headscale/swagger.go

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package headscale
import (
"bytes"
_ "embed"
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"html/template"
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"net/http"
"github.com/gin-gonic/gin"
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"github.com/rs/zerolog/log"
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)
//go:embed gen/openapiv2/headscale/v1/headscale.swagger.json
var apiV1JSON []byte
func SwaggerUI(ctx *gin.Context) {
swaggerTemplate := template.Must(template.New("swagger").Parse(`
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<html>
<head>
<link rel="stylesheet" type="text/css" href="https://unpkg.com/swagger-ui-dist@3/swagger-ui.css">
<script src="https://unpkg.com/swagger-ui-dist@3/swagger-ui-standalone-preset.js"></script>
<script src="https://unpkg.com/swagger-ui-dist@3/swagger-ui-bundle.js" charset="UTF-8"></script>
</head>
<body>
<div id="swagger-ui"></div>
<script>
window.addEventListener('load', (event) => {
const ui = SwaggerUIBundle({
url: "/swagger/v1/openapiv2.json",
dom_id: '#swagger-ui',
presets: [
SwaggerUIBundle.presets.apis,
SwaggerUIBundle.SwaggerUIStandalonePreset
],
plugins: [
SwaggerUIBundle.plugins.DownloadUrl
],
deepLinking: true,
// TODO(kradalby): Figure out why this does not work
// layout: "StandaloneLayout",
})
window.ui = ui
});
</script>
</body>
</html>`))
var payload bytes.Buffer
if err := swaggerTemplate.Execute(&payload, struct{}{}); err != nil {
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log.Error().
Caller().
Err(err).
Msg("Could not render Swagger")
ctx.Data(
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http.StatusInternalServerError,
"text/html; charset=utf-8",
[]byte("Could not render Swagger"),
)
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return
}
ctx.Data(http.StatusOK, "text/html; charset=utf-8", payload.Bytes())
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}
func SwaggerAPIv1(ctx *gin.Context) {
ctx.Data(http.StatusOK, "application/json; charset=utf-8", apiV1JSON)
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}