Separate ws command handlers into separate funcs.
This commit is contained in:
Josh Rickmar
parent
53e1c2d6bd
commit
1f087adf15
1 changed files with 359 additions and 278 deletions
637
rpcserver.go
637
rpcserver.go
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@ -83,7 +83,7 @@ func (r *wsRequests) getOrCreateContexts(walletNotification chan []byte) *reques
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if !ok {
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rc = &requestContexts{
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// The key is a stringified addressHash.
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txRequests: make(map[string]interface{}),
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txRequests: make(map[string]interface{}),
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spentRequests: make(map[btcwire.OutPoint]interface{}),
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minedTxRequests: make(map[btcwire.ShaHash]bool),
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@ -305,6 +305,7 @@ func jsonRPCRead(w http.ResponseWriter, r *http.Request, s *rpcServer) {
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}
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type commandHandler func(*rpcServer, btcjson.Cmd, chan []byte) (interface{}, error)
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type wsCommandHandler func(*rpcServer, *btcjson.Message, chan []byte, chan *btcjson.Reply) error
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var handlers = map[string]commandHandler{
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"addnode": handleAddNode,
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@ -325,6 +326,14 @@ var handlers = map[string]commandHandler{
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"stop": handleStop,
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}
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var wsHandlers = map[string]wsCommandHandler{
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"getcurrentnet": handleGetCurrentNet,
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"getbestblock": handleGetBestBlock,
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"rescan": handleRescan,
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"notifynewtxs": handleNotifyNewTxs,
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"notifyspent": handleNotifySpent,
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}
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// handleDecodeRawTransaction handles decoderawtransaction commands.
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func handleAddNode(s *rpcServer, cmd btcjson.Cmd,
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walletNotification chan []byte) (interface{}, error) {
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@ -723,6 +732,325 @@ func jsonRead(body []byte, s *rpcServer, walletNotification chan []byte) (reply
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return reply, err
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}
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// handleGetCurrentNet implements the getcurrentnet command extension
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// for websocket connections.
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func handleGetCurrentNet(s *rpcServer, message *btcjson.Message,
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walletNotification chan []byte, replychan chan *btcjson.Reply) error {
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var net btcwire.BitcoinNet
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if cfg.TestNet3 {
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net = btcwire.TestNet3
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} else {
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net = btcwire.MainNet
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}
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rawReply := &btcjson.Reply{
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Result: float64(net),
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Id: &message.Id,
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}
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replychan <- rawReply
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return nil
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}
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// handleGetBestBlock implements the getbestblock command extension
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// for websocket connections.
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func handleGetBestBlock(s *rpcServer, message *btcjson.Message,
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walletNotification chan []byte, replychan chan *btcjson.Reply) error {
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// All other "get block" commands give either the height, the
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// hash, or both but require the block SHA. This gets both for
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// the best block.
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sha, height, err := s.server.db.NewestSha()
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if err != nil {
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log.Errorf("RPCS: Error getting newest block: %v", err)
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rawReply := &btcjson.Reply{
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Result: nil,
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Error: &btcjson.ErrBestBlockHash,
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Id: &message.Id,
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}
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replychan <- rawReply
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return err
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}
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rawReply := &btcjson.Reply{
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Result: map[string]interface{}{
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"hash": sha.String(),
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"height": height,
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},
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Id: &message.Id,
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}
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replychan <- rawReply
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return nil
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}
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// handleRescan implements the rescan command extension for websocket
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// connections.
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func handleRescan(s *rpcServer, message *btcjson.Message,
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walletNotification chan []byte, replychan chan *btcjson.Reply) error {
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minblock, maxblock := int64(0), btcdb.AllShas
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params, ok := message.Params.([]interface{})
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if !ok || len(params) < 2 {
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rawReply := &btcjson.Reply{
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Result: nil,
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Error: &btcjson.ErrInvalidParams,
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Id: &message.Id,
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}
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replychan <- rawReply
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return ErrBadParamsField
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}
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fminblock, ok := params[0].(float64)
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if !ok {
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rawReply := &btcjson.Reply{
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Result: nil,
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Error: &btcjson.ErrInvalidParams,
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Id: &message.Id,
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}
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replychan <- rawReply
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return ErrBadParamsField
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}
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minblock = int64(fminblock)
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iaddrs, ok := params[1].([]interface{})
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if !ok {
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rawReply := &btcjson.Reply{
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Result: nil,
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Error: &btcjson.ErrInvalidParams,
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Id: &message.Id,
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}
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replychan <- rawReply
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return ErrBadParamsField
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}
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// addrHashes holds a set of string-ified address hashes.
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addrHashes := make(map[string]bool, len(iaddrs))
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for i := range iaddrs {
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addr, ok := iaddrs[i].(string)
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if !ok {
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rawReply := &btcjson.Reply{
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Result: nil,
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Error: &btcjson.ErrInvalidParams,
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Id: &message.Id,
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}
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replychan <- rawReply
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return ErrBadParamsField
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}
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addrhash, _, err := btcutil.DecodeAddress(addr)
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if err != nil {
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rawReply := &btcjson.Reply{
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Result: nil,
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Error: &btcjson.ErrInvalidParams,
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Id: &message.Id,
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}
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replychan <- rawReply
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return ErrBadParamsField
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}
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addrHashes[string(addrhash)] = true
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}
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if len(params) > 2 {
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fmaxblock, ok := params[2].(float64)
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if !ok {
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rawReply := &btcjson.Reply{
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Result: nil,
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Error: &btcjson.ErrInvalidParams,
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Id: &message.Id,
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}
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replychan <- rawReply
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return ErrBadParamsField
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}
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maxblock = int64(fmaxblock)
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}
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log.Debugf("RPCS: Begining rescan")
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// FetchHeightRange may not return a complete list of block shas for
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// the given range, so fetch range as many times as necessary.
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for {
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blkshalist, err := s.server.db.FetchHeightRange(minblock, maxblock)
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if err != nil {
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return err
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}
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if len(blkshalist) == 0 {
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break
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}
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for i := range blkshalist {
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blk, err := s.server.db.FetchBlockBySha(&blkshalist[i])
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if err != nil {
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return err
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}
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txShaList, err := blk.TxShas()
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if err != nil {
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return err
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}
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txList := s.server.db.FetchTxByShaList(txShaList)
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for _, txReply := range txList {
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if txReply.Err != nil || txReply.Tx == nil {
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continue
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}
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for txOutIdx, txout := range txReply.Tx.TxOut {
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st, txaddrhash, err := btcscript.ScriptToAddrHash(txout.PkScript)
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if st != btcscript.ScriptAddr || err != nil {
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continue
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}
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txaddr, err := btcutil.EncodeAddress(txaddrhash, s.server.btcnet)
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if err != nil {
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log.Errorf("Error encoding address: %v", err)
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return err
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}
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if ok := addrHashes[string(txaddrhash)]; ok {
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reply := &btcjson.Reply{
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Result: struct {
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Sender string `json:"sender"`
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Receiver string `json:"receiver"`
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BlockHash string `json:"blockhash"`
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Height int64 `json:"height"`
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TxHash string `json:"txhash"`
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Index uint32 `json:"index"`
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Amount int64 `json:"amount"`
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PkScript string `json:"pkscript"`
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Spent bool `json:"spent"`
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}{
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Sender: "Unknown", // TODO(jrick)
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Receiver: txaddr,
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BlockHash: blkshalist[i].String(),
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Height: blk.Height(),
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TxHash: txReply.Sha.String(),
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Index: uint32(txOutIdx),
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Amount: txout.Value,
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PkScript: btcutil.Base58Encode(txout.PkScript),
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Spent: txReply.TxSpent[txOutIdx],
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},
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Error: nil,
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Id: &message.Id,
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}
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replychan <- reply
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}
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}
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}
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}
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if maxblock-minblock > int64(len(blkshalist)) {
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minblock += int64(len(blkshalist))
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} else {
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break
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}
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}
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rawReply := &btcjson.Reply{
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Result: nil,
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Error: nil,
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Id: &message.Id,
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}
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replychan <- rawReply
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log.Debug("RPCS: Finished rescan")
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return nil
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}
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// handleNotifyNewTxs implements the notifynewtxs command extension for
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// websocket connections.
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func handleNotifyNewTxs(s *rpcServer, message *btcjson.Message,
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walletNotification chan []byte, replychan chan *btcjson.Reply) error {
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params, ok := message.Params.([]interface{})
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if !ok || len(params) != 1 {
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rawReply := &btcjson.Reply{
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Result: nil,
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Error: &btcjson.ErrInvalidParams,
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Id: &message.Id,
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}
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replychan <- rawReply
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return ErrBadParamsField
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}
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addr, ok := params[0].(string)
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if !ok {
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rawReply := &btcjson.Reply{
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Result: nil,
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Error: &btcjson.ErrInvalidParams,
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Id: &message.Id,
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}
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replychan <- rawReply
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return ErrBadParamsField
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}
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addrhash, _, err := btcutil.DecodeAddress(addr)
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if err != nil {
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jsonError := btcjson.Error{
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Code: btcjson.ErrInvalidParams.Code,
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Message: "Cannot decode address",
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}
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rawReply := &btcjson.Reply{
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Result: nil,
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Error: &jsonError,
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Id: &message.Id,
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}
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replychan <- rawReply
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return ErrBadParamsField
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}
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s.ws.requests.AddTxRequest(walletNotification, string(addrhash), message.Id)
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rawReply := &btcjson.Reply{
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Result: nil,
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Error: nil,
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Id: &message.Id,
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}
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replychan <- rawReply
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return nil
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}
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// handleNotifySpent implements the notifyspent command extension for
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// websocket connections.
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func handleNotifySpent(s *rpcServer, message *btcjson.Message,
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walletNotification chan []byte, replychan chan *btcjson.Reply) error {
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params, ok := message.Params.([]interface{})
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if !ok || len(params) != 2 {
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rawReply := &btcjson.Reply{
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Result: nil,
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Error: &btcjson.ErrInvalidParams,
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Id: &message.Id,
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}
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replychan <- rawReply
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return ErrBadParamsField
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}
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hashBE, ok1 := params[0].(string)
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index, ok2 := params[1].(float64)
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if !ok1 || !ok2 {
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rawReply := &btcjson.Reply{
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Result: nil,
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Error: &btcjson.ErrInvalidParams,
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Id: &message.Id,
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}
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replychan <- rawReply
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return ErrBadParamsField
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}
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hash, err := btcwire.NewShaHashFromStr(hashBE)
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if err != nil {
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jsonError := btcjson.Error{
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Code: btcjson.ErrInvalidParams.Code,
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Message: "Hash string cannot be parsed.",
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}
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rawReply := &btcjson.Reply{
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Result: nil,
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Error: &jsonError,
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Id: &message.Id,
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}
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replychan <- rawReply
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return ErrBadParamsField
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}
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op := btcwire.NewOutPoint(hash, uint32(index))
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s.ws.requests.AddSpentRequest(walletNotification, op, message.Id)
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rawReply := &btcjson.Reply{
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Result: nil,
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Error: nil,
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Id: &message.Id,
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}
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replychan <- rawReply
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return nil
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}
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func jsonWSRead(walletNotification chan []byte, replychan chan *btcjson.Reply, body []byte, s *rpcServer) error {
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var message btcjson.Message
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err := json.Unmarshal(body, &message)
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@ -740,292 +1068,45 @@ func jsonWSRead(walletNotification chan []byte, replychan chan *btcjson.Reply, b
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}
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log.Tracef("RPCS: received: %v", message)
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var rawReply btcjson.Reply
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defer func() {
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replychan <- &rawReply
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close(replychan)
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}()
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// Deal with commands
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switch message.Method {
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case "getcurrentnet":
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var net btcwire.BitcoinNet
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if cfg.TestNet3 {
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net = btcwire.TestNet3
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} else {
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net = btcwire.MainNet
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}
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rawReply = btcjson.Reply{
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Result: float64(net),
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Id: &message.Id,
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}
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case "getbestblock":
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// All other "get block" commands give either the height, the
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// hash, or both but require the block SHA. This gets both for
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// the best block.
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sha, height, err := s.server.db.NewestSha()
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if err != nil {
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log.Errorf("RPCS: Error getting newest block: %v", err)
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rawReply = btcjson.Reply{
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Result: nil,
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Error: &btcjson.ErrBestBlockHash,
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Id: &message.Id,
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}
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return err
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}
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rawReply = btcjson.Reply{
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Result: map[string]interface{}{
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"hash": sha.String(),
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"height": height,
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},
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Id: &message.Id,
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}
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case "rescan":
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minblock, maxblock := int64(0), btcdb.AllShas
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params, ok := message.Params.([]interface{})
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if !ok || len(params) < 2 {
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rawReply = btcjson.Reply{
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Result: nil,
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Error: &btcjson.ErrInvalidParams,
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Id: &message.Id,
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}
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return ErrBadParamsField
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}
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fminblock, ok := params[0].(float64)
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if !ok {
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rawReply = btcjson.Reply{
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Result: nil,
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Error: &btcjson.ErrInvalidParams,
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Id: &message.Id,
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}
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return ErrBadParamsField
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}
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minblock = int64(fminblock)
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iaddrs, ok := params[1].([]interface{})
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if !ok {
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rawReply = btcjson.Reply{
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Result: nil,
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Error: &btcjson.ErrInvalidParams,
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Id: &message.Id,
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}
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return ErrBadParamsField
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}
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// addrHashes holds a set of string-ified address hashes.
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addrHashes := make(map[string]bool, len(iaddrs))
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for i := range iaddrs {
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addr, ok := iaddrs[i].(string)
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if !ok {
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rawReply = btcjson.Reply{
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Result: nil,
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Error: &btcjson.ErrInvalidParams,
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Id: &message.Id,
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}
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return ErrBadParamsField
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}
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addrhash, _, err := btcutil.DecodeAddress(addr)
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if err != nil {
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rawReply = btcjson.Reply{
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Result: nil,
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Error: &btcjson.ErrInvalidParams,
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Id: &message.Id,
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}
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return ErrBadParamsField
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}
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addrHashes[string(addrhash)] = true
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}
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if len(params) > 2 {
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fmaxblock, ok := params[2].(float64)
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if !ok {
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rawReply = btcjson.Reply{
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Result: nil,
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Error: &btcjson.ErrInvalidParams,
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Id: &message.Id,
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}
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return ErrBadParamsField
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}
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maxblock = int64(fmaxblock)
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}
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log.Debugf("RPCS: Begining rescan")
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// FetchHeightRange may not return a complete list of block shas for
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// the given range, so fetch range as many times as necessary.
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for {
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blkshalist, err := s.server.db.FetchHeightRange(minblock, maxblock)
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if err != nil {
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return err
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}
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if len(blkshalist) == 0 {
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break
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}
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for i := range blkshalist {
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blk, err := s.server.db.FetchBlockBySha(&blkshalist[i])
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if err != nil {
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return err
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}
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txShaList, err := blk.TxShas()
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if err != nil {
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return err
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}
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txList := s.server.db.FetchTxByShaList(txShaList)
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for _, txReply := range txList {
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if txReply.Err != nil || txReply.Tx == nil {
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continue
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}
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for txOutIdx, txout := range txReply.Tx.TxOut {
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st, txaddrhash, err := btcscript.ScriptToAddrHash(txout.PkScript)
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||||
if st != btcscript.ScriptAddr || err != nil {
|
||||
continue
|
||||
}
|
||||
txaddr, err := btcutil.EncodeAddress(txaddrhash, s.server.btcnet)
|
||||
if err != nil {
|
||||
log.Errorf("Error encoding address: %v", err)
|
||||
return err
|
||||
}
|
||||
if ok := addrHashes[string(txaddrhash)]; ok {
|
||||
reply := btcjson.Reply{
|
||||
Result: struct {
|
||||
Sender string `json:"sender"`
|
||||
Receiver string `json:"receiver"`
|
||||
BlockHash string `json:"blockhash"`
|
||||
Height int64 `json:"height"`
|
||||
TxHash string `json:"txhash"`
|
||||
Index uint32 `json:"index"`
|
||||
Amount int64 `json:"amount"`
|
||||
PkScript string `json:"pkscript"`
|
||||
Spent bool `json:"spent"`
|
||||
}{
|
||||
Sender: "Unknown", // TODO(jrick)
|
||||
Receiver: txaddr,
|
||||
BlockHash: blkshalist[i].String(),
|
||||
Height: blk.Height(),
|
||||
TxHash: txReply.Sha.String(),
|
||||
Index: uint32(txOutIdx),
|
||||
Amount: txout.Value,
|
||||
PkScript: btcutil.Base58Encode(txout.PkScript),
|
||||
Spent: txReply.TxSpent[txOutIdx],
|
||||
},
|
||||
Error: nil,
|
||||
Id: &message.Id,
|
||||
}
|
||||
replychan <- &reply
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if maxblock-minblock > int64(len(blkshalist)) {
|
||||
minblock += int64(len(blkshalist))
|
||||
} else {
|
||||
break
|
||||
}
|
||||
}
|
||||
|
||||
rawReply = btcjson.Reply{
|
||||
Result: nil,
|
||||
Error: nil,
|
||||
Id: &message.Id,
|
||||
}
|
||||
|
||||
log.Debug("RPCS: Finished rescan")
|
||||
|
||||
case "notifynewtxs":
|
||||
params, ok := message.Params.([]interface{})
|
||||
if !ok || len(params) != 1 {
|
||||
rawReply = btcjson.Reply{
|
||||
Result: nil,
|
||||
Error: &btcjson.ErrInvalidParams,
|
||||
Id: &message.Id,
|
||||
}
|
||||
return ErrBadParamsField
|
||||
}
|
||||
addr, ok := params[0].(string)
|
||||
if !ok {
|
||||
rawReply = btcjson.Reply{
|
||||
Result: nil,
|
||||
Error: &btcjson.ErrInvalidParams,
|
||||
Id: &message.Id,
|
||||
}
|
||||
return ErrBadParamsField
|
||||
}
|
||||
addrhash, _, err := btcutil.DecodeAddress(addr)
|
||||
if err != nil {
|
||||
jsonError := btcjson.Error{
|
||||
Code: btcjson.ErrInvalidParams.Code,
|
||||
Message: "Cannot decode address",
|
||||
}
|
||||
rawReply = btcjson.Reply{
|
||||
Result: nil,
|
||||
Error: &jsonError,
|
||||
Id: &message.Id,
|
||||
}
|
||||
return ErrBadParamsField
|
||||
}
|
||||
s.ws.requests.AddTxRequest(walletNotification, string(addrhash), message.Id)
|
||||
|
||||
rawReply = btcjson.Reply{
|
||||
Result: nil,
|
||||
Error: nil,
|
||||
Id: &message.Id,
|
||||
}
|
||||
|
||||
case "notifyspent":
|
||||
params, ok := message.Params.([]interface{})
|
||||
if !ok || len(params) != 2 {
|
||||
rawReply = btcjson.Reply{
|
||||
Result: nil,
|
||||
Error: &btcjson.ErrInvalidParams,
|
||||
Id: &message.Id,
|
||||
}
|
||||
return ErrBadParamsField
|
||||
}
|
||||
hashBE, ok1 := params[0].(string)
|
||||
index, ok2 := params[1].(float64)
|
||||
if !ok1 || !ok2 {
|
||||
rawReply = btcjson.Reply{
|
||||
Result: nil,
|
||||
Error: &btcjson.ErrInvalidParams,
|
||||
Id: &message.Id,
|
||||
}
|
||||
return ErrBadParamsField
|
||||
}
|
||||
hash, err := btcwire.NewShaHashFromStr(hashBE)
|
||||
if err != nil {
|
||||
jsonError := btcjson.Error{
|
||||
Code: btcjson.ErrInvalidParams.Code,
|
||||
Message: "Hash string cannot be parsed.",
|
||||
}
|
||||
rawReply = btcjson.Reply{
|
||||
Result: nil,
|
||||
Error: &jsonError,
|
||||
Id: &message.Id,
|
||||
}
|
||||
return ErrBadParamsField
|
||||
}
|
||||
op := btcwire.NewOutPoint(hash, uint32(index))
|
||||
s.ws.requests.AddSpentRequest(walletNotification, op, message.Id)
|
||||
|
||||
rawReply = btcjson.Reply{
|
||||
Result: nil,
|
||||
Error: nil,
|
||||
Id: &message.Id,
|
||||
}
|
||||
|
||||
default:
|
||||
rawReply = btcjson.Reply{
|
||||
wsHandler, ok := wsHandlers[message.Method]
|
||||
if !ok {
|
||||
rawReply := &btcjson.Reply{
|
||||
Result: nil,
|
||||
Error: &btcjson.ErrMethodNotFound,
|
||||
Id: &message.Id,
|
||||
}
|
||||
replychan <- rawReply
|
||||
return btcjson.ErrMethodNotFound
|
||||
}
|
||||
return btcjson.ErrMethodNotFound
|
||||
|
||||
if err := wsHandler(s, &message, walletNotification, replychan); err != nil {
|
||||
if jsonErr, ok := err.(btcjson.Error); ok {
|
||||
rawReply := &btcjson.Reply{
|
||||
Error: &jsonErr,
|
||||
Id: &message.Id,
|
||||
}
|
||||
replychan <- rawReply
|
||||
err = errors.New(jsonErr.Message)
|
||||
} else {
|
||||
// In the case where we did not have a btcjson
|
||||
// error to begin with, make a new one to send,
|
||||
// but this really should not happen.
|
||||
rawJSONError := btcjson.Error{
|
||||
Code: btcjson.ErrInternal.Code,
|
||||
Message: err.Error(),
|
||||
}
|
||||
rawReply := &btcjson.Reply{
|
||||
Error: &rawJSONError,
|
||||
Id: &message.Id,
|
||||
}
|
||||
replychan <- rawReply
|
||||
}
|
||||
}
|
||||
return err
|
||||
}
|
||||
|
||||
// getDifficultyRatio returns the proof-of-work difficulty as a multiple of the
|
||||
|
|
|
|||
Loading…
Reference in a new issue