add debug rpc endpoints for checkpoint whitelist service

eth/api_backend.go

@@ -359,3 +359,11 @@ func (b *EthAPIBackend) StateAtBlock(ctx context.Context, block *types.Block, re
 func (b *EthAPIBackend) StateAtTransaction(ctx context.Context, block *types.Block, txIndex int, reexec uint64) (core.Message, vm.BlockContext, *state.StateDB, error) {
 	return b.eth.stateAtTransaction(block, txIndex, reexec)
 }
+
+func (b *EthAPIBackend) GetCheckpointWhitelist() map[uint64]common.Hash {
+	return b.eth.Downloader().ChainValidator.GetCheckpointWhitelist()
+}
+
+func (b *EthAPIBackend) PurgeCheckpointWhitelist() {
+	b.eth.Downloader().ChainValidator.PurgeCheckpointWhitelist()
+}

eth/downloader/downloader.go

@@ -157,6 +157,8 @@ type Downloader struct {
 type ChainValidator interface {
 	IsValidChain(remoteHeader *types.Header, fetchHeadersByNumber func(number uint64, amount int, skip int, reverse bool) ([]*types.Header, []common.Hash, error)) (bool, error)
 	ProcessCheckpoint(endBlockNum uint64, endBlockHash common.Hash)
+	GetCheckpointWhitelist() map[uint64]common.Hash
+	PurgeCheckpointWhitelist()
 }
 
 // LightChain encapsulates functions required to synchronise a light chain.

eth/downloader/downloader_test.go

@@ -1420,6 +1420,12 @@ func (w *whitelistFake) IsValidChain(remoteHeader *types.Header, fetchHeadersByN
 
 func (w *whitelistFake) ProcessCheckpoint(endBlockNum uint64, endBlockHash common.Hash) {}
 
+func (w *whitelistFake) GetCheckpointWhitelist() map[uint64]common.Hash {
+	return nil
+}
+
+func (w *whitelistFake) PurgeCheckpointWhitelist() {}
+
 // TestFakedSyncProgress66WhitelistMismatch tests if in case of whitelisted
 // checkpoint mismatch with opposite peer, the sync should fail.
 func TestFakedSyncProgress66WhitelistMismatch(t *testing.T) {

eth/downloader/whitelist/service.go

@@ -82,12 +82,16 @@ func (w *Service) ProcessCheckpoint(endBlockNum uint64, endBlockHash common.Hash
 	}
 }
 
-// PurgeWhitelistMap purges data from checkpoint whitelist map
+// GetCheckpointWhitelist returns the existing whitelisted
-func (w *Service) purgeWhitelistMap() error {
+// entries of checkpoint of the form block number -> block hash.
-	for k := range w.checkpointWhitelist {
+func (w *Service) GetCheckpointWhitelist() map[uint64]common.Hash {
-		delete(w.checkpointWhitelist, k)
+	return w.checkpointWhitelist
-	}
+}
-	return nil
+
+// PurgeCheckpointWhitelist purges data from checkpoint whitelist map
+func (w *Service) PurgeCheckpointWhitelist() {
+	w.checkpointWhitelist = make(map[uint64]common.Hash)
+	w.checkpointOrder = make([]uint64, 0)
 }
 
 // EnqueueWhitelistBlock enqueues blockNumber, blockHash to the checkpoint whitelist map

internal/ethapi/api.go

@@ -2156,6 +2156,17 @@ func (api *PrivateDebugAPI) SetHead(number hexutil.Uint64) {
 	api.b.SetHead(uint64(number))
 }
 
+// GetCheckpointWhitelist retrieves the current checkpoint whitelist
+// entries (of the form block number -> block hash)
+func (api *PrivateDebugAPI) GetCheckpointWhitelist() map[uint64]common.Hash {
+	return api.b.GetCheckpointWhitelist()
+}
+
+// PurgeCheckpointWhitelist purges the current checkpoint whitelist entries
+func (api *PrivateDebugAPI) PurgeCheckpointWhitelist() {
+	api.b.PurgeCheckpointWhitelist()
+}
+
 // PublicNetAPI offers network related RPC methods
 type PublicNetAPI struct {
 	net            *p2p.Server

internal/ethapi/backend.go

@@ -99,6 +99,8 @@ type Backend interface {
 	GetBorBlockTransaction(ctx context.Context, txHash common.Hash) (*types.Transaction, common.Hash, uint64, uint64, error)
 	GetBorBlockTransactionWithBlockHash(ctx context.Context, txHash common.Hash, blockHash common.Hash) (*types.Transaction, common.Hash, uint64, uint64, error)
 	SubscribeChain2HeadEvent(ch chan<- core.Chain2HeadEvent) event.Subscription
+	GetCheckpointWhitelist() map[uint64]common.Hash
+	PurgeCheckpointWhitelist()
 
 	ChainConfig() *params.ChainConfig
 	Engine() consensus.Engine

internal/web3ext/web3ext.go

@@ -474,6 +474,16 @@ web3._extend({
 			params: 2,
 			inputFormatter:[web3._extend.formatters.inputBlockNumberFormatter, web3._extend.formatters.inputBlockNumberFormatter],
 		}),
+		new web3._extend.Method({
+			name: 'getCheckpointWhitelist',
+			call: 'debug_getCheckpointWhitelist',
+			params: 0,
+		}),
+		new web3._extend.Method({
+			name: 'purgeCheckpointWhitelist',
+			call: 'debug_purgeCheckpointWhitelist',
+			params: 0,
+		}),
 	],
 	properties: []
 });

les/api_backend.go

@@ -337,17 +337,24 @@ func (b *LesApiBackend) StateAtTransaction(ctx context.Context, block *types.Blo
 //
 
 func (b *LesApiBackend) GetBorBlockReceipt(ctx context.Context, hash common.Hash) (*types.Receipt, error) {
-	return nil, errors.New("Not implemented")
+	return nil, errors.New("not implemented")
 }
 
 func (b *LesApiBackend) GetBorBlockLogs(ctx context.Context, hash common.Hash) ([]*types.Log, error) {
-	return nil, errors.New("Not implemented")
+	return nil, errors.New("not implemented")
 }
 
 func (b *LesApiBackend) GetBorBlockTransaction(ctx context.Context, txHash common.Hash) (*types.Transaction, common.Hash, uint64, uint64, error) {
-	return nil, common.Hash{}, 0, 0, errors.New("Not implemented")
+	return nil, common.Hash{}, 0, 0, errors.New("not implemented")
 }
 
 func (b *LesApiBackend) GetBorBlockTransactionWithBlockHash(ctx context.Context, txHash common.Hash, blockHash common.Hash) (*types.Transaction, common.Hash, uint64, uint64, error) {
-	return nil, common.Hash{}, 0, 0, errors.New("Not implemented")
+	return nil, common.Hash{}, 0, 0, errors.New("not implemented")
+}
+
+func (b *LesApiBackend) GetCheckpointWhitelist() map[uint64]common.Hash {
+	return nil
+}
+
+func (b *LesApiBackend) PurgeCheckpointWhitelist() {
 }