Android: Get SSL root certificates from TrustManager

On Android, when not using Ministro, we cannot read certificates
from the file system, so we have to get them through Java APIs instead.

Change-Id: I415329fcb45836735c1112dbe832214b3c73dc9a
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>

1 files changed, 33 insertions, 0 deletions

diff --git a/src/android/jar/src/org/qtproject/qt5/android/QtNative.java b/src/android/jar/src/org/qtproject/qt5/android/QtNative.java
index 4586ae2002..22e3701e47 100644
--- a/src/android/jar/src/org/qtproject/qt5/android/QtNative.java
+++ b/src/android/jar/src/org/qtproject/qt5/android/QtNative.java
@@ -57,6 +57,12 @@ import android.view.ContextMenu;
 import android.view.Menu;
 import android.view.MotionEvent;
 
+import java.security.KeyStore;
+import java.security.cert.X509Certificate;
+import javax.net.ssl.TrustManagerFactory;
+import javax.net.ssl.TrustManager;
+import javax.net.ssl.X509TrustManager;
+
 public class QtNative
 {
     private static Activity m_activity = null;
@@ -534,6 +540,33 @@ public class QtNative
         });
     }
 
+    private static byte[][] getSSLCertificates()
+    {
+        ArrayList<byte[]> certificateList = new ArrayList<byte[]>();
+
+        try {
+            TrustManagerFactory factory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
+            factory.init((KeyStore) null);
+
+            for (TrustManager manager : factory.getTrustManagers()) {
+                if (manager instanceof X509TrustManager) {
+                    X509TrustManager trustManager = (X509TrustManager) manager;
+
+                    for (X509Certificate certificate : trustManager.getAcceptedIssuers()) {
+                        byte buffer[] = certificate.getEncoded();
+                        certificateList.add(buffer);
+                    }
+                }
+            }
+        } catch (Exception e) {
+            Log.e(QtTAG, "Failed to get certificates", e);
+        }
+
+        byte[][] certificateArray = new byte[certificateList.size()][];
+        certificateArray = certificateList.toArray(certificateArray);
+        return certificateArray;
+    }
+
     // screen methods
     public static native void setDisplayMetrics(int screenWidthPixels,
                                                 int screenHeightPixels,