// Copyright 2022 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
// BSD 3-Clause License
//
// Copyright (c) 2020, Juan Font
// All rights reserved.
// This file is almost a copy of
// https://github.com/juanfont/headscale/blob/19455399f4762fb0ab1308a78f4625ce746b2c51/swagger.go.
// The only difference is the apiV1JSON variable.
package openapi
import (
"bytes"
_ "embed"
"html/template"
"net/http"
"github.com/pingcap/log"
"go.uber.org/zap"
)
//go:embed apiv1.swagger.json
var apiV1JSON []byte
// SwaggerUI renders the swagger ui.
func SwaggerUI(
writer http.ResponseWriter,
_ *http.Request,
) {
swaggerTemplate := template.Must(template.New("swagger").Parse(`
`))
var payload bytes.Buffer
if err := swaggerTemplate.Execute(&payload, struct{}{}); err != nil {
log.Warn("Could not render Swagger", zap.Error(err))
writer.Header().Set("Content-Type", "text/plain; charset=utf-8")
writer.WriteHeader(http.StatusInternalServerError)
_, err := writer.Write([]byte("Could not render Swagger"))
log.Warn("Failed to write response", zap.Error(err))
return
}
writer.Header().Set("Content-Type", "text/html; charset=utf-8")
writer.WriteHeader(http.StatusOK)
_, err := writer.Write(payload.Bytes())
if err != nil {
log.Warn("Failed to write response", zap.Error(err))
}
}
// SwaggerAPIv1 serves the apiv1 swagger json file.
func SwaggerAPIv1(
writer http.ResponseWriter,
_ *http.Request,
) {
writer.Header().Set("Content-Type", "application/json; charset=utf-8")
writer.WriteHeader(http.StatusOK)
if _, err := writer.Write(apiV1JSON); err != nil {
log.Warn("Failed to write response", zap.Error(err))
}
}