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Add caching to fix issue with slack API changes (slack). #481

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This commit is contained in:
Wim 2018-08-18 00:12:05 +02:00
parent 351b423e15
commit b51fdbce9f
1 changed files with 36 additions and 3 deletions
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39
bridge/slack/slack.go
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@ -14,6 +14,7 @@ import (
"github.com/42wim/matterbridge/bridge/config"
"github.com/42wim/matterbridge/bridge/helper"
"github.com/42wim/matterbridge/matterhook"
"github.com/hashicorp/golang-lru"
"github.com/nlopes/slack"
"github.com/rs/xid"
)
@ -26,6 +27,7 @@ type Bslack struct {
Usergroups []slack.UserGroup
si *slack.Info
channels []slack.Channel
cache *lru.Cache
UseChannelID bool
uuid string
*bridge.Config
@ -35,7 +37,9 @@ type Bslack struct {
const messageDeleted = "message_deleted"
func New(cfg *bridge.Config) bridge.Bridger {
return &Bslack{Config: cfg, uuid: xid.New().String()}
b := &Bslack{Config: cfg, uuid: xid.New().String()}
b.cache, _ = lru.New(5000)
return b
}
func (b *Bslack) Command(cmd string) string {
@ -456,15 +460,26 @@ func (b *Bslack) handleDownloadFile(rmsg *config.Message, file *slack.File) erro
// handleUploadFile handles native upload of files
func (b *Bslack) handleUploadFile(msg *config.Message, channelID string) (string, error) {
var err error
for _, f := range msg.Extra["file"] {
fi := f.(config.FileInfo)
_, err = b.sc.UploadFile(slack.FileUploadParameters{
if msg.Text == fi.Comment {
msg.Text = ""
}
/* because the result of the UploadFile is slower than the MessageEvent from slack
we can't match on the file ID yet, so we have to match on the filename too
*/
b.Log.Debugf("Adding file %s to cache %s", fi.Name, time.Now().String())
b.cache.Add("filename"+fi.Name, time.Now())
res, err := b.sc.UploadFile(slack.FileUploadParameters{
Reader: bytes.NewReader(*fi.Data),
Filename: fi.Name,
Channels: []string{channelID},
InitialComment: fi.Comment,
})
if res.ID != "" {
b.Log.Debugf("Adding fileid %s to cache %s", res.ID, time.Now().String())
b.cache.Add("file"+res.ID, time.Now())
}
if err != nil {
b.Log.Errorf("uploadfile %#v", err)
}
@ -694,6 +709,24 @@ func (b *Bslack) skipMessageEvent(ev *slack.MessageEvent) bool {
return true
}
}
if len(ev.Files) > 0 {
for _, f := range ev.Files {
// if the file is in the cache and isn't older then a minute, skip it
if ts, ok := b.cache.Get("file" + f.ID); ok && time.Since(ts.(time.Time)) < time.Minute {
b.Log.Debugf("Not downloading file id %s which we uploaded", f.ID)
return true
} else {
if ts, ok := b.cache.Get("filename" + f.Name); ok && time.Since(ts.(time.Time)) < time.Second*10 {
b.Log.Debugf("Not downloading file name %s which we uploaded", f.Name)
return true
} else {
b.Log.Debugf("Not skipping %s %s", f.Name, time.Now().String())
}
}
}
}
return false
}