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notification_push.go
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notification_push.go
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// Copyright (c) 2016-present Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
package app
import (
"hash/fnv"
"net/http"
"strings"
"github.com/pkg/errors"
"github.com/mattermost/go-i18n/i18n"
"github.com/mattermost/mattermost-server/v5/mlog"
"github.com/mattermost/mattermost-server/v5/model"
"github.com/mattermost/mattermost-server/v5/utils"
)
type NotificationType string
const NOTIFICATION_TYPE_CLEAR NotificationType = "clear"
const NOTIFICATION_TYPE_MESSAGE NotificationType = "message"
const NOTIFICATION_TYPE_UPDATE_BADGE NotificationType = "update_badge"
const PUSH_NOTIFICATION_HUB_WORKERS = 1000
const PUSH_NOTIFICATIONS_HUB_BUFFER_PER_WORKER = 50
type PushNotificationsHub struct {
Channels []chan PushNotification
}
type PushNotification struct {
notificationType NotificationType
currentSessionId string
userId string
channelId string
post *model.Post
user *model.User
channel *model.Channel
senderName string
channelName string
explicitMention bool
channelWideMention bool
replyToThreadType string
}
func (hub *PushNotificationsHub) GetGoChannelFromUserId(userId string) chan PushNotification {
h := fnv.New32a()
h.Write([]byte(userId))
chanIdx := h.Sum32() % PUSH_NOTIFICATION_HUB_WORKERS
return hub.Channels[chanIdx]
}
func (a *App) sendPushNotificationSync(post *model.Post, user *model.User, channel *model.Channel, channelName string, senderName string,
explicitMention bool, channelWideMention bool, replyToThreadType string) *model.AppError {
cfg := a.Config()
msg, err := a.BuildPushNotificationMessage(
*cfg.EmailSettings.PushNotificationContents,
post,
user,
channel,
channelName,
senderName,
explicitMention,
channelWideMention,
replyToThreadType,
)
if err != nil {
return err
}
return a.sendPushNotificationToAllSessions(msg, user.Id, "")
}
func (a *App) sendPushNotificationToAllSessions(msg *model.PushNotification, userId string, skipSessionId string) *model.AppError {
sessions, err := a.getMobileAppSessions(userId)
if err != nil {
return err
}
for _, session := range sessions {
// Don't send notifications to this session if it's expired or we want to skip it
if session.IsExpired() || (skipSessionId != "" && skipSessionId == session.Id) {
continue
}
tmpMessage := model.PushNotificationFromJson(strings.NewReader(msg.ToJson()))
tmpMessage.SetDeviceIdAndPlatform(session.DeviceId)
tmpMessage.AckId = model.NewId()
err := a.sendToPushProxy(*tmpMessage, session)
if err != nil {
a.NotificationsLog.Error("Notification error",
mlog.String("ackId", tmpMessage.AckId),
mlog.String("type", tmpMessage.Type),
mlog.String("userId", session.UserId),
mlog.String("postId", tmpMessage.PostId),
mlog.String("channelId", tmpMessage.ChannelId),
mlog.String("deviceId", tmpMessage.DeviceId),
mlog.String("status", err.Error()),
)
continue
}
a.NotificationsLog.Info("Notification sent",
mlog.String("ackId", tmpMessage.AckId),
mlog.String("type", tmpMessage.Type),
mlog.String("userId", session.UserId),
mlog.String("postId", tmpMessage.PostId),
mlog.String("channelId", tmpMessage.ChannelId),
mlog.String("deviceId", tmpMessage.DeviceId),
mlog.String("status", model.PUSH_SEND_SUCCESS),
)
if a.Metrics != nil {
a.Metrics.IncrementPostSentPush()
}
}
return nil
}
func (a *App) sendPushNotification(notification *PostNotification, user *model.User, explicitMention, channelWideMention bool, replyToThreadType string) {
cfg := a.Config()
channel := notification.Channel
post := notification.Post
nameFormat := a.GetNotificationNameFormat(user)
channelName := notification.GetChannelName(nameFormat, user.Id)
senderName := notification.GetSenderName(nameFormat, *cfg.ServiceSettings.EnablePostUsernameOverride)
c := a.Srv.PushNotificationsHub.GetGoChannelFromUserId(user.Id)
c <- PushNotification{
notificationType: NOTIFICATION_TYPE_MESSAGE,
post: post,
user: user,
channel: channel,
senderName: senderName,
channelName: channelName,
explicitMention: explicitMention,
channelWideMention: channelWideMention,
replyToThreadType: replyToThreadType,
}
}
func (a *App) getPushNotificationMessage(contentsConfig, postMessage string, explicitMention, channelWideMention, hasFiles bool,
senderName, channelName, channelType, replyToThreadType string, userLocale i18n.TranslateFunc) string {
// If the post only has images then push an appropriate message
if len(postMessage) == 0 && hasFiles {
if channelType == model.CHANNEL_DIRECT {
return strings.Trim(userLocale("api.post.send_notifications_and_forget.push_image_only"), " ")
}
return senderName + userLocale("api.post.send_notifications_and_forget.push_image_only")
}
if contentsConfig == model.FULL_NOTIFICATION {
if channelType == model.CHANNEL_DIRECT {
return model.ClearMentionTags(postMessage)
}
return senderName + ": " + model.ClearMentionTags(postMessage)
}
if channelType == model.CHANNEL_DIRECT {
return userLocale("api.post.send_notifications_and_forget.push_message")
}
if channelWideMention {
return senderName + userLocale("api.post.send_notification_and_forget.push_channel_mention")
}
if explicitMention {
return senderName + userLocale("api.post.send_notifications_and_forget.push_explicit_mention")
}
if replyToThreadType == model.COMMENTS_NOTIFY_ROOT {
return senderName + userLocale("api.post.send_notification_and_forget.push_comment_on_post")
}
if replyToThreadType == model.COMMENTS_NOTIFY_ANY {
return senderName + userLocale("api.post.send_notification_and_forget.push_comment_on_thread")
}
return senderName + userLocale("api.post.send_notifications_and_forget.push_general_message")
}
func (a *App) ClearPushNotificationSync(currentSessionId, userId, channelId string) *model.AppError {
msg := &model.PushNotification{
Type: model.PUSH_TYPE_CLEAR,
Version: model.PUSH_MESSAGE_V2,
ChannelId: channelId,
ContentAvailable: 1,
}
unreadCount, err := a.Srv.Store.User().GetUnreadCount(userId)
if err != nil {
return err
}
msg.Badge = int(unreadCount)
return a.sendPushNotificationToAllSessions(msg, userId, currentSessionId)
}
func (a *App) ClearPushNotification(currentSessionId, userId, channelId string) {
channel := a.Srv.PushNotificationsHub.GetGoChannelFromUserId(userId)
channel <- PushNotification{
notificationType: NOTIFICATION_TYPE_CLEAR,
currentSessionId: currentSessionId,
userId: userId,
channelId: channelId,
}
}
func (a *App) UpdateMobileAppBadgeSync(userId string) *model.AppError {
msg := &model.PushNotification{
Type: model.PUSH_TYPE_UPDATE_BADGE,
Version: model.PUSH_MESSAGE_V2,
Sound: "none",
ContentAvailable: 1,
}
unreadCount, err := a.Srv.Store.User().GetUnreadCount(userId)
if err != nil {
return err
}
msg.Badge = int(unreadCount)
return a.sendPushNotificationToAllSessions(msg, userId, "")
}
func (a *App) UpdateMobileAppBadge(userId string) {
channel := a.Srv.PushNotificationsHub.GetGoChannelFromUserId(userId)
channel <- PushNotification{
notificationType: NOTIFICATION_TYPE_UPDATE_BADGE,
userId: userId,
}
}
func (a *App) CreatePushNotificationsHub() {
hub := PushNotificationsHub{
Channels: []chan PushNotification{},
}
for x := 0; x < PUSH_NOTIFICATION_HUB_WORKERS; x++ {
hub.Channels = append(hub.Channels, make(chan PushNotification, PUSH_NOTIFICATIONS_HUB_BUFFER_PER_WORKER))
}
a.Srv.PushNotificationsHub = hub
}
func (a *App) pushNotificationWorker(notifications chan PushNotification) {
for notification := range notifications {
var err *model.AppError
switch notification.notificationType {
case NOTIFICATION_TYPE_CLEAR:
err = a.ClearPushNotificationSync(notification.currentSessionId, notification.userId, notification.channelId)
case NOTIFICATION_TYPE_MESSAGE:
err = a.sendPushNotificationSync(
notification.post,
notification.user,
notification.channel,
notification.channelName,
notification.senderName,
notification.explicitMention,
notification.channelWideMention,
notification.replyToThreadType,
)
case NOTIFICATION_TYPE_UPDATE_BADGE:
err = a.UpdateMobileAppBadgeSync(notification.userId)
default:
mlog.Error("Invalid notification type", mlog.String("notification_type", string(notification.notificationType)))
}
if err != nil {
mlog.Error("Unable to send push notification", mlog.String("notification_type", string(notification.notificationType)), mlog.Err(err))
}
}
}
func (a *App) StartPushNotificationsHubWorkers() {
for x := 0; x < PUSH_NOTIFICATION_HUB_WORKERS; x++ {
channel := a.Srv.PushNotificationsHub.Channels[x]
a.Srv.Go(func() { a.pushNotificationWorker(channel) })
}
}
func (a *App) StopPushNotificationsHubWorkers() {
for _, channel := range a.Srv.PushNotificationsHub.Channels {
close(channel)
}
}
func (a *App) sendToPushProxy(msg model.PushNotification, session *model.Session) error {
msg.ServerId = a.DiagnosticId()
a.NotificationsLog.Info("Notification will be sent",
mlog.String("ackId", msg.AckId),
mlog.String("type", msg.Type),
mlog.String("userId", session.UserId),
mlog.String("postId", msg.PostId),
mlog.String("status", model.PUSH_SEND_PREPARE),
)
request, err := http.NewRequest("POST", strings.TrimRight(*a.Config().EmailSettings.PushNotificationServer, "/")+model.API_URL_SUFFIX_V1+"/send_push", strings.NewReader(msg.ToJson()))
if err != nil {
return err
}
resp, err := a.HTTPService.MakeClient(true).Do(request)
if err != nil {
return err
}
defer resp.Body.Close()
pushResponse := model.PushResponseFromJson(resp.Body)
if pushResponse[model.PUSH_STATUS] == model.PUSH_STATUS_REMOVE {
a.AttachDeviceId(session.Id, "", session.ExpiresAt)
a.ClearSessionCacheForUser(session.UserId)
return errors.New("Device was reported as removed")
}
if pushResponse[model.PUSH_STATUS] == model.PUSH_STATUS_FAIL {
return errors.New(pushResponse[model.PUSH_STATUS_ERROR_MSG])
}
return nil
}
func (a *App) SendAckToPushProxy(ack *model.PushNotificationAck) error {
if ack == nil {
return nil
}
a.NotificationsLog.Info("Notification received",
mlog.String("ackId", ack.Id),
mlog.String("type", ack.NotificationType),
mlog.String("deviceType", ack.ClientPlatform),
mlog.Int64("receivedAt", ack.ClientReceivedAt),
mlog.String("status", model.PUSH_RECEIVED),
)
request, err := http.NewRequest(
"POST",
strings.TrimRight(*a.Config().EmailSettings.PushNotificationServer, "/")+model.API_URL_SUFFIX_V1+"/ack",
strings.NewReader(ack.ToJson()),
)
if err != nil {
return err
}
resp, err := a.HTTPService.MakeClient(true).Do(request)
if err != nil {
return err
}
resp.Body.Close()
return nil
}
func (a *App) getMobileAppSessions(userId string) ([]*model.Session, *model.AppError) {
return a.Srv.Store.Session().GetSessionsWithActiveDeviceIds(userId)
}
func ShouldSendPushNotification(user *model.User, channelNotifyProps model.StringMap, wasMentioned bool, status *model.Status, post *model.Post) bool {
return DoesNotifyPropsAllowPushNotification(user, channelNotifyProps, post, wasMentioned) &&
DoesStatusAllowPushNotification(user.NotifyProps, status, post.ChannelId)
}
func DoesNotifyPropsAllowPushNotification(user *model.User, channelNotifyProps model.StringMap, post *model.Post, wasMentioned bool) bool {
userNotifyProps := user.NotifyProps
userNotify := userNotifyProps[model.PUSH_NOTIFY_PROP]
channelNotify, ok := channelNotifyProps[model.PUSH_NOTIFY_PROP]
if !ok || channelNotify == "" {
channelNotify = model.CHANNEL_NOTIFY_DEFAULT
}
// If the channel is muted do not send push notifications
if channelNotifyProps[model.MARK_UNREAD_NOTIFY_PROP] == model.CHANNEL_MARK_UNREAD_MENTION {
return false
}
if post.IsSystemMessage() {
return false
}
if channelNotify == model.USER_NOTIFY_NONE {
return false
}
if channelNotify == model.CHANNEL_NOTIFY_MENTION && !wasMentioned {
return false
}
if userNotify == model.USER_NOTIFY_MENTION && channelNotify == model.CHANNEL_NOTIFY_DEFAULT && !wasMentioned {
return false
}
if (userNotify == model.USER_NOTIFY_ALL || channelNotify == model.CHANNEL_NOTIFY_ALL) &&
(post.UserId != user.Id || post.GetProp("from_webhook") == "true") {
return true
}
if userNotify == model.USER_NOTIFY_NONE &&
channelNotify == model.CHANNEL_NOTIFY_DEFAULT {
return false
}
return true
}
func DoesStatusAllowPushNotification(userNotifyProps model.StringMap, status *model.Status, channelId string) bool {
// If User status is DND or OOO return false right away
if status.Status == model.STATUS_DND || status.Status == model.STATUS_OUT_OF_OFFICE {
return false
}
pushStatus, ok := userNotifyProps[model.PUSH_STATUS_NOTIFY_PROP]
if (pushStatus == model.STATUS_ONLINE || !ok) && (status.ActiveChannel != channelId || model.GetMillis()-status.LastActivityAt > model.STATUS_CHANNEL_TIMEOUT) {
return true
}
if pushStatus == model.STATUS_AWAY && (status.Status == model.STATUS_AWAY || status.Status == model.STATUS_OFFLINE) {
return true
}
if pushStatus == model.STATUS_OFFLINE && status.Status == model.STATUS_OFFLINE {
return true
}
return false
}
func (a *App) BuildPushNotificationMessage(contentsConfig string, post *model.Post, user *model.User, channel *model.Channel, channelName string, senderName string,
explicitMention bool, channelWideMention bool, replyToThreadType string) (*model.PushNotification, *model.AppError) {
var msg *model.PushNotification
notificationInterface := a.Srv.Notification
if (notificationInterface == nil || notificationInterface.CheckLicense() != nil) && contentsConfig == model.ID_LOADED_NOTIFICATION {
contentsConfig = model.GENERIC_NOTIFICATION
}
if contentsConfig == model.ID_LOADED_NOTIFICATION {
msg = a.buildIdLoadedPushNotificationMessage(post, user)
} else {
msg = a.buildFullPushNotificationMessage(contentsConfig, post, user, channel, channelName, senderName, explicitMention, channelWideMention, replyToThreadType)
}
unreadCount, err := a.Srv.Store.User().GetUnreadCount(user.Id)
if err != nil {
return nil, err
}
msg.Badge = int(unreadCount)
return msg, nil
}
func (a *App) buildIdLoadedPushNotificationMessage(post *model.Post, user *model.User) *model.PushNotification {
userLocale := utils.GetUserTranslations(user.Locale)
msg := &model.PushNotification{
PostId: post.Id,
ChannelId: post.ChannelId,
Category: model.CATEGORY_CAN_REPLY,
Version: model.PUSH_MESSAGE_V2,
Type: model.PUSH_TYPE_MESSAGE,
IsIdLoaded: true,
SenderId: user.Id,
Message: userLocale("api.push_notification.id_loaded.default_message"),
}
return msg
}
func (a *App) buildFullPushNotificationMessage(contentsConfig string, post *model.Post, user *model.User, channel *model.Channel, channelName string, senderName string,
explicitMention bool, channelWideMention bool, replyToThreadType string) *model.PushNotification {
msg := &model.PushNotification{
Category: model.CATEGORY_CAN_REPLY,
Version: model.PUSH_MESSAGE_V2,
Type: model.PUSH_TYPE_MESSAGE,
TeamId: channel.TeamId,
ChannelId: channel.Id,
PostId: post.Id,
RootId: post.RootId,
SenderId: post.UserId,
IsIdLoaded: false,
}
cfg := a.Config()
if contentsConfig != model.GENERIC_NO_CHANNEL_NOTIFICATION || channel.Type == model.CHANNEL_DIRECT {
msg.ChannelName = channelName
}
msg.SenderName = senderName
if ou, ok := post.GetProp("override_username").(string); ok && *cfg.ServiceSettings.EnablePostUsernameOverride {
msg.OverrideUsername = ou
msg.SenderName = ou
}
if oi, ok := post.GetProp("override_icon_url").(string); ok && *cfg.ServiceSettings.EnablePostIconOverride {
msg.OverrideIconUrl = oi
}
if fw, ok := post.GetProp("from_webhook").(string); ok {
msg.FromWebhook = fw
}
userLocale := utils.GetUserTranslations(user.Locale)
hasFiles := post.FileIds != nil && len(post.FileIds) > 0
msg.Message = a.getPushNotificationMessage(contentsConfig, post.Message, explicitMention, channelWideMention, hasFiles, msg.SenderName, channelName, channel.Type, replyToThreadType, userLocale)
return msg
}