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Merge pull request #6 from router-protocol/feat/liquidStaking
Feat/liquid staking
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136 changes: 136 additions & 0 deletions
136
contracts/intent-adapters/liquid-staking/Benqi/BenqiStakeAvax.sol
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,136 @@ | ||
| // SPDX-License-Identifier: MIT | ||
| pragma solidity 0.8.18; | ||
|
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| import {IBenqiStakeAvax} from "./Interfaces.sol"; | ||
| import {RouterIntentAdapter, Errors} from "router-intents/contracts/RouterIntentAdapter.sol"; | ||
| import {NitroMessageHandler} from "router-intents/contracts/NitroMessageHandler.sol"; | ||
| import {IERC20, SafeERC20} from "../../../utils/SafeERC20.sol"; | ||
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| /** | ||
| * @title BenqiStakeAvax | ||
| * @author Yashika Goyal | ||
| * @notice Staking AVAX to receive BenqiAVAX on Benqi. | ||
| * @notice This contract is only for Avalanche chain. | ||
| */ | ||
| contract BenqiStakeAvax is RouterIntentAdapter, NitroMessageHandler { | ||
| using SafeERC20 for IERC20; | ||
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| address private immutable _benqiSAvax; | ||
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| event BenqiStakeAvaxDest( | ||
| address _recipient, | ||
| uint256 _amount, | ||
| uint256 _receivedSAvax | ||
| ); | ||
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| constructor( | ||
| address __native, | ||
| address __wnative, | ||
| address __owner, | ||
| address __assetForwarder, | ||
| address __dexspan, | ||
| address __benqiSAvax | ||
| ) | ||
| RouterIntentAdapter(__native, __wnative, __owner) | ||
| NitroMessageHandler(__assetForwarder, __dexspan) | ||
| { | ||
| _benqiSAvax = __benqiSAvax; | ||
| } | ||
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| function benqiSAvax() public view returns (address) { | ||
| return _benqiSAvax; | ||
| } | ||
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| function name() public pure override returns (string memory) { | ||
| return "BenqiStakeAvax"; | ||
| } | ||
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| /** | ||
| * @inheritdoc RouterIntentAdapter | ||
| */ | ||
| function execute( | ||
| address, | ||
| address, | ||
| bytes calldata data | ||
| ) external payable override returns (address[] memory tokens) { | ||
| (address _recipient, uint256 _amount) = parseInputs(data); | ||
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| // If the adapter is called using `call` and not `delegatecall` | ||
| if (address(this) == self()) { | ||
| require( | ||
| msg.value == _amount, | ||
| Errors.INSUFFICIENT_NATIVE_FUNDS_PASSED | ||
| ); | ||
| } | ||
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| bytes memory logData; | ||
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| (tokens, logData) = _stake(_recipient, _amount); | ||
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| emit ExecutionEvent(name(), logData); | ||
| return tokens; | ||
| } | ||
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| /** | ||
| * @inheritdoc NitroMessageHandler | ||
| */ | ||
| function handleMessage( | ||
| address tokenSent, | ||
| uint256 amount, | ||
| bytes memory instruction | ||
| ) external override onlyNitro nonReentrant { | ||
| address recipient = abi.decode(instruction, (address)); | ||
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| if (tokenSent != native()) { | ||
| withdrawTokens(tokenSent, recipient, amount); | ||
| emit OperationFailedRefundEvent(tokenSent, recipient, amount); | ||
| return; | ||
| } | ||
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| try IBenqiStakeAvax(_benqiSAvax).submit{value: amount}() { | ||
| uint256 _receivedSAvax = withdrawTokens( | ||
| _benqiSAvax, | ||
| recipient, | ||
| type(uint256).max | ||
| ); | ||
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| emit BenqiStakeAvaxDest(recipient, amount, _receivedSAvax); | ||
| } catch { | ||
| withdrawTokens(tokenSent, recipient, amount); | ||
| emit OperationFailedRefundEvent(tokenSent, recipient, amount); | ||
| } | ||
| } | ||
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| //////////////////////////// ACTION LOGIC //////////////////////////// | ||
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| function _stake( | ||
| address _recipient, | ||
| uint256 _amount | ||
| ) internal returns (address[] memory tokens, bytes memory logData) { | ||
| IBenqiStakeAvax(_benqiSAvax).submit{value: _amount}(); | ||
| uint256 _receivedSAvax = withdrawTokens( | ||
| _benqiSAvax, | ||
| _recipient, | ||
| type(uint256).max | ||
| ); | ||
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| tokens = new address[](2); | ||
| tokens[0] = native(); | ||
| tokens[1] = benqiSAvax(); | ||
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| logData = abi.encode(_recipient, _amount, _receivedSAvax); | ||
| } | ||
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| /** | ||
| * @dev function to parse input data. | ||
| * @param data input data. | ||
| */ | ||
| function parseInputs( | ||
| bytes memory data | ||
| ) public pure returns (address, uint256) { | ||
| return abi.decode(data, (address, uint256)); | ||
| } | ||
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| // solhint-disable-next-line no-empty-blocks | ||
| receive() external payable {} | ||
| } |
6 changes: 6 additions & 0 deletions
6
contracts/intent-adapters/liquid-staking/Benqi/Interfaces.sol
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,6 @@ | ||
| // SPDX-License-Identifier: MIT | ||
| pragma solidity 0.8.18; | ||
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| interface IBenqiStakeAvax { | ||
| function submit() external payable returns (uint); | ||
| } |
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