feat(api): filter tasks based on service UAC (#1207)

api/http/proxy/tasks.go

@@ -0,0 +1,36 @@
+package proxy
+
+import (
+	"net/http"
+
+	"github.com/portainer/portainer"
+)
+
+const (
+	// ErrDockerTaskServiceIdentifierNotFound defines an error raised when Portainer is unable to find the service identifier associated to a task
+	ErrDockerTaskServiceIdentifierNotFound = portainer.Error("Docker task service identifier not found")
+	taskServiceIdentifier                  = "ServiceID"
+)
+
+// taskListOperation extracts the response as a JSON object, loop through the tasks array
+// and filter the tasks based on resource controls before rewriting the response
+func taskListOperation(request *http.Request, response *http.Response, executor *operationExecutor) error {
+	var err error
+
+	// TaskList response is a JSON array
+	// https://docs.docker.com/engine/api/v1.28/#operation/TaskList
+	responseArray, err := getResponseAsJSONArray(response)
+	if err != nil {
+		return err
+	}
+
+	if !executor.operationContext.isAdmin {
+		responseArray, err = filterTaskList(responseArray, executor.operationContext.resourceControls,
+			executor.operationContext.userID, executor.operationContext.userTeamIDs)
+		if err != nil {
+			return err
+		}
+	}
+
+	return rewriteResponse(response, responseArray, http.StatusOK)
+}