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80 lines
2.1 KiB
80 lines
2.1 KiB
package privval
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import (
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"io/ioutil"
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"os"
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"github.com/tendermint/tendermint/crypto"
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cmn "github.com/tendermint/tendermint/libs/common"
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"github.com/tendermint/tendermint/types"
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)
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// OldFilePV is the old version of the FilePV, pre v0.28.0.
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type OldFilePV struct {
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Address types.Address `json:"address"`
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PubKey crypto.PubKey `json:"pub_key"`
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LastHeight int64 `json:"last_height"`
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LastRound int `json:"last_round"`
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LastStep int8 `json:"last_step"`
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LastSignature []byte `json:"last_signature,omitempty"`
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LastSignBytes cmn.HexBytes `json:"last_signbytes,omitempty"`
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PrivKey crypto.PrivKey `json:"priv_key"`
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filePath string
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}
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// LoadOldFilePV loads an OldFilePV from the filePath.
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func LoadOldFilePV(filePath string) (*OldFilePV, error) {
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pvJSONBytes, err := ioutil.ReadFile(filePath)
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if err != nil {
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return nil, err
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}
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pv := &OldFilePV{}
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err = cdc.UnmarshalJSON(pvJSONBytes, &pv)
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if err != nil {
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return nil, err
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}
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// overwrite pubkey and address for convenience
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pv.PubKey = pv.PrivKey.PubKey()
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pv.Address = pv.PubKey.Address()
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pv.filePath = filePath
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return pv, nil
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}
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// Upgrade convets the OldFilePV to the new FilePV, separating the immutable and mutable components,
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// and persisting them to the keyFilePath and stateFilePath, respectively.
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// It renames the original file by adding ".bak".
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func (oldFilePV *OldFilePV) Upgrade(keyFilePath, stateFilePath string) *FilePV {
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privKey := oldFilePV.PrivKey
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pvKey := FilePVKey{
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PrivKey: privKey,
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PubKey: privKey.PubKey(),
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Address: privKey.PubKey().Address(),
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filePath: keyFilePath,
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}
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pvState := FilePVLastSignState{
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Height: oldFilePV.LastHeight,
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Round: oldFilePV.LastRound,
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Step: oldFilePV.LastStep,
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Signature: oldFilePV.LastSignature,
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SignBytes: oldFilePV.LastSignBytes,
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filePath: stateFilePath,
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}
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// Save the new PV files
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pv := &FilePV{
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Key: pvKey,
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LastSignState: pvState,
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}
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pv.Save()
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// Rename the old PV file
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err := os.Rename(oldFilePV.filePath, oldFilePV.filePath+".bak")
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if err != nil {
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panic(err)
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}
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return pv
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}
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