Merge pull request #39 from near/bridged-erc20-back

feat: almost send a Bridged NEP21 back to Ethereum

.config.js

@@ -27,6 +27,7 @@ module.exports = {
   },
   development: {
     ethClientAddress: '0xF721c979db97413AA9D0F91ad531FaBF769bb09C',
+    ethNearOnEthClientAbiText: readFileSync('./nearOnEthClient.abi'),
     ethEd25519Address: '0x9003342d15B21b4C42e1702447fE2f39FfAF55C2',
     ethErc20AbiText: readFileSync('./erc20.abi'),
     featuredErc20s:
@@ -40,6 +41,7 @@ module.exports = {
     ethNetwork: 'rinkeby',
     ethNodeUrl: 'https://rinkeby.infura.io/v3/TODO',
     ethProverAddress: '0xc5D62d66B8650E6242D9936c7e50E959BA0F9E37',
+    ethProverAbiText: readFileSync('./prover.abi'),
     nearClientAccount: 'ethonnearclient10',
     nearHelperUrl: 'https://helper.testnet.near.org/',
     nearNetworkId: 'testnet',

nearOnEthClient.abi

@@ -0,0 +1 @@
+[{"inputs":[{"internalType":"contract Ed25519","name":"ed","type":"address"},{"internalType":"uint256","name":"lockEthAmount_","type":"uint256"},{"internalType":"uint256","name":"lockDuration_","type":"uint256"},{"internalType":"uint256","name":"replaceDuration_","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint64","name":"height","type":"uint64"},{"indexed":false,"internalType":"bytes32","name":"blockHash","type":"bytes32"}],"name":"BlockHashAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint64","name":"height","type":"uint64"},{"indexed":false,"internalType":"bytes32","name":"blockHash","type":"bytes32"}],"name":"BlockHashReverted","type":"event"},{"inputs":[{"internalType":"bytes","name":"data","type":"bytes"}],"name":"addLightClientBlock","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint64","name":"height","type":"uint64"}],"name":"blockHashes","outputs":[{"internalType":"bytes32","name":"res","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint64","name":"height","type":"uint64"}],"name":"blockMerkleRoots","outputs":[{"internalType":"bytes32","name":"res","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"bridgeState","outputs":[{"components":[{"internalType":"uint256","name":"currentHeight","type":"uint256"},{"internalType":"uint256","name":"nextTimestamp","type":"uint256"},{"internalType":"uint256","name":"nextValidAt","type":"uint256"},{"internalType":"uint256","name":"numBlockProducers","type":"uint256"}],"internalType":"struct NearBridge.BridgeState","name":"res","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address payable","name":"receiver","type":"address"},{"internalType":"uint256","name":"signatureIndex","type":"uint256"}],"name":"challenge","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"signatureIndex","type":"uint256"}],"name":"checkBlockProducerSignatureInHead","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"deposit","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes","name":"data","type":"bytes"}],"name":"initWithBlock","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes","name":"initialValidators_","type":"bytes"}],"name":"initWithValidators","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"initialized","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lockDuration","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lockEthAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"replaceDuration","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]

package.json

@@ -30,6 +30,7 @@
   },
   "dependencies": {
     "@walletconnect/web3-provider": "^1.2.1",
+    "bs58": "^4.0.1",
     "eth-object": "near/eth-object#54e03b8aac8208cf724e206d49ffb8bdd30451d7",
     "eth-revert-reason": "^1.0.3",
     "eth-util-lite": "near/eth-util-lite#master",

prover.abi

@@ -0,0 +1 @@
+[{"inputs":[{"internalType":"contract INearBridge","name":"_bridge","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"bridge","outputs":[{"internalType":"contract INearBridge","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes","name":"proofData","type":"bytes"},{"internalType":"uint64","name":"blockHeight","type":"uint64"}],"name":"proveOutcome","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"}]

src/css/a11y.css

@@ -2,4 +2,5 @@
 .visually-hidden {
   position: absolute;
   text-indent: -9999em;
+  width: 0;
 }

src/css/global.css

@@ -142,7 +142,6 @@ fieldset {
 input, select {
   background-color: var(--shadow);
   border: none;
-  border-radius: 5px 0 0 5px;
   caret-color: var(--primary);
   color: inherit;
   padding: 0.25em 0.5em;

src/html/select-erc20.html

@@ -1,9 +1,14 @@
 <form data-behavior="select-erc20" class="select-erc20" method="get">
   <label for="erc20">
-    Select an ERC20 token to send to NEAR
+    Select an ERC20 token
   </label>
   <div style="display: flex">
-    <select id="erc20" name="erc20" data-behavior="erc20Selector">
+    <select
+      data-behavior="erc20Selector"
+      id="erc20"
+      name="erc20"
+      style="border-radius: 5px 0 0 5px"
+    >
     </select>
     <button id="submit" style="border-radius: 0 5px 5px 0">
       Go