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

   1 /**
   2  *   ownCloud Android client application
   3  *
   4  *   @author masensio
   5  *   @author David A. Velasco
   6  *   Copyright (C) 2015 ownCloud Inc.
   7  *
   8  *   This program is free software: you can redistribute it and/or modify
   9  *   it under the terms of the GNU General Public License version 2,
  10  *   as published by the Free Software Foundation.
  11  *
  12  *   This program is distributed in the hope that it will be useful,
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *   GNU General Public License for more details.
  16  *
  17  *   You should have received a copy of the GNU General Public License
  18  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19  *
  20  */
  21 package com.owncloud.android.ui.adapter;
  22
  23 import java.security.cert.X509Certificate;
  24 import java.text.DateFormat;
  25 import java.util.Date;
  26 import java.util.HashMap;
  27 import java.util.Map;
  28
  29 import javax.security.auth.x500.X500Principal;
  30
  31 import com.owncloud.android.R;
  32 import com.owncloud.android.ui.dialog.SslUntrustedCertDialog;
  33
  34 import android.view.View;
  35 import android.widget.TextView;
  36
  37 /**
  38  *
  39  */
  40 public class X509CertificateViewAdapter implements SslUntrustedCertDialog.CertificateViewAdapter {
  41
  42     //private final static String TAG = X509CertificateViewAdapter.class.getSimpleName();
  43
  44     private X509Certificate mCertificate = null;
  45
  46     public X509CertificateViewAdapter(X509Certificate certificate) {
  47         mCertificate = certificate;
  48     }
  49
  50     @Override
  51     public void updateCertificateView(View dialogView) {
  52         TextView nullCerView = (TextView) dialogView.findViewById(R.id.null_cert);
  53
  54         if (mCertificate != null) {
  55             nullCerView.setVisibility(View.GONE);
  56             showSubject(mCertificate.getSubjectX500Principal(), dialogView);
  57             showIssuer(mCertificate.getIssuerX500Principal(), dialogView);
  58             showValidity(mCertificate.getNotBefore(), mCertificate.getNotAfter(), dialogView);
  59             showSignature(dialogView);
  60
  61         } else {
  62             nullCerView.setVisibility(View.VISIBLE);
  63         }
  64     }
  65
  66     private void showSignature(View dialogView) {
  67         TextView sigView = ((TextView)dialogView.findViewById(R.id.value_signature));
  68         TextView algorithmView = ((TextView)dialogView.findViewById(R.id.value_signature_algorithm));
  69         sigView.setText(getHex(mCertificate.getSignature()));
  70         algorithmView.setText(mCertificate.getSigAlgName());
  71     }
  72
  73     public String getHex(final byte [] raw) {
  74         if (raw == null) {
  75            return null;
  76         }
  77         final StringBuilder hex = new StringBuilder(2 * raw.length);
  78         for (final byte b : raw) {
  79            final int hiVal = (b & 0xF0) >> 4;
  80            final int loVal = b & 0x0F;
  81            hex.append((char) ('0' + (hiVal + (hiVal / 10 * 7))));
  82            hex.append((char) ('0' + (loVal + (loVal / 10 * 7))));
  83         }
  84         return hex.toString();
  85      }
  86
  87     private void showValidity(Date notBefore, Date notAfter, View dialogView) {
  88         TextView fromView = ((TextView)dialogView.findViewById(R.id.value_validity_from));
  89         TextView toView = ((TextView)dialogView.findViewById(R.id.value_validity_to));
  90         DateFormat dateFormat = DateFormat.getDateInstance();
  91         fromView.setText(dateFormat.format(notBefore));
  92         toView.setText(dateFormat.format(notAfter));
  93     }
  94
  95     private void showSubject(X500Principal subject, View dialogView) {
  96         Map<String, String> s = parsePrincipal(subject);
  97         TextView cnView = ((TextView)dialogView.findViewById(R.id.value_subject_CN));
  98         TextView oView = ((TextView)dialogView.findViewById(R.id.value_subject_O));
  99         TextView ouView = ((TextView)dialogView.findViewById(R.id.value_subject_OU));
 100         TextView cView = ((TextView)dialogView.findViewById(R.id.value_subject_C));
 101         TextView stView = ((TextView)dialogView.findViewById(R.id.value_subject_ST));
 102         TextView lView = ((TextView)dialogView.findViewById(R.id.value_subject_L));
 103
 104         if (s.get("CN") != null) {
 105             cnView.setText(s.get("CN"));
 106             cnView.setVisibility(View.VISIBLE);
 107         } else {
 108             cnView.setVisibility(View.GONE);
 109         }
 110         if (s.get("O") != null) {
 111             oView.setText(s.get("O"));
 112             oView.setVisibility(View.VISIBLE);
 113         } else {
 114             oView.setVisibility(View.GONE);
 115         }
 116         if (s.get("OU") != null) {
 117             ouView.setText(s.get("OU"));
 118             ouView.setVisibility(View.VISIBLE);
 119         } else {
 120             ouView.setVisibility(View.GONE);
 121         }
 122         if (s.get("C") != null) {
 123             cView.setText(s.get("C"));
 124             cView.setVisibility(View.VISIBLE);
 125         } else {
 126             cView.setVisibility(View.GONE);
 127         }
 128         if (s.get("ST") != null) {
 129             stView.setText(s.get("ST"));
 130             stView.setVisibility(View.VISIBLE);
 131         } else {
 132             stView.setVisibility(View.GONE);
 133         }
 134         if (s.get("L") != null) {
 135             lView.setText(s.get("L"));
 136             lView.setVisibility(View.VISIBLE);
 137         } else {
 138             lView.setVisibility(View.GONE);
 139         }
 140     }
 141
 142     private void showIssuer(X500Principal issuer, View dialogView) {
 143         Map<String, String> s = parsePrincipal(issuer);
 144         TextView cnView = ((TextView)dialogView.findViewById(R.id.value_issuer_CN));
 145         TextView oView = ((TextView)dialogView.findViewById(R.id.value_issuer_O));
 146         TextView ouView = ((TextView)dialogView.findViewById(R.id.value_issuer_OU));
 147         TextView cView = ((TextView)dialogView.findViewById(R.id.value_issuer_C));
 148         TextView stView = ((TextView)dialogView.findViewById(R.id.value_issuer_ST));
 149         TextView lView = ((TextView)dialogView.findViewById(R.id.value_issuer_L));
 150
 151         if (s.get("CN") != null) {
 152             cnView.setText(s.get("CN"));
 153             cnView.setVisibility(View.VISIBLE);
 154         } else {
 155             cnView.setVisibility(View.GONE);
 156         }
 157         if (s.get("O") != null) {
 158             oView.setText(s.get("O"));
 159             oView.setVisibility(View.VISIBLE);
 160         } else {
 161             oView.setVisibility(View.GONE);
 162         }
 163         if (s.get("OU") != null) {
 164             ouView.setText(s.get("OU"));
 165             ouView.setVisibility(View.VISIBLE);
 166         } else {
 167             ouView.setVisibility(View.GONE);
 168         }
 169         if (s.get("C") != null) {
 170             cView.setText(s.get("C"));
 171             cView.setVisibility(View.VISIBLE);
 172         } else {
 173             cView.setVisibility(View.GONE);
 174         }
 175         if (s.get("ST") != null) {
 176             stView.setText(s.get("ST"));
 177             stView.setVisibility(View.VISIBLE);
 178         } else {
 179             stView.setVisibility(View.GONE);
 180         }
 181         if (s.get("L") != null) {
 182             lView.setText(s.get("L"));
 183             lView.setVisibility(View.VISIBLE);
 184         } else {
 185             lView.setVisibility(View.GONE);
 186         }
 187     }
 188
 189
 190     private Map<String, String> parsePrincipal(X500Principal principal) {
 191         Map<String, String> result = new HashMap<String, String>();
 192         String toParse = principal.getName();
 193         String[] pieces = toParse.split(",");
 194         String[] tokens = {"CN", "O", "OU", "C", "ST", "L"};
 195         for (int i=0; i < pieces.length ; i++) {
 196             for (int j=0; j<tokens.length; j++) {
 197                 if (pieces[i].startsWith(tokens[j] + "=")) {
 198                     result.put(tokens[j], pieces[i].substring(tokens[j].length()+1));
 199                 }
 200             }
 201         }
 202         return result;
 203     }
 204
 205 }