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Diffstat (limited to '')
| -rw-r--r-- | synapse/config/tls.py | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/synapse/config/tls.py b/synapse/config/tls.py index 81b3a659fe..9fcc79816d 100644 --- a/synapse/config/tls.py +++ b/synapse/config/tls.py @@ -64,10 +64,14 @@ class TlsConfig(Config): self.tls_certificate = None self.tls_private_key = None - def is_disk_cert_valid(self): + def is_disk_cert_valid(self, allow_self_signed=True): """ Is the certificate we have on disk valid, and if so, for how long? + Args: + allow_self_signed (bool): Should we allow the certificate we + read to be self signed? + Returns: int: Days remaining of certificate validity. None: No certificate exists. @@ -88,6 +92,12 @@ class TlsConfig(Config): logger.exception("Failed to parse existing certificate off disk!") raise + if not allow_self_signed: + if tls_certificate.get_subject() == tls_certificate.get_issuer(): + raise ValueError( + "TLS Certificate is self signed, and this is not permitted" + ) + # YYYYMMDDhhmmssZ -- in UTC expires_on = datetime.strptime( tls_certificate.get_notAfter().decode('ascii'), "%Y%m%d%H%M%SZ" |