X-Git-Url: http://git.linex4red.de/pub/Android/ownCloud.git/blobdiff_plain/e280f5e6181e8a991c201ef8b99bccfaa89b3204..8e1a2573b9812fba2c5d6f965524ea1f53411238:/src/com/owncloud/android/ui/dialog/SslUntrustedCertDialog.java

diff --git a/src/com/owncloud/android/ui/dialog/SslUntrustedCertDialog.java b/src/com/owncloud/android/ui/dialog/SslUntrustedCertDialog.java
new file mode 100644
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+++ b/src/com/owncloud/android/ui/dialog/SslUntrustedCertDialog.java
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+/* ownCloud Android client application
+ *   Copyright (C) 2012-2014 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.actionbarsherlock.app.SherlockDialogFragment;
+import com.owncloud.android.R;
+import com.owncloud.android.authentication.AuthenticatorActivity;
+import com.owncloud.android.lib.common.network.NetworkUtils;
+import com.owncloud.android.utils.Log_OC;
+
+import android.app.Dialog;
+import android.content.Context;
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.ViewGroup;
+import android.view.Window;
+import android.webkit.SslErrorHandler;
+import android.widget.Button;
+import android.widget.TextView;
+
+/**
+ * Dialog to show an Untrusted Certificate
+ * 
+ * @author masensio
+ *
+ */
+public class SslUntrustedCertDialog extends SherlockDialogFragment{
+    
+    private final static String TAG = SslUntrustedCertDialog.class.getSimpleName();
+    
+    private X509Certificate mCertificate;
+    private View mView;
+    private SslErrorHandler mHandler;
+    
+    private OnSslUntrustedCertListener mListener;
+    
+    public SslUntrustedCertDialog() {
+    }
+    
+    public SslUntrustedCertDialog(X509Certificate cert, OnSslUntrustedCertListener listener, SslErrorHandler handler) {
+        mCertificate = cert;
+        mListener = listener;
+        mHandler = handler;
+    }
+
+    public static SslUntrustedCertDialog newInstance(Context context, X509Certificate cert, OnSslUntrustedCertListener listener, 
+            SslErrorHandler handler) {
+        if (cert != null){
+            SslUntrustedCertDialog dialog = new SslUntrustedCertDialog(cert, listener, handler);
+            return dialog;
+        } else {
+            return null;
+        }
+    }
+    
+    
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setRetainInstance(true);
+        setCancelable(true);
+    }
+    
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        // Create a view by inflating desired layout
+        mView = inflater.inflate(R.layout.ssl_untrusted_cert_layout, container,  false);
+        
+        Button ok = (Button) mView.findViewById(R.id.untrusted_ok);
+        ok.setOnClickListener(new OnClickListener() {
+            
+            @Override
+            public void onClick(View v) {
+                try {
+                  saveServerCert();
+                  dismiss();
+                  if (mListener != null) {
+                      ((AuthenticatorActivity)getSherlockActivity()).reloadWebView();
+                      
+                  }
+                  else
+                      Log_OC.d(TAG, "Nobody there to notify the certificate was saved");
+                  
+              } catch (GeneralSecurityException e) {
+                  dismiss();
+                  if (mListener != null) {
+                      ((AuthenticatorActivity)getSherlockActivity()).cancelWebView();
+                      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) {
+                      ((AuthenticatorActivity)getSherlockActivity()).cancelWebView();
+                      mListener.onFailedSavingCertificate();
+                  }
+                  Log_OC.e(TAG, "Server certificate could not be saved in the known servers trust store ", e);
+              }
+                
+            }
+        });
+        
+        Button cancel = (Button) mView.findViewById(R.id.untrusted_cancel);
+        cancel.setOnClickListener(new OnClickListener() {
+            
+            @Override
+            public void onClick(View v) {
+                getDialog().cancel();
+                ((AuthenticatorActivity)getSherlockActivity()).cancelWebView();
+            }
+        });
+        
+        Button details = (Button) mView.findViewById(R.id.untrusted_details_btn);
+        details.setOnClickListener(new OnClickListener() {
+            
+            @Override
+            public void onClick(View v) {
+                View detailsScroll = mView.findViewById(R.id.untrusted_details_scroll);
+                if (detailsScroll.getVisibility() == View.VISIBLE) {
+                    detailsScroll.setVisibility(View.GONE);
+                    ((Button) v).setText(R.string.ssl_validator_btn_details_see);
+
+                } else {
+                    detailsScroll.setVisibility(View.VISIBLE);
+                    ((Button) v).setText(R.string.ssl_validator_btn_details_hide);
+                    
+                    showCertificateData(mCertificate);
+                }
+                
+            }
+        });
+        
+        return mView;
+    }
+
+    @Override
+    public Dialog onCreateDialog(Bundle savedInstanceState) {
+        final Dialog dialog = super.onCreateDialog(savedInstanceState);
+        dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
+        
+        return dialog;
+    }
+
+    @Override
+    public void onDestroyView() {
+        if (getDialog() != null && getRetainInstance())
+            getDialog().setDismissMessage(null);
+            super.onDestroyView();
+    }
+    
+    private void showCertificateData(X509Certificate cert) {
+
+        TextView nullCerView = (TextView) mView.findViewById(R.id.untrusted_null_cert);
+        
+        if (cert != null) {
+            nullCerView.setVisibility(View.GONE);
+            showSubject(cert.getSubjectX500Principal());
+            showIssuer(cert.getIssuerX500Principal());
+            showValidity(cert.getNotBefore(), cert.getNotAfter());
+            showSignature(cert);
+            
+        } else {
+            nullCerView.setVisibility(View.VISIBLE);
+        }
+    }
+
+    private void showSignature(X509Certificate cert) {
+        TextView sigView = ((TextView)mView.findViewById(R.id.untrusted_value_signature));
+        TextView algorithmView = ((TextView)mView.findViewById(R.id.untrusted_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();
+     }    
+
+    @SuppressWarnings("deprecation")
+    private void showValidity(Date notBefore, Date notAfter) {
+        TextView fromView = ((TextView)mView.findViewById(R.id.untrusted_value_validity_from));
+        TextView toView = ((TextView)mView.findViewById(R.id.untrusted_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.untrusted_value_subject_CN));
+        TextView oView = ((TextView)mView.findViewById(R.id.untrusted_value_subject_O));
+        TextView ouView = ((TextView)mView.findViewById(R.id.untrusted_value_subject_OU));
+        TextView cView = ((TextView)mView.findViewById(R.id.untrusted_value_subject_C));
+        TextView stView = ((TextView)mView.findViewById(R.id.untrusted_value_subject_ST));
+        TextView lView = ((TextView)mView.findViewById(R.id.untrusted_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.untrusted_value_issuer_CN));
+        TextView oView = ((TextView)mView.findViewById(R.id.untrusted_value_issuer_O));
+        TextView ouView = ((TextView)mView.findViewById(R.id.untrusted_value_issuer_OU));
+        TextView cView = ((TextView)mView.findViewById(R.id.untrusted_value_issuer_C));
+        TextView stView = ((TextView)mView.findViewById(R.id.untrusted_value_issuer_ST));
+        TextView lView = ((TextView)mView.findViewById(R.id.untrusted_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 (mCertificate != null) {
+            // TODO make this asynchronously, it can take some time
+            NetworkUtils.addCertToKnownServersStore(mCertificate, getSherlockActivity());
+        }
+    }
+
+    
+    public interface OnSslUntrustedCertListener {
+        public void onFailedSavingCertificate();
+    }
+
+}