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WIP cached spark anon set electrumx call

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julian 2023-12-13 11:36:37 -06:00
parent b1e4627837
commit 7dcac56a5a
2 changed files with 66 additions and 0 deletions
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13
lib/db/hive/db.dart
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@ -53,6 +53,8 @@ class DB {
// firo only
String _boxNameSetCache({required Coin coin}) =>
"${coin.name}_anonymitySetCache";
String _boxNameSetSparkCache({required Coin coin}) =>
"${coin.name}_anonymitySetSparkCache";
String _boxNameUsedSerialsCache({required Coin coin}) =>
"${coin.name}_usedSerialsCache";
@ -75,6 +77,7 @@ class DB {
final Map<Coin, Box<dynamic>> _txCacheBoxes = {};
final Map<Coin, Box<dynamic>> _setCacheBoxes = {};
final Map<Coin, Box<dynamic>> _setSparkCacheBoxes = {};
final Map<Coin, Box<dynamic>> _usedSerialsCacheBoxes = {};
// exposed for monero
@ -197,6 +200,15 @@ class DB {
await Hive.openBox<dynamic>(_boxNameSetCache(coin: coin));
}
Future<Box<dynamic>> getSparkAnonymitySetCacheBox(
{required Coin coin}) async {
if (_setSparkCacheBoxes[coin]?.isOpen != true) {
_setSparkCacheBoxes.remove(coin);
}
return _setSparkCacheBoxes[coin] ??=
await Hive.openBox<dynamic>(_boxNameSetSparkCache(coin: coin));
}
Future<void> closeAnonymitySetCacheBox({required Coin coin}) async {
await _setCacheBoxes[coin]?.close();
}
@ -218,6 +230,7 @@ class DB {
await deleteAll<dynamic>(boxName: _boxNameTxCache(coin: coin));
if (coin == Coin.firo) {
await deleteAll<dynamic>(boxName: _boxNameSetCache(coin: coin));
await deleteAll<dynamic>(boxName: _boxNameSetSparkCache(coin: coin));
await deleteAll<dynamic>(boxName: _boxNameUsedSerialsCache(coin: coin));
}
}

53
lib/electrumx_rpc/cached_electrumx_client.dart
View file

@ -107,6 +107,59 @@ class CachedElectrumXClient {
}
}
Future<Map<String, dynamic>> getSparkAnonymitySet({
required String groupId,
String blockhash = "",
required Coin coin,
}) async {
try {
final box = await DB.instance.getSparkAnonymitySetCacheBox(coin: coin);
final cachedSet = box.get(groupId) as Map?;
Map<String, dynamic> set;
// null check to see if there is a cached set
if (cachedSet == null) {
set = {
"setId": groupId,
"blockHash": blockhash,
"setHash": "",
"coins": <dynamic>[],
};
} else {
set = Map<String, dynamic>.from(cachedSet);
}
final newSet = await electrumXClient.getSparkAnonymitySet(
coinGroupId: groupId,
startBlockHash: set["blockHash"] as String,
);
// update set with new data
if (newSet["setHash"] != "" && set["setHash"] != newSet["setHash"]) {
set["setHash"] = newSet["setHash"];
set["blockHash"] = newSet["blockHash"];
for (int i = (newSet["coins"] as List).length - 1; i >= 0; i--) {
// TODO verify this is correct (or append?)
set["coins"].insert(0, newSet["coins"][i]);
}
// save set to db
await box.put(groupId, set);
Logging.instance.log(
"Updated current anonymity set for ${coin.name} with group ID $groupId",
level: LogLevel.Info,
);
}
return set;
} catch (e, s) {
Logging.instance.log(
"Failed to process CachedElectrumX.getAnonymitySet(): $e\n$s",
level: LogLevel.Error);
rethrow;
}
}
String base64ToHex(String source) =>
base64Decode(LineSplitter.split(source).join())
.map((e) => e.toRadixString(16).padLeft(2, '0'))