From f4ebde1596199761e7468eb570f6c7f2682859ec Mon Sep 17 00:00:00 2001
From: Travis Ralston <travpc@gmail.com>
Date: Thu, 12 Sep 2019 18:30:27 -0600
Subject: [PATCH] Wrap deactivation check with sanity conditions

To ensure the matrixClient is not null (the problem) and that unexpected errors don't brick the app.

Fixes https://github.com/vector-im/riot-web/issues/10854
---
 src/components/views/rooms/MemberInfo.js | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/components/views/rooms/MemberInfo.js b/src/components/views/rooms/MemberInfo.js
index 1b4c13db2c1..914e2df3d0a 100644
--- a/src/components/views/rooms/MemberInfo.js
+++ b/src/components/views/rooms/MemberInfo.js
@@ -636,10 +636,19 @@ module.exports = withMatrixClient(React.createClass({
     },
 
     _calculateOpsPermissions: async function(member) {
+        let canDeactivate = false;
+        if (this.context.matrixClient) {
+            try {
+                canDeactivate = await this.context.matrixClient.isSynapseAdministrator();
+            } catch (e) {
+                console.error(e);
+            }
+        }
+
         const defaultPerms = {
             can: {
                 // Calculate permissions for Synapse before doing the PL checks
-                synapseDeactivate: await this.context.matrixClient.isSynapseAdministrator(),
+                synapseDeactivate: canDeactivate,
             },
             muted: false,
         };