Remote: try to send the stories image-per-image
[fanfix.git] / src / be / nikiroo / fanfix / library / RemoteLibraryServer.java
index 566c70fa69a572043ea6749ae5361b05b6ac4b73..2799a65a1923975f4695dd8d13bb1c33c0a91f1d 100644 (file)
 package be.nikiroo.fanfix.library;
 
 import java.io.IOException;
+import java.security.InvalidParameterException;
+import java.util.ArrayList;
 import java.util.List;
 
 import be.nikiroo.fanfix.Instance;
+import be.nikiroo.fanfix.data.Chapter;
 import be.nikiroo.fanfix.data.MetaData;
+import be.nikiroo.fanfix.data.Paragraph;
+import be.nikiroo.fanfix.data.Story;
 import be.nikiroo.utils.Version;
-import be.nikiroo.utils.serial.ConnectActionServer;
-import be.nikiroo.utils.serial.Server;
+import be.nikiroo.utils.serial.server.ConnectActionClientObject;
+import be.nikiroo.utils.serial.server.ConnectActionServerObject;
+import be.nikiroo.utils.serial.server.ServerObject;
 
-public class RemoteLibraryServer extends Server {
+/**
+ * Create a new remote server that will listen for order on the given port.
+ * <p>
+ * The available commands are given as arrays of objects (first item is the key,
+ * second is the command, the rest are the arguments).
+ * <p>
+ * The key is always a String, the commands are also Strings; the parameters
+ * vary depending upon the command.
+ * <ul>
+ * <li>[key] GET_METADATA *: will return the metadata of all the stories in the
+ * library</li>
+ * <li>[key] GET_STORY [luid]: will return the given story if it exists (or NULL
+ * if not)</li>
+ * <li>[key] SAVE_STORY [luid]: save the story (that must be sent just after the
+ * command) with the given LUID</li>
+ * <li>[key] DELETE_STORY [luid]: delete the story of LUID luid</li>
+ * <li>[key] GET_COVER [luid]: return the cover of the story</li>
+ * <li>[key] GET_SOURCE_COVER [source]: return the cover for this source</li>
+ * <li>[key] SET_SOURCE_COVER [source], [luid]: set the default cover for the
+ * given source to the cover of the story denoted by luid</li>
+ * <li>[key] EXIT: stop the server</li>
+ * </ul>
+ * 
+ * @author niki
+ */
+public class RemoteLibraryServer extends ServerObject {
+       private final String key;
 
-       public RemoteLibraryServer(int port) throws IOException {
-               super(Version.getCurrentVersion(), port, true);
+       /**
+        * Create a new remote server (will not be active until
+        * {@link RemoteLibraryServer#start()} is called).
+        * 
+        * @param key
+        *            the key that will restrict access to this server
+        * @param port
+        *            the port to listen on
+        * 
+        * @throws IOException
+        *             in case of I/O error
+        */
+       public RemoteLibraryServer(String key, int port) throws IOException {
+               super("Fanfix remote library", port, true);
+               this.key = key;
        }
 
        @Override
-       protected Object onRequest(ConnectActionServer action,
+       protected Object onRequest(ConnectActionServerObject action,
                        Version clientVersion, Object data) throws Exception {
-               String command = null;
-               String args = null;
-               if (data instanceof String) {
-                       command = (String) data;
-                       int pos = command.indexOf(" ");
-                       if (pos >= 0) {
-                               args = command.substring(pos + 1);
-                               command = command.substring(0, pos);
+               String key = "";
+               String command = "";
+               Object[] args = new Object[0];
+               if (data instanceof Object[]) {
+                       Object[] dataArray = (Object[]) data;
+                       if (dataArray.length >= 2) {
+                               args = new Object[dataArray.length - 2];
+                               for (int i = 2; i < dataArray.length; i++) {
+                                       args[i - 2] = dataArray[i];
+                               }
+
+                               key = "" + dataArray[0];
+                               command = "" + dataArray[1];
                        }
                }
 
-               System.out.println(String.format("COMMAND: [%s], ARGS: [%s]", command,
-                               args));
+               System.out.print("[" + command + "] ");
+               for (Object arg : args) {
+                       System.out.print(arg + " ");
+               }
+               System.out.println("");
 
-               if (command != null) {
-                       if (command.equals("GET_METADATA")) {
-                               if (args != null && args.equals("*")) {
-                                       List<MetaData> metas = Instance.getLibrary().getMetas(null);
-                                       return metas.toArray(new MetaData[] {});
-                               }
-                       } else if (command.equals("GET_STORY")) {
-                               if (args != null) {
-                                       return Instance.getLibrary().getStory(args, null);
-                               }
+               if (!key.equals(this.key)) {
+                       System.out.println("Key rejected.");
+                       throw new SecurityException("Invalid key");
+               }
+
+               // TODO: progress (+send name + %age info back to client)
+
+               if ("GET_METADATA".equals(command)) {
+                       if (args[0].equals("*")) {
+                               List<MetaData> metas = Instance.getLibrary().getMetas(null);
+                               return metas.toArray(new MetaData[] {});
                        }
+                       throw new InvalidParameterException(
+                                       "only * is valid here, but you passed: " + args[0]);
+               } else if ("GET_STORY".equals(command)) {
+                       Story story = Instance.getLibrary().getStory("" + args[0], null);
+                       sendStory(story, action);
+               } else if ("SAVE_STORY".equals(command)) {
+                       Story story = recStory(action);
+                       Instance.getLibrary().save(story, "" + args[1], null);
+               } else if ("DELETE_STORY".equals(command)) {
+                       Instance.getLibrary().delete("" + args[0]);
+               } else if ("GET_COVER".equals(command)) {
+                       return Instance.getLibrary().getCover("" + args[0]);
+               } else if ("GET_SOURCE_COVER".equals(command)) {
+                       return Instance.getLibrary().getSourceCover("" + args[0]);
+               } else if ("SET_SOURCE_COVER".equals(command)) {
+                       Instance.getLibrary().setSourceCover("" + args[0], "" + args[1]);
+               } else if ("EXIT".equals(command)) {
+                       stop(0, false);
                }
 
                return null;
        }
+
+       public static void sendStory(Story story, Object sender)
+                       throws NoSuchFieldException, NoSuchMethodException,
+                       ClassNotFoundException, IOException {
+
+               if (!story.getMeta().isImageDocument()) {
+                       sendNextObject(sender, story);
+                       return;
+               }
+
+               story = story.clone();
+
+               List<Chapter> chaps = story.getChapters();
+               story.setChapters(new ArrayList<Chapter>());
+               sendNextObject(sender, story);
+
+               for (Chapter chap : chaps) {
+                       List<Paragraph> paras = chap.getParagraphs();
+                       chap.setParagraphs(new ArrayList<Paragraph>());
+                       sendNextObject(sender, chap);
+
+                       for (Paragraph para : paras) {
+                               sendNextObject(sender, para);
+                       }
+               }
+       }
+
+       public static Story recStory(Object source) throws NoSuchFieldException,
+                       NoSuchMethodException, ClassNotFoundException, IOException {
+
+               Story story = null;
+
+               Object obj = getNextObject(source);
+               if (obj instanceof Story) {
+                       story = (Story) obj;
+
+                       Chapter current = null;
+                       for (obj = getNextObject(source); obj != null; obj = getNextObject(source)) {
+                               if (obj instanceof Chapter) {
+                                       current = (Chapter) obj;
+                                       story.getChapters().add(current);
+                               } else if (obj instanceof Paragraph) {
+                                       current.getParagraphs().add((Paragraph) obj);
+                               }
+                       }
+               }
+
+               return story;
+       }
+
+       private static Object getNextObject(Object clientOrServer)
+                       throws NoSuchFieldException, NoSuchMethodException,
+                       ClassNotFoundException, IOException {
+               if (clientOrServer instanceof ConnectActionClientObject) {
+                       ConnectActionClientObject client = (ConnectActionClientObject) clientOrServer;
+                       return client.send(null);
+               } else if (clientOrServer instanceof ConnectActionServerObject) {
+                       ConnectActionServerObject server = (ConnectActionServerObject) clientOrServer;
+                       Object obj = server.rec();
+                       server.send(null);
+                       return obj;
+               } else {
+                       throw new ClassNotFoundException();
+               }
+       }
+
+       private static void sendNextObject(Object clientOrServer, Object obj)
+                       throws NoSuchFieldException, NoSuchMethodException,
+                       ClassNotFoundException, IOException {
+               if (clientOrServer instanceof ConnectActionClientObject) {
+                       ConnectActionClientObject client = (ConnectActionClientObject) clientOrServer;
+                       client.send(obj);
+               } else if (clientOrServer instanceof ConnectActionServerObject) {
+                       ConnectActionServerObject server = (ConnectActionServerObject) clientOrServer;
+                       server.send(obj);
+                       server.rec();
+               } else {
+                       throw new ClassNotFoundException();
+               }
+       }
 }