Don't write config file if curl returns something else than 200

wireguard/wgportal_peer_install.sh

@@ -139,18 +139,23 @@ _download() {
 
   WGPORTAL_APIURL=$WGPORTAL_URL"api/v1/provisioning/peer"
   _debug "GET request to $WGPORTAL_APIURL"
-  HTTP_STATUS=$(curl -w "%{http_code}" -G -s -o $WG_CONFFILE --user $username:$password --data-urlencode "PublicKey=$wgpubkey" -X GET $WGPORTAL_APIURL -H  "accept: text/plain")
+  HTTP_RESPONSE=$(curl -G -s --write-out "HTTPSTATUS:%{http_code}" --user $username:$password --data-urlencode "PublicKey=$wgpubkey" -X GET $WGPORTAL_APIURL -H  "accept: text/plain")
   res=$?
   if [ "$res" != "0" ]; then
     echo "the curl command failed with: $res"
   fi
 
-  if [ $HTTP_STATUS -ne 200 ]; then
-    printf "Curl returned HTTP code %s\n" "$HTTP_STATUS"
-    exit 1;
+  HTTP_BODY=$(echo "$HTTP_RESPONSE" | sed -E 's/HTTPSTATUS\:[0-9]{3}$//')
+  HTTP_STATUS=$(echo "$HTTP_RESPONSE" | tr -d '\n' | sed -E 's/.*HTTPSTATUS:([0-9]{3})$/\1/')
+
+  if [ $HTTP_STATUS = "200" ]; then
+    echo "$HTTP_BODY" > $WG_CONFFILE
+    printf "WG config successfully downloaded at %s\n" "$WG_CONFFILE"
+    return
   fi
 
-  printf "WG config successfully download at %s\n" "$WG_CONFFILE"
+  printf "Curl returned HTTP code %s\n" "$HTTP_STATUS"
+  exit 1;
 }
 
 _install() {