package gorilla import ( "crypto/rand" "github.com/gorilla/sessions" "github.com/pkg/errors" ) // CreateCookieSessionStore creates and returns a new cookie session store // with random authentication and encryption keys func CreateCookieSessionStore(authKeySize, encryptKeySize int, defaultOptions *sessions.Options) (sessions.Store, error) { authenticationKey, err := generateRandomBytes(authKeySize) if err != nil { return nil, errors.Wrap(err, "error while generating cookie authentication key") } encryptionKey, err := generateRandomBytes(encryptKeySize) if err != nil { return nil, errors.Wrap(err, "error while generating cookie encryption key") } store := sessions.NewCookieStore(authenticationKey, encryptionKey) store.Options = defaultOptions return store, nil } func generateRandomBytes(n int) ([]byte, error) { b := make([]byte, n) _, err := rand.Read(b) if err != nil { return nil, err } return b, nil }