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core: allow to use verification contracts

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In NEO3 we can't just appcall hash, as verification script has no access
to state. Instead we use `verify` method of an arbitrary contract.
This commit is contained in:
Evgenii Stratonikov 2020-08-13 18:42:53 +03:00
parent 7f2a931fb6
commit 1eb9a4c6c6
4 changed files with 75 additions and 6 deletions
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37
pkg/core/blockchain_test.go
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@ -16,6 +16,7 @@ import (
"github.com/nspcc-dev/neo-go/pkg/crypto/hash"
"github.com/nspcc-dev/neo-go/pkg/internal/testchain"
"github.com/nspcc-dev/neo-go/pkg/io"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/trigger"
"github.com/nspcc-dev/neo-go/pkg/util"
"github.com/nspcc-dev/neo-go/pkg/vm"
"github.com/nspcc-dev/neo-go/pkg/vm/emit"
@ -300,6 +301,42 @@ func TestVerifyTx(t *testing.T) {
})
}
func TestVerifyHashAgainstScript(t *testing.T) {
bc := newTestChain(t)
defer bc.Close()
cs, csInvalid := getTestContractState()
ic := bc.newInteropContext(trigger.Verification, bc.dao, nil, nil)
require.NoError(t, ic.DAO.PutContractState(cs))
require.NoError(t, ic.DAO.PutContractState(csInvalid))
gas := bc.contracts.Policy.GetMaxVerificationGas(ic.DAO)
t.Run("Contract", func(t *testing.T) {
t.Run("Missing", func(t *testing.T) {
newH := cs.ScriptHash()
newH[0] = ^newH[0]
w := &transaction.Witness{InvocationScript: []byte{byte(opcode.PUSH4)}}
err := bc.verifyHashAgainstScript(newH, w, ic, false, gas)
require.True(t, errors.Is(err, ErrUnknownVerificationContract))
})
t.Run("Invalid", func(t *testing.T) {
w := &transaction.Witness{InvocationScript: []byte{byte(opcode.PUSH4)}}
err := bc.verifyHashAgainstScript(csInvalid.ScriptHash(), w, ic, false, gas)
require.True(t, errors.Is(err, ErrInvalidVerificationContract))
})
t.Run("ValidSignature", func(t *testing.T) {
w := &transaction.Witness{InvocationScript: []byte{byte(opcode.PUSH4)}}
err := bc.verifyHashAgainstScript(cs.ScriptHash(), w, ic, false, gas)
require.NoError(t, err)
})
t.Run("InvalidSignature", func(t *testing.T) {
w := &transaction.Witness{InvocationScript: []byte{byte(opcode.PUSH3)}}
err := bc.verifyHashAgainstScript(cs.ScriptHash(), w, ic, false, gas)
require.True(t, errors.Is(err, ErrVerificationFailed))
})
})
}
func TestHasBlock(t *testing.T) {
bc := newTestChain(t)
blocks, err := bc.genBlocks(50)