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49 lines
1.2 KiB
49 lines
1.2 KiB
package proxy
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import (
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"bytes"
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"github.com/pkg/errors"
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"github.com/tendermint/tendermint/lite"
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certerr "github.com/tendermint/tendermint/lite/errors"
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"github.com/tendermint/tendermint/types"
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)
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func ValidateBlockMeta(meta *types.BlockMeta, check lite.Commit) error {
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if meta == nil {
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return errors.New("expecting a non-nil BlockMeta")
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}
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// TODO: check the BlockID??
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return ValidateHeader(&meta.Header, check)
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}
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func ValidateBlock(meta *types.Block, check lite.Commit) error {
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if meta == nil {
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return errors.New("expecting a non-nil Block")
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}
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err := ValidateHeader(&meta.Header, check)
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if err != nil {
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return err
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}
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if !bytes.Equal(meta.Data.Hash(), meta.Header.DataHash) {
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return errors.New("Data hash doesn't match header")
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}
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return nil
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}
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func ValidateHeader(head *types.Header, check lite.Commit) error {
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if head == nil {
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return errors.New("expecting a non-nil Header")
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}
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// make sure they are for the same height (obvious fail)
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if head.Height != check.Height() {
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return certerr.ErrHeightMismatch(head.Height, check.Height())
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}
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// check if they are equal by using hashes
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chead := check.Header
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if !bytes.Equal(head.Hash(), chead.Hash()) {
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return errors.New("Headers don't match")
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}
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return nil
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}
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