diff options
Diffstat (limited to 'bridge/matrix/helpers.go')
| -rw-r--r-- | bridge/matrix/helpers.go | 29 |
1 files changed, 23 insertions, 6 deletions
diff --git a/bridge/matrix/helpers.go b/bridge/matrix/helpers.go index 91aea805..8256dc7d 100644 --- a/bridge/matrix/helpers.go +++ b/bridge/matrix/helpers.go @@ -3,6 +3,7 @@ package bmatrix import ( "encoding/json" "errors" + "fmt" "html" "strings" "time" @@ -82,20 +83,36 @@ func (b *Bmatrix) getDisplayName(mxid string) string { func (b *Bmatrix) cacheDisplayName(mxid string, displayName string) string { now := time.Now() - // scan to delete old entries, to stop memory usage from becoming too high with old entries + // scan to delete old entries, to stop memory usage from becoming too high with old entries. + // In addition, we also detect if another user have the same username, and if so, we append their mxids to their usernames to differentiate them. toDelete := []string{} - b.RLock() - for k, v := range b.NicknameMap { + conflict := false + + b.Lock() + for mxid, v := range b.NicknameMap { + // to prevent username reuse across matrix servers - or even on the same server, append + // the mxid to the username when there is a conflict + if v.displayName == displayName { + conflict = true + // TODO: it would be nice to be able to rename previous messages from this user. + // The current behavior is that only users with clashing usernames and *that have spoken since the bridge last started* will get their mxids shown, and I don't know if that's the expected behavior. + v.displayName = fmt.Sprintf("%s (%s)", displayName, mxid) + b.NicknameMap[mxid] = v + } + if now.Sub(v.lastUpdated) > 10*time.Minute { - toDelete = append(toDelete, k) + toDelete = append(toDelete, mxid) } } - b.RUnlock() - b.Lock() + if conflict { + displayName = fmt.Sprintf("%s (%s)", displayName, mxid) + } + for _, v := range toDelete { delete(b.NicknameMap, v) } + b.NicknameMap[mxid] = NicknameCacheEntry{ displayName: displayName, lastUpdated: now, |