zdm/envoy
zdm/envoy
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Removed any server side trace of message deletion

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This commit is contained in:
Leon Hofmeister 2020-09-29 18:26:28 +02:00
parent 0be5d0e12a
commit 57e85f56e9
Signed by: delvh
GPG Key ID: 3DECE05F6D9A647C
11 changed files with 48 additions and 220 deletions
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20
client/src/main/java/envoy/client/event/MessageDeletion.java Normal file
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@ -0,0 +1,20 @@
package envoy.client.event;
import envoy.event.Event;
/**
* Conveys the deletion of a message between clients and server.
*
* @author Leon Hofmeister
* @since Envoy Common v0.3-beta
*/
public class MessageDeletion extends Event<Long> {
private static final long serialVersionUID = 1L;
/**
* @param messageID the ID of the deleted message
* @since Envoy Common v0.3-beta
*/
public MessageDeletion(long messageID) { super(messageID); }
}

2
client/src/main/java/envoy/client/ui/control/MessageControl.java
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@ -78,7 +78,7 @@ public final class MessageControl extends Label {
// Delete message - if own message - action
if (ownMessage && client.isOnline()) {
final var deleteMenuItem = new MenuItem("Delete");
final var deleteMenuItem = new MenuItem("Delete locally");
deleteMenuItem.setOnAction(e -> MessageUtil.deleteMessage(message));
items.add(deleteMenuItem);
}

1
client/src/main/java/envoy/client/ui/control/TextInputContextMenu.java
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@ -82,6 +82,7 @@ public class TextInputContextMenu extends ContextMenu {
copyMI.disableProperty().bind(control.selectedTextProperty().isEmpty());
deleteMI.disableProperty().bind(control.selectedTextProperty().isEmpty());
clearMI.disableProperty().bind(control.textProperty().isEmpty());
selectAllMI.disableProperty().bind(control.textProperty().isEmpty());
setOnShowing(e -> pasteMI.setDisable(!Clipboard.getSystemClipboard().hasString()));
selectAllMI.getProperties().put("refreshMenu", Boolean.TRUE);

20
client/src/main/java/envoy/client/ui/controller/ChatScene.java
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@ -223,7 +223,7 @@ public final class ChatScene implements EventListener, Restorable {
// The sender of the message is the recipient of the chat
// Exceptions: this user is the sender (sync) or group message (group is
// recipient)
final boolean ownMessage = message.getSenderID() == localDB.getUser().getID();
final var ownMessage = message.getSenderID() == localDB.getUser().getID();
final var recipientID = message instanceof GroupMessage || ownMessage ? message.getRecipientID() : message.getSenderID();
localDB.getChat(recipientID).ifPresent(chat -> {
@ -308,13 +308,6 @@ public final class ChatScene implements EventListener, Restorable {
@Event(eventType = Logout.class, priority = 200)
private void onLogout() { eventBus.removeListener(this); }
@Event(priority = 200)
private void onMessageDeletion(MessageDeletion message) {
// Clearing the selection if the own user was the sender of this event
if (message.isOwnEvent()) Platform.runLater(() -> { messageList.getSelectionModel().clearSelection(); });
}
/**
* Initializes all {@code SystemCommands} used in {@code ChatScene}.
*
@ -412,7 +405,7 @@ public final class ChatScene implements EventListener, Restorable {
if (currentChat != null) {
topBarContactLabel.setText(currentChat.getRecipient().getName());
if (currentChat.getRecipient() instanceof User) {
final String status = ((User) currentChat.getRecipient()).getStatus().toString();
final var status = ((User) currentChat.getRecipient()).getStatus().toString();
topBarStatusLabel.setText(status);
topBarStatusLabel.getStyleClass().add(status.toLowerCase());
recipientProfilePic.setImage(IconUtil.loadIconThemeSensitive("user_icon", 43));
@ -420,7 +413,7 @@ public final class ChatScene implements EventListener, Restorable {
topBarStatusLabel.setText(currentChat.getRecipient().getContacts().size() + " members");
recipientProfilePic.setImage(IconUtil.loadIconThemeSensitive("group_icon", 43));
}
final Rectangle clip = new Rectangle();
final var clip = new Rectangle();
clip.setWidth(43);
clip.setHeight(43);
clip.setArcHeight(43);
@ -778,6 +771,13 @@ public final class ChatScene implements EventListener, Restorable {
pendingAttachment = messageAttachment;
}
/**
* Clears the current message selection
*
* @since Envoy Client v0.3-beta
*/
public void clearMessageSelection() { messageList.getSelectionModel().clearSelection(); }
@FXML
private void searchContacts() {
chats.setPredicate(contactSearch.getText().isBlank() ? c -> true

12
client/src/main/java/envoy/client/util/MessageUtil.java
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@ -8,8 +8,9 @@ import java.util.logging.*;
import javafx.stage.FileChooser;
import envoy.client.data.*;
import envoy.client.event.MessageDeletion;
import envoy.client.ui.controller.ChatScene;
import envoy.data.Message;
import envoy.event.MessageDeletion;
import envoy.util.EnvoyLog;
import dev.kske.eventbus.EventBus;
@ -45,13 +46,12 @@ public class MessageUtil {
*/
public static void deleteMessage(Message message) {
final var messageDeletionEvent = new MessageDeletion(message.getID());
messageDeletionEvent.setOwnEvent();
final var controller = Context.getInstance().getSceneContext().getController();
if (controller.getClass().equals(ChatScene.class)) ((ChatScene) controller).clearMessageSelection();
// Removing the message locally
EventBus.getInstance().dispatch(messageDeletionEvent);
// Removing the message on the server and this chat's recipients
Context.getInstance().getClient().send(messageDeletionEvent);
logger.log(Level.FINEST, "message deletion was requested for " + message);
}
@ -64,7 +64,7 @@ public class MessageUtil {
*/
public static void forwardMessage(Message message) { logger.log(Level.FINEST, "message forwarding was requested for " + message); }
/**selected
/**
* Quotes the given message.
* Currently not implemented.
*
@ -95,7 +95,7 @@ public class MessageUtil {
} else file = new File(downloadLocation, fileName);
// A file was selected
if (file != null) try (FileOutputStream fos = new FileOutputStream(file)) {
if (file != null) try (var fos = new FileOutputStream(file)) {
fos.write(message.getAttachment().getData());
logger.log(Level.FINE, "Attachment of message was saved at " + file.getAbsolutePath());
} catch (final IOException e) {

34
common/src/main/java/envoy/event/MessageDeletion.java
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@ -1,34 +0,0 @@
package envoy.event;
/**
* Conveys the deletion of a message between clients and server.
*
* @author Leon Hofmeister
* @since Envoy Common v0.3-beta
*/
public class MessageDeletion extends Event<Long> {
private static final long serialVersionUID = 1L;
private transient boolean ownEvent;
/**
* @param messageID the ID of the deleted message
* @since Envoy Common v0.3-beta
*/
public MessageDeletion(long messageID) { super(messageID); }
/**
* @return whether the current user was the creator of this event.
* @since Envoy Common v0.3-beta
*/
public boolean isOwnEvent() { return ownEvent; }
/**
* Marks this event as being sent by this user. Is needed for a bug free
* and efficient selection clearing.
*
* @since Envoy Common v0.3-beta
*/
public void setOwnEvent() { ownEvent = true; }
}

3
server/src/main/java/envoy/server/Startup.java
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@ -56,8 +56,7 @@ public final class Startup {
new NameChangeProcessor(),
new ProfilePicChangeProcessor(),
new PasswordChangeRequestProcessor(),
new IssueProposalProcessor(),
new MessageDeletionProcessor())));
new IssueProposalProcessor())));
// Initialize the current message ID
final var persistenceManager = PersistenceManager.getInstance();

30
server/src/main/java/envoy/server/data/Contact.java
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@ -1,7 +1,7 @@
package envoy.server.data;
import java.time.Instant;
import java.util.*;
import java.util.Set;
import javax.persistence.*;
@ -98,34 +98,6 @@ public abstract class Contact {
*/
public void setCreationDate(Instant creationDate) { this.creationDate = creationDate; }
/**
* Shortcut to convert a {@code Contact} into a {@code User}.
*
* @param contact the contact to convert
* @return the casted contact
* @throws IllegalStateException if the given contact is not a User
* @since Envoy Server v0.3-beta
*/
public static User toUser(Contact contact) {
if (!(contact instanceof User)) throw new IllegalStateException("Cannot cast a non user to a user");
return (User) contact;
}
/**
* Shortcut to convert a set of {@code Contact}s into a set of {@code User}s.
*
* @param contacts the contacts to convert
* @return the casted contacts
* @throws IllegalStateException if one of the given contacts is not a User
* @since Envoy Server v0.3-beta
*/
public static Set<User> toUser(Set<Contact> contacts) {
final var newSet = new HashSet<User>();
for (final var contact : contacts)
newSet.add(toUser(contact));
return newSet;
}
@Override
public String toString() { return String.format("%s[id=%d,name=%s,%d contact(s)]", getClass().getSimpleName(), id, name, contacts.size()); }
}

81
server/src/main/java/envoy/server/data/MessageDeletion.java
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@ -1,81 +0,0 @@
package envoy.server.data;
import java.util.*;
import javax.persistence.*;
/**
* Defines a message that has been deleted.
*
* @author Leon Hofmeister
* @since Envoy Server v0.3-beta
*/
@Entity
@Table(name = "deletionEvents")
@Inheritance(strategy = InheritanceType.SINGLE_TABLE)
public final class MessageDeletion {
@Id
@GeneratedValue
protected long messageID;
@ManyToOne(targetEntity = User.class)
protected Set<User> recipientsToInform;
/**
* Creates an instance of {@code DeletionEvent}.
*
* @since Envoy Server v0.3-beta
*/
public MessageDeletion() {}
/**
* Creates an instance of {@code MessageDeletion}.
*
* @param messageID the ID of the message
* @param recipientsToInform the recipientsToInform of the message<br>
* <strong>that have not yet been notified of its
* deletion</strong>
* @since Envoy Server v0.3-beta
*/
public MessageDeletion(long messageID, Set<User> recipientsToInform) {
this.messageID = messageID;
this.recipientsToInform = recipientsToInform;
}
/**
* @return the messageID
* @since Envoy Server v0.3-beta
*/
public long getMessageID() { return messageID; }
/**
* @param messageID the messageID to set
* @since Envoy Server v0.3-beta
*/
public void setMessageID(long messageID) { this.messageID = messageID; }
/**
* @return the recipients that have yet to be informed
* @since Envoy Server v0.3-beta
*/
public Set<User> getRecipientsToInform() { return recipientsToInform; }
/**
* @param recipientsToInform the recipients that have yet to be informed
* @since Envoy Server v0.3-beta
*/
public void setRecipientsToInform(Set<User> recipientsToInform) { this.recipientsToInform = recipientsToInform; }
/**
* @param user the user who has been informed of the message deletion
* @since Envoy Server v0.3-beta
*/
public void recipientInformed(User user) { recipientsToInform.remove(user); }
/**
* @param users the users that have been informed of the message deletion
* @since Envoy Server v0.3-beta
*/
public void recipientInformed(Collection<User> users) { recipientsToInform.removeAll(users); }
}

43
server/src/main/java/envoy/server/data/PersistenceManager.java
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@ -1,7 +1,7 @@
package envoy.server.data;
import java.time.Instant;
import java.util.*;
import java.util.List;
import javax.persistence.*;
@ -9,6 +9,8 @@ import envoy.data.User.UserStatus;
import envoy.server.net.ConnectionManager;
/**
* Contains operations used for data retrieval.
*
* @author Leon Hofmeister
* @author Maximilian K&auml;fer
* @since Envoy Server Standalone v0.1-alpha
@ -100,35 +102,12 @@ public final class PersistenceManager {
public void deleteContact(Contact contact) { remove(contact); }
/**
* Deletes a {@link Message} in the database and creates a new
* {@link MessageDeletion} object for <strong>all</strong> recipients of the
* message.
* Deletes a {@link Message} in the database.
*
* @param message the {@link Message} to delete
* @return the created {@link MessageDeletion} object
* @since Envoy Server v0.3-beta
* @since Envoy Server Standalone v0.1-alpha
*/
public MessageDeletion deleteMessage(Message message) {
final var recipient = message.getRecipient();
return deleteMessage(message,
recipient instanceof Group ? Contact.toUser(getGroupByID(recipient.id).getContacts()) : Set.of(Contact.toUser(recipient)));
}
/**
* Deletes a {@link Message} in the database and creates a new
* {@link MessageDeletion} object for the given recipients of the message.
*
* @param message the {@link Message} to delete
* @param recipientsYetToInform the (sub)set of all recipients of that message
* @return the created {@link MessageDeletion} object
* @since Envoy Server v0.3-beta
*/
public MessageDeletion deleteMessage(Message message, Set<User> recipientsYetToInform) {
final MessageDeletion deletion = new MessageDeletion(message.id, recipientsYetToInform);
persist(deletion);
remove(message);
return deletion;
}
public void deleteMessage(Message message) { remove(message); }
/**
* Searches for a {@link User} with a specific ID.
@ -195,16 +174,6 @@ public final class PersistenceManager {
*/
public ConfigItem getConfigItemByID(String key) { return entityManager.find(ConfigItem.class, key); }
/**
* Searches for a {@link MessageDeletion} with the given message id.
*
* @param id the id of the message to search for
* @return the message deletion object with the specified ID or {@code null} if
* none is found
* @since Envoy Server v0.3-beta
*/
public MessageDeletion getMessageDeletionByID(long id) { return entityManager.find(MessageDeletion.class, id); }
/**
* Returns all messages received while being offline or the ones that have
* changed.

18
server/src/main/java/envoy/server/processors/MessageDeletionProcessor.java
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@ -1,18 +0,0 @@
package envoy.server.processors;
import java.io.IOException;
import envoy.event.MessageDeletion;
import envoy.server.net.ObjectWriteProxy;
/**
* Listens for and handles incoming {@link MessageDeletion}s.
*
* @author Leon Hofmeister
* @since Envoy Server v0.3-beta
*/
public class MessageDeletionProcessor implements ObjectProcessor<MessageDeletion> {
@Override
public void process(MessageDeletion message, long socketID, ObjectWriteProxy writeProxy) throws IOException {}
}