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

   1 /*
   2  * Sone - SonePlugin.java - Copyright © 2010–2016 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 static com.google.common.base.Optional.of;
  21 import static java.util.logging.Logger.getLogger;
  22
  23 import java.io.File;
  24 import java.util.logging.Handler;
  25 import java.util.logging.Level;
  26 import java.util.logging.LogRecord;
  27 import java.util.logging.Logger;
  28
  29 import net.pterodactylus.sone.core.Core;
  30 import net.pterodactylus.sone.fcp.FcpInterface;
  31 import net.pterodactylus.sone.freenet.PluginStoreConfigurationBackend;
  32 import net.pterodactylus.sone.freenet.wot.Context;
  33 import net.pterodactylus.sone.freenet.wot.WebOfTrustConnector;
  34 import net.pterodactylus.sone.web.WebInterface;
  35 import net.pterodactylus.util.config.Configuration;
  36 import net.pterodactylus.util.config.ConfigurationException;
  37 import net.pterodactylus.util.config.MapConfigurationBackend;
  38 import net.pterodactylus.util.version.Version;
  39
  40 import com.google.common.base.Optional;
  41 import com.google.common.cache.CacheBuilder;
  42 import com.google.common.cache.CacheLoader;
  43 import com.google.common.cache.LoadingCache;
  44 import com.google.common.eventbus.EventBus;
  45 import com.google.inject.AbstractModule;
  46 import com.google.inject.Guice;
  47 import com.google.inject.Injector;
  48 import com.google.inject.TypeLiteral;
  49 import com.google.inject.matcher.Matchers;
  50 import com.google.inject.spi.InjectionListener;
  51 import com.google.inject.spi.TypeEncounter;
  52 import com.google.inject.spi.TypeListener;
  53
  54 import freenet.client.async.PersistenceDisabledException;
  55 import freenet.l10n.BaseL10n.LANGUAGE;
  56 import freenet.l10n.PluginL10n;
  57 import freenet.node.Node;
  58 import freenet.pluginmanager.FredPlugin;
  59 import freenet.pluginmanager.FredPluginBaseL10n;
  60 import freenet.pluginmanager.FredPluginFCP;
  61 import freenet.pluginmanager.FredPluginL10n;
  62 import freenet.pluginmanager.FredPluginThreadless;
  63 import freenet.pluginmanager.FredPluginVersioned;
  64 import freenet.pluginmanager.PluginReplySender;
  65 import freenet.pluginmanager.PluginRespirator;
  66 import freenet.support.SimpleFieldSet;
  67 import freenet.support.api.Bucket;
  68
  69 /**
  70  * This class interfaces with Freenet. It is the class that is loaded by the
  71  * node and starts up the whole Sone system.
  72  *
  73  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  74  */
  75 public class SonePlugin implements FredPlugin, FredPluginFCP, FredPluginL10n, FredPluginBaseL10n, FredPluginThreadless, FredPluginVersioned {
  76
  77         private static final Logger soneLogger = getLogger("net.pterodactylus.sone");
  78
  79         static {
  80                 /* initialize logging. */
  81                 soneLogger.setUseParentHandlers(false);
  82                 soneLogger.addHandler(new Handler() {
  83                         private final LoadingCache<String, Class<?>> classCache = CacheBuilder.newBuilder()
  84                                         .build(new CacheLoader<String, Class<?>>() {
  85                                                 @Override
  86                                                 public Class<?> load(String key) throws Exception {
  87                                                         return Class.forName(key);
  88                                                 }
  89                                         });
  90
  91                         @Override
  92                         public void publish(LogRecord logRecord) {
  93                                 int recordLevel = logRecord.getLevel().intValue();
  94                                 Class<?> loggingClass = classCache.getUnchecked(logRecord.getLoggerName());
  95                                 if (recordLevel < Level.FINE.intValue()) {
  96                                         freenet.support.Logger.debug(loggingClass, logRecord.getMessage(), logRecord.getThrown());
  97                                 } else if (recordLevel < Level.INFO.intValue()) {
  98                                         freenet.support.Logger.minor(loggingClass, logRecord.getMessage(), logRecord.getThrown());
  99                                 } else if (recordLevel < Level.WARNING.intValue()) {
 100                                         freenet.support.Logger.normal(loggingClass, logRecord.getMessage(), logRecord.getThrown());
 101                                 } else if (recordLevel < Level.SEVERE.intValue()) {
 102                                         freenet.support.Logger.warning(loggingClass, logRecord.getMessage(), logRecord.getThrown());
 103                                 } else {
 104                                         freenet.support.Logger.error(loggingClass, logRecord.getMessage(), logRecord.getThrown());
 105                                 }
 106                         }
 107
 108                         @Override
 109                         public void flush() {
 110                         }
 111
 112                         @Override
 113                         public void close() {
 114                         }
 115                 });
 116         }
 117
 118         /** The version. */
 119         private static final Version VERSION = new Version(0, 9, 6);
 120
 121         /** The current year at time of release. */
 122         private static final int YEAR = 2016;
 123         private static final String SONE_HOMEPAGE = "USK@nwa8lHa271k2QvJ8aa0Ov7IHAV-DFOCFgmDt3X6BpCI,DuQSUZiI~agF8c-6tjsFFGuZ8eICrzWCILB60nT8KKo,AQACAAE/sone/";
 124         private static final int LATEST_EDITION = 73;
 125
 126         /** The logger. */
 127         private static final Logger logger = getLogger(SonePlugin.class.getName());
 128
 129         /** The plugin respirator. */
 130         private PluginRespirator pluginRespirator;
 131
 132         /** The core. */
 133         private Core core;
 134
 135         /** The web interface. */
 136         private WebInterface webInterface;
 137
 138         /** The FCP interface. */
 139         private FcpInterface fcpInterface;
 140
 141         /** The l10n helper. */
 142         private PluginL10n l10n;
 143
 144         /** The web of trust connector. */
 145         private WebOfTrustConnector webOfTrustConnector;
 146
 147         //
 148         // ACCESSORS
 149         //
 150
 151         /**
 152          * Returns the plugin respirator for this plugin.
 153          *
 154          * @return The plugin respirator
 155          */
 156         public PluginRespirator pluginRespirator() {
 157                 return pluginRespirator;
 158         }
 159
 160         /**
 161          * Returns the core started by this plugin.
 162          *
 163          * @return The core
 164          */
 165         public Core core() {
 166                 return core;
 167         }
 168
 169         /**
 170          * Returns the plugin’s l10n helper.
 171          *
 172          * @return The plugin’s l10n helper
 173          */
 174         public PluginL10n l10n() {
 175                 return l10n;
 176         }
 177
 178         public static String getPluginVersion() {
 179                 return VERSION.toString();
 180         }
 181
 182         public static int getYear() {
 183                 return YEAR;
 184         }
 185
 186         public static String getHomepage() {
 187                 return SONE_HOMEPAGE + LATEST_EDITION;
 188         }
 189
 190         public static long getLatestEdition() {
 191                 return LATEST_EDITION;
 192         }
 193
 194         //
 195         // FREDPLUGIN METHODS
 196         //
 197
 198         /**
 199          * {@inheritDoc}
 200          */
 201         @Override
 202         public void runPlugin(PluginRespirator pluginRespirator) {
 203                 this.pluginRespirator = pluginRespirator;
 204
 205                 /* create a configuration. */
 206                 Configuration oldConfiguration;
 207                 Configuration newConfiguration = null;
 208                 boolean firstStart = !new File("sone.properties").exists();
 209                 boolean newConfig = false;
 210                 try {
 211                         oldConfiguration = new Configuration(new MapConfigurationBackend(new File("sone.properties"), false));
 212                         newConfiguration = oldConfiguration;
 213                 } catch (ConfigurationException ce1) {
 214                         newConfig = true;
 215                         logger.log(Level.INFO, "Could not load configuration file, trying plugin store…", ce1);
 216                         try {
 217                                 newConfiguration = new Configuration(new MapConfigurationBackend(new File("sone.properties"), true));
 218                                 logger.log(Level.INFO, "Created new configuration file.");
 219                         } catch (ConfigurationException ce2) {
 220                                 logger.log(Level.SEVERE, "Could not create configuration file, using Plugin Store!", ce2);
 221                         }
 222                         try {
 223                                 oldConfiguration = new Configuration(new PluginStoreConfigurationBackend(pluginRespirator));
 224                                 logger.log(Level.INFO, "Plugin store loaded.");
 225                         } catch (PersistenceDisabledException pde1) {
 226                                 logger.log(Level.SEVERE, "Could not load any configuration, using empty configuration!");
 227                                 oldConfiguration = new Configuration(new MapConfigurationBackend());
 228                         }
 229                 }
 230
 231                 final Configuration startConfiguration;
 232                 if ((newConfiguration != null) && (oldConfiguration != newConfiguration)) {
 233                         logger.log(Level.INFO, "Setting configuration to file-based configuration.");
 234                         startConfiguration = newConfiguration;
 235                 } else {
 236                         startConfiguration = oldConfiguration;
 237                 }
 238                 final EventBus eventBus = new EventBus();
 239
 240                 /* Freenet injector configuration. */
 241                 AbstractModule freenetModule = new AbstractModule() {
 242
 243                         @Override
 244                         @SuppressWarnings("synthetic-access")
 245                         protected void configure() {
 246                                 bind(PluginRespirator.class).toInstance(SonePlugin.this.pluginRespirator);
 247                                 bind(Node.class).toInstance(SonePlugin.this.pluginRespirator.getNode());
 248                         }
 249                 };
 250                 /* Sone injector configuration. */
 251                 AbstractModule soneModule = new AbstractModule() {
 252
 253                         @Override
 254                         protected void configure() {
 255                                 bind(EventBus.class).toInstance(eventBus);
 256                                 bind(Configuration.class).toInstance(startConfiguration);
 257                                 Context context = new Context("Sone");
 258                                 bind(Context.class).toInstance(context);
 259                                 bind(getOptionalContextTypeLiteral()).toInstance(of(context));
 260                                 bind(SonePlugin.class).toInstance(SonePlugin.this);
 261                                 bind(Version.class).toInstance(VERSION);
 262                                 if (startConfiguration.getBooleanValue("Developer.LoadFromFilesystem").getValue(false)) {
 263                                         String path = startConfiguration.getStringValue("Developer.FilesystemPath").getValue(null);
 264                                         if (path != null) {
 265                                                 bind(Loaders.class).toInstance(new DebugLoaders(path));
 266                                         }
 267                                 }
 268                                 bindListener(Matchers.any(), new TypeListener() {
 269
 270                                         @Override
 271                                         public <I> void hear(TypeLiteral<I> typeLiteral, TypeEncounter<I> typeEncounter) {
 272                                                 typeEncounter.register(new InjectionListener<I>() {
 273
 274                                                         @Override
 275                                                         public void afterInjection(I injectee) {
 276                                                                 eventBus.register(injectee);
 277                                                         }
 278                                                 });
 279                                         }
 280                                 });
 281                         }
 282
 283                         private TypeLiteral<Optional<Context>> getOptionalContextTypeLiteral() {
 284                                 return new TypeLiteral<Optional<Context>>() {
 285                                 };
 286                         }
 287
 288                 };
 289                 Injector injector = Guice.createInjector(freenetModule, soneModule);
 290                 core = injector.getInstance(Core.class);
 291
 292                 /* create web of trust connector. */
 293                 webOfTrustConnector = injector.getInstance(WebOfTrustConnector.class);
 294
 295                 /* create FCP interface. */
 296                 fcpInterface = injector.getInstance(FcpInterface.class);
 297
 298                 /* create the web interface. */
 299                 webInterface = injector.getInstance(WebInterface.class);
 300
 301                 /* start core! */
 302                 core.start();
 303                 webInterface.start();
 304                 webInterface.setFirstStart(firstStart);
 305                 webInterface.setNewConfig(newConfig);
 306         }
 307
 308         /**
 309          * {@inheritDoc}
 310          */
 311         @Override
 312         public void terminate() {
 313                 try {
 314                         /* stop the web interface. */
 315                         webInterface.stop();
 316
 317                         /* stop the core. */
 318                         core.stop();
 319
 320                         /* stop the web of trust connector. */
 321                         webOfTrustConnector.stop();
 322                 } catch (Throwable t1) {
 323                         logger.log(Level.SEVERE, "Error while shutting down!", t1);
 324                 } finally {
 325                         deregisterLoggerHandlers();
 326                 }
 327         }
 328
 329         private void deregisterLoggerHandlers() {
 330                 for (Handler handler : soneLogger.getHandlers()) {
 331                         soneLogger.removeHandler(handler);
 332                 }
 333         }
 334
 335         //
 336         // INTERFACE FredPluginFCP
 337         //
 338
 339         /**
 340          * {@inheritDoc}
 341          */
 342         @Override
 343         public void handle(PluginReplySender pluginReplySender, SimpleFieldSet parameters, Bucket data, int accessType) {
 344                 fcpInterface.handle(pluginReplySender, parameters, data, accessType);
 345         }
 346
 347         //
 348         // INTERFACE FredPluginL10n
 349         //
 350
 351         /**
 352          * {@inheritDoc}
 353          */
 354         @Override
 355         public String getString(String key) {
 356                 return l10n.getBase().getString(key);
 357         }
 358
 359         /**
 360          * {@inheritDoc}
 361          */
 362         @Override
 363         public void setLanguage(LANGUAGE newLanguage) {
 364                 l10n = new PluginL10n(this, newLanguage);
 365         }
 366
 367         //
 368         // INTERFACE FredPluginBaseL10n
 369         //
 370
 371         /**
 372          * {@inheritDoc}
 373          */
 374         @Override
 375         public String getL10nFilesBasePath() {
 376                 return "i18n";
 377         }
 378
 379         /**
 380          * {@inheritDoc}
 381          */
 382         @Override
 383         public String getL10nFilesMask() {
 384                 return "sone.${lang}.properties";
 385         }
 386
 387         /**
 388          * {@inheritDoc}
 389          */
 390         @Override
 391         public String getL10nOverrideFilesMask() {
 392                 return "sone.${lang}.override.properties";
 393         }
 394
 395         /**
 396          * {@inheritDoc}
 397          */
 398         @Override
 399         public ClassLoader getPluginClassLoader() {
 400                 return SonePlugin.class.getClassLoader();
 401         }
 402
 403         //
 404         // INTERFACE FredPluginVersioned
 405         //
 406
 407         /**
 408          * {@inheritDoc}
 409          */
 410         @Override
 411         public String getVersion() {
 412                 return VERSION.toString();
 413         }
 414
 415 }