diff options
Diffstat (limited to 'api/email_batching.go')
-rw-r--r-- | api/email_batching.go | 252 |
1 files changed, 0 insertions, 252 deletions
diff --git a/api/email_batching.go b/api/email_batching.go deleted file mode 100644 index 608d839da..000000000 --- a/api/email_batching.go +++ /dev/null @@ -1,252 +0,0 @@ -// Copyright (c) 2016 Mattermost, Inc. All Rights Reserved. -// See License.txt for license information. - -package api - -import ( - "database/sql" - "fmt" - "html/template" - "strconv" - "time" - - "github.com/mattermost/platform/model" - "github.com/mattermost/platform/utils" - - l4g "github.com/alecthomas/log4go" - "github.com/nicksnyder/go-i18n/i18n" -) - -const ( - EMAIL_BATCHING_TASK_NAME = "Email Batching" -) - -var emailBatchingJob *EmailBatchingJob - -func InitEmailBatching() { - if *utils.Cfg.EmailSettings.EnableEmailBatching { - if emailBatchingJob == nil { - emailBatchingJob = MakeEmailBatchingJob(*utils.Cfg.EmailSettings.EmailBatchingBufferSize) - } - - // note that we don't support changing EmailBatchingBufferSize without restarting the server - - emailBatchingJob.Start() - } -} - -func AddNotificationEmailToBatch(user *model.User, post *model.Post, team *model.Team) *model.AppError { - if !*utils.Cfg.EmailSettings.EnableEmailBatching { - return model.NewLocAppError("AddNotificationEmailToBatch", "api.email_batching.add_notification_email_to_batch.disabled.app_error", nil, "") - } - - if !emailBatchingJob.Add(user, post, team) { - l4g.Error(utils.T("api.email_batching.add_notification_email_to_batch.channel_full.app_error")) - return model.NewLocAppError("AddNotificationEmailToBatch", "api.email_batching.add_notification_email_to_batch.channel_full.app_error", nil, "") - } - - return nil -} - -type batchedNotification struct { - userId string - post *model.Post - teamName string -} - -type EmailBatchingJob struct { - newNotifications chan *batchedNotification - pendingNotifications map[string][]*batchedNotification -} - -func MakeEmailBatchingJob(bufferSize int) *EmailBatchingJob { - return &EmailBatchingJob{ - newNotifications: make(chan *batchedNotification, bufferSize), - pendingNotifications: make(map[string][]*batchedNotification), - } -} - -func (job *EmailBatchingJob) Start() { - if task := model.GetTaskByName(EMAIL_BATCHING_TASK_NAME); task != nil { - task.Cancel() - } - - l4g.Debug(utils.T("api.email_batching.start.starting"), *utils.Cfg.EmailSettings.EmailBatchingInterval) - model.CreateRecurringTask(EMAIL_BATCHING_TASK_NAME, job.CheckPendingEmails, time.Duration(*utils.Cfg.EmailSettings.EmailBatchingInterval)*time.Second) -} - -func (job *EmailBatchingJob) Add(user *model.User, post *model.Post, team *model.Team) bool { - notification := &batchedNotification{ - userId: user.Id, - post: post, - teamName: team.Name, - } - - select { - case job.newNotifications <- notification: - return true - default: - // return false if we couldn't queue the email notification so that we can send an immediate email - return false - } -} - -func (job *EmailBatchingJob) CheckPendingEmails() { - job.handleNewNotifications() - - // it's a bit weird to pass the send email function through here, but it makes it so that we can test - // without actually sending emails - job.checkPendingNotifications(time.Now(), sendBatchedEmailNotification) - - l4g.Debug(utils.T("api.email_batching.check_pending_emails.finished_running"), len(job.pendingNotifications)) -} - -func (job *EmailBatchingJob) handleNewNotifications() { - receiving := true - - // read in new notifications to send - for receiving { - select { - case notification := <-job.newNotifications: - userId := notification.userId - - if _, ok := job.pendingNotifications[userId]; !ok { - job.pendingNotifications[userId] = []*batchedNotification{notification} - } else { - job.pendingNotifications[userId] = append(job.pendingNotifications[userId], notification) - } - default: - receiving = false - } - } -} - -func (job *EmailBatchingJob) checkPendingNotifications(now time.Time, handler func(string, []*batchedNotification)) { - // look for users who've acted since pending posts were received - for userId, notifications := range job.pendingNotifications { - schan := Srv.Store.Status().Get(userId) - pchan := Srv.Store.Preference().Get(userId, model.PREFERENCE_CATEGORY_NOTIFICATIONS, model.PREFERENCE_NAME_EMAIL_INTERVAL) - batchStartTime := notifications[0].post.CreateAt - - // check if the user has been active and would've seen any new posts - if result := <-schan; result.Err != nil { - l4g.Error(utils.T("api.email_batching.check_pending_emails.status.app_error"), result.Err) - delete(job.pendingNotifications, userId) - continue - } else if status := result.Data.(*model.Status); status.LastActivityAt >= batchStartTime { - delete(job.pendingNotifications, userId) - continue - } - - // get how long we need to wait to send notifications to the user - var interval int64 - if result := <-pchan; result.Err != nil { - // default to 30 seconds to match the send "immediate" setting - interval, _ = strconv.ParseInt(model.PREFERENCE_DEFAULT_EMAIL_INTERVAL, 10, 64) - } else { - preference := result.Data.(model.Preference) - - if value, err := strconv.ParseInt(preference.Value, 10, 64); err != nil { - interval, _ = strconv.ParseInt(model.PREFERENCE_DEFAULT_EMAIL_INTERVAL, 10, 64) - } else { - interval = value - } - } - - // send the email notification if it's been long enough - if now.Sub(time.Unix(batchStartTime/1000, 0)) > time.Duration(interval)*time.Second { - go handler(userId, notifications) - delete(job.pendingNotifications, userId) - } - } -} - -func sendBatchedEmailNotification(userId string, notifications []*batchedNotification) { - uchan := Srv.Store.User().Get(userId) - pchan := Srv.Store.Preference().Get(userId, model.PREFERENCE_CATEGORY_DISPLAY_SETTINGS, model.PREFERENCE_NAME_DISPLAY_NAME_FORMAT) - - var user *model.User - if result := <-uchan; result.Err != nil { - l4g.Warn("api.email_batching.send_batched_email_notification.user.app_error") - return - } else { - user = result.Data.(*model.User) - } - - translateFunc := utils.GetUserTranslations(user.Locale) - - var displayNameFormat string - if result := <-pchan; result.Err != nil && result.Err.DetailedError != sql.ErrNoRows.Error() { - l4g.Warn("api.email_batching.send_batched_email_notification.preferences.app_error") - return - } else if result.Err != nil { - // no display name format saved, so fall back to default - displayNameFormat = model.PREFERENCE_DEFAULT_DISPLAY_NAME_FORMAT - } else { - displayNameFormat = result.Data.(model.Preference).Value - } - - var contents string - for _, notification := range notifications { - template := utils.NewHTMLTemplate("post_batched_post", user.Locale) - - contents += renderBatchedPost(template, notification.post, notification.teamName, displayNameFormat, translateFunc) - } - - tm := time.Unix(notifications[0].post.CreateAt/1000, 0) - - subject := translateFunc("api.email_batching.send_batched_email_notification.subject", len(notifications), map[string]interface{}{ - "SiteName": utils.Cfg.TeamSettings.SiteName, - "Year": tm.Year(), - "Month": translateFunc(tm.Month().String()), - "Day": tm.Day(), - }) - - body := utils.NewHTMLTemplate("post_batched_body", user.Locale) - body.Props["SiteURL"] = *utils.Cfg.ServiceSettings.SiteURL - body.Props["Posts"] = template.HTML(contents) - body.Props["BodyText"] = translateFunc("api.email_batching.send_batched_email_notification.body_text", len(notifications)) - - if err := utils.SendMail(user.Email, subject, body.Render()); err != nil { - l4g.Warn(utils.T("api.email_batchings.send_batched_email_notification.send.app_error"), user.Email, err) - } -} - -func renderBatchedPost(template *utils.HTMLTemplate, post *model.Post, teamName string, displayNameFormat string, translateFunc i18n.TranslateFunc) string { - schan := Srv.Store.User().Get(post.UserId) - cchan := Srv.Store.Channel().Get(post.ChannelId, true) - - template.Props["Button"] = translateFunc("api.email_batching.render_batched_post.go_to_post") - template.Props["PostMessage"] = getMessageForNotification(post, translateFunc) - template.Props["PostLink"] = *utils.Cfg.ServiceSettings.SiteURL + "/" + teamName + "/pl/" + post.Id - - tm := time.Unix(post.CreateAt/1000, 0) - timezone, _ := tm.Zone() - - template.Props["Date"] = translateFunc("api.email_batching.render_batched_post.date", map[string]interface{}{ - "Year": tm.Year(), - "Month": translateFunc(tm.Month().String()), - "Day": tm.Day(), - "Hour": tm.Hour(), - "Minute": fmt.Sprintf("%02d", tm.Minute()), - "Timezone": timezone, - }) - - if result := <-schan; result.Err != nil { - l4g.Warn(utils.T("api.email_batching.render_batched_post.sender.app_error")) - return "" - } else { - template.Props["SenderName"] = result.Data.(*model.User).GetDisplayNameForPreference(displayNameFormat) - } - - if result := <-cchan; result.Err != nil { - l4g.Warn(utils.T("api.email_batching.render_batched_post.channel.app_error")) - return "" - } else if channel := result.Data.(*model.Channel); channel.Type == model.CHANNEL_DIRECT { - template.Props["ChannelName"] = translateFunc("api.email_batching.render_batched_post.direct_message") - } else { - template.Props["ChannelName"] = channel.DisplayName - } - - return template.Render() -} |