Add ACL contract wrapper

this mainly allows us to check if an account has a certain role and thus
if the account can call specific contract functions.

At some point we might want to extend that to support the check if an
account can call the function. For that we would need to have a mapping
between function names and roles, which we have not right now.

lib/abis/ACL.json

@@ -0,0 +1 @@
+[{"constant":true,"inputs":[],"name":"hasInitialized","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"NO_PERMISSION","outputs":[{"name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_script","type":"bytes"}],"name":"getEVMScriptExecutor","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getRecoveryVault","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"CREATE_PERMISSIONS_ROLE","outputs":[{"name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"token","type":"address"}],"name":"allowRecoverability","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"appId","outputs":[{"name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getInitializationBlock","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_token","type":"address"}],"name":"transferToVault","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_sender","type":"address"},{"name":"_role","type":"bytes32"},{"name":"_params","type":"uint256[]"}],"name":"canPerform","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getEVMScriptRegistry","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"ANY_ENTITY","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"EMPTY_PARAM_HASH","outputs":[{"name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"kernel","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"isPetrified","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"BURN_ENTITY","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"anonymous":false,"inputs":[{"indexed":true,"name":"entity","type":"address"},{"indexed":true,"name":"app","type":"address"},{"indexed":true,"name":"role","type":"bytes32"},{"indexed":false,"name":"allowed","type":"bool"}],"name":"SetPermission","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"entity","type":"address"},{"indexed":true,"name":"app","type":"address"},{"indexed":true,"name":"role","type":"bytes32"},{"indexed":false,"name":"paramsHash","type":"bytes32"}],"name":"SetPermissionParams","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"app","type":"address"},{"indexed":true,"name":"role","type":"bytes32"},{"indexed":true,"name":"manager","type":"address"}],"name":"ChangePermissionManager","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"executor","type":"address"},{"indexed":false,"name":"script","type":"bytes"},{"indexed":false,"name":"input","type":"bytes"},{"indexed":false,"name":"returnData","type":"bytes"}],"name":"ScriptResult","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"vault","type":"address"},{"indexed":true,"name":"token","type":"address"},{"indexed":false,"name":"amount","type":"uint256"}],"name":"RecoverToVault","type":"event"},{"constant":false,"inputs":[{"name":"_permissionsCreator","type":"address"}],"name":"initialize","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_entity","type":"address"},{"name":"_app","type":"address"},{"name":"_role","type":"bytes32"},{"name":"_manager","type":"address"}],"name":"createPermission","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_entity","type":"address"},{"name":"_app","type":"address"},{"name":"_role","type":"bytes32"}],"name":"grantPermission","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_entity","type":"address"},{"name":"_app","type":"address"},{"name":"_role","type":"bytes32"},{"name":"_params","type":"uint256[]"}],"name":"grantPermissionP","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_entity","type":"address"},{"name":"_app","type":"address"},{"name":"_role","type":"bytes32"}],"name":"Line truncated

lib/contracts/acl.js

@@ -0,0 +1,13 @@
+const Base = require('./base');
+const EthersUtils = require('ethers').utils;
+
+class Acl extends Base {
+
+  hasPermission(fromAddress, contractAddress, roleID, params = null) {
+    let roleHash = EthersUtils.keccak256(EthersUtils.toUtf8Bytes(roleID));
+    console.log(roleHash)
+    return this.functions.hasPermission(fromAddress, contractAddress, roleHash, params);
+  }
+}
+
+module.exports = Acl;

lib/contracts/index.js

@@ -3,5 +3,6 @@ module.exports = {
   Contribution: require('./contribution'),
   Proposal: require('./proposal'),
   Token: require('./token'),
-  Kernel: require('./kernel')
+  Kernel: require('./kernel'),
+  Acl: require('./acl')
 };

lib/contracts/kernel.js

@@ -5,6 +5,9 @@ KERNEL_APP_ADDR_NAMESPACE = '0xd6f028ca0e8edb4a8c9757ca4fdccab25fa1e0317da118810
 class Kernel extends Base {
 
   getApp(appName) {
+    if (appName === 'Acl') {
+      return this.functions.acl();
+    }
     return this.functions.getApp(KERNEL_APP_ADDR_NAMESPACE, this.appNamehash(appName));
   }
 

lib/kredits.js

@@ -8,13 +8,15 @@ const ABIS = {
   Contribution: require('./abis/Contribution.json'),
   Token: require('./abis/Token.json'),
   Proposal: require('./abis/Proposal.json'),
-  Kernel: require('./abis/Kernel.json')
+  Kernel: require('./abis/Kernel.json'),
+  Acl: require('./abis/ACL.json')
 };
 const APP_CONTRACTS = [
   'Contributor',
   'Contribution',
   'Token',
-  'Proposal'
+  'Proposal',
+  'Acl'
 ];
 const DaoAddresses = require('./addresses/dao.json');
 
@@ -86,6 +88,10 @@ class Kredits {
     return this.contractFor('Contribution');
   }
 
+  get Acl() {
+    return this.contractFor('Acl');
+  }
+
   // Should be private
   contractFor(name) {
     if (this.contracts[name]) {

scripts/build-json.js

@@ -10,7 +10,8 @@ const files = [
   'Contribution',
   'Kernel',
   'Proposal',
-  'Token'
+  'Token',
+  'ACL'
 ];
 
 files.forEach((fileName) => {