1
# Copyright (C) 2006-2017 Canonical Ltd
3
# This program is free software; you can redistribute it and/or modify
4
# it under the terms of the GNU General Public License as published by
5
# the Free Software Foundation; either version 2 of the License, or
6
# (at your option) any later version.
8
# This program is distributed in the hope that it will be useful,
9
# but WITHOUT ANY WARRANTY; without even the implied warranty of
10
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11
# GNU General Public License for more details.
13
# You should have received a copy of the GNU General Public License
14
# along with this program; if not, write to the Free Software
15
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17
from __future__ import absolute_import
19
from io import BytesIO
23
from urllib.parse import urlsplit, urlunsplit
25
from urlparse import urlsplit, urlunsplit # noqa: F401
28
from xmlrpc.client import (
29
__version__ as xmlrpc_version,
35
except ImportError: # python < 3
36
from xmlrpclib import (
37
__version__ as xmlrpc_version,
47
__version__ as _breezy_version,
49
from ...transport import http, get_transport
54
LAUNCHPAD_BAZAAR_DOMAINS,
60
export BRZ_LP_XMLRPC_URL=http://xmlrpc.staging.launchpad.net/bazaar/
64
class InvalidURL(errors.PathError):
66
_fmt = 'Invalid url supplied to transport: "%(path)s"%(extra)s'
69
class InvalidLaunchpadInstance(errors.BzrError):
71
_fmt = "%(lp_instance)s is not a valid Launchpad instance."
73
def __init__(self, lp_instance):
74
errors.BzrError.__init__(self, lp_instance=lp_instance)
77
class NotLaunchpadBranch(errors.BzrError):
79
_fmt = "%(url)s is not registered on Launchpad."
81
def __init__(self, url):
82
errors.BzrError.__init__(self, url=url)
85
class XMLRPCTransport(Transport):
87
def __init__(self, scheme):
88
Transport.__init__(self)
91
self._possible_bzr_transports = []
93
def request(self, host, handler, request_body, verbose=0):
94
self.verbose = verbose
95
url = self._scheme + "://" + host + handler
96
transport = get_transport(
97
url, possible_transports=self._possible_bzr_transports)
98
response = transport.request("POST", url, body=request_body, headers={
99
"Content-Type": "text/xml"})
101
if response.status != 200:
102
raise ProtocolError(url, response.status,
103
response.text, response.headers)
104
return self.parse_response(BytesIO(response.data))
107
class LaunchpadService(object):
108
"""A service to talk to Launchpad via XMLRPC.
110
See http://wiki.bazaar.canonical.com/Specs/LaunchpadRpc for the methods we
114
# NB: these should always end in a slash to avoid xmlrpclib appending
116
LAUNCHPAD_INSTANCE = {}
117
for instance, domain in LAUNCHPAD_DOMAINS.items():
118
LAUNCHPAD_INSTANCE[instance] = 'https://xmlrpc.%s/bazaar/' % domain
120
DEFAULT_SERVICE_URL = LAUNCHPAD_INSTANCE[DEFAULT_INSTANCE]
123
registrant_email = None
124
registrant_password = None
126
def __init__(self, transport=None, lp_instance=None):
127
"""Construct a new service talking to the launchpad rpc server"""
128
self._lp_instance = lp_instance
129
if transport is None:
130
uri_type = urlutils.parse_url(self.service_url)[0]
131
transport = XMLRPCTransport(uri_type)
132
self.transport = transport
135
def service_url(self):
136
"""Return the http or https url for the xmlrpc server.
138
This does not include the username/password credentials.
140
key = 'BRZ_LP_XMLRPC_URL'
141
if key in os.environ:
142
return os.environ[key]
143
elif self._lp_instance is not None:
145
return self.LAUNCHPAD_INSTANCE[self._lp_instance]
147
raise InvalidLaunchpadInstance(self._lp_instance)
149
return self.DEFAULT_SERVICE_URL
152
def for_url(cls, url, **kwargs):
153
"""Return the Launchpad service corresponding to the given URL."""
154
result = urlsplit(url)
155
lp_instance = result[1]
156
if lp_instance == '':
158
elif lp_instance not in cls.LAUNCHPAD_INSTANCE:
159
raise InvalidURL(url)
160
return cls(lp_instance=lp_instance, **kwargs)
163
"""Return the proxy for XMLRPC requests."""
164
url = self.service_url
165
return ServerProxy(url, transport=self.transport)
167
def send_request(self, method_name, method_params):
168
proxy = self.get_proxy()
169
method = getattr(proxy, method_name)
171
result = method(*method_params)
172
except ProtocolError as e:
174
# TODO: This can give a ProtocolError representing a 301 error, whose
175
# e.headers['location'] tells where to go and e.errcode==301; should
176
# probably log something and retry on the new url.
177
raise NotImplementedError("should resend request to %s, but this isn't implemented"
178
% e.headers.get('Location', 'NO-LOCATION-PRESENT'))
180
# we don't want to print the original message because its
181
# str representation includes the plaintext password.
182
# TODO: print more headers to help in tracking down failures
183
raise errors.BzrError("xmlrpc protocol error connecting to %s: %s %s"
184
% (self.service_url, e.errcode, e.errmsg))
185
except socket.gaierror as e:
186
raise errors.ConnectionError(
187
"Could not resolve '%s'" % self.domain,
193
if self._lp_instance is None:
194
instance = DEFAULT_INSTANCE
196
instance = self._lp_instance
197
return LAUNCHPAD_DOMAINS[instance]
199
def _guess_branch_path(self, branch_url, _request_factory=None):
200
scheme, hostinfo, path = urlsplit(branch_url)[:3]
201
if _request_factory is None:
202
_request_factory = ResolveLaunchpadPathRequest
204
resolve = _request_factory(path)
206
result = resolve.submit(self)
207
except Fault as fault:
208
raise InvalidURL(branch_url, str(fault))
209
branch_url = result['urls'][0]
210
path = urlsplit(branch_url)[2]
212
if hostinfo not in LAUNCHPAD_BAZAAR_DOMAINS:
213
raise NotLaunchpadBranch(branch_url)
214
return path.lstrip('/')
216
def get_web_url_from_branch_url(self, branch_url, _request_factory=None):
217
"""Get the Launchpad web URL for the given branch URL.
219
:raise InvalidURL: if 'branch_url' cannot be identified as a
220
Launchpad branch URL.
221
:return: The URL of the branch on Launchpad.
223
path = self._guess_branch_path(branch_url, _request_factory)
224
return urlutils.join('https://code.%s' % self.domain, path)
227
class BaseRequest(object):
228
"""Base request for talking to a XMLRPC server."""
230
# Set this to the XMLRPC method name.
233
def _request_params(self):
234
"""Return the arguments to pass to the method"""
235
raise NotImplementedError(self._request_params)
237
def submit(self, service):
238
"""Submit request to Launchpad XMLRPC server.
240
:param service: LaunchpadService indicating where to send the request.
242
return service.send_request(self._methodname, self._request_params())
245
class DryRunLaunchpadService(LaunchpadService):
246
"""Service that just absorbs requests without sending to server."""
248
def send_request(self, method_name, method_params):
252
class ResolveLaunchpadPathRequest(BaseRequest):
253
"""Request to resolve the path component of an lp: URL."""
255
_methodname = 'resolve_lp_path'
257
def __init__(self, path):
259
raise InvalidURL(url=path, extra="You must specify a project.")
262
def _request_params(self):
263
"""Return xmlrpc request parameters"""