[sepolia] Incident practice - pause and unpause Sepolia (#126)

* Add auto-generated contracts and set up .env file

* Remove unneeded files and info

* Remove unneeded Makefile commands

* Refactor for EOA

* Remove constant type due to compiler issues

* Add require statements and slightly refactor

* Update Makefile for EOA signing and broadcasting

* Use addr for broadcasting

Author: nadir-akhtar-coinbase

sepolia/2024-02-28-pause-unpause-portal/.env

@@ -0,0 +1,6 @@
+OP_COMMIT=10b06fb49861053999a89533d846ee5c2ccb33e1
+BASE_CONTRACTS_COMMIT=fe492be3478134b2305c207a12b153eca04148c0
+
+GUARDIAN=0xA9FF930151130fd19DA1F03E5077AFB7C78F8503
+OPTIMISM_PORTAL_PROXY=0x49f53e41452C74589E85cA1677426Ba426459e85
+GUARDIAN_PRIVATE_KEY= # TODO: Fill in when running script

sepolia/2024-02-28-pause-unpause-portal/Makefile

@@ -0,0 +1,29 @@
+include ../../Makefile
+include ../.env
+include .env
+
+ifndef LEDGER_ACCOUNT
+override LEDGER_ACCOUNT = 0
+endif
+
+##
+# Incident response commands
+# Note that --ledger --hd-paths <PATH> can be replaced with --private-key $(PRIVATE_KEY)
+# in any command when using a local key.
+##
+
+# Pause OptimismPortal Commands
+
+.PHONY: pause-portal
+pause-portal: deps
+	forge script --rpc-url $(L1_RPC_URL) \
+	PausePortal --private-key $(GUARDIAN_PRIVATE_KEY) \
+	--broadcast
+
+# Unpause OptimismPortal Commands
+
+.PHONY: unpause-portal
+unpause-portal: deps
+	forge script --rpc-url $(L1_RPC_URL) \
+	UnpausePortal --private-key $(GUARDIAN_PRIVATE_KEY) \
+	--broadcast

sepolia/2024-02-28-pause-unpause-portal/foundry.toml

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+[profile.default]
+src = 'src'
+out = 'out'
+libs = ['lib']
+broadcast = 'records'
+fs_permissions = [ {access = "read-write", path = "./"} ]
+optimizer = true
+optimizer_runs = 999999
+solc_version = "0.8.15"
+via-ir = true
+remappings = [
+    '@eth-optimism-bedrock/=lib/optimism/packages/contracts-bedrock/',
+    '@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts',
+    '@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts',
+    '@rari-capital/solmate/=lib/solmate/',
+    '@base-contracts/=lib/base-contracts'
+]
+
+# See more config options https://github.com/foundry-rs/foundry/tree/master/config

sepolia/2024-02-28-pause-unpause-portal/script/PausePortal.s.sol

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+// SPDX-License-Identifier: MIT
+pragma solidity 0.8.15;
+
+import "forge-std/Script.sol";
+import "@eth-optimism-bedrock/src/L1/OptimismPortal.sol";
+
+contract PausePortal is Script {
+    address internal OPTIMISM_PORTAL_PROXY = vm.envAddress("OPTIMISM_PORTAL_PROXY");
+    address internal GUARDIAN = vm.envAddress("GUARDIAN");
+
+    function run() external {
+        OptimismPortal optimismPortal = OptimismPortal(payable(OPTIMISM_PORTAL_PROXY));
+
+        vm.broadcast(GUARDIAN);
+        optimismPortal.pause();
+
+        require(optimismPortal.paused() == true, "PausePortal: failed to pause");
+    }
+}

sepolia/2024-02-28-pause-unpause-portal/script/UnpausePortal.s.sol

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+// SPDX-License-Identifier: MIT
+pragma solidity 0.8.15;
+
+import "forge-std/Script.sol";
+import "@eth-optimism-bedrock/src/L1/OptimismPortal.sol";
+
+contract UnpausePortal is Script {
+    address internal OPTIMISM_PORTAL_PROXY = vm.envAddress("OPTIMISM_PORTAL_PROXY");
+    address internal GUARDIAN = vm.envAddress("GUARDIAN");
+
+    function run() external {
+        OptimismPortal optimismPortal = OptimismPortal(payable(OPTIMISM_PORTAL_PROXY));
+
+        vm.broadcast(GUARDIAN);
+        optimismPortal.unpause();
+
+        require(optimismPortal.paused() == false, "PausePortal: failed to unpause");
+    }
+}