From f7cdea2bdcd7ff3cec99731cb912cde0b233d6c9 Mon Sep 17 00:00:00 2001
From: gary rong <garyrong0905@gmail.com>
Date: Fri, 28 Jun 2019 15:34:02 +0800
Subject: all: on-chain oracle checkpoint syncing (#19543)

* 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
---
 light/odr.go | 22 +++++++++++++++-------
 1 file changed, 15 insertions(+), 7 deletions(-)

(limited to 'light/odr.go')

diff --git a/light/odr.go b/light/odr.go
index d1185e4e0..907712ede 100644
--- a/light/odr.go
+++ b/light/odr.go
@@ -122,19 +122,25 @@ func (req *BlockRequest) StoreResult(db ethdb.Database) {
 // ReceiptsRequest is the ODR request type for retrieving block bodies
 type ReceiptsRequest struct {
 	OdrRequest
-	Hash     common.Hash
-	Number   uint64
-	Receipts types.Receipts
+	Untrusted bool // Indicator whether the result retrieved is trusted or not
+	Hash      common.Hash
+	Number    uint64
+	Header    *types.Header
+	Receipts  types.Receipts
 }
 
 // StoreResult stores the retrieved data in local database
 func (req *ReceiptsRequest) StoreResult(db ethdb.Database) {
-	rawdb.WriteReceipts(db, req.Hash, req.Number, req.Receipts)
+	if !req.Untrusted {
+		rawdb.WriteReceipts(db, req.Hash, req.Number, req.Receipts)
+	}
 }
 
 // ChtRequest is the ODR request type for state/storage trie entries
 type ChtRequest struct {
 	OdrRequest
+	Untrusted        bool   // Indicator whether the result retrieved is trusted or not
+	PeerId           string // The specified peer id from which to retrieve data.
 	Config           *IndexerConfig
 	ChtNum, BlockNum uint64
 	ChtRoot          common.Hash
@@ -147,9 +153,11 @@ type ChtRequest struct {
 func (req *ChtRequest) StoreResult(db ethdb.Database) {
 	hash, num := req.Header.Hash(), req.Header.Number.Uint64()
 
-	rawdb.WriteHeader(db, req.Header)
-	rawdb.WriteTd(db, hash, num, req.Td)
-	rawdb.WriteCanonicalHash(db, hash, num)
+	if !req.Untrusted {
+		rawdb.WriteHeader(db, req.Header)
+		rawdb.WriteTd(db, hash, num, req.Td)
+		rawdb.WriteCanonicalHash(db, hash, num)
+	}
 }
 
 // BloomRequest is the ODR request type for retrieving bloom filters from a CHT structure
-- 
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