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handler.go
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handler.go
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package message_handler
import (
messages2 "github.com/glide-im/glide/im_service/messages"
"github.com/glide-im/glide/pkg/auth"
"github.com/glide-im/glide/pkg/gate"
"github.com/glide-im/glide/pkg/logger"
"github.com/glide-im/glide/pkg/messages"
"github.com/glide-im/glide/pkg/messaging"
"github.com/glide-im/glide/pkg/store"
"github.com/glide-im/glide/pkg/subscription"
)
var _ messaging.Messaging = (*MessageHandler)(nil)
type Options struct {
// MessageStore chat message store
MessageStore store.MessageStore
// OfflineHandleFn client offline, handle message
OfflineHandleFn func(h *MessageHandler, ci *gate.Info, pushMessage *messages.GlideMessage)
// Auth used for client auth action handler messages.ActionApiAuth
Auth auth.Interface
// DontInitDefaultHandler true will not init default action handler, MessageHandler.InitDefaultHandler
DontInitDefaultHandler bool
// NotifyOnErr true express notify client on server error.
NotifyOnErr bool
}
// MessageHandler .
type MessageHandler struct {
def *messaging.MessageInterfaceImpl
store store.MessageStore
auth auth.Interface
offlineHandleFn func(h *MessageHandler, ci *gate.Info, m *messages.GlideMessage)
}
func NewHandlerWithOptions(opts *Options) (*MessageHandler, error) {
impl, err := messaging.NewDefaultImpl(&messaging.Options{
NotifyServerError: true,
MaxMessageConcurrency: 10_0000,
})
if err != nil {
return nil, err
}
impl.SetNotifyErrorOnServer(opts.NotifyOnErr)
ret := &MessageHandler{
def: impl,
store: opts.MessageStore,
auth: opts.Auth,
offlineHandleFn: opts.OfflineHandleFn,
}
if !opts.DontInitDefaultHandler {
ret.InitDefaultHandler(nil)
}
return ret, nil
}
// InitDefaultHandler
// 初始化 message.Action 对应的默认 Handler, 部分类型的 Action 才有默认 Handler, 若要修改特定 Action 的默认 Handler 则可以在
// callback 回调中返回你需要的即可, callback 参数 fn 既是该 action 对的默认 Handler.
func (d *MessageHandler) InitDefaultHandler(callback func(action messages.Action, fn messaging.HandlerFunc) messaging.HandlerFunc) {
m := map[messages.Action]messaging.HandlerFunc{
messages2.ActionChatMessage: d.handleChatMessage,
messages2.ActionGroupMessage: d.handleGroupMsg,
messages2.ActionAckRequest: d.handleAckRequest,
messages2.ActionAckGroupMsg: d.handleAckGroupMsgRequest,
messages2.ActionApiAuth: d.handleAuth,
messages2.AckOffline: d.handleAckOffline,
messages2.ActionHeartbeat: d.handleHeartbeat,
}
for action, handlerFunc := range m {
if callback != nil {
handlerFunc = callback(action, handlerFunc)
}
d.AddHandler(messaging.NewActionHandler(action, handlerFunc))
}
}
func (d *MessageHandler) AddHandler(i messaging.MessageHandler) {
d.def.AddHandler(i)
}
func (d *MessageHandler) SetAuthorize(a auth.Interface) {
d.auth = a
}
func (d *MessageHandler) Handle(cInfo *gate.Info, msg *messages.GlideMessage) error {
return d.def.Handle(cInfo, msg)
}
func (d *MessageHandler) SetGate(g gate.Gateway) {
d.def.SetGate(g)
}
func (d *MessageHandler) SetSubscription(s subscription.Interface) {
d.def.SetSubscription(s)
}
// SetOfflineMessageHandler called while client is offline
func (d *MessageHandler) SetOfflineMessageHandler(fn func(h *MessageHandler, ci *gate.Info, m *messages.GlideMessage)) {
d.offlineHandleFn = fn
}
func (d *MessageHandler) dispatchGroupMessage(gid int64, msg *messages.ChatMessage) error {
return d.def.GetGroupInterface().PublishMessage("", nil)
}
func (d *MessageHandler) enqueueMessage(id gate.ID, message *messages.GlideMessage) {
err := d.def.GetClientInterface().EnqueueMessage(id, message)
if err != nil {
logger.E("%v", err)
}
}
func (d *MessageHandler) unmarshalData(c *gate.Info, msg *messages.GlideMessage, to interface{}) bool {
err := msg.Data.Deserialize(to)
if err != nil {
logger.E("sender chat senderMsg %v", err)
return false
}
return true
}