Merge branch 'development' into fix/ether_token_address

1 files changed, 32 insertions, 0 deletions

diff --git a/packages/contracts/src/current/utils/Ownable/Ownable.sol b/packages/contracts/src/current/utils/Ownable/Ownable.sol
new file mode 100644
index 000000000..9b3d6b9cf
--- /dev/null
+++ b/packages/contracts/src/current/utils/Ownable/Ownable.sol
@@ -0,0 +1,32 @@
+pragma solidity ^0.4.18;
+
+/*
+ * Ownable
+ *
+ * Base contract with an owner.
+ * Provides onlyOwner modifier, which prevents function from running if it is called by anyone other than the owner.
+ */
+
+contract Ownable {
+    address public owner;
+
+    function Ownable()
+        public
+    {
+        owner = msg.sender;
+    }
+
+    modifier onlyOwner() {
+        require(msg.sender == owner);
+        _;
+    }
+
+    function transferOwnership(address newOwner)
+        public
+        onlyOwner
+    {
+        if (newOwner != address(0)) {
+            owner = newOwner;
+        }
+    }
+}