diff --git a/synapse/rest/media/v1/_base.py b/synapse/rest/media/v1/_base.py
index 57a4509816..1310820486 100644
--- a/synapse/rest/media/v1/_base.py
+++ b/synapse/rest/media/v1/_base.py
@@ -125,3 +125,76 @@ def add_file_headers(request, media_type, file_size, upload_name):
request.setHeader(
b"Content-Length", b"%d" % (file_size,)
)
+
+
+@defer.inlineCallbacks
+def respond_with_responder(request, responder, media_type, file_size, upload_name=None):
+ """Responds to the request with given responder. If responder is None then
+ returns 404.
+
+ Args:
+ request (twisted.web.http.Request)
+ responder (Responder)
+ media_type (str): The media/content type.
+ file_size (int): Size in bytes of the media, if known.
+ upload_name (str): The name of the requested file, if any.
+ """
+ if not responder:
+ respond_404(request)
+ return
+
+ add_file_headers(request, media_type, file_size, upload_name)
+ yield responder.write_to_consumer(request)
+ finish_request(request)
+
+
+class Responder(object):
+ """Represents a response that can be streamed to the requester.
+
+ Either `write_to_consumer` or `cancel` must be called to clean up any open
+ resources.
+ """
+ def write_to_consumer(self, consumer):
+ """Stream response into consumer
+
+ Args:
+ consumer (IConsumer)
+
+ Returns:
+ Deferred: Resolves once the response has finished being written
+ """
+ pass
+
+ def cancel(self):
+ """Called when the responder is not going to be used after all.
+ """
+ pass
+
+
+class FileInfo(object):
+ """Details about a requested/uploaded file.
+
+ Attributes:
+ server_name (str): The server name where the media originated from,
+ or None if local.
+ file_id (str): The local ID of the file. For local files this is the
+ same as the media_id
+ media_type (str): Type of the file
+ url_cache (bool): If the file is for the url preview cache
+ thumbnail (bool): Whether the file is a thumbnail or not.
+ thumbnail_width (int)
+ thumbnail_height (int)
+ thumbnail_method (int)
+ thumbnail_type (str)
+ """
+ def __init__(self, server_name, file_id, url_cache=False,
+ thumbnail=False, thumbnail_width=None, thumbnail_height=None,
+ thumbnail_method=None, thumbnail_type=None):
+ self.server_name = server_name
+ self.file_id = file_id
+ self.url_cache = url_cache
+ self.thumbnail = thumbnail
+ self.thumbnail_width = thumbnail_width
+ self.thumbnail_height = thumbnail_height
+ self.thumbnail_method = thumbnail_method
+ self.thumbnail_type = thumbnail_type
|
