import net.pterodactylus.sone.data.Post;
import net.pterodactylus.sone.data.Reply;
import net.pterodactylus.sone.data.Sone;
+import net.pterodactylus.sone.freenet.wot.OwnIdentity;
+import net.pterodactylus.sone.freenet.wot.Trust;
import net.pterodactylus.util.notify.Notification;
+import net.pterodactylus.util.validation.Validation;
/**
* Filter for {@link ListNotification}s.
/**
* Filters new-post and new-reply notifications in the given list of
- * notifications. If {@code currentSone} is <code>null</code>, nothing is
- * filtered and the given list is returned.
- * If {@code currentSone} is not {@code null}, only posts that are posted by
- * a friend Sone or the Sone itself, and replies that are replies to posts
- * of friend Sones or the Sone itself will be retained
- * in the notifications.
+ * notifications. If {@code currentSone} is <code>null</code>, new-post and
+ * new-reply notifications are removed completely. If {@code currentSone} is
+ * not {@code null}, only posts that are posted by a friend Sone or the Sone
+ * itself, and replies that are replies to posts of friend Sones or the Sone
+ * itself will be retained in the notifications.
*
* @param notifications
* The notifications to filter
* The current Sone, or {@code null} if not logged in
* @return The filtered notifications
*/
- public static List<Notification> filterNotifications(List<Notification> notifications, Sone currentSone) {
- if (currentSone == null) {
- return notifications;
- }
- ListNotification<Post> newPostNotification = getNotification(notifications, "new-post-notification", Post.class);
- System.out.println("Found new-post-notification with " + ((newPostNotification != null) ? newPostNotification.getElements().size() : -1) + " posts.");
- if (newPostNotification != null) {
- List<Post> newPosts = new ArrayList<Post>();
- for (Post post : newPostNotification.getElements()) {
- System.out.println("Checking Post: " + post);
- if (currentSone.hasFriend(post.getSone().getId()) || currentSone.equals(post.getSone())) {
- System.out.println(" CS.hF: " + currentSone.hasFriend(post.getSone().getId()));
- System.out.println(" CS.e:" + currentSone.equals(post.getSone()));
- newPosts.add(post);
+ @SuppressWarnings("unchecked")
+ public static List<Notification> filterNotifications(Collection<? extends Notification> notifications, Sone currentSone) {
+ List<Notification> filteredNotifications = new ArrayList<Notification>();
+ for (Notification notification : notifications) {
+ if (notification.getId().equals("new-post-notification")) {
+ ListNotification<Post> filteredNotification = filterNewPostNotification((ListNotification<Post>) notification, currentSone);
+ if (filteredNotification != null) {
+ filteredNotifications.add(filteredNotification);
+ }
+ } else if (notification.getId().equals("new-reply-notification")) {
+ ListNotification<Reply> filteredNotification = filterNewReplyNotification((ListNotification<Reply>) notification, currentSone);
+ if (filteredNotification != null) {
+ filteredNotifications.add(filteredNotification);
}
- }
- int notificationIndex = notifications.indexOf(newPostNotification);
- if (newPosts.isEmpty()) {
- System.out.println("Removing notification.");
- notifications.remove(notificationIndex);
} else {
- System.out.println("Replacing Notification.");
- newPostNotification = new ListNotification<Post>(newPostNotification);
- newPostNotification.setElements(newPosts);
- notifications.set(notificationIndex, newPostNotification);
+ filteredNotifications.add(notification);
}
}
- ListNotification<Reply> newReplyNotification = getNotification(notifications, "new-replies-notification", Reply.class);
- System.out.println("Found new-reply-notification with " + ((newReplyNotification != null) ? newReplyNotification.getElements().size() : -1) + " replies.");
- if (newReplyNotification != null) {
- List<Reply> newReplies = new ArrayList<Reply>();
- for (Reply reply : newReplyNotification.getElements()) {
- System.out.println("Checking Reply: " + reply);
- if (currentSone.hasFriend(reply.getPost().getSone().getId()) || currentSone.equals(reply.getPost().getSone())) {
- System.out.println(" CS.hF: " + currentSone.hasFriend(reply.getPost().getSone().getId()));
- System.out.println(" CS.e: " + currentSone.equals(reply.getPost().getSone()));
- newReplies.add(reply);
- }
+ return filteredNotifications;
+ }
+
+ /**
+ * Filters the new posts of the given notification. If {@code currentSone}
+ * is {@code null}, {@code null} is returned and the notification is
+ * subsequently removed. Otherwise only posts that are posted by friend
+ * Sones of the given Sone are retained; all other posts are removed.
+ *
+ * @param newPostNotification
+ * The new-post notification
+ * @param currentSone
+ * The current Sone, or {@code null} if not logged in
+ * @return The filtered new-post notification, or {@code null} if the
+ * notification should be removed
+ */
+ public static ListNotification<Post> filterNewPostNotification(ListNotification<Post> newPostNotification, Sone currentSone) {
+ if (currentSone == null) {
+ return null;
+ }
+ List<Post> newPosts = new ArrayList<Post>();
+ for (Post post : newPostNotification.getElements()) {
+ if (isPostVisible(currentSone, post)) {
+ newPosts.add(post);
}
- int notificationIndex = notifications.indexOf(newReplyNotification);
- if (newReplies.isEmpty()) {
- System.out.println("Removing Notification.");
- notifications.remove(notificationIndex);
- } else {
- System.out.println("Replacing Notification.");
- newReplyNotification = new ListNotification<Reply>(newReplyNotification);
- newReplyNotification.setElements(newReplies);
- notifications.set(notificationIndex, newReplyNotification);
+ }
+ if (newPosts.isEmpty()) {
+ return null;
+ }
+ if (newPosts.size() == newPostNotification.getElements().size()) {
+ return newPostNotification;
+ }
+ ListNotification<Post> filteredNotification = new ListNotification<Post>(newPostNotification);
+ filteredNotification.setElements(newPosts);
+ return filteredNotification;
+ }
+
+ /**
+ * Filters the new replies of the given notification. If {@code currentSone}
+ * is {@code null}, {@code null} is returned and the notification is
+ * subsequently removed. Otherwise only replies that are replies to posts
+ * that are posted by friend Sones of the given Sone are retained; all other
+ * replies are removed.
+ *
+ * @param newReplyNotification
+ * The new-reply notification
+ * @param currentSone
+ * The current Sone, or {@code null} if not logged in
+ * @return The filtered new-reply notification, or {@code null} if the
+ * notification should be removed
+ */
+ public static ListNotification<Reply> filterNewReplyNotification(ListNotification<Reply> newReplyNotification, Sone currentSone) {
+ if (currentSone == null) {
+ return null;
+ }
+ List<Reply> newReplies = new ArrayList<Reply>();
+ for (Reply reply : newReplyNotification.getElements()) {
+ if (isReplyVisible(currentSone, reply)) {
+ newReplies.add(reply);
}
}
- return notifications;
+ if (newReplies.isEmpty()) {
+ return null;
+ }
+ if (newReplies.size() == newReplyNotification.getElements().size()) {
+ return newReplyNotification;
+ }
+ ListNotification<Reply> filteredNotification = new ListNotification<Reply>(newReplyNotification);
+ filteredNotification.setElements(newReplies);
+ return filteredNotification;
}
/**
- * Finds the notification with the given ID in the list of notifications and
- * returns it.
+ * Checks whether a post is visible to the given Sone. A post is not
+ * considered visible if one of the following statements is true:
+ * <ul>
+ * <li>The post does not have a Sone.</li>
+ * <li>The Sone of the post is not the given Sone, the given Sone does not
+ * follow the post’s Sone, and the given Sone is not the recipient of the
+ * post.</li>
+ * <li>The trust relationship between the two Sones can not be retrieved.</li>
+ * <li>The given Sone has explicitely assigned negative trust to the post’s
+ * Sone.</li>
+ * <li>The given Sone has not explicitely assigned negative trust to the
+ * post’s Sone but the implicit trust is negative.</li>
+ * <li>The post’s {@link Post#getTime() time} is in the future.</li>
+ * </ul>
+ * If none of these statements is true the post is considered visible.
*
- * @param <T>
- * The type of the item in the notification
- * @param notifications
- * The notification to search
- * @param notificationId
- * The ID of the requested notification
- * @param notificationElementClass
- * The class of the notification item
- * @return The requested notification, or {@code null} if no notification
- * with the given ID could be found
+ * @param sone
+ * The Sone that checks for a post’s visibility
+ * @param post
+ * The post to check for visibility
+ * @return {@code true} if the post is considered visible, {@code false}
+ * otherwise
*/
- @SuppressWarnings("unchecked")
- private static <T> ListNotification<T> getNotification(Collection<? extends Notification> notifications, String notificationId, Class<T> notificationElementClass) {
- for (Notification notification : notifications) {
- if (!notificationId.equals(notification.getId())) {
- continue;
+ public static boolean isPostVisible(Sone sone, Post post) {
+ Validation.begin().isNotNull("Sone", sone).isNotNull("Post", post).check().isNotNull("Sone’s Identity", sone.getIdentity()).check().isInstanceOf("Sone’s Identity", sone.getIdentity(), OwnIdentity.class).check();
+ Sone postSone = post.getSone();
+ if (postSone == null) {
+ return false;
+ }
+ Trust trust = postSone.getIdentity().getTrust((OwnIdentity) sone.getIdentity());
+ if (trust != null) {
+ if ((trust.getExplicit() != null) && (trust.getExplicit() < 0)) {
+ return false;
}
- return (ListNotification<T>) notification;
+ if ((trust.getExplicit() == null) && (trust.getImplicit() != null) && (trust.getImplicit() < 0)) {
+ return false;
+ }
+ } else {
+ return false;
+ }
+ if ((!postSone.equals(sone)) && !sone.hasFriend(postSone.getId()) && !sone.equals(post.getRecipient())) {
+ return false;
+ }
+ if (post.getTime() > System.currentTimeMillis()) {
+ return false;
+ }
+ return true;
+ }
+
+ /**
+ * Checks whether a reply is visible to the given Sone. A reply is not
+ * considered visible if one of the following statements is true:
+ * <ul>
+ * <li>The reply does not have a post.</li>
+ * <li>The reply’s post does not have a Sone.</li>
+ * <li>The Sone of the reply’s post is not the given Sone, the given Sone
+ * does not follow the reply’s post’s Sone, and the given Sone is not the
+ * recipient of the reply’s post.</li>
+ * <li>The trust relationship between the two Sones can not be retrieved.</li>
+ * <li>The given Sone has explicitely assigned negative trust to the post’s
+ * Sone.</li>
+ * <li>The given Sone has not explicitely assigned negative trust to the
+ * reply’s post’s Sone but the implicit trust is negative.</li>
+ * <li>The reply’s post’s {@link Post#getTime() time} is in the future.</li>
+ * <li>The reply’s {@link Reply#getTime() time} is in the future.</li>
+ * </ul>
+ * If none of these statements is true the reply is considered visible.
+ *
+ * @param sone
+ * The Sone that checks for a post’s visibility
+ * @param reply
+ * The reply to check for visibility
+ * @return {@code true} if the reply is considered visible, {@code false}
+ * otherwise
+ */
+ public static boolean isReplyVisible(Sone sone, Reply reply) {
+ Validation.begin().isNotNull("Sone", sone).isNotNull("Reply", reply).check().isNotNull("Sone’s Identity", sone.getIdentity()).check().isInstanceOf("Sone’s Identity", sone.getIdentity(), OwnIdentity.class).check();
+ Post post = reply.getPost();
+ if (post == null) {
+ return false;
+ }
+ if (!isPostVisible(sone, post)) {
+ return false;
+ }
+ if (reply.getTime() > System.currentTimeMillis()) {
+ return false;
}
- return null;
+ return true;
}
}
projects / Sone.git / blobdiff