diff options
Diffstat (limited to 'synapse/storage/signatures.py')
| -rw-r--r-- | synapse/storage/signatures.py | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/synapse/storage/signatures.py b/synapse/storage/signatures.py index 1f0a680500..1147102489 100644 --- a/synapse/storage/signatures.py +++ b/synapse/storage/signatures.py @@ -88,3 +88,34 @@ class SignatureStore(SQLBaseStore): "signature": buffer(signature_bytes), }) + def _get_prev_pdu_hashes_txn(self, txn, pdu_id, origin): + """Get all the hashes for previous PDUs of a PDU + Args: + txn (cursor): + pdu_id (str): Id of the PDU. + origin (str): Origin of the PDU. + Returns: + dict of (pdu_id, origin) -> dict of algorithm -> hash_bytes. + """ + query = ( + "SELECT prev_pdu_id, prev_origin, algorithm, hash" + " FROM pdu_edge_hashes" + " WHERE pdu_id = ? and origin = ?" + ) + txn.execute(query, (pdu_id, origin)) + results = {} + for prev_pdu_id, prev_origin, algorithm, hash_bytes in txn.fetchall(): + hashes = results.setdefault((prev_pdu_id, prev_origin), {}) + hashes[algorithm] = hash_bytes + return results + + def _store_prev_pdu_hash_txn(self, txn, pdu_id, origin, prev_pdu_id, + prev_origin, algorithm, hash_bytes): + self._simple_insert_txn(txn, "pdu_edge_hashes", { + "pdu_id": pdu_id, + "origin": origin, + "prev_pdu_id": prev_pdu_id, + "prev_origin": prev_origin, + "algorithm": algorithm, + "hash": buffer(hash_bytes), + }) |