Public node with accounts and signing in Frontend

ethkey/src/brain.rs

@@ -29,7 +29,7 @@ impl Brain {
 impl Generator for Brain {
 	fn generate(self) -> Result<KeyPair, Error> {
 		let seed = self.0;
-		let mut secret = seed.bytes().collect::<Vec<u8>>().keccak256();
+		let mut secret = seed.into_bytes().keccak256();
 
 		let mut i = 0;
 		loop {

js/package.json

@@ -171,6 +171,7 @@
     "geopattern": "1.2.3",
     "isomorphic-fetch": "2.2.1",
     "js-sha3": "0.5.5",
+    "keythereum": "0.4.3",
     "lodash": "4.17.2",
     "loglevel": "1.4.1",
     "marked": "0.3.6",
@@ -207,6 +208,7 @@
     "redux-thunk": "2.1.0",
     "rlp": "2.0.0",
     "scryptsy": "2.0.0",
+    "secp256k1": "3.2.5",
     "solc": "ngotchac/solc-js",
     "store": "1.3.20",
     "sw-toolbox": "^3.6.0",

js/src/api/api.js

@@ -23,6 +23,7 @@ import { Db, Eth, Parity, Net, Personal, Shh, Signer, Trace, Web3 } from './rpc'
 import Subscriptions from './subscriptions';
 import util from './util';
 import { isFunction } from './util/types';
+import { LocalAccountsMiddleware } from './local';
 
 export default class Api extends EventEmitter {
   constructor (transport) {
@@ -45,6 +46,21 @@ export default class Api extends EventEmitter {
     this._web3 = new Web3(transport);
 
     this._subscriptions = new Subscriptions(this);
+
+    // Doing a request here in test env would cause an error
+    if (process.env.NODE_ENV !== 'test') {
+      const middleware = this.parity
+        .nodeKind()
+        .then((nodeKind) => {
+          if (nodeKind.availability === 'public') {
+            return new LocalAccountsMiddleware(transport);
+          }
+
+          return null;
+        });
+
+      transport.addMiddleware(middleware);
+    }
   }
 
   get db () {

js/src/api/local/accounts/account.js

@@ -0,0 +1,95 @@
+// 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/>.
+
+import { keythereum } from '../ethkey';
+
+export default class Account {
+  constructor (persist, data) {
+    const {
+      keyObject,
+      meta = {},
+      name = ''
+    } = data;
+
+    this._persist = persist;
+    this._keyObject = keyObject;
+    this._name = name;
+    this._meta = meta;
+  }
+
+  isValidPassword (password) {
+    try {
+      keythereum.recover(Buffer.from(password), this._keyObject);
+      return true;
+    } catch (e) {
+      return false;
+    }
+  }
+
+  get address () {
+    return `0x${this._keyObject.address.toLowerCase()}`;
+  }
+
+  get name () {
+    return this._name;
+  }
+
+  set name (name) {
+    this._name = name;
+
+    this._persist();
+  }
+
+  get meta () {
+    return JSON.stringify(this._meta);
+  }
+
+  set meta (meta) {
+    this._meta = JSON.parse(meta);
+
+    this._persist();
+  }
+
+  get uuid () {
+    return this._keyObject.id;
+  }
+
+  decryptPrivateKey (password) {
+    return keythereum.recover(Buffer.from(password), this._keyObject);
+  }
+
+  static fromPrivateKey (persist, key, password) {
+    const iv = keythereum.crypto.randomBytes(16);
+    const salt = keythereum.crypto.randomBytes(32);
+
+    // Keythereum will fail if `password` is an empty string
+    password = Buffer.from(password);
+
+    const keyObject = keythereum.dump(password, key, salt, iv);
+
+    const account = new Account(persist, { keyObject });
+
+    return account;
+  }
+
+  toJSON () {
+    return {
+      keyObject: this._keyObject,
+      name: this._name,
+      meta: this._meta
+    };
+  }
+}

js/src/api/local/accounts/accounts.js

@@ -0,0 +1,120 @@
+// 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/>.
+
+import Account from './account';
+import localStore from 'store';
+import { debounce } from 'lodash';
+
+const NULL_ADDRESS = '0x0000000000000000000000000000000000000000';
+const LS_STORE_KEY = '_parity::localAccounts';
+
+export default class Accounts {
+  constructor (data = localStore.get(LS_STORE_KEY) || {}) {
+    const {
+      last = NULL_ADDRESS,
+      store = []
+    } = data;
+
+    this.persist = debounce(() => {
+      localStore.set(LS_STORE_KEY, this);
+    }, 100);
+
+    this._last = last;
+    this._store = store.map((data) => new Account(this.persist, data));
+  }
+
+  create (secret, password) {
+    const privateKey = Buffer.from(secret.slice(2), 'hex');
+    const account = Account.fromPrivateKey(this.persist, privateKey, password);
+
+    this._store.push(account);
+    this.lastAddress = account.address;
+
+    this.persist();
+
+    return account.address;
+  }
+
+  set lastAddress (value) {
+    this._last = value.toLowerCase();
+  }
+
+  get lastAddress () {
+    return this._last;
+  }
+
+  get (address) {
+    address = address.toLowerCase();
+
+    this.lastAddress = address;
+
+    const account = this._store.find((account) => account.address === address);
+
+    if (!account) {
+      throw new Error(`Account not found: ${address}`);
+    }
+
+    return account;
+  }
+
+  remove (address, password) {
+    address = address.toLowerCase();
+
+    const index = this._store.findIndex((account) => account.address === address);
+
+    if (index === -1) {
+      return false;
+    }
+
+    const account = this._store[index];
+
+    if (!account.isValidPassword(password)) {
+      console.log('invalid password');
+      return false;
+    }
+
+    if (address === this.lastAddress) {
+      this.lastAddress = NULL_ADDRESS;
+    }
+
+    this._store.splice(index, 1);
+
+    this.persist();
+
+    return true;
+  }
+
+  mapArray (mapper) {
+    return this._store.map(mapper);
+  }
+
+  mapObject (mapper) {
+    const result = {};
+
+    this._store.forEach((account) => {
+      result[account.address] = mapper(account);
+    });
+
+    return result;
+  }
+
+  toJSON () {
+    return {
+      last: this._last,
+      store: this._store
+    };
+  }
+}

js/src/api/local/accounts/index.js

@@ -0,0 +1,21 @@
+// 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/>.
+
+import Accounts from './accounts';
+
+const accounts = new Accounts();
+
+export default accounts;