From bfe586843f5c9277a34b146ba5b7c6794d428807 Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Wed, 13 Apr 2016 13:52:57 +0100 Subject: [PATCH] Add back in helpful description for missing url_preview_ip_range_blacklist --- synapse/config/repository.py | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/synapse/config/repository.py b/synapse/config/repository.py index 82ff8df59..656eb7ba6 100644 --- a/synapse/config/repository.py +++ b/synapse/config/repository.py @@ -88,7 +88,11 @@ class ContentRepositoryConfig(Config): config["url_preview_ip_range_blacklist"] ) else: - raise ConfigError("url_preview_url_blacklist is required") + raise ConfigError( + "For security, you must specify an explicit target IP address " + "blacklist in url_preview_ip_range_blacklist for url previewing " + "to work" + ) if "url_preview_url_blacklist" in config: self.url_preview_url_blacklist = config["url_preview_url_blacklist"]