1 files changed, 55 insertions, 0 deletions
diff --git a/vendor/layeh.com/gumble/gumbleutil/acl.go b/vendor/layeh.com/gumble/gumbleutil/acl.go
new file mode 100644
index 00000000..67cd86d5
--- /dev/null
+++ b/vendor/layeh.com/gumble/gumbleutil/acl.go
@@ -0,0 +1,55 @@
+package gumbleutil
+
+import (
+	"layeh.com/gumble/gumble"
+)
+
+// UserGroups fetches the group names the given user belongs to in the given
+// channel. The slice of group names sent via the returned channel. On error,
+// the returned channel is closed without without sending a slice.
+func UserGroups(client *gumble.Client, user *gumble.User, channel *gumble.Channel) <-chan []string {
+	ch := make(chan []string)
+
+	if !user.IsRegistered() {
+		close(ch)
+		return ch
+	}
+
+	var detacher gumble.Detacher
+	listener := Listener{
+		Disconnect: func(e *gumble.DisconnectEvent) {
+			detacher.Detach()
+			close(ch)
+		},
+		ChannelChange: func(e *gumble.ChannelChangeEvent) {
+			if e.Channel == channel && e.Type.Has(gumble.ChannelChangeRemoved) {
+				detacher.Detach()
+				close(ch)
+			}
+		},
+		PermissionDenied: func(e *gumble.PermissionDeniedEvent) {
+			if e.Channel == channel && e.Type == gumble.PermissionDeniedPermission && (e.Permission&gumble.PermissionWrite) != 0 {
+				detacher.Detach()
+				close(ch)
+			}
+		},
+		ACL: func(e *gumble.ACLEvent) {
+			if e.ACL.Channel != channel {
+				return
+			}
+			var names []string
+			for _, g := range e.ACL.Groups {
+				if (g.UsersAdd[user.UserID] != nil || g.UsersInherited[user.UserID] != nil) && g.UsersRemove[user.UserID] == nil {
+					names = append(names, g.Name)
+				}
+			}
+			detacher.Detach()
+			ch <- names
+			close(ch)
+		},
+	}
+	detacher = client.Config.Attach(&listener)
+	channel.RequestACL()
+
+	return ch
+}