| // 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. |
| |
| package matcher |
| |
| import ( |
| matcherpb "github.com/envoyproxy/go-control-plane/envoy/type/matcher/v3" |
| ) |
| |
| // MetadataStringMatcher creates a metadata string matcher for the given filter, key and the |
| // string matcher. |
| func MetadataStringMatcher(filter, key string, m *matcherpb.StringMatcher) *matcherpb.MetadataMatcher { |
| return &matcherpb.MetadataMatcher{ |
| Filter: filter, |
| Path: []*matcherpb.MetadataMatcher_PathSegment{ |
| { |
| Segment: &matcherpb.MetadataMatcher_PathSegment_Key{ |
| Key: key, |
| }, |
| }, |
| }, |
| Value: &matcherpb.ValueMatcher{ |
| MatchPattern: &matcherpb.ValueMatcher_StringMatch{ |
| StringMatch: m, |
| }, |
| }, |
| } |
| } |
| |
| // MetadataListMatcher creates a metadata list matcher for the given path keys and value. |
| func MetadataListMatcher(filter string, keys []string, value *matcherpb.StringMatcher) *matcherpb.MetadataMatcher { |
| listMatcher := &matcherpb.ListMatcher{ |
| MatchPattern: &matcherpb.ListMatcher_OneOf{ |
| OneOf: &matcherpb.ValueMatcher{ |
| MatchPattern: &matcherpb.ValueMatcher_StringMatch{ |
| StringMatch: value, |
| }, |
| }, |
| }, |
| } |
| |
| paths := make([]*matcherpb.MetadataMatcher_PathSegment, 0, len(keys)) |
| for _, k := range keys { |
| paths = append(paths, &matcherpb.MetadataMatcher_PathSegment{ |
| Segment: &matcherpb.MetadataMatcher_PathSegment_Key{ |
| Key: k, |
| }, |
| }) |
| } |
| |
| return &matcherpb.MetadataMatcher{ |
| Filter: filter, |
| Path: paths, |
| Value: &matcherpb.ValueMatcher{ |
| MatchPattern: &matcherpb.ValueMatcher_ListMatch{ |
| ListMatch: listMatcher, |
| }, |
| }, |
| } |
| } |