show unknown otr fingerprint warining

1 files changed, 165 insertions, 60 deletions

diff --git a/src/de/gultsch/chat/ui/ConversationFragment.java b/src/de/gultsch/chat/ui/ConversationFragment.java
index 8ec511fc..1f125ab0 100644
--- a/src/de/gultsch/chat/ui/ConversationFragment.java
+++ b/src/de/gultsch/chat/ui/ConversationFragment.java
@@ -1,15 +1,23 @@
 package de.gultsch.chat.ui;
 
 import java.util.ArrayList;
+import java.util.Hashtable;
 import java.util.List;
+import java.util.Set;
+
+import net.java.otr4j.OtrException;
+import net.java.otr4j.session.SessionStatus;
 
 import de.gultsch.chat.R;
 import de.gultsch.chat.entities.Contact;
 import de.gultsch.chat.entities.Conversation;
 import de.gultsch.chat.entities.Message;
+import de.gultsch.chat.services.XmppConnectionService;
 import de.gultsch.chat.utils.PhoneHelper;
 import de.gultsch.chat.utils.UIHelper;
+import android.app.AlertDialog;
 import android.app.Fragment;
+import android.content.DialogInterface;
 import android.content.SharedPreferences;
 import android.graphics.Typeface;
 import android.net.Uri;
@@ -21,23 +29,97 @@ import android.view.View.OnClickListener;
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.EditText;
+import android.widget.LinearLayout;
 import android.widget.ListView;
 import android.widget.ImageButton;
 import android.widget.ImageView;
 import android.widget.TextView;
 
 public class ConversationFragment extends Fragment {
-	
+
 	protected Conversation conversation;
 	protected ListView messagesView;
 	protected LayoutInflater inflater;
 	protected List<Message> messageList = new ArrayList<Message>();
 	protected ArrayAdapter<Message> messageListAdapter;
 	protected Contact contact;
-	
+
 	private EditText chatMsg;
-	private int nextMessageEncryption = Message.ENCRYPTION_NONE;
-	
+
+	private OnClickListener sendMsgListener = new OnClickListener() {
+
+		@Override
+		public void onClick(View v) {
+			ConversationActivity activity = (ConversationActivity) getActivity();
+			final XmppConnectionService xmppService = activity.xmppConnectionService;
+			if (chatMsg.getText().length() < 1)
+				return;
+			final Message message = new Message(conversation, chatMsg.getText()
+					.toString(), conversation.nextMessageEncryption);
+			if (conversation.nextMessageEncryption == Message.ENCRYPTION_OTR) {
+				if (conversation.hasValidOtrSession()) {
+					activity.xmppConnectionService.sendMessage(
+							conversation.getAccount(), message, null);
+					chatMsg.setText("");
+				} else {
+					Hashtable<String, Integer> presences = conversation
+							.getContact().getPresences();
+					if (presences.size() == 0) {
+						AlertDialog.Builder builder = new AlertDialog.Builder(
+								getActivity());
+						builder.setTitle("Contact is offline");
+						builder.setIconAttribute(android.R.attr.alertDialogIcon);
+						builder.setMessage("Sending OTR encrypted messages to an offline contact is impossible.");
+						builder.setPositiveButton("Send plain text",
+								new DialogInterface.OnClickListener() {
+
+									@Override
+									public void onClick(DialogInterface dialog,
+											int which) {
+										conversation.nextMessageEncryption = Message.ENCRYPTION_NONE;
+										message.setEncryption(Message.ENCRYPTION_NONE);
+										xmppService.sendMessage(
+												conversation.getAccount(),
+												message, null);
+										chatMsg.setText("");
+									}
+								});
+						builder.setNegativeButton("Cancel", null);
+						builder.create().show();
+					} else if (presences.size() == 1) {
+						xmppService.sendMessage(conversation.getAccount(),
+								message,
+								(String) presences.keySet().toArray()[0]);
+						chatMsg.setText("");
+					}
+				}
+			} else {
+				xmppService.sendMessage(conversation.getAccount(), message,
+						null);
+				chatMsg.setText("");
+			}
+		}
+	};
+
+	public void updateChatMsgHint() {
+		if (conversation.getMode() == Conversation.MODE_MULTI) {
+			chatMsg.setHint("Send message to conference");
+		} else {
+			switch (conversation.nextMessageEncryption) {
+			case Message.ENCRYPTION_NONE:
+				chatMsg.setHint("Send plain text message");
+				break;
+			case Message.ENCRYPTION_OTR:
+				chatMsg.setHint("Send OTR encrypted message");
+				break;
+			case Message.ENCRYPTION_PGP:
+				chatMsg.setHint("Send openPGP encryted messeage");
+			default:
+				break;
+			}
+		}
+	}
+
 	@Override
 	public View onCreateView(final LayoutInflater inflater,
 			ViewGroup container, Bundle savedInstanceState) {
@@ -47,40 +129,32 @@ public class ConversationFragment extends Fragment {
 		final View view = inflater.inflate(R.layout.fragment_conversation,
 				container, false);
 		chatMsg = (EditText) view.findViewById(R.id.textinput);
-		((ImageButton) view.findViewById(R.id.textSendButton))
-				.setOnClickListener(new OnClickListener() {
-
-					@Override
-					public void onClick(View v) {
-						ConversationActivity activity = (ConversationActivity) getActivity();
-						if (chatMsg.getText().length() < 1)
-							return;
-						Message message = new Message(conversation, chatMsg
-								.getText().toString(), nextMessageEncryption);
-						activity.xmppConnectionService.sendMessage(conversation.getAccount(),message);
-						chatMsg.setText("");
-					}
-				});
+		ImageButton sendButton = (ImageButton) view
+				.findViewById(R.id.textSendButton);
+		sendButton.setOnClickListener(this.sendMsgListener);
 
 		messagesView = (ListView) view.findViewById(R.id.messages_view);
-		
+
 		SharedPreferences sharedPref = PreferenceManager
-				.getDefaultSharedPreferences(getActivity().getApplicationContext());
-		boolean showPhoneSelfContactPicture = sharedPref.getBoolean("show_phone_selfcontact_picture",true);
-		
+				.getDefaultSharedPreferences(getActivity()
+						.getApplicationContext());
+		boolean showPhoneSelfContactPicture = sharedPref.getBoolean(
+				"show_phone_selfcontact_picture", true);
+
 		final Uri selfiUri;
 		if (showPhoneSelfContactPicture) {
-			selfiUri =  PhoneHelper.getSefliUri(getActivity());
+			selfiUri = PhoneHelper.getSefliUri(getActivity());
 		} else {
 			selfiUri = null;
 		}
-		
+
 		messageListAdapter = new ArrayAdapter<Message>(this.getActivity()
-				.getApplicationContext(), R.layout.message_sent, this.messageList) {
+				.getApplicationContext(), R.layout.message_sent,
+				this.messageList) {
 
 			private static final int SENT = 0;
 			private static final int RECIEVED = 1;
-			
+
 			@Override
 			public int getViewTypeCount() {
 				return 2;
@@ -111,32 +185,42 @@ public class ConversationFragment extends Fragment {
 						break;
 					}
 				}
-				ImageView imageView = (ImageView) view.findViewById(R.id.message_photo);
+				ImageView imageView = (ImageView) view
+						.findViewById(R.id.message_photo);
 				if (type == RECIEVED) {
-					if(item.getConversation().getMode()==Conversation.MODE_SINGLE) {
+					if (item.getConversation().getMode() == Conversation.MODE_SINGLE) {
 						Uri uri = item.getConversation().getProfilePhotoUri();
-						if (uri!=null) {
+						if (uri != null) {
 							imageView.setImageURI(uri);
 						} else {
-							imageView.setImageBitmap(UIHelper.getUnknownContactPicture(item.getConversation().getName(), 200));
+							imageView.setImageBitmap(UIHelper
+									.getUnknownContactPicture(item
+											.getConversation().getName(), 200));
 						}
-					} else if (item.getConversation().getMode()==Conversation.MODE_MULTI) {
-						if (item.getCounterpart()!=null) {
-							imageView.setImageBitmap(UIHelper.getUnknownContactPicture(item.getCounterpart(), 200));
+					} else if (item.getConversation().getMode() == Conversation.MODE_MULTI) {
+						if (item.getCounterpart() != null) {
+							imageView.setImageBitmap(UIHelper
+									.getUnknownContactPicture(
+											item.getCounterpart(), 200));
 						} else {
-							imageView.setImageBitmap(UIHelper.getUnknownContactPicture(item.getConversation().getName(), 200));
+							imageView.setImageBitmap(UIHelper
+									.getUnknownContactPicture(item
+											.getConversation().getName(), 200));
 						}
 					}
 				} else {
-					if (selfiUri!=null) {
+					if (selfiUri != null) {
 						imageView.setImageURI(selfiUri);
 					} else {
-						imageView.setImageBitmap(UIHelper.getUnknownContactPicture(conversation.getAccount().getJid(),200));
+						imageView.setImageBitmap(UIHelper
+								.getUnknownContactPicture(conversation
+										.getAccount().getJid(), 200));
 					}
 				}
-				TextView messageBody = (TextView) view.findViewById(R.id.message_body);
+				TextView messageBody = (TextView) view
+						.findViewById(R.id.message_body);
 				String body = item.getBody();
-				if (body!=null) {
+				if (body != null) {
 					messageBody.setText(body.trim());
 				}
 				TextView time = (TextView) view.findViewById(R.id.message_time);
@@ -144,13 +228,16 @@ public class ConversationFragment extends Fragment {
 					time.setTypeface(null, Typeface.ITALIC);
 					time.setText("sending\u2026");
 				} else {
-					time.setTypeface(null,Typeface.NORMAL);
-					if ((item.getConversation().getMode()==Conversation.MODE_SINGLE)||(type != RECIEVED)) {
+					time.setTypeface(null, Typeface.NORMAL);
+					if ((item.getConversation().getMode() == Conversation.MODE_SINGLE)
+							|| (type != RECIEVED)) {
 						time.setText(UIHelper.readableTimeDifference(item
-							.getTimeSent()));
-					} else {
-						time.setText(item.getCounterpart()+" \u00B7 "+UIHelper.readableTimeDifference(item
 								.getTimeSent()));
+					} else {
+						time.setText(item.getCounterpart()
+								+ " \u00B7 "
+								+ UIHelper.readableTimeDifference(item
+										.getTimeSent()));
 					}
 				}
 				return view;
@@ -165,7 +252,7 @@ public class ConversationFragment extends Fragment {
 	public void onStart() {
 		super.onStart();
 		final ConversationActivity activity = (ConversationActivity) getActivity();
-		
+
 		if (activity.xmppConnectionServiceBound) {
 			this.conversation = activity.getSelectedConversation();
 			updateMessages();
@@ -182,7 +269,7 @@ public class ConversationFragment extends Fragment {
 			}
 		}
 	}
-	
+
 	public void onBackendConnected() {
 		final ConversationActivity activity = (ConversationActivity) getActivity();
 		this.conversation = activity.getSelectedConversation();
@@ -201,32 +288,50 @@ public class ConversationFragment extends Fragment {
 	}
 
 	public void updateMessages() {
+		ConversationActivity activity = (ConversationActivity) getActivity();
 		this.messageList.clear();
 		this.messageList.addAll(this.conversation.getMessages());
 		this.messageListAdapter.notifyDataSetChanged();
-		if (messageList.size()>=1) {
-			nextMessageEncryption = this.conversation.getLatestMessage().getEncryption();
+		if (messageList.size() >= 1) {
+			int latestEncryption = this.conversation.getLatestMessage()
+					.getEncryption();
+			conversation.nextMessageEncryption = latestEncryption;
+			makeFingerprintWarning(latestEncryption);
 		}
 		getActivity().invalidateOptionsMenu();
-		switch (nextMessageEncryption) {
-		case Message.ENCRYPTION_NONE:
-			chatMsg.setHint("Send plain text message");
-			break;
-		case Message.ENCRYPTION_OTR:
-			chatMsg.setHint("Send OTR encrypted message");
-			break;
-		case Message.ENCRYPTION_PGP:
-			chatMsg.setHint("Send openPGP encryted messeage");
-		default:
-			break;
-		}
+		updateChatMsgHint();
 		int size = this.messageList.size();
 		if (size >= 1)
 			messagesView.setSelection(size - 1);
-		ConversationActivity activity = (ConversationActivity) getActivity();
 		if (!activity.shouldPaneBeOpen()) {
 			conversation.markRead();
 			activity.updateConversationList();
 		}
 	}
+
+	protected void makeFingerprintWarning(int latestEncryption) {
+		final LinearLayout fingerprintWarning = (LinearLayout) getView()
+				.findViewById(R.id.new_fingerprint);
+		Set<String> knownFingerprints = conversation.getContact()
+				.getOtrFingerprints();
+		if ((latestEncryption == Message.ENCRYPTION_OTR)
+				&& (conversation.hasValidOtrSession()
+						&& (conversation.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) && (!knownFingerprints
+							.contains(conversation.getOtrFingerprint())))) {
+			fingerprintWarning.setVisibility(View.VISIBLE);
+			TextView fingerprint = (TextView) getView().findViewById(
+					R.id.otr_fingerprint);
+			fingerprint.setText(conversation.getOtrFingerprint());
+			fingerprintWarning.setOnClickListener(new OnClickListener() {
+
+				@Override
+				public void onClick(View v) {
+					AlertDialog dialog = UIHelper.getVerifyFingerprintDialog((ConversationActivity) getActivity(),conversation,fingerprintWarning);
+					dialog.show();
+				}
+			});
+		} else {
+			fingerprintWarning.setVisibility(View.GONE);
+		}
+	}
 }