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package consensus
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import (
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. "github.com/tendermint/tendermint/blocks"
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db_ "github.com/tendermint/tendermint/db"
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. "github.com/tendermint/tendermint/state"
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)
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//-----------------------------------------------------------------------------
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type PrivValidator struct {
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PrivAccount
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db *db_.LevelDB
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}
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// Returns new signed blockParts.
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// If signatures already exist in proposal BlockParts,
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// e.g. a locked proposal from some prior round,
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// those signatures are overwritten.
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// Double signing (signing multiple proposals for the same height&round) results in an error.
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func (pv *PrivValidator) SignProposal(round uint16, proposal *BlockPartSet) (err error) {
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//TODO: prevent double signing.
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blockParts := proposal.BlockParts()
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for i, part := range blockParts {
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partHash := part.Hash()
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doc := GenBlockPartDocument(
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proposal.Height(), round, uint16(i), uint16(len(blockParts)), partHash)
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part.Signature = pv.Sign([]byte(doc))
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}
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return nil
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}
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// Modifies the vote object in memory.
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// Double signing results in an error.
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func (pv *PrivValidator) SignVote(vote *Vote) error {
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//TODO: prevent double signing.
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doc := GenVoteDocument(vote.Type, vote.Height, vote.Round, vote.Hash)
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vote.Signature = pv.Sign([]byte(doc))
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return nil
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}
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