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