From a82e36c1d473d7fde5af52683f7a04f74a1c63c1 Mon Sep 17 00:00:00 2001
From: Amir Bandeali <abandeali1@gmail.com>
Date: Sun, 12 Aug 2018 19:33:37 -0500
Subject: Add ERC721Receiver that returns incorrect value

---
 packages/contracts/compiler.json                   |  1 +
 packages/contracts/package.json                    |  2 +-
 .../DummyERC721Receiver/InvalidERC721Receiver.sol  | 66 ++++++++++++++++++++++
 3 files changed, 68 insertions(+), 1 deletion(-)
 create mode 100644 packages/contracts/src/2.0.0/test/DummyERC721Receiver/InvalidERC721Receiver.sol

(limited to 'packages')

diff --git a/packages/contracts/compiler.json b/packages/contracts/compiler.json
index 0d938b8ea..60605e23b 100644
--- a/packages/contracts/compiler.json
+++ b/packages/contracts/compiler.json
@@ -33,6 +33,7 @@
         "Forwarder",
         "IAssetData",
         "IAssetProxy",
+        "InvalidERC721Receiver",
         "IValidator",
         "IWallet",
         "MixinAuthorizable",
diff --git a/packages/contracts/package.json b/packages/contracts/package.json
index 29a440bcc..b25b33c20 100644
--- a/packages/contracts/package.json
+++ b/packages/contracts/package.json
@@ -37,7 +37,7 @@
     },
     "config": {
         "abis":
-            "../migrations/artifacts/2.0.0/@(AssetProxyOwner|DummyERC20Token|DummyERC721Receiver|DummyERC721Token|DummyNoReturnERC20Token|ERC20Proxy|ERC721Proxy|Forwarder|Exchange|ExchangeWrapper|IAssetData|IAssetProxy|MixinAuthorizable|MultiSigWallet|MultiSigWalletWithTimeLock|TestAssetProxyOwner|TestAssetProxyDispatcher|TestConstants|TestExchangeInternals|TestLibBytes|TestLibs|TestSignatureValidator|Validator|Wallet|TokenRegistry|Whitelist|WETH9|ZRXToken).json"
+            "../migrations/artifacts/2.0.0/@(AssetProxyOwner|DummyERC20Token|DummyERC721Receiver|DummyERC721Token|DummyNoReturnERC20Token|ERC20Proxy|ERC721Proxy|Forwarder|Exchange|ExchangeWrapper|IAssetData|IAssetProxy|InvalidERC721Receiver|MixinAuthorizable|MultiSigWallet|MultiSigWalletWithTimeLock|TestAssetProxyOwner|TestAssetProxyDispatcher|TestConstants|TestExchangeInternals|TestLibBytes|TestLibs|TestSignatureValidator|Validator|Wallet|TokenRegistry|Whitelist|WETH9|ZRXToken).json"
     },
     "repository": {
         "type": "git",
diff --git a/packages/contracts/src/2.0.0/test/DummyERC721Receiver/InvalidERC721Receiver.sol b/packages/contracts/src/2.0.0/test/DummyERC721Receiver/InvalidERC721Receiver.sol
new file mode 100644
index 000000000..309633bf5
--- /dev/null
+++ b/packages/contracts/src/2.0.0/test/DummyERC721Receiver/InvalidERC721Receiver.sol
@@ -0,0 +1,66 @@
+/*
+
+  Copyright 2018 ZeroEx Intl.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+*/
+
+pragma solidity 0.4.24;
+
+import "../../tokens/ERC721Token/IERC721Receiver.sol";
+
+
+contract InvalidERC721Receiver is
+    IERC721Receiver
+{
+    // Actual function signature is `onERC721Received(address,address,uint256,bytes)`
+    bytes4 constant internal INVALID_ERC721_RECEIVED = bytes4(keccak256("onERC721Received(address,uint256,bytes)"));
+
+    event TokenReceived(
+        address operator,
+        address from,
+        uint256 tokenId,
+        bytes data
+    );
+
+    /// @notice Handle the receipt of an NFT
+    /// @dev The ERC721 smart contract calls this function on the recipient
+    ///      after a `transfer`. This function MAY throw to revert and reject the
+    ///      transfer. Return of other than the magic value MUST result in the
+    ///      transaction being reverted.
+    ///      Note: the contract address is always the message sender.
+    /// @param _operator The address which called `safeTransferFrom` function
+    /// @param _from The address which previously owned the token
+    /// @param _tokenId The NFT identifier which is being transferred
+    /// @param _data Additional data with no specified format
+    /// @return `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`
+    ///         unless throwing
+    function onERC721Received(
+        address _operator,
+        address _from,
+        uint256 _tokenId,
+        bytes _data
+    )
+        external
+        returns (bytes4)
+    {
+        emit TokenReceived(
+            _operator,
+            _from,
+            _tokenId,
+            _data
+        );
+        return INVALID_ERC721_RECEIVED;
+    }
+}
-- 
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