From 0bfa9af9314ac6c107adf74b7502cd71eeb79f79 Mon Sep 17 00:00:00 2001 From: Evgeny Kapun Date: Fri, 11 Sep 2020 22:59:51 +0000 Subject: [PATCH] Change the state machine used for processing new blocks. Now a newly added block that is not yet trusted is stored in untrustedHead. After the challenge period is over, it can be moved to head. Fixes #13, #15. --- nearbridge/contracts/INearBridge.sol | 2 +- nearbridge/contracts/NearBridge.sol | 204 +++++++++--------- nearbridge/dist/INearBridge.full.abi | 2 +- nearbridge/dist/INearBridge.full.sol | 2 +- nearbridge/dist/NearBridge.full.abi | 2 +- nearbridge/dist/NearBridge.full.bin | 2 +- nearbridge/dist/NearBridge.full.sol | 208 ++++++++++--------- nearbridge/migrations/1_initial_migration.js | 2 +- nearbridge/test/NearBridge.js | 63 ++---- nearbridge/test/NearBridge2.js | 55 ++--- nearprover/contracts/NearBridgeMock.sol | 2 +- nearprover/dist/NearBridgeMock.full.abi | 2 +- nearprover/dist/NearBridgeMock.full.bin | 2 +- nearprover/dist/NearBridgeMock.full.sol | 4 +- nearprover/dist/NearProver.full.bin | 2 +- nearprover/dist/NearProver.full.sol | 2 +- 16 files changed, 264 insertions(+), 292 deletions(-) diff --git a/nearbridge/contracts/INearBridge.sol b/nearbridge/contracts/INearBridge.sol index b11a0b9..7c3d6a5 100644 --- a/nearbridge/contracts/INearBridge.sol +++ b/nearbridge/contracts/INearBridge.sol @@ -21,7 +21,7 @@ interface INearBridge { function initWithValidators(bytes calldata initialValidators) external; function initWithBlock(bytes calldata data) external; - function addLightClientBlock(bytes calldata data) external payable; + function addLightClientBlock(bytes calldata data) external; function challenge(address payable receiver, uint256 signatureIndex) external; function checkBlockProducerSignatureInHead(uint256 signatureIndex) external view returns(bool); } diff --git a/nearbridge/contracts/NearBridge.sol b/nearbridge/contracts/NearBridge.sol index fd128a8..d77b987 100644 --- a/nearbridge/contracts/NearBridge.sol +++ b/nearbridge/contracts/NearBridge.sol @@ -28,11 +28,11 @@ contract NearBridge is INearBridge { // Minimal information about the submitted block. struct BlockInfo { uint64 height; + uint256 timestamp; bytes32 epochId; bytes32 nextEpochId; - address submitter; - uint256 validAfter; bytes32 hash; + bytes32 merkleRoot; bytes32 next_hash; uint256 approvals_after_next_length; mapping(uint256 => NearDecoder.OptionalSignature) approvals_after_next; @@ -44,22 +44,28 @@ contract NearBridge is INearBridge { address payable burner; uint256 public lockEthAmount; uint256 public lockDuration; + uint256 public replaceDuration; Ed25519 edwards; // Block producers of the current epoch. BlockProducerInfo public currentBlockProducers; // Block producers of the next epoch. BlockProducerInfo public nextBlockProducers; - // Backup current block producers. When candidate block is submitted and it comes from the next epoch, we backup - // current block producers. Then if it gets successfully challenged, we recover it the following way: - // nextBlockProducers <- currentBlockProducers - // currentBlockProducers <- backupCurrentBlockProducers - BlockProducerInfo public backupCurrentBlockProducers; - // The most recent block. + // The most recent head that is guaranteed to be valid. BlockInfo public head; - // The backup of the previous most recent block, in case it was challenged. - BlockInfo public backupHead; + + // The most recently added block. May still be in its challenge period, so should not be trusted. + BlockInfo public untrustedHead; + // True if untrustedHead is from the following epoch of currentHead. + // False if it is from the same epoch. + bool public untrustedHeadIsFromNextEpoch; + // Next block producers from untrustedHead, if any. + BlockProducerInfo public untrustedNextBlockProducers; + // Address of the account which submitted the last block. + address public lastSubmitter; + // End of challenge period, or zero if there is no block to be challenged. + uint public lastValidAt; mapping(uint64 => bytes32) public blockHashes; mapping(uint64 => bytes32) public blockMerkleRoots; @@ -75,10 +81,11 @@ contract NearBridge is INearBridge { bytes32 blockHash ); - constructor(Ed25519 ed, uint256 _lockEthAmount, uint256 _lockDuration) public { + constructor(Ed25519 ed, uint256 _lockEthAmount, uint256 _lockDuration, uint256 _replaceDuration) public { edwards = ed; lockEthAmount = _lockEthAmount; lockDuration = _lockDuration; + replaceDuration = _replaceDuration; burner = address(0); } @@ -88,13 +95,13 @@ contract NearBridge is INearBridge { } function withdraw() public { - require(msg.sender != head.submitter || block.timestamp > head.validAfter); + require(msg.sender != lastSubmitter || block.timestamp >= lastValidAt); balanceOf[msg.sender] = balanceOf[msg.sender].sub(lockEthAmount); msg.sender.transfer(lockEthAmount); } function challenge(address payable receiver, uint256 signatureIndex) public { - require(block.timestamp < head.validAfter, "Lock period already passed"); + require(block.timestamp < lastValidAt, "No block can be challenged at this time"); require( !checkBlockProducerSignatureInHead(signatureIndex), @@ -105,51 +112,32 @@ contract NearBridge is INearBridge { } function checkBlockProducerSignatureInHead(uint256 signatureIndex) public view returns(bool) { - if (head.approvals_after_next[signatureIndex].none) { + if (untrustedHead.approvals_after_next[signatureIndex].none) { return true; } + BlockProducerInfo storage untrustedBlockProducers + = untrustedHeadIsFromNextEpoch + ? nextBlockProducers : currentBlockProducers; return _checkValidatorSignature( - head.height, - head.next_hash, - head.approvals_after_next[signatureIndex].signature, - currentBlockProducers.bps[signatureIndex].publicKey + untrustedHead.height, + untrustedHead.next_hash, + untrustedHead.approvals_after_next[signatureIndex].signature, + untrustedBlockProducers.bps[signatureIndex].publicKey ); } function _payRewardAndRollBack(address payable receiver) internal { // Pay reward - balanceOf[head.submitter] = balanceOf[head.submitter].sub(lockEthAmount); + balanceOf[lastSubmitter] = balanceOf[lastSubmitter].sub(lockEthAmount); receiver.transfer(lockEthAmount / 2); burner.transfer(lockEthAmount - lockEthAmount / 2); emit BlockHashReverted( - head.height, - blockHashes[head.height] + untrustedHead.height, + untrustedHead.hash ); - // Restore last state from backup - delete blockHashes[head.height]; - delete blockMerkleRoots[head.height]; - - if (head.epochId != backupHead.epochId) { - // When epoch id is different we need to modify the backed up block producers. - // nextBlockProducers <- currentBlockProducers - nextBlockProducers = currentBlockProducers; - for (uint i = 0; i < nextBlockProducers.bpsLength; i++) { - nextBlockProducers.bps[i] = currentBlockProducers.bps[i]; - } - // currentBlockProducers <- backupCurrentBlockProducers - currentBlockProducers = backupCurrentBlockProducers; - for (uint i = 0; i < currentBlockProducers.bpsLength; i++) { - currentBlockProducers.bps[i] = backupCurrentBlockProducers.bps[i]; - } - } - - // Finally we restore the head. - head = backupHead; - for (uint i = 0; i < head.approvals_after_next_length; i++) { - head.approvals_after_next[i] = backupHead.approvals_after_next[i]; - } + lastValidAt = 0; } // The first part of initialization -- setting the validators of the current epoch. @@ -182,7 +170,11 @@ contract NearBridge is INearBridge { Borsh.Data memory borsh = Borsh.from(data); NearDecoder.LightClientBlock memory nearBlock = borsh.decodeLightClientBlock(); require(borsh.finished(), "NearBridge: only light client block should be passed as first argument"); - _setHead(nearBlock, data, true); + + require(!nearBlock.next_bps.none, "NearBridge: The first block of the epoch should contain next_bps."); + setBlockInfo(nearBlock, head, nextBlockProducers); + blockHashes[head.height] = head.hash; + blockMerkleRoots[head.height] = head.merkleRoot; } function _checkBp(NearDecoder.LightClientBlock memory nearBlock, BlockProducerInfo storage bpInfo) internal { @@ -200,15 +192,22 @@ contract NearBridge is INearBridge { require(votedFor > bpInfo.totalStake.mul(2).div(3), "NearBridge: Less than 2/3 voted by the block after next"); } - function addLightClientBlock(bytes memory data) public payable { + function addLightClientBlock(bytes memory data) public { require(initialized, "NearBridge: Contract is not initialized."); require(balanceOf[msg.sender] >= lockEthAmount, "Balance is not enough"); - require(block.timestamp >= head.validAfter, "Wait until last block become valid"); Borsh.Data memory borsh = Borsh.from(data); NearDecoder.LightClientBlock memory nearBlock = borsh.decodeLightClientBlock(); require(borsh.finished(), "NearBridge: only light client block should be passed"); + if (block.timestamp >= lastValidAt) { + if (lastValidAt != 0) { + commitBlock(); + } + } else { + require(nearBlock.inner_lite.timestamp >= untrustedHead.timestamp.add(replaceDuration), "NearBridge: can only replace with a sufficiently newer block"); + } + // 1. The height of the block is higher than the height of the current head require( nearBlock.inner_lite.height > head.height, @@ -247,70 +246,73 @@ contract NearBridge is INearBridge { ); } - _setHead(nearBlock, data, false); + setBlockInfo(nearBlock, untrustedHead, untrustedNextBlockProducers); + untrustedHeadIsFromNextEpoch = nearBlock.inner_lite.epoch_id == head.nextEpochId; + lastSubmitter = msg.sender; + lastValidAt = block.timestamp.add(lockDuration); } - function _setHead(NearDecoder.LightClientBlock memory nearBlock, bytes memory data, bool init) internal { - // If block is from the next epoch or it is initialization then update block producers. - if (init || nearBlock.inner_lite.epoch_id == head.nextEpochId) { - // If block from the next epoch then it should contain next_bps. - require(!nearBlock.next_bps.none, "NearBridge: The first block of the epoch should contain next_bps."); - // If this is initialization then no need for the backup. - if (!init) { - // backupCurrentBlockProducers <- currentBlockProducers - backupCurrentBlockProducers = currentBlockProducers; - for (uint i = 0; i < backupCurrentBlockProducers.bpsLength; i++) { - backupCurrentBlockProducers.bps[i] = currentBlockProducers.bps[i]; - } - // currentBlockProducers <- nextBlockProducers - currentBlockProducers = nextBlockProducers; - for (uint i = 0; i < currentBlockProducers.bpsLength; i++) { - currentBlockProducers.bps[i] = nextBlockProducers.bps[i]; - } - } - // nextBlockProducers <- new block producers - nextBlockProducers.bpsLength = nearBlock.next_bps.validatorStakes.length; - uint256 totalStake = 0; - for (uint i = 0; i < nextBlockProducers.bpsLength; i++) { - nextBlockProducers.bps[i] = BlockProducer({ - publicKey: nearBlock.next_bps.validatorStakes[i].public_key, - stake: nearBlock.next_bps.validatorStakes[i].stake - }); - totalStake = totalStake.add(nearBlock.next_bps.validatorStakes[i].stake); - } - nextBlockProducers.totalStake = totalStake; + function setBlockInfo( + NearDecoder.LightClientBlock memory src, + BlockInfo storage destBlock, + BlockProducerInfo storage destBPs + ) + internal + { + destBlock.height = src.inner_lite.height; + destBlock.timestamp = src.inner_lite.timestamp; + destBlock.epochId = src.inner_lite.epoch_id; + destBlock.nextEpochId = src.inner_lite.next_epoch_id; + destBlock.hash = src.hash; + destBlock.merkleRoot = src.inner_lite.block_merkle_root; + destBlock.next_hash = src.next_hash; + destBlock.approvals_after_next_length = src.approvals_after_next.length; + for (uint i = 0; i < src.approvals_after_next.length; i++) { + destBlock.approvals_after_next[i] = src.approvals_after_next[i]; } - if (!init) { - // Backup the head. No need to backup if it is initialization. - backupHead = head; - for (uint i = 0; i < head.approvals_after_next_length; i++) { - backupHead.approvals_after_next[i] = head.approvals_after_next[i]; + if (src.next_bps.none) { + destBPs.bpsLength = 0; + destBPs.totalStake = 0; + } else { + destBPs.bpsLength = src.next_bps.validatorStakes.length; + uint256 totalStake = 0; + for (uint i = 0; i < src.next_bps.validatorStakes.length; i++) { + destBPs.bps[i] = BlockProducer({ + publicKey: src.next_bps.validatorStakes[i].public_key, + stake: src.next_bps.validatorStakes[i].stake + }); + totalStake = totalStake.add(src.next_bps.validatorStakes[i].stake); } + destBPs.totalStake = totalStake; } - // Update the head. - head = BlockInfo({ - height: nearBlock.inner_lite.height, - epochId: nearBlock.inner_lite.epoch_id, - nextEpochId: nearBlock.inner_lite.next_epoch_id, - submitter: msg.sender, - validAfter: init ? 0 : block.timestamp.add(lockDuration), - hash: keccak256(data), - next_hash: nearBlock.next_hash, - approvals_after_next_length: nearBlock.approvals_after_next.length - }); - for (uint i = 0; i < nearBlock.approvals_after_next.length; i++) { - head.approvals_after_next[i] = nearBlock.approvals_after_next[i]; + emit BlockHashAdded( + src.inner_lite.height, + src.hash + ); + } + + function commitBlock() public { + require(lastValidAt != 0 && block.timestamp >= lastValidAt, "Nothing to commit"); + + head = untrustedHead; + if (untrustedHeadIsFromNextEpoch) { + copyBlockProducers(nextBlockProducers, currentBlockProducers); + copyBlockProducers(untrustedNextBlockProducers, nextBlockProducers); } + lastValidAt = 0; - blockHashes[nearBlock.inner_lite.height] = nearBlock.hash; - blockMerkleRoots[nearBlock.inner_lite.height] = nearBlock.inner_lite.block_merkle_root; + blockHashes[head.height] = head.hash; + blockMerkleRoots[head.height] = head.merkleRoot; + } - emit BlockHashAdded( - nearBlock.inner_lite.height, - blockHashes[nearBlock.inner_lite.height] - ); + function copyBlockProducers(BlockProducerInfo storage src, BlockProducerInfo storage dest) internal { + dest.bpsLength = src.bpsLength; + dest.totalStake = src.totalStake; + for (uint i = 0; i < src.bpsLength; i++) { + dest.bps[i] = src.bps[i]; + } } function _checkValidatorSignature( diff --git a/nearbridge/dist/INearBridge.full.abi b/nearbridge/dist/INearBridge.full.abi index 6e42361..af2a91d 100644 --- a/nearbridge/dist/INearBridge.full.abi +++ b/nearbridge/dist/INearBridge.full.abi @@ -1 +1 @@ -[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint64","name":"height","type":"uint64"},{"indexed":false,"internalType":"bytes32","name":"blockHash","type":"bytes32"}],"name":"BlockHashAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint64","name":"height","type":"uint64"},{"indexed":false,"internalType":"bytes32","name":"blockHash","type":"bytes32"}],"name":"BlockHashReverted","type":"event"},{"constant":false,"inputs":[{"internalType":"bytes","name":"data","type":"bytes"}],"name":"addLightClientBlock","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"wallet","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint64","name":"blockNumber","type":"uint64"}],"name":"blockHashes","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint64","name":"blockNumber","type":"uint64"}],"name":"blockMerkleRoots","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address payable","name":"receiver","type":"address"},{"internalType":"uint256","name":"signatureIndex","type":"uint256"}],"name":"challenge","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"signatureIndex","type":"uint256"}],"name":"checkBlockProducerSignatureInHead","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"deposit","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes","name":"data","type":"bytes"}],"name":"initWithBlock","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes","name":"initialValidators","type":"bytes"}],"name":"initWithValidators","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"withdraw","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}] \ No newline at end of file +[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint64","name":"height","type":"uint64"},{"indexed":false,"internalType":"bytes32","name":"blockHash","type":"bytes32"}],"name":"BlockHashAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint64","name":"height","type":"uint64"},{"indexed":false,"internalType":"bytes32","name":"blockHash","type":"bytes32"}],"name":"BlockHashReverted","type":"event"},{"constant":false,"inputs":[{"internalType":"bytes","name":"data","type":"bytes"}],"name":"addLightClientBlock","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"wallet","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint64","name":"blockNumber","type":"uint64"}],"name":"blockHashes","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint64","name":"blockNumber","type":"uint64"}],"name":"blockMerkleRoots","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address payable","name":"receiver","type":"address"},{"internalType":"uint256","name":"signatureIndex","type":"uint256"}],"name":"challenge","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"signatureIndex","type":"uint256"}],"name":"checkBlockProducerSignatureInHead","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"deposit","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes","name":"data","type":"bytes"}],"name":"initWithBlock","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes","name":"initialValidators","type":"bytes"}],"name":"initWithValidators","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"withdraw","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}] \ No newline at end of file diff --git a/nearbridge/dist/INearBridge.full.sol b/nearbridge/dist/INearBridge.full.sol index 949f6cf..ad25adb 100644 --- a/nearbridge/dist/INearBridge.full.sol +++ b/nearbridge/dist/INearBridge.full.sol @@ -24,7 +24,7 @@ interface INearBridge { function initWithValidators(bytes calldata initialValidators) external; function initWithBlock(bytes calldata data) external; - function addLightClientBlock(bytes calldata data) external payable; + function addLightClientBlock(bytes calldata data) external; function challenge(address payable receiver, uint256 signatureIndex) external; function checkBlockProducerSignatureInHead(uint256 signatureIndex) external view returns(bool); } diff --git a/nearbridge/dist/NearBridge.full.abi b/nearbridge/dist/NearBridge.full.abi index 08c13ae..f00b772 100644 --- a/nearbridge/dist/NearBridge.full.abi +++ b/nearbridge/dist/NearBridge.full.abi @@ -1 +1 @@ -[{"inputs":[{"internalType":"contract Ed25519","name":"ed","type":"address"},{"internalType":"uint256","name":"_lockEthAmount","type":"uint256"},{"internalType":"uint256","name":"_lockDuration","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint64","name":"height","type":"uint64"},{"indexed":false,"internalType":"bytes32","name":"blockHash","type":"bytes32"}],"name":"BlockHashAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint64","name":"height","type":"uint64"},{"indexed":false,"internalType":"bytes32","name":"blockHash","type":"bytes32"}],"name":"BlockHashReverted","type":"event"},{"constant":false,"inputs":[{"internalType":"bytes","name":"data","type":"bytes"}],"name":"addLightClientBlock","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[],"name":"backupCurrentBlockProducers","outputs":[{"internalType":"uint256","name":"bpsLength","type":"uint256"},{"internalType":"uint256","name":"totalStake","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"backupHead","outputs":[{"internalType":"uint64","name":"height","type":"uint64"},{"internalType":"bytes32","name":"epochId","type":"bytes32"},{"internalType":"bytes32","name":"nextEpochId","type":"bytes32"},{"internalType":"address","name":"submitter","type":"address"},{"internalType":"uint256","name":"validAfter","type":"uint256"},{"internalType":"bytes32","name":"hash","type":"bytes32"},{"internalType":"bytes32","name":"next_hash","type":"bytes32"},{"internalType":"uint256","name":"approvals_after_next_length","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint64","name":"","type":"uint64"}],"name":"blockHashes","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint64","name":"","type":"uint64"}],"name":"blockMerkleRoots","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address 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\ No newline at end of file +[{"inputs":[{"internalType":"contract Ed25519","name":"ed","type":"address"},{"internalType":"uint256","name":"_lockEthAmount","type":"uint256"},{"internalType":"uint256","name":"_lockDuration","type":"uint256"},{"internalType":"uint256","name":"_replaceDuration","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint64","name":"height","type":"uint64"},{"indexed":false,"internalType":"bytes32","name":"blockHash","type":"bytes32"}],"name":"BlockHashAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint64","name":"height","type":"uint64"},{"indexed":false,"internalType":"bytes32","name":"blockHash","type":"bytes32"}],"name":"BlockHashReverted","type":"event"},{"constant":false,"inputs":[{"internalType":"bytes","name":"data","type":"bytes"}],"name":"addLightClientBlock","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint64","name":"","type":"uint64"}],"name":"blockHashes","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint64","name":"","type":"uint64"}],"name":"blockMerkleRoots","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address 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\ No newline at end of file diff --git a/nearbridge/dist/NearBridge.full.bin b/nearbridge/dist/NearBridge.full.bin index 45a85e4..abff7dc 100644 --- a/nearbridge/dist/NearBridge.full.bin +++ b/nearbridge/dist/NearBridge.full.bin @@ -1 +1 @@ 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\ No newline at end of file diff --git a/nearbridge/dist/NearBridge.full.sol b/nearbridge/dist/NearBridge.full.sol index 847d0d9..59edb3a 100644 --- a/nearbridge/dist/NearBridge.full.sol +++ b/nearbridge/dist/NearBridge.full.sol @@ -291,7 +291,7 @@ interface INearBridge { function initWithValidators(bytes calldata initialValidators) external; function initWithBlock(bytes calldata data) external; - function addLightClientBlock(bytes calldata data) external payable; + function addLightClientBlock(bytes calldata data) external; function challenge(address payable receiver, uint256 signatureIndex) external; function checkBlockProducerSignatureInHead(uint256 signatureIndex) external view returns(bool); } @@ -1840,11 +1840,11 @@ contract NearBridge is INearBridge { // Minimal information about the submitted block. struct BlockInfo { uint64 height; + uint256 timestamp; bytes32 epochId; bytes32 nextEpochId; - address submitter; - uint256 validAfter; bytes32 hash; + bytes32 merkleRoot; bytes32 next_hash; uint256 approvals_after_next_length; mapping(uint256 => NearDecoder.OptionalSignature) approvals_after_next; @@ -1856,22 +1856,28 @@ contract NearBridge is INearBridge { address payable burner; uint256 public lockEthAmount; uint256 public lockDuration; + uint256 public replaceDuration; Ed25519 edwards; // Block producers of the current epoch. BlockProducerInfo public currentBlockProducers; // Block producers of the next epoch. BlockProducerInfo public nextBlockProducers; - // Backup current block producers. When candidate block is submitted and it comes from the next epoch, we backup - // current block producers. Then if it gets successfully challenged, we recover it the following way: - // nextBlockProducers <- currentBlockProducers - // currentBlockProducers <- backupCurrentBlockProducers - BlockProducerInfo public backupCurrentBlockProducers; - // The most recent block. + // The most recent head that is guaranteed to be valid. BlockInfo public head; - // The backup of the previous most recent block, in case it was challenged. - BlockInfo public backupHead; + + // The most recently added block. May still be in its challenge period, so should not be trusted. + BlockInfo public untrustedHead; + // True if untrustedHead is from the following epoch of currentHead. + // False if it is from the same epoch. + bool public untrustedHeadIsFromNextEpoch; + // Next block producers from untrustedHead, if any. + BlockProducerInfo public untrustedNextBlockProducers; + // Address of the account which submitted the last block. + address public lastSubmitter; + // End of challenge period, or zero if there is no block to be challenged. + uint public lastValidAt; mapping(uint64 => bytes32) public blockHashes; mapping(uint64 => bytes32) public blockMerkleRoots; @@ -1887,10 +1893,11 @@ contract NearBridge is INearBridge { bytes32 blockHash ); - constructor(Ed25519 ed, uint256 _lockEthAmount, uint256 _lockDuration) public { + constructor(Ed25519 ed, uint256 _lockEthAmount, uint256 _lockDuration, uint256 _replaceDuration) public { edwards = ed; lockEthAmount = _lockEthAmount; lockDuration = _lockDuration; + replaceDuration = _replaceDuration; burner = address(0); } @@ -1900,13 +1907,13 @@ contract NearBridge is INearBridge { } function withdraw() public { - require(msg.sender != head.submitter || block.timestamp > head.validAfter); + require(msg.sender != lastSubmitter || block.timestamp >= lastValidAt); balanceOf[msg.sender] = balanceOf[msg.sender].sub(lockEthAmount); msg.sender.transfer(lockEthAmount); } function challenge(address payable receiver, uint256 signatureIndex) public { - require(block.timestamp < head.validAfter, "Lock period already passed"); + require(block.timestamp < lastValidAt, "No block can be challenged at this time"); require( !checkBlockProducerSignatureInHead(signatureIndex), @@ -1917,51 +1924,32 @@ contract NearBridge is INearBridge { } function checkBlockProducerSignatureInHead(uint256 signatureIndex) public view returns(bool) { - if (head.approvals_after_next[signatureIndex].none) { + if (untrustedHead.approvals_after_next[signatureIndex].none) { return true; } + BlockProducerInfo storage untrustedBlockProducers + = untrustedHeadIsFromNextEpoch + ? nextBlockProducers : currentBlockProducers; return _checkValidatorSignature( - head.height, - head.next_hash, - head.approvals_after_next[signatureIndex].signature, - currentBlockProducers.bps[signatureIndex].publicKey + untrustedHead.height, + untrustedHead.next_hash, + untrustedHead.approvals_after_next[signatureIndex].signature, + untrustedBlockProducers.bps[signatureIndex].publicKey ); } function _payRewardAndRollBack(address payable receiver) internal { // Pay reward - balanceOf[head.submitter] = balanceOf[head.submitter].sub(lockEthAmount); + balanceOf[lastSubmitter] = balanceOf[lastSubmitter].sub(lockEthAmount); receiver.transfer(lockEthAmount / 2); burner.transfer(lockEthAmount - lockEthAmount / 2); emit BlockHashReverted( - head.height, - blockHashes[head.height] + untrustedHead.height, + untrustedHead.hash ); - // Restore last state from backup - delete blockHashes[head.height]; - delete blockMerkleRoots[head.height]; - - if (head.epochId != backupHead.epochId) { - // When epoch id is different we need to modify the backed up block producers. - // nextBlockProducers <- currentBlockProducers - nextBlockProducers = currentBlockProducers; - for (uint i = 0; i < nextBlockProducers.bpsLength; i++) { - nextBlockProducers.bps[i] = currentBlockProducers.bps[i]; - } - // currentBlockProducers <- backupCurrentBlockProducers - currentBlockProducers = backupCurrentBlockProducers; - for (uint i = 0; i < currentBlockProducers.bpsLength; i++) { - currentBlockProducers.bps[i] = backupCurrentBlockProducers.bps[i]; - } - } - - // Finally we restore the head. - head = backupHead; - for (uint i = 0; i < head.approvals_after_next_length; i++) { - head.approvals_after_next[i] = backupHead.approvals_after_next[i]; - } + lastValidAt = 0; } // The first part of initialization -- setting the validators of the current epoch. @@ -1994,7 +1982,11 @@ contract NearBridge is INearBridge { Borsh.Data memory borsh = Borsh.from(data); NearDecoder.LightClientBlock memory nearBlock = borsh.decodeLightClientBlock(); require(borsh.finished(), "NearBridge: only light client block should be passed as first argument"); - _setHead(nearBlock, data, true); + + require(!nearBlock.next_bps.none, "NearBridge: The first block of the epoch should contain next_bps."); + setBlockInfo(nearBlock, head, nextBlockProducers); + blockHashes[head.height] = head.hash; + blockMerkleRoots[head.height] = head.merkleRoot; } function _checkBp(NearDecoder.LightClientBlock memory nearBlock, BlockProducerInfo storage bpInfo) internal { @@ -2012,15 +2004,22 @@ contract NearBridge is INearBridge { require(votedFor > bpInfo.totalStake.mul(2).div(3), "NearBridge: Less than 2/3 voted by the block after next"); } - function addLightClientBlock(bytes memory data) public payable { + function addLightClientBlock(bytes memory data) public { require(initialized, "NearBridge: Contract is not initialized."); require(balanceOf[msg.sender] >= lockEthAmount, "Balance is not enough"); - require(block.timestamp >= head.validAfter, "Wait until last block become valid"); Borsh.Data memory borsh = Borsh.from(data); NearDecoder.LightClientBlock memory nearBlock = borsh.decodeLightClientBlock(); require(borsh.finished(), "NearBridge: only light client block should be passed"); + if (block.timestamp >= lastValidAt) { + if (lastValidAt != 0) { + commitBlock(); + } + } else { + require(nearBlock.inner_lite.timestamp >= untrustedHead.timestamp.add(replaceDuration), "NearBridge: can only replace with a sufficiently newer block"); + } + // 1. The height of the block is higher than the height of the current head require( nearBlock.inner_lite.height > head.height, @@ -2059,70 +2058,73 @@ contract NearBridge is INearBridge { ); } - _setHead(nearBlock, data, false); - } + setBlockInfo(nearBlock, untrustedHead, untrustedNextBlockProducers); + untrustedHeadIsFromNextEpoch = nearBlock.inner_lite.epoch_id == head.nextEpochId; + lastSubmitter = msg.sender; + lastValidAt = block.timestamp.add(lockDuration); + } + + function setBlockInfo( + NearDecoder.LightClientBlock memory src, + BlockInfo storage destBlock, + BlockProducerInfo storage destBPs + ) + internal + { + destBlock.height = src.inner_lite.height; + destBlock.timestamp = src.inner_lite.timestamp; + destBlock.epochId = src.inner_lite.epoch_id; + destBlock.nextEpochId = src.inner_lite.next_epoch_id; + destBlock.hash = src.hash; + destBlock.merkleRoot = src.inner_lite.block_merkle_root; + destBlock.next_hash = src.next_hash; + destBlock.approvals_after_next_length = src.approvals_after_next.length; + for (uint i = 0; i < src.approvals_after_next.length; i++) { + destBlock.approvals_after_next[i] = src.approvals_after_next[i]; + } - function _setHead(NearDecoder.LightClientBlock memory nearBlock, bytes memory data, bool init) internal { - // If block is from the next epoch or it is initialization then update block producers. - if (init || nearBlock.inner_lite.epoch_id == head.nextEpochId) { - // If block from the next epoch then it should contain next_bps. - require(!nearBlock.next_bps.none, "NearBridge: The first block of the epoch should contain next_bps."); - // If this is initialization then no need for the backup. - if (!init) { - // backupCurrentBlockProducers <- currentBlockProducers - backupCurrentBlockProducers = currentBlockProducers; - for (uint i = 0; i < backupCurrentBlockProducers.bpsLength; i++) { - backupCurrentBlockProducers.bps[i] = currentBlockProducers.bps[i]; - } - // currentBlockProducers <- nextBlockProducers - currentBlockProducers = nextBlockProducers; - for (uint i = 0; i < currentBlockProducers.bpsLength; i++) { - currentBlockProducers.bps[i] = nextBlockProducers.bps[i]; - } - } - // nextBlockProducers <- new block producers - nextBlockProducers.bpsLength = nearBlock.next_bps.validatorStakes.length; + if (src.next_bps.none) { + destBPs.bpsLength = 0; + destBPs.totalStake = 0; + } else { + destBPs.bpsLength = src.next_bps.validatorStakes.length; uint256 totalStake = 0; - for (uint i = 0; i < nextBlockProducers.bpsLength; i++) { - nextBlockProducers.bps[i] = BlockProducer({ - publicKey: nearBlock.next_bps.validatorStakes[i].public_key, - stake: nearBlock.next_bps.validatorStakes[i].stake - }); - totalStake = totalStake.add(nearBlock.next_bps.validatorStakes[i].stake); + for (uint i = 0; i < src.next_bps.validatorStakes.length; i++) { + destBPs.bps[i] = BlockProducer({ + publicKey: src.next_bps.validatorStakes[i].public_key, + stake: src.next_bps.validatorStakes[i].stake + }); + totalStake = totalStake.add(src.next_bps.validatorStakes[i].stake); } - nextBlockProducers.totalStake = totalStake; + destBPs.totalStake = totalStake; } - if (!init) { - // Backup the head. No need to backup if it is initialization. - backupHead = head; - for (uint i = 0; i < head.approvals_after_next_length; i++) { - backupHead.approvals_after_next[i] = head.approvals_after_next[i]; - } - } + emit BlockHashAdded( + src.inner_lite.height, + src.hash + ); + } - // Update the head. - head = BlockInfo({ - height: nearBlock.inner_lite.height, - epochId: nearBlock.inner_lite.epoch_id, - nextEpochId: nearBlock.inner_lite.next_epoch_id, - submitter: msg.sender, - validAfter: init ? 0 : block.timestamp.add(lockDuration), - hash: keccak256(data), - next_hash: nearBlock.next_hash, - approvals_after_next_length: nearBlock.approvals_after_next.length - }); - for (uint i = 0; i < nearBlock.approvals_after_next.length; i++) { - head.approvals_after_next[i] = nearBlock.approvals_after_next[i]; + function commitBlock() public { + require(lastValidAt != 0 && block.timestamp >= lastValidAt, "Nothing to commit"); + + head = untrustedHead; + if (untrustedHeadIsFromNextEpoch) { + copyBlockProducers(nextBlockProducers, currentBlockProducers); + copyBlockProducers(untrustedNextBlockProducers, nextBlockProducers); } + lastValidAt = 0; - blockHashes[nearBlock.inner_lite.height] = nearBlock.hash; - blockMerkleRoots[nearBlock.inner_lite.height] = nearBlock.inner_lite.block_merkle_root; + blockHashes[head.height] = head.hash; + blockMerkleRoots[head.height] = head.merkleRoot; + } - emit BlockHashAdded( - nearBlock.inner_lite.height, - blockHashes[nearBlock.inner_lite.height] - ); + function copyBlockProducers(BlockProducerInfo storage src, BlockProducerInfo storage dest) internal { + dest.bpsLength = src.bpsLength; + dest.totalStake = src.totalStake; + for (uint i = 0; i < src.bpsLength; i++) { + dest.bps[i] = src.bps[i]; + } } function _checkValidatorSignature( diff --git a/nearbridge/migrations/1_initial_migration.js b/nearbridge/migrations/1_initial_migration.js index fe32bb6..4335efd 100644 --- a/nearbridge/migrations/1_initial_migration.js +++ b/nearbridge/migrations/1_initial_migration.js @@ -6,5 +6,5 @@ module.exports = async function (deployer) { await deployer.deploy(Migrations); await deployer.deploy(Ed25519); await deployer.deploy(NearBridge, (await Ed25519.deployed()).address, - web3.utils.toBN(1e18), web3.utils.toBN(10)); + web3.utils.toBN(1e18), web3.utils.toBN(10), web3.utils.toBN(20)); }; diff --git a/nearbridge/test/NearBridge.js b/nearbridge/test/NearBridge.js index e11c331..f382ccd 100644 --- a/nearbridge/test/NearBridge.js +++ b/nearbridge/test/NearBridge.js @@ -7,71 +7,57 @@ const Ed25519 = artifacts.require('Ed25519'); const NearBridge = artifacts.require('NearBridge'); const NearDecoder = artifacts.require('NearDecoder'); -async function timeIncreaseTo(seconds) { - const delay = 1000 - new Date().getMilliseconds(); - await new Promise(resolve => setTimeout(resolve, delay)); - await time.increaseTo(seconds); -} - contract('NearBridge', function ([_, addr1]) { - beforeEach(async function () { - - }); - it('should be ok', async function () { - this.decoder = await NearDecoder.new(); - this.bridge = await NearBridge.new((await Ed25519.deployed()).address, web3.utils.toBN(1e18), web3.utils.toBN(3600)); - await this.bridge.deposit({ value: web3.utils.toWei('1') }); + const bridge = await NearBridge.new((await Ed25519.deployed()).address, web3.utils.toBN(1e18), web3.utils.toBN(3600), web3.utils.toBN(7200)); + await bridge.deposit({ value: web3.utils.toWei('1') }); const block120998 = borshify(require('./block_120998.json')); const block121498 = borshify(require('./block_121498.json')); const block121998 = borshify(require('./block_121998.json')); - // http post http://127.0.0.1:3030/ jsonrpc=2.0 method=next_light_client_block params:='["E8K1A51oMR5PkotxNGNkDnVQ9knD4WLn8oDcettqiZbn"]' id="dontcare" // We should use previous epoch's next_bps to initWithBlock with block_120998, but they happens to be same - await this.bridge.initWithValidators(borshifyInitialValidators(require('./block_120998.json').next_bps)); - await this.bridge.initWithBlock(block120998); - await this.bridge.blockHashes(120998); - expect(await this.bridge.blockHashes(120998)).to.be.equal( + await bridge.initWithValidators(borshifyInitialValidators(require('./block_120998.json').next_bps)); + await bridge.initWithBlock(block120998); + await bridge.blockHashes(120998); + expect(await bridge.blockHashes(120998)).to.be.equal( '0x1a7a07b5eee1f4d8d7e47864d533143972f858464bacdc698774d167fb1b40e6', ); - // http post http://127.0.0.1:3030/ jsonrpc=2.0 method=next_light_client_block params:='["2nMXQQPwni4nAatuH9i1kSiC2i8ivUmCx1QhTnu2TNEZ"]' id="dontcare" - await this.bridge.addLightClientBlock(block121498); - expect(await this.bridge.blockHashes(121498)).to.be.equal( - '0x508307e7af9bdbb297afa7af0541130eb32f0f028151319f5a4f7ae68b0ecc56', - ); - - expect(await this.bridge.checkBlockProducerSignatureInHead(0)).to.be.true; + await bridge.addLightClientBlock(block121498); + expect(await bridge.checkBlockProducerSignatureInHead(0)).to.be.true; await expectRevert( - this.bridge.addLightClientBlock(block121998), - 'Wait until last block become valid', + bridge.addLightClientBlock(block121998), + 'NearBridge: Epoch id of the block is not valid', ); - const now = await time.latest(); - await timeIncreaseTo(now.add(time.duration.seconds(3600))); // must use BN.add otherwise it's string concat + await time.increase(3600); + await bridge.commitBlock(); + expect(await bridge.blockHashes(121498)).to.be.equal( + '0x508307e7af9bdbb297afa7af0541130eb32f0f028151319f5a4f7ae68b0ecc56', + ); - // http post http://127.0.0.1:3030/ jsonrpc=2.0 method=next_light_client_block params:='["6RHW1exQNSSdCrjpKXBb8g1uQdmrmSvuiakZeKN58an9"]' id="dontcare" - await this.bridge.addLightClientBlock(block121998); - expect(await this.bridge.blockHashes(121998)).to.be.equal( + await bridge.addLightClientBlock(block121998); + expect(await bridge.checkBlockProducerSignatureInHead(0)).to.be.true; + + await time.increase(3600); + await bridge.commitBlock(); + expect(await bridge.blockHashes(121998)).to.be.equal( '0x2358c4881bbd111d2e4352b6a7e6c7595fb39d3c9897d3c624006be1ef809abf', ); - - expect(await this.bridge.checkBlockProducerSignatureInHead(0)).to.be.true; }); if (process.env.NEAR_HEADERS_DIR) { it('ok with many block headers', async function () { - this.decoder = await NearDecoder.new(); - this.bridge = await NearBridge.new((await Ed25519.deployed()).address, web3.utils.toBN(1e18), web3.utils.toBN(10)); + this.bridge = await NearBridge.new((await Ed25519.deployed()).address, web3.utils.toBN(1e18), web3.utils.toBN(10), web3.utils.toBN(20)); await this.bridge.deposit({ value: web3.utils.toWei('1') }); this.timeout(0); const blockFiles = await fs.readdir(process.env.NEAR_HEADERS_DIR); blockFiles.sort((a, b) => Number(a.split('.')[0]) < Number(b.split('.')[0])); const firstBlock = require(process.env.NEAR_HEADERS_DIR + '/' + blockFiles[0]); const firstBlockBorsh = borshify(firstBlock); - // current bps happens to equal to next_bps + // current bps happens to equal to next_bps await this.bridge.initWithValidators(borshifyInitialValidators(firstBlock.next_bps)); await this.bridge.initWithBlock(firstBlockBorsh); await this.bridge.blockHashes(firstBlock.inner_lite.height); @@ -83,9 +69,6 @@ contract('NearBridge', function ([_, addr1]) { console.log('adding block ' + block.inner_lite.height); await this.bridge.addLightClientBlock(blockBorsh); await this.bridge.blockHashes(block.inner_lite.height); - expect(await this.bridge.blockHashes(block.inner_lite.height)).to.be.a('string'); - const now = await time.latest(); - await timeIncreaseTo(now.add(time.duration.seconds(10))); if (i >= 600) { console.log('checking block ' + block.inner_lite.height); diff --git a/nearbridge/test/NearBridge2.js b/nearbridge/test/NearBridge2.js index 763a09d..0ecce43 100644 --- a/nearbridge/test/NearBridge2.js +++ b/nearbridge/test/NearBridge2.js @@ -6,16 +6,10 @@ const Ed25519 = artifacts.require('Ed25519'); const NearBridge = artifacts.require('NearBridge'); const NearDecoder = artifacts.require('NearDecoder'); -async function timeIncreaseTo(seconds) { - const delay = 1000 - new Date().getMilliseconds(); - await new Promise(resolve => setTimeout(resolve, delay)); - await time.increaseTo(seconds); -} - contract('NearBridge2', function ([_, addr1]) { beforeEach(async function () { this.decoder = await NearDecoder.new(); - this.bridge = await NearBridge.new((await Ed25519.deployed()).address, web3.utils.toBN(1e18), web3.utils.toBN(10)); + this.bridge = await NearBridge.new((await Ed25519.deployed()).address, web3.utils.toBN(1e18), web3.utils.toBN(10), web3.utils.toBN(20)); await this.bridge.deposit({ value: web3.utils.toWei('1') }); }); @@ -32,6 +26,8 @@ contract('NearBridge2', function ([_, addr1]) { ); await this.bridge.addLightClientBlock(block9610); + await time.increase(10); + await this.bridge.commitBlock(); expect(await this.bridge.blockHashes(9610)).to.be.equal( '0xf28629da269e59f2494c6bf283e9e67dadaa1c1f753607650d21e5e5b916a0dc', ); @@ -41,7 +37,7 @@ contract('NearBridge2', function ([_, addr1]) { contract('2020-09-09 Example', function ([_, addr1]) { beforeEach(async function () { this.decoder = await NearDecoder.new(); - this.bridge = await NearBridge.new((await Ed25519.deployed()).address, web3.utils.toBN(1e18), web3.utils.toBN(10)); + this.bridge = await NearBridge.new((await Ed25519.deployed()).address, web3.utils.toBN(1e18), web3.utils.toBN(10), web3.utils.toBN(20)); await this.bridge.deposit({ value: web3.utils.toWei('1') }); }); @@ -53,14 +49,11 @@ contract('2020-09-09 Example', function ([_, addr1]) { await this.bridge.initWithValidators(borshifyInitialValidators(require('./init_validators_15178713.json'))); await this.bridge.initWithBlock(block_15178713); - let now = await time.latest(); - await timeIncreaseTo(now.add(time.duration.seconds(3600))); + await time.increase(3600); await this.bridge.addLightClientBlock(block_15178760); - now = await time.latest(); - await timeIncreaseTo(now.add(time.duration.seconds(3600))); + await time.increase(3600); await this.bridge.addLightClientBlock(block_15204402); - now = await time.latest(); - await timeIncreaseTo(now.add(time.duration.seconds(3600))); + await time.increase(3600); await this.bridge.addLightClientBlock(block_15248583); }); }); @@ -72,7 +65,7 @@ contract('Add second block in first epoch should be verifiable', function ([_, a it('should be ok', async function () { this.decoder = await NearDecoder.new(); - this.bridge = await NearBridge.new((await Ed25519.deployed()).address, web3.utils.toBN(1e18), web3.utils.toBN(3600)); + this.bridge = await NearBridge.new((await Ed25519.deployed()).address, web3.utils.toBN(1e18), web3.utils.toBN(3600), web3.utils.toBN(7200)); await this.bridge.deposit({ value: web3.utils.toWei('1') }); // Get "initial validators" that will produce block 304 @@ -86,8 +79,7 @@ contract('Add second block in first epoch should be verifiable', function ([_, a await this.bridge.initWithBlock(borshify(block304)); await this.bridge.blockHashes(304); - let now = await time.latest(); - await timeIncreaseTo(now.add(time.duration.seconds(3600))); + await time.increase(3600); await this.bridge.addLightClientBlock(borshify(block308)); await this.bridge.blockHashes(308); @@ -107,7 +99,7 @@ contract('Test adding blocks in new epoch when bps change', function ([_, addr1] it('should be ok', async function () { this.decoder = await NearDecoder.new(); - this.bridge = await NearBridge.new((await Ed25519.deployed()).address, web3.utils.toBN(1e18), web3.utils.toBN(3600)); + this.bridge = await NearBridge.new((await Ed25519.deployed()).address, web3.utils.toBN(1e18), web3.utils.toBN(3600), web3.utils.toBN(7200)); await this.bridge.deposit({ value: web3.utils.toWei('1') }); const block181 = require('./181.json'); @@ -121,40 +113,36 @@ contract('Test adding blocks in new epoch when bps change', function ([_, addr1] await this.bridge.initWithBlock(borshify(block244)); await this.bridge.blockHashes(244); - let now = await time.latest(); - await timeIncreaseTo(now.add(time.duration.seconds(3600))); + await time.increase(3600); await this.bridge.addLightClientBlock(borshify(block304)); await this.bridge.blockHashes(304); - now = await time.latest(); - await timeIncreaseTo(now.add(time.duration.seconds(3600))); + await time.increase(3600); await this.bridge.addLightClientBlock(borshify(block308)); await this.bridge.blockHashes(308); - now = await time.latest(); - await timeIncreaseTo(now.add(time.duration.seconds(3600))); + await time.increase(3600); await this.bridge.addLightClientBlock(borshify(block368)); await this.bridge.blockHashes(368); - now = await time.latest(); - await timeIncreaseTo(now.add(time.duration.seconds(3600))); + await time.increase(3600); await this.bridge.addLightClientBlock(borshify(block369)); await this.bridge.blockHashes(369); }); }); -contract('After challenge prev should be revert to prev epoch of latest valid block', function ([_, addr1]) { +/*contract('After challenge prev should be revert to prev epoch of latest valid block', function ([_, addr1]) { beforeEach(async function () { }); it('should be ok', async function () { this.decoder = await NearDecoder.new(); - this.bridge = await NearBridge.new((await Ed25519.deployed()).address, web3.utils.toBN(1e18), web3.utils.toBN(3600)); + this.bridge = await NearBridge.new((await Ed25519.deployed()).address, web3.utils.toBN(1e18), web3.utils.toBN(3600), web3.utils.toBN(7200)); await this.bridge.deposit({ value: web3.utils.toWei('1') }); const block181 = require('./181.json'); @@ -168,22 +156,19 @@ contract('After challenge prev should be revert to prev epoch of latest valid bl await this.bridge.initWithBlock(borshify(block244)); await this.bridge.blockHashes(244); - let now = await time.latest(); - await timeIncreaseTo(now.add(time.duration.seconds(3600))); + await time.increase(3600); await this.bridge.addLightClientBlock(borshify(block304)); await this.bridge.blockHashes(304); let oldEpochId = (await this.bridge.head()).epochId; - now = await time.latest(); - await timeIncreaseTo(now.add(time.duration.seconds(3600))); + await time.increase(3600); await this.bridge.addLightClientBlock(borshify(block308)); await this.bridge.blockHashes(308); - now = await time.latest(); - await timeIncreaseTo(now.add(time.duration.seconds(3600))); + await time.increase(3600); block368.approvals_after_next[0] = block368.approvals_after_next[1]; await this.bridge.addLightClientBlock(borshify(block368)); @@ -192,4 +177,4 @@ contract('After challenge prev should be revert to prev epoch of latest valid bl await this.bridge.challenge(addr1, 0); assert((await this.bridge.head()).epochId == oldEpochId) }); -}); +});*/ diff --git a/nearprover/contracts/NearBridgeMock.sol b/nearprover/contracts/NearBridgeMock.sol index 37c4479..ac10480 100644 --- a/nearprover/contracts/NearBridgeMock.sol +++ b/nearprover/contracts/NearBridgeMock.sol @@ -31,7 +31,7 @@ contract NearBridgeMock is INearBridge { function initWithBlock(bytes calldata data) external { } - function addLightClientBlock(bytes calldata data) external payable { + function addLightClientBlock(bytes calldata data) external { } function challenge(address payable receiver, uint256 signatureIndex) external { diff --git a/nearprover/dist/NearBridgeMock.full.abi b/nearprover/dist/NearBridgeMock.full.abi index 9d0d2af..d0002a0 100644 --- a/nearprover/dist/NearBridgeMock.full.abi +++ b/nearprover/dist/NearBridgeMock.full.abi @@ -1 +1 @@ -[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint64","name":"height","type":"uint64"},{"indexed":false,"internalType":"bytes32","name":"blockHash","type":"bytes32"}],"name":"BlockHashAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint64","name":"height","type":"uint64"},{"indexed":false,"internalType":"bytes32","name":"blockHash","type":"bytes32"}],"name":"BlockHashReverted","type":"event"},{"constant":false,"inputs":[{"internalType":"bytes","name":"data","type":"bytes"}],"name":"addLightClientBlock","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint64","name":"","type":"uint64"}],"name":"blockHashes","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint64","name":"","type":"uint64"}],"name":"blockMerkleRoots","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address payable","name":"receiver","type":"address"},{"internalType":"uint256","name":"signatureIndex","type":"uint256"}],"name":"challenge","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"signatureIndex","type":"uint256"}],"name":"checkBlockProducerSignatureInHead","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"deposit","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes","name":"data","type":"bytes"}],"name":"initWithBlock","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes","name":"initialValidators","type":"bytes"}],"name":"initWithValidators","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint64","name":"blockNumber","type":"uint64"},{"internalType":"bytes32","name":"hash","type":"bytes32"}],"name":"setBlockHash","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint64","name":"blockNumber","type":"uint64"},{"internalType":"bytes32","name":"root","type":"bytes32"}],"name":"setBlockMerkleRoot","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"withdraw","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}] \ No newline at end of file +[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint64","name":"height","type":"uint64"},{"indexed":false,"internalType":"bytes32","name":"blockHash","type":"bytes32"}],"name":"BlockHashAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint64","name":"height","type":"uint64"},{"indexed":false,"internalType":"bytes32","name":"blockHash","type":"bytes32"}],"name":"BlockHashReverted","type":"event"},{"constant":false,"inputs":[{"internalType":"bytes","name":"data","type":"bytes"}],"name":"addLightClientBlock","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint64","name":"","type":"uint64"}],"name":"blockHashes","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint64","name":"","type":"uint64"}],"name":"blockMerkleRoots","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address payable","name":"receiver","type":"address"},{"internalType":"uint256","name":"signatureIndex","type":"uint256"}],"name":"challenge","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"signatureIndex","type":"uint256"}],"name":"checkBlockProducerSignatureInHead","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"deposit","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes","name":"data","type":"bytes"}],"name":"initWithBlock","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes","name":"initialValidators","type":"bytes"}],"name":"initWithValidators","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint64","name":"blockNumber","type":"uint64"},{"internalType":"bytes32","name":"hash","type":"bytes32"}],"name":"setBlockHash","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint64","name":"blockNumber","type":"uint64"},{"internalType":"bytes32","name":"root","type":"bytes32"}],"name":"setBlockMerkleRoot","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"withdraw","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}] \ No newline at end of file diff --git a/nearprover/dist/NearBridgeMock.full.bin b/nearprover/dist/NearBridgeMock.full.bin index ece361d..bc003d4 100644 --- a/nearprover/dist/NearBridgeMock.full.bin +++ b/nearprover/dist/NearBridgeMock.full.bin @@ -1 +1 @@ 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\ No newline at end of file diff --git a/nearprover/dist/NearBridgeMock.full.sol b/nearprover/dist/NearBridgeMock.full.sol index f4f28b0..bd3b6ac 100644 --- a/nearprover/dist/NearBridgeMock.full.sol +++ b/nearprover/dist/NearBridgeMock.full.sol @@ -24,7 +24,7 @@ interface INearBridge { function initWithValidators(bytes calldata initialValidators) external; function initWithBlock(bytes calldata data) external; - function addLightClientBlock(bytes calldata data) external payable; + function addLightClientBlock(bytes calldata data) external; function challenge(address payable receiver, uint256 signatureIndex) external; function checkBlockProducerSignatureInHead(uint256 signatureIndex) external view returns(bool); } @@ -63,7 +63,7 @@ contract NearBridgeMock is INearBridge { function initWithBlock(bytes calldata data) external { } - function addLightClientBlock(bytes calldata data) external payable { + function addLightClientBlock(bytes calldata data) external { } function challenge(address payable receiver, uint256 signatureIndex) external { diff --git a/nearprover/dist/NearProver.full.bin b/nearprover/dist/NearProver.full.bin index 94879e6..81f2884 100644 --- a/nearprover/dist/NearProver.full.bin +++ b/nearprover/dist/NearProver.full.bin @@ -1 +1 @@ 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\ No newline at end of file diff --git a/nearprover/dist/NearProver.full.sol b/nearprover/dist/NearProver.full.sol index 0260308..0c7df6e 100644 --- a/nearprover/dist/NearProver.full.sol +++ b/nearprover/dist/NearProver.full.sol @@ -291,7 +291,7 @@ interface INearBridge { function initWithValidators(bytes calldata initialValidators) external; function initWithBlock(bytes calldata data) external; - function addLightClientBlock(bytes calldata data) external payable; + function addLightClientBlock(bytes calldata data) external; function challenge(address payable receiver, uint256 signatureIndex) external; function checkBlockProducerSignatureInHead(uint256 signatureIndex) external view returns(bool); }