From 7c3e726df1c03455231e7c9f8ece36c8f034eff7 Mon Sep 17 00:00:00 2001
From: ChronosX88 <chronosx88@gmail.com>
Date: Tue, 27 Apr 2021 22:10:13 +0300
Subject: [PATCH] Disallow beginning dispute when beginner isn't Dione miner

---
 eth-contracts/contracts/DioneDispute.sol | 1 +
 1 file changed, 1 insertion(+)

diff --git a/eth-contracts/contracts/DioneDispute.sol b/eth-contracts/contracts/DioneDispute.sol
index 4acc37e..8b475a3 100644
--- a/eth-contracts/contracts/DioneDispute.sol
+++ b/eth-contracts/contracts/DioneDispute.sol
@@ -41,6 +41,7 @@ contract DioneDispute {
     function beginDispute(address miner, uint256 requestID) public {
         bytes32 dhash = keccak256(abi.encodePacked(miner, requestID));
         require(disputes[dhash].miner == address(0), "dispute already exists");
+        require(dioneStaking.isMiner(msg.sender), "caller isn't dione miner");
         Dispute storage dispute = disputes[dhash];
         dispute.dhash = dhash;
         dispute.sum = 0;