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package gemini
import "context"
// Handler is a function which can turn a gemini request into a gemini response.
//
// A Handler MUST NOT return a nil response. Errors should be returned in the form
// of error responses (4x, 5x, 6x response status). If the Handler should not be
// responsible for the requested resource it can return a "51 Not Found" response.
type Handler func(context.Context, *Request) *Response
// Middleware is a handle decorator.
//
// It returns a handler which may call the passed-in handler or not, or may
// transform the request or response in some way.
type Middleware func(Handler) Handler
func Fallthrough(handlers ...Handler) Handler {
return func(ctx context.Context, req *Request) *Response {
for _, handler := range handlers {
response := handler(ctx, req)
if response.Status != StatusNotFound {
return response
}
}
return NotFound("Resource does not exist.")
}
}
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