src/com/owncloud/android/ui/adapter/X509CertificateViewAdapter.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2012-2014 ownCloud Inc.
   3  *
   4  *   This program is free software: you can redistribute it and/or modify
   5  *   it under the terms of the GNU General Public License version 2,
   6  *   as published by the Free Software Foundation.
   7  *
   8  *   This program is distributed in the hope that it will be useful,
   9  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  *   GNU General Public License for more details.
  12  *
  13  *   You should have received a copy of the GNU General Public License
  14  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15  *
  16  */
  17 package com.owncloud.android.ui.adapter;
  18
  19 import java.security.cert.X509Certificate;
  20 import java.text.DateFormat;
  21 import java.util.Date;
  22 import java.util.HashMap;
  23 import java.util.Map;
  24
  25 import javax.security.auth.x500.X500Principal;
  26
  27 import com.owncloud.android.R;
  28 import com.owncloud.android.ui.dialog.SslUntrustedCertDialog;
  29
  30 import android.view.View;
  31 import android.widget.TextView;
  32
  33 /**
  34  *
  35  * @author masensio
  36  * @author David A. Velasco
  37  *
  38  */
  39 public class X509CertificateViewAdapter implements SslUntrustedCertDialog.CertificateViewAdapter {
  40
  41     //private final static String TAG = X509CertificateViewAdapter.class.getSimpleName();
  42
  43     private X509Certificate mCertificate = null;
  44
  45     public X509CertificateViewAdapter(X509Certificate certificate) {
  46         mCertificate = certificate;
  47     }
  48
  49     @Override
  50     public void updateCertificateView(View dialogView) {
  51         TextView nullCerView = (TextView) dialogView.findViewById(R.id.null_cert);
  52
  53         if (mCertificate != null) {
  54             nullCerView.setVisibility(View.GONE);
  55             showSubject(mCertificate.getSubjectX500Principal(), dialogView);
  56             showIssuer(mCertificate.getIssuerX500Principal(), dialogView);
  57             showValidity(mCertificate.getNotBefore(), mCertificate.getNotAfter(), dialogView);
  58             showSignature(dialogView);
  59
  60         } else {
  61             nullCerView.setVisibility(View.VISIBLE);
  62         }
  63     }
  64
  65     private void showSignature(View dialogView) {
  66         TextView sigView = ((TextView)dialogView.findViewById(R.id.value_signature));
  67         TextView algorithmView = ((TextView)dialogView.findViewById(R.id.value_signature_algorithm));
  68         sigView.setText(getHex(mCertificate.getSignature()));
  69         algorithmView.setText(mCertificate.getSigAlgName());
  70     }
  71
  72     public String getHex(final byte [] raw) {
  73         if (raw == null) {
  74            return null;
  75         }
  76         final StringBuilder hex = new StringBuilder(2 * raw.length);
  77         for (final byte b : raw) {
  78            final int hiVal = (b & 0xF0) >> 4;
  79            final int loVal = b & 0x0F;
  80            hex.append((char) ('0' + (hiVal + (hiVal / 10 * 7))));
  81            hex.append((char) ('0' + (loVal + (loVal / 10 * 7))));
  82         }
  83         return hex.toString();
  84      }
  85
  86     private void showValidity(Date notBefore, Date notAfter, View dialogView) {
  87         TextView fromView = ((TextView)dialogView.findViewById(R.id.value_validity_from));
  88         TextView toView = ((TextView)dialogView.findViewById(R.id.value_validity_to));
  89         DateFormat dateFormat = DateFormat.getDateInstance();
  90         fromView.setText(dateFormat.format(notBefore));
  91         toView.setText(dateFormat.format(notAfter));
  92     }
  93
  94     private void showSubject(X500Principal subject, View dialogView) {
  95         Map<String, String> s = parsePrincipal(subject);
  96         TextView cnView = ((TextView)dialogView.findViewById(R.id.value_subject_CN));
  97         TextView oView = ((TextView)dialogView.findViewById(R.id.value_subject_O));
  98         TextView ouView = ((TextView)dialogView.findViewById(R.id.value_subject_OU));
  99         TextView cView = ((TextView)dialogView.findViewById(R.id.value_subject_C));
 100         TextView stView = ((TextView)dialogView.findViewById(R.id.value_subject_ST));
 101         TextView lView = ((TextView)dialogView.findViewById(R.id.value_subject_L));
 102
 103         if (s.get("CN") != null) {
 104             cnView.setText(s.get("CN"));
 105             cnView.setVisibility(View.VISIBLE);
 106         } else {
 107             cnView.setVisibility(View.GONE);
 108         }
 109         if (s.get("O") != null) {
 110             oView.setText(s.get("O"));
 111             oView.setVisibility(View.VISIBLE);
 112         } else {
 113             oView.setVisibility(View.GONE);
 114         }
 115         if (s.get("OU") != null) {
 116             ouView.setText(s.get("OU"));
 117             ouView.setVisibility(View.VISIBLE);
 118         } else {
 119             ouView.setVisibility(View.GONE);
 120         }
 121         if (s.get("C") != null) {
 122             cView.setText(s.get("C"));
 123             cView.setVisibility(View.VISIBLE);
 124         } else {
 125             cView.setVisibility(View.GONE);
 126         }
 127         if (s.get("ST") != null) {
 128             stView.setText(s.get("ST"));
 129             stView.setVisibility(View.VISIBLE);
 130         } else {
 131             stView.setVisibility(View.GONE);
 132         }
 133         if (s.get("L") != null) {
 134             lView.setText(s.get("L"));
 135             lView.setVisibility(View.VISIBLE);
 136         } else {
 137             lView.setVisibility(View.GONE);
 138         }
 139     }
 140
 141     private void showIssuer(X500Principal issuer, View dialogView) {
 142         Map<String, String> s = parsePrincipal(issuer);
 143         TextView cnView = ((TextView)dialogView.findViewById(R.id.value_issuer_CN));
 144         TextView oView = ((TextView)dialogView.findViewById(R.id.value_issuer_O));
 145         TextView ouView = ((TextView)dialogView.findViewById(R.id.value_issuer_OU));
 146         TextView cView = ((TextView)dialogView.findViewById(R.id.value_issuer_C));
 147         TextView stView = ((TextView)dialogView.findViewById(R.id.value_issuer_ST));
 148         TextView lView = ((TextView)dialogView.findViewById(R.id.value_issuer_L));
 149
 150         if (s.get("CN") != null) {
 151             cnView.setText(s.get("CN"));
 152             cnView.setVisibility(View.VISIBLE);
 153         } else {
 154             cnView.setVisibility(View.GONE);
 155         }
 156         if (s.get("O") != null) {
 157             oView.setText(s.get("O"));
 158             oView.setVisibility(View.VISIBLE);
 159         } else {
 160             oView.setVisibility(View.GONE);
 161         }
 162         if (s.get("OU") != null) {
 163             ouView.setText(s.get("OU"));
 164             ouView.setVisibility(View.VISIBLE);
 165         } else {
 166             ouView.setVisibility(View.GONE);
 167         }
 168         if (s.get("C") != null) {
 169             cView.setText(s.get("C"));
 170             cView.setVisibility(View.VISIBLE);
 171         } else {
 172             cView.setVisibility(View.GONE);
 173         }
 174         if (s.get("ST") != null) {
 175             stView.setText(s.get("ST"));
 176             stView.setVisibility(View.VISIBLE);
 177         } else {
 178             stView.setVisibility(View.GONE);
 179         }
 180         if (s.get("L") != null) {
 181             lView.setText(s.get("L"));
 182             lView.setVisibility(View.VISIBLE);
 183         } else {
 184             lView.setVisibility(View.GONE);
 185         }
 186     }
 187
 188
 189     private Map<String, String> parsePrincipal(X500Principal principal) {
 190         Map<String, String> result = new HashMap<String, String>();
 191         String toParse = principal.getName();
 192         String[] pieces = toParse.split(",");
 193         String[] tokens = {"CN", "O", "OU", "C", "ST", "L"};
 194         for (int i=0; i < pieces.length ; i++) {
 195             for (int j=0; j<tokens.length; j++) {
 196                 if (pieces[i].startsWith(tokens[j] + "=")) {
 197                     result.put(tokens[j], pieces[i].substring(tokens[j].length()+1));
 198                 }
 199             }
 200         }
 201         return result;
 202     }
 203
 204 }