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wallet.go
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wallet.go
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package api
import (
"encoding/json"
"fmt"
"math"
"net/http"
"path/filepath"
"strconv"
"strings"
"github.com/NebulousLabs/Sia/crypto"
"github.com/NebulousLabs/Sia/modules"
"github.com/NebulousLabs/Sia/types"
"github.com/NebulousLabs/entropy-mnemonics"
"github.com/julienschmidt/httprouter"
)
type (
// WalletGET contains general information about the wallet.
WalletGET struct {
Encrypted bool `json:"encrypted"`
Height types.BlockHeight `json:"height"`
Rescanning bool `json:"rescanning"`
Unlocked bool `json:"unlocked"`
ConfirmedSiacoinBalance types.Currency `json:"confirmedsiacoinbalance"`
UnconfirmedOutgoingSiacoins types.Currency `json:"unconfirmedoutgoingsiacoins"`
UnconfirmedIncomingSiacoins types.Currency `json:"unconfirmedincomingsiacoins"`
SiacoinClaimBalance types.Currency `json:"siacoinclaimbalance"`
SiafundBalance types.Currency `json:"siafundbalance"`
DustThreshold types.Currency `json:"dustthreshold"`
}
// WalletAddressGET contains an address returned by a GET call to
// /wallet/address.
WalletAddressGET struct {
Address types.UnlockHash `json:"address"`
}
// WalletAddressesGET contains the list of wallet addresses returned by a
// GET call to /wallet/addresses.
WalletAddressesGET struct {
Addresses []types.UnlockHash `json:"addresses"`
}
// WalletInitPOST contains the primary seed that gets generated during a
// POST call to /wallet/init.
WalletInitPOST struct {
PrimarySeed string `json:"primaryseed"`
}
// WalletSiacoinsPOST contains the transaction sent in the POST call to
// /wallet/siacoins.
WalletSiacoinsPOST struct {
TransactionIDs []types.TransactionID `json:"transactionids"`
}
// WalletSiafundsPOST contains the transaction sent in the POST call to
// /wallet/siafunds.
WalletSiafundsPOST struct {
TransactionIDs []types.TransactionID `json:"transactionids"`
}
// WalletSeedsGET contains the seeds used by the wallet.
WalletSeedsGET struct {
PrimarySeed string `json:"primaryseed"`
AddressesRemaining int `json:"addressesremaining"`
AllSeeds []string `json:"allseeds"`
}
// WalletSweepPOST contains the coins and funds returned by a call to
// /wallet/sweep.
WalletSweepPOST struct {
Coins types.Currency `json:"coins"`
Funds types.Currency `json:"funds"`
}
// WalletTransactionGETid contains the transaction returned by a call to
// /wallet/transaction/:id
WalletTransactionGETid struct {
Transaction modules.ProcessedTransaction `json:"transaction"`
}
// WalletTransactionsGET contains the specified set of confirmed and
// unconfirmed transactions.
WalletTransactionsGET struct {
ConfirmedTransactions []modules.ProcessedTransaction `json:"confirmedtransactions"`
UnconfirmedTransactions []modules.ProcessedTransaction `json:"unconfirmedtransactions"`
}
// WalletTransactionsGETaddr contains the set of wallet transactions
// relevant to the input address provided in the call to
// /wallet/transaction/:addr
WalletTransactionsGETaddr struct {
ConfirmedTransactions []modules.ProcessedTransaction `json:"confirmedtransactions"`
UnconfirmedTransactions []modules.ProcessedTransaction `json:"unconfirmedtransactions"`
}
// WalletVerifyAddressGET contains a bool indicating if the address passed to
// /wallet/verify/address/:addr is a valid address.
WalletVerifyAddressGET struct {
Valid bool `json:"valid"`
}
)
// 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
}
// walletHander handles API calls to /wallet.
func (api *API) walletHandler(w http.ResponseWriter, req *http.Request, _ httprouter.Params) {
siacoinBal, siafundBal, siaclaimBal, err := api.wallet.ConfirmedBalance()
if err != nil {
WriteError(w, Error{fmt.Sprintf("Error when calling /wallet: %v", err)}, http.StatusBadRequest)
return
}
siacoinsOut, siacoinsIn, err := api.wallet.UnconfirmedBalance()
if err != nil {
WriteError(w, Error{fmt.Sprintf("Error when calling /wallet: %v", err)}, http.StatusBadRequest)
return
}
dustThreshold, err := api.wallet.DustThreshold()
if err != nil {
WriteError(w, Error{fmt.Sprintf("Error when calling /wallet: %v", err)}, http.StatusBadRequest)
return
}
encrypted, err := api.wallet.Encrypted()
if err != nil {
WriteError(w, Error{fmt.Sprintf("Error when calling /wallet: %v", err)}, http.StatusBadRequest)
return
}
unlocked, err := api.wallet.Unlocked()
if err != nil {
WriteError(w, Error{fmt.Sprintf("Error when calling /wallet: %v", err)}, http.StatusBadRequest)
return
}
rescanning, err := api.wallet.Rescanning()
if err != nil {
WriteError(w, Error{fmt.Sprintf("Error when calling /wallet: %v", err)}, http.StatusBadRequest)
return
}
height, err := api.wallet.Height()
if err != nil {
WriteError(w, Error{fmt.Sprintf("Error when calling /wallet: %v", err)}, http.StatusBadRequest)
return
}
WriteJSON(w, WalletGET{
Encrypted: encrypted,
Unlocked: unlocked,
Rescanning: rescanning,
Height: height,
ConfirmedSiacoinBalance: siacoinBal,
UnconfirmedOutgoingSiacoins: siacoinsOut,
UnconfirmedIncomingSiacoins: siacoinsIn,
SiafundBalance: siafundBal,
SiacoinClaimBalance: siaclaimBal,
DustThreshold: dustThreshold,
})
}
// wallet033xHandler handles API calls to /wallet/033x.
func (api *API) wallet033xHandler(w http.ResponseWriter, req *http.Request, _ httprouter.Params) {
source := req.FormValue("source")
// Check that source is an absolute paths.
if !filepath.IsAbs(source) {
WriteError(w, Error{"error when calling /wallet/033x: source must be an absolute path"}, http.StatusBadRequest)
return
}
potentialKeys := encryptionKeys(req.FormValue("encryptionpassword"))
for _, key := range potentialKeys {
err := api.wallet.Load033xWallet(key, source)
if err == nil {
WriteSuccess(w)
return
}
if err != nil && err != modules.ErrBadEncryptionKey {
WriteError(w, Error{"error when calling /wallet/033x: " + err.Error()}, http.StatusBadRequest)
return
}
}
WriteError(w, Error{modules.ErrBadEncryptionKey.Error()}, http.StatusBadRequest)
}
// walletAddressHandler handles API calls to /wallet/address.
func (api *API) walletAddressHandler(w http.ResponseWriter, req *http.Request, _ httprouter.Params) {
unlockConditions, err := api.wallet.NextAddress()
if err != nil {
WriteError(w, Error{"error when calling /wallet/addresses: " + err.Error()}, http.StatusBadRequest)
return
}
WriteJSON(w, WalletAddressGET{
Address: unlockConditions.UnlockHash(),
})
}
// walletAddressHandler handles API calls to /wallet/addresses.
func (api *API) walletAddressesHandler(w http.ResponseWriter, req *http.Request, _ httprouter.Params) {
addresses, err := api.wallet.AllAddresses()
if err != nil {
WriteError(w, Error{fmt.Sprintf("Error when calling /wallet/addresses: %v", err)}, http.StatusBadRequest)
return
}
WriteJSON(w, WalletAddressesGET{
Addresses: addresses,
})
}
// walletBackupHandler handles API calls to /wallet/backup.
func (api *API) walletBackupHandler(w http.ResponseWriter, req *http.Request, _ httprouter.Params) {
destination := req.FormValue("destination")
// Check that the destination is absolute.
if !filepath.IsAbs(destination) {
WriteError(w, Error{"error when calling /wallet/backup: destination must be an absolute path"}, http.StatusBadRequest)
return
}
err := api.wallet.CreateBackup(destination)
if err != nil {
WriteError(w, Error{"error when calling /wallet/backup: " + err.Error()}, http.StatusBadRequest)
return
}
WriteSuccess(w)
}
// walletInitHandler handles API calls to /wallet/init.
func (api *API) walletInitHandler(w http.ResponseWriter, req *http.Request, _ httprouter.Params) {
var encryptionKey crypto.TwofishKey
if req.FormValue("encryptionpassword") != "" {
encryptionKey = crypto.TwofishKey(crypto.HashObject(req.FormValue("encryptionpassword")))
}
if req.FormValue("force") == "true" {
err := api.wallet.Reset()
if err != nil {
WriteError(w, Error{"error when calling /wallet/init: " + err.Error()}, http.StatusBadRequest)
return
}
}
seed, err := api.wallet.Encrypt(encryptionKey)
if err != nil {
WriteError(w, Error{"error when calling /wallet/init: " + err.Error()}, http.StatusBadRequest)
return
}
dictID := mnemonics.DictionaryID(req.FormValue("dictionary"))
if dictID == "" {
dictID = "english"
}
seedStr, err := modules.SeedToString(seed, dictID)
if err != nil {
WriteError(w, Error{"error when calling /wallet/init: " + err.Error()}, http.StatusBadRequest)
return
}
WriteJSON(w, WalletInitPOST{
PrimarySeed: seedStr,
})
}
// walletInitSeedHandler handles API calls to /wallet/init/seed.
func (api *API) walletInitSeedHandler(w http.ResponseWriter, req *http.Request, _ httprouter.Params) {
var encryptionKey crypto.TwofishKey
if req.FormValue("encryptionpassword") != "" {
encryptionKey = crypto.TwofishKey(crypto.HashObject(req.FormValue("encryptionpassword")))
}
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/init/seed: " + err.Error()}, http.StatusBadRequest)
return
}
if req.FormValue("force") == "true" {
err = api.wallet.Reset()
if err != nil {
WriteError(w, Error{"error when calling /wallet/init/seed: " + err.Error()}, http.StatusBadRequest)
return
}
}
err = api.wallet.InitFromSeed(encryptionKey, seed)
if err != nil {
WriteError(w, Error{"error when calling /wallet/init/seed: " + err.Error()}, http.StatusBadRequest)
return
}
WriteSuccess(w)
}
// 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)
}
// walletSiagkeyHandler handles API calls to /wallet/siagkey.
func (api *API) walletSiagkeyHandler(w http.ResponseWriter, req *http.Request, _ httprouter.Params) {
// Fetch the list of keyfiles from the post body.
keyfiles := strings.Split(req.FormValue("keyfiles"), ",")
potentialKeys := encryptionKeys(req.FormValue("encryptionpassword"))
for _, keypath := range keyfiles {
// Check that all key paths are absolute paths.
if !filepath.IsAbs(keypath) {
WriteError(w, Error{"error when calling /wallet/siagkey: keyfiles contains a non-absolute path"}, http.StatusBadRequest)
return
}
}
for _, key := range potentialKeys {
err := api.wallet.LoadSiagKeys(key, keyfiles)
if err == nil {
WriteSuccess(w)
return
}
if err != nil && err != modules.ErrBadEncryptionKey {
WriteError(w, Error{"error when calling /wallet/siagkey: " + err.Error()}, http.StatusBadRequest)
return
}
}
WriteError(w, Error{"error when calling /wallet/siagkey: " + modules.ErrBadEncryptionKey.Error()}, http.StatusBadRequest)
}
// walletLockHanlder handles API calls to /wallet/lock.
func (api *API) walletLockHandler(w http.ResponseWriter, req *http.Request, _ httprouter.Params) {
err := api.wallet.Lock()
if err != nil {
WriteError(w, Error{err.Error()}, http.StatusBadRequest)
return
}
WriteSuccess(w)
}
// walletSeedsHandler handles API calls to /wallet/seeds.
func (api *API) walletSeedsHandler(w http.ResponseWriter, req *http.Request, _ httprouter.Params) {
dictionary := mnemonics.DictionaryID(req.FormValue("dictionary"))
if dictionary == "" {
dictionary = mnemonics.English
}
// Get the primary seed information.
primarySeed, addrsRemaining, err := api.wallet.PrimarySeed()
if err != nil {
WriteError(w, Error{"error when calling /wallet/seeds: " + err.Error()}, http.StatusBadRequest)
return
}
primarySeedStr, err := modules.SeedToString(primarySeed, dictionary)
if err != nil {
WriteError(w, Error{"error when calling /wallet/seeds: " + err.Error()}, http.StatusBadRequest)
return
}
// Get the list of seeds known to the wallet.
allSeeds, err := api.wallet.AllSeeds()
if err != nil {
WriteError(w, Error{"error when calling /wallet/seeds: " + err.Error()}, http.StatusBadRequest)
return
}
var allSeedsStrs []string
for _, seed := range allSeeds {
str, err := modules.SeedToString(seed, dictionary)
if err != nil {
WriteError(w, Error{"error when calling /wallet/seeds: " + err.Error()}, http.StatusBadRequest)
return
}
allSeedsStrs = append(allSeedsStrs, str)
}
WriteJSON(w, WalletSeedsGET{
PrimarySeed: primarySeedStr,
AddressesRemaining: int(addrsRemaining),
AllSeeds: allSeedsStrs,
})
}
// walletSiacoinsHandler handles API calls to /wallet/siacoins.
func (api *API) walletSiacoinsHandler(w http.ResponseWriter, req *http.Request, _ httprouter.Params) {
var txns []types.Transaction
if req.FormValue("outputs") != "" {
// multiple amounts + destinations
if req.FormValue("amount") != "" || req.FormValue("destination") != "" {
WriteError(w, Error{"cannot supply both 'outputs' and single amount+destination pair"}, http.StatusInternalServerError)
return
}
var outputs []types.SiacoinOutput
err := json.Unmarshal([]byte(req.FormValue("outputs")), &outputs)
if err != nil {
WriteError(w, Error{"could not decode outputs: " + err.Error()}, http.StatusInternalServerError)
return
}
txns, err = api.wallet.SendSiacoinsMulti(outputs)
if err != nil {
WriteError(w, Error{"error when calling /wallet/siacoins: " + err.Error()}, http.StatusInternalServerError)
return
}
} else {
// single amount + destination
amount, ok := scanAmount(req.FormValue("amount"))
if !ok {
WriteError(w, Error{"could not read amount from POST call to /wallet/siacoins"}, http.StatusBadRequest)
return
}
dest, err := scanAddress(req.FormValue("destination"))
if err != nil {
WriteError(w, Error{"could not read address from POST call to /wallet/siacoins"}, http.StatusBadRequest)
return
}
txns, err = api.wallet.SendSiacoins(amount, dest)
if err != nil {
WriteError(w, Error{"error when calling /wallet/siacoins: " + err.Error()}, http.StatusInternalServerError)
return
}
}
var txids []types.TransactionID
for _, txn := range txns {
txids = append(txids, txn.ID())
}
WriteJSON(w, WalletSiacoinsPOST{
TransactionIDs: txids,
})
}
// walletSiafundsHandler handles API calls to /wallet/siafunds.
func (api *API) walletSiafundsHandler(w http.ResponseWriter, req *http.Request, _ httprouter.Params) {
amount, ok := scanAmount(req.FormValue("amount"))
if !ok {
WriteError(w, Error{"could not read 'amount' from POST call to /wallet/siafunds"}, http.StatusBadRequest)
return
}
dest, err := scanAddress(req.FormValue("destination"))
if err != nil {
WriteError(w, Error{"error when calling /wallet/siafunds: " + err.Error()}, http.StatusBadRequest)
return
}
txns, err := api.wallet.SendSiafunds(amount, dest)
if err != nil {
WriteError(w, Error{"error when calling /wallet/siafunds: " + err.Error()}, http.StatusInternalServerError)
return
}
var txids []types.TransactionID
for _, txn := range txns {
txids = append(txids, txn.ID())
}
WriteJSON(w, WalletSiafundsPOST{
TransactionIDs: txids,
})
}
// walletSweepSeedHandler handles API calls to /wallet/sweep/seed.
func (api *API) walletSweepSeedHandler(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/sweep/seed: " + err.Error()}, http.StatusBadRequest)
return
}
coins, funds, err := api.wallet.SweepSeed(seed)
if err != nil {
WriteError(w, Error{"error when calling /wallet/sweep/seed: " + err.Error()}, http.StatusBadRequest)
return
}
WriteJSON(w, WalletSweepPOST{
Coins: coins,
Funds: funds,
})
}
// walletTransactionHandler handles API calls to /wallet/transaction/:id.
func (api *API) walletTransactionHandler(w http.ResponseWriter, req *http.Request, ps httprouter.Params) {
// Parse the id from the url.
var id types.TransactionID
jsonID := "\"" + ps.ByName("id") + "\""
err := id.UnmarshalJSON([]byte(jsonID))
if err != nil {
WriteError(w, Error{"error when calling /wallet/transaction/id:" + err.Error()}, http.StatusBadRequest)
return
}
txn, ok, err := api.wallet.Transaction(id)
if err != nil {
WriteError(w, Error{"error when calling /wallet/transaction/id:" + err.Error()}, http.StatusBadRequest)
return
}
if !ok {
WriteError(w, Error{"error when calling /wallet/transaction/:id : transaction not found"}, http.StatusBadRequest)
return
}
WriteJSON(w, WalletTransactionGETid{
Transaction: txn,
})
}
// walletTransactionsHandler handles API calls to /wallet/transactions.
func (api *API) walletTransactionsHandler(w http.ResponseWriter, req *http.Request, _ httprouter.Params) {
startheightStr, endheightStr := req.FormValue("startheight"), req.FormValue("endheight")
if startheightStr == "" || endheightStr == "" {
WriteError(w, Error{"startheight and endheight must be provided to a /wallet/transactions call."}, http.StatusBadRequest)
return
}
// Get the start and end blocks.
start, err := strconv.ParseUint(startheightStr, 10, 64)
if err != nil {
WriteError(w, Error{"parsing integer value for parameter `startheight` failed: " + err.Error()}, http.StatusBadRequest)
return
}
// Check if endheightStr is set to -1. If it is, we use MaxUint64 as the
// end. Otherwise we parse the argument as an unsigned integer.
var end uint64
if endheightStr == "-1" {
end = math.MaxUint64
} else {
end, err = strconv.ParseUint(endheightStr, 10, 64)
}
if err != nil {
WriteError(w, Error{"parsing integer value for parameter `endheight` failed: " + err.Error()}, http.StatusBadRequest)
return
}
confirmedTxns, err := api.wallet.Transactions(types.BlockHeight(start), types.BlockHeight(end))
if err != nil {
WriteError(w, Error{"error when calling /wallet/transactions: " + err.Error()}, http.StatusBadRequest)
return
}
unconfirmedTxns, err := api.wallet.UnconfirmedTransactions()
if err != nil {
WriteError(w, Error{"error when calling /wallet/transactions: " + err.Error()}, http.StatusBadRequest)
return
}
WriteJSON(w, WalletTransactionsGET{
ConfirmedTransactions: confirmedTxns,
UnconfirmedTransactions: unconfirmedTxns,
})
}
// walletTransactionsAddrHandler handles API calls to
// /wallet/transactions/:addr.
func (api *API) walletTransactionsAddrHandler(w http.ResponseWriter, req *http.Request, ps httprouter.Params) {
// Parse the address being input.
jsonAddr := "\"" + ps.ByName("addr") + "\""
var addr types.UnlockHash
err := addr.UnmarshalJSON([]byte(jsonAddr))
if err != nil {
WriteError(w, Error{"error when calling /wallet/transactions: " + err.Error()}, http.StatusBadRequest)
return
}
confirmedATs, err := api.wallet.AddressTransactions(addr)
if err != nil {
WriteError(w, Error{"error when calling /wallet/transactions: " + err.Error()}, http.StatusBadRequest)
return
}
unconfirmedATs, err := api.wallet.AddressUnconfirmedTransactions(addr)
if err != nil {
WriteError(w, Error{"error when calling /wallet/transactions: " + err.Error()}, http.StatusBadRequest)
return
}
WriteJSON(w, WalletTransactionsGETaddr{
ConfirmedTransactions: confirmedATs,
UnconfirmedTransactions: unconfirmedATs,
})
}
// walletUnlockHandler handles API calls to /wallet/unlock.
func (api *API) walletUnlockHandler(w http.ResponseWriter, req *http.Request, _ httprouter.Params) {
potentialKeys := encryptionKeys(req.FormValue("encryptionpassword"))
for _, key := range potentialKeys {
err := api.wallet.Unlock(key)
if err == nil {
WriteSuccess(w)
return
}
if err != nil && err != modules.ErrBadEncryptionKey {
WriteError(w, Error{"error when calling /wallet/unlock: " + err.Error()}, http.StatusBadRequest)
return
}
}
WriteError(w, Error{"error when calling /wallet/unlock: " + modules.ErrBadEncryptionKey.Error()}, http.StatusBadRequest)
}
// walletChangePasswordHandler handles API calls to /wallet/changepassword
func (api *API) walletChangePasswordHandler(w http.ResponseWriter, req *http.Request, _ httprouter.Params) {
var newKey crypto.TwofishKey
newPassword := req.FormValue("newpassword")
if newPassword == "" {
WriteError(w, Error{"a password must be provided to newpassword"}, http.StatusBadRequest)
return
}
newKey = crypto.TwofishKey(crypto.HashObject(newPassword))
originalKeys := encryptionKeys(req.FormValue("encryptionpassword"))
for _, key := range originalKeys {
err := api.wallet.ChangeKey(key, newKey)
if err == nil {
WriteSuccess(w)
return
}
if err != nil && err != modules.ErrBadEncryptionKey {
WriteError(w, Error{"error when calling /wallet/changepassword: " + err.Error()}, http.StatusBadRequest)
return
}
}
WriteError(w, Error{"error when calling /wallet/changepassword: " + modules.ErrBadEncryptionKey.Error()}, http.StatusBadRequest)
}
// walletVerifyAddressHandler handles API calls to /wallet/verify/address/:addr.
func (api *API) walletVerifyAddressHandler(w http.ResponseWriter, req *http.Request, ps httprouter.Params) {
addrString := ps.ByName("addr")
err := new(types.UnlockHash).LoadString(addrString)
WriteJSON(w, WalletVerifyAddressGET{Valid: err == nil})
}