From ab9f844aaf3662a64dbc4c56077e9fa37bc7d5d0 Mon Sep 17 00:00:00 2001 From: Matthew Hodgson Date: Mon, 22 Jan 2018 19:11:18 +0100 Subject: Add federation_domain_whitelist option (#2820) Add federation_domain_whitelist gives a way to restrict which domains your HS is allowed to federate with. useful mainly for gracefully preventing a private but internet-connected HS from trying to federate to the wider public Matrix network --- synapse/rest/media/v1/media_repository.py | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) (limited to 'synapse/rest/media') diff --git a/synapse/rest/media/v1/media_repository.py b/synapse/rest/media/v1/media_repository.py index 4f56bcf577..485db8577a 100644 --- a/synapse/rest/media/v1/media_repository.py +++ b/synapse/rest/media/v1/media_repository.py @@ -32,8 +32,9 @@ from .media_storage import MediaStorage from synapse.http.matrixfederationclient import MatrixFederationHttpClient from synapse.util.stringutils import random_string -from synapse.api.errors import SynapseError, HttpResponseException, \ - NotFoundError +from synapse.api.errors import ( + SynapseError, HttpResponseException, NotFoundError, FederationDeniedError, +) from synapse.util.async import Linearizer from synapse.util.stringutils import is_ascii @@ -75,6 +76,8 @@ class MediaRepository(object): self.recently_accessed_remotes = set() self.recently_accessed_locals = set() + self.federation_domain_whitelist = hs.config.federation_domain_whitelist + # List of StorageProviders where we should search for media and # potentially upload to. storage_providers = [] @@ -216,6 +219,12 @@ class MediaRepository(object): Deferred: Resolves once a response has successfully been written to request """ + if ( + self.federation_domain_whitelist is not None and + server_name not in self.federation_domain_whitelist + ): + raise FederationDeniedError(server_name) + self.mark_recently_accessed(server_name, media_id) # We linearize here to ensure that we don't try and download remote @@ -250,6 +259,12 @@ class MediaRepository(object): Returns: Deferred[dict]: The media_info of the file """ + if ( + self.federation_domain_whitelist is not None and + server_name not in self.federation_domain_whitelist + ): + raise FederationDeniedError(server_name) + # We linearize here to ensure that we don't try and download remote # media multiple times concurrently key = (server_name, media_id) -- cgit 1.4.1