library/RemoteLibraryServer.java

   1 package be.nikiroo.fanfix.library;
   2
   3 import java.io.IOException;
   4 import java.security.InvalidParameterException;
   5 import java.util.List;
   6
   7 import be.nikiroo.fanfix.Instance;
   8 import be.nikiroo.fanfix.data.MetaData;
   9 import be.nikiroo.fanfix.data.Story;
  10 import be.nikiroo.utils.Version;
  11 import be.nikiroo.utils.serial.ConnectActionServer;
  12 import be.nikiroo.utils.serial.Server;
  13
  14 /**
  15  * Create a new remote server that will listen for order on the given port.
  16  * <p>
  17  * The available commands are given as String arrays (first item is the key,
  18  * second is the command, the rest are the arguments):
  19  * <ul>
  20  * <li>KEY GET_METADATA *: will return the metadata of all the stories in the
  21  * library</li>
  22  * <li>KEY GET_STORY [luid]: will return the given story if it exists (or NULL
  23  * if not)</li>
  24  * <li>KEY SAVE_STORY [story] [luid]: save the story with the given LUID</li>
  25  * <li>KEY DELETE_STORY [luid]: delete the story of LUID luid</li>
  26  * <li>KEY GET_COVER [luid]: return the cover of the story</li>
  27  * <li>KEY GET_SOURCE_COVER [source]: return the cover for this source</li>
  28  * <li>KEY SET_SOURCE_COVER [source], [luid]: set the default cover for the
  29  * given source to the cover of the story denoted by luid</li>
  30  * <li>KEY EXIT: stop the server</li>
  31  * </ul>
  32  *
  33  * @author niki
  34  */
  35 public class RemoteLibraryServer extends Server {
  36         private final String key;
  37
  38         /**
  39          * Create a new remote server (will not be active until
  40          * {@link RemoteLibraryServer#start()} is called).
  41          *
  42          * @param key
  43          *            the key that will restrict access to this server
  44          * @param port
  45          *            the port to listen on
  46          *
  47          * @throws IOException
  48          *             in case of I/O error
  49          */
  50         public RemoteLibraryServer(String key, int port) throws IOException {
  51                 super(port, true);
  52                 this.key = key;
  53         }
  54
  55         @Override
  56         protected Object onRequest(ConnectActionServer action,
  57                         Version clientVersion, Object data) throws Exception {
  58                 String key = "";
  59                 String command = "";
  60                 Object[] args = new Object[0];
  61                 if (data instanceof Object[]) {
  62                         Object[] dataArray = (Object[]) data;
  63                         if (dataArray.length >= 2) {
  64                                 args = new Object[dataArray.length - 2];
  65                                 for (int i = 2; i < dataArray.length; i++) {
  66                                         args[i - 2] = dataArray[i];
  67                                 }
  68
  69                                 key = "" + dataArray[0];
  70                                 command = "" + dataArray[1];
  71                         }
  72                 }
  73
  74                 System.out.print("[" + command + "] ");
  75                 for (Object arg : args) {
  76                         System.out.print(arg + " ");
  77                 }
  78                 System.out.println("");
  79
  80                 if (!key.equals(this.key)) {
  81                         System.out.println("Key rejected.");
  82                         throw new SecurityException("Invalid key");
  83                 }
  84
  85                 // TODO: progress (+send name + %age info back to client)
  86
  87                 if ("GET_METADATA".equals(command)) {
  88                         if (args[0].equals("*")) {
  89                                 List<MetaData> metas = Instance.getLibrary().getMetas(null);
  90                                 return metas.toArray(new MetaData[] {});
  91                         }
  92                         throw new InvalidParameterException(
  93                                         "only * is valid here, but you passed: " + args[0]);
  94                 } else if ("GET_STORY".equals(command)) {
  95                         return Instance.getLibrary().getStory("" + args[0], null);
  96                 } else if ("SAVE_STORY".equals(command)) {
  97                         Instance.getLibrary().save((Story) args[0], "" + args[1], null);
  98                 } else if ("DELETE_STORY".equals(command)) {
  99                         Instance.getLibrary().delete("" + args[0]);
 100                 } else if ("GET_COVER".equals(command)) {
 101                         return Instance.getLibrary().getCover("" + args[0]);
 102                 } else if ("GET_SOURCE_COVER".equals(command)) {
 103                         return Instance.getLibrary().getSourceCover("" + args[0]);
 104                 } else if ("SET_SOURCE_COVER".equals(command)) {
 105                         Instance.getLibrary().setSourceCover("" + args[0], "" + args[1]);
 106                 } else if ("EXIT".equals(command)) {
 107                         stop(0, false);
 108                 }
 109
 110                 return null;
 111         }
 112 }