Mercurial Hosting > luan
annotate src/goodjava/lucene/backup/BackupServer.java @ 1762:7d2297155ee3
minor
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Fri, 19 May 2023 18:08:46 -0600 |
parents | 2dbcc8360a3e |
children |
rev | line source |
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1499 | 1 package goodjava.lucene.backup; |
2 | |
3 import java.io.File; | |
4 import java.io.IOException; | |
5 import java.util.Map; | |
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6 import java.net.InetAddress; |
1499 | 7 import java.net.Socket; |
8 import java.net.ServerSocket; | |
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9 import java.net.UnknownHostException; |
1499 | 10 import java.util.concurrent.Executors; |
1502 | 11 import java.util.concurrent.ExecutorService; |
1509 | 12 import javax.net.ssl.SSLSocket; |
1499 | 13 import javax.net.ssl.SSLServerSocket; |
14 import goodjava.util.SoftCacheMap; | |
1501 | 15 import goodjava.io.IoUtils; |
1499 | 16 import goodjava.rpc.RpcServer; |
17 import goodjava.rpc.RpcCall; | |
1509 | 18 import goodjava.rpc.RpcClient; |
19 import goodjava.rpc.RpcResult; | |
1512 | 20 import goodjava.rpc.Rpc; |
1509 | 21 import goodjava.rpc.RpcException; |
1499 | 22 import goodjava.logging.Logger; |
23 import goodjava.logging.LoggerFactory; | |
24 | |
25 | |
1672 | 26 public final class BackupServer { |
1499 | 27 private static final Logger logger = LoggerFactory.getLogger(BackupServer.class); |
28 | |
1675 | 29 public static int port = 9102; |
1499 | 30 public static String[] cipherSuites = new String[] { |
31 "TLS_DH_anon_WITH_AES_128_GCM_SHA256", | |
32 "TLS_DH_anon_WITH_AES_128_CBC_SHA256", | |
33 "TLS_ECDH_anon_WITH_AES_128_CBC_SHA", | |
34 "TLS_DH_anon_WITH_AES_128_CBC_SHA", | |
35 "TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA", | |
36 "SSL_DH_anon_WITH_3DES_EDE_CBC_SHA", | |
37 "TLS_ECDH_anon_WITH_RC4_128_SHA", | |
38 "SSL_DH_anon_WITH_RC4_128_MD5", | |
39 "SSL_DH_anon_WITH_DES_CBC_SHA", | |
40 "SSL_DH_anon_EXPORT_WITH_DES40_CBC_SHA", | |
41 "SSL_DH_anon_EXPORT_WITH_RC4_40_MD5", | |
42 }; | |
43 | |
44 private final File backupDir; | |
1502 | 45 private static final ExecutorService threadPool = Executors.newCachedThreadPool(); |
1499 | 46 private static final Map<String,Backup> backups = new SoftCacheMap<String,Backup>(); |
47 | |
1501 | 48 public BackupServer(File backupDir) throws IOException { |
1499 | 49 this.backupDir = backupDir; |
1501 | 50 IoUtils.mkdirs(backupDir); |
1499 | 51 } |
52 | |
53 public synchronized void start() throws IOException { | |
54 final ServerSocket ss; | |
55 if( cipherSuites == null ) { | |
56 ss = new ServerSocket(port); | |
57 } else { | |
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58 ss = IoUtils.getSSLServerSocketFactory().createServerSocket(port); |
1499 | 59 ((SSLServerSocket)ss).setEnabledCipherSuites(cipherSuites); |
60 } | |
61 threadPool.execute(new Runnable(){public void run() { | |
62 try { | |
63 while(!threadPool.isShutdown()) { | |
64 final Socket socket = ss.accept(); | |
65 threadPool.execute(new Runnable(){public void run() { | |
66 handle(socket); | |
67 }}); | |
68 } | |
69 } catch(IOException e) { | |
70 logger.error("",e); | |
71 } | |
72 }}); | |
73 logger.info("started server on port "+port); | |
74 } | |
75 | |
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76 private static String getName(RpcServer rpc,Object[] args) { |
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77 String domain = (String)args[0]; |
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78 InetAddress addr; |
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79 try { |
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80 addr = InetAddress.getByName(domain); |
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81 } catch(UnknownHostException e) { |
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82 rpc.write( new RpcException("domain lookup failed") ); |
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83 rpc.close(); |
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84 return null; |
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85 } |
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86 if( !rpc.socket.getInetAddress().equals(addr) ) { |
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87 rpc.write( new RpcException("domain doesn't match client") ); |
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88 rpc.close(); |
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89 return null; |
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90 } |
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91 String name = (String)args[1]; |
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92 return name==null ? domain : domain + "~" + name; |
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93 } |
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94 |
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95 private Backup getBackup(String name) { |
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96 synchronized(backups) { |
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97 Backup backup = backups.get(name); |
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98 if( backup == null ) { |
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99 backup = new Backup( new File(backupDir,name) ); |
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100 backups.put(name,backup); |
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101 } |
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102 return backup; |
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103 } |
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104 } |
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105 |
1499 | 106 private void handle(Socket socket) { |
107 RpcServer rpc = new RpcServer(socket); | |
1674 | 108 Backup backup = null; |
109 while( !rpc.isClosed() ) { | |
1499 | 110 RpcCall call = rpc.read(); |
1674 | 111 if( call == null ) |
112 break; | |
113 if( call.cmd.equals("exists") ) { | |
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114 String name = getName(rpc,call.args); |
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115 if( name==null ) return; |
1674 | 116 rpc.write( new RpcResult(new Object[]{new File(backupDir,name).exists()}) ); |
117 } else if( call.cmd.equals("login") ) { | |
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118 String name = getName(rpc,call.args); |
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119 if( name==null ) return; |
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120 backup = getBackup(name); |
1674 | 121 rpc.write(Rpc.OK); |
122 } else if( backup != null ) { | |
123 backup.handle(rpc,call); | |
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124 } else if( call.cmd.equals("copy") ) { |
1698 | 125 try { |
126 if( !IoUtils.getInetAddresses().contains(rpc.socket.getInetAddress()) ) { | |
127 rpc.write( new RpcException("only localhost allowed") ); | |
128 rpc.close(); | |
129 return; | |
130 } | |
131 } catch(IOException e) { | |
132 throw new RuntimeException(e); | |
133 } | |
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134 String dirName = (String)call.args[0]; |
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135 copy(new File(dirName)); |
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136 rpc.write(Rpc.OK); |
1674 | 137 } else { |
1512 | 138 rpc.write( new RpcException("login expected") ); |
139 rpc.close(); | |
140 return; | |
141 } | |
1499 | 142 } |
143 } | |
144 | |
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145 private void copy(File dir) { |
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146 try { |
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147 IoUtils.deleteRecursively(dir); |
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148 IoUtils.mkdirs(dir); |
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149 for( File f : backupDir.listFiles() ) { |
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150 if( f.isDirectory() && new File(f,"index.json").exists() ) { |
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151 String name = f.getName(); |
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152 Backup backup = getBackup(name); |
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153 backup.copyTo( new File(dir,name) ); |
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154 } |
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155 } |
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156 } catch(IOException e) { |
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157 throw new RuntimeException(e); |
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158 } |
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159 } |
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160 |
1509 | 161 |
162 // for client | |
163 | |
164 public static RpcClient rpcClient(String backupDomain) throws IOException { | |
165 Socket socket; | |
166 if( BackupServer.cipherSuites == null ) { | |
167 socket = new Socket(backupDomain,BackupServer.port); | |
168 } else { | |
169 socket = IoUtils.getSSLSocketFactory().createSocket(backupDomain,BackupServer.port); | |
170 ((SSLSocket)socket).setEnabledCipherSuites(BackupServer.cipherSuites); | |
171 } | |
172 return new RpcClient(socket); | |
173 } | |
174 | |
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175 public static void copyBackupTo(String dirName) throws IOException, RpcException { |
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176 RpcClient rpc = BackupServer.rpcClient("localhost"); |
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177 rpc.write( new RpcCall("copy",dirName) ); |
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178 RpcResult result = rpc.read(); |
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179 rpc.close(); |
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180 } |
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181 |
1499 | 182 } |