--- /dev/null
+/* ownCloud Android client application
+ * Copyright (C) 2012-2013 ownCloud Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+package com.owncloud.android.ui.dialog;
+
+import java.io.IOException;
+import java.security.GeneralSecurityException;
+import java.security.KeyStoreException;
+import java.security.NoSuchAlgorithmException;
+import java.security.cert.CertificateException;
+import java.security.cert.X509Certificate;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.Map;
+
+import javax.security.auth.x500.X500Principal;
+
+import com.owncloud.android.Log_OC;
+import com.owncloud.android.R;
+import com.owncloud.android.network.CertificateCombinedException;
+import com.owncloud.android.network.OwnCloudClientUtils;
+import com.owncloud.android.operations.RemoteOperationResult;
+import com.owncloud.android.ui.CustomButton;
+
+import android.app.Dialog;
+import android.content.Context;
+import android.os.Bundle;
+import android.view.View;
+import android.view.Window;
+import android.widget.TextView;
+
+
+/**
+ * Dialog to request the user about a certificate that could not be validated with the certificates store in the system.
+ *
+ * @author David A. Velasco
+ */
+public class SslValidatorDialog extends Dialog {
+
+ private final static String TAG = SslValidatorDialog.class.getSimpleName();
+
+ private OnSslValidatorListener mListener;
+ private CertificateCombinedException mException = null;
+ private View mView;
+
+
+ /**
+ * Creates a new SslValidatorDialog to ask the user if an untrusted certificate from a server should
+ * be trusted.
+ *
+ * @param context Android context where the dialog will live.
+ * @param result Result of a failed remote operation.
+ * @param listener Object to notice when the server certificate was added to the local certificates store.
+ * @return A new SslValidatorDialog instance. NULL if the operation can not be recovered
+ * by setting the certificate as reliable.
+ */
+ public static SslValidatorDialog newInstance(Context context, RemoteOperationResult result, OnSslValidatorListener listener) {
+ if (result != null && result.isSslRecoverableException()) {
+ SslValidatorDialog dialog = new SslValidatorDialog(context, listener);
+ return dialog;
+ } else {
+ return null;
+ }
+ }
+
+ /**
+ * Private constructor.
+ *
+ * Instances have to be created through static {@link SslValidatorDialog#newInstance}.
+ *
+ * @param context Android context where the dialog will live
+ * @param e Exception causing the need of prompt the user about the server certificate.
+ * @param listener Object to notice when the server certificate was added to the local certificates store.
+ */
+ private SslValidatorDialog(Context context, OnSslValidatorListener listener) {
+ super(context);
+ mListener = listener;
+ }
+
+
+ /**
+ * {@inheritDoc}
+ */
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ requestWindowFeature(Window.FEATURE_NO_TITLE);
+ mView = getLayoutInflater().inflate(R.layout.ssl_validator_layout, null);
+ setContentView(mView);
+
+ mView.findViewById(R.id.ok).setOnClickListener(
+ new View.OnClickListener() {
+ @Override
+ public void onClick(View v) {
+ try {
+ saveServerCert();
+ dismiss();
+ if (mListener != null)
+ mListener.onSavedCertificate();
+ else
+ Log_OC.d(TAG, "Nobody there to notify the certificate was saved");
+
+ } catch (GeneralSecurityException e) {
+ dismiss();
+ if (mListener != null)
+ mListener.onFailedSavingCertificate();
+ Log_OC.e(TAG, "Server certificate could not be saved in the known servers trust store ", e);
+
+ } catch (IOException e) {
+ dismiss();
+ if (mListener != null)
+ mListener.onFailedSavingCertificate();
+ Log_OC.e(TAG, "Server certificate could not be saved in the known servers trust store ", e);
+ }
+ }
+ });
+
+ mView.findViewById(R.id.cancel).setOnClickListener(
+ new View.OnClickListener() {
+ @Override
+ public void onClick(View v) {
+ cancel();
+ }
+ });
+
+ mView.findViewById(R.id.details_btn).setOnClickListener(
+ new View.OnClickListener() {
+ @Override
+ public void onClick(View v) {
+ View detailsScroll = findViewById(R.id.details_scroll);
+ if (detailsScroll.getVisibility() == View.VISIBLE) {
+ detailsScroll.setVisibility(View.GONE);
+ ((CustomButton)v).setText(R.string.ssl_validator_btn_details_see);
+
+ } else {
+ detailsScroll.setVisibility(View.VISIBLE);
+ ((CustomButton)v).setText(R.string.ssl_validator_btn_details_hide);
+ }
+ }
+ });
+ }
+
+
+ public void updateResult(RemoteOperationResult result) {
+ if (result.isSslRecoverableException()) {
+ mException = (CertificateCombinedException) result.getException();
+
+ /// clean
+ mView.findViewById(R.id.reason_cert_not_trusted).setVisibility(View.GONE);
+ mView.findViewById(R.id.reason_cert_expired).setVisibility(View.GONE);
+ mView.findViewById(R.id.reason_cert_not_yet_valid).setVisibility(View.GONE);
+ mView.findViewById(R.id.reason_hostname_not_verified).setVisibility(View.GONE);
+ mView.findViewById(R.id.details_scroll).setVisibility(View.GONE);
+
+ /// refresh
+ if (mException.getCertPathValidatorException() != null) {
+ ((TextView)mView.findViewById(R.id.reason_cert_not_trusted)).setVisibility(View.VISIBLE);
+ }
+
+ if (mException.getCertificateExpiredException() != null) {
+ ((TextView)mView.findViewById(R.id.reason_cert_expired)).setVisibility(View.VISIBLE);
+ }
+
+ if (mException.getCertificateNotYetValidException() != null) {
+ ((TextView)mView.findViewById(R.id.reason_cert_not_yet_valid)).setVisibility(View.VISIBLE);
+ }
+
+ if (mException.getSslPeerUnverifiedException() != null ) {
+ ((TextView)mView.findViewById(R.id.reason_hostname_not_verified)).setVisibility(View.VISIBLE);
+ }
+
+
+ showCertificateData(mException.getServerCertificate());
+ }
+
+ }
+
+ private void showCertificateData(X509Certificate cert) {
+
+ if (cert != null) {
+ showSubject(cert.getSubjectX500Principal());
+ showIssuer(cert.getIssuerX500Principal());
+ showValidity(cert.getNotBefore(), cert.getNotAfter());
+ showSignature(cert);
+
+ } else {
+ // this should not happen
+ // TODO
+ }
+ }
+
+ private void showSignature(X509Certificate cert) {
+ TextView sigView = ((TextView)mView.findViewById(R.id.value_signature));
+ TextView algorithmView = ((TextView)mView.findViewById(R.id.value_signature_algorithm));
+ sigView.setText(getHex(cert.getSignature()));
+ algorithmView.setText(cert.getSigAlgName());
+ }
+
+ public String getHex(final byte [] raw) {
+ if (raw == null) {
+ return null;
+ }
+ final StringBuilder hex = new StringBuilder(2 * raw.length);
+ for (final byte b : raw) {
+ final int hiVal = (b & 0xF0) >> 4;
+ final int loVal = b & 0x0F;
+ hex.append((char) ('0' + (hiVal + (hiVal / 10 * 7))));
+ hex.append((char) ('0' + (loVal + (loVal / 10 * 7))));
+ }
+ return hex.toString();
+ }
+
+ private void showValidity(Date notBefore, Date notAfter) {
+ TextView fromView = ((TextView)mView.findViewById(R.id.value_validity_from));
+ TextView toView = ((TextView)mView.findViewById(R.id.value_validity_to));
+ fromView.setText(notBefore.toLocaleString());
+ toView.setText(notAfter.toLocaleString());
+ }
+
+ private void showSubject(X500Principal subject) {
+ Map<String, String> s = parsePrincipal(subject);
+ TextView cnView = ((TextView)mView.findViewById(R.id.value_subject_CN));
+ TextView oView = ((TextView)mView.findViewById(R.id.value_subject_O));
+ TextView ouView = ((TextView)mView.findViewById(R.id.value_subject_OU));
+ TextView cView = ((TextView)mView.findViewById(R.id.value_subject_C));
+ TextView stView = ((TextView)mView.findViewById(R.id.value_subject_ST));
+ TextView lView = ((TextView)mView.findViewById(R.id.value_subject_L));
+
+ if (s.get("CN") != null) {
+ cnView.setText(s.get("CN"));
+ cnView.setVisibility(View.VISIBLE);
+ } else {
+ cnView.setVisibility(View.GONE);
+ }
+ if (s.get("O") != null) {
+ oView.setText(s.get("O"));
+ oView.setVisibility(View.VISIBLE);
+ } else {
+ oView.setVisibility(View.GONE);
+ }
+ if (s.get("OU") != null) {
+ ouView.setText(s.get("OU"));
+ ouView.setVisibility(View.VISIBLE);
+ } else {
+ ouView.setVisibility(View.GONE);
+ }
+ if (s.get("C") != null) {
+ cView.setText(s.get("C"));
+ cView.setVisibility(View.VISIBLE);
+ } else {
+ cView.setVisibility(View.GONE);
+ }
+ if (s.get("ST") != null) {
+ stView.setText(s.get("ST"));
+ stView.setVisibility(View.VISIBLE);
+ } else {
+ stView.setVisibility(View.GONE);
+ }
+ if (s.get("L") != null) {
+ lView.setText(s.get("L"));
+ lView.setVisibility(View.VISIBLE);
+ } else {
+ lView.setVisibility(View.GONE);
+ }
+ }
+
+ private void showIssuer(X500Principal issuer) {
+ Map<String, String> s = parsePrincipal(issuer);
+ TextView cnView = ((TextView)mView.findViewById(R.id.value_issuer_CN));
+ TextView oView = ((TextView)mView.findViewById(R.id.value_issuer_O));
+ TextView ouView = ((TextView)mView.findViewById(R.id.value_issuer_OU));
+ TextView cView = ((TextView)mView.findViewById(R.id.value_issuer_C));
+ TextView stView = ((TextView)mView.findViewById(R.id.value_issuer_ST));
+ TextView lView = ((TextView)mView.findViewById(R.id.value_issuer_L));
+
+ if (s.get("CN") != null) {
+ cnView.setText(s.get("CN"));
+ cnView.setVisibility(View.VISIBLE);
+ } else {
+ cnView.setVisibility(View.GONE);
+ }
+ if (s.get("O") != null) {
+ oView.setText(s.get("O"));
+ oView.setVisibility(View.VISIBLE);
+ } else {
+ oView.setVisibility(View.GONE);
+ }
+ if (s.get("OU") != null) {
+ ouView.setText(s.get("OU"));
+ ouView.setVisibility(View.VISIBLE);
+ } else {
+ ouView.setVisibility(View.GONE);
+ }
+ if (s.get("C") != null) {
+ cView.setText(s.get("C"));
+ cView.setVisibility(View.VISIBLE);
+ } else {
+ cView.setVisibility(View.GONE);
+ }
+ if (s.get("ST") != null) {
+ stView.setText(s.get("ST"));
+ stView.setVisibility(View.VISIBLE);
+ } else {
+ stView.setVisibility(View.GONE);
+ }
+ if (s.get("L") != null) {
+ lView.setText(s.get("L"));
+ lView.setVisibility(View.VISIBLE);
+ } else {
+ lView.setVisibility(View.GONE);
+ }
+ }
+
+
+ private Map<String, String> parsePrincipal(X500Principal principal) {
+ Map<String, String> result = new HashMap<String, String>();
+ String toParse = principal.getName();
+ String[] pieces = toParse.split(",");
+ String[] tokens = {"CN", "O", "OU", "C", "ST", "L"};
+ for (int i=0; i < pieces.length ; i++) {
+ for (int j=0; j<tokens.length; j++) {
+ if (pieces[i].startsWith(tokens[j] + "=")) {
+ result.put(tokens[j], pieces[i].substring(tokens[j].length()+1));
+ }
+ }
+ }
+ return result;
+ }
+
+ private void saveServerCert() throws KeyStoreException, NoSuchAlgorithmException, CertificateException, IOException {
+ if (mException.getServerCertificate() != null) {
+ // TODO make this asynchronously, it can take some time
+ OwnCloudClientUtils.addCertToKnownServersStore(mException.getServerCertificate(), getContext());
+ }
+ }
+
+
+ public interface OnSslValidatorListener {
+ public void onSavedCertificate();
+ public void onFailedSavingCertificate();
+ }
+}
+
projects / pub / Android / ownCloud.git / blobdiff