Skip to main content

_authorizeUpgrade

Function Type: internal
Access Control: isSuperUser
Function Signature: _authorizeUpgrade(address newImplementation)

Internal authorization function required by the UUPS (Universal Upgradeable Proxy Standard) pattern, ensuring only authorized parties can upgrade the contract implementation.

Parameters​

ParameterTypeDescription
newImplementationaddressAddress of the new implementation (unused)

Description​

This function is an internal override required by OpenZeppelin's UUPSUpgradeable contract. It serves as the authorization gate for contract upgrades, but in this implementation, the actual authorization logic is handled by the time-delayed governance system in acceptProposalUpgrade().

Access Control​

Modifier: isSuperUser

Only the current superUser can authorize upgrades, maintaining governance control over the upgrade process.

Implementation Details​

Workflow​

  1. Internal Access Control: Called internally by acceptProposalUpgrade() which already validates the caller is the current superUser.
  2. Proposal Validation: Verifies that a valid upgrade proposal exists with a non-zero implementation address.
  3. Time Delay Check: Confirms that the 7-day waiting period has elapsed through the timeElapsed modifier.
  4. Upgrade Authorization: Authorizes the UUPS proxy upgrade to proceed with the proposed implementation.