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