Add method to report fraud

libs/labelbox/src/labelbox/client.py

@@ -503,6 +503,51 @@ def delete_model_config(self, id: str) -> bool:
             raise ResourceNotFoundError(Entity.ModelConfig, params)
         return result["deleteModelConfig"]["success"]
 
+    def delete_project_memberships(
+        self, project_id: str, user_ids: list[str]
+    ) -> dict:
+        """Deletes project memberships for one or more users.
+
+        Args:
+            project_id (str): ID of the project
+            user_ids (list[str]): List of user IDs to remove from the project
+
+        Returns:
+            dict: Result containing:
+                - success (bool): True if operation succeeded
+                - errorMessage (str or None): Error message if operation failed
+
+        Example:
+            >>> result = client.delete_project_memberships(
+            >>>     project_id="project123",
+            >>>     user_ids=["user1", "user2"]
+            >>> )
+            >>> if result["success"]:
+            >>>     print("Users removed successfully")
+            >>> else:
+            >>>     print(f"Error: {result['errorMessage']}")
+        """
+        mutation = """mutation DeleteProjectMembershipsPyApi(
+            $projectId: ID!
+            $userIds: [ID!]!
+        ) {
+            deleteProjectMemberships(where: {
+                projectId: $projectId
+                userIds: $userIds
+            }) {
+                success
+                errorMessage
+            }
+        }"""
+
+        params = {
+            "projectId": project_id,
+            "userIds": user_ids,
+        }
+
+        result = self.execute(mutation, params)
+        return result["deleteProjectMemberships"]
+
     def create_dataset(
         self, iam_integration=IAMIntegration._DEFAULT, **kwargs
     ) -> Dataset:

libs/labelbox/src/labelbox/schema/project.py

@@ -317,14 +317,28 @@ def get_resource_tags(self) -> List[ResourceTag]:
 
         return [ResourceTag(self.client, tag) for tag in results]
 
-    def labels(self, datasets=None, order_by=None) -> PaginatedCollection:
+    def labels(self, datasets=None, order_by=None, created_by=None) -> PaginatedCollection:
         """Custom relationship expansion method to support limited filtering.
 
         Args:
             datasets (iterable of Dataset): Optional collection of Datasets
                 whose Labels are sought. If not provided, all Labels in
                 this Project are returned.
             order_by (None or (Field, Field.Order)): Ordering clause.
+            created_by (str or User): Optional. Filter labels by the user who created them.
+                Can be a user ID string or a User object.
+
+        Returns:
+            PaginatedCollection of Labels matching the filters.
+
+        Example:
+            >>> # Get all labels
+            >>> all_labels = project.labels()
+            >>> 
+            >>> # Get labels by specific user
+            >>> user_labels = project.labels(created_by=user_id)
+            >>> # or
+            >>> user_labels = project.labels(created_by=user_object)
         """
         Label = Entity.Label
 
@@ -335,10 +349,20 @@ def labels(self, datasets=None, order_by=None) -> PaginatedCollection:
                 stacklevel=2,
             )
 
+        # Build where clause
+        where_clauses = []
+
         if datasets is not None:
-            where = " where:{dataRow: {dataset: {id_in: [%s]}}}" % ", ".join(
-                '"%s"' % dataset.uid for dataset in datasets
-            )
+            dataset_ids = ", ".join('"%s"' % dataset.uid for dataset in datasets)
+            where_clauses.append(f"dataRow: {{dataset: {{id_in: [{dataset_ids}]}}}}")
+
+        if created_by is not None:
+            # Handle both User object and user_id string
+            user_id = created_by.uid if hasattr(created_by, 'uid') else created_by
+            where_clauses.append(f'createdBy: {{id: "{user_id}"}}')
+
+        if where_clauses:
+            where = " where:{" + ", ".join(where_clauses) + "}"
         else:
             where = ""
 
@@ -370,6 +394,39 @@ def labels(self, datasets=None, order_by=None) -> PaginatedCollection:
             Label,
         )
 
+    def delete_labels_by_user(self, user_id: str) -> int:
+        """Soft deletes all labels created by a specific user in this project.
+
+        This performs a soft delete (sets deleted=true in the database).
+        The labels will no longer appear in queries but remain in the database.
+        Labels are deleted in chunks of 500 to avoid overwhelming the API.
+
+        Args:
+            user_id (str): The ID of the user whose labels to delete.
+
+        Returns:
+            int: Number of labels deleted.
+
+        Example:
+            >>> project = client.get_project(project_id)
+            >>> deleted_count = project.delete_labels_by_user(user_id)
+            >>> print(f"Deleted {deleted_count} labels")
+        """
+        labels_to_delete = list(self.labels(created_by=user_id))
+
+        if not labels_to_delete:
+            return 0
+
+        chunk_size = 500
+        total_deleted = 0
+
+        for i in range(0, len(labels_to_delete), chunk_size):
+            chunk = labels_to_delete[i:i + chunk_size]
+            Entity.Label.bulk_delete(chunk)
+            total_deleted += len(chunk)
+
+        return total_deleted
+
     def export(
         self,
         task_name: Optional[str] = None,

libs/lbox-alignerr/src/alignerr/alignerr_project.py

@@ -13,6 +13,7 @@
     ProjectBoostWorkforce,
 )
 from labelbox.pagination import PaginatedCollection
+from labelbox.orm.model import Entity
 
 logger = logging.getLogger(__name__)
 
@@ -153,6 +154,238 @@ def get_project_owner(self) -> Optional[ProjectBoostWorkforce]:
             client=self.client, project_id=self.project.uid
         )
 
+    def _get_user_labels(self, user_id: str):
+        """Get all labels created by a user in this project.
+
+        Args:
+            user_id: ID of the user
+
+        Returns:
+            List of Label objects
+
+        Raises:
+            Exception: If labels cannot be retrieved
+        """
+        labels = list(self.project.labels(created_by=user_id))
+        logger.info(
+            "Found %d labels created by user %s in project %s",
+            len(labels),
+            user_id,
+            self.project.uid
+        )
+        return labels
+
+    def _create_trust_safety_case(self, user_id: str, event_metadata: dict) -> bool:
+        """Create a Trust & Safety case for a user.
+
+        Args:
+            user_id: ID of the user being reported
+            event_metadata: JSON metadata about the event
+
+        Returns:
+            True if case was created successfully
+
+        Raises:
+            Exception: If T&S case creation fails
+        """
+        mutation = """mutation CreateTrustAndSafetyCasePyApi(
+            $subjectUserId: String!
+            $eventType: CaseEventGqlType!
+            $severity: CaseSeverityGqlType!
+            $eventMetadata: Json!
+        ) {
+            createTrustAndSafetyCase(input: {
+                subjectUserId: $subjectUserId
+                eventType: $eventType
+                severity: $severity
+                eventMetadata: $eventMetadata
+            }) {
+                success
+            }
+        }"""
+
+        params = {
+            "subjectUserId": user_id,
+            "eventType": "manual",
+            "severity": "high",
+            "eventMetadata": event_metadata,
+        }
+
+        result = self.client.execute(mutation, params)
+        success = result["createTrustAndSafetyCase"]["success"]
+
+        if success:
+            logger.info(
+                "Created T&S case for user %s in project %s",
+                user_id,
+                self.project.uid
+            )
+
+        return success
+
+    def _remove_user_from_project(self, user_id: str) -> None:
+        """Remove a user from this project.
+
+        Args:
+            user_id: ID of the user to remove
+
+        Raises:
+            ValueError: If user not found in project
+            Exception: If removal fails
+        """
+        # Check if user is in project members
+        user_found = False
+        for member in self.project.members():
+            if member.user().uid == user_id:
+                user_found = True
+                break
+
+        if not user_found:
+            logger.warning("User %s not found in project %s members", user_id, self.project.uid)
+            raise ValueError(f"User {user_id} not found in project members")
+
+        # Remove user using deleteProjectMemberships mutation
+        result = self.client.delete_project_memberships(
+            project_id=self.project.uid,
+            user_ids=[user_id]
+        )
+
+        if not result.get("success"):
+            error_message = result.get("errorMessage", "Unknown error")
+            logger.error("Failed to remove user: %s", error_message)
+            raise Exception(f"Failed to remove user: {error_message}")
+
+        logger.info(
+            "Removed user %s from project %s",
+            user_id,
+            self.project.uid
+        )
+
+    def _delete_user_labels(self, labels) -> int:
+        """Delete a list of labels.
+
+        Args:
+            labels: List of Label objects to delete
+
+        Returns:
+            Number of labels deleted
+
+        Raises:
+            Exception: If deletion fails
+        """
+        if not labels:
+            return 0
+
+        Entity.Label.bulk_delete(labels)
+        logger.info(
+            "Deleted %d labels in project %s",
+            len(labels),
+            self.project.uid
+        )
+        return len(labels)
+
+    def report_fraud(
+        self,
+        user_id: str,
+        reason: str,
+        custom_metadata: dict = None
+    ) -> dict:
+        """Report potential fraud by a user in this project.
+
+        This method performs the following actions:
+        1. Gets all labels created by the user in this project
+        2. Creates a Trust & Safety case for the user (MANUAL event type, HIGH severity)
+        3. Removes the user from the project (prevents creating more labels)
+        4. Deletes all the user's labels
+
+        Args:
+            user_id (str): The ID of the user to report for fraud.
+            reason (str): Reason for reporting fraud (e.g., "Spam labels", "Low quality work").
+            custom_metadata (dict, optional): Additional metadata to include in the T&S case.
+                Will be merged with automatic metadata (project_id, reason, label_count, label_ids).
+
+        Returns:
+            dict: A dictionary containing:
+                - ts_case_id: Status of T&S case creation ("created" if successful)
+                - labels_found: Number of labels found by the user
+                - user_removed: Whether the user was successfully removed
+                - labels_deleted: Number of labels deleted
+                - error: Any error message if any step failed
+
+        Example:
+            >>> from alignerr import AlignerrWorkspace
+            >>> from labelbox import Client
+            >>> 
+            >>> client = Client(api_key="YOUR_API_KEY")
+            >>> workspace = AlignerrWorkspace.from_labelbox(client)
+            >>> project = workspace.project_builder().from_existing(project_id)
+            >>> 
+            >>> # Report fraud with reason
+            >>> result = project.report_fraud(user_id, reason="Spam labels detected")
+            >>> print(f"Removed user: {result['user_removed']}, Deleted {result['labels_deleted']} labels")
+            >>> 
+            >>> # With additional custom metadata
+            >>> result = project.report_fraud(
+            >>>     user_id,
+            >>>     reason="Production quality issues",
+            >>>     custom_metadata={"ticket_id": "TICKET-123", "reviewer": "john@example.com"}
+            >>> )
+        """
+        result = {
+            "ts_case_id": None,
+            "labels_found": 0,
+            "user_removed": False,
+            "labels_deleted": 0,
+            "error": None,
+        }
+
+        # Step 1: Get all labels cteated by this user in this project
+        try:
+            labels_to_delete = self._get_user_labels(user_id)
+            result["labels_found"] = len(labels_to_delete)
+        except Exception as e:
+            logger.error("Failed to get labels: %s", str(e))
+            result["error"] = f"Failed to get labels: {str(e)}"
+            return result
+
+        # Step 2: Create T&S case with label information
+        try:
+            event_metadata = {
+                "project_id": self.project.uid,
+                "reason": reason,
+                "label_count": len(labels_to_delete),
+                "label_ids": [label.uid for label in labels_to_delete],
+            }
+            if custom_metadata:
+                event_metadata.update(custom_metadata)
+
+            ts_case_created = self._create_trust_safety_case(user_id, event_metadata)
+            if ts_case_created:
+                result["ts_case_id"] = "created"
+        except Exception as e:
+            logger.error("Failed to create T&S case: %s", str(e))
+            result["error"] = f"Failed to create T&S case: {str(e)}"
+            return result
+
+        # Step 3: Remove user from project (prevent creating more labels)
+        try:
+            self._remove_user_from_project(user_id)
+            result["user_removed"] = True
+        except Exception as e:
+            logger.error("Failed to remove user from project: %s", str(e))
+            result["error"] = f"Failed to remove user: {str(e)}"
+            return result
+
+        # Step 4: Delete all labels by this user
+        try:
+            result["labels_deleted"] = self._delete_user_labels(labels_to_delete)
+        except Exception as e:
+            logger.error("Failed to delete labels: %s", str(e))
+            result["error"] = f"Failed to delete labels: {str(e)}"
+            return result
+
+        return result
+
 
 class AlignerrWorkspace:
     def __init__(self, client: "Client"):