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authorTill <2353100+S7evinK@users.noreply.github.com>2022-05-11 18:15:18 +0200
committerGitHub <noreply@github.com>2022-05-11 17:15:18 +0100
commit58af7f61b6c3719e15cb4088a343cd08b404f5be (patch)
treef175b60da826dafaf58499dd3f1dbce5a7c3d6cc
parent24f7be968d6459e887de7c18e17a2c7bb8294796 (diff)
Fix OTK upload spam (#2448)
* Fix OTK spam * Update comment * Optimize selectKeysCountSQL to only return max 100 keys * Return CurrentPosition if the request timed out * Revert "Return CurrentPosition if the request timed out" This reverts commit 7dbdda964189f5542048c06ce5ffc6d4da1814e6. Co-authored-by: kegsay <kegan@matrix.org>
-rw-r--r--keyserver/storage/postgres/one_time_keys_table.go4
-rw-r--r--keyserver/storage/sqlite3/one_time_keys_table.go4
-rw-r--r--syncapi/sync/requestpool.go8
3 files changed, 14 insertions, 2 deletions
diff --git a/keyserver/storage/postgres/one_time_keys_table.go b/keyserver/storage/postgres/one_time_keys_table.go
index d8c76b49..2117efca 100644
--- a/keyserver/storage/postgres/one_time_keys_table.go
+++ b/keyserver/storage/postgres/one_time_keys_table.go
@@ -53,7 +53,9 @@ const selectKeysSQL = "" +
"SELECT concat(algorithm, ':', key_id) as algorithmwithid, key_json FROM keyserver_one_time_keys WHERE user_id=$1 AND device_id=$2 AND concat(algorithm, ':', key_id) = ANY($3);"
const selectKeysCountSQL = "" +
- "SELECT algorithm, COUNT(key_id) FROM keyserver_one_time_keys WHERE user_id=$1 AND device_id=$2 GROUP BY algorithm"
+ "SELECT algorithm, COUNT(key_id) FROM " +
+ " (SELECT algorithm, key_id FROM keyserver_one_time_keys WHERE user_id = $1 AND device_id = $2 LIMIT 100)" +
+ " x GROUP BY algorithm"
const deleteOneTimeKeySQL = "" +
"DELETE FROM keyserver_one_time_keys WHERE user_id = $1 AND device_id = $2 AND algorithm = $3 AND key_id = $4"
diff --git a/keyserver/storage/sqlite3/one_time_keys_table.go b/keyserver/storage/sqlite3/one_time_keys_table.go
index d2c0b7b2..7a923d0e 100644
--- a/keyserver/storage/sqlite3/one_time_keys_table.go
+++ b/keyserver/storage/sqlite3/one_time_keys_table.go
@@ -52,7 +52,9 @@ const selectKeysSQL = "" +
"SELECT key_id, algorithm, key_json FROM keyserver_one_time_keys WHERE user_id=$1 AND device_id=$2"
const selectKeysCountSQL = "" +
- "SELECT algorithm, COUNT(key_id) FROM keyserver_one_time_keys WHERE user_id=$1 AND device_id=$2 GROUP BY algorithm"
+ "SELECT algorithm, COUNT(key_id) FROM " +
+ " (SELECT algorithm, key_id FROM keyserver_one_time_keys WHERE user_id = $1 AND device_id = $2 LIMIT 100)" +
+ " x GROUP BY algorithm"
const deleteOneTimeKeySQL = "" +
"DELETE FROM keyserver_one_time_keys WHERE user_id = $1 AND device_id = $2 AND algorithm = $3 AND key_id = $4"
diff --git a/syncapi/sync/requestpool.go b/syncapi/sync/requestpool.go
index 8ab13091..30c490df 100644
--- a/syncapi/sync/requestpool.go
+++ b/syncapi/sync/requestpool.go
@@ -248,7 +248,15 @@ func (rp *RequestPool) OnIncomingSyncRequest(req *http.Request, device *userapi.
defer userStreamListener.Close()
giveup := func() util.JSONResponse {
+ syncReq.Log.Debugln("Responding to sync since client gave up or timeout was reached")
syncReq.Response.NextBatch = syncReq.Since
+ // We should always try to include OTKs in sync responses, otherwise clients might upload keys
+ // even if that's not required. See also:
+ // https://github.com/matrix-org/synapse/blob/29f06704b8871a44926f7c99e73cf4a978fb8e81/synapse/rest/client/sync.py#L276-L281
+ err = internal.DeviceOTKCounts(syncReq.Context, rp.keyAPI, syncReq.Device.UserID, syncReq.Device.ID, syncReq.Response)
+ if err != nil {
+ syncReq.Log.WithError(err).Error("failed to get OTK counts")
+ }
return util.JSONResponse{
Code: http.StatusOK,
JSON: syncReq.Response,