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Sync ethereum headers using unsigned (substrate) transactions (#45)

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* reward submitters on finalization

* PoA -> Substrate: unsigned_import_header API

* fix grumble

* make submitter part of ImportContext

* verify using next validators set + tests

* fix nostd compilation

* add sub-tx-mode argument

* support sub-tx-mode

* impl ValidateUnsigned for Runtime

* do not submit too much transactions to the pool

* cargo fmt

* fix bad merge

* revert license fix

* Update modules/ethereum/src/lib.rs

Co-Authored-By: Hernando Castano <HCastano@users.noreply.github.com>

* Update modules/ethereum/src/verification.rs

Co-Authored-By: Hernando Castano <HCastano@users.noreply.github.com>

* updated comment

* validate receipts before accepting unsigned tx to pool

* cargo fmt

* fix comment

* fix grumbles

* Update modules/ethereum/src/verification.rs

Co-Authored-By: Hernando Castano <HCastano@users.noreply.github.com>

* cargo fmt --all

* struct ChangeToEnact

* updated doc

* fix doc

* add docs to the code method

* simplify fn ancestry

* finish incomplete docs

* Update modules/ethereum/src/lib.rs

Co-Authored-By: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* Update modules/ethereum/src/lib.rs

Co-Authored-By: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* return err from unsigned_import_header

* get header once

* Update relays/ethereum/src/ethereum_sync.rs

Co-Authored-By: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* fix

* UnsignedTooFarInTheFuture -> Custom(err.code())

* updated ImportContext::last_signal_block

* cargo fmt --all

* rename runtime calls

Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com>
Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>
This commit is contained in:
Svyatoslav Nikolsky
2020-04-07 15:53:59 +03:00
committed by Bastian Köcher
parent b055027161
commit c6c46462ab
12 changed files with 1043 additions and 211 deletions
Download Patch File Download Diff File Expand all files Collapse all files
bridges/modules/ethereum/src/finality.rs
+27 -6
View File
@@ -15,15 +15,18 @@
// along with Parity Bridges Common. If not, see <http://www.gnu.org/licenses/>.
use crate::error::Error;
use crate::{ancestry, Storage};
use crate::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_std::prelude::*;
use sp_std::{
collections::{
btree_map::{BTreeMap, Entry},
btree_set::BTreeSet,
vec_deque::VecDeque,
},
iter::from_fn,
};
/// Tries to finalize blocks when given block is imported.
///
@@ -190,6 +193,24 @@ fn empty_step_signer(empty_step: &SealedEmptyStep, parent_hash: &H256) -> Option
.map(|public| public_to_address(&public))
}
/// Return iterator of given header ancestors.
pub(crate) fn ancestry<'a, S: Storage>(
storage: &'a S,
header: &Header,
) -> impl Iterator<Item = (H256, Header, Option<S::Submitter>)> + 'a {
let mut parent_hash = header.parent_hash.clone();
from_fn(move || {
let (header, submitter) = storage.header(&parent_hash)?;
if header.number == 0 {
return None;
}
let hash = parent_hash.clone();
parent_hash = header.parent_hash.clone();
Some((hash, header, submitter))
})
}
#[cfg(test)]
mod tests {
use super::*;