Implement Webviewclient.onReceivedSslError

android_webview/java/src/org/chromium/android_webview/SslUtil.java

+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.android_webview;
+
+import android.net.http.SslCertificate;
+import android.net.http.SslError;
+import android.util.Log;
+
+import org.chromium.net.NetError;
+import org.chromium.net.X509Util;
+
+import java.security.KeyStoreException;
+import java.security.NoSuchAlgorithmException;
+import java.security.cert.CertificateException;
+import java.security.cert.X509Certificate;
+
+public class SslUtil {
+    private static final String TAG = SslUtil.class.getSimpleName();
+
+    /**
+     * Creates an SslError object from a chromium net error code.
+     */
+    public static SslError sslErrorFromNetErrorCode(int error, SslCertificate cert, String url) {
+        assert (error >= NetError.ERR_CERT_END && error <= NetError.ERR_CERT_COMMON_NAME_INVALID);
+        switch(error) {
+            case NetError.ERR_CERT_COMMON_NAME_INVALID:
+                return new SslError(SslError.SSL_IDMISMATCH, cert, url);
+            case NetError.ERR_CERT_DATE_INVALID:
+                return new SslError(SslError.SSL_DATE_INVALID, cert, url);
+            case NetError.ERR_CERT_AUTHORITY_INVALID:
+                return new SslError(SslError.SSL_UNTRUSTED, cert, url);
+            default:
+                break;
+        }
+        // Map all other codes to SSL_INVALID.
+        return new SslError(SslError.SSL_INVALID, cert, url);
+    }
+
+    public static SslCertificate getCertificateFromDerBytes(byte[] derBytes) {
+        if (derBytes == null) {
+            return null;
+        }
+
+        try {
+            X509Certificate x509Certificate =
+                    X509Util.createCertificateFromBytes(derBytes);
+            return new SslCertificate(x509Certificate);
+        } catch (CertificateException e) {
+            // A SSL related exception must have occured.  This shouldn't happen.
+            Log.w(TAG, "Could not read certificate: " + e);
+        } catch (KeyStoreException e) {
+            // A SSL related exception must have occured.  This shouldn't happen.
+            Log.w(TAG, "Could not read certificate: " + e);
+        } catch (NoSuchAlgorithmException e) {
+            // A SSL related exception must have occured.  This shouldn't happen.
+            Log.w(TAG, "Could not read certificate: " + e);
+        }
+        return null;
+    }
+}