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Convert media repo's FileInfo to attrs. (#10785)

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This is mostly an internal change, but improves type hints in the
media code.
This commit is contained in:
Patrick Cloke 2021-09-14 07:09:38 -04:00 committed by GitHub
parent 319b8b6bef
commit b996782df5
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5 changed files with 138 additions and 106 deletions
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1
changelog.d/10785.misc Normal file
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@ -0,0 +1 @@
Convert the internal `FileInfo` class to attrs and add type hints.

90
synapse/rest/media/v1/_base.py
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@ -18,6 +18,8 @@ import os
import urllib
from typing import Awaitable, Dict, Generator, List, Optional, Tuple
import attr
from twisted.internet.interfaces import IConsumer
from twisted.protocols.basic import FileSender
from twisted.web.server import Request
@ -287,44 +289,62 @@ class Responder:
pass
@attr.s(slots=True, frozen=True, auto_attribs=True)
class ThumbnailInfo:
"""Details about a generated thumbnail."""
width: int
height: int
method: str
# Content type of thumbnail, e.g. image/png
type: str
# The size of the media file, in bytes.
length: Optional[int] = None
@attr.s(slots=True, frozen=True, auto_attribs=True)
class FileInfo:
"""Details about a requested/uploaded file.
"""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
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 (str)
thumbnail_type (str): Content type of thumbnail, e.g. image/png
thumbnail_length (int): The size of the media file, in bytes.
"""
# The server name where the media originated from, or None if local.
server_name: Optional[str]
# The local ID of the file. For local files this is the same as the media_id
file_id: str
# If the file is for the url preview cache
url_cache: bool = False
# Whether the file is a thumbnail or not.
thumbnail: Optional[ThumbnailInfo] = None
def __init__(
self,
server_name,
file_id,
url_cache=False,
thumbnail=False,
thumbnail_width=None,
thumbnail_height=None,
thumbnail_method=None,
thumbnail_type=None,
thumbnail_length=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
self.thumbnail_length = thumbnail_length
# The below properties exist to maintain compatibility with third-party modules.
@property
def thumbnail_width(self):
if not self.thumbnail:
return None
return self.thumbnail.width
@property
def thumbnail_height(self):
if not self.thumbnail:
return None
return self.thumbnail.height
@property
def thumbnail_method(self):
if not self.thumbnail:
return None
return self.thumbnail.method
@property
def thumbnail_type(self):
if not self.thumbnail:
return None
return self.thumbnail.type
@property
def thumbnail_length(self):
if not self.thumbnail:
return None
return self.thumbnail.length
def get_filename_from_headers(headers: Dict[bytes, List[bytes]]) -> Optional[str]:

40
synapse/rest/media/v1/media_repository.py
View File

@ -42,6 +42,7 @@ from synapse.util.stringutils import random_string
from ._base import (
FileInfo,
Responder,
ThumbnailInfo,
get_filename_from_headers,
respond_404,
respond_with_responder,
@ -210,7 +211,7 @@ class MediaRepository:
upload_name = name if name else media_info["upload_name"]
url_cache = media_info["url_cache"]
file_info = FileInfo(None, media_id, url_cache=url_cache)
file_info = FileInfo(None, media_id, url_cache=bool(url_cache))
responder = await self.media_storage.fetch_media(file_info)
await respond_with_responder(
@ -514,7 +515,7 @@ class MediaRepository:
t_height: int,
t_method: str,
t_type: str,
url_cache: Optional[str],
url_cache: bool,
) -> Optional[str]:
input_path = await self.media_storage.ensure_media_is_in_local_cache(
FileInfo(None, media_id, url_cache=url_cache)
@ -548,11 +549,12 @@ class MediaRepository:
server_name=None,
file_id=media_id,
url_cache=url_cache,
thumbnail=True,
thumbnail_width=t_width,
thumbnail_height=t_height,
thumbnail_method=t_method,
thumbnail_type=t_type,
thumbnail=ThumbnailInfo(
width=t_width,
height=t_height,
method=t_method,
type=t_type,
),
)
output_path = await self.media_storage.store_file(
@ -585,7 +587,7 @@ class MediaRepository:
t_type: str,
) -> Optional[str]:
input_path = await self.media_storage.ensure_media_is_in_local_cache(
FileInfo(server_name, file_id, url_cache=False)
FileInfo(server_name, file_id)
)
try:
@ -616,11 +618,12 @@ class MediaRepository:
file_info = FileInfo(
server_name=server_name,
file_id=file_id,
thumbnail=True,
thumbnail_width=t_width,
thumbnail_height=t_height,
thumbnail_method=t_method,
thumbnail_type=t_type,
thumbnail=ThumbnailInfo(
width=t_width,
height=t_height,
method=t_method,
type=t_type,
),
)
output_path = await self.media_storage.store_file(
@ -742,12 +745,13 @@ class MediaRepository:
file_info = FileInfo(
server_name=server_name,
file_id=file_id,
thumbnail=True,
thumbnail_width=t_width,
thumbnail_height=t_height,
thumbnail_method=t_method,
thumbnail_type=t_type,
url_cache=url_cache,
thumbnail=ThumbnailInfo(
width=t_width,
height=t_height,
method=t_method,
type=t_type,
),
)
with self.media_storage.store_into_file(file_info) as (f, fname, finish):

36
synapse/rest/media/v1/media_storage.py
View File

@ -176,9 +176,9 @@ class MediaStorage:
self.filepaths.remote_media_thumbnail_rel_legacy(
server_name=file_info.server_name,
file_id=file_info.file_id,
width=file_info.thumbnail_width,
height=file_info.thumbnail_height,
content_type=file_info.thumbnail_type,
width=file_info.thumbnail.width,
height=file_info.thumbnail.height,
content_type=file_info.thumbnail.type,
)
)
@ -220,9 +220,9 @@ class MediaStorage:
legacy_path = self.filepaths.remote_media_thumbnail_rel_legacy(
server_name=file_info.server_name,
file_id=file_info.file_id,
width=file_info.thumbnail_width,
height=file_info.thumbnail_height,
content_type=file_info.thumbnail_type,
width=file_info.thumbnail.width,
height=file_info.thumbnail.height,
content_type=file_info.thumbnail.type,
)
legacy_local_path = os.path.join(self.local_media_directory, legacy_path)
if os.path.exists(legacy_local_path):
@ -255,10 +255,10 @@ class MediaStorage:
if file_info.thumbnail:
return self.filepaths.url_cache_thumbnail_rel(
media_id=file_info.file_id,
width=file_info.thumbnail_width,
height=file_info.thumbnail_height,
content_type=file_info.thumbnail_type,
method=file_info.thumbnail_method,
width=file_info.thumbnail.width,
height=file_info.thumbnail.height,
content_type=file_info.thumbnail.type,
method=file_info.thumbnail.method,
)
return self.filepaths.url_cache_filepath_rel(file_info.file_id)
@ -267,10 +267,10 @@ class MediaStorage:
return self.filepaths.remote_media_thumbnail_rel(
server_name=file_info.server_name,
file_id=file_info.file_id,
width=file_info.thumbnail_width,
height=file_info.thumbnail_height,
content_type=file_info.thumbnail_type,
method=file_info.thumbnail_method,
width=file_info.thumbnail.width,
height=file_info.thumbnail.height,
content_type=file_info.thumbnail.type,
method=file_info.thumbnail.method,
)
return self.filepaths.remote_media_filepath_rel(
file_info.server_name, file_info.file_id
@ -279,10 +279,10 @@ class MediaStorage:
if file_info.thumbnail:
return self.filepaths.local_media_thumbnail_rel(
media_id=file_info.file_id,
width=file_info.thumbnail_width,
height=file_info.thumbnail_height,
content_type=file_info.thumbnail_type,
method=file_info.thumbnail_method,
width=file_info.thumbnail.width,
height=file_info.thumbnail.height,
content_type=file_info.thumbnail.type,
method=file_info.thumbnail.method,
)
return self.filepaths.local_media_filepath_rel(file_info.file_id)

77
synapse/rest/media/v1/thumbnail_resource.py
View File

@ -26,6 +26,7 @@ from synapse.rest.media.v1.media_storage import MediaStorage
from ._base import (
FileInfo,
ThumbnailInfo,
parse_media_id,
respond_404,
respond_with_file,
@ -114,7 +115,7 @@ class ThumbnailResource(DirectServeJsonResource):
thumbnail_infos,
media_id,
media_id,
url_cache=media_info["url_cache"],
url_cache=bool(media_info["url_cache"]),
server_name=None,
)
@ -149,11 +150,12 @@ class ThumbnailResource(DirectServeJsonResource):
server_name=None,
file_id=media_id,
url_cache=media_info["url_cache"],
thumbnail=True,
thumbnail_width=info["thumbnail_width"],
thumbnail_height=info["thumbnail_height"],
thumbnail_type=info["thumbnail_type"],
thumbnail_method=info["thumbnail_method"],
thumbnail=ThumbnailInfo(
width=info["thumbnail_width"],
height=info["thumbnail_height"],
type=info["thumbnail_type"],
method=info["thumbnail_method"],
),
)
t_type = file_info.thumbnail_type
@ -173,7 +175,7 @@ class ThumbnailResource(DirectServeJsonResource):
desired_height,
desired_method,
desired_type,
url_cache=media_info["url_cache"],
url_cache=bool(media_info["url_cache"]),
)
if file_path:
@ -210,11 +212,12 @@ class ThumbnailResource(DirectServeJsonResource):
file_info = FileInfo(
server_name=server_name,
file_id=media_info["filesystem_id"],
thumbnail=True,
thumbnail_width=info["thumbnail_width"],
thumbnail_height=info["thumbnail_height"],
thumbnail_type=info["thumbnail_type"],
thumbnail_method=info["thumbnail_method"],
thumbnail=ThumbnailInfo(
width=info["thumbnail_width"],
height=info["thumbnail_height"],
type=info["thumbnail_type"],
method=info["thumbnail_method"],
),
)
t_type = file_info.thumbnail_type
@ -271,7 +274,7 @@ class ThumbnailResource(DirectServeJsonResource):
thumbnail_infos,
media_id,
media_info["filesystem_id"],
url_cache=None,
url_cache=False,
server_name=server_name,
)
@ -285,7 +288,7 @@ class ThumbnailResource(DirectServeJsonResource):
thumbnail_infos: List[Dict[str, Any]],
media_id: str,
file_id: str,
url_cache: Optional[str] = None,
url_cache: bool,
server_name: Optional[str] = None,
) -> None:
"""
@ -299,7 +302,7 @@ class ThumbnailResource(DirectServeJsonResource):
desired_type: The desired content-type of the thumbnail.
thumbnail_infos: A list of dictionaries of candidate thumbnails.
file_id: The ID of the media that a thumbnail is being requested for.
url_cache: The URL cache value.
url_cache: True if this is from a URL cache.
server_name: The server name, if this is a remote thumbnail.
"""
if thumbnail_infos:
@ -318,13 +321,16 @@ class ThumbnailResource(DirectServeJsonResource):
respond_404(request)
return
# The thumbnail property must exist.
assert file_info.thumbnail is not None
responder = await self.media_storage.fetch_media(file_info)
if responder:
await respond_with_responder(
request,
responder,
file_info.thumbnail_type,
file_info.thumbnail_length,
file_info.thumbnail.type,
file_info.thumbnail.length,
)
return
@ -351,18 +357,18 @@ class ThumbnailResource(DirectServeJsonResource):
server_name,
file_id=file_id,
media_id=media_id,
t_width=file_info.thumbnail_width,
t_height=file_info.thumbnail_height,
t_method=file_info.thumbnail_method,
t_type=file_info.thumbnail_type,
t_width=file_info.thumbnail.width,
t_height=file_info.thumbnail.height,
t_method=file_info.thumbnail.method,
t_type=file_info.thumbnail.type,
)
else:
await self.media_repo.generate_local_exact_thumbnail(
media_id=media_id,
t_width=file_info.thumbnail_width,
t_height=file_info.thumbnail_height,
t_method=file_info.thumbnail_method,
t_type=file_info.thumbnail_type,
t_width=file_info.thumbnail.width,
t_height=file_info.thumbnail.height,
t_method=file_info.thumbnail.method,
t_type=file_info.thumbnail.type,
url_cache=url_cache,
)
@ -370,8 +376,8 @@ class ThumbnailResource(DirectServeJsonResource):
await respond_with_responder(
request,
responder,
file_info.thumbnail_type,
file_info.thumbnail_length,
file_info.thumbnail.type,
file_info.thumbnail.length,
)
else:
logger.info("Failed to find any generated thumbnails")
@ -385,7 +391,7 @@ class ThumbnailResource(DirectServeJsonResource):
desired_type: str,
thumbnail_infos: List[Dict[str, Any]],
file_id: str,
url_cache: Optional[str],
url_cache: bool,
server_name: Optional[str],
) -> Optional[FileInfo]:
"""
@ -398,7 +404,7 @@ class ThumbnailResource(DirectServeJsonResource):
desired_type: The desired content-type of the thumbnail.
thumbnail_infos: A list of dictionaries of candidate thumbnails.
file_id: The ID of the media that a thumbnail is being requested for.
url_cache: The URL cache value.
url_cache: True if this is from a URL cache.
server_name: The server name, if this is a remote thumbnail.
Returns:
@ -495,12 +501,13 @@ class ThumbnailResource(DirectServeJsonResource):
file_id=file_id,
url_cache=url_cache,
server_name=server_name,
thumbnail=True,
thumbnail_width=thumbnail_info["thumbnail_width"],
thumbnail_height=thumbnail_info["thumbnail_height"],
thumbnail_type=thumbnail_info["thumbnail_type"],
thumbnail_method=thumbnail_info["thumbnail_method"],
thumbnail_length=thumbnail_info["thumbnail_length"],
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"],
),
)
# No matching thumbnail was found.