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