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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,7 @@ | ||
| // SPDX-License-Identifier: MIT | ||
| pragma solidity ^0.8.28; | ||
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| interface IIBCPausableUpgradeableErrors { | ||
| /// @notice Error code returned when caller is not the pauser | ||
| error Unauthorized(); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,22 @@ | ||
| // SPDX-License-Identifier: MIT | ||
| pragma solidity ^0.8.28; | ||
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| interface IIBCPausableUpgradeable { | ||
| /// @notice Returns the pauser address | ||
| /// @return The pauser address | ||
| function getPauser() external view returns (address); | ||
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| /// @notice Pauses the contract | ||
| /// @dev The caller must be the pauser | ||
| function pause() external; | ||
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| /// @notice Unpauses the contract | ||
| /// @dev The caller must be the pauser | ||
| function unpause() external; | ||
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| /// @notice Sets the pauser address | ||
| /// @dev Must be authorized by this contract | ||
| /// @dev This operation cannot be paused | ||
| /// @param pauser The new pauser address | ||
| function setPauser(address pauser) external; | ||
| } |
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| @@ -0,0 +1,79 @@ | ||
| // SPDX-License-Identifier: MIT | ||
| pragma solidity ^0.8.28; | ||
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| import { IIBCPausableUpgradeableErrors } from "../errors/IIBCPausableUpgradeableErrors.sol"; | ||
| import { IIBCPausableUpgradeable } from "../interfaces/IIBCPausableUpgradeable.sol"; | ||
| import { ContextUpgradeable } from "@openzeppelin-upgradeable/utils/ContextUpgradeable.sol"; | ||
| import { PausableUpgradeable } from "@openzeppelin-upgradeable/utils/PausableUpgradeable.sol"; | ||
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| /// @title IBC Pausable Upgradeable contract | ||
| /// @notice This contract is an abstract contract for adding pausability to IBC contracts. | ||
| abstract contract IBCPausableUpgradeable is | ||
| IIBCPausableUpgradeableErrors, | ||
| IIBCPausableUpgradeable, | ||
| ContextUpgradeable, | ||
| PausableUpgradeable | ||
| { | ||
| /// @notice Storage of the IBCPausableUpgradeable contract | ||
| /// @dev It's implemented on a custom ERC-7201 namespace to reduce the risk of storage collisions when using with | ||
| /// upgradeable contracts. | ||
| /// @param _pauser The address that can pause and unpause the contract | ||
| struct IBCPausableUpgradeableStorage { | ||
| address _pauser; | ||
| } | ||
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| /// @notice ERC-7201 slot for the IBCPausableUpgradeable storage | ||
| /// @dev keccak256(abi.encode(uint256(keccak256("ibc.storage.IBCPausableUpgradeable")) - 1)) & | ||
| /// ~bytes32(uint256(0xff)) | ||
| bytes32 private constant IBCPAUSABLEUPGRADEABLE_STORAGE_SLOT = | ||
| 0x3cb0d659d6ec9ab9509297c9cf14e29ed0165d10590ef43eb31ba393e648af00; | ||
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| /** | ||
| * @dev Initializes the contract in unpaused state. | ||
| */ | ||
| function __IBCPausable_init(address pauser) internal onlyInitializing { | ||
| __Pausable_init(); | ||
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| _getIBCPausableUpgradeableStorage()._pauser = pauser; | ||
| } | ||
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| /// @inheritdoc IIBCPausableUpgradeable | ||
| function getPauser() public view returns (address) { | ||
| return _getIBCPausableUpgradeableStorage()._pauser; | ||
| } | ||
|
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| /// @inheritdoc IIBCPausableUpgradeable | ||
| function pause() external onlyPauser { | ||
| _pause(); | ||
| } | ||
|
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| /// @inheritdoc IIBCPausableUpgradeable | ||
| function unpause() external onlyPauser { | ||
| _unpause(); | ||
| } | ||
|
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| /// @inheritdoc IIBCPausableUpgradeable | ||
| function setPauser(address pauser) public { | ||
| _authorizeSetPauser(pauser); | ||
| _getIBCPausableUpgradeableStorage()._pauser = pauser; | ||
| } | ||
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| /// @notice Authorizes the setting of a new pauser | ||
| /// @param pauser The new address that can pause and unpause the contract | ||
| /// @dev This function must be overridden to add authorization logic | ||
| function _authorizeSetPauser(address pauser) internal virtual; | ||
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| /// @notice Returns the storage of the IBCPausableUpgradeable contract | ||
| function _getIBCPausableUpgradeableStorage() internal pure returns (IBCPausableUpgradeableStorage storage $) { | ||
| // solhint-disable-next-line no-inline-assembly | ||
| assembly { | ||
| $.slot := IBCPAUSABLEUPGRADEABLE_STORAGE_SLOT | ||
| } | ||
| } | ||
|
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| /// @notice Modifier to make a function callable only by the pauser | ||
| modifier onlyPauser() { | ||
| require(_msgSender() == getPauser(), Unauthorized()); | ||
| _; | ||
| } | ||
| } |
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