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.logging.Level;
  29 import java.util.logging.Logger;
  30
  31 import net.pterodactylus.sone.core.Options.DefaultOption;
  32 import net.pterodactylus.sone.core.Options.Option;
  33 import net.pterodactylus.sone.core.Options.OptionWatcher;
  34 import net.pterodactylus.sone.data.Client;
  35 import net.pterodactylus.sone.data.Post;
  36 import net.pterodactylus.sone.data.Profile;
  37 import net.pterodactylus.sone.data.Reply;
  38 import net.pterodactylus.sone.data.Sone;
  39 import net.pterodactylus.sone.freenet.wot.Identity;
  40 import net.pterodactylus.sone.freenet.wot.IdentityListener;
  41 import net.pterodactylus.sone.freenet.wot.IdentityManager;
  42 import net.pterodactylus.sone.freenet.wot.OwnIdentity;
  43 import net.pterodactylus.sone.main.SonePlugin;
  44 import net.pterodactylus.util.config.Configuration;
  45 import net.pterodactylus.util.config.ConfigurationException;
  46 import net.pterodactylus.util.logging.Logging;
  47 import net.pterodactylus.util.number.Numbers;
  48 import freenet.keys.FreenetURI;
  49
  50 /**
  51  * The Sone core.
  52  *
  53  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  54  */
  55 public class Core implements IdentityListener {
  56
  57         /**
  58          * Enumeration for the possible states of a {@link Sone}.
  59          *
  60          * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  61          */
  62         public enum SoneStatus {
  63
  64                 /** The Sone is unknown, i.e. not yet downloaded. */
  65                 unknown,
  66
  67                 /** The Sone is idle, i.e. not being downloaded or inserted. */
  68                 idle,
  69
  70                 /** The Sone is currently being inserted. */
  71                 inserting,
  72
  73                 /** The Sone is currently being downloaded. */
  74                 downloading,
  75         }
  76
  77         /** The logger. */
  78         private static final Logger logger = Logging.getLogger(Core.class);
  79
  80         /** The options. */
  81         private final Options options = new Options();
  82
  83         /** The core listener manager. */
  84         private final CoreListenerManager coreListenerManager = new CoreListenerManager(this);
  85
  86         /** The configuration. */
  87         private Configuration configuration;
  88
  89         /** Whether we’re currently saving the configuration. */
  90         private boolean storingConfiguration = false;
  91
  92         /** The identity manager. */
  93         private final IdentityManager identityManager;
  94
  95         /** Interface to freenet. */
  96         private final FreenetInterface freenetInterface;
  97
  98         /** The Sone downloader. */
  99         private final SoneDownloader soneDownloader;
 100
 101         /** Whether the core has been stopped. */
 102         private volatile boolean stopped;
 103
 104         /** The Sones’ statuses. */
 105         /* synchronize access on itself. */
 106         private final Map<Sone, SoneStatus> soneStatuses = new HashMap<Sone, SoneStatus>();
 107
 108         /** Locked local Sones. */
 109         /* synchronize on itself. */
 110         private final Set<Sone> lockedSones = new HashSet<Sone>();
 111
 112         /** Sone inserters. */
 113         /* synchronize access on this on localSones. */
 114         private final Map<Sone, SoneInserter> soneInserters = new HashMap<Sone, SoneInserter>();
 115
 116         /** All local Sones. */
 117         /* synchronize access on this on itself. */
 118         private Map<String, Sone> localSones = new HashMap<String, Sone>();
 119
 120         /** All remote Sones. */
 121         /* synchronize access on this on itself. */
 122         private Map<String, Sone> remoteSones = new HashMap<String, Sone>();
 123
 124         /** All new Sones. */
 125         private Set<String> newSones = new HashSet<String>();
 126
 127         /** All known Sones. */
 128         /* synchronize access on {@link #newSones}. */
 129         private Set<String> knownSones = new HashSet<String>();
 130
 131         /** All posts. */
 132         private Map<String, Post> posts = new HashMap<String, Post>();
 133
 134         /** All new posts. */
 135         private Set<String> newPosts = new HashSet<String>();
 136
 137         /** All known posts. */
 138         /* synchronize access on {@link #newPosts}. */
 139         private Set<String> knownPosts = new HashSet<String>();
 140
 141         /** All replies. */
 142         private Map<String, Reply> replies = new HashMap<String, Reply>();
 143
 144         /** All new replies. */
 145         private Set<String> newReplies = new HashSet<String>();
 146
 147         /** All known replies. */
 148         private Set<String> knownReplies = new HashSet<String>();
 149
 150         /**
 151          * Creates a new core.
 152          *
 153          * @param configuration
 154          *            The configuration of the core
 155          * @param freenetInterface
 156          *            The freenet interface
 157          * @param identityManager
 158          *            The identity manager
 159          */
 160         public Core(Configuration configuration, FreenetInterface freenetInterface, IdentityManager identityManager) {
 161                 this.configuration = configuration;
 162                 this.freenetInterface = freenetInterface;
 163                 this.identityManager = identityManager;
 164                 this.soneDownloader = new SoneDownloader(this, freenetInterface);
 165         }
 166
 167         //
 168         // LISTENER MANAGEMENT
 169         //
 170
 171         /**
 172          * Adds a new core listener.
 173          *
 174          * @param coreListener
 175          *            The listener to add
 176          */
 177         public void addCoreListener(CoreListener coreListener) {
 178                 coreListenerManager.addListener(coreListener);
 179         }
 180
 181         /**
 182          * Removes a core listener.
 183          *
 184          * @param coreListener
 185          *            The listener to remove
 186          */
 187         public void removeCoreListener(CoreListener coreListener) {
 188                 coreListenerManager.removeListener(coreListener);
 189         }
 190
 191         //
 192         // ACCESSORS
 193         //
 194
 195         /**
 196          * Sets the configuration to use. This will automatically save the current
 197          * configuration to the given configuration.
 198          *
 199          * @param configuration
 200          *            The new configuration to use
 201          */
 202         public void setConfiguration(Configuration configuration) {
 203                 this.configuration = configuration;
 204                 saveConfiguration();
 205         }
 206
 207         /**
 208          * Returns the options used by the core.
 209          *
 210          * @return The options of the core
 211          */
 212         public Options getOptions() {
 213                 return options;
 214         }
 215
 216         /**
 217          * Returns whether the “Sone rescue mode” is currently activated.
 218          *
 219          * @return {@code true} if the “Sone rescue mode” is currently activated,
 220          *         {@code false} if it is not
 221          */
 222         public boolean isSoneRescueMode() {
 223                 return options.getBooleanOption("SoneRescueMode").get();
 224         }
 225
 226         /**
 227          * Returns the identity manager used by the core.
 228          *
 229          * @return The identity manager
 230          */
 231         public IdentityManager getIdentityManager() {
 232                 return identityManager;
 233         }
 234
 235         /**
 236          * Returns the status of the given Sone.
 237          *
 238          * @param sone
 239          *            The Sone to get the status for
 240          * @return The status of the Sone
 241          */
 242         public SoneStatus getSoneStatus(Sone sone) {
 243                 synchronized (soneStatuses) {
 244                         return soneStatuses.get(sone);
 245                 }
 246         }
 247
 248         /**
 249          * Sets the status of the given Sone.
 250          *
 251          * @param sone
 252          *            The Sone to set the status of
 253          * @param soneStatus
 254          *            The status to set
 255          */
 256         public void setSoneStatus(Sone sone, SoneStatus soneStatus) {
 257                 synchronized (soneStatuses) {
 258                         soneStatuses.put(sone, soneStatus);
 259                 }
 260         }
 261
 262         /**
 263          * Returns whether the given Sone is currently locked.
 264          *
 265          * @param sone
 266          *            The sone to check
 267          * @return {@code true} if the Sone is locked, {@code false} if it is not
 268          */
 269         public boolean isLocked(Sone sone) {
 270                 synchronized (lockedSones) {
 271                         return lockedSones.contains(sone);
 272                 }
 273         }
 274
 275         /**
 276          * Returns all Sones, remote and local.
 277          *
 278          * @return All Sones
 279          */
 280         public Set<Sone> getSones() {
 281                 Set<Sone> allSones = new HashSet<Sone>();
 282                 allSones.addAll(getLocalSones());
 283                 allSones.addAll(getRemoteSones());
 284                 return allSones;
 285         }
 286
 287         /**
 288          * Returns the Sone with the given ID, regardless whether it’s local or
 289          * remote.
 290          *
 291          * @param id
 292          *            The ID of the Sone to get
 293          * @return The Sone with the given ID, or {@code null} if there is no such
 294          *         Sone
 295          */
 296         public Sone getSone(String id) {
 297                 return getSone(id, true);
 298         }
 299
 300         /**
 301          * Returns the Sone with the given ID, regardless whether it’s local or
 302          * remote.
 303          *
 304          * @param id
 305          *            The ID of the Sone to get
 306          * @param create
 307          *            {@code true} to create a new Sone if none exists,
 308          *            {@code false} to return {@code null} if a Sone with the given
 309          *            ID does not exist
 310          * @return The Sone with the given ID, or {@code null} if there is no such
 311          *         Sone
 312          */
 313         public Sone getSone(String id, boolean create) {
 314                 if (isLocalSone(id)) {
 315                         return getLocalSone(id);
 316                 }
 317                 return getRemoteSone(id, create);
 318         }
 319
 320         /**
 321          * Checks whether the core knows a Sone with the given ID.
 322          *
 323          * @param id
 324          *            The ID of the Sone
 325          * @return {@code true} if there is a Sone with the given ID, {@code false}
 326          *         otherwise
 327          */
 328         public boolean hasSone(String id) {
 329                 return isLocalSone(id) || isRemoteSone(id);
 330         }
 331
 332         /**
 333          * Returns whether the given Sone is a local Sone.
 334          *
 335          * @param sone
 336          *            The Sone to check for its locality
 337          * @return {@code true} if the given Sone is local, {@code false} otherwise
 338          */
 339         public boolean isLocalSone(Sone sone) {
 340                 synchronized (localSones) {
 341                         return localSones.containsKey(sone.getId());
 342                 }
 343         }
 344
 345         /**
 346          * Returns whether the given ID is the ID of a local Sone.
 347          *
 348          * @param id
 349          *            The Sone ID to check for its locality
 350          * @return {@code true} if the given ID is a local Sone, {@code false}
 351          *         otherwise
 352          */
 353         public boolean isLocalSone(String id) {
 354                 synchronized (localSones) {
 355                         return localSones.containsKey(id);
 356                 }
 357         }
 358
 359         /**
 360          * Returns all local Sones.
 361          *
 362          * @return All local Sones
 363          */
 364         public Set<Sone> getLocalSones() {
 365                 synchronized (localSones) {
 366                         return new HashSet<Sone>(localSones.values());
 367                 }
 368         }
 369
 370         /**
 371          * Returns the local Sone with the given ID.
 372          *
 373          * @param id
 374          *            The ID of the Sone to get
 375          * @return The Sone with the given ID
 376          */
 377         public Sone getLocalSone(String id) {
 378                 return getLocalSone(id, true);
 379         }
 380
 381         /**
 382          * Returns the local Sone with the given ID, optionally creating a new Sone.
 383          *
 384          * @param id
 385          *            The ID of the Sone
 386          * @param create
 387          *            {@code true} to create a new Sone if none exists,
 388          *            {@code false} to return null if none exists
 389          * @return The Sone with the given ID, or {@code null}
 390          */
 391         public Sone getLocalSone(String id, boolean create) {
 392                 synchronized (localSones) {
 393                         Sone sone = localSones.get(id);
 394                         if ((sone == null) && create) {
 395                                 sone = new Sone(id);
 396                                 localSones.put(id, sone);
 397                         }
 398                         return sone;
 399                 }
 400         }
 401
 402         /**
 403          * Returns all remote Sones.
 404          *
 405          * @return All remote Sones
 406          */
 407         public Set<Sone> getRemoteSones() {
 408                 synchronized (remoteSones) {
 409                         return new HashSet<Sone>(remoteSones.values());
 410                 }
 411         }
 412
 413         /**
 414          * Returns the remote Sone with the given ID.
 415          *
 416          * @param id
 417          *            The ID of the remote Sone to get
 418          * @return The Sone with the given ID
 419          */
 420         public Sone getRemoteSone(String id) {
 421                 return getRemoteSone(id, true);
 422         }
 423
 424         /**
 425          * Returns the remote Sone with the given ID.
 426          *
 427          * @param id
 428          *            The ID of the remote Sone to get
 429          * @param create
 430          *            {@code true} to always create a Sone, {@code false} to return
 431          *            {@code null} if no Sone with the given ID exists
 432          * @return The Sone with the given ID
 433          */
 434         public Sone getRemoteSone(String id, boolean create) {
 435                 synchronized (remoteSones) {
 436                         Sone sone = remoteSones.get(id);
 437                         if ((sone == null) && create) {
 438                                 sone = new Sone(id);
 439                                 remoteSones.put(id, sone);
 440                         }
 441                         return sone;
 442                 }
 443         }
 444
 445         /**
 446          * Returns whether the given Sone is a remote Sone.
 447          *
 448          * @param sone
 449          *            The Sone to check
 450          * @return {@code true} if the given Sone is a remote Sone, {@code false}
 451          *         otherwise
 452          */
 453         public boolean isRemoteSone(Sone sone) {
 454                 synchronized (remoteSones) {
 455                         return remoteSones.containsKey(sone.getId());
 456                 }
 457         }
 458
 459         /**
 460          * Returns whether the Sone with the given ID is a remote Sone.
 461          *
 462          * @param id
 463          *            The ID of the Sone to check
 464          * @return {@code true} if the Sone with the given ID is a remote Sone,
 465          *         {@code false} otherwise
 466          */
 467         public boolean isRemoteSone(String id) {
 468                 synchronized (remoteSones) {
 469                         return remoteSones.containsKey(id);
 470                 }
 471         }
 472
 473         /**
 474          * Returns whether the given Sone is a new Sone. After this check, the Sone
 475          * is marked as known, i.e. a second call with the same parameters will
 476          * always yield {@code false}.
 477          *
 478          * @param sone
 479          *            The sone to check for
 480          * @return {@code true} if the given Sone is new, false otherwise
 481          */
 482         public boolean isNewSone(Sone sone) {
 483                 synchronized (newSones) {
 484                         boolean isNew = !knownSones.contains(sone.getId()) && newSones.remove(sone.getId());
 485                         knownSones.add(sone.getId());
 486                         if (isNew) {
 487                                 coreListenerManager.fireMarkSoneKnown(sone);
 488                         }
 489                         return isNew;
 490                 }
 491         }
 492
 493         /**
 494          * Returns whether the given Sone has been modified.
 495          *
 496          * @param sone
 497          *            The Sone to check for modifications
 498          * @return {@code true} if a modification has been detected in the Sone,
 499          *         {@code false} otherwise
 500          */
 501         public boolean isModifiedSone(Sone sone) {
 502                 return (soneInserters.containsKey(sone)) ? soneInserters.get(sone).isModified() : false;
 503         }
 504
 505         /**
 506          * Returns the post with the given ID.
 507          *
 508          * @param postId
 509          *            The ID of the post to get
 510          * @return The post, or {@code null} if there is no such post
 511          */
 512         public Post getPost(String postId) {
 513                 return getPost(postId, true);
 514         }
 515
 516         /**
 517          * Returns the post with the given ID, optionally creating a new post.
 518          *
 519          * @param postId
 520          *            The ID of the post to get
 521          * @param create
 522          *            {@code true} it create a new post if no post with the given ID
 523          *            exists, {@code false} to return {@code null}
 524          * @return The post, or {@code null} if there is no such post
 525          */
 526         public Post getPost(String postId, boolean create) {
 527                 synchronized (posts) {
 528                         Post post = posts.get(postId);
 529                         if ((post == null) && create) {
 530                                 post = new Post(postId);
 531                                 posts.put(postId, post);
 532                         }
 533                         return post;
 534                 }
 535         }
 536
 537         /**
 538          * Returns whether the given post ID is new. After this method returns it is
 539          * marked a known post ID.
 540          *
 541          * @param postId
 542          *            The post ID
 543          * @return {@code true} if the post is considered to be new, {@code false}
 544          *         otherwise
 545          */
 546         public boolean isNewPost(String postId) {
 547                 return isNewPost(postId, true);
 548         }
 549
 550         /**
 551          * Returns whether the given post ID is new. If {@code markAsKnown} is
 552          * {@code true} then after this method returns the post ID is marked a known
 553          * post ID.
 554          *
 555          * @param postId
 556          *            The post ID
 557          * @param markAsKnown
 558          *            {@code true} to mark the post ID as known, {@code false} to
 559          *            not to mark it as known
 560          * @return {@code true} if the post is considered to be new, {@code false}
 561          *         otherwise
 562          */
 563         public boolean isNewPost(String postId, boolean markAsKnown) {
 564                 synchronized (newPosts) {
 565                         boolean isNew = !knownPosts.contains(postId) && newPosts.contains(postId);
 566                         if (markAsKnown) {
 567                                 Post post = getPost(postId, false);
 568                                 if (post != null) {
 569                                         markPostKnown(post);
 570                                 }
 571                         }
 572                         return isNew;
 573                 }
 574         }
 575
 576         /**
 577          * Returns the reply with the given ID. If there is no reply with the given
 578          * ID yet, a new one is created.
 579          *
 580          * @param replyId
 581          *            The ID of the reply to get
 582          * @return The reply
 583          */
 584         public Reply getReply(String replyId) {
 585                 return getReply(replyId, true);
 586         }
 587
 588         /**
 589          * Returns the reply with the given ID. If there is no reply with the given
 590          * ID yet, a new one is created, unless {@code create} is false in which
 591          * case {@code null} is returned.
 592          *
 593          * @param replyId
 594          *            The ID of the reply to get
 595          * @param create
 596          *            {@code true} to always return a {@link Reply}, {@code false}
 597          *            to return {@code null} if no reply can be found
 598          * @return The reply, or {@code null} if there is no such reply
 599          */
 600         public Reply getReply(String replyId, boolean create) {
 601                 synchronized (replies) {
 602                         Reply reply = replies.get(replyId);
 603                         if (create && (reply == null)) {
 604                                 reply = new Reply(replyId);
 605                                 replies.put(replyId, reply);
 606                         }
 607                         return reply;
 608                 }
 609         }
 610
 611         /**
 612          * Returns all replies for the given post, order ascending by time.
 613          *
 614          * @param post
 615          *            The post to get all replies for
 616          * @return All replies for the given post
 617          */
 618         public List<Reply> getReplies(Post post) {
 619                 Set<Sone> sones = getSones();
 620                 List<Reply> replies = new ArrayList<Reply>();
 621                 for (Sone sone : sones) {
 622                         for (Reply reply : sone.getReplies()) {
 623                                 if (reply.getPost().equals(post)) {
 624                                         replies.add(reply);
 625                                 }
 626                         }
 627                 }
 628                 Collections.sort(replies, Reply.TIME_COMPARATOR);
 629                 return replies;
 630         }
 631
 632         /**
 633          * Returns whether the reply with the given ID is new.
 634          *
 635          * @param replyId
 636          *            The ID of the reply to check
 637          * @return {@code true} if the reply is considered to be new, {@code false}
 638          *         otherwise
 639          */
 640         public boolean isNewReply(String replyId) {
 641                 return isNewReply(replyId, true);
 642         }
 643
 644         /**
 645          * Returns whether the reply with the given ID is new.
 646          *
 647          * @param replyId
 648          *            The ID of the reply to check
 649          * @param markAsKnown
 650          *            {@code true} to mark the reply as known, {@code false} to not
 651          *            to mark it as known
 652          * @return {@code true} if the reply is considered to be new, {@code false}
 653          *         otherwise
 654          */
 655         public boolean isNewReply(String replyId, boolean markAsKnown) {
 656                 synchronized (newReplies) {
 657                         boolean isNew = !knownReplies.contains(replyId) && newReplies.contains(replyId);
 658                         if (markAsKnown) {
 659                                 Reply reply = getReply(replyId, false);
 660                                 if (reply != null) {
 661                                         markReplyKnown(reply);
 662                                 }
 663                         }
 664                         return isNew;
 665                 }
 666         }
 667
 668         /**
 669          * Returns all Sones that have liked the given post.
 670          *
 671          * @param post
 672          *            The post to get the liking Sones for
 673          * @return The Sones that like the given post
 674          */
 675         public Set<Sone> getLikes(Post post) {
 676                 Set<Sone> sones = new HashSet<Sone>();
 677                 for (Sone sone : getSones()) {
 678                         if (sone.getLikedPostIds().contains(post.getId())) {
 679                                 sones.add(sone);
 680                         }
 681                 }
 682                 return sones;
 683         }
 684
 685         /**
 686          * Returns all Sones that have liked the given reply.
 687          *
 688          * @param reply
 689          *            The reply to get the liking Sones for
 690          * @return The Sones that like the given reply
 691          */
 692         public Set<Sone> getLikes(Reply reply) {
 693                 Set<Sone> sones = new HashSet<Sone>();
 694                 for (Sone sone : getSones()) {
 695                         if (sone.getLikedReplyIds().contains(reply.getId())) {
 696                                 sones.add(sone);
 697                         }
 698                 }
 699                 return sones;
 700         }
 701
 702         //
 703         // ACTIONS
 704         //
 705
 706         /**
 707          * Locks the given Sone. A locked Sone will not be inserted by
 708          * {@link SoneInserter} until it is {@link #unlockSone(Sone) unlocked}
 709          * again.
 710          *
 711          * @param sone
 712          *            The sone to lock
 713          */
 714         public void lockSone(Sone sone) {
 715                 synchronized (lockedSones) {
 716                         if (lockedSones.add(sone)) {
 717                                 coreListenerManager.fireSoneLocked(sone);
 718                         }
 719                 }
 720         }
 721
 722         /**
 723          * Unlocks the given Sone.
 724          *
 725          * @see #lockSone(Sone)
 726          * @param sone
 727          *            The sone to unlock
 728          */
 729         public void unlockSone(Sone sone) {
 730                 synchronized (lockedSones) {
 731                         if (lockedSones.remove(sone)) {
 732                                 coreListenerManager.fireSoneUnlocked(sone);
 733                         }
 734                 }
 735         }
 736
 737         /**
 738          * Adds a local Sone from the given ID which has to be the ID of an own
 739          * identity.
 740          *
 741          * @param id
 742          *            The ID of an own identity to add a Sone for
 743          * @return The added (or already existing) Sone
 744          */
 745         public Sone addLocalSone(String id) {
 746                 synchronized (localSones) {
 747                         if (localSones.containsKey(id)) {
 748                                 logger.log(Level.FINE, "Tried to add known local Sone: %s", id);
 749                                 return localSones.get(id);
 750                         }
 751                         OwnIdentity ownIdentity = identityManager.getOwnIdentity(id);
 752                         if (ownIdentity == null) {
 753                                 logger.log(Level.INFO, "Invalid Sone ID: %s", id);
 754                                 return null;
 755                         }
 756                         return addLocalSone(ownIdentity);
 757                 }
 758         }
 759
 760         /**
 761          * Adds a local Sone from the given own identity.
 762          *
 763          * @param ownIdentity
 764          *            The own identity to create a Sone from
 765          * @return The added (or already existing) Sone
 766          */
 767         public Sone addLocalSone(OwnIdentity ownIdentity) {
 768                 if (ownIdentity == null) {
 769                         logger.log(Level.WARNING, "Given OwnIdentity is null!");
 770                         return null;
 771                 }
 772                 synchronized (localSones) {
 773                         final Sone sone;
 774                         try {
 775                                 sone = getLocalSone(ownIdentity.getId()).setIdentity(ownIdentity).setInsertUri(new FreenetURI(ownIdentity.getInsertUri())).setRequestUri(new FreenetURI(ownIdentity.getRequestUri()));
 776                         } catch (MalformedURLException mue1) {
 777                                 logger.log(Level.SEVERE, "Could not convert the Identity’s URIs to Freenet URIs: " + ownIdentity.getInsertUri() + ", " + ownIdentity.getRequestUri(), mue1);
 778                                 return null;
 779                         }
 780                         sone.setLatestEdition(Numbers.safeParseLong(ownIdentity.getProperty("Sone.LatestEdition"), (long) 0));
 781                         sone.setClient(new Client("Sone", SonePlugin.VERSION.toString()));
 782                         /* TODO - load posts ’n stuff */
 783                         localSones.put(ownIdentity.getId(), sone);
 784                         final SoneInserter soneInserter = new SoneInserter(this, freenetInterface, sone);
 785                         soneInserters.put(sone, soneInserter);
 786                         setSoneStatus(sone, SoneStatus.idle);
 787                         loadSone(sone);
 788                         if (!isSoneRescueMode()) {
 789                                 soneInserter.start();
 790                         }
 791                         new Thread(new Runnable() {
 792
 793                                 @Override
 794                                 @SuppressWarnings("synthetic-access")
 795                                 public void run() {
 796                                         if (!isSoneRescueMode()) {
 797                                                 soneDownloader.fetchSone(sone);
 798                                                 return;
 799                                         }
 800                                         logger.log(Level.INFO, "Trying to restore Sone from Freenet…");
 801                                         coreListenerManager.fireRescuingSone(sone);
 802                                         lockSone(sone);
 803                                         long edition = sone.getLatestEdition();
 804                                         while (!stopped && (edition >= 0) && isSoneRescueMode()) {
 805                                                 logger.log(Level.FINE, "Downloading edition " + edition + "…");
 806                                                 soneDownloader.fetchSone(sone, sone.getRequestUri().setKeyType("SSK").setDocName("Sone-" + edition));
 807                                                 --edition;
 808                                         }
 809                                         logger.log(Level.INFO, "Finished restoring Sone from Freenet, starting Inserter…");
 810                                         saveSone(sone);
 811                                         coreListenerManager.fireRescuedSone(sone);
 812                                         soneInserter.start();
 813                                 }
 814
 815                         }, "Sone Downloader").start();
 816                         return sone;
 817                 }
 818         }
 819
 820         /**
 821          * Creates a new Sone for the given own identity.
 822          *
 823          * @param ownIdentity
 824          *            The own identity to create a Sone for
 825          * @return The created Sone
 826          */
 827         public Sone createSone(OwnIdentity ownIdentity) {
 828                 identityManager.addContext(ownIdentity, "Sone");
 829                 Sone sone = addLocalSone(ownIdentity);
 830                 return sone;
 831         }
 832
 833         /**
 834          * Adds the Sone of the given identity.
 835          *
 836          * @param identity
 837          *            The identity whose Sone to add
 838          * @return The added or already existing Sone
 839          */
 840         public Sone addRemoteSone(Identity identity) {
 841                 if (identity == null) {
 842                         logger.log(Level.WARNING, "Given Identity is null!");
 843                         return null;
 844                 }
 845                 synchronized (remoteSones) {
 846                         final Sone sone = getRemoteSone(identity.getId()).setIdentity(identity);
 847                         boolean newSone = sone.getRequestUri() == null;
 848                         sone.setRequestUri(getSoneUri(identity.getRequestUri()));
 849                         sone.setLatestEdition(Numbers.safeParseLong(identity.getProperty("Sone.LatestEdition"), (long) 0));
 850                         if (newSone) {
 851                                 synchronized (newSones) {
 852                                         newSone = !knownSones.contains(sone.getId());
 853                                         if (newSone) {
 854                                                 newSones.add(sone.getId());
 855                                         }
 856                                 }
 857                                 if (newSone) {
 858                                         coreListenerManager.fireNewSoneFound(sone);
 859                                 }
 860                         }
 861                         remoteSones.put(identity.getId(), sone);
 862                         soneDownloader.addSone(sone);
 863                         setSoneStatus(sone, SoneStatus.unknown);
 864                         new Thread(new Runnable() {
 865
 866                                 @Override
 867                                 @SuppressWarnings("synthetic-access")
 868                                 public void run() {
 869                                         soneDownloader.fetchSone(sone);
 870                                 }
 871
 872                         }, "Sone Downloader").start();
 873                         return sone;
 874                 }
 875         }
 876
 877         /**
 878          * Updates the stores Sone with the given Sone.
 879          *
 880          * @param sone
 881          *            The updated Sone
 882          */
 883         public void updateSone(Sone sone) {
 884                 if (hasSone(sone.getId())) {
 885                         boolean soneRescueMode = isLocalSone(sone) && isSoneRescueMode();
 886                         Sone storedSone = getSone(sone.getId());
 887                         if (!soneRescueMode && !(sone.getTime() > storedSone.getTime())) {
 888                                 logger.log(Level.FINE, "Downloaded Sone %s is not newer than stored Sone %s.", new Object[] { sone, storedSone });
 889                                 return;
 890                         }
 891                         synchronized (posts) {
 892                                 if (!soneRescueMode) {
 893                                         for (Post post : storedSone.getPosts()) {
 894                                                 posts.remove(post.getId());
 895                                                 if (!sone.getPosts().contains(post)) {
 896                                                         coreListenerManager.firePostRemoved(post);
 897                                                 }
 898                                         }
 899                                 }
 900                                 synchronized (newPosts) {
 901                                         for (Post post : sone.getPosts()) {
 902                                                 post.setSone(getSone(post.getSone().getId()));
 903                                                 if (!storedSone.getPosts().contains(post) && !knownPosts.contains(post.getId())) {
 904                                                         newPosts.add(post.getId());
 905                                                         coreListenerManager.fireNewPostFound(post);
 906                                                 }
 907                                                 posts.put(post.getId(), post);
 908                                         }
 909                                 }
 910                         }
 911                         synchronized (replies) {
 912                                 if (!soneRescueMode) {
 913                                         for (Reply reply : storedSone.getReplies()) {
 914                                                 replies.remove(reply.getId());
 915                                                 if (!sone.getReplies().contains(reply)) {
 916                                                         coreListenerManager.fireReplyRemoved(reply);
 917                                                 }
 918                                         }
 919                                 }
 920                                 synchronized (newReplies) {
 921                                         for (Reply reply : sone.getReplies()) {
 922                                                 reply.setSone(getSone(reply.getSone().getId()));
 923                                                 if (!storedSone.getReplies().contains(reply) && !knownReplies.contains(reply.getId())) {
 924                                                         newReplies.add(reply.getId());
 925                                                         coreListenerManager.fireNewReplyFound(reply);
 926                                                 }
 927                                                 replies.put(reply.getId(), reply);
 928                                         }
 929                                 }
 930                         }
 931                         synchronized (storedSone) {
 932                                 if (!soneRescueMode || (sone.getTime() > storedSone.getTime())) {
 933                                         storedSone.setTime(sone.getTime());
 934                                 }
 935                                 storedSone.setClient(sone.getClient());
 936                                 storedSone.setProfile(sone.getProfile());
 937                                 if (soneRescueMode) {
 938                                         for (Post post : sone.getPosts()) {
 939                                                 storedSone.addPost(post);
 940                                         }
 941                                         for (Reply reply : sone.getReplies()) {
 942                                                 storedSone.addReply(reply);
 943                                         }
 944                                         for (String likedPostId : sone.getLikedPostIds()) {
 945                                                 storedSone.addLikedPostId(likedPostId);
 946                                         }
 947                                         for (String likedReplyId : sone.getLikedReplyIds()) {
 948                                                 storedSone.addLikedReplyId(likedReplyId);
 949                                         }
 950                                 } else {
 951                                         storedSone.setPosts(sone.getPosts());
 952                                         storedSone.setReplies(sone.getReplies());
 953                                         storedSone.setLikePostIds(sone.getLikedPostIds());
 954                                         storedSone.setLikeReplyIds(sone.getLikedReplyIds());
 955                                 }
 956                                 storedSone.setLatestEdition(sone.getLatestEdition());
 957                         }
 958                 }
 959         }
 960
 961         /**
 962          * Deletes the given Sone. This will remove the Sone from the
 963          * {@link #getLocalSone(String) local Sones}, stops its {@link SoneInserter}
 964          * and remove the context from its identity.
 965          *
 966          * @param sone
 967          *            The Sone to delete
 968          */
 969         public void deleteSone(Sone sone) {
 970                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
 971                         logger.log(Level.WARNING, "Tried to delete Sone of non-own identity: %s", sone);
 972                         return;
 973                 }
 974                 synchronized (localSones) {
 975                         if (!localSones.containsKey(sone.getId())) {
 976                                 logger.log(Level.WARNING, "Tried to delete non-local Sone: %s", sone);
 977                                 return;
 978                         }
 979                         localSones.remove(sone.getId());
 980                         soneInserters.remove(sone).stop();
 981                 }
 982                 identityManager.removeContext((OwnIdentity) sone.getIdentity(), "Sone");
 983                 identityManager.removeProperty((OwnIdentity) sone.getIdentity(), "Sone.LatestEdition");
 984                 try {
 985                         configuration.getLongValue("Sone/" + sone.getId() + "/Time").setValue(null);
 986                 } catch (ConfigurationException ce1) {
 987                         logger.log(Level.WARNING, "Could not remove Sone from configuration!", ce1);
 988                 }
 989         }
 990
 991         /**
 992          * Loads and updates the given Sone from the configuration. If any error is
 993          * encountered, loading is aborted and the given Sone is not changed.
 994          *
 995          * @param sone
 996          *            The Sone to load and update
 997          */
 998         public void loadSone(Sone sone) {
 999                 if (!isLocalSone(sone)) {
1000                         logger.log(Level.FINE, "Tried to load non-local Sone: %s", sone);
1001                         return;
1002                 }
1003
1004                 /* load Sone. */
1005                 String sonePrefix = "Sone/" + sone.getId();
1006                 Long soneTime = configuration.getLongValue(sonePrefix + "/Time").getValue(null);
1007                 if (soneTime == null) {
1008                         logger.log(Level.INFO, "Could not load Sone because no Sone has been saved.");
1009                         return;
1010                 }
1011                 String lastInsertFingerprint = configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").getValue("");
1012
1013                 /* load profile. */
1014                 Profile profile = new Profile();
1015                 profile.setFirstName(configuration.getStringValue(sonePrefix + "/Profile/FirstName").getValue(null));
1016                 profile.setMiddleName(configuration.getStringValue(sonePrefix + "/Profile/MiddleName").getValue(null));
1017                 profile.setLastName(configuration.getStringValue(sonePrefix + "/Profile/LastName").getValue(null));
1018                 profile.setBirthDay(configuration.getIntValue(sonePrefix + "/Profile/BirthDay").getValue(null));
1019                 profile.setBirthMonth(configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").getValue(null));
1020                 profile.setBirthYear(configuration.getIntValue(sonePrefix + "/Profile/BirthYear").getValue(null));
1021
1022                 /* load posts. */
1023                 Set<Post> posts = new HashSet<Post>();
1024                 while (true) {
1025                         String postPrefix = sonePrefix + "/Posts/" + posts.size();
1026                         String postId = configuration.getStringValue(postPrefix + "/ID").getValue(null);
1027                         if (postId == null) {
1028                                 break;
1029                         }
1030                         String postRecipientId = configuration.getStringValue(postPrefix + "/Recipient").getValue(null);
1031                         long postTime = configuration.getLongValue(postPrefix + "/Time").getValue((long) 0);
1032                         String postText = configuration.getStringValue(postPrefix + "/Text").getValue(null);
1033                         if ((postTime == 0) || (postText == null)) {
1034                                 logger.log(Level.WARNING, "Invalid post found, aborting load!");
1035                                 return;
1036                         }
1037                         Post post = getPost(postId).setSone(sone).setTime(postTime).setText(postText);
1038                         if ((postRecipientId != null) && (postRecipientId.length() == 43)) {
1039                                 post.setRecipient(getSone(postRecipientId));
1040                         }
1041                         posts.add(post);
1042                 }
1043
1044                 /* load replies. */
1045                 Set<Reply> replies = new HashSet<Reply>();
1046                 while (true) {
1047                         String replyPrefix = sonePrefix + "/Replies/" + replies.size();
1048                         String replyId = configuration.getStringValue(replyPrefix + "/ID").getValue(null);
1049                         if (replyId == null) {
1050                                 break;
1051                         }
1052                         String postId = configuration.getStringValue(replyPrefix + "/Post/ID").getValue(null);
1053                         long replyTime = configuration.getLongValue(replyPrefix + "/Time").getValue((long) 0);
1054                         String replyText = configuration.getStringValue(replyPrefix + "/Text").getValue(null);
1055                         if ((postId == null) || (replyTime == 0) || (replyText == null)) {
1056                                 logger.log(Level.WARNING, "Invalid reply found, aborting load!");
1057                                 return;
1058                         }
1059                         replies.add(getReply(replyId).setSone(sone).setPost(getPost(postId)).setTime(replyTime).setText(replyText));
1060                 }
1061
1062                 /* load post likes. */
1063                 Set<String> likedPostIds = new HashSet<String>();
1064                 while (true) {
1065                         String likedPostId = configuration.getStringValue(sonePrefix + "/Likes/Post/" + likedPostIds.size() + "/ID").getValue(null);
1066                         if (likedPostId == null) {
1067                                 break;
1068                         }
1069                         likedPostIds.add(likedPostId);
1070                 }
1071
1072                 /* load reply likes. */
1073                 Set<String> likedReplyIds = new HashSet<String>();
1074                 while (true) {
1075                         String likedReplyId = configuration.getStringValue(sonePrefix + "/Likes/Reply/" + likedReplyIds.size() + "/ID").getValue(null);
1076                         if (likedReplyId == null) {
1077                                 break;
1078                         }
1079                         likedReplyIds.add(likedReplyId);
1080                 }
1081
1082                 /* load friends. */
1083                 Set<String> friends = new HashSet<String>();
1084                 while (true) {
1085                         String friendId = configuration.getStringValue(sonePrefix + "/Friends/" + friends.size() + "/ID").getValue(null);
1086                         if (friendId == null) {
1087                                 break;
1088                         }
1089                         friends.add(friendId);
1090                 }
1091
1092                 /* if we’re still here, Sone was loaded successfully. */
1093                 synchronized (sone) {
1094                         sone.setTime(soneTime);
1095                         sone.setProfile(profile);
1096                         sone.setPosts(posts);
1097                         sone.setReplies(replies);
1098                         sone.setLikePostIds(likedPostIds);
1099                         sone.setLikeReplyIds(likedReplyIds);
1100                         sone.setFriends(friends);
1101                         soneInserters.get(sone).setLastInsertFingerprint(lastInsertFingerprint);
1102                 }
1103                 synchronized (newSones) {
1104                         for (String friend : friends) {
1105                                 knownSones.add(friend);
1106                         }
1107                 }
1108                 synchronized (newPosts) {
1109                         for (Post post : posts) {
1110                                 knownPosts.add(post.getId());
1111                         }
1112                 }
1113                 synchronized (newReplies) {
1114                         for (Reply reply : replies) {
1115                                 knownReplies.add(reply.getId());
1116                         }
1117                 }
1118         }
1119
1120         /**
1121          * Saves the given Sone. This will persist all local settings for the given
1122          * Sone, such as the friends list and similar, private options.
1123          *
1124          * @param sone
1125          *            The Sone to save
1126          */
1127         public synchronized void saveSone(Sone sone) {
1128                 if (!isLocalSone(sone)) {
1129                         logger.log(Level.FINE, "Tried to save non-local Sone: %s", sone);
1130                         return;
1131                 }
1132                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
1133                         logger.log(Level.WARNING, "Local Sone without OwnIdentity found, refusing to save: %s", sone);
1134                         return;
1135                 }
1136
1137                 logger.log(Level.INFO, "Saving Sone: %s", sone);
1138                 identityManager.setProperty((OwnIdentity) sone.getIdentity(), "Sone.LatestEdition", String.valueOf(sone.getLatestEdition()));
1139                 try {
1140                         /* save Sone into configuration. */
1141                         String sonePrefix = "Sone/" + sone.getId();
1142                         configuration.getLongValue(sonePrefix + "/Time").setValue(sone.getTime());
1143                         configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").setValue(soneInserters.get(sone).getLastInsertFingerprint());
1144
1145                         /* save profile. */
1146                         Profile profile = sone.getProfile();
1147                         configuration.getStringValue(sonePrefix + "/Profile/FirstName").setValue(profile.getFirstName());
1148                         configuration.getStringValue(sonePrefix + "/Profile/MiddleName").setValue(profile.getMiddleName());
1149                         configuration.getStringValue(sonePrefix + "/Profile/LastName").setValue(profile.getLastName());
1150                         configuration.getIntValue(sonePrefix + "/Profile/BirthDay").setValue(profile.getBirthDay());
1151                         configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").setValue(profile.getBirthMonth());
1152                         configuration.getIntValue(sonePrefix + "/Profile/BirthYear").setValue(profile.getBirthYear());
1153
1154                         /* save posts. */
1155                         int postCounter = 0;
1156                         for (Post post : sone.getPosts()) {
1157                                 String postPrefix = sonePrefix + "/Posts/" + postCounter++;
1158                                 configuration.getStringValue(postPrefix + "/ID").setValue(post.getId());
1159                                 configuration.getStringValue(postPrefix + "/Recipient").setValue((post.getRecipient() != null) ? post.getRecipient().getId() : null);
1160                                 configuration.getLongValue(postPrefix + "/Time").setValue(post.getTime());
1161                                 configuration.getStringValue(postPrefix + "/Text").setValue(post.getText());
1162                         }
1163                         configuration.getStringValue(sonePrefix + "/Posts/" + postCounter + "/ID").setValue(null);
1164
1165                         /* save replies. */
1166                         int replyCounter = 0;
1167                         for (Reply reply : sone.getReplies()) {
1168                                 String replyPrefix = sonePrefix + "/Replies/" + replyCounter++;
1169                                 configuration.getStringValue(replyPrefix + "/ID").setValue(reply.getId());
1170                                 configuration.getStringValue(replyPrefix + "/Post/ID").setValue(reply.getPost().getId());
1171                                 configuration.getLongValue(replyPrefix + "/Time").setValue(reply.getTime());
1172                                 configuration.getStringValue(replyPrefix + "/Text").setValue(reply.getText());
1173                         }
1174                         configuration.getStringValue(sonePrefix + "/Replies/" + replyCounter + "/ID").setValue(null);
1175
1176                         /* save post likes. */
1177                         int postLikeCounter = 0;
1178                         for (String postId : sone.getLikedPostIds()) {
1179                                 configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter++ + "/ID").setValue(postId);
1180                         }
1181                         configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter + "/ID").setValue(null);
1182
1183                         /* save reply likes. */
1184                         int replyLikeCounter = 0;
1185                         for (String replyId : sone.getLikedReplyIds()) {
1186                                 configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter++ + "/ID").setValue(replyId);
1187                         }
1188                         configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter + "/ID").setValue(null);
1189
1190                         /* save friends. */
1191                         int friendCounter = 0;
1192                         for (String friendId : sone.getFriends()) {
1193                                 configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter++ + "/ID").setValue(friendId);
1194                         }
1195                         configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter + "/ID").setValue(null);
1196
1197                         configuration.save();
1198                         logger.log(Level.INFO, "Sone %s saved.", sone);
1199                 } catch (ConfigurationException ce1) {
1200                         logger.log(Level.WARNING, "Could not save Sone: " + sone, ce1);
1201                 }
1202         }
1203
1204         /**
1205          * Creates a new post.
1206          *
1207          * @param sone
1208          *            The Sone that creates the post
1209          * @param text
1210          *            The text of the post
1211          * @return The created post
1212          */
1213         public Post createPost(Sone sone, String text) {
1214                 return createPost(sone, System.currentTimeMillis(), text);
1215         }
1216
1217         /**
1218          * Creates a new post.
1219          *
1220          * @param sone
1221          *            The Sone that creates the post
1222          * @param time
1223          *            The time of the post
1224          * @param text
1225          *            The text of the post
1226          * @return The created post
1227          */
1228         public Post createPost(Sone sone, long time, String text) {
1229                 return createPost(sone, null, time, text);
1230         }
1231
1232         /**
1233          * Creates a new post.
1234          *
1235          * @param sone
1236          *            The Sone that creates the post
1237          * @param recipient
1238          *            The recipient Sone, or {@code null} if this post does not have
1239          *            a recipient
1240          * @param text
1241          *            The text of the post
1242          * @return The created post
1243          */
1244         public Post createPost(Sone sone, Sone recipient, String text) {
1245                 return createPost(sone, recipient, System.currentTimeMillis(), text);
1246         }
1247
1248         /**
1249          * Creates a new post.
1250          *
1251          * @param sone
1252          *            The Sone that creates the post
1253          * @param recipient
1254          *            The recipient Sone, or {@code null} if this post does not have
1255          *            a recipient
1256          * @param time
1257          *            The time of the post
1258          * @param text
1259          *            The text of the post
1260          * @return The created post
1261          */
1262         public Post createPost(Sone sone, Sone recipient, long time, String text) {
1263                 if (!isLocalSone(sone)) {
1264                         logger.log(Level.FINE, "Tried to create post for non-local Sone: %s", sone);
1265                         return null;
1266                 }
1267                 Post post = new Post(sone, time, text);
1268                 if (recipient != null) {
1269                         post.setRecipient(recipient);
1270                 }
1271                 synchronized (posts) {
1272                         posts.put(post.getId(), post);
1273                 }
1274                 synchronized (newPosts) {
1275                         knownPosts.add(post.getId());
1276                 }
1277                 sone.addPost(post);
1278                 saveSone(sone);
1279                 return post;
1280         }
1281
1282         /**
1283          * Deletes the given post.
1284          *
1285          * @param post
1286          *            The post to delete
1287          */
1288         public void deletePost(Post post) {
1289                 if (!isLocalSone(post.getSone())) {
1290                         logger.log(Level.WARNING, "Tried to delete post of non-local Sone: %s", post.getSone());
1291                         return;
1292                 }
1293                 post.getSone().removePost(post);
1294                 synchronized (posts) {
1295                         posts.remove(post.getId());
1296                 }
1297                 saveSone(post.getSone());
1298         }
1299
1300         /**
1301          * Marks the given post as known, if it is currently a new post (according
1302          * to {@link #isNewPost(String)}).
1303          *
1304          * @param post
1305          *            The post to mark as known
1306          */
1307         public void markPostKnown(Post post) {
1308                 synchronized (newPosts) {
1309                         if (newPosts.remove(post.getId())) {
1310                                 knownPosts.add(post.getId());
1311                                 coreListenerManager.fireMarkPostKnown(post);
1312                                 saveConfiguration();
1313                         }
1314                 }
1315         }
1316
1317         /**
1318          * Creates a new reply.
1319          *
1320          * @param sone
1321          *            The Sone that creates the reply
1322          * @param post
1323          *            The post that this reply refers to
1324          * @param text
1325          *            The text of the reply
1326          * @return The created reply
1327          */
1328         public Reply createReply(Sone sone, Post post, String text) {
1329                 return createReply(sone, post, System.currentTimeMillis(), text);
1330         }
1331
1332         /**
1333          * Creates a new reply.
1334          *
1335          * @param sone
1336          *            The Sone that creates the reply
1337          * @param post
1338          *            The post that this reply refers to
1339          * @param time
1340          *            The time of the reply
1341          * @param text
1342          *            The text of the reply
1343          * @return The created reply
1344          */
1345         public Reply createReply(Sone sone, Post post, long time, String text) {
1346                 if (!isLocalSone(sone)) {
1347                         logger.log(Level.FINE, "Tried to create reply for non-local Sone: %s", sone);
1348                         return null;
1349                 }
1350                 Reply reply = new Reply(sone, post, System.currentTimeMillis(), text);
1351                 synchronized (replies) {
1352                         replies.put(reply.getId(), reply);
1353                 }
1354                 synchronized (newReplies) {
1355                         knownReplies.add(reply.getId());
1356                 }
1357                 sone.addReply(reply);
1358                 saveSone(sone);
1359                 return reply;
1360         }
1361
1362         /**
1363          * Deletes the given reply.
1364          *
1365          * @param reply
1366          *            The reply to delete
1367          */
1368         public void deleteReply(Reply reply) {
1369                 Sone sone = reply.getSone();
1370                 if (!isLocalSone(sone)) {
1371                         logger.log(Level.FINE, "Tried to delete non-local reply: %s", reply);
1372                         return;
1373                 }
1374                 synchronized (replies) {
1375                         replies.remove(reply.getId());
1376                 }
1377                 sone.removeReply(reply);
1378                 saveSone(sone);
1379         }
1380
1381         /**
1382          * Marks the given reply as known, if it is currently a new reply (according
1383          * to {@link #isNewReply(String)}).
1384          *
1385          * @param reply
1386          *            The reply to mark as known
1387          */
1388         public void markReplyKnown(Reply reply) {
1389                 synchronized (newReplies) {
1390                         if (newReplies.remove(reply.getId())) {
1391                                 knownReplies.add(reply.getId());
1392                                 coreListenerManager.fireMarkReplyKnown(reply);
1393                                 saveConfiguration();
1394                         }
1395                 }
1396         }
1397
1398         /**
1399          * Starts the core.
1400          */
1401         public void start() {
1402                 loadConfiguration();
1403         }
1404
1405         /**
1406          * Stops the core.
1407          */
1408         public void stop() {
1409                 synchronized (localSones) {
1410                         for (SoneInserter soneInserter : soneInserters.values()) {
1411                                 soneInserter.stop();
1412                         }
1413                 }
1414                 soneDownloader.stop();
1415                 saveConfiguration();
1416                 stopped = true;
1417         }
1418
1419         /**
1420          * Saves the current options.
1421          */
1422         public void saveConfiguration() {
1423                 synchronized (configuration) {
1424                         if (storingConfiguration) {
1425                                 logger.log(Level.FINE, "Already storing configuration…");
1426                                 return;
1427                         }
1428                         storingConfiguration = true;
1429                 }
1430
1431                 /* store the options first. */
1432                 try {
1433                         configuration.getIntValue("Option/ConfigurationVersion").setValue(0);
1434                         configuration.getIntValue("Option/InsertionDelay").setValue(options.getIntegerOption("InsertionDelay").getReal());
1435                         configuration.getBooleanValue("Option/SoneRescueMode").setValue(options.getBooleanOption("SoneRescueMode").getReal());
1436                         configuration.getBooleanValue("Option/ClearOnNextRestart").setValue(options.getBooleanOption("ClearOnNextRestart").getReal());
1437                         configuration.getBooleanValue("Option/ReallyClearOnNextRestart").setValue(options.getBooleanOption("ReallyClearOnNextRestart").getReal());
1438
1439                         /* save known Sones. */
1440                         int soneCounter = 0;
1441                         synchronized (newSones) {
1442                                 for (String knownSoneId : knownSones) {
1443                                         configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").setValue(knownSoneId);
1444                                 }
1445                                 configuration.getStringValue("KnownSone/" + soneCounter + "/ID").setValue(null);
1446                         }
1447
1448                         /* save known posts. */
1449                         int postCounter = 0;
1450                         synchronized (newPosts) {
1451                                 for (String knownPostId : knownPosts) {
1452                                         configuration.getStringValue("KnownPosts/" + postCounter++ + "/ID").setValue(knownPostId);
1453                                 }
1454                                 configuration.getStringValue("KnownPosts/" + postCounter + "/ID").setValue(null);
1455                         }
1456
1457                         /* save known replies. */
1458                         int replyCounter = 0;
1459                         synchronized (newReplies) {
1460                                 for (String knownReplyId : knownReplies) {
1461                                         configuration.getStringValue("KnownReplies/" + replyCounter++ + "/ID").setValue(knownReplyId);
1462                                 }
1463                                 configuration.getStringValue("KnownReplies/" + replyCounter + "/ID").setValue(null);
1464                         }
1465
1466                         /* now save it. */
1467                         configuration.save();
1468
1469                 } catch (ConfigurationException ce1) {
1470                         logger.log(Level.SEVERE, "Could not store configuration!", ce1);
1471                 } finally {
1472                         synchronized (configuration) {
1473                                 storingConfiguration = false;
1474                         }
1475                 }
1476         }
1477
1478         //
1479         // PRIVATE METHODS
1480         //
1481
1482         /**
1483          * Loads the configuration.
1484          */
1485         @SuppressWarnings("unchecked")
1486         private void loadConfiguration() {
1487                 /* create options. */
1488                 options.addIntegerOption("InsertionDelay", new DefaultOption<Integer>(60, new OptionWatcher<Integer>() {
1489
1490                         @Override
1491                         public void optionChanged(Option<Integer> option, Integer oldValue, Integer newValue) {
1492                                 SoneInserter.setInsertionDelay(newValue);
1493                         }
1494
1495                 }));
1496                 options.addBooleanOption("SoneRescueMode", new DefaultOption<Boolean>(false));
1497                 options.addBooleanOption("ClearOnNextRestart", new DefaultOption<Boolean>(false));
1498                 options.addBooleanOption("ReallyClearOnNextRestart", new DefaultOption<Boolean>(false));
1499
1500                 /* read options from configuration. */
1501                 options.getBooleanOption("ClearOnNextRestart").set(configuration.getBooleanValue("Option/ClearOnNextRestart").getValue(null));
1502                 options.getBooleanOption("ReallyClearOnNextRestart").set(configuration.getBooleanValue("Option/ReallyClearOnNextRestart").getValue(null));
1503                 boolean clearConfiguration = options.getBooleanOption("ClearOnNextRestart").get() && options.getBooleanOption("ReallyClearOnNextRestart").get();
1504                 options.getBooleanOption("ClearOnNextRestart").set(null);
1505                 options.getBooleanOption("ReallyClearOnNextRestart").set(null);
1506                 if (clearConfiguration) {
1507                         /* stop loading the configuration. */
1508                         return;
1509                 }
1510
1511                 options.getIntegerOption("InsertionDelay").set(configuration.getIntValue("Option/InsertionDelay").getValue(null));
1512                 options.getBooleanOption("SoneRescueMode").set(configuration.getBooleanValue("Option/SoneRescueMode").getValue(null));
1513
1514                 /* load known Sones. */
1515                 int soneCounter = 0;
1516                 while (true) {
1517                         String knownSoneId = configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").getValue(null);
1518                         if (knownSoneId == null) {
1519                                 break;
1520                         }
1521                         synchronized (newSones) {
1522                                 knownSones.add(knownSoneId);
1523                         }
1524                 }
1525
1526                 /* load known posts. */
1527                 int postCounter = 0;
1528                 while (true) {
1529                         String knownPostId = configuration.getStringValue("KnownPosts/" + postCounter++ + "/ID").getValue(null);
1530                         if (knownPostId == null) {
1531                                 break;
1532                         }
1533                         synchronized (newPosts) {
1534                                 knownPosts.add(knownPostId);
1535                         }
1536                 }
1537
1538                 /* load known replies. */
1539                 int replyCounter = 0;
1540                 while (true) {
1541                         String knownReplyId = configuration.getStringValue("KnownReplies/" + replyCounter++ + "/ID").getValue(null);
1542                         if (knownReplyId == null) {
1543                                 break;
1544                         }
1545                         synchronized (newReplies) {
1546                                 knownReplies.add(knownReplyId);
1547                         }
1548                 }
1549
1550         }
1551
1552         /**
1553          * Generate a Sone URI from the given URI and latest edition.
1554          *
1555          * @param uriString
1556          *            The URI to derive the Sone URI from
1557          * @return The derived URI
1558          */
1559         private FreenetURI getSoneUri(String uriString) {
1560                 try {
1561                         FreenetURI uri = new FreenetURI(uriString).setDocName("Sone").setMetaString(new String[0]);
1562                         return uri;
1563                 } catch (MalformedURLException mue1) {
1564                         logger.log(Level.WARNING, "Could not create Sone URI from URI: " + uriString, mue1);
1565                         return null;
1566                 }
1567         }
1568
1569         //
1570         // INTERFACE IdentityListener
1571         //
1572
1573         /**
1574          * {@inheritDoc}
1575          */
1576         @Override
1577         public void ownIdentityAdded(OwnIdentity ownIdentity) {
1578                 logger.log(Level.FINEST, "Adding OwnIdentity: " + ownIdentity);
1579                 if (ownIdentity.hasContext("Sone")) {
1580                         addLocalSone(ownIdentity);
1581                 }
1582         }
1583
1584         /**
1585          * {@inheritDoc}
1586          */
1587         @Override
1588         public void ownIdentityRemoved(OwnIdentity ownIdentity) {
1589                 logger.log(Level.FINEST, "Removing OwnIdentity: " + ownIdentity);
1590         }
1591
1592         /**
1593          * {@inheritDoc}
1594          */
1595         @Override
1596         public void identityAdded(Identity identity) {
1597                 logger.log(Level.FINEST, "Adding Identity: " + identity);
1598                 addRemoteSone(identity);
1599         }
1600
1601         /**
1602          * {@inheritDoc}
1603          */
1604         @Override
1605         public void identityUpdated(final Identity identity) {
1606                 new Thread(new Runnable() {
1607
1608                         @Override
1609                         @SuppressWarnings("synthetic-access")
1610                         public void run() {
1611                                 Sone sone = getRemoteSone(identity.getId());
1612                                 soneDownloader.fetchSone(sone);
1613                         }
1614                 }).start();
1615         }
1616
1617         /**
1618          * {@inheritDoc}
1619          */
1620         @Override
1621         public void identityRemoved(Identity identity) {
1622                 /* TODO */
1623         }
1624
1625 }