| 1 | package be.nikiroo.fanfix.library; |
| 2 | |
| 3 | import java.io.IOException; |
| 4 | import java.security.InvalidParameterException; |
| 5 | import java.util.ArrayList; |
| 6 | import java.util.List; |
| 7 | |
| 8 | import be.nikiroo.fanfix.Instance; |
| 9 | import be.nikiroo.fanfix.data.Chapter; |
| 10 | import be.nikiroo.fanfix.data.MetaData; |
| 11 | import be.nikiroo.fanfix.data.Paragraph; |
| 12 | import be.nikiroo.fanfix.data.Story; |
| 13 | import be.nikiroo.utils.Version; |
| 14 | import be.nikiroo.utils.serial.server.ConnectActionClientObject; |
| 15 | import be.nikiroo.utils.serial.server.ConnectActionServerObject; |
| 16 | import be.nikiroo.utils.serial.server.ServerObject; |
| 17 | |
| 18 | /** |
| 19 | * Create a new remote server that will listen for order on the given port. |
| 20 | * <p> |
| 21 | * The available commands are given as arrays of objects (first item is the key, |
| 22 | * second is the command, the rest are the arguments). |
| 23 | * <p> |
| 24 | * The key is always a String, the commands are also Strings; the parameters |
| 25 | * vary depending upon the command. |
| 26 | * <ul> |
| 27 | * <li>[key] GET_METADATA *: will return the metadata of all the stories in the |
| 28 | * library</li> |
| 29 | * <li>[key] GET_STORY [luid]: will return the given story if it exists (or NULL |
| 30 | * if not)</li> |
| 31 | * <li>[key] SAVE_STORY [luid]: save the story (that must be sent just after the |
| 32 | * command) with the given LUID</li> |
| 33 | * <li>[key] DELETE_STORY [luid]: delete the story of LUID luid</li> |
| 34 | * <li>[key] GET_COVER [luid]: return the cover of the story</li> |
| 35 | * <li>[key] GET_SOURCE_COVER [source]: return the cover for this source</li> |
| 36 | * <li>[key] SET_SOURCE_COVER [source], [luid]: set the default cover for the |
| 37 | * given source to the cover of the story denoted by luid</li> |
| 38 | * <li>[key] EXIT: stop the server</li> |
| 39 | * </ul> |
| 40 | * |
| 41 | * @author niki |
| 42 | */ |
| 43 | public class RemoteLibraryServer extends ServerObject { |
| 44 | private final String key; |
| 45 | |
| 46 | /** |
| 47 | * Create a new remote server (will not be active until |
| 48 | * {@link RemoteLibraryServer#start()} is called). |
| 49 | * |
| 50 | * @param key |
| 51 | * the key that will restrict access to this server |
| 52 | * @param port |
| 53 | * the port to listen on |
| 54 | * |
| 55 | * @throws IOException |
| 56 | * in case of I/O error |
| 57 | */ |
| 58 | public RemoteLibraryServer(String key, int port) throws IOException { |
| 59 | super("Fanfix remote library", port, true); |
| 60 | this.key = key; |
| 61 | } |
| 62 | |
| 63 | @Override |
| 64 | protected Object onRequest(ConnectActionServerObject action, |
| 65 | Version clientVersion, Object data) throws Exception { |
| 66 | String key = ""; |
| 67 | String command = ""; |
| 68 | Object[] args = new Object[0]; |
| 69 | if (data instanceof Object[]) { |
| 70 | Object[] dataArray = (Object[]) data; |
| 71 | if (dataArray.length >= 2) { |
| 72 | args = new Object[dataArray.length - 2]; |
| 73 | for (int i = 2; i < dataArray.length; i++) { |
| 74 | args[i - 2] = dataArray[i]; |
| 75 | } |
| 76 | |
| 77 | key = "" + dataArray[0]; |
| 78 | command = "" + dataArray[1]; |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | System.out.print("[" + command + "] "); |
| 83 | for (Object arg : args) { |
| 84 | System.out.print(arg + " "); |
| 85 | } |
| 86 | System.out.println(""); |
| 87 | |
| 88 | if (!key.equals(this.key)) { |
| 89 | System.out.println("Key rejected."); |
| 90 | throw new SecurityException("Invalid key"); |
| 91 | } |
| 92 | |
| 93 | // TODO: progress (+send name + %age info back to client) |
| 94 | |
| 95 | if ("GET_METADATA".equals(command)) { |
| 96 | if (args[0].equals("*")) { |
| 97 | List<MetaData> metas = Instance.getLibrary().getMetas(null); |
| 98 | return metas.toArray(new MetaData[] {}); |
| 99 | } |
| 100 | throw new InvalidParameterException( |
| 101 | "only * is valid here, but you passed: " + args[0]); |
| 102 | } else if ("GET_STORY".equals(command)) { |
| 103 | Story story = Instance.getLibrary().getStory("" + args[0], null); |
| 104 | sendStory(story, action); |
| 105 | } else if ("SAVE_STORY".equals(command)) { |
| 106 | Story story = recStory(action); |
| 107 | Instance.getLibrary().save(story, "" + args[1], null); |
| 108 | } else if ("DELETE_STORY".equals(command)) { |
| 109 | Instance.getLibrary().delete("" + args[0]); |
| 110 | } else if ("GET_COVER".equals(command)) { |
| 111 | return Instance.getLibrary().getCover("" + args[0]); |
| 112 | } else if ("GET_SOURCE_COVER".equals(command)) { |
| 113 | return Instance.getLibrary().getSourceCover("" + args[0]); |
| 114 | } else if ("SET_SOURCE_COVER".equals(command)) { |
| 115 | Instance.getLibrary().setSourceCover("" + args[0], "" + args[1]); |
| 116 | } else if ("EXIT".equals(command)) { |
| 117 | stop(0, false); |
| 118 | } |
| 119 | |
| 120 | return null; |
| 121 | } |
| 122 | |
| 123 | public static void sendStory(Story story, Object sender) |
| 124 | throws NoSuchFieldException, NoSuchMethodException, |
| 125 | ClassNotFoundException, IOException { |
| 126 | |
| 127 | if (!story.getMeta().isImageDocument()) { |
| 128 | sendNextObject(sender, story); |
| 129 | return; |
| 130 | } |
| 131 | |
| 132 | story = story.clone(); |
| 133 | |
| 134 | List<Chapter> chaps = story.getChapters(); |
| 135 | story.setChapters(new ArrayList<Chapter>()); |
| 136 | sendNextObject(sender, story); |
| 137 | |
| 138 | for (Chapter chap : chaps) { |
| 139 | List<Paragraph> paras = chap.getParagraphs(); |
| 140 | chap.setParagraphs(new ArrayList<Paragraph>()); |
| 141 | sendNextObject(sender, chap); |
| 142 | |
| 143 | for (Paragraph para : paras) { |
| 144 | sendNextObject(sender, para); |
| 145 | } |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | public static Story recStory(Object source) throws NoSuchFieldException, |
| 150 | NoSuchMethodException, ClassNotFoundException, IOException { |
| 151 | |
| 152 | Story story = null; |
| 153 | |
| 154 | Object obj = getNextObject(source); |
| 155 | if (obj instanceof Story) { |
| 156 | story = (Story) obj; |
| 157 | |
| 158 | Chapter current = null; |
| 159 | for (obj = getNextObject(source); obj != null; obj = getNextObject(source)) { |
| 160 | if (obj instanceof Chapter) { |
| 161 | current = (Chapter) obj; |
| 162 | story.getChapters().add(current); |
| 163 | } else if (obj instanceof Paragraph) { |
| 164 | current.getParagraphs().add((Paragraph) obj); |
| 165 | } |
| 166 | } |
| 167 | } |
| 168 | |
| 169 | return story; |
| 170 | } |
| 171 | |
| 172 | private static Object getNextObject(Object clientOrServer) |
| 173 | throws NoSuchFieldException, NoSuchMethodException, |
| 174 | ClassNotFoundException, IOException { |
| 175 | if (clientOrServer instanceof ConnectActionClientObject) { |
| 176 | ConnectActionClientObject client = (ConnectActionClientObject) clientOrServer; |
| 177 | return client.send(null); |
| 178 | } else if (clientOrServer instanceof ConnectActionServerObject) { |
| 179 | ConnectActionServerObject server = (ConnectActionServerObject) clientOrServer; |
| 180 | Object obj = server.rec(); |
| 181 | server.send(null); |
| 182 | return obj; |
| 183 | } else { |
| 184 | throw new ClassNotFoundException(); |
| 185 | } |
| 186 | } |
| 187 | |
| 188 | private static void sendNextObject(Object clientOrServer, Object obj) |
| 189 | throws NoSuchFieldException, NoSuchMethodException, |
| 190 | ClassNotFoundException, IOException { |
| 191 | if (clientOrServer instanceof ConnectActionClientObject) { |
| 192 | ConnectActionClientObject client = (ConnectActionClientObject) clientOrServer; |
| 193 | client.send(obj); |
| 194 | } else if (clientOrServer instanceof ConnectActionServerObject) { |
| 195 | ConnectActionServerObject server = (ConnectActionServerObject) clientOrServer; |
| 196 | server.send(obj); |
| 197 | server.rec(); |
| 198 | } else { |
| 199 | throw new ClassNotFoundException(); |
| 200 | } |
| 201 | } |
| 202 | } |