feat(conversation): Add option to allow deleting one-to-one conversations

Signed-off-by: Joas Schilling <coding@schilljs.com>

docs/settings.md

@@ -112,6 +112,7 @@ Legend:
 | `federation_only_trusted_servers`    | string<br>`1` or `0`                                             | `0`        | Yes  |        | 🏗️ *Work in progress:* Whether federation should be limited to the list of "Trusted servers"                                                                                                                                                                                    |
 | `conversations_files`                | string<br>`1` or `0`                                             | `1`        | No   | 🖌️    | Whether the files app integration is enabled allowing to start conversations in the right sidebar                                                                                                                                                                                |
 | `conversations_files_public_shares`  | string<br>`1` or `0`                                             | `1`        | No   | 🖌️    | Whether the public share integration is enabled allowing to start conversations in the right sidebar on the public share page (Requires `conversations_files` also to be enabled)                                                                                                |
+| `delete_one_to_one_conversations`    | string<br>`1` or `0`                                             | `0`        | No   | ️      | Whether one-to-one conversations can be left by either participant or should be deleted when one participant leaves                                                                                                                                                              |
 | `enable_matterbridge`                | string<br>`1` or `0`                                             | `0`        | No   | 🖌️    | Whether the Matterbridge integration is enabled and can be configured                                                                                                                                                                                                            |
 | `force_passwords`                    | string<br>`1` or `0`                                             | `0`        | No   | ️      | Whether public chats are forced to use a password                                                                                                                                                                                                                                |
 | `inactivity_lock_after_days`         | int                                                              | `0`        | No   |        | A duration (in days) after which rooms are locked. Calculated from the last activity in the room.                                                                                                                                                                                |

lib/Controller/ChatController.php

@@ -1185,10 +1185,15 @@ class ChatController extends AEnvironmentAwareOCSController {
 	#[RequireReadWriteConversation]
 	public function clearHistory(): DataResponse {
 		$attendee = $this->participant->getAttendee();
-		if (!$this->participant->hasModeratorPermissions(false)
-				|| $this->room->getType() === Room::TYPE_ONE_TO_ONE
-				|| $this->room->getType() === Room::TYPE_ONE_TO_ONE_FORMER) {
-			// Actor is not a moderator or not the owner of the message
+		if (!$this->participant->hasModeratorPermissions(false)) {
+			// Actor is not a moderator
+			return new DataResponse(null, Http::STATUS_FORBIDDEN);
+		}
+
+		if (!$this->appConfig->getAppValueBool('delete_one_to_one_conversations')
+				&& ($this->room->getType() === Room::TYPE_ONE_TO_ONE
+					|| $this->room->getType() === Room::TYPE_ONE_TO_ONE_FORMER)) {
+			// Not allowed to purge one-to-one conversations
 			return new DataResponse(null, Http::STATUS_FORBIDDEN);
 		}
 

lib/Controller/RoomController.php

@@ -70,6 +70,7 @@ use OCP\AppFramework\Http\Attribute\NoAdminRequired;
 use OCP\AppFramework\Http\Attribute\OpenAPI;
 use OCP\AppFramework\Http\Attribute\PublicPage;
 use OCP\AppFramework\Http\DataResponse;
+use OCP\AppFramework\Services\IAppConfig;
 use OCP\AppFramework\Utility\ITimeFactory;
 use OCP\EventDispatcher\IEventDispatcher;
 use OCP\Federation\ICloudIdManager;
@@ -116,6 +117,7 @@ class RoomController extends AEnvironmentAwareOCSController {
 		protected ChecksumVerificationService $checksumVerificationService,
 		protected RoomFormatter $roomFormatter,
 		protected IConfig $config,
+		protected IAppConfig $appConfig,
 		protected Config $talkConfig,
 		protected ICloudIdManager $cloudIdManager,
 		protected IPhoneNumberUtil $phoneNumberUtil,
@@ -857,7 +859,8 @@ class RoomController extends AEnvironmentAwareOCSController {
 	#[PublicPage]
 	#[RequireModeratorParticipant]
 	public function deleteRoom(): DataResponse {
-		if ($this->room->getType() === Room::TYPE_ONE_TO_ONE || $this->room->getType() === Room::TYPE_ONE_TO_ONE_FORMER) {
+		if (!$this->appConfig->getAppValueBool('delete_one_to_one_conversations')
+			&& in_array($this->room->getType(), [Room::TYPE_ONE_TO_ONE, Room::TYPE_ONE_TO_ONE_FORMER], true)) {
 			return new DataResponse(null, Http::STATUS_BAD_REQUEST);
 		}
 
@@ -1375,7 +1378,7 @@ class RoomController extends AEnvironmentAwareOCSController {
 		}
 
 		if ($room->getType() !== Room::TYPE_CHANGELOG &&
-			$room->getObjectType() !== 'file' &&
+			$room->getObjectType() !== Room::OBJECT_TYPE_FILE &&
 			$this->participantService->getNumberOfUsers($room) === 1 &&
 			\in_array($participant->getAttendee()->getParticipantType(), [
 				Participant::USER,
@@ -1386,6 +1389,12 @@ class RoomController extends AEnvironmentAwareOCSController {
 			return new DataResponse(null);
 		}
 
+		if ($this->appConfig->getAppValueBool('delete_one_to_one_conversations')
+			&& in_array($this->room->getType(), [Room::TYPE_ONE_TO_ONE, Room::TYPE_ONE_TO_ONE_FORMER], true)) {
+			$this->roomService->deleteRoom($room);
+			return new DataResponse(null);
+		}
+
 		$currentUser = $this->userManager->get($this->userId);
 		if (!$currentUser instanceof IUser) {
 			return new DataResponse(['error' => 'participant'], Http::STATUS_NOT_FOUND);

lib/Service/RoomFormatter.php

@@ -20,6 +20,7 @@ use OCA\Talk\Room;
 use OCA\Talk\Webinary;
 use OCP\App\IAppManager;
 use OCP\AppFramework\Db\DoesNotExistException;
+use OCP\AppFramework\Services\IAppConfig;
 use OCP\AppFramework\Utility\ITimeFactory;
 use OCP\Comments\IComment;
 use OCP\IConfig;
@@ -36,6 +37,7 @@ use OCP\UserStatus\IUserStatus;
 class RoomFormatter {
 	public function __construct(
 		protected Config $talkConfig,
+		protected IAppConfig $appConfig,
 		protected AvatarService $avatarService,
 		protected ParticipantService $participantService,
 		protected ChatManager $chatManager,
@@ -320,6 +322,13 @@ class RoomFormatter {
 					&& $room->getType() !== Room::TYPE_ONE_TO_ONE_FORMER
 					&& $currentParticipant->hasModeratorPermissions(false);
 				$roomData['canLeaveConversation'] = $room->getType() !== Room::TYPE_NOTE_TO_SELF;
+
+				if ($this->appConfig->getAppValueBool('delete_one_to_one_conversations')
+					&& in_array($room->getType(), [Room::TYPE_ONE_TO_ONE, Room::TYPE_ONE_TO_ONE_FORMER], true)) {
+					$roomData['canDeleteConversation'] = true;
+					$roomData['canLeaveConversation'] = false;
+				}
+
 				$roomData['canEnableSIP'] =
 					$this->talkConfig->isSIPConfigured()
 					&& !preg_match(Room::SIP_INCOMPATIBLE_REGEX, $room->getToken())

tests/integration/features/chat-1/delete.feature

@@ -235,3 +235,13 @@ Feature: chat/delete
     Then user "participant2" sees the following system messages in room "room1" with 200 (v1)
       | room  | actorType | actorId      | actorDisplayName         | systemMessage   |
       | room1 | users     | participant1 | participant1-displayname | history_cleared |
+
+  Scenario: Can delete chat history in one-to-one conversations when config is set
+    Given user "participant1" creates room "room" with 201 (v4)
+      | roomType | 1 |
+      | invite   | participant2 |
+    And user "participant1" sends message "Message" to room "room" with 201
+    Then user "participant1" deletes chat history for room "room" with 403
+    When the following "spreed" app config is set
+      | delete_one_to_one_conversations | 1 |
+    Then user "participant1" deletes chat history for room "room" with 200

tests/integration/features/conversation-3/one-to-one.feature

@@ -198,7 +198,7 @@ Feature: conversation-2/one-to-one
       | users      | participant1 | 1               |
       | users      | participant2 | 1               |
 
-  Scenario: Check share restrictions on one to one conversatio
+  Scenario: Check share restrictions on one to one conversation
     Given the following "core" app config is set
       | shareapi_restrict_user_enumeration_full_match | no |
       | shareapi_allow_share_dialog_user_enumeration | yes |
@@ -207,3 +207,33 @@ Feature: conversation-2/one-to-one
     And user "participant1" creates room "room15" with 403 (v4)
       | roomType | 1 |
       | invite   | participant2 |
+
+  Scenario: Remove self from one-to-one conversations when deletable config is set deletes it
+    Given user "participant1" creates room "room" with 201 (v4)
+      | roomType | 1 |
+      | invite   | participant2 |
+    Then user "participant1" removes themselves from room "room" with 200 (v4)
+    And user "participant1" is participant of the following rooms (v4)
+    And user "participant2" is participant of the following rooms (v4)
+      | id   | type | participantType |
+      | room | 1    | 1               |
+    When user "participant1" creates room "room" with 200 (v4)
+      | roomType | 1 |
+      | invite   | participant2 |
+    And the following "spreed" app config is set
+      | delete_one_to_one_conversations | 1 |
+    Then user "participant1" removes themselves from room "room" with 200 (v4)
+    And user "participant1" is participant of the following rooms (v4)
+    And user "participant2" is participant of the following rooms (v4)
+
+  Scenario: Deleting one-to-one conversations is possible when deletable config is set
+    Given user "participant1" creates room "room" with 201 (v4)
+      | roomType | 1 |
+      | invite   | participant2 |
+    And user "participant1" sends message "Message" to room "room" with 201
+    Then user "participant1" deletes room "room" with 400 (v4)
+    When the following "spreed" app config is set
+      | delete_one_to_one_conversations | 1 |
+    Then user "participant1" deletes room "room" with 200 (v4)
+    And user "participant1" is participant of the following rooms (v4)
+    And user "participant2" is participant of the following rooms (v4)