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48 lines
1.4 KiB
48 lines
1.4 KiB
// Copyright 2015 go-swagger maintainers
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package middleware
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import (
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"net/http"
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"path"
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)
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// Spec creates a middleware to serve a swagger spec.
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// This allows for altering the spec before starting the http listener.
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// This can be useful if you want to serve the swagger spec from another path than /swagger.json
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//
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func Spec(basePath string, b []byte, next http.Handler) http.Handler {
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if basePath == "" {
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basePath = "/"
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}
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pth := path.Join(basePath, "swagger.json")
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return http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
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if r.URL.Path == pth {
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rw.Header().Set("Content-Type", "application/json")
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rw.WriteHeader(http.StatusOK)
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//#nosec
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_, _ = rw.Write(b)
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return
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}
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if next == nil {
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rw.Header().Set("Content-Type", "application/json")
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rw.WriteHeader(http.StatusNotFound)
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return
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}
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next.ServeHTTP(rw, r)
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})
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}
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