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check evidence hasn't already been stored (#4632)

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Add Has function, create better handling of errors when adding evidence, usage of error types.

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
This commit is contained in:
Callum Waters
2020-04-07 10:42:14 +02:00
committed by GitHub
parent 499f9ed153
commit 88d7007c3c
8 changed files with 81 additions and 30 deletions
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7
rpc/core/evidence.go
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@@ -1,6 +1,7 @@
package core
import (
"github.com/tendermint/tendermint/evidence"
ctypes "github.com/tendermint/tendermint/rpc/core/types"
rpctypes "github.com/tendermint/tendermint/rpc/lib/types"
"github.com/tendermint/tendermint/types"
@@ -10,8 +11,8 @@ import (
// More: https://docs.tendermint.com/master/rpc/#/Info/broadcast_evidence
func BroadcastEvidence(ctx *rpctypes.Context, ev types.Evidence) (*ctypes.ResultBroadcastEvidence, error) {
err := evidencePool.AddEvidence(ev)
if err != nil {
return nil, err
if _, ok := err.(evidence.ErrEvidenceAlreadyStored); err == nil || ok {
return &ctypes.ResultBroadcastEvidence{Hash: ev.Hash()}, nil
}
return &ctypes.ResultBroadcastEvidence{Hash: ev.Hash()}, nil
return nil, err
}