From af2cbe8a5bec2b7971de137416d6e62ac1b96498 Mon Sep 17 00:00:00 2001 From: Prashanth Pai Date: Mon, 23 Sep 2013 11:47:21 +0530 Subject: Minor swiftkerbauth changes * Replaced python-webob with swift.common.swob * Use swift memcached instead of python memcached * Added optional debugging headers to swift-auth script * Swiftkerbauth and Apachekerbauth are now a single RPM * Updates to httpd conf file to specify Kerberos principal * Added setupy.py, makerpm.sh, .gitignore and MANIFEST.in * RPM is now generated by bdist_rpm using setup.py and not from spec files TODO -> Documentation changes in doc/ * Steps to setup kerberos environment * Swiftkerbauth usage and examples -> Testing swiftkerbauth * Investigate borrowing tests from tempauth.py and its dependencies * Write a python client script to test swiftkerbauth Signed-off-by: Prashanth Pai --- swiftkerbauth/__init__.py | 17 ++ swiftkerbauth/build.sh | 7 - swiftkerbauth/kerbauth.py | 328 +++++++++++++++++++++++++ swiftkerbauth/swiftkerbauth.spec | 54 ----- swiftkerbauth/swiftkerbauth/swiftkerbauth.py | 345 --------------------------- 5 files changed, 345 insertions(+), 406 deletions(-) create mode 100644 swiftkerbauth/__init__.py delete mode 100755 swiftkerbauth/build.sh create mode 100644 swiftkerbauth/kerbauth.py delete mode 100644 swiftkerbauth/swiftkerbauth.spec delete mode 100644 swiftkerbauth/swiftkerbauth/swiftkerbauth.py (limited to 'swiftkerbauth') diff --git a/swiftkerbauth/__init__.py b/swiftkerbauth/__init__.py new file mode 100644 index 0000000..eaa1d88 --- /dev/null +++ b/swiftkerbauth/__init__.py @@ -0,0 +1,17 @@ +#!/usr/bin/env python +# Copyright (c) 2013 Red Hat, Inc. +# +# 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. + +__version__ = "1.0.0" diff --git a/swiftkerbauth/build.sh b/swiftkerbauth/build.sh deleted file mode 100755 index 0daff96..0000000 --- a/swiftkerbauth/build.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/bash - -tar -cz --exclude=.svn -f ~/rpmbuild/SOURCES/swiftkerbauth.tar.gz swiftkerbauth - -rpmbuild --target noarch --clean -bb swiftkerbauth.spec - -rm ~/rpmbuild/SOURCES/swiftkerbauth.tar.gz diff --git a/swiftkerbauth/kerbauth.py b/swiftkerbauth/kerbauth.py new file mode 100644 index 0000000..a37f1f6 --- /dev/null +++ b/swiftkerbauth/kerbauth.py @@ -0,0 +1,328 @@ +# Copyright (c) 2013 Red Hat, Inc. +# +# 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 traceback import format_exc +from eventlet import Timeout + +from swift.common.swob import Request +from swift.common.swob import HTTPBadRequest, HTTPForbidden, HTTPNotFound, \ + HTTPSeeOther + +from swift.common.middleware.acl import clean_acl, parse_acl, referrer_allowed +from swift.common.utils import cache_from_env, get_logger, \ + split_path, config_true_value + + +class KerbAuth(object): + """ + Test authentication and authorization system. + + Add to your pipeline in proxy-server.conf, such as:: + + [pipeline:main] + pipeline = catch_errors cache kerbauth proxy-server + + Set account auto creation to true in proxy-server.conf:: + + [app:proxy-server] + account_autocreate = true + + And add a kerbauth filter section, such as:: + + [filter:kerbauth] + use = egg:swift#kerbauth + + See the proxy-server.conf-sample for more information. + + :param app: The next WSGI app in the pipeline + :param conf: The dict of configuration values + """ + + def __init__(self, app, conf): + self.app = app + self.conf = conf + self.logger = get_logger(conf, log_route='kerbauth') + self.log_headers = config_true_value(conf.get('log_headers', 'f')) + self.reseller_prefix = conf.get('reseller_prefix', 'AUTH').strip() + if self.reseller_prefix and self.reseller_prefix[-1] != '_': + self.reseller_prefix += '_' + self.logger.set_statsd_prefix('kerbauth.%s' % ( + self.reseller_prefix if self.reseller_prefix else 'NONE',)) + self.auth_prefix = conf.get('auth_prefix', '/auth/') + if not self.auth_prefix or not self.auth_prefix.strip('/'): + self.logger.warning('Rewriting invalid auth prefix "%s" to ' + '"/auth/" (Non-empty auth prefix path ' + 'is required)' % self.auth_prefix) + self.auth_prefix = '/auth/' + if self.auth_prefix[0] != '/': + self.auth_prefix = '/' + self.auth_prefix + if self.auth_prefix[-1] != '/': + self.auth_prefix += '/' + self.token_life = int(conf.get('token_life', 86400)) + self.allow_overrides = config_true_value( + conf.get('allow_overrides', 't')) + self.storage_url_scheme = conf.get('storage_url_scheme', 'default') + self.ext_authentication_url = conf.get('ext_authentication_url') + if not self.ext_authentication_url: + raise RuntimeError("Missing filter parameter ext_authentication_" + "url in /etc/swift/proxy-server.conf") + + def __call__(self, env, start_response): + """ + Accepts a standard WSGI application call, authenticating the request + and installing callback hooks for authorization and ACL header + validation. For an authenticated request, REMOTE_USER will be set to a + comma separated list of the user's groups. + + If the request matches the self.auth_prefix, the request will be + routed through the internal auth request handler (self.handle). + This is to handle granting tokens, etc. + """ + if self.allow_overrides and env.get('swift.authorize_override', False): + return self.app(env, start_response) + if env.get('PATH_INFO', '').startswith(self.auth_prefix): + return self.handle(env, start_response) + token = env.get('HTTP_X_AUTH_TOKEN', env.get('HTTP_X_STORAGE_TOKEN')) + if token and token.startswith(self.reseller_prefix): + groups = self.get_groups(env, token) + if groups: + user = groups and groups.split(',', 1)[0] or '' + trans_id = env.get('swift.trans_id') + self.logger.debug('User: %s uses token %s (trans_id %s)' % + (user, token, trans_id)) + env['REMOTE_USER'] = groups + env['swift.authorize'] = self.authorize + env['swift.clean_acl'] = clean_acl + if '.reseller_admin' in groups: + env['reseller_request'] = True + else: + # Invalid token (may be expired) + return HTTPSeeOther( + location=self.ext_authentication_url)(env, start_response) + else: + # With a non-empty reseller_prefix, I would like to be called + # back for anonymous access to accounts I know I'm the + # definitive auth for. + try: + version, rest = split_path(env.get('PATH_INFO', ''), + 1, 2, True) + except ValueError: + version, rest = None, None + self.logger.increment('errors') + # Not my token, not my account, I can't authorize this request, + # deny all is a good idea if not already set... + if 'swift.authorize' not in env: + env['swift.authorize'] = self.denied_response + + return self.app(env, start_response) + + def get_groups(self, env, token): + """ + Get groups for the given token. + + :param env: The current WSGI environment dictionary. + :param token: Token to validate and return a group string for. + + :returns: None if the token is invalid or a string containing a comma + separated list of groups the authenticated user is a member + of. The first group in the list is also considered a unique + identifier for that user. + """ + groups = None + memcache_client = cache_from_env(env) + if not memcache_client: + raise Exception('Memcache required') + memcache_token_key = '%s/token/%s' % (self.reseller_prefix, token) + cached_auth_data = memcache_client.get(memcache_token_key) + if cached_auth_data: + expires, groups = cached_auth_data + if expires < time(): + groups = None + + return groups + + def authorize(self, req): + """ + Returns None if the request is authorized to continue or a standard + WSGI response callable if not. + + Assumes that user groups are all lower case, which is true when Red Hat + Enterprise Linux Identity Management is used. + """ + try: + version, account, container, obj = req.split_path(1, 4, True) + except ValueError: + self.logger.increment('errors') + return HTTPNotFound(request=req) + + if not account or not account.startswith(self.reseller_prefix): + self.logger.debug("Account name: %s doesn't start with " + "reseller_prefix: %s." + % (account, self.reseller_prefix)) + return self.denied_response(req) + + user_groups = (req.remote_user or '').split(',') + account_user = user_groups[1] if len(user_groups) > 1 else None + # If the user is in the reseller_admin group for our prefix, he gets + # full access to all accounts we manage. For the default reseller + # prefix, the group name is auth_reseller_admin. + admin_group = ("%sreseller_admin" % self.reseller_prefix).lower() + if admin_group in user_groups and \ + account != self.reseller_prefix and \ + account[len(self.reseller_prefix)] != '.': + req.environ['swift_owner'] = True + return None + + # The "account" is part of the request URL, and already contains the + # reseller prefix, like in "/v1/AUTH_vol1/pictures/pic1.png". + if account.lower() in user_groups and \ + (req.method not in ('DELETE', 'PUT') or container): + # If the user is admin for the account and is not trying to do an + # account DELETE or PUT... + req.environ['swift_owner'] = True + self.logger.debug("User %s has admin authorizing." + % account_user) + return None + + if (req.environ.get('swift_sync_key') + and (req.environ['swift_sync_key'] == + req.headers.get('x-container-sync-key', None)) + and 'x-timestamp' in req.headers): + self.logger.debug("Allow request with container sync-key: %s." + % req.environ['swift_sync_key']) + return None + + if req.method == 'OPTIONS': + #allow OPTIONS requests to proceed as normal + self.logger.debug("Allow OPTIONS request.") + return None + + referrers, groups = parse_acl(getattr(req, 'acl', None)) + + if referrer_allowed(req.referer, referrers): + if obj or '.rlistings' in groups: + self.logger.debug("Allow authorizing %s via referer ACL." + % req.referer) + return None + + for user_group in user_groups: + if user_group in groups: + self.logger.debug("User %s allowed in ACL: %s authorizing." + % (account_user, user_group)) + return None + + return self.denied_response(req) + + def denied_response(self, req): + """ + Returns a standard WSGI response callable with the status of 403 or 401 + depending on whether the REMOTE_USER is set or not. + """ + if req.remote_user: + self.logger.increment('forbidden') + return HTTPForbidden(request=req) + else: + return HTTPSeeOther(location=self.ext_authentication_url) + + def handle(self, env, start_response): + """ + WSGI entry point for auth requests (ones that match the + self.auth_prefix). + Wraps env in swob.Request object and passes it down. + + :param env: WSGI environment dictionary + :param start_response: WSGI callable + """ + try: + req = Request(env) + if self.auth_prefix: + req.path_info_pop() + req.bytes_transferred = '-' + req.client_disconnect = False + if 'x-storage-token' in req.headers and \ + 'x-auth-token' not in req.headers: + req.headers['x-auth-token'] = req.headers['x-storage-token'] + return self.handle_request(req)(env, start_response) + except (Exception, Timeout): + print "EXCEPTION IN handle: %s: %s" % (format_exc(), env) + self.logger.increment('errors') + start_response('500 Server Error', + [('Content-Type', 'text/plain')]) + return ['Internal server error.\n'] + + def handle_request(self, req): + """ + Entry point for auth requests (ones that match the self.auth_prefix). + Should return a WSGI-style callable (such as webob.Response). + + :param req: swob.Request object + """ + req.start_time = time() + handler = None + try: + version, account, user, _junk = req.split_path(1, 4, True) + except ValueError: + self.logger.increment('errors') + return HTTPNotFound(request=req) + if version in ('v1', 'v1.0', 'auth'): + if req.method == 'GET': + handler = self.handle_get_token + if not handler: + self.logger.increment('errors') + req.response = HTTPBadRequest(request=req) + else: + req.response = handler(req) + return req.response + + def handle_get_token(self, req): + """ + Handles the various `request for token and service end point(s)` calls. + There are various formats to support the various auth servers in the + past. Examples:: + + GET /v1//auth + GET /auth + GET /v1.0 + + All formats require GSS (Kerberos) authentication. + + On successful authentication, the response will have X-Auth-Token + set to the token to use with Swift. + + :param req: The swob.Request to process. + :returns: swob.Response, 2xx on success with data set as explained + above. + """ + # Validate the request info + try: + pathsegs = split_path(req.path_info, 1, 3, True) + except ValueError: + self.logger.increment('errors') + return HTTPNotFound(request=req) + if not ((pathsegs[0] == 'v1' and pathsegs[2] == 'auth') + or pathsegs[0] in ('auth', 'v1.0')): + return HTTPBadRequest(request=req) + + return HTTPSeeOther(location=self.ext_authentication_url) + + +def filter_factory(global_conf, **local_conf): + """Returns a WSGI filter app for use with paste.deploy.""" + conf = global_conf.copy() + conf.update(local_conf) + + def auth_filter(app): + return KerbAuth(app, conf) + return auth_filter diff --git a/swiftkerbauth/swiftkerbauth.spec b/swiftkerbauth/swiftkerbauth.spec deleted file mode 100644 index f01dc8d..0000000 --- a/swiftkerbauth/swiftkerbauth.spec +++ /dev/null @@ -1,54 +0,0 @@ -Name: swiftkerbauth -Version: 1.0 -Release: 1 -Summary: Kerberos authentication filter for Swift - -Group: System Environment/Base -License: GPL -Source: %{name}.tar.gz -BuildRoot: %{_tmppath}/%{name}-root - -Requires: gluster-swift >= 1.4.8 -Requires: python-webob1.0 >= 1.0.8 - -%description -Python script which implements an authentication filter for Swift, the -object-level access layer of Red Hat Storage. - -Relies on an external authentication server, which comes with the -apachekerbauth package. - -%prep -%setup -q -n %{name} - -%build - -%install -rm -rf $RPM_BUILD_ROOT - -mkdir -p \ - $RPM_BUILD_ROOT/usr/lib/python2.6/site-packages - -install swiftkerbauth.py \ - $RPM_BUILD_ROOT/usr/lib/python2.6/site-packages - -%clean -rm -rf $RPM_BUILD_ROOT - -%files -%defattr(-,root,root,-) -/usr/lib/python2.6/site-packages/swiftkerbauth.py - -%post -if ! grep -q "filter:kerbauth" /etc/swift/proxy-server.conf; then -cat >>/etc/swift/proxy-server.conf < - 1.0-1 -- initial build diff --git a/swiftkerbauth/swiftkerbauth/swiftkerbauth.py b/swiftkerbauth/swiftkerbauth/swiftkerbauth.py deleted file mode 100644 index ca9cfc7..0000000 --- a/swiftkerbauth/swiftkerbauth/swiftkerbauth.py +++ /dev/null @@ -1,345 +0,0 @@ -# Copyright (c) 2013 Red Hat, Inc. -# -# 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 gmtime, strftime, time -from traceback import format_exc -from urllib import quote, unquote - -from eventlet import Timeout - -from pkg_resources import require -require("WebOb>=1.0.8") - -from webob import Response, Request -from webob.exc import HTTPBadRequest, HTTPForbidden, HTTPNotFound, \ - HTTPSeeOther - -from swift.common.middleware.acl import clean_acl, parse_acl, referrer_allowed -from swift.common.utils import cache_from_env, get_logger, get_remote_client, \ - split_path, TRUE_VALUES - -class KerbAuth(object): - """ - Test authentication and authorization system. - - Add to your pipeline in proxy-server.conf, such as:: - - [pipeline:main] - pipeline = catch_errors cache kerbauth proxy-server - - Set account auto creation to true in proxy-server.conf:: - - [app:proxy-server] - account_autocreate = true - - And add a kerbauth filter section, such as:: - - [filter:kerbauth] - use = egg:swift#kerbauth - - See the proxy-server.conf-sample for more information. - - :param app: The next WSGI app in the pipeline - :param conf: The dict of configuration values - """ - - def __init__(self, app, conf): - self.app = app - self.conf = conf - self.logger = get_logger(conf, log_route='kerbauth') - self.log_headers = conf.get('log_headers') == 'True' - self.reseller_prefix = conf.get('reseller_prefix', 'AUTH').strip() - if self.reseller_prefix and self.reseller_prefix[-1] != '_': - self.reseller_prefix += '_' - self.auth_prefix = conf.get('auth_prefix', '/auth/') - if not self.auth_prefix: - self.auth_prefix = '/auth/' - if self.auth_prefix[0] != '/': - self.auth_prefix = '/' + self.auth_prefix - if self.auth_prefix[-1] != '/': - self.auth_prefix += '/' - self.token_life = int(conf.get('token_life', 86400)) - self.allowed_sync_hosts = [h.strip() - for h in conf.get('allowed_sync_hosts', '127.0.0.1').split(',') - if h.strip()] - self.allow_overrides = \ - conf.get('allow_overrides', 't').lower() in TRUE_VALUES - self.ext_authentication_url = conf.get('ext_authentication_url') - if not self.ext_authentication_url: - raise RuntimeError("Missing filter parameter ext_authentication_url in /etc/swift/proxy-server.conf") - - def __call__(self, env, start_response): - """ - Accepts a standard WSGI application call, authenticating the request - and installing callback hooks for authorization and ACL header - validation. For an authenticated request, REMOTE_USER will be set to a - comma separated list of the user's groups. - - If the request matches the self.auth_prefix, the request will be - routed through the internal auth request handler (self.handle). - This is to handle granting tokens, etc. - """ - if self.allow_overrides and env.get('swift.authorize_override', False): - return self.app(env, start_response) - if env.get('PATH_INFO', '').startswith(self.auth_prefix): - return self.handle(env, start_response) - token = env.get('HTTP_X_AUTH_TOKEN', env.get('HTTP_X_STORAGE_TOKEN')) - if token and token.startswith(self.reseller_prefix): - groups = self.get_groups(env, token) - if groups: - env['REMOTE_USER'] = groups - user = groups and groups.split(',', 1)[0] or '' - # We know the proxy logs the token, so we augment it just a bit - # to also log the authenticated user. - env['HTTP_X_AUTH_TOKEN'] = '%s,%s' % (user, token) - env['swift.authorize'] = self.authorize - env['swift.clean_acl'] = clean_acl - else: - # Invalid token (may be expired) - return HTTPSeeOther(location=self.ext_authentication_url)(env, start_response) - else: - # With a non-empty reseller_prefix, I would like to be called - # back for anonymous access to accounts I know I'm the - # definitive auth for. - try: - version, rest = split_path(env.get('PATH_INFO', ''), - 1, 2, True) - except ValueError: - return HTTPNotFound()(env, start_response) - # Not my token, not my account, I can't authorize this request, - # deny all is a good idea if not already set... - if 'swift.authorize' not in env: - env['swift.authorize'] = self.denied_response - - return self.app(env, start_response) - - def get_groups(self, env, token): - """ - Get groups for the given token. - - :param env: The current WSGI environment dictionary. - :param token: Token to validate and return a group string for. - - :returns: None if the token is invalid or a string containing a comma - separated list of groups the authenticated user is a member - of. The first group in the list is also considered a unique - identifier for that user. - """ - groups = None - memcache_client = cache_from_env(env) - if not memcache_client: - raise Exception('Memcache required') - memcache_token_key = '%s/token/%s' % (self.reseller_prefix, token) - cached_auth_data = memcache_client.get(memcache_token_key) - if cached_auth_data: - expires, groups = cached_auth_data - if expires < time(): - groups = None - - return groups - - def authorize(self, req): - """ - Returns None if the request is authorized to continue or a standard - WSGI response callable if not. - - Assumes that user groups are all lower case, which is true when Red Hat - Enterprise Linux Identity Management is used. - """ - try: - version, account, container, obj = split_path(req.path, 1, 4, True) - except ValueError: - return HTTPNotFound(request=req) - if not account or not account.startswith(self.reseller_prefix): - return self.denied_response(req) - user_groups = (req.remote_user or '').split(',') - # If the user is in the reseller_admin group for our prefix, he gets - # full access to all accounts we manage. For the default reseller - # prefix, the group name is auth_reseller_admin. - admin_group = ("%sreseller_admin" % self.reseller_prefix).lower() - if admin_group in user_groups and \ - account != self.reseller_prefix and \ - account[len(self.reseller_prefix)] != '.': - req.environ['swift_owner'] = True - return None - # The "account" is part of the request URL, and already contains the - # reseller prefix, like in "/v1/AUTH_vol1/pictures/pic1.png". - if account.lower() in user_groups and \ - (req.method not in ('DELETE', 'PUT') or container): - # If the user is admin for the account and is not trying to do an - # account DELETE or PUT... - req.environ['swift_owner'] = True - return None - if (req.environ.get('swift_sync_key') and - req.environ['swift_sync_key'] == - req.headers.get('x-container-sync-key', None) and - 'x-timestamp' in req.headers and - (req.remote_addr in self.allowed_sync_hosts or - get_remote_client(req) in self.allowed_sync_hosts)): - return None - referrers, groups = parse_acl(getattr(req, 'acl', None)) - if referrer_allowed(req.referer, referrers): - if obj or '.rlistings' in groups: - return None - return self.denied_response(req) - if not req.remote_user: - return self.denied_response(req) - for user_group in user_groups: - if user_group in groups: - return None - return self.denied_response(req) - - def denied_response(self, req): - """ - Returns a standard WSGI response callable with the status of 403 or 401 - depending on whether the REMOTE_USER is set or not. - """ - if req.remote_user: - return HTTPForbidden(request=req) - else: - return HTTPSeeOther(location=self.ext_authentication_url) - - def handle(self, env, start_response): - """ - WSGI entry point for auth requests (ones that match the - self.auth_prefix). - Wraps env in webob.Request object and passes it down. - - :param env: WSGI environment dictionary - :param start_response: WSGI callable - """ - try: - req = Request(env) - if self.auth_prefix: - req.path_info_pop() - req.bytes_transferred = '-' - req.client_disconnect = False - if 'x-storage-token' in req.headers and \ - 'x-auth-token' not in req.headers: - req.headers['x-auth-token'] = req.headers['x-storage-token'] - if 'eventlet.posthooks' in env: - env['eventlet.posthooks'].append( - (self.posthooklogger, (req,), {})) - return self.handle_request(req)(env, start_response) - else: - # Lack of posthook support means that we have to log on the - # start of the response, rather than after all the data has - # been sent. This prevents logging client disconnects - # differently than full transmissions. - response = self.handle_request(req)(env, start_response) - self.posthooklogger(env, req) - return response - except (Exception, Timeout): - print "EXCEPTION IN handle: %s: %s" % (format_exc(), env) - start_response('500 Server Error', - [('Content-Type', 'text/plain')]) - return ['Internal server error.\n'] - - def handle_request(self, req): - """ - Entry point for auth requests (ones that match the self.auth_prefix). - Should return a WSGI-style callable (such as webob.Response). - - :param req: webob.Request object - """ - req.start_time = time() - handler = None - try: - version, account, user, _junk = split_path(req.path_info, - minsegs=1, maxsegs=4, rest_with_last=True) - except ValueError: - return HTTPNotFound(request=req) - if version in ('v1', 'v1.0', 'auth'): - if req.method == 'GET': - handler = self.handle_get_token - if not handler: - req.response = HTTPBadRequest(request=req) - else: - req.response = handler(req) - return req.response - - def handle_get_token(self, req): - """ - Handles the various `request for token and service end point(s)` calls. - There are various formats to support the various auth servers in the - past. Examples:: - - GET /v1//auth - GET /auth - GET /v1.0 - - All formats require GSS (Kerberos) authentication. - - On successful authentication, the response will have X-Auth-Token - set to the token to use with Swift. - - :param req: The webob.Request to process. - :returns: webob.Response, 2xx on success with data set as explained - above. - """ - # Validate the request info - try: - pathsegs = split_path(req.path_info, minsegs=1, maxsegs=3, - rest_with_last=True) - except ValueError: - return HTTPNotFound(request=req) - if not ((pathsegs[0] == 'v1' and pathsegs[2] == 'auth') or pathsegs[0] in ('auth', 'v1.0')): - return HTTPBadRequest(request=req) - - return HTTPSeeOther(location=self.ext_authentication_url) - - def posthooklogger(self, env, req): - if not req.path.startswith(self.auth_prefix): - return - response = getattr(req, 'response', None) - if not response: - return - trans_time = '%.4f' % (time() - req.start_time) - the_request = quote(unquote(req.path)) - if req.query_string: - the_request = the_request + '?' + req.query_string - # remote user for zeus - client = req.headers.get('x-cluster-client-ip') - if not client and 'x-forwarded-for' in req.headers: - # remote user for other lbs - client = req.headers['x-forwarded-for'].split(',')[0].strip() - logged_headers = None - if self.log_headers: - logged_headers = '\n'.join('%s: %s' % (k, v) - for k, v in req.headers.items()) - status_int = response.status_int - if getattr(req, 'client_disconnect', False) or \ - getattr(response, 'client_disconnect', False): - status_int = 499 - self.logger.info(' '.join(quote(str(x)) for x in (client or '-', - req.remote_addr or '-', strftime('%d/%b/%Y/%H/%M/%S', gmtime()), - req.method, the_request, req.environ['SERVER_PROTOCOL'], - status_int, req.referer or '-', req.user_agent or '-', - req.headers.get('x-auth-token', - req.headers.get('x-auth-admin-user', '-')), - getattr(req, 'bytes_transferred', 0) or '-', - getattr(response, 'bytes_transferred', 0) or '-', - req.headers.get('etag', '-'), - req.environ.get('swift.trans_id', '-'), logged_headers or '-', - trans_time))) - - -def filter_factory(global_conf, **local_conf): - """Returns a WSGI filter app for use with paste.deploy.""" - conf = global_conf.copy() - conf.update(local_conf) - - def auth_filter(app): - return KerbAuth(app, conf) - return auth_filter -- cgit