// SPDX-FileCopyrightText: Copyright 2015-2025 go-swagger maintainers
// SPDX-License-Identifier: Apache-2.0
package docui
import (
"bytes"
"fmt"
"net/http"
"path"
"text/template"
)
// UseSwaggerUIOAuth2Callback creates a middleware that serves a callback URL to complete
// a OAuth2 token handshake.
func UseSwaggerUIOAuth2Callback(opts ...Option) func(next http.Handler) http.Handler {
pth, assets := swaggeruiOAuth2Setup(opts)
return func(next http.Handler) http.Handler {
return serveUI(pth, assets, next)
}
}
// SwaggerUIOAuth2Callback creates a [http.Handler] that serves a callback URL to complete
// a OAuth2 token handshake.
func SwaggerUIOAuth2Callback(next http.Handler, opts ...Option) http.Handler {
pth, assets := swaggeruiOAuth2Setup(opts)
return serveUI(pth, assets, next)
}
func swaggeruiOAuth2Setup(opts []Option) (pth string, assets []byte) {
o := optionsWithDefaults(opts,
// defaults for SwaggerUI OAuth2 callback endpoint
WithUITemplate(swaggerOAuth2Template),
WithUIAssetsURL(swaggerLatest),
)
o.applySwaggerUIDefaults()
if o.OAuth2CallbackURL == "" {
o.OAuth2CallbackURL = path.Join(o.BasePath, o.Path, "oauth2-callback")
}
pth = o.OAuth2CallbackURL
tmpl := template.Must(template.New("swaggeroauth2").Parse(o.Template))
buf := bytes.NewBuffer(nil)
if err := tmpl.Execute(buf, o); err != nil {
panic(fmt.Errorf("cannot execute template: %w", err))
}
return pth, buf.Bytes()
}
const swaggerOAuth2Template = `
{{ .Title }}
`