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Merge pull request #5 from datachainlab/ek-finality
Add unfinalized eki support Signed-off-by: Jun Kimura <jun.kimura@datachain.jp>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,104 @@ | ||
| package relay | ||
|
|
||
| import ( | ||
| "context" | ||
| "encoding/json" | ||
| "errors" | ||
| "fmt" | ||
| "log" | ||
| "os" | ||
| "path/filepath" | ||
|
|
||
| "github.com/datachainlab/lcp-go/relay/enclave" | ||
| "github.com/hyperledger-labs/yui-relayer/core" | ||
| ) | ||
|
|
||
| const ( | ||
| lastFinalizedEnclaveKeyInfoFile = "last_finalized_eki" | ||
| lastUnfinalizedEnclaveKeyInfoFile = "last_unfinalized_eki" | ||
| ) | ||
|
|
||
| var ErrEnclaveKeyInfoNotFound = errors.New("enclave key info not found") | ||
|
|
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| type unfinalizedEKI struct { | ||
| Info *enclave.EnclaveKeyInfo `json:"info"` | ||
| MsgIDBytes []byte `json:"msg_id_bytes"` | ||
| } | ||
|
|
||
| func (pr *Prover) dbPath() string { | ||
| return filepath.Join(pr.homePath, "lcp", pr.originChain.ChainID()) | ||
| } | ||
|
|
||
| func (pr *Prover) lastEnclaveKeyInfoFilePath(finalized bool) string { | ||
| if finalized { | ||
| return filepath.Join(pr.dbPath(), lastFinalizedEnclaveKeyInfoFile) | ||
| } else { | ||
| return filepath.Join(pr.dbPath(), lastUnfinalizedEnclaveKeyInfoFile) | ||
| } | ||
| } | ||
|
|
||
| func (pr *Prover) loadLastFinalizedEnclaveKey(ctx context.Context) (*enclave.EnclaveKeyInfo, error) { | ||
| path := pr.lastEnclaveKeyInfoFilePath(true) | ||
| bz, err := os.ReadFile(path) | ||
| if err != nil { | ||
| if os.IsNotExist(err) { | ||
| return nil, fmt.Errorf("%v not found: %w", path, ErrEnclaveKeyInfoNotFound) | ||
| } | ||
| return nil, err | ||
| } | ||
| var eki enclave.EnclaveKeyInfo | ||
| if err := json.Unmarshal(bz, &eki); err != nil { | ||
| return nil, err | ||
| } | ||
| return &eki, nil | ||
| } | ||
|
|
||
| func (pr *Prover) loadLastUnfinalizedEnclaveKey(ctx context.Context) (*enclave.EnclaveKeyInfo, core.MsgID, error) { | ||
| path := pr.lastEnclaveKeyInfoFilePath(false) | ||
| bz, err := os.ReadFile(path) | ||
| if err != nil { | ||
| if os.IsNotExist(err) { | ||
| return nil, nil, fmt.Errorf("%v not found: %w", path, ErrEnclaveKeyInfoNotFound) | ||
| } | ||
| return nil, nil, err | ||
| } | ||
| var ueki unfinalizedEKI | ||
| if err := json.Unmarshal(bz, &ueki); err != nil { | ||
| return nil, nil, err | ||
| } | ||
| var unfinalizedMsgID core.MsgID | ||
| if err := pr.codec.UnmarshalInterface(ueki.MsgIDBytes, &unfinalizedMsgID); err != nil { | ||
| return nil, nil, err | ||
| } | ||
| return ueki.Info, unfinalizedMsgID, nil | ||
| } | ||
|
|
||
| func (pr *Prover) saveFinalizedEnclaveKeyInfo(ctx context.Context, eki *enclave.EnclaveKeyInfo) error { | ||
| log.Println("save finalized enclave key info") | ||
| bz, err := json.Marshal(eki) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| return os.WriteFile(pr.lastEnclaveKeyInfoFilePath(true), bz, 0600) | ||
| } | ||
|
|
||
| func (pr *Prover) saveUnfinalizedEnclaveKeyInfo(ctx context.Context, eki *enclave.EnclaveKeyInfo, msgID core.MsgID) error { | ||
| log.Println("save unfinalized enclave key info") | ||
| msgIDBytes, err := pr.codec.MarshalInterface(msgID) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| bz, err := json.Marshal(unfinalizedEKI{ | ||
| Info: eki, | ||
| MsgIDBytes: msgIDBytes, | ||
| }) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| return os.WriteFile(pr.lastEnclaveKeyInfoFilePath(false), bz, 0600) | ||
| } | ||
|
|
||
| func (pr *Prover) removeUnfinalizedEnclaveKeyInfo(ctx context.Context) error { | ||
| log.Println("remove unfinalized enclave key info") | ||
| return os.Remove(pr.lastEnclaveKeyInfoFilePath(false)) | ||
| } |
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