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https://github.com/kaspanet/kaspad.git
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d14809694f
* [NOD-1223] Delete unused files/packages. * [NOD-1223] Move signal and limits to the os package. * [NOD-1223] Put database and dbaccess into the db package. * [NOD-1223] Fold the logs package into the logger package. * [NOD-1223] Rename domainmessage to appmessage. * [NOD-1223] Rename to/from DomainMessage to AppMessage. * [NOD-1223] Move appmessage to the app packge. * [NOD-1223] Move protocol to the app packge. * [NOD-1223] Move the network package to the infrastructure packge. * [NOD-1223] Rename cmd to executables. * [NOD-1223] Fix go.doc in the logger package.
52 lines
1.3 KiB
Go
52 lines
1.3 KiB
Go
package rpc
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import (
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"bytes"
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"encoding/hex"
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"github.com/kaspanet/kaspad/infrastructure/network/rpc/model"
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"github.com/kaspanet/kaspad/util/daghash"
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)
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const getHeadersMaxHeaders = 2000
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// handleGetHeaders implements the getHeaders command.
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func handleGetHeaders(s *Server, cmd interface{}, closeChan <-chan struct{}) (interface{}, error) {
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c := cmd.(*model.GetHeadersCmd)
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lowHash := &daghash.ZeroHash
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if c.LowHash != "" {
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err := daghash.Decode(lowHash, c.LowHash)
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if err != nil {
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return nil, rpcDecodeHexError(c.HighHash)
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}
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}
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highHash := &daghash.ZeroHash
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if c.HighHash != "" {
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err := daghash.Decode(highHash, c.HighHash)
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if err != nil {
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return nil, rpcDecodeHexError(c.HighHash)
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}
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}
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headers, err := s.dag.AntiPastHeadersBetween(lowHash, highHash, getHeadersMaxHeaders)
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if err != nil {
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return nil, &model.RPCError{
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Code: model.ErrRPCMisc,
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Message: err.Error(),
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}
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}
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// Return the serialized block headers as hex-encoded strings.
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hexBlockHeaders := make([]string, len(headers))
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var buf bytes.Buffer
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for i, h := range headers {
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err := h.Serialize(&buf)
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if err != nil {
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return nil, internalRPCError(err.Error(),
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"Failed to serialize block header")
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}
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hexBlockHeaders[i] = hex.EncodeToString(buf.Bytes())
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buf.Reset()
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}
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return hexBlockHeaders, nil
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}
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