// walletSeedHandler handles API calls to /wallet/seed.
func (api *API) walletSeedHandler(w http.ResponseWriter, req *http.Request, _ httprouter.Params) {
// Get the seed using the ditionary + phrase
dictID := mnemonics.DictionaryID(req.FormValue("dictionary"))
if dictID == "" {
dictID = "english"
}
seed, err := modules.StringToSeed(req.FormValue("seed"), dictID)
if err != nil {
WriteError(w, Error{"error when calling /wallet/seed: " + err.Error()}, http.StatusBadRequest)
return
}
potentialKeys := encryptionKeys(req.FormValue("encryptionpassword"))
for _, key := range potentialKeys {
err := api.wallet.LoadSeed(key, seed)
if err == nil {
WriteSuccess(w)
return
}
if err != nil && err != modules.ErrBadEncryptionKey {
WriteError(w, Error{"error when calling /wallet/seed: " + err.Error()}, http.StatusBadRequest)
return
}
}
WriteError(w, Error{"error when calling /wallet/seed: " + modules.ErrBadEncryptionKey.Error()}, http.StatusBadRequest)
}
// encryptionKeys enumerates the possible encryption keys that can be derived
// from an input string.
func encryptionKeys(seedStr string) (validKeys []crypto.TwofishKey) {
dicts := []mnemonics.DictionaryID{"english", "german", "japanese"}
for _, dict := range dicts {
seed, err := modules.StringToSeed(seedStr, dict)
if err != nil {
continue
}
validKeys = append(validKeys, crypto.TwofishKey(crypto.HashObject(seed)))
}
validKeys = append(validKeys, crypto.TwofishKey(crypto.HashObject(seedStr)))
return validKeys
}
// walletSeedsHandlerPOST handles a POST request to /wallet/seeds.
func (srv *Server) walletSeedsHandlerPOST(w http.ResponseWriter, req *http.Request) {
// Get the seed using the ditionary + phrase
dictID := mnemonics.DictionaryID(req.FormValue("dictionary"))
seed, err := modules.StringToSeed(req.FormValue("seed"), dictID)
if err != nil {
writeError(w, "error when calling /wallet/seeds: "+err.Error(), http.StatusBadRequest)
return
}
potentialKeys := encryptionKeys(req.FormValue("encryptionpassword"))
for _, key := range potentialKeys {
err := srv.wallet.RecoverSeed(key, seed)
if err == nil {
writeSuccess(w)
return
}
if err != nil && err != modules.ErrBadEncryptionKey {
writeError(w, "error when calling /wallet/seeds: "+err.Error(), http.StatusBadRequest)
return
}
}
writeError(w, "error when calling /wallet/seeds: "+modules.ErrBadEncryptionKey.Error(), http.StatusBadRequest)
}