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 freenet.client.async.DatabaseDisabledException;
  46 import freenet.l10n.BaseL10n.LANGUAGE;
  47 import freenet.l10n.PluginL10n;
  48 import freenet.node.Node;
  49 import freenet.pluginmanager.FredPlugin;
  50 import freenet.pluginmanager.FredPluginBaseL10n;
  51 import freenet.pluginmanager.FredPluginFCP;
  52 import freenet.pluginmanager.FredPluginL10n;
  53 import freenet.pluginmanager.FredPluginThreadless;
  54 import freenet.pluginmanager.FredPluginVersioned;
  55 import freenet.pluginmanager.PluginReplySender;
  56 import freenet.pluginmanager.PluginRespirator;
  57 import freenet.support.SimpleFieldSet;
  58 import freenet.support.api.Bucket;
  59
  60 import com.google.common.eventbus.EventBus;
  61 import com.google.inject.AbstractModule;
  62 import com.google.inject.Guice;
  63 import com.google.inject.Injector;
  64 import com.google.inject.Singleton;
  65 import com.google.inject.TypeLiteral;
  66 import com.google.inject.matcher.Matchers;
  67 import com.google.inject.name.Names;
  68 import com.google.inject.spi.InjectionListener;
  69 import com.google.inject.spi.TypeEncounter;
  70 import com.google.inject.spi.TypeListener;
  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         @Override
 164         public void runPlugin(PluginRespirator pluginRespirator) {
 165                 this.pluginRespirator = pluginRespirator;
 166
 167                 /* create a configuration. */
 168                 Configuration oldConfiguration;
 169                 Configuration newConfiguration = null;
 170                 boolean firstStart = !new File("sone.properties").exists();
 171                 boolean newConfig = false;
 172                 try {
 173                         oldConfiguration = new Configuration(new MapConfigurationBackend(new File("sone.properties"), false));
 174                         newConfiguration = oldConfiguration;
 175                 } catch (ConfigurationException ce1) {
 176                         newConfig = true;
 177                         logger.log(Level.INFO, "Could not load configuration file, trying plugin store…", ce1);
 178                         try {
 179                                 newConfiguration = new Configuration(new MapConfigurationBackend(new File("sone.properties"), true));
 180                                 logger.log(Level.INFO, "Created new configuration file.");
 181                         } catch (ConfigurationException ce2) {
 182                                 logger.log(Level.SEVERE, "Could not create configuration file, using Plugin Store!", ce2);
 183                         }
 184                         try {
 185                                 oldConfiguration = new Configuration(new PluginStoreConfigurationBackend(pluginRespirator));
 186                                 logger.log(Level.INFO, "Plugin store loaded.");
 187                         } catch (DatabaseDisabledException dde1) {
 188                                 logger.log(Level.SEVERE, "Could not load any configuration, using empty configuration!");
 189                                 oldConfiguration = new Configuration(new MapConfigurationBackend());
 190                         }
 191                 }
 192
 193                 final Configuration startConfiguration = oldConfiguration;
 194                 final EventBus eventBus = new EventBus();
 195
 196                 /* Freenet injector configuration. */
 197                 AbstractModule freenetModule = new AbstractModule() {
 198
 199                         @Override
 200                         @SuppressWarnings("synthetic-access")
 201                         protected void configure() {
 202                                 bind(PluginRespirator.class).toInstance(SonePlugin.this.pluginRespirator);
 203                                 bind(Node.class).toInstance(SonePlugin.this.pluginRespirator.getNode());
 204                         }
 205                 };
 206                 /* Sone injector configuration. */
 207                 AbstractModule soneModule = new AbstractModule() {
 208
 209                         @Override
 210                         protected void configure() {
 211                                 bind(Core.class).in(Singleton.class);
 212                                 bind(MemoryDatabase.class).in(Singleton.class);
 213                                 bind(EventBus.class).toInstance(eventBus);
 214                                 bind(Configuration.class).toInstance(startConfiguration);
 215                                 bind(FreenetInterface.class).in(Singleton.class);
 216                                 bind(PluginConnector.class).in(Singleton.class);
 217                                 bind(WebOfTrustConnector.class).in(Singleton.class);
 218                                 bind(WebOfTrustUpdater.class).in(Singleton.class);
 219                                 bind(IdentityManager.class).in(Singleton.class);
 220                                 bind(String.class).annotatedWith(Names.named("WebOfTrustContext")).toInstance("Sone");
 221                                 bind(SonePlugin.class).toInstance(SonePlugin.this);
 222                                 bind(FcpInterface.class).in(Singleton.class);
 223                                 bind(Database.class).to(MemoryDatabase.class);
 224                                 bind(SoneProvider.class).to(Core.class).in(Singleton.class);
 225                                 bind(PostProvider.class).to(MemoryDatabase.class);
 226                                 bindListener(Matchers.any(), new TypeListener() {
 227
 228                                         @Override
 229                                         public <I> void hear(TypeLiteral<I> typeLiteral, TypeEncounter<I> typeEncounter) {
 230                                                 typeEncounter.register(new InjectionListener<I>() {
 231
 232                                                         @Override
 233                                                         public void afterInjection(I injectee) {
 234                                                                 eventBus.register(injectee);
 235                                                         }
 236                                                 });
 237                                         }
 238                                 });
 239                         }
 240
 241                 };
 242                 Injector injector = Guice.createInjector(freenetModule, soneModule);
 243                 core = injector.getInstance(Core.class);
 244
 245                 /* create web of trust connector. */
 246                 webOfTrustConnector = injector.getInstance(WebOfTrustConnector.class);
 247
 248                 /* create FCP interface. */
 249                 fcpInterface = injector.getInstance(FcpInterface.class);
 250                 core.setFcpInterface(fcpInterface);
 251
 252                 /* create the web interface. */
 253                 webInterface = injector.getInstance(WebInterface.class);
 254
 255                 boolean startupFailed = true;
 256                 try {
 257
 258                         /* start core! */
 259                         core.start();
 260                         if ((newConfiguration != null) && (oldConfiguration != newConfiguration)) {
 261                                 logger.log(Level.INFO, "Setting configuration to file-based configuration.");
 262                                 core.setConfiguration(newConfiguration);
 263                         }
 264                         webInterface.start();
 265                         webInterface.setFirstStart(firstStart);
 266                         webInterface.setNewConfig(newConfig);
 267                         startupFailed = false;
 268                 } finally {
 269                         if (startupFailed) {
 270                                 /*
 271                                  * we let the exception bubble up but shut the logging down so
 272                                  * that the logfile is not swamped by the installed logging
 273                                  * handlers of the failed instances.
 274                                  */
 275                                 Logging.shutdown();
 276                         }
 277                 }
 278         }
 279
 280         @Override
 281         public void terminate() {
 282                 try {
 283                         /* stop the web interface. */
 284                         webInterface.stop();
 285
 286                         /* stop the core. */
 287                         core.stop();
 288
 289                         /* stop the web of trust connector. */
 290                         webOfTrustConnector.stop();
 291                 } catch (Throwable t1) {
 292                         logger.log(Level.SEVERE, "Error while shutting down!", t1);
 293                 } finally {
 294                         /* shutdown logger. */
 295                         Logging.shutdown();
 296                 }
 297         }
 298
 299         //
 300         // INTERFACE FredPluginFCP
 301         //
 302
 303         @Override
 304         public void handle(PluginReplySender pluginReplySender, SimpleFieldSet parameters, Bucket data, int accessType) {
 305                 fcpInterface.handle(pluginReplySender, parameters, data, accessType);
 306         }
 307
 308         //
 309         // INTERFACE FredPluginL10n
 310         //
 311
 312         @Override
 313         public String getString(String key) {
 314                 return l10n.getBase().getString(key);
 315         }
 316
 317         @Override
 318         public void setLanguage(LANGUAGE newLanguage) {
 319                 l10n = new PluginL10n(this, newLanguage);
 320         }
 321
 322         //
 323         // INTERFACE FredPluginBaseL10n
 324         //
 325
 326         @Override
 327         public String getL10nFilesBasePath() {
 328                 return "i18n";
 329         }
 330
 331         @Override
 332         public String getL10nFilesMask() {
 333                 return "sone.${lang}.properties";
 334         }
 335
 336         @Override
 337         public String getL10nOverrideFilesMask() {
 338                 return "sone.${lang}.override.properties";
 339         }
 340
 341         @Override
 342         public ClassLoader getPluginClassLoader() {
 343                 return SonePlugin.class.getClassLoader();
 344         }
 345
 346         //
 347         // INTERFACE FredPluginVersioned
 348         //
 349
 350         @Override
 351         public String getVersion() {
 352                 return VERSION.toString();
 353         }
 354
 355 }