9fe4437bda
* Use vendored go-swagger * vendor go-swagger * revert un wanteed change * remove un-needed GO111MODULE * Update Makefile Co-Authored-By: techknowlogick <matti@mdranta.net>
101 lines
2.3 KiB
Go
Vendored
101 lines
2.3 KiB
Go
Vendored
package middleware
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"html/template"
|
|
"net/http"
|
|
"path"
|
|
)
|
|
|
|
// RedocOpts configures the Redoc middlewares
|
|
type RedocOpts struct {
|
|
// BasePath for the UI path, defaults to: /
|
|
BasePath string
|
|
// Path combines with BasePath for the full UI path, defaults to: docs
|
|
Path string
|
|
// SpecURL the url to find the spec for
|
|
SpecURL string
|
|
// RedocURL for the js that generates the redoc site, defaults to: https://rebilly.github.io/ReDoc/releases/latest/redoc.min.js
|
|
RedocURL string
|
|
// Title for the documentation site, default to: API documentation
|
|
Title string
|
|
}
|
|
|
|
// EnsureDefaults in case some options are missing
|
|
func (r *RedocOpts) EnsureDefaults() {
|
|
if r.BasePath == "" {
|
|
r.BasePath = "/"
|
|
}
|
|
if r.Path == "" {
|
|
r.Path = "docs"
|
|
}
|
|
if r.SpecURL == "" {
|
|
r.SpecURL = "/swagger.json"
|
|
}
|
|
if r.RedocURL == "" {
|
|
r.RedocURL = redocLatest
|
|
}
|
|
if r.Title == "" {
|
|
r.Title = "API documentation"
|
|
}
|
|
}
|
|
|
|
// Redoc creates a middleware to serve a documentation site for a swagger spec.
|
|
// This allows for altering the spec before starting the http listener.
|
|
//
|
|
func Redoc(opts RedocOpts, next http.Handler) http.Handler {
|
|
opts.EnsureDefaults()
|
|
|
|
pth := path.Join(opts.BasePath, opts.Path)
|
|
tmpl := template.Must(template.New("redoc").Parse(redocTemplate))
|
|
|
|
buf := bytes.NewBuffer(nil)
|
|
_ = tmpl.Execute(buf, opts)
|
|
b := buf.Bytes()
|
|
|
|
return http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
|
|
if r.URL.Path == pth {
|
|
rw.Header().Set("Content-Type", "text/html; charset=utf-8")
|
|
rw.WriteHeader(http.StatusOK)
|
|
|
|
_, _ = rw.Write(b)
|
|
return
|
|
}
|
|
|
|
if next == nil {
|
|
rw.Header().Set("Content-Type", "text/plain")
|
|
rw.WriteHeader(http.StatusNotFound)
|
|
_, _ = rw.Write([]byte(fmt.Sprintf("%q not found", pth)))
|
|
return
|
|
}
|
|
next.ServeHTTP(rw, r)
|
|
})
|
|
}
|
|
|
|
const (
|
|
redocLatest = "https://rebilly.github.io/ReDoc/releases/latest/redoc.min.js"
|
|
redocTemplate = `<!DOCTYPE html>
|
|
<html>
|
|
<head>
|
|
<title>{{ .Title }}</title>
|
|
<!-- needed for adaptive design -->
|
|
<meta name="viewport" content="width=device-width, initial-scale=1">
|
|
|
|
<!--
|
|
ReDoc doesn't change outer page styles
|
|
-->
|
|
<style>
|
|
body {
|
|
margin: 0;
|
|
padding: 0;
|
|
}
|
|
</style>
|
|
</head>
|
|
<body>
|
|
<redoc spec-url='{{ .SpecURL }}'></redoc>
|
|
<script src="{{ .RedocURL }}"> </script>
|
|
</body>
|
|
</html>
|
|
`
|
|
)
|