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

   1 /*
   2  * Sone - Core.java - Copyright © 2010 David Roden
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 package net.pterodactylus.sone.core;
  19
  20 import java.net.MalformedURLException;
  21 import java.util.ArrayList;
  22 import java.util.Collections;
  23 import java.util.HashMap;
  24 import java.util.HashSet;
  25 import java.util.List;
  26 import java.util.Map;
  27 import java.util.Set;
  28 import java.util.Map.Entry;
  29 import java.util.concurrent.ExecutorService;
  30 import java.util.concurrent.Executors;
  31 import java.util.logging.Level;
  32 import java.util.logging.Logger;
  33
  34 import net.pterodactylus.sone.core.Options.DefaultOption;
  35 import net.pterodactylus.sone.core.Options.Option;
  36 import net.pterodactylus.sone.core.Options.OptionWatcher;
  37 import net.pterodactylus.sone.data.Client;
  38 import net.pterodactylus.sone.data.Post;
  39 import net.pterodactylus.sone.data.Profile;
  40 import net.pterodactylus.sone.data.Profile.Field;
  41 import net.pterodactylus.sone.data.Reply;
  42 import net.pterodactylus.sone.data.Sone;
  43 import net.pterodactylus.sone.fcp.FcpInterface;
  44 import net.pterodactylus.sone.fcp.FcpInterface.FullAccessRequired;
  45 import net.pterodactylus.sone.freenet.wot.Identity;
  46 import net.pterodactylus.sone.freenet.wot.IdentityListener;
  47 import net.pterodactylus.sone.freenet.wot.IdentityManager;
  48 import net.pterodactylus.sone.freenet.wot.OwnIdentity;
  49 import net.pterodactylus.sone.freenet.wot.Trust;
  50 import net.pterodactylus.sone.freenet.wot.WebOfTrustException;
  51 import net.pterodactylus.sone.main.SonePlugin;
  52 import net.pterodactylus.util.collection.Pair;
  53 import net.pterodactylus.util.config.Configuration;
  54 import net.pterodactylus.util.config.ConfigurationException;
  55 import net.pterodactylus.util.logging.Logging;
  56 import net.pterodactylus.util.number.Numbers;
  57 import net.pterodactylus.util.thread.Ticker;
  58 import net.pterodactylus.util.validation.IntegerRangeValidator;
  59 import net.pterodactylus.util.validation.Validation;
  60 import net.pterodactylus.util.version.Version;
  61 import freenet.client.FetchResult;
  62 import freenet.keys.FreenetURI;
  63
  64 /**
  65  * The Sone core.
  66  *
  67  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  68  */
  69 public class Core implements IdentityListener, UpdateListener, SoneProvider, PostProvider {
  70
  71         /**
  72          * Enumeration for the possible states of a {@link Sone}.
  73          *
  74          * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  75          */
  76         public enum SoneStatus {
  77
  78                 /** The Sone is unknown, i.e. not yet downloaded. */
  79                 unknown,
  80
  81                 /** The Sone is idle, i.e. not being downloaded or inserted. */
  82                 idle,
  83
  84                 /** The Sone is currently being inserted. */
  85                 inserting,
  86
  87                 /** The Sone is currently being downloaded. */
  88                 downloading,
  89         }
  90
  91         /** The logger. */
  92         private static final Logger logger = Logging.getLogger(Core.class);
  93
  94         /** The options. */
  95         private final Options options = new Options();
  96
  97         /** The preferences. */
  98         private final Preferences preferences = new Preferences(options);
  99
 100         /** The core listener manager. */
 101         private final CoreListenerManager coreListenerManager = new CoreListenerManager(this);
 102
 103         /** The configuration. */
 104         private Configuration configuration;
 105
 106         /** Whether we’re currently saving the configuration. */
 107         private boolean storingConfiguration = false;
 108
 109         /** The identity manager. */
 110         private final IdentityManager identityManager;
 111
 112         /** Interface to freenet. */
 113         private final FreenetInterface freenetInterface;
 114
 115         /** The Sone downloader. */
 116         private final SoneDownloader soneDownloader;
 117
 118         /** Sone downloader thread-pool. */
 119         private final ExecutorService soneDownloaders = Executors.newFixedThreadPool(10);
 120
 121         /** The update checker. */
 122         private final UpdateChecker updateChecker;
 123
 124         /** The FCP interface. */
 125         private volatile FcpInterface fcpInterface;
 126
 127         /** Whether the core has been stopped. */
 128         private volatile boolean stopped;
 129
 130         /** The Sones’ statuses. */
 131         /* synchronize access on itself. */
 132         private final Map<Sone, SoneStatus> soneStatuses = new HashMap<Sone, SoneStatus>();
 133
 134         /** Locked local Sones. */
 135         /* synchronize on itself. */
 136         private final Set<Sone> lockedSones = new HashSet<Sone>();
 137
 138         /** Sone inserters. */
 139         /* synchronize access on this on localSones. */
 140         private final Map<Sone, SoneInserter> soneInserters = new HashMap<Sone, SoneInserter>();
 141
 142         /** All local Sones. */
 143         /* synchronize access on this on itself. */
 144         private Map<String, Sone> localSones = new HashMap<String, Sone>();
 145
 146         /** All remote Sones. */
 147         /* synchronize access on this on itself. */
 148         private Map<String, Sone> remoteSones = new HashMap<String, Sone>();
 149
 150         /** All new Sones. */
 151         private Set<String> newSones = new HashSet<String>();
 152
 153         /** All known Sones. */
 154         /* synchronize access on {@link #newSones}. */
 155         private Set<String> knownSones = new HashSet<String>();
 156
 157         /** All posts. */
 158         private Map<String, Post> posts = new HashMap<String, Post>();
 159
 160         /** All new posts. */
 161         private Set<String> newPosts = new HashSet<String>();
 162
 163         /** All known posts. */
 164         /* synchronize access on {@link #newPosts}. */
 165         private Set<String> knownPosts = new HashSet<String>();
 166
 167         /** All replies. */
 168         private Map<String, Reply> replies = new HashMap<String, Reply>();
 169
 170         /** All new replies. */
 171         private Set<String> newReplies = new HashSet<String>();
 172
 173         /** All known replies. */
 174         private Set<String> knownReplies = new HashSet<String>();
 175
 176         /** All bookmarked posts. */
 177         /* synchronize access on itself. */
 178         private Set<String> bookmarkedPosts = new HashSet<String>();
 179
 180         /** Trusted identities, sorted by own identities. */
 181         private Map<OwnIdentity, Set<Identity>> trustedIdentities = Collections.synchronizedMap(new HashMap<OwnIdentity, Set<Identity>>());
 182
 183         /** Ticker for threads that mark own elements as known. */
 184         private Ticker localElementTicker = new Ticker();
 185
 186         /**
 187          * Creates a new core.
 188          *
 189          * @param configuration
 190          *            The configuration of the core
 191          * @param freenetInterface
 192          *            The freenet interface
 193          * @param identityManager
 194          *            The identity manager
 195          */
 196         public Core(Configuration configuration, FreenetInterface freenetInterface, IdentityManager identityManager) {
 197                 this.configuration = configuration;
 198                 this.freenetInterface = freenetInterface;
 199                 this.identityManager = identityManager;
 200                 this.soneDownloader = new SoneDownloader(this, freenetInterface);
 201                 this.updateChecker = new UpdateChecker(freenetInterface);
 202         }
 203
 204         //
 205         // LISTENER MANAGEMENT
 206         //
 207
 208         /**
 209          * Adds a new core listener.
 210          *
 211          * @param coreListener
 212          *            The listener to add
 213          */
 214         public void addCoreListener(CoreListener coreListener) {
 215                 coreListenerManager.addListener(coreListener);
 216         }
 217
 218         /**
 219          * Removes a core listener.
 220          *
 221          * @param coreListener
 222          *            The listener to remove
 223          */
 224         public void removeCoreListener(CoreListener coreListener) {
 225                 coreListenerManager.removeListener(coreListener);
 226         }
 227
 228         //
 229         // ACCESSORS
 230         //
 231
 232         /**
 233          * Sets the configuration to use. This will automatically save the current
 234          * configuration to the given configuration.
 235          *
 236          * @param configuration
 237          *            The new configuration to use
 238          */
 239         public void setConfiguration(Configuration configuration) {
 240                 this.configuration = configuration;
 241                 saveConfiguration();
 242         }
 243
 244         /**
 245          * Returns the options used by the core.
 246          *
 247          * @return The options of the core
 248          */
 249         public Preferences getPreferences() {
 250                 return preferences;
 251         }
 252
 253         /**
 254          * Returns the identity manager used by the core.
 255          *
 256          * @return The identity manager
 257          */
 258         public IdentityManager getIdentityManager() {
 259                 return identityManager;
 260         }
 261
 262         /**
 263          * Returns the update checker.
 264          *
 265          * @return The update checker
 266          */
 267         public UpdateChecker getUpdateChecker() {
 268                 return updateChecker;
 269         }
 270
 271         /**
 272          * Sets the FCP interface to use.
 273          *
 274          * @param fcpInterface
 275          *            The FCP interface to use
 276          */
 277         public void setFcpInterface(FcpInterface fcpInterface) {
 278                 this.fcpInterface = fcpInterface;
 279         }
 280
 281         /**
 282          * Returns the status of the given Sone.
 283          *
 284          * @param sone
 285          *            The Sone to get the status for
 286          * @return The status of the Sone
 287          */
 288         public SoneStatus getSoneStatus(Sone sone) {
 289                 synchronized (soneStatuses) {
 290                         return soneStatuses.get(sone);
 291                 }
 292         }
 293
 294         /**
 295          * Sets the status of the given Sone.
 296          *
 297          * @param sone
 298          *            The Sone to set the status of
 299          * @param soneStatus
 300          *            The status to set
 301          */
 302         public void setSoneStatus(Sone sone, SoneStatus soneStatus) {
 303                 synchronized (soneStatuses) {
 304                         soneStatuses.put(sone, soneStatus);
 305                 }
 306         }
 307
 308         /**
 309          * Returns whether the given Sone is currently locked.
 310          *
 311          * @param sone
 312          *            The sone to check
 313          * @return {@code true} if the Sone is locked, {@code false} if it is not
 314          */
 315         public boolean isLocked(Sone sone) {
 316                 synchronized (lockedSones) {
 317                         return lockedSones.contains(sone);
 318                 }
 319         }
 320
 321         /**
 322          * Returns all Sones, remote and local.
 323          *
 324          * @return All Sones
 325          */
 326         public Set<Sone> getSones() {
 327                 Set<Sone> allSones = new HashSet<Sone>();
 328                 allSones.addAll(getLocalSones());
 329                 allSones.addAll(getRemoteSones());
 330                 return allSones;
 331         }
 332
 333         /**
 334          * Returns the Sone with the given ID, regardless whether it’s local or
 335          * remote.
 336          *
 337          * @param id
 338          *            The ID of the Sone to get
 339          * @return The Sone with the given ID, or {@code null} if there is no such
 340          *         Sone
 341          */
 342         public Sone getSone(String id) {
 343                 return getSone(id, true);
 344         }
 345
 346         /**
 347          * Returns the Sone with the given ID, regardless whether it’s local or
 348          * remote.
 349          *
 350          * @param id
 351          *            The ID of the Sone to get
 352          * @param create
 353          *            {@code true} to create a new Sone if none exists,
 354          *            {@code false} to return {@code null} if a Sone with the given
 355          *            ID does not exist
 356          * @return The Sone with the given ID, or {@code null} if there is no such
 357          *         Sone
 358          */
 359         @Override
 360         public Sone getSone(String id, boolean create) {
 361                 if (isLocalSone(id)) {
 362                         return getLocalSone(id);
 363                 }
 364                 return getRemoteSone(id, create);
 365         }
 366
 367         /**
 368          * Checks whether the core knows a Sone with the given ID.
 369          *
 370          * @param id
 371          *            The ID of the Sone
 372          * @return {@code true} if there is a Sone with the given ID, {@code false}
 373          *         otherwise
 374          */
 375         public boolean hasSone(String id) {
 376                 return isLocalSone(id) || isRemoteSone(id);
 377         }
 378
 379         /**
 380          * Returns whether the given Sone is a local Sone.
 381          *
 382          * @param sone
 383          *            The Sone to check for its locality
 384          * @return {@code true} if the given Sone is local, {@code false} otherwise
 385          */
 386         public boolean isLocalSone(Sone sone) {
 387                 synchronized (localSones) {
 388                         return localSones.containsKey(sone.getId());
 389                 }
 390         }
 391
 392         /**
 393          * Returns whether the given ID is the ID of a local Sone.
 394          *
 395          * @param id
 396          *            The Sone ID to check for its locality
 397          * @return {@code true} if the given ID is a local Sone, {@code false}
 398          *         otherwise
 399          */
 400         public boolean isLocalSone(String id) {
 401                 synchronized (localSones) {
 402                         return localSones.containsKey(id);
 403                 }
 404         }
 405
 406         /**
 407          * Returns all local Sones.
 408          *
 409          * @return All local Sones
 410          */
 411         public Set<Sone> getLocalSones() {
 412                 synchronized (localSones) {
 413                         return new HashSet<Sone>(localSones.values());
 414                 }
 415         }
 416
 417         /**
 418          * Returns the local Sone with the given ID.
 419          *
 420          * @param id
 421          *            The ID of the Sone to get
 422          * @return The Sone with the given ID
 423          */
 424         public Sone getLocalSone(String id) {
 425                 return getLocalSone(id, true);
 426         }
 427
 428         /**
 429          * Returns the local Sone with the given ID, optionally creating a new Sone.
 430          *
 431          * @param id
 432          *            The ID of the Sone
 433          * @param create
 434          *            {@code true} to create a new Sone if none exists,
 435          *            {@code false} to return null if none exists
 436          * @return The Sone with the given ID, or {@code null}
 437          */
 438         public Sone getLocalSone(String id, boolean create) {
 439                 synchronized (localSones) {
 440                         Sone sone = localSones.get(id);
 441                         if ((sone == null) && create) {
 442                                 sone = new Sone(id);
 443                                 localSones.put(id, sone);
 444                                 setSoneStatus(sone, SoneStatus.unknown);
 445                         }
 446                         return sone;
 447                 }
 448         }
 449
 450         /**
 451          * Returns all remote Sones.
 452          *
 453          * @return All remote Sones
 454          */
 455         public Set<Sone> getRemoteSones() {
 456                 synchronized (remoteSones) {
 457                         return new HashSet<Sone>(remoteSones.values());
 458                 }
 459         }
 460
 461         /**
 462          * Returns the remote Sone with the given ID.
 463          *
 464          * @param id
 465          *            The ID of the remote Sone to get
 466          * @return The Sone with the given ID
 467          */
 468         public Sone getRemoteSone(String id) {
 469                 return getRemoteSone(id, true);
 470         }
 471
 472         /**
 473          * Returns the remote Sone with the given ID.
 474          *
 475          * @param id
 476          *            The ID of the remote Sone to get
 477          * @param create
 478          *            {@code true} to always create a Sone, {@code false} to return
 479          *            {@code null} if no Sone with the given ID exists
 480          * @return The Sone with the given ID
 481          */
 482         public Sone getRemoteSone(String id, boolean create) {
 483                 synchronized (remoteSones) {
 484                         Sone sone = remoteSones.get(id);
 485                         if ((sone == null) && create) {
 486                                 sone = new Sone(id);
 487                                 remoteSones.put(id, sone);
 488                                 setSoneStatus(sone, SoneStatus.unknown);
 489                         }
 490                         return sone;
 491                 }
 492         }
 493
 494         /**
 495          * Returns whether the given Sone is a remote Sone.
 496          *
 497          * @param sone
 498          *            The Sone to check
 499          * @return {@code true} if the given Sone is a remote Sone, {@code false}
 500          *         otherwise
 501          */
 502         public boolean isRemoteSone(Sone sone) {
 503                 synchronized (remoteSones) {
 504                         return remoteSones.containsKey(sone.getId());
 505                 }
 506         }
 507
 508         /**
 509          * Returns whether the Sone with the given ID is a remote Sone.
 510          *
 511          * @param id
 512          *            The ID of the Sone to check
 513          * @return {@code true} if the Sone with the given ID is a remote Sone,
 514          *         {@code false} otherwise
 515          */
 516         public boolean isRemoteSone(String id) {
 517                 synchronized (remoteSones) {
 518                         return remoteSones.containsKey(id);
 519                 }
 520         }
 521
 522         /**
 523          * Returns whether the Sone with the given ID is a new Sone.
 524          *
 525          * @param soneId
 526          *            The ID of the sone to check for
 527          * @return {@code true} if the given Sone is new, false otherwise
 528          */
 529         public boolean isNewSone(String soneId) {
 530                 synchronized (newSones) {
 531                         return !knownSones.contains(soneId) && newSones.contains(soneId);
 532                 }
 533         }
 534
 535         /**
 536          * Returns whether the given Sone has been modified.
 537          *
 538          * @param sone
 539          *            The Sone to check for modifications
 540          * @return {@code true} if a modification has been detected in the Sone,
 541          *         {@code false} otherwise
 542          */
 543         public boolean isModifiedSone(Sone sone) {
 544                 return (soneInserters.containsKey(sone)) ? soneInserters.get(sone).isModified() : false;
 545         }
 546
 547         /**
 548          * Returns whether the target Sone is trusted by the origin Sone.
 549          *
 550          * @param origin
 551          *            The origin Sone
 552          * @param target
 553          *            The target Sone
 554          * @return {@code true} if the target Sone is trusted by the origin Sone
 555          */
 556         public boolean isSoneTrusted(Sone origin, Sone target) {
 557                 Validation.begin().isNotNull("Origin", origin).isNotNull("Target", target).check().isInstanceOf("Origin’s OwnIdentity", origin.getIdentity(), OwnIdentity.class).check();
 558                 return trustedIdentities.containsKey(origin.getIdentity()) && trustedIdentities.get(origin.getIdentity()).contains(target.getIdentity());
 559         }
 560
 561         /**
 562          * Returns the post with the given ID.
 563          *
 564          * @param postId
 565          *            The ID of the post to get
 566          * @return The post with the given ID, or a new post with the given ID
 567          */
 568         public Post getPost(String postId) {
 569                 return getPost(postId, true);
 570         }
 571
 572         /**
 573          * Returns the post with the given ID, optionally creating a new post.
 574          *
 575          * @param postId
 576          *            The ID of the post to get
 577          * @param create
 578          *            {@code true} it create a new post if no post with the given ID
 579          *            exists, {@code false} to return {@code null}
 580          * @return The post, or {@code null} if there is no such post
 581          */
 582         @Override
 583         public Post getPost(String postId, boolean create) {
 584                 synchronized (posts) {
 585                         Post post = posts.get(postId);
 586                         if ((post == null) && create) {
 587                                 post = new Post(postId);
 588                                 posts.put(postId, post);
 589                         }
 590                         return post;
 591                 }
 592         }
 593
 594         /**
 595          * Returns whether the given post ID is new.
 596          *
 597          * @param postId
 598          *            The post ID
 599          * @return {@code true} if the post is considered to be new, {@code false}
 600          *         otherwise
 601          */
 602         public boolean isNewPost(String postId) {
 603                 synchronized (newPosts) {
 604                         return !knownPosts.contains(postId) && newPosts.contains(postId);
 605                 }
 606         }
 607
 608         /**
 609          * Returns all posts that have the given Sone as recipient.
 610          *
 611          * @see Post#getRecipient()
 612          * @param recipient
 613          *            The recipient of the posts
 614          * @return All posts that have the given Sone as recipient
 615          */
 616         public Set<Post> getDirectedPosts(Sone recipient) {
 617                 Validation.begin().isNotNull("Recipient", recipient).check();
 618                 Set<Post> directedPosts = new HashSet<Post>();
 619                 synchronized (posts) {
 620                         for (Post post : posts.values()) {
 621                                 if (recipient.equals(post.getRecipient())) {
 622                                         directedPosts.add(post);
 623                                 }
 624                         }
 625                 }
 626                 return directedPosts;
 627         }
 628
 629         /**
 630          * Returns the reply with the given ID. If there is no reply with the given
 631          * ID yet, a new one is created.
 632          *
 633          * @param replyId
 634          *            The ID of the reply to get
 635          * @return The reply
 636          */
 637         public Reply getReply(String replyId) {
 638                 return getReply(replyId, true);
 639         }
 640
 641         /**
 642          * Returns the reply with the given ID. If there is no reply with the given
 643          * ID yet, a new one is created, unless {@code create} is false in which
 644          * case {@code null} is returned.
 645          *
 646          * @param replyId
 647          *            The ID of the reply to get
 648          * @param create
 649          *            {@code true} to always return a {@link Reply}, {@code false}
 650          *            to return {@code null} if no reply can be found
 651          * @return The reply, or {@code null} if there is no such reply
 652          */
 653         public Reply getReply(String replyId, boolean create) {
 654                 synchronized (replies) {
 655                         Reply reply = replies.get(replyId);
 656                         if (create && (reply == null)) {
 657                                 reply = new Reply(replyId);
 658                                 replies.put(replyId, reply);
 659                         }
 660                         return reply;
 661                 }
 662         }
 663
 664         /**
 665          * Returns all replies for the given post, order ascending by time.
 666          *
 667          * @param post
 668          *            The post to get all replies for
 669          * @return All replies for the given post
 670          */
 671         public List<Reply> getReplies(Post post) {
 672                 Set<Sone> sones = getSones();
 673                 List<Reply> replies = new ArrayList<Reply>();
 674                 for (Sone sone : sones) {
 675                         for (Reply reply : sone.getReplies()) {
 676                                 if (reply.getPost().equals(post)) {
 677                                         replies.add(reply);
 678                                 }
 679                         }
 680                 }
 681                 Collections.sort(replies, Reply.TIME_COMPARATOR);
 682                 return replies;
 683         }
 684
 685         /**
 686          * Returns whether the reply with the given ID is new.
 687          *
 688          * @param replyId
 689          *            The ID of the reply to check
 690          * @return {@code true} if the reply is considered to be new, {@code false}
 691          *         otherwise
 692          */
 693         public boolean isNewReply(String replyId) {
 694                 synchronized (newReplies) {
 695                         return !knownReplies.contains(replyId) && newReplies.contains(replyId);
 696                 }
 697         }
 698
 699         /**
 700          * Returns all Sones that have liked the given post.
 701          *
 702          * @param post
 703          *            The post to get the liking Sones for
 704          * @return The Sones that like the given post
 705          */
 706         public Set<Sone> getLikes(Post post) {
 707                 Set<Sone> sones = new HashSet<Sone>();
 708                 for (Sone sone : getSones()) {
 709                         if (sone.getLikedPostIds().contains(post.getId())) {
 710                                 sones.add(sone);
 711                         }
 712                 }
 713                 return sones;
 714         }
 715
 716         /**
 717          * Returns all Sones that have liked the given reply.
 718          *
 719          * @param reply
 720          *            The reply to get the liking Sones for
 721          * @return The Sones that like the given reply
 722          */
 723         public Set<Sone> getLikes(Reply reply) {
 724                 Set<Sone> sones = new HashSet<Sone>();
 725                 for (Sone sone : getSones()) {
 726                         if (sone.getLikedReplyIds().contains(reply.getId())) {
 727                                 sones.add(sone);
 728                         }
 729                 }
 730                 return sones;
 731         }
 732
 733         /**
 734          * Returns whether the given post is bookmarked.
 735          *
 736          * @param post
 737          *            The post to check
 738          * @return {@code true} if the given post is bookmarked, {@code false}
 739          *         otherwise
 740          */
 741         public boolean isBookmarked(Post post) {
 742                 return isPostBookmarked(post.getId());
 743         }
 744
 745         /**
 746          * Returns whether the post with the given ID is bookmarked.
 747          *
 748          * @param id
 749          *            The ID of the post to check
 750          * @return {@code true} if the post with the given ID is bookmarked,
 751          *         {@code false} otherwise
 752          */
 753         public boolean isPostBookmarked(String id) {
 754                 synchronized (bookmarkedPosts) {
 755                         return bookmarkedPosts.contains(id);
 756                 }
 757         }
 758
 759         /**
 760          * Returns all currently known bookmarked posts.
 761          *
 762          * @return All bookmarked posts
 763          */
 764         public Set<Post> getBookmarkedPosts() {
 765                 Set<Post> posts = new HashSet<Post>();
 766                 synchronized (bookmarkedPosts) {
 767                         for (String bookmarkedPostId : bookmarkedPosts) {
 768                                 Post post = getPost(bookmarkedPostId, false);
 769                                 if (post != null) {
 770                                         posts.add(post);
 771                                 }
 772                         }
 773                 }
 774                 return posts;
 775         }
 776
 777         //
 778         // ACTIONS
 779         //
 780
 781         /**
 782          * Locks the given Sone. A locked Sone will not be inserted by
 783          * {@link SoneInserter} until it is {@link #unlockSone(Sone) unlocked}
 784          * again.
 785          *
 786          * @param sone
 787          *            The sone to lock
 788          */
 789         public void lockSone(Sone sone) {
 790                 synchronized (lockedSones) {
 791                         if (lockedSones.add(sone)) {
 792                                 coreListenerManager.fireSoneLocked(sone);
 793                         }
 794                 }
 795         }
 796
 797         /**
 798          * Unlocks the given Sone.
 799          *
 800          * @see #lockSone(Sone)
 801          * @param sone
 802          *            The sone to unlock
 803          */
 804         public void unlockSone(Sone sone) {
 805                 synchronized (lockedSones) {
 806                         if (lockedSones.remove(sone)) {
 807                                 coreListenerManager.fireSoneUnlocked(sone);
 808                         }
 809                 }
 810         }
 811
 812         /**
 813          * Adds a local Sone from the given ID which has to be the ID of an own
 814          * identity.
 815          *
 816          * @param id
 817          *            The ID of an own identity to add a Sone for
 818          * @return The added (or already existing) Sone
 819          */
 820         public Sone addLocalSone(String id) {
 821                 synchronized (localSones) {
 822                         if (localSones.containsKey(id)) {
 823                                 logger.log(Level.FINE, "Tried to add known local Sone: %s", id);
 824                                 return localSones.get(id);
 825                         }
 826                         OwnIdentity ownIdentity = identityManager.getOwnIdentity(id);
 827                         if (ownIdentity == null) {
 828                                 logger.log(Level.INFO, "Invalid Sone ID: %s", id);
 829                                 return null;
 830                         }
 831                         return addLocalSone(ownIdentity);
 832                 }
 833         }
 834
 835         /**
 836          * Adds a local Sone from the given own identity.
 837          *
 838          * @param ownIdentity
 839          *            The own identity to create a Sone from
 840          * @return The added (or already existing) Sone
 841          */
 842         public Sone addLocalSone(OwnIdentity ownIdentity) {
 843                 if (ownIdentity == null) {
 844                         logger.log(Level.WARNING, "Given OwnIdentity is null!");
 845                         return null;
 846                 }
 847                 synchronized (localSones) {
 848                         final Sone sone;
 849                         try {
 850                                 sone = getLocalSone(ownIdentity.getId()).setIdentity(ownIdentity).setInsertUri(new FreenetURI(ownIdentity.getInsertUri())).setRequestUri(new FreenetURI(ownIdentity.getRequestUri()));
 851                         } catch (MalformedURLException mue1) {
 852                                 logger.log(Level.SEVERE, "Could not convert the Identity’s URIs to Freenet URIs: " + ownIdentity.getInsertUri() + ", " + ownIdentity.getRequestUri(), mue1);
 853                                 return null;
 854                         }
 855                         sone.setLatestEdition(Numbers.safeParseLong(ownIdentity.getProperty("Sone.LatestEdition"), (long) 0));
 856                         sone.setClient(new Client("Sone", SonePlugin.VERSION.toString()));
 857                         /* TODO - load posts ’n stuff */
 858                         localSones.put(ownIdentity.getId(), sone);
 859                         final SoneInserter soneInserter = new SoneInserter(this, freenetInterface, sone);
 860                         soneInserters.put(sone, soneInserter);
 861                         setSoneStatus(sone, SoneStatus.idle);
 862                         loadSone(sone);
 863                         if (!preferences.isSoneRescueMode()) {
 864                                 soneInserter.start();
 865                         }
 866                         new Thread(new Runnable() {
 867
 868                                 @Override
 869                                 @SuppressWarnings("synthetic-access")
 870                                 public void run() {
 871                                         if (!preferences.isSoneRescueMode()) {
 872                                                 return;
 873                                         }
 874                                         logger.log(Level.INFO, "Trying to restore Sone from Freenet…");
 875                                         coreListenerManager.fireRescuingSone(sone);
 876                                         lockSone(sone);
 877                                         long edition = sone.getLatestEdition();
 878                                         /* find the latest edition the node knows about. */
 879                                         Pair<FreenetURI, FetchResult> currentUri = freenetInterface.fetchUri(sone.getRequestUri());
 880                                         if (currentUri != null) {
 881                                                 long currentEdition = currentUri.getLeft().getEdition();
 882                                                 if (currentEdition > edition) {
 883                                                         edition = currentEdition;
 884                                                 }
 885                                         }
 886                                         while (!stopped && (edition >= 0) && preferences.isSoneRescueMode()) {
 887                                                 logger.log(Level.FINE, "Downloading edition " + edition + "…");
 888                                                 soneDownloader.fetchSone(sone, sone.getRequestUri().setKeyType("SSK").setDocName("Sone-" + edition));
 889                                                 --edition;
 890                                         }
 891                                         logger.log(Level.INFO, "Finished restoring Sone from Freenet, starting Inserter…");
 892                                         saveSone(sone);
 893                                         coreListenerManager.fireRescuedSone(sone);
 894                                         soneInserter.start();
 895                                 }
 896
 897                         }, "Sone Downloader").start();
 898                         return sone;
 899                 }
 900         }
 901
 902         /**
 903          * Creates a new Sone for the given own identity.
 904          *
 905          * @param ownIdentity
 906          *            The own identity to create a Sone for
 907          * @return The created Sone
 908          */
 909         public Sone createSone(OwnIdentity ownIdentity) {
 910                 try {
 911                         ownIdentity.addContext("Sone");
 912                 } catch (WebOfTrustException wote1) {
 913                         logger.log(Level.SEVERE, "Could not add “Sone” context to own identity: " + ownIdentity, wote1);
 914                         return null;
 915                 }
 916                 Sone sone = addLocalSone(ownIdentity);
 917                 sone.getOptions().addBooleanOption("AutoFollow", new DefaultOption<Boolean>(false));
 918                 sone.addFriend("nwa8lHa271k2QvJ8aa0Ov7IHAV-DFOCFgmDt3X6BpCI");
 919                 saveSone(sone);
 920                 return sone;
 921         }
 922
 923         /**
 924          * Adds the Sone of the given identity.
 925          *
 926          * @param identity
 927          *            The identity whose Sone to add
 928          * @return The added or already existing Sone
 929          */
 930         public Sone addRemoteSone(Identity identity) {
 931                 if (identity == null) {
 932                         logger.log(Level.WARNING, "Given Identity is null!");
 933                         return null;
 934                 }
 935                 synchronized (remoteSones) {
 936                         final Sone sone = getRemoteSone(identity.getId()).setIdentity(identity);
 937                         boolean newSone = sone.getRequestUri() == null;
 938                         sone.setRequestUri(getSoneUri(identity.getRequestUri()));
 939                         sone.setLatestEdition(Numbers.safeParseLong(identity.getProperty("Sone.LatestEdition"), (long) 0));
 940                         if (newSone) {
 941                                 synchronized (newSones) {
 942                                         newSone = !knownSones.contains(sone.getId());
 943                                         if (newSone) {
 944                                                 newSones.add(sone.getId());
 945                                         }
 946                                 }
 947                                 if (newSone) {
 948                                         coreListenerManager.fireNewSoneFound(sone);
 949                                         for (Sone localSone : getLocalSones()) {
 950                                                 if (localSone.getOptions().getBooleanOption("AutoFollow").get()) {
 951                                                         localSone.addFriend(sone.getId());
 952                                                         saveSone(localSone);
 953                                                 }
 954                                         }
 955                                 }
 956                         }
 957                         remoteSones.put(identity.getId(), sone);
 958                         soneDownloader.addSone(sone);
 959                         setSoneStatus(sone, SoneStatus.unknown);
 960                         soneDownloaders.execute(new Runnable() {
 961
 962                                 @Override
 963                                 @SuppressWarnings("synthetic-access")
 964                                 public void run() {
 965                                         soneDownloader.fetchSone(sone, sone.getRequestUri());
 966                                 }
 967
 968                         });
 969                         return sone;
 970                 }
 971         }
 972
 973         /**
 974          * Retrieves the trust relationship from the origin to the target. If the
 975          * trust relationship can not be retrieved, {@code null} is returned.
 976          *
 977          * @see Identity#getTrust(OwnIdentity)
 978          * @param origin
 979          *            The origin of the trust tree
 980          * @param target
 981          *            The target of the trust
 982          * @return The trust relationship
 983          */
 984         public Trust getTrust(Sone origin, Sone target) {
 985                 if (!isLocalSone(origin)) {
 986                         logger.log(Level.WARNING, "Tried to get trust from remote Sone: %s", origin);
 987                         return null;
 988                 }
 989                 return target.getIdentity().getTrust((OwnIdentity) origin.getIdentity());
 990         }
 991
 992         /**
 993          * Sets the trust value of the given origin Sone for the target Sone.
 994          *
 995          * @param origin
 996          *            The origin Sone
 997          * @param target
 998          *            The target Sone
 999          * @param trustValue
1000          *            The trust value (from {@code -100} to {@code 100})
1001          */
1002         public void setTrust(Sone origin, Sone target, int trustValue) {
1003                 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();
1004                 try {
1005                         ((OwnIdentity) origin.getIdentity()).setTrust(target.getIdentity(), trustValue, preferences.getTrustComment());
1006                 } catch (WebOfTrustException wote1) {
1007                         logger.log(Level.WARNING, "Could not set trust for Sone: " + target, wote1);
1008                 }
1009         }
1010
1011         /**
1012          * Removes any trust assignment for the given target Sone.
1013          *
1014          * @param origin
1015          *            The trust origin
1016          * @param target
1017          *            The trust target
1018          */
1019         public void removeTrust(Sone origin, Sone target) {
1020                 Validation.begin().isNotNull("Trust Origin", origin).isNotNull("Trust Target", target).check().isInstanceOf("Trust Origin Identity", origin.getIdentity(), OwnIdentity.class).check();
1021                 try {
1022                         ((OwnIdentity) origin.getIdentity()).removeTrust(target.getIdentity());
1023                 } catch (WebOfTrustException wote1) {
1024                         logger.log(Level.WARNING, "Could not remove trust for Sone: " + target, wote1);
1025                 }
1026         }
1027
1028         /**
1029          * Assigns the configured positive trust value for the given target.
1030          *
1031          * @param origin
1032          *            The trust origin
1033          * @param target
1034          *            The trust target
1035          */
1036         public void trustSone(Sone origin, Sone target) {
1037                 setTrust(origin, target, preferences.getPositiveTrust());
1038         }
1039
1040         /**
1041          * Assigns the configured negative trust value for the given target.
1042          *
1043          * @param origin
1044          *            The trust origin
1045          * @param target
1046          *            The trust target
1047          */
1048         public void distrustSone(Sone origin, Sone target) {
1049                 setTrust(origin, target, preferences.getNegativeTrust());
1050         }
1051
1052         /**
1053          * Removes the trust assignment for the given target.
1054          *
1055          * @param origin
1056          *            The trust origin
1057          * @param target
1058          *            The trust target
1059          */
1060         public void untrustSone(Sone origin, Sone target) {
1061                 removeTrust(origin, target);
1062         }
1063
1064         /**
1065          * Updates the stores Sone with the given Sone.
1066          *
1067          * @param sone
1068          *            The updated Sone
1069          */
1070         public void updateSone(Sone sone) {
1071                 if (hasSone(sone.getId())) {
1072                         boolean soneRescueMode = isLocalSone(sone) && preferences.isSoneRescueMode();
1073                         Sone storedSone = getSone(sone.getId());
1074                         if (!soneRescueMode && !(sone.getTime() > storedSone.getTime())) {
1075                                 logger.log(Level.FINE, "Downloaded Sone %s is not newer than stored Sone %s.", new Object[] { sone, storedSone });
1076                                 return;
1077                         }
1078                         synchronized (posts) {
1079                                 if (!soneRescueMode) {
1080                                         for (Post post : storedSone.getPosts()) {
1081                                                 posts.remove(post.getId());
1082                                                 if (!sone.getPosts().contains(post)) {
1083                                                         coreListenerManager.firePostRemoved(post);
1084                                                 }
1085                                         }
1086                                 }
1087                                 List<Post> storedPosts = storedSone.getPosts();
1088                                 synchronized (newPosts) {
1089                                         for (Post post : sone.getPosts()) {
1090                                                 post.setSone(storedSone);
1091                                                 if (!storedPosts.contains(post) && !knownPosts.contains(post.getId())) {
1092                                                         newPosts.add(post.getId());
1093                                                         coreListenerManager.fireNewPostFound(post);
1094                                                 }
1095                                                 posts.put(post.getId(), post);
1096                                         }
1097                                 }
1098                         }
1099                         synchronized (replies) {
1100                                 if (!soneRescueMode) {
1101                                         for (Reply reply : storedSone.getReplies()) {
1102                                                 replies.remove(reply.getId());
1103                                                 if (!sone.getReplies().contains(reply)) {
1104                                                         coreListenerManager.fireReplyRemoved(reply);
1105                                                 }
1106                                         }
1107                                 }
1108                                 Set<Reply> storedReplies = storedSone.getReplies();
1109                                 synchronized (newReplies) {
1110                                         for (Reply reply : sone.getReplies()) {
1111                                                 reply.setSone(storedSone);
1112                                                 if (!storedReplies.contains(reply) && !knownReplies.contains(reply.getId())) {
1113                                                         newReplies.add(reply.getId());
1114                                                         coreListenerManager.fireNewReplyFound(reply);
1115                                                 }
1116                                                 replies.put(reply.getId(), reply);
1117                                         }
1118                                 }
1119                         }
1120                         synchronized (storedSone) {
1121                                 if (!soneRescueMode || (sone.getTime() > storedSone.getTime())) {
1122                                         storedSone.setTime(sone.getTime());
1123                                 }
1124                                 storedSone.setClient(sone.getClient());
1125                                 storedSone.setProfile(sone.getProfile());
1126                                 if (soneRescueMode) {
1127                                         for (Post post : sone.getPosts()) {
1128                                                 storedSone.addPost(post);
1129                                         }
1130                                         for (Reply reply : sone.getReplies()) {
1131                                                 storedSone.addReply(reply);
1132                                         }
1133                                         for (String likedPostId : sone.getLikedPostIds()) {
1134                                                 storedSone.addLikedPostId(likedPostId);
1135                                         }
1136                                         for (String likedReplyId : sone.getLikedReplyIds()) {
1137                                                 storedSone.addLikedReplyId(likedReplyId);
1138                                         }
1139                                 } else {
1140                                         storedSone.setPosts(sone.getPosts());
1141                                         storedSone.setReplies(sone.getReplies());
1142                                         storedSone.setLikePostIds(sone.getLikedPostIds());
1143                                         storedSone.setLikeReplyIds(sone.getLikedReplyIds());
1144                                 }
1145                                 storedSone.setLatestEdition(sone.getLatestEdition());
1146                         }
1147                 }
1148         }
1149
1150         /**
1151          * Deletes the given Sone. This will remove the Sone from the
1152          * {@link #getLocalSone(String) local Sones}, stops its {@link SoneInserter}
1153          * and remove the context from its identity.
1154          *
1155          * @param sone
1156          *            The Sone to delete
1157          */
1158         public void deleteSone(Sone sone) {
1159                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
1160                         logger.log(Level.WARNING, "Tried to delete Sone of non-own identity: %s", sone);
1161                         return;
1162                 }
1163                 synchronized (localSones) {
1164                         if (!localSones.containsKey(sone.getId())) {
1165                                 logger.log(Level.WARNING, "Tried to delete non-local Sone: %s", sone);
1166                                 return;
1167                         }
1168                         localSones.remove(sone.getId());
1169                         soneInserters.remove(sone).stop();
1170                 }
1171                 try {
1172                         ((OwnIdentity) sone.getIdentity()).removeContext("Sone");
1173                         ((OwnIdentity) sone.getIdentity()).removeProperty("Sone.LatestEdition");
1174                 } catch (WebOfTrustException wote1) {
1175                         logger.log(Level.WARNING, "Could not remove context and properties from Sone: " + sone, wote1);
1176                 }
1177                 try {
1178                         configuration.getLongValue("Sone/" + sone.getId() + "/Time").setValue(null);
1179                 } catch (ConfigurationException ce1) {
1180                         logger.log(Level.WARNING, "Could not remove Sone from configuration!", ce1);
1181                 }
1182         }
1183
1184         /**
1185          * Marks the given Sone as known. If the Sone was {@link #isNewPost(String)
1186          * new} before, a {@link CoreListener#markSoneKnown(Sone)} event is fired.
1187          *
1188          * @param sone
1189          *            The Sone to mark as known
1190          */
1191         public void markSoneKnown(Sone sone) {
1192                 synchronized (newSones) {
1193                         if (newSones.remove(sone.getId())) {
1194                                 knownSones.add(sone.getId());
1195                                 coreListenerManager.fireMarkSoneKnown(sone);
1196                                 saveConfiguration();
1197                         }
1198                 }
1199         }
1200
1201         /**
1202          * Loads and updates the given Sone from the configuration. If any error is
1203          * encountered, loading is aborted and the given Sone is not changed.
1204          *
1205          * @param sone
1206          *            The Sone to load and update
1207          */
1208         public void loadSone(Sone sone) {
1209                 if (!isLocalSone(sone)) {
1210                         logger.log(Level.FINE, "Tried to load non-local Sone: %s", sone);
1211                         return;
1212                 }
1213
1214                 /* initialize options. */
1215                 sone.getOptions().addBooleanOption("AutoFollow", new DefaultOption<Boolean>(false));
1216
1217                 /* load Sone. */
1218                 String sonePrefix = "Sone/" + sone.getId();
1219                 Long soneTime = configuration.getLongValue(sonePrefix + "/Time").getValue(null);
1220                 if (soneTime == null) {
1221                         logger.log(Level.INFO, "Could not load Sone because no Sone has been saved.");
1222                         return;
1223                 }
1224                 String lastInsertFingerprint = configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").getValue("");
1225
1226                 /* load profile. */
1227                 Profile profile = new Profile();
1228                 profile.setFirstName(configuration.getStringValue(sonePrefix + "/Profile/FirstName").getValue(null));
1229                 profile.setMiddleName(configuration.getStringValue(sonePrefix + "/Profile/MiddleName").getValue(null));
1230                 profile.setLastName(configuration.getStringValue(sonePrefix + "/Profile/LastName").getValue(null));
1231                 profile.setBirthDay(configuration.getIntValue(sonePrefix + "/Profile/BirthDay").getValue(null));
1232                 profile.setBirthMonth(configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").getValue(null));
1233                 profile.setBirthYear(configuration.getIntValue(sonePrefix + "/Profile/BirthYear").getValue(null));
1234
1235                 /* load profile fields. */
1236                 while (true) {
1237                         String fieldPrefix = sonePrefix + "/Profile/Fields/" + profile.getFields().size();
1238                         String fieldName = configuration.getStringValue(fieldPrefix + "/Name").getValue(null);
1239                         if (fieldName == null) {
1240                                 break;
1241                         }
1242                         String fieldValue = configuration.getStringValue(fieldPrefix + "/Value").getValue("");
1243                         profile.addField(fieldName).setValue(fieldValue);
1244                 }
1245
1246                 /* load posts. */
1247                 Set<Post> posts = new HashSet<Post>();
1248                 while (true) {
1249                         String postPrefix = sonePrefix + "/Posts/" + posts.size();
1250                         String postId = configuration.getStringValue(postPrefix + "/ID").getValue(null);
1251                         if (postId == null) {
1252                                 break;
1253                         }
1254                         String postRecipientId = configuration.getStringValue(postPrefix + "/Recipient").getValue(null);
1255                         long postTime = configuration.getLongValue(postPrefix + "/Time").getValue((long) 0);
1256                         String postText = configuration.getStringValue(postPrefix + "/Text").getValue(null);
1257                         if ((postTime == 0) || (postText == null)) {
1258                                 logger.log(Level.WARNING, "Invalid post found, aborting load!");
1259                                 return;
1260                         }
1261                         Post post = getPost(postId).setSone(sone).setTime(postTime).setText(postText);
1262                         if ((postRecipientId != null) && (postRecipientId.length() == 43)) {
1263                                 post.setRecipient(getSone(postRecipientId));
1264                         }
1265                         posts.add(post);
1266                 }
1267
1268                 /* load replies. */
1269                 Set<Reply> replies = new HashSet<Reply>();
1270                 while (true) {
1271                         String replyPrefix = sonePrefix + "/Replies/" + replies.size();
1272                         String replyId = configuration.getStringValue(replyPrefix + "/ID").getValue(null);
1273                         if (replyId == null) {
1274                                 break;
1275                         }
1276                         String postId = configuration.getStringValue(replyPrefix + "/Post/ID").getValue(null);
1277                         long replyTime = configuration.getLongValue(replyPrefix + "/Time").getValue((long) 0);
1278                         String replyText = configuration.getStringValue(replyPrefix + "/Text").getValue(null);
1279                         if ((postId == null) || (replyTime == 0) || (replyText == null)) {
1280                                 logger.log(Level.WARNING, "Invalid reply found, aborting load!");
1281                                 return;
1282                         }
1283                         replies.add(getReply(replyId).setSone(sone).setPost(getPost(postId)).setTime(replyTime).setText(replyText));
1284                 }
1285
1286                 /* load post likes. */
1287                 Set<String> likedPostIds = new HashSet<String>();
1288                 while (true) {
1289                         String likedPostId = configuration.getStringValue(sonePrefix + "/Likes/Post/" + likedPostIds.size() + "/ID").getValue(null);
1290                         if (likedPostId == null) {
1291                                 break;
1292                         }
1293                         likedPostIds.add(likedPostId);
1294                 }
1295
1296                 /* load reply likes. */
1297                 Set<String> likedReplyIds = new HashSet<String>();
1298                 while (true) {
1299                         String likedReplyId = configuration.getStringValue(sonePrefix + "/Likes/Reply/" + likedReplyIds.size() + "/ID").getValue(null);
1300                         if (likedReplyId == null) {
1301                                 break;
1302                         }
1303                         likedReplyIds.add(likedReplyId);
1304                 }
1305
1306                 /* load friends. */
1307                 Set<String> friends = new HashSet<String>();
1308                 while (true) {
1309                         String friendId = configuration.getStringValue(sonePrefix + "/Friends/" + friends.size() + "/ID").getValue(null);
1310                         if (friendId == null) {
1311                                 break;
1312                         }
1313                         friends.add(friendId);
1314                 }
1315
1316                 /* load options. */
1317                 sone.getOptions().getBooleanOption("AutoFollow").set(configuration.getBooleanValue(sonePrefix + "/Options/AutoFollow").getValue(null));
1318
1319                 /* if we’re still here, Sone was loaded successfully. */
1320                 synchronized (sone) {
1321                         sone.setTime(soneTime);
1322                         sone.setProfile(profile);
1323                         sone.setPosts(posts);
1324                         sone.setReplies(replies);
1325                         sone.setLikePostIds(likedPostIds);
1326                         sone.setLikeReplyIds(likedReplyIds);
1327                         sone.setFriends(friends);
1328                         soneInserters.get(sone).setLastInsertFingerprint(lastInsertFingerprint);
1329                 }
1330                 synchronized (newSones) {
1331                         for (String friend : friends) {
1332                                 knownSones.add(friend);
1333                         }
1334                 }
1335                 synchronized (newPosts) {
1336                         for (Post post : posts) {
1337                                 knownPosts.add(post.getId());
1338                         }
1339                 }
1340                 synchronized (newReplies) {
1341                         for (Reply reply : replies) {
1342                                 knownReplies.add(reply.getId());
1343                         }
1344                 }
1345         }
1346
1347         /**
1348          * Saves the given Sone. This will persist all local settings for the given
1349          * Sone, such as the friends list and similar, private options.
1350          *
1351          * @param sone
1352          *            The Sone to save
1353          */
1354         public synchronized void saveSone(Sone sone) {
1355                 if (!isLocalSone(sone)) {
1356                         logger.log(Level.FINE, "Tried to save non-local Sone: %s", sone);
1357                         return;
1358                 }
1359                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
1360                         logger.log(Level.WARNING, "Local Sone without OwnIdentity found, refusing to save: %s", sone);
1361                         return;
1362                 }
1363
1364                 logger.log(Level.INFO, "Saving Sone: %s", sone);
1365                 try {
1366                         ((OwnIdentity) sone.getIdentity()).setProperty("Sone.LatestEdition", String.valueOf(sone.getLatestEdition()));
1367
1368                         /* save Sone into configuration. */
1369                         String sonePrefix = "Sone/" + sone.getId();
1370                         configuration.getLongValue(sonePrefix + "/Time").setValue(sone.getTime());
1371                         configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").setValue(soneInserters.get(sone).getLastInsertFingerprint());
1372
1373                         /* save profile. */
1374                         Profile profile = sone.getProfile();
1375                         configuration.getStringValue(sonePrefix + "/Profile/FirstName").setValue(profile.getFirstName());
1376                         configuration.getStringValue(sonePrefix + "/Profile/MiddleName").setValue(profile.getMiddleName());
1377                         configuration.getStringValue(sonePrefix + "/Profile/LastName").setValue(profile.getLastName());
1378                         configuration.getIntValue(sonePrefix + "/Profile/BirthDay").setValue(profile.getBirthDay());
1379                         configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").setValue(profile.getBirthMonth());
1380                         configuration.getIntValue(sonePrefix + "/Profile/BirthYear").setValue(profile.getBirthYear());
1381
1382                         /* save profile fields. */
1383                         int fieldCounter = 0;
1384                         for (Field profileField : profile.getFields()) {
1385                                 String fieldPrefix = sonePrefix + "/Profile/Fields/" + fieldCounter++;
1386                                 configuration.getStringValue(fieldPrefix + "/Name").setValue(profileField.getName());
1387                                 configuration.getStringValue(fieldPrefix + "/Value").setValue(profileField.getValue());
1388                         }
1389                         configuration.getStringValue(sonePrefix + "/Profile/Fields/" + fieldCounter + "/Name").setValue(null);
1390
1391                         /* save posts. */
1392                         int postCounter = 0;
1393                         for (Post post : sone.getPosts()) {
1394                                 String postPrefix = sonePrefix + "/Posts/" + postCounter++;
1395                                 configuration.getStringValue(postPrefix + "/ID").setValue(post.getId());
1396                                 configuration.getStringValue(postPrefix + "/Recipient").setValue((post.getRecipient() != null) ? post.getRecipient().getId() : null);
1397                                 configuration.getLongValue(postPrefix + "/Time").setValue(post.getTime());
1398                                 configuration.getStringValue(postPrefix + "/Text").setValue(post.getText());
1399                         }
1400                         configuration.getStringValue(sonePrefix + "/Posts/" + postCounter + "/ID").setValue(null);
1401
1402                         /* save replies. */
1403                         int replyCounter = 0;
1404                         for (Reply reply : sone.getReplies()) {
1405                                 String replyPrefix = sonePrefix + "/Replies/" + replyCounter++;
1406                                 configuration.getStringValue(replyPrefix + "/ID").setValue(reply.getId());
1407                                 configuration.getStringValue(replyPrefix + "/Post/ID").setValue(reply.getPost().getId());
1408                                 configuration.getLongValue(replyPrefix + "/Time").setValue(reply.getTime());
1409                                 configuration.getStringValue(replyPrefix + "/Text").setValue(reply.getText());
1410                         }
1411                         configuration.getStringValue(sonePrefix + "/Replies/" + replyCounter + "/ID").setValue(null);
1412
1413                         /* save post likes. */
1414                         int postLikeCounter = 0;
1415                         for (String postId : sone.getLikedPostIds()) {
1416                                 configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter++ + "/ID").setValue(postId);
1417                         }
1418                         configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter + "/ID").setValue(null);
1419
1420                         /* save reply likes. */
1421                         int replyLikeCounter = 0;
1422                         for (String replyId : sone.getLikedReplyIds()) {
1423                                 configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter++ + "/ID").setValue(replyId);
1424                         }
1425                         configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter + "/ID").setValue(null);
1426
1427                         /* save friends. */
1428                         int friendCounter = 0;
1429                         for (String friendId : sone.getFriends()) {
1430                                 configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter++ + "/ID").setValue(friendId);
1431                         }
1432                         configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter + "/ID").setValue(null);
1433
1434                         /* save options. */
1435                         configuration.getBooleanValue(sonePrefix + "/Options/AutoFollow").setValue(sone.getOptions().getBooleanOption("AutoFollow").getReal());
1436
1437                         configuration.save();
1438                         logger.log(Level.INFO, "Sone %s saved.", sone);
1439                 } catch (ConfigurationException ce1) {
1440                         logger.log(Level.WARNING, "Could not save Sone: " + sone, ce1);
1441                 } catch (WebOfTrustException wote1) {
1442                         logger.log(Level.WARNING, "Could not set WoT property for Sone: " + sone, wote1);
1443                 }
1444         }
1445
1446         /**
1447          * Creates a new post.
1448          *
1449          * @param sone
1450          *            The Sone that creates the post
1451          * @param text
1452          *            The text of the post
1453          * @return The created post
1454          */
1455         public Post createPost(Sone sone, String text) {
1456                 return createPost(sone, System.currentTimeMillis(), text);
1457         }
1458
1459         /**
1460          * Creates a new post.
1461          *
1462          * @param sone
1463          *            The Sone that creates the post
1464          * @param time
1465          *            The time of the post
1466          * @param text
1467          *            The text of the post
1468          * @return The created post
1469          */
1470         public Post createPost(Sone sone, long time, String text) {
1471                 return createPost(sone, null, time, text);
1472         }
1473
1474         /**
1475          * Creates a new post.
1476          *
1477          * @param sone
1478          *            The Sone that creates the post
1479          * @param recipient
1480          *            The recipient Sone, or {@code null} if this post does not have
1481          *            a recipient
1482          * @param text
1483          *            The text of the post
1484          * @return The created post
1485          */
1486         public Post createPost(Sone sone, Sone recipient, String text) {
1487                 return createPost(sone, recipient, System.currentTimeMillis(), text);
1488         }
1489
1490         /**
1491          * Creates a new post.
1492          *
1493          * @param sone
1494          *            The Sone that creates the post
1495          * @param recipient
1496          *            The recipient Sone, or {@code null} if this post does not have
1497          *            a recipient
1498          * @param time
1499          *            The time of the post
1500          * @param text
1501          *            The text of the post
1502          * @return The created post
1503          */
1504         public Post createPost(Sone sone, Sone recipient, long time, String text) {
1505                 if (!isLocalSone(sone)) {
1506                         logger.log(Level.FINE, "Tried to create post for non-local Sone: %s", sone);
1507                         return null;
1508                 }
1509                 final Post post = new Post(sone, time, text);
1510                 if (recipient != null) {
1511                         post.setRecipient(recipient);
1512                 }
1513                 synchronized (posts) {
1514                         posts.put(post.getId(), post);
1515                 }
1516                 synchronized (newPosts) {
1517                         newPosts.add(post.getId());
1518                         coreListenerManager.fireNewPostFound(post);
1519                 }
1520                 sone.addPost(post);
1521                 saveSone(sone);
1522                 localElementTicker.registerEvent(System.currentTimeMillis() + 10 * 1000, new Runnable() {
1523
1524                         /**
1525                          * {@inheritDoc}
1526                          */
1527                         @Override
1528                         public void run() {
1529                                 markPostKnown(post);
1530                         }
1531                 }, "Mark " + post + " read.");
1532                 return post;
1533         }
1534
1535         /**
1536          * Deletes the given post.
1537          *
1538          * @param post
1539          *            The post to delete
1540          */
1541         public void deletePost(Post post) {
1542                 if (!isLocalSone(post.getSone())) {
1543                         logger.log(Level.WARNING, "Tried to delete post of non-local Sone: %s", post.getSone());
1544                         return;
1545                 }
1546                 post.getSone().removePost(post);
1547                 synchronized (posts) {
1548                         posts.remove(post.getId());
1549                 }
1550                 coreListenerManager.firePostRemoved(post);
1551                 synchronized (newPosts) {
1552                         markPostKnown(post);
1553                         knownPosts.remove(post.getId());
1554                 }
1555                 saveSone(post.getSone());
1556         }
1557
1558         /**
1559          * Marks the given post as known, if it is currently a new post (according
1560          * to {@link #isNewPost(String)}).
1561          *
1562          * @param post
1563          *            The post to mark as known
1564          */
1565         public void markPostKnown(Post post) {
1566                 synchronized (newPosts) {
1567                         if (newPosts.remove(post.getId())) {
1568                                 knownPosts.add(post.getId());
1569                                 coreListenerManager.fireMarkPostKnown(post);
1570                                 saveConfiguration();
1571                         }
1572                 }
1573         }
1574
1575         /**
1576          * Bookmarks the given post.
1577          *
1578          * @param post
1579          *            The post to bookmark
1580          */
1581         public void bookmark(Post post) {
1582                 bookmarkPost(post.getId());
1583         }
1584
1585         /**
1586          * Bookmarks the post with the given ID.
1587          *
1588          * @param id
1589          *            The ID of the post to bookmark
1590          */
1591         public void bookmarkPost(String id) {
1592                 synchronized (bookmarkedPosts) {
1593                         bookmarkedPosts.add(id);
1594                 }
1595         }
1596
1597         /**
1598          * Removes the given post from the bookmarks.
1599          *
1600          * @param post
1601          *            The post to unbookmark
1602          */
1603         public void unbookmark(Post post) {
1604                 unbookmarkPost(post.getId());
1605         }
1606
1607         /**
1608          * Removes the post with the given ID from the bookmarks.
1609          *
1610          * @param id
1611          *            The ID of the post to unbookmark
1612          */
1613         public void unbookmarkPost(String id) {
1614                 synchronized (bookmarkedPosts) {
1615                         bookmarkedPosts.remove(id);
1616                 }
1617         }
1618
1619         /**
1620          * Creates a new reply.
1621          *
1622          * @param sone
1623          *            The Sone that creates the reply
1624          * @param post
1625          *            The post that this reply refers to
1626          * @param text
1627          *            The text of the reply
1628          * @return The created reply
1629          */
1630         public Reply createReply(Sone sone, Post post, String text) {
1631                 return createReply(sone, post, System.currentTimeMillis(), text);
1632         }
1633
1634         /**
1635          * Creates a new reply.
1636          *
1637          * @param sone
1638          *            The Sone that creates the reply
1639          * @param post
1640          *            The post that this reply refers to
1641          * @param time
1642          *            The time of the reply
1643          * @param text
1644          *            The text of the reply
1645          * @return The created reply
1646          */
1647         public Reply createReply(Sone sone, Post post, long time, String text) {
1648                 if (!isLocalSone(sone)) {
1649                         logger.log(Level.FINE, "Tried to create reply for non-local Sone: %s", sone);
1650                         return null;
1651                 }
1652                 final Reply reply = new Reply(sone, post, System.currentTimeMillis(), text);
1653                 synchronized (replies) {
1654                         replies.put(reply.getId(), reply);
1655                 }
1656                 synchronized (newReplies) {
1657                         newReplies.add(reply.getId());
1658                         coreListenerManager.fireNewReplyFound(reply);
1659                 }
1660                 sone.addReply(reply);
1661                 saveSone(sone);
1662                 localElementTicker.registerEvent(System.currentTimeMillis() + 10 * 1000, new Runnable() {
1663
1664                         /**
1665                          * {@inheritDoc}
1666                          */
1667                         @Override
1668                         public void run() {
1669                                 markReplyKnown(reply);
1670                         }
1671                 }, "Mark " + reply + " read.");
1672                 return reply;
1673         }
1674
1675         /**
1676          * Deletes the given reply.
1677          *
1678          * @param reply
1679          *            The reply to delete
1680          */
1681         public void deleteReply(Reply reply) {
1682                 Sone sone = reply.getSone();
1683                 if (!isLocalSone(sone)) {
1684                         logger.log(Level.FINE, "Tried to delete non-local reply: %s", reply);
1685                         return;
1686                 }
1687                 synchronized (replies) {
1688                         replies.remove(reply.getId());
1689                 }
1690                 synchronized (newReplies) {
1691                         markReplyKnown(reply);
1692                         knownReplies.remove(reply.getId());
1693                 }
1694                 sone.removeReply(reply);
1695                 saveSone(sone);
1696         }
1697
1698         /**
1699          * Marks the given reply as known, if it is currently a new reply (according
1700          * to {@link #isNewReply(String)}).
1701          *
1702          * @param reply
1703          *            The reply to mark as known
1704          */
1705         public void markReplyKnown(Reply reply) {
1706                 synchronized (newReplies) {
1707                         if (newReplies.remove(reply.getId())) {
1708                                 knownReplies.add(reply.getId());
1709                                 coreListenerManager.fireMarkReplyKnown(reply);
1710                                 saveConfiguration();
1711                         }
1712                 }
1713         }
1714
1715         /**
1716          * Starts the core.
1717          */
1718         public void start() {
1719                 loadConfiguration();
1720                 updateChecker.addUpdateListener(this);
1721                 updateChecker.start();
1722         }
1723
1724         /**
1725          * Stops the core.
1726          */
1727         public void stop() {
1728                 synchronized (localSones) {
1729                         for (SoneInserter soneInserter : soneInserters.values()) {
1730                                 soneInserter.stop();
1731                         }
1732                         for (Sone localSone : localSones.values()) {
1733                                 saveSone(localSone);
1734                         }
1735                 }
1736                 updateChecker.stop();
1737                 updateChecker.removeUpdateListener(this);
1738                 soneDownloader.stop();
1739                 saveConfiguration();
1740                 stopped = true;
1741         }
1742
1743         /**
1744          * Saves the current options.
1745          */
1746         public void saveConfiguration() {
1747                 synchronized (configuration) {
1748                         if (storingConfiguration) {
1749                                 logger.log(Level.FINE, "Already storing configuration…");
1750                                 return;
1751                         }
1752                         storingConfiguration = true;
1753                 }
1754
1755                 /* store the options first. */
1756                 try {
1757                         configuration.getIntValue("Option/ConfigurationVersion").setValue(0);
1758                         configuration.getIntValue("Option/InsertionDelay").setValue(options.getIntegerOption("InsertionDelay").getReal());
1759                         configuration.getIntValue("Option/PostsPerPage").setValue(options.getIntegerOption("PostsPerPage").getReal());
1760                         configuration.getBooleanValue("Option/RequireFullAccess").setValue(options.getBooleanOption("RequireFullAccess").getReal());
1761                         configuration.getIntValue("Option/PositiveTrust").setValue(options.getIntegerOption("PositiveTrust").getReal());
1762                         configuration.getIntValue("Option/NegativeTrust").setValue(options.getIntegerOption("NegativeTrust").getReal());
1763                         configuration.getStringValue("Option/TrustComment").setValue(options.getStringOption("TrustComment").getReal());
1764                         configuration.getBooleanValue("Option/ActivateFcpInterface").setValue(options.getBooleanOption("ActivateFcpInterface").getReal());
1765                         configuration.getIntValue("Option/FcpFullAccessRequired").setValue(options.getIntegerOption("FcpFullAccessRequired").getReal());
1766                         configuration.getBooleanValue("Option/SoneRescueMode").setValue(options.getBooleanOption("SoneRescueMode").getReal());
1767                         configuration.getBooleanValue("Option/ClearOnNextRestart").setValue(options.getBooleanOption("ClearOnNextRestart").getReal());
1768                         configuration.getBooleanValue("Option/ReallyClearOnNextRestart").setValue(options.getBooleanOption("ReallyClearOnNextRestart").getReal());
1769
1770                         /* save known Sones. */
1771                         int soneCounter = 0;
1772                         synchronized (newSones) {
1773                                 for (String knownSoneId : knownSones) {
1774                                         configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").setValue(knownSoneId);
1775                                 }
1776                                 configuration.getStringValue("KnownSone/" + soneCounter + "/ID").setValue(null);
1777                         }
1778
1779                         /* save known posts. */
1780                         int postCounter = 0;
1781                         synchronized (newPosts) {
1782                                 for (String knownPostId : knownPosts) {
1783                                         configuration.getStringValue("KnownPosts/" + postCounter++ + "/ID").setValue(knownPostId);
1784                                 }
1785                                 configuration.getStringValue("KnownPosts/" + postCounter + "/ID").setValue(null);
1786                         }
1787
1788                         /* save known replies. */
1789                         int replyCounter = 0;
1790                         synchronized (newReplies) {
1791                                 for (String knownReplyId : knownReplies) {
1792                                         configuration.getStringValue("KnownReplies/" + replyCounter++ + "/ID").setValue(knownReplyId);
1793                                 }
1794                                 configuration.getStringValue("KnownReplies/" + replyCounter + "/ID").setValue(null);
1795                         }
1796
1797                         /* save bookmarked posts. */
1798                         int bookmarkedPostCounter = 0;
1799                         synchronized (bookmarkedPosts) {
1800                                 for (String bookmarkedPostId : bookmarkedPosts) {
1801                                         configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").setValue(bookmarkedPostId);
1802                                 }
1803                         }
1804                         configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").setValue(null);
1805
1806                         /* now save it. */
1807                         configuration.save();
1808
1809                 } catch (ConfigurationException ce1) {
1810                         logger.log(Level.SEVERE, "Could not store configuration!", ce1);
1811                 } finally {
1812                         synchronized (configuration) {
1813                                 storingConfiguration = false;
1814                         }
1815                 }
1816         }
1817
1818         //
1819         // PRIVATE METHODS
1820         //
1821
1822         /**
1823          * Loads the configuration.
1824          */
1825         @SuppressWarnings("unchecked")
1826         private void loadConfiguration() {
1827                 /* create options. */
1828                 options.addIntegerOption("InsertionDelay", new DefaultOption<Integer>(60, new IntegerRangeValidator(0, Integer.MAX_VALUE), new OptionWatcher<Integer>() {
1829
1830                         @Override
1831                         public void optionChanged(Option<Integer> option, Integer oldValue, Integer newValue) {
1832                                 SoneInserter.setInsertionDelay(newValue);
1833                         }
1834
1835                 }));
1836                 options.addIntegerOption("PostsPerPage", new DefaultOption<Integer>(10, new IntegerRangeValidator(1, Integer.MAX_VALUE)));
1837                 options.addBooleanOption("RequireFullAccess", new DefaultOption<Boolean>(false));
1838                 options.addIntegerOption("PositiveTrust", new DefaultOption<Integer>(75, new IntegerRangeValidator(0, 100)));
1839                 options.addIntegerOption("NegativeTrust", new DefaultOption<Integer>(-25, new IntegerRangeValidator(-100, 100)));
1840                 options.addStringOption("TrustComment", new DefaultOption<String>("Set from Sone Web Interface"));
1841                 options.addBooleanOption("ActivateFcpInterface", new DefaultOption<Boolean>(false, new OptionWatcher<Boolean>() {
1842
1843                         @Override
1844                         @SuppressWarnings("synthetic-access")
1845                         public void optionChanged(Option<Boolean> option, Boolean oldValue, Boolean newValue) {
1846                                 fcpInterface.setActive(newValue);
1847                         }
1848                 }));
1849                 options.addIntegerOption("FcpFullAccessRequired", new DefaultOption<Integer>(2, new OptionWatcher<Integer>() {
1850
1851                         @Override
1852                         @SuppressWarnings("synthetic-access")
1853                         public void optionChanged(Option<Integer> option, Integer oldValue, Integer newValue) {
1854                                 fcpInterface.setFullAccessRequired(FullAccessRequired.values()[newValue]);
1855                         }
1856
1857                 }));
1858                 options.addBooleanOption("SoneRescueMode", new DefaultOption<Boolean>(false));
1859                 options.addBooleanOption("ClearOnNextRestart", new DefaultOption<Boolean>(false));
1860                 options.addBooleanOption("ReallyClearOnNextRestart", new DefaultOption<Boolean>(false));
1861
1862                 /* read options from configuration. */
1863                 options.getBooleanOption("ClearOnNextRestart").set(configuration.getBooleanValue("Option/ClearOnNextRestart").getValue(null));
1864                 options.getBooleanOption("ReallyClearOnNextRestart").set(configuration.getBooleanValue("Option/ReallyClearOnNextRestart").getValue(null));
1865                 boolean clearConfiguration = options.getBooleanOption("ClearOnNextRestart").get() && options.getBooleanOption("ReallyClearOnNextRestart").get();
1866                 options.getBooleanOption("ClearOnNextRestart").set(null);
1867                 options.getBooleanOption("ReallyClearOnNextRestart").set(null);
1868                 if (clearConfiguration) {
1869                         /* stop loading the configuration. */
1870                         return;
1871                 }
1872
1873                 loadConfigurationValue("InsertionDelay");
1874                 loadConfigurationValue("PostsPerPage");
1875                 options.getBooleanOption("RequireFullAccess").set(configuration.getBooleanValue("Option/RequireFullAccess").getValue(null));
1876                 loadConfigurationValue("PositiveTrust");
1877                 loadConfigurationValue("NegativeTrust");
1878                 options.getStringOption("TrustComment").set(configuration.getStringValue("Option/TrustComment").getValue(null));
1879                 options.getBooleanOption("ActivateFcpInterface").set(configuration.getBooleanValue("Option/ActivateFcpInterface").getValue(null));
1880                 options.getIntegerOption("FcpFullAccessRequired").set(configuration.getIntValue("Option/FcpFullAccessRequired").getValue(null));
1881                 options.getBooleanOption("SoneRescueMode").set(configuration.getBooleanValue("Option/SoneRescueMode").getValue(null));
1882
1883                 /* load known Sones. */
1884                 int soneCounter = 0;
1885                 while (true) {
1886                         String knownSoneId = configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").getValue(null);
1887                         if (knownSoneId == null) {
1888                                 break;
1889                         }
1890                         synchronized (newSones) {
1891                                 knownSones.add(knownSoneId);
1892                         }
1893                 }
1894
1895                 /* load known posts. */
1896                 int postCounter = 0;
1897                 while (true) {
1898                         String knownPostId = configuration.getStringValue("KnownPosts/" + postCounter++ + "/ID").getValue(null);
1899                         if (knownPostId == null) {
1900                                 break;
1901                         }
1902                         synchronized (newPosts) {
1903                                 knownPosts.add(knownPostId);
1904                         }
1905                 }
1906
1907                 /* load known replies. */
1908                 int replyCounter = 0;
1909                 while (true) {
1910                         String knownReplyId = configuration.getStringValue("KnownReplies/" + replyCounter++ + "/ID").getValue(null);
1911                         if (knownReplyId == null) {
1912                                 break;
1913                         }
1914                         synchronized (newReplies) {
1915                                 knownReplies.add(knownReplyId);
1916                         }
1917                 }
1918
1919                 /* load bookmarked posts. */
1920                 int bookmarkedPostCounter = 0;
1921                 while (true) {
1922                         String bookmarkedPostId = configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").getValue(null);
1923                         if (bookmarkedPostId == null) {
1924                                 break;
1925                         }
1926                         synchronized (bookmarkedPosts) {
1927                                 bookmarkedPosts.add(bookmarkedPostId);
1928                         }
1929                 }
1930
1931         }
1932
1933         /**
1934          * Loads an {@link Integer} configuration value for the option with the
1935          * given name, logging validation failures.
1936          *
1937          * @param optionName
1938          *            The name of the option to load
1939          */
1940         private void loadConfigurationValue(String optionName) {
1941                 try {
1942                         options.getIntegerOption(optionName).set(configuration.getIntValue("Option/" + optionName).getValue(null));
1943                 } catch (IllegalArgumentException iae1) {
1944                         logger.log(Level.WARNING, "Invalid value for " + optionName + " in configuration, using default.");
1945                 }
1946         }
1947
1948         /**
1949          * Generate a Sone URI from the given URI and latest edition.
1950          *
1951          * @param uriString
1952          *            The URI to derive the Sone URI from
1953          * @return The derived URI
1954          */
1955         private FreenetURI getSoneUri(String uriString) {
1956                 try {
1957                         FreenetURI uri = new FreenetURI(uriString).setDocName("Sone").setMetaString(new String[0]);
1958                         return uri;
1959                 } catch (MalformedURLException mue1) {
1960                         logger.log(Level.WARNING, "Could not create Sone URI from URI: " + uriString, mue1);
1961                         return null;
1962                 }
1963         }
1964
1965         //
1966         // INTERFACE IdentityListener
1967         //
1968
1969         /**
1970          * {@inheritDoc}
1971          */
1972         @Override
1973         public void ownIdentityAdded(OwnIdentity ownIdentity) {
1974                 logger.log(Level.FINEST, "Adding OwnIdentity: " + ownIdentity);
1975                 if (ownIdentity.hasContext("Sone")) {
1976                         trustedIdentities.put(ownIdentity, Collections.synchronizedSet(new HashSet<Identity>()));
1977                         addLocalSone(ownIdentity);
1978                 }
1979         }
1980
1981         /**
1982          * {@inheritDoc}
1983          */
1984         @Override
1985         public void ownIdentityRemoved(OwnIdentity ownIdentity) {
1986                 logger.log(Level.FINEST, "Removing OwnIdentity: " + ownIdentity);
1987                 trustedIdentities.remove(ownIdentity);
1988         }
1989
1990         /**
1991          * {@inheritDoc}
1992          */
1993         @Override
1994         public void identityAdded(OwnIdentity ownIdentity, Identity identity) {
1995                 logger.log(Level.FINEST, "Adding Identity: " + identity);
1996                 trustedIdentities.get(ownIdentity).add(identity);
1997                 addRemoteSone(identity);
1998         }
1999
2000         /**
2001          * {@inheritDoc}
2002          */
2003         @Override
2004         public void identityUpdated(OwnIdentity ownIdentity, final Identity identity) {
2005                 new Thread(new Runnable() {
2006
2007                         @Override
2008                         @SuppressWarnings("synthetic-access")
2009                         public void run() {
2010                                 Sone sone = getRemoteSone(identity.getId());
2011                                 sone.setIdentity(identity);
2012                                 sone.setLatestEdition(Numbers.safeParseLong(identity.getProperty("Sone.LatestEdition"), sone.getLatestEdition()));
2013                                 soneDownloader.addSone(sone);
2014                                 soneDownloader.fetchSone(sone);
2015                         }
2016                 }).start();
2017         }
2018
2019         /**
2020          * {@inheritDoc}
2021          */
2022         @Override
2023         public void identityRemoved(OwnIdentity ownIdentity, Identity identity) {
2024                 trustedIdentities.get(ownIdentity).remove(identity);
2025                 boolean foundIdentity = false;
2026                 for (Entry<OwnIdentity, Set<Identity>> trustedIdentity : trustedIdentities.entrySet()) {
2027                         if (trustedIdentity.getKey().equals(ownIdentity)) {
2028                                 continue;
2029                         }
2030                         if (trustedIdentity.getValue().contains(identity)) {
2031                                 foundIdentity = true;
2032                         }
2033                 }
2034                 if (foundIdentity) {
2035                         /* some local identity still trusts this identity, don’t remove. */
2036                         return;
2037                 }
2038                 Sone sone = getSone(identity.getId(), false);
2039                 if (sone == null) {
2040                         /* TODO - we don’t have the Sone anymore. should this happen? */
2041                         return;
2042                 }
2043                 synchronized (posts) {
2044                         synchronized (newPosts) {
2045                                 for (Post post : sone.getPosts()) {
2046                                         posts.remove(post.getId());
2047                                         newPosts.remove(post.getId());
2048                                         coreListenerManager.firePostRemoved(post);
2049                                 }
2050                         }
2051                 }
2052                 synchronized (replies) {
2053                         synchronized (newReplies) {
2054                                 for (Reply reply : sone.getReplies()) {
2055                                         replies.remove(reply.getId());
2056                                         newReplies.remove(reply.getId());
2057                                         coreListenerManager.fireReplyRemoved(reply);
2058                                 }
2059                         }
2060                 }
2061                 synchronized (remoteSones) {
2062                         remoteSones.remove(identity.getId());
2063                 }
2064                 synchronized (newSones) {
2065                         newSones.remove(identity.getId());
2066                         coreListenerManager.fireSoneRemoved(sone);
2067                 }
2068         }
2069
2070         //
2071         // INTERFACE UpdateListener
2072         //
2073
2074         /**
2075          * {@inheritDoc}
2076          */
2077         @Override
2078         public void updateFound(Version version, long releaseTime, long latestEdition) {
2079                 coreListenerManager.fireUpdateFound(version, releaseTime, latestEdition);
2080         }
2081
2082         /**
2083          * Convenience interface for external classes that want to access the core’s
2084          * configuration.
2085          *
2086          * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
2087          */
2088         public static class Preferences {
2089
2090                 /** The wrapped options. */
2091                 private final Options options;
2092
2093                 /**
2094                  * Creates a new preferences object wrapped around the given options.
2095                  *
2096                  * @param options
2097                  *            The options to wrap
2098                  */
2099                 public Preferences(Options options) {
2100                         this.options = options;
2101                 }
2102
2103                 /**
2104                  * Returns the insertion delay.
2105                  *
2106                  * @return The insertion delay
2107                  */
2108                 public int getInsertionDelay() {
2109                         return options.getIntegerOption("InsertionDelay").get();
2110                 }
2111
2112                 /**
2113                  * Validates the given insertion delay.
2114                  *
2115                  * @param insertionDelay
2116                  *            The insertion delay to validate
2117                  * @return {@code true} if the given insertion delay was valid, {@code
2118                  *         false} otherwise
2119                  */
2120                 public boolean validateInsertionDelay(Integer insertionDelay) {
2121                         return options.getIntegerOption("InsertionDelay").validate(insertionDelay);
2122                 }
2123
2124                 /**
2125                  * Sets the insertion delay
2126                  *
2127                  * @param insertionDelay
2128                  *            The new insertion delay, or {@code null} to restore it to
2129                  *            the default value
2130                  * @return This preferences
2131                  */
2132                 public Preferences setInsertionDelay(Integer insertionDelay) {
2133                         options.getIntegerOption("InsertionDelay").set(insertionDelay);
2134                         return this;
2135                 }
2136
2137                 /**
2138                  * Returns the number of posts to show per page.
2139                  *
2140                  * @return The number of posts to show per page
2141                  */
2142                 public int getPostsPerPage() {
2143                         return options.getIntegerOption("PostsPerPage").get();
2144                 }
2145
2146                 /**
2147                  * Validates the number of posts per page.
2148                  *
2149                  * @param postsPerPage
2150                  *            The number of posts per page
2151                  * @return {@code true} if the number of posts per page was valid,
2152                  *         {@code false} otherwise
2153                  */
2154                 public boolean validatePostsPerPage(Integer postsPerPage) {
2155                         return options.getIntegerOption("PostsPerPage").validate(postsPerPage);
2156                 }
2157
2158                 /**
2159                  * Sets the number of posts to show per page.
2160                  *
2161                  * @param postsPerPage
2162                  *            The number of posts to show per page
2163                  * @return This preferences object
2164                  */
2165                 public Preferences setPostsPerPage(Integer postsPerPage) {
2166                         options.getIntegerOption("PostsPerPage").set(postsPerPage);
2167                         return this;
2168                 }
2169
2170                 /**
2171                  * Returns whether Sone requires full access to be even visible.
2172                  *
2173                  * @return {@code true} if Sone requires full access, {@code false}
2174                  *         otherwise
2175                  */
2176                 public boolean isRequireFullAccess() {
2177                         return options.getBooleanOption("RequireFullAccess").get();
2178                 }
2179
2180                 /**
2181                  * Sets whether Sone requires full access to be even visible.
2182                  *
2183                  * @param requireFullAccess
2184                  *            {@code true} if Sone requires full access, {@code false}
2185                  *            otherwise
2186                  */
2187                 public void setRequireFullAccess(Boolean requireFullAccess) {
2188                         options.getBooleanOption("RequireFullAccess").set(requireFullAccess);
2189                 }
2190
2191                 /**
2192                  * Returns the positive trust.
2193                  *
2194                  * @return The positive trust
2195                  */
2196                 public int getPositiveTrust() {
2197                         return options.getIntegerOption("PositiveTrust").get();
2198                 }
2199
2200                 /**
2201                  * Validates the positive trust.
2202                  *
2203                  * @param positiveTrust
2204                  *            The positive trust to validate
2205                  * @return {@code true} if the positive trust was valid, {@code false}
2206                  *         otherwise
2207                  */
2208                 public boolean validatePositiveTrust(Integer positiveTrust) {
2209                         return options.getIntegerOption("PositiveTrust").validate(positiveTrust);
2210                 }
2211
2212                 /**
2213                  * Sets the positive trust.
2214                  *
2215                  * @param positiveTrust
2216                  *            The new positive trust, or {@code null} to restore it to
2217                  *            the default vlaue
2218                  * @return This preferences
2219                  */
2220                 public Preferences setPositiveTrust(Integer positiveTrust) {
2221                         options.getIntegerOption("PositiveTrust").set(positiveTrust);
2222                         return this;
2223                 }
2224
2225                 /**
2226                  * Returns the negative trust.
2227                  *
2228                  * @return The negative trust
2229                  */
2230                 public int getNegativeTrust() {
2231                         return options.getIntegerOption("NegativeTrust").get();
2232                 }
2233
2234                 /**
2235                  * Validates the negative trust.
2236                  *
2237                  * @param negativeTrust
2238                  *            The negative trust to validate
2239                  * @return {@code true} if the negative trust was valid, {@code false}
2240                  *         otherwise
2241                  */
2242                 public boolean validateNegativeTrust(Integer negativeTrust) {
2243                         return options.getIntegerOption("NegativeTrust").validate(negativeTrust);
2244                 }
2245
2246                 /**
2247                  * Sets the negative trust.
2248                  *
2249                  * @param negativeTrust
2250                  *            The negative trust, or {@code null} to restore it to the
2251                  *            default value
2252                  * @return The preferences
2253                  */
2254                 public Preferences setNegativeTrust(Integer negativeTrust) {
2255                         options.getIntegerOption("NegativeTrust").set(negativeTrust);
2256                         return this;
2257                 }
2258
2259                 /**
2260                  * Returns the trust comment. This is the comment that is set in the web
2261                  * of trust when a trust value is assigned to an identity.
2262                  *
2263                  * @return The trust comment
2264                  */
2265                 public String getTrustComment() {
2266                         return options.getStringOption("TrustComment").get();
2267                 }
2268
2269                 /**
2270                  * Sets the trust comment.
2271                  *
2272                  * @param trustComment
2273                  *            The trust comment, or {@code null} to restore it to the
2274                  *            default value
2275                  * @return This preferences
2276                  */
2277                 public Preferences setTrustComment(String trustComment) {
2278                         options.getStringOption("TrustComment").set(trustComment);
2279                         return this;
2280                 }
2281
2282                 /**
2283                  * Returns whether the {@link FcpInterface FCP interface} is currently
2284                  * active.
2285                  *
2286                  * @see FcpInterface#setActive(boolean)
2287                  * @return {@code true} if the FCP interface is currently active,
2288                  *         {@code false} otherwise
2289                  */
2290                 public boolean isFcpInterfaceActive() {
2291                         return options.getBooleanOption("ActivateFcpInterface").get();
2292                 }
2293
2294                 /**
2295                  * Sets whether the {@link FcpInterface FCP interface} is currently
2296                  * active.
2297                  *
2298                  * @see FcpInterface#setActive(boolean)
2299                  * @param fcpInterfaceActive
2300                  *            {@code true} to activate the FCP interface, {@code false}
2301                  *            to deactivate the FCP interface
2302                  * @return This preferences object
2303                  */
2304                 public Preferences setFcpInterfaceActive(boolean fcpInterfaceActive) {
2305                         options.getBooleanOption("ActivateFcpInterface").set(fcpInterfaceActive);
2306                         return this;
2307                 }
2308
2309                 /**
2310                  * Returns the action level for which full access to the FCP interface
2311                  * is required.
2312                  *
2313                  * @return The action level for which full access to the FCP interface
2314                  *         is required
2315                  */
2316                 public FullAccessRequired getFcpFullAccessRequired() {
2317                         return FullAccessRequired.values()[options.getIntegerOption("FcpFullAccessRequired").get()];
2318                 }
2319
2320                 /**
2321                  * Sets the action level for which full access to the FCP interface is
2322                  * required
2323                  *
2324                  * @param fcpFullAccessRequired
2325                  *            The action level
2326                  * @return This preferences
2327                  */
2328                 public Preferences setFcpFullAccessRequired(FullAccessRequired fcpFullAccessRequired) {
2329                         options.getIntegerOption("FcpFullAccessRequired").set((fcpFullAccessRequired != null) ? fcpFullAccessRequired.ordinal() : null);
2330                         return this;
2331                 }
2332
2333                 /**
2334                  * Returns whether the rescue mode is active.
2335                  *
2336                  * @return {@code true} if the rescue mode is active, {@code false}
2337                  *         otherwise
2338                  */
2339                 public boolean isSoneRescueMode() {
2340                         return options.getBooleanOption("SoneRescueMode").get();
2341                 }
2342
2343                 /**
2344                  * Sets whether the rescue mode is active.
2345                  *
2346                  * @param soneRescueMode
2347                  *            {@code true} if the rescue mode is active, {@code false}
2348                  *            otherwise
2349                  * @return This preferences
2350                  */
2351                 public Preferences setSoneRescueMode(Boolean soneRescueMode) {
2352                         options.getBooleanOption("SoneRescueMode").set(soneRescueMode);
2353                         return this;
2354                 }
2355
2356                 /**
2357                  * Returns whether Sone should clear its settings on the next restart.
2358                  * In order to be effective, {@link #isReallyClearOnNextRestart()} needs
2359                  * to return {@code true} as well!
2360                  *
2361                  * @return {@code true} if Sone should clear its settings on the next
2362                  *         restart, {@code false} otherwise
2363                  */
2364                 public boolean isClearOnNextRestart() {
2365                         return options.getBooleanOption("ClearOnNextRestart").get();
2366                 }
2367
2368                 /**
2369                  * Sets whether Sone will clear its settings on the next restart.
2370                  *
2371                  * @param clearOnNextRestart
2372                  *            {@code true} if Sone should clear its settings on the next
2373                  *            restart, {@code false} otherwise
2374                  * @return This preferences
2375                  */
2376                 public Preferences setClearOnNextRestart(Boolean clearOnNextRestart) {
2377                         options.getBooleanOption("ClearOnNextRestart").set(clearOnNextRestart);
2378                         return this;
2379                 }
2380
2381                 /**
2382                  * Returns whether Sone should really clear its settings on next
2383                  * restart. This is a confirmation option that needs to be set in
2384                  * addition to {@link #isClearOnNextRestart()} in order to clear Sone’s
2385                  * settings on the next restart.
2386                  *
2387                  * @return {@code true} if Sone should really clear its settings on the
2388                  *         next restart, {@code false} otherwise
2389                  */
2390                 public boolean isReallyClearOnNextRestart() {
2391                         return options.getBooleanOption("ReallyClearOnNextRestart").get();
2392                 }
2393
2394                 /**
2395                  * Sets whether Sone should really clear its settings on the next
2396                  * restart.
2397                  *
2398                  * @param reallyClearOnNextRestart
2399                  *            {@code true} if Sone should really clear its settings on
2400                  *            the next restart, {@code false} otherwise
2401                  * @return This preferences
2402                  */
2403                 public Preferences setReallyClearOnNextRestart(Boolean reallyClearOnNextRestart) {
2404                         options.getBooleanOption("ReallyClearOnNextRestart").set(reallyClearOnNextRestart);
2405                         return this;
2406                 }
2407
2408         }
2409
2410 }