src/main/java/net/pterodactylus/sone/main/SonePlugin.java

   1 /*
   2  * Sone - SonePlugin.java - Copyright © 2010–2013 David Roden
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 package net.pterodactylus.sone.main;
  19
  20 import java.io.File;
  21 import java.util.logging.Level;
  22 import java.util.logging.LogRecord;
  23 import java.util.logging.Logger;
  24
  25 import net.pterodactylus.sone.core.Core;
  26 import net.pterodactylus.sone.core.FreenetInterface;
  27 import net.pterodactylus.sone.core.WebOfTrustUpdater;
  28 import net.pterodactylus.sone.database.Database;
  29 import net.pterodactylus.sone.database.PostProvider;
  30 import net.pterodactylus.sone.database.SoneProvider;
  31 import net.pterodactylus.sone.database.memory.MemoryDatabase;
  32 import net.pterodactylus.sone.fcp.FcpInterface;
  33 import net.pterodactylus.sone.freenet.PluginStoreConfigurationBackend;
  34 import net.pterodactylus.sone.freenet.plugin.PluginConnector;
  35 import net.pterodactylus.sone.freenet.wot.IdentityManager;
  36 import net.pterodactylus.sone.freenet.wot.WebOfTrustConnector;
  37 import net.pterodactylus.sone.web.WebInterface;
  38 import net.pterodactylus.util.config.Configuration;
  39 import net.pterodactylus.util.config.ConfigurationException;
  40 import net.pterodactylus.util.config.MapConfigurationBackend;
  41 import net.pterodactylus.util.logging.Logging;
  42 import net.pterodactylus.util.logging.LoggingListener;
  43 import net.pterodactylus.util.version.Version;
  44
  45 import com.google.common.eventbus.EventBus;
  46 import com.google.inject.AbstractModule;
  47 import com.google.inject.Guice;
  48 import com.google.inject.Injector;
  49 import com.google.inject.Singleton;
  50 import com.google.inject.TypeLiteral;
  51 import com.google.inject.matcher.Matchers;
  52 import com.google.inject.name.Names;
  53 import com.google.inject.spi.InjectionListener;
  54 import com.google.inject.spi.TypeEncounter;
  55 import com.google.inject.spi.TypeListener;
  56
  57 import freenet.client.async.DatabaseDisabledException;
  58 import freenet.l10n.BaseL10n.LANGUAGE;
  59 import freenet.l10n.PluginL10n;
  60 import freenet.node.Node;
  61 import freenet.pluginmanager.FredPlugin;
  62 import freenet.pluginmanager.FredPluginBaseL10n;
  63 import freenet.pluginmanager.FredPluginFCP;
  64 import freenet.pluginmanager.FredPluginL10n;
  65 import freenet.pluginmanager.FredPluginThreadless;
  66 import freenet.pluginmanager.FredPluginVersioned;
  67 import freenet.pluginmanager.PluginReplySender;
  68 import freenet.pluginmanager.PluginRespirator;
  69 import freenet.support.SimpleFieldSet;
  70 import freenet.support.api.Bucket;
  71
  72 /**
  73  * This class interfaces with Freenet. It is the class that is loaded by the
  74  * node and starts up the whole Sone system.
  75  *
  76  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  77  */
  78 public class SonePlugin implements FredPlugin, FredPluginFCP, FredPluginL10n, FredPluginBaseL10n, FredPluginThreadless, FredPluginVersioned {
  79
  80         static {
  81                 /* initialize logging. */
  82                 Logging.setup("sone");
  83                 Logging.addLoggingListener(new LoggingListener() {
  84
  85                         @Override
  86                         public void logged(LogRecord logRecord) {
  87                                 Class<?> loggerClass = Logging.getLoggerClass(logRecord.getLoggerName());
  88                                 int recordLevel = logRecord.getLevel().intValue();
  89                                 if (recordLevel < Level.FINE.intValue()) {
  90                                         freenet.support.Logger.debug(loggerClass, logRecord.getMessage(), logRecord.getThrown());
  91                                 } else if (recordLevel < Level.INFO.intValue()) {
  92                                         freenet.support.Logger.minor(loggerClass, logRecord.getMessage(), logRecord.getThrown());
  93                                 } else if (recordLevel < Level.WARNING.intValue()) {
  94                                         freenet.support.Logger.normal(loggerClass, logRecord.getMessage(), logRecord.getThrown());
  95                                 } else if (recordLevel < Level.SEVERE.intValue()) {
  96                                         freenet.support.Logger.warning(loggerClass, logRecord.getMessage(), logRecord.getThrown());
  97                                 } else {
  98                                         freenet.support.Logger.error(loggerClass, logRecord.getMessage(), logRecord.getThrown());
  99                                 }
 100                         }
 101                 });
 102         }
 103
 104         /** The version. */
 105         public static final Version VERSION = new Version(0, 8, 7);
 106
 107         /** The logger. */
 108         private static final Logger logger = Logging.getLogger(SonePlugin.class);
 109
 110         /** The plugin respirator. */
 111         private PluginRespirator pluginRespirator;
 112
 113         /** The core. */
 114         private Core core;
 115
 116         /** The web interface. */
 117         private WebInterface webInterface;
 118
 119         /** The FCP interface. */
 120         private FcpInterface fcpInterface;
 121
 122         /** The l10n helper. */
 123         private PluginL10n l10n;
 124
 125         /** The web of trust connector. */
 126         private WebOfTrustConnector webOfTrustConnector;
 127
 128         //
 129         // ACCESSORS
 130         //
 131
 132         /**
 133          * Returns the plugin respirator for this plugin.
 134          *
 135          * @return The plugin respirator
 136          */
 137         public PluginRespirator pluginRespirator() {
 138                 return pluginRespirator;
 139         }
 140
 141         /**
 142          * Returns the core started by this plugin.
 143          *
 144          * @return The core
 145          */
 146         public Core core() {
 147                 return core;
 148         }
 149
 150         /**
 151          * Returns the plugin’s l10n helper.
 152          *
 153          * @return The plugin’s l10n helper
 154          */
 155         public PluginL10n l10n() {
 156                 return l10n;
 157         }
 158
 159         //
 160         // FREDPLUGIN METHODS
 161         //
 162
 163         /**
 164          * {@inheritDoc}
 165          */
 166         @Override
 167         public void runPlugin(PluginRespirator pluginRespirator) {
 168                 this.pluginRespirator = pluginRespirator;
 169
 170                 /* create a configuration. */
 171                 Configuration oldConfiguration;
 172                 Configuration newConfiguration = null;
 173                 boolean firstStart = !new File("sone.properties").exists();
 174                 boolean newConfig = false;
 175                 try {
 176                         oldConfiguration = new Configuration(new MapConfigurationBackend(new File("sone.properties"), false));
 177                         newConfiguration = oldConfiguration;
 178                 } catch (ConfigurationException ce1) {
 179                         newConfig = true;
 180                         logger.log(Level.INFO, "Could not load configuration file, trying plugin store…", ce1);
 181                         try {
 182                                 newConfiguration = new Configuration(new MapConfigurationBackend(new File("sone.properties"), true));
 183                                 logger.log(Level.INFO, "Created new configuration file.");
 184                         } catch (ConfigurationException ce2) {
 185                                 logger.log(Level.SEVERE, "Could not create configuration file, using Plugin Store!", ce2);
 186                         }
 187                         try {
 188                                 oldConfiguration = new Configuration(new PluginStoreConfigurationBackend(pluginRespirator));
 189                                 logger.log(Level.INFO, "Plugin store loaded.");
 190                         } catch (DatabaseDisabledException dde1) {
 191                                 logger.log(Level.SEVERE, "Could not load any configuration, using empty configuration!");
 192                                 oldConfiguration = new Configuration(new MapConfigurationBackend());
 193                         }
 194                 }
 195
 196                 final Configuration startConfiguration = oldConfiguration;
 197                 final EventBus eventBus = new EventBus();
 198
 199                 /* Freenet injector configuration. */
 200                 AbstractModule freenetModule = new AbstractModule() {
 201
 202                         @Override
 203                         @SuppressWarnings("synthetic-access")
 204                         protected void configure() {
 205                                 bind(PluginRespirator.class).toInstance(SonePlugin.this.pluginRespirator);
 206                                 bind(Node.class).toInstance(SonePlugin.this.pluginRespirator.getNode());
 207                         }
 208                 };
 209                 /* Sone injector configuration. */
 210                 AbstractModule soneModule = new AbstractModule() {
 211
 212                         @Override
 213                         protected void configure() {
 214                                 bind(Core.class).in(Singleton.class);
 215                                 bind(MemoryDatabase.class).in(Singleton.class);
 216                                 bind(EventBus.class).toInstance(eventBus);
 217                                 bind(Configuration.class).toInstance(startConfiguration);
 218                                 bind(FreenetInterface.class).in(Singleton.class);
 219                                 bind(PluginConnector.class).in(Singleton.class);
 220                                 bind(WebOfTrustConnector.class).in(Singleton.class);
 221                                 bind(WebOfTrustUpdater.class).in(Singleton.class);
 222                                 bind(IdentityManager.class).in(Singleton.class);
 223                                 bind(String.class).annotatedWith(Names.named("WebOfTrustContext")).toInstance("Sone");
 224                                 bind(SonePlugin.class).toInstance(SonePlugin.this);
 225                                 bind(FcpInterface.class).in(Singleton.class);
 226                                 bind(Database.class).to(MemoryDatabase.class);
 227                                 bind(SoneProvider.class).to(Core.class).in(Singleton.class);
 228                                 bind(PostProvider.class).to(MemoryDatabase.class);
 229                                 bindListener(Matchers.any(), new TypeListener() {
 230
 231                                         @Override
 232                                         public <I> void hear(TypeLiteral<I> typeLiteral, TypeEncounter<I> typeEncounter) {
 233                                                 typeEncounter.register(new InjectionListener<I>() {
 234
 235                                                         @Override
 236                                                         public void afterInjection(I injectee) {
 237                                                                 eventBus.register(injectee);
 238                                                         }
 239                                                 });
 240                                         }
 241                                 });
 242                         }
 243
 244                 };
 245                 Injector injector = Guice.createInjector(freenetModule, soneModule);
 246                 core = injector.getInstance(Core.class);
 247
 248                 /* create web of trust connector. */
 249                 webOfTrustConnector = injector.getInstance(WebOfTrustConnector.class);
 250
 251                 /* create FCP interface. */
 252                 fcpInterface = injector.getInstance(FcpInterface.class);
 253                 core.setFcpInterface(fcpInterface);
 254
 255                 /* create the web interface. */
 256                 webInterface = injector.getInstance(WebInterface.class);
 257
 258                 boolean startupFailed = true;
 259                 try {
 260
 261                         /* start core! */
 262                         core.start();
 263                         if ((newConfiguration != null) && (oldConfiguration != newConfiguration)) {
 264                                 logger.log(Level.INFO, "Setting configuration to file-based configuration.");
 265                                 core.setConfiguration(newConfiguration);
 266                         }
 267                         webInterface.start();
 268                         webInterface.setFirstStart(firstStart);
 269                         webInterface.setNewConfig(newConfig);
 270                         startupFailed = false;
 271                 } finally {
 272                         if (startupFailed) {
 273                                 /*
 274                                  * we let the exception bubble up but shut the logging down so
 275                                  * that the logfile is not swamped by the installed logging
 276                                  * handlers of the failed instances.
 277                                  */
 278                                 Logging.shutdown();
 279                         }
 280                 }
 281         }
 282
 283         /**
 284          * {@inheritDoc}
 285          */
 286         @Override
 287         public void terminate() {
 288                 try {
 289                         /* stop the web interface. */
 290                         webInterface.stop();
 291
 292                         /* stop the core. */
 293                         core.stop();
 294
 295                         /* stop the web of trust connector. */
 296                         webOfTrustConnector.stop();
 297                 } catch (Throwable t1) {
 298                         logger.log(Level.SEVERE, "Error while shutting down!", t1);
 299                 } finally {
 300                         /* shutdown logger. */
 301                         Logging.shutdown();
 302                 }
 303         }
 304
 305         //
 306         // INTERFACE FredPluginFCP
 307         //
 308
 309         /**
 310          * {@inheritDoc}
 311          */
 312         @Override
 313         public void handle(PluginReplySender pluginReplySender, SimpleFieldSet parameters, Bucket data, int accessType) {
 314                 fcpInterface.handle(pluginReplySender, parameters, data, accessType);
 315         }
 316
 317         //
 318         // INTERFACE FredPluginL10n
 319         //
 320
 321         /**
 322          * {@inheritDoc}
 323          */
 324         @Override
 325         public String getString(String key) {
 326                 return l10n.getBase().getString(key);
 327         }
 328
 329         /**
 330          * {@inheritDoc}
 331          */
 332         @Override
 333         public void setLanguage(LANGUAGE newLanguage) {
 334                 l10n = new PluginL10n(this, newLanguage);
 335         }
 336
 337         //
 338         // INTERFACE FredPluginBaseL10n
 339         //
 340
 341         /**
 342          * {@inheritDoc}
 343          */
 344         @Override
 345         public String getL10nFilesBasePath() {
 346                 return "i18n";
 347         }
 348
 349         /**
 350          * {@inheritDoc}
 351          */
 352         @Override
 353         public String getL10nFilesMask() {
 354                 return "sone.${lang}.properties";
 355         }
 356
 357         /**
 358          * {@inheritDoc}
 359          */
 360         @Override
 361         public String getL10nOverrideFilesMask() {
 362                 return "sone.${lang}.override.properties";
 363         }
 364
 365         /**
 366          * {@inheritDoc}
 367          */
 368         @Override
 369         public ClassLoader getPluginClassLoader() {
 370                 return SonePlugin.class.getClassLoader();
 371         }
 372
 373         //
 374         // INTERFACE FredPluginVersioned
 375         //
 376
 377         /**
 378          * {@inheritDoc}
 379          */
 380         @Override
 381         public String getVersion() {
 382                 return VERSION.toString();
 383         }
 384
 385 }