add: eth offchain workder

- get current eth block hight for current time stamp - get total difficulty, parent hash - retry in request - build eth header - verify eth header - poc version: pass api key when build
freehere107 · Mar 20, 2020 · 0f2d751 · 0f2d751
1 parent 78c06fd
commit 0f2d751
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Showing 9 changed files with 538 additions and 1 deletion.
diff --git a/.travis.yml b/.travis.yml
@@ -53,6 +53,10 @@ jobs:
       env: RUST_TOOLCHAIN=nightly-2020-02-07 TARGET=native ETHBACKING
       script: .maintain/ci/darwinia_test_script.sh eth-backing
 
+    - stage: Darwinia Test
+      env: RUST_TOOLCHAIN=nightly-2020-02-07 TARGET=native ETHOFFCHAIN
+      script: .maintain/ci/darwinia_test_script.sh eth-offchain
+
     # TODO: remove this when overall test case ready
   allow_failures:
     - stage: Overall Test 

diff --git a/Cargo.lock b/Cargo.lock
diff --git a/Cargo.toml b/Cargo.toml
@@ -11,6 +11,7 @@ members = [
 	"frame/claims",
 	"frame/chainrelay/eth/backing",
 	"frame/chainrelay/eth/relay",
+	"frame/chainrelay/eth/offchain",
 	"frame/elections-phragmen",
 	"frame/staking",
 	"frame/support",

diff --git a/bin/node/runtime/Cargo.toml b/bin/node/runtime/Cargo.toml
@@ -70,6 +70,7 @@ pallet-claims = { package = "darwinia-claims", default-features = false, path =
 pallet-elections-phragmen = { package = "darwinia-elections-phragmen", default-features = false, path = "../../../frame/elections-phragmen" }
 pallet-eth-backing = { package = "darwinia-eth-backing", default-features = false, path = "../../../frame/chainrelay/eth/backing" }
 pallet-eth-relay = { package = "darwinia-eth-relay", default-features = false, path = "../../../frame/chainrelay/eth/relay" }
+pallet-eth-offchain = { package = "darwinia-eth-offchain", default-features = false, path = "../../../frame/chainrelay/eth/offchain" }
 pallet-kton = { package = "darwinia-kton", default-features = false, path = "../../../frame/balances/kton" }
 pallet-ring = { package = "darwinia-ring", default-features = false, path = "../../../frame/balances/ring" }
 pallet-staking = { package = "darwinia-staking", default-features = false, features = ["migrate"], path = "../../../frame/staking" }
@@ -122,6 +123,7 @@ std = [
 	"pallet-elections-phragmen/std",
 	"pallet-eth-backing/std",
 	"pallet-eth-relay/std",
+	"pallet-eth-offchain/std",
 	"pallet-kton/std",
 	"pallet-ring/std",
 	"pallet-staking/std",

diff --git a/bin/node/runtime/src/lib.rs b/bin/node/runtime/src/lib.rs
@@ -17,6 +17,7 @@ pub use pallet_timestamp::Call as TimestampCall;
 #[cfg(any(feature = "std", test))]
 pub use sp_runtime::BuildStorage;
 
+use pallet_eth_offchain;
 pub use pallet_ring::Call as RingCall;
 pub use pallet_staking::StakerStatus;
 
@@ -99,6 +100,27 @@ impl OnUnbalanced<NegativeImbalance> for DealWithFees {
 	}
 }
 
+type SubmitPFTransaction =
+	frame_system::offchain::TransactionSubmitter<pallet_eth_offchain::crypto::Public, Runtime, UncheckedExtrinsic>;
+
+parameter_types! {
+   pub const BlockFetchDur: BlockNumber = 3;
+   // TODO: pass this from command line
+   // this a poc versiona, build with following command to launch the poc binary
+   // `APIKEY=XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX cargo build`
+   pub const EthScanAPIKey: Option<Vec<u8>> = match option_env!("APIKEY"){
+	   Some(s) => Some(s.as_bytes().to_vec()),
+	   None => None,
+   };
+}
+
+impl pallet_eth_offchain::Trait for Runtime {
+	type Event = Event;
+	type Call = Call;
+	type SubmitSignedTransaction = SubmitPFTransaction;
+	type BlockFetchDur = BlockFetchDur;
+	type APIKey = EthScanAPIKey;
+}
 parameter_types! {
 	pub const BlockHashCount: BlockNumber = 250;
 	pub const MaximumBlockWeight: Weight = 1_000_000_000;
@@ -666,6 +688,7 @@ construct_runtime!(
 		Elections: pallet_elections_phragmen::{Module, Call, Storage, Event<T>},
 		EthBacking: pallet_eth_backing::{Module, Call, Storage, Config<T>, Event<T>},
 		EthRelay: pallet_eth_relay::{Module, Call, Storage, Config<T>, Event<T>},
+		EthOffchain: pallet_eth_offchain::{Module, Call, Storage, Event<T>},
 		Kton: pallet_kton::{Module, Call, Storage, Config<T>, Event<T>},
 		Balances: pallet_ring::{Module, Call, Storage, Config<T>, Event<T>},
 		Staking: pallet_staking::{Module, Call, Storage, Config<T>, Event<T>},

diff --git a/frame/chainrelay/eth/offchain/Cargo.toml b/frame/chainrelay/eth/offchain/Cargo.toml
@@ -0,0 +1,57 @@
+[package]
+name = "darwinia-eth-offchain"
+version = "0.1.0"
+authors = ["yanganto <yanganto@gmail.com>"]
+edition = "2018"
+
+[dependencies]
+num-traits = { default-features = false, version = "0.2.8" }
+
+sp-std = { default-features = false, git = "https://github.com/darwinia-network/substrate.git", tag = "v2.0.0-alpha.darwinia.1" }
+sp-runtime = { default-features = false, git = "https://github.com/darwinia-network/substrate.git", tag = "v2.0.0-alpha.darwinia.1" }
+sp-io = { default-features = false, git = "https://github.com/darwinia-network/substrate.git", tag = "v2.0.0-alpha.darwinia.1" }
+sp-session = { default-features = false, git = "https://github.com/darwinia-network/substrate.git", tag = "v2.0.0-alpha.darwinia.1" }
+
+frame-support = { default-features = false, git = "https://github.com/darwinia-network/substrate.git", tag = "v2.0.0-alpha.darwinia.1" }
+frame-system = { default-features = false, git = "https://github.com/darwinia-network/substrate.git", tag = "v2.0.0-alpha.darwinia.1" }
+
+pallet-timestamp = { default-features = false,  git = "https://github.com/darwinia-network/substrate.git", tag = "v2.0.0-alpha.darwinia.1" }
+pallet-eth-relay = { default-features = false, package = "darwinia-eth-relay", path = "../relay" }
+
+parity-scale-codec = { version = "1.0.0", default-features = false, features = ["derive"] }
+simple-json = { git = 'https://github.com/jimmychu0807/simple-json', version = '0.1.5', default_features = false }
+primitive-types = { default-features = false, features = ["codec", "rlp"], git = "https://github.com/darwinia-network/parity-common.git" }
+hex = { default-features = false, version = "0.4.2" }
+eth-primitives = { default-features = false, path = "../../../../primitives/eth-primitives" }
+ethereum-types = { default-features = false, git = "https://github.com/darwinia-network/parity-common.git" }
+ethbloom = { default-features = false, git ="https://github.com/darwinia-network/parity-common.git" }
+rlp = { default-features = false, git = "https://github.com/darwinia-network/parity-common.git" }
+
+[build-dependencies]
+wasm-builder-runner = { git = "https://github.com/darwinia-network/substrate.git", tag = "v2.0.0-alpha.darwinia.1", package = "substrate-wasm-builder-runner", version = "1.0.4" }
+
+[features]
+default = ["std"]
+std = [
+    "num-traits/std",
+
+    "sp-std/std",
+    "sp-io/std",
+    "sp-runtime/std",
+    "sp-session/std",
+
+    "frame-support/std",
+    "frame-system/std",
+
+    "pallet-timestamp/std",
+    "pallet-eth-relay/std",
+
+    "parity-scale-codec/std",
+    "simple-json/std",
+    "primitive-types/std",
+    "hex/std",
+    "eth-primitives/std",
+    "ethereum-types/std",
+    "ethbloom/std",
+    "rlp/std",
+]