Add ability to restrict V1 push behind a namespace whitelist

Also enables the feature by default with an empty whitelist for QE

Fixes https://jira.coreos.com/browse/QUAY-1342

config.py

@@ -236,6 +236,10 @@ class DefaultConfig(ImmutableConfig):
   # Documentation: http://pythonhosted.org/semantic_version/reference.html#semantic_version.Spec
   BLACKLIST_V2_SPEC = '<1.6.0'
 
+  # Feature Flag: Whether to restrict V1 pushes to the whitelist.
+  FEATURE_RESTRICTED_V1_PUSH = False
+  V1_PUSH_WHITELIST = []
+
   # Feature Flag: Whether or not to rotate old action logs to storage.
   FEATURE_ACTION_LOG_ROTATION = False
 

config_app/config_endpoints/api/suconfig.py

@@ -89,7 +89,6 @@ class SuperUserRegistryStatus(ApiResource):
   @nickname('scRegistryStatus')
   def get(self):
     """ Returns the status of the registry. """
-
     # If there is no config file, we need to setup the database.
     if not config_provider.config_exists():
       return {
@@ -104,7 +103,9 @@ class SuperUserRegistryStatus(ApiResource):
 
     config = config_provider.get_config()
     if config and config['SETUP_COMPLETE']:
-      return 'config'
+      return {
+        'status': 'config'
+      }
 
     return {
       'status': 'create-superuser' if not database_has_users() else 'config'

config_app/js/core-config-setup/config-setup-tool.html

@@ -1419,6 +1419,36 @@
       </div>
     </div> <!-- /Access settings -->
 
+    <!-- Registry settings -->
+    <div class="co-panel">
+      <div class="co-panel-heading">
+        <i class="fas fa-cog"></i> Registry Protocol Settings
+      </div>
+      <div class="co-panel-body">
+        <div class="co-alert co-alert-warning" style="margin-bottom: 20px">
+          Docker V1 protocol support has been <strong>officially deprecated</strong> by Quay and support will be
+          removed in the next major version. It is <strongly>strongly</strongly> suggested to have this
+          flag enabled and to restrict access to V1 push.
+        </div>
+        <div class="config-bool-field" binding="config.FEATURE_RESTRICTED_V1_PUSH">
+          Restrict V1 Push Support
+        </div>
+        <div class="help-text">
+          If enabled, Docker V1 push protocol will only be supported by those namespaces whitelisted
+          below. This feature should be left on unless <strong>general usage</strong> of the older
+          Docker V1 protocol is necessary.
+        </div>
+        <div ng-if="config.FEATURE_RESTRICTED_V1_PUSH" style="margin-top: 20px;">
+          <strong>Namespace whitelist:</strong>
+          <span class="config-list-field" item-title="Namespace" binding="config.V1_PUSH_WHITELIST"
+                item-pattern="[a-z0-9-]"></span>
+          <div class="help-text">
+            The list of namespaces in which V1 push is still enabled.
+          </div>
+        </div>
+      </div>
+    </div>
+
     <!-- Build Support -->
     <div class="co-panel">
       <div class="co-panel-heading">

endpoints/v1/__init__.py

@@ -1,12 +1,20 @@
+import logging
+
+from functools import wraps
+
 from flask import Blueprint, make_response
 
-from app import metric_queue
+import features
+
+from app import metric_queue, app
 from endpoints.decorators import anon_protect, anon_allowed
 from util.metrics.metricqueue import time_blueprint
+from util.http import abort
 
 v1_bp = Blueprint('v1', __name__)
 time_blueprint(v1_bp, metric_queue)
 
+logger = logging.getLogger(__name__)
 
 # Note: This is *not* part of the Docker index spec. This is here for our own health check,
 # since we have nginx handle the _ping below.
@@ -26,6 +34,32 @@ def ping():
   return response
 
 
+def check_v1_push_enabled(namespace_name_kwarg='namespace_name'):
+  """ Decorator which checks if V1 push is enabled for the current namespace. The first argument
+      to the wrapped function must be the namespace name or there must be a kwarg with the
+      name `namespace_name`.
+  """
+  def wrapper(wrapped):
+    @wraps(wrapped)
+    def decorated(*args, **kwargs):
+      if namespace_name_kwarg in kwargs:
+        namespace_name = kwargs[namespace_name_kwarg]
+      else:
+        namespace_name = args[0]
+
+      if features.RESTRICTED_V1_PUSH:
+        whitelist = app.config.get('V1_PUSH_WHITELIST') or []
+        logger.debug('V1 push is restricted to whitelist: %s', whitelist)
+        if namespace_name not in whitelist:
+          abort(405,
+                message=('V1 push support has been deprecated. To enable for this ' +
+                         'namespace, please contact support.'))
+
+      return wrapped(*args, **kwargs)
+    return decorated
+  return wrapper
+
+
 from endpoints.v1 import (
   index,
   registry,

endpoints/v1/index.py

@@ -18,7 +18,7 @@ from data import model
 from data.registry_model import registry_model
 from data.registry_model.manifestbuilder import create_manifest_builder, lookup_manifest_builder
 from endpoints.decorators import anon_protect, anon_allowed, parse_repository_name
-from endpoints.v1 import v1_bp
+from endpoints.v1 import v1_bp, check_v1_push_enabled
 from notifications import spawn_notification
 from util.audit import track_and_log
 from util.http import abort
@@ -165,6 +165,7 @@ def update_user(username):
 @v1_bp.route('/repositories/<repopath:repository>/', methods=['PUT'])
 @process_auth
 @parse_repository_name()
+@check_v1_push_enabled()
 @ensure_namespace_enabled
 @generate_headers(scope=GrantType.WRITE_REPOSITORY, add_grant_for_status=201)
 @anon_allowed
@@ -229,6 +230,7 @@ def create_repository(namespace_name, repo_name):
 @v1_bp.route('/repositories/<repopath:repository>/images', methods=['PUT'])
 @process_auth
 @parse_repository_name()
+@check_v1_push_enabled()
 @ensure_namespace_enabled
 @generate_headers(scope=GrantType.WRITE_REPOSITORY)
 @anon_allowed
@@ -295,6 +297,7 @@ def get_repository_images(namespace_name, repo_name):
 @v1_bp.route('/repositories/<repopath:repository>/images', methods=['DELETE'])
 @process_auth
 @parse_repository_name()
+@check_v1_push_enabled()
 @ensure_namespace_enabled
 @generate_headers(scope=GrantType.WRITE_REPOSITORY)
 @anon_allowed
@@ -304,6 +307,7 @@ def delete_repository_images(namespace_name, repo_name):
 
 @v1_bp.route('/repositories/<repopath:repository>/auth', methods=['PUT'])
 @parse_repository_name()
+@check_v1_push_enabled()
 @ensure_namespace_enabled
 @anon_allowed
 def put_repository_auth(namespace_name, repo_name):

endpoints/v1/registry.py

@@ -16,7 +16,7 @@ from data.registry_model import registry_model
 from data.registry_model.blobuploader import upload_blob, BlobUploadSettings, BlobUploadException
 from data.registry_model.manifestbuilder import lookup_manifest_builder
 from digest import checksums
-from endpoints.v1 import v1_bp
+from endpoints.v1 import v1_bp, check_v1_push_enabled
 from endpoints.v1.index import ensure_namespace_enabled
 from endpoints.decorators import anon_protect, check_region_blacklisted
 from util.http import abort, exact_abort
@@ -149,6 +149,7 @@ def get_image_layer(namespace, repository, image_id, headers):
 @v1_bp.route('/images/<image_id>/layer', methods=['PUT'])
 @process_auth
 @extract_namespace_repo_from_session
+@check_v1_push_enabled()
 @ensure_namespace_enabled
 @anon_protect
 def put_image_layer(namespace, repository, image_id):
@@ -240,6 +241,7 @@ def put_image_layer(namespace, repository, image_id):
 @v1_bp.route('/images/<image_id>/checksum', methods=['PUT'])
 @process_auth
 @extract_namespace_repo_from_session
+@check_v1_push_enabled()
 @ensure_namespace_enabled
 @anon_protect
 def put_image_checksum(namespace, repository, image_id):
@@ -345,6 +347,7 @@ def get_image_ancestry(namespace, repository, image_id, headers):
 @v1_bp.route('/images/<image_id>/json', methods=['PUT'])
 @process_auth
 @extract_namespace_repo_from_session
+@check_v1_push_enabled()
 @ensure_namespace_enabled
 @anon_protect
 def put_image_json(namespace, repository, image_id):

endpoints/v1/tag.py

@@ -9,7 +9,7 @@ from auth.permissions import (ReadRepositoryPermission, ModifyRepositoryPermissi
 from data.registry_model import registry_model
 from data.registry_model.manifestbuilder import lookup_manifest_builder
 from endpoints.decorators import anon_protect, parse_repository_name
-from endpoints.v1 import v1_bp
+from endpoints.v1 import v1_bp, check_v1_push_enabled
 from util.audit import track_and_log
 from util.names import TAG_ERROR, TAG_REGEX
 
@@ -59,6 +59,7 @@ def get_tag(namespace_name, repo_name, tag):
 @process_auth
 @anon_protect
 @parse_repository_name()
+@check_v1_push_enabled()
 def put_tag(namespace_name, repo_name, tag):
   permission = ModifyRepositoryPermission(namespace_name, repo_name)
   repository_ref = registry_model.lookup_repository(namespace_name, repo_name, kind_filter='image')
@@ -98,6 +99,7 @@ def put_tag(namespace_name, repo_name, tag):
 @process_auth
 @anon_protect
 @parse_repository_name()
+@check_v1_push_enabled()
 def delete_tag(namespace_name, repo_name, tag):
   permission = ModifyRepositoryPermission(namespace_name, repo_name)
   repository_ref = registry_model.lookup_repository(namespace_name, repo_name, kind_filter='image')

util/config/configutil.py

@@ -23,6 +23,7 @@ def add_enterprise_config_defaults(config_obj, current_secret_key):
   config_obj['FEATURE_APP_SPECIFIC_TOKENS'] = config_obj.get('FEATURE_APP_SPECIFIC_TOKENS', True)
   config_obj['FEATURE_PARTIAL_USER_AUTOCOMPLETE'] = config_obj.get('FEATURE_PARTIAL_USER_AUTOCOMPLETE', True)
   config_obj['FEATURE_USERNAME_CONFIRMATION'] = config_obj.get('FEATURE_USERNAME_CONFIRMATION', True)
+  config_obj['FEATURE_RESTRICTED_V1_PUSH'] = config_obj.get('FEATURE_RESTRICTED_V1_PUSH', True)
 
   # Default features that are off.
   config_obj['FEATURE_MAILING'] = config_obj.get('FEATURE_MAILING', False)

util/config/schema.py

@@ -955,6 +955,19 @@ CONFIG_SCHEMA = {
       'description': 'If set to true, users can confirm their generated usernames. Defaults to True',
       'x-example': False,
     },
+
+    # Feature Flag: V1 push restriction.
+    'FEATURE_RESTRICTED_V1_PUSH': {
+      'type': 'boolean',
+      'description': 'If set to true, only namespaces listed in V1_PUSH_WHITELIST support V1 push. Defaults to True',
+      'x-example': False,
+    },
+
+    # Feature Flag: V1 push restriction.
+    'V1_PUSH_WHITELIST': {
+      'type': 'array',
+      'description': 'The array of namespace names that support V1 push if FEATURE_RESTRICTED_V1_PUSH is set to true.',
+      'x-example': ['some', 'namespaces'],
+    },
  },
 }
-