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Merge pull request #159 from 0xff-dev/main
feat: support oidc auth
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,62 @@ | ||
| /* | ||
| Copyright 2023 KubeAGI. | ||
| 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 auth | ||
|
|
||
| import ( | ||
| "context" | ||
| "net/http" | ||
| "strings" | ||
|
|
||
| "github.com/coreos/go-oidc/v3/oidc" | ||
| ) | ||
|
|
||
| type idtokenKey struct{} | ||
|
|
||
| func isBearerToken(token string) (bool, string) { | ||
| if len(token) < 6 { | ||
| return false, "" | ||
| } | ||
| head := strings.ToLower(token[:6]) | ||
| payload := strings.TrimSpace(token[6:]) | ||
| return head == "bearer" && len(payload) > 0, payload | ||
| } | ||
|
|
||
| func AuthInterceptor(oidcVerifier *oidc.IDTokenVerifier, hf http.HandlerFunc) http.HandlerFunc { | ||
| return func(w http.ResponseWriter, r *http.Request) { | ||
| idtoken := r.Header.Get("Authorization") | ||
| ok, rawToken := isBearerToken(idtoken) | ||
| if !ok { | ||
| w.WriteHeader(http.StatusUnauthorized) | ||
| _, _ = w.Write([]byte("Unauthorized. Please provide an oidc token")) | ||
| return | ||
| } | ||
| _, err := oidcVerifier.Verify(context.TODO(), rawToken) | ||
| if err != nil { | ||
| w.WriteHeader(http.StatusUnauthorized) | ||
| _, _ = w.Write([]byte(err.Error())) | ||
| return | ||
| } | ||
| ctx := context.WithValue(r.Context(), idtokenKey{}, rawToken) | ||
| r = r.WithContext(ctx) | ||
| hf(w, r) | ||
| } | ||
| } | ||
|
|
||
| func ForOIDCToken(ctx context.Context) string { | ||
| v, _ := ctx.Value(idtokenKey{}).(string) | ||
| return v | ||
| } |
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