forgejo/routers/web/user/notification.go
zeripath 93ab90743d
Prevent loop if there is an error in GetNotificationCount (#19799)
If the context is cancelled `.NotificationUnreadCount` in a template can
cause an infinite loop with `ctx.ServerError()` being called, which
creates a template that then calls `.NotificationUnreadCount` calling
`GetNotificationCount()` with the cancelled context resulting in an
error that calls `ctx.ServerError`... and so on...

This PR simply stops calling `ctx.ServerError` in the error handler code
for `.NotificationUnreadCount` as we have already started rendering and
so it is too late to call `ctx.ServerError`. Additionally we skip
logging the error if it's a context cancelled error.

Fix #19793

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

Co-authored-by: techknowlogick <techknowlogick@gitea.io>
2022-05-25 08:51:53 +08:00

203 lines
5.2 KiB
Go

// Copyright 2019 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 user
import (
goctx "context"
"errors"
"fmt"
"net/http"
"net/url"
"strings"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/structs"
)
const (
tplNotification base.TplName = "user/notification/notification"
tplNotificationDiv base.TplName = "user/notification/notification_div"
)
// GetNotificationCount is the middleware that sets the notification count in the context
func GetNotificationCount(c *context.Context) {
if strings.HasPrefix(c.Req.URL.Path, "/api") {
return
}
if !c.IsSigned {
return
}
c.Data["NotificationUnreadCount"] = func() int64 {
count, err := models.GetNotificationCount(c, c.Doer, models.NotificationStatusUnread)
if err != nil {
if err != goctx.Canceled {
log.Error("Unable to GetNotificationCount for user:%-v: %v", c.Doer, err)
}
return -1
}
return count
}
}
// Notifications is the notifications page
func Notifications(c *context.Context) {
getNotifications(c)
if c.Written() {
return
}
if c.FormBool("div-only") {
c.Data["SequenceNumber"] = c.FormString("sequence-number")
c.HTML(http.StatusOK, tplNotificationDiv)
return
}
c.HTML(http.StatusOK, tplNotification)
}
func getNotifications(c *context.Context) {
var (
keyword = c.FormTrim("q")
status models.NotificationStatus
page = c.FormInt("page")
perPage = c.FormInt("perPage")
)
if page < 1 {
page = 1
}
if perPage < 1 {
perPage = 20
}
switch keyword {
case "read":
status = models.NotificationStatusRead
default:
status = models.NotificationStatusUnread
}
total, err := models.GetNotificationCount(c, c.Doer, status)
if err != nil {
c.ServerError("ErrGetNotificationCount", err)
return
}
// redirect to last page if request page is more than total pages
pager := context.NewPagination(int(total), perPage, page, 5)
if pager.Paginater.Current() < page {
c.Redirect(fmt.Sprintf("%s/notifications?q=%s&page=%d", setting.AppSubURL, url.QueryEscape(c.FormString("q")), pager.Paginater.Current()))
return
}
statuses := []models.NotificationStatus{status, models.NotificationStatusPinned}
notifications, err := models.NotificationsForUser(c, c.Doer, statuses, page, perPage)
if err != nil {
c.ServerError("ErrNotificationsForUser", err)
return
}
failCount := 0
repos, failures, err := notifications.LoadRepos()
if err != nil {
c.ServerError("LoadRepos", err)
return
}
notifications = notifications.Without(failures)
if err := repos.LoadAttributes(); err != nil {
c.ServerError("LoadAttributes", err)
return
}
failCount += len(failures)
failures, err = notifications.LoadIssues()
if err != nil {
c.ServerError("LoadIssues", err)
return
}
notifications = notifications.Without(failures)
failCount += len(failures)
failures, err = notifications.LoadComments()
if err != nil {
c.ServerError("LoadComments", err)
return
}
notifications = notifications.Without(failures)
failCount += len(failures)
if failCount > 0 {
c.Flash.Error(fmt.Sprintf("ERROR: %d notifications were removed due to missing parts - check the logs", failCount))
}
c.Data["Title"] = c.Tr("notifications")
c.Data["Keyword"] = keyword
c.Data["Status"] = status
c.Data["Notifications"] = notifications
pager.SetDefaultParams(c)
c.Data["Page"] = pager
}
// NotificationStatusPost is a route for changing the status of a notification
func NotificationStatusPost(c *context.Context) {
var (
notificationID = c.FormInt64("notification_id")
statusStr = c.FormString("status")
status models.NotificationStatus
)
switch statusStr {
case "read":
status = models.NotificationStatusRead
case "unread":
status = models.NotificationStatusUnread
case "pinned":
status = models.NotificationStatusPinned
default:
c.ServerError("InvalidNotificationStatus", errors.New("Invalid notification status"))
return
}
if _, err := models.SetNotificationStatus(notificationID, c.Doer, status); err != nil {
c.ServerError("SetNotificationStatus", err)
return
}
if !c.FormBool("noredirect") {
url := fmt.Sprintf("%s/notifications?page=%s", setting.AppSubURL, url.QueryEscape(c.FormString("page")))
c.Redirect(url, http.StatusSeeOther)
}
getNotifications(c)
if c.Written() {
return
}
c.Data["Link"] = setting.AppURL + "notifications"
c.Data["SequenceNumber"] = c.Req.PostFormValue("sequence-number")
c.HTML(http.StatusOK, tplNotificationDiv)
}
// NotificationPurgePost is a route for 'purging' the list of notifications - marking all unread as read
func NotificationPurgePost(c *context.Context) {
err := models.UpdateNotificationStatuses(c.Doer, models.NotificationStatusUnread, models.NotificationStatusRead)
if err != nil {
c.ServerError("ErrUpdateNotificationStatuses", err)
return
}
c.Redirect(setting.AppSubURL+"/notifications", http.StatusSeeOther)
}
// NewAvailable returns the notification counts
func NewAvailable(ctx *context.Context) {
ctx.JSON(http.StatusOK, structs.NotificationCount{New: models.CountUnread(ctx, ctx.Doer.ID)})
}