From 9a7fc3d9b8a001e80097cb7762a738c71281a2e1 Mon Sep 17 00:00:00 2001
From: Daniel Gultsch <daniel@gultsch.de>
Date: Tue, 23 Mar 2021 11:52:34 +0100
Subject: [PATCH] disable omemo by default for *.covid.monal.im domains

---
 src/main/java/eu/siacs/conversations/Config.java    | 13 +++++++++++--
 .../conversations/crypto/XmppDomainVerifier.java    |  7 ++-----
 .../siacs/conversations/entities/Conversation.java  |  2 +-
 3 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/src/main/java/eu/siacs/conversations/Config.java b/src/main/java/eu/siacs/conversations/Config.java
index 667b9e76e..4ee4c1fb8 100644
--- a/src/main/java/eu/siacs/conversations/Config.java
+++ b/src/main/java/eu/siacs/conversations/Config.java
@@ -3,9 +3,11 @@ package eu.siacs.conversations;
 import android.graphics.Bitmap;
 import android.net.Uri;
 
+import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
 
+import eu.siacs.conversations.crypto.XmppDomainVerifier;
 import eu.siacs.conversations.xmpp.Jid;
 import eu.siacs.conversations.xmpp.chatstate.ChatState;
 
@@ -98,7 +100,7 @@ public final class Config {
 
     //remove *other* omemo devices from *your* device list announcement after not seeing any activity from them for 42 days. They will automatically add themselves after coming back online.
     public static final long OMEMO_AUTO_EXPIRY = 42 * MILLISECONDS_IN_DAY;
-    
+
     public static final boolean REMOVE_BROKEN_DEVICES = false;
     public static final boolean OMEMO_PADDING = false;
     public static final boolean PUT_AUTH_TAG_INTO_KEY = true;
@@ -176,7 +178,14 @@ public final class Config {
 
         //if the contacts domain matches one of the following domains OMEMO won’t be turned on automatically
         //can be used for well known, widely used gateways
-        public static final List<String> CONTACT_DOMAINS = Collections.singletonList("cheogram.com");
+        private static final List<String> CONTACT_DOMAINS = Arrays.asList(
+                "cheogram.com",
+                "*.covid.monal.im"
+        );
+
+        public static boolean matchesContactDomain(final String domain) {
+            return XmppDomainVerifier.matchDomain(domain, CONTACT_DOMAINS);
+        }
     }
 
     private Config() {
diff --git a/src/main/java/eu/siacs/conversations/crypto/XmppDomainVerifier.java b/src/main/java/eu/siacs/conversations/crypto/XmppDomainVerifier.java
index 689b465c9..7b741b864 100644
--- a/src/main/java/eu/siacs/conversations/crypto/XmppDomainVerifier.java
+++ b/src/main/java/eu/siacs/conversations/crypto/XmppDomainVerifier.java
@@ -71,8 +71,8 @@ public class XmppDomainVerifier implements DomainHostnameVerifier {
         }
     }
 
-    private static boolean matchDomain(String needle, List<String> haystack) {
-        for (String entry : haystack) {
+    public static boolean matchDomain(final String needle, final List<String> haystack) {
+        for (final String entry : haystack) {
             if (entry.startsWith("*.")) {
                 int offset = 0;
                 while (offset < needle.length()) {
@@ -80,16 +80,13 @@ public class XmppDomainVerifier implements DomainHostnameVerifier {
                     if (i < 0) {
                         break;
                     }
-                    Log.d(LOGTAG, "comparing " + needle.substring(i) + " and " + entry.substring(1));
                     if (needle.substring(i).equalsIgnoreCase(entry.substring(1))) {
-                        Log.d(LOGTAG, "domain " + needle + " matched " + entry);
                         return true;
                     }
                     offset = i + 1;
                 }
             } else {
                 if (entry.equalsIgnoreCase(needle)) {
-                    Log.d(LOGTAG, "domain " + needle + " matched " + entry);
                     return true;
                 }
             }
diff --git a/src/main/java/eu/siacs/conversations/entities/Conversation.java b/src/main/java/eu/siacs/conversations/entities/Conversation.java
index 11314952c..20db15da2 100644
--- a/src/main/java/eu/siacs/conversations/entities/Conversation.java
+++ b/src/main/java/eu/siacs/conversations/entities/Conversation.java
@@ -143,7 +143,7 @@ public class Conversation extends AbstractEntity implements Blockable, Comparabl
         }
         final String contact = conversation.getJid().getDomain().toEscapedString();
         final String account = conversation.getAccount().getServer();
-        if (Config.OMEMO_EXCEPTIONS.CONTACT_DOMAINS.contains(contact) || Config.OMEMO_EXCEPTIONS.ACCOUNT_DOMAINS.contains(account)) {
+        if (Config.OMEMO_EXCEPTIONS.matchesContactDomain(contact) || Config.OMEMO_EXCEPTIONS.ACCOUNT_DOMAINS.contains(account)) {
             return false;
         }
         return conversation.isSingleOrPrivateAndNonAnonymous() || conversation.getBooleanAttribute(ATTRIBUTE_FORMERLY_PRIVATE_NON_ANONYMOUS, false);