2c4bf81464
Swift can now optionally be configured to allow requests to '/info', providing information about the swift cluster. Additionally a HMAC signed requests to '/info?swiftinfo_sig=<sign>&swiftinfo_expires=<expires>' can be configured allowing privileged access to more sensitive information not meant to be public. DocImpact Change-Id: I2379360fbfe3d9e9e8b25f1dc34517d199574495 Implements: blueprint capabilities Closes-Bug: #1245694
101 lines
3.3 KiB
Python
101 lines
3.3 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 time import time
|
|
|
|
from swift.common.utils import public, get_hmac, get_swift_info, json
|
|
from swift.proxy.controllers.base import Controller, delay_denial
|
|
from swift.common.swob import HTTPOk, HTTPForbidden, HTTPUnauthorized
|
|
|
|
|
|
class InfoController(Controller):
|
|
"""WSGI controller for info requests"""
|
|
server_type = 'Info'
|
|
|
|
def __init__(self, app, version, expose_info, disallowed_sections,
|
|
admin_key):
|
|
Controller.__init__(self, app)
|
|
self.expose_info = expose_info
|
|
self.disallowed_sections = disallowed_sections
|
|
self.admin_key = admin_key
|
|
self.allowed_hmac_methods = {
|
|
'HEAD': ['HEAD', 'GET'],
|
|
'GET': ['GET']}
|
|
|
|
@public
|
|
@delay_denial
|
|
def GET(self, req):
|
|
return self.GETorHEAD(req)
|
|
|
|
@public
|
|
@delay_denial
|
|
def HEAD(self, req):
|
|
return self.GETorHEAD(req)
|
|
|
|
@public
|
|
@delay_denial
|
|
def OPTIONS(self, req):
|
|
return HTTPOk(request=req, headers={'Allow': 'HEAD, GET, OPTIONS'})
|
|
|
|
def GETorHEAD(self, req):
|
|
"""Handler for HTTP GET/HEAD requests."""
|
|
"""
|
|
Handles requests to /info
|
|
Should return a WSGI-style callable (such as swob.Response).
|
|
|
|
:param req: swob.Request object
|
|
"""
|
|
if not self.expose_info:
|
|
return HTTPForbidden(request=req)
|
|
|
|
admin_request = False
|
|
sig = req.params.get('swiftinfo_sig', '')
|
|
expires = req.params.get('swiftinfo_expires', '')
|
|
|
|
if sig != '' or expires != '':
|
|
admin_request = True
|
|
if not self.admin_key:
|
|
return HTTPForbidden(request=req)
|
|
try:
|
|
expires = int(expires)
|
|
except ValueError:
|
|
return HTTPUnauthorized(request=req)
|
|
if expires < time():
|
|
return HTTPUnauthorized(request=req)
|
|
|
|
valid_sigs = []
|
|
for method in self.allowed_hmac_methods[req.method]:
|
|
valid_sigs.append(get_hmac(method,
|
|
'/info',
|
|
expires,
|
|
self.admin_key))
|
|
|
|
if sig not in valid_sigs:
|
|
return HTTPUnauthorized(request=req)
|
|
|
|
headers = {}
|
|
if 'Origin' in req.headers:
|
|
headers['Access-Control-Allow-Origin'] = req.headers['Origin']
|
|
headers['Access-Control-Expose-Headers'] = ', '.join(
|
|
['x-trans-id'])
|
|
|
|
info = json.dumps(get_swift_info(
|
|
admin=admin_request, disallowed_sections=self.disallowed_sections))
|
|
|
|
return HTTPOk(request=req,
|
|
headers=headers,
|
|
body=info,
|
|
content_type='application/json; charset=UTF-8')
|