annotate src/goodjava/lucene/backup/BackupServer.java @ 1660:2968e43cdd44

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author Franklin Schmidt <fschmidt@gmail.com>
date Tue, 19 Apr 2022 23:46:06 -0600
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children 8dd8c556c449
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1 package goodjava.lucene.backup;
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2
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3 import java.io.File;
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4 import java.io.OutputStream;
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5 import java.io.FileOutputStream;
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6 import java.io.BufferedOutputStream;
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7 import java.io.Writer;
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8 import java.io.FileWriter;
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9 import java.io.Reader;
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10 import java.io.FileReader;
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11 import java.io.IOException;
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12 import java.util.Map;
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13 import java.net.Socket;
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14 import java.net.ServerSocket;
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15 import java.util.concurrent.Executors;
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16 import java.util.concurrent.ExecutorService;
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17 import javax.net.ssl.SSLSocket;
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18 import javax.net.ssl.SSLServerSocket;
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19 import goodjava.util.SoftCacheMap;
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20 import goodjava.io.IoUtils;
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21 import goodjava.rpc.RpcServer;
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22 import goodjava.rpc.RpcCall;
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23 import goodjava.rpc.RpcClient;
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24 import goodjava.rpc.RpcResult;
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25 import goodjava.rpc.Rpc;
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26 import goodjava.rpc.RpcException;
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27 import goodjava.logging.Logger;
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28 import goodjava.logging.LoggerFactory;
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29
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30
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31 public class BackupServer {
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32 private static final Logger logger = LoggerFactory.getLogger(BackupServer.class);
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33
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34 public static int port = 9101;
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35 public static String[] cipherSuites = new String[] {
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36 "TLS_DH_anon_WITH_AES_128_GCM_SHA256",
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37 "TLS_DH_anon_WITH_AES_128_CBC_SHA256",
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38 "TLS_ECDH_anon_WITH_AES_128_CBC_SHA",
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39 "TLS_DH_anon_WITH_AES_128_CBC_SHA",
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40 "TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA",
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41 "SSL_DH_anon_WITH_3DES_EDE_CBC_SHA",
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42 "TLS_ECDH_anon_WITH_RC4_128_SHA",
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43 "SSL_DH_anon_WITH_RC4_128_MD5",
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44 "SSL_DH_anon_WITH_DES_CBC_SHA",
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45 "SSL_DH_anon_EXPORT_WITH_DES40_CBC_SHA",
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46 "SSL_DH_anon_EXPORT_WITH_RC4_40_MD5",
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47 };
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48
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49 private final File backupDir;
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50 private static final ExecutorService threadPool = Executors.newCachedThreadPool();
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51 private static final Map<String,Backup> backups = new SoftCacheMap<String,Backup>();
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52
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53 public BackupServer(File backupDir) throws IOException {
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54 this.backupDir = backupDir;
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55 IoUtils.mkdirs(backupDir);
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56 }
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57
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58 public synchronized void start() throws IOException {
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59 final ServerSocket ss;
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60 if( cipherSuites == null ) {
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61 ss = new ServerSocket(port);
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62 } else {
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63 ss = IoUtils.getSSLServerSocketFactory().createServerSocket(port);
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64 ((SSLServerSocket)ss).setEnabledCipherSuites(cipherSuites);
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65 }
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66 threadPool.execute(new Runnable(){public void run() {
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67 try {
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68 while(!threadPool.isShutdown()) {
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69 final Socket socket = ss.accept();
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70 threadPool.execute(new Runnable(){public void run() {
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71 handle(socket);
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72 }});
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73 }
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74 } catch(IOException e) {
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75 logger.error("",e);
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76 }
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77 }});
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78 logger.info("started server on port "+port);
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79 }
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80
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81 private void handle(Socket socket) {
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82 RpcServer rpc = new RpcServer(socket);
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83 Backup backup;
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84 {
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85 RpcCall call = rpc.read();
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86 if( !call.cmd.equals("login") ) {
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87 rpc.write( new RpcException("login expected") );
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88 rpc.close();
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89 return;
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90 }
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91 String name = (String)call.args[0];
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92 String password = (String)call.args[1];
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93 synchronized(backups) {
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94 backup = backups.get(name);
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95 if( backup == null ) {
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96 backup = new Backup(new File(backupDir,name));
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97 backups.put(name,backup);
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98 }
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99 }
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100 File pwd = new File(backupDir,name+".pwd");
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101 try {
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102 if( !pwd.exists() ) {
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103 Writer out = new FileWriter(pwd);
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104 out.write(password);
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105 out.close();
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106 } else {
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107 Reader in = new FileReader(pwd);
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108 if( !IoUtils.readAll(in).equals(password) ) {
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109 rpc.write( new RpcException("wrong password") );
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110 rpc.close();
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111 return;
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112 }
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113 }
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114 } catch(IOException e) {
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115 throw new RuntimeException(e);
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116 }
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117 rpc.write(Rpc.OK);
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118 }
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119 while( !rpc.isClosed() ) {
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120 RpcCall call = rpc.read();
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121 if( call == null )
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122 break;
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123 backup.handle(rpc,call);
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124 }
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125 }
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126
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127
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128 // for client
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129
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130 public static RpcClient rpcClient(String backupDomain) throws IOException {
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131 Socket socket;
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132 if( BackupServer.cipherSuites == null ) {
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133 socket = new Socket(backupDomain,BackupServer.port);
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134 } else {
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135 socket = IoUtils.getSSLSocketFactory().createSocket(backupDomain,BackupServer.port);
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136 ((SSLSocket)socket).setEnabledCipherSuites(BackupServer.cipherSuites);
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137 }
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138 return new RpcClient(socket);
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139 }
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140
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141 public static void getBackup(String backupDomain,String name,File zip) throws IOException, RpcException {
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142 RpcClient rpc = BackupServer.rpcClient(backupDomain);
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143 RpcCall call = new RpcCall("zip",name);
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144 rpc.write(call);
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145 RpcResult result = rpc.read();
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146 OutputStream out = new BufferedOutputStream(new FileOutputStream(zip));
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147 IoUtils.copyAll(result.in,out);
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148 out.close();
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149 rpc.close();
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150 }
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151
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152 }