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fix: skip login screen when auth header is present (#8762)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| // Copyright 2017 The Kubernetes 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 login | ||
|
|
||
| import ( | ||
| "net/http" | ||
|
|
||
| "github.com/gin-gonic/gin" | ||
| "k8s.io/klog/v2" | ||
|
|
||
| "k8s.io/dashboard/auth/pkg/router" | ||
| ) | ||
|
|
||
| func init() { | ||
| router.V1().GET("/me", handleMe) | ||
| } | ||
|
|
||
| func handleMe(c *gin.Context) { | ||
| response, code, err := me(c.Request) | ||
| if err != nil { | ||
| klog.ErrorS(err, "Could not get user") | ||
| c.JSON(code, err) | ||
| return | ||
| } | ||
|
|
||
| c.JSON(http.StatusOK, response) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,98 @@ | ||
| // Copyright 2017 The Kubernetes 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 login | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "encoding/json" | ||
| "net/http" | ||
|
|
||
| "github.com/golang-jwt/jwt/v4" | ||
|
|
||
| "k8s.io/dashboard/client" | ||
| "k8s.io/dashboard/errors" | ||
| "k8s.io/dashboard/types" | ||
| ) | ||
|
|
||
| const ( | ||
| tokenServiceAccountKey = "serviceaccount" | ||
| ) | ||
|
|
||
| type ServiceAccount struct { | ||
| Name string `json:"name"` | ||
| UID string `json:"uid"` | ||
| } | ||
|
|
||
| func me(request *http.Request) (*types.User, int, error) { | ||
| k8sClient, err := client.Client(request) | ||
| if err != nil { | ||
| return nil, http.StatusInternalServerError, err | ||
| } | ||
|
|
||
| // Make sure that authorization token is valid | ||
| if _, err = k8sClient.Discovery().ServerVersion(); err != nil { | ||
| code, err := errors.HandleError(err) | ||
| return nil, code, err | ||
| } | ||
|
|
||
| return getUserFromToken(client.GetBearerToken(request)), http.StatusOK, nil | ||
| } | ||
|
|
||
| func getUserFromToken(token string) *types.User { | ||
| parsed, _ := jwt.Parse(token, nil) | ||
| if parsed == nil { | ||
| return &types.User{Authenticated: true} | ||
| } | ||
|
|
||
| claims := parsed.Claims.(jwt.MapClaims) | ||
|
|
||
| found, value := traverse(tokenServiceAccountKey, claims) | ||
| if !found { | ||
| return &types.User{Authenticated: true} | ||
| } | ||
|
|
||
| var sa ServiceAccount | ||
| ok := transcode(value, &sa) | ||
| if !ok { | ||
| return &types.User{Authenticated: true} | ||
| } | ||
|
|
||
| return &types.User{Name: sa.Name, Authenticated: true} | ||
| } | ||
|
|
||
| func traverse(key string, m map[string]interface{}) (found bool, value interface{}) { | ||
| for k, v := range m { | ||
| if k == key { | ||
| return true, v | ||
| } | ||
|
|
||
| if innerMap, ok := v.(map[string]interface{}); ok { | ||
| return traverse(key, innerMap) | ||
| } | ||
| } | ||
|
|
||
| return false, "" | ||
| } | ||
|
|
||
| func transcode(in, out interface{}) bool { | ||
| buf := new(bytes.Buffer) | ||
| err := json.NewEncoder(buf).Encode(in) | ||
| if err != nil { | ||
| return false | ||
| } | ||
|
|
||
| err = json.NewDecoder(buf).Decode(out) | ||
| return err == nil | ||
| } |
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