src/main/java/net/pterodactylus/sone/core/Core.java

   1 /*
   2  * Sone - Core.java - Copyright © 2010 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.core;
  19
  20 import java.net.MalformedURLException;
  21 import java.util.ArrayList;
  22 import java.util.Collections;
  23 import java.util.HashMap;
  24 import java.util.HashSet;
  25 import java.util.List;
  26 import java.util.Map;
  27 import java.util.Set;
  28 import java.util.Map.Entry;
  29 import java.util.concurrent.ExecutorService;
  30 import java.util.concurrent.Executors;
  31 import java.util.logging.Level;
  32 import java.util.logging.Logger;
  33
  34 import net.pterodactylus.sone.core.Options.DefaultOption;
  35 import net.pterodactylus.sone.core.Options.Option;
  36 import net.pterodactylus.sone.core.Options.OptionWatcher;
  37 import net.pterodactylus.sone.data.Client;
  38 import net.pterodactylus.sone.data.Post;
  39 import net.pterodactylus.sone.data.Profile;
  40 import net.pterodactylus.sone.data.Profile.Field;
  41 import net.pterodactylus.sone.data.Reply;
  42 import net.pterodactylus.sone.data.Sone;
  43 import net.pterodactylus.sone.fcp.FcpInterface;
  44 import net.pterodactylus.sone.fcp.FcpInterface.FullAccessRequired;
  45 import net.pterodactylus.sone.freenet.wot.Identity;
  46 import net.pterodactylus.sone.freenet.wot.IdentityListener;
  47 import net.pterodactylus.sone.freenet.wot.IdentityManager;
  48 import net.pterodactylus.sone.freenet.wot.OwnIdentity;
  49 import net.pterodactylus.sone.freenet.wot.Trust;
  50 import net.pterodactylus.sone.freenet.wot.WebOfTrustException;
  51 import net.pterodactylus.sone.main.SonePlugin;
  52 import net.pterodactylus.util.config.Configuration;
  53 import net.pterodactylus.util.config.ConfigurationException;
  54 import net.pterodactylus.util.logging.Logging;
  55 import net.pterodactylus.util.number.Numbers;
  56 import net.pterodactylus.util.service.AbstractService;
  57 import net.pterodactylus.util.thread.Ticker;
  58 import net.pterodactylus.util.validation.EqualityValidator;
  59 import net.pterodactylus.util.validation.IntegerRangeValidator;
  60 import net.pterodactylus.util.validation.OrValidator;
  61 import net.pterodactylus.util.validation.Validation;
  62 import net.pterodactylus.util.version.Version;
  63 import freenet.keys.FreenetURI;
  64
  65 /**
  66  * The Sone core.
  67  *
  68  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  69  */
  70 public class Core extends AbstractService implements IdentityListener, UpdateListener, SoneProvider, PostProvider, SoneInsertListener {
  71
  72         /**
  73          * Enumeration for the possible states of a {@link Sone}.
  74          *
  75          * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  76          */
  77         public enum SoneStatus {
  78
  79                 /** The Sone is unknown, i.e. not yet downloaded. */
  80                 unknown,
  81
  82                 /** The Sone is idle, i.e. not being downloaded or inserted. */
  83                 idle,
  84
  85                 /** The Sone is currently being inserted. */
  86                 inserting,
  87
  88                 /** The Sone is currently being downloaded. */
  89                 downloading,
  90         }
  91
  92         /** The logger. */
  93         private static final Logger logger = Logging.getLogger(Core.class);
  94
  95         /** The options. */
  96         private final Options options = new Options();
  97
  98         /** The preferences. */
  99         private final Preferences preferences = new Preferences(options);
 100
 101         /** The core listener manager. */
 102         private final CoreListenerManager coreListenerManager = new CoreListenerManager(this);
 103
 104         /** The configuration. */
 105         private Configuration configuration;
 106
 107         /** Whether we’re currently saving the configuration. */
 108         private boolean storingConfiguration = false;
 109
 110         /** The identity manager. */
 111         private final IdentityManager identityManager;
 112
 113         /** Interface to freenet. */
 114         private final FreenetInterface freenetInterface;
 115
 116         /** The Sone downloader. */
 117         private final SoneDownloader soneDownloader;
 118
 119         /** Sone downloader thread-pool. */
 120         private final ExecutorService soneDownloaders = Executors.newFixedThreadPool(10);
 121
 122         /** The update checker. */
 123         private final UpdateChecker updateChecker;
 124
 125         /** The FCP interface. */
 126         private volatile FcpInterface fcpInterface;
 127
 128         /** The Sones’ statuses. */
 129         /* synchronize access on itself. */
 130         private final Map<Sone, SoneStatus> soneStatuses = new HashMap<Sone, SoneStatus>();
 131
 132         /** Locked local Sones. */
 133         /* synchronize on itself. */
 134         private final Set<Sone> lockedSones = new HashSet<Sone>();
 135
 136         /** Sone inserters. */
 137         /* synchronize access on this on localSones. */
 138         private final Map<Sone, SoneInserter> soneInserters = new HashMap<Sone, SoneInserter>();
 139
 140         /** Sone rescuers. */
 141         /* synchronize access on this on localSones. */
 142         private final Map<Sone, SoneRescuer> soneRescuers = new HashMap<Sone, SoneRescuer>();
 143
 144         /** All local Sones. */
 145         /* synchronize access on this on itself. */
 146         private Map<String, Sone> localSones = new HashMap<String, Sone>();
 147
 148         /** All remote Sones. */
 149         /* synchronize access on this on itself. */
 150         private Map<String, Sone> remoteSones = new HashMap<String, Sone>();
 151
 152         /** All new Sones. */
 153         private Set<String> newSones = new HashSet<String>();
 154
 155         /** All known Sones. */
 156         /* synchronize access on {@link #newSones}. */
 157         private Set<String> knownSones = new HashSet<String>();
 158
 159         /** All posts. */
 160         private Map<String, Post> posts = new HashMap<String, Post>();
 161
 162         /** All new posts. */
 163         private Set<String> newPosts = new HashSet<String>();
 164
 165         /** All known posts. */
 166         /* synchronize access on {@link #newPosts}. */
 167         private Set<String> knownPosts = new HashSet<String>();
 168
 169         /** All replies. */
 170         private Map<String, Reply> replies = new HashMap<String, Reply>();
 171
 172         /** All new replies. */
 173         private Set<String> newReplies = new HashSet<String>();
 174
 175         /** All known replies. */
 176         private Set<String> knownReplies = new HashSet<String>();
 177
 178         /** All bookmarked posts. */
 179         /* synchronize access on itself. */
 180         private Set<String> bookmarkedPosts = new HashSet<String>();
 181
 182         /** Trusted identities, sorted by own identities. */
 183         private Map<OwnIdentity, Set<Identity>> trustedIdentities = Collections.synchronizedMap(new HashMap<OwnIdentity, Set<Identity>>());
 184
 185         /** Ticker for threads that mark own elements as known. */
 186         private Ticker localElementTicker = new Ticker();
 187
 188         /** The time the configuration was last touched. */
 189         private volatile long lastConfigurationUpdate;
 190
 191         /**
 192          * Creates a new core.
 193          *
 194          * @param configuration
 195          *            The configuration of the core
 196          * @param freenetInterface
 197          *            The freenet interface
 198          * @param identityManager
 199          *            The identity manager
 200          */
 201         public Core(Configuration configuration, FreenetInterface freenetInterface, IdentityManager identityManager) {
 202                 super("Sone Core");
 203                 this.configuration = configuration;
 204                 this.freenetInterface = freenetInterface;
 205                 this.identityManager = identityManager;
 206                 this.soneDownloader = new SoneDownloader(this, freenetInterface);
 207                 this.updateChecker = new UpdateChecker(freenetInterface);
 208         }
 209
 210         //
 211         // LISTENER MANAGEMENT
 212         //
 213
 214         /**
 215          * Adds a new core listener.
 216          *
 217          * @param coreListener
 218          *            The listener to add
 219          */
 220         public void addCoreListener(CoreListener coreListener) {
 221                 coreListenerManager.addListener(coreListener);
 222         }
 223
 224         /**
 225          * Removes a core listener.
 226          *
 227          * @param coreListener
 228          *            The listener to remove
 229          */
 230         public void removeCoreListener(CoreListener coreListener) {
 231                 coreListenerManager.removeListener(coreListener);
 232         }
 233
 234         //
 235         // ACCESSORS
 236         //
 237
 238         /**
 239          * Sets the configuration to use. This will automatically save the current
 240          * configuration to the given configuration.
 241          *
 242          * @param configuration
 243          *            The new configuration to use
 244          */
 245         public void setConfiguration(Configuration configuration) {
 246                 this.configuration = configuration;
 247                 touchConfiguration();
 248         }
 249
 250         /**
 251          * Returns the options used by the core.
 252          *
 253          * @return The options of the core
 254          */
 255         public Preferences getPreferences() {
 256                 return preferences;
 257         }
 258
 259         /**
 260          * Returns the identity manager used by the core.
 261          *
 262          * @return The identity manager
 263          */
 264         public IdentityManager getIdentityManager() {
 265                 return identityManager;
 266         }
 267
 268         /**
 269          * Returns the update checker.
 270          *
 271          * @return The update checker
 272          */
 273         public UpdateChecker getUpdateChecker() {
 274                 return updateChecker;
 275         }
 276
 277         /**
 278          * Sets the FCP interface to use.
 279          *
 280          * @param fcpInterface
 281          *            The FCP interface to use
 282          */
 283         public void setFcpInterface(FcpInterface fcpInterface) {
 284                 this.fcpInterface = fcpInterface;
 285         }
 286
 287         /**
 288          * Returns the status of the given Sone.
 289          *
 290          * @param sone
 291          *            The Sone to get the status for
 292          * @return The status of the Sone
 293          */
 294         public SoneStatus getSoneStatus(Sone sone) {
 295                 synchronized (soneStatuses) {
 296                         return soneStatuses.get(sone);
 297                 }
 298         }
 299
 300         /**
 301          * Sets the status of the given Sone.
 302          *
 303          * @param sone
 304          *            The Sone to set the status of
 305          * @param soneStatus
 306          *            The status to set
 307          */
 308         public void setSoneStatus(Sone sone, SoneStatus soneStatus) {
 309                 synchronized (soneStatuses) {
 310                         soneStatuses.put(sone, soneStatus);
 311                 }
 312         }
 313
 314         /**
 315          * Returns the Sone rescuer for the given local Sone.
 316          *
 317          * @param sone
 318          *            The local Sone to get the rescuer for
 319          * @return The Sone rescuer for the given Sone
 320          */
 321         public SoneRescuer getSoneRescuer(Sone sone) {
 322                 Validation.begin().isNotNull("Sone", sone).check().is("Local Sone", isLocalSone(sone)).check();
 323                 synchronized (localSones) {
 324                         SoneRescuer soneRescuer = soneRescuers.get(sone);
 325                         if (soneRescuer == null) {
 326                                 soneRescuer = new SoneRescuer(this, soneDownloader, sone);
 327                                 soneRescuers.put(sone, soneRescuer);
 328                                 soneRescuer.start();
 329                         }
 330                         return soneRescuer;
 331                 }
 332         }
 333
 334         /**
 335          * Returns whether the given Sone is currently locked.
 336          *
 337          * @param sone
 338          *            The sone to check
 339          * @return {@code true} if the Sone is locked, {@code false} if it is not
 340          */
 341         public boolean isLocked(Sone sone) {
 342                 synchronized (lockedSones) {
 343                         return lockedSones.contains(sone);
 344                 }
 345         }
 346
 347         /**
 348          * Returns all Sones, remote and local.
 349          *
 350          * @return All Sones
 351          */
 352         public Set<Sone> getSones() {
 353                 Set<Sone> allSones = new HashSet<Sone>();
 354                 allSones.addAll(getLocalSones());
 355                 allSones.addAll(getRemoteSones());
 356                 return allSones;
 357         }
 358
 359         /**
 360          * Returns the Sone with the given ID, regardless whether it’s local or
 361          * remote.
 362          *
 363          * @param id
 364          *            The ID of the Sone to get
 365          * @return The Sone with the given ID, or {@code null} if there is no such
 366          *         Sone
 367          */
 368         public Sone getSone(String id) {
 369                 return getSone(id, true);
 370         }
 371
 372         /**
 373          * Returns the Sone with the given ID, regardless whether it’s local or
 374          * remote.
 375          *
 376          * @param id
 377          *            The ID of the Sone to get
 378          * @param create
 379          *            {@code true} to create a new Sone if none exists,
 380          *            {@code false} to return {@code null} if a Sone with the given
 381          *            ID does not exist
 382          * @return The Sone with the given ID, or {@code null} if there is no such
 383          *         Sone
 384          */
 385         @Override
 386         public Sone getSone(String id, boolean create) {
 387                 if (isLocalSone(id)) {
 388                         return getLocalSone(id);
 389                 }
 390                 return getRemoteSone(id, create);
 391         }
 392
 393         /**
 394          * Checks whether the core knows a Sone with the given ID.
 395          *
 396          * @param id
 397          *            The ID of the Sone
 398          * @return {@code true} if there is a Sone with the given ID, {@code false}
 399          *         otherwise
 400          */
 401         public boolean hasSone(String id) {
 402                 return isLocalSone(id) || isRemoteSone(id);
 403         }
 404
 405         /**
 406          * Returns whether the given Sone is a local Sone.
 407          *
 408          * @param sone
 409          *            The Sone to check for its locality
 410          * @return {@code true} if the given Sone is local, {@code false} otherwise
 411          */
 412         public boolean isLocalSone(Sone sone) {
 413                 synchronized (localSones) {
 414                         return localSones.containsKey(sone.getId());
 415                 }
 416         }
 417
 418         /**
 419          * Returns whether the given ID is the ID of a local Sone.
 420          *
 421          * @param id
 422          *            The Sone ID to check for its locality
 423          * @return {@code true} if the given ID is a local Sone, {@code false}
 424          *         otherwise
 425          */
 426         public boolean isLocalSone(String id) {
 427                 synchronized (localSones) {
 428                         return localSones.containsKey(id);
 429                 }
 430         }
 431
 432         /**
 433          * Returns all local Sones.
 434          *
 435          * @return All local Sones
 436          */
 437         public Set<Sone> getLocalSones() {
 438                 synchronized (localSones) {
 439                         return new HashSet<Sone>(localSones.values());
 440                 }
 441         }
 442
 443         /**
 444          * Returns the local Sone with the given ID.
 445          *
 446          * @param id
 447          *            The ID of the Sone to get
 448          * @return The Sone with the given ID
 449          */
 450         public Sone getLocalSone(String id) {
 451                 return getLocalSone(id, true);
 452         }
 453
 454         /**
 455          * Returns the local Sone with the given ID, optionally creating a new Sone.
 456          *
 457          * @param id
 458          *            The ID of the Sone
 459          * @param create
 460          *            {@code true} to create a new Sone if none exists,
 461          *            {@code false} to return null if none exists
 462          * @return The Sone with the given ID, or {@code null}
 463          */
 464         public Sone getLocalSone(String id, boolean create) {
 465                 synchronized (localSones) {
 466                         Sone sone = localSones.get(id);
 467                         if ((sone == null) && create) {
 468                                 sone = new Sone(id);
 469                                 localSones.put(id, sone);
 470                                 setSoneStatus(sone, SoneStatus.unknown);
 471                         }
 472                         return sone;
 473                 }
 474         }
 475
 476         /**
 477          * Returns all remote Sones.
 478          *
 479          * @return All remote Sones
 480          */
 481         public Set<Sone> getRemoteSones() {
 482                 synchronized (remoteSones) {
 483                         return new HashSet<Sone>(remoteSones.values());
 484                 }
 485         }
 486
 487         /**
 488          * Returns the remote Sone with the given ID.
 489          *
 490          * @param id
 491          *            The ID of the remote Sone to get
 492          * @return The Sone with the given ID
 493          */
 494         public Sone getRemoteSone(String id) {
 495                 return getRemoteSone(id, true);
 496         }
 497
 498         /**
 499          * Returns the remote Sone with the given ID.
 500          *
 501          * @param id
 502          *            The ID of the remote Sone to get
 503          * @param create
 504          *            {@code true} to always create a Sone, {@code false} to return
 505          *            {@code null} if no Sone with the given ID exists
 506          * @return The Sone with the given ID
 507          */
 508         public Sone getRemoteSone(String id, boolean create) {
 509                 synchronized (remoteSones) {
 510                         Sone sone = remoteSones.get(id);
 511                         if ((sone == null) && create) {
 512                                 sone = new Sone(id);
 513                                 remoteSones.put(id, sone);
 514                                 setSoneStatus(sone, SoneStatus.unknown);
 515                         }
 516                         return sone;
 517                 }
 518         }
 519
 520         /**
 521          * Returns whether the given Sone is a remote Sone.
 522          *
 523          * @param sone
 524          *            The Sone to check
 525          * @return {@code true} if the given Sone is a remote Sone, {@code false}
 526          *         otherwise
 527          */
 528         public boolean isRemoteSone(Sone sone) {
 529                 synchronized (remoteSones) {
 530                         return remoteSones.containsKey(sone.getId());
 531                 }
 532         }
 533
 534         /**
 535          * Returns whether the Sone with the given ID is a remote Sone.
 536          *
 537          * @param id
 538          *            The ID of the Sone to check
 539          * @return {@code true} if the Sone with the given ID is a remote Sone,
 540          *         {@code false} otherwise
 541          */
 542         public boolean isRemoteSone(String id) {
 543                 synchronized (remoteSones) {
 544                         return remoteSones.containsKey(id);
 545                 }
 546         }
 547
 548         /**
 549          * Returns whether the Sone with the given ID is a new Sone.
 550          *
 551          * @param soneId
 552          *            The ID of the sone to check for
 553          * @return {@code true} if the given Sone is new, false otherwise
 554          */
 555         public boolean isNewSone(String soneId) {
 556                 synchronized (newSones) {
 557                         return !knownSones.contains(soneId) && newSones.contains(soneId);
 558                 }
 559         }
 560
 561         /**
 562          * Returns whether the given Sone has been modified.
 563          *
 564          * @param sone
 565          *            The Sone to check for modifications
 566          * @return {@code true} if a modification has been detected in the Sone,
 567          *         {@code false} otherwise
 568          */
 569         public boolean isModifiedSone(Sone sone) {
 570                 return (soneInserters.containsKey(sone)) ? soneInserters.get(sone).isModified() : false;
 571         }
 572
 573         /**
 574          * Returns whether the target Sone is trusted by the origin Sone.
 575          *
 576          * @param origin
 577          *            The origin Sone
 578          * @param target
 579          *            The target Sone
 580          * @return {@code true} if the target Sone is trusted by the origin Sone
 581          */
 582         public boolean isSoneTrusted(Sone origin, Sone target) {
 583                 Validation.begin().isNotNull("Origin", origin).isNotNull("Target", target).check().isInstanceOf("Origin’s OwnIdentity", origin.getIdentity(), OwnIdentity.class).check();
 584                 return trustedIdentities.containsKey(origin.getIdentity()) && trustedIdentities.get(origin.getIdentity()).contains(target.getIdentity());
 585         }
 586
 587         /**
 588          * Returns the post with the given ID.
 589          *
 590          * @param postId
 591          *            The ID of the post to get
 592          * @return The post with the given ID, or a new post with the given ID
 593          */
 594         public Post getPost(String postId) {
 595                 return getPost(postId, true);
 596         }
 597
 598         /**
 599          * Returns the post with the given ID, optionally creating a new post.
 600          *
 601          * @param postId
 602          *            The ID of the post to get
 603          * @param create
 604          *            {@code true} it create a new post if no post with the given ID
 605          *            exists, {@code false} to return {@code null}
 606          * @return The post, or {@code null} if there is no such post
 607          */
 608         @Override
 609         public Post getPost(String postId, boolean create) {
 610                 synchronized (posts) {
 611                         Post post = posts.get(postId);
 612                         if ((post == null) && create) {
 613                                 post = new Post(postId);
 614                                 posts.put(postId, post);
 615                         }
 616                         return post;
 617                 }
 618         }
 619
 620         /**
 621          * Returns whether the given post ID is new.
 622          *
 623          * @param postId
 624          *            The post ID
 625          * @return {@code true} if the post is considered to be new, {@code false}
 626          *         otherwise
 627          */
 628         public boolean isNewPost(String postId) {
 629                 synchronized (newPosts) {
 630                         return !knownPosts.contains(postId) && newPosts.contains(postId);
 631                 }
 632         }
 633
 634         /**
 635          * Returns all posts that have the given Sone as recipient.
 636          *
 637          * @see Post#getRecipient()
 638          * @param recipient
 639          *            The recipient of the posts
 640          * @return All posts that have the given Sone as recipient
 641          */
 642         public Set<Post> getDirectedPosts(Sone recipient) {
 643                 Validation.begin().isNotNull("Recipient", recipient).check();
 644                 Set<Post> directedPosts = new HashSet<Post>();
 645                 synchronized (posts) {
 646                         for (Post post : posts.values()) {
 647                                 if (recipient.equals(post.getRecipient())) {
 648                                         directedPosts.add(post);
 649                                 }
 650                         }
 651                 }
 652                 return directedPosts;
 653         }
 654
 655         /**
 656          * Returns the reply with the given ID. If there is no reply with the given
 657          * ID yet, a new one is created.
 658          *
 659          * @param replyId
 660          *            The ID of the reply to get
 661          * @return The reply
 662          */
 663         public Reply getReply(String replyId) {
 664                 return getReply(replyId, true);
 665         }
 666
 667         /**
 668          * Returns the reply with the given ID. If there is no reply with the given
 669          * ID yet, a new one is created, unless {@code create} is false in which
 670          * case {@code null} is returned.
 671          *
 672          * @param replyId
 673          *            The ID of the reply to get
 674          * @param create
 675          *            {@code true} to always return a {@link Reply}, {@code false}
 676          *            to return {@code null} if no reply can be found
 677          * @return The reply, or {@code null} if there is no such reply
 678          */
 679         public Reply getReply(String replyId, boolean create) {
 680                 synchronized (replies) {
 681                         Reply reply = replies.get(replyId);
 682                         if (create && (reply == null)) {
 683                                 reply = new Reply(replyId);
 684                                 replies.put(replyId, reply);
 685                         }
 686                         return reply;
 687                 }
 688         }
 689
 690         /**
 691          * Returns all replies for the given post, order ascending by time.
 692          *
 693          * @param post
 694          *            The post to get all replies for
 695          * @return All replies for the given post
 696          */
 697         public List<Reply> getReplies(Post post) {
 698                 Set<Sone> sones = getSones();
 699                 @SuppressWarnings("hiding")
 700                 List<Reply> replies = new ArrayList<Reply>();
 701                 for (Sone sone : sones) {
 702                         for (Reply reply : sone.getReplies()) {
 703                                 if (reply.getPost().equals(post)) {
 704                                         replies.add(reply);
 705                                 }
 706                         }
 707                 }
 708                 Collections.sort(replies, Reply.TIME_COMPARATOR);
 709                 return replies;
 710         }
 711
 712         /**
 713          * Returns whether the reply with the given ID is new.
 714          *
 715          * @param replyId
 716          *            The ID of the reply to check
 717          * @return {@code true} if the reply is considered to be new, {@code false}
 718          *         otherwise
 719          */
 720         public boolean isNewReply(String replyId) {
 721                 synchronized (newReplies) {
 722                         return !knownReplies.contains(replyId) && newReplies.contains(replyId);
 723                 }
 724         }
 725
 726         /**
 727          * Returns all Sones that have liked the given post.
 728          *
 729          * @param post
 730          *            The post to get the liking Sones for
 731          * @return The Sones that like the given post
 732          */
 733         public Set<Sone> getLikes(Post post) {
 734                 Set<Sone> sones = new HashSet<Sone>();
 735                 for (Sone sone : getSones()) {
 736                         if (sone.getLikedPostIds().contains(post.getId())) {
 737                                 sones.add(sone);
 738                         }
 739                 }
 740                 return sones;
 741         }
 742
 743         /**
 744          * Returns all Sones that have liked the given reply.
 745          *
 746          * @param reply
 747          *            The reply to get the liking Sones for
 748          * @return The Sones that like the given reply
 749          */
 750         public Set<Sone> getLikes(Reply reply) {
 751                 Set<Sone> sones = new HashSet<Sone>();
 752                 for (Sone sone : getSones()) {
 753                         if (sone.getLikedReplyIds().contains(reply.getId())) {
 754                                 sones.add(sone);
 755                         }
 756                 }
 757                 return sones;
 758         }
 759
 760         /**
 761          * Returns whether the given post is bookmarked.
 762          *
 763          * @param post
 764          *            The post to check
 765          * @return {@code true} if the given post is bookmarked, {@code false}
 766          *         otherwise
 767          */
 768         public boolean isBookmarked(Post post) {
 769                 return isPostBookmarked(post.getId());
 770         }
 771
 772         /**
 773          * Returns whether the post with the given ID is bookmarked.
 774          *
 775          * @param id
 776          *            The ID of the post to check
 777          * @return {@code true} if the post with the given ID is bookmarked,
 778          *         {@code false} otherwise
 779          */
 780         public boolean isPostBookmarked(String id) {
 781                 synchronized (bookmarkedPosts) {
 782                         return bookmarkedPosts.contains(id);
 783                 }
 784         }
 785
 786         /**
 787          * Returns all currently known bookmarked posts.
 788          *
 789          * @return All bookmarked posts
 790          */
 791         public Set<Post> getBookmarkedPosts() {
 792                 @SuppressWarnings("hiding")
 793                 Set<Post> posts = new HashSet<Post>();
 794                 synchronized (bookmarkedPosts) {
 795                         for (String bookmarkedPostId : bookmarkedPosts) {
 796                                 Post post = getPost(bookmarkedPostId, false);
 797                                 if (post != null) {
 798                                         posts.add(post);
 799                                 }
 800                         }
 801                 }
 802                 return posts;
 803         }
 804
 805         //
 806         // ACTIONS
 807         //
 808
 809         /**
 810          * Locks the given Sone. A locked Sone will not be inserted by
 811          * {@link SoneInserter} until it is {@link #unlockSone(Sone) unlocked}
 812          * again.
 813          *
 814          * @param sone
 815          *            The sone to lock
 816          */
 817         public void lockSone(Sone sone) {
 818                 synchronized (lockedSones) {
 819                         if (lockedSones.add(sone)) {
 820                                 coreListenerManager.fireSoneLocked(sone);
 821                         }
 822                 }
 823         }
 824
 825         /**
 826          * Unlocks the given Sone.
 827          *
 828          * @see #lockSone(Sone)
 829          * @param sone
 830          *            The sone to unlock
 831          */
 832         public void unlockSone(Sone sone) {
 833                 synchronized (lockedSones) {
 834                         if (lockedSones.remove(sone)) {
 835                                 coreListenerManager.fireSoneUnlocked(sone);
 836                         }
 837                 }
 838         }
 839
 840         /**
 841          * Adds a local Sone from the given ID which has to be the ID of an own
 842          * identity.
 843          *
 844          * @param id
 845          *            The ID of an own identity to add a Sone for
 846          * @return The added (or already existing) Sone
 847          */
 848         public Sone addLocalSone(String id) {
 849                 synchronized (localSones) {
 850                         if (localSones.containsKey(id)) {
 851                                 logger.log(Level.FINE, "Tried to add known local Sone: %s", id);
 852                                 return localSones.get(id);
 853                         }
 854                         OwnIdentity ownIdentity = identityManager.getOwnIdentity(id);
 855                         if (ownIdentity == null) {
 856                                 logger.log(Level.INFO, "Invalid Sone ID: %s", id);
 857                                 return null;
 858                         }
 859                         return addLocalSone(ownIdentity);
 860                 }
 861         }
 862
 863         /**
 864          * Adds a local Sone from the given own identity.
 865          *
 866          * @param ownIdentity
 867          *            The own identity to create a Sone from
 868          * @return The added (or already existing) Sone
 869          */
 870         public Sone addLocalSone(OwnIdentity ownIdentity) {
 871                 if (ownIdentity == null) {
 872                         logger.log(Level.WARNING, "Given OwnIdentity is null!");
 873                         return null;
 874                 }
 875                 synchronized (localSones) {
 876                         final Sone sone;
 877                         try {
 878                                 sone = getLocalSone(ownIdentity.getId()).setIdentity(ownIdentity).setInsertUri(new FreenetURI(ownIdentity.getInsertUri())).setRequestUri(new FreenetURI(ownIdentity.getRequestUri()));
 879                         } catch (MalformedURLException mue1) {
 880                                 logger.log(Level.SEVERE, "Could not convert the Identity’s URIs to Freenet URIs: " + ownIdentity.getInsertUri() + ", " + ownIdentity.getRequestUri(), mue1);
 881                                 return null;
 882                         }
 883                         sone.setLatestEdition(Numbers.safeParseLong(ownIdentity.getProperty("Sone.LatestEdition"), (long) 0));
 884                         sone.setClient(new Client("Sone", SonePlugin.VERSION.toString()));
 885                         /* TODO - load posts ’n stuff */
 886                         localSones.put(ownIdentity.getId(), sone);
 887                         final SoneInserter soneInserter = new SoneInserter(this, freenetInterface, sone);
 888                         soneInserter.addSoneInsertListener(this);
 889                         soneInserters.put(sone, soneInserter);
 890                         setSoneStatus(sone, SoneStatus.idle);
 891                         loadSone(sone);
 892                         soneInserter.start();
 893                         return sone;
 894                 }
 895         }
 896
 897         /**
 898          * Creates a new Sone for the given own identity.
 899          *
 900          * @param ownIdentity
 901          *            The own identity to create a Sone for
 902          * @return The created Sone
 903          */
 904         public Sone createSone(OwnIdentity ownIdentity) {
 905                 try {
 906                         ownIdentity.addContext("Sone");
 907                 } catch (WebOfTrustException wote1) {
 908                         logger.log(Level.SEVERE, "Could not add “Sone” context to own identity: " + ownIdentity, wote1);
 909                         return null;
 910                 }
 911                 Sone sone = addLocalSone(ownIdentity);
 912                 sone.getOptions().addBooleanOption("AutoFollow", new DefaultOption<Boolean>(false));
 913                 sone.addFriend("nwa8lHa271k2QvJ8aa0Ov7IHAV-DFOCFgmDt3X6BpCI");
 914                 touchConfiguration();
 915                 return sone;
 916         }
 917
 918         /**
 919          * Adds the Sone of the given identity.
 920          *
 921          * @param identity
 922          *            The identity whose Sone to add
 923          * @return The added or already existing Sone
 924          */
 925         public Sone addRemoteSone(Identity identity) {
 926                 if (identity == null) {
 927                         logger.log(Level.WARNING, "Given Identity is null!");
 928                         return null;
 929                 }
 930                 synchronized (remoteSones) {
 931                         final Sone sone = getRemoteSone(identity.getId()).setIdentity(identity);
 932                         boolean newSone = sone.getRequestUri() == null;
 933                         sone.setRequestUri(getSoneUri(identity.getRequestUri()));
 934                         sone.setLatestEdition(Numbers.safeParseLong(identity.getProperty("Sone.LatestEdition"), (long) 0));
 935                         if (newSone) {
 936                                 synchronized (newSones) {
 937                                         newSone = !knownSones.contains(sone.getId());
 938                                         if (newSone) {
 939                                                 newSones.add(sone.getId());
 940                                         }
 941                                 }
 942                                 if (newSone) {
 943                                         coreListenerManager.fireNewSoneFound(sone);
 944                                         for (Sone localSone : getLocalSones()) {
 945                                                 if (localSone.getOptions().getBooleanOption("AutoFollow").get()) {
 946                                                         localSone.addFriend(sone.getId());
 947                                                         touchConfiguration();
 948                                                 }
 949                                         }
 950                                 }
 951                         }
 952                         remoteSones.put(identity.getId(), sone);
 953                         soneDownloader.addSone(sone);
 954                         setSoneStatus(sone, SoneStatus.unknown);
 955                         soneDownloaders.execute(new Runnable() {
 956
 957                                 @Override
 958                                 @SuppressWarnings("synthetic-access")
 959                                 public void run() {
 960                                         soneDownloader.fetchSone(sone, sone.getRequestUri());
 961                                 }
 962
 963                         });
 964                         return sone;
 965                 }
 966         }
 967
 968         /**
 969          * Retrieves the trust relationship from the origin to the target. If the
 970          * trust relationship can not be retrieved, {@code null} is returned.
 971          *
 972          * @see Identity#getTrust(OwnIdentity)
 973          * @param origin
 974          *            The origin of the trust tree
 975          * @param target
 976          *            The target of the trust
 977          * @return The trust relationship
 978          */
 979         public Trust getTrust(Sone origin, Sone target) {
 980                 if (!isLocalSone(origin)) {
 981                         logger.log(Level.WARNING, "Tried to get trust from remote Sone: %s", origin);
 982                         return null;
 983                 }
 984                 return target.getIdentity().getTrust((OwnIdentity) origin.getIdentity());
 985         }
 986
 987         /**
 988          * Sets the trust value of the given origin Sone for the target Sone.
 989          *
 990          * @param origin
 991          *            The origin Sone
 992          * @param target
 993          *            The target Sone
 994          * @param trustValue
 995          *            The trust value (from {@code -100} to {@code 100})
 996          */
 997         public void setTrust(Sone origin, Sone target, int trustValue) {
 998                 Validation.begin().isNotNull("Trust Origin", origin).check().isInstanceOf("Trust Origin", origin.getIdentity(), OwnIdentity.class).isNotNull("Trust Target", target).isLessOrEqual("Trust Value", trustValue, 100).isGreaterOrEqual("Trust Value", trustValue, -100).check();
 999                 try {
1000                         ((OwnIdentity) origin.getIdentity()).setTrust(target.getIdentity(), trustValue, preferences.getTrustComment());
1001                 } catch (WebOfTrustException wote1) {
1002                         logger.log(Level.WARNING, "Could not set trust for Sone: " + target, wote1);
1003                 }
1004         }
1005
1006         /**
1007          * Removes any trust assignment for the given target Sone.
1008          *
1009          * @param origin
1010          *            The trust origin
1011          * @param target
1012          *            The trust target
1013          */
1014         public void removeTrust(Sone origin, Sone target) {
1015                 Validation.begin().isNotNull("Trust Origin", origin).isNotNull("Trust Target", target).check().isInstanceOf("Trust Origin Identity", origin.getIdentity(), OwnIdentity.class).check();
1016                 try {
1017                         ((OwnIdentity) origin.getIdentity()).removeTrust(target.getIdentity());
1018                 } catch (WebOfTrustException wote1) {
1019                         logger.log(Level.WARNING, "Could not remove trust for Sone: " + target, wote1);
1020                 }
1021         }
1022
1023         /**
1024          * Assigns the configured positive trust value for the given target.
1025          *
1026          * @param origin
1027          *            The trust origin
1028          * @param target
1029          *            The trust target
1030          */
1031         public void trustSone(Sone origin, Sone target) {
1032                 setTrust(origin, target, preferences.getPositiveTrust());
1033         }
1034
1035         /**
1036          * Assigns the configured negative trust value for the given target.
1037          *
1038          * @param origin
1039          *            The trust origin
1040          * @param target
1041          *            The trust target
1042          */
1043         public void distrustSone(Sone origin, Sone target) {
1044                 setTrust(origin, target, preferences.getNegativeTrust());
1045         }
1046
1047         /**
1048          * Removes the trust assignment for the given target.
1049          *
1050          * @param origin
1051          *            The trust origin
1052          * @param target
1053          *            The trust target
1054          */
1055         public void untrustSone(Sone origin, Sone target) {
1056                 removeTrust(origin, target);
1057         }
1058
1059         /**
1060          * Updates the stored Sone with the given Sone.
1061          *
1062          * @param sone
1063          *            The updated Sone
1064          */
1065         public void updateSone(Sone sone) {
1066                 updateSone(sone, false);
1067         }
1068
1069         /**
1070          * Updates the stored Sone with the given Sone. If {@code soneRescueMode} is
1071          * {@code true}, an older Sone than the current Sone can be given to restore
1072          * an old state.
1073          *
1074          * @param sone
1075          *            The Sone to update
1076          * @param soneRescueMode
1077          *            {@code true} if the stored Sone should be updated regardless
1078          *            of the age of the given Sone
1079          */
1080         public void updateSone(Sone sone, boolean soneRescueMode) {
1081                 if (hasSone(sone.getId())) {
1082                         Sone storedSone = getSone(sone.getId());
1083                         if (!soneRescueMode && !(sone.getTime() > storedSone.getTime())) {
1084                                 logger.log(Level.FINE, "Downloaded Sone %s is not newer than stored Sone %s.", new Object[] { sone, storedSone });
1085                                 return;
1086                         }
1087                         synchronized (posts) {
1088                                 if (!soneRescueMode) {
1089                                         for (Post post : storedSone.getPosts()) {
1090                                                 posts.remove(post.getId());
1091                                                 if (!sone.getPosts().contains(post)) {
1092                                                         coreListenerManager.firePostRemoved(post);
1093                                                 }
1094                                         }
1095                                 }
1096                                 List<Post> storedPosts = storedSone.getPosts();
1097                                 synchronized (newPosts) {
1098                                         for (Post post : sone.getPosts()) {
1099                                                 post.setSone(storedSone);
1100                                                 if (!storedPosts.contains(post) && !knownPosts.contains(post.getId())) {
1101                                                         newPosts.add(post.getId());
1102                                                         coreListenerManager.fireNewPostFound(post);
1103                                                 }
1104                                                 posts.put(post.getId(), post);
1105                                         }
1106                                 }
1107                         }
1108                         synchronized (replies) {
1109                                 if (!soneRescueMode) {
1110                                         for (Reply reply : storedSone.getReplies()) {
1111                                                 replies.remove(reply.getId());
1112                                                 if (!sone.getReplies().contains(reply)) {
1113                                                         coreListenerManager.fireReplyRemoved(reply);
1114                                                 }
1115                                         }
1116                                 }
1117                                 Set<Reply> storedReplies = storedSone.getReplies();
1118                                 synchronized (newReplies) {
1119                                         for (Reply reply : sone.getReplies()) {
1120                                                 reply.setSone(storedSone);
1121                                                 if (!storedReplies.contains(reply) && !knownReplies.contains(reply.getId())) {
1122                                                         newReplies.add(reply.getId());
1123                                                         coreListenerManager.fireNewReplyFound(reply);
1124                                                 }
1125                                                 replies.put(reply.getId(), reply);
1126                                         }
1127                                 }
1128                         }
1129                         synchronized (storedSone) {
1130                                 if (!soneRescueMode || (sone.getTime() > storedSone.getTime())) {
1131                                         storedSone.setTime(sone.getTime());
1132                                 }
1133                                 storedSone.setClient(sone.getClient());
1134                                 storedSone.setProfile(sone.getProfile());
1135                                 if (soneRescueMode) {
1136                                         for (Post post : sone.getPosts()) {
1137                                                 storedSone.addPost(post);
1138                                         }
1139                                         for (Reply reply : sone.getReplies()) {
1140                                                 storedSone.addReply(reply);
1141                                         }
1142                                         for (String likedPostId : sone.getLikedPostIds()) {
1143                                                 storedSone.addLikedPostId(likedPostId);
1144                                         }
1145                                         for (String likedReplyId : sone.getLikedReplyIds()) {
1146                                                 storedSone.addLikedReplyId(likedReplyId);
1147                                         }
1148                                 } else {
1149                                         storedSone.setPosts(sone.getPosts());
1150                                         storedSone.setReplies(sone.getReplies());
1151                                         storedSone.setLikePostIds(sone.getLikedPostIds());
1152                                         storedSone.setLikeReplyIds(sone.getLikedReplyIds());
1153                                 }
1154                                 storedSone.setLatestEdition(sone.getLatestEdition());
1155                         }
1156                 }
1157         }
1158
1159         /**
1160          * Deletes the given Sone. This will remove the Sone from the
1161          * {@link #getLocalSone(String) local Sones}, stops its {@link SoneInserter}
1162          * and remove the context from its identity.
1163          *
1164          * @param sone
1165          *            The Sone to delete
1166          */
1167         public void deleteSone(Sone sone) {
1168                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
1169                         logger.log(Level.WARNING, "Tried to delete Sone of non-own identity: %s", sone);
1170                         return;
1171                 }
1172                 synchronized (localSones) {
1173                         if (!localSones.containsKey(sone.getId())) {
1174                                 logger.log(Level.WARNING, "Tried to delete non-local Sone: %s", sone);
1175                                 return;
1176                         }
1177                         localSones.remove(sone.getId());
1178                         SoneInserter soneInserter = soneInserters.remove(sone);
1179                         soneInserter.removeSoneInsertListener(this);
1180                         soneInserter.stop();
1181                 }
1182                 try {
1183                         ((OwnIdentity) sone.getIdentity()).removeContext("Sone");
1184                         ((OwnIdentity) sone.getIdentity()).removeProperty("Sone.LatestEdition");
1185                 } catch (WebOfTrustException wote1) {
1186                         logger.log(Level.WARNING, "Could not remove context and properties from Sone: " + sone, wote1);
1187                 }
1188                 try {
1189                         configuration.getLongValue("Sone/" + sone.getId() + "/Time").setValue(null);
1190                 } catch (ConfigurationException ce1) {
1191                         logger.log(Level.WARNING, "Could not remove Sone from configuration!", ce1);
1192                 }
1193         }
1194
1195         /**
1196          * Marks the given Sone as known. If the Sone was {@link #isNewPost(String)
1197          * new} before, a {@link CoreListener#markSoneKnown(Sone)} event is fired.
1198          *
1199          * @param sone
1200          *            The Sone to mark as known
1201          */
1202         public void markSoneKnown(Sone sone) {
1203                 synchronized (newSones) {
1204                         if (newSones.remove(sone.getId())) {
1205                                 knownSones.add(sone.getId());
1206                                 coreListenerManager.fireMarkSoneKnown(sone);
1207                                 touchConfiguration();
1208                         }
1209                 }
1210         }
1211
1212         /**
1213          * Loads and updates the given Sone from the configuration. If any error is
1214          * encountered, loading is aborted and the given Sone is not changed.
1215          *
1216          * @param sone
1217          *            The Sone to load and update
1218          */
1219         public void loadSone(Sone sone) {
1220                 if (!isLocalSone(sone)) {
1221                         logger.log(Level.FINE, "Tried to load non-local Sone: %s", sone);
1222                         return;
1223                 }
1224
1225                 /* initialize options. */
1226                 sone.getOptions().addBooleanOption("AutoFollow", new DefaultOption<Boolean>(false));
1227                 sone.getOptions().addBooleanOption("EnableSoneInsertNotifications", new DefaultOption<Boolean>(false));
1228
1229                 /* load Sone. */
1230                 String sonePrefix = "Sone/" + sone.getId();
1231                 Long soneTime = configuration.getLongValue(sonePrefix + "/Time").getValue(null);
1232                 if (soneTime == null) {
1233                         logger.log(Level.INFO, "Could not load Sone because no Sone has been saved.");
1234                         return;
1235                 }
1236                 String lastInsertFingerprint = configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").getValue("");
1237
1238                 /* load profile. */
1239                 Profile profile = new Profile();
1240                 profile.setFirstName(configuration.getStringValue(sonePrefix + "/Profile/FirstName").getValue(null));
1241                 profile.setMiddleName(configuration.getStringValue(sonePrefix + "/Profile/MiddleName").getValue(null));
1242                 profile.setLastName(configuration.getStringValue(sonePrefix + "/Profile/LastName").getValue(null));
1243                 profile.setBirthDay(configuration.getIntValue(sonePrefix + "/Profile/BirthDay").getValue(null));
1244                 profile.setBirthMonth(configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").getValue(null));
1245                 profile.setBirthYear(configuration.getIntValue(sonePrefix + "/Profile/BirthYear").getValue(null));
1246
1247                 /* load profile fields. */
1248                 while (true) {
1249                         String fieldPrefix = sonePrefix + "/Profile/Fields/" + profile.getFields().size();
1250                         String fieldName = configuration.getStringValue(fieldPrefix + "/Name").getValue(null);
1251                         if (fieldName == null) {
1252                                 break;
1253                         }
1254                         String fieldValue = configuration.getStringValue(fieldPrefix + "/Value").getValue("");
1255                         profile.addField(fieldName).setValue(fieldValue);
1256                 }
1257
1258                 /* load posts. */
1259                 @SuppressWarnings("hiding")
1260                 Set<Post> posts = new HashSet<Post>();
1261                 while (true) {
1262                         String postPrefix = sonePrefix + "/Posts/" + posts.size();
1263                         String postId = configuration.getStringValue(postPrefix + "/ID").getValue(null);
1264                         if (postId == null) {
1265                                 break;
1266                         }
1267                         String postRecipientId = configuration.getStringValue(postPrefix + "/Recipient").getValue(null);
1268                         long postTime = configuration.getLongValue(postPrefix + "/Time").getValue((long) 0);
1269                         String postText = configuration.getStringValue(postPrefix + "/Text").getValue(null);
1270                         if ((postTime == 0) || (postText == null)) {
1271                                 logger.log(Level.WARNING, "Invalid post found, aborting load!");
1272                                 return;
1273                         }
1274                         Post post = getPost(postId).setSone(sone).setTime(postTime).setText(postText);
1275                         if ((postRecipientId != null) && (postRecipientId.length() == 43)) {
1276                                 post.setRecipient(getSone(postRecipientId));
1277                         }
1278                         posts.add(post);
1279                 }
1280
1281                 /* load replies. */
1282                 @SuppressWarnings("hiding")
1283                 Set<Reply> replies = new HashSet<Reply>();
1284                 while (true) {
1285                         String replyPrefix = sonePrefix + "/Replies/" + replies.size();
1286                         String replyId = configuration.getStringValue(replyPrefix + "/ID").getValue(null);
1287                         if (replyId == null) {
1288                                 break;
1289                         }
1290                         String postId = configuration.getStringValue(replyPrefix + "/Post/ID").getValue(null);
1291                         long replyTime = configuration.getLongValue(replyPrefix + "/Time").getValue((long) 0);
1292                         String replyText = configuration.getStringValue(replyPrefix + "/Text").getValue(null);
1293                         if ((postId == null) || (replyTime == 0) || (replyText == null)) {
1294                                 logger.log(Level.WARNING, "Invalid reply found, aborting load!");
1295                                 return;
1296                         }
1297                         replies.add(getReply(replyId).setSone(sone).setPost(getPost(postId)).setTime(replyTime).setText(replyText));
1298                 }
1299
1300                 /* load post likes. */
1301                 Set<String> likedPostIds = new HashSet<String>();
1302                 while (true) {
1303                         String likedPostId = configuration.getStringValue(sonePrefix + "/Likes/Post/" + likedPostIds.size() + "/ID").getValue(null);
1304                         if (likedPostId == null) {
1305                                 break;
1306                         }
1307                         likedPostIds.add(likedPostId);
1308                 }
1309
1310                 /* load reply likes. */
1311                 Set<String> likedReplyIds = new HashSet<String>();
1312                 while (true) {
1313                         String likedReplyId = configuration.getStringValue(sonePrefix + "/Likes/Reply/" + likedReplyIds.size() + "/ID").getValue(null);
1314                         if (likedReplyId == null) {
1315                                 break;
1316                         }
1317                         likedReplyIds.add(likedReplyId);
1318                 }
1319
1320                 /* load friends. */
1321                 Set<String> friends = new HashSet<String>();
1322                 while (true) {
1323                         String friendId = configuration.getStringValue(sonePrefix + "/Friends/" + friends.size() + "/ID").getValue(null);
1324                         if (friendId == null) {
1325                                 break;
1326                         }
1327                         friends.add(friendId);
1328                 }
1329
1330                 /* load options. */
1331                 sone.getOptions().getBooleanOption("AutoFollow").set(configuration.getBooleanValue(sonePrefix + "/Options/AutoFollow").getValue(null));
1332                 sone.getOptions().getBooleanOption("EnableSoneInsertNotifications").set(configuration.getBooleanValue(sonePrefix + "/Options/EnableSoneInsertNotifications").getValue(null));
1333
1334                 /* if we’re still here, Sone was loaded successfully. */
1335                 synchronized (sone) {
1336                         sone.setTime(soneTime);
1337                         sone.setProfile(profile);
1338                         sone.setPosts(posts);
1339                         sone.setReplies(replies);
1340                         sone.setLikePostIds(likedPostIds);
1341                         sone.setLikeReplyIds(likedReplyIds);
1342                         sone.setFriends(friends);
1343                         soneInserters.get(sone).setLastInsertFingerprint(lastInsertFingerprint);
1344                 }
1345                 synchronized (newSones) {
1346                         for (String friend : friends) {
1347                                 knownSones.add(friend);
1348                         }
1349                 }
1350                 synchronized (newPosts) {
1351                         for (Post post : posts) {
1352                                 knownPosts.add(post.getId());
1353                         }
1354                 }
1355                 synchronized (newReplies) {
1356                         for (Reply reply : replies) {
1357                                 knownReplies.add(reply.getId());
1358                         }
1359                 }
1360         }
1361
1362         /**
1363          * Creates a new post.
1364          *
1365          * @param sone
1366          *            The Sone that creates the post
1367          * @param text
1368          *            The text of the post
1369          * @return The created post
1370          */
1371         public Post createPost(Sone sone, String text) {
1372                 return createPost(sone, System.currentTimeMillis(), text);
1373         }
1374
1375         /**
1376          * Creates a new post.
1377          *
1378          * @param sone
1379          *            The Sone that creates the post
1380          * @param time
1381          *            The time of the post
1382          * @param text
1383          *            The text of the post
1384          * @return The created post
1385          */
1386         public Post createPost(Sone sone, long time, String text) {
1387                 return createPost(sone, null, time, text);
1388         }
1389
1390         /**
1391          * Creates a new post.
1392          *
1393          * @param sone
1394          *            The Sone that creates the post
1395          * @param recipient
1396          *            The recipient Sone, or {@code null} if this post does not have
1397          *            a recipient
1398          * @param text
1399          *            The text of the post
1400          * @return The created post
1401          */
1402         public Post createPost(Sone sone, Sone recipient, String text) {
1403                 return createPost(sone, recipient, System.currentTimeMillis(), text);
1404         }
1405
1406         /**
1407          * Creates a new post.
1408          *
1409          * @param sone
1410          *            The Sone that creates the post
1411          * @param recipient
1412          *            The recipient Sone, or {@code null} if this post does not have
1413          *            a recipient
1414          * @param time
1415          *            The time of the post
1416          * @param text
1417          *            The text of the post
1418          * @return The created post
1419          */
1420         public Post createPost(Sone sone, Sone recipient, long time, String text) {
1421                 if (!isLocalSone(sone)) {
1422                         logger.log(Level.FINE, "Tried to create post for non-local Sone: %s", sone);
1423                         return null;
1424                 }
1425                 final Post post = new Post(sone, time, text);
1426                 if (recipient != null) {
1427                         post.setRecipient(recipient);
1428                 }
1429                 synchronized (posts) {
1430                         posts.put(post.getId(), post);
1431                 }
1432                 synchronized (newPosts) {
1433                         newPosts.add(post.getId());
1434                         coreListenerManager.fireNewPostFound(post);
1435                 }
1436                 sone.addPost(post);
1437                 touchConfiguration();
1438                 localElementTicker.registerEvent(System.currentTimeMillis() + 10 * 1000, new Runnable() {
1439
1440                         /**
1441                          * {@inheritDoc}
1442                          */
1443                         @Override
1444                         public void run() {
1445                                 markPostKnown(post);
1446                         }
1447                 }, "Mark " + post + " read.");
1448                 return post;
1449         }
1450
1451         /**
1452          * Deletes the given post.
1453          *
1454          * @param post
1455          *            The post to delete
1456          */
1457         public void deletePost(Post post) {
1458                 if (!isLocalSone(post.getSone())) {
1459                         logger.log(Level.WARNING, "Tried to delete post of non-local Sone: %s", post.getSone());
1460                         return;
1461                 }
1462                 post.getSone().removePost(post);
1463                 synchronized (posts) {
1464                         posts.remove(post.getId());
1465                 }
1466                 coreListenerManager.firePostRemoved(post);
1467                 synchronized (newPosts) {
1468                         markPostKnown(post);
1469                         knownPosts.remove(post.getId());
1470                 }
1471                 touchConfiguration();
1472         }
1473
1474         /**
1475          * Marks the given post as known, if it is currently a new post (according
1476          * to {@link #isNewPost(String)}).
1477          *
1478          * @param post
1479          *            The post to mark as known
1480          */
1481         public void markPostKnown(Post post) {
1482                 synchronized (newPosts) {
1483                         if (newPosts.remove(post.getId())) {
1484                                 knownPosts.add(post.getId());
1485                                 coreListenerManager.fireMarkPostKnown(post);
1486                                 touchConfiguration();
1487                         }
1488                 }
1489         }
1490
1491         /**
1492          * Bookmarks the given post.
1493          *
1494          * @param post
1495          *            The post to bookmark
1496          */
1497         public void bookmark(Post post) {
1498                 bookmarkPost(post.getId());
1499         }
1500
1501         /**
1502          * Bookmarks the post with the given ID.
1503          *
1504          * @param id
1505          *            The ID of the post to bookmark
1506          */
1507         public void bookmarkPost(String id) {
1508                 synchronized (bookmarkedPosts) {
1509                         bookmarkedPosts.add(id);
1510                 }
1511         }
1512
1513         /**
1514          * Removes the given post from the bookmarks.
1515          *
1516          * @param post
1517          *            The post to unbookmark
1518          */
1519         public void unbookmark(Post post) {
1520                 unbookmarkPost(post.getId());
1521         }
1522
1523         /**
1524          * Removes the post with the given ID from the bookmarks.
1525          *
1526          * @param id
1527          *            The ID of the post to unbookmark
1528          */
1529         public void unbookmarkPost(String id) {
1530                 synchronized (bookmarkedPosts) {
1531                         bookmarkedPosts.remove(id);
1532                 }
1533         }
1534
1535         /**
1536          * Creates a new reply.
1537          *
1538          * @param sone
1539          *            The Sone that creates the reply
1540          * @param post
1541          *            The post that this reply refers to
1542          * @param text
1543          *            The text of the reply
1544          * @return The created reply
1545          */
1546         public Reply createReply(Sone sone, Post post, String text) {
1547                 return createReply(sone, post, System.currentTimeMillis(), text);
1548         }
1549
1550         /**
1551          * Creates a new reply.
1552          *
1553          * @param sone
1554          *            The Sone that creates the reply
1555          * @param post
1556          *            The post that this reply refers to
1557          * @param time
1558          *            The time of the reply
1559          * @param text
1560          *            The text of the reply
1561          * @return The created reply
1562          */
1563         public Reply createReply(Sone sone, Post post, long time, String text) {
1564                 if (!isLocalSone(sone)) {
1565                         logger.log(Level.FINE, "Tried to create reply for non-local Sone: %s", sone);
1566                         return null;
1567                 }
1568                 final Reply reply = new Reply(sone, post, System.currentTimeMillis(), text);
1569                 synchronized (replies) {
1570                         replies.put(reply.getId(), reply);
1571                 }
1572                 synchronized (newReplies) {
1573                         newReplies.add(reply.getId());
1574                         coreListenerManager.fireNewReplyFound(reply);
1575                 }
1576                 sone.addReply(reply);
1577                 touchConfiguration();
1578                 localElementTicker.registerEvent(System.currentTimeMillis() + 10 * 1000, new Runnable() {
1579
1580                         /**
1581                          * {@inheritDoc}
1582                          */
1583                         @Override
1584                         public void run() {
1585                                 markReplyKnown(reply);
1586                         }
1587                 }, "Mark " + reply + " read.");
1588                 return reply;
1589         }
1590
1591         /**
1592          * Deletes the given reply.
1593          *
1594          * @param reply
1595          *            The reply to delete
1596          */
1597         public void deleteReply(Reply reply) {
1598                 Sone sone = reply.getSone();
1599                 if (!isLocalSone(sone)) {
1600                         logger.log(Level.FINE, "Tried to delete non-local reply: %s", reply);
1601                         return;
1602                 }
1603                 synchronized (replies) {
1604                         replies.remove(reply.getId());
1605                 }
1606                 synchronized (newReplies) {
1607                         markReplyKnown(reply);
1608                         knownReplies.remove(reply.getId());
1609                 }
1610                 sone.removeReply(reply);
1611                 touchConfiguration();
1612         }
1613
1614         /**
1615          * Marks the given reply as known, if it is currently a new reply (according
1616          * to {@link #isNewReply(String)}).
1617          *
1618          * @param reply
1619          *            The reply to mark as known
1620          */
1621         public void markReplyKnown(Reply reply) {
1622                 synchronized (newReplies) {
1623                         if (newReplies.remove(reply.getId())) {
1624                                 knownReplies.add(reply.getId());
1625                                 coreListenerManager.fireMarkReplyKnown(reply);
1626                                 touchConfiguration();
1627                         }
1628                 }
1629         }
1630
1631         /**
1632          * Notifies the core that the configuration, either of the core or of a
1633          * single local Sone, has changed, and that the configuration should be
1634          * saved.
1635          */
1636         public void touchConfiguration() {
1637                 lastConfigurationUpdate = System.currentTimeMillis();
1638         }
1639
1640         //
1641         // SERVICE METHODS
1642         //
1643
1644         /**
1645          * Starts the core.
1646          */
1647         @Override
1648         public void serviceStart() {
1649                 loadConfiguration();
1650                 updateChecker.addUpdateListener(this);
1651                 updateChecker.start();
1652         }
1653
1654         /**
1655          * {@inheritDoc}
1656          */
1657         @Override
1658         public void serviceRun() {
1659                 long lastSaved = System.currentTimeMillis();
1660                 while (!shouldStop()) {
1661                         sleep(1000);
1662                         long now = System.currentTimeMillis();
1663                         if (shouldStop() || ((lastConfigurationUpdate > lastSaved) && ((now - lastConfigurationUpdate) > 5000))) {
1664                                 for (Sone localSone : getLocalSones()) {
1665                                         saveSone(localSone);
1666                                 }
1667                                 saveConfiguration();
1668                                 lastSaved = now;
1669                         }
1670                 }
1671         }
1672
1673         /**
1674          * Stops the core.
1675          */
1676         @Override
1677         public void serviceStop() {
1678                 synchronized (localSones) {
1679                         for (SoneInserter soneInserter : soneInserters.values()) {
1680                                 soneInserter.removeSoneInsertListener(this);
1681                                 soneInserter.stop();
1682                         }
1683                 }
1684                 updateChecker.stop();
1685                 updateChecker.removeUpdateListener(this);
1686                 soneDownloader.stop();
1687         }
1688
1689         //
1690         // PRIVATE METHODS
1691         //
1692
1693         /**
1694          * Saves the given Sone. This will persist all local settings for the given
1695          * Sone, such as the friends list and similar, private options.
1696          *
1697          * @param sone
1698          *            The Sone to save
1699          */
1700         private synchronized void saveSone(Sone sone) {
1701                 if (!isLocalSone(sone)) {
1702                         logger.log(Level.FINE, "Tried to save non-local Sone: %s", sone);
1703                         return;
1704                 }
1705                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
1706                         logger.log(Level.WARNING, "Local Sone without OwnIdentity found, refusing to save: %s", sone);
1707                         return;
1708                 }
1709
1710                 logger.log(Level.INFO, "Saving Sone: %s", sone);
1711                 try {
1712                         ((OwnIdentity) sone.getIdentity()).setProperty("Sone.LatestEdition", String.valueOf(sone.getLatestEdition()));
1713
1714                         /* save Sone into configuration. */
1715                         String sonePrefix = "Sone/" + sone.getId();
1716                         configuration.getLongValue(sonePrefix + "/Time").setValue(sone.getTime());
1717                         configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").setValue(soneInserters.get(sone).getLastInsertFingerprint());
1718
1719                         /* save profile. */
1720                         Profile profile = sone.getProfile();
1721                         configuration.getStringValue(sonePrefix + "/Profile/FirstName").setValue(profile.getFirstName());
1722                         configuration.getStringValue(sonePrefix + "/Profile/MiddleName").setValue(profile.getMiddleName());
1723                         configuration.getStringValue(sonePrefix + "/Profile/LastName").setValue(profile.getLastName());
1724                         configuration.getIntValue(sonePrefix + "/Profile/BirthDay").setValue(profile.getBirthDay());
1725                         configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").setValue(profile.getBirthMonth());
1726                         configuration.getIntValue(sonePrefix + "/Profile/BirthYear").setValue(profile.getBirthYear());
1727
1728                         /* save profile fields. */
1729                         int fieldCounter = 0;
1730                         for (Field profileField : profile.getFields()) {
1731                                 String fieldPrefix = sonePrefix + "/Profile/Fields/" + fieldCounter++;
1732                                 configuration.getStringValue(fieldPrefix + "/Name").setValue(profileField.getName());
1733                                 configuration.getStringValue(fieldPrefix + "/Value").setValue(profileField.getValue());
1734                         }
1735                         configuration.getStringValue(sonePrefix + "/Profile/Fields/" + fieldCounter + "/Name").setValue(null);
1736
1737                         /* save posts. */
1738                         int postCounter = 0;
1739                         for (Post post : sone.getPosts()) {
1740                                 String postPrefix = sonePrefix + "/Posts/" + postCounter++;
1741                                 configuration.getStringValue(postPrefix + "/ID").setValue(post.getId());
1742                                 configuration.getStringValue(postPrefix + "/Recipient").setValue((post.getRecipient() != null) ? post.getRecipient().getId() : null);
1743                                 configuration.getLongValue(postPrefix + "/Time").setValue(post.getTime());
1744                                 configuration.getStringValue(postPrefix + "/Text").setValue(post.getText());
1745                         }
1746                         configuration.getStringValue(sonePrefix + "/Posts/" + postCounter + "/ID").setValue(null);
1747
1748                         /* save replies. */
1749                         int replyCounter = 0;
1750                         for (Reply reply : sone.getReplies()) {
1751                                 String replyPrefix = sonePrefix + "/Replies/" + replyCounter++;
1752                                 configuration.getStringValue(replyPrefix + "/ID").setValue(reply.getId());
1753                                 configuration.getStringValue(replyPrefix + "/Post/ID").setValue(reply.getPost().getId());
1754                                 configuration.getLongValue(replyPrefix + "/Time").setValue(reply.getTime());
1755                                 configuration.getStringValue(replyPrefix + "/Text").setValue(reply.getText());
1756                         }
1757                         configuration.getStringValue(sonePrefix + "/Replies/" + replyCounter + "/ID").setValue(null);
1758
1759                         /* save post likes. */
1760                         int postLikeCounter = 0;
1761                         for (String postId : sone.getLikedPostIds()) {
1762                                 configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter++ + "/ID").setValue(postId);
1763                         }
1764                         configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter + "/ID").setValue(null);
1765
1766                         /* save reply likes. */
1767                         int replyLikeCounter = 0;
1768                         for (String replyId : sone.getLikedReplyIds()) {
1769                                 configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter++ + "/ID").setValue(replyId);
1770                         }
1771                         configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter + "/ID").setValue(null);
1772
1773                         /* save friends. */
1774                         int friendCounter = 0;
1775                         for (String friendId : sone.getFriends()) {
1776                                 configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter++ + "/ID").setValue(friendId);
1777                         }
1778                         configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter + "/ID").setValue(null);
1779
1780                         /* save options. */
1781                         configuration.getBooleanValue(sonePrefix + "/Options/AutoFollow").setValue(sone.getOptions().getBooleanOption("AutoFollow").getReal());
1782                         configuration.getBooleanValue(sonePrefix + "/Options/EnableSoneInsertNotifications").setValue(sone.getOptions().getBooleanOption("EnableSoneInsertNotifications").getReal());
1783
1784                         configuration.save();
1785                         logger.log(Level.INFO, "Sone %s saved.", sone);
1786                 } catch (ConfigurationException ce1) {
1787                         logger.log(Level.WARNING, "Could not save Sone: " + sone, ce1);
1788                 } catch (WebOfTrustException wote1) {
1789                         logger.log(Level.WARNING, "Could not set WoT property for Sone: " + sone, wote1);
1790                 }
1791         }
1792
1793         /**
1794          * Saves the current options.
1795          */
1796         private void saveConfiguration() {
1797                 synchronized (configuration) {
1798                         if (storingConfiguration) {
1799                                 logger.log(Level.FINE, "Already storing configuration…");
1800                                 return;
1801                         }
1802                         storingConfiguration = true;
1803                 }
1804
1805                 /* store the options first. */
1806                 try {
1807                         configuration.getIntValue("Option/ConfigurationVersion").setValue(0);
1808                         configuration.getIntValue("Option/InsertionDelay").setValue(options.getIntegerOption("InsertionDelay").getReal());
1809                         configuration.getIntValue("Option/PostsPerPage").setValue(options.getIntegerOption("PostsPerPage").getReal());
1810                         configuration.getIntValue("Option/CharactersPerPost").setValue(options.getIntegerOption("CharactersPerPost").getReal());
1811                         configuration.getBooleanValue("Option/RequireFullAccess").setValue(options.getBooleanOption("RequireFullAccess").getReal());
1812                         configuration.getIntValue("Option/PositiveTrust").setValue(options.getIntegerOption("PositiveTrust").getReal());
1813                         configuration.getIntValue("Option/NegativeTrust").setValue(options.getIntegerOption("NegativeTrust").getReal());
1814                         configuration.getStringValue("Option/TrustComment").setValue(options.getStringOption("TrustComment").getReal());
1815                         configuration.getBooleanValue("Option/ActivateFcpInterface").setValue(options.getBooleanOption("ActivateFcpInterface").getReal());
1816                         configuration.getIntValue("Option/FcpFullAccessRequired").setValue(options.getIntegerOption("FcpFullAccessRequired").getReal());
1817                         configuration.getBooleanValue("Option/SoneRescueMode").setValue(options.getBooleanOption("SoneRescueMode").getReal());
1818                         configuration.getBooleanValue("Option/ClearOnNextRestart").setValue(options.getBooleanOption("ClearOnNextRestart").getReal());
1819                         configuration.getBooleanValue("Option/ReallyClearOnNextRestart").setValue(options.getBooleanOption("ReallyClearOnNextRestart").getReal());
1820
1821                         /* save known Sones. */
1822                         int soneCounter = 0;
1823                         synchronized (newSones) {
1824                                 for (String knownSoneId : knownSones) {
1825                                         configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").setValue(knownSoneId);
1826                                 }
1827                                 configuration.getStringValue("KnownSone/" + soneCounter + "/ID").setValue(null);
1828                         }
1829
1830                         /* save known posts. */
1831                         int postCounter = 0;
1832                         synchronized (newPosts) {
1833                                 for (String knownPostId : knownPosts) {
1834                                         configuration.getStringValue("KnownPosts/" + postCounter++ + "/ID").setValue(knownPostId);
1835                                 }
1836                                 configuration.getStringValue("KnownPosts/" + postCounter + "/ID").setValue(null);
1837                         }
1838
1839                         /* save known replies. */
1840                         int replyCounter = 0;
1841                         synchronized (newReplies) {
1842                                 for (String knownReplyId : knownReplies) {
1843                                         configuration.getStringValue("KnownReplies/" + replyCounter++ + "/ID").setValue(knownReplyId);
1844                                 }
1845                                 configuration.getStringValue("KnownReplies/" + replyCounter + "/ID").setValue(null);
1846                         }
1847
1848                         /* save bookmarked posts. */
1849                         int bookmarkedPostCounter = 0;
1850                         synchronized (bookmarkedPosts) {
1851                                 for (String bookmarkedPostId : bookmarkedPosts) {
1852                                         configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").setValue(bookmarkedPostId);
1853                                 }
1854                         }
1855                         configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").setValue(null);
1856
1857                         /* now save it. */
1858                         configuration.save();
1859
1860                 } catch (ConfigurationException ce1) {
1861                         logger.log(Level.SEVERE, "Could not store configuration!", ce1);
1862                 } finally {
1863                         synchronized (configuration) {
1864                                 storingConfiguration = false;
1865                         }
1866                 }
1867         }
1868
1869         /**
1870          * Loads the configuration.
1871          */
1872         @SuppressWarnings("unchecked")
1873         private void loadConfiguration() {
1874                 /* create options. */
1875                 options.addIntegerOption("InsertionDelay", new DefaultOption<Integer>(60, new IntegerRangeValidator(0, Integer.MAX_VALUE), new OptionWatcher<Integer>() {
1876
1877                         @Override
1878                         public void optionChanged(Option<Integer> option, Integer oldValue, Integer newValue) {
1879                                 SoneInserter.setInsertionDelay(newValue);
1880                         }
1881
1882                 }));
1883                 options.addIntegerOption("PostsPerPage", new DefaultOption<Integer>(10, new IntegerRangeValidator(1, Integer.MAX_VALUE)));
1884                 options.addIntegerOption("CharactersPerPost", new DefaultOption<Integer>(200, new OrValidator<Integer>(new IntegerRangeValidator(50, Integer.MAX_VALUE), new EqualityValidator<Integer>(-1))));
1885                 options.addBooleanOption("RequireFullAccess", new DefaultOption<Boolean>(false));
1886                 options.addIntegerOption("PositiveTrust", new DefaultOption<Integer>(75, new IntegerRangeValidator(0, 100)));
1887                 options.addIntegerOption("NegativeTrust", new DefaultOption<Integer>(-25, new IntegerRangeValidator(-100, 100)));
1888                 options.addStringOption("TrustComment", new DefaultOption<String>("Set from Sone Web Interface"));
1889                 options.addBooleanOption("ActivateFcpInterface", new DefaultOption<Boolean>(false, new OptionWatcher<Boolean>() {
1890
1891                         @Override
1892                         @SuppressWarnings("synthetic-access")
1893                         public void optionChanged(Option<Boolean> option, Boolean oldValue, Boolean newValue) {
1894                                 fcpInterface.setActive(newValue);
1895                         }
1896                 }));
1897                 options.addIntegerOption("FcpFullAccessRequired", new DefaultOption<Integer>(2, new OptionWatcher<Integer>() {
1898
1899                         @Override
1900                         @SuppressWarnings("synthetic-access")
1901                         public void optionChanged(Option<Integer> option, Integer oldValue, Integer newValue) {
1902                                 fcpInterface.setFullAccessRequired(FullAccessRequired.values()[newValue]);
1903                         }
1904
1905                 }));
1906                 options.addBooleanOption("SoneRescueMode", new DefaultOption<Boolean>(false));
1907                 options.addBooleanOption("ClearOnNextRestart", new DefaultOption<Boolean>(false));
1908                 options.addBooleanOption("ReallyClearOnNextRestart", new DefaultOption<Boolean>(false));
1909
1910                 /* read options from configuration. */
1911                 options.getBooleanOption("ClearOnNextRestart").set(configuration.getBooleanValue("Option/ClearOnNextRestart").getValue(null));
1912                 options.getBooleanOption("ReallyClearOnNextRestart").set(configuration.getBooleanValue("Option/ReallyClearOnNextRestart").getValue(null));
1913                 boolean clearConfiguration = options.getBooleanOption("ClearOnNextRestart").get() && options.getBooleanOption("ReallyClearOnNextRestart").get();
1914                 options.getBooleanOption("ClearOnNextRestart").set(null);
1915                 options.getBooleanOption("ReallyClearOnNextRestart").set(null);
1916                 if (clearConfiguration) {
1917                         /* stop loading the configuration. */
1918                         return;
1919                 }
1920
1921                 loadConfigurationValue("InsertionDelay");
1922                 loadConfigurationValue("PostsPerPage");
1923                 loadConfigurationValue("CharactersPerPost");
1924                 options.getBooleanOption("RequireFullAccess").set(configuration.getBooleanValue("Option/RequireFullAccess").getValue(null));
1925                 loadConfigurationValue("PositiveTrust");
1926                 loadConfigurationValue("NegativeTrust");
1927                 options.getStringOption("TrustComment").set(configuration.getStringValue("Option/TrustComment").getValue(null));
1928                 options.getBooleanOption("ActivateFcpInterface").set(configuration.getBooleanValue("Option/ActivateFcpInterface").getValue(null));
1929                 options.getIntegerOption("FcpFullAccessRequired").set(configuration.getIntValue("Option/FcpFullAccessRequired").getValue(null));
1930                 options.getBooleanOption("SoneRescueMode").set(configuration.getBooleanValue("Option/SoneRescueMode").getValue(null));
1931
1932                 /* load known Sones. */
1933                 int soneCounter = 0;
1934                 while (true) {
1935                         String knownSoneId = configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").getValue(null);
1936                         if (knownSoneId == null) {
1937                                 break;
1938                         }
1939                         synchronized (newSones) {
1940                                 knownSones.add(knownSoneId);
1941                         }
1942                 }
1943
1944                 /* load known posts. */
1945                 int postCounter = 0;
1946                 while (true) {
1947                         String knownPostId = configuration.getStringValue("KnownPosts/" + postCounter++ + "/ID").getValue(null);
1948                         if (knownPostId == null) {
1949                                 break;
1950                         }
1951                         synchronized (newPosts) {
1952                                 knownPosts.add(knownPostId);
1953                         }
1954                 }
1955
1956                 /* load known replies. */
1957                 int replyCounter = 0;
1958                 while (true) {
1959                         String knownReplyId = configuration.getStringValue("KnownReplies/" + replyCounter++ + "/ID").getValue(null);
1960                         if (knownReplyId == null) {
1961                                 break;
1962                         }
1963                         synchronized (newReplies) {
1964                                 knownReplies.add(knownReplyId);
1965                         }
1966                 }
1967
1968                 /* load bookmarked posts. */
1969                 int bookmarkedPostCounter = 0;
1970                 while (true) {
1971                         String bookmarkedPostId = configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").getValue(null);
1972                         if (bookmarkedPostId == null) {
1973                                 break;
1974                         }
1975                         synchronized (bookmarkedPosts) {
1976                                 bookmarkedPosts.add(bookmarkedPostId);
1977                         }
1978                 }
1979
1980         }
1981
1982         /**
1983          * Loads an {@link Integer} configuration value for the option with the
1984          * given name, logging validation failures.
1985          *
1986          * @param optionName
1987          *            The name of the option to load
1988          */
1989         private void loadConfigurationValue(String optionName) {
1990                 try {
1991                         options.getIntegerOption(optionName).set(configuration.getIntValue("Option/" + optionName).getValue(null));
1992                 } catch (IllegalArgumentException iae1) {
1993                         logger.log(Level.WARNING, "Invalid value for " + optionName + " in configuration, using default.");
1994                 }
1995         }
1996
1997         /**
1998          * Generate a Sone URI from the given URI and latest edition.
1999          *
2000          * @param uriString
2001          *            The URI to derive the Sone URI from
2002          * @return The derived URI
2003          */
2004         private FreenetURI getSoneUri(String uriString) {
2005                 try {
2006                         FreenetURI uri = new FreenetURI(uriString).setDocName("Sone").setMetaString(new String[0]);
2007                         return uri;
2008                 } catch (MalformedURLException mue1) {
2009                         logger.log(Level.WARNING, "Could not create Sone URI from URI: " + uriString, mue1);
2010                         return null;
2011                 }
2012         }
2013
2014         //
2015         // INTERFACE IdentityListener
2016         //
2017
2018         /**
2019          * {@inheritDoc}
2020          */
2021         @Override
2022         public void ownIdentityAdded(OwnIdentity ownIdentity) {
2023                 logger.log(Level.FINEST, "Adding OwnIdentity: " + ownIdentity);
2024                 if (ownIdentity.hasContext("Sone")) {
2025                         trustedIdentities.put(ownIdentity, Collections.synchronizedSet(new HashSet<Identity>()));
2026                         addLocalSone(ownIdentity);
2027                 }
2028         }
2029
2030         /**
2031          * {@inheritDoc}
2032          */
2033         @Override
2034         public void ownIdentityRemoved(OwnIdentity ownIdentity) {
2035                 logger.log(Level.FINEST, "Removing OwnIdentity: " + ownIdentity);
2036                 trustedIdentities.remove(ownIdentity);
2037         }
2038
2039         /**
2040          * {@inheritDoc}
2041          */
2042         @Override
2043         public void identityAdded(OwnIdentity ownIdentity, Identity identity) {
2044                 logger.log(Level.FINEST, "Adding Identity: " + identity);
2045                 trustedIdentities.get(ownIdentity).add(identity);
2046                 addRemoteSone(identity);
2047         }
2048
2049         /**
2050          * {@inheritDoc}
2051          */
2052         @Override
2053         public void identityUpdated(OwnIdentity ownIdentity, final Identity identity) {
2054                 new Thread(new Runnable() {
2055
2056                         @Override
2057                         @SuppressWarnings("synthetic-access")
2058                         public void run() {
2059                                 Sone sone = getRemoteSone(identity.getId());
2060                                 sone.setIdentity(identity);
2061                                 sone.setLatestEdition(Numbers.safeParseLong(identity.getProperty("Sone.LatestEdition"), sone.getLatestEdition()));
2062                                 soneDownloader.addSone(sone);
2063                                 soneDownloader.fetchSone(sone);
2064                         }
2065                 }).start();
2066         }
2067
2068         /**
2069          * {@inheritDoc}
2070          */
2071         @Override
2072         public void identityRemoved(OwnIdentity ownIdentity, Identity identity) {
2073                 trustedIdentities.get(ownIdentity).remove(identity);
2074                 boolean foundIdentity = false;
2075                 for (Entry<OwnIdentity, Set<Identity>> trustedIdentity : trustedIdentities.entrySet()) {
2076                         if (trustedIdentity.getKey().equals(ownIdentity)) {
2077                                 continue;
2078                         }
2079                         if (trustedIdentity.getValue().contains(identity)) {
2080                                 foundIdentity = true;
2081                         }
2082                 }
2083                 if (foundIdentity) {
2084                         /* some local identity still trusts this identity, don’t remove. */
2085                         return;
2086                 }
2087                 Sone sone = getSone(identity.getId(), false);
2088                 if (sone == null) {
2089                         /* TODO - we don’t have the Sone anymore. should this happen? */
2090                         return;
2091                 }
2092                 synchronized (posts) {
2093                         synchronized (newPosts) {
2094                                 for (Post post : sone.getPosts()) {
2095                                         posts.remove(post.getId());
2096                                         newPosts.remove(post.getId());
2097                                         coreListenerManager.firePostRemoved(post);
2098                                 }
2099                         }
2100                 }
2101                 synchronized (replies) {
2102                         synchronized (newReplies) {
2103                                 for (Reply reply : sone.getReplies()) {
2104                                         replies.remove(reply.getId());
2105                                         newReplies.remove(reply.getId());
2106                                         coreListenerManager.fireReplyRemoved(reply);
2107                                 }
2108                         }
2109                 }
2110                 synchronized (remoteSones) {
2111                         remoteSones.remove(identity.getId());
2112                 }
2113                 synchronized (newSones) {
2114                         newSones.remove(identity.getId());
2115                         coreListenerManager.fireSoneRemoved(sone);
2116                 }
2117         }
2118
2119         //
2120         // INTERFACE UpdateListener
2121         //
2122
2123         /**
2124          * {@inheritDoc}
2125          */
2126         @Override
2127         public void updateFound(Version version, long releaseTime, long latestEdition) {
2128                 coreListenerManager.fireUpdateFound(version, releaseTime, latestEdition);
2129         }
2130
2131         //
2132         // SONEINSERTLISTENER METHODS
2133         //
2134
2135         /**
2136          * {@inheritDoc}
2137          */
2138         public void insertStarted(Sone sone) {
2139                 coreListenerManager.fireSoneInserting(sone);
2140         }
2141
2142         /**
2143          * {@inheritDoc}
2144          */
2145         @Override
2146         public void insertFinished(Sone sone, long insertDuration) {
2147                 coreListenerManager.fireSoneInserted(sone, insertDuration);
2148         }
2149
2150         /**
2151          * {@inheritDoc}
2152          */
2153         @Override
2154         public void insertAborted(Sone sone, Throwable cause) {
2155                 coreListenerManager.fireSoneInsertAborted(sone, cause);
2156         }
2157
2158         /**
2159          * Convenience interface for external classes that want to access the core’s
2160          * configuration.
2161          *
2162          * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
2163          */
2164         public static class Preferences {
2165
2166                 /** The wrapped options. */
2167                 private final Options options;
2168
2169                 /**
2170                  * Creates a new preferences object wrapped around the given options.
2171                  *
2172                  * @param options
2173                  *            The options to wrap
2174                  */
2175                 public Preferences(Options options) {
2176                         this.options = options;
2177                 }
2178
2179                 /**
2180                  * Returns the insertion delay.
2181                  *
2182                  * @return The insertion delay
2183                  */
2184                 public int getInsertionDelay() {
2185                         return options.getIntegerOption("InsertionDelay").get();
2186                 }
2187
2188                 /**
2189                  * Validates the given insertion delay.
2190                  *
2191                  * @param insertionDelay
2192                  *            The insertion delay to validate
2193                  * @return {@code true} if the given insertion delay was valid, {@code
2194                  *         false} otherwise
2195                  */
2196                 public boolean validateInsertionDelay(Integer insertionDelay) {
2197                         return options.getIntegerOption("InsertionDelay").validate(insertionDelay);
2198                 }
2199
2200                 /**
2201                  * Sets the insertion delay
2202                  *
2203                  * @param insertionDelay
2204                  *            The new insertion delay, or {@code null} to restore it to
2205                  *            the default value
2206                  * @return This preferences
2207                  */
2208                 public Preferences setInsertionDelay(Integer insertionDelay) {
2209                         options.getIntegerOption("InsertionDelay").set(insertionDelay);
2210                         return this;
2211                 }
2212
2213                 /**
2214                  * Returns the number of posts to show per page.
2215                  *
2216                  * @return The number of posts to show per page
2217                  */
2218                 public int getPostsPerPage() {
2219                         return options.getIntegerOption("PostsPerPage").get();
2220                 }
2221
2222                 /**
2223                  * Validates the number of posts per page.
2224                  *
2225                  * @param postsPerPage
2226                  *            The number of posts per page
2227                  * @return {@code true} if the number of posts per page was valid,
2228                  *         {@code false} otherwise
2229                  */
2230                 public boolean validatePostsPerPage(Integer postsPerPage) {
2231                         return options.getIntegerOption("PostsPerPage").validate(postsPerPage);
2232                 }
2233
2234                 /**
2235                  * Sets the number of posts to show per page.
2236                  *
2237                  * @param postsPerPage
2238                  *            The number of posts to show per page
2239                  * @return This preferences object
2240                  */
2241                 public Preferences setPostsPerPage(Integer postsPerPage) {
2242                         options.getIntegerOption("PostsPerPage").set(postsPerPage);
2243                         return this;
2244                 }
2245
2246                 /**
2247                  * Returns the number of characters per post, or <code>-1</code> if the
2248                  * posts should not be cut off.
2249                  *
2250                  * @return The numbers of characters per post
2251                  */
2252                 public int getCharactersPerPost() {
2253                         return options.getIntegerOption("CharactersPerPost").get();
2254                 }
2255
2256                 /**
2257                  * Validates the number of characters per post.
2258                  *
2259                  * @param charactersPerPost
2260                  *            The number of characters per post
2261                  * @return {@code true} if the number of characters per post was valid,
2262                  *         {@code false} otherwise
2263                  */
2264                 public boolean validateCharactersPerPost(Integer charactersPerPost) {
2265                         return options.getIntegerOption("CharactersPerPost").validate(charactersPerPost);
2266                 }
2267
2268                 /**
2269                  * Sets the number of characters per post.
2270                  *
2271                  * @param charactersPerPost
2272                  *            The number of characters per post, or <code>-1</code> to
2273                  *            not cut off the posts
2274                  * @return This preferences objects
2275                  */
2276                 public Preferences setCharactersPerPost(Integer charactersPerPost) {
2277                         options.getIntegerOption("CharactersPerPost").set(charactersPerPost);
2278                         return this;
2279                 }
2280
2281                 /**
2282                  * Returns whether Sone requires full access to be even visible.
2283                  *
2284                  * @return {@code true} if Sone requires full access, {@code false}
2285                  *         otherwise
2286                  */
2287                 public boolean isRequireFullAccess() {
2288                         return options.getBooleanOption("RequireFullAccess").get();
2289                 }
2290
2291                 /**
2292                  * Sets whether Sone requires full access to be even visible.
2293                  *
2294                  * @param requireFullAccess
2295                  *            {@code true} if Sone requires full access, {@code false}
2296                  *            otherwise
2297                  */
2298                 public void setRequireFullAccess(Boolean requireFullAccess) {
2299                         options.getBooleanOption("RequireFullAccess").set(requireFullAccess);
2300                 }
2301
2302                 /**
2303                  * Returns the positive trust.
2304                  *
2305                  * @return The positive trust
2306                  */
2307                 public int getPositiveTrust() {
2308                         return options.getIntegerOption("PositiveTrust").get();
2309                 }
2310
2311                 /**
2312                  * Validates the positive trust.
2313                  *
2314                  * @param positiveTrust
2315                  *            The positive trust to validate
2316                  * @return {@code true} if the positive trust was valid, {@code false}
2317                  *         otherwise
2318                  */
2319                 public boolean validatePositiveTrust(Integer positiveTrust) {
2320                         return options.getIntegerOption("PositiveTrust").validate(positiveTrust);
2321                 }
2322
2323                 /**
2324                  * Sets the positive trust.
2325                  *
2326                  * @param positiveTrust
2327                  *            The new positive trust, or {@code null} to restore it to
2328                  *            the default vlaue
2329                  * @return This preferences
2330                  */
2331                 public Preferences setPositiveTrust(Integer positiveTrust) {
2332                         options.getIntegerOption("PositiveTrust").set(positiveTrust);
2333                         return this;
2334                 }
2335
2336                 /**
2337                  * Returns the negative trust.
2338                  *
2339                  * @return The negative trust
2340                  */
2341                 public int getNegativeTrust() {
2342                         return options.getIntegerOption("NegativeTrust").get();
2343                 }
2344
2345                 /**
2346                  * Validates the negative trust.
2347                  *
2348                  * @param negativeTrust
2349                  *            The negative trust to validate
2350                  * @return {@code true} if the negative trust was valid, {@code false}
2351                  *         otherwise
2352                  */
2353                 public boolean validateNegativeTrust(Integer negativeTrust) {
2354                         return options.getIntegerOption("NegativeTrust").validate(negativeTrust);
2355                 }
2356
2357                 /**
2358                  * Sets the negative trust.
2359                  *
2360                  * @param negativeTrust
2361                  *            The negative trust, or {@code null} to restore it to the
2362                  *            default value
2363                  * @return The preferences
2364                  */
2365                 public Preferences setNegativeTrust(Integer negativeTrust) {
2366                         options.getIntegerOption("NegativeTrust").set(negativeTrust);
2367                         return this;
2368                 }
2369
2370                 /**
2371                  * Returns the trust comment. This is the comment that is set in the web
2372                  * of trust when a trust value is assigned to an identity.
2373                  *
2374                  * @return The trust comment
2375                  */
2376                 public String getTrustComment() {
2377                         return options.getStringOption("TrustComment").get();
2378                 }
2379
2380                 /**
2381                  * Sets the trust comment.
2382                  *
2383                  * @param trustComment
2384                  *            The trust comment, or {@code null} to restore it to the
2385                  *            default value
2386                  * @return This preferences
2387                  */
2388                 public Preferences setTrustComment(String trustComment) {
2389                         options.getStringOption("TrustComment").set(trustComment);
2390                         return this;
2391                 }
2392
2393                 /**
2394                  * Returns whether the {@link FcpInterface FCP interface} is currently
2395                  * active.
2396                  *
2397                  * @see FcpInterface#setActive(boolean)
2398                  * @return {@code true} if the FCP interface is currently active,
2399                  *         {@code false} otherwise
2400                  */
2401                 public boolean isFcpInterfaceActive() {
2402                         return options.getBooleanOption("ActivateFcpInterface").get();
2403                 }
2404
2405                 /**
2406                  * Sets whether the {@link FcpInterface FCP interface} is currently
2407                  * active.
2408                  *
2409                  * @see FcpInterface#setActive(boolean)
2410                  * @param fcpInterfaceActive
2411                  *            {@code true} to activate the FCP interface, {@code false}
2412                  *            to deactivate the FCP interface
2413                  * @return This preferences object
2414                  */
2415                 public Preferences setFcpInterfaceActive(boolean fcpInterfaceActive) {
2416                         options.getBooleanOption("ActivateFcpInterface").set(fcpInterfaceActive);
2417                         return this;
2418                 }
2419
2420                 /**
2421                  * Returns the action level for which full access to the FCP interface
2422                  * is required.
2423                  *
2424                  * @return The action level for which full access to the FCP interface
2425                  *         is required
2426                  */
2427                 public FullAccessRequired getFcpFullAccessRequired() {
2428                         return FullAccessRequired.values()[options.getIntegerOption("FcpFullAccessRequired").get()];
2429                 }
2430
2431                 /**
2432                  * Sets the action level for which full access to the FCP interface is
2433                  * required
2434                  *
2435                  * @param fcpFullAccessRequired
2436                  *            The action level
2437                  * @return This preferences
2438                  */
2439                 public Preferences setFcpFullAccessRequired(FullAccessRequired fcpFullAccessRequired) {
2440                         options.getIntegerOption("FcpFullAccessRequired").set((fcpFullAccessRequired != null) ? fcpFullAccessRequired.ordinal() : null);
2441                         return this;
2442                 }
2443
2444                 /**
2445                  * Returns whether Sone should clear its settings on the next restart.
2446                  * In order to be effective, {@link #isReallyClearOnNextRestart()} needs
2447                  * to return {@code true} as well!
2448                  *
2449                  * @return {@code true} if Sone should clear its settings on the next
2450                  *         restart, {@code false} otherwise
2451                  */
2452                 public boolean isClearOnNextRestart() {
2453                         return options.getBooleanOption("ClearOnNextRestart").get();
2454                 }
2455
2456                 /**
2457                  * Sets whether Sone will clear its settings on the next restart.
2458                  *
2459                  * @param clearOnNextRestart
2460                  *            {@code true} if Sone should clear its settings on the next
2461                  *            restart, {@code false} otherwise
2462                  * @return This preferences
2463                  */
2464                 public Preferences setClearOnNextRestart(Boolean clearOnNextRestart) {
2465                         options.getBooleanOption("ClearOnNextRestart").set(clearOnNextRestart);
2466                         return this;
2467                 }
2468
2469                 /**
2470                  * Returns whether Sone should really clear its settings on next
2471                  * restart. This is a confirmation option that needs to be set in
2472                  * addition to {@link #isClearOnNextRestart()} in order to clear Sone’s
2473                  * settings on the next restart.
2474                  *
2475                  * @return {@code true} if Sone should really clear its settings on the
2476                  *         next restart, {@code false} otherwise
2477                  */
2478                 public boolean isReallyClearOnNextRestart() {
2479                         return options.getBooleanOption("ReallyClearOnNextRestart").get();
2480                 }
2481
2482                 /**
2483                  * Sets whether Sone should really clear its settings on the next
2484                  * restart.
2485                  *
2486                  * @param reallyClearOnNextRestart
2487                  *            {@code true} if Sone should really clear its settings on
2488                  *            the next restart, {@code false} otherwise
2489                  * @return This preferences
2490                  */
2491                 public Preferences setReallyClearOnNextRestart(Boolean reallyClearOnNextRestart) {
2492                         options.getBooleanOption("ReallyClearOnNextRestart").set(reallyClearOnNextRestart);
2493                         return this;
2494                 }
2495
2496         }
2497
2498 }