func LoadState(db dbm.DB) *State {
s := &State{DB: db}
buf := db.Get(stateKey)
if len(buf) == 0 {
return nil
} else {
r, n, err := bytes.NewReader(buf), new(int64), new(error)
s.ChainID = wire.ReadString(r, n, err)
s.LastBlockHeight = wire.ReadVarint(r, n, err)
s.LastBlockHash = wire.ReadByteSlice(r, n, err)
s.LastBlockParts = wire.ReadBinary(types.PartSetHeader{}, r, n, err).(types.PartSetHeader)
s.LastBlockTime = wire.ReadTime(r, n, err)
s.BondedValidators = wire.ReadBinary(&types.ValidatorSet{}, r, n, err).(*types.ValidatorSet)
s.LastBondedValidators = wire.ReadBinary(&types.ValidatorSet{}, r, n, err).(*types.ValidatorSet)
s.UnbondingValidators = wire.ReadBinary(&types.ValidatorSet{}, r, n, err).(*types.ValidatorSet)
accountsHash := wire.ReadByteSlice(r, n, err)
s.accounts = merkle.NewIAVLTree(wire.BasicCodec, acm.AccountCodec, defaultAccountsCacheCapacity, db)
s.accounts.Load(accountsHash)
validatorInfosHash := wire.ReadByteSlice(r, n, err)
s.validatorInfos = merkle.NewIAVLTree(wire.BasicCodec, types.ValidatorInfoCodec, 0, db)
s.validatorInfos.Load(validatorInfosHash)
nameRegHash := wire.ReadByteSlice(r, n, err)
s.nameReg = merkle.NewIAVLTree(wire.BasicCodec, NameRegCodec, 0, db)
s.nameReg.Load(nameRegHash)
if *err != nil {
// DATA HAS BEEN CORRUPTED OR THE SPEC HAS CHANGED
Exit(Fmt("Data has been corrupted or its spec has changed: %v\n", *err))
}
// TODO: ensure that buf is completely read.
}
return s
}
func testProof(t *testing.T, proof *IAVLProof, keyBytes, valueBytes, rootHash []byte) {
// Proof must verify.
if !proof.Verify(keyBytes, valueBytes, rootHash) {
t.Errorf("Invalid proof. Verification failed.")
return
}
// Write/Read then verify.
proofBytes := wire.BinaryBytes(proof)
n, err := int64(0), error(nil)
proof2 := wire.ReadBinary(&IAVLProof{}, bytes.NewBuffer(proofBytes), &n, &err).(*IAVLProof)
if err != nil {
t.Errorf("Failed to read IAVLProof from bytes: %v", err)
return
}
if !proof2.Verify(keyBytes, valueBytes, rootHash) {
// t.Log(Fmt("%X\n%X\n", proofBytes, wire.BinaryBytes(proof2)))
t.Errorf("Invalid proof after write/read. Verification failed.")
return
}
// Random mutations must not verify
for i := 0; i < 5; i++ {
badProofBytes := MutateByteSlice(proofBytes)
n, err := int64(0), error(nil)
badProof := wire.ReadBinary(&IAVLProof{}, bytes.NewBuffer(badProofBytes), &n, &err).(*IAVLProof)
if err != nil {
continue // This is fine.
}
if badProof.Verify(keyBytes, valueBytes, rootHash) {
t.Errorf("Proof was still valid after a random mutation:\n%X\n%X", proofBytes, badProofBytes)
}
}
}
func TestBinaryDecode(t *testing.T) {
privAccount := GenPrivAccount()
pubKey := privAccount.PubKey
privKey := privAccount.PrivKey
msg := CRandBytes(128)
sig := privKey.Sign(msg)
t.Logf("msg: %X, sig: %X", msg, sig)
buf, n, err := new(bytes.Buffer), new(int64), new(error)
wire.WriteBinary(sig, buf, n, err)
if *err != nil {
t.Fatalf("Failed to write Signature: %v", err)
}
if len(buf.Bytes()) != ed25519.SignatureSize+1 {
// 1 byte TypeByte, 64 bytes signature bytes
t.Fatalf("Unexpected signature write size: %v", len(buf.Bytes()))
}
if buf.Bytes()[0] != SignatureTypeEd25519 {
t.Fatalf("Unexpected signature type byte")
}
sig2, ok := wire.ReadBinary(SignatureEd25519{}, buf, n, err).(SignatureEd25519)
if !ok || *err != nil {
t.Fatalf("Failed to read Signature: %v", err)
}
// Test the signature
if !pubKey.VerifyBytes(msg, sig2) {
t.Errorf("Account message signature verification failed")
}
}
func cliBroadcast(cmd *cobra.Command, args []string) {
if len(args) < 1 {
exit(fmt.Errorf("must specify transaction bytes to broadcast"))
}
txS := args[0]
// TODO: we should switch over a hex vs. json flag
txBytes, err := hex.DecodeString(txS)
ifExit(err)
var tx types.Tx
n := new(int64)
buf := bytes.NewBuffer(txBytes)
wire.ReadBinary(tx, buf, n, &err)
ifExit(err)
r, err := client.BroadcastTx(tx)
ifExit(err)
r2 := r.Receipt
s, err := formatOutput(args, 1, r2)
ifExit(err)
fmt.Println(s)
}
func AccountDecoder(r io.Reader, n *int64, err *error) interface{} {
return wire.ReadBinary(&Account{}, r, n, err)
}
func NameRegDecoder(r io.Reader, n *int64, err *error) interface{} {
return wire.ReadBinary(&types.NameRegEntry{}, r, n, err)
}
func ValidatorInfoDecoder(r io.Reader, n *int64, err *error) interface{} {
return wire.ReadBinary(&ValidatorInfo{}, r, n, err)
}
func (vc validatorCodec) Decode(r io.Reader, n *int64, err *error) interface{} {
return wire.ReadBinary(&Validator{}, r, n, err)
}