| // Copyright Istio Authors |
| // |
| // 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. |
| |
| // The auth package provides support for checking the authentication and authorization policy applied |
| // in the mesh. It aims to increase the debuggability and observability of auth policies. |
| // Note: this is still under active development and is not ready for real use. |
| package authz |
| |
| import ( |
| "fmt" |
| "io" |
| ) |
| |
| import ( |
| envoy_admin "github.com/envoyproxy/go-control-plane/envoy/admin/v3" |
| listener "github.com/envoyproxy/go-control-plane/envoy/config/listener/v3" |
| ) |
| |
| import ( |
| "github.com/apache/dubbo-go-pixiu/istioctl/pkg/util/configdump" |
| v3 "github.com/apache/dubbo-go-pixiu/pilot/pkg/xds/v3" |
| ) |
| |
| // Analyzer that can be used to check authorization policy. |
| type Analyzer struct { |
| listenerDump *envoy_admin.ListenersConfigDump |
| } |
| |
| // NewAnalyzer creates a new analyzer for a given pod based on its envoy config. |
| func NewAnalyzer(envoyConfig *configdump.Wrapper) (*Analyzer, error) { |
| listeners, err := envoyConfig.GetDynamicListenerDump(true) |
| if err != nil { |
| return nil, fmt.Errorf("failed to get dynamic listener dump: %s", err) |
| } |
| |
| return &Analyzer{listenerDump: listeners}, nil |
| } |
| |
| // Print print sthe analyze results. |
| func (a *Analyzer) Print(writer io.Writer) { |
| var listeners []*listener.Listener |
| for _, l := range a.listenerDump.DynamicListeners { |
| listenerTyped := &listener.Listener{} |
| // Support v2 or v3 in config dump. See ads.go:RequestedTypes for more info. |
| l.ActiveState.Listener.TypeUrl = v3.ListenerType |
| err := l.ActiveState.Listener.UnmarshalTo(listenerTyped) |
| if err != nil { |
| return |
| } |
| listeners = append(listeners, listenerTyped) |
| } |
| Print(writer, listeners) |
| } |