Why this bundle?

Ionic has already a Secure Storage Provider, so why did we do this bundle?

Here is the Ionic doc for Secure Storage: https://ionicframework.com/docs/native/secure-storage/.

A generic storage

You don't need to know on which platform you are to store your data. The GLSecureStorage is the only provider you'll need. It fallbacks on the Ionic Storage (not encrypted) when on browser.

Note: A good idea would be to implement a browser version of the secure storage using the Web Crypto API. PR are welcome!

Note: Another good idea would be to do a Windows version.

A better Android plugin

The Android version of the Secure Storage needs a secure screen-lock on the device to work properly: https://github.com/Crypho/cordova-plugin-secure-storage#users-must-have-a-secure-screen-lock-set. And also, the storage is cleared when the user changes his security settings in his phone. It's not really great for a user experience. So for Android, this bundle will instead use the Intel security plugin, which does not have all these downsides.

Works with big data

We encountered some problems whith the Secure Storage on iOS with big data stored in it. The clear method crashes when there is too much data to remove. So we made another clear method to work around this bug. The provider also sends events when clearing to notify the app of the progression percentage, as it can take some time to delete all the data.

Note : We don't use the Intel security plugin for iOS, as it does not work on iOS 9 and up: https://github.com/AppSecurityApi/com-intel-security-cordova-plugin/issues/9

Install

The bundle

Install this bundle using npm:

npm install gl-ionic2-secure-storage

The Cordova plugins

Install the 2 needed cordova plugins using cordova:

ionic cordova plugin add com-intel-security-cordova-plugin cordova-plugin-secure-storage

Usage

Create a config provider for the GLSecureStorageProvider

The GLSecureStorageProvider is configured via a configuration file named GLSecureStorageConfigProvider. You need to copy it from the source, give it another name and implement it's functions as described in the comments. File: https://github.com/geeklearningio/gl-ionic2-secure-storage/blob/master/src/providers/gl-secure-storage-config-provider.ts

import {Injectable} from '@angular/core';

@Injectable()
export class MySecureStorageConfigProvider {

  constructor() {
  }

  // override this function to set a namespace
  public getNamespace(): string {
    return 'mynamespace';
  }
}

The namespace is used by the Intel plugin for Android to create a specific folder in the storage for your app.

Import the module and declare the providers

Add the module to your app.module.ts, declare the GLSecureStorageProvider and override the GLSecureStorageConfigProvider with your own.

import { NgModule } from '@angular/core';
import { IonicApp, IonicModule } from 'ionic-angular';
import { MyApp } from './app.component';
import { HomePage } from '../pages/home/home';

// Import the module and the providers / components you want to use
import { IonicTools2Module, ConnectivityProvider } from '@bpce/ionic-tools-2/dist/src';

@NgModule({
  declarations: [
    MyApp,
    HomePage
  ],
  imports: [
    IonicModule.forRoot(MyApp),

    GlIonic2SecureStorageModule.forRoot() // Put the module here
  ],
  bootstrap: [IonicApp],
  entryComponents: [
    MyApp,
    HomePage
  ],
  providers: [
    GLSecureStorageProvider, // Put the providers here
    {provide: GLSecureStorageConfigProvider, useClass: MyGLSecureStorageConfigProvider } // override the GLSecureStorageConfigProvider
  ]
})
export class AppModule {}

Note: If you had already imported the IonicStorageModule in your app, you should remove it, as this bundle already imports it.

Use the provider

It works like any storage provider:

import {Injectable} from '@angular/core';
import {GLSecureStorageProvider} from "gl-ionic2-secure-storage/dist/src";

@Injectable()
export class MyPage {

  constructor(private glSecureStorage: GLSecureStorageProvider) {
    this.glSecureStorage.set('myKey', 'toto');
  }
}

Available functions:

• Set
• Get
• Remove
• Clear