diff options
Diffstat (limited to 'synapse/rest/client/v2_alpha/keys.py')
| -rw-r--r-- | synapse/rest/client/v2_alpha/keys.py | 287 |
1 files changed, 287 insertions, 0 deletions
diff --git a/synapse/rest/client/v2_alpha/keys.py b/synapse/rest/client/v2_alpha/keys.py new file mode 100644 index 0000000000..3bb4ad64f3 --- /dev/null +++ b/synapse/rest/client/v2_alpha/keys.py @@ -0,0 +1,287 @@ +# -*- coding: utf-8 -*- +# Copyright 2015 OpenMarket 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. + +from twisted.internet import defer + +from synapse.api.errors import SynapseError +from synapse.http.servlet import RestServlet +from syutil.jsonutil import encode_canonical_json + +from ._base import client_v2_pattern + +import simplejson as json +import logging + +logger = logging.getLogger(__name__) + + +class KeyUploadServlet(RestServlet): + """ + POST /keys/upload/<device_id> HTTP/1.1 + Content-Type: application/json + + { + "device_keys": { + "user_id": "<user_id>", + "device_id": "<device_id>", + "valid_until_ts": <millisecond_timestamp>, + "algorithms": [ + "m.olm.curve25519-aes-sha256", + ] + "keys": { + "<algorithm>:<key_id>": "<key_base64>", + }, + "signatures:" { + "<user_id>/<device_id>" { + "<algorithm>:<key_id>": "<signature_base64>" + } } }, + "one_time_keys": { + "<algorithm>:<key_id>": "<key_base64>" + }, + "one_time_keys_valid_for": <millisecond duration>, + } + """ + PATTERN = client_v2_pattern("/keys/upload/(?P<device_id>[^/]*)") + + def __init__(self, hs): + super(KeyUploadServlet, self).__init__() + self.store = hs.get_datastore() + self.clock = hs.get_clock() + self.auth = hs.get_auth() + + @defer.inlineCallbacks + def on_POST(self, request, device_id): + auth_user, client_info = yield self.auth.get_user_by_req(request) + user_id = auth_user.to_string() + # TODO: Check that the device_id matches that in the authentication + # or derive the device_id from the authentication instead. + try: + body = json.loads(request.content.read()) + except: + raise SynapseError(400, "Invalid key JSON") + time_now = self.clock.time_msec() + + # TODO: Validate the JSON to make sure it has the right keys. + device_keys = body.get("device_keys", None) + if device_keys: + logger.info( + "Updating device_keys for device %r for user %r at %d", + device_id, auth_user, time_now + ) + # TODO: Sign the JSON with the server key + yield self.store.set_e2e_device_keys( + user_id, device_id, time_now, + encode_canonical_json(device_keys) + ) + + one_time_keys = body.get("one_time_keys", None) + one_time_keys_valid_for = body.get("one_time_keys_valid_for", None) + if one_time_keys: + valid_until = int(one_time_keys_valid_for) + time_now + logger.info( + "Adding %d one_time_keys for device %r for user %r at %d" + " valid_until %d", + len(one_time_keys), device_id, user_id, time_now, valid_until + ) + key_list = [] + for key_id, key_json in one_time_keys.items(): + algorithm, key_id = key_id.split(":") + key_list.append(( + algorithm, key_id, encode_canonical_json(key_json) + )) + + yield self.store.add_e2e_one_time_keys( + user_id, device_id, time_now, valid_until, key_list + ) + + result = yield self.store.count_e2e_one_time_keys( + user_id, device_id, time_now + ) + defer.returnValue((200, {"one_time_key_counts": result})) + + @defer.inlineCallbacks + def on_GET(self, request, device_id): + auth_user, client_info = yield self.auth.get_user_by_req(request) + user_id = auth_user.to_string() + time_now = self.clock.time_msec() + + result = yield self.store.count_e2e_one_time_keys( + user_id, device_id, time_now + ) + defer.returnValue((200, {"one_time_key_counts": result})) + + +class KeyQueryServlet(RestServlet): + """ + GET /keys/query/<user_id> HTTP/1.1 + + GET /keys/query/<user_id>/<device_id> HTTP/1.1 + + POST /keys/query HTTP/1.1 + Content-Type: application/json + { + "device_keys": { + "<user_id>": ["<device_id>"] + } } + + HTTP/1.1 200 OK + { + "device_keys": { + "<user_id>": { + "<device_id>": { + "user_id": "<user_id>", // Duplicated to be signed + "device_id": "<device_id>", // Duplicated to be signed + "valid_until_ts": <millisecond_timestamp>, + "algorithms": [ // List of supported algorithms + "m.olm.curve25519-aes-sha256", + ], + "keys": { // Must include a ed25519 signing key + "<algorithm>:<key_id>": "<key_base64>", + }, + "signatures:" { + // Must be signed with device's ed25519 key + "<user_id>/<device_id>": { + "<algorithm>:<key_id>": "<signature_base64>" + } + // Must be signed by this server. + "<server_name>": { + "<algorithm>:<key_id>": "<signature_base64>" + } } } } } } + """ + + PATTERN = client_v2_pattern( + "/keys/query(?:" + "/(?P<user_id>[^/]*)(?:" + "/(?P<device_id>[^/]*)" + ")?" + ")?" + ) + + def __init__(self, hs): + super(KeyQueryServlet, self).__init__() + self.store = hs.get_datastore() + self.auth = hs.get_auth() + + @defer.inlineCallbacks + def on_POST(self, request, user_id, device_id): + logger.debug("onPOST") + yield self.auth.get_user_by_req(request) + try: + body = json.loads(request.content.read()) + except: + raise SynapseError(400, "Invalid key JSON") + query = [] + for user_id, device_ids in body.get("device_keys", {}).items(): + if not device_ids: + query.append((user_id, None)) + else: + for device_id in device_ids: + query.append((user_id, device_id)) + results = yield self.store.get_e2e_device_keys([(user_id, device_id)]) + defer.returnValue(self.json_result(request, results)) + + @defer.inlineCallbacks + def on_GET(self, request, user_id, device_id): + auth_user, client_info = yield self.auth.get_user_by_req(request) + auth_user_id = auth_user.to_string() + if not user_id: + user_id = auth_user_id + if not device_id: + device_id = None + # Returns a map of user_id->device_id->json_bytes. + results = yield self.store.get_e2e_device_keys([(user_id, device_id)]) + defer.returnValue(self.json_result(request, results)) + + def json_result(self, request, results): + json_result = {} + for user_id, device_keys in results.items(): + for device_id, json_bytes in device_keys.items(): + json_result.setdefault(user_id, {})[device_id] = json.loads( + json_bytes + ) + return (200, {"device_keys": json_result}) + + +class OneTimeKeyServlet(RestServlet): + """ + GET /keys/take/<user-id>/<device-id>/<algorithm> HTTP/1.1 + + POST /keys/take HTTP/1.1 + { + "one_time_keys": { + "<user_id>": { + "<device_id>": "<algorithm>" + } } } + + HTTP/1.1 200 OK + { + "one_time_keys": { + "<user_id>": { + "<device_id>": { + "<algorithm>:<key_id>": "<key_base64>" + } } } } + + """ + PATTERN = client_v2_pattern( + "/keys/take(?:/?|(?:/" + "(?P<user_id>[^/]*)/(?P<device_id>[^/]*)/(?P<algorithm>[^/]*)" + ")?)" + ) + + def __init__(self, hs): + super(OneTimeKeyServlet, self).__init__() + self.store = hs.get_datastore() + self.auth = hs.get_auth() + self.clock = hs.get_clock() + + @defer.inlineCallbacks + def on_GET(self, request, user_id, device_id, algorithm): + yield self.auth.get_user_by_req(request) + time_now = self.clock.time_msec() + results = yield self.store.take_e2e_one_time_keys( + [(user_id, device_id, algorithm)], time_now + ) + defer.returnValue(self.json_result(request, results)) + + @defer.inlineCallbacks + def on_POST(self, request, user_id, device_id, algorithm): + yield self.auth.get_user_by_req(request) + try: + body = json.loads(request.content.read()) + except: + raise SynapseError(400, "Invalid key JSON") + query = [] + for user_id, device_keys in body.get("one_time_keys", {}).items(): + for device_id, algorithm in device_keys.items(): + query.append((user_id, device_id, algorithm)) + time_now = self.clock.time_msec() + results = yield self.store.take_e2e_one_time_keys(query, time_now) + defer.returnValue(self.json_result(request, results)) + + def json_result(self, request, results): + json_result = {} + for user_id, device_keys in results.items(): + for device_id, keys in device_keys.items(): + for key_id, json_bytes in keys.items(): + json_result.setdefault(user_id, {})[device_id] = { + key_id: json.loads(json_bytes) + } + return (200, {"one_time_keys": json_result}) + + +def register_servlets(hs, http_server): + KeyUploadServlet(hs).register(http_server) + KeyQueryServlet(hs).register(http_server) + OneTimeKeyServlet(hs).register(http_server) |