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Split out BaseMediaResource into MediaRepository

Browse Source 
This is so that a single MediaRepository can be shared across all
resources, rather than having a "copy" per resource.

In particular this allows us to guard against both the thumbnail and
download resource triggering a download of remote content at the same
time.
This commit is contained in:
Erik Johnston 2016-04-19 11:24:59 +01:00
parent 481119f7d6
commit 43f0941e8f
6 changed files with 180 additions and 138 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

160
synapse/rest/media/v1/base_resource.py
View File

@ -23,7 +23,6 @@ from synapse.api.errors import (
)
from twisted.internet import defer, threads
from twisted.web.resource import Resource
from twisted.protocols.basic import FileSender
from synapse.util.async import ObservableDeferred
@ -60,11 +59,66 @@ def parse_media_id(request):
)
class BaseMediaResource(Resource):
isLeaf = True
def respond_404(request):
respond_with_json(
request, 404,
cs_error(
"Not found %r" % (request.postpath,),
code=Codes.NOT_FOUND,
),
send_cors=True
)
@defer.inlineCallbacks
def respond_with_file(request, media_type, file_path,
file_size=None, upload_name=None):
logger.debug("Responding with %r", file_path)
if os.path.isfile(file_path):
request.setHeader(b"Content-Type", media_type.encode("UTF-8"))
if upload_name:
if is_ascii(upload_name):
request.setHeader(
b"Content-Disposition",
b"inline; filename=%s" % (
urllib.quote(upload_name.encode("utf-8")),
),
)
else:
request.setHeader(
b"Content-Disposition",
b"inline; filename*=utf-8''%s" % (
urllib.quote(upload_name.encode("utf-8")),
),
)
# cache for at least a day.
# XXX: we might want to turn this off for data we don't want to
# recommend caching as it's sensitive or private - or at least
# select private. don't bother setting Expires as all our
# clients are smart enough to be happy with Cache-Control
request.setHeader(
b"Cache-Control", b"public,max-age=86400,s-maxage=86400"
)
if file_size is None:
stat = os.stat(file_path)
file_size = stat.st_size
request.setHeader(
b"Content-Length", b"%d" % (file_size,)
)
with open(file_path, "rb") as f:
yield FileSender().beginFileTransfer(f, request)
finish_request(request)
else:
respond_404(request)
class MediaRepository(object):
def __init__(self, hs, filepaths):
Resource.__init__(self)
self.auth = hs.get_auth()
self.client = MatrixFederationHttpClient(hs)
self.clock = hs.get_clock()
@ -72,30 +126,48 @@ class BaseMediaResource(Resource):
self.store = hs.get_datastore()
self.max_upload_size = hs.config.max_upload_size
self.max_image_pixels = hs.config.max_image_pixels
self.max_spider_size = hs.config.max_spider_size
self.filepaths = filepaths
self.version_string = hs.version_string
self.downloads = {}
self.dynamic_thumbnails = hs.config.dynamic_thumbnails
self.thumbnail_requirements = hs.config.thumbnail_requirements
def _respond_404(self, request):
respond_with_json(
request, 404,
cs_error(
"Not found %r" % (request.postpath,),
code=Codes.NOT_FOUND,
),
send_cors=True
)
@staticmethod
def _makedirs(filepath):
dirname = os.path.dirname(filepath)
if not os.path.exists(dirname):
os.makedirs(dirname)
def _get_remote_media(self, server_name, media_id):
@defer.inlineCallbacks
def create_content(self, media_type, upload_name, content, content_length,
auth_user):
media_id = random_string(24)
fname = self.filepaths.local_media_filepath(media_id)
self._makedirs(fname)
# This shouldn't block for very long because the content will have
# already been uploaded at this point.
with open(fname, "wb") as f:
f.write(content)
yield self.store.store_local_media(
media_id=media_id,
media_type=media_type,
time_now_ms=self.clock.time_msec(),
upload_name=upload_name,
media_length=content_length,
user_id=auth_user,
)
media_info = {
"media_type": media_type,
"media_length": content_length,
}
yield self._generate_local_thumbnails(media_id, media_info)
defer.returnValue("mxc://%s/%s" % (self.server_name, media_id))
def get_remote_media(self, server_name, media_id):
key = (server_name, media_id)
download = self.downloads.get(key)
if download is None:
@ -197,52 +269,6 @@ class BaseMediaResource(Resource):
defer.returnValue(media_info)
@defer.inlineCallbacks
def _respond_with_file(self, request, media_type, file_path,
file_size=None, upload_name=None):
logger.debug("Responding with %r", file_path)
if os.path.isfile(file_path):
request.setHeader(b"Content-Type", media_type.encode("UTF-8"))
if upload_name:
if is_ascii(upload_name):
request.setHeader(
b"Content-Disposition",
b"inline; filename=%s" % (
urllib.quote(upload_name.encode("utf-8")),
),
)
else:
request.setHeader(
b"Content-Disposition",
b"inline; filename*=utf-8''%s" % (
urllib.quote(upload_name.encode("utf-8")),
),
)
# cache for at least a day.
# XXX: we might want to turn this off for data we don't want to
# recommend caching as it's sensitive or private - or at least
# select private. don't bother setting Expires as all our
# clients are smart enough to be happy with Cache-Control
request.setHeader(
b"Cache-Control", b"public,max-age=86400,s-maxage=86400"
)
if file_size is None:
stat = os.stat(file_path)
file_size = stat.st_size
request.setHeader(
b"Content-Length", b"%d" % (file_size,)
)
with open(file_path, "rb") as f:
yield FileSender().beginFileTransfer(f, request)
finish_request(request)
else:
self._respond_404(request)
def _get_thumbnail_requirements(self, media_type):
return self.thumbnail_requirements.get(media_type, ())
@ -269,8 +295,8 @@ class BaseMediaResource(Resource):
return t_len
@defer.inlineCallbacks
def _generate_local_exact_thumbnail(self, media_id, t_width, t_height,
t_method, t_type):
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)
t_path = self.filepaths.local_media_thumbnail(
@ -292,8 +318,8 @@ class BaseMediaResource(Resource):
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):
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)
t_path = self.filepaths.remote_media_thumbnail(

24
synapse/rest/media/v1/download_resource.py
View File

@ -13,7 +13,8 @@
# See the License for the specific language governing permissions and
# limitations under the License.
from .base_resource import BaseMediaResource, parse_media_id
from .base_resource import parse_media_id, respond_with_file, respond_404
from twisted.web.resource import Resource
from synapse.http.server import request_handler
from twisted.web.server import NOT_DONE_YET
@ -24,7 +25,18 @@ import logging
logger = logging.getLogger(__name__)
class DownloadResource(BaseMediaResource):
class DownloadResource(Resource):
isLeaf = True
def __init__(self, hs, media_repo):
Resource.__init__(self)
self.filepaths = media_repo.filepaths
self.media_repo = media_repo
self.server_name = hs.hostname
self.store = hs.get_datastore()
self.version_string = hs.version_string
def render_GET(self, request):
self._async_render_GET(request)
return NOT_DONE_YET
@ -44,7 +56,7 @@ class DownloadResource(BaseMediaResource):
def _respond_local_file(self, request, media_id, name):
media_info = yield self.store.get_local_media(media_id)
if not media_info:
self._respond_404(request)
respond_404(request)
return
media_type = media_info["media_type"]
@ -52,14 +64,14 @@ class DownloadResource(BaseMediaResource):
upload_name = name if name else media_info["upload_name"]
file_path = self.filepaths.local_media_filepath(media_id)
yield self._respond_with_file(
yield respond_with_file(
request, media_type, file_path, media_length,
upload_name=upload_name,
)
@defer.inlineCallbacks
def _respond_remote_file(self, request, server_name, media_id, name):
media_info = yield self._get_remote_media(server_name, media_id)
media_info = yield self.media_repo.get_remote_media(server_name, media_id)
media_type = media_info["media_type"]
media_length = media_info["media_length"]
@ -70,7 +82,7 @@ class DownloadResource(BaseMediaResource):
server_name, filesystem_id
)
yield self._respond_with_file(
yield respond_with_file(
request, media_type, file_path, media_length,
upload_name=upload_name,
)

12
synapse/rest/media/v1/media_repository.py
View File

@ -13,6 +13,7 @@
# See the License for the specific language governing permissions and
# limitations under the License.
from .base_resource import MediaRepository
from .upload_resource import UploadResource
from .download_resource import DownloadResource
from .thumbnail_resource import ThumbnailResource
@ -75,9 +76,12 @@ class MediaRepositoryResource(Resource):
def __init__(self, hs):
Resource.__init__(self)
filepaths = MediaFilePaths(hs.config.media_store_path)
self.putChild("upload", UploadResource(hs, filepaths))
self.putChild("download", DownloadResource(hs, filepaths))
self.putChild("thumbnail", ThumbnailResource(hs, filepaths))
media_repo = MediaRepository(hs, filepaths)
self.putChild("upload", UploadResource(hs, media_repo))
self.putChild("download", DownloadResource(hs, media_repo))
self.putChild("thumbnail", ThumbnailResource(hs, media_repo))
self.putChild("identicon", IdenticonResource())
if hs.config.url_preview_enabled:
self.putChild("preview_url", PreviewUrlResource(hs, filepaths))
self.putChild("preview_url", PreviewUrlResource(hs, media_repo))

20
synapse/rest/media/v1/preview_url_resource.py
View File

@ -13,10 +13,9 @@
# See the License for the specific language governing permissions and
# limitations under the License.
from .base_resource import BaseMediaResource
from twisted.web.server import NOT_DONE_YET
from twisted.internet import defer
from twisted.web.resource import Resource
from synapse.api.errors import (
SynapseError, Codes,
@ -41,11 +40,11 @@ import logging
logger = logging.getLogger(__name__)
class PreviewUrlResource(BaseMediaResource):
class PreviewUrlResource(Resource):
isLeaf = True
def __init__(self, hs, filepaths):
BaseMediaResource.__init__(self, hs, filepaths)
def __init__(self, hs, media_repo):
Resource.__init__(self)
self.client = SpiderHttpClient(hs)
if hasattr(hs.config, "url_preview_url_blacklist"):
self.url_preview_url_blacklist = hs.config.url_preview_url_blacklist
@ -61,6 +60,13 @@ class PreviewUrlResource(BaseMediaResource):
self.downloads = {}
self.auth = hs.get_auth()
self.clock = hs.get_clock()
self.version_string = hs.version_string
self.filepaths = media_repo.filepaths
self.max_spider_size = hs.config.max_spider_size
self.server_name = hs.hostname
def render_GET(self, request):
self._async_render_GET(request)
return NOT_DONE_YET
@ -156,7 +162,7 @@ class PreviewUrlResource(BaseMediaResource):
logger.debug("got media_info of '%s'" % media_info)
if self._is_media(media_info['media_type']):
dims = yield self._generate_local_thumbnails(
dims = yield self.media_repo._generate_local_thumbnails(
media_info['filesystem_id'], media_info
)
@ -291,7 +297,7 @@ class PreviewUrlResource(BaseMediaResource):
if self._is_media(image_info['media_type']):
# TODO: make sure we don't choke on white-on-transparent images
dims = yield self._generate_local_thumbnails(
dims = yield self.media_repo._generate_local_thumbnails(
image_info['filesystem_id'], image_info
)
if dims:

51
synapse/rest/media/v1/thumbnail_resource.py
View File

@ -14,7 +14,8 @@
# limitations under the License.
from .base_resource import BaseMediaResource, parse_media_id
from .base_resource import parse_media_id, respond_404, respond_with_file
from twisted.web.resource import Resource
from synapse.http.servlet import parse_string, parse_integer
from synapse.http.server import request_handler
@ -26,9 +27,19 @@ import logging
logger = logging.getLogger(__name__)
class ThumbnailResource(BaseMediaResource):
class ThumbnailResource(Resource):
isLeaf = True
def __init__(self, hs, media_repo):
Resource.__init__(self)
self.store = hs.get_datastore()
self.filepaths = media_repo.filepaths
self.media_repo = media_repo
self.dynamic_thumbnails = hs.config.dynamic_thumbnails
self.server_name = hs.hostname
self.version_string = hs.version_string
def render_GET(self, request):
self._async_render_GET(request)
return NOT_DONE_YET
@ -69,12 +80,12 @@ class ThumbnailResource(BaseMediaResource):
media_info = yield self.store.get_local_media(media_id)
if not media_info:
self._respond_404(request)
respond_404(request)
return
# if media_info["media_type"] == "image/svg+xml":
# file_path = self.filepaths.local_media_filepath(media_id)
# yield self._respond_with_file(request, media_info["media_type"], file_path)
# yield respond_with_file(request, media_info["media_type"], file_path)
# return
thumbnail_infos = yield self.store.get_local_media_thumbnails(media_id)
@ -91,7 +102,7 @@ class ThumbnailResource(BaseMediaResource):
file_path = self.filepaths.local_media_thumbnail(
media_id, t_width, t_height, t_type, t_method,
)
yield self._respond_with_file(request, t_type, file_path)
yield respond_with_file(request, t_type, file_path)
else:
yield self._respond_default_thumbnail(
@ -105,12 +116,12 @@ class ThumbnailResource(BaseMediaResource):
media_info = yield self.store.get_local_media(media_id)
if not media_info:
self._respond_404(request)
respond_404(request)
return
# if media_info["media_type"] == "image/svg+xml":
# file_path = self.filepaths.local_media_filepath(media_id)
# yield self._respond_with_file(request, media_info["media_type"], file_path)
# yield respond_with_file(request, media_info["media_type"], file_path)
# return
thumbnail_infos = yield self.store.get_local_media_thumbnails(media_id)
@ -124,18 +135,18 @@ class ThumbnailResource(BaseMediaResource):
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)
yield 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(
file_path = yield self.media_repo.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)
yield respond_with_file(request, desired_type, file_path)
else:
yield self._respond_default_thumbnail(
request, media_info, desired_width, desired_height,
@ -146,11 +157,11 @@ class ThumbnailResource(BaseMediaResource):
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)
media_info = yield self.media_repo.get_remote_media(server_name, media_id)
# if media_info["media_type"] == "image/svg+xml":
# file_path = self.filepaths.remote_media_filepath(server_name, media_id)
# yield self._respond_with_file(request, media_info["media_type"], file_path)
# yield respond_with_file(request, media_info["media_type"], file_path)
# return
thumbnail_infos = yield self.store.get_remote_media_thumbnails(
@ -170,19 +181,19 @@ class ThumbnailResource(BaseMediaResource):
server_name, file_id, desired_width, desired_height,
desired_type, desired_method,
)
yield self._respond_with_file(request, desired_type, file_path)
yield 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_remote_exact_thumbnail(
file_path = yield self.media_repo.generate_remote_exact_thumbnail(
server_name, file_id, media_id, desired_width,
desired_height, desired_method, desired_type
)
if file_path:
yield self._respond_with_file(request, desired_type, file_path)
yield respond_with_file(request, desired_type, file_path)
else:
yield self._respond_default_thumbnail(
request, media_info, desired_width, desired_height,
@ -194,11 +205,11 @@ class ThumbnailResource(BaseMediaResource):
height, method, m_type):
# TODO: Don't download the whole remote file
# We should proxy the thumbnail from the remote server instead.
media_info = yield self._get_remote_media(server_name, media_id)
media_info = yield self.media_repo.get_remote_media(server_name, media_id)
# if media_info["media_type"] == "image/svg+xml":
# file_path = self.filepaths.remote_media_filepath(server_name, media_id)
# yield self._respond_with_file(request, media_info["media_type"], file_path)
# yield respond_with_file(request, media_info["media_type"], file_path)
# return
thumbnail_infos = yield self.store.get_remote_media_thumbnails(
@ -219,7 +230,7 @@ class ThumbnailResource(BaseMediaResource):
file_path = self.filepaths.remote_media_thumbnail(
server_name, file_id, t_width, t_height, t_type, t_method,
)
yield self._respond_with_file(request, t_type, file_path, t_length)
yield respond_with_file(request, t_type, file_path, t_length)
else:
yield self._respond_default_thumbnail(
request, media_info, width, height, method, m_type,
@ -245,7 +256,7 @@ class ThumbnailResource(BaseMediaResource):
"_default", "_default",
)
if not thumbnail_infos:
self._respond_404(request)
respond_404(request)
return
thumbnail_info = self._select_thumbnail(
@ -261,7 +272,7 @@ class ThumbnailResource(BaseMediaResource):
file_path = self.filepaths.default_thumbnail(
top_level_type, sub_type, t_width, t_height, t_type, t_method,
)
yield self.respond_with_file(request, t_type, file_path, t_length)
yield respond_with_file(request, t_type, file_path, t_length)
def _select_thumbnail(self, desired_width, desired_height, desired_method,
desired_type, thumbnail_infos):

51
synapse/rest/media/v1/upload_resource.py
View File

@ -15,20 +15,33 @@
from synapse.http.server import respond_with_json, request_handler
from synapse.util.stringutils import random_string
from synapse.api.errors import SynapseError
from twisted.web.server import NOT_DONE_YET
from twisted.internet import defer
from .base_resource import BaseMediaResource
from twisted.web.resource import Resource
import logging
logger = logging.getLogger(__name__)
class UploadResource(BaseMediaResource):
class UploadResource(Resource):
isLeaf = True
def __init__(self, hs, media_repo):
Resource.__init__(self)
self.media_repo = media_repo
self.filepaths = media_repo.filepaths
self.store = hs.get_datastore()
self.clock = hs.get_clock()
self.server_name = hs.hostname
self.auth = hs.get_auth()
self.max_upload_size = hs.config.max_upload_size
self.version_string = hs.version_string
def render_POST(self, request):
self._async_render_POST(request)
return NOT_DONE_YET
@ -37,36 +50,6 @@ class UploadResource(BaseMediaResource):
respond_with_json(request, 200, {}, send_cors=True)
return NOT_DONE_YET
@defer.inlineCallbacks
def create_content(self, media_type, upload_name, content, content_length,
auth_user):
media_id = random_string(24)
fname = self.filepaths.local_media_filepath(media_id)
self._makedirs(fname)
# This shouldn't block for very long because the content will have
# already been uploaded at this point.
with open(fname, "wb") as f:
f.write(content)
yield self.store.store_local_media(
media_id=media_id,
media_type=media_type,
time_now_ms=self.clock.time_msec(),
upload_name=upload_name,
media_length=content_length,
user_id=auth_user,
)
media_info = {
"media_type": media_type,
"media_length": content_length,
}
yield self._generate_local_thumbnails(media_id, media_info)
defer.returnValue("mxc://%s/%s" % (self.server_name, media_id))
@request_handler
@defer.inlineCallbacks
def _async_render_POST(self, request):
@ -108,7 +91,7 @@ class UploadResource(BaseMediaResource):
# disposition = headers.getRawHeaders("Content-Disposition")[0]
# TODO(markjh): parse content-dispostion
content_uri = yield self.create_content(
content_uri = yield self.media_repo.create_content(
media_type, upload_name, request.content.read(),
content_length, requester.user
)