From 55f03c70caeec32ae71e5afe99c4eae5b6b192d3 Mon Sep 17 00:00:00 2001
From: Ugnich Anton
Date: Sat, 24 Dec 2011 23:05:48 +0700
Subject: Initial commit

---
 src/com/juick/server/ChatQueries.java     |  86 +++++
 src/com/juick/server/MessagesQueries.java | 551 ++++++++++++++++++++++++++++++
 src/com/juick/server/PlacesQueries.java   |  55 +++
 src/com/juick/server/TagQueries.java      |  68 ++++
 src/com/juick/server/UserQueries.java     | 218 ++++++++++++
 src/com/juick/server/Utils.java           |  56 +++
 6 files changed, 1034 insertions(+)
 create mode 100644 src/com/juick/server/ChatQueries.java
 create mode 100644 src/com/juick/server/MessagesQueries.java
 create mode 100644 src/com/juick/server/PlacesQueries.java
 create mode 100644 src/com/juick/server/TagQueries.java
 create mode 100644 src/com/juick/server/UserQueries.java
 create mode 100644 src/com/juick/server/Utils.java

(limited to 'src')

diff --git a/src/com/juick/server/ChatQueries.java b/src/com/juick/server/ChatQueries.java
new file mode 100644
index 00000000..19f95637
--- /dev/null
+++ b/src/com/juick/server/ChatQueries.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.Connection;
+import java.sql.PreparedStatement;
+import java.sql.SQLException;
+
+/**
+ *
+ * @author Ugnich Anton
+ */
+public class ChatQueries {
+
+    public static boolean subscribeTag(Connection sql, int uid, int tagid) {
+        boolean ret = false;
+        PreparedStatement stmt = null;
+        try {
+            stmt = sql.prepareStatement("INSERT INTO chat_subscr_tags(tag_id,user_id) VALUES (?,?)");
+            stmt.setInt(1, tagid);
+            stmt.setInt(2, uid);
+            if (stmt.executeUpdate() > 0) {
+                ret = true;
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(null, stmt);
+        }
+
+        return ret;
+    }
+
+    public static boolean unsubscribeTag(Connection sql, int uid, int tagid) {
+        boolean ret = false;
+        PreparedStatement stmt = null;
+        try {
+            stmt = sql.prepareStatement("DELETE FROM chat_subscr_tags WHERE tag_id=? AND user_id=?");
+            stmt.setInt(1, tagid);
+            stmt.setInt(2, uid);
+            if (stmt.executeUpdate() > 0) {
+                ret = true;
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(null, stmt);
+        }
+
+        return ret;
+    }
+
+    public static boolean setSubscriptionsActive(Connection sql, int uid, boolean enabled) {
+        boolean ret = false;
+        PreparedStatement stmt = null;
+        try {
+            stmt = sql.prepareStatement("UPDATE chat_subscr_tags SET active=? WHERE user_id=?");
+            stmt.setInt(1, enabled ? 1 : 0);
+            stmt.setInt(2, uid);
+            if (stmt.executeUpdate() > 0) {
+                ret = true;
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(null, stmt);
+        }
+
+        return ret;
+    }
+}
diff --git a/src/com/juick/server/MessagesQueries.java b/src/com/juick/server/MessagesQueries.java
new file mode 100644
index 00000000..3ff47ca7
--- /dev/null
+++ b/src/com/juick/server/MessagesQueries.java
@@ -0,0 +1,551 @@
+/*
+ * 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.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.ArrayList;
+
+/**
+ *
+ * @author Ugnich Anton
+ */
+public class MessagesQueries {
+
+    public static com.juick.Message getMessage(Connection sql, int mid) {
+        com.juick.Message msg = null;
+
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            stmt = sql.prepareStatement("SELECT messages.user_id,users.nick,messages.ts,messages.readonly,messages.attach,messages.place_id,messages.lat,messages.lon FROM messages INNER JOIN users ON messages.user_id=users.id WHERE messages.message_id=?");
+            stmt.setInt(1, mid);
+            rs = stmt.executeQuery();
+            if (rs.first()) {
+                msg = new com.juick.Message();
+                msg.MID = mid;
+                msg.User = new com.juick.User();
+                msg.User.UID = rs.getInt(1);
+                msg.User.UName = rs.getString(2);
+                msg.TimestampString = rs.getString(3);
+                msg.ReadOnly = rs.getBoolean(4);
+                msg.AttachmentType = rs.getString(5);
+                if (rs.getInt(6) > 0) {
+                    msg.place = PlacesQueries.getPlace(sql, rs.getInt(6));
+                }
+                if (rs.getDouble(7) != 0) {
+                    msg.place = new com.juick.Place();
+                    msg.place.lat = rs.getDouble(7);
+                    msg.place.lon = rs.getDouble(8);
+                }
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+
+        if (msg == null) {
+            return null;
+        }
+
+        try {
+            stmt = sql.prepareStatement("SELECT messages_txt.tags,messages_txt.txt FROM messages_txt WHERE message_id=?");
+            stmt.setInt(1, mid);
+            rs = stmt.executeQuery();
+            if (rs.first()) {
+                msg.parseTags(rs.getString(1));
+                msg.Text = rs.getString(2);
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+
+        return msg;
+    }
+
+    public static com.juick.Message getReply(Connection sql, int mid, int rid) {
+        com.juick.Message msg = null;
+
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            stmt = sql.prepareStatement("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=?");
+            stmt.setInt(1, mid);
+            stmt.setInt(2, rid);
+            rs = stmt.executeQuery();
+            if (rs.first()) {
+                msg = new com.juick.Message();
+                msg.MID = mid;
+                msg.RID = rid;
+                msg.User = new com.juick.User();
+                msg.User.UID = rs.getInt(1);
+                msg.User.UName = rs.getString(2);
+                msg.ReplyTo = rs.getInt(3);
+                msg.TimestampString = rs.getString(4);
+                msg.AttachmentType = rs.getString(5);
+                msg.Text = rs.getString(6);
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+
+        return msg;
+    }
+
+    public static com.juick.User getMessageAuthor(Connection sql, int mid) {
+        com.juick.User user = null;
+
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            stmt = sql.prepareStatement("SELECT messages.user_id,users.nick FROM messages INNER JOIN users ON messages.user_id=users.id WHERE messages.message_id=?");
+            stmt.setInt(1, mid);
+            rs = stmt.executeQuery();
+            if (rs.first()) {
+                user = new com.juick.User();
+                user.UID = rs.getInt(1);
+                user.UName = rs.getString(2);
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+        return user;
+    }
+
+    public static ArrayList<Integer> getAll(Connection sql, int before) {
+        ArrayList<Integer> mids = new ArrayList<Integer>(20);
+
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            if (before > 0) {
+                stmt = sql.prepareStatement("SELECT messages.message_id FROM messages WHERE messages.message_id<? AND messages.privacy>0 ORDER BY messages.message_id DESC LIMIT 20");
+                stmt.setInt(1, before);
+            } else {
+                stmt = sql.prepareStatement("SELECT messages.message_id FROM messages WHERE messages.privacy>0 ORDER BY messages.message_id DESC LIMIT 20");
+            }
+            rs = stmt.executeQuery();
+            rs.beforeFirst();
+            while (rs.next()) {
+                mids.add(rs.getInt(1));
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+        return mids;
+    }
+
+    public static ArrayList<Integer> getTag(Connection sql, int tid, int before) {
+        ArrayList<Integer> mids = new ArrayList<Integer>(20);
+
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            if (before > 0) {
+                stmt = sql.prepareStatement("SELECT messages.message_id FROM messages_tags INNER JOIN messages USING(message_id) WHERE messages_tags.tag_id=? AND messages.message_id<? AND messages.privacy>0 ORDER BY messages.message_id DESC LIMIT 20");
+                stmt.setInt(1, tid);
+                stmt.setInt(2, before);
+            } else {
+                stmt = sql.prepareStatement("SELECT messages.message_id FROM messages_tags INNER JOIN messages USING(message_id) WHERE messages_tags.tag_id=? AND messages.privacy>0 ORDER BY messages.message_id DESC LIMIT 20");
+                stmt.setInt(1, tid);
+            }
+            rs = stmt.executeQuery();
+            rs.beforeFirst();
+            while (rs.next()) {
+                mids.add(rs.getInt(1));
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+        return mids;
+    }
+
+    public static ArrayList<Integer> getMyFeed(Connection sql, int uid, int before) {
+        ArrayList<Integer> mids = new ArrayList<Integer>(20);
+
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            if (before > 0) {
+                stmt = sql.prepareStatement("SELECT message_id FROM feed WHERE user_id=? AND message_id<? ORDER BY message_id DESC LIMIT 20");
+                stmt.setInt(1, uid);
+                stmt.setInt(2, before);
+            } else {
+                stmt = sql.prepareStatement("SELECT message_id FROM feed WHERE user_id=? ORDER BY message_id DESC LIMIT 20");
+                stmt.setInt(1, uid);
+            }
+            rs = stmt.executeQuery();
+            rs.beforeFirst();
+            while (rs.next()) {
+                mids.add(rs.getInt(1));
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+        return mids;
+    }
+
+    public static ArrayList<Integer> getPrivate(Connection sql, int uid, int before) {
+        ArrayList<Integer> mids = new ArrayList<Integer>(20);
+
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            if (before > 0) {
+                stmt = sql.prepareStatement("SELECT message_id FROM messages_access WHERE user_id=? AND message_id<? ORDER BY message_id DESC LIMIT 20");
+                stmt.setInt(1, uid);
+                stmt.setInt(2, before);
+            } else {
+                stmt = sql.prepareStatement("SELECT message_id FROM messages_access WHERE user_id=? ORDER BY message_id DESC LIMIT 20");
+                stmt.setInt(1, uid);
+            }
+            rs = stmt.executeQuery();
+            rs.beforeFirst();
+            while (rs.next()) {
+                mids.add(rs.getInt(1));
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+        return mids;
+    }
+
+    public static ArrayList<Integer> getIncoming(Connection sql, int uid, int before) {
+        ArrayList<Integer> mids = new ArrayList<Integer>(20);
+
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            if (before > 0) {
+                stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE user_id IN (SELECT suser_id FROM subscr_users WHERE user_id=?) AND message_id<? ORDER BY message_id DESC LIMIT 20");
+                stmt.setInt(1, uid);
+                stmt.setInt(2, before);
+            } else {
+                stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE user_id IN (SELECT suser_id FROM subscr_users WHERE user_id=?) ORDER BY message_id DESC LIMIT 20");
+                stmt.setInt(1, uid);
+            }
+            rs = stmt.executeQuery();
+            rs.beforeFirst();
+            while (rs.next()) {
+                mids.add(rs.getInt(1));
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+
+        return mids;
+    }
+
+    public static ArrayList<Integer> getRecommended(Connection sql, int uid, int before) {
+        ArrayList<Integer> mids = new ArrayList<Integer>(20);
+
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            if (before > 0) {
+                stmt = sql.prepareStatement("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");
+                stmt.setInt(1, uid);
+                stmt.setInt(2, before);
+            } else {
+                stmt = sql.prepareStatement("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");
+                stmt.setInt(1, uid);
+            }
+            rs = stmt.executeQuery();
+            rs.beforeFirst();
+            while (rs.next()) {
+                mids.add(rs.getInt(1));
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+
+
+        return mids;
+    }
+
+    public static ArrayList<Integer> getPopular(Connection sql, int before) {
+        ArrayList<Integer> mids = new ArrayList<Integer>(20);
+
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            if (before > 0) {
+                stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE message_id<? AND privacy>0 AND messages.message_id IN (SELECT message_id FROM favorites WHERE user_id=11574) ORDER BY message_id DESC LIMIT 20");
+                stmt.setInt(1, before);
+            } else {
+                stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE privacy>0 AND messages.message_id IN (SELECT message_id FROM favorites WHERE user_id=11574) ORDER BY message_id DESC LIMIT 20");
+            }
+            rs = stmt.executeQuery();
+            rs.beforeFirst();
+            while (rs.next()) {
+                mids.add(rs.getInt(1));
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+        return mids;
+    }
+
+    public static ArrayList<Integer> getPhotos(Connection sql, int before) {
+        ArrayList<Integer> mids = new ArrayList<Integer>(20);
+
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            if (before > 0) {
+                stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE message_id<? AND privacy>0 AND attach IS NOT NULL ORDER BY message_id DESC LIMIT 20");
+                stmt.setInt(1, before);
+            } else {
+                stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE privacy>0 AND attach IS NOT NULL ORDER BY message_id DESC LIMIT 20");
+            }
+            rs = stmt.executeQuery();
+            rs.beforeFirst();
+            while (rs.next()) {
+                mids.add(rs.getInt(1));
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+        return mids;
+    }
+
+    public static ArrayList<Integer> getSearch(Connection sql, Connection sqlSearch, String search, int before) {
+        ArrayList<Integer> mids0 = new ArrayList<Integer>(20);
+
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            if (before > 0) {
+                stmt = sqlSearch.prepareStatement("SELECT @id AS message_id FROM messages WHERE MATCH(?) AND @id<? ORDER BY id DESC LIMIT 20");
+                stmt.setString(1, search);
+                stmt.setInt(2, before);
+            } else {
+                stmt = sqlSearch.prepareStatement("SELECT @id AS message_id FROM messages WHERE MATCH(?) ORDER BY id DESC LIMIT 20");
+                stmt.setString(1, search);
+            }
+            rs = stmt.executeQuery();
+            rs.beforeFirst();
+            while (rs.next()) {
+                mids0.add(rs.getInt(1));
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+
+        ArrayList<Integer> mids = new ArrayList<Integer>(20);
+        if (mids0.size() > 0) {
+            try {
+                stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE message_id IN (" + Utils.convertArray2String(mids0) + ") AND privacy>0 ORDER BY message_id DESC");
+                rs = stmt.executeQuery();
+                rs.beforeFirst();
+                while (rs.next()) {
+                    mids.add(rs.getInt(1));
+                }
+            } catch (SQLException e) {
+                System.err.println(e);
+            } finally {
+                Utils.finishSQL(rs, stmt);
+            }
+        }
+
+        return mids;
+    }
+
+    public static ArrayList<Integer> getUserBlog(Connection sql, int UID, int before) {
+        ArrayList<Integer> mids = new ArrayList<Integer>(20);
+
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            if (before > 0) {
+                stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE user_id=? AND message_id<? AND privacy>0 ORDER BY message_id DESC LIMIT 20");
+                stmt.setInt(1, UID);
+                stmt.setInt(2, before);
+            } else {
+                stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE user_id=? AND privacy>0 ORDER BY message_id DESC LIMIT 20");
+                stmt.setInt(1, UID);
+            }
+            rs = stmt.executeQuery();
+            rs.beforeFirst();
+            while (rs.next()) {
+                mids.add(rs.getInt(1));
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+        return mids;
+    }
+
+    public static ArrayList<Integer> getUserTag(Connection sql, int UID, int TID, int before) {
+        ArrayList<Integer> mids = new ArrayList<Integer>(20);
+
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            if (before > 0) {
+                stmt = sql.prepareStatement("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>0 ORDER BY messages.message_id DESC LIMIT 20");
+                stmt.setInt(1, UID);
+                stmt.setInt(2, TID);
+                stmt.setInt(3, before);
+            } else {
+                stmt = sql.prepareStatement("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>0 ORDER BY messages.message_id DESC LIMIT 20");
+                stmt.setInt(1, UID);
+                stmt.setInt(2, TID);
+            }
+            rs = stmt.executeQuery();
+            rs.beforeFirst();
+            while (rs.next()) {
+                mids.add(rs.getInt(1));
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+        return mids;
+    }
+
+    public static ArrayList<Integer> getUserRecommendations(Connection sql, int UID, int before) {
+        ArrayList<Integer> mids = new ArrayList<Integer>(20);
+
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            if (before > 0) {
+                stmt = sql.prepareStatement("SELECT message_id FROM favorites WHERE user_id=? AND message_id<? ORDER BY message_id DESC LIMIT 20");
+                stmt.setInt(1, UID);
+                stmt.setInt(2, before);
+            } else {
+                stmt = sql.prepareStatement("SELECT message_id FROM favorites WHERE user_id=? ORDER BY message_id DESC LIMIT 20");
+                stmt.setInt(1, UID);
+            }
+            rs = stmt.executeQuery();
+            rs.beforeFirst();
+            while (rs.next()) {
+                mids.add(rs.getInt(1));
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+        return mids;
+    }
+
+    public static ArrayList<Integer> getUserPhotos(Connection sql, int UID, int before) {
+        ArrayList<Integer> mids = new ArrayList<Integer>(20);
+
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            if (before > 0) {
+                stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE user_id=? AND message_id<? AND privacy>0 AND attach IS NOT NULL ORDER BY message_id DESC LIMIT 20");
+                stmt.setInt(1, UID);
+                stmt.setInt(2, before);
+            } else {
+                stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE user_id=? AND privacy>0 AND attach IS NOT NULL ORDER BY message_id DESC LIMIT 20");
+                stmt.setInt(1, UID);
+            }
+            rs = stmt.executeQuery();
+            rs.beforeFirst();
+            while (rs.next()) {
+                mids.add(rs.getInt(1));
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+        return mids;
+    }
+
+    public static ArrayList<Integer> getUserSearch(Connection sql, Connection sqlSearch, int UID, String search, int before) {
+        ArrayList<Integer> mids0 = new ArrayList<Integer>(20);
+
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            if (before > 0) {
+                stmt = sqlSearch.prepareStatement("SELECT @id AS message_id FROM messages WHERE user_id=? AND MATCH(?) AND @id<? ORDER BY id DESC LIMIT 20");
+                stmt.setInt(1, UID);
+                stmt.setString(2, search);
+                stmt.setInt(3, before);
+            } else {
+                stmt = sqlSearch.prepareStatement("SELECT @id AS message_id FROM messages WHERE user_id=? AND MATCH(?) ORDER BY id DESC LIMIT 20");
+                stmt.setInt(1, UID);
+                stmt.setString(2, search);
+            }
+            rs = stmt.executeQuery();
+            rs.beforeFirst();
+            while (rs.next()) {
+                mids0.add(rs.getInt(1));
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+
+        ArrayList<Integer> mids = new ArrayList<Integer>(20);
+        if (mids0.size() > 0) {
+            try {
+                stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE message_id IN (" + Utils.convertArray2String(mids0) + ") AND privacy>0 ORDER BY message_id DESC");
+                rs = stmt.executeQuery();
+                rs.beforeFirst();
+                while (rs.next()) {
+                    mids.add(rs.getInt(1));
+                }
+            } catch (SQLException e) {
+                System.err.println(e);
+            } finally {
+                Utils.finishSQL(rs, stmt);
+            }
+        }
+
+        return mids;
+    }
+}
diff --git a/src/com/juick/server/PlacesQueries.java b/src/com/juick/server/PlacesQueries.java
new file mode 100644
index 00000000..d61c89c3
--- /dev/null
+++ b/src/com/juick/server/PlacesQueries.java
@@ -0,0 +1,55 @@
+/*
+ * 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.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+/**
+ *
+ * @author Ugnich Anton
+ */
+public class PlacesQueries {
+
+    public static com.juick.Place getPlace(Connection sql, int pid) {
+        com.juick.Place place = null;
+
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            stmt = sql.prepareStatement("SELECT lat,lon,name FROM places WHERE place_id=?");
+            stmt.setInt(1, pid);
+            rs = stmt.executeQuery();
+            if (rs.first()) {
+                place = new com.juick.Place();
+                place.pid = pid;
+                place.lat = rs.getDouble(1);
+                place.lon = rs.getDouble(2);
+                place.name = rs.getString(3);
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+
+        return place;
+    }
+}
diff --git a/src/com/juick/server/TagQueries.java b/src/com/juick/server/TagQueries.java
new file mode 100644
index 00000000..8cb7ee1a
--- /dev/null
+++ b/src/com/juick/server/TagQueries.java
@@ -0,0 +1,68 @@
+/*
+ * 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.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+
+/**
+ *
+ * @author Ugnich Anton
+ */
+public class TagQueries {
+
+    public static int getTagID(Connection sql, String tag, boolean autoCreate) {
+        int tid = 0;
+
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            stmt = sql.prepareStatement("SELECT tag_id FROM tags WHERE name=?");
+            stmt.setString(1, tag);
+            rs = stmt.executeQuery();
+            if (rs.first()) {
+                tid = rs.getInt(1);
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+
+        if (tid == 0 && autoCreate) {
+            try {
+                stmt = sql.prepareStatement("INSERT INTO tags(name) VALUES (?)", Statement.RETURN_GENERATED_KEYS);
+                stmt.setString(1, tag);
+                stmt.executeUpdate();
+                rs = stmt.getGeneratedKeys();
+                if (rs.first()) {
+                    tid = rs.getInt(1);
+                }
+            } catch (SQLException e) {
+                System.err.println(e);
+            } finally {
+                Utils.finishSQL(rs, stmt);
+            }
+        }
+
+        return tid;
+    }
+}
diff --git a/src/com/juick/server/UserQueries.java b/src/com/juick/server/UserQueries.java
new file mode 100644
index 00000000..97cae91f
--- /dev/null
+++ b/src/com/juick/server/UserQueries.java
@@ -0,0 +1,218 @@
+/*
+ * 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.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.Random;
+
+/**
+ *
+ * @author Ugnich Anton
+ */
+public class UserQueries {
+
+    static final String ABCDEF = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+
+    public static com.juick.User getUserByNick(Connection sql, String username) {
+        com.juick.User user = null;
+
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            stmt = sql.prepareStatement("SELECT id,nick FROM users WHERE nick=?");
+            stmt.setString(1, username);
+            rs = stmt.executeQuery();
+            if (rs.first()) {
+                user = new com.juick.User();
+                user.UID = rs.getInt(1);
+                user.UName = rs.getString(2);
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+        return user;
+    }
+
+    public static String getJIDbyUID(Connection sql, int UID) {
+        String jid = null;
+
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            stmt = sql.prepareStatement("SELECT jid FROM jids WHERE user_id=? AND active=1");
+            stmt.setInt(1, UID);
+            rs = stmt.executeQuery();
+            if (rs.first()) {
+                jid = rs.getString(1);
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+
+        return jid;
+    }
+
+    public static int getUIDbyHash(Connection sql, String hash) {
+        int UID = 0;
+
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            stmt = sql.prepareStatement("SELECT user_id FROM logins WHERE hash=?");
+            stmt.setString(1, hash);
+            rs = stmt.executeQuery();
+            if (rs.first()) {
+                UID = rs.getInt(1);
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+        return UID;
+    }
+
+    public static com.juick.User getUserByHash(Connection sql, String hash) {
+        com.juick.User user = null;
+
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            stmt = sql.prepareStatement("SELECT logins.user_id,users.nick FROM logins INNER JOIN users ON logins.user_id=users.id WHERE logins.hash=?");
+            stmt.setString(1, hash);
+            rs = stmt.executeQuery();
+            if (rs.first()) {
+                user = new com.juick.User();
+                user.UID = rs.getInt(1);
+                user.UName = rs.getString(2);
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+        return user;
+    }
+
+    public static String getHashByUID(Connection sql, int uid) {
+        String hash = null;
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            stmt = sql.prepareStatement("SELECT logins.hash FROM logins WHERE user_id=?");
+            stmt.setInt(1, uid);
+            rs = stmt.executeQuery();
+            if (rs.first()) {
+                hash = rs.getString(2);
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+
+        if (hash == null) {
+            hash = generateHash(16);
+            try {
+                stmt = sql.prepareStatement("INSERT INTO logins(user_id,hash) VALUES (?,?)");
+                stmt.setInt(1, uid);
+                stmt.setString(2, hash);
+                stmt.executeUpdate();
+            } catch (SQLException e) {
+                System.err.println(e);
+            } finally {
+                Utils.finishSQL(null, 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 int checkPassword(Connection sql, String username, String password) {
+        int uid = 0;
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            stmt = sql.prepareStatement("SELECT id,passw FROM users WHERE nick=?");
+            stmt.setString(1, username);
+            rs = stmt.executeQuery();
+            if (rs.first()) {
+                if (password.equals(rs.getString(2))) {
+                    uid = rs.getInt(1);
+                } else {
+                    uid = -1;
+                }
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+        return uid;
+    }
+
+    public static int getUserOptionInt(Connection sql, int uid, String option, int defaultValue) {
+        int ret = defaultValue;
+
+        PreparedStatement stmt = null;
+        ResultSet rs = null;
+        try {
+            stmt = sql.prepareStatement("SELECT " + option + " FROM useroptions WHERE user_id=?");
+            stmt.setInt(1, uid);
+            rs = stmt.executeQuery();
+            if (rs.first()) {
+                ret = rs.getInt(1);
+            }
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(rs, stmt);
+        }
+        return ret;
+    }
+
+    public static void setUserOptionInt(Connection sql, int uid, String option, int value) {
+        PreparedStatement stmt = null;
+        try {
+            stmt = sql.prepareStatement("UPDATE useroptions SET " + option + "=? WHERE user_id=?");
+            stmt.setInt(1, value);
+            stmt.setInt(2, uid);
+            stmt.executeUpdate();
+        } catch (SQLException e) {
+            System.err.println(e);
+        } finally {
+            Utils.finishSQL(null, stmt);
+        }
+    }
+}
diff --git a/src/com/juick/server/Utils.java b/src/com/juick/server/Utils.java
new file mode 100644
index 00000000..997c4f32
--- /dev/null
+++ b/src/com/juick/server/Utils.java
@@ -0,0 +1,56 @@
+/*
+ * 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.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.util.ArrayList;
+
+/**
+ *
+ * @author Ugnich Anton
+ */
+public class Utils {
+
+    public static String convertArray2String(ArrayList<Integer> mids) {
+        String q = "";
+        for (int i = 0; i < mids.size(); i++) {
+            if (i > 0) {
+                q += ",";
+            }
+            q += mids.get(i);
+        }
+        return q;
+    }
+
+    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) {
+            }
+        }
+    }
+}
-- 
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