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// Copyright (C) 2019-2021 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 txnsync
import (
"math"
"testing"
"github.com/stretchr/testify/require"
"github.com/algorand/go-algorand/data/pooldata"
"github.com/algorand/go-algorand/protocol"
"github.com/algorand/go-algorand/test/partitiontest"
)
func TestBadBitmask(t *testing.T) {
partitiontest.PartitionTest(t)
txnGroups, genesisID, genesisHash, err := txnGroupsData(96)
require.NoError(t, err)
var s syncState
ptg, err := badEncodeTransactionGroups(t, &s, txnGroups, 0)
require.NoError(t, err)
require.Equal(t, ptg.CompressionFormat, compressionFormatDeflate)
_, err = decodeTransactionGroups(ptg, genesisID, genesisHash)
require.Equal(t, errIndexNotFound, err)
}
// corrupted bitmask may bcause panic during decoding. This test is to make sure it is an error and not a panic
func badEncodeTransactionGroups(t *testing.T, s *syncState, inTxnGroups []pooldata.SignedTxGroup, dataExchangeRate uint64) (packedTransactionGroups, error) {
txnCount := 0
for _, txGroup := range inTxnGroups {
txnCount += len(txGroup.Transactions)
}
stub := txGroupsEncodingStub{
TotalTransactionsCount: uint64(txnCount),
TransactionGroupCount: uint64(len(inTxnGroups)),
TransactionGroupSizes: make([]byte, 0, len(inTxnGroups)),
}
bitmaskLen := bytesNeededBitmask(int(stub.TotalTransactionsCount))
index := 0
for _, txGroup := range inTxnGroups {
if len(txGroup.Transactions) > 1 {
for _, txn := range txGroup.Transactions {
err := stub.deconstructSignedTransaction(index, &txn)
require.NoError(t, err)
index++
}
stub.TransactionGroupSizes = append(stub.TransactionGroupSizes, byte(len(txGroup.Transactions)-1))
}
}
compactNibblesArray(&stub.TransactionGroupSizes)
for _, txGroup := range inTxnGroups {
if len(txGroup.Transactions) == 1 {
for _, txn := range txGroup.Transactions {
if !txn.Txn.Group.MsgIsZero() {
if len(stub.BitmaskGroup) == 0 {
stub.BitmaskGroup = make(bitmask, bitmaskLen)
}
stub.BitmaskGroup.setBit(index)
}
err := stub.deconstructSignedTransaction(index, &txn)
require.NoError(t, err)
index++
}
}
}
stub.BitmaskAuthAddr.trimBitmask(int(stub.TotalTransactionsCount))
stub.finishDeconstructMsigs()
stub.finishDeconstructLsigs()
stub.BitmaskSig.trimBitmask(int(stub.TotalTransactionsCount))
stub.finishDeconstructTxType()
// corrupted bitmask
stub.BitmaskTxType = make(bitmask, bitmaskLen*10)
stub.BitmaskTxType.setBit(bitmaskLen*10 - 10)
stub.finishDeconstructTxnHeader()
stub.finishDeconstructKeyregTxnFields()
stub.finishDeconstructPaymentTxnFields()
stub.finishDeconstructAssetConfigTxnFields()
stub.finishDeconstructAssetTransferTxnFields()
stub.finishDeconstructAssetFreezeTxnFields()
stub.finishDeconstructApplicationCallTxnFields()
stub.finishDeconstructCompactCertTxnFields()
encoded := stub.MarshalMsg(getMessageBuffer())
// check if time saved by compression: estimatedDeflateCompressionGains * len(msg) / dataExchangeRate
// is greater than by time spent during compression: len(msg) / estimatedDeflateCompressionSpeed
if len(encoded) > minEncodedTransactionGroupsCompressionThreshold && float32(dataExchangeRate) < (estimatedDeflateCompressionGains*estimatedDeflateCompressionSpeed) {
compressedBytes, compressionFormat := s.compressTransactionGroupsBytes(encoded)
if compressionFormat != compressionFormatNone {
packedGroups := packedTransactionGroups{
Bytes: compressedBytes,
CompressionFormat: compressionFormat,
LenDecompressedBytes: uint64(len(encoded)),
}
releaseMessageBuffer(encoded)
return packedGroups, nil
}
}
return packedTransactionGroups{
Bytes: encoded,
CompressionFormat: compressionFormatNone,
}, nil
}
func TestInvalidByteToTxType(t *testing.T) {
partitiontest.PartitionTest(t)
for i := len(protocol.TxnTypes); i <= math.MaxUint8; i++ {
require.Equal(t, protocol.UnknownTx, ByteToTxType(byte(i)))
}
}
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