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.Album;
  38 import net.pterodactylus.sone.data.Client;
  39 import net.pterodactylus.sone.data.Image;
  40 import net.pterodactylus.sone.data.Post;
  41 import net.pterodactylus.sone.data.PostReply;
  42 import net.pterodactylus.sone.data.Profile;
  43 import net.pterodactylus.sone.data.Reply;
  44 import net.pterodactylus.sone.data.Sone;
  45 import net.pterodactylus.sone.data.TemporaryImage;
  46 import net.pterodactylus.sone.data.Profile.Field;
  47 import net.pterodactylus.sone.fcp.FcpInterface;
  48 import net.pterodactylus.sone.fcp.FcpInterface.FullAccessRequired;
  49 import net.pterodactylus.sone.freenet.wot.Identity;
  50 import net.pterodactylus.sone.freenet.wot.IdentityListener;
  51 import net.pterodactylus.sone.freenet.wot.IdentityManager;
  52 import net.pterodactylus.sone.freenet.wot.OwnIdentity;
  53 import net.pterodactylus.sone.freenet.wot.Trust;
  54 import net.pterodactylus.sone.freenet.wot.WebOfTrustException;
  55 import net.pterodactylus.sone.main.SonePlugin;
  56 import net.pterodactylus.util.config.Configuration;
  57 import net.pterodactylus.util.config.ConfigurationException;
  58 import net.pterodactylus.util.logging.Logging;
  59 import net.pterodactylus.util.number.Numbers;
  60 import net.pterodactylus.util.service.AbstractService;
  61 import net.pterodactylus.util.thread.Ticker;
  62 import net.pterodactylus.util.validation.EqualityValidator;
  63 import net.pterodactylus.util.validation.IntegerRangeValidator;
  64 import net.pterodactylus.util.validation.OrValidator;
  65 import net.pterodactylus.util.validation.Validation;
  66 import net.pterodactylus.util.version.Version;
  67 import freenet.keys.FreenetURI;
  68
  69 /**
  70  * The Sone core.
  71  *
  72  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  73  */
  74 public class Core extends AbstractService implements IdentityListener, UpdateListener, SoneProvider, PostProvider, SoneInsertListener, ImageInsertListener {
  75
  76         /**
  77          * Enumeration for the possible states of a {@link Sone}.
  78          *
  79          * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  80          */
  81         public enum SoneStatus {
  82
  83                 /** The Sone is unknown, i.e. not yet downloaded. */
  84                 unknown,
  85
  86                 /** The Sone is idle, i.e. not being downloaded or inserted. */
  87                 idle,
  88
  89                 /** The Sone is currently being inserted. */
  90                 inserting,
  91
  92                 /** The Sone is currently being downloaded. */
  93                 downloading,
  94         }
  95
  96         /** The logger. */
  97         private static final Logger logger = Logging.getLogger(Core.class);
  98
  99         /** The options. */
 100         private final Options options = new Options();
 101
 102         /** The preferences. */
 103         private final Preferences preferences = new Preferences(options);
 104
 105         /** The core listener manager. */
 106         private final CoreListenerManager coreListenerManager = new CoreListenerManager(this);
 107
 108         /** The configuration. */
 109         private Configuration configuration;
 110
 111         /** Whether we’re currently saving the configuration. */
 112         private boolean storingConfiguration = false;
 113
 114         /** The identity manager. */
 115         private final IdentityManager identityManager;
 116
 117         /** Interface to freenet. */
 118         private final FreenetInterface freenetInterface;
 119
 120         /** The Sone downloader. */
 121         private final SoneDownloader soneDownloader;
 122
 123         /** The image inserter. */
 124         private final ImageInserter imageInserter;
 125
 126         /** Sone downloader thread-pool. */
 127         private final ExecutorService soneDownloaders = Executors.newFixedThreadPool(10);
 128
 129         /** The update checker. */
 130         private final UpdateChecker updateChecker;
 131
 132         /** The FCP interface. */
 133         private volatile FcpInterface fcpInterface;
 134
 135         /** The Sones’ statuses. */
 136         /* synchronize access on itself. */
 137         private final Map<Sone, SoneStatus> soneStatuses = new HashMap<Sone, SoneStatus>();
 138
 139         /** The times Sones were followed. */
 140         private final Map<Sone, Long> soneFollowingTimes = new HashMap<Sone, Long>();
 141
 142         /** Locked local Sones. */
 143         /* synchronize on itself. */
 144         private final Set<Sone> lockedSones = new HashSet<Sone>();
 145
 146         /** Sone inserters. */
 147         /* synchronize access on this on localSones. */
 148         private final Map<Sone, SoneInserter> soneInserters = new HashMap<Sone, SoneInserter>();
 149
 150         /** Sone rescuers. */
 151         /* synchronize access on this on localSones. */
 152         private final Map<Sone, SoneRescuer> soneRescuers = new HashMap<Sone, SoneRescuer>();
 153
 154         /** All local Sones. */
 155         /* synchronize access on this on itself. */
 156         private Map<String, Sone> localSones = new HashMap<String, Sone>();
 157
 158         /** All remote Sones. */
 159         /* synchronize access on this on itself. */
 160         private Map<String, Sone> remoteSones = new HashMap<String, Sone>();
 161
 162         /** All new Sones. */
 163         private Set<String> newSones = new HashSet<String>();
 164
 165         /** All known Sones. */
 166         /* synchronize access on {@link #newSones}. */
 167         private Set<String> knownSones = new HashSet<String>();
 168
 169         /** All posts. */
 170         private Map<String, Post> posts = new HashMap<String, Post>();
 171
 172         /** All new posts. */
 173         private Set<String> newPosts = new HashSet<String>();
 174
 175         /** All known posts. */
 176         /* synchronize access on {@link #newPosts}. */
 177         private Set<String> knownPosts = new HashSet<String>();
 178
 179         /** All replies. */
 180         private Map<String, PostReply> replies = new HashMap<String, PostReply>();
 181
 182         /** All new replies. */
 183         private Set<String> newReplies = new HashSet<String>();
 184
 185         /** All known replies. */
 186         private Set<String> knownReplies = new HashSet<String>();
 187
 188         /** All bookmarked posts. */
 189         /* synchronize access on itself. */
 190         private Set<String> bookmarkedPosts = new HashSet<String>();
 191
 192         /** Trusted identities, sorted by own identities. */
 193         private Map<OwnIdentity, Set<Identity>> trustedIdentities = Collections.synchronizedMap(new HashMap<OwnIdentity, Set<Identity>>());
 194
 195         /** All known albums. */
 196         private Map<String, Album> albums = new HashMap<String, Album>();
 197
 198         /** All known images. */
 199         private Map<String, Image> images = new HashMap<String, Image>();
 200
 201         /** All temporary images. */
 202         private Map<String, TemporaryImage> temporaryImages = new HashMap<String, TemporaryImage>();
 203
 204         /** Ticker for threads that mark own elements as known. */
 205         private Ticker localElementTicker = new Ticker();
 206
 207         /** The time the configuration was last touched. */
 208         private volatile long lastConfigurationUpdate;
 209
 210         /**
 211          * Creates a new core.
 212          *
 213          * @param configuration
 214          *            The configuration of the core
 215          * @param freenetInterface
 216          *            The freenet interface
 217          * @param identityManager
 218          *            The identity manager
 219          */
 220         public Core(Configuration configuration, FreenetInterface freenetInterface, IdentityManager identityManager) {
 221                 super("Sone Core");
 222                 this.configuration = configuration;
 223                 this.freenetInterface = freenetInterface;
 224                 this.identityManager = identityManager;
 225                 this.soneDownloader = new SoneDownloader(this, freenetInterface);
 226                 this.imageInserter = new ImageInserter(this, freenetInterface);
 227                 this.updateChecker = new UpdateChecker(freenetInterface);
 228         }
 229
 230         //
 231         // LISTENER MANAGEMENT
 232         //
 233
 234         /**
 235          * Adds a new core listener.
 236          *
 237          * @param coreListener
 238          *            The listener to add
 239          */
 240         public void addCoreListener(CoreListener coreListener) {
 241                 coreListenerManager.addListener(coreListener);
 242         }
 243
 244         /**
 245          * Removes a core listener.
 246          *
 247          * @param coreListener
 248          *            The listener to remove
 249          */
 250         public void removeCoreListener(CoreListener coreListener) {
 251                 coreListenerManager.removeListener(coreListener);
 252         }
 253
 254         //
 255         // ACCESSORS
 256         //
 257
 258         /**
 259          * Sets the configuration to use. This will automatically save the current
 260          * configuration to the given configuration.
 261          *
 262          * @param configuration
 263          *            The new configuration to use
 264          */
 265         public void setConfiguration(Configuration configuration) {
 266                 this.configuration = configuration;
 267                 touchConfiguration();
 268         }
 269
 270         /**
 271          * Returns the options used by the core.
 272          *
 273          * @return The options of the core
 274          */
 275         public Preferences getPreferences() {
 276                 return preferences;
 277         }
 278
 279         /**
 280          * Returns the identity manager used by the core.
 281          *
 282          * @return The identity manager
 283          */
 284         public IdentityManager getIdentityManager() {
 285                 return identityManager;
 286         }
 287
 288         /**
 289          * Returns the update checker.
 290          *
 291          * @return The update checker
 292          */
 293         public UpdateChecker getUpdateChecker() {
 294                 return updateChecker;
 295         }
 296
 297         /**
 298          * Sets the FCP interface to use.
 299          *
 300          * @param fcpInterface
 301          *            The FCP interface to use
 302          */
 303         public void setFcpInterface(FcpInterface fcpInterface) {
 304                 this.fcpInterface = fcpInterface;
 305         }
 306
 307         /**
 308          * Returns the status of the given Sone.
 309          *
 310          * @param sone
 311          *            The Sone to get the status for
 312          * @return The status of the Sone
 313          */
 314         public SoneStatus getSoneStatus(Sone sone) {
 315                 synchronized (soneStatuses) {
 316                         return soneStatuses.get(sone);
 317                 }
 318         }
 319
 320         /**
 321          * Sets the status of the given Sone.
 322          *
 323          * @param sone
 324          *            The Sone to set the status of
 325          * @param soneStatus
 326          *            The status to set
 327          */
 328         public void setSoneStatus(Sone sone, SoneStatus soneStatus) {
 329                 synchronized (soneStatuses) {
 330                         soneStatuses.put(sone, soneStatus);
 331                 }
 332         }
 333
 334         /**
 335          * Returns the Sone rescuer for the given local Sone.
 336          *
 337          * @param sone
 338          *            The local Sone to get the rescuer for
 339          * @return The Sone rescuer for the given Sone
 340          */
 341         public SoneRescuer getSoneRescuer(Sone sone) {
 342                 Validation.begin().isNotNull("Sone", sone).check().is("Local Sone", isLocalSone(sone)).check();
 343                 synchronized (localSones) {
 344                         SoneRescuer soneRescuer = soneRescuers.get(sone);
 345                         if (soneRescuer == null) {
 346                                 soneRescuer = new SoneRescuer(this, soneDownloader, sone);
 347                                 soneRescuers.put(sone, soneRescuer);
 348                                 soneRescuer.start();
 349                         }
 350                         return soneRescuer;
 351                 }
 352         }
 353
 354         /**
 355          * Returns whether the given Sone is currently locked.
 356          *
 357          * @param sone
 358          *            The sone to check
 359          * @return {@code true} if the Sone is locked, {@code false} if it is not
 360          */
 361         public boolean isLocked(Sone sone) {
 362                 synchronized (lockedSones) {
 363                         return lockedSones.contains(sone);
 364                 }
 365         }
 366
 367         /**
 368          * Returns all Sones, remote and local.
 369          *
 370          * @return All Sones
 371          */
 372         public Set<Sone> getSones() {
 373                 Set<Sone> allSones = new HashSet<Sone>();
 374                 allSones.addAll(getLocalSones());
 375                 allSones.addAll(getRemoteSones());
 376                 return allSones;
 377         }
 378
 379         /**
 380          * Returns the Sone with the given ID, regardless whether it’s local or
 381          * remote.
 382          *
 383          * @param id
 384          *            The ID of the Sone to get
 385          * @return The Sone with the given ID, or {@code null} if there is no such
 386          *         Sone
 387          */
 388         public Sone getSone(String id) {
 389                 return getSone(id, true);
 390         }
 391
 392         /**
 393          * Returns the Sone with the given ID, regardless whether it’s local or
 394          * remote.
 395          *
 396          * @param id
 397          *            The ID of the Sone to get
 398          * @param create
 399          *            {@code true} to create a new Sone if none exists,
 400          *            {@code false} to return {@code null} if a Sone with the given
 401          *            ID does not exist
 402          * @return The Sone with the given ID, or {@code null} if there is no such
 403          *         Sone
 404          */
 405         @Override
 406         public Sone getSone(String id, boolean create) {
 407                 if (isLocalSone(id)) {
 408                         return getLocalSone(id);
 409                 }
 410                 return getRemoteSone(id, create);
 411         }
 412
 413         /**
 414          * Checks whether the core knows a Sone with the given ID.
 415          *
 416          * @param id
 417          *            The ID of the Sone
 418          * @return {@code true} if there is a Sone with the given ID, {@code false}
 419          *         otherwise
 420          */
 421         public boolean hasSone(String id) {
 422                 return isLocalSone(id) || isRemoteSone(id);
 423         }
 424
 425         /**
 426          * Returns whether the given Sone is a local Sone.
 427          *
 428          * @param sone
 429          *            The Sone to check for its locality
 430          * @return {@code true} if the given Sone is local, {@code false} otherwise
 431          */
 432         public boolean isLocalSone(Sone sone) {
 433                 synchronized (localSones) {
 434                         return localSones.containsKey(sone.getId());
 435                 }
 436         }
 437
 438         /**
 439          * Returns whether the given ID is the ID of a local Sone.
 440          *
 441          * @param id
 442          *            The Sone ID to check for its locality
 443          * @return {@code true} if the given ID is a local Sone, {@code false}
 444          *         otherwise
 445          */
 446         public boolean isLocalSone(String id) {
 447                 synchronized (localSones) {
 448                         return localSones.containsKey(id);
 449                 }
 450         }
 451
 452         /**
 453          * Returns all local Sones.
 454          *
 455          * @return All local Sones
 456          */
 457         public Set<Sone> getLocalSones() {
 458                 synchronized (localSones) {
 459                         return new HashSet<Sone>(localSones.values());
 460                 }
 461         }
 462
 463         /**
 464          * Returns the local Sone with the given ID.
 465          *
 466          * @param id
 467          *            The ID of the Sone to get
 468          * @return The Sone with the given ID
 469          */
 470         public Sone getLocalSone(String id) {
 471                 return getLocalSone(id, true);
 472         }
 473
 474         /**
 475          * Returns the local Sone with the given ID, optionally creating a new Sone.
 476          *
 477          * @param id
 478          *            The ID of the Sone
 479          * @param create
 480          *            {@code true} to create a new Sone if none exists,
 481          *            {@code false} to return null if none exists
 482          * @return The Sone with the given ID, or {@code null}
 483          */
 484         public Sone getLocalSone(String id, boolean create) {
 485                 synchronized (localSones) {
 486                         Sone sone = localSones.get(id);
 487                         if ((sone == null) && create) {
 488                                 sone = new Sone(id);
 489                                 localSones.put(id, sone);
 490                                 setSoneStatus(sone, SoneStatus.unknown);
 491                         }
 492                         return sone;
 493                 }
 494         }
 495
 496         /**
 497          * Returns all remote Sones.
 498          *
 499          * @return All remote Sones
 500          */
 501         public Set<Sone> getRemoteSones() {
 502                 synchronized (remoteSones) {
 503                         return new HashSet<Sone>(remoteSones.values());
 504                 }
 505         }
 506
 507         /**
 508          * Returns the remote Sone with the given ID.
 509          *
 510          * @param id
 511          *            The ID of the remote Sone to get
 512          * @param create
 513          *            {@code true} to always create a Sone, {@code false} to return
 514          *            {@code null} if no Sone with the given ID exists
 515          * @return The Sone with the given ID
 516          */
 517         public Sone getRemoteSone(String id, boolean create) {
 518                 synchronized (remoteSones) {
 519                         Sone sone = remoteSones.get(id);
 520                         if ((sone == null) && create && (id != null) && (id.length() == 43)) {
 521                                 sone = new Sone(id);
 522                                 remoteSones.put(id, sone);
 523                                 setSoneStatus(sone, SoneStatus.unknown);
 524                         }
 525                         return sone;
 526                 }
 527         }
 528
 529         /**
 530          * Returns whether the given Sone is a remote Sone.
 531          *
 532          * @param sone
 533          *            The Sone to check
 534          * @return {@code true} if the given Sone is a remote Sone, {@code false}
 535          *         otherwise
 536          */
 537         public boolean isRemoteSone(Sone sone) {
 538                 synchronized (remoteSones) {
 539                         return remoteSones.containsKey(sone.getId());
 540                 }
 541         }
 542
 543         /**
 544          * Returns whether the Sone with the given ID is a remote Sone.
 545          *
 546          * @param id
 547          *            The ID of the Sone to check
 548          * @return {@code true} if the Sone with the given ID is a remote Sone,
 549          *         {@code false} otherwise
 550          */
 551         public boolean isRemoteSone(String id) {
 552                 synchronized (remoteSones) {
 553                         return remoteSones.containsKey(id);
 554                 }
 555         }
 556
 557         /**
 558          * Returns whether the Sone with the given ID is a new Sone.
 559          *
 560          * @param soneId
 561          *            The ID of the sone to check for
 562          * @return {@code true} if the given Sone is new, false otherwise
 563          */
 564         public boolean isNewSone(String soneId) {
 565                 synchronized (newSones) {
 566                         return !knownSones.contains(soneId) && newSones.contains(soneId);
 567                 }
 568         }
 569
 570         /**
 571          * Returns whether the given Sone has been modified.
 572          *
 573          * @param sone
 574          *            The Sone to check for modifications
 575          * @return {@code true} if a modification has been detected in the Sone,
 576          *         {@code false} otherwise
 577          */
 578         public boolean isModifiedSone(Sone sone) {
 579                 return (soneInserters.containsKey(sone)) ? soneInserters.get(sone).isModified() : false;
 580         }
 581
 582         /**
 583          * Returns the time when the given was first followed by any local Sone.
 584          *
 585          * @param sone
 586          *            The Sone to get the time for
 587          * @return The time (in milliseconds since Jan 1, 1970) the Sone has first
 588          *         been followed, or {@link Long#MAX_VALUE}
 589          */
 590         public long getSoneFollowingTime(Sone sone) {
 591                 synchronized (soneFollowingTimes) {
 592                         if (soneFollowingTimes.containsKey(sone)) {
 593                                 return soneFollowingTimes.get(sone);
 594                         }
 595                         return Long.MAX_VALUE;
 596                 }
 597         }
 598
 599         /**
 600          * Returns whether the target Sone is trusted by the origin Sone.
 601          *
 602          * @param origin
 603          *            The origin Sone
 604          * @param target
 605          *            The target Sone
 606          * @return {@code true} if the target Sone is trusted by the origin Sone
 607          */
 608         public boolean isSoneTrusted(Sone origin, Sone target) {
 609                 Validation.begin().isNotNull("Origin", origin).isNotNull("Target", target).check().isInstanceOf("Origin’s OwnIdentity", origin.getIdentity(), OwnIdentity.class).check();
 610                 return trustedIdentities.containsKey(origin.getIdentity()) && trustedIdentities.get(origin.getIdentity()).contains(target.getIdentity());
 611         }
 612
 613         /**
 614          * Returns the post with the given ID.
 615          *
 616          * @param postId
 617          *            The ID of the post to get
 618          * @return The post with the given ID, or a new post with the given ID
 619          */
 620         public Post getPost(String postId) {
 621                 return getPost(postId, true);
 622         }
 623
 624         /**
 625          * Returns the post with the given ID, optionally creating a new post.
 626          *
 627          * @param postId
 628          *            The ID of the post to get
 629          * @param create
 630          *            {@code true} it create a new post if no post with the given ID
 631          *            exists, {@code false} to return {@code null}
 632          * @return The post, or {@code null} if there is no such post
 633          */
 634         @Override
 635         public Post getPost(String postId, boolean create) {
 636                 synchronized (posts) {
 637                         Post post = posts.get(postId);
 638                         if ((post == null) && create) {
 639                                 post = new Post(postId);
 640                                 posts.put(postId, post);
 641                         }
 642                         return post;
 643                 }
 644         }
 645
 646         /**
 647          * Returns whether the given post ID is new.
 648          *
 649          * @param postId
 650          *            The post ID
 651          * @return {@code true} if the post is considered to be new, {@code false}
 652          *         otherwise
 653          */
 654         public boolean isNewPost(String postId) {
 655                 synchronized (newPosts) {
 656                         return !knownPosts.contains(postId) && newPosts.contains(postId);
 657                 }
 658         }
 659
 660         /**
 661          * Returns all posts that have the given Sone as recipient.
 662          *
 663          * @see Post#getRecipient()
 664          * @param recipient
 665          *            The recipient of the posts
 666          * @return All posts that have the given Sone as recipient
 667          */
 668         public Set<Post> getDirectedPosts(Sone recipient) {
 669                 Validation.begin().isNotNull("Recipient", recipient).check();
 670                 Set<Post> directedPosts = new HashSet<Post>();
 671                 synchronized (posts) {
 672                         for (Post post : posts.values()) {
 673                                 if (recipient.equals(post.getRecipient())) {
 674                                         directedPosts.add(post);
 675                                 }
 676                         }
 677                 }
 678                 return directedPosts;
 679         }
 680
 681         /**
 682          * Returns the reply with the given ID. If there is no reply with the given
 683          * ID yet, a new one is created.
 684          *
 685          * @param replyId
 686          *            The ID of the reply to get
 687          * @return The reply
 688          */
 689         public PostReply getReply(String replyId) {
 690                 return getReply(replyId, true);
 691         }
 692
 693         /**
 694          * Returns the reply with the given ID. If there is no reply with the given
 695          * ID yet, a new one is created, unless {@code create} is false in which
 696          * case {@code null} is returned.
 697          *
 698          * @param replyId
 699          *            The ID of the reply to get
 700          * @param create
 701          *            {@code true} to always return a {@link Reply}, {@code false}
 702          *            to return {@code null} if no reply can be found
 703          * @return The reply, or {@code null} if there is no such reply
 704          */
 705         public PostReply getReply(String replyId, boolean create) {
 706                 synchronized (replies) {
 707                         PostReply reply = replies.get(replyId);
 708                         if (create && (reply == null)) {
 709                                 reply = new PostReply(replyId);
 710                                 replies.put(replyId, reply);
 711                         }
 712                         return reply;
 713                 }
 714         }
 715
 716         /**
 717          * Returns all replies for the given post, order ascending by time.
 718          *
 719          * @param post
 720          *            The post to get all replies for
 721          * @return All replies for the given post
 722          */
 723         public List<PostReply> getReplies(Post post) {
 724                 Set<Sone> sones = getSones();
 725                 List<PostReply> replies = new ArrayList<PostReply>();
 726                 for (Sone sone : sones) {
 727                         for (PostReply reply : sone.getReplies()) {
 728                                 if (reply.getPost().equals(post)) {
 729                                         replies.add(reply);
 730                                 }
 731                         }
 732                 }
 733                 Collections.sort(replies, Reply.TIME_COMPARATOR);
 734                 return replies;
 735         }
 736
 737         /**
 738          * Returns whether the reply with the given ID is new.
 739          *
 740          * @param replyId
 741          *            The ID of the reply to check
 742          * @return {@code true} if the reply is considered to be new, {@code false}
 743          *         otherwise
 744          */
 745         public boolean isNewReply(String replyId) {
 746                 synchronized (newReplies) {
 747                         return !knownReplies.contains(replyId) && newReplies.contains(replyId);
 748                 }
 749         }
 750
 751         /**
 752          * Returns all Sones that have liked the given post.
 753          *
 754          * @param post
 755          *            The post to get the liking Sones for
 756          * @return The Sones that like the given post
 757          */
 758         public Set<Sone> getLikes(Post post) {
 759                 Set<Sone> sones = new HashSet<Sone>();
 760                 for (Sone sone : getSones()) {
 761                         if (sone.getLikedPostIds().contains(post.getId())) {
 762                                 sones.add(sone);
 763                         }
 764                 }
 765                 return sones;
 766         }
 767
 768         /**
 769          * Returns all Sones that have liked the given reply.
 770          *
 771          * @param reply
 772          *            The reply to get the liking Sones for
 773          * @return The Sones that like the given reply
 774          */
 775         public Set<Sone> getLikes(PostReply reply) {
 776                 Set<Sone> sones = new HashSet<Sone>();
 777                 for (Sone sone : getSones()) {
 778                         if (sone.getLikedReplyIds().contains(reply.getId())) {
 779                                 sones.add(sone);
 780                         }
 781                 }
 782                 return sones;
 783         }
 784
 785         /**
 786          * Returns whether the given post is bookmarked.
 787          *
 788          * @param post
 789          *            The post to check
 790          * @return {@code true} if the given post is bookmarked, {@code false}
 791          *         otherwise
 792          */
 793         public boolean isBookmarked(Post post) {
 794                 return isPostBookmarked(post.getId());
 795         }
 796
 797         /**
 798          * Returns whether the post with the given ID is bookmarked.
 799          *
 800          * @param id
 801          *            The ID of the post to check
 802          * @return {@code true} if the post with the given ID is bookmarked,
 803          *         {@code false} otherwise
 804          */
 805         public boolean isPostBookmarked(String id) {
 806                 synchronized (bookmarkedPosts) {
 807                         return bookmarkedPosts.contains(id);
 808                 }
 809         }
 810
 811         /**
 812          * Returns all currently known bookmarked posts.
 813          *
 814          * @return All bookmarked posts
 815          */
 816         public Set<Post> getBookmarkedPosts() {
 817                 Set<Post> posts = new HashSet<Post>();
 818                 synchronized (bookmarkedPosts) {
 819                         for (String bookmarkedPostId : bookmarkedPosts) {
 820                                 Post post = getPost(bookmarkedPostId, false);
 821                                 if (post != null) {
 822                                         posts.add(post);
 823                                 }
 824                         }
 825                 }
 826                 return posts;
 827         }
 828
 829         /**
 830          * Returns the album with the given ID, creating a new album if no album
 831          * with the given ID can be found.
 832          *
 833          * @param albumId
 834          *            The ID of the album
 835          * @return The album with the given ID
 836          */
 837         public Album getAlbum(String albumId) {
 838                 return getAlbum(albumId, true);
 839         }
 840
 841         /**
 842          * Returns the album with the given ID, optionally creating a new album if
 843          * an album with the given ID can not be found.
 844          *
 845          * @param albumId
 846          *            The ID of the album
 847          * @param create
 848          *            {@code true} to create a new album if none exists for the
 849          *            given ID
 850          * @return The album with the given ID, or {@code null} if no album with the
 851          *         given ID exists and {@code create} is {@code false}
 852          */
 853         public Album getAlbum(String albumId, boolean create) {
 854                 synchronized (albums) {
 855                         Album album = albums.get(albumId);
 856                         if (create && (album == null)) {
 857                                 album = new Album(albumId);
 858                                 albums.put(albumId, album);
 859                         }
 860                         return album;
 861                 }
 862         }
 863
 864         /**
 865          * Returns the image with the given ID, creating it if necessary.
 866          *
 867          * @param imageId
 868          *            The ID of the image
 869          * @return The image with the given ID
 870          */
 871         public Image getImage(String imageId) {
 872                 return getImage(imageId, true);
 873         }
 874
 875         /**
 876          * Returns the image with the given ID, optionally creating it if it does
 877          * not exist.
 878          *
 879          * @param imageId
 880          *            The ID of the image
 881          * @param create
 882          *            {@code true} to create an image if none exists with the given
 883          *            ID
 884          * @return The image with the given ID, or {@code null} if none exists and
 885          *         none was created
 886          */
 887         public Image getImage(String imageId, boolean create) {
 888                 synchronized (images) {
 889                         Image image = images.get(imageId);
 890                         if (create && (image == null)) {
 891                                 image = new Image(imageId);
 892                                 images.put(imageId, image);
 893                         }
 894                         return image;
 895                 }
 896         }
 897
 898         /**
 899          * Returns the temporary image with the given ID.
 900          *
 901          * @param imageId
 902          *            The ID of the temporary image
 903          * @return The temporary image, or {@code null} if there is no temporary
 904          *         image with the given ID
 905          */
 906         public TemporaryImage getTemporaryImage(String imageId) {
 907                 synchronized (temporaryImages) {
 908                         return temporaryImages.get(imageId);
 909                 }
 910         }
 911
 912         //
 913         // ACTIONS
 914         //
 915
 916         /**
 917          * Locks the given Sone. A locked Sone will not be inserted by
 918          * {@link SoneInserter} until it is {@link #unlockSone(Sone) unlocked}
 919          * again.
 920          *
 921          * @param sone
 922          *            The sone to lock
 923          */
 924         public void lockSone(Sone sone) {
 925                 synchronized (lockedSones) {
 926                         if (lockedSones.add(sone)) {
 927                                 coreListenerManager.fireSoneLocked(sone);
 928                         }
 929                 }
 930         }
 931
 932         /**
 933          * Unlocks the given Sone.
 934          *
 935          * @see #lockSone(Sone)
 936          * @param sone
 937          *            The sone to unlock
 938          */
 939         public void unlockSone(Sone sone) {
 940                 synchronized (lockedSones) {
 941                         if (lockedSones.remove(sone)) {
 942                                 coreListenerManager.fireSoneUnlocked(sone);
 943                         }
 944                 }
 945         }
 946
 947         /**
 948          * Adds a local Sone from the given own identity.
 949          *
 950          * @param ownIdentity
 951          *            The own identity to create a Sone from
 952          * @return The added (or already existing) Sone
 953          */
 954         public Sone addLocalSone(OwnIdentity ownIdentity) {
 955                 if (ownIdentity == null) {
 956                         logger.log(Level.WARNING, "Given OwnIdentity is null!");
 957                         return null;
 958                 }
 959                 synchronized (localSones) {
 960                         final Sone sone;
 961                         try {
 962                                 sone = getLocalSone(ownIdentity.getId()).setIdentity(ownIdentity).setInsertUri(new FreenetURI(ownIdentity.getInsertUri())).setRequestUri(new FreenetURI(ownIdentity.getRequestUri()));
 963                         } catch (MalformedURLException mue1) {
 964                                 logger.log(Level.SEVERE, "Could not convert the Identity’s URIs to Freenet URIs: " + ownIdentity.getInsertUri() + ", " + ownIdentity.getRequestUri(), mue1);
 965                                 return null;
 966                         }
 967                         sone.setLatestEdition(Numbers.safeParseLong(ownIdentity.getProperty("Sone.LatestEdition"), (long) 0));
 968                         sone.setClient(new Client("Sone", SonePlugin.VERSION.toString()));
 969                         /* TODO - load posts ’n stuff */
 970                         localSones.put(ownIdentity.getId(), sone);
 971                         final SoneInserter soneInserter = new SoneInserter(this, freenetInterface, sone);
 972                         soneInserter.addSoneInsertListener(this);
 973                         soneInserters.put(sone, soneInserter);
 974                         setSoneStatus(sone, SoneStatus.idle);
 975                         loadSone(sone);
 976                         soneInserter.start();
 977                         return sone;
 978                 }
 979         }
 980
 981         /**
 982          * Creates a new Sone for the given own identity.
 983          *
 984          * @param ownIdentity
 985          *            The own identity to create a Sone for
 986          * @return The created Sone
 987          */
 988         public Sone createSone(OwnIdentity ownIdentity) {
 989                 try {
 990                         ownIdentity.addContext("Sone");
 991                 } catch (WebOfTrustException wote1) {
 992                         logger.log(Level.SEVERE, "Could not add “Sone” context to own identity: " + ownIdentity, wote1);
 993                         return null;
 994                 }
 995                 Sone sone = addLocalSone(ownIdentity);
 996                 sone.getOptions().addBooleanOption("AutoFollow", new DefaultOption<Boolean>(false));
 997                 sone.getOptions().addBooleanOption("EnableSoneInsertNotifications", new DefaultOption<Boolean>(false));
 998                 sone.getOptions().addBooleanOption("ShowNotification/NewSones", new DefaultOption<Boolean>(true));
 999                 sone.getOptions().addBooleanOption("ShowNotification/NewPosts", new DefaultOption<Boolean>(true));
1000                 sone.getOptions().addBooleanOption("ShowNotification/NewReplies", new DefaultOption<Boolean>(true));
1001                 followSone(sone, getSone("nwa8lHa271k2QvJ8aa0Ov7IHAV-DFOCFgmDt3X6BpCI"));
1002                 touchConfiguration();
1003                 return sone;
1004         }
1005
1006         /**
1007          * Adds the Sone of the given identity.
1008          *
1009          * @param identity
1010          *            The identity whose Sone to add
1011          * @return The added or already existing Sone
1012          */
1013         public Sone addRemoteSone(Identity identity) {
1014                 if (identity == null) {
1015                         logger.log(Level.WARNING, "Given Identity is null!");
1016                         return null;
1017                 }
1018                 synchronized (remoteSones) {
1019                         final Sone sone = getRemoteSone(identity.getId(), true).setIdentity(identity);
1020                         boolean newSone = sone.getRequestUri() == null;
1021                         sone.setRequestUri(getSoneUri(identity.getRequestUri()));
1022                         sone.setLatestEdition(Numbers.safeParseLong(identity.getProperty("Sone.LatestEdition"), (long) 0));
1023                         if (newSone) {
1024                                 synchronized (newSones) {
1025                                         newSone = !knownSones.contains(sone.getId());
1026                                         if (newSone) {
1027                                                 newSones.add(sone.getId());
1028                                         }
1029                                 }
1030                                 if (newSone) {
1031                                         coreListenerManager.fireNewSoneFound(sone);
1032                                         for (Sone localSone : getLocalSones()) {
1033                                                 if (localSone.getOptions().getBooleanOption("AutoFollow").get()) {
1034                                                         followSone(localSone, sone);
1035                                                 }
1036                                         }
1037                                 }
1038                         }
1039                         soneDownloader.addSone(sone);
1040                         setSoneStatus(sone, SoneStatus.unknown);
1041                         soneDownloaders.execute(new Runnable() {
1042
1043                                 @Override
1044                                 @SuppressWarnings("synthetic-access")
1045                                 public void run() {
1046                                         soneDownloader.fetchSone(sone, sone.getRequestUri());
1047                                 }
1048
1049                         });
1050                         return sone;
1051                 }
1052         }
1053
1054         /**
1055          * Lets the given local Sone follow the Sone with the given ID.
1056          *
1057          * @param sone
1058          *            The local Sone that should follow another Sone
1059          * @param soneId
1060          *            The ID of the Sone to follow
1061          */
1062         public void followSone(Sone sone, String soneId) {
1063                 Validation.begin().isNotNull("Sone", sone).isNotNull("Sone ID", soneId).check();
1064                 Sone followedSone = getSone(soneId);
1065                 if (followedSone == null) {
1066                         logger.log(Level.INFO, String.format("Ignored Sone with invalid ID: %s", soneId));
1067                         return;
1068                 }
1069                 followSone(sone, getSone(soneId));
1070         }
1071
1072         /**
1073          * Lets the given local Sone follow the other given Sone. If the given Sone
1074          * was not followed by any local Sone before, this will mark all elements of
1075          * the followed Sone as read that have been created before the current
1076          * moment.
1077          *
1078          * @param sone
1079          *            The local Sone that should follow the other Sone
1080          * @param followedSone
1081          *            The Sone that should be followed
1082          */
1083         public void followSone(Sone sone, Sone followedSone) {
1084                 Validation.begin().isNotNull("Sone", sone).isNotNull("Followed Sone", followedSone).check();
1085                 sone.addFriend(followedSone.getId());
1086                 synchronized (soneFollowingTimes) {
1087                         if (!soneFollowingTimes.containsKey(followedSone)) {
1088                                 long now = System.currentTimeMillis();
1089                                 soneFollowingTimes.put(followedSone, now);
1090                                 for (Post post : followedSone.getPosts()) {
1091                                         if (post.getTime() < now) {
1092                                                 markPostKnown(post);
1093                                         }
1094                                 }
1095                                 for (PostReply reply : followedSone.getReplies()) {
1096                                         if (reply.getTime() < now) {
1097                                                 markReplyKnown(reply);
1098                                         }
1099                                 }
1100                         }
1101                 }
1102                 touchConfiguration();
1103         }
1104
1105         /**
1106          * Lets the given local Sone unfollow the Sone with the given ID.
1107          *
1108          * @param sone
1109          *            The local Sone that should unfollow another Sone
1110          * @param soneId
1111          *            The ID of the Sone being unfollowed
1112          */
1113         public void unfollowSone(Sone sone, String soneId) {
1114                 Validation.begin().isNotNull("Sone", sone).isNotNull("Sone ID", soneId).check();
1115                 unfollowSone(sone, getSone(soneId, false));
1116         }
1117
1118         /**
1119          * Lets the given local Sone unfollow the other given Sone. If the given
1120          * local Sone is the last local Sone that followed the given Sone, its
1121          * following time will be removed.
1122          *
1123          * @param sone
1124          *            The local Sone that should unfollow another Sone
1125          * @param unfollowedSone
1126          *            The Sone being unfollowed
1127          */
1128         public void unfollowSone(Sone sone, Sone unfollowedSone) {
1129                 Validation.begin().isNotNull("Sone", sone).isNotNull("Unfollowed Sone", unfollowedSone).check();
1130                 sone.removeFriend(unfollowedSone.getId());
1131                 boolean unfollowedSoneStillFollowed = false;
1132                 for (Sone localSone : getLocalSones()) {
1133                         unfollowedSoneStillFollowed |= localSone.hasFriend(unfollowedSone.getId());
1134                 }
1135                 if (!unfollowedSoneStillFollowed) {
1136                         synchronized (soneFollowingTimes) {
1137                                 soneFollowingTimes.remove(unfollowedSone);
1138                         }
1139                 }
1140                 touchConfiguration();
1141         }
1142
1143         /**
1144          * Retrieves the trust relationship from the origin to the target. If the
1145          * trust relationship can not be retrieved, {@code null} is returned.
1146          *
1147          * @see Identity#getTrust(OwnIdentity)
1148          * @param origin
1149          *            The origin of the trust tree
1150          * @param target
1151          *            The target of the trust
1152          * @return The trust relationship
1153          */
1154         public Trust getTrust(Sone origin, Sone target) {
1155                 if (!isLocalSone(origin)) {
1156                         logger.log(Level.WARNING, "Tried to get trust from remote Sone: %s", origin);
1157                         return null;
1158                 }
1159                 return target.getIdentity().getTrust((OwnIdentity) origin.getIdentity());
1160         }
1161
1162         /**
1163          * Sets the trust value of the given origin Sone for the target Sone.
1164          *
1165          * @param origin
1166          *            The origin Sone
1167          * @param target
1168          *            The target Sone
1169          * @param trustValue
1170          *            The trust value (from {@code -100} to {@code 100})
1171          */
1172         public void setTrust(Sone origin, Sone target, int trustValue) {
1173                 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();
1174                 try {
1175                         ((OwnIdentity) origin.getIdentity()).setTrust(target.getIdentity(), trustValue, preferences.getTrustComment());
1176                 } catch (WebOfTrustException wote1) {
1177                         logger.log(Level.WARNING, "Could not set trust for Sone: " + target, wote1);
1178                 }
1179         }
1180
1181         /**
1182          * Removes any trust assignment for the given target Sone.
1183          *
1184          * @param origin
1185          *            The trust origin
1186          * @param target
1187          *            The trust target
1188          */
1189         public void removeTrust(Sone origin, Sone target) {
1190                 Validation.begin().isNotNull("Trust Origin", origin).isNotNull("Trust Target", target).check().isInstanceOf("Trust Origin Identity", origin.getIdentity(), OwnIdentity.class).check();
1191                 try {
1192                         ((OwnIdentity) origin.getIdentity()).removeTrust(target.getIdentity());
1193                 } catch (WebOfTrustException wote1) {
1194                         logger.log(Level.WARNING, "Could not remove trust for Sone: " + target, wote1);
1195                 }
1196         }
1197
1198         /**
1199          * Assigns the configured positive trust value for the given target.
1200          *
1201          * @param origin
1202          *            The trust origin
1203          * @param target
1204          *            The trust target
1205          */
1206         public void trustSone(Sone origin, Sone target) {
1207                 setTrust(origin, target, preferences.getPositiveTrust());
1208         }
1209
1210         /**
1211          * Assigns the configured negative trust value for the given target.
1212          *
1213          * @param origin
1214          *            The trust origin
1215          * @param target
1216          *            The trust target
1217          */
1218         public void distrustSone(Sone origin, Sone target) {
1219                 setTrust(origin, target, preferences.getNegativeTrust());
1220         }
1221
1222         /**
1223          * Removes the trust assignment for the given target.
1224          *
1225          * @param origin
1226          *            The trust origin
1227          * @param target
1228          *            The trust target
1229          */
1230         public void untrustSone(Sone origin, Sone target) {
1231                 removeTrust(origin, target);
1232         }
1233
1234         /**
1235          * Updates the stored Sone with the given Sone.
1236          *
1237          * @param sone
1238          *            The updated Sone
1239          */
1240         public void updateSone(Sone sone) {
1241                 updateSone(sone, false);
1242         }
1243
1244         /**
1245          * Updates the stored Sone with the given Sone. If {@code soneRescueMode} is
1246          * {@code true}, an older Sone than the current Sone can be given to restore
1247          * an old state.
1248          *
1249          * @param sone
1250          *            The Sone to update
1251          * @param soneRescueMode
1252          *            {@code true} if the stored Sone should be updated regardless
1253          *            of the age of the given Sone
1254          */
1255         public void updateSone(Sone sone, boolean soneRescueMode) {
1256                 if (hasSone(sone.getId())) {
1257                         Sone storedSone = getSone(sone.getId());
1258                         if (!soneRescueMode && !(sone.getTime() > storedSone.getTime())) {
1259                                 logger.log(Level.FINE, "Downloaded Sone %s is not newer than stored Sone %s.", new Object[] { sone, storedSone });
1260                                 return;
1261                         }
1262                         synchronized (posts) {
1263                                 if (!soneRescueMode) {
1264                                         for (Post post : storedSone.getPosts()) {
1265                                                 posts.remove(post.getId());
1266                                                 if (!sone.getPosts().contains(post)) {
1267                                                         coreListenerManager.firePostRemoved(post);
1268                                                 }
1269                                         }
1270                                 }
1271                                 List<Post> storedPosts = storedSone.getPosts();
1272                                 synchronized (newPosts) {
1273                                         for (Post post : sone.getPosts()) {
1274                                                 post.setSone(storedSone);
1275                                                 if (!storedPosts.contains(post)) {
1276                                                         if (post.getTime() < getSoneFollowingTime(sone)) {
1277                                                                 knownPosts.add(post.getId());
1278                                                         } else if (!knownPosts.contains(post.getId())) {
1279                                                                 newPosts.add(post.getId());
1280                                                                 coreListenerManager.fireNewPostFound(post);
1281                                                         }
1282                                                 }
1283                                                 posts.put(post.getId(), post);
1284                                         }
1285                                 }
1286                         }
1287                         synchronized (replies) {
1288                                 if (!soneRescueMode) {
1289                                         for (PostReply reply : storedSone.getReplies()) {
1290                                                 replies.remove(reply.getId());
1291                                                 if (!sone.getReplies().contains(reply)) {
1292                                                         coreListenerManager.fireReplyRemoved(reply);
1293                                                 }
1294                                         }
1295                                 }
1296                                 Set<PostReply> storedReplies = storedSone.getReplies();
1297                                 synchronized (newReplies) {
1298                                         for (PostReply reply : sone.getReplies()) {
1299                                                 reply.setSone(storedSone);
1300                                                 if (!storedReplies.contains(reply)) {
1301                                                         if (reply.getTime() < getSoneFollowingTime(sone)) {
1302                                                                 knownReplies.add(reply.getId());
1303                                                         } else if (!knownReplies.contains(reply.getId())) {
1304                                                                 newReplies.add(reply.getId());
1305                                                                 coreListenerManager.fireNewReplyFound(reply);
1306                                                         }
1307                                                 }
1308                                                 replies.put(reply.getId(), reply);
1309                                         }
1310                                 }
1311                         }
1312                         synchronized (albums) {
1313                                 synchronized (images) {
1314                                         for (Album album : storedSone.getAlbums()) {
1315                                                 albums.remove(album.getId());
1316                                                 for (Image image : album.getImages()) {
1317                                                         images.remove(image.getId());
1318                                                 }
1319                                         }
1320                                         for (Album album : sone.getAlbums()) {
1321                                                 albums.put(album.getId(), album);
1322                                                 for (Image image : album.getImages()) {
1323                                                         images.put(image.getId(), image);
1324                                                 }
1325                                         }
1326                                 }
1327                         }
1328                         synchronized (storedSone) {
1329                                 if (!soneRescueMode || (sone.getTime() > storedSone.getTime())) {
1330                                         storedSone.setTime(sone.getTime());
1331                                 }
1332                                 storedSone.setClient(sone.getClient());
1333                                 storedSone.setProfile(sone.getProfile());
1334                                 if (soneRescueMode) {
1335                                         for (Post post : sone.getPosts()) {
1336                                                 storedSone.addPost(post);
1337                                         }
1338                                         for (PostReply reply : sone.getReplies()) {
1339                                                 storedSone.addReply(reply);
1340                                         }
1341                                         for (String likedPostId : sone.getLikedPostIds()) {
1342                                                 storedSone.addLikedPostId(likedPostId);
1343                                         }
1344                                         for (String likedReplyId : sone.getLikedReplyIds()) {
1345                                                 storedSone.addLikedReplyId(likedReplyId);
1346                                         }
1347                                         for (Album album : sone.getAlbums()) {
1348                                                 storedSone.addAlbum(album);
1349                                         }
1350                                 } else {
1351                                         storedSone.setPosts(sone.getPosts());
1352                                         storedSone.setReplies(sone.getReplies());
1353                                         storedSone.setLikePostIds(sone.getLikedPostIds());
1354                                         storedSone.setLikeReplyIds(sone.getLikedReplyIds());
1355                                         storedSone.setAlbums(sone.getAlbums());
1356                                 }
1357                                 storedSone.setLatestEdition(sone.getLatestEdition());
1358                         }
1359                 }
1360         }
1361
1362         /**
1363          * Deletes the given Sone. This will remove the Sone from the
1364          * {@link #getLocalSone(String) local Sones}, stops its {@link SoneInserter}
1365          * and remove the context from its identity.
1366          *
1367          * @param sone
1368          *            The Sone to delete
1369          */
1370         public void deleteSone(Sone sone) {
1371                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
1372                         logger.log(Level.WARNING, "Tried to delete Sone of non-own identity: %s", sone);
1373                         return;
1374                 }
1375                 synchronized (localSones) {
1376                         if (!localSones.containsKey(sone.getId())) {
1377                                 logger.log(Level.WARNING, "Tried to delete non-local Sone: %s", sone);
1378                                 return;
1379                         }
1380                         localSones.remove(sone.getId());
1381                         SoneInserter soneInserter = soneInserters.remove(sone);
1382                         soneInserter.removeSoneInsertListener(this);
1383                         soneInserter.stop();
1384                 }
1385                 try {
1386                         ((OwnIdentity) sone.getIdentity()).removeContext("Sone");
1387                         ((OwnIdentity) sone.getIdentity()).removeProperty("Sone.LatestEdition");
1388                 } catch (WebOfTrustException wote1) {
1389                         logger.log(Level.WARNING, "Could not remove context and properties from Sone: " + sone, wote1);
1390                 }
1391                 try {
1392                         configuration.getLongValue("Sone/" + sone.getId() + "/Time").setValue(null);
1393                 } catch (ConfigurationException ce1) {
1394                         logger.log(Level.WARNING, "Could not remove Sone from configuration!", ce1);
1395                 }
1396         }
1397
1398         /**
1399          * Marks the given Sone as known. If the Sone was {@link #isNewPost(String)
1400          * new} before, a {@link CoreListener#markSoneKnown(Sone)} event is fired.
1401          *
1402          * @param sone
1403          *            The Sone to mark as known
1404          */
1405         public void markSoneKnown(Sone sone) {
1406                 synchronized (newSones) {
1407                         if (newSones.remove(sone.getId())) {
1408                                 knownSones.add(sone.getId());
1409                                 coreListenerManager.fireMarkSoneKnown(sone);
1410                                 touchConfiguration();
1411                         }
1412                 }
1413         }
1414
1415         /**
1416          * Loads and updates the given Sone from the configuration. If any error is
1417          * encountered, loading is aborted and the given Sone is not changed.
1418          *
1419          * @param sone
1420          *            The Sone to load and update
1421          */
1422         public void loadSone(Sone sone) {
1423                 if (!isLocalSone(sone)) {
1424                         logger.log(Level.FINE, "Tried to load non-local Sone: %s", sone);
1425                         return;
1426                 }
1427
1428                 /* initialize options. */
1429                 sone.getOptions().addBooleanOption("AutoFollow", new DefaultOption<Boolean>(false));
1430                 sone.getOptions().addBooleanOption("EnableSoneInsertNotifications", new DefaultOption<Boolean>(false));
1431                 sone.getOptions().addBooleanOption("ShowNotification/NewSones", new DefaultOption<Boolean>(true));
1432                 sone.getOptions().addBooleanOption("ShowNotification/NewPosts", new DefaultOption<Boolean>(true));
1433                 sone.getOptions().addBooleanOption("ShowNotification/NewReplies", new DefaultOption<Boolean>(true));
1434
1435                 /* load Sone. */
1436                 String sonePrefix = "Sone/" + sone.getId();
1437                 Long soneTime = configuration.getLongValue(sonePrefix + "/Time").getValue(null);
1438                 if (soneTime == null) {
1439                         logger.log(Level.INFO, "Could not load Sone because no Sone has been saved.");
1440                         return;
1441                 }
1442                 String lastInsertFingerprint = configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").getValue("");
1443
1444                 /* load profile. */
1445                 Profile profile = new Profile();
1446                 profile.setFirstName(configuration.getStringValue(sonePrefix + "/Profile/FirstName").getValue(null));
1447                 profile.setMiddleName(configuration.getStringValue(sonePrefix + "/Profile/MiddleName").getValue(null));
1448                 profile.setLastName(configuration.getStringValue(sonePrefix + "/Profile/LastName").getValue(null));
1449                 profile.setBirthDay(configuration.getIntValue(sonePrefix + "/Profile/BirthDay").getValue(null));
1450                 profile.setBirthMonth(configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").getValue(null));
1451                 profile.setBirthYear(configuration.getIntValue(sonePrefix + "/Profile/BirthYear").getValue(null));
1452
1453                 /* load profile fields. */
1454                 while (true) {
1455                         String fieldPrefix = sonePrefix + "/Profile/Fields/" + profile.getFields().size();
1456                         String fieldName = configuration.getStringValue(fieldPrefix + "/Name").getValue(null);
1457                         if (fieldName == null) {
1458                                 break;
1459                         }
1460                         String fieldValue = configuration.getStringValue(fieldPrefix + "/Value").getValue("");
1461                         profile.addField(fieldName).setValue(fieldValue);
1462                 }
1463
1464                 /* load posts. */
1465                 Set<Post> posts = new HashSet<Post>();
1466                 while (true) {
1467                         String postPrefix = sonePrefix + "/Posts/" + posts.size();
1468                         String postId = configuration.getStringValue(postPrefix + "/ID").getValue(null);
1469                         if (postId == null) {
1470                                 break;
1471                         }
1472                         String postRecipientId = configuration.getStringValue(postPrefix + "/Recipient").getValue(null);
1473                         long postTime = configuration.getLongValue(postPrefix + "/Time").getValue((long) 0);
1474                         String postText = configuration.getStringValue(postPrefix + "/Text").getValue(null);
1475                         if ((postTime == 0) || (postText == null)) {
1476                                 logger.log(Level.WARNING, "Invalid post found, aborting load!");
1477                                 return;
1478                         }
1479                         Post post = getPost(postId).setSone(sone).setTime(postTime).setText(postText);
1480                         if ((postRecipientId != null) && (postRecipientId.length() == 43)) {
1481                                 post.setRecipient(getSone(postRecipientId));
1482                         }
1483                         posts.add(post);
1484                 }
1485
1486                 /* load replies. */
1487                 Set<PostReply> replies = new HashSet<PostReply>();
1488                 while (true) {
1489                         String replyPrefix = sonePrefix + "/Replies/" + replies.size();
1490                         String replyId = configuration.getStringValue(replyPrefix + "/ID").getValue(null);
1491                         if (replyId == null) {
1492                                 break;
1493                         }
1494                         String postId = configuration.getStringValue(replyPrefix + "/Post/ID").getValue(null);
1495                         long replyTime = configuration.getLongValue(replyPrefix + "/Time").getValue((long) 0);
1496                         String replyText = configuration.getStringValue(replyPrefix + "/Text").getValue(null);
1497                         if ((postId == null) || (replyTime == 0) || (replyText == null)) {
1498                                 logger.log(Level.WARNING, "Invalid reply found, aborting load!");
1499                                 return;
1500                         }
1501                         replies.add(getReply(replyId).setSone(sone).setPost(getPost(postId)).setTime(replyTime).setText(replyText));
1502                 }
1503
1504                 /* load post likes. */
1505                 Set<String> likedPostIds = new HashSet<String>();
1506                 while (true) {
1507                         String likedPostId = configuration.getStringValue(sonePrefix + "/Likes/Post/" + likedPostIds.size() + "/ID").getValue(null);
1508                         if (likedPostId == null) {
1509                                 break;
1510                         }
1511                         likedPostIds.add(likedPostId);
1512                 }
1513
1514                 /* load reply likes. */
1515                 Set<String> likedReplyIds = new HashSet<String>();
1516                 while (true) {
1517                         String likedReplyId = configuration.getStringValue(sonePrefix + "/Likes/Reply/" + likedReplyIds.size() + "/ID").getValue(null);
1518                         if (likedReplyId == null) {
1519                                 break;
1520                         }
1521                         likedReplyIds.add(likedReplyId);
1522                 }
1523
1524                 /* load friends. */
1525                 Set<String> friends = new HashSet<String>();
1526                 while (true) {
1527                         String friendId = configuration.getStringValue(sonePrefix + "/Friends/" + friends.size() + "/ID").getValue(null);
1528                         if (friendId == null) {
1529                                 break;
1530                         }
1531                         friends.add(friendId);
1532                 }
1533
1534                 /* load albums. */
1535                 List<Album> topLevelAlbums = new ArrayList<Album>();
1536                 int albumCounter = 0;
1537                 while (true) {
1538                         String albumPrefix = sonePrefix + "/Albums/" + albumCounter++;
1539                         String albumId = configuration.getStringValue(albumPrefix + "/ID").getValue(null);
1540                         if (albumId == null) {
1541                                 break;
1542                         }
1543                         String albumTitle = configuration.getStringValue(albumPrefix + "/Title").getValue(null);
1544                         String albumDescription = configuration.getStringValue(albumPrefix + "/Description").getValue(null);
1545                         String albumParentId = configuration.getStringValue(albumPrefix + "/Parent").getValue(null);
1546                         String albumImageId = configuration.getStringValue(albumPrefix + "/AlbumImage").getValue(null);
1547                         if ((albumTitle == null) || (albumDescription == null)) {
1548                                 logger.log(Level.WARNING, "Invalid album found, aborting load!");
1549                                 return;
1550                         }
1551                         Album album = getAlbum(albumId).setSone(sone).setTitle(albumTitle).setDescription(albumDescription).setAlbumImage(albumImageId);
1552                         if (albumParentId != null) {
1553                                 Album parentAlbum = getAlbum(albumParentId, false);
1554                                 if (parentAlbum == null) {
1555                                         logger.log(Level.WARNING, "Invalid parent album ID: " + albumParentId);
1556                                         return;
1557                                 }
1558                                 parentAlbum.addAlbum(album);
1559                         } else {
1560                                 topLevelAlbums.add(album);
1561                         }
1562                 }
1563
1564                 /* load images. */
1565                 int imageCounter = 0;
1566                 while (true) {
1567                         String imagePrefix = sonePrefix + "/Images/" + imageCounter++;
1568                         String imageId = configuration.getStringValue(imagePrefix + "/ID").getValue(null);
1569                         if (imageId == null) {
1570                                 break;
1571                         }
1572                         String albumId = configuration.getStringValue(imagePrefix + "/Album").getValue(null);
1573                         String key = configuration.getStringValue(imagePrefix + "/Key").getValue(null);
1574                         String title = configuration.getStringValue(imagePrefix + "/Title").getValue(null);
1575                         String description = configuration.getStringValue(imagePrefix + "/Description").getValue(null);
1576                         Long creationTime = configuration.getLongValue(imagePrefix + "/CreationTime").getValue(null);
1577                         Integer width = configuration.getIntValue(imagePrefix + "/Width").getValue(null);
1578                         Integer height = configuration.getIntValue(imagePrefix + "/Height").getValue(null);
1579                         if ((albumId == null) || (key == null) || (title == null) || (description == null) || (creationTime == null) || (width == null) || (height == null)) {
1580                                 logger.log(Level.WARNING, "Invalid image found, aborting load!");
1581                                 return;
1582                         }
1583                         Album album = getAlbum(albumId, false);
1584                         if (album == null) {
1585                                 logger.log(Level.WARNING, "Invalid album image encountered, aborting load!");
1586                                 return;
1587                         }
1588                         Image image = getImage(imageId).setSone(sone).setCreationTime(creationTime).setKey(key);
1589                         image.setTitle(title).setDescription(description).setWidth(width).setHeight(height);
1590                         album.addImage(image);
1591                 }
1592
1593                 /* load options. */
1594                 sone.getOptions().getBooleanOption("AutoFollow").set(configuration.getBooleanValue(sonePrefix + "/Options/AutoFollow").getValue(null));
1595                 sone.getOptions().getBooleanOption("EnableSoneInsertNotifications").set(configuration.getBooleanValue(sonePrefix + "/Options/EnableSoneInsertNotifications").getValue(null));
1596                 sone.getOptions().getBooleanOption("ShowNotification/NewSones").set(configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewSones").getValue(null));
1597                 sone.getOptions().getBooleanOption("ShowNotification/NewPosts").set(configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewPosts").getValue(null));
1598                 sone.getOptions().getBooleanOption("ShowNotification/NewReplies").set(configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewReplies").getValue(null));
1599
1600                 /* if we’re still here, Sone was loaded successfully. */
1601                 synchronized (sone) {
1602                         sone.setTime(soneTime);
1603                         sone.setProfile(profile);
1604                         sone.setPosts(posts);
1605                         sone.setReplies(replies);
1606                         sone.setLikePostIds(likedPostIds);
1607                         sone.setLikeReplyIds(likedReplyIds);
1608                         for (String friendId : friends) {
1609                                 followSone(sone, friendId);
1610                         }
1611                         sone.setAlbums(topLevelAlbums);
1612                         soneInserters.get(sone).setLastInsertFingerprint(lastInsertFingerprint);
1613                 }
1614                 synchronized (newSones) {
1615                         for (String friend : friends) {
1616                                 knownSones.add(friend);
1617                         }
1618                 }
1619                 synchronized (newPosts) {
1620                         for (Post post : posts) {
1621                                 knownPosts.add(post.getId());
1622                         }
1623                 }
1624                 synchronized (newReplies) {
1625                         for (PostReply reply : replies) {
1626                                 knownReplies.add(reply.getId());
1627                         }
1628                 }
1629         }
1630
1631         /**
1632          * Creates a new post.
1633          *
1634          * @param sone
1635          *            The Sone that creates the post
1636          * @param text
1637          *            The text of the post
1638          * @return The created post
1639          */
1640         public Post createPost(Sone sone, String text) {
1641                 return createPost(sone, System.currentTimeMillis(), text);
1642         }
1643
1644         /**
1645          * Creates a new post.
1646          *
1647          * @param sone
1648          *            The Sone that creates the post
1649          * @param time
1650          *            The time of the post
1651          * @param text
1652          *            The text of the post
1653          * @return The created post
1654          */
1655         public Post createPost(Sone sone, long time, String text) {
1656                 return createPost(sone, null, time, text);
1657         }
1658
1659         /**
1660          * Creates a new post.
1661          *
1662          * @param sone
1663          *            The Sone that creates the post
1664          * @param recipient
1665          *            The recipient Sone, or {@code null} if this post does not have
1666          *            a recipient
1667          * @param text
1668          *            The text of the post
1669          * @return The created post
1670          */
1671         public Post createPost(Sone sone, Sone recipient, String text) {
1672                 return createPost(sone, recipient, System.currentTimeMillis(), text);
1673         }
1674
1675         /**
1676          * Creates a new post.
1677          *
1678          * @param sone
1679          *            The Sone that creates the post
1680          * @param recipient
1681          *            The recipient Sone, or {@code null} if this post does not have
1682          *            a recipient
1683          * @param time
1684          *            The time of the post
1685          * @param text
1686          *            The text of the post
1687          * @return The created post
1688          */
1689         public Post createPost(Sone sone, Sone recipient, long time, String text) {
1690                 if (!isLocalSone(sone)) {
1691                         logger.log(Level.FINE, "Tried to create post for non-local Sone: %s", sone);
1692                         return null;
1693                 }
1694                 final Post post = new Post(sone, time, text);
1695                 if (recipient != null) {
1696                         post.setRecipient(recipient);
1697                 }
1698                 synchronized (posts) {
1699                         posts.put(post.getId(), post);
1700                 }
1701                 synchronized (newPosts) {
1702                         newPosts.add(post.getId());
1703                         coreListenerManager.fireNewPostFound(post);
1704                 }
1705                 sone.addPost(post);
1706                 touchConfiguration();
1707                 localElementTicker.registerEvent(System.currentTimeMillis() + 10 * 1000, new Runnable() {
1708
1709                         /**
1710                          * {@inheritDoc}
1711                          */
1712                         @Override
1713                         public void run() {
1714                                 markPostKnown(post);
1715                         }
1716                 }, "Mark " + post + " read.");
1717                 return post;
1718         }
1719
1720         /**
1721          * Deletes the given post.
1722          *
1723          * @param post
1724          *            The post to delete
1725          */
1726         public void deletePost(Post post) {
1727                 if (!isLocalSone(post.getSone())) {
1728                         logger.log(Level.WARNING, "Tried to delete post of non-local Sone: %s", post.getSone());
1729                         return;
1730                 }
1731                 post.getSone().removePost(post);
1732                 synchronized (posts) {
1733                         posts.remove(post.getId());
1734                 }
1735                 coreListenerManager.firePostRemoved(post);
1736                 synchronized (newPosts) {
1737                         markPostKnown(post);
1738                         knownPosts.remove(post.getId());
1739                 }
1740                 touchConfiguration();
1741         }
1742
1743         /**
1744          * Marks the given post as known, if it is currently a new post (according
1745          * to {@link #isNewPost(String)}).
1746          *
1747          * @param post
1748          *            The post to mark as known
1749          */
1750         public void markPostKnown(Post post) {
1751                 synchronized (newPosts) {
1752                         if (newPosts.remove(post.getId())) {
1753                                 knownPosts.add(post.getId());
1754                                 coreListenerManager.fireMarkPostKnown(post);
1755                                 touchConfiguration();
1756                         }
1757                 }
1758         }
1759
1760         /**
1761          * Bookmarks the given post.
1762          *
1763          * @param post
1764          *            The post to bookmark
1765          */
1766         public void bookmark(Post post) {
1767                 bookmarkPost(post.getId());
1768         }
1769
1770         /**
1771          * Bookmarks the post with the given ID.
1772          *
1773          * @param id
1774          *            The ID of the post to bookmark
1775          */
1776         public void bookmarkPost(String id) {
1777                 synchronized (bookmarkedPosts) {
1778                         bookmarkedPosts.add(id);
1779                 }
1780         }
1781
1782         /**
1783          * Removes the given post from the bookmarks.
1784          *
1785          * @param post
1786          *            The post to unbookmark
1787          */
1788         public void unbookmark(Post post) {
1789                 unbookmarkPost(post.getId());
1790         }
1791
1792         /**
1793          * Removes the post with the given ID from the bookmarks.
1794          *
1795          * @param id
1796          *            The ID of the post to unbookmark
1797          */
1798         public void unbookmarkPost(String id) {
1799                 synchronized (bookmarkedPosts) {
1800                         bookmarkedPosts.remove(id);
1801                 }
1802         }
1803
1804         /**
1805          * Creates a new reply.
1806          *
1807          * @param sone
1808          *            The Sone that creates the reply
1809          * @param post
1810          *            The post that this reply refers to
1811          * @param text
1812          *            The text of the reply
1813          * @return The created reply
1814          */
1815         public PostReply createReply(Sone sone, Post post, String text) {
1816                 return createReply(sone, post, System.currentTimeMillis(), text);
1817         }
1818
1819         /**
1820          * Creates a new reply.
1821          *
1822          * @param sone
1823          *            The Sone that creates the reply
1824          * @param post
1825          *            The post that this reply refers to
1826          * @param time
1827          *            The time of the reply
1828          * @param text
1829          *            The text of the reply
1830          * @return The created reply
1831          */
1832         public PostReply createReply(Sone sone, Post post, long time, String text) {
1833                 if (!isLocalSone(sone)) {
1834                         logger.log(Level.FINE, "Tried to create reply for non-local Sone: %s", sone);
1835                         return null;
1836                 }
1837                 final PostReply reply = new PostReply(sone, post, System.currentTimeMillis(), text);
1838                 synchronized (replies) {
1839                         replies.put(reply.getId(), reply);
1840                 }
1841                 synchronized (newReplies) {
1842                         newReplies.add(reply.getId());
1843                         coreListenerManager.fireNewReplyFound(reply);
1844                 }
1845                 sone.addReply(reply);
1846                 touchConfiguration();
1847                 localElementTicker.registerEvent(System.currentTimeMillis() + 10 * 1000, new Runnable() {
1848
1849                         /**
1850                          * {@inheritDoc}
1851                          */
1852                         @Override
1853                         public void run() {
1854                                 markReplyKnown(reply);
1855                         }
1856                 }, "Mark " + reply + " read.");
1857                 return reply;
1858         }
1859
1860         /**
1861          * Deletes the given reply.
1862          *
1863          * @param reply
1864          *            The reply to delete
1865          */
1866         public void deleteReply(PostReply reply) {
1867                 Sone sone = reply.getSone();
1868                 if (!isLocalSone(sone)) {
1869                         logger.log(Level.FINE, "Tried to delete non-local reply: %s", reply);
1870                         return;
1871                 }
1872                 synchronized (replies) {
1873                         replies.remove(reply.getId());
1874                 }
1875                 synchronized (newReplies) {
1876                         markReplyKnown(reply);
1877                         knownReplies.remove(reply.getId());
1878                 }
1879                 sone.removeReply(reply);
1880                 touchConfiguration();
1881         }
1882
1883         /**
1884          * Marks the given reply as known, if it is currently a new reply (according
1885          * to {@link #isNewReply(String)}).
1886          *
1887          * @param reply
1888          *            The reply to mark as known
1889          */
1890         public void markReplyKnown(PostReply reply) {
1891                 synchronized (newReplies) {
1892                         if (newReplies.remove(reply.getId())) {
1893                                 knownReplies.add(reply.getId());
1894                                 coreListenerManager.fireMarkReplyKnown(reply);
1895                                 touchConfiguration();
1896                         }
1897                 }
1898         }
1899
1900         /**
1901          * Creates a new top-level album for the given Sone.
1902          *
1903          * @param sone
1904          *            The Sone to create the album for
1905          * @return The new album
1906          */
1907         public Album createAlbum(Sone sone) {
1908                 return createAlbum(sone, null);
1909         }
1910
1911         /**
1912          * Creates a new album for the given Sone.
1913          *
1914          * @param sone
1915          *            The Sone to create the album for
1916          * @param parent
1917          *            The parent of the album (may be {@code null} to create a
1918          *            top-level album)
1919          * @return The new album
1920          */
1921         public Album createAlbum(Sone sone, Album parent) {
1922                 Album album = new Album();
1923                 synchronized (albums) {
1924                         albums.put(album.getId(), album);
1925                 }
1926                 album.setSone(sone);
1927                 if (parent != null) {
1928                         parent.addAlbum(album);
1929                 } else {
1930                         sone.addAlbum(album);
1931                 }
1932                 return album;
1933         }
1934
1935         /**
1936          * Deletes the given album. The owner of the album has to be a local Sone,
1937          * and the album has to be {@link Album#isEmpty() empty} to be deleted.
1938          *
1939          * @param album
1940          *            The album to remove
1941          */
1942         public void deleteAlbum(Album album) {
1943                 Validation.begin().isNotNull("Album", album).check().is("Local Sone", isLocalSone(album.getSone())).check();
1944                 if (!album.isEmpty()) {
1945                         return;
1946                 }
1947                 if (album.getParent() == null) {
1948                         album.getSone().removeAlbum(album);
1949                 } else {
1950                         album.getParent().removeAlbum(album);
1951                 }
1952                 synchronized (albums) {
1953                         albums.remove(album.getId());
1954                 }
1955                 saveSone(album.getSone());
1956         }
1957
1958         /**
1959          * Creates a new image.
1960          *
1961          * @param sone
1962          *            The Sone creating the image
1963          * @param album
1964          *            The album the image will be inserted into
1965          * @param temporaryImage
1966          *            The temporary image to create the image from
1967          * @return The newly created image
1968          */
1969         public Image createImage(Sone sone, Album album, TemporaryImage temporaryImage) {
1970                 Validation.begin().isNotNull("Sone", sone).isNotNull("Album", album).isNotNull("Temporary Image", temporaryImage).check().is("Local Sone", isLocalSone(sone)).check().isEqual("Owner and Album Owner", sone, album.getSone()).check();
1971                 Image image = new Image(temporaryImage.getId()).setSone(sone).setCreationTime(System.currentTimeMillis());
1972                 album.addImage(image);
1973                 synchronized (images) {
1974                         images.put(image.getId(), image);
1975                 }
1976                 imageInserter.insertImage(temporaryImage, image);
1977                 return image;
1978         }
1979
1980         /**
1981          * Deletes the given image. This method will also delete a matching
1982          * temporary image.
1983          *
1984          * @see #deleteTemporaryImage(TemporaryImage)
1985          * @param image
1986          *            The image to delete
1987          */
1988         public void deleteImage(Image image) {
1989                 Validation.begin().isNotNull("Image", image).check().is("Local Sone", isLocalSone(image.getSone())).check();
1990                 deleteTemporaryImage(image.getId());
1991                 image.getAlbum().removeImage(image);
1992                 synchronized (images) {
1993                         images.remove(image.getId());
1994                 }
1995                 saveSone(image.getSone());
1996         }
1997
1998         /**
1999          * Creates a new temporary image.
2000          *
2001          * @param mimeType
2002          *            The MIME type of the temporary image
2003          * @param imageData
2004          *            The encoded data of the image
2005          * @return The temporary image
2006          */
2007         public TemporaryImage createTemporaryImage(String mimeType, byte[] imageData) {
2008                 TemporaryImage temporaryImage = new TemporaryImage();
2009                 temporaryImage.setMimeType(mimeType).setImageData(imageData);
2010                 synchronized (temporaryImages) {
2011                         temporaryImages.put(temporaryImage.getId(), temporaryImage);
2012                 }
2013                 return temporaryImage;
2014         }
2015
2016         /**
2017          * Deletes the given temporary image.
2018          *
2019          * @param temporaryImage
2020          *            The temporary image to delete
2021          */
2022         public void deleteTemporaryImage(TemporaryImage temporaryImage) {
2023                 Validation.begin().isNotNull("Temporary Image", temporaryImage).check();
2024                 deleteTemporaryImage(temporaryImage.getId());
2025         }
2026
2027         /**
2028          * Deletes the temporary image with the given ID.
2029          *
2030          * @param imageId
2031          *            The ID of the temporary image to delete
2032          */
2033         public void deleteTemporaryImage(String imageId) {
2034                 Validation.begin().isNotNull("Temporary Image ID", imageId).check();
2035                 synchronized (temporaryImages) {
2036                         temporaryImages.remove(imageId);
2037                 }
2038                 Image image = getImage(imageId, false);
2039                 if (image != null) {
2040                         imageInserter.cancelImageInsert(image);
2041                 }
2042         }
2043
2044         /**
2045          * Notifies the core that the configuration, either of the core or of a
2046          * single local Sone, has changed, and that the configuration should be
2047          * saved.
2048          */
2049         public void touchConfiguration() {
2050                 lastConfigurationUpdate = System.currentTimeMillis();
2051         }
2052
2053         //
2054         // SERVICE METHODS
2055         //
2056
2057         /**
2058          * Starts the core.
2059          */
2060         @Override
2061         public void serviceStart() {
2062                 loadConfiguration();
2063                 updateChecker.addUpdateListener(this);
2064                 updateChecker.start();
2065         }
2066
2067         /**
2068          * {@inheritDoc}
2069          */
2070         @Override
2071         public void serviceRun() {
2072                 long lastSaved = System.currentTimeMillis();
2073                 while (!shouldStop()) {
2074                         sleep(1000);
2075                         long now = System.currentTimeMillis();
2076                         if (shouldStop() || ((lastConfigurationUpdate > lastSaved) && ((now - lastConfigurationUpdate) > 5000))) {
2077                                 for (Sone localSone : getLocalSones()) {
2078                                         saveSone(localSone);
2079                                 }
2080                                 saveConfiguration();
2081                                 lastSaved = now;
2082                         }
2083                 }
2084         }
2085
2086         /**
2087          * Stops the core.
2088          */
2089         @Override
2090         public void serviceStop() {
2091                 synchronized (localSones) {
2092                         for (SoneInserter soneInserter : soneInserters.values()) {
2093                                 soneInserter.removeSoneInsertListener(this);
2094                                 soneInserter.stop();
2095                         }
2096                 }
2097                 updateChecker.stop();
2098                 updateChecker.removeUpdateListener(this);
2099                 soneDownloader.stop();
2100         }
2101
2102         //
2103         // PRIVATE METHODS
2104         //
2105
2106         /**
2107          * Saves the given Sone. This will persist all local settings for the given
2108          * Sone, such as the friends list and similar, private options.
2109          *
2110          * @param sone
2111          *            The Sone to save
2112          */
2113         private synchronized void saveSone(Sone sone) {
2114                 if (!isLocalSone(sone)) {
2115                         logger.log(Level.FINE, "Tried to save non-local Sone: %s", sone);
2116                         return;
2117                 }
2118                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
2119                         logger.log(Level.WARNING, "Local Sone without OwnIdentity found, refusing to save: %s", sone);
2120                         return;
2121                 }
2122
2123                 logger.log(Level.INFO, "Saving Sone: %s", sone);
2124                 try {
2125                         /* save Sone into configuration. */
2126                         String sonePrefix = "Sone/" + sone.getId();
2127                         configuration.getLongValue(sonePrefix + "/Time").setValue(sone.getTime());
2128                         configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").setValue(soneInserters.get(sone).getLastInsertFingerprint());
2129
2130                         /* save profile. */
2131                         Profile profile = sone.getProfile();
2132                         configuration.getStringValue(sonePrefix + "/Profile/FirstName").setValue(profile.getFirstName());
2133                         configuration.getStringValue(sonePrefix + "/Profile/MiddleName").setValue(profile.getMiddleName());
2134                         configuration.getStringValue(sonePrefix + "/Profile/LastName").setValue(profile.getLastName());
2135                         configuration.getIntValue(sonePrefix + "/Profile/BirthDay").setValue(profile.getBirthDay());
2136                         configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").setValue(profile.getBirthMonth());
2137                         configuration.getIntValue(sonePrefix + "/Profile/BirthYear").setValue(profile.getBirthYear());
2138
2139                         /* save profile fields. */
2140                         int fieldCounter = 0;
2141                         for (Field profileField : profile.getFields()) {
2142                                 String fieldPrefix = sonePrefix + "/Profile/Fields/" + fieldCounter++;
2143                                 configuration.getStringValue(fieldPrefix + "/Name").setValue(profileField.getName());
2144                                 configuration.getStringValue(fieldPrefix + "/Value").setValue(profileField.getValue());
2145                         }
2146                         configuration.getStringValue(sonePrefix + "/Profile/Fields/" + fieldCounter + "/Name").setValue(null);
2147
2148                         /* save posts. */
2149                         int postCounter = 0;
2150                         for (Post post : sone.getPosts()) {
2151                                 String postPrefix = sonePrefix + "/Posts/" + postCounter++;
2152                                 configuration.getStringValue(postPrefix + "/ID").setValue(post.getId());
2153                                 configuration.getStringValue(postPrefix + "/Recipient").setValue((post.getRecipient() != null) ? post.getRecipient().getId() : null);
2154                                 configuration.getLongValue(postPrefix + "/Time").setValue(post.getTime());
2155                                 configuration.getStringValue(postPrefix + "/Text").setValue(post.getText());
2156                         }
2157                         configuration.getStringValue(sonePrefix + "/Posts/" + postCounter + "/ID").setValue(null);
2158
2159                         /* save replies. */
2160                         int replyCounter = 0;
2161                         for (PostReply reply : sone.getReplies()) {
2162                                 String replyPrefix = sonePrefix + "/Replies/" + replyCounter++;
2163                                 configuration.getStringValue(replyPrefix + "/ID").setValue(reply.getId());
2164                                 configuration.getStringValue(replyPrefix + "/Post/ID").setValue(reply.getPost().getId());
2165                                 configuration.getLongValue(replyPrefix + "/Time").setValue(reply.getTime());
2166                                 configuration.getStringValue(replyPrefix + "/Text").setValue(reply.getText());
2167                         }
2168                         configuration.getStringValue(sonePrefix + "/Replies/" + replyCounter + "/ID").setValue(null);
2169
2170                         /* save post likes. */
2171                         int postLikeCounter = 0;
2172                         for (String postId : sone.getLikedPostIds()) {
2173                                 configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter++ + "/ID").setValue(postId);
2174                         }
2175                         configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter + "/ID").setValue(null);
2176
2177                         /* save reply likes. */
2178                         int replyLikeCounter = 0;
2179                         for (String replyId : sone.getLikedReplyIds()) {
2180                                 configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter++ + "/ID").setValue(replyId);
2181                         }
2182                         configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter + "/ID").setValue(null);
2183
2184                         /* save friends. */
2185                         int friendCounter = 0;
2186                         for (String friendId : sone.getFriends()) {
2187                                 configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter++ + "/ID").setValue(friendId);
2188                         }
2189                         configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter + "/ID").setValue(null);
2190
2191                         /* save albums. first, collect in a flat structure, top-level first. */
2192                         List<Album> albums = sone.getAllAlbums();
2193
2194                         int albumCounter = 0;
2195                         for (Album album : albums) {
2196                                 String albumPrefix = sonePrefix + "/Albums/" + albumCounter++;
2197                                 configuration.getStringValue(albumPrefix + "/ID").setValue(album.getId());
2198                                 configuration.getStringValue(albumPrefix + "/Title").setValue(album.getTitle());
2199                                 configuration.getStringValue(albumPrefix + "/Description").setValue(album.getDescription());
2200                                 configuration.getStringValue(albumPrefix + "/Parent").setValue(album.getParent() == null ? null : album.getParent().getId());
2201                                 configuration.getStringValue(albumPrefix + "/AlbumImage").setValue(album.getAlbumImage() == null ? null : album.getAlbumImage().getId());
2202                         }
2203                         configuration.getStringValue(sonePrefix + "/Albums/" + albumCounter + "/ID").setValue(null);
2204
2205                         /* save images. */
2206                         int imageCounter = 0;
2207                         for (Album album : albums) {
2208                                 for (Image image : album.getImages()) {
2209                                         if (!image.isInserted()) {
2210                                                 continue;
2211                                         }
2212                                         String imagePrefix = sonePrefix + "/Images/" + imageCounter++;
2213                                         configuration.getStringValue(imagePrefix + "/ID").setValue(image.getId());
2214                                         configuration.getStringValue(imagePrefix + "/Album").setValue(album.getId());
2215                                         configuration.getStringValue(imagePrefix + "/Key").setValue(image.getKey());
2216                                         configuration.getStringValue(imagePrefix + "/Title").setValue(image.getTitle());
2217                                         configuration.getStringValue(imagePrefix + "/Description").setValue(image.getDescription());
2218                                         configuration.getLongValue(imagePrefix + "/CreationTime").setValue(image.getCreationTime());
2219                                         configuration.getIntValue(imagePrefix + "/Width").setValue(image.getWidth());
2220                                         configuration.getIntValue(imagePrefix + "/Height").setValue(image.getHeight());
2221                                 }
2222                         }
2223                         configuration.getStringValue(sonePrefix + "/Images/" + imageCounter + "/ID").setValue(null);
2224
2225                         /* save options. */
2226                         configuration.getBooleanValue(sonePrefix + "/Options/AutoFollow").setValue(sone.getOptions().getBooleanOption("AutoFollow").getReal());
2227                         configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewSones").setValue(sone.getOptions().getBooleanOption("ShowNotification/NewSones").getReal());
2228                         configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewPosts").setValue(sone.getOptions().getBooleanOption("ShowNotification/NewPosts").getReal());
2229                         configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewReplies").setValue(sone.getOptions().getBooleanOption("ShowNotification/NewReplies").getReal());
2230                         configuration.getBooleanValue(sonePrefix + "/Options/EnableSoneInsertNotifications").setValue(sone.getOptions().getBooleanOption("EnableSoneInsertNotifications").getReal());
2231
2232                         configuration.save();
2233
2234                         ((OwnIdentity) sone.getIdentity()).setProperty("Sone.LatestEdition", String.valueOf(sone.getLatestEdition()));
2235
2236                         logger.log(Level.INFO, "Sone %s saved.", sone);
2237                 } catch (ConfigurationException ce1) {
2238                         logger.log(Level.WARNING, "Could not save Sone: " + sone, ce1);
2239                 } catch (WebOfTrustException wote1) {
2240                         logger.log(Level.WARNING, "Could not set WoT property for Sone: " + sone, wote1);
2241                 }
2242         }
2243
2244         /**
2245          * Saves the current options.
2246          */
2247         private void saveConfiguration() {
2248                 synchronized (configuration) {
2249                         if (storingConfiguration) {
2250                                 logger.log(Level.FINE, "Already storing configuration…");
2251                                 return;
2252                         }
2253                         storingConfiguration = true;
2254                 }
2255
2256                 /* store the options first. */
2257                 try {
2258                         configuration.getIntValue("Option/ConfigurationVersion").setValue(0);
2259                         configuration.getIntValue("Option/InsertionDelay").setValue(options.getIntegerOption("InsertionDelay").getReal());
2260                         configuration.getIntValue("Option/PostsPerPage").setValue(options.getIntegerOption("PostsPerPage").getReal());
2261                         configuration.getIntValue("Option/CharactersPerPost").setValue(options.getIntegerOption("CharactersPerPost").getReal());
2262                         configuration.getIntValue("Option/PostCutOffLength").setValue(options.getIntegerOption("PostCutOffLength").getReal());
2263                         configuration.getBooleanValue("Option/RequireFullAccess").setValue(options.getBooleanOption("RequireFullAccess").getReal());
2264                         configuration.getIntValue("Option/PositiveTrust").setValue(options.getIntegerOption("PositiveTrust").getReal());
2265                         configuration.getIntValue("Option/NegativeTrust").setValue(options.getIntegerOption("NegativeTrust").getReal());
2266                         configuration.getStringValue("Option/TrustComment").setValue(options.getStringOption("TrustComment").getReal());
2267                         configuration.getBooleanValue("Option/ActivateFcpInterface").setValue(options.getBooleanOption("ActivateFcpInterface").getReal());
2268                         configuration.getIntValue("Option/FcpFullAccessRequired").setValue(options.getIntegerOption("FcpFullAccessRequired").getReal());
2269                         configuration.getBooleanValue("Option/SoneRescueMode").setValue(options.getBooleanOption("SoneRescueMode").getReal());
2270                         configuration.getBooleanValue("Option/ClearOnNextRestart").setValue(options.getBooleanOption("ClearOnNextRestart").getReal());
2271                         configuration.getBooleanValue("Option/ReallyClearOnNextRestart").setValue(options.getBooleanOption("ReallyClearOnNextRestart").getReal());
2272
2273                         /* save known Sones. */
2274                         int soneCounter = 0;
2275                         synchronized (newSones) {
2276                                 for (String knownSoneId : knownSones) {
2277                                         configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").setValue(knownSoneId);
2278                                 }
2279                                 configuration.getStringValue("KnownSone/" + soneCounter + "/ID").setValue(null);
2280                         }
2281
2282                         /* save Sone following times. */
2283                         soneCounter = 0;
2284                         synchronized (soneFollowingTimes) {
2285                                 for (Entry<Sone, Long> soneFollowingTime : soneFollowingTimes.entrySet()) {
2286                                         configuration.getStringValue("SoneFollowingTimes/" + soneCounter + "/Sone").setValue(soneFollowingTime.getKey().getId());
2287                                         configuration.getLongValue("SoneFollowingTimes/" + soneCounter + "/Time").setValue(soneFollowingTime.getValue());
2288                                         ++soneCounter;
2289                                 }
2290                                 configuration.getStringValue("SoneFollowingTimes/" + soneCounter + "/Sone").setValue(null);
2291                         }
2292
2293                         /* save known posts. */
2294                         int postCounter = 0;
2295                         synchronized (newPosts) {
2296                                 for (String knownPostId : knownPosts) {
2297                                         configuration.getStringValue("KnownPosts/" + postCounter++ + "/ID").setValue(knownPostId);
2298                                 }
2299                                 configuration.getStringValue("KnownPosts/" + postCounter + "/ID").setValue(null);
2300                         }
2301
2302                         /* save known replies. */
2303                         int replyCounter = 0;
2304                         synchronized (newReplies) {
2305                                 for (String knownReplyId : knownReplies) {
2306                                         configuration.getStringValue("KnownReplies/" + replyCounter++ + "/ID").setValue(knownReplyId);
2307                                 }
2308                                 configuration.getStringValue("KnownReplies/" + replyCounter + "/ID").setValue(null);
2309                         }
2310
2311                         /* save bookmarked posts. */
2312                         int bookmarkedPostCounter = 0;
2313                         synchronized (bookmarkedPosts) {
2314                                 for (String bookmarkedPostId : bookmarkedPosts) {
2315                                         configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").setValue(bookmarkedPostId);
2316                                 }
2317                         }
2318                         configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").setValue(null);
2319
2320                         /* now save it. */
2321                         configuration.save();
2322
2323                 } catch (ConfigurationException ce1) {
2324                         logger.log(Level.SEVERE, "Could not store configuration!", ce1);
2325                 } finally {
2326                         synchronized (configuration) {
2327                                 storingConfiguration = false;
2328                         }
2329                 }
2330         }
2331
2332         /**
2333          * Loads the configuration.
2334          */
2335         @SuppressWarnings("unchecked")
2336         private void loadConfiguration() {
2337                 /* create options. */
2338                 options.addIntegerOption("InsertionDelay", new DefaultOption<Integer>(60, new IntegerRangeValidator(0, Integer.MAX_VALUE), new OptionWatcher<Integer>() {
2339
2340                         @Override
2341                         public void optionChanged(Option<Integer> option, Integer oldValue, Integer newValue) {
2342                                 SoneInserter.setInsertionDelay(newValue);
2343                         }
2344
2345                 }));
2346                 options.addIntegerOption("PostsPerPage", new DefaultOption<Integer>(10, new IntegerRangeValidator(1, Integer.MAX_VALUE)));
2347                 options.addIntegerOption("CharactersPerPost", new DefaultOption<Integer>(400, new OrValidator<Integer>(new IntegerRangeValidator(50, Integer.MAX_VALUE), new EqualityValidator<Integer>(-1))));
2348                 options.addIntegerOption("PostCutOffLength", new DefaultOption<Integer>(200, new OrValidator<Integer>(new IntegerRangeValidator(50, Integer.MAX_VALUE), new EqualityValidator<Integer>(-1))));
2349                 options.addBooleanOption("RequireFullAccess", new DefaultOption<Boolean>(false));
2350                 options.addIntegerOption("PositiveTrust", new DefaultOption<Integer>(75, new IntegerRangeValidator(0, 100)));
2351                 options.addIntegerOption("NegativeTrust", new DefaultOption<Integer>(-25, new IntegerRangeValidator(-100, 100)));
2352                 options.addStringOption("TrustComment", new DefaultOption<String>("Set from Sone Web Interface"));
2353                 options.addBooleanOption("ActivateFcpInterface", new DefaultOption<Boolean>(false, new OptionWatcher<Boolean>() {
2354
2355                         @Override
2356                         @SuppressWarnings("synthetic-access")
2357                         public void optionChanged(Option<Boolean> option, Boolean oldValue, Boolean newValue) {
2358                                 fcpInterface.setActive(newValue);
2359                         }
2360                 }));
2361                 options.addIntegerOption("FcpFullAccessRequired", new DefaultOption<Integer>(2, new OptionWatcher<Integer>() {
2362
2363                         @Override
2364                         @SuppressWarnings("synthetic-access")
2365                         public void optionChanged(Option<Integer> option, Integer oldValue, Integer newValue) {
2366                                 fcpInterface.setFullAccessRequired(FullAccessRequired.values()[newValue]);
2367                         }
2368
2369                 }));
2370                 options.addBooleanOption("SoneRescueMode", new DefaultOption<Boolean>(false));
2371                 options.addBooleanOption("ClearOnNextRestart", new DefaultOption<Boolean>(false));
2372                 options.addBooleanOption("ReallyClearOnNextRestart", new DefaultOption<Boolean>(false));
2373
2374                 /* read options from configuration. */
2375                 options.getBooleanOption("ClearOnNextRestart").set(configuration.getBooleanValue("Option/ClearOnNextRestart").getValue(null));
2376                 options.getBooleanOption("ReallyClearOnNextRestart").set(configuration.getBooleanValue("Option/ReallyClearOnNextRestart").getValue(null));
2377                 boolean clearConfiguration = options.getBooleanOption("ClearOnNextRestart").get() && options.getBooleanOption("ReallyClearOnNextRestart").get();
2378                 options.getBooleanOption("ClearOnNextRestart").set(null);
2379                 options.getBooleanOption("ReallyClearOnNextRestart").set(null);
2380                 if (clearConfiguration) {
2381                         /* stop loading the configuration. */
2382                         return;
2383                 }
2384
2385                 loadConfigurationValue("InsertionDelay");
2386                 loadConfigurationValue("PostsPerPage");
2387                 loadConfigurationValue("CharactersPerPost");
2388                 loadConfigurationValue("PostCutOffLength");
2389                 options.getBooleanOption("RequireFullAccess").set(configuration.getBooleanValue("Option/RequireFullAccess").getValue(null));
2390                 loadConfigurationValue("PositiveTrust");
2391                 loadConfigurationValue("NegativeTrust");
2392                 options.getStringOption("TrustComment").set(configuration.getStringValue("Option/TrustComment").getValue(null));
2393                 options.getBooleanOption("ActivateFcpInterface").set(configuration.getBooleanValue("Option/ActivateFcpInterface").getValue(null));
2394                 options.getIntegerOption("FcpFullAccessRequired").set(configuration.getIntValue("Option/FcpFullAccessRequired").getValue(null));
2395                 options.getBooleanOption("SoneRescueMode").set(configuration.getBooleanValue("Option/SoneRescueMode").getValue(null));
2396
2397                 /* load known Sones. */
2398                 int soneCounter = 0;
2399                 while (true) {
2400                         String knownSoneId = configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").getValue(null);
2401                         if (knownSoneId == null) {
2402                                 break;
2403                         }
2404                         synchronized (newSones) {
2405                                 knownSones.add(knownSoneId);
2406                         }
2407                 }
2408
2409                 /* load Sone following times. */
2410                 soneCounter = 0;
2411                 while (true) {
2412                         String soneId = configuration.getStringValue("SoneFollowingTimes/" + soneCounter + "/Sone").getValue(null);
2413                         if (soneId == null) {
2414                                 break;
2415                         }
2416                         long time = configuration.getLongValue("SoneFollowingTimes/" + soneCounter + "/Time").getValue(Long.MAX_VALUE);
2417                         synchronized (soneFollowingTimes) {
2418                                 soneFollowingTimes.put(getSone(soneId), time);
2419                         }
2420                         ++soneCounter;
2421                 }
2422
2423                 /* load known posts. */
2424                 int postCounter = 0;
2425                 while (true) {
2426                         String knownPostId = configuration.getStringValue("KnownPosts/" + postCounter++ + "/ID").getValue(null);
2427                         if (knownPostId == null) {
2428                                 break;
2429                         }
2430                         synchronized (newPosts) {
2431                                 knownPosts.add(knownPostId);
2432                         }
2433                 }
2434
2435                 /* load known replies. */
2436                 int replyCounter = 0;
2437                 while (true) {
2438                         String knownReplyId = configuration.getStringValue("KnownReplies/" + replyCounter++ + "/ID").getValue(null);
2439                         if (knownReplyId == null) {
2440                                 break;
2441                         }
2442                         synchronized (newReplies) {
2443                                 knownReplies.add(knownReplyId);
2444                         }
2445                 }
2446
2447                 /* load bookmarked posts. */
2448                 int bookmarkedPostCounter = 0;
2449                 while (true) {
2450                         String bookmarkedPostId = configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").getValue(null);
2451                         if (bookmarkedPostId == null) {
2452                                 break;
2453                         }
2454                         synchronized (bookmarkedPosts) {
2455                                 bookmarkedPosts.add(bookmarkedPostId);
2456                         }
2457                 }
2458
2459         }
2460
2461         /**
2462          * Loads an {@link Integer} configuration value for the option with the
2463          * given name, logging validation failures.
2464          *
2465          * @param optionName
2466          *            The name of the option to load
2467          */
2468         private void loadConfigurationValue(String optionName) {
2469                 try {
2470                         options.getIntegerOption(optionName).set(configuration.getIntValue("Option/" + optionName).getValue(null));
2471                 } catch (IllegalArgumentException iae1) {
2472                         logger.log(Level.WARNING, "Invalid value for " + optionName + " in configuration, using default.");
2473                 }
2474         }
2475
2476         /**
2477          * Generate a Sone URI from the given URI and latest edition.
2478          *
2479          * @param uriString
2480          *            The URI to derive the Sone URI from
2481          * @return The derived URI
2482          */
2483         private FreenetURI getSoneUri(String uriString) {
2484                 try {
2485                         FreenetURI uri = new FreenetURI(uriString).setDocName("Sone").setMetaString(new String[0]);
2486                         return uri;
2487                 } catch (MalformedURLException mue1) {
2488                         logger.log(Level.WARNING, "Could not create Sone URI from URI: " + uriString, mue1);
2489                         return null;
2490                 }
2491         }
2492
2493         //
2494         // INTERFACE IdentityListener
2495         //
2496
2497         /**
2498          * {@inheritDoc}
2499          */
2500         @Override
2501         public void ownIdentityAdded(OwnIdentity ownIdentity) {
2502                 logger.log(Level.FINEST, "Adding OwnIdentity: " + ownIdentity);
2503                 if (ownIdentity.hasContext("Sone")) {
2504                         trustedIdentities.put(ownIdentity, Collections.synchronizedSet(new HashSet<Identity>()));
2505                         addLocalSone(ownIdentity);
2506                 }
2507         }
2508
2509         /**
2510          * {@inheritDoc}
2511          */
2512         @Override
2513         public void ownIdentityRemoved(OwnIdentity ownIdentity) {
2514                 logger.log(Level.FINEST, "Removing OwnIdentity: " + ownIdentity);
2515                 trustedIdentities.remove(ownIdentity);
2516         }
2517
2518         /**
2519          * {@inheritDoc}
2520          */
2521         @Override
2522         public void identityAdded(OwnIdentity ownIdentity, Identity identity) {
2523                 logger.log(Level.FINEST, "Adding Identity: " + identity);
2524                 trustedIdentities.get(ownIdentity).add(identity);
2525                 addRemoteSone(identity);
2526         }
2527
2528         /**
2529          * {@inheritDoc}
2530          */
2531         @Override
2532         public void identityUpdated(OwnIdentity ownIdentity, final Identity identity) {
2533                 new Thread(new Runnable() {
2534
2535                         @Override
2536                         @SuppressWarnings("synthetic-access")
2537                         public void run() {
2538                                 Sone sone = getRemoteSone(identity.getId(), false);
2539                                 sone.setIdentity(identity);
2540                                 sone.setLatestEdition(Numbers.safeParseLong(identity.getProperty("Sone.LatestEdition"), sone.getLatestEdition()));
2541                                 soneDownloader.addSone(sone);
2542                                 soneDownloader.fetchSone(sone);
2543                         }
2544                 }).start();
2545         }
2546
2547         /**
2548          * {@inheritDoc}
2549          */
2550         @Override
2551         public void identityRemoved(OwnIdentity ownIdentity, Identity identity) {
2552                 trustedIdentities.get(ownIdentity).remove(identity);
2553                 boolean foundIdentity = false;
2554                 for (Entry<OwnIdentity, Set<Identity>> trustedIdentity : trustedIdentities.entrySet()) {
2555                         if (trustedIdentity.getKey().equals(ownIdentity)) {
2556                                 continue;
2557                         }
2558                         if (trustedIdentity.getValue().contains(identity)) {
2559                                 foundIdentity = true;
2560                         }
2561                 }
2562                 if (foundIdentity) {
2563                         /* some local identity still trusts this identity, don’t remove. */
2564                         return;
2565                 }
2566                 Sone sone = getSone(identity.getId(), false);
2567                 if (sone == null) {
2568                         /* TODO - we don’t have the Sone anymore. should this happen? */
2569                         return;
2570                 }
2571                 synchronized (posts) {
2572                         synchronized (newPosts) {
2573                                 for (Post post : sone.getPosts()) {
2574                                         posts.remove(post.getId());
2575                                         newPosts.remove(post.getId());
2576                                         coreListenerManager.firePostRemoved(post);
2577                                 }
2578                         }
2579                 }
2580                 synchronized (replies) {
2581                         synchronized (newReplies) {
2582                                 for (PostReply reply : sone.getReplies()) {
2583                                         replies.remove(reply.getId());
2584                                         newReplies.remove(reply.getId());
2585                                         coreListenerManager.fireReplyRemoved(reply);
2586                                 }
2587                         }
2588                 }
2589                 synchronized (remoteSones) {
2590                         remoteSones.remove(identity.getId());
2591                 }
2592                 synchronized (newSones) {
2593                         newSones.remove(identity.getId());
2594                         coreListenerManager.fireSoneRemoved(sone);
2595                 }
2596         }
2597
2598         //
2599         // INTERFACE UpdateListener
2600         //
2601
2602         /**
2603          * {@inheritDoc}
2604          */
2605         @Override
2606         public void updateFound(Version version, long releaseTime, long latestEdition) {
2607                 coreListenerManager.fireUpdateFound(version, releaseTime, latestEdition);
2608         }
2609
2610         //
2611         // INTERFACE ImageInsertListener
2612         //
2613
2614         /**
2615          * {@inheritDoc}
2616          */
2617         @Override
2618         public void insertStarted(Sone sone) {
2619                 coreListenerManager.fireSoneInserting(sone);
2620         }
2621
2622         /**
2623          * {@inheritDoc}
2624          */
2625         @Override
2626         public void insertFinished(Sone sone, long insertDuration) {
2627                 coreListenerManager.fireSoneInserted(sone, insertDuration);
2628         }
2629
2630         /**
2631          * {@inheritDoc}
2632          */
2633         @Override
2634         public void insertAborted(Sone sone, Throwable cause) {
2635                 coreListenerManager.fireSoneInsertAborted(sone, cause);
2636         }
2637
2638         //
2639         // SONEINSERTLISTENER METHODS
2640         //
2641
2642         /**
2643          * {@inheritDoc}
2644          */
2645         @Override
2646         public void imageInsertStarted(Image image) {
2647                 logger.log(Level.WARNING, "Image insert started for " + image);
2648                 coreListenerManager.fireImageInsertStarted(image);
2649         }
2650
2651         /**
2652          * {@inheritDoc}
2653          */
2654         @Override
2655         public void imageInsertAborted(Image image) {
2656                 logger.log(Level.WARNING, "Image insert aborted for " + image);
2657                 coreListenerManager.fireImageInsertAborted(image);
2658         }
2659
2660         /**
2661          * {@inheritDoc}
2662          */
2663         @Override
2664         public void imageInsertFinished(Image image, FreenetURI key) {
2665                 logger.log(Level.WARNING, "Image insert finished for " + image + ": " + key);
2666                 image.setKey(key.toString());
2667                 deleteTemporaryImage(image.getId());
2668                 saveSone(image.getSone());
2669                 coreListenerManager.fireImageInsertFinished(image);
2670         }
2671
2672         /**
2673          * {@inheritDoc}
2674          */
2675         @Override
2676         public void imageInsertFailed(Image image, Throwable cause) {
2677                 logger.log(Level.WARNING, "Image insert failed for " + image, cause);
2678                 coreListenerManager.fireImageInsertFailed(image, cause);
2679         }
2680
2681         /**
2682          * Convenience interface for external classes that want to access the core’s
2683          * configuration.
2684          *
2685          * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
2686          */
2687         public static class Preferences {
2688
2689                 /** The wrapped options. */
2690                 private final Options options;
2691
2692                 /**
2693                  * Creates a new preferences object wrapped around the given options.
2694                  *
2695                  * @param options
2696                  *            The options to wrap
2697                  */
2698                 public Preferences(Options options) {
2699                         this.options = options;
2700                 }
2701
2702                 /**
2703                  * Returns the insertion delay.
2704                  *
2705                  * @return The insertion delay
2706                  */
2707                 public int getInsertionDelay() {
2708                         return options.getIntegerOption("InsertionDelay").get();
2709                 }
2710
2711                 /**
2712                  * Validates the given insertion delay.
2713                  *
2714                  * @param insertionDelay
2715                  *            The insertion delay to validate
2716                  * @return {@code true} if the given insertion delay was valid, {@code
2717                  *         false} otherwise
2718                  */
2719                 public boolean validateInsertionDelay(Integer insertionDelay) {
2720                         return options.getIntegerOption("InsertionDelay").validate(insertionDelay);
2721                 }
2722
2723                 /**
2724                  * Sets the insertion delay
2725                  *
2726                  * @param insertionDelay
2727                  *            The new insertion delay, or {@code null} to restore it to
2728                  *            the default value
2729                  * @return This preferences
2730                  */
2731                 public Preferences setInsertionDelay(Integer insertionDelay) {
2732                         options.getIntegerOption("InsertionDelay").set(insertionDelay);
2733                         return this;
2734                 }
2735
2736                 /**
2737                  * Returns the number of posts to show per page.
2738                  *
2739                  * @return The number of posts to show per page
2740                  */
2741                 public int getPostsPerPage() {
2742                         return options.getIntegerOption("PostsPerPage").get();
2743                 }
2744
2745                 /**
2746                  * Validates the number of posts per page.
2747                  *
2748                  * @param postsPerPage
2749                  *            The number of posts per page
2750                  * @return {@code true} if the number of posts per page was valid,
2751                  *         {@code false} otherwise
2752                  */
2753                 public boolean validatePostsPerPage(Integer postsPerPage) {
2754                         return options.getIntegerOption("PostsPerPage").validate(postsPerPage);
2755                 }
2756
2757                 /**
2758                  * Sets the number of posts to show per page.
2759                  *
2760                  * @param postsPerPage
2761                  *            The number of posts to show per page
2762                  * @return This preferences object
2763                  */
2764                 public Preferences setPostsPerPage(Integer postsPerPage) {
2765                         options.getIntegerOption("PostsPerPage").set(postsPerPage);
2766                         return this;
2767                 }
2768
2769                 /**
2770                  * Returns the number of characters per post, or <code>-1</code> if the
2771                  * posts should not be cut off.
2772                  *
2773                  * @return The numbers of characters per post
2774                  */
2775                 public int getCharactersPerPost() {
2776                         return options.getIntegerOption("CharactersPerPost").get();
2777                 }
2778
2779                 /**
2780                  * Validates the number of characters per post.
2781                  *
2782                  * @param charactersPerPost
2783                  *            The number of characters per post
2784                  * @return {@code true} if the number of characters per post was valid,
2785                  *         {@code false} otherwise
2786                  */
2787                 public boolean validateCharactersPerPost(Integer charactersPerPost) {
2788                         return options.getIntegerOption("CharactersPerPost").validate(charactersPerPost);
2789                 }
2790
2791                 /**
2792                  * Sets the number of characters per post.
2793                  *
2794                  * @param charactersPerPost
2795                  *            The number of characters per post, or <code>-1</code> to
2796                  *            not cut off the posts
2797                  * @return This preferences objects
2798                  */
2799                 public Preferences setCharactersPerPost(Integer charactersPerPost) {
2800                         options.getIntegerOption("CharactersPerPost").set(charactersPerPost);
2801                         return this;
2802                 }
2803
2804                 /**
2805                  * Returns the number of characters the shortened post should have.
2806                  *
2807                  * @return The number of characters of the snippet
2808                  */
2809                 public int getPostCutOffLength() {
2810                         return options.getIntegerOption("PostCutOffLength").get();
2811                 }
2812
2813                 /**
2814                  * Validates the number of characters after which to cut off the post.
2815                  *
2816                  * @param postCutOffLength
2817                  *            The number of characters of the snippet
2818                  * @return {@code true} if the number of characters of the snippet is
2819                  *         valid, {@code false} otherwise
2820                  */
2821                 public boolean validatePostCutOffLength(Integer postCutOffLength) {
2822                         return options.getIntegerOption("PostCutOffLength").validate(postCutOffLength);
2823                 }
2824
2825                 /**
2826                  * Sets the number of characters the shortened post should have.
2827                  *
2828                  * @param postCutOffLength
2829                  *            The number of characters of the snippet
2830                  * @return This preferences
2831                  */
2832                 public Preferences setPostCutOffLength(Integer postCutOffLength) {
2833                         options.getIntegerOption("PostCutOffLength").set(postCutOffLength);
2834                         return this;
2835                 }
2836
2837                 /**
2838                  * Returns whether Sone requires full access to be even visible.
2839                  *
2840                  * @return {@code true} if Sone requires full access, {@code false}
2841                  *         otherwise
2842                  */
2843                 public boolean isRequireFullAccess() {
2844                         return options.getBooleanOption("RequireFullAccess").get();
2845                 }
2846
2847                 /**
2848                  * Sets whether Sone requires full access to be even visible.
2849                  *
2850                  * @param requireFullAccess
2851                  *            {@code true} if Sone requires full access, {@code false}
2852                  *            otherwise
2853                  */
2854                 public void setRequireFullAccess(Boolean requireFullAccess) {
2855                         options.getBooleanOption("RequireFullAccess").set(requireFullAccess);
2856                 }
2857
2858                 /**
2859                  * Returns the positive trust.
2860                  *
2861                  * @return The positive trust
2862                  */
2863                 public int getPositiveTrust() {
2864                         return options.getIntegerOption("PositiveTrust").get();
2865                 }
2866
2867                 /**
2868                  * Validates the positive trust.
2869                  *
2870                  * @param positiveTrust
2871                  *            The positive trust to validate
2872                  * @return {@code true} if the positive trust was valid, {@code false}
2873                  *         otherwise
2874                  */
2875                 public boolean validatePositiveTrust(Integer positiveTrust) {
2876                         return options.getIntegerOption("PositiveTrust").validate(positiveTrust);
2877                 }
2878
2879                 /**
2880                  * Sets the positive trust.
2881                  *
2882                  * @param positiveTrust
2883                  *            The new positive trust, or {@code null} to restore it to
2884                  *            the default vlaue
2885                  * @return This preferences
2886                  */
2887                 public Preferences setPositiveTrust(Integer positiveTrust) {
2888                         options.getIntegerOption("PositiveTrust").set(positiveTrust);
2889                         return this;
2890                 }
2891
2892                 /**
2893                  * Returns the negative trust.
2894                  *
2895                  * @return The negative trust
2896                  */
2897                 public int getNegativeTrust() {
2898                         return options.getIntegerOption("NegativeTrust").get();
2899                 }
2900
2901                 /**
2902                  * Validates the negative trust.
2903                  *
2904                  * @param negativeTrust
2905                  *            The negative trust to validate
2906                  * @return {@code true} if the negative trust was valid, {@code false}
2907                  *         otherwise
2908                  */
2909                 public boolean validateNegativeTrust(Integer negativeTrust) {
2910                         return options.getIntegerOption("NegativeTrust").validate(negativeTrust);
2911                 }
2912
2913                 /**
2914                  * Sets the negative trust.
2915                  *
2916                  * @param negativeTrust
2917                  *            The negative trust, or {@code null} to restore it to the
2918                  *            default value
2919                  * @return The preferences
2920                  */
2921                 public Preferences setNegativeTrust(Integer negativeTrust) {
2922                         options.getIntegerOption("NegativeTrust").set(negativeTrust);
2923                         return this;
2924                 }
2925
2926                 /**
2927                  * Returns the trust comment. This is the comment that is set in the web
2928                  * of trust when a trust value is assigned to an identity.
2929                  *
2930                  * @return The trust comment
2931                  */
2932                 public String getTrustComment() {
2933                         return options.getStringOption("TrustComment").get();
2934                 }
2935
2936                 /**
2937                  * Sets the trust comment.
2938                  *
2939                  * @param trustComment
2940                  *            The trust comment, or {@code null} to restore it to the
2941                  *            default value
2942                  * @return This preferences
2943                  */
2944                 public Preferences setTrustComment(String trustComment) {
2945                         options.getStringOption("TrustComment").set(trustComment);
2946                         return this;
2947                 }
2948
2949                 /**
2950                  * Returns whether the {@link FcpInterface FCP interface} is currently
2951                  * active.
2952                  *
2953                  * @see FcpInterface#setActive(boolean)
2954                  * @return {@code true} if the FCP interface is currently active,
2955                  *         {@code false} otherwise
2956                  */
2957                 public boolean isFcpInterfaceActive() {
2958                         return options.getBooleanOption("ActivateFcpInterface").get();
2959                 }
2960
2961                 /**
2962                  * Sets whether the {@link FcpInterface FCP interface} is currently
2963                  * active.
2964                  *
2965                  * @see FcpInterface#setActive(boolean)
2966                  * @param fcpInterfaceActive
2967                  *            {@code true} to activate the FCP interface, {@code false}
2968                  *            to deactivate the FCP interface
2969                  * @return This preferences object
2970                  */
2971                 public Preferences setFcpInterfaceActive(boolean fcpInterfaceActive) {
2972                         options.getBooleanOption("ActivateFcpInterface").set(fcpInterfaceActive);
2973                         return this;
2974                 }
2975
2976                 /**
2977                  * Returns the action level for which full access to the FCP interface
2978                  * is required.
2979                  *
2980                  * @return The action level for which full access to the FCP interface
2981                  *         is required
2982                  */
2983                 public FullAccessRequired getFcpFullAccessRequired() {
2984                         return FullAccessRequired.values()[options.getIntegerOption("FcpFullAccessRequired").get()];
2985                 }
2986
2987                 /**
2988                  * Sets the action level for which full access to the FCP interface is
2989                  * required
2990                  *
2991                  * @param fcpFullAccessRequired
2992                  *            The action level
2993                  * @return This preferences
2994                  */
2995                 public Preferences setFcpFullAccessRequired(FullAccessRequired fcpFullAccessRequired) {
2996                         options.getIntegerOption("FcpFullAccessRequired").set((fcpFullAccessRequired != null) ? fcpFullAccessRequired.ordinal() : null);
2997                         return this;
2998                 }
2999
3000                 /**
3001                  * Returns whether Sone should clear its settings on the next restart.
3002                  * In order to be effective, {@link #isReallyClearOnNextRestart()} needs
3003                  * to return {@code true} as well!
3004                  *
3005                  * @return {@code true} if Sone should clear its settings on the next
3006                  *         restart, {@code false} otherwise
3007                  */
3008                 public boolean isClearOnNextRestart() {
3009                         return options.getBooleanOption("ClearOnNextRestart").get();
3010                 }
3011
3012                 /**
3013                  * Sets whether Sone will clear its settings on the next restart.
3014                  *
3015                  * @param clearOnNextRestart
3016                  *            {@code true} if Sone should clear its settings on the next
3017                  *            restart, {@code false} otherwise
3018                  * @return This preferences
3019                  */
3020                 public Preferences setClearOnNextRestart(Boolean clearOnNextRestart) {
3021                         options.getBooleanOption("ClearOnNextRestart").set(clearOnNextRestart);
3022                         return this;
3023                 }
3024
3025                 /**
3026                  * Returns whether Sone should really clear its settings on next
3027                  * restart. This is a confirmation option that needs to be set in
3028                  * addition to {@link #isClearOnNextRestart()} in order to clear Sone’s
3029                  * settings on the next restart.
3030                  *
3031                  * @return {@code true} if Sone should really clear its settings on the
3032                  *         next restart, {@code false} otherwise
3033                  */
3034                 public boolean isReallyClearOnNextRestart() {
3035                         return options.getBooleanOption("ReallyClearOnNextRestart").get();
3036                 }
3037
3038                 /**
3039                  * Sets whether Sone should really clear its settings on the next
3040                  * restart.
3041                  *
3042                  * @param reallyClearOnNextRestart
3043                  *            {@code true} if Sone should really clear its settings on
3044                  *            the next restart, {@code false} otherwise
3045                  * @return This preferences
3046                  */
3047                 public Preferences setReallyClearOnNextRestart(Boolean reallyClearOnNextRestart) {
3048                         options.getBooleanOption("ReallyClearOnNextRestart").set(reallyClearOnNextRestart);
3049                         return this;
3050                 }
3051
3052         }
3053
3054 }