mirror of
https://github.com/dutchcoders/transfer.sh.git
synced 2024-12-11 13:20:19 +01:00
cb6e5cb0c7
* use dep for vendoring * lets encrypt * moved web to transfer.sh-web repo * single command install * added first tests
30 lines
719 B
Go
30 lines
719 B
Go
package handlers
|
|
|
|
import (
|
|
"net/http"
|
|
)
|
|
|
|
// This interface can be implemented by an augmented ResponseWriter, so that
|
|
// it doesn't hide other augmented writers in the chain.
|
|
type WrapWriter interface {
|
|
http.ResponseWriter
|
|
WrappedWriter() http.ResponseWriter
|
|
}
|
|
|
|
// Helper function to retrieve a specific ResponseWriter.
|
|
func GetResponseWriter(w http.ResponseWriter,
|
|
predicate func(http.ResponseWriter) bool) (http.ResponseWriter, bool) {
|
|
|
|
for {
|
|
// Check if this writer is the one we're looking for
|
|
if w != nil && predicate(w) {
|
|
return w, true
|
|
}
|
|
// If it is a WrapWriter, move back the chain of wrapped writers
|
|
ww, ok := w.(WrapWriter)
|
|
if !ok {
|
|
return nil, false
|
|
}
|
|
w = ww.WrappedWriter()
|
|
}
|
|
}
|