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This repository has been archived by the owner on Feb 28, 2024. It is now read-only.
// CORSMiddleware injects CORS headers to each request
// when it's configured.
type CORSMiddleware struct {
defaultHeaders string
}
// NewCORSMiddleware creates a new CORSMiddleware with default headers.
func NewCORSMiddleware(d string) CORSMiddleware {
return CORSMiddleware{defaultHeaders: d}
}
// WrapHandler returns a new handler function wrapping the previous one in the request chain.
func (c CORSMiddleware) WrapHandler(handler func(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error) func(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
return func(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
// If "api-cors-header" is not given, but "api-enable-cors" is true, we set cors to "*"
// otherwise, all head values will be passed to HTTP handler
corsHeaders := c.defaultHeaders
if corsHeaders == "" {
corsHeaders = "*"
}
logrus.Debugf("CORS header is enabled and set to: %s", corsHeaders)