181 lines
8.2 KiB
Python
181 lines
8.2 KiB
Python
# Copyright (c) 2010-2012 OpenStack Foundation
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
|
|
# implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
from six.moves.urllib.parse import unquote
|
|
|
|
from swift.account.utils import account_listing_response
|
|
from swift.common.middleware.acl import parse_acl, format_acl
|
|
from swift.common.utils import public
|
|
from swift.common.constraints import check_metadata
|
|
from swift.common.http import HTTP_NOT_FOUND, HTTP_GONE
|
|
from swift.proxy.controllers.base import Controller, clear_info_cache, \
|
|
set_info_cache
|
|
from swift.common.middleware import listing_formats
|
|
from swift.common.swob import HTTPBadRequest, HTTPMethodNotAllowed
|
|
from swift.common.request_helpers import get_sys_meta_prefix
|
|
|
|
|
|
class AccountController(Controller):
|
|
"""WSGI controller for account requests"""
|
|
server_type = 'Account'
|
|
|
|
def __init__(self, app, account_name, **kwargs):
|
|
super(AccountController, self).__init__(app)
|
|
self.account_name = unquote(account_name)
|
|
if not self.app.allow_account_management:
|
|
self.allowed_methods.remove('PUT')
|
|
self.allowed_methods.remove('DELETE')
|
|
|
|
def add_acls_from_sys_metadata(self, resp):
|
|
if resp.environ['REQUEST_METHOD'] in ('HEAD', 'GET', 'PUT', 'POST'):
|
|
prefix = get_sys_meta_prefix('account') + 'core-'
|
|
name = 'access-control'
|
|
(extname, intname) = ('x-account-' + name, prefix + name)
|
|
acl_dict = parse_acl(version=2, data=resp.headers.pop(intname))
|
|
if acl_dict: # treat empty dict as empty header
|
|
resp.headers[extname] = format_acl(
|
|
version=2, acl_dict=acl_dict)
|
|
|
|
def GETorHEAD(self, req):
|
|
"""Handler for HTTP GET/HEAD requests."""
|
|
length_limit = self.get_name_length_limit()
|
|
if len(self.account_name) > length_limit:
|
|
resp = HTTPBadRequest(request=req)
|
|
resp.body = b'Account name length of %d longer than %d' % \
|
|
(len(self.account_name), length_limit)
|
|
# Don't cache this. We know the account doesn't exist because
|
|
# the name is bad; we don't need to cache that because it's
|
|
# really cheap to recompute.
|
|
return resp
|
|
|
|
partition = self.app.account_ring.get_part(self.account_name)
|
|
concurrency = self.app.account_ring.replica_count \
|
|
if self.app.get_policy_options(None).concurrent_gets else 1
|
|
node_iter = self.app.iter_nodes(self.app.account_ring, partition,
|
|
self.logger, req)
|
|
params = req.params
|
|
params['format'] = 'json'
|
|
req.params = params
|
|
resp = self.GETorHEAD_base(
|
|
req, 'Account', node_iter, partition,
|
|
req.swift_entity_path.rstrip('/'), concurrency)
|
|
if resp.status_int == HTTP_NOT_FOUND:
|
|
if resp.headers.get('X-Account-Status', '').lower() == 'deleted':
|
|
resp.status = HTTP_GONE
|
|
elif self.app.account_autocreate:
|
|
# This is kind of a lie; we pretend like the account is
|
|
# there, but it's not. We'll create it as soon as something
|
|
# tries to write to it, but we don't need databases on disk
|
|
# to tell us that nothing's there.
|
|
#
|
|
# We set a header so that certain consumers can tell it's a
|
|
# fake listing. The important one is the PUT of a container
|
|
# to an autocreate account; the proxy checks to see if the
|
|
# account exists before actually performing the PUT and
|
|
# creates the account if necessary. If we feed it a perfect
|
|
# lie, it'll just try to create the container without
|
|
# creating the account, and that'll fail.
|
|
resp = account_listing_response(
|
|
self.account_name, req,
|
|
listing_formats.get_listing_content_type(req))
|
|
resp.headers['X-Backend-Fake-Account-Listing'] = 'yes'
|
|
|
|
# Cache this. We just made a request to a storage node and got
|
|
# up-to-date information for the account.
|
|
resp.headers['X-Backend-Recheck-Account-Existence'] = str(
|
|
self.app.recheck_account_existence)
|
|
set_info_cache(self.app, req.environ, self.account_name, None, resp)
|
|
|
|
if req.environ.get('swift_owner'):
|
|
self.add_acls_from_sys_metadata(resp)
|
|
else:
|
|
for header in self.app.swift_owner_headers:
|
|
resp.headers.pop(header, None)
|
|
return resp
|
|
|
|
@public
|
|
def PUT(self, req):
|
|
"""HTTP PUT request handler."""
|
|
if not self.app.allow_account_management:
|
|
return HTTPMethodNotAllowed(
|
|
request=req,
|
|
headers={'Allow': ', '.join(self.allowed_methods)})
|
|
error_response = check_metadata(req, 'account')
|
|
if error_response:
|
|
return error_response
|
|
length_limit = self.get_name_length_limit()
|
|
if len(self.account_name) > length_limit:
|
|
resp = HTTPBadRequest(request=req)
|
|
resp.body = b'Account name length of %d longer than %d' % \
|
|
(len(self.account_name), length_limit)
|
|
return resp
|
|
account_partition, accounts = \
|
|
self.app.account_ring.get_nodes(self.account_name)
|
|
headers = self.generate_request_headers(req, transfer=True)
|
|
clear_info_cache(self.app, req.environ, self.account_name)
|
|
resp = self.make_requests(
|
|
req, self.app.account_ring, account_partition, 'PUT',
|
|
req.swift_entity_path, [headers] * len(accounts))
|
|
self.add_acls_from_sys_metadata(resp)
|
|
return resp
|
|
|
|
@public
|
|
def POST(self, req):
|
|
"""HTTP POST request handler."""
|
|
length_limit = self.get_name_length_limit()
|
|
if len(self.account_name) > length_limit:
|
|
resp = HTTPBadRequest(request=req)
|
|
resp.body = b'Account name length of %d longer than %d' % \
|
|
(len(self.account_name), length_limit)
|
|
return resp
|
|
error_response = check_metadata(req, 'account')
|
|
if error_response:
|
|
return error_response
|
|
account_partition, accounts = \
|
|
self.app.account_ring.get_nodes(self.account_name)
|
|
headers = self.generate_request_headers(req, transfer=True)
|
|
clear_info_cache(self.app, req.environ, self.account_name)
|
|
resp = self.make_requests(
|
|
req, self.app.account_ring, account_partition, 'POST',
|
|
req.swift_entity_path, [headers] * len(accounts))
|
|
if resp.status_int == HTTP_NOT_FOUND and self.app.account_autocreate:
|
|
self.autocreate_account(req, self.account_name)
|
|
resp = self.make_requests(
|
|
req, self.app.account_ring, account_partition, 'POST',
|
|
req.swift_entity_path, [headers] * len(accounts))
|
|
self.add_acls_from_sys_metadata(resp)
|
|
return resp
|
|
|
|
@public
|
|
def DELETE(self, req):
|
|
"""HTTP DELETE request handler."""
|
|
# Extra safety in case someone typos a query string for an
|
|
# account-level DELETE request that was really meant to be caught by
|
|
# some middleware.
|
|
if req.query_string:
|
|
return HTTPBadRequest(request=req)
|
|
if not self.app.allow_account_management:
|
|
return HTTPMethodNotAllowed(
|
|
request=req,
|
|
headers={'Allow': ', '.join(self.allowed_methods)})
|
|
account_partition, accounts = \
|
|
self.app.account_ring.get_nodes(self.account_name)
|
|
headers = self.generate_request_headers(req)
|
|
clear_info_cache(self.app, req.environ, self.account_name)
|
|
resp = self.make_requests(
|
|
req, self.app.account_ring, account_partition, 'DELETE',
|
|
req.swift_entity_path, [headers] * len(accounts))
|
|
return resp
|