From 9ddef77b1ddb996e9e8edb21baaccefd12d95940 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?G=C3=A1bor=20Siffel?= <gabors@fb.com>
Date: Mon, 1 Apr 2019 11:13:50 -0700
Subject: [PATCH] Add the ability to customize webview response to client cert
 requests

Summary:
Add the ability to set a custom handler on ReactWebViewManager to handle client certificate challenges during TLS authentication.

[Android][Added] - Public method setCustomClientCertRequestHandler to the native com.facebook.react.views.webview.ReactWebViewManager, that allows using a custom response for client certificate challenges.

Reviewed By: mjhu

Differential Revision: D14609697

fbshipit-source-id: 567c95458af638d1f8233fc3ca0d9cefc061c2bf
---
 .../views/webview/ReactWebViewManager.java    | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/ReactAndroid/src/main/java/com/facebook/react/views/webview/ReactWebViewManager.java b/ReactAndroid/src/main/java/com/facebook/react/views/webview/ReactWebViewManager.java
index a5f54d0ca6f..3e3fd79d230 100644
--- a/ReactAndroid/src/main/java/com/facebook/react/views/webview/ReactWebViewManager.java
+++ b/ReactAndroid/src/main/java/com/facebook/react/views/webview/ReactWebViewManager.java
@@ -19,6 +19,7 @@ import android.os.Build;
 import android.text.TextUtils;
 import android.view.View;
 import android.view.ViewGroup.LayoutParams;
+import android.webkit.ClientCertRequest;
 import android.webkit.ConsoleMessage;
 import android.webkit.CookieManager;
 import android.webkit.GeolocationPermissions;
@@ -103,6 +104,8 @@ public class ReactWebViewManager extends SimpleViewManager<WebView> {
   // Intent urls are a type of deeplinks which start with: intent://
   private static final String INTENT_URL_PREFIX = "intent://";
 
+  private static CustomClientCertRequestHandler customClientCertRequestHandler = null;
+
   protected WebViewConfig mWebViewConfig;
   protected @Nullable WebView.PictureListener mPictureListener;
 
@@ -210,6 +213,15 @@ public class ReactWebViewManager extends SimpleViewManager<WebView> {
       return false;
     }
 
+    @Override
+    public void onReceivedClientCertRequest(WebView webview, ClientCertRequest request) {
+      if (ReactWebViewManager.customClientCertRequestHandler != null) {
+        ReactWebViewManager.customClientCertRequestHandler.handle(webview, request);
+      } else {
+        super.onReceivedClientCertRequest(webview, request);
+      }
+    }
+
     @Override
     public void onReceivedError(
         WebView webView, int errorCode, String description, String failingUrl) {
@@ -734,4 +746,12 @@ public class ReactWebViewManager extends SimpleViewManager<WebView> {
         reactContext.getNativeModule(UIManagerModule.class).getEventDispatcher();
     eventDispatcher.dispatchEvent(event);
   }
+
+  public static interface CustomClientCertRequestHandler {
+    public void handle(WebView webview, ClientCertRequest request);
+  }
+
+  public static void setCustomClientCertRequestHandler(CustomClientCertRequestHandler handler) {
+    ReactWebViewManager.customClientCertRequestHandler = handler;
+  }
 }