From 4c6ef3b24edcd1169940851fc01103cc9d29d2be Mon Sep 17 00:00:00 2001
From: Daniel Gultsch <daniel@gultsch.de>
Date: Sun, 22 Jan 2017 18:58:49 +0100
Subject: [PATCH] cleaning up crypto targets when conference member is getting
 removed

---
 .../conversations/parser/MessageParser.java   |  9 +++++++++
 .../services/XmppConnectionService.java       | 20 +++++++++++++++++++
 2 files changed, 29 insertions(+)

diff --git a/src/main/java/eu/siacs/conversations/parser/MessageParser.java b/src/main/java/eu/siacs/conversations/parser/MessageParser.java
index 7a08340b2..9a52ff802 100644
--- a/src/main/java/eu/siacs/conversations/parser/MessageParser.java
+++ b/src/main/java/eu/siacs/conversations/parser/MessageParser.java
@@ -624,6 +624,15 @@ public class MessageParser extends AbstractParser implements OnMessagePacketRece
 							mXmppConnectionService.getAvatarService().clear(conversation);
 							mXmppConnectionService.updateMucRosterUi();
 							mXmppConnectionService.updateConversationUi();
+							if (!user.getAffiliation().ranks(MucOptions.Affiliation.MEMBER)) {
+								Jid jid = user.getRealJid();
+								List<Jid> cryptoTargets = conversation.getAcceptedCryptoTargets();
+								if (cryptoTargets.remove(user.getRealJid())) {
+									Log.d(Config.LOGTAG,account.getJid().toBareJid()+": removed "+jid+" from crypto targets of "+conversation.getName());
+									conversation.setAcceptedCryptoTargets(cryptoTargets);
+									mXmppConnectionService.updateConversation(conversation);
+								}
+							}
 						}
 					}
 				}
diff --git a/src/main/java/eu/siacs/conversations/services/XmppConnectionService.java b/src/main/java/eu/siacs/conversations/services/XmppConnectionService.java
index e53b2524f..5f9498214 100644
--- a/src/main/java/eu/siacs/conversations/services/XmppConnectionService.java
+++ b/src/main/java/eu/siacs/conversations/services/XmppConnectionService.java
@@ -55,6 +55,7 @@ import java.util.HashSet;
 import java.util.Hashtable;
 import java.util.Iterator;
 import java.util.List;
+import java.util.ListIterator;
 import java.util.Locale;
 import java.util.Map;
 import java.util.concurrent.CopyOnWriteArrayList;
@@ -2140,6 +2141,7 @@ public class XmppConnectionService extends Service {
 		OnIqPacketReceived callback = new OnIqPacketReceived() {
 
 			private int i = 0;
+			private boolean success = true;
 
 			@Override
 			public void onIqPacketReceived(Account account, IqPacket packet) {
@@ -2155,10 +2157,28 @@ public class XmppConnectionService extends Service {
 						}
 					}
 				} else {
+					success = false;
 					Log.d(Config.LOGTAG,account.getJid().toBareJid()+": could not request affiliation "+affiliations[i]+" in "+conversation.getJid().toBareJid());
 				}
 				++i;
 				if (i >= affiliations.length) {
+					List<Jid> members = conversation.getMucOptions().getMembers();
+					if (success) {
+						List<Jid> cryptoTargets = conversation.getAcceptedCryptoTargets();
+						boolean changed = false;
+						for(ListIterator<Jid> iterator = cryptoTargets.listIterator(); iterator.hasNext();) {
+							Jid jid = iterator.next();
+							if (!members.contains(jid)) {
+								iterator.remove();
+								Log.d(Config.LOGTAG,account.getJid().toBareJid()+": removed "+jid+" from crypto targets of "+conversation.getName());
+								changed = true;
+							}
+						}
+						if (changed) {
+							conversation.setAcceptedCryptoTargets(cryptoTargets);
+							updateConversation(conversation);
+						}
+					}
 					Log.d(Config.LOGTAG,account.getJid().toBareJid()+": retrieved members for "+conversation.getJid().toBareJid()+": "+conversation.getMucOptions().getMembers());
 					getAvatarService().clear(conversation);
 					updateMucRosterUi();