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                 synchronized (newPosts) {
 545                         boolean isNew = !knownPosts.contains(postId) && newPosts.remove(postId);
 546                         knownPosts.add(postId);
 547                         if (isNew) {
 548                                 coreListenerManager.fireMarkPostKnown(getPost(postId));
 549                         }
 550                         return isNew;
 551                 }
 552         }
 553
 554         /**
 555          * Returns the reply with the given ID.
 556          *
 557          * @param replyId
 558          *            The ID of the reply to get
 559          * @return The reply, or {@code null} if there is no such reply
 560          */
 561         public Reply getReply(String replyId) {
 562                 synchronized (replies) {
 563                         Reply reply = replies.get(replyId);
 564                         if (reply == null) {
 565                                 reply = new Reply(replyId);
 566                                 replies.put(replyId, reply);
 567                         }
 568                         return reply;
 569                 }
 570         }
 571
 572         /**
 573          * Returns all replies for the given post, order ascending by time.
 574          *
 575          * @param post
 576          *            The post to get all replies for
 577          * @return All replies for the given post
 578          */
 579         public List<Reply> getReplies(Post post) {
 580                 Set<Sone> sones = getSones();
 581                 List<Reply> replies = new ArrayList<Reply>();
 582                 for (Sone sone : sones) {
 583                         for (Reply reply : sone.getReplies()) {
 584                                 if (reply.getPost().equals(post)) {
 585                                         replies.add(reply);
 586                                 }
 587                         }
 588                 }
 589                 Collections.sort(replies, Reply.TIME_COMPARATOR);
 590                 return replies;
 591         }
 592
 593         /**
 594          * Returns whether the reply with the given ID is new.
 595          *
 596          * @param replyId
 597          *            The ID of the reply to check
 598          * @return {@code true} if the reply is considered to be new, {@code false}
 599          *         otherwise
 600          */
 601         public boolean isNewReply(String replyId) {
 602                 synchronized (newReplies) {
 603                         boolean isNew = !knownReplies.contains(replyId) && newReplies.remove(replyId);
 604                         knownReplies.add(replyId);
 605                         if (isNew) {
 606                                 coreListenerManager.fireMarkReplyKnown(getReply(replyId));
 607                         }
 608                         return isNew;
 609                 }
 610         }
 611
 612         /**
 613          * Returns all Sones that have liked the given post.
 614          *
 615          * @param post
 616          *            The post to get the liking Sones for
 617          * @return The Sones that like the given post
 618          */
 619         public Set<Sone> getLikes(Post post) {
 620                 Set<Sone> sones = new HashSet<Sone>();
 621                 for (Sone sone : getSones()) {
 622                         if (sone.getLikedPostIds().contains(post.getId())) {
 623                                 sones.add(sone);
 624                         }
 625                 }
 626                 return sones;
 627         }
 628
 629         /**
 630          * Returns all Sones that have liked the given reply.
 631          *
 632          * @param reply
 633          *            The reply to get the liking Sones for
 634          * @return The Sones that like the given reply
 635          */
 636         public Set<Sone> getLikes(Reply reply) {
 637                 Set<Sone> sones = new HashSet<Sone>();
 638                 for (Sone sone : getSones()) {
 639                         if (sone.getLikedReplyIds().contains(reply.getId())) {
 640                                 sones.add(sone);
 641                         }
 642                 }
 643                 return sones;
 644         }
 645
 646         //
 647         // ACTIONS
 648         //
 649
 650         /**
 651          * Locks the given Sone. A locked Sone will not be inserted by
 652          * {@link SoneInserter} until it is {@link #unlockSone(Sone) unlocked}
 653          * again.
 654          *
 655          * @param sone
 656          *            The sone to lock
 657          */
 658         public void lockSone(Sone sone) {
 659                 synchronized (lockedSones) {
 660                         lockedSones.add(sone);
 661                 }
 662         }
 663
 664         /**
 665          * Unlocks the given Sone.
 666          *
 667          * @see #lockSone(Sone)
 668          * @param sone
 669          *            The sone to unlock
 670          */
 671         public void unlockSone(Sone sone) {
 672                 synchronized (lockedSones) {
 673                         lockedSones.remove(sone);
 674                 }
 675         }
 676
 677         /**
 678          * Adds a local Sone from the given ID which has to be the ID of an own
 679          * identity.
 680          *
 681          * @param id
 682          *            The ID of an own identity to add a Sone for
 683          * @return The added (or already existing) Sone
 684          */
 685         public Sone addLocalSone(String id) {
 686                 synchronized (localSones) {
 687                         if (localSones.containsKey(id)) {
 688                                 logger.log(Level.FINE, "Tried to add known local Sone: %s", id);
 689                                 return localSones.get(id);
 690                         }
 691                         OwnIdentity ownIdentity = identityManager.getOwnIdentity(id);
 692                         if (ownIdentity == null) {
 693                                 logger.log(Level.INFO, "Invalid Sone ID: %s", id);
 694                                 return null;
 695                         }
 696                         return addLocalSone(ownIdentity);
 697                 }
 698         }
 699
 700         /**
 701          * Adds a local Sone from the given own identity.
 702          *
 703          * @param ownIdentity
 704          *            The own identity to create a Sone from
 705          * @return The added (or already existing) Sone
 706          */
 707         public Sone addLocalSone(OwnIdentity ownIdentity) {
 708                 if (ownIdentity == null) {
 709                         logger.log(Level.WARNING, "Given OwnIdentity is null!");
 710                         return null;
 711                 }
 712                 synchronized (localSones) {
 713                         final Sone sone;
 714                         try {
 715                                 sone = getLocalSone(ownIdentity.getId()).setIdentity(ownIdentity).setInsertUri(new FreenetURI(ownIdentity.getInsertUri())).setRequestUri(new FreenetURI(ownIdentity.getRequestUri()));
 716                         } catch (MalformedURLException mue1) {
 717                                 logger.log(Level.SEVERE, "Could not convert the Identity’s URIs to Freenet URIs: " + ownIdentity.getInsertUri() + ", " + ownIdentity.getRequestUri(), mue1);
 718                                 return null;
 719                         }
 720                         sone.setLatestEdition(Numbers.safeParseLong(ownIdentity.getProperty("Sone.LatestEdition"), (long) 0));
 721                         sone.setClient(new Client("Sone", SonePlugin.VERSION.toString()));
 722                         /* TODO - load posts ’n stuff */
 723                         localSones.put(ownIdentity.getId(), sone);
 724                         final SoneInserter soneInserter = new SoneInserter(this, freenetInterface, sone);
 725                         soneInserters.put(sone, soneInserter);
 726                         setSoneStatus(sone, SoneStatus.idle);
 727                         loadSone(sone);
 728                         if (!isSoneRescueMode()) {
 729                                 soneInserter.start();
 730                         }
 731                         new Thread(new Runnable() {
 732
 733                                 @Override
 734                                 @SuppressWarnings("synthetic-access")
 735                                 public void run() {
 736                                         if (!isSoneRescueMode()) {
 737                                                 soneDownloader.fetchSone(sone);
 738                                                 return;
 739                                         }
 740                                         logger.log(Level.INFO, "Trying to restore Sone from Freenet…");
 741                                         coreListenerManager.fireRescuingSone(sone);
 742                                         lockSone(sone);
 743                                         long edition = sone.getLatestEdition();
 744                                         while (!stopped && (edition >= 0) && isSoneRescueMode()) {
 745                                                 logger.log(Level.FINE, "Downloading edition " + edition + "…");
 746                                                 soneDownloader.fetchSone(sone, sone.getRequestUri().setKeyType("SSK").setDocName("Sone-" + edition));
 747                                                 --edition;
 748                                         }
 749                                         logger.log(Level.INFO, "Finished restoring Sone from Freenet, starting Inserter…");
 750                                         saveSone(sone);
 751                                         coreListenerManager.fireRescuedSone(sone);
 752                                         soneInserter.start();
 753                                 }
 754
 755                         }, "Sone Downloader").start();
 756                         return sone;
 757                 }
 758         }
 759
 760         /**
 761          * Creates a new Sone for the given own identity.
 762          *
 763          * @param ownIdentity
 764          *            The own identity to create a Sone for
 765          * @return The created Sone
 766          */
 767         public Sone createSone(OwnIdentity ownIdentity) {
 768                 identityManager.addContext(ownIdentity, "Sone");
 769                 Sone sone = addLocalSone(ownIdentity);
 770                 return sone;
 771         }
 772
 773         /**
 774          * Adds the Sone of the given identity.
 775          *
 776          * @param identity
 777          *            The identity whose Sone to add
 778          * @return The added or already existing Sone
 779          */
 780         public Sone addRemoteSone(Identity identity) {
 781                 if (identity == null) {
 782                         logger.log(Level.WARNING, "Given Identity is null!");
 783                         return null;
 784                 }
 785                 synchronized (remoteSones) {
 786                         final Sone sone = getRemoteSone(identity.getId()).setIdentity(identity);
 787                         boolean newSone = sone.getRequestUri() == null;
 788                         sone.setRequestUri(getSoneUri(identity.getRequestUri()));
 789                         sone.setLatestEdition(Numbers.safeParseLong(identity.getProperty("Sone.LatestEdition"), (long) 0));
 790                         if (newSone) {
 791                                 synchronized (newSones) {
 792                                         newSone = !knownSones.contains(sone.getId());
 793                                         if (newSone) {
 794                                                 newSones.add(sone.getId());
 795                                         }
 796                                 }
 797                                 if (newSone) {
 798                                         coreListenerManager.fireNewSoneFound(sone);
 799                                 }
 800                         }
 801                         remoteSones.put(identity.getId(), sone);
 802                         soneDownloader.addSone(sone);
 803                         setSoneStatus(sone, SoneStatus.unknown);
 804                         new Thread(new Runnable() {
 805
 806                                 @Override
 807                                 @SuppressWarnings("synthetic-access")
 808                                 public void run() {
 809                                         soneDownloader.fetchSone(sone);
 810                                 }
 811
 812                         }, "Sone Downloader").start();
 813                         return sone;
 814                 }
 815         }
 816
 817         /**
 818          * Updates the stores Sone with the given Sone.
 819          *
 820          * @param sone
 821          *            The updated Sone
 822          */
 823         public void updateSone(Sone sone) {
 824                 if (hasSone(sone.getId())) {
 825                         boolean soneRescueMode = isLocalSone(sone) && isSoneRescueMode();
 826                         Sone storedSone = getSone(sone.getId());
 827                         if (!soneRescueMode && !(sone.getTime() > storedSone.getTime())) {
 828                                 logger.log(Level.FINE, "Downloaded Sone %s is not newer than stored Sone %s.", new Object[] { sone, storedSone });
 829                                 return;
 830                         }
 831                         synchronized (posts) {
 832                                 if (!soneRescueMode) {
 833                                         for (Post post : storedSone.getPosts()) {
 834                                                 posts.remove(post.getId());
 835                                         }
 836                                 }
 837                                 synchronized (newPosts) {
 838                                         for (Post post : sone.getPosts()) {
 839                                                 post.setSone(getSone(post.getSone().getId()));
 840                                                 if (!storedSone.getPosts().contains(post) && !knownPosts.contains(post.getId())) {
 841                                                         newPosts.add(post.getId());
 842                                                         coreListenerManager.fireNewPostFound(post);
 843                                                 }
 844                                                 posts.put(post.getId(), post);
 845                                         }
 846                                 }
 847                         }
 848                         synchronized (replies) {
 849                                 if (!soneRescueMode) {
 850                                         for (Reply reply : storedSone.getReplies()) {
 851                                                 replies.remove(reply.getId());
 852                                         }
 853                                 }
 854                                 synchronized (newReplies) {
 855                                         for (Reply reply : sone.getReplies()) {
 856                                                 reply.setSone(getSone(reply.getSone().getId()));
 857                                                 if (!storedSone.getReplies().contains(reply) && !knownReplies.contains(reply.getId())) {
 858                                                         newReplies.add(reply.getId());
 859                                                         coreListenerManager.fireNewReplyFound(reply);
 860                                                 }
 861                                                 replies.put(reply.getId(), reply);
 862                                         }
 863                                 }
 864                         }
 865                         synchronized (storedSone) {
 866                                 if (!soneRescueMode || (sone.getTime() > storedSone.getTime())) {
 867                                         storedSone.setTime(sone.getTime());
 868                                 }
 869                                 storedSone.setClient(sone.getClient());
 870                                 storedSone.setProfile(sone.getProfile());
 871                                 if (soneRescueMode) {
 872                                         for (Post post : sone.getPosts()) {
 873                                                 storedSone.addPost(post);
 874                                         }
 875                                         for (Reply reply : sone.getReplies()) {
 876                                                 storedSone.addReply(reply);
 877                                         }
 878                                         for (String likedPostId : sone.getLikedPostIds()) {
 879                                                 storedSone.addLikedPostId(likedPostId);
 880                                         }
 881                                         for (String likedReplyId : sone.getLikedReplyIds()) {
 882                                                 storedSone.addLikedReplyId(likedReplyId);
 883                                         }
 884                                 } else {
 885                                         storedSone.setPosts(sone.getPosts());
 886                                         storedSone.setReplies(sone.getReplies());
 887                                         storedSone.setLikePostIds(sone.getLikedPostIds());
 888                                         storedSone.setLikeReplyIds(sone.getLikedReplyIds());
 889                                 }
 890                                 storedSone.setLatestEdition(sone.getLatestEdition());
 891                         }
 892                 }
 893         }
 894
 895         /**
 896          * Deletes the given Sone. This will remove the Sone from the
 897          * {@link #getLocalSone(String) local Sones}, stops its {@link SoneInserter}
 898          * and remove the context from its identity.
 899          *
 900          * @param sone
 901          *            The Sone to delete
 902          */
 903         public void deleteSone(Sone sone) {
 904                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
 905                         logger.log(Level.WARNING, "Tried to delete Sone of non-own identity: %s", sone);
 906                         return;
 907                 }
 908                 synchronized (localSones) {
 909                         if (!localSones.containsKey(sone.getId())) {
 910                                 logger.log(Level.WARNING, "Tried to delete non-local Sone: %s", sone);
 911                                 return;
 912                         }
 913                         localSones.remove(sone.getId());
 914                         soneInserters.remove(sone).stop();
 915                 }
 916                 identityManager.removeContext((OwnIdentity) sone.getIdentity(), "Sone");
 917                 identityManager.removeProperty((OwnIdentity) sone.getIdentity(), "Sone.LatestEdition");
 918                 try {
 919                         configuration.getLongValue("Sone/" + sone.getId() + "/Time").setValue(null);
 920                 } catch (ConfigurationException ce1) {
 921                         logger.log(Level.WARNING, "Could not remove Sone from configuration!", ce1);
 922                 }
 923         }
 924
 925         /**
 926          * Loads and updates the given Sone from the configuration. If any error is
 927          * encountered, loading is aborted and the given Sone is not changed.
 928          *
 929          * @param sone
 930          *            The Sone to load and update
 931          */
 932         public void loadSone(Sone sone) {
 933                 if (!isLocalSone(sone)) {
 934                         logger.log(Level.FINE, "Tried to load non-local Sone: %s", sone);
 935                         return;
 936                 }
 937
 938                 /* load Sone. */
 939                 String sonePrefix = "Sone/" + sone.getId();
 940                 Long soneTime = configuration.getLongValue(sonePrefix + "/Time").getValue(null);
 941                 if (soneTime == null) {
 942                         logger.log(Level.INFO, "Could not load Sone because no Sone has been saved.");
 943                         return;
 944                 }
 945                 String lastInsertFingerprint = configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").getValue("");
 946
 947                 /* load profile. */
 948                 Profile profile = new Profile();
 949                 profile.setFirstName(configuration.getStringValue(sonePrefix + "/Profile/FirstName").getValue(null));
 950                 profile.setMiddleName(configuration.getStringValue(sonePrefix + "/Profile/MiddleName").getValue(null));
 951                 profile.setLastName(configuration.getStringValue(sonePrefix + "/Profile/LastName").getValue(null));
 952                 profile.setBirthDay(configuration.getIntValue(sonePrefix + "/Profile/BirthDay").getValue(null));
 953                 profile.setBirthMonth(configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").getValue(null));
 954                 profile.setBirthYear(configuration.getIntValue(sonePrefix + "/Profile/BirthYear").getValue(null));
 955
 956                 /* load posts. */
 957                 Set<Post> posts = new HashSet<Post>();
 958                 while (true) {
 959                         String postPrefix = sonePrefix + "/Posts/" + posts.size();
 960                         String postId = configuration.getStringValue(postPrefix + "/ID").getValue(null);
 961                         if (postId == null) {
 962                                 break;
 963                         }
 964                         long postTime = configuration.getLongValue(postPrefix + "/Time").getValue((long) 0);
 965                         String postText = configuration.getStringValue(postPrefix + "/Text").getValue(null);
 966                         if ((postTime == 0) || (postText == null)) {
 967                                 logger.log(Level.WARNING, "Invalid post found, aborting load!");
 968                                 return;
 969                         }
 970                         posts.add(getPost(postId).setSone(sone).setTime(postTime).setText(postText));
 971                 }
 972
 973                 /* load replies. */
 974                 Set<Reply> replies = new HashSet<Reply>();
 975                 while (true) {
 976                         String replyPrefix = sonePrefix + "/Replies/" + replies.size();
 977                         String replyId = configuration.getStringValue(replyPrefix + "/ID").getValue(null);
 978                         if (replyId == null) {
 979                                 break;
 980                         }
 981                         String postId = configuration.getStringValue(replyPrefix + "/Post/ID").getValue(null);
 982                         long replyTime = configuration.getLongValue(replyPrefix + "/Time").getValue((long) 0);
 983                         String replyText = configuration.getStringValue(replyPrefix + "/Text").getValue(null);
 984                         if ((postId == null) || (replyTime == 0) || (replyText == null)) {
 985                                 logger.log(Level.WARNING, "Invalid reply found, aborting load!");
 986                                 return;
 987                         }
 988                         replies.add(getReply(replyId).setSone(sone).setPost(getPost(postId)).setTime(replyTime).setText(replyText));
 989                 }
 990
 991                 /* load post likes. */
 992                 Set<String> likedPostIds = new HashSet<String>();
 993                 while (true) {
 994                         String likedPostId = configuration.getStringValue(sonePrefix + "/Likes/Post/" + likedPostIds.size() + "/ID").getValue(null);
 995                         if (likedPostId == null) {
 996                                 break;
 997                         }
 998                         likedPostIds.add(likedPostId);
 999                 }
1000
1001                 /* load reply likes. */
1002                 Set<String> likedReplyIds = new HashSet<String>();
1003                 while (true) {
1004                         String likedReplyId = configuration.getStringValue(sonePrefix + "/Likes/Reply/" + likedReplyIds.size() + "/ID").getValue(null);
1005                         if (likedReplyId == null) {
1006                                 break;
1007                         }
1008                         likedReplyIds.add(likedReplyId);
1009                 }
1010
1011                 /* load friends. */
1012                 Set<String> friends = new HashSet<String>();
1013                 while (true) {
1014                         String friendId = configuration.getStringValue(sonePrefix + "/Friends/" + friends.size() + "/ID").getValue(null);
1015                         if (friendId == null) {
1016                                 break;
1017                         }
1018                         friends.add(friendId);
1019                 }
1020
1021                 /* if we’re still here, Sone was loaded successfully. */
1022                 synchronized (sone) {
1023                         sone.setTime(soneTime);
1024                         sone.setProfile(profile);
1025                         sone.setPosts(posts);
1026                         sone.setReplies(replies);
1027                         sone.setLikePostIds(likedPostIds);
1028                         sone.setLikeReplyIds(likedReplyIds);
1029                         sone.setFriends(friends);
1030                         soneInserters.get(sone).setLastInsertFingerprint(lastInsertFingerprint);
1031                 }
1032                 synchronized (newSones) {
1033                         for (String friend : friends) {
1034                                 knownSones.add(friend);
1035                         }
1036                 }
1037                 synchronized (newPosts) {
1038                         for (Post post : posts) {
1039                                 knownPosts.add(post.getId());
1040                         }
1041                 }
1042                 synchronized (newReplies) {
1043                         for (Reply reply : replies) {
1044                                 knownReplies.add(reply.getId());
1045                         }
1046                 }
1047         }
1048
1049         /**
1050          * Saves the given Sone. This will persist all local settings for the given
1051          * Sone, such as the friends list and similar, private options.
1052          *
1053          * @param sone
1054          *            The Sone to save
1055          */
1056         public void saveSone(Sone sone) {
1057                 if (!isLocalSone(sone)) {
1058                         logger.log(Level.FINE, "Tried to save non-local Sone: %s", sone);
1059                         return;
1060                 }
1061                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
1062                         logger.log(Level.WARNING, "Local Sone without OwnIdentity found, refusing to save: %s", sone);
1063                         return;
1064                 }
1065
1066                 logger.log(Level.INFO, "Saving Sone: %s", sone);
1067                 identityManager.setProperty((OwnIdentity) sone.getIdentity(), "Sone.LatestEdition", String.valueOf(sone.getLatestEdition()));
1068                 try {
1069                         /* save Sone into configuration. */
1070                         String sonePrefix = "Sone/" + sone.getId();
1071                         configuration.getLongValue(sonePrefix + "/Time").setValue(sone.getTime());
1072                         configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").setValue(soneInserters.get(sone).getLastInsertFingerprint());
1073
1074                         /* save profile. */
1075                         Profile profile = sone.getProfile();
1076                         configuration.getStringValue(sonePrefix + "/Profile/FirstName").setValue(profile.getFirstName());
1077                         configuration.getStringValue(sonePrefix + "/Profile/MiddleName").setValue(profile.getMiddleName());
1078                         configuration.getStringValue(sonePrefix + "/Profile/LastName").setValue(profile.getLastName());
1079                         configuration.getIntValue(sonePrefix + "/Profile/BirthDay").setValue(profile.getBirthDay());
1080                         configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").setValue(profile.getBirthMonth());
1081                         configuration.getIntValue(sonePrefix + "/Profile/BirthYear").setValue(profile.getBirthYear());
1082
1083                         /* save posts. */
1084                         int postCounter = 0;
1085                         for (Post post : sone.getPosts()) {
1086                                 String postPrefix = sonePrefix + "/Posts/" + postCounter++;
1087                                 configuration.getStringValue(postPrefix + "/ID").setValue(post.getId());
1088                                 configuration.getLongValue(postPrefix + "/Time").setValue(post.getTime());
1089                                 configuration.getStringValue(postPrefix + "/Text").setValue(post.getText());
1090                         }
1091                         configuration.getStringValue(sonePrefix + "/Posts/" + postCounter + "/ID").setValue(null);
1092
1093                         /* save replies. */
1094                         int replyCounter = 0;
1095                         for (Reply reply : sone.getReplies()) {
1096                                 String replyPrefix = sonePrefix + "/Replies/" + replyCounter++;
1097                                 configuration.getStringValue(replyPrefix + "/ID").setValue(reply.getId());
1098                                 configuration.getStringValue(replyPrefix + "/Post/ID").setValue(reply.getPost().getId());
1099                                 configuration.getLongValue(replyPrefix + "/Time").setValue(reply.getTime());
1100                                 configuration.getStringValue(replyPrefix + "/Text").setValue(reply.getText());
1101                         }
1102                         configuration.getStringValue(sonePrefix + "/Replies/" + replyCounter + "/ID").setValue(null);
1103
1104                         /* save post likes. */
1105                         int postLikeCounter = 0;
1106                         for (String postId : sone.getLikedPostIds()) {
1107                                 configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter++ + "/ID").setValue(postId);
1108                         }
1109                         configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter + "/ID").setValue(null);
1110
1111                         /* save reply likes. */
1112                         int replyLikeCounter = 0;
1113                         for (String replyId : sone.getLikedReplyIds()) {
1114                                 configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter++ + "/ID").setValue(replyId);
1115                         }
1116                         configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter + "/ID").setValue(null);
1117
1118                         /* save friends. */
1119                         int friendCounter = 0;
1120                         for (String friendId : sone.getFriends()) {
1121                                 configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter++ + "/ID").setValue(friendId);
1122                         }
1123                         configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter + "/ID").setValue(null);
1124
1125                         logger.log(Level.INFO, "Sone %s saved.", sone);
1126                 } catch (ConfigurationException ce1) {
1127                         logger.log(Level.WARNING, "Could not save Sone: " + sone, ce1);
1128                 }
1129         }
1130
1131         /**
1132          * Creates a new post.
1133          *
1134          * @param sone
1135          *            The Sone that creates the post
1136          * @param text
1137          *            The text of the post
1138          */
1139         public void createPost(Sone sone, String text) {
1140                 createPost(sone, System.currentTimeMillis(), text);
1141         }
1142
1143         /**
1144          * Creates a new post.
1145          *
1146          * @param sone
1147          *            The Sone that creates the post
1148          * @param time
1149          *            The time of the post
1150          * @param text
1151          *            The text of the post
1152          */
1153         public void createPost(Sone sone, long time, String text) {
1154                 if (!isLocalSone(sone)) {
1155                         logger.log(Level.FINE, "Tried to create post for non-local Sone: %s", sone);
1156                         return;
1157                 }
1158                 Post post = new Post(sone, time, text);
1159                 synchronized (posts) {
1160                         posts.put(post.getId(), post);
1161                 }
1162                 synchronized (newPosts) {
1163                         knownPosts.add(post.getId());
1164                 }
1165                 sone.addPost(post);
1166                 saveSone(sone);
1167         }
1168
1169         /**
1170          * Deletes the given post.
1171          *
1172          * @param post
1173          *            The post to delete
1174          */
1175         public void deletePost(Post post) {
1176                 if (!isLocalSone(post.getSone())) {
1177                         logger.log(Level.WARNING, "Tried to delete post of non-local Sone: %s", post.getSone());
1178                         return;
1179                 }
1180                 post.getSone().removePost(post);
1181                 synchronized (posts) {
1182                         posts.remove(post.getId());
1183                 }
1184                 saveSone(post.getSone());
1185         }
1186
1187         /**
1188          * Creates a new reply.
1189          *
1190          * @param sone
1191          *            The Sone that creates the reply
1192          * @param post
1193          *            The post that this reply refers to
1194          * @param text
1195          *            The text of the reply
1196          * @return The created reply
1197          */
1198         public Reply createReply(Sone sone, Post post, String text) {
1199                 return createReply(sone, post, System.currentTimeMillis(), text);
1200         }
1201
1202         /**
1203          * Creates a new reply.
1204          *
1205          * @param sone
1206          *            The Sone that creates the reply
1207          * @param post
1208          *            The post that this reply refers to
1209          * @param time
1210          *            The time of the reply
1211          * @param text
1212          *            The text of the reply
1213          * @return The created reply
1214          */
1215         public Reply createReply(Sone sone, Post post, long time, String text) {
1216                 if (!isLocalSone(sone)) {
1217                         logger.log(Level.FINE, "Tried to create reply for non-local Sone: %s", sone);
1218                         return null;
1219                 }
1220                 Reply reply = new Reply(sone, post, System.currentTimeMillis(), text);
1221                 synchronized (replies) {
1222                         replies.put(reply.getId(), reply);
1223                 }
1224                 synchronized (newReplies) {
1225                         knownReplies.add(reply.getId());
1226                 }
1227                 sone.addReply(reply);
1228                 saveSone(sone);
1229                 return reply;
1230         }
1231
1232         /**
1233          * Deletes the given reply.
1234          *
1235          * @param reply
1236          *            The reply to delete
1237          */
1238         public void deleteReply(Reply reply) {
1239                 Sone sone = reply.getSone();
1240                 if (!isLocalSone(sone)) {
1241                         logger.log(Level.FINE, "Tried to delete non-local reply: %s", reply);
1242                         return;
1243                 }
1244                 synchronized (replies) {
1245                         replies.remove(reply.getId());
1246                 }
1247                 sone.removeReply(reply);
1248                 saveSone(sone);
1249         }
1250
1251         /**
1252          * Starts the core.
1253          */
1254         public void start() {
1255                 loadConfiguration();
1256         }
1257
1258         /**
1259          * Stops the core.
1260          */
1261         public void stop() {
1262                 synchronized (localSones) {
1263                         for (SoneInserter soneInserter : soneInserters.values()) {
1264                                 soneInserter.stop();
1265                         }
1266                 }
1267                 saveConfiguration();
1268                 stopped = true;
1269         }
1270
1271         //
1272         // PRIVATE METHODS
1273         //
1274
1275         /**
1276          * Loads the configuration.
1277          */
1278         @SuppressWarnings("unchecked")
1279         private void loadConfiguration() {
1280                 /* create options. */
1281                 options.addIntegerOption("InsertionDelay", new DefaultOption<Integer>(60, new OptionWatcher<Integer>() {
1282
1283                         @Override
1284                         public void optionChanged(Option<Integer> option, Integer oldValue, Integer newValue) {
1285                                 SoneInserter.setInsertionDelay(newValue);
1286                         }
1287
1288                 }));
1289                 options.addBooleanOption("SoneRescueMode", new DefaultOption<Boolean>(false));
1290                 options.addBooleanOption("ClearOnNextRestart", new DefaultOption<Boolean>(false));
1291                 options.addBooleanOption("ReallyClearOnNextRestart", new DefaultOption<Boolean>(false));
1292
1293                 /* read options from configuration. */
1294                 options.getBooleanOption("ClearOnNextRestart").set(configuration.getBooleanValue("Option/ClearOnNextRestart").getValue(null));
1295                 options.getBooleanOption("ReallyClearOnNextRestart").set(configuration.getBooleanValue("Option/ReallyClearOnNextRestart").getValue(null));
1296                 boolean clearConfiguration = options.getBooleanOption("ClearOnNextRestart").get() && options.getBooleanOption("ReallyClearOnNextRestart").get();
1297                 options.getBooleanOption("ClearOnNextRestart").set(null);
1298                 options.getBooleanOption("ReallyClearOnNextRestart").set(null);
1299                 if (clearConfiguration) {
1300                         /* stop loading the configuration. */
1301                         return;
1302                 }
1303
1304                 options.getIntegerOption("InsertionDelay").set(configuration.getIntValue("Option/InsertionDelay").getValue(null));
1305                 options.getBooleanOption("SoneRescueMode").set(configuration.getBooleanValue("Option/SoneRescueMode").getValue(null));
1306
1307                 /* load known Sones. */
1308                 int soneCounter = 0;
1309                 while (true) {
1310                         String knownSoneId = configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").getValue(null);
1311                         if (knownSoneId == null) {
1312                                 break;
1313                         }
1314                         synchronized (newSones) {
1315                                 knownSones.add(knownSoneId);
1316                         }
1317                 }
1318
1319                 /* load known posts. */
1320                 int postCounter = 0;
1321                 while (true) {
1322                         String knownPostId = configuration.getStringValue("KnownPosts/" + postCounter++ + "/ID").getValue(null);
1323                         if (knownPostId == null) {
1324                                 break;
1325                         }
1326                         synchronized (newPosts) {
1327                                 knownPosts.add(knownPostId);
1328                         }
1329                 }
1330
1331                 /* load known replies. */
1332                 int replyCounter = 0;
1333                 while (true) {
1334                         String knownReplyId = configuration.getStringValue("KnownReplies/" + replyCounter++ + "/ID").getValue(null);
1335                         if (knownReplyId == null) {
1336                                 break;
1337                         }
1338                         synchronized (newReplies) {
1339                                 knownReplies.add(knownReplyId);
1340                         }
1341                 }
1342
1343         }
1344
1345         /**
1346          * Saves the current options.
1347          */
1348         private void saveConfiguration() {
1349                 /* store the options first. */
1350                 try {
1351                         configuration.getIntValue("Option/InsertionDelay").setValue(options.getIntegerOption("InsertionDelay").getReal());
1352                         configuration.getBooleanValue("Option/SoneRescueMode").setValue(options.getBooleanOption("SoneRescueMode").getReal());
1353                         configuration.getBooleanValue("Option/ClearOnNextRestart").setValue(options.getBooleanOption("ClearOnNextRestart").getReal());
1354                         configuration.getBooleanValue("Option/ReallyClearOnNextRestart").setValue(options.getBooleanOption("ReallyClearOnNextRestart").getReal());
1355
1356                         /* save known Sones. */
1357                         int soneCounter = 0;
1358                         synchronized (newSones) {
1359                                 for (String knownSoneId : knownSones) {
1360                                         configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").setValue(knownSoneId);
1361                                 }
1362                                 configuration.getStringValue("KnownSone/" + soneCounter + "/ID").setValue(null);
1363                         }
1364
1365                         /* save known posts. */
1366                         int postCounter = 0;
1367                         synchronized (newPosts) {
1368                                 for (String knownPostId : knownPosts) {
1369                                         configuration.getStringValue("KnownPosts/" + postCounter++ + "/ID").setValue(knownPostId);
1370                                 }
1371                                 configuration.getStringValue("KnownPosts/" + postCounter + "/ID").setValue(null);
1372                         }
1373
1374                         /* save known replies. */
1375                         int replyCounter = 0;
1376                         synchronized (newReplies) {
1377                                 for (String knownReplyId : knownReplies) {
1378                                         configuration.getStringValue("KnownReplies/" + replyCounter++ + "/ID").setValue(knownReplyId);
1379                                 }
1380                                 configuration.getStringValue("KnownReplies/" + replyCounter + "/ID").setValue(null);
1381                         }
1382
1383                 } catch (ConfigurationException ce1) {
1384                         logger.log(Level.SEVERE, "Could not store configuration!", ce1);
1385                 }
1386         }
1387
1388         /**
1389          * Generate a Sone URI from the given URI and latest edition.
1390          *
1391          * @param uriString
1392          *            The URI to derive the Sone URI from
1393          * @return The derived URI
1394          */
1395         private FreenetURI getSoneUri(String uriString) {
1396                 try {
1397                         FreenetURI uri = new FreenetURI(uriString).setDocName("Sone").setMetaString(new String[0]);
1398                         return uri;
1399                 } catch (MalformedURLException mue1) {
1400                         logger.log(Level.WARNING, "Could not create Sone URI from URI: " + uriString, mue1);
1401                         return null;
1402                 }
1403         }
1404
1405         //
1406         // INTERFACE IdentityListener
1407         //
1408
1409         /**
1410          * {@inheritDoc}
1411          */
1412         @Override
1413         public void ownIdentityAdded(OwnIdentity ownIdentity) {
1414                 logger.log(Level.FINEST, "Adding OwnIdentity: " + ownIdentity);
1415                 if (ownIdentity.hasContext("Sone")) {
1416                         addLocalSone(ownIdentity);
1417                 }
1418         }
1419
1420         /**
1421          * {@inheritDoc}
1422          */
1423         @Override
1424         public void ownIdentityRemoved(OwnIdentity ownIdentity) {
1425                 logger.log(Level.FINEST, "Removing OwnIdentity: " + ownIdentity);
1426         }
1427
1428         /**
1429          * {@inheritDoc}
1430          */
1431         @Override
1432         public void identityAdded(Identity identity) {
1433                 logger.log(Level.FINEST, "Adding Identity: " + identity);
1434                 addRemoteSone(identity);
1435         }
1436
1437         /**
1438          * {@inheritDoc}
1439          */
1440         @Override
1441         public void identityUpdated(final Identity identity) {
1442                 new Thread(new Runnable() {
1443
1444                         @Override
1445                         @SuppressWarnings("synthetic-access")
1446                         public void run() {
1447                                 Sone sone = getRemoteSone(identity.getId());
1448                                 soneDownloader.fetchSone(sone);
1449                         }
1450                 }).start();
1451         }
1452
1453         /**
1454          * {@inheritDoc}
1455          */
1456         @Override
1457         public void identityRemoved(Identity identity) {
1458                 /* TODO */
1459         }
1460
1461 }