Files
vikunja/pkg/websocket/messages.go
kolaente 9255fe07a9 feat(websocket): add message types, connection hub, and connection handler
Add the core WebSocket infrastructure:

- Message type definitions for the wire protocol (subscribe, unsubscribe,
  auth, error, push events)
- In-memory connection hub that tracks per-user connections and routes
  messages to subscribed clients
- Connection wrapper with auth-after-connect flow: connections start
  unauthenticated, client sends JWT as first message, only then can
  subscribe to event topics

Includes auth timeout (30s), shared cancellation context for read/write
loops, hub map cleanup on last connection removal, and proper error
delivery before closing on auth failure.
2026-04-02 16:30:23 +00:00

57 lines
2.2 KiB
Go

// Vikunja is a to-do list application to facilitate your life.
// Copyright 2018-present Vikunja and contributors. All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package websocket
const (
// Client actions
ActionAuth = "auth"
ActionSubscribe = "subscribe"
ActionUnsubscribe = "unsubscribe"
// Server actions
ActionAuthSuccess = "auth.success"
ActionUnsubscribed = "unsubscribed"
)
// IncomingMessage represents a message from the client.
type IncomingMessage struct {
Action string `json:"action"`
// Token is set for auth action.
Token string `json:"token,omitempty"`
// Event is set for subscribe/unsubscribe actions.
Event string `json:"event,omitempty"`
}
// OutgoingMessage represents a message from the server to the client.
// Exactly one of Event, Error, or Action will be set.
type OutgoingMessage struct {
// Event identifies the event type. On push messages (e.g. "notification.created"),
// it carries the event name. On error responses for subscribe/unsubscribe,
// it identifies which event caused the error.
Event string `json:"event,omitempty"`
// Error is set for error responses (e.g. "forbidden").
Error string `json:"error,omitempty"`
// Action is set for server-initiated actions (e.g. "auth.success", "unsubscribed").
Action string `json:"action,omitempty"`
// Success is set for auth.success action.
Success bool `json:"success,omitempty"`
// Reason provides context for server-initiated actions.
Reason string `json:"reason,omitempty"`
// Data carries the event payload.
Data any `json:"data,omitempty"`
}