From 9c6cf960b46fc71d62ebb5c2d7a1b32634afc2e4 Mon Sep 17 00:00:00 2001
From: Felix Lange <fjl@twurst.com>
Date: Tue, 19 Nov 2019 18:22:04 +0100
Subject: [PATCH] internal/web3ext, les: update clique JS and make it work with
 the light client (#20318)

Also fix the input formatter on clique_getSnapshot and clique_getSigners
so that integers as well as hex number strings are accepted.
---
 internal/web3ext/web3ext.go | 9 +++++++--
 les/client.go               | 4 +++-
 light/lightchain.go         | 5 +++++
 3 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/internal/web3ext/web3ext.go b/internal/web3ext/web3ext.go
index 53f2425e7..dbffbd2a8 100644
--- a/internal/web3ext/web3ext.go
+++ b/internal/web3ext/web3ext.go
@@ -74,7 +74,7 @@ web3._extend({
 			name: 'getSnapshot',
 			call: 'clique_getSnapshot',
 			params: 1,
-			inputFormatter: [null]
+			inputFormatter: [web3._extend.utils.fromDecimal]
 		}),
 		new web3._extend.Method({
 			name: 'getSnapshotAtHash',
@@ -85,7 +85,7 @@ web3._extend({
 			name: 'getSigners',
 			call: 'clique_getSigners',
 			params: 1,
-			inputFormatter: [null]
+			inputFormatter: [web3._extend.utils.fromDecimal]
 		}),
 		new web3._extend.Method({
 			name: 'getSignersAtHash',
@@ -102,6 +102,11 @@ web3._extend({
 			call: 'clique_discard',
 			params: 1
 		}),
+		new web3._extend.Method({
+			name: 'status',
+			call: 'clique_status',
+			params: 0
+		}),
 	],
 	properties: [
 		new web3._extend.Property({
diff --git a/les/client.go b/les/client.go
index b367681f3..1ad44e16d 100644
--- a/les/client.go
+++ b/les/client.go
@@ -176,7 +176,9 @@ func (s *LightDummyAPI) Mining() bool {
 // APIs returns the collection of RPC services the ethereum package offers.
 // NOTE, some of these services probably need to be moved to somewhere else.
 func (s *LightEthereum) APIs() []rpc.API {
-	return append(ethapi.GetAPIs(s.ApiBackend), []rpc.API{
+	apis := ethapi.GetAPIs(s.ApiBackend)
+	apis = append(apis, s.engine.APIs(s.BlockChain().HeaderChain())...)
+	return append(apis, []rpc.API{
 		{
 			Namespace: "eth",
 			Version:   "1.0",
diff --git a/light/lightchain.go b/light/lightchain.go
index 02b90138a..90ea26323 100644
--- a/light/lightchain.go
+++ b/light/lightchain.go
@@ -143,6 +143,11 @@ func (lc *LightChain) Odr() OdrBackend {
 	return lc.odr
 }
 
+// HeaderChain returns the underlying header chain.
+func (lc *LightChain) HeaderChain() *core.HeaderChain {
+	return lc.hc
+}
+
 // loadLastState loads the last known chain state from the database. This method
 // assumes that the chain manager mutex is held.
 func (lc *LightChain) loadLastState() error {