merge server

12 files changed, 2020 insertions, 0 deletions

diff --git a/src/main/java/com/juick/server/AdsQueries.java b/src/main/java/com/juick/server/AdsQueries.java
new file mode 100644
index 00000000..06590817
--- /dev/null
+++ b/src/main/java/com/juick/server/AdsQueries.java
@@ -0,0 +1,51 @@
+/*
+ * Juick
+ * Copyright (C) 2008-2011, ugnich
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.juick.server;
+
+import org.springframework.dao.EmptyResultDataAccessException;
+import org.springframework.jdbc.core.JdbcTemplate;
+
+/**
+ *
+ * @author ugnich
+ */
+public class AdsQueries {
+
+    public static int getAdMID(JdbcTemplate sql, int uid) {
+        if (uid > 0) {
+            try {
+                return sql.queryForObject("SELECT message_id FROM ads_messages " +
+                                "WHERE message_id NOT IN (SELECT message_id FROM ads_messages_log WHERE user_id=? " +
+                                "AND ts>UNIX_TIMESTAMP()-60*60*24 GROUP BY message_id HAVING COUNT(*)>2) ORDER BY RAND() LIMIT 1",
+                        Integer.class, uid);
+            } catch (EmptyResultDataAccessException e) {
+                return 0;
+            }
+        } else {
+            try {
+                return sql.queryForObject("SELECT message_id FROM ads_messages ORDER BY RAND() LIMIT 1", Integer.class);
+            } catch (EmptyResultDataAccessException e) {
+                return 0;
+            }
+        }
+    }
+
+    public static void logAdMID(JdbcTemplate sql, int uid, int mid) {
+        sql.update("INSERT INTO ads_messages_log(user_id,message_id,ts) VALUES (?,?,UNIX_TIMESTAMP())", uid, mid);
+    }
+}
diff --git a/src/main/java/com/juick/server/CrosspostQueries.java b/src/main/java/com/juick/server/CrosspostQueries.java
new file mode 100644
index 00000000..04898d0a
--- /dev/null
+++ b/src/main/java/com/juick/server/CrosspostQueries.java
@@ -0,0 +1,62 @@
+/*
+ * Juick
+ * Copyright (C) 2008-2013, Ugnich Anton
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.juick.server;
+
+import org.apache.commons.lang3.tuple.Pair;
+import org.springframework.dao.EmptyResultDataAccessException;
+import org.springframework.jdbc.core.JdbcTemplate;
+
+import java.util.Optional;
+
+/**
+ *
+ * @author ugnich
+ */
+public class CrosspostQueries {
+
+    public static Optional<Pair<String, String>> getTwitterTokens(JdbcTemplate sql, int uid) {
+        try {
+            return sql.queryForObject("SELECT access_token,access_token_secret FROM twitter WHERE user_id=? AND crosspost=1",
+                    (rs, num) -> {
+                        return Optional.of(Pair.of(rs.getString(1), rs.getString(2)));
+                    }, uid);
+        } catch (EmptyResultDataAccessException e) {
+            return Optional.empty();
+        }
+    }
+
+    public static Optional<String> getFacebookToken(JdbcTemplate sql, int uid) {
+        try {
+            return Optional.of(sql.queryForObject("SELECT access_token FROM facebook WHERE user_id=? AND access_token IS NOT NULL " +
+                    "AND crosspost=1", String.class, uid));
+        } catch (EmptyResultDataAccessException e) {
+            return Optional.empty();
+        }
+    }
+
+    public static Optional<Pair<String, String>> getVKTokens(JdbcTemplate sql, int uid) {
+        try {
+            return sql.queryForObject("SELECT vk_id,access_token FROM vk WHERE user_id=? AND crosspost=1",
+                    (rs, num) -> {
+                        return Optional.of(Pair.of(rs.getString(1), rs.getString(2)));
+                    }, uid);
+        } catch (EmptyResultDataAccessException e) {
+            return Optional.empty();
+        }
+    }
+}
diff --git a/src/main/java/com/juick/server/MessagesQueries.java b/src/main/java/com/juick/server/MessagesQueries.java
new file mode 100644
index 00000000..a0242543
--- /dev/null
+++ b/src/main/java/com/juick/server/MessagesQueries.java
@@ -0,0 +1,663 @@
+/*
+ * Juick
+ * Copyright (C) 2008-2011, Ugnich Anton
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.juick.server;
+
+import com.juick.Message;
+import com.juick.User;
+import com.juick.server.helpers.PrivacyOpts;
+import org.springframework.dao.EmptyResultDataAccessException;
+import org.springframework.dao.IncorrectResultSizeDataAccessException;
+import org.springframework.jdbc.core.ConnectionCallback;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.jdbc.support.GeneratedKeyHolder;
+import org.springframework.jdbc.support.KeyHolder;
+
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.Statement;
+import java.sql.Types;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.logging.Logger;
+
+/**
+ *
+ * @author Ugnich Anton
+ */
+public class MessagesQueries {
+
+    private static final Logger LOGGER = Logger.getLogger(MessagesQueries.class.getName());
+
+    public static int createMessage(JdbcTemplate sql, int uid, String txt, String attachment, List<com.juick.Tag> tags) {
+        KeyHolder holder = new GeneratedKeyHolder();
+        sql.update(con -> {
+            PreparedStatement stmt = con.prepareStatement("INSERT INTO messages(user_id,attach) VALUES (?,?)",
+                    Statement.RETURN_GENERATED_KEYS);
+            stmt.setInt(1, uid);
+            if (attachment != null) {
+                stmt.setString(2, attachment);
+            } else {
+                stmt.setNull(2, Types.VARCHAR);
+            }
+            return stmt;
+        }, holder);
+
+        int mid = holder.getKey().intValue();
+
+
+        if (mid > 0) {
+
+            String tagsNames = "";
+            String tagsIDs = "";
+
+            for (int i = 0; i < tags.size(); i++) {
+                if (i > 0) {
+                    tagsNames += " ";
+                    tagsIDs += ",";
+                }
+                tagsNames += tags.get(i).Name;
+                tagsIDs += "(" + mid + "," + tags.get(i).TID + ")";
+            }
+            if (tags.size() > 0) {
+                sql.execute("INSERT INTO messages_tags(message_id,tag_id) VALUES " + tagsIDs);
+            }
+            final String finalTagsNames = tagsNames;
+            sql.update(con -> {
+                PreparedStatement stmt = con.prepareStatement("INSERT INTO messages_txt(message_id,tags,txt) " +
+                        "VALUES (?,?,?)", Statement.NO_GENERATED_KEYS);
+                stmt.setInt(1, mid);
+                if (finalTagsNames.isEmpty()) {
+                    stmt.setNull(2, Types.VARCHAR);
+                } else {
+                    stmt.setString(2, finalTagsNames);
+                }
+                stmt.setString(3, txt);
+                return stmt;
+            });
+        }
+
+        return mid;
+    }
+
+    public static int createReply(JdbcTemplate sql, int mid, int rid, int uid, String txt, String attachment) {
+        int ridnew = getReplyIDIncrement(sql, mid);
+
+        sql.update( con -> {
+            PreparedStatement stmt = con.prepareStatement("INSERT INTO replies(message_id,reply_id,user_id," +
+                    "replyto,attach,txt) VALUES (?,?,?,?,?,?)", Statement.NO_GENERATED_KEYS);
+            stmt.setInt(1, mid);
+            stmt.setInt(2, ridnew);
+            stmt.setInt(3, uid);
+            stmt.setInt(4, rid);
+            if (attachment != null) {
+                stmt.setString(5, attachment);
+            } else {
+                stmt.setNull(5, Types.VARCHAR);
+            }
+            stmt.setString(6, txt);
+            return stmt;
+        });
+
+        if (ridnew > 0) {
+            sql.update("UPDATE messages SET replies=replies+1 WHERE message_id=?", mid);
+        }
+
+        return ridnew;
+    }
+
+    public static int getReplyIDIncrement(JdbcTemplate sql, int mid) {
+        return sql.execute((ConnectionCallback<Integer>) conn -> {
+            conn.setAutoCommit(false);
+            try (PreparedStatement ps = conn.prepareStatement("UPDATE messages SET maxreplyid=maxreplyid+1 WHERE message_id=?")) {
+                ps.setInt(1, mid);
+                if (ps.executeUpdate() != 1) {
+                    throw new IncorrectResultSizeDataAccessException("Cannot find a message to update: " + mid, 1, 0);
+                }
+            }
+            try (PreparedStatement ps = conn.prepareStatement("SELECT maxreplyid FROM messages WHERE message_id=?")) {
+                ps.setInt(1, mid);
+                try (ResultSet resultSet = ps.executeQuery()) {
+                    if (resultSet.next()) {
+                        int rv = resultSet.getInt(1);
+                        conn.commit();
+                        return rv;
+                    } else {
+                        throw new IncorrectResultSizeDataAccessException("while getting getReplyIDIncrement, mid=" + mid, 1, 0);
+                    }
+                }
+            }
+        });
+
+    }
+
+    public static boolean recommendMessage(JdbcTemplate sql, int mid, int vuid) {
+        boolean res = sql.update("INSERT IGNORE INTO favorites(user_id,message_id) VALUES (" + vuid + "," + mid + ")") == 1;
+        if (res) {
+            sql.update("UPDATE messages SET likes=likes+1 WHERE message_id=?", mid);
+        }
+        return res;
+    }
+
+    public static boolean canViewThread(JdbcTemplate sql, int mid, int uid) {
+        PrivacyOpts privacyOpts;
+        try {
+            privacyOpts = sql.queryForObject("SELECT user_id,privacy FROM messages WHERE messages.message_id=?",
+                    (rs, rowNum) -> {
+                        PrivacyOpts res = new PrivacyOpts();
+                        res.setUid(rs.getInt(1));
+                        res.setPrivacy(rs.getInt(2));
+                        return res;
+                    }, mid);
+        } catch (EmptyResultDataAccessException e) {
+            return true;
+        }
+        return privacyOpts.getPrivacy() >= 0
+                || uid == privacyOpts.getUid()
+                || ((privacyOpts.getPrivacy() == -1 || privacyOpts.getPrivacy() == -2) && uid > 0
+                && UserQueries.isInWL(sql, privacyOpts.getUid(), uid));
+    }
+
+    public static boolean isReadOnly(JdbcTemplate sql, int mid) {
+        try {
+            return sql.queryForObject("SELECT readonly FROM messages WHERE message_id=?", new Object[]{mid}, Integer.class) == 1;
+        } catch (EmptyResultDataAccessException e) {
+            return false;
+        }
+    }
+
+    public static boolean isSubscribed(JdbcTemplate sql, int uid, int mid) {
+        try {
+            return sql.queryForObject("SELECT 1 FROM subscr_messages WHERE suser_id=? AND message_id=?", new Object[]{uid, mid}, Integer.class) == 1;
+        } catch (EmptyResultDataAccessException e) {
+            return false;
+        }
+    }
+
+    public static int getMessagePrivacy(JdbcTemplate sql, int mid) {
+        try {
+            return sql.queryForObject("SELECT privacy FROM messages WHERE message_id=?", new Object[]{mid}, Integer.class);
+        } catch (EmptyResultDataAccessException e) {
+            return -4;
+        }
+    }
+
+
+    public static com.juick.Message getMessage(JdbcTemplate sql, int mid) {
+        try {
+            return sql.queryForObject("SELECT messages.user_id,users.nick,"
+                            + "TIMESTAMPDIFF(MINUTE,messages.ts,NOW()),"
+                            + "messages.ts,"
+                            + "messages.readonly,messages.privacy,messages.replies,"
+                            + "messages.attach,messages.place_id,messages.lat,"
+                            + "messages.lon,messages.likes,messages.hidden,"
+                            + "txt.tags,txt.repliesby,txt.txt FROM messages "
+                            + "INNER JOIN users ON messages.user_id=users.id "
+                            + "INNER JOIN messages_txt AS txt "
+                            + "ON messages.message_id=txt.message_id "
+                            + "WHERE messages.message_id=?", new Object[]{mid},
+                    (rs, rowNum) -> {
+                        Message msg = new Message();
+                        msg.setMID(mid);
+                        msg.setUser(new User());
+                        msg.getUser().setUID(rs.getInt(1));
+                        msg.getUser().setUName(rs.getString(2));
+                        msg.TimeAgo = rs.getInt(3);
+                        msg.setDate(rs.getTimestamp(4));
+                        msg.ReadOnly = rs.getBoolean(5);
+                        msg.Privacy = rs.getInt(6);
+                        msg.FriendsOnly = msg.Privacy < 0;
+                        msg.Replies = rs.getInt(7);
+                        msg.AttachmentType = rs.getString(8);
+                        //if (rs.getInt(9) > 0) {
+                        //    msg.Place = PlacesQueries.getPlace(sql, rs.getInt(9));
+                        //}
+                        if (rs.getDouble(10) != 0) {
+                            msg.Place = new com.juick.Place();
+                            msg.Place.lat = rs.getDouble(10);
+                            msg.Place.lon = rs.getDouble(11);
+                        }
+                        msg.Likes = rs.getInt(12);
+                        msg.Hidden = rs.getBoolean(13);
+                        msg.parseTags(rs.getString(14));
+                        msg.RepliesBy = rs.getString(15);
+                        msg.setText(rs.getString(16));
+                        return msg;
+                    });
+        } catch (EmptyResultDataAccessException e) {
+            return null;
+        }
+    }
+
+    public static com.juick.Message getReply(JdbcTemplate sql, int mid, int rid) {
+        try {
+            return sql.queryForObject("SELECT replies.user_id,users.nick,"
+                            + "replies.replyto,replies.ts,"
+                            + "replies.attach,replies.txt FROM replies INNER JOIN users "
+                            + "ON replies.user_id=users.id "
+                            + "WHERE replies.message_id=? AND replies.reply_id=?",
+                    new Object[]{mid, rid}, (rs, num) -> {
+                        Message msg = new Message();
+                        msg.setMID(mid);
+                        msg.setRID(rid);
+                        msg.setUser(new User());
+                        msg.getUser().setUID(rs.getInt(1));
+                        msg.getUser().setUName(rs.getString(2));
+                        msg.ReplyTo = rs.getInt(3);
+                        msg.setDate(rs.getTimestamp(4));
+                        msg.AttachmentType = rs.getString(5);
+                        msg.setText(rs.getString(6));
+                        return msg;
+                    });
+        } catch (EmptyResultDataAccessException e) {
+            return null;
+        }
+    }
+
+    public static User getMessageAuthor(JdbcTemplate sql, int mid) {
+        try {
+            return sql.queryForObject("SELECT messages.user_id,users.nick "
+                            + "FROM messages INNER JOIN users "
+                            + "ON messages.user_id=users.id WHERE messages.message_id=?",
+                    new Object[]{mid}, (rs, num) -> {
+                        User res = new com.juick.User();
+                        res.setUID(rs.getInt(1));
+                        res.setUName(rs.getString(2));
+                        return res;
+                    });
+        } catch (EmptyResultDataAccessException e) {
+            return null;
+        }
+    }
+
+    public static List<com.juick.Tag> getMessageTags(JdbcTemplate sql, int mid) {
+        return sql.query("SELECT tags.tag_id,synonym_id,name,stat_messages FROM tags " +
+                        "INNER JOIN messages_tags ON (messages_tags.message_id=? AND messages_tags.tag_id=tags.tag_id)",
+                new Object[]{mid}, (rs, num) -> {
+                    com.juick.Tag t = new com.juick.Tag();
+                    t.TID = rs.getInt(1);
+                    t.SynonymID = rs.getInt(2);
+                    t.Name = rs.getString(3);
+                    t.UsageCnt = rs.getInt(4);
+                    return t;
+                });
+    }
+
+    public static List<Integer> getMessageTagsIDs(JdbcTemplate sql, int mid) {
+        return sql.queryForList("SELECT tag_id FROM messages_tags WHERE message_id=?", new Object[] {mid}, Integer.class);
+    }
+
+    public static List<String> getMessageRecommendations(JdbcTemplate sql, int mid) {
+        return sql.queryForList("SELECT users.nick FROM favorites INNER JOIN users " +
+                "ON (favorites.message_id=? AND favorites.user_id=users.id)",
+                new Object[] {mid}, String.class);
+    }
+
+    public static List<Integer> getAll(JdbcTemplate sql, int visitor_uid, int before) {
+        if (visitor_uid > 1) {
+            if (before > 0) {
+                return sql.queryForList("SELECT message_id FROM messages WHERE message_id<? AND hidden=0" +
+                                " AND (privacy>0 OR user_id=?) AND user_id NOT IN (SELECT bl_user_id FROM bl_users WHERE user_id=?)" +
+                                " AND user_id NOT IN (SELECT id from users WHERE banned=1) ORDER BY message_id DESC LIMIT 20",
+                        new Object[]{before, visitor_uid, visitor_uid}, Integer.class);
+            } else {
+                return sql.queryForList("SELECT message_id FROM messages WHERE hidden=0" +
+                                " AND (privacy>0 OR user_id=?)" +
+                                " AND user_id NOT IN (SELECT bl_user_id FROM bl_users WHERE user_id=?)" +
+                                " AND user_id NOT IN (SELECT id from users WHERE banned=1) ORDER BY message_id DESC LIMIT 20",
+                        new Object[]{visitor_uid, visitor_uid}, Integer.class);
+            }
+        } else {
+            if (before > 0) {
+                return sql.queryForList("SELECT message_id FROM messages WHERE message_id<?" +
+                                " AND hidden=0 AND privacy>0 AND user_id NOT IN (SELECT id from users WHERE banned=1) " +
+                                " ORDER BY message_id DESC LIMIT 20",
+                        new Object[]{before}, Integer.class);
+            } else {
+                return sql.queryForList("SELECT message_id FROM messages WHERE hidden=0 AND privacy>0" +
+                                " AND user_id NOT IN (SELECT id from users WHERE banned=1) ORDER BY message_id DESC LIMIT 20",
+                        Integer.class);
+            }
+        }
+    }
+
+    public static List<Integer> getTag(JdbcTemplate sql, int tid, int visitor_uid, int before, int cnt) {
+        if (before > 0) {
+            return sql.queryForList("SELECT message_id FROM (tags INNER JOIN messages_tags " +
+                            "ON ((tags.synonym_id=? OR tags.tag_id=?) AND tags.tag_id=messages_tags.tag_id)) " +
+                            "INNER JOIN messages USING(message_id) WHERE messages.message_id<? " +
+                            "AND (messages.privacy>0 OR messages.user_id=?) ORDER BY message_id DESC LIMIT ?",
+                    new Object[]{tid, tid, before, visitor_uid, cnt}, Integer.class);
+        } else {
+            return sql.queryForList("SELECT message_id FROM (tags INNER JOIN messages_tags " +
+                            "ON ((tags.synonym_id=? OR tags.tag_id=?) AND tags.tag_id=messages_tags.tag_id)) " +
+                            "INNER JOIN messages USING(message_id) WHERE messages.privacy>0 OR messages.user_id=? " +
+                            "ORDER BY message_id DESC LIMIT ?",
+                    new Object[]{tid, tid, visitor_uid, cnt}, Integer.class);
+        }
+    }
+
+    public static List<Integer> getTags(JdbcTemplate sql, String tids, int visitor_uid, int before, int cnt) {
+        if (before > 0) {
+            return sql.queryForList("SELECT messages.message_id FROM messages_tags " +
+                    "INNER JOIN messages USING(message_id) WHERE messages_tags.tag_id IN (" + tids + ") " +
+                    "AND messages.message_id<? AND (messages.privacy>0 OR messages.user_id=?) " +
+                    "ORDER BY messages.message_id DESC LIMIT ?", new Object[]{before, visitor_uid, cnt}, Integer.class);
+        } else {
+            return sql.queryForList("SELECT messages.message_id FROM messages_tags " +
+                    "INNER JOIN messages USING(message_id) WHERE messages_tags.tag_id IN (" + tids + ") " +
+                    "AND (messages.privacy>0 OR messages.user_id=?) " +
+                    "ORDER BY messages.message_id DESC LIMIT ?", new Object[]{visitor_uid, cnt}, Integer.class);
+        }
+    }
+
+    public static List<Integer> getPlace(JdbcTemplate sql, int place_id, int visitor_uid, int before) {
+        if (before > 0) {
+            return sql.queryForList("SELECT message_id FROM messages WHERE place_id=? AND message_id<? " +
+                            "AND (privacy>0 OR user_id=?) ORDER BY message_id DESC LIMIT 20",
+                    new Object[]{place_id, before, visitor_uid}, Integer.class);
+        } else {
+            return sql.queryForList("SELECT message_id FROM messages WHERE place_id=? AND (privacy>0 OR user_id=?) " +
+                    "ORDER BY message_id DESC LIMIT 20", new Object[]{place_id, visitor_uid}, Integer.class);
+        }
+    }
+
+    public static List<Integer> getMyFeed(JdbcTemplate sql, int uid, int before) {
+        List<Integer> mids;
+        if (before > 0) {
+            mids = sql.queryForList("SELECT message_id FROM messages " +
+                            "INNER JOIN subscr_users ON (subscr_users.suser_id=? AND subscr_users.user_id=messages.user_id) " +
+                            "WHERE message_id<? AND (privacy>=0 OR (privacy>=-2 AND privacy<=-1 AND messages.user_id " +
+                            "IN (SELECT user_id FROM wl_users WHERE wl_user_id=?))) ORDER BY message_id DESC LIMIT 20",
+                    Integer.class, uid, before, uid);
+        } else {
+            mids = sql.queryForList("SELECT message_id FROM messages " +
+                            "INNER JOIN subscr_users ON (subscr_users.suser_id=? " +
+                            "AND subscr_users.user_id=messages.user_id) " +
+                            "WHERE (privacy>=0 OR (privacy>=-2 AND privacy<=-1 AND messages.user_id " +
+                            "IN (SELECT user_id FROM wl_users WHERE wl_user_id=?))) ORDER BY message_id DESC LIMIT 20",
+                    Integer.class, uid, uid);
+        }
+
+
+        if (before > 0) {
+            mids.addAll(sql.queryForList("SELECT message_id FROM messages " +
+                            "WHERE user_id=? AND message_id<? ORDER BY message_id DESC LIMIT 20", Integer.class,
+                    uid, before));
+        } else {
+            mids.addAll(sql.queryForList("SELECT message_id FROM messages " +
+                            "WHERE user_id=? ORDER BY message_id DESC LIMIT 20", Integer.class, uid));
+        }
+
+        Collections.sort(mids, Collections.reverseOrder());
+        int remove = mids.size() - 20;
+        for (int i = 0; i < remove; i++) {
+            mids.remove(20);
+        }
+
+        return mids;
+    }
+
+    public static List<Integer> getPrivate(JdbcTemplate sql, int uid, int before) {
+
+        if (before > 0) {
+            return sql.queryForList("SELECT message_id FROM messages WHERE user_id=? AND privacy<0 AND message_id<? " +
+                    "ORDER BY message_id DESC LIMIT 20", new Object[]{uid, before}, Integer.class);
+        } else {
+            return sql.queryForList("SELECT message_id FROM messages WHERE user_id=? AND privacy<0 " +
+                    "ORDER BY message_id DESC LIMIT 20", new Object[]{uid}, Integer.class);
+        }
+    }
+
+    public static List<Integer> getDiscussions(JdbcTemplate sql, int uid, int before) {
+        if (before > 0) {
+            return sql.queryForList("SELECT message_id FROM subscr_messages WHERE suser_id=? AND message_id<? " +
+                    "ORDER BY message_id DESC LIMIT 20", Integer.class, uid, before);
+        } else {
+            return sql.queryForList("SELECT message_id FROM subscr_messages WHERE suser_id=? " +
+                    "ORDER BY message_id DESC LIMIT 20", Integer.class, uid);
+        }
+    }
+
+    public static List<Integer> getRecommended(JdbcTemplate sql, int uid, int before) {
+        if (before > 0) {
+            return sql.queryForList("SELECT message_id FROM favorites WHERE user_id " +
+                    "IN (SELECT user_id FROM subscr_users WHERE suser_id=?) AND message_id<? " +
+                    "ORDER BY message_id DESC LIMIT 20", Integer.class, uid, before);
+        } else {
+            return sql.queryForList("SELECT message_id FROM favorites WHERE user_id " +
+                    "IN (SELECT user_id FROM subscr_users WHERE suser_id=?) " +
+                    "ORDER BY message_id DESC LIMIT 20", Integer.class, uid);
+        }
+    }
+
+    public static List<Integer> getPopular(JdbcTemplate sql, int visitor_uid, int before) {
+
+            if (before > 0) {
+                return sql.queryForList("SELECT message_id FROM messages WHERE message_id<? AND privacy>0 " +
+                        "AND popular>0 AND user_id NOT IN (SELECT bl_user_id FROM bl_users WHERE user_id=?) " +
+                        "ORDER BY message_id DESC LIMIT 20", Integer.class, before, visitor_uid);
+            } else {
+                return sql.queryForList("SELECT message_id FROM messages WHERE privacy>0 " +
+                        "AND popular>0 AND user_id NOT IN (SELECT bl_user_id FROM bl_users WHERE user_id=?) " +
+                        "ORDER BY message_id DESC LIMIT 20", Integer.class, visitor_uid);
+            }
+    }
+
+    public static List<Integer> getPhotos(JdbcTemplate sql, int visitor_uid, int before) {
+        if (before > 0) {
+            return sql.queryForList("SELECT message_id FROM messages WHERE message_id<? AND (privacy>0 OR user_id=?) " +
+                    "AND attach IS NOT NULL AND user_id NOT IN (SELECT id from users WHERE banned=1) " +
+                    "AND user_id NOT IN (SELECT bl_user_id FROM bl_users WHERE user_id=?) " +
+                    "ORDER BY message_id DESC LIMIT 20", Integer.class, before, visitor_uid, visitor_uid);
+        } else {
+            return sql.queryForList("SELECT message_id FROM messages WHERE (privacy>0 OR user_id=?) " +
+                    "AND attach IS NOT NULL AND user_id NOT IN (SELECT id from users WHERE banned=1) " +
+                    "AND user_id NOT IN (SELECT bl_user_id FROM bl_users WHERE user_id=?) " +
+                    "ORDER BY message_id DESC LIMIT 20", Integer.class, visitor_uid, visitor_uid);
+        }
+    }
+
+    public static List<Integer> getSearch(JdbcTemplate sql, JdbcTemplate sqlSearch, String search, int before) {
+        List<Integer> mids;
+
+        if (before > 0) {
+            mids = sqlSearch.queryForList("SELECT id AS message_id FROM messages WHERE MATCH(?) AND id<? " +
+                    "ORDER BY id DESC LIMIT 25", new Object[]{search, before}, Integer.class);
+        } else {
+            mids = sqlSearch.queryForList("SELECT id AS message_id FROM messages WHERE MATCH(?) " +
+                    "ORDER BY id DESC LIMIT 25", new Object[]{search}, Integer.class);
+        }
+        if (mids.size() > 0) {
+            return sql.queryForList("SELECT message_id FROM messages WHERE message_id " +
+                    "IN (" + Utils.convertArrayInt2String(mids) + ") AND privacy>0 ORDER BY message_id DESC LIMIT 20",
+                    Integer.class);
+        }
+        return mids;
+    }
+
+    public static List<Integer> getUserBlog(JdbcTemplate sql, int UID, int privacy, int before) {
+        if (before > 0) {
+            return sql.queryForList("SELECT message_id FROM messages WHERE user_id=? AND message_id<? AND privacy>=" +
+                    privacy + " ORDER BY message_id DESC LIMIT 20", new Object[]{UID, before}, Integer.class);
+        } else {
+            return sql.queryForList("SELECT message_id FROM messages WHERE user_id=? AND privacy>=" + privacy +
+                    " ORDER BY message_id DESC LIMIT 20", new Object[]{UID}, Integer.class);
+        }
+    }
+
+    public static List<Integer> getUserTag(JdbcTemplate sql, int UID, int TID, int privacy, int before) {
+        if (before > 0) {
+            return sql.queryForList("SELECT messages.message_id FROM messages_tags INNER JOIN messages " +
+                    "USING(message_id) WHERE messages.user_id=? AND messages_tags.tag_id=? " +
+                    "AND messages.message_id<? AND messages.privacy>=" + privacy +
+                    " ORDER BY messages.message_id DESC LIMIT 20",
+                    new Object[] {UID, TID, before}, Integer.class);
+        } else {
+            return sql.queryForList("SELECT messages.message_id FROM messages_tags INNER JOIN messages " +
+                    "USING(message_id) WHERE messages.user_id=? AND messages_tags.tag_id=? " +
+                    "AND messages.privacy>=" + privacy + " ORDER BY messages.message_id DESC LIMIT 20",
+                    new Object[]{UID, TID}, Integer.class);
+        }
+    }
+
+    public static List<Integer> getUserRecommendations(JdbcTemplate sql, int UID, int before) {
+        if (before > 0) {
+            return sql.queryForList("SELECT message_id FROM favorites "
+                    + "WHERE user_id=? AND message_id<? "
+                    + "ORDER BY message_id DESC LIMIT 20", Integer.class,
+                    new Object[]{UID, before});
+        } else {
+            return sql.queryForList("SELECT message_id FROM favorites "
+                    + "WHERE user_id=? ORDER BY message_id DESC LIMIT 20",
+                    Integer.class, new Object[]{UID});
+
+        }
+    }
+
+    public static List<Integer> getUserPhotos(JdbcTemplate sql, int UID, int privacy, int before) {
+        if (before > 0) {
+            return sql.queryForList("SELECT message_id FROM messages WHERE user_id=? AND message_id<? AND privacy>=" +
+                    privacy + " AND attach IS NOT NULL ORDER BY message_id DESC LIMIT 20",
+                    new Object[] {UID, before}, Integer.class);
+        } else {
+            return sql.queryForList("SELECT message_id FROM messages WHERE user_id=? AND privacy>=" + privacy +
+                    " AND attach IS NOT NULL ORDER BY message_id DESC LIMIT 20",
+                    new Object[] {UID}, Integer.class);
+        }
+    }
+
+    public static List<Integer> getUserSearch(JdbcTemplate sql, JdbcTemplate sqlSearch, int UID, String search, int privacy, int before) {
+        List<Integer> mids;
+
+
+        if (before > 0) {
+            mids = sqlSearch.queryForList("SELECT id AS message_id FROM messages WHERE user_id=? AND MATCH(?) AND id<? " +
+                    "ORDER BY id DESC LIMIT 20", new Object[] {UID, search, before}, Integer.class);
+        } else {
+            mids = sqlSearch.queryForList("SELECT id AS message_id FROM messages WHERE user_id=? AND MATCH(?) " +
+                    "ORDER BY id DESC LIMIT 20", new Object[] {UID, search}, Integer.class);
+        }
+
+        if (mids.size() > 0) {
+           return sql.queryForList("SELECT message_id FROM messages WHERE message_id IN (" +
+                   Utils.convertArrayInt2String(mids) + ") AND privacy>=" + privacy + " ORDER BY message_id DESC",
+                   Integer.class);
+        }
+        return mids;
+    }
+
+    public static List<com.juick.Message> getMessages(JdbcTemplate sql, List<Integer> mids) {
+        List<com.juick.Message> msgs = new ArrayList<>(20);
+        
+        return sql.query("SELECT messages.message_id,messages.user_id,users.nick,"
+                + "messages_txt.tags,messages.readonly,messages.privacy,messages_txt.txt,"
+                + "TIMESTAMPDIFF(MINUTE,messages.ts,NOW()),"
+                + "messages.ts,messages.replies,"
+                + "messages_txt.repliesby,messages.attach,messages.lat,"
+                + "messages.lon,messages.likes "
+                + "FROM (messages INNER JOIN messages_txt "
+                + "ON messages.message_id=messages_txt.message_id) "
+                + "INNER JOIN users ON messages.user_id=users.id "
+                + "WHERE messages.message_id "
+                + "IN (" + Utils.convertArrayInt2String(mids) + ") "
+                + "ORDER BY messages.message_id DESC", (rs, rowNum) -> {
+                    com.juick.Message msg = new com.juick.Message();
+                    msg.setUser(new User());
+                    
+                    msg.setMID(rs.getInt(1));
+                    msg.getUser().setUID(rs.getInt(2));
+                    msg.getUser().setUName(rs.getString(3));
+                    if (rs.getString(4) != null) {
+                        msg.parseTags(rs.getString(4));
+                    }
+                    msg.ReadOnly = rs.getInt(5) == 1;
+                    msg.Privacy = rs.getInt(6);
+                    msg.FriendsOnly = msg.Privacy < 0;
+                    msg.setText(rs.getString(7));
+                    msg.TimeAgo = rs.getInt(8);
+                    msg.setDate(rs.getTimestamp(9));
+                    msg.Replies = rs.getInt(10);
+                    msg.RepliesBy = rs.getString(11);
+                    msg.AttachmentType = rs.getString(12);
+                    if (rs.getDouble(13) != 0) {
+                        msg.Place = new com.juick.Place();
+                        msg.Place.lat = rs.getDouble(13);
+                        msg.Place.lon = rs.getDouble(14);
+                    }
+                    msg.Likes = rs.getInt(15);
+                    return msg;
+        });
+    }
+
+    public static List<com.juick.Message> getReplies(JdbcTemplate sql, int mid) {
+        return sql.query("SELECT replies.reply_id,replies.replyto,replies.user_id,users.nick,users.banned,replies.txt," +
+                        "TIMESTAMPDIFF(MINUTE,replies.ts,NOW()),replies.ts,replies.attach FROM replies INNER JOIN users " +
+                        "ON replies.user_id=users.id WHERE replies.message_id=? ORDER BY replies.reply_id ASC",
+                new Object[]{mid}, (rs, num) -> {
+                    com.juick.Message msg = new com.juick.Message();
+                    msg.setMID(mid);
+                    msg.setRID(rs.getInt(1));
+                    msg.ReplyTo = rs.getInt(2);
+                    msg.setUser(new User());
+                    msg.getUser().setUID(rs.getInt(3));
+                    msg.getUser().setUName(rs.getString(4));
+                    msg.getUser().Banned = rs.getBoolean(5);
+                    msg.setText(rs.getString(6));
+                    msg.TimeAgo = rs.getInt(7);
+                    msg.setDate(rs.getTimestamp(8));
+                    msg.AttachmentType = rs.getString(9);
+                    return msg;
+                });
+    }
+
+    public static boolean setMessagePopular(JdbcTemplate sql, int mid, int popular) {
+        boolean ret;
+        switch (popular) {
+            case -2:
+                ret = sql.update("UPDATE messages SET hidden=1 WHERE message_id=?", mid) > 0;
+                break;
+            case -1:
+                ret = sql.update("UPDATE messages SET popular=0 WHERE message_id=?", mid) > 0;
+                break;
+            default:
+                ret = sql.update("UPDATE messages SET popular=? WHERE message_id=?", popular, mid) > 0;
+                break;
+        }
+        if (popular == -1) {
+            ret = sql.update("INSERT INTO top_ignore_messages VALUES (?)", mid) > 0;
+        }
+        return ret;
+    }
+
+    public static boolean setMessagePrivacy(JdbcTemplate sql, int mid) {
+        return sql.update("UPDATE messages SET privacy=1 WHERE message_id=?", 
+                mid) > 0;            
+    }
+    public static boolean deleteMessage(JdbcTemplate sql, int uid, int mid) {
+        if (sql.update("DELETE FROM messages WHERE message_id=? AND user_id=?", mid, uid) > 0) {
+            sql.update("DELETE FROM messages_txt WHERE message_id=?", mid);
+            sql.update("DELETE FROM replies WHERE message_id=?", mid);
+            sql.update("DELETE FROM subscr_messages WHERE message_id=?", mid);
+            sql.update("DELETE FROM messages_tags WHERE message_id=?", mid);
+            return true;
+        }
+        return false;
+    }
+
+}
diff --git a/src/main/java/com/juick/server/PMQueries.java b/src/main/java/com/juick/server/PMQueries.java
new file mode 100644
index 00000000..74d5df3e
--- /dev/null
+++ b/src/main/java/com/juick/server/PMQueries.java
@@ -0,0 +1,145 @@
+/*
+ * Juick
+ * Copyright (C) 2008-2011, Ugnich Anton
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.juick.server;
+
+import com.juick.User;
+import org.springframework.dao.EmptyResultDataAccessException;
+import org.springframework.jdbc.core.JdbcTemplate;
+
+import java.util.List;
+
+/**
+ *
+ * @author Ugnich Anton
+ */
+public class PMQueries {
+
+    public static boolean createPM(JdbcTemplate sql, int uid_from, int uid_to, String body) {
+        boolean ret = sql.update("INSERT INTO pm(user_id,user_id_to,txt) VALUES (?,?,?)",
+                uid_from, uid_to, body) > 0;
+
+        if (ret) {
+            sql.update("INSERT INTO pm_streams(user_id,user_id_to,lastmessage,unread) "
+                    + "VALUES (?,?,NOW(),1) "
+                    + "ON DUPLICATE KEY UPDATE lastmessage=NOW(),unread=unread+1",
+                    uid_from, uid_to);
+        }
+        return ret;
+    }
+
+    public static boolean addPMinRoster(JdbcTemplate sql, int uid, String jid) {
+        return sql.update("INSERT INTO pm_inroster(user_id,jid) VALUES (?,?)",
+                uid, jid) > 0;
+    }
+
+    public static boolean removePMinRoster(JdbcTemplate sql, int uid, String jid) {
+        return sql.update("DELETE FROM pm_inroster WHERE user_id=? AND jid=?", uid, jid) > 0;
+    }
+
+    public static boolean havePMinRoster(JdbcTemplate sql, int uid, String jid) {
+        List<Integer> res = sql.queryForList("SELECT 1 FROM pm_inroster "
+                + "WHERE user_id=? AND jid=?", Integer.class,
+                uid, jid);
+            return res.size() > 0;        
+    }
+
+    public static String getLastView(JdbcTemplate sql, int uid_from, int uid_to) {
+        try {
+            return sql.queryForObject("SELECT lastview FROM pm_streams WHERE user_id=? AND user_id_to=?", String.class,
+                    uid_from, uid_to);
+        } catch (EmptyResultDataAccessException e) {
+            return null;
+        }
+    }
+
+    public static List<User> getPMLastConversationsUsers(JdbcTemplate sql, int uid, int cnt) {
+        List<User> qusers = sql.query("SELECT user_id,unread FROM pm_streams "
+                + "WHERE user_id_to=? "
+                + "ORDER BY unread DESC, lastmessage DESC LIMIT " + cnt, (rs, rowNum) -> {
+            com.juick.User u = new com.juick.User();
+            u.setUID(rs.getInt(1));
+            u.MessagesCount = rs.getInt(2);
+            return u;
+        }, uid);
+        if (!qusers.isEmpty()) {
+            UserQueries.fillUsersByID(sql, qusers);
+        }
+
+        return qusers;
+    }
+
+    public static boolean haveUserInArray(List<com.juick.User> arr, int uid) {
+        for (User user : arr) {
+            if (user.getUID() == uid) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    public static List<com.juick.Message> getPMMessages(JdbcTemplate sql, int uid, int uid_to) {
+        List<com.juick.Message> msgs = sql.query("SELECT user_id,txt,ts FROM pm "
+                + "WHERE (user_id=? AND user_id_to=?) "
+                + "OR (user_id_to=? AND user_id=?) ORDER BY ts DESC LIMIT 20",
+                (rs, rowNum) -> {
+                    com.juick.Message msg = new com.juick.Message();
+                    int uuid = rs.getInt(1);
+                    msg.setUser(new User());
+                    msg.getUser().setUID(uuid);
+                    msg.setText(rs.getString(2));
+                    msg.setDate(rs.getTimestamp(3));
+                    return msg;
+                }, uid, uid_to, uid, uid_to);
+
+        sql.update("UPDATE pm_streams SET lastview=NOW(),unread=0 "
+                + "WHERE user_id_to=? AND user_id=?", uid, uid_to);
+
+        return msgs;
+    }
+
+    public static List<com.juick.Message> getLastPMInbox(JdbcTemplate sql, int uid) {
+        return sql.query("SELECT pm.user_id,users.nick,pm.txt,TIMESTAMPDIFF(MINUTE,pm.ts,NOW()),pm.ts " +
+                        "FROM pm INNER JOIN users ON pm.user_id=users.id WHERE pm.user_id_to=? ORDER BY pm.ts DESC LIMIT 20",
+                (rs, num) -> {
+                    com.juick.Message msg = new com.juick.Message();
+                    msg.setUser(new User());
+                    msg.getUser().setUID(rs.getInt(1));
+                    msg.getUser().setUName(rs.getString(2));
+                    msg.setText(rs.getString(3));
+                    msg.TimeAgo = rs.getInt(4);
+                    msg.setDate(rs.getTimestamp(5));
+                    return msg;
+                }, uid);
+    }
+
+    public static List<com.juick.Message> getLastPMSent(JdbcTemplate sql, int uid) {
+        return sql.query("SELECT pm.user_id_to,users.nick,pm.txt,TIMESTAMPDIFF(MINUTE,pm.ts,NOW())," +
+                        "pm.ts FROM pm INNER JOIN users ON pm.user_id_to=users.id " +
+                        "WHERE pm.user_id=? ORDER BY pm.ts DESC LIMIT 20",
+                (rs, num) -> {
+                    com.juick.Message msg = new com.juick.Message();
+                    msg.setUser(new User());
+                    msg.getUser().setUID(rs.getInt(1));
+                    msg.getUser().setUName(rs.getString(2));
+                    msg.setText(rs.getString(3));
+                    msg.TimeAgo = rs.getInt(4);
+                    msg.setDate(rs.getTimestamp(5));
+                    return msg;
+                }, uid);
+    }
+}
diff --git a/src/main/java/com/juick/server/PushQueries.java b/src/main/java/com/juick/server/PushQueries.java
new file mode 100644
index 00000000..54528993
--- /dev/null
+++ b/src/main/java/com/juick/server/PushQueries.java
@@ -0,0 +1,74 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.juick.server;
+
+import org.springframework.dao.EmptyResultDataAccessException;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.util.StringUtils;
+
+import java.util.List;
+import java.util.Optional;
+
+/**
+ *
+ * @author ugnich
+ */
+public class PushQueries {
+
+    public static Optional<String> getAndroidRegID(JdbcTemplate sql, int uid) {
+        try {
+            return Optional.of(sql.queryForObject("SELECT regid FROM android WHERE user_id=?", String.class, uid));
+        } catch (EmptyResultDataAccessException e) {
+            return Optional.empty();
+        }
+
+    }
+
+    public static  List<String> getAndroidSubscribers(JdbcTemplate sql, int uid) {
+        return sql.queryForList("SELECT regid FROM android INNER JOIN subscr_users " +
+                "ON (subscr_users.user_id=? AND android.user_id=subscr_users.suser_id)", String.class, uid);
+    }
+
+    public static  List<String> getAndroidTokens(JdbcTemplate sql, List<Integer> uids) {
+        return sql.queryForList("SELECT regid FROM android INNER JOIN users " +
+                "ON (users.id=android.user_id) WHERE users.id IN (" + StringUtils.collectionToCommaDelimitedString(uids) + ")", String.class);
+    }
+
+    public static  Optional<String> getWinPhoneURL(JdbcTemplate sql, int uid) {
+        try {
+            return Optional.of(sql.queryForObject("SELECT url FROM winphone WHERE user_id=?", String.class, uid));
+        } catch (EmptyResultDataAccessException e) {
+            return Optional.empty();
+        }
+    }
+
+    public static  List<String> getWinPhoneSubscribers(JdbcTemplate sql, int uid) {
+        return sql.queryForList("SELECT url FROM winphone INNER JOIN subscr_users " +
+                "ON (subscr_users.user_id=? AND winphone.user_id=subscr_users.suser_id)", String.class, uid);
+    }
+
+    public static  List<String> getWindowsTokens(JdbcTemplate sql, List<Integer> uids) {
+        return sql.queryForList("SELECT url FROM winphone INNER JOIN users " +
+                "ON (users.id=winphone.user_id) WHERE users.id IN (" + StringUtils.collectionToCommaDelimitedString(uids) + ")", String.class);
+    }
+
+    public static  Optional<String> getAPNSToken(JdbcTemplate sql, int uid) {
+        try {
+            return Optional.of(sql.queryForObject("SELECT token from ios WHERE user_id=?", String.class, uid));
+        } catch (EmptyResultDataAccessException e) {
+            return Optional.empty();
+        }
+    }
+
+    public static  List<String> getAPNSSubscribers(JdbcTemplate sql, int uid) {
+        return sql.queryForList("SELECT token FROM ios INNER JOIN subscr_users " +
+                "ON (subscr_users.user_id=? AND ios.user_id=subscr_users.suser_id)", String.class, uid);
+    }
+    public static  List<String> getAPNSTokens(JdbcTemplate sql, List<Integer> uids) {
+        return sql.queryForList("SELECT token FROM ios INNER JOIN users " +
+                "ON (users.id=ios.user_id) WHERE users.id IN (" + StringUtils.collectionToCommaDelimitedString(uids) + ")", String.class);
+    }
+
+}
diff --git a/src/main/java/com/juick/server/SQLHelpers.java b/src/main/java/com/juick/server/SQLHelpers.java
new file mode 100644
index 00000000..13ebe98a
--- /dev/null
+++ b/src/main/java/com/juick/server/SQLHelpers.java
@@ -0,0 +1,168 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.juick.server;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ *
+ * @author ugnich
+ */
+public class SQLHelpers {
+
+    private static final Logger logger = Logger.getLogger(SQLHelpers.class.getName());
+
+    public static int execute(Connection sql, String query) {
+        int ret = -1;
+        PreparedStatement stmt = null;
+        try {
+            stmt = sql.prepareStatement(query);
+            ret = stmt.executeUpdate();
+        } catch (SQLException e) {
+            logger.log(Level.SEVERE, "sql exception", e);
+        } finally {
+            Utils.finishSQL(null, stmt);
+        }
+        return ret;
+    }
+
+    public static int executeInt(Connection sql, String query, int param) {
+        int ret = -1;
+        PreparedStatement stmt = null;
+        try {
+            stmt = sql.prepareStatement(query);
+            stmt.setInt(1, param);
+            ret = stmt.executeUpdate();
+        } catch (SQLException e) {
+            logger.log(Level.SEVERE, "sql exception", e);
+        } finally {
+            Utils.finishSQL(null, stmt);
+        }
+        return ret;
+    }
+
+    public static int getInt(Connection sql, String query, int defvalue) {
+        int ret = defvalue;
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            stmt = sql.prepareStatement(query);
+            rs = stmt.executeQuery();
+            if (rs.first()) {
+                ret = rs.getInt(1);
+            }
+        } catch (SQLException e) {
+            logger.log(Level.SEVERE, "sql exception", e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+        return ret;
+    }
+
+    public static int getInt(Connection sql, String query, int param, int defvalue) {
+        int ret = defvalue;
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            stmt = sql.prepareStatement(query);
+            stmt.setInt(1, param);
+            rs = stmt.executeQuery();
+            if (rs.first()) {
+                ret = rs.getInt(1);
+            }
+        } catch (SQLException e) {
+            logger.log(Level.SEVERE, "sql exception", e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+        return ret;
+    }
+
+    public static int getInt(Connection sql, String query, String param, int defvalue) {
+        int ret = defvalue;
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            stmt = sql.prepareStatement(query);
+            stmt.setString(1, param);
+            rs = stmt.executeQuery();
+            if (rs.first()) {
+                ret = rs.getInt(1);
+            }
+        } catch (SQLException e) {
+            logger.log(Level.SEVERE, "sql exception", e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+        return ret;
+    }
+
+    public static String getString(Connection sql, String query, int param) {
+        String ret = null;
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            stmt = sql.prepareStatement(query);
+            stmt.setInt(1, param);
+            rs = stmt.executeQuery();
+            if (rs.first()) {
+                ret = rs.getString(1);
+            }
+        } catch (SQLException e) {
+            logger.log(Level.SEVERE, "sql exception", e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+        return ret;
+    }
+
+    public static String getString(Connection sql, String query, String param) {
+        String ret = null;
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            stmt = sql.prepareStatement(query);
+            stmt.setString(1, param);
+            rs = stmt.executeQuery();
+            if (rs.first()) {
+                ret = rs.getString(1);
+            }
+        } catch (SQLException e) {
+            logger.log(Level.SEVERE, "sql exception", e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+        return ret;
+    }
+
+    public static List<Integer> getArrayInteger(Connection sql, String query, int param) {
+        List<Integer> ret = new ArrayList<>();
+
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            stmt = sql.prepareStatement(query);
+            stmt.setInt(1, param);
+            rs = stmt.executeQuery();
+            rs.beforeFirst();
+            while (rs.next()) {
+                ret.add(rs.getInt(1));
+            }
+        } catch (SQLException e) {
+            logger.log(Level.SEVERE, "sql exception", e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+
+        return ret;
+    }
+}
diff --git a/src/main/java/com/juick/server/ShowQueries.java b/src/main/java/com/juick/server/ShowQueries.java
new file mode 100644
index 00000000..3ddff412
--- /dev/null
+++ b/src/main/java/com/juick/server/ShowQueries.java
@@ -0,0 +1,32 @@
+package com.juick.server;
+
+import com.juick.User;
+
+import java.util.List;
+import org.springframework.jdbc.core.JdbcTemplate;
+
+/**
+ * Created by vt on 10/01/16.
+ */
+public class ShowQueries {
+
+    public static List<String> getRecommendedUsers(JdbcTemplate sql, User forUser) {
+        return sql.queryForList("SELECT users.nick FROM subscr_users INNER JOIN users " +
+                    "ON subscr_users.user_id=users.id " +
+                    "WHERE subscr_users.user_id NOT IN (SELECT user_id FROM subscr_users WHERE suser_id=?) " +
+                    "AND subscr_users.suser_id IN (SELECT user_id FROM subscr_users WHERE suser_id=?) " +
+                    "AND subscr_users.user_id NOT IN (SELECT bl_user_id FROM bl_users WHERE user_id=?) " +
+                    "AND subscr_users.user_id!=? AND users.lastmessage>UNIX_TIMESTAMP()-259200 " +
+                    "GROUP BY subscr_users.user_id ORDER BY count(*) DESC LIMIT 10", 
+                String.class, new Object[] {forUser.getUID(), forUser.getUID(), forUser.getUID(), forUser.getUID()});
+    }
+
+    public static List<String> getTopUsers(JdbcTemplate sql) {
+        return sql.queryForList("SELECT users.nick,COUNT(subscr_users.suser_id) AS cnt " +
+                    "FROM (subscr_users INNER JOIN users ON subscr_users.user_id=users.id) " +
+                    "INNER JOIN useroptions ON users.id=useroptions.user_id " +
+                    "WHERE useroptions.privacy_view>0 AND users.lastmessage>UNIX_TIMESTAMP()-259200 " +
+                    "AND users.id!=2 GROUP BY subscr_users.user_id ORDER BY cnt DESC LIMIT 10",
+                String.class);            
+    }
+}
diff --git a/src/main/java/com/juick/server/SubscriptionsQueries.java b/src/main/java/com/juick/server/SubscriptionsQueries.java
new file mode 100644
index 00000000..0cf3f169
--- /dev/null
+++ b/src/main/java/com/juick/server/SubscriptionsQueries.java
@@ -0,0 +1,104 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.juick.server;
+
+import com.juick.Tag;
+import com.juick.User;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.util.StringUtils;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.logging.Logger;
+import java.util.stream.Collectors;
+
+/**
+ *
+ * @author ugnich
+ */
+public class SubscriptionsQueries {
+
+    private static final Logger logger = Logger.getLogger(SubscriptionsQueries.class.getName());
+
+    public static List<String> getJIDSubscribedToUser(JdbcTemplate sql, int uid, boolean friendsonly) {
+        if (friendsonly == false) {
+            return sql.queryForList("SELECT jids.jid FROM subscr_users INNER JOIN jids " +
+                            "ON (subscr_users.user_id=? AND subscr_users.suser_id=jids.user_id) WHERE jids.active=1",
+                    String.class, uid);
+        } else {
+            return sql.queryForList("SELECT jids.jid FROM subscr_users INNER JOIN jids " +
+                    "ON (subscr_users.user_id=? AND subscr_users.suser_id=jids.user_id) WHERE jids.active=1 " +
+                    "AND jids.user_id IN (SELECT wl_user_id FROM wl_users WHERE user_id=?)", String.class, uid, uid);
+        }
+    }
+
+    public static List<User> getSubscribedUsers(JdbcTemplate sql, int uid, int mid) {
+        List<User> userids = UserQueries.getUserReaders(sql, uid);
+        Set<Integer> set = new HashSet<>();
+        set.addAll(userids.stream().map(User::getUID).collect(Collectors.toList()));
+        List<Integer> tags = MessagesQueries.getMessageTagsIDs(sql, mid);
+        if (tags.size() > 0) {
+            List<Integer> tagUsers = sql.queryForList("SELECT suser_id FROM subscr_tags " +
+                    "WHERE tag_id IN (" + StringUtils.arrayToCommaDelimitedString(tags.toArray()) + ") AND suser_id!=" + uid, Integer.class);
+            set.addAll(tagUsers);
+        }
+        return UserQueries.getUsersByID(sql, new ArrayList<>(set));
+    }
+
+    public static List<User> getUsersSubscribedToComments(JdbcTemplate sql, int mid, int ignore_uid) {
+        List<Integer> userids = sql.queryForList("SELECT suser_id FROM subscr_messages WHERE message_id=? AND suser_id!=?",
+                new Object[] {mid, ignore_uid}, Integer.class);
+        if (userids.size() > 0) {
+            return UserQueries.getUsersByID(sql, userids);
+        } else {
+            return new ArrayList<>();
+        }
+    }
+
+    public static List<User> getUsersSubscribedToUserRecommendations(JdbcTemplate sql, int uid, int mid, int muid) {
+        List<Integer> tags = MessagesQueries.getMessageTagsIDs(sql, mid);
+
+            String query = "SELECT user_id IN (SELECT suser_id FROM subscr_users WHERE user_id=" + uid + ")";
+            query += " AND user_id NOT IN (SELECT user_id FROM bl_users WHERE bl_user_id=" + muid + ")";
+            query += " AND user_id NOT IN (SELECT suser_id FROM subscr_users WHERE user_id=" + muid + ")";
+            query += " AND user_id NOT IN (SELECT suser_id FROM subscr_messages WHERE message_id=" + mid + ")";
+            query += " AND user_id NOT IN (SELECT user_id FROM favorites WHERE message_id=" + mid + ")";
+            query += " AND user_id NOT IN (SELECT subscr_users.suser_id FROM subscr_users INNER JOIN favorites ON (favorites.message_id=" + mid + " AND subscr_users.user_id=favorites.user_id AND favorites.user_id!=" + uid + "))";
+            if (!tags.isEmpty()) {
+                String tagsStr = Utils.convertArrayInt2String(tags);
+                query += " AND user_id NOT IN (SELECT suser_id FROM subscr_tags WHERE tag_id IN (" + tagsStr + "))";
+                query += " AND user_id NOT IN (SELECT user_id FROM bl_tags WHERE tag_id IN (" + tagsStr + "))";
+            }
+        List<Integer> userids = sql.queryForList(query, Integer.class);
+        return UserQueries.getUsersByID(sql, userids);
+    }
+
+    public static boolean subscribeMessage(JdbcTemplate sql, int mid, int vuid) {
+        return sql.update("INSERT IGNORE INTO subscr_messages(suser_id,message_id) VALUES (" + vuid + "," + mid + ")") == 1;
+    }
+    public static boolean unSubscribeMessage(JdbcTemplate sql, int mid, int vuid) {
+        return sql.update("DELETE FROM subscr_messages WHERE message_id=? AND suser_id=?",
+                mid, vuid) > 0;
+    }
+    public static boolean subscribeUser(JdbcTemplate sql, User user, User toUser) {
+        return sql.update("INSERT IGNORE INTO subscr_users(user_id,suser_id) VALUES (?,?)",
+                user.getUID(), toUser.getUID()) == 1;
+    }
+    public static boolean unSubscribeUser(JdbcTemplate sql, User user, User fromUser) {
+        return sql.update("DELETE FROM subscr_users WHERE suser_id=? AND user_id=?",
+                user.getUID(), fromUser.getUID()) > 0;
+    }
+    public static boolean subscribeTag(JdbcTemplate sql, User user, Tag toTag) {
+        return sql.update("INSERT IGNORE INTO subscr_tags(tag_id,suser_id) VALUES (?,?)",
+                toTag.TID, user.getUID()) == 1;
+    }
+    public static boolean unSubscribeTag(JdbcTemplate sql, User user, Tag toTag) {
+        return sql.update("DELETE FROM subscr_tags WHERE tag_id=? AND suser_id=?",
+                toTag.TID, user.getUID()) > 0;
+    }
+
+}
diff --git a/src/main/java/com/juick/server/TagQueries.java b/src/main/java/com/juick/server/TagQueries.java
new file mode 100644
index 00000000..2258a8ea
--- /dev/null
+++ b/src/main/java/com/juick/server/TagQueries.java
@@ -0,0 +1,166 @@
+/*
+ * Juick
+ * Copyright (C) 2008-2011, Ugnich Anton
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.juick.server;
+
+import com.juick.Tag;
+import org.springframework.dao.EmptyResultDataAccessException;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.jdbc.support.GeneratedKeyHolder;
+import org.springframework.jdbc.support.KeyHolder;
+
+import java.sql.PreparedStatement;
+import java.sql.Statement;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+
+/**
+ *
+ * @author Ugnich Anton
+ */
+public class TagQueries {
+
+    public static com.juick.Tag getTag(JdbcTemplate sql, int tid) {
+        try {
+            return sql.queryForObject("SELECT synonym_id,name FROM tags WHERE tag_id=?",
+                    new Object[]{tid}, (rs, num) -> {
+                        Tag ret = new Tag();
+                        ret.TID = tid;
+                        ret.SynonymID = rs.getInt(1);
+                        ret.Name = rs.getString(2);
+                        return ret;
+                    });
+        } catch (EmptyResultDataAccessException e) {
+            return null;
+        }
+    }
+
+    public static com.juick.Tag getTag(JdbcTemplate sql, String tag, boolean autoCreate) {
+        Tag ret = null;
+        try {
+            ret = sql.queryForObject("SELECT tag_id,synonym_id,name FROM tags WHERE name=?",
+                    new Object[]{tag}, (rs, rowNum) -> {
+                        Tag ret1 = new Tag();
+                        ret1.TID = rs.getInt(1);
+                        ret1.SynonymID = rs.getInt(2);
+                        ret1.Name = rs.getString(3);
+                        return ret1;
+                    });
+        } catch (EmptyResultDataAccessException e) {
+            // tag not found
+        }
+        if (ret == null && autoCreate) {
+            ret = new com.juick.Tag();
+            ret.TID = createTag(sql, tag);
+            ret.Name = tag;
+        }
+
+        return ret;
+    }
+
+    public static List<com.juick.Tag> getTags(JdbcTemplate sql, String[] tags, boolean autoCreate) {
+        List<Tag> ret = new ArrayList<>();
+
+        for (String tag : tags) {
+            if (!tag.isEmpty()) {
+                Tag t = getTag(sql, tag, autoCreate);
+                if (t != null) {
+                    ret.add(t);
+                }
+            }
+        }
+
+        return ret;
+    }
+
+    public static boolean getTagNoIndex(JdbcTemplate sql, int tag_id) {
+        try {
+            return sql.queryForObject("SELECT noindex FROM tags WHERE tag_id=?", Integer.class, tag_id) == 1;
+        } catch (EmptyResultDataAccessException e) {
+            return false;
+        }
+    }
+
+    public static int createTag(JdbcTemplate sql, String name) {
+        KeyHolder holder = new GeneratedKeyHolder();
+        sql.update(con -> {
+            PreparedStatement stmt = con.prepareStatement("INSERT INTO tags(name) VALUES (?)",
+                    Statement.RETURN_GENERATED_KEYS);
+                stmt.setString(1, name);                
+                return stmt;
+        }, holder);
+
+        return holder.getKey().intValue();        
+    }
+
+    public static List<com.juick.Tag> getUserTagsAll(JdbcTemplate sql, int uid) {
+        return sql.query("SELECT tags.name,COUNT(messages.message_id) " +
+                        "FROM (messages INNER JOIN messages_tags ON (messages.user_id=? " +
+                        "AND messages.message_id=messages_tags.message_id)) " +
+                        "INNER JOIN tags ON messages_tags.tag_id=tags.tag_id GROUP BY tags.tag_id ORDER BY tags.name ASC",
+                (rs, rowNum) -> {
+                    Tag t = new Tag();
+                    t.Name = rs.getString(1);
+                    t.UsageCnt = rs.getInt(2);
+                    return t;
+                }, uid);
+    }
+
+    public static List<String> getUserBLTags(JdbcTemplate sql, int uid) {
+        return sql.queryForList("SELECT tags.name FROM tags INNER JOIN bl_tags " +
+                        "ON (bl_tags.user_id=? AND bl_tags.tag_id=tags.tag_id) ORDER BY tags.name",
+                String.class, uid);
+    }
+
+    public static List<String> getPopularTags(JdbcTemplate sql) {
+        return sql.queryForList("SELECT name FROM tags WHERE top=1 ORDER BY name ASC", String.class);
+    }
+    public static List<Tag> updateTags(JdbcTemplate sql, int mid, List<Tag> newTags) {
+        List<Tag> currentTags = MessagesQueries.getMessageTags(sql, mid);
+        newTags.stream().filter(currentTags::contains)
+                .forEach(t -> sql.update("DELETE FROM messages_tags WHERE message_id=? AND tag_id=?", mid, t.TID));
+        newTags.stream().filter(t -> !currentTags.contains(t))
+                .forEach(t -> sql.update("INSERT INTO messages_tags(message_id,tag_id) VALUES (?,?)", mid, t.TID));
+        return MessagesQueries.getMessageTags(sql, mid);
+    }
+
+    public static List<Tag> fromString(JdbcTemplate sql, String txt, boolean tagsOnly) {
+        String patternString = tagsOnly ? "^(?:(?:\\*[^ \\r\\n\\t]+)|\\s)+$" : "^\\*([^ \\r\\n\\t]+)\\s+([\\s\\S]+)";
+        Pattern tagsPattern = Pattern.compile(patternString);
+        if (tagsPattern.matcher(txt).matches()) {
+            Pattern tagPattern = Pattern.compile("\\*([^ \\r\\n\\t]+)");
+            Matcher tagMatcher = tagPattern.matcher(txt);
+            List<Tag> tags = new ArrayList<>();
+            // TODO: process readonly, private, friends, public
+            while (tagMatcher.find()) {
+                for (int i = 1; i <= tagMatcher.groupCount(); i++) {
+                    tags.add(getTag(sql, tagMatcher.group(i), true));
+                }
+            }
+            return tags;
+        }
+        return Collections.emptyList();
+    }
+    public static String toString(List<Tag> tags) {
+        return tags.stream().map(t -> " *" + t.Name)
+                .collect(Collectors.joining());
+    }
+}
diff --git a/src/main/java/com/juick/server/UserQueries.java b/src/main/java/com/juick/server/UserQueries.java
new file mode 100644
index 00000000..db380d7a
--- /dev/null
+++ b/src/main/java/com/juick/server/UserQueries.java
@@ -0,0 +1,440 @@
+/*
+ * Juick
+ * Copyright (C) 2008-2011, Ugnich Anton
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.juick.server;
+
+import com.juick.User;
+import org.springframework.dao.EmptyResultDataAccessException;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.jdbc.core.RowMapper;
+import org.springframework.jdbc.support.GeneratedKeyHolder;
+import org.springframework.jdbc.support.KeyHolder;
+import org.springframework.util.StringUtils;
+
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.util.*;
+
+/**
+ *
+ * @author Ugnich Anton
+ */
+public class UserQueries {
+
+    static final String ABCDEF = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+
+    public static class UserMapper implements RowMapper<User> {
+        @Override
+        public User mapRow(ResultSet rs, int rowNum) throws SQLException {
+            User user = new User();
+            user.setUID(rs.getInt(1));
+            user.setUName(rs.getString(2));
+            user.Banned = rs.getBoolean(3);
+            return user;
+        }
+    }
+
+    public static String getSignUpHashByJID(JdbcTemplate sql, String jid) {
+        String hash = sql.queryForObject("SELECT loginhash FROM jids WHERE jid=? AND user_id IS NULL",
+                String.class, jid);
+        if (hash == null) {
+            hash = UUID.randomUUID().toString();
+            sql.update("INSERT INTO jids(jid,loginhash) VALUES (?,?)", jid, hash);
+        }
+        return hash;
+    }
+    public static String getSignUpHashByTelegramID(JdbcTemplate sql, Long telegramId, String username) {
+        try {
+            return sql.queryForObject("SELECT loginhash FROM telegram WHERE tg_id=? AND user_id IS NULL",
+                    String.class, telegramId);
+        } catch (EmptyResultDataAccessException e) {
+            String hash = UUID.randomUUID().toString();
+            sql.update("INSERT INTO telegram(tg_id, loginhash, tg_name) VALUES (?, ?, ?)", telegramId, hash, username);
+            return hash;
+        }
+    }
+
+    public static int createUser(JdbcTemplate sql, String username, String password) {
+        KeyHolder holder = new GeneratedKeyHolder();
+        sql.update(con -> {
+            PreparedStatement stmt = con.prepareStatement("INSERT INTO users(nick,passw) VALUES (?,?)",
+                    Statement.RETURN_GENERATED_KEYS);
+                stmt.setString(1, username);
+                stmt.setString(2, password);
+                return stmt;
+        }, holder);
+
+        int uid = holder.getKey().intValue();
+
+        sql.update("INSERT INTO useroptions(user_id) VALUES (?)", uid);
+        sql.update("INSERT INTO subscr_users(user_id,suser_id) VALUES (2,?)", uid);
+
+        return uid;
+    }
+
+    public static Optional<User> getUserByUID(JdbcTemplate sql, int uid) {
+        try {
+            return Optional.of(sql.queryForObject("SELECT id, nick,banned FROM users WHERE id=?",
+                    new UserMapper(), uid));
+        } catch (EmptyResultDataAccessException e) {
+            return Optional.empty();
+        }
+    }
+
+    public static User getUserByName(JdbcTemplate sql, String username) {
+        try {
+            return sql.queryForObject("SELECT id,nick,banned FROM users WHERE nick=?",
+                    new UserMapper(),
+                    username);
+        } catch (EmptyResultDataAccessException e) {
+            return null;
+        }
+    }
+
+    public static User getUserByJID(JdbcTemplate sql, String jid) {
+        try {
+            return sql.queryForObject("SELECT id,nick,banned FROM users WHERE id=(SELECT user_id FROM jids WHERE jid=?)",
+                    new UserMapper(), jid);
+        } catch (EmptyResultDataAccessException e) {
+            return null;
+        }
+    }
+
+    public static List<User> getUsersByName(JdbcTemplate sql, List<String> unames) {
+    	if (!unames.isEmpty()) {
+            return sql.query("SELECT id,nick,banned FROM users WHERE nick IN (" + Utils.convertArrayString2String(unames) + ")",
+                    new UserMapper());
+        }
+	return Collections.emptyList();
+    }
+
+    public static List<User> getUsersByID(JdbcTemplate sql, List<Integer> uids) {
+	if (!uids.isEmpty()) {
+            return sql.query("SELECT id,nick,banned FROM users WHERE id IN (" + Utils.convertArrayInt2String(uids) + ")",
+                    new UserMapper());
+	}
+	return Collections.emptyList();
+    }
+
+    public static boolean fillUsersByID(JdbcTemplate sql, List<User> users) {
+        boolean ret = false;
+
+        String uids = "";
+        final int usersSize = users.size();
+        for (int i = 0; i < usersSize; i++) {
+            if (i > 0) {
+                uids += ",";
+            }
+            uids += users.get(i).getUID();
+        }
+
+        sql.query("SELECT id,nick,banned FROM users WHERE id IN (" + uids + ")",
+                (rs, num) -> {
+                    User u = new User();
+                    u.setUID(rs.getInt(1));
+                    u.setUName(rs.getString(2));
+                    return u;
+                });        
+
+        return true;
+    }
+
+    public static List<com.juick.User> getUsersByJID(JdbcTemplate sql, List<String> jids) {
+        return sql.query("SELECT users.id,users.nick,jids.jid FROM users "
+                + "INNER JOIN jids ON jids.user_id=users.id "
+                + "WHERE jids.jid IN (" + Utils.convertArrayString2String(jids) + ")",
+                (rs, rowNum) -> {
+                    com.juick.User user = new com.juick.User();
+                    user.setUID(rs.getInt(1));
+                    user.setUName(rs.getString(2));
+                    user.setJID(rs.getString(3));
+                    return user;
+                });
+    }
+
+    public static List<String> getJIDsbyUID(JdbcTemplate sql, int uid) {
+        return sql.queryForList("SELECT jid FROM jids WHERE user_id=? AND active=1", String.class, uid);
+    }
+
+    public static int getUIDbyJID(JdbcTemplate sql, String jid) {
+        return sql.queryForObject("SELECT user_id FROM jids WHERE jid=?", Integer.class, jid);
+    }
+
+    public static int getUIDbyName(JdbcTemplate sql, String uname) {
+        try {
+            return sql.queryForObject("SELECT id FROM users WHERE nick=?", Integer.class, uname);
+        } catch (EmptyResultDataAccessException e) {
+            return 0;
+        }
+    }
+
+    public static int getUIDbyHash(JdbcTemplate sql, String hash) {
+        try {
+            return sql.queryForObject("SELECT user_id FROM logins WHERE hash=?", Integer.class, hash);
+        } catch (EmptyResultDataAccessException e) {
+            return 0;
+        }
+    }
+
+    public static com.juick.User getUserByHash(JdbcTemplate sql, String hash) {
+        try {
+            User user = sql.queryForObject("SELECT logins.user_id,users.nick, users.banned FROM logins " +
+                            "INNER JOIN users ON logins.user_id=users.id WHERE logins.hash=?",
+                    new UserMapper(), hash);
+            user.setAuthHash(hash);
+            return user;
+        } catch (EmptyResultDataAccessException e) {
+            return new User();
+        }
+    }
+
+    public static String getHashByUID(JdbcTemplate sql, int uid) {
+        try {
+            return sql.queryForObject("SELECT hash FROM logins WHERE user_id=?", String.class, uid);
+        } catch (EmptyResultDataAccessException e){
+            String hash = generateHash(16);
+            sql.update(con -> {
+                PreparedStatement stmt = con.prepareStatement("INSERT INTO logins(user_id,hash) VALUES (?,?)");
+                stmt.setInt(1, uid);
+                stmt.setString(2, hash);
+                return stmt;
+            });
+            return hash;
+        }
+    }
+
+    public static String generateHash(int len) {
+        Random rnd = new Random();
+        StringBuilder sb = new StringBuilder(len);
+        for (int i = 0; i < len; i++) {
+            sb.append(ABCDEF.charAt(rnd.nextInt(ABCDEF.length())));
+        }
+        return sb.toString();
+    }
+
+    public static boolean checkUserNameValid(String uname) {
+        return uname != null && uname.length() >= 2 && uname.length() <= 16 && uname.matches("[a-zA-Z0-9\\-]+");
+    }
+
+    public static int checkPassword(JdbcTemplate sql, String username, String password) {
+        try {
+            String realPassword = sql.queryForObject("SELECT passw FROM users WHERE nick=?", String.class, username);
+            if (realPassword.equals(password)) {
+                User user = UserQueries.getUserByName(sql, username);
+                if (user != null) {
+                    return user.getUID();
+                } else {
+                    return -1;
+                }
+            } else {
+                return -1;
+            }
+        } catch (EmptyResultDataAccessException e) {
+            return -1;
+        }
+    }
+
+    public static int getUserOptionInt(JdbcTemplate sql, int uid, String option, int defaultValue) {
+        try {
+            return sql.queryForObject("SELECT " + option + " FROM useroptions WHERE user_id=?", Integer.class, uid);
+        } catch (EmptyResultDataAccessException e) {
+            return defaultValue;
+        }
+    }
+
+    public static void setUserOptionInt(JdbcTemplate sql, int uid, String option, int value) {
+        sql.update("UPDATE useroptions SET " + option + "=? WHERE user_id=?", value, uid);
+    }
+
+    public static boolean getCanMedia(JdbcTemplate sql, int uid) {
+        try {
+            int res = sql.queryForObject("SELECT users.lastphoto-UNIX_TIMESTAMP() FROM users WHERE id=?",
+                    Integer.class, uid);
+            return res < 3600;
+        } catch (EmptyResultDataAccessException e) {
+            return false;
+        }
+    }
+
+    public static boolean isInWL(JdbcTemplate sql, int uid, int check) {
+        try {
+            return sql.queryForObject("SELECT 1 FROM wl_users WHERE user_id=? AND wl_user_id=?",
+                    Integer.class, uid, check) == 1;
+        } catch (EmptyResultDataAccessException e) {
+            return false;
+        }
+    }
+
+    public static boolean isInBL(JdbcTemplate sql, int uid, int check) {
+        try {
+            return sql.queryForObject("SELECT 1 FROM bl_users WHERE user_id=? AND bl_user_id=?",
+                    Integer.class, uid, check) == 1;
+        } catch (EmptyResultDataAccessException e) {
+            return false;
+        }
+    }
+
+    public static boolean isInBLAny(JdbcTemplate sql, int uid, int uid2) {
+        try {
+            return sql.queryForObject("SELECT 1 FROM bl_users "
+                    + "WHERE (user_id=? AND bl_user_id=?) "
+                    + "OR (user_id=? AND bl_user_id=?)", new Object[]{uid, uid2, uid2, uid}, Integer.class) == 1;
+        } catch (EmptyResultDataAccessException e) {
+            return false;
+        }
+    }
+
+    public static List<Integer> checkBL(JdbcTemplate sql, int visitor, List<Integer> uids) {
+        if (!uids.isEmpty()) {
+            return sql.queryForList("SELECT user_id FROM bl_users WHERE bl_user_id=? and user_id IN (" +
+                    StringUtils.collectionToCommaDelimitedString(uids) + ")", Integer.class, visitor);
+        } else {
+            return new ArrayList<>();
+        }
+    }
+
+    public static boolean isSubscribed(JdbcTemplate sql, int uid, int check) {
+        try {
+            return sql.queryForObject("SELECT 1 FROM subscr_users WHERE suser_id=? AND user_id=?",
+                    Integer.class, uid, check) == 1;
+        } catch (EmptyResultDataAccessException e) {
+            return false;
+        }
+    }
+
+    public static List<Integer> getUserRead(JdbcTemplate sql, int uid) {
+        return sql.queryForList("SELECT user_id FROM subscr_users WHERE suser_id=?", Integer.class, uid);
+    }
+
+    public static List<com.juick.User> getUserReadLeastPopular(JdbcTemplate sql, int uid, int cnt) {
+        return sql.query("SELECT users.id,users.nick FROM (subscr_users " +
+                        "INNER JOIN users_subscr ON (subscr_users.suser_id=? " +
+                        "AND subscr_users.user_id=users_subscr.user_id)) INNER JOIN users " +
+                        "ON subscr_users.user_id=users.id ORDER BY cnt LIMIT ?",
+                (rs, num) -> {
+                    com.juick.User u = new com.juick.User();
+                    u.setUID(rs.getInt(1));
+                    u.setUName(rs.getString(2));
+                    return u;
+                }, uid, cnt);
+    }
+
+    public static List<User> getUserReaders(JdbcTemplate sql, int uid) {
+        return sql.query("SELECT users.id, users.nick FROM subscr_users " +
+                        "INNER JOIN users ON subscr_users.suser_id=users.id " +
+                        "WHERE subscr_users.user_id=? ORDER BY users.nick",
+                (rs, num) -> {
+                    com.juick.User u = new com.juick.User();
+                    u.setUID(rs.getInt(1));
+                    u.setUName(rs.getString(2));
+                    return u;
+                }, uid);
+    }
+
+    public static List<User> getUserFriends(JdbcTemplate sql, int uid) {
+        return sql.query("SELECT users.id,users.nick FROM subscr_users " +
+                        "INNER JOIN users ON subscr_users.user_id=users.id " +
+                        "WHERE subscr_users.suser_id=? AND users.id!=? " +
+                        "ORDER BY users.nick",
+                (rs, num) -> {
+                    com.juick.User u = new com.juick.User();
+                    u.setUID(rs.getInt(1));
+                    u.setUName(rs.getString(2));
+                    return u;
+                }, uid, uid);
+    }
+
+    public static List<com.juick.User> getUserBLUsers(JdbcTemplate sql, int uid) {
+        return sql.query("SELECT users.id,users.nick FROM users INNER JOIN bl_users " +
+                        "ON(bl_users.bl_user_id=users.id) WHERE bl_users.user_id=? ORDER BY users.nick",
+                (rs, num) -> {
+                    com.juick.User u = new com.juick.User();
+                    u.setUID(rs.getInt(1));
+                    u.setUName(rs.getString(2));
+                    return u;
+                }, uid);
+    }
+
+    public static boolean linkTwitterAccount(JdbcTemplate sql, User user, String accessToken,
+                                             String accessTokenSecret, String screenName) {
+        if (sql.update("INSERT INTO twitter(user_id,access_token,access_token_secret,uname) " +
+                        "VALUES (?,?,?,?)" +
+                        " ON DUPLICATE KEY UPDATE access_token=?,access_token_secret=?,uname=?",
+                user.getUID(), accessToken, accessTokenSecret, screenName, accessToken, accessTokenSecret, screenName) > 0) {
+            return sql.update("INSERT INTO subscr_users(user_id,suser_id,jid) " +
+                    "VALUES (?,1741,'juick\\@twitter.juick.com')", user.getUID()) > 0;
+        }
+        return false;
+
+    }
+
+    public static int getStatsIRead(JdbcTemplate sql, int uid) {
+        try {
+            return sql.queryForObject("SELECT COUNT(*) FROM subscr_users WHERE suser_id=?", Integer.class, uid);
+        } catch (EmptyResultDataAccessException e) {
+            return 0;
+        }
+    }
+
+    public static int getStatsMyReaders(JdbcTemplate sql, int uid) {
+        try {
+            return sql.queryForObject("SELECT COUNT(*) FROM subscr_users WHERE user_id=?", Integer.class, uid);
+        } catch (EmptyResultDataAccessException e) {
+            return 0;
+        }
+    }
+
+    public static int getStatsMessages(JdbcTemplate sql, int uid) {
+        try {
+            return sql.queryForObject("SELECT COUNT(*) FROM messages WHERE user_id=?", Integer.class, uid);
+        } catch (EmptyResultDataAccessException e) {
+            return 0;
+        }
+    }
+
+    public static int getStatsReplies(JdbcTemplate sql, int uid) {
+        try {
+            return sql.queryForObject("SELECT COUNT(*) FROM replies WHERE user_id=?", Integer.class, uid);
+        } catch (EmptyResultDataAccessException e) {
+            return 0;
+        }
+    }
+
+    public enum ActiveStatus {
+        Inactive,
+        Active
+    }
+
+    public static boolean setActiveStatusForJID(JdbcTemplate sql, String JID, ActiveStatus jidStatus) {
+        User user = getUserByJID(sql, JID);
+        if (user != null) {
+            return sql.update(con -> {
+                PreparedStatement preparedStatement = con.prepareStatement(
+                        "UPDATE jids SET active=? WHERE user_id=? AND jid=?");
+                int newStatus = jidStatus == ActiveStatus.Active ? 1 : 0;
+                preparedStatement.setInt(1, newStatus);
+                preparedStatement.setInt(2, user.getUID());
+                preparedStatement.setString(3, JID);
+                return preparedStatement;
+
+            }) >= 0;
+        }
+        return false;
+    }
+}
diff --git a/src/main/java/com/juick/server/Utils.java b/src/main/java/com/juick/server/Utils.java
new file mode 100644
index 00000000..1968150e
--- /dev/null
+++ b/src/main/java/com/juick/server/Utils.java
@@ -0,0 +1,86 @@
+/*
+ * Juick
+ * Copyright (C) 2008-2011, Ugnich Anton
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.juick.server;
+
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.util.List;
+
+/**
+ *
+ * @author Ugnich Anton
+ */
+public class Utils {
+
+    public static String convertArrayInt2String(List<Integer> mids) {
+        String q = "";
+        for (int i = 0; i < mids.size(); i++) {
+            if (i > 0) {
+                q += ",";
+            }
+            q += mids.get(i);
+        }
+        return q;
+    }
+
+    public static String convertArrayString2String(List<String> unames) {
+        String q = "";
+        for (int i = 0; i < unames.size(); i++) {
+            if (i > 0) {
+                q += ",";
+            }
+            q += "\"" + unames.get(i) + "\"";
+        }
+        return q;
+    }
+
+    public static String buildQueryArray(String query1, int length, String query2) {
+        String ret = query1;
+        for (int i = 0; i < length; i++) {
+            if (i > 0) {
+                ret += ",";
+            }
+            ret += "?";
+        }
+        ret += query2;
+        return ret;
+    }
+
+    public static void stmtSetStringArray(PreparedStatement stmt, int offset, String strs[]) throws SQLException {
+        for (int i = 0; i < strs.length; i++) {
+            stmt.setString(offset + i, strs[i]);
+        }
+    }
+
+    public static void finishSQL(ResultSet rs, Statement stmt) {
+        if (rs != null) {
+            try {
+                rs.close();
+            } catch (SQLException e) {
+            }
+        }
+        if (stmt != null) {
+            try {
+                stmt.close();
+            } catch (SQLException e) {
+            }
+        }
+    }
+}
diff --git a/src/main/java/com/juick/server/helpers/PrivacyOpts.java b/src/main/java/com/juick/server/helpers/PrivacyOpts.java
new file mode 100644
index 00000000..66cf9410
--- /dev/null
+++ b/src/main/java/com/juick/server/helpers/PrivacyOpts.java
@@ -0,0 +1,29 @@
+package com.juick.server.helpers;
+
+/**
+ * Created by vt on 16/01/16.
+ */
+public class PrivacyOpts {
+    private int uid;
+    private int privacy;
+
+    public PrivacyOpts() {
+
+    }
+
+    public int getUid() {
+        return uid;
+    }
+
+    public void setUid(int uid) {
+        this.uid = uid;
+    }
+
+    public int getPrivacy() {
+        return privacy;
+    }
+
+    public void setPrivacy(int privacy) {
+        this.privacy = privacy;
+    }
+}