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.Album;
  35 import net.pterodactylus.sone.data.Client;
  36 import net.pterodactylus.sone.data.Post;
  37 import net.pterodactylus.sone.data.Profile;
  38 import net.pterodactylus.sone.data.Reply;
  39 import net.pterodactylus.sone.data.Sone;
  40 import net.pterodactylus.sone.freenet.wot.Identity;
  41 import net.pterodactylus.sone.freenet.wot.IdentityListener;
  42 import net.pterodactylus.sone.freenet.wot.IdentityManager;
  43 import net.pterodactylus.sone.freenet.wot.OwnIdentity;
  44 import net.pterodactylus.sone.main.SonePlugin;
  45 import net.pterodactylus.util.config.Configuration;
  46 import net.pterodactylus.util.config.ConfigurationException;
  47 import net.pterodactylus.util.logging.Logging;
  48 import net.pterodactylus.util.number.Numbers;
  49 import net.pterodactylus.util.version.Version;
  50 import freenet.keys.FreenetURI;
  51
  52 /**
  53  * The Sone core.
  54  *
  55  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  56  */
  57 public class Core implements IdentityListener, UpdateListener {
  58
  59         /**
  60          * Enumeration for the possible states of a {@link Sone}.
  61          *
  62          * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  63          */
  64         public enum SoneStatus {
  65
  66                 /** The Sone is unknown, i.e. not yet downloaded. */
  67                 unknown,
  68
  69                 /** The Sone is idle, i.e. not being downloaded or inserted. */
  70                 idle,
  71
  72                 /** The Sone is currently being inserted. */
  73                 inserting,
  74
  75                 /** The Sone is currently being downloaded. */
  76                 downloading,
  77         }
  78
  79         /** The logger. */
  80         private static final Logger logger = Logging.getLogger(Core.class);
  81
  82         /** The options. */
  83         private final Options options = new Options();
  84
  85         /** The core listener manager. */
  86         private final CoreListenerManager coreListenerManager = new CoreListenerManager(this);
  87
  88         /** The configuration. */
  89         private Configuration configuration;
  90
  91         /** Whether we’re currently saving the configuration. */
  92         private boolean storingConfiguration = false;
  93
  94         /** The identity manager. */
  95         private final IdentityManager identityManager;
  96
  97         /** Interface to freenet. */
  98         private final FreenetInterface freenetInterface;
  99
 100         /** The Sone downloader. */
 101         private final SoneDownloader soneDownloader;
 102
 103         /** The update checker. */
 104         private final UpdateChecker updateChecker;
 105
 106         /** Whether the core has been stopped. */
 107         private volatile boolean stopped;
 108
 109         /** The Sones’ statuses. */
 110         /* synchronize access on itself. */
 111         private final Map<Sone, SoneStatus> soneStatuses = new HashMap<Sone, SoneStatus>();
 112
 113         /** Locked local Sones. */
 114         /* synchronize on itself. */
 115         private final Set<Sone> lockedSones = new HashSet<Sone>();
 116
 117         /** Sone inserters. */
 118         /* synchronize access on this on localSones. */
 119         private final Map<Sone, SoneInserter> soneInserters = new HashMap<Sone, SoneInserter>();
 120
 121         /** All local Sones. */
 122         /* synchronize access on this on itself. */
 123         private Map<String, Sone> localSones = new HashMap<String, Sone>();
 124
 125         /** All remote Sones. */
 126         /* synchronize access on this on itself. */
 127         private Map<String, Sone> remoteSones = new HashMap<String, Sone>();
 128
 129         /** All new Sones. */
 130         private Set<String> newSones = new HashSet<String>();
 131
 132         /** All known Sones. */
 133         /* synchronize access on {@link #newSones}. */
 134         private Set<String> knownSones = new HashSet<String>();
 135
 136         /** All posts. */
 137         private Map<String, Post> posts = new HashMap<String, Post>();
 138
 139         /** All new posts. */
 140         private Set<String> newPosts = new HashSet<String>();
 141
 142         /** All known posts. */
 143         /* synchronize access on {@link #newPosts}. */
 144         private Set<String> knownPosts = new HashSet<String>();
 145
 146         /** All replies. */
 147         private Map<String, Reply> replies = new HashMap<String, Reply>();
 148
 149         /** All new replies. */
 150         private Set<String> newReplies = new HashSet<String>();
 151
 152         /** All known replies. */
 153         private Set<String> knownReplies = new HashSet<String>();
 154
 155         /** All known albums. */
 156         private Map<String, Album> albums = new HashMap<String, Album>();
 157
 158         /**
 159          * Creates a new core.
 160          *
 161          * @param configuration
 162          *            The configuration of the core
 163          * @param freenetInterface
 164          *            The freenet interface
 165          * @param identityManager
 166          *            The identity manager
 167          */
 168         public Core(Configuration configuration, FreenetInterface freenetInterface, IdentityManager identityManager) {
 169                 this.configuration = configuration;
 170                 this.freenetInterface = freenetInterface;
 171                 this.identityManager = identityManager;
 172                 this.soneDownloader = new SoneDownloader(this, freenetInterface);
 173                 this.updateChecker = new UpdateChecker(freenetInterface);
 174         }
 175
 176         //
 177         // LISTENER MANAGEMENT
 178         //
 179
 180         /**
 181          * Adds a new core listener.
 182          *
 183          * @param coreListener
 184          *            The listener to add
 185          */
 186         public void addCoreListener(CoreListener coreListener) {
 187                 coreListenerManager.addListener(coreListener);
 188         }
 189
 190         /**
 191          * Removes a core listener.
 192          *
 193          * @param coreListener
 194          *            The listener to remove
 195          */
 196         public void removeCoreListener(CoreListener coreListener) {
 197                 coreListenerManager.removeListener(coreListener);
 198         }
 199
 200         //
 201         // ACCESSORS
 202         //
 203
 204         /**
 205          * Sets the configuration to use. This will automatically save the current
 206          * configuration to the given configuration.
 207          *
 208          * @param configuration
 209          *            The new configuration to use
 210          */
 211         public void setConfiguration(Configuration configuration) {
 212                 this.configuration = configuration;
 213                 saveConfiguration();
 214         }
 215
 216         /**
 217          * Returns the options used by the core.
 218          *
 219          * @return The options of the core
 220          */
 221         public Options getOptions() {
 222                 return options;
 223         }
 224
 225         /**
 226          * Returns whether the “Sone rescue mode” is currently activated.
 227          *
 228          * @return {@code true} if the “Sone rescue mode” is currently activated,
 229          *         {@code false} if it is not
 230          */
 231         public boolean isSoneRescueMode() {
 232                 return options.getBooleanOption("SoneRescueMode").get();
 233         }
 234
 235         /**
 236          * Returns the identity manager used by the core.
 237          *
 238          * @return The identity manager
 239          */
 240         public IdentityManager getIdentityManager() {
 241                 return identityManager;
 242         }
 243
 244         /**
 245          * Returns the update checker.
 246          *
 247          * @return The update checker
 248          */
 249         public UpdateChecker getUpdateChecker() {
 250                 return updateChecker;
 251         }
 252
 253         /**
 254          * Returns the status of the given Sone.
 255          *
 256          * @param sone
 257          *            The Sone to get the status for
 258          * @return The status of the Sone
 259          */
 260         public SoneStatus getSoneStatus(Sone sone) {
 261                 synchronized (soneStatuses) {
 262                         return soneStatuses.get(sone);
 263                 }
 264         }
 265
 266         /**
 267          * Sets the status of the given Sone.
 268          *
 269          * @param sone
 270          *            The Sone to set the status of
 271          * @param soneStatus
 272          *            The status to set
 273          */
 274         public void setSoneStatus(Sone sone, SoneStatus soneStatus) {
 275                 synchronized (soneStatuses) {
 276                         soneStatuses.put(sone, soneStatus);
 277                 }
 278         }
 279
 280         /**
 281          * Returns whether the given Sone is currently locked.
 282          *
 283          * @param sone
 284          *            The sone to check
 285          * @return {@code true} if the Sone is locked, {@code false} if it is not
 286          */
 287         public boolean isLocked(Sone sone) {
 288                 synchronized (lockedSones) {
 289                         return lockedSones.contains(sone);
 290                 }
 291         }
 292
 293         /**
 294          * Returns all Sones, remote and local.
 295          *
 296          * @return All Sones
 297          */
 298         public Set<Sone> getSones() {
 299                 Set<Sone> allSones = new HashSet<Sone>();
 300                 allSones.addAll(getLocalSones());
 301                 allSones.addAll(getRemoteSones());
 302                 return allSones;
 303         }
 304
 305         /**
 306          * Returns the Sone with the given ID, regardless whether it’s local or
 307          * remote.
 308          *
 309          * @param id
 310          *            The ID of the Sone to get
 311          * @return The Sone with the given ID, or {@code null} if there is no such
 312          *         Sone
 313          */
 314         public Sone getSone(String id) {
 315                 return getSone(id, true);
 316         }
 317
 318         /**
 319          * Returns the Sone with the given ID, regardless whether it’s local or
 320          * remote.
 321          *
 322          * @param id
 323          *            The ID of the Sone to get
 324          * @param create
 325          *            {@code true} to create a new Sone if none exists,
 326          *            {@code false} to return {@code null} if a Sone with the given
 327          *            ID does not exist
 328          * @return The Sone with the given ID, or {@code null} if there is no such
 329          *         Sone
 330          */
 331         public Sone getSone(String id, boolean create) {
 332                 if (isLocalSone(id)) {
 333                         return getLocalSone(id);
 334                 }
 335                 return getRemoteSone(id, create);
 336         }
 337
 338         /**
 339          * Checks whether the core knows a Sone with the given ID.
 340          *
 341          * @param id
 342          *            The ID of the Sone
 343          * @return {@code true} if there is a Sone with the given ID, {@code false}
 344          *         otherwise
 345          */
 346         public boolean hasSone(String id) {
 347                 return isLocalSone(id) || isRemoteSone(id);
 348         }
 349
 350         /**
 351          * Returns whether the given Sone is a local Sone.
 352          *
 353          * @param sone
 354          *            The Sone to check for its locality
 355          * @return {@code true} if the given Sone is local, {@code false} otherwise
 356          */
 357         public boolean isLocalSone(Sone sone) {
 358                 synchronized (localSones) {
 359                         return localSones.containsKey(sone.getId());
 360                 }
 361         }
 362
 363         /**
 364          * Returns whether the given ID is the ID of a local Sone.
 365          *
 366          * @param id
 367          *            The Sone ID to check for its locality
 368          * @return {@code true} if the given ID is a local Sone, {@code false}
 369          *         otherwise
 370          */
 371         public boolean isLocalSone(String id) {
 372                 synchronized (localSones) {
 373                         return localSones.containsKey(id);
 374                 }
 375         }
 376
 377         /**
 378          * Returns all local Sones.
 379          *
 380          * @return All local Sones
 381          */
 382         public Set<Sone> getLocalSones() {
 383                 synchronized (localSones) {
 384                         return new HashSet<Sone>(localSones.values());
 385                 }
 386         }
 387
 388         /**
 389          * Returns the local Sone with the given ID.
 390          *
 391          * @param id
 392          *            The ID of the Sone to get
 393          * @return The Sone with the given ID
 394          */
 395         public Sone getLocalSone(String id) {
 396                 return getLocalSone(id, true);
 397         }
 398
 399         /**
 400          * Returns the local Sone with the given ID, optionally creating a new Sone.
 401          *
 402          * @param id
 403          *            The ID of the Sone
 404          * @param create
 405          *            {@code true} to create a new Sone if none exists,
 406          *            {@code false} to return null if none exists
 407          * @return The Sone with the given ID, or {@code null}
 408          */
 409         public Sone getLocalSone(String id, boolean create) {
 410                 synchronized (localSones) {
 411                         Sone sone = localSones.get(id);
 412                         if ((sone == null) && create) {
 413                                 sone = new Sone(id);
 414                                 localSones.put(id, sone);
 415                         }
 416                         return sone;
 417                 }
 418         }
 419
 420         /**
 421          * Returns all remote Sones.
 422          *
 423          * @return All remote Sones
 424          */
 425         public Set<Sone> getRemoteSones() {
 426                 synchronized (remoteSones) {
 427                         return new HashSet<Sone>(remoteSones.values());
 428                 }
 429         }
 430
 431         /**
 432          * Returns the remote Sone with the given ID.
 433          *
 434          * @param id
 435          *            The ID of the remote Sone to get
 436          * @return The Sone with the given ID
 437          */
 438         public Sone getRemoteSone(String id) {
 439                 return getRemoteSone(id, true);
 440         }
 441
 442         /**
 443          * Returns the remote Sone with the given ID.
 444          *
 445          * @param id
 446          *            The ID of the remote Sone to get
 447          * @param create
 448          *            {@code true} to always create a Sone, {@code false} to return
 449          *            {@code null} if no Sone with the given ID exists
 450          * @return The Sone with the given ID
 451          */
 452         public Sone getRemoteSone(String id, boolean create) {
 453                 synchronized (remoteSones) {
 454                         Sone sone = remoteSones.get(id);
 455                         if ((sone == null) && create) {
 456                                 sone = new Sone(id);
 457                                 remoteSones.put(id, sone);
 458                         }
 459                         return sone;
 460                 }
 461         }
 462
 463         /**
 464          * Returns whether the given Sone is a remote Sone.
 465          *
 466          * @param sone
 467          *            The Sone to check
 468          * @return {@code true} if the given Sone is a remote Sone, {@code false}
 469          *         otherwise
 470          */
 471         public boolean isRemoteSone(Sone sone) {
 472                 synchronized (remoteSones) {
 473                         return remoteSones.containsKey(sone.getId());
 474                 }
 475         }
 476
 477         /**
 478          * Returns whether the Sone with the given ID is a remote Sone.
 479          *
 480          * @param id
 481          *            The ID of the Sone to check
 482          * @return {@code true} if the Sone with the given ID is a remote Sone,
 483          *         {@code false} otherwise
 484          */
 485         public boolean isRemoteSone(String id) {
 486                 synchronized (remoteSones) {
 487                         return remoteSones.containsKey(id);
 488                 }
 489         }
 490
 491         /**
 492          * Returns whether the given Sone is a new Sone. After this check, the Sone
 493          * is marked as known, i.e. a second call with the same parameters will
 494          * always yield {@code false}.
 495          *
 496          * @param sone
 497          *            The sone to check for
 498          * @return {@code true} if the given Sone is new, false otherwise
 499          */
 500         public boolean isNewSone(Sone sone) {
 501                 synchronized (newSones) {
 502                         boolean isNew = !knownSones.contains(sone.getId()) && newSones.remove(sone.getId());
 503                         knownSones.add(sone.getId());
 504                         if (isNew) {
 505                                 coreListenerManager.fireMarkSoneKnown(sone);
 506                         }
 507                         return isNew;
 508                 }
 509         }
 510
 511         /**
 512          * Returns whether the given Sone has been modified.
 513          *
 514          * @param sone
 515          *            The Sone to check for modifications
 516          * @return {@code true} if a modification has been detected in the Sone,
 517          *         {@code false} otherwise
 518          */
 519         public boolean isModifiedSone(Sone sone) {
 520                 return (soneInserters.containsKey(sone)) ? soneInserters.get(sone).isModified() : false;
 521         }
 522
 523         /**
 524          * Returns the post with the given ID.
 525          *
 526          * @param postId
 527          *            The ID of the post to get
 528          * @return The post, or {@code null} if there is no such post
 529          */
 530         public Post getPost(String postId) {
 531                 return getPost(postId, true);
 532         }
 533
 534         /**
 535          * Returns the post with the given ID, optionally creating a new post.
 536          *
 537          * @param postId
 538          *            The ID of the post to get
 539          * @param create
 540          *            {@code true} it create a new post if no post with the given ID
 541          *            exists, {@code false} to return {@code null}
 542          * @return The post, or {@code null} if there is no such post
 543          */
 544         public Post getPost(String postId, boolean create) {
 545                 synchronized (posts) {
 546                         Post post = posts.get(postId);
 547                         if ((post == null) && create) {
 548                                 post = new Post(postId);
 549                                 posts.put(postId, post);
 550                         }
 551                         return post;
 552                 }
 553         }
 554
 555         /**
 556          * Returns whether the given post ID is new. After this method returns it is
 557          * marked a known post ID.
 558          *
 559          * @param postId
 560          *            The post ID
 561          * @return {@code true} if the post is considered to be new, {@code false}
 562          *         otherwise
 563          */
 564         public boolean isNewPost(String postId) {
 565                 return isNewPost(postId, true);
 566         }
 567
 568         /**
 569          * Returns whether the given post ID is new. If {@code markAsKnown} is
 570          * {@code true} then after this method returns the post ID is marked a known
 571          * post ID.
 572          *
 573          * @param postId
 574          *            The post ID
 575          * @param markAsKnown
 576          *            {@code true} to mark the post ID as known, {@code false} to
 577          *            not to mark it as known
 578          * @return {@code true} if the post is considered to be new, {@code false}
 579          *         otherwise
 580          */
 581         public boolean isNewPost(String postId, boolean markAsKnown) {
 582                 synchronized (newPosts) {
 583                         boolean isNew = !knownPosts.contains(postId) && newPosts.contains(postId);
 584                         if (markAsKnown) {
 585                                 Post post = getPost(postId, false);
 586                                 if (post != null) {
 587                                         markPostKnown(post);
 588                                 }
 589                         }
 590                         return isNew;
 591                 }
 592         }
 593
 594         /**
 595          * Returns the reply with the given ID. If there is no reply with the given
 596          * ID yet, a new one is created.
 597          *
 598          * @param replyId
 599          *            The ID of the reply to get
 600          * @return The reply
 601          */
 602         public Reply getReply(String replyId) {
 603                 return getReply(replyId, true);
 604         }
 605
 606         /**
 607          * Returns the reply with the given ID. If there is no reply with the given
 608          * ID yet, a new one is created, unless {@code create} is false in which
 609          * case {@code null} is returned.
 610          *
 611          * @param replyId
 612          *            The ID of the reply to get
 613          * @param create
 614          *            {@code true} to always return a {@link Reply}, {@code false}
 615          *            to return {@code null} if no reply can be found
 616          * @return The reply, or {@code null} if there is no such reply
 617          */
 618         public Reply getReply(String replyId, boolean create) {
 619                 synchronized (replies) {
 620                         Reply reply = replies.get(replyId);
 621                         if (create && (reply == null)) {
 622                                 reply = new Reply(replyId);
 623                                 replies.put(replyId, reply);
 624                         }
 625                         return reply;
 626                 }
 627         }
 628
 629         /**
 630          * Returns all replies for the given post, order ascending by time.
 631          *
 632          * @param post
 633          *            The post to get all replies for
 634          * @return All replies for the given post
 635          */
 636         public List<Reply> getReplies(Post post) {
 637                 Set<Sone> sones = getSones();
 638                 List<Reply> replies = new ArrayList<Reply>();
 639                 for (Sone sone : sones) {
 640                         for (Reply reply : sone.getReplies()) {
 641                                 if (reply.getPost().equals(post)) {
 642                                         replies.add(reply);
 643                                 }
 644                         }
 645                 }
 646                 Collections.sort(replies, Reply.TIME_COMPARATOR);
 647                 return replies;
 648         }
 649
 650         /**
 651          * Returns whether the reply with the given ID is new.
 652          *
 653          * @param replyId
 654          *            The ID of the reply to check
 655          * @return {@code true} if the reply is considered to be new, {@code false}
 656          *         otherwise
 657          */
 658         public boolean isNewReply(String replyId) {
 659                 return isNewReply(replyId, true);
 660         }
 661
 662         /**
 663          * Returns whether the reply with the given ID is new.
 664          *
 665          * @param replyId
 666          *            The ID of the reply to check
 667          * @param markAsKnown
 668          *            {@code true} to mark the reply as known, {@code false} to not
 669          *            to mark it as known
 670          * @return {@code true} if the reply is considered to be new, {@code false}
 671          *         otherwise
 672          */
 673         public boolean isNewReply(String replyId, boolean markAsKnown) {
 674                 synchronized (newReplies) {
 675                         boolean isNew = !knownReplies.contains(replyId) && newReplies.contains(replyId);
 676                         if (markAsKnown) {
 677                                 Reply reply = getReply(replyId, false);
 678                                 if (reply != null) {
 679                                         markReplyKnown(reply);
 680                                 }
 681                         }
 682                         return isNew;
 683                 }
 684         }
 685
 686         /**
 687          * Returns all Sones that have liked the given post.
 688          *
 689          * @param post
 690          *            The post to get the liking Sones for
 691          * @return The Sones that like the given post
 692          */
 693         public Set<Sone> getLikes(Post post) {
 694                 Set<Sone> sones = new HashSet<Sone>();
 695                 for (Sone sone : getSones()) {
 696                         if (sone.getLikedPostIds().contains(post.getId())) {
 697                                 sones.add(sone);
 698                         }
 699                 }
 700                 return sones;
 701         }
 702
 703         /**
 704          * Returns all Sones that have liked the given reply.
 705          *
 706          * @param reply
 707          *            The reply to get the liking Sones for
 708          * @return The Sones that like the given reply
 709          */
 710         public Set<Sone> getLikes(Reply reply) {
 711                 Set<Sone> sones = new HashSet<Sone>();
 712                 for (Sone sone : getSones()) {
 713                         if (sone.getLikedReplyIds().contains(reply.getId())) {
 714                                 sones.add(sone);
 715                         }
 716                 }
 717                 return sones;
 718         }
 719
 720         /**
 721          * Returns the album with the given ID, creating a new album if no album
 722          * with the given ID can be found.
 723          *
 724          * @param albumId
 725          *            The ID of the album
 726          * @return The album with the given ID
 727          */
 728         public Album getAlbum(String albumId) {
 729                 return getAlbum(albumId, true);
 730         }
 731
 732         /**
 733          * Returns the album with the given ID, optionally creating a new album if
 734          * an album with the given ID can not be found.
 735          *
 736          * @param albumId
 737          *            The ID of the album
 738          * @param create
 739          *            {@code true} to create a new album if none exists for the
 740          *            given ID
 741          * @return The album with the given ID, or {@code null} if no album with the
 742          *         given ID exists and {@code create} is {@code false}
 743          */
 744         public Album getAlbum(String albumId, boolean create) {
 745                 synchronized (albums) {
 746                         Album album = albums.get(albumId);
 747                         if (create && (album == null)) {
 748                                 album = new Album(albumId);
 749                                 albums.put(albumId, album);
 750                         }
 751                         return album;
 752                 }
 753         }
 754
 755         //
 756         // ACTIONS
 757         //
 758
 759         /**
 760          * Locks the given Sone. A locked Sone will not be inserted by
 761          * {@link SoneInserter} until it is {@link #unlockSone(Sone) unlocked}
 762          * again.
 763          *
 764          * @param sone
 765          *            The sone to lock
 766          */
 767         public void lockSone(Sone sone) {
 768                 synchronized (lockedSones) {
 769                         if (lockedSones.add(sone)) {
 770                                 coreListenerManager.fireSoneLocked(sone);
 771                         }
 772                 }
 773         }
 774
 775         /**
 776          * Unlocks the given Sone.
 777          *
 778          * @see #lockSone(Sone)
 779          * @param sone
 780          *            The sone to unlock
 781          */
 782         public void unlockSone(Sone sone) {
 783                 synchronized (lockedSones) {
 784                         if (lockedSones.remove(sone)) {
 785                                 coreListenerManager.fireSoneUnlocked(sone);
 786                         }
 787                 }
 788         }
 789
 790         /**
 791          * Adds a local Sone from the given ID which has to be the ID of an own
 792          * identity.
 793          *
 794          * @param id
 795          *            The ID of an own identity to add a Sone for
 796          * @return The added (or already existing) Sone
 797          */
 798         public Sone addLocalSone(String id) {
 799                 synchronized (localSones) {
 800                         if (localSones.containsKey(id)) {
 801                                 logger.log(Level.FINE, "Tried to add known local Sone: %s", id);
 802                                 return localSones.get(id);
 803                         }
 804                         OwnIdentity ownIdentity = identityManager.getOwnIdentity(id);
 805                         if (ownIdentity == null) {
 806                                 logger.log(Level.INFO, "Invalid Sone ID: %s", id);
 807                                 return null;
 808                         }
 809                         return addLocalSone(ownIdentity);
 810                 }
 811         }
 812
 813         /**
 814          * Adds a local Sone from the given own identity.
 815          *
 816          * @param ownIdentity
 817          *            The own identity to create a Sone from
 818          * @return The added (or already existing) Sone
 819          */
 820         public Sone addLocalSone(OwnIdentity ownIdentity) {
 821                 if (ownIdentity == null) {
 822                         logger.log(Level.WARNING, "Given OwnIdentity is null!");
 823                         return null;
 824                 }
 825                 synchronized (localSones) {
 826                         final Sone sone;
 827                         try {
 828                                 sone = getLocalSone(ownIdentity.getId()).setIdentity(ownIdentity).setInsertUri(new FreenetURI(ownIdentity.getInsertUri())).setRequestUri(new FreenetURI(ownIdentity.getRequestUri()));
 829                         } catch (MalformedURLException mue1) {
 830                                 logger.log(Level.SEVERE, "Could not convert the Identity’s URIs to Freenet URIs: " + ownIdentity.getInsertUri() + ", " + ownIdentity.getRequestUri(), mue1);
 831                                 return null;
 832                         }
 833                         sone.setLatestEdition(Numbers.safeParseLong(ownIdentity.getProperty("Sone.LatestEdition"), (long) 0));
 834                         sone.setClient(new Client("Sone", SonePlugin.VERSION.toString()));
 835                         /* TODO - load posts ’n stuff */
 836                         localSones.put(ownIdentity.getId(), sone);
 837                         final SoneInserter soneInserter = new SoneInserter(this, freenetInterface, sone);
 838                         soneInserters.put(sone, soneInserter);
 839                         setSoneStatus(sone, SoneStatus.idle);
 840                         loadSone(sone);
 841                         if (!isSoneRescueMode()) {
 842                                 soneInserter.start();
 843                         }
 844                         new Thread(new Runnable() {
 845
 846                                 @Override
 847                                 @SuppressWarnings("synthetic-access")
 848                                 public void run() {
 849                                         if (!isSoneRescueMode()) {
 850                                                 soneDownloader.fetchSone(sone);
 851                                                 return;
 852                                         }
 853                                         logger.log(Level.INFO, "Trying to restore Sone from Freenet…");
 854                                         coreListenerManager.fireRescuingSone(sone);
 855                                         lockSone(sone);
 856                                         long edition = sone.getLatestEdition();
 857                                         while (!stopped && (edition >= 0) && isSoneRescueMode()) {
 858                                                 logger.log(Level.FINE, "Downloading edition " + edition + "…");
 859                                                 soneDownloader.fetchSone(sone, sone.getRequestUri().setKeyType("SSK").setDocName("Sone-" + edition));
 860                                                 --edition;
 861                                         }
 862                                         logger.log(Level.INFO, "Finished restoring Sone from Freenet, starting Inserter…");
 863                                         saveSone(sone);
 864                                         coreListenerManager.fireRescuedSone(sone);
 865                                         soneInserter.start();
 866                                 }
 867
 868                         }, "Sone Downloader").start();
 869                         return sone;
 870                 }
 871         }
 872
 873         /**
 874          * Creates a new Sone for the given own identity.
 875          *
 876          * @param ownIdentity
 877          *            The own identity to create a Sone for
 878          * @return The created Sone
 879          */
 880         public Sone createSone(OwnIdentity ownIdentity) {
 881                 identityManager.addContext(ownIdentity, "Sone");
 882                 Sone sone = addLocalSone(ownIdentity);
 883                 return sone;
 884         }
 885
 886         /**
 887          * Adds the Sone of the given identity.
 888          *
 889          * @param identity
 890          *            The identity whose Sone to add
 891          * @return The added or already existing Sone
 892          */
 893         public Sone addRemoteSone(Identity identity) {
 894                 if (identity == null) {
 895                         logger.log(Level.WARNING, "Given Identity is null!");
 896                         return null;
 897                 }
 898                 synchronized (remoteSones) {
 899                         final Sone sone = getRemoteSone(identity.getId()).setIdentity(identity);
 900                         boolean newSone = sone.getRequestUri() == null;
 901                         sone.setRequestUri(getSoneUri(identity.getRequestUri()));
 902                         sone.setLatestEdition(Numbers.safeParseLong(identity.getProperty("Sone.LatestEdition"), (long) 0));
 903                         if (newSone) {
 904                                 synchronized (newSones) {
 905                                         newSone = !knownSones.contains(sone.getId());
 906                                         if (newSone) {
 907                                                 newSones.add(sone.getId());
 908                                         }
 909                                 }
 910                                 if (newSone) {
 911                                         coreListenerManager.fireNewSoneFound(sone);
 912                                 }
 913                         }
 914                         remoteSones.put(identity.getId(), sone);
 915                         soneDownloader.addSone(sone);
 916                         setSoneStatus(sone, SoneStatus.unknown);
 917                         new Thread(new Runnable() {
 918
 919                                 @Override
 920                                 @SuppressWarnings("synthetic-access")
 921                                 public void run() {
 922                                         soneDownloader.fetchSone(sone);
 923                                 }
 924
 925                         }, "Sone Downloader").start();
 926                         return sone;
 927                 }
 928         }
 929
 930         /**
 931          * Updates the stores Sone with the given Sone.
 932          *
 933          * @param sone
 934          *            The updated Sone
 935          */
 936         public void updateSone(Sone sone) {
 937                 if (hasSone(sone.getId())) {
 938                         boolean soneRescueMode = isLocalSone(sone) && isSoneRescueMode();
 939                         Sone storedSone = getSone(sone.getId());
 940                         if (!soneRescueMode && !(sone.getTime() > storedSone.getTime())) {
 941                                 logger.log(Level.FINE, "Downloaded Sone %s is not newer than stored Sone %s.", new Object[] { sone, storedSone });
 942                                 return;
 943                         }
 944                         synchronized (posts) {
 945                                 if (!soneRescueMode) {
 946                                         for (Post post : storedSone.getPosts()) {
 947                                                 posts.remove(post.getId());
 948                                                 if (!sone.getPosts().contains(post)) {
 949                                                         coreListenerManager.firePostRemoved(post);
 950                                                 }
 951                                         }
 952                                 }
 953                                 synchronized (newPosts) {
 954                                         for (Post post : sone.getPosts()) {
 955                                                 post.setSone(getSone(post.getSone().getId()));
 956                                                 if (!storedSone.getPosts().contains(post) && !knownPosts.contains(post.getId())) {
 957                                                         newPosts.add(post.getId());
 958                                                         coreListenerManager.fireNewPostFound(post);
 959                                                 }
 960                                                 posts.put(post.getId(), post);
 961                                         }
 962                                 }
 963                         }
 964                         synchronized (replies) {
 965                                 if (!soneRescueMode) {
 966                                         for (Reply reply : storedSone.getReplies()) {
 967                                                 replies.remove(reply.getId());
 968                                                 if (!sone.getReplies().contains(reply)) {
 969                                                         coreListenerManager.fireReplyRemoved(reply);
 970                                                 }
 971                                         }
 972                                 }
 973                                 synchronized (newReplies) {
 974                                         for (Reply reply : sone.getReplies()) {
 975                                                 reply.setSone(getSone(reply.getSone().getId()));
 976                                                 if (!storedSone.getReplies().contains(reply) && !knownReplies.contains(reply.getId())) {
 977                                                         newReplies.add(reply.getId());
 978                                                         coreListenerManager.fireNewReplyFound(reply);
 979                                                 }
 980                                                 replies.put(reply.getId(), reply);
 981                                         }
 982                                 }
 983                         }
 984                         synchronized (storedSone) {
 985                                 if (!soneRescueMode || (sone.getTime() > storedSone.getTime())) {
 986                                         storedSone.setTime(sone.getTime());
 987                                 }
 988                                 storedSone.setClient(sone.getClient());
 989                                 storedSone.setProfile(sone.getProfile());
 990                                 if (soneRescueMode) {
 991                                         for (Post post : sone.getPosts()) {
 992                                                 storedSone.addPost(post);
 993                                         }
 994                                         for (Reply reply : sone.getReplies()) {
 995                                                 storedSone.addReply(reply);
 996                                         }
 997                                         for (String likedPostId : sone.getLikedPostIds()) {
 998                                                 storedSone.addLikedPostId(likedPostId);
 999                                         }
1000                                         for (String likedReplyId : sone.getLikedReplyIds()) {
1001                                                 storedSone.addLikedReplyId(likedReplyId);
1002                                         }
1003                                 } else {
1004                                         storedSone.setPosts(sone.getPosts());
1005                                         storedSone.setReplies(sone.getReplies());
1006                                         storedSone.setLikePostIds(sone.getLikedPostIds());
1007                                         storedSone.setLikeReplyIds(sone.getLikedReplyIds());
1008                                 }
1009                                 storedSone.setLatestEdition(sone.getLatestEdition());
1010                         }
1011                 }
1012         }
1013
1014         /**
1015          * Deletes the given Sone. This will remove the Sone from the
1016          * {@link #getLocalSone(String) local Sones}, stops its {@link SoneInserter}
1017          * and remove the context from its identity.
1018          *
1019          * @param sone
1020          *            The Sone to delete
1021          */
1022         public void deleteSone(Sone sone) {
1023                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
1024                         logger.log(Level.WARNING, "Tried to delete Sone of non-own identity: %s", sone);
1025                         return;
1026                 }
1027                 synchronized (localSones) {
1028                         if (!localSones.containsKey(sone.getId())) {
1029                                 logger.log(Level.WARNING, "Tried to delete non-local Sone: %s", sone);
1030                                 return;
1031                         }
1032                         localSones.remove(sone.getId());
1033                         soneInserters.remove(sone).stop();
1034                 }
1035                 identityManager.removeContext((OwnIdentity) sone.getIdentity(), "Sone");
1036                 identityManager.removeProperty((OwnIdentity) sone.getIdentity(), "Sone.LatestEdition");
1037                 try {
1038                         configuration.getLongValue("Sone/" + sone.getId() + "/Time").setValue(null);
1039                 } catch (ConfigurationException ce1) {
1040                         logger.log(Level.WARNING, "Could not remove Sone from configuration!", ce1);
1041                 }
1042         }
1043
1044         /**
1045          * Loads and updates the given Sone from the configuration. If any error is
1046          * encountered, loading is aborted and the given Sone is not changed.
1047          *
1048          * @param sone
1049          *            The Sone to load and update
1050          */
1051         public void loadSone(Sone sone) {
1052                 if (!isLocalSone(sone)) {
1053                         logger.log(Level.FINE, "Tried to load non-local Sone: %s", sone);
1054                         return;
1055                 }
1056
1057                 /* load Sone. */
1058                 String sonePrefix = "Sone/" + sone.getId();
1059                 Long soneTime = configuration.getLongValue(sonePrefix + "/Time").getValue(null);
1060                 if (soneTime == null) {
1061                         logger.log(Level.INFO, "Could not load Sone because no Sone has been saved.");
1062                         return;
1063                 }
1064                 String lastInsertFingerprint = configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").getValue("");
1065
1066                 /* load profile. */
1067                 Profile profile = new Profile();
1068                 profile.setFirstName(configuration.getStringValue(sonePrefix + "/Profile/FirstName").getValue(null));
1069                 profile.setMiddleName(configuration.getStringValue(sonePrefix + "/Profile/MiddleName").getValue(null));
1070                 profile.setLastName(configuration.getStringValue(sonePrefix + "/Profile/LastName").getValue(null));
1071                 profile.setBirthDay(configuration.getIntValue(sonePrefix + "/Profile/BirthDay").getValue(null));
1072                 profile.setBirthMonth(configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").getValue(null));
1073                 profile.setBirthYear(configuration.getIntValue(sonePrefix + "/Profile/BirthYear").getValue(null));
1074
1075                 /* load posts. */
1076                 Set<Post> posts = new HashSet<Post>();
1077                 while (true) {
1078                         String postPrefix = sonePrefix + "/Posts/" + posts.size();
1079                         String postId = configuration.getStringValue(postPrefix + "/ID").getValue(null);
1080                         if (postId == null) {
1081                                 break;
1082                         }
1083                         String postRecipientId = configuration.getStringValue(postPrefix + "/Recipient").getValue(null);
1084                         long postTime = configuration.getLongValue(postPrefix + "/Time").getValue((long) 0);
1085                         String postText = configuration.getStringValue(postPrefix + "/Text").getValue(null);
1086                         if ((postTime == 0) || (postText == null)) {
1087                                 logger.log(Level.WARNING, "Invalid post found, aborting load!");
1088                                 return;
1089                         }
1090                         Post post = getPost(postId).setSone(sone).setTime(postTime).setText(postText);
1091                         if ((postRecipientId != null) && (postRecipientId.length() == 43)) {
1092                                 post.setRecipient(getSone(postRecipientId));
1093                         }
1094                         posts.add(post);
1095                 }
1096
1097                 /* load replies. */
1098                 Set<Reply> replies = new HashSet<Reply>();
1099                 while (true) {
1100                         String replyPrefix = sonePrefix + "/Replies/" + replies.size();
1101                         String replyId = configuration.getStringValue(replyPrefix + "/ID").getValue(null);
1102                         if (replyId == null) {
1103                                 break;
1104                         }
1105                         String postId = configuration.getStringValue(replyPrefix + "/Post/ID").getValue(null);
1106                         long replyTime = configuration.getLongValue(replyPrefix + "/Time").getValue((long) 0);
1107                         String replyText = configuration.getStringValue(replyPrefix + "/Text").getValue(null);
1108                         if ((postId == null) || (replyTime == 0) || (replyText == null)) {
1109                                 logger.log(Level.WARNING, "Invalid reply found, aborting load!");
1110                                 return;
1111                         }
1112                         replies.add(getReply(replyId).setSone(sone).setPost(getPost(postId)).setTime(replyTime).setText(replyText));
1113                 }
1114
1115                 /* load post likes. */
1116                 Set<String> likedPostIds = new HashSet<String>();
1117                 while (true) {
1118                         String likedPostId = configuration.getStringValue(sonePrefix + "/Likes/Post/" + likedPostIds.size() + "/ID").getValue(null);
1119                         if (likedPostId == null) {
1120                                 break;
1121                         }
1122                         likedPostIds.add(likedPostId);
1123                 }
1124
1125                 /* load reply likes. */
1126                 Set<String> likedReplyIds = new HashSet<String>();
1127                 while (true) {
1128                         String likedReplyId = configuration.getStringValue(sonePrefix + "/Likes/Reply/" + likedReplyIds.size() + "/ID").getValue(null);
1129                         if (likedReplyId == null) {
1130                                 break;
1131                         }
1132                         likedReplyIds.add(likedReplyId);
1133                 }
1134
1135                 /* load friends. */
1136                 Set<String> friends = new HashSet<String>();
1137                 while (true) {
1138                         String friendId = configuration.getStringValue(sonePrefix + "/Friends/" + friends.size() + "/ID").getValue(null);
1139                         if (friendId == null) {
1140                                 break;
1141                         }
1142                         friends.add(friendId);
1143                 }
1144
1145                 /* if we’re still here, Sone was loaded successfully. */
1146                 synchronized (sone) {
1147                         sone.setTime(soneTime);
1148                         sone.setProfile(profile);
1149                         sone.setPosts(posts);
1150                         sone.setReplies(replies);
1151                         sone.setLikePostIds(likedPostIds);
1152                         sone.setLikeReplyIds(likedReplyIds);
1153                         sone.setFriends(friends);
1154                         soneInserters.get(sone).setLastInsertFingerprint(lastInsertFingerprint);
1155                 }
1156                 synchronized (newSones) {
1157                         for (String friend : friends) {
1158                                 knownSones.add(friend);
1159                         }
1160                 }
1161                 synchronized (newPosts) {
1162                         for (Post post : posts) {
1163                                 knownPosts.add(post.getId());
1164                         }
1165                 }
1166                 synchronized (newReplies) {
1167                         for (Reply reply : replies) {
1168                                 knownReplies.add(reply.getId());
1169                         }
1170                 }
1171         }
1172
1173         /**
1174          * Saves the given Sone. This will persist all local settings for the given
1175          * Sone, such as the friends list and similar, private options.
1176          *
1177          * @param sone
1178          *            The Sone to save
1179          */
1180         public synchronized void saveSone(Sone sone) {
1181                 if (!isLocalSone(sone)) {
1182                         logger.log(Level.FINE, "Tried to save non-local Sone: %s", sone);
1183                         return;
1184                 }
1185                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
1186                         logger.log(Level.WARNING, "Local Sone without OwnIdentity found, refusing to save: %s", sone);
1187                         return;
1188                 }
1189
1190                 logger.log(Level.INFO, "Saving Sone: %s", sone);
1191                 identityManager.setProperty((OwnIdentity) sone.getIdentity(), "Sone.LatestEdition", String.valueOf(sone.getLatestEdition()));
1192                 try {
1193                         /* save Sone into configuration. */
1194                         String sonePrefix = "Sone/" + sone.getId();
1195                         configuration.getLongValue(sonePrefix + "/Time").setValue(sone.getTime());
1196                         configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").setValue(soneInserters.get(sone).getLastInsertFingerprint());
1197
1198                         /* save profile. */
1199                         Profile profile = sone.getProfile();
1200                         configuration.getStringValue(sonePrefix + "/Profile/FirstName").setValue(profile.getFirstName());
1201                         configuration.getStringValue(sonePrefix + "/Profile/MiddleName").setValue(profile.getMiddleName());
1202                         configuration.getStringValue(sonePrefix + "/Profile/LastName").setValue(profile.getLastName());
1203                         configuration.getIntValue(sonePrefix + "/Profile/BirthDay").setValue(profile.getBirthDay());
1204                         configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").setValue(profile.getBirthMonth());
1205                         configuration.getIntValue(sonePrefix + "/Profile/BirthYear").setValue(profile.getBirthYear());
1206
1207                         /* save posts. */
1208                         int postCounter = 0;
1209                         for (Post post : sone.getPosts()) {
1210                                 String postPrefix = sonePrefix + "/Posts/" + postCounter++;
1211                                 configuration.getStringValue(postPrefix + "/ID").setValue(post.getId());
1212                                 configuration.getStringValue(postPrefix + "/Recipient").setValue((post.getRecipient() != null) ? post.getRecipient().getId() : null);
1213                                 configuration.getLongValue(postPrefix + "/Time").setValue(post.getTime());
1214                                 configuration.getStringValue(postPrefix + "/Text").setValue(post.getText());
1215                         }
1216                         configuration.getStringValue(sonePrefix + "/Posts/" + postCounter + "/ID").setValue(null);
1217
1218                         /* save replies. */
1219                         int replyCounter = 0;
1220                         for (Reply reply : sone.getReplies()) {
1221                                 String replyPrefix = sonePrefix + "/Replies/" + replyCounter++;
1222                                 configuration.getStringValue(replyPrefix + "/ID").setValue(reply.getId());
1223                                 configuration.getStringValue(replyPrefix + "/Post/ID").setValue(reply.getPost().getId());
1224                                 configuration.getLongValue(replyPrefix + "/Time").setValue(reply.getTime());
1225                                 configuration.getStringValue(replyPrefix + "/Text").setValue(reply.getText());
1226                         }
1227                         configuration.getStringValue(sonePrefix + "/Replies/" + replyCounter + "/ID").setValue(null);
1228
1229                         /* save post likes. */
1230                         int postLikeCounter = 0;
1231                         for (String postId : sone.getLikedPostIds()) {
1232                                 configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter++ + "/ID").setValue(postId);
1233                         }
1234                         configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter + "/ID").setValue(null);
1235
1236                         /* save reply likes. */
1237                         int replyLikeCounter = 0;
1238                         for (String replyId : sone.getLikedReplyIds()) {
1239                                 configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter++ + "/ID").setValue(replyId);
1240                         }
1241                         configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter + "/ID").setValue(null);
1242
1243                         /* save friends. */
1244                         int friendCounter = 0;
1245                         for (String friendId : sone.getFriends()) {
1246                                 configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter++ + "/ID").setValue(friendId);
1247                         }
1248                         configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter + "/ID").setValue(null);
1249
1250                         configuration.save();
1251                         logger.log(Level.INFO, "Sone %s saved.", sone);
1252                 } catch (ConfigurationException ce1) {
1253                         logger.log(Level.WARNING, "Could not save Sone: " + sone, ce1);
1254                 }
1255         }
1256
1257         /**
1258          * Creates a new post.
1259          *
1260          * @param sone
1261          *            The Sone that creates the post
1262          * @param text
1263          *            The text of the post
1264          * @return The created post
1265          */
1266         public Post createPost(Sone sone, String text) {
1267                 return createPost(sone, System.currentTimeMillis(), text);
1268         }
1269
1270         /**
1271          * Creates a new post.
1272          *
1273          * @param sone
1274          *            The Sone that creates the post
1275          * @param time
1276          *            The time of the post
1277          * @param text
1278          *            The text of the post
1279          * @return The created post
1280          */
1281         public Post createPost(Sone sone, long time, String text) {
1282                 return createPost(sone, null, time, text);
1283         }
1284
1285         /**
1286          * Creates a new post.
1287          *
1288          * @param sone
1289          *            The Sone that creates the post
1290          * @param recipient
1291          *            The recipient Sone, or {@code null} if this post does not have
1292          *            a recipient
1293          * @param text
1294          *            The text of the post
1295          * @return The created post
1296          */
1297         public Post createPost(Sone sone, Sone recipient, String text) {
1298                 return createPost(sone, recipient, System.currentTimeMillis(), text);
1299         }
1300
1301         /**
1302          * Creates a new post.
1303          *
1304          * @param sone
1305          *            The Sone that creates the post
1306          * @param recipient
1307          *            The recipient Sone, or {@code null} if this post does not have
1308          *            a recipient
1309          * @param time
1310          *            The time of the post
1311          * @param text
1312          *            The text of the post
1313          * @return The created post
1314          */
1315         public Post createPost(Sone sone, Sone recipient, long time, String text) {
1316                 if (!isLocalSone(sone)) {
1317                         logger.log(Level.FINE, "Tried to create post for non-local Sone: %s", sone);
1318                         return null;
1319                 }
1320                 Post post = new Post(sone, time, text);
1321                 if (recipient != null) {
1322                         post.setRecipient(recipient);
1323                 }
1324                 synchronized (posts) {
1325                         posts.put(post.getId(), post);
1326                 }
1327                 synchronized (newPosts) {
1328                         knownPosts.add(post.getId());
1329                 }
1330                 sone.addPost(post);
1331                 saveSone(sone);
1332                 return post;
1333         }
1334
1335         /**
1336          * Deletes the given post.
1337          *
1338          * @param post
1339          *            The post to delete
1340          */
1341         public void deletePost(Post post) {
1342                 if (!isLocalSone(post.getSone())) {
1343                         logger.log(Level.WARNING, "Tried to delete post of non-local Sone: %s", post.getSone());
1344                         return;
1345                 }
1346                 post.getSone().removePost(post);
1347                 synchronized (posts) {
1348                         posts.remove(post.getId());
1349                 }
1350                 saveSone(post.getSone());
1351         }
1352
1353         /**
1354          * Marks the given post as known, if it is currently a new post (according
1355          * to {@link #isNewPost(String)}).
1356          *
1357          * @param post
1358          *            The post to mark as known
1359          */
1360         public void markPostKnown(Post post) {
1361                 synchronized (newPosts) {
1362                         if (newPosts.remove(post.getId())) {
1363                                 knownPosts.add(post.getId());
1364                                 coreListenerManager.fireMarkPostKnown(post);
1365                                 saveConfiguration();
1366                         }
1367                 }
1368         }
1369
1370         /**
1371          * Creates a new reply.
1372          *
1373          * @param sone
1374          *            The Sone that creates the reply
1375          * @param post
1376          *            The post that this reply refers to
1377          * @param text
1378          *            The text of the reply
1379          * @return The created reply
1380          */
1381         public Reply createReply(Sone sone, Post post, String text) {
1382                 return createReply(sone, post, System.currentTimeMillis(), text);
1383         }
1384
1385         /**
1386          * Creates a new reply.
1387          *
1388          * @param sone
1389          *            The Sone that creates the reply
1390          * @param post
1391          *            The post that this reply refers to
1392          * @param time
1393          *            The time of the reply
1394          * @param text
1395          *            The text of the reply
1396          * @return The created reply
1397          */
1398         public Reply createReply(Sone sone, Post post, long time, String text) {
1399                 if (!isLocalSone(sone)) {
1400                         logger.log(Level.FINE, "Tried to create reply for non-local Sone: %s", sone);
1401                         return null;
1402                 }
1403                 Reply reply = new Reply(sone, post, System.currentTimeMillis(), text);
1404                 synchronized (replies) {
1405                         replies.put(reply.getId(), reply);
1406                 }
1407                 synchronized (newReplies) {
1408                         knownReplies.add(reply.getId());
1409                 }
1410                 sone.addReply(reply);
1411                 saveSone(sone);
1412                 return reply;
1413         }
1414
1415         /**
1416          * Deletes the given reply.
1417          *
1418          * @param reply
1419          *            The reply to delete
1420          */
1421         public void deleteReply(Reply reply) {
1422                 Sone sone = reply.getSone();
1423                 if (!isLocalSone(sone)) {
1424                         logger.log(Level.FINE, "Tried to delete non-local reply: %s", reply);
1425                         return;
1426                 }
1427                 synchronized (replies) {
1428                         replies.remove(reply.getId());
1429                 }
1430                 sone.removeReply(reply);
1431                 saveSone(sone);
1432         }
1433
1434         /**
1435          * Marks the given reply as known, if it is currently a new reply (according
1436          * to {@link #isNewReply(String)}).
1437          *
1438          * @param reply
1439          *            The reply to mark as known
1440          */
1441         public void markReplyKnown(Reply reply) {
1442                 synchronized (newReplies) {
1443                         if (newReplies.remove(reply.getId())) {
1444                                 knownReplies.add(reply.getId());
1445                                 coreListenerManager.fireMarkReplyKnown(reply);
1446                                 saveConfiguration();
1447                         }
1448                 }
1449         }
1450
1451         /**
1452          * Starts the core.
1453          */
1454         public void start() {
1455                 loadConfiguration();
1456                 updateChecker.addUpdateListener(this);
1457                 updateChecker.start();
1458         }
1459
1460         /**
1461          * Stops the core.
1462          */
1463         public void stop() {
1464                 synchronized (localSones) {
1465                         for (SoneInserter soneInserter : soneInserters.values()) {
1466                                 soneInserter.stop();
1467                         }
1468                 }
1469                 updateChecker.stop();
1470                 updateChecker.removeUpdateListener(this);
1471                 soneDownloader.stop();
1472                 saveConfiguration();
1473                 stopped = true;
1474         }
1475
1476         /**
1477          * Saves the current options.
1478          */
1479         public void saveConfiguration() {
1480                 synchronized (configuration) {
1481                         if (storingConfiguration) {
1482                                 logger.log(Level.FINE, "Already storing configuration…");
1483                                 return;
1484                         }
1485                         storingConfiguration = true;
1486                 }
1487
1488                 /* store the options first. */
1489                 try {
1490                         configuration.getIntValue("Option/ConfigurationVersion").setValue(0);
1491                         configuration.getIntValue("Option/InsertionDelay").setValue(options.getIntegerOption("InsertionDelay").getReal());
1492                         configuration.getBooleanValue("Option/SoneRescueMode").setValue(options.getBooleanOption("SoneRescueMode").getReal());
1493                         configuration.getBooleanValue("Option/ClearOnNextRestart").setValue(options.getBooleanOption("ClearOnNextRestart").getReal());
1494                         configuration.getBooleanValue("Option/ReallyClearOnNextRestart").setValue(options.getBooleanOption("ReallyClearOnNextRestart").getReal());
1495
1496                         /* save known Sones. */
1497                         int soneCounter = 0;
1498                         synchronized (newSones) {
1499                                 for (String knownSoneId : knownSones) {
1500                                         configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").setValue(knownSoneId);
1501                                 }
1502                                 configuration.getStringValue("KnownSone/" + soneCounter + "/ID").setValue(null);
1503                         }
1504
1505                         /* save known posts. */
1506                         int postCounter = 0;
1507                         synchronized (newPosts) {
1508                                 for (String knownPostId : knownPosts) {
1509                                         configuration.getStringValue("KnownPosts/" + postCounter++ + "/ID").setValue(knownPostId);
1510                                 }
1511                                 configuration.getStringValue("KnownPosts/" + postCounter + "/ID").setValue(null);
1512                         }
1513
1514                         /* save known replies. */
1515                         int replyCounter = 0;
1516                         synchronized (newReplies) {
1517                                 for (String knownReplyId : knownReplies) {
1518                                         configuration.getStringValue("KnownReplies/" + replyCounter++ + "/ID").setValue(knownReplyId);
1519                                 }
1520                                 configuration.getStringValue("KnownReplies/" + replyCounter + "/ID").setValue(null);
1521                         }
1522
1523                         /* now save it. */
1524                         configuration.save();
1525
1526                 } catch (ConfigurationException ce1) {
1527                         logger.log(Level.SEVERE, "Could not store configuration!", ce1);
1528                 } finally {
1529                         synchronized (configuration) {
1530                                 storingConfiguration = false;
1531                         }
1532                 }
1533         }
1534
1535         //
1536         // PRIVATE METHODS
1537         //
1538
1539         /**
1540          * Loads the configuration.
1541          */
1542         @SuppressWarnings("unchecked")
1543         private void loadConfiguration() {
1544                 /* create options. */
1545                 options.addIntegerOption("InsertionDelay", new DefaultOption<Integer>(60, new OptionWatcher<Integer>() {
1546
1547                         @Override
1548                         public void optionChanged(Option<Integer> option, Integer oldValue, Integer newValue) {
1549                                 SoneInserter.setInsertionDelay(newValue);
1550                         }
1551
1552                 }));
1553                 options.addBooleanOption("SoneRescueMode", new DefaultOption<Boolean>(false));
1554                 options.addBooleanOption("ClearOnNextRestart", new DefaultOption<Boolean>(false));
1555                 options.addBooleanOption("ReallyClearOnNextRestart", new DefaultOption<Boolean>(false));
1556
1557                 /* read options from configuration. */
1558                 options.getBooleanOption("ClearOnNextRestart").set(configuration.getBooleanValue("Option/ClearOnNextRestart").getValue(null));
1559                 options.getBooleanOption("ReallyClearOnNextRestart").set(configuration.getBooleanValue("Option/ReallyClearOnNextRestart").getValue(null));
1560                 boolean clearConfiguration = options.getBooleanOption("ClearOnNextRestart").get() && options.getBooleanOption("ReallyClearOnNextRestart").get();
1561                 options.getBooleanOption("ClearOnNextRestart").set(null);
1562                 options.getBooleanOption("ReallyClearOnNextRestart").set(null);
1563                 if (clearConfiguration) {
1564                         /* stop loading the configuration. */
1565                         return;
1566                 }
1567
1568                 options.getIntegerOption("InsertionDelay").set(configuration.getIntValue("Option/InsertionDelay").getValue(null));
1569                 options.getBooleanOption("SoneRescueMode").set(configuration.getBooleanValue("Option/SoneRescueMode").getValue(null));
1570
1571                 /* load known Sones. */
1572                 int soneCounter = 0;
1573                 while (true) {
1574                         String knownSoneId = configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").getValue(null);
1575                         if (knownSoneId == null) {
1576                                 break;
1577                         }
1578                         synchronized (newSones) {
1579                                 knownSones.add(knownSoneId);
1580                         }
1581                 }
1582
1583                 /* load known posts. */
1584                 int postCounter = 0;
1585                 while (true) {
1586                         String knownPostId = configuration.getStringValue("KnownPosts/" + postCounter++ + "/ID").getValue(null);
1587                         if (knownPostId == null) {
1588                                 break;
1589                         }
1590                         synchronized (newPosts) {
1591                                 knownPosts.add(knownPostId);
1592                         }
1593                 }
1594
1595                 /* load known replies. */
1596                 int replyCounter = 0;
1597                 while (true) {
1598                         String knownReplyId = configuration.getStringValue("KnownReplies/" + replyCounter++ + "/ID").getValue(null);
1599                         if (knownReplyId == null) {
1600                                 break;
1601                         }
1602                         synchronized (newReplies) {
1603                                 knownReplies.add(knownReplyId);
1604                         }
1605                 }
1606
1607         }
1608
1609         /**
1610          * Generate a Sone URI from the given URI and latest edition.
1611          *
1612          * @param uriString
1613          *            The URI to derive the Sone URI from
1614          * @return The derived URI
1615          */
1616         private FreenetURI getSoneUri(String uriString) {
1617                 try {
1618                         FreenetURI uri = new FreenetURI(uriString).setDocName("Sone").setMetaString(new String[0]);
1619                         return uri;
1620                 } catch (MalformedURLException mue1) {
1621                         logger.log(Level.WARNING, "Could not create Sone URI from URI: " + uriString, mue1);
1622                         return null;
1623                 }
1624         }
1625
1626         //
1627         // INTERFACE IdentityListener
1628         //
1629
1630         /**
1631          * {@inheritDoc}
1632          */
1633         @Override
1634         public void ownIdentityAdded(OwnIdentity ownIdentity) {
1635                 logger.log(Level.FINEST, "Adding OwnIdentity: " + ownIdentity);
1636                 if (ownIdentity.hasContext("Sone")) {
1637                         addLocalSone(ownIdentity);
1638                 }
1639         }
1640
1641         /**
1642          * {@inheritDoc}
1643          */
1644         @Override
1645         public void ownIdentityRemoved(OwnIdentity ownIdentity) {
1646                 logger.log(Level.FINEST, "Removing OwnIdentity: " + ownIdentity);
1647         }
1648
1649         /**
1650          * {@inheritDoc}
1651          */
1652         @Override
1653         public void identityAdded(Identity identity) {
1654                 logger.log(Level.FINEST, "Adding Identity: " + identity);
1655                 addRemoteSone(identity);
1656         }
1657
1658         /**
1659          * {@inheritDoc}
1660          */
1661         @Override
1662         public void identityUpdated(final Identity identity) {
1663                 new Thread(new Runnable() {
1664
1665                         @Override
1666                         @SuppressWarnings("synthetic-access")
1667                         public void run() {
1668                                 Sone sone = getRemoteSone(identity.getId());
1669                                 soneDownloader.fetchSone(sone);
1670                         }
1671                 }).start();
1672         }
1673
1674         /**
1675          * {@inheritDoc}
1676          */
1677         @Override
1678         public void identityRemoved(Identity identity) {
1679                 /* TODO */
1680         }
1681
1682         //
1683         // INTERFACE UpdateListener
1684         //
1685
1686         /**
1687          * {@inheritDoc}
1688          */
1689         @Override
1690         public void updateFound(Version version, long releaseTime) {
1691                 coreListenerManager.fireUpdateFound(version, releaseTime);
1692         }
1693
1694 }