func (e *ECBlockHeader) UnmarshalBinaryData(data []byte) (newData []byte, err error) {
defer func() {
if r := recover(); r != nil {
err = fmt.Errorf("Error unmarshalling: %v", r)
}
}()
buf := primitives.NewBuffer(data)
hash := make([]byte, 32)
if _, err = buf.Read(hash); err != nil {
return
} else {
if fmt.Sprintf("%x", hash) != "000000000000000000000000000000000000000000000000000000000000000c" {
err = fmt.Errorf("Invalid ChainID - %x", hash)
return
}
}
if _, err = buf.Read(hash); err != nil {
return
} else {
e.BodyHash.SetBytes(hash)
}
if _, err = buf.Read(hash); err != nil {
return
} else {
e.PrevHeaderHash.SetBytes(hash)
}
if _, err = buf.Read(hash); err != nil {
return
} else {
e.PrevFullHash.SetBytes(hash)
}
if err = binary.Read(buf, binary.BigEndian, &e.DBHeight); err != nil {
return
}
// read the Header Expansion Area
hesize, tmp := primitives.DecodeVarInt(buf.DeepCopyBytes())
buf = primitives.NewBuffer(tmp)
e.HeaderExpansionArea = make([]byte, hesize)
if _, err = buf.Read(e.HeaderExpansionArea); err != nil {
return
}
if err = binary.Read(buf, binary.BigEndian, &e.ObjectCount); err != nil {
return
}
if err = binary.Read(buf, binary.BigEndian, &e.BodySize); err != nil {
return
}
newData = buf.DeepCopyBytes()
return
}
func (e *ECBlock) unmarshalHeaderBinaryData(data []byte) (newData []byte, err error) {
buf := primitives.NewBuffer(data)
hash := make([]byte, 32)
if _, err = buf.Read(hash); err != nil {
return
} else {
e.Header.GetECChainID().SetBytes(hash)
}
if _, err = buf.Read(hash); err != nil {
return
} else {
e.Header.GetBodyHash().SetBytes(hash)
}
if _, err = buf.Read(hash); err != nil {
return
} else {
e.Header.GetPrevHeaderHash().SetBytes(hash)
}
if _, err = buf.Read(hash); err != nil {
return
} else {
e.Header.GetPrevFullHash().SetBytes(hash)
}
h := e.Header.GetDBHeight()
if err = binary.Read(buf, binary.BigEndian, &h); err != nil {
return
}
// read the Header Expansion Area
hesize, tmp := primitives.DecodeVarInt(buf.DeepCopyBytes())
buf = primitives.NewBuffer(tmp)
e.Header.SetHeaderExpansionArea(make([]byte, hesize))
if _, err = buf.Read(e.Header.GetHeaderExpansionArea()); err != nil {
return
}
oc := e.Header.GetObjectCount()
if err = binary.Read(buf, binary.BigEndian, &oc); err != nil {
return
}
sz := e.Header.GetBodySize()
if err = binary.Read(buf, binary.BigEndian, &sz); err != nil {
return
}
newData = buf.DeepCopyBytes()
return
}
func (b *IncreaseBalance) UnmarshalBinaryData(data []byte) (newData []byte, err error) {
defer func() {
if r := recover(); r != nil {
err = fmt.Errorf("Error unmarshalling IncreaseBalance: %v", r)
}
}()
buf := primitives.NewBuffer(data)
hash := make([]byte, 32)
_, err = buf.Read(hash)
if err != nil {
return
}
b.ECPubKey = new(primitives.ByteSlice32)
copy(b.ECPubKey[:], hash)
_, err = buf.Read(hash)
if err != nil {
return
}
if b.TXID == nil {
b.TXID = primitives.NewZeroHash()
}
b.TXID.SetBytes(hash)
tmp := make([]byte, 0)
b.Index, tmp = primitives.DecodeVarInt(buf.DeepCopyBytes())
b.NumEC, tmp = primitives.DecodeVarInt(tmp)
newData = tmp
return
}
func (e *DirBlockInfo) UnmarshalBinaryData(data []byte) (newData []byte, err error) {
dec := gob.NewDecoder(primitives.NewBuffer(data))
dbic := newDirBlockInfoCopy()
err = dec.Decode(dbic)
if err != nil {
return nil, err
}
e.parseDirBlockInfoCopy(dbic)
return nil, nil
}
func (m *MinuteNumber) UnmarshalBinaryData(data []byte) (newData []byte, err error) {
defer func() {
if r := recover(); r != nil {
err = fmt.Errorf("Error unmarshalling MinuteNumber: %v", r)
}
}()
buf := primitives.NewBuffer(data)
var c byte
if c, err = buf.ReadByte(); err != nil {
return
} else {
m.Number = c
}
newData = buf.DeepCopyBytes()
return
}
// unmarshalHeaderBinary builds the Entry Block Header from the serialized binary.
func (e *EBlockHeader) UnmarshalBinaryData(data []byte) (newData []byte, err error) {
buf := primitives.NewBuffer(data)
hash := make([]byte, 32)
newData = data
if _, err = buf.Read(hash); err != nil {
return
} else {
e.ChainID.SetBytes(hash)
}
if _, err = buf.Read(hash); err != nil {
return
} else {
e.BodyMR.SetBytes(hash)
}
if _, err = buf.Read(hash); err != nil {
return
} else {
e.PrevKeyMR.SetBytes(hash)
}
if _, err = buf.Read(hash); err != nil {
return
} else {
e.PrevFullHash.SetBytes(hash)
}
if err = binary.Read(buf, binary.BigEndian, &e.EBSequence); err != nil {
return
}
if err = binary.Read(buf, binary.BigEndian, &e.DBHeight); err != nil {
return
}
if err = binary.Read(buf, binary.BigEndian, &e.EntryCount); err != nil {
return
}
newData = buf.DeepCopyBytes()
return
}
// unmarshalBodyBinary builds the Entry Block Body from the serialized binary.
func (e *EBlock) unmarshalBodyBinaryData(data []byte) (newData []byte, err error) {
defer func() {
if r := recover(); r != nil {
err = fmt.Errorf("Error unmarshalling: %v", r)
}
}()
buf := primitives.NewBuffer(data)
hash := make([]byte, 32)
for i := uint32(0); i < e.Header.GetEntryCount(); i++ {
if _, err := buf.Read(hash); err != nil {
return nil, err
}
h := primitives.NewZeroHash()
h.SetBytes(hash)
e.Body.EBEntries = append(e.Body.EBEntries, h)
}
newData = buf.DeepCopyBytes()
return
}
//Construct the entry and submit it to the server
func (a *Anchor) submitEntryToAnchorChain(aRecord *AnchorRecord) error {
jsonARecord, err := json.Marshal(aRecord)
//anchorLog.Debug("submitEntryToAnchorChain - jsonARecord: ", string(jsonARecord))
if err != nil {
return err
}
bufARecord := new(primitives.Buffer)
bufARecord.Write(jsonARecord)
aRecordSig := a.serverPrivKey.Sign(jsonARecord)
//Create a new entry
entry := entryBlock.NewEntry()
entry.ChainID = a.anchorChainID
anchorLog.Debug("anchorChainID: ", a.anchorChainID)
// instead of append signature at the end of anchor record
// it can be added as the first entry.ExtIDs[0]
entry.ExtIDs = append(entry.ExtIDs, primitives.ByteSlice{Bytes: aRecordSig.Bytes()})
entry.Content = primitives.ByteSlice{Bytes: bufARecord.DeepCopyBytes()}
//anchorLog.Debug("entry: ", spew.Sdump(entry))
buf := new(primitives.Buffer)
// 1 byte version
buf.Write([]byte{0})
// 6 byte milliTimestamp (truncated unix time)
buf.Write(milliTime())
// 32 byte Entry Hash
buf.Write(entry.GetHash().Bytes())
// 1 byte number of entry credits to pay
binaryEntry, err := entry.MarshalBinary()
if err != nil {
return err
}
anchorLog.Debug("jsonARecord binary entry: ", hex.EncodeToString(binaryEntry))
if c, err := util.EntryCost(binaryEntry); err == nil {
buf.WriteByte(byte(c))
} else {
return err
}
tmp := buf.DeepCopyBytes()
sig := a.serverECKey.Sign(tmp).(*primitives.Signature)
buf = primitives.NewBuffer(tmp)
buf.Write(a.serverECKey.Pub[:])
buf.Write(sig.Sig[:])
commit := entryCreditBlock.NewCommitEntry()
err = commit.UnmarshalBinary(buf.DeepCopyBytes())
if err != nil {
return err
}
// create a CommitEntry msg and send it to the local inmsgQ
cm := messages.NewCommitEntryMsg()
cm.CommitEntry = commit
a.state.InMsgQueue() <- cm
// create a RevealEntry msg and send it to the local inmsgQ
rm := messages.NewRevealEntryMsg()
rm.Entry = entry
a.state.InMsgQueue() <- rm
return nil
}
func (e *ECBlock) unmarshalBodyBinaryData(data []byte) ([]byte, error) {
buf := primitives.NewBuffer(data)
var err error
defer func() {
if r := recover(); r != nil {
err = fmt.Errorf("Error unmarshalling: %v", r)
}
}()
for i := uint64(0); i < e.Header.GetObjectCount(); i++ {
var id byte
id, err = buf.ReadByte()
if err != nil {
return nil, err
}
switch id {
case ECIDServerIndexNumber:
s := NewServerIndexNumber()
if buf.Len() < ServerIndexNumberSize {
err = io.EOF
return nil, err
}
_, err = s.UnmarshalBinaryData(buf.Next(ServerIndexNumberSize))
if err != nil {
return nil, err
}
e.Body.SetEntries(append(e.Body.GetEntries(), s))
case ECIDMinuteNumber:
m := NewMinuteNumber(0)
if buf.Len() < MinuteNumberSize {
err = io.EOF
return nil, err
}
_, err = m.UnmarshalBinaryData(buf.Next(MinuteNumberSize))
if err != nil {
return nil, err
}
e.Body.SetEntries(append(e.Body.GetEntries(), m))
case ECIDChainCommit:
if buf.Len() < CommitChainSize {
err = io.EOF
return nil, err
}
c := NewCommitChain()
_, err = c.UnmarshalBinaryData(buf.Next(CommitChainSize))
if err != nil {
return nil, err
}
e.Body.SetEntries(append(e.Body.GetEntries(), c))
case ECIDEntryCommit:
if buf.Len() < CommitEntrySize {
err = io.EOF
return nil, err
}
c := NewCommitEntry()
_, err = c.UnmarshalBinaryData(buf.Next(CommitEntrySize))
if err != nil {
return nil, err
}
e.Body.SetEntries(append(e.Body.GetEntries(), c))
case ECIDBalanceIncrease:
c := NewIncreaseBalance()
tmp, err := c.UnmarshalBinaryData(buf.DeepCopyBytes())
if err != nil {
return nil, err
}
e.Body.SetEntries(append(e.Body.GetEntries(), c))
buf = primitives.NewBuffer(tmp)
default:
err = fmt.Errorf("Unsupported ECID: %x\n", id)
return nil, err
}
}
return buf.DeepCopyBytes(), nil
}
func (c *CommitChain) UnmarshalBinaryData(data []byte) (newData []byte, err error) {
defer func() {
if r := recover(); r != nil {
err = fmt.Errorf("Error unmarshalling CommitChain: %v", r)
}
}()
buf := primitives.NewBuffer(data)
hash := make([]byte, 32)
// 1 byte Version
var b byte
var p []byte
if b, err = buf.ReadByte(); err != nil {
return
} else {
c.Version = uint8(b)
}
if buf.Len() < 6 {
err = io.EOF
return
}
// 6 byte MilliTime
if p = buf.Next(6); p == nil {
err = fmt.Errorf("Could not read MilliTime")
return
} else {
c.MilliTime = new(primitives.ByteSlice6)
err = c.MilliTime.UnmarshalBinary(p)
if err != nil {
return
}
}
// 32 byte ChainIDHash
if _, err = buf.Read(hash); err != nil {
return
}
c.ChainIDHash = primitives.NewHash(hash)
// 32 byte Weld
if _, err = buf.Read(hash); err != nil {
return
}
c.Weld = primitives.NewHash(hash)
// 32 byte Entry Hash
if _, err = buf.Read(hash); err != nil {
return
}
c.EntryHash = primitives.NewHash(hash)
// 1 byte number of Entry Credits
if b, err = buf.ReadByte(); err != nil {
return
} else {
c.Credits = uint8(b)
}
if buf.Len() < 32 {
err = io.EOF
return
}
// 32 byte Public Key
if p := buf.Next(32); p == nil {
err = fmt.Errorf("Could not read ECPubKey")
return
} else {
c.ECPubKey = new(primitives.ByteSlice32)
err = c.ECPubKey.UnmarshalBinary(p)
if err != nil {
return
}
}
if buf.Len() < 64 {
err = io.EOF
return
}
// 64 byte Signature
if p := buf.Next(64); p == nil {
err = fmt.Errorf("Could not read Sig")
return
} else {
c.Sig = new(primitives.ByteSlice64)
err = c.Sig.UnmarshalBinary(p)
if err != nil {
return
}
}
err = c.ValidateSignatures()
if err != nil {
return
}
newData = buf.DeepCopyBytes()
return
}
func (e *Entry) UnmarshalBinaryData(data []byte) (newData []byte, err error) {
defer func() {
if r := recover(); r != nil {
err = fmt.Errorf("Error unmarshalling: %v", r)
}
}()
buf := primitives.NewBuffer(data)
hash := make([]byte, 32)
// 1 byte Version
b, err := buf.ReadByte()
if err != nil {
return nil, err
} else {
e.Version = b
}
// 32 byte ChainID
e.ChainID = primitives.NewZeroHash()
if _, err = buf.Read(hash); err != nil {
return nil, err
} else if err = e.ChainID.SetBytes(hash); err != nil {
return nil, err
}
// 2 byte size of ExtIDs
var extSize uint16
if err = binary.Read(buf, binary.BigEndian, &extSize); err != nil {
return nil, err
}
// ExtIDs
for i := int16(extSize); i > 0; {
var xsize int16
binary.Read(buf, binary.BigEndian, &xsize)
i -= 2
if i < 0 {
err = fmt.Errorf("Error parsing external IDs")
return nil, err
}
x := make([]byte, xsize)
var n int
if n, err = buf.Read(x); err != nil {
return nil, err
} else {
if c := cap(x); n != c {
err = fmt.Errorf("Could not read ExtID: Read %d bytes of %d\n", n, c)
return nil, err
}
ex := primitives.ByteSlice{}
err = ex.UnmarshalBinary(x)
if err != nil {
return nil, err
}
e.ExtIDs = append(e.ExtIDs, ex)
i -= int16(n)
if i < 0 {
err = fmt.Errorf("Error parsing external IDs")
return nil, err
}
}
}
// Content
err = e.Content.UnmarshalBinary(buf.DeepCopyBytes())
if err != nil {
return nil, err
}
return
}