summary refs log tree commit diff
path: root/synapse/http
diff options
context:
space:
mode:
authorPatrick Cloke <clokep@users.noreply.github.com>2022-01-24 09:38:37 -0500
committerGitHub <noreply@github.com>2022-01-24 14:38:37 +0000
commit02d99f044efbed3c347c19a430d56cfbb41c87a7 (patch)
tree4c089dab1b658194956f7008257f2427678402b9 /synapse/http
parentMerge branch 'master' into develop (diff)
downloadsynapse-02d99f044efbed3c347c19a430d56cfbb41c87a7.tar.xz
Apply a timeout to reading the body when fetching a file. (#11784)
This prevents the URL preview code from reading
a stream forever.
Diffstat (limited to 'synapse/http')
-rw-r--r--synapse/http/client.py15
1 files changed, 12 insertions, 3 deletions
diff --git a/synapse/http/client.py b/synapse/http/client.py
index ca33b45cb2..743a7ffcb1 100644
--- a/synapse/http/client.py
+++ b/synapse/http/client.py
@@ -731,15 +731,24 @@ class SimpleHttpClient:
         # straight back in again
 
         try:
-            length = await make_deferred_yieldable(
-                read_body_with_max_size(response, output_stream, max_size)
-            )
+            d = read_body_with_max_size(response, output_stream, max_size)
+
+            # Ensure that the body is not read forever.
+            d = timeout_deferred(d, 30, self.hs.get_reactor())
+
+            length = await make_deferred_yieldable(d)
         except BodyExceededMaxSize:
             raise SynapseError(
                 HTTPStatus.BAD_GATEWAY,
                 "Requested file is too large > %r bytes" % (max_size,),
                 Codes.TOO_LARGE,
             )
+        except defer.TimeoutError:
+            raise SynapseError(
+                HTTPStatus.BAD_GATEWAY,
+                "Requested file took too long to download",
+                Codes.TOO_LARGE,
+            )
         except Exception as e:
             raise SynapseError(
                 HTTPStatus.BAD_GATEWAY, ("Failed to download remote body: %s" % e)