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// Copyright (C) 2019-2024 Algorand, Inc.
// This file is part of go-algorand
//
// go-algorand is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// go-algorand is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with go-algorand. If not, see <https://www.gnu.org/licenses/>.
package main
import (
"fmt"
"reflect"
"github.com/algorand/go-algorand/crypto"
"github.com/algorand/go-algorand/data/basics"
"github.com/algorand/go-algorand/data/transactions"
"github.com/algorand/go-algorand/data/transactions/logic"
"github.com/algorand/go-algorand/protocol"
)
// inspectSignedTxn is isomorphic to SignedTxn but uses different
// types to print public keys using algorand's address format
// (base32 + checksum) in JSON, instead of the default base64.
type inspectSignedTxn struct {
_struct struct{} `codec:",omitempty,omitemptyarray"`
Sig crypto.Signature `codec:"sig"`
Msig inspectMultisigSig `codec:"msig"`
Lsig inspectLogicSig `codec:"lsig"`
Txn transactions.Transaction `codec:"txn"`
AuthAddr basics.Address `codec:"sgnr"`
}
// inspectMultisigSig is isomorphic to MultisigSig but uses different
// types to print public keys using algorand's address format in JSON.
type inspectMultisigSig struct {
_struct struct{} `codec:",omitempty,omitemptyarray"`
Version uint8 `codec:"v"`
Threshold uint8 `codec:"thr"`
Subsigs []inspectMultisigSubsig `codec:"subsig"`
}
// inspectMultisigSig is isomorphic to MultisigSig but uses different
// types to print public keys using algorand's address format in JSON.
type inspectMultisigSubsig struct {
_struct struct{} `codec:",omitempty,omitemptyarray"`
Key basics.Address `codec:"pk"`
Sig crypto.Signature `codec:"s"`
}
// similar to data/transactions/logicsig.go LogicSig but uses types
// that format better as JSON.
type inspectLogicSig struct {
_struct struct{} `codec:",omitempty,omitemptyarray"`
// Logic signed by Sig or Msig, OR hashed to be the Address of an account.
Logic inspectProgram `codec:"l"`
Sig crypto.Signature `codec:"sig"`
Msig inspectMultisigSig `codec:"msig"`
// Args are not signed, but checked by Logic
Args [][]byte `codec:"arg"`
}
type inspectProgram []byte
func (prog inspectProgram) String() string {
text, err := logic.Disassemble([]byte(prog))
if err != nil {
return err.Error()
}
return text
}
func (prog inspectProgram) GoString() string {
return prog.String()
}
func (prog inspectProgram) MarshalText() ([]byte, error) {
text, err := logic.Disassemble([]byte(prog))
return []byte(text), err
}
func (prog *inspectProgram) UnmarshalText(text []byte) error {
ops, err := logic.AssembleString(string(text))
if err == nil {
*prog = ops.Program
}
return err
}
func inspectTxn(stxn transactions.SignedTxn) (sti inspectSignedTxn, err error) {
sti = stxnToInspect(stxn)
if !reflect.DeepEqual(stxn, stxnFromInspect(sti)) {
err = fmt.Errorf("non-idempotent transformation to inspectSignedTxn (DeepEqual)")
return
}
if !reflect.DeepEqual(protocol.EncodeReflect(sti), protocol.Encode(&stxn)) {
err = fmt.Errorf("non-idempotent transformation to inspectSignedTxn (protocol.Encode)")
return
}
return
}
func stxnToInspect(stxn transactions.SignedTxn) inspectSignedTxn {
return inspectSignedTxn{
Txn: stxn.Txn,
Sig: stxn.Sig,
Msig: msigToInspect(stxn.Msig),
Lsig: lsigToInspect(stxn.Lsig),
AuthAddr: stxn.AuthAddr,
}
}
func stxnFromInspect(sti inspectSignedTxn) transactions.SignedTxn {
return transactions.SignedTxn{
Txn: sti.Txn,
Sig: sti.Sig,
Msig: msigFromInspect(sti.Msig),
Lsig: lsigFromInspect(sti.Lsig),
AuthAddr: sti.AuthAddr,
}
}
func msigToInspect(msig crypto.MultisigSig) inspectMultisigSig {
res := inspectMultisigSig{
Version: msig.Version,
Threshold: msig.Threshold,
}
for _, subsig := range msig.Subsigs {
res.Subsigs = append(res.Subsigs, inspectMultisigSubsig{
Sig: subsig.Sig,
Key: basics.Address(subsig.Key),
})
}
return res
}
func msigFromInspect(msi inspectMultisigSig) crypto.MultisigSig {
res := crypto.MultisigSig{
Version: msi.Version,
Threshold: msi.Threshold,
}
for _, subsig := range msi.Subsigs {
res.Subsigs = append(res.Subsigs, crypto.MultisigSubsig{
Sig: subsig.Sig,
Key: crypto.PublicKey(subsig.Key),
})
}
return res
}
func lsigToInspect(lsig transactions.LogicSig) inspectLogicSig {
return inspectLogicSig{
Logic: inspectProgram(lsig.Logic),
Sig: lsig.Sig,
Msig: msigToInspect(lsig.Msig),
Args: lsig.Args,
}
}
func lsigFromInspect(lsig inspectLogicSig) transactions.LogicSig {
return transactions.LogicSig{
Logic: []byte(lsig.Logic),
Sig: lsig.Sig,
Msig: msigFromInspect(lsig.Msig),
Args: lsig.Args,
}
}
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