Ui 2 provider for dapps (#5799)

* Import web3Provider

* Import api

* {Transport,Provider}/Ws -> WsSecure

* PostMessage provider with filters

* PromiseWrapper -> PromiseProvider

js/src/shell/DappFilter/dappFilter.js

@@ -0,0 +1,65 @@
+// Copyright 2015-2017 Parity Technologies (UK) Ltd.
+// This file is part of Parity.
+
+// Parity is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
+
+export default class DappFilter {
+  constructor (provider, permissions) {
+    this.permissions = permissions;
+    this.provider = provider;
+
+    window.addEventListener('message', this.receiveMessage, false);
+  }
+
+  receiveMessage = ({ data: { id, from, method, params, token }, origin, source }) => {
+    if (from === 'shell' || from !== token) {
+      return;
+    }
+
+    if (this.permissions.filtered.includes(method) && !this.permissions.tokens[token][method]) {
+      source.postMessage({
+        id,
+        from: 'shell',
+        error: new Error(`Method ${method} is not available to application`),
+        result: null,
+        token
+      }, '*');
+      return;
+    }
+
+    this.provider.send(method, params, (error, result) => {
+      source.postMessage({
+        error,
+        id,
+        from: 'shell',
+        result,
+        token
+      }, '*');
+    });
+  }
+
+  setPermissions (permissions) {
+    this.permissions = permissions;
+  }
+
+  static instance = null;
+
+  static create (provider, permissions) {
+    DappFilter.instance = new DappFilter(provider, permissions);
+  }
+
+  static get () {
+    return DappFilter.instance;
+  }
+}

js/src/shell/DappFilter/index.js

@@ -0,0 +1,17 @@
+// Copyright 2015-2017 Parity Technologies (UK) Ltd.
+// This file is part of Parity.
+
+// Parity is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
+
+export default from './dappFilter';

js/src/shell/index.js

@@ -26,6 +26,7 @@ import injectTapEventPlugin from 'react-tap-event-plugin';
 import { IndexRoute, Redirect, Route, Router, hashHistory } from 'react-router';
 import qs from 'querystring';
 
+import Api from '@parity/api';
 import builtinDapps from '@parity/shared/config/dappsBuiltin.json';
 import viewsDapps from '@parity/shared/config/dappsViews.json';
 import ContractInstances from '@parity/shared/contracts';
@@ -40,6 +41,7 @@ import SecureApi from '~/secureApi';
 
 import Application from './Application';
 import Dapp from './Dapp';
+import DappFilter from './DappFilter';
 import Dapps from './Dapps';
 
 injectTapEventPlugin();
@@ -65,17 +67,23 @@ const api = new SecureApi(uiUrl, token);
 patchApi(api);
 ContractInstances.get(api);
 
-const store = initStore(api, hashHistory);
+DappFilter.create(api.provider, {
+  filtered: [],
+  tokens: {
+  }
+});
 
-window.secureApi = api;
+const store = initStore(api, hashHistory);
 
 const dapps = [].concat(viewsDapps, builtinDapps);
 
 const dappsHistory = HistoryStore.get('dapps');
 
-function onEnterDapp ({ params }) {
-  if (!dapps[params.id] || !dapps[params.id].skipHistory) {
-    dappsHistory.add(params.id);
+function onEnterDapp ({ params: { id } }) {
+  window.web3Provider = new Api.Provider.PostMessage(id, window);
+
+  if (!dapps[id] || !dapps[id].skipHistory) {
+    dappsHistory.add(id);
   }
 }