talelbaz 8a309a7d2a
Upgradability mechanisms script version (#1313)
* ''

* ''

* ''

* Changes genesis block version to 0.

* a

* a

* All tests are done.

* All tests passed for changed block version from int32 to uint16

* Adds validation of rejecting blocks with unknown versions.

* Changes txn version from int32 to uint16.

* .

* Adds comments to exported functions.

* Change functions name from ConvertFromRpcScriptPubKeyToRPCScriptPubKey to ConvertFromAppMsgRPCScriptPubKeyToRPCScriptPubKey and from ConvertFromRPCScriptPubKeyToRpcScriptPubKey to ConvertFromRPCScriptPubKeyToAppMsgRPCScriptPubKey

* change comment to "ScriptPublicKey represents a Kaspad ScriptPublicKey"

* delete part (tx.Version < 0) that cannot be exist on the if statement.

* Revert protobuf version.

* Fix a comment.

* Fix a comment.

* Rename a variable.

* Rename a variable.

* Remove a const.

* Rename a type.

* Rename a field.

* Rename a field.

* Remove commented-out code.

* Remove dangerous nil case in DomainTransactionOutput.Clone().

* Remove a constant.

* Fix a string.

* Fix wrong totalScriptPubKeySize in transactionMassStandalonePart.

* Remove a constant.

* Remove an unused error.

* Fix a serialization error.

* Specify version types to be uint16 explicitly.

* Use constants.ScriptPublicKeyVersion.

* Fix a bad test.

* Remove some whitespace.

* Add a case to utxoEntry.Equal().

* Rename scriptPubKey to scriptPublicKey.

* Remove a TODO.

* Rename constants.

* Rename a variable.

* Add version to parseShortForm.

Co-authored-by: tal <tal@daglabs.com>
Co-authored-by: stasatdaglabs <stas@daglabs.com>
2021-01-05 17:50:09 +02:00

80 lines
2.3 KiB
Go

// Copyright (c) 2014-2016 The btcsuite developers
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.
package txscript_test
import (
"encoding/hex"
"fmt"
"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
"github.com/kaspanet/kaspad/domain/consensus/utils/txscript"
"github.com/kaspanet/kaspad/domain/dagconfig"
"github.com/kaspanet/kaspad/util"
)
// This example demonstrates creating a script which pays to a kaspa address.
// It also prints the created script hex and uses the DisasmString function to
// display the disassembled script.
func ExamplePayToAddrScript() {
// Parse the address to send the coins to into a util.Address
// which is useful to ensure the accuracy of the address and determine
// the address type. It is also required for the upcoming call to
// PayToAddrScript.
addressStr := "kaspa:qqfgqp8l9l90zwetj84k2jcac2m8falvvyy8xjtnhd"
address, err := util.DecodeAddress(addressStr, util.Bech32PrefixKaspa)
if err != nil {
fmt.Println(err)
return
}
// Create a public key script that pays to the address.
script, err := txscript.PayToAddrScript(address)
if err != nil {
fmt.Println(err)
return
}
fmt.Printf("Script Hex: %x\n", script.Script)
disasm, err := txscript.DisasmString(script.Version, script.Script)
if err != nil {
fmt.Println(err)
return
}
fmt.Println("Script Disassembly:", disasm)
// Output:
// Script Hex: 76a914128004ff2fcaf13b2b91eb654b1dc2b674f7ec6188ac
// Script Disassembly: OP_DUP OP_HASH160 128004ff2fcaf13b2b91eb654b1dc2b674f7ec61 OP_EQUALVERIFY OP_CHECKSIG
}
// This example demonstrates extracting information from a standard public key
// script.
func ExampleExtractScriptPubKeyAddress() {
// Start with a standard pay-to-pubkey-hash script.
scriptHex := "76a914128004ff2fcaf13b2b91eb654b1dc2b674f7ec6188ac"
script, err := hex.DecodeString(scriptHex)
if err != nil {
fmt.Println(err)
return
}
// Extract and print details from the script.
scriptClass, address, err := txscript.ExtractScriptPubKeyAddress(
&externalapi.ScriptPublicKey{
Script: script,
Version: 0,
}, &dagconfig.MainnetParams)
if err != nil {
fmt.Println(err)
return
}
fmt.Println("Script Class:", scriptClass)
fmt.Println("Address:", address)
// Output:
// Script Class: pubkeyhash
// Address: kaspa:qqfgqp8l9l90zwetj84k2jcac2m8falvvyy8xjtnhd
}