summary refs log tree commit diff
path: root/synapse/config
diff options
context:
space:
mode:
Diffstat (limited to 'synapse/config')
-rw-r--r--synapse/config/server.py48
-rw-r--r--synapse/config/tls.py63
2 files changed, 69 insertions, 42 deletions
diff --git a/synapse/config/server.py b/synapse/config/server.py
index 767897c419..c5c3aac8ed 100644
--- a/synapse/config/server.py
+++ b/synapse/config/server.py
@@ -387,47 +387,47 @@ class ServerConfig(Config):
         #   webclient: A web client. Requires web_client_location to be set.
         #
         listeners:
-          # Main HTTPS listener.
-          # For when matrix traffic is sent directly to synapse.
-          - port: %(bind_port)s
+          # TLS-enabled listener: for when matrix traffic is sent directly to synapse.
+          #
+          # Disabled by default. To enable it, uncomment the following. (Note that you
+          # will also need to give Synapse a TLS key and certificate: see the TLS section
+          # below.)
+          #
+          # - port: %(bind_port)s
+          #   type: http
+          #   tls: true
+          #   resources:
+          #     - names: [client, federation]
+
+          # Unsecure HTTP listener: for when matrix traffic passes through a reverse proxy
+          # that unwraps TLS.
+          #
+          # If you plan to use a reverse proxy, please see
+          # https://github.com/matrix-org/synapse/blob/master/docs/reverse_proxy.rst.
+          #
+          - port: %(unsecure_port)s
+            tls: false
+            bind_addresses: ['::1', '127.0.0.1']
             type: http
-            tls: true
+            x_forwarded: true
 
-            # List of HTTP resources to serve on this listener.
             resources:
-              - names: [client]
-                compress: true
-              - names: [federation]
+              - names: [client, federation]
                 compress: false
 
-            # example addional_resources:
+            # example additonal_resources:
             #
             # additional_resources:
             #   "/_matrix/my/custom/endpoint":
             #     module: my_module.CustomRequestHandler
             #     config: {}
 
-          # Unsecure HTTP listener
-          # For when matrix traffic passes through a reverse-proxy that unwraps TLS.
-          - port: %(unsecure_port)s
-            tls: false
-            bind_addresses: ['::1', '127.0.0.1']
-            type: http
-            x_forwarded: true
-
-            resources:
-              - names: [client]
-                compress: true
-              - names: [federation]
-                compress: false
-
           # Turn on the twisted ssh manhole service on localhost on the given
           # port.
           # - port: 9000
           #   bind_addresses: ['::1', '127.0.0.1']
           #   type: manhole
 
-
         # Homeserver blocking
         #
         # How to reach the server admin, used in ResourceLimitError
diff --git a/synapse/config/tls.py b/synapse/config/tls.py
index 86e6eb80db..5fb3486db1 100644
--- a/synapse/config/tls.py
+++ b/synapse/config/tls.py
@@ -23,7 +23,7 @@ from unpaddedbase64 import encode_base64
 
 from OpenSSL import crypto
 
-from synapse.config._base import Config
+from synapse.config._base import Config, ConfigError
 
 logger = logging.getLogger(__name__)
 
@@ -45,6 +45,19 @@ class TlsConfig(Config):
 
         self.tls_certificate_file = self.abspath(config.get("tls_certificate_path"))
         self.tls_private_key_file = self.abspath(config.get("tls_private_key_path"))
+
+        if self.has_tls_listener():
+            if not self.tls_certificate_file:
+                raise ConfigError(
+                    "tls_certificate_path must be specified if TLS-enabled listeners are "
+                    "configured."
+                )
+            if not self.tls_private_key_file:
+                raise ConfigError(
+                    "tls_certificate_path must be specified if TLS-enabled listeners are "
+                    "configured."
+                )
+
         self._original_tls_fingerprints = config.get("tls_fingerprints", [])
 
         if self._original_tls_fingerprints is None:
@@ -105,26 +118,40 @@ class TlsConfig(Config):
         days_remaining = (expires_on - now).days
         return days_remaining
 
-    def read_certificate_from_disk(self):
-        """
-        Read the certificates from disk.
+    def read_certificate_from_disk(self, require_cert_and_key):
         """
-        self.tls_certificate = self.read_tls_certificate()
+        Read the certificates and private key from disk.
 
-        if self.has_tls_listener():
+        Args:
+            require_cert_and_key (bool): set to True to throw an error if the certificate
+                and key file are not given
+        """
+        if require_cert_and_key:
             self.tls_private_key = self.read_tls_private_key()
+            self.tls_certificate = self.read_tls_certificate()
+        elif self.tls_certificate_file:
+            # we only need the certificate for the tls_fingerprints. Reload it if we
+            # can, but it's not a fatal error if we can't.
+            try:
+                self.tls_certificate = self.read_tls_certificate()
+            except Exception as e:
+                logger.info(
+                    "Unable to read TLS certificate (%s). Ignoring as no "
+                    "tls listeners enabled.", e,
+                )
 
         self.tls_fingerprints = list(self._original_tls_fingerprints)
 
-        # Check that our own certificate is included in the list of fingerprints
-        # and include it if it is not.
-        x509_certificate_bytes = crypto.dump_certificate(
-            crypto.FILETYPE_ASN1, self.tls_certificate
-        )
-        sha256_fingerprint = encode_base64(sha256(x509_certificate_bytes).digest())
-        sha256_fingerprints = set(f["sha256"] for f in self.tls_fingerprints)
-        if sha256_fingerprint not in sha256_fingerprints:
-            self.tls_fingerprints.append({u"sha256": sha256_fingerprint})
+        if self.tls_certificate:
+            # Check that our own certificate is included in the list of fingerprints
+            # and include it if it is not.
+            x509_certificate_bytes = crypto.dump_certificate(
+                crypto.FILETYPE_ASN1, self.tls_certificate
+            )
+            sha256_fingerprint = encode_base64(sha256(x509_certificate_bytes).digest())
+            sha256_fingerprints = set(f["sha256"] for f in self.tls_fingerprints)
+            if sha256_fingerprint not in sha256_fingerprints:
+                self.tls_fingerprints.append({u"sha256": sha256_fingerprint})
 
     def default_config(self, config_dir_path, server_name, **kwargs):
         base_key_name = os.path.join(config_dir_path, server_name)
@@ -149,10 +176,10 @@ class TlsConfig(Config):
         # See 'ACME support' below to enable auto-provisioning this certificate via
         # Let's Encrypt.
         #
-        tls_certificate_path: "%(tls_certificate_path)s"
+        # tls_certificate_path: "%(tls_certificate_path)s"
 
         # PEM-encoded private key for TLS
-        tls_private_key_path: "%(tls_private_key_path)s"
+        # tls_private_key_path: "%(tls_private_key_path)s"
 
         # ACME support: This will configure Synapse to request a valid TLS certificate
         # for your configured `server_name` via Let's Encrypt.
@@ -177,7 +204,7 @@ class TlsConfig(Config):
         #
         acme:
             # ACME support is disabled by default. Uncomment the following line
-            # to enable it.
+            # (and tls_certificate_path and tls_private_key_path above) to enable it.
             #
             # enabled: true