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https://github.com/fabianonline/telegram_backup.git
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Download-stuff. Files.
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@ -64,10 +64,11 @@ public class CommandLineController {
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System.out.println("Next time, please run this tool with '--account " + user.getUser().getPhone() + " to use this account.");
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}
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System.out.println("You are now signed in as " + user.getUserString());
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System.out.println("You are logged in as " + user.getUserString());
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DownloadManager d = new DownloadManager(user);
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DownloadManager d = new DownloadManager(user, client);
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d.downloadMessages();
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d.downloadMedia();
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} catch (RpcErrorException e) {
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e.printStackTrace();
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} catch (IOException e) {
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@ -14,5 +14,8 @@ class Config {
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public static final String FILE_NAME_AUTH_KEY = "auth.dat";
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public static final String FILE_NAME_DC = "dc.dat";
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public static final String FILE_NAME_DB = "database.sqlite";
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public static final String FILE_FILES_BASE = "files";
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public static final int FILE_DOWNLOAD_BLOCK_SIZE = 1024*1024;
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}
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@ -1,13 +1,28 @@
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package de.fabianonline.telegram_backup;
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import com.github.badoualy.telegram.tl.api.TLMessage;
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import com.github.badoualy.telegram.tl.api.TLMessageEmpty;
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import com.github.badoualy.telegram.tl.api.TLMessageService;
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import com.github.badoualy.telegram.tl.core.TLVector;
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import com.github.badoualy.telegram.tl.api.TLAbsMessage;
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import com.github.badoualy.telegram.tl.api.TLMessageMediaEmpty;
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import com.github.badoualy.telegram.tl.api.TLAbsPeer;
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import com.github.badoualy.telegram.tl.api.TLPeerUser;
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import com.github.badoualy.telegram.tl.api.TLPeerChat;
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import com.github.badoualy.telegram.tl.api.TLPeerChannel;
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import com.github.badoualy.telegram.tl.api.TLApiContext;
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import java.sql.Connection;
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import java.sql.DriverManager;
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import java.sql.Statement;
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import java.sql.SQLException;
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import java.sql.ResultSet;
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import java.sql.PreparedStatement;
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import java.sql.Types;
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import java.io.File;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.util.LinkedList;
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import de.fabianonline.telegram_backup.UserManager;
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@ -15,8 +30,10 @@ import de.fabianonline.telegram_backup.UserManager;
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class Database {
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private Connection conn;
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private Statement stmt;
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private UserManager user_manager;
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public Database(UserManager user) {
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public Database(UserManager user_manager) {
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this.user_manager = user_manager;
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try {
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Class.forName("org.sqlite.JDBC");
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} catch(ClassNotFoundException e) {
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@ -26,7 +43,7 @@ class Database {
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String path = "jdbc:sqlite:" +
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Config.FILE_BASE +
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File.separatorChar +
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user.getUser().getPhone() +
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user_manager.getUser().getPhone() +
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File.separatorChar +
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Config.FILE_NAME_DB;
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@ -87,11 +104,103 @@ class Database {
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}
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}
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public void save(TLMessage msg) {
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/*BufferArrayOutputStream stream = new BufferArrayOutputStream();
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msg.serializeBody(stream);
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bytes[] = stream.toByteArray();
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PreparedStatement ps = conn.prepareStatement(query);
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ps.setBytes(x, bytes[]);*/
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public int getTopMessageID() {
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try {
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ResultSet rs = stmt.executeQuery("SELECT MAX(id) FROM messages");
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rs.next();
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return rs.getInt(1);
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} catch (SQLException e) {
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return 0;
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}
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}
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public void save(TLVector<TLAbsMessage> all) {
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try {
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PreparedStatement ps = conn.prepareStatement(
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"INSERT INTO messages " +
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"(id, dialog_id, from_id, type, text, time, has_media, data) " +
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"VALUES " +
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"(?, ?, ?, ?, ?, ?, ?, ?)");
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for (TLAbsMessage abs : all) {
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if (abs instanceof TLMessage) {
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TLMessage msg = (TLMessage) abs;
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ps.setInt(1, msg.getId());
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TLAbsPeer peer = msg.getToId();
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if (peer instanceof TLPeerChat) {
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ps.setInt(2, ((TLPeerChat)peer).getChatId());
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ps.setString(4, "chat");
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} else if (peer instanceof TLPeerChannel) {
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ps.setInt(2, ((TLPeerChannel)peer).getChannelId());
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ps.setString(4, "channel");
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} else if (peer instanceof TLPeerUser) {
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int id = ((TLPeerUser)peer).getUserId();
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if (id==this.user_manager.getUser().getId()) {
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id = msg.getFromId();
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}
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ps.setInt(2, id);
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ps.setString(4, "user");
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} else {
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throw new RuntimeException("Unexpected Peer type: " + peer.getClass().getName());
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}
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ps.setInt(3, msg.getFromId());
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String text = msg.getMessage();
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if ((text==null || text.equals("")) && msg.getMedia()!=null) {
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if (msg.getMedia() instanceof TLMessageMediaDocument) {
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text = ((TLMessageMediaDocument)msg.getMedia()).getCaption();
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} else if (msg.getMedia() instanceof TLMessageMediaPhoto) {
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text = ((TLMessageMediaPhoto)msg.getMedia()).getCaption();
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}
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}
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ps.setString(5, text);
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ps.setString(6, ""+msg.getDate());
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ps.setBoolean(7, msg.getMedia() != null);
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ByteArrayOutputStream stream = new ByteArrayOutputStream();
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msg.serializeBody(stream);
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ps.setBytes(8, stream.toByteArray());
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ps.addBatch();
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} else if (abs instanceof TLMessageService) {
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// Ignore service messages.
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} else if (abs instanceof TLMessageEmpty) {
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TLMessageEmpty msg = (TLMessageEmpty) abs;
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ps.setInt(1, msg.getId());
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ps.setNull(2, Types.INTEGER);
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ps.setNull(3, Types.INTEGER);
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ps.setNull(4, Types.VARCHAR);
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ps.setNull(5, Types.VARCHAR);
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ps.setNull(6, Types.INTEGER);
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ps.setNull(7, Types.BOOLEAN);
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ps.setNull(8, Types.BLOB);
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ps.addBatch();
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} else {
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throw new RuntimeException("Unexpected Message type: " + abs.getClass().getName());
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}
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}
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conn.setAutoCommit(false);
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ps.executeBatch();
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ps.clearBatch();
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conn.commit();
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conn.setAutoCommit(true);
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} catch (Exception e) {
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e.printStackTrace();
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throw new RuntimeException("Exception shown above happened.");
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}
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}
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public LinkedList<TLMessage> getMessagesWithMedia() {
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try {
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LinkedList<TLMessage> list = new LinkedList<TLMessage>();
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ResultSet rs = stmt.executeQuery("SELECT data FROM messages WHERE has_media=1");
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while (rs.next()) {
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ByteArrayInputStream stream = new ByteArrayInputStream(rs.getBytes(1));
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TLMessage msg = new TLMessage();
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msg.deserializeBody(stream, TLApiContext.getInstance());
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list.add(msg);
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}
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rs.close();
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return list;
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} catch (Exception e) {
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e.printStackTrace();
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throw new RuntimeException("Exception occured. See above.");
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}
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}
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}
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@ -3,16 +3,140 @@ package de.fabianonline.telegram_backup;
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import de.fabianonline.telegram_backup.UserManager;
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import de.fabianonline.telegram_backup.Database;
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import com.github.badoualy.telegram.api.TelegramClient;
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import com.github.badoualy.telegram.tl.core.TLIntVector;
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import com.github.badoualy.telegram.tl.api.messages.TLAbsMessages;
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import com.github.badoualy.telegram.tl.api.messages.TLAbsDialogs;
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import com.github.badoualy.telegram.tl.api.*;
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import com.github.badoualy.telegram.tl.api.upload.TLFile;
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import com.github.badoualy.telegram.tl.exception.RpcErrorException;
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import java.io.IOException;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.util.ArrayList;
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import java.util.LinkedList;
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class DownloadManager {
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UserManager user;
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TelegramClient client;
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Database db;
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public DownloadManager(UserManager u) {
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public DownloadManager(UserManager u, TelegramClient c) {
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this.user = u;
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this.client = c;
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this.db = new Database(u);
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}
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public void downloadMessages() {
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System.out.println("downloading messages... not.");
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public void downloadMessages() throws RpcErrorException, IOException {
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System.out.print("Downloading dialogs... ");
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TLAbsDialogs dialogs = client.messagesGetDialogs(
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0,
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0,
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new TLInputPeerEmpty(),
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100);
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System.out.println("Got " + dialogs.getDialogs().size() + " dialogs.");
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int max_message_id = -1;
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for(TLAbsDialog dialog : dialogs.getDialogs()) {
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max_message_id = Math.max(max_message_id, dialog.getTopMessage());
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}
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System.out.println("Top message ID is " + max_message_id);
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int max_database_id = db.getTopMessageID();
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System.out.println("Top message ID in database is " + max_database_id);
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int start_id = max_database_id + 1;
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int current_start_id = start_id;
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int end_id = max_message_id;
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if (start_id > end_id) {
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System.out.println("No new messages to download.");
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return;
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}
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while (current_start_id <= end_id) {
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int my_end_id = Math.min(current_start_id+99, end_id);
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ArrayList<Integer> a = makeIdList(current_start_id, my_end_id);
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TLIntVector ids = new TLIntVector();
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ids.addAll(a);
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my_end_id = ids.get(ids.size()-1);
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System.out.println("Fetching messages from " + ids.get(0) + " to " + my_end_id + "...");
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current_start_id = my_end_id + 1;
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TLAbsMessages response = client.messagesGetMessages(ids);
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db.save(response.getMessages());
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try {
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Thread.sleep(750);
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} catch (InterruptedException e) {}
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}
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}
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public void downloadMedia() throws RpcErrorException, IOException {
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LinkedList<TLMessage> messages = this.db.getMessagesWithMedia();
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for (TLMessage msg : messages) {
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TLAbsMessageMedia media = msg.getMedia();
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if (media instanceof TLMessageMediaPhoto) {
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TLMessageMediaPhoto p = (TLMessageMediaPhoto) media;
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if (p.getPhoto() instanceof TLPhoto) {
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TLPhoto photo = (TLPhoto) p.getPhoto();
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TLPhotoSize size = null;
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for (TLAbsPhotoSize s : photo.getSizes()) {
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if (s instanceof TLPhotoSize) {
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TLPhotoSize s2 = (TLPhotoSize) s;
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if (size == null || (s2.getW()>size.getW() && s2.getH()>size.getH())) {
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size = s2;
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}
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}
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}
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if (size==null) {
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throw new RuntimeException("Could not find a size for a photo.");
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}
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if (size.getLocation() instanceof TLFileLocation) {
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this.downloadPhoto(msg.getId(), (TLFileLocation)size.getLocation());
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return;
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}
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} else {
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throw new RuntimeException("Got an unexpected " + p.getPhoto().getClass().getName());
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}
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}
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}
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}
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private ArrayList<Integer> makeIdList(int start, int end) {
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if (start > end) throw new RuntimeException("start and end reversed");
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ArrayList<Integer> a = new ArrayList<Integer>(end - start + 1);
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for (int i=0; i<=end-start; i++) a.add(start+i);
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return a;
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}
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private void downloadPhoto(int msgId, TLFileLocation src) throws RpcErrorException, IOException {
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TLInputFileLocation loc = new TLInputFileLocation();
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loc.setVolumeId(src.getVolumeId());
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loc.setLocalId(src.getLocalId());
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loc.setSecret(src.getSecret());
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this.downloadFile(this.makeFilename(msgId, "jpg"), loc);
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}
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private String makeFilename(int id, String ext) {
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String path = Config.FILE_BASE +
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File.separatorChar +
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Config.FILE_FILES_BASE +
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File.separatorChar;
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new File(path).mkdirs();
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if (ext!=null) return path + id + "." + ext;
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return path + id + ".dat";
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}
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private void downloadFile(String target, TLInputFileLocation loc) throws RpcErrorException, IOException {
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FileOutputStream fos = new FileOutputStream(target);
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int offset = 0;
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TLFile response;
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do {
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response = this.client.uploadGetFile(loc, offset, Config.FILE_DOWNLOAD_BLOCK_SIZE);
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offset += Config.FILE_DOWNLOAD_BLOCK_SIZE;
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fos.write(response.getBytes().getData());
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} while(response.getBytes().getLength() == Config.FILE_DOWNLOAD_BLOCK_SIZE);
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fos.close();
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}
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}
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