diff options
Diffstat (limited to 'synapse/config/key.py')
| -rw-r--r-- | synapse/config/key.py | 48 |
1 files changed, 44 insertions, 4 deletions
diff --git a/synapse/config/key.py b/synapse/config/key.py index ba2199bceb..f039f96e9c 100644 --- a/synapse/config/key.py +++ b/synapse/config/key.py @@ -50,6 +50,33 @@ and you should enable 'federation_verify_certificates' in your configuration. If you are *sure* you want to do this, set 'accept_keys_insecurely' on the trusted_key_server configuration.""" +TRUSTED_KEY_SERVER_NOT_CONFIGURED_WARN = """\ +Synapse requires that a list of trusted key servers are specified in order to +provide signing keys for other servers in the federation. + +This homeserver does not have a trusted key server configured in +homeserver.yaml and will fall back to the default of 'matrix.org'. + +Trusted key servers should be long-lived and stable which makes matrix.org a +good choice for many admins, but some admins may wish to choose another. To +suppress this warning, the admin should set 'trusted_key_servers' in +homeserver.yaml to their desired key server and 'suppress_key_server_warning' +to 'true'. + +In a future release the software-defined default will be removed entirely and +the trusted key server will be defined exclusively by the value of +'trusted_key_servers'. +--------------------------------------------------------------------------------""" + +TRUSTED_KEY_SERVER_CONFIGURED_AS_M_ORG_WARN = """\ +This server is configured to use 'matrix.org' as its trusted key server via the +'trusted_key_servers' config option. 'matrix.org' is a good choice for a key +server since it is long-lived, stable and trusted. However, some admins may +wish to use another server for this purpose. + +To suppress this warning and continue using 'matrix.org', admins should set +'suppress_key_server_warning' to 'true' in homeserver.yaml. +--------------------------------------------------------------------------------""" logger = logging.getLogger(__name__) @@ -85,6 +112,7 @@ class KeyConfig(Config): config.get("key_refresh_interval", "1d") ) + suppress_key_server_warning = config.get("suppress_key_server_warning", False) key_server_signing_keys_path = config.get("key_server_signing_keys_path") if key_server_signing_keys_path: self.key_server_signing_keys = self.read_signing_keys( @@ -95,6 +123,7 @@ class KeyConfig(Config): # if neither trusted_key_servers nor perspectives are given, use the default. if "perspectives" not in config and "trusted_key_servers" not in config: + logger.warn(TRUSTED_KEY_SERVER_NOT_CONFIGURED_WARN) key_servers = [{"server_name": "matrix.org"}] else: key_servers = config.get("trusted_key_servers", []) @@ -108,6 +137,11 @@ class KeyConfig(Config): # merge the 'perspectives' config into the 'trusted_key_servers' config. key_servers.extend(_perspectives_to_key_servers(config)) + if not suppress_key_server_warning and "matrix.org" in ( + s["server_name"] for s in key_servers + ): + logger.warning(TRUSTED_KEY_SERVER_CONFIGURED_AS_M_ORG_WARN) + # list of TrustedKeyServer objects self.key_servers = list( _parse_key_servers(key_servers, self.federation_verify_certificates) @@ -190,6 +224,10 @@ class KeyConfig(Config): # This setting supercedes an older setting named `perspectives`. The old format # is still supported for backwards-compatibility, but it is deprecated. # + # 'trusted_key_servers' defaults to matrix.org, but using it will generate a + # warning on start-up. To suppress this warning, set + # 'suppress_key_server_warning' to true. + # # Options for each entry in the list include: # # server_name: the name of the server. required. @@ -214,11 +252,13 @@ class KeyConfig(Config): # "ed25519:auto": "abcdefghijklmnopqrstuvwxyzabcdefghijklmopqr" # - server_name: "my_other_trusted_server.example.com" # - # The default configuration is: - # - #trusted_key_servers: - # - server_name: "matrix.org" + trusted_key_servers: + - server_name: "matrix.org" + + # Uncomment the following to disable the warning that is emitted when the + # trusted_key_servers include 'matrix.org'. See above. # + #suppress_key_server_warning: true # The signing keys to use when acting as a trusted key server. If not specified # defaults to the server signing key. |