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83 lines
2.1 KiB
Go
83 lines
2.1 KiB
Go
// SPDX-FileCopyrightText: Copyright 2015-2025 go-swagger maintainers
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// SPDX-License-Identifier: Apache-2.0
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package docui
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import (
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"bytes"
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"fmt"
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"html/template"
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"net/http"
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"path"
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)
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// UseRedoc creates a middleware to serve a documentation site for a swagger spec using [Redoc].
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//
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// [Redoc]: https://redocly.com/docs/redoc
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func UseRedoc(opts ...Option) func(next http.Handler) http.Handler {
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pth, assets := redocSetup(opts)
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return func(next http.Handler) http.Handler {
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return serveUI(pth, assets, next)
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}
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}
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// Redoc creates a [http.Handler] to serve a documentation site for a swagger spec using [Redoc].
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//
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// By default, the UI is served at route "/docs"
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//
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// This allows for altering the spec before starting the [http] listener.
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//
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// [Redoc]: https://redocly.com/docs/redoc
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func Redoc(next http.Handler, opts ...Option) http.Handler {
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pth, assets := redocSetup(opts)
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return serveUI(pth, assets, next)
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}
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func redocSetup(opts []Option) (pth string, assets []byte) {
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o := optionsWithDefaults(opts,
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// defaults for redoc
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WithUITemplate(redocTemplate),
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WithUIAssetsURL(redocLatest),
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)
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pth = path.Join(o.BasePath, o.Path)
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tmpl := template.Must(template.New("redoc").Parse(o.Template))
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buf := bytes.NewBuffer(nil)
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if err := tmpl.Execute(buf, o); err != nil {
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panic(fmt.Errorf("cannot execute template: %w", err))
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}
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return pth, buf.Bytes()
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}
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const (
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redocLatest = "https://cdn.redoc.ly/redoc/latest/bundles/redoc.standalone.js" // "https://cdn.jsdelivr.net/npm/redoc/bundles/redoc.standalone.js"
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redocTemplate = `<!DOCTYPE html>
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<html>
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<head>
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<title>{{ .Title }}</title>
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<!-- needed for adaptive design -->
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<meta charset="utf-8"/>
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<link href="https://fonts.googleapis.com/css?family=Montserrat:300,400,700|Roboto:300,400,700" rel="stylesheet">
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<!--
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ReDoc doesn't change outer page styles
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-->
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<style>
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body {
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margin: 0;
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padding: 0;
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}
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</style>
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</head>
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<body>
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<redoc spec-url='{{ .SpecURL }}'></redoc>
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<script src="{{ .AssetsURL }}"> </script>
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</body>
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</html>
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`
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)
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