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Merge pull request #1112 from matrix-org/markjh/e2e_key_handler
Move the E2E key handling into the e2e handler
This commit is contained in:
Mark Haines
GitHub
commit
0c057736ac
@ -13,9 +13,10 @@
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import json
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import ujson as json
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import logging
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from canonicaljson import encode_canonical_json
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from twisted.internet import defer
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from synapse.api.errors import SynapseError, CodeMessageException
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@ -29,7 +30,9 @@ class E2eKeysHandler(object):
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def __init__(self, hs):
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self.store = hs.get_datastore()
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self.federation = hs.get_replication_layer()
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self.device_handler = hs.get_device_handler()
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self.is_mine_id = hs.is_mine_id
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self.clock = hs.get_clock()
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# doesn't really work as part of the generic query API, because the
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# query request requires an object POST, but we abuse the
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@ -103,9 +106,9 @@ class E2eKeysHandler(object):
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for destination in remote_queries
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]))
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defer.returnValue((200, {
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defer.returnValue({
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"device_keys": results, "failures": failures,
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}))
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})
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@defer.inlineCallbacks
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def query_local_devices(self, query):
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@ -159,3 +162,99 @@ class E2eKeysHandler(object):
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device_keys_query = query_body.get("device_keys", {})
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res = yield self.query_local_devices(device_keys_query)
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defer.returnValue({"device_keys": res})
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@defer.inlineCallbacks
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def claim_one_time_keys(self, query, timeout):
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local_query = []
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remote_queries = {}
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for user_id, device_keys in query.get("one_time_keys", {}).items():
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if self.is_mine_id(user_id):
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for device_id, algorithm in device_keys.items():
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local_query.append((user_id, device_id, algorithm))
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else:
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domain = get_domain_from_id(user_id)
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remote_queries.setdefault(domain, {})[user_id] = device_keys
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results = yield self.store.claim_e2e_one_time_keys(local_query)
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json_result = {}
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failures = {}
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for user_id, device_keys in results.items():
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for device_id, keys in device_keys.items():
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for key_id, json_bytes in keys.items():
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json_result.setdefault(user_id, {})[device_id] = {
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key_id: json.loads(json_bytes)
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}
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@defer.inlineCallbacks
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def claim_client_keys(destination):
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device_keys = remote_queries[destination]
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try:
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remote_result = yield self.federation.claim_client_keys(
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destination,
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{"one_time_keys": device_keys},
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timeout=timeout
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)
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for user_id, keys in remote_result["one_time_keys"].items():
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if user_id in device_keys:
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json_result[user_id] = keys
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except CodeMessageException as e:
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failures[destination] = {
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"status": e.code, "message": e.message
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}
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yield preserve_context_over_deferred(defer.gatherResults([
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preserve_fn(claim_client_keys)(destination)
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for destination in remote_queries
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]))
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defer.returnValue({
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"one_time_keys": json_result,
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"failures": failures
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})
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@defer.inlineCallbacks
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def upload_keys_for_user(self, user_id, device_id, keys):
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time_now = self.clock.time_msec()
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# TODO: Validate the JSON to make sure it has the right keys.
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device_keys = keys.get("device_keys", None)
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if device_keys:
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logger.info(
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"Updating device_keys for device %r for user %s at %d",
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device_id, user_id, time_now
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)
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# TODO: Sign the JSON with the server key
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yield self.store.set_e2e_device_keys(
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user_id, device_id, time_now,
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encode_canonical_json(device_keys)
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)
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one_time_keys = keys.get("one_time_keys", None)
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if one_time_keys:
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logger.info(
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"Adding %d one_time_keys for device %r for user %r at %d",
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len(one_time_keys), device_id, user_id, time_now
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)
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key_list = []
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for key_id, key_json in one_time_keys.items():
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algorithm, key_id = key_id.split(":")
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key_list.append((
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algorithm, key_id, encode_canonical_json(key_json)
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))
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yield self.store.add_e2e_one_time_keys(
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user_id, device_id, time_now, key_list
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)
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# the device should have been registered already, but it may have been
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# deleted due to a race with a DELETE request. Or we may be using an
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# old access_token without an associated device_id. Either way, we
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# need to double-check the device is registered to avoid ending up with
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# keys without a corresponding device.
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self.device_handler.check_device_registered(user_id, device_id)
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result = yield self.store.count_e2e_one_time_keys(user_id, device_id)
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defer.returnValue({"one_time_key_counts": result})
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@ -15,16 +15,12 @@
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import logging
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import simplejson as json
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from canonicaljson import encode_canonical_json
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from twisted.internet import defer
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from synapse.api.errors import SynapseError, CodeMessageException
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from synapse.api.errors import SynapseError
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from synapse.http.servlet import (
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RestServlet, parse_json_object_from_request, parse_integer
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)
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from synapse.types import get_domain_from_id
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from synapse.util.logcontext import preserve_fn, preserve_context_over_deferred
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from ._base import client_v2_patterns
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logger = logging.getLogger(__name__)
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@ -64,17 +60,13 @@ class KeyUploadServlet(RestServlet):
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hs (synapse.server.HomeServer): server
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"""
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super(KeyUploadServlet, self).__init__()
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self.store = hs.get_datastore()
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self.clock = hs.get_clock()
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self.auth = hs.get_auth()
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self.device_handler = hs.get_device_handler()
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self.e2e_keys_handler = hs.get_e2e_keys_handler()
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@defer.inlineCallbacks
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def on_POST(self, request, device_id):
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requester = yield self.auth.get_user_by_req(request)
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user_id = requester.user.to_string()
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body = parse_json_object_from_request(request)
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if device_id is not None:
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@ -94,47 +86,10 @@ class KeyUploadServlet(RestServlet):
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"To upload keys, you must pass device_id when authenticating"
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)
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time_now = self.clock.time_msec()
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# TODO: Validate the JSON to make sure it has the right keys.
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device_keys = body.get("device_keys", None)
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if device_keys:
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logger.info(
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"Updating device_keys for device %r for user %s at %d",
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device_id, user_id, time_now
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)
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# TODO: Sign the JSON with the server key
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yield self.store.set_e2e_device_keys(
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user_id, device_id, time_now,
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encode_canonical_json(device_keys)
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)
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one_time_keys = body.get("one_time_keys", None)
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if one_time_keys:
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logger.info(
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"Adding %d one_time_keys for device %r for user %r at %d",
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len(one_time_keys), device_id, user_id, time_now
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)
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key_list = []
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for key_id, key_json in one_time_keys.items():
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algorithm, key_id = key_id.split(":")
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key_list.append((
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algorithm, key_id, encode_canonical_json(key_json)
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))
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yield self.store.add_e2e_one_time_keys(
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user_id, device_id, time_now, key_list
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)
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# the device should have been registered already, but it may have been
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# deleted due to a race with a DELETE request. Or we may be using an
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# old access_token without an associated device_id. Either way, we
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# need to double-check the device is registered to avoid ending up with
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# keys without a corresponding device.
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self.device_handler.check_device_registered(user_id, device_id)
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result = yield self.store.count_e2e_one_time_keys(user_id, device_id)
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defer.returnValue((200, {"one_time_key_counts": result}))
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result = yield self.e2e_keys_handler.upload_keys_for_user(
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user_id, device_id, body
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)
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defer.returnValue((200, result))
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class KeyQueryServlet(RestServlet):
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@ -199,7 +154,7 @@ class KeyQueryServlet(RestServlet):
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timeout = parse_integer(request, "timeout", 10 * 1000)
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body = parse_json_object_from_request(request)
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result = yield self.e2e_keys_handler.query_devices(body, timeout)
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defer.returnValue(result)
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defer.returnValue((200, result))
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@defer.inlineCallbacks
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def on_GET(self, request, user_id, device_id):
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@ -212,7 +167,7 @@ class KeyQueryServlet(RestServlet):
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{"device_keys": {user_id: device_ids}},
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timeout,
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)
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defer.returnValue(result)
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defer.returnValue((200, result))
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class OneTimeKeyServlet(RestServlet):
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@ -244,80 +199,29 @@ class OneTimeKeyServlet(RestServlet):
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def __init__(self, hs):
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super(OneTimeKeyServlet, self).__init__()
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self.store = hs.get_datastore()
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self.auth = hs.get_auth()
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self.clock = hs.get_clock()
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self.federation = hs.get_replication_layer()
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self.is_mine_id = hs.is_mine_id
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self.e2e_keys_handler = hs.get_e2e_keys_handler()
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@defer.inlineCallbacks
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def on_GET(self, request, user_id, device_id, algorithm):
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yield self.auth.get_user_by_req(request)
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timeout = parse_integer(request, "timeout", 10 * 1000)
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result = yield self.handle_request(
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result = yield self.e2e_keys_handler.claim_one_time_keys(
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{"one_time_keys": {user_id: {device_id: algorithm}}},
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timeout,
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)
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defer.returnValue(result)
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defer.returnValue((200, result))
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@defer.inlineCallbacks
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def on_POST(self, request, user_id, device_id, algorithm):
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yield self.auth.get_user_by_req(request)
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timeout = parse_integer(request, "timeout", 10 * 1000)
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body = parse_json_object_from_request(request)
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result = yield self.handle_request(body, timeout)
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defer.returnValue(result)
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@defer.inlineCallbacks
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def handle_request(self, body, timeout):
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local_query = []
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remote_queries = {}
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for user_id, device_keys in body.get("one_time_keys", {}).items():
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if self.is_mine_id(user_id):
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for device_id, algorithm in device_keys.items():
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local_query.append((user_id, device_id, algorithm))
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else:
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domain = get_domain_from_id(user_id)
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remote_queries.setdefault(domain, {})[user_id] = device_keys
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results = yield self.store.claim_e2e_one_time_keys(local_query)
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json_result = {}
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failures = {}
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for user_id, device_keys in results.items():
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for device_id, keys in device_keys.items():
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for key_id, json_bytes in keys.items():
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json_result.setdefault(user_id, {})[device_id] = {
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key_id: json.loads(json_bytes)
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}
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@defer.inlineCallbacks
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def claim_client_keys(destination):
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device_keys = remote_queries[destination]
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try:
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remote_result = yield self.federation.claim_client_keys(
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destination,
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{"one_time_keys": device_keys},
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timeout=timeout
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)
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for user_id, keys in remote_result["one_time_keys"].items():
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if user_id in device_keys:
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json_result[user_id] = keys
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except CodeMessageException as e:
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failures[destination] = {
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"status": e.code, "message": e.message
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}
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yield preserve_context_over_deferred(defer.gatherResults([
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preserve_fn(claim_client_keys)(destination)
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for destination in remote_queries
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]))
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defer.returnValue((200, {
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"one_time_keys": json_result,
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"failures": failures
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}))
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result = yield self.e2e_keys_handler.claim_one_time_keys(
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body,
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timeout,
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)
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defer.returnValue((200, result))
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def register_servlets(hs, http_server):
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