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* Limit gas to 3500 (#127) * Implement function emergency exit for Validators (#126) * [ValidatorSet] Replace error messages by custom erorrs (#129) * [RoninGovernanceAdmin] Expose function & store bridge operator set (#132) * [ValidatorSet] Add details for `StakingRewardDistributed` event (#133) * Impl forwarder contract (#128) * Support voting without signatures on the Ronin network (#130) * [Staking] Rename for clarity between pools and active pools (#134)
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| Original file line number | Diff line number | Diff line change |
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| // SPDX-License-Identifier: MIT | ||
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| pragma solidity ^0.8.0; | ||
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| import "./ForwarderLogic.sol"; | ||
| import "./ForwarderRole.sol"; | ||
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| contract Forwarder is ForwarderLogic, ForwarderRole { | ||
| /** | ||
| * @dev Initializes the forwarder with an initial target address and a contract admin. | ||
| */ | ||
| constructor(address __target, address __admin) payable { | ||
| _changeTargetTo(__target); | ||
| _changeAdminTo(__admin); | ||
| } | ||
|
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| modifier onlyModerator() { | ||
| require(_isModerator(msg.sender), "Forwarder: unauthorized call"); | ||
| _; | ||
| } | ||
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| modifier adminExecutesOrModeratorForwards() { | ||
| if (_isAdmin(msg.sender)) { | ||
| _; | ||
| } else { | ||
| require(_isModerator(msg.sender), "Forwarder: unauthorized call"); | ||
| _fallback(); | ||
| } | ||
| } | ||
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| /** | ||
| * @dev Forwards the call to the target (the `msg.value` is sent along in the call). | ||
| * | ||
| * Requirements: | ||
| * - Only moderator can invoke fallback method. | ||
| */ | ||
| fallback() external payable override onlyModerator { | ||
| _fallback(); | ||
| } | ||
|
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| /** | ||
| * @dev Receives RON transfer from all addresses. | ||
| */ | ||
| receive() external payable override {} | ||
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| /** | ||
| * @dev Returns the current admin. | ||
| * | ||
| * NOTE: Only the admin can call this function. See {ForwarderStorage-_getAdmin}. | ||
| * | ||
| * TIP: To get this value clients can read directly from the storage slot shown below using the | ||
| * https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call. | ||
| * `0xa8c82e6b38a127695961bbff56774712a221ab251224d4167eab01e23fcee6ca` | ||
| */ | ||
| function admin() external adminExecutesOrModeratorForwards returns (address admin_) { | ||
| admin_ = _getAdmin(); | ||
| } | ||
|
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| /** | ||
| * @dev Changes the admin of the forwarder. | ||
| * | ||
| * Emits an {AdminChanged} event. | ||
| * | ||
| * NOTE: Only the admin can call this function. See {ForwarderStorage-_changeAdminTo}. | ||
| */ | ||
| function changeAdminTo(address newAdmin) external virtual adminExecutesOrModeratorForwards { | ||
| _changeAdminTo(newAdmin); | ||
| } | ||
|
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| /** | ||
| * @dev Returns the current target. | ||
| * | ||
| * NOTE: Only the admin can call this function. See {ForwarderStorage-_getTarget}. | ||
| * | ||
| * TIP: To get this value clients can read directly from the storage slot shown below using the | ||
| * https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call. | ||
| * `0xcbec2a70e8f0a52aeb8f96e02517dc497e58d9a6fa86ab4056563f1e6baf3d3e` | ||
| */ | ||
| function moderator() external adminExecutesOrModeratorForwards returns (address moderator_) { | ||
| moderator_ = _getModerator(); | ||
| } | ||
|
|
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| /** | ||
| * @dev Changes the moderator of the forwarder. | ||
| * | ||
| * Emits an {ModeratorChanged} event. | ||
| * | ||
| * NOTE: Only the moderator can call this function. See {ForwarderStorage-_changeModeratorTo}. | ||
| */ | ||
| function changeModeratorTo(address newModerator) external virtual adminExecutesOrModeratorForwards { | ||
| _changeModeratorTo(newModerator); | ||
| } | ||
|
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| /** | ||
| * @dev Returns the current target. | ||
| * | ||
| * NOTE: Only the moderator can call this function. See {ForwarderStorage-_getTarget}. | ||
| * | ||
| * TIP: To get this value clients can read directly from the storage slot shown below using the | ||
| * https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call. | ||
| * `0x58221d865d4bfcbfe437720ee0c958ac3269c4e9c775f643bf474ed980d61168` | ||
| */ | ||
| function target() external adminExecutesOrModeratorForwards returns (address target_) { | ||
| target_ = _target(); | ||
| } | ||
|
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| /** | ||
| * @dev Changes the target of the forwarder. | ||
| * | ||
| * Emits an {TargetChanged} event. | ||
| * | ||
| * NOTE: Only the admin can call this function. See {ForwarderStorage-_changeTargetTo}. | ||
| */ | ||
| function changeTargetTo(address newTarget) external virtual adminExecutesOrModeratorForwards { | ||
| _changeTargetTo(newTarget); | ||
| } | ||
|
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| /** | ||
| * @dev Forwards the encoded call specified by `_data` to the target. The forwarder attachs `_val` value | ||
| * from the forwarder contract and sends along with the call. | ||
| * | ||
| * Requirements: | ||
| * - Only moderator can call this method. | ||
| */ | ||
| function functionCall(bytes memory _data, uint256 _val) external payable onlyModerator { | ||
| _functionCall(_data, _val); | ||
| } | ||
|
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| /** | ||
| * @dev Calls a function from the current forwarder to the target as specified by `_data`, which should be an encoded | ||
| * function call, with the value `_val`. | ||
| */ | ||
| function _functionCall(bytes memory _data, uint256 _val) internal { | ||
| require(_val <= address(this).balance, "Forwarder: invalid forwarding value"); | ||
| _call(_target(), _data, _val); | ||
| } | ||
|
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| /** | ||
| * @dev Returns the current target address. | ||
| */ | ||
| function _target() internal view virtual override returns (address target_) { | ||
| return _getTarget(); | ||
| } | ||
| } |
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