Callable
Callable
Base contract to restrict access to certain functions, allowing calls only from a list of authorized addresses (allowedCallers).
Inherit from this contract and use the mustBeAllowedCaller modifier to protect functions.
The list of allowed callers is managed by the contract owner (from Ownable).
If ownership is renounced, only previously added allowed callers will be able to call the functions.
allowedCallers
mapping(address => bool) allowedCallers
Mapping storing the addresses authorized to call protected functions.
true if the address is allowed, false otherwise.
constructor
constructor() public
Initializes the contract, setting the deployer as the initial owner.
newAllowedCaller
function newAllowedCaller(address allowed) public
Allows the contract owner to add a new address to the list of allowed callers. If ownership is renounced, this function can no longer be performed.
Parameters
| Name | Type | Description |
|---|---|---|
| allowed | address | The address to add to the allowed callers list. |
isAllowedCaller
function isAllowedCaller(address caller) public view returns (bool)
Checks if a given address is currently in the list of allowed callers.
Parameters
| Name | Type | Description |
|---|---|---|
| caller | address | The address to check. |
Return Values
| Name | Type | Description |
|---|---|---|
| [0] | bool | bool True if the address is an allowed caller, false otherwise. |
mustBeAllowedCaller
modifier mustBeAllowedCaller()
Reverts if msg.sender is not an allowed caller.
Modifier to ensure that the function caller (msg.sender) is in the allowedCallers list.
mustBeContractCall
modifier mustBeContractCall(address addr)
Reverts if msg.sender is not addr.
Modifier to ensure that the function caller (msg.sender) is in the addr.
It is used to only allow calls from a specific contract address.