Dedup text/plain bulk exit list

 * These duplicates are a result of trac 10499 but, in general, the
   authorities do allow up to two relays to exit from the same ip.

 * Closes trac 15480

1 files changed, 5 insertions, 1 deletions

diff --git a/datastore.go b/datastore.go
index 34106a6..4ce9516 100644
--- a/datastore.go
+++ b/datastore.go
@@ -130,8 +130,12 @@ type Exits struct {
 
 func (e *Exits) Dump(w io.Writer, tminus int, ip string, port int) {
 	ap := AddressPort{ip, port}
+	var last string
 	e.GetAllExits(ap, tminus, func(exit string, _ string, _ int) {
-		w.Write([]byte(exit + "\n"))
+		if exit != last {
+			w.Write([]byte(exit + "\n"))
+			last = exit
+		}
 	})
 }