Split keyring, pacify Codeclimate (#12)

2026-05-31 19:11:04 +00:00 · 2018-12-08 17:18:49 +01:00
parent fc4c7b62ea
commit 3ffee555b7
2 changed files with 146 additions and 123 deletions
@@ -0,0 +1,114 @@
+// Copyright 2017-2018 @polkadot/ui-keyring authors & contributors
+// This software may be modified and distributed under the terms
+// of the Apache-2.0 license. See the LICENSE file for details.
+
+import { Prefix } from '@polkadot/keyring/address/types';
+import { KeyringInstance, KeyringPair } from '@polkadot/keyring/types';
+import { AddressSubject } from './observable/types';
+
+import testKeyring from '@polkadot/keyring/testing';
+import { isString } from '@polkadot/util';
+
+import accounts from './observable/accounts';
+import addresses from './observable/addresses';
+import env from './observable/development';
+import { MAX_PASS_LEN } from './defaults';
+
+export default class Base {
+  private _accounts: AddressSubject;
+  private _addresses: AddressSubject;
+  private _keyring?: KeyringInstance;
+  private _prefix: Prefix;
+
+  constructor () {
+    this._accounts = accounts;
+    this._addresses = addresses;
+    this._keyring = undefined;
+    this._prefix = 42;
+  }
+
+  get accounts () {
+    return this._accounts;
+  }
+
+  get addresses () {
+    return this._addresses;
+  }
+
+  get keyring (): KeyringInstance {
+    if (this._keyring) {
+      return this._keyring;
+    }
+
+    throw new Error(`Keyring should be initialised via 'loadAll' before use`);
+  }
+
+  decodeAddress (key: string | Uint8Array): Uint8Array {
+    return this.keyring.decodeAddress(key);
+  }
+
+  encodeAddress (key: string | Uint8Array): string {
+    return this.keyring.encodeAddress(key);
+  }
+
+  setAddressPrefix (prefix: number): void {
+    this._prefix = prefix as Prefix;
+  }
+
+  setDevMode (isDevelopment: boolean): void {
+    env.set(isDevelopment);
+  }
+
+  protected initKeyring (): void {
+    const keyring = testKeyring();
+
+    keyring.setAddressPrefix(this._prefix);
+
+    this._keyring = keyring;
+
+    this.addAccountPairs();
+  }
+
+  protected addAccountPairs (): void {
+    this.keyring
+      .getPairs()
+      .forEach((pair: KeyringPair) => {
+        const address = pair.address();
+
+        this.accounts.add(address, {
+          address,
+          meta: pair.getMeta()
+        });
+      });
+  }
+
+  protected addTimestamp (pair: KeyringPair): void {
+    if (!pair.getMeta().whenCreated) {
+      pair.setMeta({  whenCreated: Date.now() });
+    }
+  }
+
+  isAvailable (_address: Uint8Array | string): boolean {
+    const accountsValue = this.accounts.subject.getValue();
+    const addressesValue = this.addresses.subject.getValue();
+    const address = isString(_address)
+      ? _address
+      : this.encodeAddress(_address);
+
+    return !accountsValue[address] && !addressesValue[address];
+  }
+
+  isPassValid (password: string): boolean {
+    return password.length > 0 && password.length <= MAX_PASS_LEN;
+  }
+
+  getPair (address: string | Uint8Array): KeyringPair {
+    return this.keyring.getPair(address);
+  }
+
+  getPairs (): Array<KeyringPair> {
+    return this.keyring.getPairs().filter((pair: KeyringPair) =>
+      env.isDevelopment() || pair.getMeta().isTesting !== true
+    );
+  }
+}