diff options
Diffstat (limited to 'synapse/rest/media/thumbnail_resource.py')
| -rw-r--r-- | synapse/rest/media/thumbnail_resource.py | 133 |
1 files changed, 62 insertions, 71 deletions
diff --git a/synapse/rest/media/thumbnail_resource.py b/synapse/rest/media/thumbnail_resource.py index 661e604b85..85b6bdbe72 100644 --- a/synapse/rest/media/thumbnail_resource.py +++ b/synapse/rest/media/thumbnail_resource.py @@ -13,29 +13,24 @@ # See the License for the specific language governing permissions and # limitations under the License. - import logging -from typing import TYPE_CHECKING, Any, Dict, List, Optional, Tuple +import re +from typing import TYPE_CHECKING, List, Optional, Tuple from synapse.api.errors import Codes, SynapseError, cs_error from synapse.config.repository import THUMBNAIL_SUPPORTED_MEDIA_FORMAT_MAP -from synapse.http.server import ( - DirectServeJsonResource, - respond_with_json, - set_corp_headers, - set_cors_headers, -) -from synapse.http.servlet import parse_integer, parse_string +from synapse.http.server import respond_with_json, set_corp_headers, set_cors_headers +from synapse.http.servlet import RestServlet, parse_integer, parse_string from synapse.http.site import SynapseRequest from synapse.media._base import ( FileInfo, ThumbnailInfo, - parse_media_id, respond_404, respond_with_file, respond_with_responder, ) from synapse.media.media_storage import MediaStorage +from synapse.util.stringutils import parse_and_validate_server_name if TYPE_CHECKING: from synapse.media.media_repository import MediaRepository @@ -44,8 +39,12 @@ if TYPE_CHECKING: logger = logging.getLogger(__name__) -class ThumbnailResource(DirectServeJsonResource): - isLeaf = True +class ThumbnailResource(RestServlet): + PATTERNS = [ + re.compile( + "/_matrix/media/(r0|v3|v1)/thumbnail/(?P<server_name>[^/]*)/(?P<media_id>[^/]*)$" + ) + ] def __init__( self, @@ -60,12 +59,17 @@ class ThumbnailResource(DirectServeJsonResource): self.media_storage = media_storage self.dynamic_thumbnails = hs.config.media.dynamic_thumbnails self._is_mine_server_name = hs.is_mine_server_name + self._server_name = hs.hostname self.prevent_media_downloads_from = hs.config.media.prevent_media_downloads_from - async def _async_render_GET(self, request: SynapseRequest) -> None: + async def on_GET( + self, request: SynapseRequest, server_name: str, media_id: str + ) -> None: + # Validate the server name, raising if invalid + parse_and_validate_server_name(server_name) + set_cors_headers(request) set_corp_headers(request) - server_name, media_id, _ = parse_media_id(request) width = parse_integer(request, "width", required=True) height = parse_integer(request, "height", required=True) method = parse_string(request, "method", "scale") @@ -155,30 +159,24 @@ class ThumbnailResource(DirectServeJsonResource): thumbnail_infos = await 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 + t_w = info.width == desired_width + t_h = info.height == desired_height + t_method = info.method == desired_method + t_type = info.type == desired_type if t_w and t_h and t_method and t_type: file_info = FileInfo( server_name=None, file_id=media_id, url_cache=media_info["url_cache"], - thumbnail=ThumbnailInfo( - width=info["thumbnail_width"], - height=info["thumbnail_height"], - type=info["thumbnail_type"], - method=info["thumbnail_method"], - ), + thumbnail=info, ) - t_type = file_info.thumbnail_type - t_length = info["thumbnail_length"] - responder = await self.media_storage.fetch_media(file_info) if responder: - await respond_with_responder(request, responder, t_type, t_length) + await respond_with_responder( + request, responder, info.type, info.length + ) return logger.debug("We don't have a thumbnail of that size. Generating") @@ -218,29 +216,23 @@ class ThumbnailResource(DirectServeJsonResource): file_id = media_info["filesystem_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 + t_w = info.width == desired_width + t_h = info.height == desired_height + t_method = info.method == desired_method + t_type = info.type == desired_type if t_w and t_h and t_method and t_type: file_info = FileInfo( server_name=server_name, file_id=media_info["filesystem_id"], - thumbnail=ThumbnailInfo( - width=info["thumbnail_width"], - height=info["thumbnail_height"], - type=info["thumbnail_type"], - method=info["thumbnail_method"], - ), + thumbnail=info, ) - t_type = file_info.thumbnail_type - t_length = info["thumbnail_length"] - responder = await self.media_storage.fetch_media(file_info) if responder: - await respond_with_responder(request, responder, t_type, t_length) + await respond_with_responder( + request, responder, info.type, info.length + ) return logger.debug("We don't have a thumbnail of that size. Generating") @@ -300,7 +292,7 @@ class ThumbnailResource(DirectServeJsonResource): desired_height: int, desired_method: str, desired_type: str, - thumbnail_infos: List[Dict[str, Any]], + thumbnail_infos: List[ThumbnailInfo], media_id: str, file_id: str, url_cache: bool, @@ -315,7 +307,7 @@ class ThumbnailResource(DirectServeJsonResource): desired_height: The desired height, the returned thumbnail may be larger than this. desired_method: The desired method used to generate the thumbnail. desired_type: The desired content-type of the thumbnail. - thumbnail_infos: A list of dictionaries of candidate thumbnails. + thumbnail_infos: A list of thumbnail info of candidate thumbnails. file_id: The ID of the media that a thumbnail is being requested for. url_cache: True if this is from a URL cache. server_name: The server name, if this is a remote thumbnail. @@ -418,13 +410,14 @@ class ThumbnailResource(DirectServeJsonResource): # `dynamic_thumbnails` is disabled. logger.info("Failed to find any generated thumbnails") + assert request.path is not None respond_with_json( request, 400, cs_error( - "Cannot find any thumbnails for the requested media (%r). This might mean the media is not a supported_media_format=(%s) or that thumbnailing failed for some other reason. (Dynamic thumbnails are disabled on this server.)" + "Cannot find any thumbnails for the requested media ('%s'). This might mean the media is not a supported_media_format=(%s) or that thumbnailing failed for some other reason. (Dynamic thumbnails are disabled on this server.)" % ( - request.postpath, + request.path.decode(), ", ".join(THUMBNAIL_SUPPORTED_MEDIA_FORMAT_MAP.keys()), ), code=Codes.UNKNOWN, @@ -438,7 +431,7 @@ class ThumbnailResource(DirectServeJsonResource): desired_height: int, desired_method: str, desired_type: str, - thumbnail_infos: List[Dict[str, Any]], + thumbnail_infos: List[ThumbnailInfo], file_id: str, url_cache: bool, server_name: Optional[str], @@ -451,7 +444,7 @@ class ThumbnailResource(DirectServeJsonResource): desired_height: The desired height, the returned thumbnail may be larger than this. desired_method: The desired method used to generate the thumbnail. desired_type: The desired content-type of the thumbnail. - thumbnail_infos: A list of dictionaries of candidate thumbnails. + thumbnail_infos: A list of thumbnail infos of candidate thumbnails. file_id: The ID of the media that a thumbnail is being requested for. url_cache: True if this is from a URL cache. server_name: The server name, if this is a remote thumbnail. @@ -469,21 +462,25 @@ class ThumbnailResource(DirectServeJsonResource): if desired_method == "crop": # Thumbnails that match equal or larger sizes of desired width/height. - crop_info_list: List[Tuple[int, int, int, bool, int, Dict[str, Any]]] = [] + crop_info_list: List[ + Tuple[int, int, int, bool, Optional[int], ThumbnailInfo] + ] = [] # Other thumbnails. - crop_info_list2: List[Tuple[int, int, int, bool, int, Dict[str, Any]]] = [] + crop_info_list2: List[ + Tuple[int, int, int, bool, Optional[int], ThumbnailInfo] + ] = [] for info in thumbnail_infos: # Skip thumbnails generated with different methods. - if info["thumbnail_method"] != "crop": + if info.method != "crop": continue - t_w = info["thumbnail_width"] - t_h = info["thumbnail_height"] + t_w = info.width + t_h = info.height aspect_quality = abs(d_w * t_h - d_h * t_w) min_quality = 0 if d_w <= t_w and d_h <= t_h else 1 size_quality = abs((d_w - t_w) * (d_h - t_h)) - type_quality = desired_type != info["thumbnail_type"] - length_quality = info["thumbnail_length"] + type_quality = desired_type != info.type + length_quality = info.length if t_w >= d_w or t_h >= d_h: crop_info_list.append( ( @@ -508,7 +505,7 @@ class ThumbnailResource(DirectServeJsonResource): ) # Pick the most appropriate thumbnail. Some values of `desired_width` and # `desired_height` may result in a tie, in which case we avoid comparing on - # the thumbnail info dictionary and pick the thumbnail that appears earlier + # the thumbnail info and pick the thumbnail that appears earlier # in the list of candidates. if crop_info_list: thumbnail_info = min(crop_info_list, key=lambda t: t[:-1])[-1] @@ -516,20 +513,20 @@ class ThumbnailResource(DirectServeJsonResource): thumbnail_info = min(crop_info_list2, key=lambda t: t[:-1])[-1] elif desired_method == "scale": # Thumbnails that match equal or larger sizes of desired width/height. - info_list: List[Tuple[int, bool, int, Dict[str, Any]]] = [] + info_list: List[Tuple[int, bool, int, ThumbnailInfo]] = [] # Other thumbnails. - info_list2: List[Tuple[int, bool, int, Dict[str, Any]]] = [] + info_list2: List[Tuple[int, bool, int, ThumbnailInfo]] = [] for info in thumbnail_infos: # Skip thumbnails generated with different methods. - if info["thumbnail_method"] != "scale": + if info.method != "scale": continue - t_w = info["thumbnail_width"] - t_h = info["thumbnail_height"] + t_w = info.width + t_h = info.height size_quality = abs((d_w - t_w) * (d_h - t_h)) - type_quality = desired_type != info["thumbnail_type"] - length_quality = info["thumbnail_length"] + type_quality = desired_type != info.type + length_quality = info.length if t_w >= d_w or t_h >= d_h: info_list.append((size_quality, type_quality, length_quality, info)) else: @@ -538,7 +535,7 @@ class ThumbnailResource(DirectServeJsonResource): ) # Pick the most appropriate thumbnail. Some values of `desired_width` and # `desired_height` may result in a tie, in which case we avoid comparing on - # the thumbnail info dictionary and pick the thumbnail that appears earlier + # the thumbnail info and pick the thumbnail that appears earlier # in the list of candidates. if info_list: thumbnail_info = min(info_list, key=lambda t: t[:-1])[-1] @@ -550,13 +547,7 @@ class ThumbnailResource(DirectServeJsonResource): file_id=file_id, url_cache=url_cache, server_name=server_name, - thumbnail=ThumbnailInfo( - width=thumbnail_info["thumbnail_width"], - height=thumbnail_info["thumbnail_height"], - type=thumbnail_info["thumbnail_type"], - method=thumbnail_info["thumbnail_method"], - length=thumbnail_info["thumbnail_length"], - ), + thumbnail=thumbnail_info, ) # No matching thumbnail was found. |