X-Git-Url: http://git.nikiroo.be/?a=blobdiff_plain;f=src%2Fbe%2Fnikiroo%2Ffanfix%2Flibrary%2FRemoteLibraryServer.java;h=7d5a0ae10d988f1a79f52f7732dfb0411e5f057e;hb=e1de8087ab1623f7624018af905ea3bb0ef45802;hp=566c70fa69a572043ea6749ae5361b05b6ac4b73;hpb=e42573a004fac26378c693ce9ef0d6319713c682;p=nikiroo-utils.git

diff --git a/src/be/nikiroo/fanfix/library/RemoteLibraryServer.java b/src/be/nikiroo/fanfix/library/RemoteLibraryServer.java
index 566c70f..7d5a0ae 100644
--- a/src/be/nikiroo/fanfix/library/RemoteLibraryServer.java
+++ b/src/be/nikiroo/fanfix/library/RemoteLibraryServer.java
@@ -1,50 +1,328 @@
 package be.nikiroo.fanfix.library;
 
 import java.io.IOException;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Date;
 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.Progress;
+import be.nikiroo.utils.Progress.ProgressListener;
+import be.nikiroo.utils.StringUtils;
 import be.nikiroo.utils.Version;
-import be.nikiroo.utils.serial.ConnectActionServer;
-import be.nikiroo.utils.serial.Server;
+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 md5 is always a String (the MD5 hash of the access key), the commands are
+ * also Strings; the parameters vary depending upon the command.
+ * <ul>
+ * <li>[md5] PING: will return PONG if the key is accepted</li>
+ * <li>[md5] GET_METADATA *: will return the metadata of all the stories in the
+ * library (array)</li>
+ * *
+ * <li>[md5] GET_METADATA [luid]: will return the metadata of the story of LUID
+ * luid</li>
+ * <li>[md5] GET_STORY [luid]: will return the given story if it exists (or NULL
+ * if not)</li>
+ * <li>[md5] SAVE_STORY [luid]: save the story (that must be sent just after the
+ * command) with the given LUID, then return the LUID</li>
+ * <li>[md5] IMPORT [url]: save the story found at the given URL, then return
+ * the LUID</li>
+ * <li>[md5] DELETE_STORY [luid]: delete the story of LUID luid</li>
+ * <li>[md5] GET_COVER [luid]: return the cover of the story</li>
+ * <li>[md5] GET_CUSTOM_SOURCE_COVER [source]: return the cover for this source</li>
+ * <li>[md5] SET_SOURCE_COVER [source], [luid]: set the default cover for the
+ * given source to the cover of the story denoted by luid</li>
+ * <li>[md5] CHANGE_SOURCE [luid] [new source]: change the source of the story
+ * of LUID luid</li>
+ * <li>[md5] EXIT: stop the server</li>
+ * </ul>
+ * 
+ * @author niki
+ */
+public class RemoteLibraryServer extends ServerObject {
+	private final String md5;
 
-	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.md5 = StringUtils.getMd5Hash(key);
+
+		setTraceHandler(Instance.getTraceHandler());
 	}
 
 	@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 md5 = "";
+		String command = "";
+		Object[] args = new Object[0];
+		if (data instanceof Object[]) {
+			Object[] dataArray = (Object[]) data;
+			if (dataArray.length >= 2) {
+				md5 = "" + dataArray[0];
+				command = "" + dataArray[1];
+
+				args = new Object[dataArray.length - 2];
+				for (int i = 2; i < dataArray.length; i++) {
+					args[i - 2] = dataArray[i];
+				}
 			}
 		}
 
-		System.out.println(String.format("COMMAND: [%s], ARGS: [%s]", command,
-				args));
+		String trace = "[" + command + "] ";
+		for (Object arg : args) {
+			trace += arg + " ";
+		}
+		getTraceHandler().trace(trace);
 
-		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 (!md5.equals(this.md5)) {
+			getTraceHandler().trace("Key rejected.");
+			return null;
+		}
+
+		if ("PING".equals(command)) {
+			return "PONG";
+		} else if ("GET_METADATA".equals(command)) {
+			if ("*".equals(args[0])) {
+				Progress pg = createPgForwarder(action);
+				List<MetaData> metas = Instance.getLibrary().getMetas(pg);
+				forcePgDoneSent(pg);
+				return metas.toArray(new MetaData[] {});
+			}
+
+			return new MetaData[] { Instance.getLibrary().getInfo(
+					(String) args[0]) };
+		} else if ("GET_STORY".equals(command)) {
+			MetaData meta = Instance.getLibrary().getInfo((String) args[0]);
+			meta = meta.clone();
+			meta.setCover(null);
+
+			action.send(meta);
+			action.rec();
+
+			Story story = Instance.getLibrary()
+					.getStory((String) args[0], null);
+			for (Object obj : breakStory(story)) {
+				action.send(obj);
+				action.rec();
+			}
+		} else if ("SAVE_STORY".equals(command)) {
+			List<Object> list = new ArrayList<Object>();
+
+			action.send(null);
+			Object obj = action.rec();
+			while (obj != null) {
+				list.add(obj);
+				action.send(null);
+				obj = action.rec();
 			}
+
+			Story story = rebuildStory(list);
+			Instance.getLibrary().save(story, (String) args[0], null);
+			return story.getMeta().getLuid();
+		} else if ("IMPORT".equals(command)) {
+			Progress pg = createPgForwarder(action);
+			Story story = Instance.getLibrary().imprt(
+					new URL((String) args[0]), pg);
+			forcePgDoneSent(pg);
+			return story.getMeta().getLuid();
+		} else if ("DELETE_STORY".equals(command)) {
+			Instance.getLibrary().delete((String) args[0]);
+		} else if ("GET_COVER".equals(command)) {
+			return Instance.getLibrary().getCover((String) args[0]);
+		} else if ("GET_CUSTOM_SOURCE_COVER".equals(command)) {
+			return Instance.getLibrary().getCustomSourceCover((String) args[0]);
+		} else if ("SET_SOURCE_COVER".equals(command)) {
+			Instance.getLibrary().setSourceCover((String) args[0],
+					(String) args[1]);
+		} else if ("CHANGE_SOURCE".equals(command)) {
+			Progress pg = createPgForwarder(action);
+			Instance.getLibrary().changeSource((String) args[0],
+					(String) args[1], pg);
+			forcePgDoneSent(pg);
+		} else if ("EXIT".equals(command)) {
+			stop(0, false);
 		}
 
 		return null;
 	}
+
+	@Override
+	protected void onError(Exception e) {
+		getTraceHandler().error(e);
+	}
+
+	/**
+	 * Break a story in multiple {@link Object}s for easier serialisation.
+	 * 
+	 * @param story
+	 *            the {@link Story} to break
+	 * 
+	 * @return the list of {@link Object}s
+	 */
+	static List<Object> breakStory(Story story) {
+		List<Object> list = new ArrayList<Object>();
+
+		story = story.clone();
+		list.add(story);
+
+		if (story.getMeta().isImageDocument()) {
+			for (Chapter chap : story) {
+				list.add(chap);
+				list.addAll(chap.getParagraphs());
+				chap.setParagraphs(new ArrayList<Paragraph>());
+			}
+			story.setChapters(new ArrayList<Chapter>());
+		}
+
+		return list;
+	}
+
+	/**
+	 * Rebuild a story from a list of broke up {@link Story} parts.
+	 * 
+	 * @param list
+	 *            the list of {@link Story} parts
+	 * 
+	 * @return the reconstructed {@link Story}
+	 */
+	static Story rebuildStory(List<Object> list) {
+		Story story = null;
+		Chapter chap = null;
+
+		for (Object obj : list) {
+			if (obj instanceof Story) {
+				story = (Story) obj;
+			} else if (obj instanceof Chapter) {
+				chap = (Chapter) obj;
+				story.getChapters().add(chap);
+			} else if (obj instanceof Paragraph) {
+				chap.getParagraphs().add((Paragraph) obj);
+			}
+		}
+
+		return story;
+	}
+
+	/**
+	 * Update the {@link Progress} with the adequate {@link Object} received
+	 * from the network via {@link RemoteLibraryServer}.
+	 * 
+	 * @param pg
+	 *            the {@link Progress} to update
+	 * @param rep
+	 *            the object received from the network
+	 * 
+	 * @return TRUE if it was a progress event, FALSE if not
+	 */
+	static boolean updateProgress(Progress pg, Object rep) {
+		if (rep instanceof Integer[]) {
+			Integer[] a = (Integer[]) rep;
+			if (a.length == 3) {
+				int min = a[0];
+				int max = a[1];
+				int progress = a[2];
+
+				if (min >= 0 && min <= max) {
+					pg.setMinMax(min, max);
+					pg.setProgress(progress);
+
+					return true;
+				}
+			}
+		}
+
+		return false;
+	}
+
+	/**
+	 * Create a {@link Progress} that will forward its progress over the
+	 * network.
+	 * 
+	 * @param action
+	 *            the {@link ConnectActionServerObject} to use to forward it
+	 * 
+	 * @return the {@link Progress}
+	 */
+	private static Progress createPgForwarder(
+			final ConnectActionServerObject action) {
+		final Boolean[] isDoneForwarded = new Boolean[] { false };
+		final Progress pg = new Progress() {
+			@Override
+			public boolean isDone() {
+				return isDoneForwarded[0];
+			}
+		};
+
+		final Integer[] p = new Integer[] { -1, -1, -1 };
+		final Long[] lastTime = new Long[] { new Date().getTime() };
+		pg.addProgressListener(new ProgressListener() {
+			@Override
+			public void progress(Progress progress, String name) {
+				int min = pg.getMin();
+				int max = pg.getMax();
+				int relativeProgress = min
+						+ (int) Math.round(pg.getRelativeProgress()
+								* (max - min));
+
+				// Do not re-send the same value twice over the wire,
+				// unless more than 2 seconds have elapsed (to maintain the
+				// connection)
+				if ((p[0] != min || p[1] != max || p[2] != relativeProgress)
+						|| (new Date().getTime() - lastTime[0] > 2000)) {
+					p[0] = min;
+					p[1] = max;
+					p[2] = relativeProgress;
+
+					try {
+						action.send(new Integer[] { min, max, relativeProgress });
+						action.rec();
+					} catch (Exception e) {
+						Instance.getTraceHandler().error(e);
+					}
+
+					isDoneForwarded[0] = pg.isDone();
+					lastTime[0] = new Date().getTime();
+				}
+			}
+		});
+
+		return pg;
+	}
+
+	// with 30 seconds timeout
+	private static void forcePgDoneSent(Progress pg) {
+		long start = new Date().getTime();
+		pg.done();
+		while (!pg.isDone() && new Date().getTime() - start < 30000) {
+			try {
+				Thread.sleep(100);
+			} catch (InterruptedException e) {
+				Instance.getTraceHandler().error(e);
+			}
+		}
+	}
 }