Limit the size of uploads

synapse/config/repository.py

@@ -0,0 +1,39 @@
+# -*- coding: utf-8 -*-
+# Copyright 2014 matrix.org
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from ._base import Config
+import os
+
+class ContentRepositoryConfig(Config):
+    def __init__(self, args):
+        super(ContentRepositoryConfig, self).__init__(args)
+        self.max_upload_size = self.parse_size(args.max_upload_size)
+
+    def parse_size(self, string):
+        sizes = {"K": 1024, "M": 1024 * 1024}
+        size = 1
+        suffix = string[-1]
+        if suffix in sizes:
+            string = string[:-1]
+            size = sizes[suffix]
+        return int(string) * size
+
+    @classmethod
+    def add_arguments(cls, parser):
+        super(ContentRepositoryConfig, cls).add_arguments(parser)
+        db_group = parser.add_argument_group("content_repository")
+        db_group.add_argument(
+            "--max-upload-size", default="1M"
+        )