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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,42 @@ | ||
| sequenceDiagram | ||
| title Starport Refinance Sequence Diagram | ||
| participant F as Fulfiller | ||
| participant R as Refinancer | ||
| participant L as Lender | ||
| participant R as Recaller | ||
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| F->>LoanManager: refinance | ||
| LoanManager->>Pricing: isValidRefinance | ||
| Pricing->>LoanManager: (SpentItem[] ConsiderPayment, SpentItem[] CarryPayment, AdditionalTransfer[] AT) | ||
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| LoanManager->>LoanManager: settle loan | ||
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| loop Transfer 1->n ConsiderPayment items | ||
| R->>L: Move ConsiderPayment to Lender | ||
| end | ||
| opt CarryPayment length > 0 | ||
| R->>Originator: Move CarryPayment to Originator | ||
| end | ||
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| opt F is not Refinancer and F is not approved | ||
| loop Validate 1->n Caveats | ||
| LoanManager->>CaveatEnforcer: validate | ||
| end | ||
| end | ||
| opt AdditionalTransferItems length > 0 | ||
| LoanManager->>LoanManager: validateAdditionalTransfers | ||
| loop 1->n | ||
| alt From is Borrower | ||
| B->>AdditionalTransferRecipient: AdditionalTransferItem from Borrower -> AdditionalTransferRecipient | ||
| else From is Lender | ||
| L->>AdditionalTransferRecipient: AdditionalTransferItem from Lender -> AdditionalTransferRecipient | ||
| else From is F | ||
| F->>AdditionalTransferRecipient: AdditionalTransferItem from Fulfiller -> AdditionalTransferRecipient | ||
| end | ||
| end | ||
| end | ||
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| opt Lender is contract | ||
| LoanManager->>L: onERC721Received | ||
| end |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,35 @@ | ||
| sequenceDiagram | ||
| title Starport Settlement Sequence Diagram | ||
| participant F as Fulfiller | ||
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| F->>Seaport: fulfillAdvancedOrder/matchAdvancedOrder | ||
| Seaport->>Custodian: generateOrder | ||
| Custodian->>SettlementHook: isActive | ||
| SettlementHook->>Custodian: (true/false) | ||
| alt Action is Repayment and SettlementHook is Active | ||
| Custodian->>Custodian: _beforeApprovalsSetHook | ||
| Custodian->>Custodian: _setOfferApprovalsWithSeaport | ||
| Custodian->>Pricing: getPaymentConsideration | ||
| Pricing->>Custodian: (SpentItem[] payment, SpentItem[] carry) | ||
| Custodian->>LoanManager: settle loan | ||
| else Action Settlement and Custodian->>SettlementHook: isActive is false | ||
| Custodian->>Custodian: _beforeGetSettlement | ||
| Custodian->>SettlementHandler: getSettlement | ||
| SettlementHandler->>Custodian: (ReceivedItem[] consideration, address authorized) | ||
| Custodian->>Custodian: _afterGetSettlement | ||
| alt authorized is address(0) || authorized is Fulfiller | ||
| Custodian->>Custodian: _beforeApprovalsSetHook | ||
| Custodian->>Custodian: _setOfferApprovalsWithSeaport | ||
| else authorized is loan handler || authorized is loan issuer | ||
| Custodian->>Custodian: _moveCollateralToAuthorized | ||
| Custodian->>Custodian: _beforeSettlementHandlerHook | ||
| alt authorized is loan handler | ||
| Custodian->>SettlementHandler: execute | ||
| Custodian->>Custodian: _afterSettlementHandlerHook | ||
| end | ||
| end | ||
| Custodian->>LoanManager: settle loan | ||
| opt Lender is contract | ||
| LoanManager->>Lender: onLoanSettledHook | ||
| end | ||
| end |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,67 @@ | ||
| import {Ownable} from "solady/src/auth/Ownable.sol"; | ||
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| abstract contract PausableNonReentrant is Ownable { | ||
| uint256 private constant _UNLOCKED = 0x1; | ||
| uint256 private constant _LOCKED = 0x2; | ||
| uint256 private constant _PAUSED = 0x3; | ||
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| uint256 private _state = _UNLOCKED; | ||
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| event Paused(); | ||
| event Unpaused(); | ||
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| error IsPaused(); | ||
| error IsLocked(); | ||
| error NotPaused(); | ||
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| modifier pausableNonReentrant() { | ||
| assembly { | ||
| //If locked or paused, handle revert cases | ||
| if gt(sload(_state.slot), _UNLOCKED) { | ||
| if gt(sload(_state.slot), _LOCKED) { | ||
| //Revert IsPaused | ||
| mstore(0, 0x1309a563) | ||
| revert(0x1c, 0x04) | ||
| } | ||
| //Revert IsLocked | ||
| mstore(0, 0xcaa30f55) | ||
| revert(0x1c, 0x04) | ||
| } | ||
| sstore(_state.slot, _LOCKED) | ||
| } | ||
| _; | ||
| assembly { | ||
| sstore(_state.slot, _UNLOCKED) | ||
| } | ||
| } | ||
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| function pause() external onlyOwner { | ||
| assembly { | ||
| //If locked, prevent owner from overriding state | ||
| if eq(sload(_state.slot), _LOCKED) { | ||
| //Revert IsLocked | ||
| mstore(0, 0xcaa30f55) | ||
| revert(0x1c, 0x04) | ||
| } | ||
| sstore(_state.slot, _PAUSED) | ||
| } | ||
| emit Paused(); | ||
| } | ||
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| function unpause() external onlyOwner { | ||
| assembly { | ||
| //If not paused, prevent owner from overriding state | ||
| if lt(sload(_state.slot), _PAUSED) { | ||
| //Revert NotPaused | ||
| mstore(0, 0x6cd60201) | ||
| revert(0x1c, 0x04) | ||
| } | ||
| sstore(_state.slot, _UNLOCKED) | ||
| } | ||
| emit Unpaused(); | ||
| } | ||
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| function paused() external view returns (bool) { | ||
| return _state == _PAUSED; | ||
| } | ||
| } |
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