[beta] Backports (#5434)

* v1.6.6

* Strict validation transitions (#4988)

* ability to make validation stricter

* fix consensus

* remove logger

* Fix eth_sign showing as wallet account (#5309)

* defaultProps for account

* Pass signing account

* Update tests for Connect(...)

* Add new seed nodes (#5345)

* Kovan warp sync fixed

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 description = "Parity Ethereum client"
 name = "parity"
-version = "1.6.5"
+version = "1.6.6"
 license = "GPL-3.0"
 authors = ["Parity Technologies <[email protected]>"]
 

ethcore/res/ethereum/classic.json

@@ -53,7 +53,9 @@
 		"enode://5fbfb426fbb46f8b8c1bd3dd140f5b511da558cd37d60844b525909ab82e13a25ee722293c829e52cb65c2305b1637fa9a2ea4d6634a224d5f400bfe244ac0de@162.243.55.45:30303",
 		"enode://42d8f29d1db5f4b2947cd5c3d76c6d0d3697e6b9b3430c3d41e46b4bb77655433aeedc25d4b4ea9d8214b6a43008ba67199374a9b53633301bca0cd20c6928ab@104.155.176.151:30303",
 		"enode://814920f1ec9510aa9ea1c8f79d8b6e6a462045f09caa2ae4055b0f34f7416fca6facd3dd45f1cf1673c0209e0503f02776b8ff94020e98b6679a0dc561b4eba0@104.154.136.117:30303",
-		"enode://72e445f4e89c0f476d404bc40478b0df83a5b500d2d2e850e08eb1af0cd464ab86db6160d0fde64bd77d5f0d33507ae19035671b3c74fec126d6e28787669740@104.198.71.200:30303"
+		"enode://72e445f4e89c0f476d404bc40478b0df83a5b500d2d2e850e08eb1af0cd464ab86db6160d0fde64bd77d5f0d33507ae19035671b3c74fec126d6e28787669740@104.198.71.200:30303",
+		"enode://39abab9d2a41f53298c0c9dc6bbca57b0840c3ba9dccf42aa27316addc1b7e56ade32a0a9f7f52d6c5db4fe74d8824bcedfeaecf1a4e533cacb71cf8100a9442@144.76.238.49:30303",
+		"enode://f50e675a34f471af2438b921914b5f06499c7438f3146f6b8936f1faeb50b8a91d0d0c24fb05a66f05865cd58c24da3e664d0def806172ddd0d4c5bdbf37747e@144.76.238.49:30306"
 	],
 	"accounts": {
 		"0000000000000000000000000000000000000001": { "builtin": { "name": "ecrecover", "pricing": { "linear": { "base": 3000, "word": 0 } } } },

ethcore/res/ethereum/kovan.json

@@ -33,7 +33,7 @@
     "maximumExtraDataSize": "0x20",
     "minGasLimit": "0x1388",
     "networkID" : "0x2A",
-    "validateReceipts" : false
+    "validateReceiptsTransition" : 1000000
   },
   "genesis": {
     "seal": {

ethcore/src/block.rs

@@ -493,6 +493,16 @@ impl LockedBlock {
 			_ => Ok(SealedBlock { block: s.block, uncle_bytes: s.uncle_bytes }),
 		}
 	}
+
+	/// Remove state root from transaction receipts to make them EIP-98 compatible.
+	pub fn strip_receipts(self) -> LockedBlock {
+		let mut block = self;
+		for receipt in &mut block.block.receipts {
+			receipt.state_root = None;
+		}
+		block.block.header.set_receipts_root(ordered_trie_root(block.block.receipts.iter().map(|r| r.rlp_bytes().to_vec())));
+		block
+	}
 }
 
 impl Drain for LockedBlock {

ethcore/src/client/client.rs

@@ -375,12 +375,16 @@ impl Client {
 			let db = self.state_db.lock().boxed_clone_canon(header.parent_hash());
 
 			let enact_result = enact_verified(block, engine, self.tracedb.read().tracing_enabled(), db, &parent, last_hashes, self.factories.clone());
-			let locked_block = enact_result.map_err(|e| {
+			let mut locked_block = enact_result.map_err(|e| {
 				warn!(target: "client", "Block import failed for #{} ({})\nError: {:?}", header.number(), header.hash(), e);
 			})?;
 
+			if header.number() < self.engine().params().validate_receipts_transition && header.receipts_root() != locked_block.block().header().receipts_root() {
+				locked_block = locked_block.strip_receipts();
+			}
+
 			// Final Verification
-			if let Err(e) = self.verifier.verify_block_final(header, locked_block.block().header(), self.engine().params().validate_receipts) {
+			if let Err(e) = self.verifier.verify_block_final(header, locked_block.block().header()) {
 				warn!(target: "client", "Stage 4 block verification failed for #{} ({})\nError: {:?}", header.number(), header.hash(), e);
 				return Err(());
 			}