloc, path, query,
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"""Does the URL require a Launchpad login in order to be reached?
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The URL is specified by its parsed components, as returned from
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return (scheme in ('bzr+ssh', 'sftp')
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and (netloc.endswith('launchpad.net')
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or netloc.endswith('launchpad.dev')))
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def _resolve(self, abspath,
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_request_factory=ResolveLaunchpadPathRequest,
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"""Resolve the base URL for this transport."""
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path = urlsplit(abspath)[2].lstrip('/')
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# Perform an XMLRPC request to resolve the path
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resolve = _request_factory(path)
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service = LaunchpadService(lp_instance=self.lp_instance)
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result = resolve.submit(service)
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except xmlrpclib.Fault, fault:
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raise errors.InvalidURL(
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path=abspath, extra=fault.faultString)
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if 'launchpad' in debug.debug_flags:
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trace.mutter("resolve_lp_path(%r) == %r", path, result)
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_lp_login = get_lp_login()
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for url in result['urls']:
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scheme, netloc, path, query, fragment = urlsplit(url)
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if self._requires_launchpad_login(scheme, netloc, path, query,
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# Only accept launchpad.net bzr+ssh URLs if we know
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# the user's Launchpad login:
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if _lp_login is None:
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url = urlunsplit((scheme, '%s@%s' % (_lp_login, netloc),
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path, query, fragment))
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# Use the URL if we can create a transport for it.
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except (errors.PathError, errors.TransportError):
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raise errors.InvalidURL(path=abspath,
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extra='no supported schemes')
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def _request_redirect(self, relpath):
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source = urlutils.join(self.base, relpath)
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# Split the source location into the branch location, and the
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# extra path components.
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pos = source.find('/.bzr/')
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branchpath = source[:pos]
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target = self._resolve(branchpath) + extra
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raise errors.RedirectRequested(
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def get(self, relpath):
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"""See Transport.get()."""
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self._request_redirect(relpath)
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def mkdir(self, relpath, mode=None):
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"""See Transport.mkdir()."""
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self._request_redirect(relpath)
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def get_test_permutations():
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# Since this transport doesn't do anything once opened, it's not subjected
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# to the usual transport tests.