diff options
Diffstat (limited to 'synapse/rest')
| -rw-r--r-- | synapse/rest/__init__.py | 2 | ||||
| -rw-r--r-- | synapse/rest/client/v1/directory.py | 37 | ||||
| -rw-r--r-- | synapse/rest/client/v2_alpha/auth.py | 2 | ||||
| -rw-r--r-- | synapse/rest/client/v2_alpha/room_keys.py | 372 | ||||
| -rw-r--r-- | synapse/rest/media/v1/media_repository.py | 24 | ||||
| -rw-r--r-- | synapse/rest/media/v1/media_storage.py | 8 | ||||
| -rw-r--r-- | synapse/rest/media/v1/preview_url_resource.py | 9 | ||||
| -rw-r--r-- | synapse/rest/media/v1/storage_provider.py | 6 |
8 files changed, 409 insertions, 51 deletions
diff --git a/synapse/rest/__init__.py b/synapse/rest/__init__.py index 3418f06fd6..4856822a5d 100644 --- a/synapse/rest/__init__.py +++ b/synapse/rest/__init__.py @@ -46,6 +46,7 @@ from synapse.rest.client.v2_alpha import ( receipts, register, report_event, + room_keys, sendtodevice, sync, tags, @@ -102,6 +103,7 @@ class ClientRestResource(JsonResource): auth.register_servlets(hs, client_resource) receipts.register_servlets(hs, client_resource) read_marker.register_servlets(hs, client_resource) + room_keys.register_servlets(hs, client_resource) keys.register_servlets(hs, client_resource) tokenrefresh.register_servlets(hs, client_resource) tags.register_servlets(hs, client_resource) diff --git a/synapse/rest/client/v1/directory.py b/synapse/rest/client/v1/directory.py index 97733f3026..0220acf644 100644 --- a/synapse/rest/client/v1/directory.py +++ b/synapse/rest/client/v1/directory.py @@ -74,38 +74,11 @@ class ClientDirectoryServer(ClientV1RestServlet): if room is None: raise SynapseError(400, "Room does not exist") - dir_handler = self.handlers.directory_handler + requester = yield self.auth.get_user_by_req(request) - try: - # try to auth as a user - requester = yield self.auth.get_user_by_req(request) - try: - user_id = requester.user.to_string() - yield dir_handler.create_association( - user_id, room_alias, room_id, servers - ) - yield dir_handler.send_room_alias_update_event( - requester, - user_id, - room_id - ) - except SynapseError as e: - raise e - except Exception: - logger.exception("Failed to create association") - raise - except AuthError: - # try to auth as an application service - service = yield self.auth.get_appservice_by_req(request) - yield dir_handler.create_appservice_association( - service, room_alias, room_id, servers - ) - logger.info( - "Application service at %s created alias %s pointing to %s", - service.url, - room_alias.to_string(), - room_id - ) + yield self.handlers.directory_handler.create_association( + requester, room_alias, room_id, servers + ) defer.returnValue((200, {})) @@ -135,7 +108,7 @@ class ClientDirectoryServer(ClientV1RestServlet): room_alias = RoomAlias.from_string(room_alias) yield dir_handler.delete_association( - requester, user.to_string(), room_alias + requester, room_alias ) logger.info( diff --git a/synapse/rest/client/v2_alpha/auth.py b/synapse/rest/client/v2_alpha/auth.py index bd8b5f4afa..693b303881 100644 --- a/synapse/rest/client/v2_alpha/auth.py +++ b/synapse/rest/client/v2_alpha/auth.py @@ -99,7 +99,7 @@ class AuthRestServlet(RestServlet): cannot be handled in the normal flow (with requests to the same endpoint). Current use is for web fallback auth. """ - PATTERNS = client_v2_patterns("/auth/(?P<stagetype>[\w\.]*)/fallback/web") + PATTERNS = client_v2_patterns(r"/auth/(?P<stagetype>[\w\.]*)/fallback/web") def __init__(self, hs): super(AuthRestServlet, self).__init__() diff --git a/synapse/rest/client/v2_alpha/room_keys.py b/synapse/rest/client/v2_alpha/room_keys.py new file mode 100644 index 0000000000..45b5817d8b --- /dev/null +++ b/synapse/rest/client/v2_alpha/room_keys.py @@ -0,0 +1,372 @@ +# -*- coding: utf-8 -*- +# Copyright 2017, 2018 New Vector Ltd +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import logging + +from twisted.internet import defer + +from synapse.api.errors import Codes, SynapseError +from synapse.http.servlet import ( + RestServlet, + parse_json_object_from_request, + parse_string, +) + +from ._base import client_v2_patterns + +logger = logging.getLogger(__name__) + + +class RoomKeysServlet(RestServlet): + PATTERNS = client_v2_patterns( + "/room_keys/keys(/(?P<room_id>[^/]+))?(/(?P<session_id>[^/]+))?$" + ) + + def __init__(self, hs): + """ + Args: + hs (synapse.server.HomeServer): server + """ + super(RoomKeysServlet, self).__init__() + self.auth = hs.get_auth() + self.e2e_room_keys_handler = hs.get_e2e_room_keys_handler() + + @defer.inlineCallbacks + def on_PUT(self, request, room_id, session_id): + """ + Uploads one or more encrypted E2E room keys for backup purposes. + room_id: the ID of the room the keys are for (optional) + session_id: the ID for the E2E room keys for the room (optional) + version: the version of the user's backup which this data is for. + the version must already have been created via the /room_keys/version API. + + Each session has: + * first_message_index: a numeric index indicating the oldest message + encrypted by this session. + * forwarded_count: how many times the uploading client claims this key + has been shared (forwarded) + * is_verified: whether the client that uploaded the keys claims they + were sent by a device which they've verified + * session_data: base64-encrypted data describing the session. + + Returns 200 OK on success with body {} + Returns 403 Forbidden if the version in question is not the most recently + created version (i.e. if this is an old client trying to write to a stale backup) + Returns 404 Not Found if the version in question doesn't exist + + The API is designed to be otherwise agnostic to the room_key encryption + algorithm being used. Sessions are merged with existing ones in the + backup using the heuristics: + * is_verified sessions always win over unverified sessions + * older first_message_index always win over newer sessions + * lower forwarded_count always wins over higher forwarded_count + + We trust the clients not to lie and corrupt their own backups. + It also means that if your access_token is stolen, the attacker could + delete your backup. + + POST /room_keys/keys/!abc:matrix.org/c0ff33?version=1 HTTP/1.1 + Content-Type: application/json + + { + "first_message_index": 1, + "forwarded_count": 1, + "is_verified": false, + "session_data": "SSBBTSBBIEZJU0gK" + } + + Or... + + POST /room_keys/keys/!abc:matrix.org?version=1 HTTP/1.1 + Content-Type: application/json + + { + "sessions": { + "c0ff33": { + "first_message_index": 1, + "forwarded_count": 1, + "is_verified": false, + "session_data": "SSBBTSBBIEZJU0gK" + } + } + } + + Or... + + POST /room_keys/keys?version=1 HTTP/1.1 + Content-Type: application/json + + { + "rooms": { + "!abc:matrix.org": { + "sessions": { + "c0ff33": { + "first_message_index": 1, + "forwarded_count": 1, + "is_verified": false, + "session_data": "SSBBTSBBIEZJU0gK" + } + } + } + } + } + """ + requester = yield self.auth.get_user_by_req(request, allow_guest=False) + user_id = requester.user.to_string() + body = parse_json_object_from_request(request) + version = parse_string(request, "version") + + if session_id: + body = { + "sessions": { + session_id: body + } + } + + if room_id: + body = { + "rooms": { + room_id: body + } + } + + yield self.e2e_room_keys_handler.upload_room_keys( + user_id, version, body + ) + defer.returnValue((200, {})) + + @defer.inlineCallbacks + def on_GET(self, request, room_id, session_id): + """ + Retrieves one or more encrypted E2E room keys for backup purposes. + Symmetric with the PUT version of the API. + + room_id: the ID of the room to retrieve the keys for (optional) + session_id: the ID for the E2E room keys to retrieve the keys for (optional) + version: the version of the user's backup which this data is for. + the version must already have been created via the /change_secret API. + + Returns as follows: + + GET /room_keys/keys/!abc:matrix.org/c0ff33?version=1 HTTP/1.1 + { + "first_message_index": 1, + "forwarded_count": 1, + "is_verified": false, + "session_data": "SSBBTSBBIEZJU0gK" + } + + Or... + + GET /room_keys/keys/!abc:matrix.org?version=1 HTTP/1.1 + { + "sessions": { + "c0ff33": { + "first_message_index": 1, + "forwarded_count": 1, + "is_verified": false, + "session_data": "SSBBTSBBIEZJU0gK" + } + } + } + + Or... + + GET /room_keys/keys?version=1 HTTP/1.1 + { + "rooms": { + "!abc:matrix.org": { + "sessions": { + "c0ff33": { + "first_message_index": 1, + "forwarded_count": 1, + "is_verified": false, + "session_data": "SSBBTSBBIEZJU0gK" + } + } + } + } + } + """ + requester = yield self.auth.get_user_by_req(request, allow_guest=False) + user_id = requester.user.to_string() + version = parse_string(request, "version") + + room_keys = yield self.e2e_room_keys_handler.get_room_keys( + user_id, version, room_id, session_id + ) + + if session_id: + room_keys = room_keys['rooms'][room_id]['sessions'][session_id] + elif room_id: + room_keys = room_keys['rooms'][room_id] + + defer.returnValue((200, room_keys)) + + @defer.inlineCallbacks + def on_DELETE(self, request, room_id, session_id): + """ + Deletes one or more encrypted E2E room keys for a user for backup purposes. + + DELETE /room_keys/keys/!abc:matrix.org/c0ff33?version=1 + HTTP/1.1 200 OK + {} + + room_id: the ID of the room whose keys to delete (optional) + session_id: the ID for the E2E session to delete (optional) + version: the version of the user's backup which this data is for. + the version must already have been created via the /change_secret API. + """ + + requester = yield self.auth.get_user_by_req(request, allow_guest=False) + user_id = requester.user.to_string() + version = parse_string(request, "version") + + yield self.e2e_room_keys_handler.delete_room_keys( + user_id, version, room_id, session_id + ) + defer.returnValue((200, {})) + + +class RoomKeysNewVersionServlet(RestServlet): + PATTERNS = client_v2_patterns( + "/room_keys/version$" + ) + + def __init__(self, hs): + """ + Args: + hs (synapse.server.HomeServer): server + """ + super(RoomKeysNewVersionServlet, self).__init__() + self.auth = hs.get_auth() + self.e2e_room_keys_handler = hs.get_e2e_room_keys_handler() + + @defer.inlineCallbacks + def on_POST(self, request): + """ + Create a new backup version for this user's room_keys with the given + info. The version is allocated by the server and returned to the user + in the response. This API is intended to be used whenever the user + changes the encryption key for their backups, ensuring that backups + encrypted with different keys don't collide. + + It takes out an exclusive lock on this user's room_key backups, to ensure + clients only upload to the current backup. + + The algorithm passed in the version info is a reverse-DNS namespaced + identifier to describe the format of the encrypted backupped keys. + + The auth_data is { user_id: "user_id", nonce: <random string> } + encrypted using the algorithm and current encryption key described above. + + POST /room_keys/version + Content-Type: application/json + { + "algorithm": "m.megolm_backup.v1", + "auth_data": "dGhpcyBzaG91bGQgYWN0dWFsbHkgYmUgZW5jcnlwdGVkIGpzb24K" + } + + HTTP/1.1 200 OK + Content-Type: application/json + { + "version": 12345 + } + """ + requester = yield self.auth.get_user_by_req(request, allow_guest=False) + user_id = requester.user.to_string() + info = parse_json_object_from_request(request) + + new_version = yield self.e2e_room_keys_handler.create_version( + user_id, info + ) + defer.returnValue((200, {"version": new_version})) + + # we deliberately don't have a PUT /version, as these things really should + # be immutable to avoid people footgunning + + +class RoomKeysVersionServlet(RestServlet): + PATTERNS = client_v2_patterns( + "/room_keys/version(/(?P<version>[^/]+))?$" + ) + + def __init__(self, hs): + """ + Args: + hs (synapse.server.HomeServer): server + """ + super(RoomKeysVersionServlet, self).__init__() + self.auth = hs.get_auth() + self.e2e_room_keys_handler = hs.get_e2e_room_keys_handler() + + @defer.inlineCallbacks + def on_GET(self, request, version): + """ + Retrieve the version information about a given version of the user's + room_keys backup. If the version part is missing, returns info about the + most current backup version (if any) + + It takes out an exclusive lock on this user's room_key backups, to ensure + clients only upload to the current backup. + + Returns 404 if the given version does not exist. + + GET /room_keys/version/12345 HTTP/1.1 + { + "version": "12345", + "algorithm": "m.megolm_backup.v1", + "auth_data": "dGhpcyBzaG91bGQgYWN0dWFsbHkgYmUgZW5jcnlwdGVkIGpzb24K" + } + """ + requester = yield self.auth.get_user_by_req(request, allow_guest=False) + user_id = requester.user.to_string() + + try: + info = yield self.e2e_room_keys_handler.get_version_info( + user_id, version + ) + except SynapseError as e: + if e.code == 404: + raise SynapseError(404, "No backup found", Codes.NOT_FOUND) + defer.returnValue((200, info)) + + @defer.inlineCallbacks + def on_DELETE(self, request, version): + """ + Delete the information about a given version of the user's + room_keys backup. If the version part is missing, deletes the most + current backup version (if any). Doesn't delete the actual room data. + + DELETE /room_keys/version/12345 HTTP/1.1 + HTTP/1.1 200 OK + {} + """ + if version is None: + raise SynapseError(400, "No version specified to delete", Codes.NOT_FOUND) + + requester = yield self.auth.get_user_by_req(request, allow_guest=False) + user_id = requester.user.to_string() + + yield self.e2e_room_keys_handler.delete_version( + user_id, version + ) + defer.returnValue((200, {})) + + +def register_servlets(hs, http_server): + RoomKeysServlet(hs).register(http_server) + RoomKeysVersionServlet(hs).register(http_server) + RoomKeysNewVersionServlet(hs).register(http_server) diff --git a/synapse/rest/media/v1/media_repository.py b/synapse/rest/media/v1/media_repository.py index a828ff4438..08b1867fab 100644 --- a/synapse/rest/media/v1/media_repository.py +++ b/synapse/rest/media/v1/media_repository.py @@ -25,7 +25,7 @@ from six.moves.urllib import parse as urlparse import twisted.internet.error import twisted.web.http -from twisted.internet import defer, threads +from twisted.internet import defer from twisted.web.resource import Resource from synapse.api.errors import ( @@ -36,8 +36,8 @@ from synapse.api.errors import ( ) from synapse.http.matrixfederationclient import MatrixFederationHttpClient from synapse.metrics.background_process_metrics import run_as_background_process +from synapse.util import logcontext from synapse.util.async_helpers import Linearizer -from synapse.util.logcontext import make_deferred_yieldable from synapse.util.retryutils import NotRetryingDestination from synapse.util.stringutils import is_ascii, random_string @@ -492,10 +492,11 @@ class MediaRepository(object): )) thumbnailer = Thumbnailer(input_path) - t_byte_source = yield make_deferred_yieldable(threads.deferToThread( + t_byte_source = yield logcontext.defer_to_thread( + self.hs.get_reactor(), self._generate_thumbnail, thumbnailer, t_width, t_height, t_method, t_type - )) + ) if t_byte_source: try: @@ -534,10 +535,11 @@ class MediaRepository(object): )) thumbnailer = Thumbnailer(input_path) - t_byte_source = yield make_deferred_yieldable(threads.deferToThread( + t_byte_source = yield logcontext.defer_to_thread( + self.hs.get_reactor(), self._generate_thumbnail, thumbnailer, t_width, t_height, t_method, t_type - )) + ) if t_byte_source: try: @@ -620,15 +622,17 @@ class MediaRepository(object): for (t_width, t_height, t_type), t_method in iteritems(thumbnails): # Generate the thumbnail if t_method == "crop": - t_byte_source = yield make_deferred_yieldable(threads.deferToThread( + t_byte_source = yield logcontext.defer_to_thread( + self.hs.get_reactor(), thumbnailer.crop, t_width, t_height, t_type, - )) + ) elif t_method == "scale": - t_byte_source = yield make_deferred_yieldable(threads.deferToThread( + t_byte_source = yield logcontext.defer_to_thread( + self.hs.get_reactor(), thumbnailer.scale, t_width, t_height, t_type, - )) + ) else: logger.error("Unrecognized method: %r", t_method) continue diff --git a/synapse/rest/media/v1/media_storage.py b/synapse/rest/media/v1/media_storage.py index a6189224ee..896078fe76 100644 --- a/synapse/rest/media/v1/media_storage.py +++ b/synapse/rest/media/v1/media_storage.py @@ -21,9 +21,10 @@ import sys import six -from twisted.internet import defer, threads +from twisted.internet import defer from twisted.protocols.basic import FileSender +from synapse.util import logcontext from synapse.util.file_consumer import BackgroundFileConsumer from synapse.util.logcontext import make_deferred_yieldable @@ -64,9 +65,10 @@ class MediaStorage(object): with self.store_into_file(file_info) as (f, fname, finish_cb): # Write to the main repository - yield make_deferred_yieldable(threads.deferToThread( + yield logcontext.defer_to_thread( + self.hs.get_reactor(), _write_file_synchronously, source, f, - )) + ) yield finish_cb() defer.returnValue(fname) diff --git a/synapse/rest/media/v1/preview_url_resource.py b/synapse/rest/media/v1/preview_url_resource.py index af01040a38..1a7bfd6b56 100644 --- a/synapse/rest/media/v1/preview_url_resource.py +++ b/synapse/rest/media/v1/preview_url_resource.py @@ -596,10 +596,13 @@ def _iterate_over_text(tree, *tags_to_ignore): # to be returned. elements = iter([tree]) while True: - el = next(elements) + el = next(elements, None) + if el is None: + return + if isinstance(el, string_types): yield el - elif el is not None and el.tag not in tags_to_ignore: + elif el.tag not in tags_to_ignore: # el.text is the text before the first child, so we can immediately # return it if the text exists. if el.text: @@ -671,7 +674,7 @@ def summarize_paragraphs(text_nodes, min_size=200, max_size=500): # This splits the paragraph into words, but keeping the # (preceeding) whitespace intact so we can easily concat # words back together. - for match in re.finditer("\s*\S+", description): + for match in re.finditer(r"\s*\S+", description): word = match.group() # Keep adding words while the total length is less than diff --git a/synapse/rest/media/v1/storage_provider.py b/synapse/rest/media/v1/storage_provider.py index 7b9f8b4d79..5aa03031f6 100644 --- a/synapse/rest/media/v1/storage_provider.py +++ b/synapse/rest/media/v1/storage_provider.py @@ -17,9 +17,10 @@ import logging import os import shutil -from twisted.internet import defer, threads +from twisted.internet import defer from synapse.config._base import Config +from synapse.util import logcontext from synapse.util.logcontext import run_in_background from .media_storage import FileResponder @@ -120,7 +121,8 @@ class FileStorageProviderBackend(StorageProvider): if not os.path.exists(dirname): os.makedirs(dirname) - return threads.deferToThread( + return logcontext.defer_to_thread( + self.hs.get_reactor(), shutil.copyfile, primary_fname, backup_fname, ) |