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all: on-chain oracle checkpoint syncing (#19543)

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* all: implement simple checkpoint syncing

cmd, les, node: remove callback mechanism

cmd, node: remove callback definition

les: simplify the registrar

les: expose checkpoint rpc services in the light client

les, light: don't store untrusted receipt

cmd, contracts, les: discard stale checkpoint

cmd, contracts/registrar: loose restriction of registeration

cmd, contracts: add replay-protection

all: off-chain multi-signature contract

params: deploy checkpoint contract for rinkeby

cmd/registrar: add raw signing mode for registrar

cmd/registrar, contracts/registrar, les: fixed messages

* cmd/registrar, contracts/registrar: fix lints

* accounts/abi/bind, les: address comments

* cmd, contracts, les, light, params: minor checkpoint sync cleanups

* cmd, eth, les, light: move checkpoint config to config file

* cmd, eth, les, params: address comments

* eth, les, params: address comments

* cmd: polish up the checkpoint admin CLI

* cmd, contracts, params: deploy new version contract

* cmd/checkpoint-admin: add another flag for clef mode signing

* cmd, contracts, les: rename and regen checkpoint oracle with abigen
This commit is contained in:
gary rong
2019-06-28 15:34:02 +08:00
committed by Péter Szilágyi
parent 702f52fb99
commit f7cdea2bdc
49 changed files with 2861 additions and 383 deletions
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34
light/odr_util.go
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@ -69,6 +69,16 @@ func GetHeaderByNumber(ctx context.Context, odr OdrBackend, number uint64) (*typ
return r.Header, nil
}
// GetUntrustedHeaderByNumber fetches specified block header without correctness checking.
// Note this function should only be used in light client checkpoint syncing.
func GetUntrustedHeaderByNumber(ctx context.Context, odr OdrBackend, number uint64, peerId string) (*types.Header, error) {
r := &ChtRequest{BlockNum: number, ChtNum: number / odr.IndexerConfig().ChtSize, Untrusted: true, PeerId: peerId, Config: odr.IndexerConfig()}
if err := odr.Retrieve(ctx, r); err != nil {
return nil, err
}
return r.Header, nil
}
func GetCanonicalHash(ctx context.Context, odr OdrBackend, number uint64) (common.Hash, error) {
hash := rawdb.ReadCanonicalHash(odr.Database(), number)
if (hash != common.Hash{}) {
@ -169,6 +179,30 @@ func GetBlockLogs(ctx context.Context, odr OdrBackend, hash common.Hash, number
return logs, nil
}
// GetUntrustedBlockLogs retrieves the logs generated by the transactions included in a
// block. The retrieved logs are regarded as untrusted and will not be stored in the
// database. This function should only be used in light client checkpoint syncing.
func GetUntrustedBlockLogs(ctx context.Context, odr OdrBackend, header *types.Header) ([][]*types.Log, error) {
// Retrieve the potentially incomplete receipts from disk or network
hash, number := header.Hash(), header.Number.Uint64()
receipts := rawdb.ReadRawReceipts(odr.Database(), hash, number)
if receipts == nil {
r := &ReceiptsRequest{Hash: hash, Number: number, Header: header, Untrusted: true}
if err := odr.Retrieve(ctx, r); err != nil {
return nil, err
}
receipts = r.Receipts
// Untrusted receipts won't be stored in the database. Therefore
// derived fields computation is unnecessary.
}
// Return the logs without deriving any computed fields on the receipts
logs := make([][]*types.Log, len(receipts))
for i, receipt := range receipts {
logs[i] = receipt.Logs
}
return logs, nil
}
// GetBloomBits retrieves a batch of compressed bloomBits vectors belonging to the given bit index and section indexes
func GetBloomBits(ctx context.Context, odr OdrBackend, bitIdx uint, sectionIdxList []uint64) ([][]byte, error) {
var (