Auto delete block sender rules

app/src/main/java/eu/faircode/email/EntityOperation.java

@@ -188,7 +188,6 @@ public class EntityOperation {
                             db.message().setMessageImportance(similar.id, null);
                     }
 
-
                 EntityAccount account = db.account().getAccount(message.account);
                 if (!"imap.gmail.com".equalsIgnoreCase(account == null ? null : account.host) ||
                         !EntityFolder.ARCHIVE.equals(source.type) ||
@@ -201,6 +200,13 @@ public class EntityOperation {
                     EntityMessage.snooze(context, message.id, null);
                 }
 
+                if (EntityFolder.JUNK.equals(source.type) && EntityFolder.INBOX.equals(target.type)) {
+                    List<EntityRule> rules = db.rule().getRules(target.id);
+                    for (EntityRule rule : rules)
+                        if (rule.isBlockingSender(message, source))
+                            db.rule().deleteRule(rule.id);
+                }
+
                 // Create copy without uid in target folder
                 // Message with same msgid can be in archive
                 if (message.uid != null &&

app/src/main/java/eu/faircode/email/EntityRule.java

@@ -567,7 +567,7 @@ public class EntityRule {
         jcondition.put("sender", jsender);
 
         JSONObject jaction = new JSONObject();
-        jaction.put("type", EntityRule.TYPE_MOVE);
+        jaction.put("type", TYPE_MOVE);
         jaction.put("target", junk.id);
 
         DB db = DB.getInstance(context);
@@ -584,6 +584,34 @@ public class EntityRule {
         return rule;
     }
 
+    boolean isBlockingSender(EntityMessage message, EntityFolder junk) throws JSONException {
+        if (message.from == null || message.from.length == 0)
+            return false;
+        String sender = ((InternetAddress) message.from[0]).getAddress();
+        if (sender == null)
+            return false;
+        int at = sender.indexOf('@');
+        String domain = (at < 0 ? sender : sender.substring(at));
+
+        JSONObject jcondition = new JSONObject(condition);
+        if (!jcondition.has("sender"))
+            return false;
+        JSONObject jsender = jcondition.getJSONObject("sender");
+        if (jsender.optBoolean("regex"))
+            return false;
+        String value = jsender.optString("value");
+        if (!sender.equals(value) && !domain.equals(value))
+            return false;
+
+        JSONObject jaction = new JSONObject(action);
+        if (jaction.optInt("type", -1) != TYPE_MOVE)
+            return false;
+        if (jaction.optInt("target", -1) != junk.id)
+            return false;
+
+        return true;
+    }
+
     @Override
     public boolean equals(Object obj) {
         if (obj instanceof EntityRule) {