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feat(mobile): add U2F support for Android devices (#2311)

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* feat(mobile): add U2F support for Android devices

* chore: fix specs
This commit is contained in:
Karol Sójko
2023-04-17 14:57:41 +02:00
committed by GitHub
parent c0c9a4ff91
commit 725f55fca7
23 changed files with 449 additions and 86 deletions
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203
packages/mobile/android/app/src/main/java/com/standardnotes/Fido2ApiModule.java Normal file
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@@ -0,0 +1,203 @@
package com.standardnotes;
import android.app.Activity;
import android.app.PendingIntent;
import android.content.Intent;
import android.content.IntentSender;
import android.util.Base64;
import android.util.Log;
import com.facebook.react.bridge.Arguments;
import com.facebook.react.bridge.NativeModule;
import com.facebook.react.bridge.ReactApplicationContext;
import com.facebook.react.bridge.ActivityEventListener;
import com.facebook.react.bridge.BaseActivityEventListener;
import com.facebook.react.bridge.ReactContext;
import com.facebook.react.bridge.ReactContextBaseJavaModule;
import com.facebook.react.bridge.ReactMethod;
import com.facebook.react.bridge.Promise;
import com.facebook.react.bridge.WritableMap;
import java.util.Map;
import java.util.HashMap;
import java.util.ArrayList;
import org.json.JSONObject;
import org.json.JSONArray;
import org.json.JSONException;
import com.google.android.gms.fido.fido2.Fido2ApiClient;
import com.google.android.gms.fido.fido2.api.common.AuthenticatorErrorResponse;
import com.google.android.gms.fido.fido2.api.common.AuthenticatorAssertionResponse;
import com.google.android.gms.fido.fido2.api.common.AuthenticationExtensionsClientOutputs;
import com.google.android.gms.fido.fido2.api.common.PublicKeyCredential;
import com.google.android.gms.fido.fido2.api.common.PublicKeyCredentialType;
import com.google.android.gms.fido.fido2.api.common.PublicKeyCredentialDescriptor;
import com.google.android.gms.fido.fido2.api.common.PublicKeyCredentialRequestOptions;
import com.google.android.gms.fido.fido2.api.common.PublicKeyCredentialRequestOptions;
import com.google.android.gms.fido.Fido;
import com.google.android.gms.tasks.OnFailureListener;
import com.google.android.gms.tasks.OnSuccessListener;
import com.google.android.gms.tasks.Task;
public class Fido2ApiModule extends ReactContextBaseJavaModule {
private final Fido2ApiClient fido2ApiClient;
private final ReactApplicationContext reactContext;
private static final int SIGN_REQUEST_CODE = 111;
private static final String LOGS_TAG = "Fido2ApiModule";
private static final String RP_ID = "app.standardnotes.com";
private Promise signInPromise;
private final ActivityEventListener activityEventListener = new BaseActivityEventListener() {
@Override
public void onActivityResult(Activity activity, int requestCode, int resultCode, Intent intent) {
super.onActivityResult(activity, requestCode, resultCode, intent);
if (requestCode == SIGN_REQUEST_CODE) {
if (signInPromise != null) {
if (resultCode == Activity.RESULT_CANCELED) {
Log.e(LOGS_TAG, "FIDO sign in cancelled");
signInPromise.reject("FIDO sign in cancelled");
} else if (resultCode == Activity.RESULT_OK) {
if (intent.hasExtra(Fido.FIDO2_KEY_ERROR_EXTRA)) {
AuthenticatorErrorResponse authenticatorErrorResponse =
AuthenticatorErrorResponse.deserializeFromBytes(intent.getByteArrayExtra(Fido.FIDO2_KEY_ERROR_EXTRA));
Log.e(LOGS_TAG, "Fido Error: " + authenticatorErrorResponse.getErrorMessage());
signInPromise.reject(authenticatorErrorResponse.getErrorMessage());
} else if (intent.hasExtra(Fido.FIDO2_KEY_CREDENTIAL_EXTRA)) {
PublicKeyCredential publicKeyCredential =
PublicKeyCredential.deserializeFromBytes(
intent.getByteArrayExtra(Fido.FIDO2_KEY_CREDENTIAL_EXTRA));
AuthenticatorAssertionResponse signedData =
(AuthenticatorAssertionResponse) publicKeyCredential.getResponse();
WritableMap signInResult = Arguments.createMap();
signInResult.putString("id", Base64.encodeToString(signedData.getKeyHandle(), Base64.URL_SAFE));
signInResult.putString("rawId", Base64.encodeToString(signedData.getKeyHandle(), Base64.URL_SAFE));
byte[] extensionOutputsBytes = null;
AuthenticationExtensionsClientOutputs extensionOutputs = publicKeyCredential.getClientExtensionResults();
if (extensionOutputs != null) {
extensionOutputsBytes = extensionOutputs.serializeToBytes();
if (extensionOutputsBytes != null) {
signInResult.putString("clientExtensionResults", Base64.encodeToString(extensionOutputsBytes, Base64.URL_SAFE));
}
}
WritableMap response = Arguments.createMap();
response.putString("clientDataJSON", Base64.encodeToString(signedData.getClientDataJSON(), Base64.URL_SAFE));
response.putString("authenticatorData", Base64.encodeToString(signedData.getAuthenticatorData(), Base64.URL_SAFE));
response.putString("signature", Base64.encodeToString(signedData.getSignature(), Base64.URL_SAFE));
byte[] userHandle = signedData.getUserHandle();
if (userHandle != null) {
response.putString("userHandle", Base64.encodeToString(userHandle, Base64.URL_SAFE));
}
signInResult.putMap("response", response);
signInPromise.resolve(signInResult);
}
}
}
signInPromise = null;
}
}
};
Fido2ApiModule(ReactApplicationContext context) {
super(context);
fido2ApiClient = Fido.getFido2ApiClient(context);
context.addActivityEventListener(activityEventListener);
this.reactContext = context;
}
@Override
public String getName() {
return "Fido2ApiModule";
}
@ReactMethod
public void promptForU2FAuthentication(String authenticationOptionsJSONString, Promise promise) throws JSONException {
signInPromise = promise;
JSONObject authenticationOptions = new JSONObject(authenticationOptionsJSONString);
ArrayList<PublicKeyCredentialDescriptor> allowedKeys = new ArrayList<PublicKeyCredentialDescriptor>();
JSONArray allowedCredentials = authenticationOptions.getJSONArray("allowCredentials");
for (int i = 0, size = allowedCredentials.length(); i < size; i++) {
JSONObject allowedCredential = allowedCredentials.getJSONObject(i);
allowedKeys.add(
new PublicKeyCredentialDescriptor(
PublicKeyCredentialType.PUBLIC_KEY.toString(),
this.convertBase64URLStringToBytes(allowedCredential.getString("id")),
null
)
);
}
String challenge = authenticationOptions.getString("challenge");
Double timeout = authenticationOptions.getDouble("timeout") / 1000d;
PublicKeyCredentialRequestOptions.Builder optionsBuilder = new PublicKeyCredentialRequestOptions
.Builder()
.setRpId(RP_ID)
.setAllowList(allowedKeys)
.setChallenge(this.convertBase64URLStringToBytes(challenge))
.setTimeoutSeconds(timeout);
PublicKeyCredentialRequestOptions options = optionsBuilder.build();
Task result = this.fido2ApiClient.getSignPendingIntent(options);
final Activity activity = this.reactContext.getCurrentActivity();
result.addOnSuccessListener(
new OnSuccessListener<PendingIntent>() {
@Override
public void onSuccess(PendingIntent fido2PendingIntent) {
if (fido2PendingIntent == null) {
Log.e(LOGS_TAG, "No pending FIDO intent returned");
return;
}
try {
activity.startIntentSenderForResult(
fido2PendingIntent.getIntentSender(),
SIGN_REQUEST_CODE,
null,
0,
0,
0
);
} catch (IntentSender.SendIntentException exception) {
Log.e(LOGS_TAG, "Error starting FIDO intent: " + exception.getMessage());
}
}
}
);
result.addOnFailureListener(
new OnFailureListener() {
@Override
public void onFailure(Exception e) {
Log.e(LOGS_TAG, "Error getting FIDO intent: " + e.getMessage());
signInPromise.reject(e.getMessage());
}
}
);
}
private byte[] convertBase64URLStringToBytes(String base64URLString) {
String base64String = base64URLString.replace('-', '+').replace('_', '/');
int padding = (4 - (base64String.length() % 4)) % 4;
for (int i = 0; i < padding; i++) {
base64String += '=';
}
return Base64.decode(base64String, Base64.DEFAULT);
}
}

26
packages/mobile/android/app/src/main/java/com/standardnotes/Fido2ApiPackage.java Normal file
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package com.standardnotes;
import com.facebook.react.ReactPackage;
import com.facebook.react.bridge.NativeModule;
import com.facebook.react.bridge.ReactApplicationContext;
import com.facebook.react.uimanager.ViewManager;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
public class Fido2ApiPackage implements ReactPackage {
@Override
public List<ViewManager> createViewManagers(ReactApplicationContext reactContext) {
return Collections.emptyList();
}
@Override
public List<NativeModule> createNativeModules(ReactApplicationContext reactContext) {
List<NativeModule> modules = new ArrayList<>();
modules.add(new Fido2ApiModule(reactContext));
return modules;
}
}

2
packages/mobile/android/app/src/main/java/com/standardnotes/MainApplication.java
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@@ -37,6 +37,8 @@ public class MainApplication extends Application implements ReactApplication {
@SuppressWarnings("UnnecessaryLocalVariable")
List<ReactPackage> packages = new PackageList(this).getPackages();
packages.add(new Fido2ApiPackage());
return packages;
}