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Sign evnets

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This commit is contained in:
Erik Johnston 2014-10-31 17:08:52 +00:00
parent 80b2710e6f
commit ecabff7eb4
2 changed files with 26 additions and 0 deletions
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20
synapse/crypto/event_signing.py
View File

@ -94,3 +94,23 @@ def verify_signed_event_pdu(pdu, signature_name, verify_key):
tmp_pdu = prune_pdu(tmp_pdu)
pdu_json = tmp_pdu.get_dict()
verify_signed_json(pdu_json, signature_name, verify_key)
def add_hashes_and_signatures(event, signature_name, signing_key,
hash_algorithm=hashlib.sha256):
tmp_event = copy.deepcopy(event)
tmp_event = prune_event(tmp_event)
redact_json = tmp_event.get_dict()
redact_json.pop("signatures", None)
redact_json = sign_json(redact_json, signature_name, signing_key)
event.signatures = redact_json["signatures"]
event_json = event.get_full_dict()
#TODO: We need to sign the JSON that is going out via fedaration.
event_json.pop("age_ts", None)
event_json.pop("unsigned", None)
event_json.pop("signatures", None)
event_json.pop("hashes", None)
event_json_bytes = encode_canonical_json(event_json)
hashed = hash_algorithm(event_json_bytes)
event.hashes[hashed.name] = encode_base64(hashed.digest())

6
synapse/storage/__init__.py
View File

@ -255,6 +255,12 @@ class DataStore(RoomMemberStore, RoomStore,
}
)
for hash_alg, hash_base64 in event.hashes.items():
hash_bytes = decode_base64(hash_base64)
self._store_event_content_hash_txn(
txn, event.event_id, hash_alg, hash_bytes,
)
if hasattr(event, "signatures"):
signatures = event.signatures.get(event.origin, {})