2 files changed, 18 insertions, 13 deletions
diff --git a/src/main/java/com/juick/service/MessagesService.java b/src/main/java/com/juick/service/MessagesService.java
index e98b2b1d..e6e039d3 100644
--- a/src/main/java/com/juick/service/MessagesService.java
+++ b/src/main/java/com/juick/service/MessagesService.java
@@ -33,9 +33,6 @@ public interface MessagesService {
     int createMessage(int uid, String txt, String attachment, List<com.juick.Tag> tags);
 
     int createReply(int mid, int rid, User user, String txt, String attachment);
-
-    int getReplyIDIncrement(int mid);
-
     enum RecommendStatus {
         Error,
         Added,
diff --git a/src/main/java/com/juick/service/MessagesServiceImpl.java b/src/main/java/com/juick/service/MessagesServiceImpl.java
index a1ba26ac..099934ab 100644
--- a/src/main/java/com/juick/service/MessagesServiceImpl.java
+++ b/src/main/java/com/juick/service/MessagesServiceImpl.java
@@ -184,7 +184,7 @@ public class MessagesServiceImpl extends BaseJdbcService implements MessagesServ
     @Transactional
     @Override
     public int createReply(final int mid, final int rid, final User user, final String txt, final String attachment) {
-        int ridnew = getReplyIDIncrement(mid);
+        int ridnew = getReplyIDIncrement(mid, user.getUid());
         Timestamp ts = Timestamp.from(Instant.now());
         getJdbcTemplate().update("INSERT INTO replies(message_id, reply_id, user_id, replyto, attach, txt, ts, updated_at, user_uri) " +
                         "VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)",
@@ -200,27 +200,35 @@ public class MessagesServiceImpl extends BaseJdbcService implements MessagesServ
         return ridnew;
     }
 
-    @Override
-    public int getReplyIDIncrement(final int mid) {
+    public int getReplyIDIncrement(final int mid, final int uid) {
         return getJdbcTemplate().execute((ConnectionCallback<Integer>) conn -> {
             conn.setAutoCommit(false);
-            final int replyNo;
-            try (PreparedStatement ps = conn.prepareStatement("SELECT maxreplyid+1 FROM messages WHERE message_id=? FOR UPDATE")) {
+            int replyNo;
+            final int readOnly;
+            final int userId;
+            try (PreparedStatement ps = conn.prepareStatement("SELECT maxreplyid+1, readonly, user_id FROM messages WHERE message_id=? FOR UPDATE")) {
                 ps.setInt(1, mid);
                 try (ResultSet resultSet = ps.executeQuery()) {
                     if (resultSet.next()) {
                         replyNo = resultSet.getInt(1);
+                        readOnly = resultSet.getInt(2);
+                        userId = resultSet.getInt(3);
                     } else {
                         throw new IncorrectResultSizeDataAccessException("while getting getReplyIDIncrement, mid=" + mid, 1, 0);
                     }
                 }
             }
-            try (PreparedStatement ps = conn.prepareStatement("UPDATE messages SET maxreplyid=? WHERE message_id=?")) {
-                ps.setInt(1, replyNo);
-                ps.setInt(2, mid);
-                if (ps.executeUpdate() != 1) {
-                    throw new IncorrectResultSizeDataAccessException("Cannot find a message to update: " + mid, 1, 0);
+            // author can reply to his readonly post
+            if (readOnly == 0 || uid == userId) {
+                try (PreparedStatement ps = conn.prepareStatement("UPDATE messages SET maxreplyid=? WHERE message_id=?")) {
+                    ps.setInt(1, replyNo);
+                    ps.setInt(2, mid);
+                    if (ps.executeUpdate() != 1) {
+                        throw new IncorrectResultSizeDataAccessException("Cannot find a message to update: " + mid, 1, 0);
+                    }
                 }
+            } else {
+                replyNo = -1;
             }
             conn.commit();
             return replyNo;