diff --git a/synapse/config/appservice.py b/synapse/config/appservice.py
index 5569c43b35..759209a85b 100644
--- a/synapse/config/appservice.py
+++ b/synapse/config/appservice.py
@@ -86,7 +86,7 @@ def load_appservices(hostname, config_files):
def _load_appservice(hostname, as_info, config_filename):
required_string_fields = [
- "id", "url", "as_token", "hs_token", "sender_localpart"
+ "id", "as_token", "hs_token", "sender_localpart"
]
for field in required_string_fields:
if not isinstance(as_info.get(field), basestring):
@@ -94,6 +94,13 @@ def _load_appservice(hostname, as_info, config_filename):
field, config_filename,
))
+ # 'url' must either be a string or explicitly null, not missing
+ # to avoid accidentally turning off push for ASes.
+ if not isinstance(as_info.get("url"), basestring) and as_info.get("url", "") is not None:
+ raise KeyError(
+ "Required string field or explicit null: 'url' (%s)" % (config_filename,)
+ )
+
localpart = as_info["sender_localpart"]
if urllib.quote(localpart) != localpart:
raise ValueError(
@@ -133,10 +140,10 @@ def _load_appservice(hostname, as_info, config_filename):
if not isinstance(p, str):
raise KeyError("Bad value for 'protocols' item")
- if as_info["url"] == "":
+ if as_info["url"] == None:
logger.info(
- "(%s) Explicitly empty 'url' provided. This application service " +
- "will not receive events or queries.",
+ "(%s) Explicitly empty 'url' provided. This application service"
+ " will not receive events or queries.",
config_filename,
)
return ApplicationService(
|