From 987888e163bc7ca07e415518e46f61b5493ae22d Mon Sep 17 00:00:00 2001 From: Hernando Castano Date: Sun, 2 Feb 2020 22:13:28 -0500 Subject: [PATCH] RustFmt the repo (sorry not sorry) --- bridges/modules/ethereum/src/finality.rs | 23 +- bridges/modules/ethereum/src/import.rs | 107 ++---- bridges/modules/ethereum/src/lib.rs | 351 ++++++++++-------- bridges/modules/ethereum/src/validators.rs | 154 ++++---- bridges/modules/ethereum/src/verification.rs | 85 ++--- bridges/modules/substrate/src/lib.rs | 71 ++-- .../modules/substrate/src/storage_proof.rs | 20 +- bridges/primitives/ethereum-poa/src/lib.rs | 46 +-- 8 files changed, 439 insertions(+), 418 deletions(-) diff --git a/bridges/modules/ethereum/src/finality.rs b/bridges/modules/ethereum/src/finality.rs index 74c1660e8c6b..37e16d6ccd43 100644 --- a/bridges/modules/ethereum/src/finality.rs +++ b/bridges/modules/ethereum/src/finality.rs @@ -14,16 +14,16 @@ // You should have received a copy of the GNU General Public License // along with Parity-Bridge. If not, see . -use sp_std::prelude::*; +use crate::error::Error; +use crate::{ancestry, Storage}; +use primitives::{public_to_address, Address, Header, SealedEmptyStep, H256}; +use sp_io::crypto::secp256k1_ecdsa_recover; use sp_std::collections::{ btree_map::{BTreeMap, Entry}, btree_set::BTreeSet, vec_deque::VecDeque, }; -use sp_io::crypto::secp256k1_ecdsa_recover; -use primitives::{Address, H256, Header, SealedEmptyStep, public_to_address}; -use crate::{Storage, ancestry}; -use crate::error::Error; +use sp_std::prelude::*; /// Tries to finalize blocks when given block is imported. /// @@ -68,8 +68,8 @@ fn is_finalized( votes: &BTreeMap, requires_two_thirds_majority: bool, ) -> bool { - (!requires_two_thirds_majority && votes.len() * 2 > validators.len()) || - (requires_two_thirds_majority && votes.len() * 3 > validators.len() * 2) + (!requires_two_thirds_majority && votes.len() * 2 > validators.len()) + || (requires_two_thirds_majority && votes.len() * 3 > validators.len() * 2) } /// Prepare 'votes' of header and its ancestors' signers. @@ -157,7 +157,7 @@ fn remove_signers_votes(signers_to_remove: &BTreeSet
, votes: &mut BTree } else { *entry.get_mut() -= 1; } - }, + } Entry::Vacant(_) => unreachable!("we only remove signers that have been added; qed"), } } @@ -165,7 +165,8 @@ fn remove_signers_votes(signers_to_remove: &BTreeSet
, votes: &mut BTree /// Returns unique set of empty steps signers. fn empty_steps_signers(header: &Header) -> BTreeSet
{ - header.empty_steps() + header + .empty_steps() .into_iter() .flat_map(|steps| steps) .filter_map(|step| empty_step_signer(&step, &header.parent_hash)) @@ -182,9 +183,9 @@ fn empty_step_signer(empty_step: &SealedEmptyStep, parent_hash: &H256) -> Option #[cfg(test)] mod tests { - use crate::HeaderToImport; - use crate::tests::{InMemoryStorage, genesis, validator, validators_addresses}; use super::*; + use crate::tests::{genesis, validator, validators_addresses, InMemoryStorage}; + use crate::HeaderToImport; #[test] fn verifies_header_author() { diff --git a/bridges/modules/ethereum/src/import.rs b/bridges/modules/ethereum/src/import.rs index 318fea1bcc99..c11146526491 100644 --- a/bridges/modules/ethereum/src/import.rs +++ b/bridges/modules/ethereum/src/import.rs @@ -14,13 +14,13 @@ // You should have received a copy of the GNU General Public License // along with Parity-Bridge. If not, see . -use sp_std::prelude::*; -use primitives::{H256, Header, Receipt}; -use crate::{AuraConfiguration, Storage}; use crate::error::Error; use crate::finality::finalize_blocks; use crate::validators::{Validators, ValidatorsConfiguration}; use crate::verification::verify_aura_header; +use crate::{AuraConfiguration, Storage}; +use primitives::{Header, Receipt, H256}; +use sp_std::prelude::*; /// Maximal number of headers behind best blocks that we are aiming to store. When there /// are too many unfinalized headers, it slows down finalization tracking significantly. @@ -50,14 +50,7 @@ pub fn import_headers( let mut useful = 0; let mut useless = 0; for (header, receipts) in headers { - let import_result = import_header( - storage, - aura_config, - validators_config, - prune_depth, - header, - receipts, - ); + let import_result = import_header(storage, aura_config, validators_config, prune_depth, header, receipts); match import_result { Ok(_) => useful += 1, @@ -85,16 +78,11 @@ pub fn import_header( let (hash, prev_finalized_hash) = is_importable_header(storage, &header)?; // verify header - let import_context = verify_aura_header( - storage, - aura_config, - &header, - )?; + let import_context = verify_aura_header(storage, aura_config, &header)?; // check if block schedules new validators let validators = Validators::new(validators_config); - let (scheduled_change, enacted_change) = - validators.extract_validators_change(&header, receipts)?; + let (scheduled_change, enacted_change) = validators.extract_validators_change(&header, receipts)?; // check if block finalizes some other blocks and corresponding scheduled validators let finalized_blocks = finalize_blocks( @@ -105,8 +93,7 @@ pub fn import_header( &header, aura_config.two_thirds_majority_transition, )?; - let enacted_change = enacted_change - .or_else(|| validators.finalize_validators_change(storage, &finalized_blocks)); + let enacted_change = enacted_change.or_else(|| validators.finalize_validators_change(storage, &finalized_blocks)); // NOTE: we can't return Err() from anywhere below this line // (because otherwise we'll have inconsistent storage if transaction will fail) @@ -169,14 +156,12 @@ fn is_importable_header(storage: &S, header: &Header) -> Result<(H25 #[cfg(test)] mod tests { - use crate::{kovan_aura_config, kovan_validators_config}; + use super::*; use crate::tests::{ - InMemoryStorage, - block_i, custom_block_i, signed_header, genesis, - validator, validators_addresses, + block_i, custom_block_i, genesis, signed_header, validator, validators_addresses, InMemoryStorage, }; use crate::validators::ValidatorsSource; - use super::*; + use crate::{kovan_aura_config, kovan_validators_config}; #[test] fn rejects_finalized_block_competitors() { @@ -208,7 +193,8 @@ mod tests { PRUNE_DEPTH, block.clone(), None, - ).map(|_| ()), + ) + .map(|_| ()), Ok(()), ); assert_eq!( @@ -219,7 +205,8 @@ mod tests { PRUNE_DEPTH, block, None, - ).map(|_| ()), + ) + .map(|_| ()), Err(Error::KnownHeader), ); } @@ -235,8 +222,15 @@ mod tests { let header = block_i(&storage, 1, &validators); let hash = header.hash(); assert_eq!( - import_header(&mut storage, &kovan_aura_config(), &validators_config, PRUNE_DEPTH, header, None) - .map(|_| ()), + import_header( + &mut storage, + &kovan_aura_config(), + &validators_config, + PRUNE_DEPTH, + header, + None + ) + .map(|_| ()), Ok(()), ); @@ -250,9 +244,8 @@ mod tests { #[test] fn headers_are_pruned() { - let validators_config = ValidatorsConfiguration::Single( - ValidatorsSource::Contract([3; 20].into(), validators_addresses(3)), - ); + let validators_config = + ValidatorsConfiguration::Single(ValidatorsSource::Contract([3; 20].into(), validators_addresses(3))); let validators = vec![validator(0), validator(1), validator(2)]; let mut storage = InMemoryStorage::new(genesis(), validators_addresses(3)); @@ -261,14 +254,8 @@ mod tests { let mut last_block_hash = Default::default(); for i in 1..11 { let header = block_i(&storage, i, &validators); - last_block_hash = import_header( - &mut storage, - &kovan_aura_config(), - &validators_config, - 10, - header, - None, - ).unwrap(); + last_block_hash = + import_header(&mut storage, &kovan_aura_config(), &validators_config, 10, header, None).unwrap(); } assert!(storage.header(&genesis().hash()).is_some()); @@ -276,7 +263,9 @@ mod tests { // => we prune header#0 let header = custom_block_i(&storage, 11, &validators, |header| { header.log_bloom = (&[0xff; 256]).into(); - header.receipts_root = "2e60346495092587026484e868a5b3063749032b2ea3843844509a6320d7f951".parse().unwrap(); + header.receipts_root = "2e60346495092587026484e868a5b3063749032b2ea3843844509a6320d7f951" + .parse() + .unwrap(); }); last_block_hash = import_header( &mut storage, @@ -284,8 +273,11 @@ mod tests { &validators_config, 10, header, - Some(vec![crate::validators::tests::validators_change_recept(last_block_hash)]), - ).unwrap(); + Some(vec![crate::validators::tests::validators_change_recept( + last_block_hash, + )]), + ) + .unwrap(); assert!(storage.header(&genesis().hash()).is_none()); // and now let's say validators 1 && 2 went offline @@ -298,22 +290,13 @@ mod tests { parent_hash: last_block_hash, gas_limit: 0x2000.into(), author: validator(2).address().to_fixed_bytes().into(), - seal: vec![ - vec![step].into(), - vec![].into(), - ], + seal: vec![vec![step].into(), vec![].into()], difficulty: i.into(), ..Default::default() }; let header = signed_header(&validators, header, step as _); - last_block_hash = import_header( - &mut storage, - &kovan_aura_config(), - &validators_config, - 10, - header, - None, - ).unwrap(); + last_block_hash = + import_header(&mut storage, &kovan_aura_config(), &validators_config, 10, header, None).unwrap(); step += 3; } assert_eq!(storage.oldest_unpruned_block(), 11); @@ -326,22 +309,12 @@ mod tests { parent_hash: last_block_hash, gas_limit: 0x2000.into(), author: validator(0).address().to_fixed_bytes().into(), - seal: vec![ - vec![step].into(), - vec![].into(), - ], + seal: vec![vec![step].into(), vec![].into()], difficulty: 25.into(), ..Default::default() }; let header = signed_header(&validators, header, step as _); - import_header( - &mut storage, - &kovan_aura_config(), - &validators_config, - 10, - header, - None, - ).unwrap(); + import_header(&mut storage, &kovan_aura_config(), &validators_config, 10, header, None).unwrap(); assert_eq!(storage.oldest_unpruned_block(), 15); } } diff --git a/bridges/modules/ethereum/src/lib.rs b/bridges/modules/ethereum/src/lib.rs index e1135fad1386..26e36f8014cc 100644 --- a/bridges/modules/ethereum/src/lib.rs +++ b/bridges/modules/ethereum/src/lib.rs @@ -16,14 +16,14 @@ #![cfg_attr(not(feature = "std"), no_std)] -use sp_std::{prelude::*, iter::from_fn}; use codec::{Decode, Encode}; use frame_support::{decl_module, decl_storage}; +use primitives::{Address, Header, Receipt, H256, U256}; use sp_runtime::RuntimeDebug; -use primitives::{Address, U256, H256, Header, Receipt}; -use validators::{ValidatorsSource, ValidatorsConfiguration}; +use sp_std::{iter::from_fn, prelude::*}; +use validators::{ValidatorsConfiguration, ValidatorsSource}; -pub use import::{import_header, header_import_requires_receipts}; +pub use import::{header_import_requires_receipts, import_header}; mod error; mod finality; @@ -180,11 +180,7 @@ pub trait Storage { /// It is the storage duty to ensure that unfinalized headers that have /// scheduled changes won't be pruned until they or their competitors /// are finalized. - fn finalize_headers( - &mut self, - finalized: Option<(u64, H256)>, - prune_end: Option, - ); + fn finalize_headers(&mut self, finalized: Option<(u64, H256)>, prune_end: Option); } /// Decides whether the session should be ended. @@ -304,11 +300,7 @@ impl Module { /// Returns true if the import of given block requires transactions receipts. pub fn is_import_requires_receipts(header: Header) -> bool { - import::header_import_requires_receipts( - &BridgeStorage, - &kovan_validators_config(), - &header, - ) + import::header_import_requires_receipts(&BridgeStorage, &kovan_validators_config(), &header) } /// Returns true if header is known to the runtime. @@ -334,18 +326,17 @@ impl Storage for BridgeStorage { } fn import_context(&self, parent_hash: &H256) -> Option { - Headers::get(parent_hash) - .map(|parent_header| { - let (next_validators_set_start, next_validators) = - ValidatorsSets::get(parent_header.next_validators_set_id) + Headers::get(parent_hash).map(|parent_header| { + let (next_validators_set_start, next_validators) = + ValidatorsSets::get(parent_header.next_validators_set_id) .expect("validators set is only pruned when last ref is pruned; there is a ref; qed"); - ImportContext { - parent_header: parent_header.header, - parent_total_difficulty: parent_header.total_difficulty, - next_validators_set_id: parent_header.next_validators_set_id, - next_validators_set: (next_validators_set_start, next_validators), - } - }) + ImportContext { + parent_header: parent_header.header, + parent_total_difficulty: parent_header.total_difficulty, + next_validators_set_id: parent_header.next_validators_set_id, + next_validators_set: (next_validators_set_start, next_validators), + } + }) } fn scheduled_change(&self, hash: &H256) -> Option> { @@ -369,34 +360,33 @@ impl Storage for BridgeStorage { ValidatorsSets::insert(next_validators_set_id, (header.hash, enacted_change)); ValidatorsSetsRc::insert(next_validators_set_id, 1); next_validators_set_id - }, + } None => { - ValidatorsSetsRc::mutate( - header.context.next_validators_set_id, - |rc| { - *rc = Some(rc.map(|rc| rc + 1).unwrap_or(1)); - *rc - }, - ); + ValidatorsSetsRc::mutate(header.context.next_validators_set_id, |rc| { + *rc = Some(rc.map(|rc| rc + 1).unwrap_or(1)); + *rc + }); header.context.next_validators_set_id - }, + } }; HeadersByNumber::append_or_insert(header.header.number, vec![header.hash]); - Headers::insert(&header.hash, StoredHeader { - header: header.header, - total_difficulty: header.total_difficulty, - next_validators_set_id, - }); + Headers::insert( + &header.hash, + StoredHeader { + header: header.header, + total_difficulty: header.total_difficulty, + next_validators_set_id, + }, + ); } - fn finalize_headers( - &mut self, - finalized: Option<(u64, H256)>, - prune_end: Option, - ) { + fn finalize_headers(&mut self, finalized: Option<(u64, H256)>, prune_end: Option) { // remember just finalized block - let finalized_number = finalized.as_ref().map(|f| f.0).unwrap_or_else(|| FinalizedBlock::get().0); + let finalized_number = finalized + .as_ref() + .map(|f| f.0) + .unwrap_or_else(|| FinalizedBlock::get().0); if let Some(finalized) = finalized { FinalizedBlock::put(finalized); } @@ -423,13 +413,10 @@ impl Storage for BridgeStorage { let header = Headers::take(&hash); ScheduledChanges::remove(hash); if let Some(header) = header { - ValidatorsSetsRc::mutate( - header.next_validators_set_id, - |rc| match *rc { - Some(rc) if rc > 1 => Some(rc - 1), - _ => None, - }, - ); + ValidatorsSetsRc::mutate(header.next_validators_set_id, |rc| match *rc { + Some(rc) if rc > 1 => Some(rc - 1), + _ => None, + }); } } } @@ -456,50 +443,113 @@ pub fn kovan_aura_config() -> AuraConfiguration { /// Validators configuration for Kovan chain. pub fn kovan_validators_config() -> ValidatorsConfiguration { ValidatorsConfiguration::Multi(vec![ - (0, ValidatorsSource::List(vec![ - [0x00, 0xD6, 0xCc, 0x1B, 0xA9, 0xcf, 0x89, 0xBD, 0x2e, 0x58, - 0x00, 0x97, 0x41, 0xf4, 0xF7, 0x32, 0x5B, 0xAd, 0xc0, 0xED].into(), - [0x00, 0x42, 0x7f, 0xea, 0xe2, 0x41, 0x9c, 0x15, 0xb8, 0x9d, - 0x1c, 0x21, 0xaf, 0x10, 0xd1, 0xb6, 0x65, 0x0a, 0x4d, 0x3d].into(), - [0x4E, 0xd9, 0xB0, 0x8e, 0x63, 0x54, 0xC7, 0x0f, 0xE6, 0xF8, - 0xCB, 0x04, 0x11, 0xb0, 0xd3, 0x24, 0x6b, 0x42, 0x4d, 0x6c].into(), - [0x00, 0x20, 0xee, 0x4B, 0xe0, 0xe2, 0x02, 0x7d, 0x76, 0x60, - 0x3c, 0xB7, 0x51, 0xeE, 0x06, 0x95, 0x19, 0xbA, 0x81, 0xA1].into(), - [0x00, 0x10, 0xf9, 0x4b, 0x29, 0x6a, 0x85, 0x2a, 0xaa, 0xc5, - 0x2e, 0xa6, 0xc5, 0xac, 0x72, 0xe0, 0x3a, 0xfd, 0x03, 0x2d].into(), - [0x00, 0x77, 0x33, 0xa1, 0xFE, 0x69, 0xCF, 0x3f, 0x2C, 0xF9, - 0x89, 0xF8, 0x1C, 0x7b, 0x4c, 0xAc, 0x16, 0x93, 0x38, 0x7A].into(), - [0x00, 0xE6, 0xd2, 0xb9, 0x31, 0xF5, 0x5a, 0x3f, 0x17, 0x01, - 0xc7, 0x38, 0x9d, 0x59, 0x2a, 0x77, 0x78, 0x89, 0x78, 0x79].into(), - [0x00, 0xe4, 0xa1, 0x06, 0x50, 0xe5, 0xa6, 0xD6, 0x00, 0x1C, - 0x38, 0xff, 0x8E, 0x64, 0xF9, 0x70, 0x16, 0xa1, 0x64, 0x5c].into(), - [0x00, 0xa0, 0xa2, 0x4b, 0x9f, 0x0e, 0x5e, 0xc7, 0xaa, 0x4c, - 0x73, 0x89, 0xb8, 0x30, 0x2f, 0xd0, 0x12, 0x31, 0x94, 0xde].into(), - ])), - (10960440, ValidatorsSource::List(vec![ - [0x00, 0xD6, 0xCc, 0x1B, 0xA9, 0xcf, 0x89, 0xBD, 0x2e, 0x58, - 0x00, 0x97, 0x41, 0xf4, 0xF7, 0x32, 0x5B, 0xAd, 0xc0, 0xED].into(), - [0x00, 0x10, 0xf9, 0x4b, 0x29, 0x6a, 0x85, 0x2a, 0xaa, 0xc5, - 0x2e, 0xa6, 0xc5, 0xac, 0x72, 0xe0, 0x3a, 0xfd, 0x03, 0x2d].into(), - [0x00, 0xa0, 0xa2, 0x4b, 0x9f, 0x0e, 0x5e, 0xc7, 0xaa, 0x4c, - 0x73, 0x89, 0xb8, 0x30, 0x2f, 0xd0, 0x12, 0x31, 0x94, 0xde].into(), - ])), - (10960500, ValidatorsSource::Contract( - [0xaE, 0x71, 0x80, 0x7C, 0x1B, 0x0a, 0x09, 0x3c, 0xB1, 0x54, - 0x7b, 0x68, 0x2D, 0xC7, 0x83, 0x16, 0xD9, 0x45, 0xc9, 0xB8].into(), - vec![ - [0xd0, 0x5f, 0x74, 0x78, 0xc6, 0xaa, 0x10, 0x78, 0x12, 0x58, - 0xc5, 0xcc, 0x8b, 0x4f, 0x38, 0x5f, 0xc8, 0xfa, 0x98, 0x9c].into(), - [0x03, 0x80, 0x1e, 0xfb, 0x0e, 0xfe, 0x2a, 0x25, 0xed, 0xe5, - 0xdd, 0x3a, 0x00, 0x3a, 0xe8, 0x80, 0xc0, 0x29, 0x2e, 0x4d].into(), - [0xa4, 0xdf, 0x25, 0x5e, 0xcf, 0x08, 0xbb, 0xf2, 0xc2, 0x80, - 0x55, 0xc6, 0x52, 0x25, 0xc9, 0xa9, 0x84, 0x7a, 0xbd, 0x94].into(), - [0x59, 0x6e, 0x82, 0x21, 0xa3, 0x0b, 0xfe, 0x6e, 0x7e, 0xff, - 0x67, 0xfe, 0xe6, 0x64, 0xa0, 0x1c, 0x73, 0xba, 0x3c, 0x56].into(), - [0xfa, 0xad, 0xfa, 0xce, 0x3f, 0xbd, 0x81, 0xce, 0x37, 0xb0, - 0xe1, 0x9c, 0x0b, 0x65, 0xff, 0x42, 0x34, 0x14, 0x81, 0x32].into(), - ], - )), + ( + 0, + ValidatorsSource::List(vec![ + [ + 0x00, 0xD6, 0xCc, 0x1B, 0xA9, 0xcf, 0x89, 0xBD, 0x2e, 0x58, 0x00, 0x97, 0x41, 0xf4, 0xF7, 0x32, + 0x5B, 0xAd, 0xc0, 0xED, + ] + .into(), + [ + 0x00, 0x42, 0x7f, 0xea, 0xe2, 0x41, 0x9c, 0x15, 0xb8, 0x9d, 0x1c, 0x21, 0xaf, 0x10, 0xd1, 0xb6, + 0x65, 0x0a, 0x4d, 0x3d, + ] + .into(), + [ + 0x4E, 0xd9, 0xB0, 0x8e, 0x63, 0x54, 0xC7, 0x0f, 0xE6, 0xF8, 0xCB, 0x04, 0x11, 0xb0, 0xd3, 0x24, + 0x6b, 0x42, 0x4d, 0x6c, + ] + .into(), + [ + 0x00, 0x20, 0xee, 0x4B, 0xe0, 0xe2, 0x02, 0x7d, 0x76, 0x60, 0x3c, 0xB7, 0x51, 0xeE, 0x06, 0x95, + 0x19, 0xbA, 0x81, 0xA1, + ] + .into(), + [ + 0x00, 0x10, 0xf9, 0x4b, 0x29, 0x6a, 0x85, 0x2a, 0xaa, 0xc5, 0x2e, 0xa6, 0xc5, 0xac, 0x72, 0xe0, + 0x3a, 0xfd, 0x03, 0x2d, + ] + .into(), + [ + 0x00, 0x77, 0x33, 0xa1, 0xFE, 0x69, 0xCF, 0x3f, 0x2C, 0xF9, 0x89, 0xF8, 0x1C, 0x7b, 0x4c, 0xAc, + 0x16, 0x93, 0x38, 0x7A, + ] + .into(), + [ + 0x00, 0xE6, 0xd2, 0xb9, 0x31, 0xF5, 0x5a, 0x3f, 0x17, 0x01, 0xc7, 0x38, 0x9d, 0x59, 0x2a, 0x77, + 0x78, 0x89, 0x78, 0x79, + ] + .into(), + [ + 0x00, 0xe4, 0xa1, 0x06, 0x50, 0xe5, 0xa6, 0xD6, 0x00, 0x1C, 0x38, 0xff, 0x8E, 0x64, 0xF9, 0x70, + 0x16, 0xa1, 0x64, 0x5c, + ] + .into(), + [ + 0x00, 0xa0, 0xa2, 0x4b, 0x9f, 0x0e, 0x5e, 0xc7, 0xaa, 0x4c, 0x73, 0x89, 0xb8, 0x30, 0x2f, 0xd0, + 0x12, 0x31, 0x94, 0xde, + ] + .into(), + ]), + ), + ( + 10960440, + ValidatorsSource::List(vec![ + [ + 0x00, 0xD6, 0xCc, 0x1B, 0xA9, 0xcf, 0x89, 0xBD, 0x2e, 0x58, 0x00, 0x97, 0x41, 0xf4, 0xF7, 0x32, + 0x5B, 0xAd, 0xc0, 0xED, + ] + .into(), + [ + 0x00, 0x10, 0xf9, 0x4b, 0x29, 0x6a, 0x85, 0x2a, 0xaa, 0xc5, 0x2e, 0xa6, 0xc5, 0xac, 0x72, 0xe0, + 0x3a, 0xfd, 0x03, 0x2d, + ] + .into(), + [ + 0x00, 0xa0, 0xa2, 0x4b, 0x9f, 0x0e, 0x5e, 0xc7, 0xaa, 0x4c, 0x73, 0x89, 0xb8, 0x30, 0x2f, 0xd0, + 0x12, 0x31, 0x94, 0xde, + ] + .into(), + ]), + ), + ( + 10960500, + ValidatorsSource::Contract( + [ + 0xaE, 0x71, 0x80, 0x7C, 0x1B, 0x0a, 0x09, 0x3c, 0xB1, 0x54, 0x7b, 0x68, 0x2D, 0xC7, 0x83, 0x16, + 0xD9, 0x45, 0xc9, 0xB8, + ] + .into(), + vec![ + [ + 0xd0, 0x5f, 0x74, 0x78, 0xc6, 0xaa, 0x10, 0x78, 0x12, 0x58, 0xc5, 0xcc, 0x8b, 0x4f, 0x38, 0x5f, + 0xc8, 0xfa, 0x98, 0x9c, + ] + .into(), + [ + 0x03, 0x80, 0x1e, 0xfb, 0x0e, 0xfe, 0x2a, 0x25, 0xed, 0xe5, 0xdd, 0x3a, 0x00, 0x3a, 0xe8, 0x80, + 0xc0, 0x29, 0x2e, 0x4d, + ] + .into(), + [ + 0xa4, 0xdf, 0x25, 0x5e, 0xcf, 0x08, 0xbb, 0xf2, 0xc2, 0x80, 0x55, 0xc6, 0x52, 0x25, 0xc9, 0xa9, + 0x84, 0x7a, 0xbd, 0x94, + ] + .into(), + [ + 0x59, 0x6e, 0x82, 0x21, 0xa3, 0x0b, 0xfe, 0x6e, 0x7e, 0xff, 0x67, 0xfe, 0xe6, 0x64, 0xa0, 0x1c, + 0x73, 0xba, 0x3c, 0x56, + ] + .into(), + [ + 0xfa, 0xad, 0xfa, 0xce, 0x3f, 0xbd, 0x81, 0xce, 0x37, 0xb0, 0xe1, 0x9c, 0x0b, 0x65, 0xff, 0x42, + 0x34, 0x14, 0x81, 0x32, + ] + .into(), + ], + ), + ), ]) } @@ -517,25 +567,22 @@ pub(crate) fn ancestry<'a, S: Storage>(storage: &'a S, header: &Header) -> impl let hash = parent_hash.clone(); parent_hash = header.parent_hash.clone(); Some((hash, header)) - }, - None => None + } + None => None, } }) } #[cfg(test)] pub(crate) mod tests { - use std::collections::{HashMap, hash_map::Entry}; - use parity_crypto::publickey::{KeyPair, Secret, sign}; - use primitives::{H520, rlp_encode}; use super::*; + use parity_crypto::publickey::{sign, KeyPair, Secret}; + use primitives::{rlp_encode, H520}; + use std::collections::{hash_map::Entry, HashMap}; pub fn genesis() -> Header { Header { - seal: vec![ - vec![42].into(), - vec![].into(), - ], + seal: vec![vec![42].into(), vec![].into()], ..Default::default() } } @@ -556,10 +603,7 @@ pub(crate) mod tests { parent_hash: storage.headers_by_number[&(number - 1)][0].clone(), gas_limit: 0x2000.into(), author: validator(validator_index).address().to_fixed_bytes().into(), - seal: vec![ - vec![number as u8 + 42].into(), - vec![].into(), - ], + seal: vec![vec![number as u8 + 42].into(), vec![].into()], difficulty: number.into(), ..Default::default() }; @@ -582,7 +626,9 @@ pub(crate) mod tests { } pub fn validators_addresses(count: u8) -> Vec
{ - (0..count as usize).map(|i| validator(i as u8).address().as_fixed_bytes().into()).collect() + (0..count as usize) + .map(|i| validator(i as u8).address().as_fixed_bytes().into()) + .collect() } pub struct InMemoryStorage { @@ -612,7 +658,9 @@ pub(crate) mod tests { total_difficulty: 0.into(), next_validators_set_id: 0, }, - )].into_iter().collect(), + )] + .into_iter() + .collect(), next_validators_set_id: 1, validators_sets: vec![(0, (hash, initial_validators))].into_iter().collect(), validators_sets_rc: vec![(0, 1)].into_iter().collect(), @@ -643,17 +691,16 @@ pub(crate) mod tests { } fn import_context(&self, parent_hash: &H256) -> Option { - self.headers.get(parent_hash) - .map(|parent_header| { - let (next_validators_set_start, next_validators) = - self.validators_sets.get(&parent_header.next_validators_set_id).unwrap(); - ImportContext { - parent_header: parent_header.header.clone(), - parent_total_difficulty: parent_header.total_difficulty, - next_validators_set_id: parent_header.next_validators_set_id, - next_validators_set: (*next_validators_set_start, next_validators.clone()), - } - }) + self.headers.get(parent_hash).map(|parent_header| { + let (next_validators_set_start, next_validators) = + self.validators_sets.get(&parent_header.next_validators_set_id).unwrap(); + ImportContext { + parent_header: parent_header.header.clone(), + parent_total_difficulty: parent_header.total_difficulty, + next_validators_set_id: parent_header.next_validators_set_id, + next_validators_set: (*next_validators_set_start, next_validators.clone()), + } + }) } fn scheduled_change(&self, hash: &H256) -> Option> { @@ -671,30 +718,39 @@ pub(crate) mod tests { Some(enacted_change) => { let next_validators_set_id = self.next_validators_set_id; self.next_validators_set_id += 1; - self.validators_sets.insert(next_validators_set_id, (header.hash, enacted_change)); + self.validators_sets + .insert(next_validators_set_id, (header.hash, enacted_change)); self.validators_sets_rc.insert(next_validators_set_id, 1); next_validators_set_id - }, + } None => { - *self.validators_sets_rc.entry(header.context.next_validators_set_id).or_default() += 1; + *self + .validators_sets_rc + .entry(header.context.next_validators_set_id) + .or_default() += 1; header.context.next_validators_set_id - }, + } }; - self.headers_by_number.entry(header.header.number).or_default().push(header.hash); - self.headers.insert(header.hash, StoredHeader { - header: header.header, - total_difficulty: header.total_difficulty, - next_validators_set_id, - }); + self.headers_by_number + .entry(header.header.number) + .or_default() + .push(header.hash); + self.headers.insert( + header.hash, + StoredHeader { + header: header.header, + total_difficulty: header.total_difficulty, + next_validators_set_id, + }, + ); } - fn finalize_headers( - &mut self, - finalized: Option<(u64, H256)>, - prune_end: Option, - ) { - let finalized_number = finalized.as_ref().map(|f| f.0).unwrap_or_else(|| self.finalized_block.0); + fn finalize_headers(&mut self, finalized: Option<(u64, H256)>, prune_end: Option) { + let finalized_number = finalized + .as_ref() + .map(|f| f.0) + .unwrap_or_else(|| self.finalized_block.0); if let Some(finalized) = finalized { self.finalized_block = finalized; } @@ -708,7 +764,10 @@ pub(crate) mod tests { // ensure that unfinalized headers we want to prune do not have scheduled changes if number > finalized_number { if let Some(ref blocks_at_number) = blocks_at_number { - if blocks_at_number.iter().any(|block| self.scheduled_changes.contains_key(block)) { + if blocks_at_number + .iter() + .any(|block| self.scheduled_changes.contains_key(block)) + { self.headers_by_number.insert(number, blocks_at_number.clone()); self.oldest_unpruned_block = number; return; @@ -722,12 +781,14 @@ pub(crate) mod tests { self.scheduled_changes.remove(&hash); if let Some(header) = header { match self.validators_sets_rc.entry(header.next_validators_set_id) { - Entry::Occupied(mut entry) => if *entry.get() == 1 { - entry.remove(); - } else { - *entry.get_mut() -= 1; - }, - Entry::Vacant(_) => unreachable!("there's entry for each header") + Entry::Occupied(mut entry) => { + if *entry.get() == 1 { + entry.remove(); + } else { + *entry.get_mut() -= 1; + } + } + Entry::Vacant(_) => unreachable!("there's entry for each header"), }; } } diff --git a/bridges/modules/ethereum/src/validators.rs b/bridges/modules/ethereum/src/validators.rs index db1eacd3b331..0860f807ffdd 100644 --- a/bridges/modules/ethereum/src/validators.rs +++ b/bridges/modules/ethereum/src/validators.rs @@ -14,15 +14,16 @@ // You should have received a copy of the GNU General Public License // along with Parity-Bridge. If not, see . -use sp_std::prelude::*; -use primitives::{Address, H256, Header, LogEntry, Receipt, U256}; -use crate::Storage; use crate::error::Error; +use crate::Storage; +use primitives::{Address, Header, LogEntry, Receipt, H256, U256}; +use sp_std::prelude::*; /// The hash of InitiateChange event of the validators set contract. -const CHANGE_EVENT_HASH: &'static [u8; 32] = &[0x55, 0x25, 0x2f, 0xa6, 0xee, 0xe4, 0x74, 0x1b, - 0x4e, 0x24, 0xa7, 0x4a, 0x70, 0xe9, 0xc1, 0x1f, 0xd2, 0xc2, 0x28, 0x1d, 0xf8, 0xd6, 0xea, - 0x13, 0x12, 0x6f, 0xf8, 0x45, 0xf7, 0x82, 0x5c, 0x89]; +const CHANGE_EVENT_HASH: &'static [u8; 32] = &[ + 0x55, 0x25, 0x2f, 0xa6, 0xee, 0xe4, 0x74, 0x1b, 0x4e, 0x24, 0xa7, 0x4a, 0x70, 0xe9, 0xc1, 0x1f, 0xd2, 0xc2, 0x28, + 0x1d, 0xf8, 0xd6, 0xea, 0x13, 0x12, 0x6f, 0xf8, 0x45, 0xf7, 0x82, 0x5c, 0x89, +]; /// Where source of validators addresses come from. This covers the chain lifetime. pub enum ValidatorsConfiguration { @@ -76,12 +77,10 @@ impl<'a> Validators<'a> { // that the contract has (probably) emitted epoch change event let expected_bloom = LogEntry { address: *contract_address, - topics: vec![ - CHANGE_EVENT_HASH.into(), - header.parent_hash, - ], + topics: vec![CHANGE_EVENT_HASH.into(), header.parent_hash], data: Vec::new(), // irrelevant for bloom. - }.bloom(); + } + .bloom(); header.log_bloom.contains(&expected_bloom) } @@ -120,12 +119,10 @@ impl<'a> Validators<'a> { // that the contract has (probably) emitted epoch change event let expected_bloom = LogEntry { address: *contract_address, - topics: vec![ - CHANGE_EVENT_HASH.into(), - header.parent_hash, - ], + topics: vec![CHANGE_EVENT_HASH.into(), header.parent_hash], data: Vec::new(), // irrelevant for bloom. - }.bloom(); + } + .bloom(); if !header.log_bloom.contains(&expected_bloom) { return Ok((None, None)); @@ -138,41 +135,47 @@ impl<'a> Validators<'a> { // iterate in reverse because only the _last_ change in a given // block actually has any effect - Ok((receipts.iter() - .rev() - .filter(|r| r.log_bloom.contains(&expected_bloom)) - .flat_map(|r| r.logs.iter()) - .filter(|l| l.address == *contract_address && - l.topics.len() == 2 && - l.topics[0].as_fixed_bytes() == CHANGE_EVENT_HASH && - l.topics[1] == header.parent_hash - ) - .filter_map(|l| { - let data_len = l.data.len(); - if data_len < 64 { - return None; - } + Ok(( + receipts + .iter() + .rev() + .filter(|r| r.log_bloom.contains(&expected_bloom)) + .flat_map(|r| r.logs.iter()) + .filter(|l| { + l.address == *contract_address + && l.topics.len() == 2 && l.topics[0].as_fixed_bytes() == CHANGE_EVENT_HASH + && l.topics[1] == header.parent_hash + }) + .filter_map(|l| { + let data_len = l.data.len(); + if data_len < 64 { + return None; + } - let new_validators_len_u256 = U256::from_big_endian(&l.data[32..64]); - let new_validators_len = new_validators_len_u256.low_u64(); - if new_validators_len_u256 != new_validators_len.into() { - return None; - } + let new_validators_len_u256 = U256::from_big_endian(&l.data[32..64]); + let new_validators_len = new_validators_len_u256.low_u64(); + if new_validators_len_u256 != new_validators_len.into() { + return None; + } - if (data_len - 64) as u64 != new_validators_len.saturating_mul(32) { - return None; - } + if (data_len - 64) as u64 != new_validators_len.saturating_mul(32) { + return None; + } - Some(l.data[64..] - .chunks(32) - .map(|chunk| { - let mut new_validator = Address::default(); - new_validator.as_mut().copy_from_slice(&chunk[12..32]); - new_validator - }) - .collect()) - }) - .next(), None)) + Some( + l.data[64..] + .chunks(32) + .map(|chunk| { + let mut new_validator = Address::default(); + new_validator.as_mut().copy_from_slice(&chunk[12..32]); + new_validator + }) + .collect(), + ) + }) + .next(), + None, + )) } /// Finalize changes when blocks are finalized. @@ -193,12 +196,16 @@ impl<'a> Validators<'a> { fn source_at<'b>(&'b self, header_number: u64) -> (usize, u64, &'b ValidatorsSource) { match self.config { ValidatorsConfiguration::Single(ref source) => (0, 0, source), - ValidatorsConfiguration::Multi(ref sources) => sources.iter().rev() + ValidatorsConfiguration::Multi(ref sources) => sources + .iter() + .rev() .enumerate() .find(|(_, &(begin, _))| begin < header_number) .map(|(i, (begin, source))| (sources.len() - 1 - i, *begin, source)) - .expect("there's always entry for the initial block;\ - we do not touch any headers with number < initial block number; qed"), + .expect( + "there's always entry for the initial block;\ + we do not touch any headers with number < initial block number; qed", + ), } } @@ -221,7 +228,7 @@ impl<'a> Validators<'a> { let source = &sources[header_source_index]; (source.0, &source.1) - }, + } } } } @@ -243,32 +250,24 @@ pub fn step_validator(header_validators: &[Address], header_step: u64) -> Addres #[cfg(test)] pub(crate) mod tests { - use primitives::TransactionOutcome; - use crate::kovan_validators_config; use super::*; + use crate::kovan_validators_config; + use primitives::TransactionOutcome; pub(crate) fn validators_change_recept(parent_hash: H256) -> Receipt { Receipt { gas_used: 0.into(), log_bloom: (&[0xff; 256]).into(), outcome: TransactionOutcome::Unknown, - logs: vec![ - LogEntry { - address: [3; 20].into(), - topics: vec![ - CHANGE_EVENT_HASH.into(), - parent_hash, - ], - data: vec![ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - ], - }, - ], + logs: vec![LogEntry { + address: [3; 20].into(), + topics: vec![CHANGE_EVENT_HASH.into(), parent_hash], + data: vec![ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + ], + }], } } @@ -347,10 +346,7 @@ pub(crate) mod tests { // when we're inside list range header.number = 150; - assert_eq!( - validators.extract_validators_change(&header, None), - Ok((None, None)), - ); + assert_eq!(validators.extract_validators_change(&header, None), Ok((None, None)),); // when we're at the block that switches to contract source header.number = 200; @@ -370,7 +366,9 @@ pub(crate) mod tests { // when we're inside contract range and logs bloom signals change // but there's no change in receipts - header.receipts_root = "56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421".parse().unwrap(); + header.receipts_root = "56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421" + .parse() + .unwrap(); assert_eq!( validators.extract_validators_change(&header, Some(Vec::new())), Ok((None, None)), @@ -379,7 +377,9 @@ pub(crate) mod tests { // when we're inside contract range and logs bloom signals change // and there's change in receipts let receipts = vec![validators_change_recept(Default::default())]; - header.receipts_root = "81ce88dc524403b796222046bf3daf543978329b87ffd50228f1d3987031dc45".parse().unwrap(); + header.receipts_root = "81ce88dc524403b796222046bf3daf543978329b87ffd50228f1d3987031dc45" + .parse() + .unwrap(); assert_eq!( validators.extract_validators_change(&header, Some(receipts)), Ok((Some(vec![[7; 20].into()]), None)), diff --git a/bridges/modules/ethereum/src/verification.rs b/bridges/modules/ethereum/src/verification.rs index 10574db32764..09de275877cb 100644 --- a/bridges/modules/ethereum/src/verification.rs +++ b/bridges/modules/ethereum/src/verification.rs @@ -14,11 +14,11 @@ // You should have received a copy of the GNU General Public License // along with Parity-Bridge. If not, see . -use sp_io::crypto::secp256k1_ecdsa_recover; -use primitives::{Address, Header, H256, H520, SealedEmptyStep, U128, U256, public_to_address}; -use crate::{AuraConfiguration, ImportContext, Storage}; use crate::error::Error; use crate::validators::step_validator; +use crate::{AuraConfiguration, ImportContext, Storage}; +use primitives::{public_to_address, Address, Header, SealedEmptyStep, H256, H520, U128, U256}; +use sp_io::crypto::secp256k1_ecdsa_recover; /// Verify header by Aura rules. pub fn verify_aura_header( @@ -30,14 +30,15 @@ pub fn verify_aura_header( contextless_checks(params, header)?; // the rest of checks requires parent - let context = storage.import_context(&header.parent_hash).ok_or(Error::MissingParentBlock)?; + let context = storage + .import_context(&header.parent_hash) + .ok_or(Error::MissingParentBlock)?; let validators = context.validators(); let header_step = header.step().ok_or(Error::MissingStep)?; let parent_step = context.parent_header().step().ok_or(Error::MissingStep)?; // Ensure header is from the step after context. - if header_step == parent_step - || (header.number >= params.validate_step_transition && header_step <= parent_step) { + if header_step == parent_step || (header.number >= params.validate_step_transition && header_step <= parent_step) { return Err(Error::DoubleVote); } @@ -69,7 +70,7 @@ pub fn verify_aura_header( } empty_steps_len - }, + } false => 0, }; @@ -160,20 +161,22 @@ fn verify_signature(expected_validator: &Address, signature: &H520, message: &H2 #[cfg(test)] mod tests { - use parity_crypto::publickey::{KeyPair, sign}; - use primitives::{H520, rlp_encode}; - use crate::kovan_aura_config; - use crate::tests::{InMemoryStorage, genesis, signed_header, validator, validators_addresses}; use super::*; + use crate::kovan_aura_config; + use crate::tests::{genesis, signed_header, validator, validators_addresses, InMemoryStorage}; + use parity_crypto::publickey::{sign, KeyPair}; + use primitives::{rlp_encode, H520}; fn sealed_empty_step(validators: &[KeyPair], parent_hash: &H256, step: u64) -> SealedEmptyStep { - let mut empty_step = SealedEmptyStep { step, signature: Default::default() }; + let mut empty_step = SealedEmptyStep { + step, + signature: Default::default(), + }; let message = empty_step.message(parent_hash); let validator_index = (step % validators.len() as u64) as usize; - let signature: [u8; 65] = sign( - validators[validator_index].secret(), - &message.as_fixed_bytes().into(), - ).unwrap().into(); + let signature: [u8; 65] = sign(validators[validator_index].secret(), &message.as_fixed_bytes().into()) + .unwrap() + .into(); empty_step.signature = signature.into(); empty_step } @@ -321,17 +324,11 @@ mod tests { assert_eq!(default_verify(&header), Err(Error::MissingStep)); // when step is the same as for the parent block - header.seal = vec![ - vec![42].into(), - vec![].into(), - ]; + header.seal = vec![vec![42].into(), vec![].into()]; assert_eq!(default_verify(&header), Err(Error::DoubleVote)); // when step is OK - header.seal = vec![ - vec![43].into(), - vec![].into(), - ]; + header.seal = vec![vec![43].into(), vec![].into()]; assert_ne!(default_verify(&header), Err(Error::DoubleVote)); // now check with validate_step check enabled @@ -339,17 +336,11 @@ mod tests { config.validate_step_transition = 0; // when step is lesser that for the parent block - header.seal = vec![ - vec![40].into(), - vec![].into(), - ]; + header.seal = vec![vec![40].into(), vec![].into()]; assert_eq!(verify_with_config(&config, &header), Err(Error::DoubleVote)); // when step is OK - header.seal = vec![ - vec![44].into(), - vec![].into(), - ]; + header.seal = vec![vec![44].into(), vec![].into()]; assert_ne!(verify_with_config(&config, &header), Err(Error::DoubleVote)); } @@ -364,9 +355,7 @@ mod tests { seal: vec![ vec![45].into(), vec![142].into(), - SealedEmptyStep::rlp_of(&[ - sealed_empty_step(&validators, &genesis().hash(), 42), - ]), + SealedEmptyStep::rlp_of(&[sealed_empty_step(&validators, &genesis().hash(), 42)]), ], gas_limit: kovan_aura_config().min_gas_limit, parent_hash: genesis().hash(), @@ -403,10 +392,7 @@ mod tests { // when chain score is invalid let mut header = Header { - seal: vec![ - vec![43].into(), - vec![].into(), - ], + seal: vec![vec![43].into(), vec![].into()], gas_limit: kovan_aura_config().min_gas_limit, parent_hash: genesis().hash(), ..Default::default() @@ -421,16 +407,17 @@ mod tests { #[test] fn verifies_validator() { let validators = vec![validator(0), validator(1), validator(2)]; - let good_header = signed_header(&validators, Header { - author: validators[1].address().as_fixed_bytes().into(), - seal: vec![ - vec![43].into(), - vec![].into(), - ], - gas_limit: kovan_aura_config().min_gas_limit, - parent_hash: genesis().hash(), - ..Default::default() - }, 43); + let good_header = signed_header( + &validators, + Header { + author: validators[1].address().as_fixed_bytes().into(), + seal: vec![vec![43].into(), vec![].into()], + gas_limit: kovan_aura_config().min_gas_limit, + parent_hash: genesis().hash(), + ..Default::default() + }, + 43, + ); // when header author is invalid let mut header = good_header.clone(); diff --git a/bridges/modules/substrate/src/lib.rs b/bridges/modules/substrate/src/lib.rs index b66e5f610e07..ca3fe2839a56 100644 --- a/bridges/modules/substrate/src/lib.rs +++ b/bridges/modules/substrate/src/lib.rs @@ -37,14 +37,14 @@ mod storage_proof; use crate::storage_proof::{StorageProof, StorageProofChecker}; -use codec::{Encode, Decode}; -use sp_finality_grandpa::{AuthorityId, AuthorityWeight, GRANDPA_AUTHORITIES_KEY}; -use sp_runtime::traits::Header; +use codec::{Decode, Encode}; use frame_support::{ - dispatch::{DispatchResult, DispatchError}, decl_error, decl_module, decl_storage, + dispatch::{DispatchError, DispatchResult}, }; use frame_system::{self as system, ensure_signed}; +use sp_finality_grandpa::{AuthorityId, AuthorityWeight, GRANDPA_AUTHORITIES_KEY}; +use sp_runtime::traits::Header; use storage_proof::Error as StorageError; #[derive(Encode, Decode, Clone, PartialEq)] @@ -58,12 +58,11 @@ pub struct BridgeInfo { impl BridgeInfo { pub fn new( - block_number: &T::BlockNumber, - block_hash: &T::Hash, - state_root: &T::Hash, - validator_set: Vec<(AuthorityId, AuthorityWeight)>, - ) -> Self - { + block_number: &T::BlockNumber, + block_hash: &T::Hash, + state_root: &T::Hash, + validator_set: Vec<(AuthorityId, AuthorityWeight)>, + ) -> Self { // I don't like how this is done, should come back to... BridgeInfo { last_finalized_block_number: *block_number, @@ -140,11 +139,8 @@ impl Module { proof: StorageProof, validator_set: &Vec<(AuthorityId, AuthorityWeight)>, ) -> DispatchResult { - - let checker = ::Hasher>>::new( - *state_root, - proof.clone() - ); + let checker = + ::Hasher>>::new(*state_root, proof.clone()); let checker = checker.map_err(Self::map_storage_err)?; @@ -152,7 +148,9 @@ impl Module { // with the stuff we get out of storage via `read_value` let encoded_validator_set = validator_set.encode(); - let c = checker.read_value(GRANDPA_AUTHORITIES_KEY).map_err(Self::map_storage_err)?; + let c = checker + .read_value(GRANDPA_AUTHORITIES_KEY) + .map_err(Self::map_storage_err)?; let actual_validator_set = c.ok_or(Error::::StorageValueUnavailable)?; if encoded_validator_set == actual_validator_set { @@ -182,7 +180,7 @@ impl Module { parent_hash = header.parent_hash(); if *parent_hash == ancestor_hash { - return Ok(()) + return Ok(()); } } @@ -193,7 +191,8 @@ impl Module { match e { StorageError::StorageRootMismatch => Error::::StorageRootMismatch, StorageError::StorageValueUnavailable => Error::::StorageValueUnavailable, - }.into() + } + .into() } } @@ -201,11 +200,14 @@ impl Module { mod tests { use super::*; - use sp_core::{Blake2Hasher, H256, Public}; + use frame_support::{assert_err, assert_ok, impl_outer_origin, parameter_types}; + use sp_core::{Blake2Hasher, Public, H256}; use sp_runtime::{ - Perbill, traits::{Header as HeaderT, IdentityLookup}, testing::Header, generic::Digest, + generic::Digest, + testing::Header, + traits::{Header as HeaderT, IdentityLookup}, + Perbill, }; - use frame_support::{assert_ok, assert_err, impl_outer_origin, parameter_types}; impl_outer_origin! { pub enum Origin for Test where system = frame_system {} @@ -251,9 +253,7 @@ mod tests { fn new_test_ext() -> sp_io::TestExternalities { let mut t = system::GenesisConfig::default().build_storage::().unwrap(); - GenesisConfig { - num_bridges: 0, - }.assimilate_storage(&mut t).unwrap(); + GenesisConfig { num_bridges: 0 }.assimilate_storage(&mut t).unwrap(); t.into() } @@ -273,14 +273,15 @@ mod tests { } fn create_dummy_validator_proof(validator_set: Vec<(AuthorityId, AuthorityWeight)>) -> (H256, StorageProof) { - use sp_state_machine::{prove_read, backend::Backend, InMemoryBackend}; + use sp_state_machine::{backend::Backend, prove_read, InMemoryBackend}; let encoded_set = validator_set.encode(); // construct storage proof - let backend = >::from(vec![ - (None, vec![(GRANDPA_AUTHORITIES_KEY.to_vec(), Some(encoded_set))]), - ]); + let backend = >::from(vec![( + None, + vec![(GRANDPA_AUTHORITIES_KEY.to_vec(), Some(encoded_set))], + )]); let root = backend.storage_root(std::iter::empty()).0; // Generates a storage read proof @@ -332,12 +333,11 @@ mod tests { new_test_ext().execute_with(|| { assert_eq!(MockBridge::num_bridges(), 0); dbg!(&test_header); - assert_ok!( - MockBridge::initialize_bridge( - Origin::signed(1), - test_header, - authorities.clone(), - proof, + assert_ok!(MockBridge::initialize_bridge( + Origin::signed(1), + test_header, + authorities.clone(), + proof, )); assert_eq!( @@ -347,7 +347,8 @@ mod tests { last_finalized_block_hash: test_hash, last_finalized_state_root: root, current_validator_set: authorities.clone(), - })); + }) + ); assert_eq!(MockBridge::num_bridges(), 1); }); diff --git a/bridges/modules/substrate/src/storage_proof.rs b/bridges/modules/substrate/src/storage_proof.rs index cda8311fd03d..68f2c07a20e3 100644 --- a/bridges/modules/substrate/src/storage_proof.rs +++ b/bridges/modules/substrate/src/storage_proof.rs @@ -16,9 +16,9 @@ //! Logic for checking Substrate storage proofs. -use hash_db::{Hasher, HashDB, EMPTY_PREFIX}; -use sp_trie::{MemoryDB, Trie, trie_types::TrieDB}; +use hash_db::{HashDB, Hasher, EMPTY_PREFIX}; use sp_runtime::RuntimeDebug; +use sp_trie::{trie_types::TrieDB, MemoryDB, Trie}; pub(crate) type StorageProof = Vec>; @@ -26,14 +26,16 @@ pub(crate) type StorageProof = Vec>; /// is a subset of the nodes in the Merkle structure of the database, so that it provides /// authentication against a known Merkle root as well as the values in the database themselves. pub struct StorageProofChecker - where H: Hasher +where + H: Hasher, { root: H::Out, db: MemoryDB, } impl StorageProofChecker - where H: Hasher +where + H: Hasher, { /// Constructs a new storage proof checker. /// @@ -43,10 +45,7 @@ impl StorageProofChecker for item in proof { db.insert(EMPTY_PREFIX, &item); } - let checker = StorageProofChecker { - root, - db, - }; + let checker = StorageProofChecker { root, db }; // Return error if trie would be invalid. let _ = checker.trie()?; Ok(checker) @@ -62,8 +61,7 @@ impl StorageProofChecker } fn trie(&self) -> Result, Error> { - TrieDB::new(&self.db, &self.root) - .map_err(|_| Error::StorageRootMismatch) + TrieDB::new(&self.db, &self.root).map_err(|_| Error::StorageRootMismatch) } } @@ -78,7 +76,7 @@ mod tests { use super::*; use sp_core::{Blake2Hasher, H256}; - use sp_state_machine::{prove_read, backend::Backend, InMemoryBackend}; + use sp_state_machine::{backend::Backend, prove_read, InMemoryBackend}; #[test] fn storage_proof_check() { diff --git a/bridges/primitives/ethereum-poa/src/lib.rs b/bridges/primitives/ethereum-poa/src/lib.rs index f2a7ab7f14f1..2cd5d8d2d683 100644 --- a/bridges/primitives/ethereum-poa/src/lib.rs +++ b/bridges/primitives/ethereum-poa/src/lib.rs @@ -22,21 +22,21 @@ pub use primitive_types::{H160, H256, H512, U128, U256}; #[cfg(feature = "test-helpers")] pub use rlp::encode as rlp_encode; -use sp_std::prelude::*; -use sp_io::hashing::keccak_256; use codec::{Decode, Encode}; use ethbloom::{Bloom as EthBloom, Input as BloomInput}; +use fixed_hash::construct_fixed_hash; use rlp::{Decodable, DecoderError, Rlp, RlpStream}; +use sp_io::hashing::keccak_256; use sp_runtime::RuntimeDebug; -use fixed_hash::construct_fixed_hash; +use sp_std::prelude::*; -#[cfg(feature = "std")] -use serde::{Serialize, Deserialize}; -#[cfg(feature = "std")] -use serde_big_array::big_array; use impl_rlp::impl_fixed_hash_rlp; #[cfg(feature = "std")] use impl_serde::impl_fixed_hash_serde; +#[cfg(feature = "std")] +use serde::{Deserialize, Serialize}; +#[cfg(feature = "std")] +use serde_big_array::big_array; construct_fixed_hash! { pub struct H520(65); } impl_fixed_hash_rlp!(H520, 65); @@ -121,10 +121,7 @@ pub struct LogEntry { /// Logs bloom. #[derive(Clone, Encode, Decode)] #[cfg_attr(feature = "std", derive(Serialize, Deserialize))] -pub struct Bloom( - #[cfg_attr(feature = "std", serde(with = "BigArray"))] - [u8; 256] -); +pub struct Bloom(#[cfg_attr(feature = "std", serde(with = "BigArray"))] [u8; 256]); #[cfg(feature = "std")] big_array! { BigArray; } @@ -172,7 +169,7 @@ impl Header { let mut message = self.hash().as_bytes().to_vec(); message.extend_from_slice(self.seal.get(2)?); keccak_256(&message).into() - }, + } false => keccak_256(&self.rlp(false)).into(), }) } @@ -189,7 +186,9 @@ impl Header { /// Extracts the empty steps from the header seal. pub fn empty_steps(&self) -> Option> { - self.seal.get(2).and_then(|x| Rlp::new(x).as_list::().ok()) + self.seal + .get(2) + .and_then(|x| Rlp::new(x).as_list::().ok()) } /// Returns header RLP with or without seals. @@ -232,15 +231,15 @@ impl Receipt { match self.outcome { TransactionOutcome::Unknown => { s.begin_list(3); - }, + } TransactionOutcome::StateRoot(ref root) => { s.begin_list(4); s.append(root); - }, + } TransactionOutcome::StatusCode(ref status_code) => { s.begin_list(4); s.append(status_code); - }, + } } s.append(&self.gas_used); s.append(&EthBloom::from(self.log_bloom.0)); @@ -275,9 +274,7 @@ impl SealedEmptyStep { let mut s = RlpStream::new(); s.begin_list(empty_steps.len()); for empty_step in empty_steps { - s.begin_list(2) - .append(&empty_step.signature) - .append(&empty_step.step); + s.begin_list(2).append(&empty_step.signature).append(&empty_step.step); } s.out() } @@ -295,10 +292,13 @@ impl Decodable for SealedEmptyStep { impl LogEntry { /// Calculates the bloom of this log entry. pub fn bloom(&self) -> Bloom { - let eth_bloom = self.topics.iter().fold(EthBloom::from(BloomInput::Raw(self.address.as_bytes())), |mut b, t| { - b.accrue(BloomInput::Raw(t.as_bytes())); - b - }); + let eth_bloom = + self.topics + .iter() + .fold(EthBloom::from(BloomInput::Raw(self.address.as_bytes())), |mut b, t| { + b.accrue(BloomInput::Raw(t.as_bytes())); + b + }); Bloom(*eth_bloom.data()) } }