Merge pull request #156 from kacynMedallia/security

Add PIN/Fingerprint Check to Device Info

README.md

@@ -182,4 +182,4 @@ var DeviceInfo = require('react-native-device-info');
 | App Instance ID            | `getInstanceID()`      |                                                                                               | ANDROID ONLY - see https://developers.google.com/instance-id/                                                    |
 | App is running in emulator | `isEmulator()`         | true                                                                                          | if app is running in emulator return true                                                                        |
 | App is running on a tablet | `isTablet()`           | true                                                                                          | if app is running on a tablet return true                                                                        |
-
+| PIN or fingerprint set     | `isPinOrFingerprintSet`| true                                                                                          | return true if PIN or fingerprint is configured.  Only supported in Android and iOS 9.0 and above

RNDeviceInfo/RNDeviceInfo.m

@@ -8,6 +8,7 @@
 
 #import "RNDeviceInfo.h"
 #import "DeviceUID.h"
+#import <LocalAuthentication/LocalAuthentication.h>
 
 @interface RNDeviceInfo()
 
@@ -162,6 +163,12 @@ RCT_EXPORT_MODULE()
   return [[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPad;
 }
 
+- (bool) isPinOrFingerprintSet
+{
+  LAContext *context = [[LAContext alloc] init];
+  return ([context canEvaluatePolicy:LAPolicyDeviceOwnerAuthentication error:nil]);
+}
+
 - (NSDictionary *)constantsToExport
 {
     UIDevice *currentDevice = [UIDevice currentDevice];
@@ -186,6 +193,7 @@ RCT_EXPORT_MODULE()
              @"timezone": self.timezone,
              @"isEmulator": @(self.isEmulator),
              @"isTablet": @(self.isTablet),
+             @"isPinOrFingerprintSet": @(self.isPinOrFingerprintSet),
              };
 }
 

android/src/main/java/com/learnium/RNDeviceInfo/RNDeviceModule.java

 package com.learnium.RNDeviceInfo;
 
+import android.app.KeyguardManager;
 import android.bluetooth.BluetoothAdapter;
+import android.content.Context;
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.content.res.Configuration;
@@ -69,6 +71,11 @@ public class RNDeviceModule extends ReactContextBaseJavaModule {
     return layout == Configuration.SCREENLAYOUT_SIZE_LARGE || layout == Configuration.SCREENLAYOUT_SIZE_XLARGE;
   }
 
+  private Boolean isPinOrFingerprintSet() {
+    KeyguardManager keyguardManager = (KeyguardManager) this.reactContext.getSystemService(Context.KEYGUARD_SERVICE); //api 16+
+    return keyguardManager.isKeyguardSecure();
+  }
+
   @Override
   public @Nullable Map<String, Object> getConstants() {
     HashMap<String, Object> constants = new HashMap<String, Object>();
@@ -115,6 +122,7 @@ public class RNDeviceModule extends ReactContextBaseJavaModule {
     constants.put("timezone", TimeZone.getDefault().getID());
     constants.put("isEmulator", this.isEmulator());
     constants.put("isTablet", this.isTablet());
+    constants.put("isPinOrFingerprintSet", this.isPinOrFingerprintSet());
     return constants;
   }
 }

deviceinfo.js

@@ -62,4 +62,7 @@ module.exports = {
   isTablet: function() {
     return RNDeviceInfo.isTablet;
   },
+  isPinOrFingerprintSet: function () {
+    return RNDeviceInfo.isPinOrFingerprintSet;
+  },
 };