Serge Bazanski | cc25bdf | 2018-10-25 14:02:58 +0200 | [diff] [blame] | 1 | // Copyright 2015 go-swagger maintainers |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
| 6 | // |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
| 14 | |
| 15 | package middleware |
| 16 | |
| 17 | import ( |
| 18 | "net/http" |
| 19 | "path" |
| 20 | ) |
| 21 | |
| 22 | // Spec creates a middleware to serve a swagger spec. |
| 23 | // This allows for altering the spec before starting the http listener. |
| 24 | // This can be useful if you want to serve the swagger spec from another path than /swagger.json |
| 25 | // |
| 26 | func Spec(basePath string, b []byte, next http.Handler) http.Handler { |
| 27 | if basePath == "" { |
| 28 | basePath = "/" |
| 29 | } |
| 30 | pth := path.Join(basePath, "swagger.json") |
| 31 | |
| 32 | return http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) { |
| 33 | if r.URL.Path == pth { |
| 34 | rw.Header().Set("Content-Type", "application/json") |
| 35 | rw.WriteHeader(http.StatusOK) |
| 36 | //#nosec |
| 37 | rw.Write(b) |
| 38 | return |
| 39 | } |
| 40 | |
| 41 | if next == nil { |
| 42 | rw.Header().Set("Content-Type", "application/json") |
| 43 | rw.WriteHeader(http.StatusNotFound) |
| 44 | return |
| 45 | } |
| 46 | next.ServeHTTP(rw, r) |
| 47 | }) |
| 48 | } |