From 0ed29c1c77c065d73af5c9f1d7769c6c1a1a9c6f Mon Sep 17 00:00:00 2001
From: Daniel Gultsch <daniel.gultsch@rwth-aachen.de>
Date: Thu, 8 May 2014 14:23:09 +0200
Subject: more informative dialog if contact doesn't announce public key

---
 res/values/strings.xml                             |  2 +
 .../conversations/ui/ConversationActivity.java     | 50 ++++++++++++++--------
 .../conversations/ui/ConversationFragment.java     | 41 ++++++++++--------
 3 files changed, 57 insertions(+), 36 deletions(-)

diff --git a/res/values/strings.xml b/res/values/strings.xml
index c3c7f658..61134d29 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -84,4 +84,6 @@
     <string name="restart">Restart</string>
     <string name="install">Install</string>
     <string name="offering">offering&#8230;</string>
+    <string name="no_pgp_key">No openPGP Key found</string>
+    <string name="contact_has_no_pgp_key">Conversations is unable to encrypt your messages because your contact is not announcing his or hers public key.\n\n<small>Please ask your contact to setup openPGP.</small></string>
 </resources>
diff --git a/src/eu/siacs/conversations/ui/ConversationActivity.java b/src/eu/siacs/conversations/ui/ConversationActivity.java
index 565d7ff4..7c87a0f6 100644
--- a/src/eu/siacs/conversations/ui/ConversationActivity.java
+++ b/src/eu/siacs/conversations/ui/ConversationActivity.java
@@ -341,26 +341,42 @@ public class ConversationActivity extends XmppActivity {
 	}
 
 	private void attachFile() {
-		if (getSelectedConversation().getNextEncryption() == Message.ENCRYPTION_PGP) {
+		final Conversation conversation = getSelectedConversation();
+		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 			if (hasPgp()) {
-				xmppConnectionService.getPgpEngine().hasKey(getSelectedConversation().getContact(), new OnPgpEngineResult() {
-					
-					@Override
-					public void userInputRequried(PendingIntent pi) {
-						ConversationActivity.this.runIntent(pi, REQUEST_SEND_PGP_IMAGE);
-					}
-					
-					@Override
-					public void success() {
-						attachFileDialog();
-					}
-					
-					@Override
-					public void error(OpenPgpError openPgpError) {
-						// TODO Auto-generated method stub
+				if (conversation.getContact().getPgpKeyId()!=0) {
+					xmppConnectionService.getPgpEngine().hasKey(conversation.getContact(), new OnPgpEngineResult() {
+						
+						@Override
+						public void userInputRequried(PendingIntent pi) {
+							ConversationActivity.this.runIntent(pi, REQUEST_SEND_PGP_IMAGE);
+						}
 						
+						@Override
+						public void success() {
+							attachFileDialog();
+						}
+						
+						@Override
+						public void error(OpenPgpError openPgpError) {
+							// TODO Auto-generated method stub
+							
+						}
+					});
+				} else {
+					final ConversationFragment fragment = (ConversationFragment) getFragmentManager()
+							.findFragmentByTag("conversation");
+					if (fragment != null) {
+						fragment.showNoPGPKeyDialog(new OnClickListener() {
+							
+							@Override
+							public void onClick(DialogInterface dialog, int which) {
+								conversation.setNextEncryption(Message.ENCRYPTION_NONE);
+								attachFileDialog();
+							}
+						});
 					}
-				});
+				}
 			}
 		} else if (getSelectedConversation().getNextEncryption() == Message.ENCRYPTION_NONE) {
 			attachFileDialog();
diff --git a/src/eu/siacs/conversations/ui/ConversationFragment.java b/src/eu/siacs/conversations/ui/ConversationFragment.java
index 33aa5b5c..e370deb0 100644
--- a/src/eu/siacs/conversations/ui/ConversationFragment.java
+++ b/src/eu/siacs/conversations/ui/ConversationFragment.java
@@ -718,29 +718,32 @@ public class ConversationFragment extends Fragment {
 						});
 
 			} else {
-				AlertDialog.Builder builder = new AlertDialog.Builder(
-						getActivity());
-				builder.setTitle("No openPGP key found");
-				builder.setIconAttribute(android.R.attr.alertDialogIcon);
-				builder.setMessage("There is no openPGP key associated with this contact");
-				builder.setNegativeButton("Cancel", null);
-				builder.setPositiveButton("Send plain text",
-						new DialogInterface.OnClickListener() {
+				showNoPGPKeyDialog(new DialogInterface.OnClickListener() {
 
-							@Override
-							public void onClick(DialogInterface dialog,
-									int which) {
-								conversation
-										.setNextEncryption(Message.ENCRYPTION_NONE);
-								message.setEncryption(Message.ENCRYPTION_NONE);
-								xmppService.sendMessage(message, null);
-								chatMsg.setText("");
-							}
-						});
-				builder.create().show();
+					@Override
+					public void onClick(DialogInterface dialog,
+							int which) {
+						conversation
+								.setNextEncryption(Message.ENCRYPTION_NONE);
+						message.setEncryption(Message.ENCRYPTION_NONE);
+						xmppService.sendMessage(message, null);
+						chatMsg.setText("");
+					}
+				});
 			}
 		}
 	}
+	
+	public void showNoPGPKeyDialog(DialogInterface.OnClickListener listener) {
+		AlertDialog.Builder builder = new AlertDialog.Builder(
+				getActivity());
+		builder.setTitle(getString(R.string.no_pgp_key));
+		builder.setIconAttribute(android.R.attr.alertDialogIcon);
+		builder.setMessage(getText(R.string.contact_has_no_pgp_key));
+		builder.setNegativeButton(getString(R.string.cancel), null);
+		builder.setPositiveButton(getString(R.string.send_unencrypted),listener);
+		builder.create().show();
+	}
 
 	protected void sendOtrMessage(final Message message) {
 		ConversationActivity activity = (ConversationActivity) getActivity();
-- 
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