feat: ensure relative timestamps (#64)

docs/src/content/modules/dispute/bond_escalation_module.md

@@ -24,7 +24,7 @@ The Bond Escalation Module is a contract that allows users to have the first dis
 - `bondToken`: The address of the token associated with the given request.
 - `bondSize`: The amount to bond to dispute or propose an answer for the given request.
 - `maxNumberOfEscalations`: The maximum allowed escalations or pledges for each side during the bond escalation process.
-- `bondEscalationDeadline`: The timestamp at which bond escalation process finishes when pledges are not tied.
+- `bondEscalationDeadline`: The number of seconds after dispute creation required to finish the bond escalation process when pledges are not tied.
 - `tyingBuffer`: The number of seconds to extend the bond escalation process to allow the losing party to tie if at the end of the initial deadline the pledges weren't tied.
 - `disputeWindow`: The number of seconds disputers have to challenge the proposed response since its creation.
 

docs/src/content/modules/response/bonded_response_module.md

@@ -20,7 +20,7 @@ The Bonded Response Module is a contract that allows users to propose a response
 - `accountingExtension`: The address holding the bonded tokens. It must implement the [IAccountingExtension.sol](/solidity/interfaces/extensions/IAccountingExtension.sol/interface.IAccountingExtension.md) interface.
 - `bondToken`: The ERC20 token used for bonding.
 - `bondSize`: The amount of tokens the disputer must bond to be able to dispute a response.
-- `deadline`: The timestamp at which the module stops accepting new responses for a request and it becomes finalizable.
+- `deadline`: The number of seconds after request creation at which the module stops accepting new responses for a request and it becomes finalizable.
 
 ## 3. Key Mechanisms & Concepts
 

solidity/contracts/modules/dispute/BondEscalationModule.sol

@@ -57,7 +57,9 @@ contract BondEscalationModule is Module, IBondEscalationModule {
     // Only the first dispute of a request should go through the bond escalation
     // Consecutive disputes should be handled by the resolution module
     if (_escalation.status == BondEscalationStatus.None) {
-      if (block.timestamp > _params.bondEscalationDeadline) revert BondEscalationModule_BondEscalationOver();
+      if (block.timestamp > ORACLE.disputeCreatedAt(_disputeId) + _params.bondEscalationDeadline) {
+        revert BondEscalationModule_BondEscalationOver();
+      }
       _escalation.status = BondEscalationStatus.Active;
       _escalation.disputeId = _disputeId;
       emit BondEscalationStatusUpdated(_dispute.requestId, _disputeId, BondEscalationStatus.Active);
@@ -83,7 +85,9 @@ contract BondEscalationModule is Module, IBondEscalationModule {
       if (_disputeStatus == IOracle.DisputeStatus.Escalated) {
         // The dispute has been escalated to the Resolution module
         // Make sure the bond escalation deadline has passed and update the status
-        if (block.timestamp <= _params.bondEscalationDeadline) revert BondEscalationModule_BondEscalationNotOver();
+        if (block.timestamp <= ORACLE.disputeCreatedAt(_disputeId) + _params.bondEscalationDeadline) {
+          revert BondEscalationModule_BondEscalationNotOver();
+        }
 
         if (
           _escalation.status != BondEscalationStatus.Active
@@ -252,7 +256,8 @@ contract BondEscalationModule is Module, IBondEscalationModule {
     RequestParameters memory _params = decodeRequestData(_request.disputeModuleData);
     BondEscalation storage _escalation = _escalations[_dispute.requestId];
 
-    if (block.timestamp <= _params.bondEscalationDeadline + _params.tyingBuffer) {
+    uint256 _disputeCreatedAt = ORACLE.disputeCreatedAt(_disputeId);
+    if (block.timestamp <= _disputeCreatedAt + _params.bondEscalationDeadline + _params.tyingBuffer) {
       revert BondEscalationModule_BondEscalationNotOver();
     }
 
@@ -290,6 +295,7 @@ contract BondEscalationModule is Module, IBondEscalationModule {
     bool _forDispute
   ) internal view returns (RequestParameters memory _params) {
     bytes32 _disputeId = _validateDispute(_request, _dispute);
+
     BondEscalation memory _escalation = _escalations[_dispute.requestId];
 
     if (_disputeId != _escalation.disputeId) {
@@ -298,7 +304,8 @@ contract BondEscalationModule is Module, IBondEscalationModule {
 
     _params = decodeRequestData(_request.disputeModuleData);
 
-    if (block.timestamp > _params.bondEscalationDeadline + _params.tyingBuffer) {
+    uint256 _disputeCreatedAt = ORACLE.disputeCreatedAt(_disputeId);
+    if (block.timestamp > _disputeCreatedAt + _params.bondEscalationDeadline + _params.tyingBuffer) {
       revert BondEscalationModule_BondEscalationOver();
     }
 
@@ -317,7 +324,10 @@ contract BondEscalationModule is Module, IBondEscalationModule {
       if (_numPledgersAgainstDispute > _numPledgersForDispute) revert BondEscalationModule_CanOnlySurpassByOnePledge();
     }
 
-    if (block.timestamp > _params.bondEscalationDeadline && _numPledgersForDispute == _numPledgersAgainstDispute) {
+    if (
+      block.timestamp > _disputeCreatedAt + _params.bondEscalationDeadline
+        && _numPledgersForDispute == _numPledgersAgainstDispute
+    ) {
       revert BondEscalationModule_CannotBreakTieDuringTyingBuffer();
     }
   }

solidity/contracts/modules/response/BondedResponseModule.sol

@@ -28,7 +28,8 @@ contract BondedResponseModule is Module, IBondedResponseModule {
     RequestParameters memory _params = decodeRequestData(_request.responseModuleData);
 
     // Cannot propose after the deadline
-    if (block.timestamp >= _params.deadline) revert BondedResponseModule_TooLateToPropose();
+    uint256 _requestCreatedAt = ORACLE.requestCreatedAt(_response.requestId);
+    if (block.timestamp >= _requestCreatedAt + _params.deadline) revert BondedResponseModule_TooLateToPropose();
 
     // Cannot propose to a request with a response, unless the response is being disputed
     bytes32[] memory _responseIds = ORACLE.getResponseIds(_response.requestId);
@@ -75,12 +76,11 @@ contract BondedResponseModule is Module, IBondedResponseModule {
 
     bool _isModule = ORACLE.allowedModule(_response.requestId, _finalizer);
 
-    if (!_isModule && block.timestamp < _params.deadline) {
+    if (!_isModule && block.timestamp < ORACLE.requestCreatedAt(_response.requestId) + _params.deadline) {
       revert BondedResponseModule_TooEarlyToFinalize();
     }
 
     uint256 _responseCreatedAt = ORACLE.responseCreatedAt(_getId(_response));
-
     if (_responseCreatedAt != 0) {
       if (!_isModule && block.timestamp < _responseCreatedAt + _params.disputeWindow) {
         revert BondedResponseModule_TooEarlyToFinalize();

solidity/interfaces/modules/dispute/IBondEscalationModule.sol

@@ -134,7 +134,8 @@ interface IBondEscalationModule is IDisputeModule {
    * @param bondToken                  Address of the token associated with the given request
    * @param bondSize                   Amount to bond to dispute or propose an answer for the given request
    * @param maxNumberOfEscalations     Maximum allowed escalations or pledges for each side during the bond escalation process
-   * @param bondEscalationDeadline     Timestamp at which bond escalation process finishes when pledges are not tied
+   * @param bondEscalationDeadline     Number of seconds after dispute creation required to
+   *                                       finish the bond escalation process when pledges are not tied.
    * @param tyingBuffer                Number of seconds to extend the bond escalation process to allow the losing
    *                                    party to tie if at the end of the initial deadline the pledges weren't tied.
    * @param disputeWindow              Number of seconds disputers have to challenge the proposed response since its creation.

solidity/test/integration/BondEscalation.t.sol

@@ -23,8 +23,8 @@ contract Integration_BondEscalation is IntegrationBase {
   function setUp() public override {
     super.setUp();
 
-    _expectedDeadline = block.timestamp + 10 days;
-    _bondEscalationDeadline = block.timestamp + 5 days;
+    _expectedDeadline = 10 days;
+    _bondEscalationDeadline = 5 days;
 
     setUpRequest();
     setUpEscalation();
@@ -128,7 +128,7 @@ contract Integration_BondEscalation is IntegrationBase {
     // Step 4: Disputer runs out of capital
     // Step 5: External parties see that Disputer's dispute was wrong so they don't join to escalate
     // Step 6: Proposer response's is deemed correct and final once the bond escalation window is over
-    vm.warp(_expectedDeadline + _tyingBuffer + 1);
+    vm.warp(block.timestamp + _expectedDeadline + _tyingBuffer + 1);
     _bondEscalationModule.settleBondEscalation(mockRequest, mockResponse, mockDispute);
 
     IOracle.DisputeStatus _disputeStatus = oracle.disputeStatus(_disputeId);
@@ -152,7 +152,7 @@ contract Integration_BondEscalation is IntegrationBase {
     assertEq(_bondEscalationAccounting.balanceOf(disputer, usdc), 0, 'Mismatch: Disputer balance');
 
     // Step 8: Finalize request and check balances again
-    vm.warp(_expectedDeadline + 1 days);
+    vm.warp(block.timestamp + _expectedDeadline + 1 days);
     oracle.finalize(mockRequest, mockResponse);
 
     // Test: The requester has no balance because he has paid the proposer
@@ -189,7 +189,7 @@ contract Integration_BondEscalation is IntegrationBase {
     // External parties see that Proposer's proposal was wrong so they don't join to escalate
 
     // Step 5: Proposer response's is deemed incorrect. The bond escalation process along with the tying buffer is terminated
-    vm.warp(_bondEscalationDeadline + _tyingBuffer + 1);
+    vm.warp(block.timestamp + _bondEscalationDeadline + _tyingBuffer + 1);
     _bondEscalationModule.settleBondEscalation(mockRequest, mockResponse, mockDispute);
 
     IOracle.DisputeStatus _disputeStatus = oracle.disputeStatus(_disputeId);
@@ -248,7 +248,7 @@ contract Integration_BondEscalation is IntegrationBase {
     _responseId = oracle.proposeResponse(mockRequest, _thirdResponse);
 
     // Step 11: It goes undisputed for three days, therefore it's deemed correct and final
-    vm.warp(_expectedDeadline + 1);
+    vm.warp(block.timestamp + _expectedDeadline + 1);
     oracle.finalize(mockRequest, _thirdResponse);
 
     // Test: The requester has paid out the reward
@@ -283,7 +283,7 @@ contract Integration_BondEscalation is IntegrationBase {
 
     // Step 12: Two days after the deadline, the resolution module says that Another proposer's answer was correct
     // So Another proposer gets paid Disputer's bond
-    vm.warp(_expectedDeadline + 2 days);
+    vm.warp(block.timestamp + _expectedDeadline + 2 days);
     _mockArbitrator.setAnswer(IOracle.DisputeStatus.Lost);
     oracle.resolveDispute(mockRequest, _secondResponse, _secondDispute);
 
@@ -340,7 +340,7 @@ contract Integration_BondEscalation is IntegrationBase {
 
     // Step 4: Disputer runs out of capital
     // Step 5: The tying buffer kicks in
-    vm.warp(_bondEscalationDeadline + 1);
+    vm.warp(block.timestamp + _bondEscalationDeadline + 1);
 
     // Step 6: An external party sees that Proposer's response is incorrect, so they bond the required WETH
     _deposit(_bondEscalationAccounting, _secondDisputer, usdc, _pledgeSize);
@@ -420,7 +420,7 @@ contract Integration_BondEscalation is IntegrationBase {
     _bondEscalationModule.pledgeForDispute(mockRequest, mockDispute);
 
     // Step 6: Proposer loses in resolution
-    vm.warp(_bondEscalationDeadline + 1);
+    vm.warp(block.timestamp + _bondEscalationDeadline + 1);
     oracle.escalateDispute(mockRequest, mockResponse, mockDispute);
     oracle.resolveDispute(mockRequest, mockResponse, mockDispute);
 
@@ -470,7 +470,7 @@ contract Integration_BondEscalation is IntegrationBase {
 
     // Step 4: Disputer runs out of capital
     // Step 5: The tying buffer kicks in
-    vm.warp(_bondEscalationDeadline + 1);
+    vm.warp(block.timestamp + _bondEscalationDeadline + 1);
 
     // Step 6: An external party sees that Proposer's response is incorrect, so they bond the required WETH
     _deposit(_bondEscalationAccounting, _secondDisputer, usdc, _pledgeSize);
@@ -531,7 +531,7 @@ contract Integration_BondEscalation is IntegrationBase {
 
     // Step 4: Disputer runs out of capital
     // Step 5: The tying buffer kicks in
-    vm.warp(_bondEscalationDeadline + 1);
+    vm.warp(block.timestamp + _bondEscalationDeadline + 1);
 
     // Step 6: An external party sees that Proposer's response is incorrect, so they bond the required WETH
     _deposit(_bondEscalationAccounting, _secondDisputer, usdc, _pledgeSize);

solidity/test/integration/EscalateDispute.t.sol

@@ -95,7 +95,7 @@ contract Integration_EscalateDispute is IntegrationBase {
     );
 
     // We escalate the dispute
-    _mineBlocks(_blocksDeadline + 1);
+    vm.warp(block.timestamp + _expectedDeadline + 1);
     oracle.escalateDispute(mockRequest, mockResponse, mockDispute);
 
     // We check that the dispute was escalated

solidity/test/integration/Finalization.t.sol

@@ -27,7 +27,7 @@ contract Integration_Finalization is IntegrationBase {
     _proposeResponse();
 
     // Traveling to the end of the dispute window
-    vm.warp(_expectedDeadline + 1 + _baseDisputeWindow);
+    vm.warp(block.timestamp + _expectedDeadline + 1 + _baseDisputeWindow);
 
     // Check: all external calls are made?
     vm.expectCall(address(_mockCallback), abi.encodeWithSelector(IProphetCallback.prophetCallback.selector, _calldata));
@@ -70,7 +70,7 @@ contract Integration_Finalization is IntegrationBase {
    * @notice Finalizing a request with a ongoing dispute reverts.
    */
   function test_revertFinalizeInDisputeWindow(uint256 _timestamp) public {
-    _timestamp = bound(_timestamp, block.timestamp, _expectedDeadline - _baseDisputeWindow - 1);
+    _timestamp = bound(_timestamp, block.timestamp, block.timestamp + _expectedDeadline - _baseDisputeWindow - 1);
 
     _createRequest();
     _proposeResponse();
@@ -96,7 +96,7 @@ contract Integration_Finalization is IntegrationBase {
     _proposeResponse();
 
     // Traveling to the end of the dispute window
-    vm.warp(_expectedDeadline + 1 + _baseDisputeWindow);
+    vm.warp(block.timestamp + _expectedDeadline + 1 + _baseDisputeWindow);
 
     vm.expectCall(address(_mockCallback), abi.encodeWithSelector(IProphetCallback.prophetCallback.selector, _calldata));
     vm.prank(_finalizer);

solidity/test/integration/IntegrationBase.sol

@@ -79,12 +79,11 @@ contract IntegrationBase is DSTestPlus, TestConstants, Helpers {
   string internal _expectedResponse = '{"ethereum":{"usd":1000}}';
   uint256 internal _expectedBondSize = 100 ether;
   uint256 internal _expectedReward = 30 ether;
-  uint256 internal _expectedDeadline;
   uint256 internal _expectedCallbackValue = 42;
-  uint256 internal _baseDisputeWindow = 120 * BLOCK_TIME;
   bytes32 internal _ipfsHash = bytes32('QmR4uiJH654k3Ta2uLLQ8r');
   uint256 internal _blocksDeadline = 600;
-  uint256 internal _timestampDeadline = _blocksDeadline * BLOCK_TIME;
+  uint256 internal _baseDisputeWindow = 6 hours;
+  uint256 internal _expectedDeadline = 10 days;
 
   function setUp() public virtual {
     vm.createSelectFork(vm.rpcUrl('optimism'), FORK_BLOCK);
@@ -135,9 +134,6 @@ contract IntegrationBase is DSTestPlus, TestConstants, Helpers {
     _mockArbitrator = new MockArbitrator();
     vm.stopPrank();
 
-    // Set the expected deadline
-    _expectedDeadline = block.timestamp + _timestampDeadline;
-
     // Configure the mock request
     mockRequest.requestModuleData = abi.encode(
       IHttpRequestModule.RequestParameters({

solidity/test/integration/Payments.t.sol

@@ -26,7 +26,7 @@ contract Integration_Payments is IntegrationBase {
     assertEq(_accountingExtension.bondedAmountOf(proposer, usdc, _requestId), _bondSize);
 
     // Warp to finalization time.
-    vm.warp(_expectedDeadline + _baseDisputeWindow);
+    vm.warp(block.timestamp + _expectedDeadline + _baseDisputeWindow);
 
     // Finalize request/response
     oracle.finalize(mockRequest, mockResponse);
@@ -66,7 +66,7 @@ contract Integration_Payments is IntegrationBase {
     assertEq(_accountingExtension.bondedAmountOf(proposer, weth, _requestId), _bondSize);
 
     // Warp to finalization time.
-    vm.warp(_expectedDeadline + _baseDisputeWindow);
+    vm.warp(block.timestamp + _expectedDeadline + _baseDisputeWindow);
     // Finalize request/response.
     oracle.finalize(mockRequest, mockResponse);
 

solidity/test/integration/ResponseDispute.t.sol

@@ -83,7 +83,7 @@ contract Integration_ResponseDispute is IntegrationBase {
    * @notice Disputing a finalized response should revert
    */
   function test_disputeResponse_alreadyFinalized() public {
-    vm.warp(_expectedDeadline + _baseDisputeWindow);
+    vm.warp(block.timestamp + _expectedDeadline + _baseDisputeWindow);
     oracle.finalize(mockRequest, mockResponse);
 
     vm.expectRevert(abi.encodeWithSelector(IOracle.Oracle_AlreadyFinalized.selector, _getId(mockRequest)));

solidity/test/integration/ResponseProposal.t.sol

@@ -47,11 +47,11 @@ contract Integration_ResponseProposal is IntegrationBase {
   /**
    * @notice Proposing a response after the deadline reverts
    */
-  function test_proposeResponse_afterDeadline(uint256 _timestamp, bytes memory _responseBytes) public {
-    vm.assume(_timestamp > _expectedDeadline);
+  function test_proposeResponse_afterDeadline(uint256 _secondsAfter, bytes memory _responseBytes) public {
+    _secondsAfter = bound(_secondsAfter, 1, type(uint248).max);
 
     // Warp to timestamp after deadline
-    vm.warp(_timestamp);
+    vm.warp(block.timestamp + _expectedDeadline + _secondsAfter);
 
     mockResponse.response = _responseBytes;
 

solidity/test/integration/RootVerification.t.sol

@@ -106,7 +106,7 @@ contract Integration_RootVerification is IntegrationBase {
     vm.prank(proposer);
     oracle.proposeResponse(mockRequest, mockResponse);
 
-    vm.warp(_expectedDeadline + _baseDisputeWindow);
+    vm.warp(block.timestamp + _expectedDeadline + _baseDisputeWindow);
 
     oracle.finalize(mockRequest, mockResponse);
   }