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.PostBuilderFactory;
  30 import net.pterodactylus.sone.database.PostProvider;
  31 import net.pterodactylus.sone.database.PostReplyBuilderFactory;
  32 import net.pterodactylus.sone.database.SoneProvider;
  33 import net.pterodactylus.sone.database.memory.MemoryDatabase;
  34 import net.pterodactylus.sone.fcp.FcpInterface;
  35 import net.pterodactylus.sone.freenet.PluginStoreConfigurationBackend;
  36 import net.pterodactylus.sone.freenet.plugin.PluginConnector;
  37 import net.pterodactylus.sone.freenet.wot.IdentityManager;
  38 import net.pterodactylus.sone.freenet.wot.WebOfTrustConnector;
  39 import net.pterodactylus.sone.web.WebInterface;
  40 import net.pterodactylus.util.config.Configuration;
  41 import net.pterodactylus.util.config.ConfigurationException;
  42 import net.pterodactylus.util.config.MapConfigurationBackend;
  43 import net.pterodactylus.util.logging.Logging;
  44 import net.pterodactylus.util.logging.LoggingListener;
  45 import net.pterodactylus.util.version.Version;
  46
  47 import com.google.common.eventbus.EventBus;
  48 import com.google.inject.AbstractModule;
  49 import com.google.inject.Guice;
  50 import com.google.inject.Injector;
  51 import com.google.inject.Singleton;
  52 import com.google.inject.TypeLiteral;
  53 import com.google.inject.matcher.Matchers;
  54 import com.google.inject.name.Names;
  55 import com.google.inject.spi.InjectionListener;
  56 import com.google.inject.spi.TypeEncounter;
  57 import com.google.inject.spi.TypeListener;
  58
  59 import freenet.client.async.DatabaseDisabledException;
  60 import freenet.l10n.BaseL10n.LANGUAGE;
  61 import freenet.l10n.PluginL10n;
  62 import freenet.node.Node;
  63 import freenet.pluginmanager.FredPlugin;
  64 import freenet.pluginmanager.FredPluginBaseL10n;
  65 import freenet.pluginmanager.FredPluginFCP;
  66 import freenet.pluginmanager.FredPluginL10n;
  67 import freenet.pluginmanager.FredPluginThreadless;
  68 import freenet.pluginmanager.FredPluginVersioned;
  69 import freenet.pluginmanager.PluginReplySender;
  70 import freenet.pluginmanager.PluginRespirator;
  71 import freenet.support.SimpleFieldSet;
  72 import freenet.support.api.Bucket;
  73
  74 /**
  75  * This class interfaces with Freenet. It is the class that is loaded by the
  76  * node and starts up the whole Sone system.
  77  *
  78  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  79  */
  80 public class SonePlugin implements FredPlugin, FredPluginFCP, FredPluginL10n, FredPluginBaseL10n, FredPluginThreadless, FredPluginVersioned {
  81
  82         static {
  83                 /* initialize logging. */
  84                 Logging.setup("sone");
  85                 Logging.addLoggingListener(new LoggingListener() {
  86
  87                         @Override
  88                         public void logged(LogRecord logRecord) {
  89                                 Class<?> loggerClass = Logging.getLoggerClass(logRecord.getLoggerName());
  90                                 int recordLevel = logRecord.getLevel().intValue();
  91                                 if (recordLevel < Level.FINE.intValue()) {
  92                                         freenet.support.Logger.debug(loggerClass, logRecord.getMessage(), logRecord.getThrown());
  93                                 } else if (recordLevel < Level.INFO.intValue()) {
  94                                         freenet.support.Logger.minor(loggerClass, logRecord.getMessage(), logRecord.getThrown());
  95                                 } else if (recordLevel < Level.WARNING.intValue()) {
  96                                         freenet.support.Logger.normal(loggerClass, logRecord.getMessage(), logRecord.getThrown());
  97                                 } else if (recordLevel < Level.SEVERE.intValue()) {
  98                                         freenet.support.Logger.warning(loggerClass, logRecord.getMessage(), logRecord.getThrown());
  99                                 } else {
 100                                         freenet.support.Logger.error(loggerClass, logRecord.getMessage(), logRecord.getThrown());
 101                                 }
 102                         }
 103                 });
 104         }
 105
 106         /** The version. */
 107         public static final Version VERSION = new Version(0, 8, 7);
 108
 109         /** The logger. */
 110         private static final Logger logger = Logging.getLogger(SonePlugin.class);
 111
 112         /** The plugin respirator. */
 113         private PluginRespirator pluginRespirator;
 114
 115         /** The core. */
 116         private Core core;
 117
 118         /** The web interface. */
 119         private WebInterface webInterface;
 120
 121         /** The FCP interface. */
 122         private FcpInterface fcpInterface;
 123
 124         /** The l10n helper. */
 125         private PluginL10n l10n;
 126
 127         /** The web of trust connector. */
 128         private WebOfTrustConnector webOfTrustConnector;
 129
 130         //
 131         // ACCESSORS
 132         //
 133
 134         /**
 135          * Returns the plugin respirator for this plugin.
 136          *
 137          * @return The plugin respirator
 138          */
 139         public PluginRespirator pluginRespirator() {
 140                 return pluginRespirator;
 141         }
 142
 143         /**
 144          * Returns the core started by this plugin.
 145          *
 146          * @return The core
 147          */
 148         public Core core() {
 149                 return core;
 150         }
 151
 152         /**
 153          * Returns the plugin’s l10n helper.
 154          *
 155          * @return The plugin’s l10n helper
 156          */
 157         public PluginL10n l10n() {
 158                 return l10n;
 159         }
 160
 161         //
 162         // FREDPLUGIN METHODS
 163         //
 164
 165         /**
 166          * {@inheritDoc}
 167          */
 168         @Override
 169         public void runPlugin(PluginRespirator pluginRespirator) {
 170                 this.pluginRespirator = pluginRespirator;
 171
 172                 /* create a configuration. */
 173                 Configuration oldConfiguration;
 174                 Configuration newConfiguration = null;
 175                 boolean firstStart = !new File("sone.properties").exists();
 176                 boolean newConfig = false;
 177                 try {
 178                         oldConfiguration = new Configuration(new MapConfigurationBackend(new File("sone.properties"), false));
 179                         newConfiguration = oldConfiguration;
 180                 } catch (ConfigurationException ce1) {
 181                         newConfig = true;
 182                         logger.log(Level.INFO, "Could not load configuration file, trying plugin store…", ce1);
 183                         try {
 184                                 newConfiguration = new Configuration(new MapConfigurationBackend(new File("sone.properties"), true));
 185                                 logger.log(Level.INFO, "Created new configuration file.");
 186                         } catch (ConfigurationException ce2) {
 187                                 logger.log(Level.SEVERE, "Could not create configuration file, using Plugin Store!", ce2);
 188                         }
 189                         try {
 190                                 oldConfiguration = new Configuration(new PluginStoreConfigurationBackend(pluginRespirator));
 191                                 logger.log(Level.INFO, "Plugin store loaded.");
 192                         } catch (DatabaseDisabledException dde1) {
 193                                 logger.log(Level.SEVERE, "Could not load any configuration, using empty configuration!");
 194                                 oldConfiguration = new Configuration(new MapConfigurationBackend());
 195                         }
 196                 }
 197
 198                 final Configuration startConfiguration = oldConfiguration;
 199                 final EventBus eventBus = new EventBus();
 200
 201                 /* Freenet injector configuration. */
 202                 AbstractModule freenetModule = new AbstractModule() {
 203
 204                         @Override
 205                         @SuppressWarnings("synthetic-access")
 206                         protected void configure() {
 207                                 bind(PluginRespirator.class).toInstance(SonePlugin.this.pluginRespirator);
 208                                 bind(Node.class).toInstance(SonePlugin.this.pluginRespirator.getNode());
 209                         }
 210                 };
 211                 /* Sone injector configuration. */
 212                 AbstractModule soneModule = new AbstractModule() {
 213
 214                         @Override
 215                         protected void configure() {
 216                                 bind(Core.class).in(Singleton.class);
 217                                 bind(MemoryDatabase.class).in(Singleton.class);
 218                                 bind(EventBus.class).toInstance(eventBus);
 219                                 bind(Configuration.class).toInstance(startConfiguration);
 220                                 bind(FreenetInterface.class).in(Singleton.class);
 221                                 bind(PluginConnector.class).in(Singleton.class);
 222                                 bind(WebOfTrustConnector.class).in(Singleton.class);
 223                                 bind(WebOfTrustUpdater.class).in(Singleton.class);
 224                                 bind(IdentityManager.class).in(Singleton.class);
 225                                 bind(String.class).annotatedWith(Names.named("WebOfTrustContext")).toInstance("Sone");
 226                                 bind(SonePlugin.class).toInstance(SonePlugin.this);
 227                                 bind(FcpInterface.class).in(Singleton.class);
 228                                 bind(Database.class).to(MemoryDatabase.class);
 229                                 bind(PostReplyBuilderFactory.class).to(MemoryDatabase.class);
 230                                 bind(SoneProvider.class).to(Core.class).in(Singleton.class);
 231                                 bind(PostProvider.class).to(MemoryDatabase.class);
 232                                 bindListener(Matchers.any(), new TypeListener() {
 233
 234                                         @Override
 235                                         public <I> void hear(TypeLiteral<I> typeLiteral, TypeEncounter<I> typeEncounter) {
 236                                                 typeEncounter.register(new InjectionListener<I>() {
 237
 238                                                         @Override
 239                                                         public void afterInjection(I injectee) {
 240                                                                 eventBus.register(injectee);
 241                                                         }
 242                                                 });
 243                                         }
 244                                 });
 245                         }
 246
 247                 };
 248                 Injector injector = Guice.createInjector(freenetModule, soneModule);
 249                 core = injector.getInstance(Core.class);
 250
 251                 /* create web of trust connector. */
 252                 webOfTrustConnector = injector.getInstance(WebOfTrustConnector.class);
 253
 254                 /* create FCP interface. */
 255                 fcpInterface = injector.getInstance(FcpInterface.class);
 256                 core.setFcpInterface(fcpInterface);
 257
 258                 /* create the web interface. */
 259                 webInterface = injector.getInstance(WebInterface.class);
 260
 261                 boolean startupFailed = true;
 262                 try {
 263
 264                         /* start core! */
 265                         core.start();
 266                         if ((newConfiguration != null) && (oldConfiguration != newConfiguration)) {
 267                                 logger.log(Level.INFO, "Setting configuration to file-based configuration.");
 268                                 core.setConfiguration(newConfiguration);
 269                         }
 270                         webInterface.start();
 271                         webInterface.setFirstStart(firstStart);
 272                         webInterface.setNewConfig(newConfig);
 273                         startupFailed = false;
 274                 } finally {
 275                         if (startupFailed) {
 276                                 /*
 277                                  * we let the exception bubble up but shut the logging down so
 278                                  * that the logfile is not swamped by the installed logging
 279                                  * handlers of the failed instances.
 280                                  */
 281                                 Logging.shutdown();
 282                         }
 283                 }
 284         }
 285
 286         /**
 287          * {@inheritDoc}
 288          */
 289         @Override
 290         public void terminate() {
 291                 try {
 292                         /* stop the web interface. */
 293                         webInterface.stop();
 294
 295                         /* stop the core. */
 296                         core.stop();
 297
 298                         /* stop the web of trust connector. */
 299                         webOfTrustConnector.stop();
 300                 } catch (Throwable t1) {
 301                         logger.log(Level.SEVERE, "Error while shutting down!", t1);
 302                 } finally {
 303                         /* shutdown logger. */
 304                         Logging.shutdown();
 305                 }
 306         }
 307
 308         //
 309         // INTERFACE FredPluginFCP
 310         //
 311
 312         /**
 313          * {@inheritDoc}
 314          */
 315         @Override
 316         public void handle(PluginReplySender pluginReplySender, SimpleFieldSet parameters, Bucket data, int accessType) {
 317                 fcpInterface.handle(pluginReplySender, parameters, data, accessType);
 318         }
 319
 320         //
 321         // INTERFACE FredPluginL10n
 322         //
 323
 324         /**
 325          * {@inheritDoc}
 326          */
 327         @Override
 328         public String getString(String key) {
 329                 return l10n.getBase().getString(key);
 330         }
 331
 332         /**
 333          * {@inheritDoc}
 334          */
 335         @Override
 336         public void setLanguage(LANGUAGE newLanguage) {
 337                 l10n = new PluginL10n(this, newLanguage);
 338         }
 339
 340         //
 341         // INTERFACE FredPluginBaseL10n
 342         //
 343
 344         /**
 345          * {@inheritDoc}
 346          */
 347         @Override
 348         public String getL10nFilesBasePath() {
 349                 return "i18n";
 350         }
 351
 352         /**
 353          * {@inheritDoc}
 354          */
 355         @Override
 356         public String getL10nFilesMask() {
 357                 return "sone.${lang}.properties";
 358         }
 359
 360         /**
 361          * {@inheritDoc}
 362          */
 363         @Override
 364         public String getL10nOverrideFilesMask() {
 365                 return "sone.${lang}.override.properties";
 366         }
 367
 368         /**
 369          * {@inheritDoc}
 370          */
 371         @Override
 372         public ClassLoader getPluginClassLoader() {
 373                 return SonePlugin.class.getClassLoader();
 374         }
 375
 376         //
 377         // INTERFACE FredPluginVersioned
 378         //
 379
 380         /**
 381          * {@inheritDoc}
 382          */
 383         @Override
 384         public String getVersion() {
 385                 return VERSION.toString();
 386         }
 387
 388 }