Store and propagate the latest edition, too.
[Sone.git] / src / main / java / net / pterodactylus / sone / core / Core.java
index 9b4828c..99a119b 100644 (file)
@@ -34,6 +34,7 @@ import net.pterodactylus.sone.core.Options.OptionWatcher;
 import net.pterodactylus.sone.data.Client;
 import net.pterodactylus.sone.data.Post;
 import net.pterodactylus.sone.data.Profile;
+import net.pterodactylus.sone.data.Profile.Field;
 import net.pterodactylus.sone.data.Reply;
 import net.pterodactylus.sone.data.Sone;
 import net.pterodactylus.sone.freenet.wot.Identity;
@@ -47,6 +48,8 @@ import net.pterodactylus.util.config.Configuration;
 import net.pterodactylus.util.config.ConfigurationException;
 import net.pterodactylus.util.logging.Logging;
 import net.pterodactylus.util.number.Numbers;
+import net.pterodactylus.util.validation.Validation;
+import net.pterodactylus.util.version.Version;
 import freenet.keys.FreenetURI;
 
 /**
@@ -54,7 +57,7 @@ import freenet.keys.FreenetURI;
  *
  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  */
-public class Core implements IdentityListener {
+public class Core implements IdentityListener, UpdateListener {
 
        /**
         * Enumeration for the possible states of a {@link Sone}.
@@ -88,6 +91,9 @@ public class Core implements IdentityListener {
        /** The configuration. */
        private Configuration configuration;
 
+       /** Whether we’re currently saving the configuration. */
+       private boolean storingConfiguration = false;
+
        /** The identity manager. */
        private final IdentityManager identityManager;
 
@@ -97,6 +103,9 @@ public class Core implements IdentityListener {
        /** The Sone downloader. */
        private final SoneDownloader soneDownloader;
 
+       /** The update checker. */
+       private final UpdateChecker updateChecker;
+
        /** Whether the core has been stopped. */
        private volatile boolean stopped;
 
@@ -164,6 +173,7 @@ public class Core implements IdentityListener {
                this.freenetInterface = freenetInterface;
                this.identityManager = identityManager;
                this.soneDownloader = new SoneDownloader(this, freenetInterface);
+               this.updateChecker = new UpdateChecker(freenetInterface);
        }
 
        //
@@ -235,6 +245,15 @@ public class Core implements IdentityListener {
        }
 
        /**
+        * Returns the update checker.
+        *
+        * @return The update checker
+        */
+       public UpdateChecker getUpdateChecker() {
+               return updateChecker;
+       }
+
+       /**
         * Returns the status of the given Sone.
         *
         * @param sone
@@ -396,6 +415,7 @@ public class Core implements IdentityListener {
                        if ((sone == null) && create) {
                                sone = new Sone(id);
                                localSones.put(id, sone);
+                               setSoneStatus(sone, SoneStatus.unknown);
                        }
                        return sone;
                }
@@ -439,6 +459,7 @@ public class Core implements IdentityListener {
                        if ((sone == null) && create) {
                                sone = new Sone(id);
                                remoteSones.put(id, sone);
+                               setSoneStatus(sone, SoneStatus.unknown);
                        }
                        return sone;
                }
@@ -473,22 +494,15 @@ public class Core implements IdentityListener {
        }
 
        /**
-        * Returns whether the given Sone is a new Sone. After this check, the Sone
-        * is marked as known, i.e. a second call with the same parameters will
-        * always yield {@code false}.
+        * Returns whether the Sone with the given ID is a new Sone.
         *
-        * @param sone
-        *            The sone to check for
+        * @param soneId
+        *            The ID of the sone to check for
         * @return {@code true} if the given Sone is new, false otherwise
         */
-       public boolean isNewSone(Sone sone) {
+       public boolean isNewSone(String soneId) {
                synchronized (newSones) {
-                       boolean isNew = !knownSones.contains(sone.getId()) && newSones.remove(sone.getId());
-                       knownSones.add(sone.getId());
-                       if (isNew) {
-                               coreListenerManager.fireMarkSoneKnown(sone);
-                       }
-                       return isNew;
+                       return !knownSones.contains(soneId) && newSones.contains(soneId);
                }
        }
 
@@ -550,8 +564,7 @@ public class Core implements IdentityListener {
        }
 
        /**
-        * Returns whether the given post ID is new. After this method returns it is
-        * marked a known post ID.
+        * Returns whether the given post ID is new.
         *
         * @param postId
         *            The post ID
@@ -559,32 +572,8 @@ public class Core implements IdentityListener {
         *         otherwise
         */
        public boolean isNewPost(String postId) {
-               return isNewPost(postId, true);
-       }
-
-       /**
-        * Returns whether the given post ID is new. If {@code markAsKnown} is
-        * {@code true} then after this method returns the post ID is marked a known
-        * post ID.
-        *
-        * @param postId
-        *            The post ID
-        * @param markAsKnown
-        *            {@code true} to mark the post ID as known, {@code false} to
-        *            not to mark it as known
-        * @return {@code true} if the post is considered to be new, {@code false}
-        *         otherwise
-        */
-       public boolean isNewPost(String postId, boolean markAsKnown) {
                synchronized (newPosts) {
-                       boolean isNew = !knownPosts.contains(postId) && newPosts.contains(postId);
-                       if (markAsKnown) {
-                               Post post = getPost(postId, false);
-                               if (post != null) {
-                                       markPostKnown(post);
-                               }
-                       }
-                       return isNew;
+                       return !knownPosts.contains(postId) && newPosts.contains(postId);
                }
        }
 
@@ -653,30 +642,8 @@ public class Core implements IdentityListener {
         *         otherwise
         */
        public boolean isNewReply(String replyId) {
-               return isNewReply(replyId, true);
-       }
-
-       /**
-        * Returns whether the reply with the given ID is new.
-        *
-        * @param replyId
-        *            The ID of the reply to check
-        * @param markAsKnown
-        *            {@code true} to mark the reply as known, {@code false} to not
-        *            to mark it as known
-        * @return {@code true} if the reply is considered to be new, {@code false}
-        *         otherwise
-        */
-       public boolean isNewReply(String replyId, boolean markAsKnown) {
                synchronized (newReplies) {
-                       boolean isNew = !knownReplies.contains(replyId) && newReplies.contains(replyId);
-                       if (markAsKnown) {
-                               Reply reply = getReply(replyId, false);
-                               if (reply != null) {
-                                       markReplyKnown(reply);
-                               }
-                       }
-                       return isNew;
+                       return !knownReplies.contains(replyId) && newReplies.contains(replyId);
                }
        }
 
@@ -895,8 +862,10 @@ public class Core implements IdentityListener {
        }
 
        /**
-        * Retrieves the trust relationship from the origin to the target.
+        * Retrieves the trust relationship from the origin to the target. If the
+        * trust relationship can not be retrieved, {@code null} is returned.
         *
+        * @see Identity#getTrust(OwnIdentity)
         * @param origin
         *            The origin of the trust tree
         * @param target
@@ -908,15 +877,82 @@ public class Core implements IdentityListener {
                        logger.log(Level.WARNING, "Tried to get trust from remote Sone: %s", origin);
                        return null;
                }
+               return target.getIdentity().getTrust((OwnIdentity) origin.getIdentity());
+       }
+
+       /**
+        * Sets the trust value of the given origin Sone for the target Sone.
+        *
+        * @param origin
+        *            The origin Sone
+        * @param target
+        *            The target Sone
+        * @param trustValue
+        *            The trust value (from {@code -100} to {@code 100})
+        */
+       public void setTrust(Sone origin, Sone target, int trustValue) {
+               Validation.begin().isNotNull("Trust Origin", origin).check().isInstanceOf("Trust Origin", origin.getIdentity(), OwnIdentity.class).isNotNull("Trust Target", target).isLessOrEqual("Trust Value", trustValue, 100).isGreaterOrEqual("Trust Value", trustValue, -100).check();
+               try {
+                       ((OwnIdentity) origin.getIdentity()).setTrust(target.getIdentity(), trustValue, options.getStringOption("TrustComment").get());
+               } catch (WebOfTrustException wote1) {
+                       logger.log(Level.WARNING, "Could not set trust for Sone: " + target, wote1);
+               }
+       }
+
+       /**
+        * Removes any trust assignment for the given target Sone.
+        *
+        * @param origin
+        *            The trust origin
+        * @param target
+        *            The trust target
+        */
+       public void removeTrust(Sone origin, Sone target) {
+               Validation.begin().isNotNull("Trust Origin", origin).isNotNull("Trust Target", target).check().isInstanceOf("Trust Origin Identity", origin.getIdentity(), OwnIdentity.class).check();
                try {
-                       return target.getIdentity().getTrust((OwnIdentity) origin.getIdentity());
+                       ((OwnIdentity) origin.getIdentity()).removeTrust(target.getIdentity());
                } catch (WebOfTrustException wote1) {
-                       logger.log(Level.WARNING, "Could not get trust for Sone: " + target, wote1);
-                       return null;
+                       logger.log(Level.WARNING, "Could not remove trust for Sone: " + target, wote1);
                }
        }
 
        /**
+        * Assigns the configured positive trust value for the given target.
+        *
+        * @param origin
+        *            The trust origin
+        * @param target
+        *            The trust target
+        */
+       public void trustSone(Sone origin, Sone target) {
+               setTrust(origin, target, options.getIntegerOption("PositiveTrust").get());
+       }
+
+       /**
+        * Assigns the configured negative trust value for the given target.
+        *
+        * @param origin
+        *            The trust origin
+        * @param target
+        *            The trust target
+        */
+       public void distrustSone(Sone origin, Sone target) {
+               setTrust(origin, target, options.getIntegerOption("NegativeTrust").get());
+       }
+
+       /**
+        * Removes the trust assignment for the given target.
+        *
+        * @param origin
+        *            The trust origin
+        * @param target
+        *            The trust target
+        */
+       public void untrustSone(Sone origin, Sone target) {
+               removeTrust(origin, target);
+       }
+
+       /**
         * Updates the stores Sone with the given Sone.
         *
         * @param sone
@@ -939,10 +975,11 @@ public class Core implements IdentityListener {
                                                }
                                        }
                                }
+                               List<Post> storedPosts = storedSone.getPosts();
                                synchronized (newPosts) {
                                        for (Post post : sone.getPosts()) {
-                                               post.setSone(getSone(post.getSone().getId()));
-                                               if (!storedSone.getPosts().contains(post) && !knownPosts.contains(post.getId())) {
+                                               post.setSone(storedSone);
+                                               if (!storedPosts.contains(post) && !knownPosts.contains(post.getId())) {
                                                        newPosts.add(post.getId());
                                                        coreListenerManager.fireNewPostFound(post);
                                                }
@@ -959,10 +996,11 @@ public class Core implements IdentityListener {
                                                }
                                        }
                                }
+                               Set<Reply> storedReplies = storedSone.getReplies();
                                synchronized (newReplies) {
                                        for (Reply reply : sone.getReplies()) {
-                                               reply.setSone(getSone(reply.getSone().getId()));
-                                               if (!storedSone.getReplies().contains(reply) && !knownReplies.contains(reply.getId())) {
+                                               reply.setSone(storedSone);
+                                               if (!storedReplies.contains(reply) && !knownReplies.contains(reply.getId())) {
                                                        newReplies.add(reply.getId());
                                                        coreListenerManager.fireNewReplyFound(reply);
                                                }
@@ -1035,6 +1073,23 @@ public class Core implements IdentityListener {
        }
 
        /**
+        * Marks the given Sone as known. If the Sone was {@link #isNewPost(String)
+        * new} before, a {@link CoreListener#markSoneKnown(Sone)} event is fired.
+        *
+        * @param sone
+        *            The Sone to mark as known
+        */
+       public void markSoneKnown(Sone sone) {
+               synchronized (newSones) {
+                       if (newSones.remove(sone.getId())) {
+                               knownSones.add(sone.getId());
+                               coreListenerManager.fireMarkSoneKnown(sone);
+                               saveConfiguration();
+                       }
+               }
+       }
+
+       /**
         * Loads and updates the given Sone from the configuration. If any error is
         * encountered, loading is aborted and the given Sone is not changed.
         *
@@ -1065,6 +1120,17 @@ public class Core implements IdentityListener {
                profile.setBirthMonth(configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").getValue(null));
                profile.setBirthYear(configuration.getIntValue(sonePrefix + "/Profile/BirthYear").getValue(null));
 
+               /* load profile fields. */
+               while (true) {
+                       String fieldPrefix = sonePrefix + "/Profile/Fields/" + profile.getFields().size();
+                       String fieldName = configuration.getStringValue(fieldPrefix + "/Name").getValue(null);
+                       if (fieldName == null) {
+                               break;
+                       }
+                       String fieldValue = configuration.getStringValue(fieldPrefix + "/Value").getValue("");
+                       profile.addField(fieldName).setValue(fieldValue);
+               }
+
                /* load posts. */
                Set<Post> posts = new HashSet<Post>();
                while (true) {
@@ -1198,6 +1264,15 @@ public class Core implements IdentityListener {
                        configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").setValue(profile.getBirthMonth());
                        configuration.getIntValue(sonePrefix + "/Profile/BirthYear").setValue(profile.getBirthYear());
 
+                       /* save profile fields. */
+                       int fieldCounter = 0;
+                       for (Field profileField : profile.getFields()) {
+                               String fieldPrefix = sonePrefix + "/Profile/Fields/" + fieldCounter++;
+                               configuration.getStringValue(fieldPrefix + "/Name").setValue(profileField.getName());
+                               configuration.getStringValue(fieldPrefix + "/Value").setValue(profileField.getValue());
+                       }
+                       configuration.getStringValue(sonePrefix + "/Profile/Fields/" + fieldCounter + "/Name").setValue(null);
+
                        /* save posts. */
                        int postCounter = 0;
                        for (Post post : sone.getPosts()) {
@@ -1449,6 +1524,8 @@ public class Core implements IdentityListener {
         */
        public void start() {
                loadConfiguration();
+               updateChecker.addUpdateListener(this);
+               updateChecker.start();
        }
 
        /**
@@ -1460,6 +1537,8 @@ public class Core implements IdentityListener {
                                soneInserter.stop();
                        }
                }
+               updateChecker.stop();
+               updateChecker.removeUpdateListener(this);
                soneDownloader.stop();
                saveConfiguration();
                stopped = true;
@@ -1468,10 +1547,22 @@ public class Core implements IdentityListener {
        /**
         * Saves the current options.
         */
-       public synchronized void saveConfiguration() {
+       public void saveConfiguration() {
+               synchronized (configuration) {
+                       if (storingConfiguration) {
+                               logger.log(Level.FINE, "Already storing configuration…");
+                               return;
+                       }
+                       storingConfiguration = true;
+               }
+
                /* store the options first. */
                try {
+                       configuration.getIntValue("Option/ConfigurationVersion").setValue(0);
                        configuration.getIntValue("Option/InsertionDelay").setValue(options.getIntegerOption("InsertionDelay").getReal());
+                       configuration.getIntValue("Option/PositiveTrust").setValue(options.getIntegerOption("PositiveTrust").getReal());
+                       configuration.getIntValue("Option/NegativeTrust").setValue(options.getIntegerOption("NegativeTrust").getReal());
+                       configuration.getStringValue("Option/TrustComment").setValue(options.getStringOption("TrustComment").getReal());
                        configuration.getBooleanValue("Option/SoneRescueMode").setValue(options.getBooleanOption("SoneRescueMode").getReal());
                        configuration.getBooleanValue("Option/ClearOnNextRestart").setValue(options.getBooleanOption("ClearOnNextRestart").getReal());
                        configuration.getBooleanValue("Option/ReallyClearOnNextRestart").setValue(options.getBooleanOption("ReallyClearOnNextRestart").getReal());
@@ -1508,6 +1599,10 @@ public class Core implements IdentityListener {
 
                } catch (ConfigurationException ce1) {
                        logger.log(Level.SEVERE, "Could not store configuration!", ce1);
+               } finally {
+                       synchronized (configuration) {
+                               storingConfiguration = false;
+                       }
                }
        }
 
@@ -1529,6 +1624,9 @@ public class Core implements IdentityListener {
                        }
 
                }));
+               options.addIntegerOption("PositiveTrust", new DefaultOption<Integer>(75));
+               options.addIntegerOption("NegativeTrust", new DefaultOption<Integer>(-100));
+               options.addStringOption("TrustComment", new DefaultOption<String>("Set from Sone Web Interface"));
                options.addBooleanOption("SoneRescueMode", new DefaultOption<Boolean>(false));
                options.addBooleanOption("ClearOnNextRestart", new DefaultOption<Boolean>(false));
                options.addBooleanOption("ReallyClearOnNextRestart", new DefaultOption<Boolean>(false));
@@ -1545,6 +1643,9 @@ public class Core implements IdentityListener {
                }
 
                options.getIntegerOption("InsertionDelay").set(configuration.getIntValue("Option/InsertionDelay").getValue(null));
+               options.getIntegerOption("PositiveTrust").set(configuration.getIntValue("Option/PositiveTrust").getValue(null));
+               options.getIntegerOption("NegativeTrust").set(configuration.getIntValue("Option/NegativeTrust").getValue(null));
+               options.getStringOption("TrustComment").set(configuration.getStringValue("Option/TrustComment").getValue(null));
                options.getBooleanOption("SoneRescueMode").set(configuration.getBooleanValue("Option/SoneRescueMode").getValue(null));
 
                /* load known Sones. */
@@ -1648,6 +1749,7 @@ public class Core implements IdentityListener {
                        @SuppressWarnings("synthetic-access")
                        public void run() {
                                Sone sone = getRemoteSone(identity.getId());
+                               sone.setIdentity(identity);
                                soneDownloader.fetchSone(sone);
                        }
                }).start();
@@ -1661,4 +1763,16 @@ public class Core implements IdentityListener {
                trustedIdentities.get(ownIdentity).remove(identity);
        }
 
+       //
+       // INTERFACE UpdateListener
+       //
+
+       /**
+        * {@inheritDoc}
+        */
+       @Override
+       public void updateFound(Version version, long releaseTime, long latestEdition) {
+               coreListenerManager.fireUpdateFound(version, releaseTime, latestEdition);
+       }
+
 }