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064b0454e8
* Disallow by default RPC submission of out of date blocks (blocks which are out of virtual DAA window) * go fmt * Better condition test * Make allowNonDAABlocks an RPC field and not a command line flag * go fmt * one more go fmt
72 lines
2.6 KiB
Go
72 lines
2.6 KiB
Go
package rpchandlers
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import (
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"github.com/kaspanet/kaspad/app/appmessage"
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"github.com/kaspanet/kaspad/app/protocol/protocolerrors"
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"github.com/kaspanet/kaspad/app/rpc/rpccontext"
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"github.com/kaspanet/kaspad/domain/consensus/ruleerrors"
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"github.com/kaspanet/kaspad/domain/consensus/utils/consensushashing"
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"github.com/kaspanet/kaspad/infrastructure/network/netadapter/router"
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"github.com/pkg/errors"
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)
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// HandleSubmitBlock handles the respectively named RPC command
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func HandleSubmitBlock(context *rpccontext.Context, _ *router.Router, request appmessage.Message) (appmessage.Message, error) {
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submitBlockRequest := request.(*appmessage.SubmitBlockRequestMessage)
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isSynced, err := context.ProtocolManager.ShouldMine()
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if err != nil {
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return nil, err
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}
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if !context.Config.AllowSubmitBlockWhenNotSynced && !isSynced {
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return &appmessage.SubmitBlockResponseMessage{
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Error: appmessage.RPCErrorf("Block not submitted - node is not synced"),
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RejectReason: appmessage.RejectReasonIsInIBD,
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}, nil
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}
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domainBlock, err := appmessage.RPCBlockToDomainBlock(submitBlockRequest.Block)
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if err != nil {
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return &appmessage.SubmitBlockResponseMessage{
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Error: appmessage.RPCErrorf("Could not parse block: %s", err),
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RejectReason: appmessage.RejectReasonBlockInvalid,
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}, nil
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}
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if !submitBlockRequest.AllowNonDAABlocks {
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virtualDAAScore, err := context.Domain.Consensus().GetVirtualDAAScore()
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if err != nil {
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return nil, err
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}
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// A simple heuristic check which signals that the mined block is out of date
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// and should not be accepted unless user explicitly requests
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daaWindowSize := uint64(context.Config.NetParams().DifficultyAdjustmentWindowSize)
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if virtualDAAScore > daaWindowSize && domainBlock.Header.DAAScore() < virtualDAAScore-daaWindowSize {
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return &appmessage.SubmitBlockResponseMessage{
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Error: appmessage.RPCErrorf("Block rejected. Reason: block DAA score %d is too far "+
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"behind virtual's DAA score %d", domainBlock.Header.DAAScore(), virtualDAAScore),
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RejectReason: appmessage.RejectReasonBlockInvalid,
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}, nil
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}
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}
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err = context.ProtocolManager.AddBlock(domainBlock)
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if err != nil {
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isProtocolOrRuleError := errors.As(err, &ruleerrors.RuleError{}) || errors.As(err, &protocolerrors.ProtocolError{})
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if !isProtocolOrRuleError {
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return nil, err
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}
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return &appmessage.SubmitBlockResponseMessage{
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Error: appmessage.RPCErrorf("Block rejected. Reason: %s", err),
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RejectReason: appmessage.RejectReasonBlockInvalid,
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}, nil
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}
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log.Infof("Accepted block %s via submitBlock", consensushashing.BlockHash(domainBlock))
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response := appmessage.NewSubmitBlockResponseMessage()
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return response, nil
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}
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