mirror of
https://github.com/go-gitea/gitea
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116 lines
2.3 KiB
Go
116 lines
2.3 KiB
Go
// Copyright 2022 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package websocket
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import (
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"time"
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"code.gitea.io/gitea/modules/context"
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"code.gitea.io/gitea/modules/eventsource"
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"code.gitea.io/gitea/modules/graceful"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/routers/web/auth"
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"github.com/olahol/melody"
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)
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func HandleConnect(s *melody.Session) {
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ctx := context.GetWebContext(s.Request)
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// Listen to connection close and un-register messageChan
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notify := ctx.Done()
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ctx.Resp.Flush()
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if !ctx.IsSigned {
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// Return unauthorized status event
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event := &eventsource.Event{
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Name: "close",
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Data: "unauthorized",
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}
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_, _ = event.WriteTo(ctx.Resp)
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ctx.Resp.Flush()
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return
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}
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shutdownCtx := graceful.GetManager().ShutdownContext()
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uid := ctx.Doer.ID
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messageChan := eventsource.GetManager().Register(uid)
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sessionData := &sessionData{
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unregister: func() {
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eventsource.GetManager().Unregister(uid, messageChan)
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// ensure the messageChan is closed
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for {
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_, ok := <-messageChan
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if !ok {
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break
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}
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}
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},
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}
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s.Set("data", sessionData)
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timer := time.NewTicker(30 * time.Second)
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loop:
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for {
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select {
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case <-notify:
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go sessionData.unregister()
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break loop
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case <-shutdownCtx.Done():
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go sessionData.unregister()
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break loop
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case event, ok := <-messageChan:
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if !ok {
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break loop
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}
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// Handle logout
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if event.Name == "logout" {
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if ctx.Session.ID() == event.Data {
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_, _ = (&eventsource.Event{
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Name: "logout",
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Data: "here",
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}).WriteTo(ctx.Resp)
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ctx.Resp.Flush()
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go sessionData.unregister()
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auth.HandleSignOut(ctx)
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break loop
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}
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// Replace the event - we don't want to expose the session ID to the user
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event = &eventsource.Event{
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Name: "logout",
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Data: "elsewhere",
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}
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}
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_, err := event.WriteTo(ctx.Resp)
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if err != nil {
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log.Error("Unable to write to EventStream for user %s: %v", ctx.Doer.Name, err)
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go sessionData.unregister()
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break loop
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}
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ctx.Resp.Flush()
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}
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}
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timer.Stop()
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}
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func HandleMessage(s *melody.Session, msg []byte) {
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// TODO: Handle incoming messages
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}
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func HandleDisconnect(s *melody.Session) {
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data, err := getSessionData(s)
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if err != nil {
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log.Error("Unable to get session data: %v", err)
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return
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}
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data.unregister()
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}
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