| // Copyright 2015 go-swagger maintainers |
| // |
| // 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 middleware |
| |
| import ( |
| "net/http" |
| "path" |
| ) |
| |
| // Spec creates a middleware to serve a swagger spec. |
| // This allows for altering the spec before starting the http listener. |
| // This can be useful if you want to serve the swagger spec from another path than /swagger.json |
| // |
| func Spec(basePath string, b []byte, next http.Handler) http.Handler { |
| if basePath == "" { |
| basePath = "/" |
| } |
| pth := path.Join(basePath, "swagger.json") |
| |
| return http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) { |
| if r.URL.Path == pth { |
| rw.Header().Set("Content-Type", "application/json") |
| rw.WriteHeader(http.StatusOK) |
| //#nosec |
| rw.Write(b) |
| return |
| } |
| |
| if next == nil { |
| rw.Header().Set("Content-Type", "application/json") |
| rw.WriteHeader(http.StatusNotFound) |
| return |
| } |
| next.ServeHTTP(rw, r) |
| }) |
| } |