func FactoidAddOutput(trans fct.ITransaction, key string, address fct.IAddress, amount uint64) error {
ok := Utility.IsValidKey(key)
if !ok {
return fmt.Errorf("Invalid name for transaction")
}
// First look if this is really an update
for _, output := range trans.GetOutputs() {
if output.GetAddress().IsSameAs(address) {
output.SetAmount(amount)
return nil
}
}
// Add our new Output
err := factoidState.GetWallet().AddOutput(trans, address, uint64(amount))
if err != nil {
return fmt.Errorf("Failed to add output")
}
// Update our map with our new transaction to the same key. Otherwise, all
// of our work will go away!
factoidState.GetDB().PutRaw([]byte(fct.DB_BUILD_TRANS), []byte(key), trans)
return nil
}
// Assumes validation has already been done.
func (fs *FactoidState) UpdateTransaction(trans fct.ITransaction) error {
for _, input := range trans.GetInputs() {
err := fs.UpdateBalance(input.GetAddress(), -int64(input.GetAmount()))
if err != nil {
return err
}
}
for _, output := range trans.GetOutputs() {
err := fs.UpdateBalance(output.GetAddress(), int64(output.GetAmount()))
if err != nil {
return err
}
}
for _, ecoutput := range trans.GetECOutputs() {
err := fs.UpdateECBalance(ecoutput.GetAddress(), int64(ecoutput.GetAmount()))
if err != nil {
return err
}
}
fs.numTransactions++
cp.CP.AddUpdate(
"transprocessed", // tag
"status", // Category
fmt.Sprintf("Factoid Transactions Processed: %d", fs.numTransactions), // Title
"", // Message
0) // When to expire the message; 0 is never
return nil
}
func filtertransaction(trans fct.ITransaction, addresses [][]byte) bool {
if addresses == nil || len(addresses) == 0 {
return true
}
if len(trans.GetInputs()) == 0 &&
len(trans.GetOutputs()) == 0 {
return false
}
if len(addresses) == 1 && bytes.Equal(addresses[0], trans.GetSigHash().Bytes()) {
return true
}
Search:
for _, adr := range addresses {
for _, in := range trans.GetInputs() {
if bytes.Equal(adr, in.GetAddress().Bytes()) {
continue Search
}
}
for _, out := range trans.GetOutputs() {
if bytes.Equal(adr, out.GetAddress().Bytes()) {
continue Search
}
}
for _, ec := range trans.GetECOutputs() {
if bytes.Equal(adr, ec.GetAddress().Bytes()) {
continue Search
}
}
return false
}
return true
}
func PrtTrans(t fct.ITransaction) {
fmt.Println("Transaction")
for _, input := range t.GetInputs() {
fmt.Println("in ", input.GetAddress(), input.GetAmount(), fs.GetBalance(input.GetAddress()))
}
for _, output := range t.GetOutputs() {
fmt.Println("out", output.GetAddress(), output.GetAmount(), fs.GetBalance(output.GetAddress()))
}
for _, ecoutput := range t.GetECOutputs() {
fmt.Println("ec ", ecoutput.GetAddress(), ecoutput.GetAmount(), fs.GetECBalance(ecoutput.GetAddress()))
}
}
func FactoidSubFee(trans fct.ITransaction, key string, address fct.IAddress, name string) (uint64, error) {
{
ins, err := trans.TotalInputs()
if err != nil {
return 0, err
}
outs, err := trans.TotalOutputs()
if err != nil {
return 0, err
}
ecs, err := trans.TotalECs()
if err != nil {
return 0, err
}
if ins != outs+ecs {
return 0, fmt.Errorf("Inputs and outputs don't add up")
}
}
ok := Utility.IsValidKey(key)
if !ok {
return 0, fmt.Errorf("Invalid name for transaction")
}
fee, err := GetFee()
if err != nil {
return 0, err
}
transfee, err := trans.CalculateFee(uint64(fee))
if err != nil {
return 0, err
}
adr, err := factoidState.GetWallet().GetAddressHash(address)
if err != nil {
return 0, err
}
for _, output := range trans.GetOutputs() {
if output.GetAddress().IsSameAs(adr) {
output.SetAmount(output.GetAmount() - transfee)
return transfee, nil
}
}
return 0, fmt.Errorf("%s is not an output to the transaction.", name)
}