From 87aa0b66594f5a88de7f6f13c13083f0dd8a9429 Mon Sep 17 00:00:00 2001
From: Tulir Asokan <tulir@maunium.net>
Date: Thu, 18 Jul 2019 23:23:10 +0300
Subject: [PATCH] Limit displaynames sent to Matrix to 100 characters

---
 mautrix_telegram/puppet.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mautrix_telegram/puppet.py b/mautrix_telegram/puppet.py
index c8361414..3f630066 100644
--- a/mautrix_telegram/puppet.py
+++ b/mautrix_telegram/puppet.py
@@ -379,7 +379,7 @@ class Puppet:
             self.displayname = displayname
             self.displayname_source = source.tgid
             try:
-                await self.default_mxid_intent.set_display_name(displayname)
+                await self.default_mxid_intent.set_display_name(displayname[:100])
             except MatrixRequestError:
                 self.log.exception("Failed to set displayname")
                 self.displayname = ""