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Do not send duplicate messages (rocketchat). Fixes #745 (#752)

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For an unknown reason we get duplicate messages (from the same channel)
using the realtime API when we have > 1 channel subscribed on.
Solution for now is caching the message ID in a LRU cache and ignoring
the duplicates.

This should be reviewed when we have actual editing support from the
realtime API
This commit is contained in:
Wim 2019-03-02 22:58:14 +01:00 committed by GitHub
parent f57370f33a
commit 53aa076555
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 21 additions and 7 deletions
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5
bridge/rocketchat/handlers.go
View File

@ -40,6 +40,11 @@ func (b *Brocketchat) handleRocketHook(messages chan *config.Message) {
func (b *Brocketchat) handleRocketClient(messages chan *config.Message) {
for message := range b.messageChan {
// skip messages with same ID, apparently messages get duplicated for an unknown reason
if _, ok := b.cache.Get(message.ID); ok {
continue
}
b.cache.Add(message.ID, true)
b.Log.Debugf("message %#v", message)
m := message
if b.skipMessage(&m) {

23
bridge/rocketchat/rocketchat.go
View File

@ -9,16 +9,18 @@ import (
"github.com/42wim/matterbridge/bridge/helper"
"github.com/42wim/matterbridge/hook/rockethook"
"github.com/42wim/matterbridge/matterhook"
lru "github.com/hashicorp/golang-lru"
"github.com/matterbridge/Rocket.Chat.Go.SDK/models"
"github.com/matterbridge/Rocket.Chat.Go.SDK/realtime"
"github.com/matterbridge/Rocket.Chat.Go.SDK/rest"
)
type Brocketchat struct {
mh *matterhook.Client
rh *rockethook.Client
c *realtime.Client
r *rest.Client
mh *matterhook.Client
rh *rockethook.Client
c *realtime.Client
r *rest.Client
cache *lru.Cache
*bridge.Config
messageChan chan models.Message
channelMap map[string]string
@ -27,9 +29,16 @@ type Brocketchat struct {
}
func New(cfg *bridge.Config) bridge.Bridger {
b := &Brocketchat{Config: cfg}
b.messageChan = make(chan models.Message)
b.channelMap = make(map[string]string)
newCache, err := lru.New(100)
if err != nil {
cfg.Log.Fatalf("Could not create LRU cache for rocketchat bridge: %v", err)
}
b := &Brocketchat{
Config: cfg,
messageChan: make(chan models.Message),
channelMap: make(map[string]string),
cache: newCache,
}
b.Log.Debugf("enabling rocketchat")
return b
}