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gitea/modules/eventsource/manager_run.go
zeripath e46dbec294
Move EventSource to SharedWorker (#12095) (#12130)
* Move EventSource to SharedWorker (#12095)

Backport #12095

Move EventSource to use a SharedWorker. This prevents issues with HTTP/1.1
open browser connections from preventing gitea from opening multiple tabs.

Also allow setting EVENT_SOURCE_UPDATE_TIME to disable EventSource updating

Fix #11978

Signed-off-by: Andrew Thornton <art27@cantab.net>

Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>

* Bugfix for shared event source

For some reason our eslint configuration is not working correctly
and a bug has become apparent when trying to backport this to 1.12.

Signed-off-by: Andrew Thornton <art27@cantab.net>

* Re-fix #12095 again

Unfortunately some of the suggested changes to #12095 introduced
bugs which due to caching behaviour of sharedworkers were not caught
on simple tests.

These are as follows:

* Changing from simple for loop to use includes here:

```js
  register(port) {
    if (!this.clients.includes(port)) return;

    this.clients.push(port);

    port.postMessage({
      type: 'status',
      message: `registered to ${this.url}`,
    });
  }
```

The additional `!` prevents any clients from being added and should
read:

```js
    if (this.clients.includes(port)) return;
```

* Dropping the use of jQuery `$(...)` selection and using DOM
`querySelector` here:

```js
async function receiveUpdateCount(event) {
  try {
    const data = JSON.parse(event.data);

    const notificationCount = document.querySelector('.notification_count');
    if (data.Count > 0) {
      notificationCount.classList.remove('hidden');
    } else {
      notificationCount.classList.add('hidden');
    }

    notificationCount.text() = `${data.Count}`;
    await updateNotificationTable();
  } catch (error) {
    console.error(error, event);
  }
}
```

Requires that `notificationCount.text()` be changed to use `textContent`
instead.

Signed-off-by: Andrew Thornton <art27@cantab.net>

Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
2020-07-05 01:08:03 +03:00

54 lines
1.2 KiB
Go

// Copyright 2020 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package eventsource
import (
"context"
"time"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/graceful"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/timeutil"
)
// Init starts this eventsource
func (m *Manager) Init() {
if setting.UI.Notification.EventSourceUpdateTime <= 0 {
return
}
go graceful.GetManager().RunWithShutdownContext(m.Run)
}
// Run runs the manager within a provided context
func (m *Manager) Run(ctx context.Context) {
then := timeutil.TimeStampNow().Add(-2)
timer := time.NewTicker(setting.UI.Notification.EventSourceUpdateTime)
loop:
for {
select {
case <-ctx.Done():
timer.Stop()
break loop
case <-timer.C:
now := timeutil.TimeStampNow().Add(-2)
uidCounts, err := models.GetUIDsAndNotificationCounts(then, now)
if err != nil {
log.Error("Unable to get UIDcounts: %v", err)
}
for _, uidCount := range uidCounts {
m.SendMessage(uidCount.UserID, &Event{
Name: "notification-count",
Data: uidCount,
})
}
then = now
}
}
m.UnregisterAll()
}