diff --git a/synapse/storage/keys.py b/synapse/storage/keys.py
index 7036541792..5300720dbb 100644
--- a/synapse/storage/keys.py
+++ b/synapse/storage/keys.py
@@ -19,6 +19,7 @@ import logging
import six
+import attr
from signedjson.key import decode_verify_key_bytes
from synapse.util import batch_iter
@@ -36,6 +37,12 @@ else:
db_binary_type = memoryview
+@attr.s(slots=True, frozen=True)
+class FetchKeyResult(object):
+ verify_key = attr.ib() # VerifyKey: the key itself
+ valid_until_ts = attr.ib() # int: how long we can use this key for
+
+
class KeyStore(SQLBaseStore):
"""Persistence for signature verification keys
"""
@@ -54,8 +61,8 @@ class KeyStore(SQLBaseStore):
iterable of (server_name, key-id) tuples to fetch keys for
Returns:
- Deferred: resolves to dict[Tuple[str, str], VerifyKey|None]:
- map from (server_name, key_id) -> VerifyKey, or None if the key is
+ Deferred: resolves to dict[Tuple[str, str], FetchKeyResult|None]:
+ map from (server_name, key_id) -> FetchKeyResult, or None if the key is
unknown
"""
keys = {}
@@ -65,17 +72,19 @@ class KeyStore(SQLBaseStore):
# batch_iter always returns tuples so it's safe to do len(batch)
sql = (
- "SELECT server_name, key_id, verify_key FROM server_signature_keys "
- "WHERE 1=0"
+ "SELECT server_name, key_id, verify_key, ts_valid_until_ms "
+ "FROM server_signature_keys WHERE 1=0"
) + " OR (server_name=? AND key_id=?)" * len(batch)
txn.execute(sql, tuple(itertools.chain.from_iterable(batch)))
for row in txn:
- server_name, key_id, key_bytes = row
- keys[(server_name, key_id)] = decode_verify_key_bytes(
- key_id, bytes(key_bytes)
+ server_name, key_id, key_bytes, ts_valid_until_ms = row
+ res = FetchKeyResult(
+ verify_key=decode_verify_key_bytes(key_id, bytes(key_bytes)),
+ valid_until_ts=ts_valid_until_ms,
)
+ keys[(server_name, key_id)] = res
def _txn(txn):
for batch in batch_iter(server_name_and_key_ids, 50):
@@ -84,38 +93,53 @@ class KeyStore(SQLBaseStore):
return self.runInteraction("get_server_verify_keys", _txn)
- def store_server_verify_key(
- self, server_name, from_server, time_now_ms, verify_key
- ):
- """Stores a NACL verification key for the given server.
+ def store_server_verify_keys(self, from_server, ts_added_ms, verify_keys):
+ """Stores NACL verification keys for remote servers.
Args:
- server_name (str): The name of the server.
- from_server (str): Where the verification key was looked up
- time_now_ms (int): The time now in milliseconds
- verify_key (nacl.signing.VerifyKey): The NACL verify key.
+ from_server (str): Where the verification keys were looked up
+ ts_added_ms (int): The time to record that the key was added
+ verify_keys (iterable[tuple[str, str, FetchKeyResult]]):
+ keys to be stored. Each entry is a triplet of
+ (server_name, key_id, key).
"""
- key_id = "%s:%s" % (verify_key.alg, verify_key.version)
-
- # XXX fix this to not need a lock (#3819)
- def _txn(txn):
- self._simple_upsert_txn(
- txn,
- table="server_signature_keys",
- keyvalues={"server_name": server_name, "key_id": key_id},
- values={
- "from_server": from_server,
- "ts_added_ms": time_now_ms,
- "verify_key": db_binary_type(verify_key.encode()),
- },
+ key_values = []
+ value_values = []
+ invalidations = []
+ for server_name, key_id, fetch_result in verify_keys:
+ key_values.append((server_name, key_id))
+ value_values.append(
+ (
+ from_server,
+ ts_added_ms,
+ fetch_result.valid_until_ts,
+ db_binary_type(fetch_result.verify_key.encode()),
+ )
)
# invalidate takes a tuple corresponding to the params of
# _get_server_verify_key. _get_server_verify_key only takes one
# param, which is itself the 2-tuple (server_name, key_id).
- txn.call_after(
- self._get_server_verify_key.invalidate, ((server_name, key_id),)
- )
-
- return self.runInteraction("store_server_verify_key", _txn)
+ invalidations.append((server_name, key_id))
+
+ def _invalidate(res):
+ f = self._get_server_verify_key.invalidate
+ for i in invalidations:
+ f((i, ))
+ return res
+
+ return self.runInteraction(
+ "store_server_verify_keys",
+ self._simple_upsert_many_txn,
+ table="server_signature_keys",
+ key_names=("server_name", "key_id"),
+ key_values=key_values,
+ value_names=(
+ "from_server",
+ "ts_added_ms",
+ "ts_valid_until_ms",
+ "verify_key",
+ ),
+ value_values=value_values,
+ ).addCallback(_invalidate)
def store_server_keys_json(
self, server_name, key_id, from_server, ts_now_ms, ts_expires_ms, key_json_bytes
|
