disable TURN on blocked ports

see bigbluebutton#73

sample.env

@@ -7,9 +7,6 @@
 # fully automated Lets Encrypt certificates
 ENABLE_HTTPS_PROXY=true
 
-# coturn (a TURN Server)
-# requires HTTPS Proxy to be enabled
-ENABLE_COTURN=true
 
 # Greenlight Frontend
 # https://docs.bigbluebutton.org/greenlight/gl-overview.html

scripts/compose

@@ -22,6 +22,30 @@ if [ -z "$EXTERNAL_IPv4" ]; then
  exit 1
 fi
 
+# check for blocked TURN port
+# https://github.com/bigbluebutton/docker/issues/73
+if [ -n "$TURN_SERVER" ]; then
+ port=$(echo $TURN_SERVER | awk -F: '{print $3}' | awk -F'?' '{print $1}')
+ if [[ "$port" -lt "1024" ]] && [ "$port" != "443" ] && [ "$port" != "80" ]; then
+ echo "-------------------------------------"
+ echo "ERROR: you use the TURN port $port, which gets blocked by recent browser"
+ echo "releases, leading BBB throwing always an 1006 error, connecting impossible."
+ echo ""
+ echo "If you use the integrated TURN server, there is currently no way to make it"
+ echo "work. so you should disable the server by emptying the TURN_SERVER variable"
+ echo "in .env"
+ echo "If you use an external TURN server with an own IP, you should switch to"
+ echo "port 443"
+ echo ""
+ echo "More Information: https://github.com/bigbluebutton/docker/issues/73"
+ echo
+ echo "current setting:"
+ echo "TURN_SERVER=$TURN_SERVER"
+ echo "-------------------------------------"
+ exit 1
+ fi
+fi
+
 # set conditional variables
 export CERTIFICATE_DOMAINS=$DOMAIN
 export GREENLIGHT_ENDPOINT=https://$DOMAIN/bigbluebutton/api/

scripts/setup

@@ -33,12 +33,14 @@ while [[ ! $https_proxy =~ ^(y|n)$ ]]; do
 done
 
 coturn=""
-if [ "$https_proxy" == "y" ]
-then
- while [[ ! $coturn =~ ^(y|n)$ ]]; do
- read -p "Should a coturn be included? (y/n): " coturn
- done
-fi
+# comment out due to blocked TURN ports
+# https://github.com/bigbluebutton/docker/issues/73
+# if [ "$https_proxy" == "y" ]
+# then
+# while [[ ! $coturn =~ ^(y|n)$ ]]; do
+# read -p "Should a coturn be included? (y/n): " coturn
+# done
+# fi
 
 prometheus_exporter=""
 while [[ ! $prometheus_exporter =~ ^(y|n)$ ]]; do