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467 lines (437 loc) · 12.9 KB
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package javaforce.utils;
import java.net.*;
import java.io.*;
import java.util.*;
import javaforce.*;
import javaforce.service.*;
import javaforce.webui.tasks.*;
import static javaforce.service.FileSyncServer.*;
/** FileSync client.
*
* Sync folder to remote server.
*
* Connects to javaforce.service.FileSyncServer
*
* Supported:
* - recursive sync
*
* Not supported:
* - mirror sync may be supported in the future
*
* @author pquiring
*/
public class FileSync {
public static boolean debug = false;
public static final int FLAG_DEFAULT = 0x00;
public static final int FLAG_RECURSIVE = 0x01;
public static final int FLAG_MIRROR = 0x02;
private static final int FLAG_SUB_FOLDER = 0x8000;
private Socket s;
private InputStream is;
private OutputStream os;
private Status status;
public boolean connect(String server) {
return connect(server, KeyMgmt.getDefaultClient());
}
public boolean connect(String server, KeyMgmt keys) {
try {
s = new Socket(server, FileSyncServer.port);
s = JF.connectSSL(s, keys);
is = s.getInputStream();
os = s.getOutputStream();
return true;
} catch (Exception e) {
JFLog.log(e);
s = null;
is = null;
os = null;
return false;
}
}
public boolean disconnect() {
if (s == null) return true;
try {s.close();} catch (Exception e) {}
s = null;
is = null;
os = null;
return true;
}
public boolean login(String passwd) {
int strlen = passwd.length();
int len = 4 + 4 + strlen;
reset();
write(REQ_AUTH);
write(len);
write(FileSyncServer.VERSION);
write(AUTH_PASSWD);
write(passwd.getBytes(), 0, strlen);
try {
if (debug) JFLog.log(String.format("c.cmd=%x len=%d (login)", req[0], req_len-5));
os.write(req, 0, req_len);
return read_reply() == RET_OKAY;
} catch (Exception e) {
JFLog.log(e);
return false;
}
}
public void setStatus(Status status) {
this.status = status;
}
public boolean sync(String src_folder, String dest_folder, int flags) {
return sync(src_folder, null, dest_folder, flags);
}
public boolean sync(String src_folder, String[] src_files, String dest_folder, int flags) {
if ((flags & FLAG_MIRROR) != 0) {
JFLog.log("FileSync : mirror not supported");
return false;
}
boolean recursive = (flags & FLAG_RECURSIVE) != 0;
boolean sub_folder = (flags & FLAG_SUB_FOLDER) != 0;
//using a random seed will ensure a double md5 failure is impossible
random.setSeed(System.currentTimeMillis());
random.nextBytes(seed);
File src_folder_file = new File(src_folder);
if (src_files == null) {
src_files = src_folder_file.list();
}
if (!folder_open(dest_folder)) {
if (!folder_create(dest_folder)) {
JFLog.log("FileSync : unable to create folder:" + dest_folder);
return false;
}
}
int todo = src_files.length;
int done = 0;
for(String filename : src_files) {
done++;
if (debug) JFLog.log("file_sync:" + filename);
if (filename.startsWith(".")) continue;
File file = new File(src_folder + "/" + filename);
if (!file.exists()) {
if (debug) JFLog.log("File not found:" + filename);
continue;
}
if (file.isDirectory()) {
if (!recursive) continue;
if (!sync(src_folder + "/" + filename, null, dest_folder + "/" + filename, flags | FLAG_SUB_FOLDER)) {
return false;
}
if (!folder_open(dest_folder)) {
return false;
}
} else {
if (!file_sync(src_folder, filename, file)) {
return false;
}
}
if (status != null && !sub_folder) {
status.setPercent((done * 100) / todo);
}
}
return true;
}
private long file_date;
private long file_size;
private byte[] req = new byte[max_data_len + 16];
private int req_len = 0;
private long s_file_date;
private long s_file_size;
private byte[] reply = new byte[max_data_len + 16];
private int reply_len = 0;
private int reply_offset = 0;
private MD5 md5 = new MD5();
private Random random = new Random();
private byte[] seed = new byte[16];
private byte[] file_data = new byte[max_data_len];
private long file_offset;
private void reset() {
req_len = 0;
}
private boolean write(byte b) {
req[req_len++] = b;
return true;
}
private byte[] buf = new byte[8];
private boolean write(int len) {
LE.setuint32(buf, 0, len);
return write(buf, 0, 4);
}
private boolean write(long len) {
LE.setuint64(buf, 0, len);
return write(buf, 0, 8);
}
private boolean write(byte[] buf, int offset, int length) {
if (req_len + length > max_data_len) return false;
System.arraycopy(buf, offset, req, req_len, length);
req_len += length;
return true;
}
private byte readByte() {
if (reply_offset + 1 > reply_len) return -1;
return reply[reply_offset++];
}
private short readShort() {
if (reply_offset + 2 > reply_len) return -1;
short value = (short)LE.getuint16(reply, reply_offset);
reply_offset += 2;
return value;
}
private int readInt() {
if (reply_offset + 4 > reply_len) return -1;
int value = LE.getuint32(reply, reply_offset);
reply_offset += 4;
return value;
}
private long readLong() {
if (reply_offset + 8 > reply_len) return -1;
long value = LE.getuint64(reply, reply_offset);
reply_offset += 8;
return value;
}
private boolean readBytes(byte[] out, int off, int len) {
if (reply_offset + len > reply_len) return false;
System.arraycopy(reply, reply_offset, out, off, len);
reply_offset += len;
return true;
}
/* returns cmd */
private int read_reply() throws Exception {
int cmd = is.read();
if (cmd == -1) throw new Exception("read error");
if (is.readNBytes(reply, 0, 4) != 4) throw new Exception("read error");
reply_len = LE.getuint32(reply, 0);
if (debug) JFLog.log(String.format("s.cmd=%x len=%d", cmd, reply_len));
if (reply_len > 0) {
if (is.readNBytes(reply, 0, reply_len) != reply_len) throw new Exception("read error");
}
reply_offset = 0;
return cmd;
}
private boolean file_sync(String folder, String filename, File file) {
file_date = file.lastModified();
file_size = file.length();
return file_open(folder, filename);
}
private boolean file_open(String folder, String filename) {
//date,size,filename
int strlen = filename.length();
int len = 8 + 8 + strlen;
reset();
write(REQ_FILE_OPEN);
write(len);
write(file_date);
write(file_size);
write(filename.getBytes(), 0, strlen);
try {
if (debug) JFLog.log(String.format("c.cmd=%x len=%d (file_open:%s)", req[0], req_len-5, filename));
os.write(req, 0, req_len);
int cmd = read_reply();
switch (cmd) {
case RET_NO_EXIST: {
//reply = null
s_file_date = 0;
s_file_size = 0;
return file_sync_blocks(folder, filename);
}
case RET_CHANGE: {
//reply = server side date,size
if (reply_len != 16) throw new Exception("bad reply");
s_file_date = readLong();
s_file_size = readLong();
return file_sync_blocks(folder, filename);
}
case RET_NO_CHANGE: {
return true;
}
default: {
throw new Exception(String.format("file_open:unknown reply:%x", cmd));
}
}
} catch (Exception e) {
JFLog.log(e);
return false;
}
}
private boolean file_sync_blocks(String folder, String filename) {
try {
RandomAccessFile file_io = new RandomAccessFile(folder + "/" + filename, "r");
file_offset = 0;
while (file_offset < file_size) {
int block_size = 1024*1024; //1MB
if (file_offset + block_size > file_size) {
block_size = (int)(file_size - file_offset);
}
if (file_offset >= s_file_size) {
//just send block
file_io.readFully(file_data, 0, block_size);
if (file_block_data(block_size) != RET_OKAY) return false;
file_offset += block_size;
continue;
}
if (file_offset + block_size > s_file_size) {
//partial block
block_size = (int)(s_file_size - file_offset);
}
file_io.readFully(file_data, 0, block_size);
md5.init();
md5.add(seed, 0, 16);
md5.add(file_data, 0, block_size);
int cmd = file_block_hash(block_size, md5.done());
switch (cmd) {
case RET_NO_CHANGE: {
break;
}
case RET_CHANGE: {
if (file_block_data(block_size) != RET_OKAY) return false;
break;
}
default: {
throw new Exception(String.format("unknown return cmd:%x", cmd));
}
}
file_offset += block_size;
}
file_io.close();
if (s_file_size > file_size) {
//truncate file
if (file_truncate() != RET_OKAY) return false;
}
return true;
} catch (Exception e) {
JFLog.log(e);
return false;
}
}
/** Send file hash, returns server response cmd. */
private int file_block_hash(int block_len, byte[] hash) throws Exception {
if (debug) FileSyncServer.print_hash(hash);
reset();
//hash_type(4)file_offset(8),block_len(4),hash(16),seed(16)
int len = 4 + 8 + 4 + 16 + 16;
write(REQ_FILE_BLOCK_HASH);
write(len);
write(HASH_MD5_SEED);
write(file_offset);
write(block_len);
write(hash, 0, 16);
write(seed, 0, 16);
if (debug) JFLog.log(String.format("block_hash:%d %d %d", HASH_MD5_SEED, file_offset, block_len));
if (debug) JFLog.log(String.format("c.cmd=%x len=%d (file_block_hash)", req[0], req_len-5));
os.write(req, 0, req_len);
int cmd = read_reply();
return cmd;
}
/** Send file data block. */
private int file_block_data(int block_len) throws Exception {
reset();
//offset(8),data(?)
int len = 8 + block_len;
write(REQ_FILE_BLOCK_DATA);
write(len);
write(file_offset);
write(file_data, 0, block_len);
if (debug) JFLog.log(String.format("c.cmd=%x len=%d (file_block_data)", req[0], req_len-5));
os.write(req, 0, req_len);
int cmd = read_reply();
if (cmd != RET_OKAY) {
JFLog.log(String.format("FileSync : file_block_data() failed : cmd=%x", cmd));
}
return cmd;
}
private int file_truncate() throws Exception {
reset();
//size(8)
int len = 8;
write(REQ_FILE_TRUNCATE);
write(len);
write(file_size);
if (debug) JFLog.log(String.format("c.cmd=%x len=%d (file_trunate)", req[0], req_len-5));
os.write(req, 0, req_len);
int cmd = read_reply();
return cmd;
}
private boolean folder_open(String folder) {
int strlen = folder.length();
reset();
//folder(?)
int len = strlen;
write(REQ_FOLDER_OPEN);
write(len);
write(folder.getBytes(), 0, strlen);
try {
if (debug) JFLog.log(String.format("c.cmd=%x len=%d (folder_open:%s)", req[0], req_len-5, folder));
os.write(req, 0, req_len);
int cmd = read_reply();
if (cmd != RET_OKAY) {
JFLog.log("FileSync : unable to open folder:" + folder);
}
return cmd == RET_OKAY;
} catch (Exception e) {
JFLog.log(e);
return false;
}
}
private boolean folder_create(String folder) {
int strlen = folder.length();
reset();
//folder(?)
int len = strlen;
write(REQ_FOLDER_CREATE);
write(len);
write(folder.getBytes(), 0, strlen);
try {
if (debug) JFLog.log(String.format("c.cmd=%x len=%d (folder_create:%s)", req[0], req_len-5, folder));
os.write(req, 0, req_len);
int cmd = read_reply();
return cmd == RET_OKAY;
} catch (Exception e) {
JFLog.log(e);
return false;
}
}
public static void main(String[] args) {
if (args.length < 4) {
System.out.println("Usage:jfsync src_folder server password dest_folder [-r]");
return;
}
String src_folder = args[0];
String server = args[1];
String password = args[2];
String dst_folder = args[3];
int flags = FLAG_DEFAULT;
for(int i=4;i<args.length;i++) {
String arg = args[i];
String key, value;
int idx = arg.indexOf('=');
if (idx == -1) {
key = arg;
value = "";
} else {
key = arg.substring(0, idx);
value = arg.substring(idx + 1);
}
switch (key) {
case "-r": {
flags |= FLAG_RECURSIVE;
break;
}
}
}
FileSync sync = new FileSync();
if (!sync.connect(server)) {
JFLog.log("Error:connect failed!");
return;
}
if (!sync.login(password)) {
JFLog.log("Error:login failed!");
return;
}
if (debug) JFLog.log("Login granted");
if (!sync.sync(src_folder, dst_folder, flags)) {
JFLog.log("sync failed!");
System.exit(1);
} else {
JFLog.log("sync complete");
}
}
}