func (app *HtmlApplication) NewBlock(block *ethchain.Block) {
b := ðpipe.JSBlock{Number: int(block.BlockInfo().Number), Hash: ethutil.Bytes2Hex(block.Hash())}
app.webView.Call("onNewBlockCb", b)
}
// Events
func (app *QmlApplication) NewBlock(block *ethchain.Block) {
pblock := ðpub.PBlock{Number: int(block.BlockInfo().Number), Hash: ethutil.Bytes2Hex(block.Hash())}
app.win.Call("onNewBlockCb", pblock)
}
// Inbound handler. Inbound messages are received here and passed to the appropriate methods
func (p *Peer) HandleInbound() {
for atomic.LoadInt32(&p.disconnect) == 0 {
// HMM?
time.Sleep(500 * time.Millisecond)
// Wait for a message from the peer
msgs, err := ethwire.ReadMessages(p.conn)
if err != nil {
ethutil.Config.Log.Debugln(err)
}
for _, msg := range msgs {
switch msg.Type {
case ethwire.MsgHandshakeTy:
// Version message
p.handleHandshake(msg)
if p.caps.IsCap(CapPeerDiscTy) {
p.QueueMessage(ethwire.NewMessage(ethwire.MsgGetPeersTy, ""))
}
case ethwire.MsgDiscTy:
p.Stop()
ethutil.Config.Log.Infoln("Disconnect peer:", DiscReason(msg.Data.Get(0).Uint()))
case ethwire.MsgPingTy:
// Respond back with pong
p.QueueMessage(ethwire.NewMessage(ethwire.MsgPongTy, ""))
case ethwire.MsgPongTy:
// If we received a pong back from a peer we set the
// last pong so the peer handler knows this peer is still
// active.
p.lastPong = time.Now().Unix()
case ethwire.MsgBlockTy:
// Get all blocks and process them
var block, lastBlock *ethchain.Block
var err error
for i := msg.Data.Len() - 1; i >= 0; i-- {
block = ethchain.NewBlockFromRlpValue(msg.Data.Get(i))
err = p.ethereum.BlockManager.ProcessBlock(block)
if err != nil {
if ethutil.Config.Debug {
ethutil.Config.Log.Infof("[PEER] Block %x failed\n", block.Hash())
ethutil.Config.Log.Infof("[PEER] %v\n", err)
}
break
} else {
lastBlock = block
}
}
if err != nil {
// If the parent is unknown try to catch up with this peer
if ethchain.IsParentErr(err) {
ethutil.Config.Log.Infoln("Attempting to catch up")
p.catchingUp = false
p.CatchupWithPeer()
} else if ethchain.IsValidationErr(err) {
// TODO
}
} else {
// XXX Do we want to catch up if there were errors?
// If we're catching up, try to catch up further.
if p.catchingUp && msg.Data.Len() > 1 {
if ethutil.Config.Debug && lastBlock != nil {
blockInfo := lastBlock.BlockInfo()
ethutil.Config.Log.Infof("Synced to block height #%d %x %x\n", blockInfo.Number, lastBlock.Hash(), blockInfo.Hash)
}
p.catchingUp = false
p.CatchupWithPeer()
}
}
case ethwire.MsgTxTy:
// If the message was a transaction queue the transaction
// in the TxPool where it will undergo validation and
// processing when a new block is found
for i := 0; i < msg.Data.Len(); i++ {
p.ethereum.TxPool.QueueTransaction(ethchain.NewTransactionFromData(msg.Data.Get(i).Encode()))
}
case ethwire.MsgGetPeersTy:
// Flag this peer as a 'requested of new peers' this to
// prevent malicious peers being forced.
p.requestedPeerList = true
// Peer asked for list of connected peers
p.pushPeers()
case ethwire.MsgPeersTy:
// Received a list of peers (probably because MsgGetPeersTy was send)
// Only act on message if we actually requested for a peers list
//if p.requestedPeerList {
data := msg.Data
// Create new list of possible peers for the ethereum to process
peers := make([]string, data.Len())
// Parse each possible peer
for i := 0; i < data.Len(); i++ {
value := data.Get(i)
peers[i] = unpackAddr(value.Get(0), value.Get(1).Uint())
}
// Connect to the list of peers
p.ethereum.ProcessPeerList(peers)
// Mark unrequested again
p.requestedPeerList = false
//}
case ethwire.MsgGetChainTy:
var parent *ethchain.Block
// Length minus one since the very last element in the array is a count
l := msg.Data.Len() - 1
// Ignore empty get chains
if l == 0 {
break
}
// Amount of parents in the canonical chain
//amountOfBlocks := msg.Data.Get(l).AsUint()
amountOfBlocks := uint64(100)
// Check each SHA block hash from the message and determine whether
// the SHA is in the database
for i := 0; i < l; i++ {
if data := msg.Data.Get(i).Bytes(); p.ethereum.BlockManager.BlockChain().HasBlock(data) {
parent = p.ethereum.BlockManager.BlockChain().GetBlock(data)
break
}
}
// If a parent is found send back a reply
if parent != nil {
chain := p.ethereum.BlockManager.BlockChain().GetChainFromHash(parent.Hash(), amountOfBlocks)
p.QueueMessage(ethwire.NewMessage(ethwire.MsgBlockTy, chain))
} else {
// If no blocks are found we send back a reply with msg not in chain
// and the last hash from get chain
lastHash := msg.Data.Get(l - 1)
//log.Printf("Sending not in chain with hash %x\n", lastHash.AsRaw())
p.QueueMessage(ethwire.NewMessage(ethwire.MsgNotInChainTy, []interface{}{lastHash.Raw()}))
}
case ethwire.MsgNotInChainTy:
ethutil.Config.Log.Infof("Not in chain %x\n", msg.Data)
// TODO
// Unofficial but fun nonetheless
case ethwire.MsgTalkTy:
ethutil.Config.Log.Infoln("%v says: %s\n", p.conn.RemoteAddr(), msg.Data.Str())
}
}
}
p.Stop()
}
// Creates a new QML Block from a chain block
func NewBlockFromBlock(block *ethchain.Block) *Block {
info := block.BlockInfo()
hash := hex.EncodeToString(block.Hash())
return &Block{Number: int(info.Number), Hash: hash}
}