/
handler.go
52 lines (48 loc) · 1.73 KB
/
handler.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
// Copyright 2020 Antrea 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 endpoint
import (
"encoding/json"
"net/http"
"antrea.io/antrea/pkg/controller/networkpolicy"
)
// HandleFunc creates a http.HandlerFunc which uses an AgentNetworkPolicyInfoQuerier
// to query network policy rules in current agent.
func HandleFunc(eq networkpolicy.EndpointQuerier) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
podName := r.URL.Query().Get("pod")
namespace := r.URL.Query().Get("namespace")
if namespace == "" {
namespace = "default"
}
// check for incomplete arguments
if podName == "" {
http.Error(w, "pod must be provided", http.StatusBadRequest)
return
}
// query endpoint and handle response errors
endpointQueryResponse, err := eq.QueryNetworkPolicies(namespace, podName)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
if endpointQueryResponse == nil {
http.Error(w, "could not find any endpoints matching your selection", http.StatusNotFound)
return
}
if err := json.NewEncoder(w).Encode(*endpointQueryResponse); err != nil {
http.Error(w, "failed to encode response: "+err.Error(), http.StatusInternalServerError)
}
}
}