diff --git a/synapse/rest/media/v1/base_resource.py b/synapse/rest/media/v1/base_resource.py
index c43ae0314b..00668b3862 100644
--- a/synapse/rest/media/v1/base_resource.py
+++ b/synapse/rest/media/v1/base_resource.py
@@ -226,6 +226,89 @@ class BaseMediaResource(Resource):
return ()
@defer.inlineCallbacks
+ def _generate_local_exact_thumbnail(self, media_id, t_width, t_height,
+ t_method, t_type):
+ input_path = self.filepaths.local_media_filepath(media_id)
+
+ def thumbnail():
+ thumbnailer = Thumbnailer(input_path)
+ m_width = thumbnailer.width
+ m_height = thumbnailer.height
+
+ if m_width * m_height >= self.max_image_pixels:
+ logger.info(
+ "Image too large to thumbnail %r x %r > %r",
+ m_width, m_height, self.max_image_pixels
+ )
+ return
+
+ t_path = self.filepaths.local_media_thumbnail(
+ media_id, t_width, t_height, t_type, t_method
+ )
+ self._makedirs(t_path)
+
+ if t_method == "crop":
+ t_len = thumbnailer.crop(t_path, t_width, t_height, t_type)
+ elif t_method == "scale":
+ t_len = thumbnailer.scale(t_path, t_width, t_height, t_type)
+ else:
+ t_len = None
+
+ return t_len, t_path
+
+ res = yield threads.deferToThread(thumbnail)
+
+ if res:
+ t_len, t_path = res
+ yield self.store.store_local_thumbnail(
+ media_id, t_width, t_height, t_type, t_method, t_len
+ )
+
+ defer.returnValue(t_path)
+
+ @defer.inlineCallbacks
+ def _generate_remote_exact_thumbnail(self, server_name, file_id, media_id,
+ t_width, t_height, t_method, t_type):
+ input_path = self.filepaths.remote_media_filepath(server_name, file_id)
+
+ def thumbnail():
+ thumbnailer = Thumbnailer(input_path)
+ m_width = thumbnailer.width
+ m_height = thumbnailer.height
+
+ if m_width * m_height >= self.max_image_pixels:
+ logger.info(
+ "Image too large to thumbnail %r x %r > %r",
+ m_width, m_height, self.max_image_pixels
+ )
+ return
+
+ t_path = self.filepaths.remote_media_thumbnail(
+ media_id, t_width, t_height, t_type, t_method
+ )
+ self._makedirs(t_path)
+
+ if t_method == "crop":
+ t_len = thumbnailer.crop(t_path, t_width, t_height, t_type)
+ elif t_method == "scale":
+ t_len = thumbnailer.scale(t_path, t_width, t_height, t_type)
+ else:
+ t_len = None
+
+ return t_path, t_len
+
+ res = yield threads.deferToThread(thumbnail)
+
+ if res:
+ t_path, t_len = res
+ yield self.store.store_remote_media_thumbnail(
+ server_name, media_id, file_id,
+ t_width, t_height, t_type, t_method, t_len
+ )
+
+ defer.returnValue(t_path)
+
+ @defer.inlineCallbacks
def _generate_local_thumbnails(self, media_id, media_info):
media_type = media_info["media_type"]
requirements = self._get_thumbnail_requirements(media_type)
diff --git a/synapse/rest/media/v1/thumbnail_resource.py b/synapse/rest/media/v1/thumbnail_resource.py
index 61f88e486e..58621f45df 100644
--- a/synapse/rest/media/v1/thumbnail_resource.py
+++ b/synapse/rest/media/v1/thumbnail_resource.py
@@ -43,11 +43,11 @@ class ThumbnailResource(BaseMediaResource):
m_type = parse_string(request, "type", "image/png")
if server_name == self.server_name:
- yield self._respond_local_thumbnail(
+ yield self._select_or_generate_local_thumbnail(
request, media_id, width, height, method, m_type
)
else:
- yield self._respond_remote_thumbnail(
+ yield self._select_or_generate_remote_thumbnail(
request, server_name, media_id,
width, height, method, m_type
)
@@ -83,6 +83,83 @@ class ThumbnailResource(BaseMediaResource):
)
@defer.inlineCallbacks
+ def _select_or_generate_local_thumbnail(self, request, media_id, desired_width,
+ desired_height, desired_method,
+ desired_type):
+ media_info = yield self.store.get_local_media(media_id)
+
+ if not media_info:
+ self._respond_404(request)
+ return
+
+ thumbnail_infos = yield self.store.get_local_media_thumbnails(media_id)
+ for info in thumbnail_infos:
+ t_w = info["thumbnail_width"] == desired_width
+ t_h = info["thumbnail_height"] == desired_height
+ t_method = info["thumbnail_method"] == desired_method
+ t_type = info["thumbnail_type"] == desired_type
+
+ if t_w and t_h and t_method and t_type:
+ file_path = self.filepaths.local_media_thumbnail(
+ media_id, desired_width, desired_height, desired_type, desired_method,
+ )
+ yield self._respond_with_file(request, desired_type, file_path)
+ return
+
+ logger.debug("We don't have a local thumbnail of that size. Generating")
+
+ # Okay, so we generate one.
+ file_path = yield self._generate_local_exact_thumbnail(
+ media_id, desired_width, desired_height, desired_method, desired_type
+ )
+
+ if file_path:
+ yield self._respond_with_file(request, desired_type, file_path)
+ else:
+ yield self._respond_default_thumbnail(
+ request, media_info, desired_width, desired_height,
+ desired_method, desired_type,
+ )
+
+ @defer.inlineCallbacks
+ def _select_or_generate_remote_thumbnail(self, request, server_name, media_id,
+ desired_width, desired_height,
+ desired_method, desired_type):
+ media_info = yield self._get_remote_media(server_name, media_id)
+
+ thumbnail_infos = yield self.store.get_remote_media_thumbnails(
+ server_name, media_id,
+ )
+
+ for info in thumbnail_infos:
+ t_w = info["thumbnail_width"] == desired_width
+ t_h = info["thumbnail_height"] == desired_height
+ t_method = info["thumbnail_method"] == desired_method
+ t_type = info["thumbnail_type"] == desired_type
+
+ if t_w and t_h and t_method and t_type:
+ file_path = self.filepaths.remote_media_thumbnail(
+ media_id, desired_width, desired_height, desired_type, desired_method,
+ )
+ yield self._respond_with_file(request, desired_type, file_path)
+
+ logger.debug("We don't have a local thumbnail of that size. Generating")
+
+ # Okay, so we generate one.
+ path = yield self._generate_remote_exact_thumbnail(
+ server_name, media_id, desired_width, desired_height,
+ desired_method, desired_type
+ )
+
+ if path:
+ yield self._respond_with_file(request, t_type, file_path)
+ else:
+ yield self._respond_default_thumbnail(
+ request, media_info, desired_width, desired_height,
+ desired_method, desired_type,
+ )
+
+ @defer.inlineCallbacks
def _respond_remote_thumbnail(self, request, server_name, media_id, width,
height, method, m_type):
# TODO: Don't download the whole remote file
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