Phase 1 of repo reorg (#719)

* Remove unneeded script * Rename Substrate Demo -> Substrate * Rename demo -> node * Build wasm from last rename. * Merge ed25519 into substrate-primitives * Minor tweak * Rename substrate -> core * Move substrate-runtime-support to core/runtime/support * Rename/move substrate-runtime-version * Move codec up a level * Rename substrate-codec -> parity-codec * Move environmental up a level * Move pwasm-* up to top, ready for removal * Remove requirement of s-r-support from s-r-primitives * Move core/runtime/primitives into core/runtime-primitives * Remove s-r-support dep from s-r-version * Remove dep of s-r-support from bft * Remove dep of s-r-support from node/consensus * Sever all other core deps from s-r-support * Forgot the no_std directive * Rename non-SRML modules to sr-* to avoid match clashes * Move runtime/* to srml/* * Rename substrate-runtime-* -> srml-* * Move srml to top-level
2026-06-13 01:11:10 +00:00 · 2018-09-12 11:13:31 +02:00
parent 8fe5aa4c81
commit 1e01162505
374 changed files with 2845 additions and 2902 deletions
@@ -0,0 +1,281 @@
+// Copyright 2017 Parity Technologies (UK) Ltd.
+// This file is part of Substrate.
+
+// Substrate is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Substrate is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Substrate.  If not, see <http://www.gnu.org/licenses/>.
+
+//! System manager: Handles all of the top-level stuff; executing block/transaction, setting code
+//! and depositing logs.
+
+use rstd::prelude::*;
+use runtime_io::{storage_root, enumerated_trie_root};
+use runtime_support::storage::{self, StorageValue, StorageMap};
+use runtime_primitives::traits::{Hash as HashT, BlakeTwo256};
+use runtime_primitives::{ApplyError, ApplyOutcome, ApplyResult};
+use codec::{KeyedVec, Encode};
+use super::{AccountId, BlockNumber, Extrinsic, H256 as Hash, Block, Header};
+use primitives::Blake2Hasher;
+
+const NONCE_OF: &[u8] = b"nonce:";
+const BALANCE_OF: &[u8] = b"balance:";
+const AUTHORITY_AT: &'static[u8] = b":auth:";
+const AUTHORITY_COUNT: &'static[u8] = b":auth:len";
+
+storage_items! {
+	ExtrinsicIndex: b"sys:xti" => required u32;
+	ExtrinsicData: b"sys:xtd" => required map [ u32 => Vec<u8> ];
+	// The current block number being processed. Set by `execute_block`.
+	Number: b"sys:num" => required BlockNumber;
+	ParentHash: b"sys:pha" => required Hash;
+}
+
+pub fn balance_of(who: AccountId) -> u64 {
+	storage::get_or(&who.to_keyed_vec(BALANCE_OF), 0)
+}
+
+pub fn nonce_of(who: AccountId) -> u64 {
+	storage::get_or(&who.to_keyed_vec(NONCE_OF), 0)
+}
+
+/// Get authorities ar given block.
+pub fn authorities() -> Vec<::primitives::AuthorityId> {
+	let len: u32 = storage::unhashed::get(AUTHORITY_COUNT).expect("There are always authorities in test-runtime");
+	(0..len)
+		.map(|i| storage::unhashed::get(&i.to_keyed_vec(AUTHORITY_AT)).expect("Authority is properly encoded in test-runtime"))
+		.collect()
+}
+
+pub fn initialise_block(header: Header) {
+	// populate environment.
+	<Number>::put(&header.number);
+	<ParentHash>::put(&header.parent_hash);
+	<ExtrinsicIndex>::put(0);
+}
+
+/// Actually execute all transitioning for `block`.
+pub fn execute_block(block: Block) {
+	let ref header = block.header;
+
+	// check transaction trie root represents the transactions.
+	let txs = block.extrinsics.iter().map(Encode::encode).collect::<Vec<_>>();
+	let txs = txs.iter().map(Vec::as_slice).collect::<Vec<_>>();
+	let txs_root = enumerated_trie_root::<Blake2Hasher>(&txs).into();
+	info_expect_equal_hash(&txs_root, &header.extrinsics_root);
+	assert!(txs_root == header.extrinsics_root, "Transaction trie root must be valid.");
+
+	// execute transactions
+	block.extrinsics.iter().for_each(|e| { execute_transaction_backend(e).map_err(|_| ()).expect("Extrinsic error"); });
+
+	// check storage root.
+	let storage_root = storage_root().into();
+	info_expect_equal_hash(&storage_root, &header.state_root);
+	assert!(storage_root == header.state_root, "Storage root must match that calculated.");
+}
+
+/// Execute a transaction outside of the block execution function.
+/// This doesn't attempt to validate anything regarding the block.
+pub fn execute_transaction(utx: Extrinsic) -> ApplyResult {
+	let extrinsic_index = ExtrinsicIndex::get();
+	ExtrinsicData::insert(extrinsic_index, utx.encode());
+	ExtrinsicIndex::put(extrinsic_index + 1);
+	execute_transaction_backend(&utx)
+}
+
+/// Finalise the block.
+pub fn finalise_block() -> Header {
+	let extrinsic_index = ExtrinsicIndex::take();
+	let txs: Vec<_> = (0..extrinsic_index).map(ExtrinsicData::take).collect();
+	let txs = txs.iter().map(Vec::as_slice).collect::<Vec<_>>();
+	let extrinsics_root = enumerated_trie_root::<Blake2Hasher>(&txs).into();
+
+	let number = <Number>::take();
+	let parent_hash = <ParentHash>::take();
+	let storage_root = BlakeTwo256::storage_root();
+
+	Header {
+		number,
+		extrinsics_root,
+		state_root: storage_root,
+		parent_hash,
+		digest: Default::default(),
+	}
+}
+
+fn execute_transaction_backend(utx: &Extrinsic) -> ApplyResult {
+	use runtime_primitives::traits::BlindCheckable;
+
+	// check signature
+	let utx = match utx.clone().check() {
+		Ok(tx) => tx,
+		Err(_) => return Err(ApplyError::BadSignature),
+	};
+
+	let tx: ::Transfer = utx.transfer;
+
+	// check nonce
+	let nonce_key = tx.from.to_keyed_vec(NONCE_OF);
+	let expected_nonce: u64 = storage::get_or(&nonce_key, 0);
+	if !(tx.nonce == expected_nonce) {
+		return Err(ApplyError::Stale)
+	}
+
+	// increment nonce in storage
+	storage::put(&nonce_key, &(expected_nonce + 1));
+
+	// check sender balance
+	let from_balance_key = tx.from.to_keyed_vec(BALANCE_OF);
+	let from_balance: u64 = storage::get_or(&from_balance_key, 0);
+
+	// enact transfer
+	if !(tx.amount <= from_balance) {
+		return Err(ApplyError::CantPay)
+	}
+	let to_balance_key = tx.to.to_keyed_vec(BALANCE_OF);
+	let to_balance: u64 = storage::get_or(&to_balance_key, 0);
+	storage::put(&from_balance_key, &(from_balance - tx.amount));
+	storage::put(&to_balance_key, &(to_balance + tx.amount));
+	Ok(ApplyOutcome::Success)
+}
+
+#[cfg(feature = "std")]
+fn info_expect_equal_hash(given: &Hash, expected: &Hash) {
+	use primitives::hexdisplay::HexDisplay;
+	if given != expected {
+		println!("Hash: given={}, expected={}", HexDisplay::from(&given.0), HexDisplay::from(&expected.0));
+	}
+}
+
+#[cfg(not(feature = "std"))]
+fn info_expect_equal_hash(given: &Hash, expected: &Hash) {
+	if given != expected {
+		::runtime_io::print("Hash not equal");
+		::runtime_io::print(&given.0[..]);
+		::runtime_io::print(&expected.0[..]);
+	}
+}
+
+#[cfg(test)]
+mod tests {
+	use super::*;
+
+	use runtime_io::{with_externalities, twox_128, TestExternalities};
+	use codec::{Joiner, KeyedVec};
+	use keyring::Keyring;
+	use ::{Header, Digest, Extrinsic, Transfer};
+	use primitives::Blake2Hasher;
+
+	fn new_test_ext() -> TestExternalities<Blake2Hasher> {
+		map![
+			twox_128(b"latest").to_vec() => vec![69u8; 32],
+			twox_128(b":auth:len").to_vec() => vec![].and(&3u32),
+			twox_128(&0u32.to_keyed_vec(b":auth:")).to_vec() => Keyring::Alice.to_raw_public().to_vec(),
+			twox_128(&1u32.to_keyed_vec(b":auth:")).to_vec() => Keyring::Bob.to_raw_public().to_vec(),
+			twox_128(&2u32.to_keyed_vec(b":auth:")).to_vec() => Keyring::Charlie.to_raw_public().to_vec(),
+			twox_128(&Keyring::Alice.to_raw_public().to_keyed_vec(b"balance:")).to_vec() => vec![111u8, 0, 0, 0, 0, 0, 0, 0]
+		]
+	}
+
+	fn construct_signed_tx(tx: Transfer) -> Extrinsic {
+		let signature = Keyring::from_raw_public(tx.from.0).unwrap().sign(&tx.encode()).into();
+		Extrinsic { transfer: tx, signature }
+	}
+
+	#[test]
+	fn block_import_works() {
+		let mut t = new_test_ext();
+
+		let h = Header {
+			parent_hash: [69u8; 32].into(),
+			number: 1,
+			state_root: hex!("0c22599e15fb5e052c84f79a2aab179ba6bb238218fd86bdd4a74ebcc87adfcd").into(),
+			extrinsics_root: hex!("45b0cfc220ceec5b7c1c62c4d4193d38e4eba48e8815729ce75f9c0ab0e4c1c0").into(),
+			digest: Digest { logs: vec![], },
+		};
+
+		let b = Block {
+			header: h,
+			extrinsics: vec![],
+		};
+
+		with_externalities(&mut t, || {
+			execute_block(b);
+		});
+	}
+
+	#[test]
+	fn block_import_with_transaction_works() {
+		let mut t = new_test_ext();
+
+		with_externalities(&mut t, || {
+			assert_eq!(balance_of(Keyring::Alice.to_raw_public().into()), 111);
+			assert_eq!(balance_of(Keyring::Bob.to_raw_public().into()), 0);
+		});
+
+		let b = Block {
+			header: Header {
+				parent_hash: [69u8; 32].into(),
+				number: 1,
+				state_root: hex!("0425393fd07e2a806cfd7e990ee91dc92fe6bba34eab2bf45d5be7d67e24d467").into(),
+				extrinsics_root: hex!("83fd59e8fe7cee53d7421713a09fe0abae1aec5f4db94fe5193737b12195f013").into(),
+				digest: Digest { logs: vec![], },
+			},
+			extrinsics: vec![
+				construct_signed_tx(Transfer {
+					from: Keyring::Alice.to_raw_public().into(),
+					to: Keyring::Bob.to_raw_public().into(),
+					amount: 69,
+					nonce: 0,
+				})
+			],
+		};
+
+		with_externalities(&mut t, || {
+			execute_block(b.clone());
+
+			assert_eq!(balance_of(Keyring::Alice.to_raw_public().into()), 42);
+			assert_eq!(balance_of(Keyring::Bob.to_raw_public().into()), 69);
+		});
+
+		let b = Block {
+			header: Header {
+				parent_hash: b.header.hash(),
+				number: 2,
+				state_root: hex!("e32dd1d84d9133ca48078d2d83f2b0db19f9d47229ba98bf5ced0e9f86fac2c7").into(),
+				extrinsics_root: hex!("5d2d0a93201744f0df878c33b07da40cd38e24ac2358cc2811ea640835c31b68").into(),
+				digest: Digest { logs: vec![], },
+			},
+			extrinsics: vec![
+				construct_signed_tx(Transfer {
+					from: Keyring::Bob.to_raw_public().into(),
+					to: Keyring::Alice.to_raw_public().into(),
+					amount: 27,
+					nonce: 0,
+				}),
+				construct_signed_tx(Transfer {
+					from: Keyring::Alice.to_raw_public().into(),
+					to: Keyring::Charlie.to_raw_public().into(),
+					amount: 69,
+					nonce: 1,
+				}),
+			],
+		};
+
+		with_externalities(&mut t, || {
+			execute_block(b);
+
+			assert_eq!(balance_of(Keyring::Alice.to_raw_public().into()), 0);
+			assert_eq!(balance_of(Keyring::Bob.to_raw_public().into()), 42);
+			assert_eq!(balance_of(Keyring::Charlie.to_raw_public().into()), 69);
+		});
+	}
+}