From 4aea9dd273720ba451e36fe1d224fd49b1424d0a Mon Sep 17 00:00:00 2001
From: Samyak Jain <34437877+KaymasJain@users.noreply.github.com>
Date: Fri, 16 Apr 2021 17:45:21 +0530
Subject: [PATCH] added instalist verification

---
 contracts/receivers/aave-v2-receiver/interfaces.sol | 4 ++++
 contracts/receivers/aave-v2-receiver/main.sol       | 3 ++-
 contracts/receivers/aave-v2-receiver/variables.sol  | 5 ++++-
 3 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/contracts/receivers/aave-v2-receiver/interfaces.sol b/contracts/receivers/aave-v2-receiver/interfaces.sol
index e15cf82..f481668 100644
--- a/contracts/receivers/aave-v2-receiver/interfaces.sol
+++ b/contracts/receivers/aave-v2-receiver/interfaces.sol
@@ -95,4 +95,8 @@ interface AaveInterface {
         uint256 ltv,
         uint256 healthFactor
     );
+}
+
+interface InstaListInterface {
+    function accountID(address) external view returns (uint);
 }
\ No newline at end of file
diff --git a/contracts/receivers/aave-v2-receiver/main.sol b/contracts/receivers/aave-v2-receiver/main.sol
index c28f021..1a20c19 100644
--- a/contracts/receivers/aave-v2-receiver/main.sol
+++ b/contracts/receivers/aave-v2-receiver/main.sol
@@ -99,7 +99,8 @@ contract AaveV2Migrator is MigrateResolver {
         address[] memory supplyTokens = data.supplyTokens;
         address[] memory borrowTokens = data.borrowTokens;
 
-        // TODO: before migrating make sure the new DSA is v2 DSA on L1.
+        // TODO: IMPORTANT!! before migrating make sure the new DSA is v2 DSA on L1.
+        require(instaList.accountID(dsa) != 0, "not-a-dsa");
 
         AaveInterface aave = AaveInterface(aaveProvider.getLendingPool());
 
diff --git a/contracts/receivers/aave-v2-receiver/variables.sol b/contracts/receivers/aave-v2-receiver/variables.sol
index 6e01591..e87decf 100644
--- a/contracts/receivers/aave-v2-receiver/variables.sol
+++ b/contracts/receivers/aave-v2-receiver/variables.sol
@@ -4,7 +4,8 @@ import {
     TokenMappingInterface,
     AaveLendingPoolProviderInterface,
     AaveDataProviderInterface,
-    IndexInterface
+    IndexInterface,
+    InstaListInterface
 } from "./interfaces.sol";
 
 contract Variables {
@@ -37,4 +38,6 @@ contract Variables {
     // Address which will receive L1 data and post it on L2
     address public maticReceiver = 0x0000000000000000000000000000000000001001;
 
+    InstaListInterface public instaList = InstaListInterface(0x839c2D3aDe63DF5b0b8F3E57D5e145057Ab41556);
+
 }
\ No newline at end of file