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Fix bucket name being reused between instances of different buckets #496

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Fix bucket name being reused between instances of different buckets #496

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minhdanh Aug 29, 2025
b36b3f3
Fix bucket name being reused between instances of different buckets
minhdanh Sep 8, 2025
d36a71e
Merge branch 'develop' into develop
rickdijk Jul 21, 2026
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19 changes: 12 additions & 7 deletions flutter_cache_manager_firebase/lib/src/firebase_cache_manager.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -6,22 +6,27 @@ import 'firebase_http_file_service.dart';
/// Use [FirebaseCacheManager] if you want to download files from firebase storage
/// and store them in your local cache.
class FirebaseCacheManager extends CacheManager {
static const key = 'firebaseCache';
static const defaultKey = 'firebaseCache';

@rickdijk rickdijk Jul 21, 2026

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key → defaultKey is a public API rename if anyone used FirebaseCacheManager.key. Prefer keeping key or a deprecated alias.


static final FirebaseCacheManager _instance =
FirebaseCacheManager._(retryOptions: _retryOptions, bucket: _bucket);
static final Map<String, FirebaseCacheManager> _instances = {};

static RetryOptions? _retryOptions;

@rickdijk rickdijk Jul 21, 2026

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These statics are no longer needed once each instance owns its own bucket/retryOptions. Keeping them causes cross-instance leakage.


static String? _bucket;

factory FirebaseCacheManager({RetryOptions? retryOptions, String? bucket}) {
_bucket = bucket;
_retryOptions = retryOptions;
return _instance;
final cacheKey = bucket ?? defaultKey;
if (_instances.containsKey(cacheKey)) {

@rickdijk rickdijk Jul 21, 2026

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When an instance already exists, a new retryOptions argument is silently ignored. Worth documenting, or only accepting options on first create.

return _instances[cacheKey]!;
}
_bucket = bucket ?? _bucket;

@rickdijk rickdijk Jul 21, 2026

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_bucket = bucket ?? _bucket (and the same for _retryOptions) leaks state across instances.

FirebaseCacheManager(bucket: 'bucket-a');
FirebaseCacheManager(); // cacheKey is defaultKey, but _bucket is still 'bucket-a'

Pass the factory args directly instead:

final instance = FirebaseCacheManager._(
  key: cacheKey,
  retryOptions: retryOptions,
  bucket: bucket,
);

(or putIfAbsent and drop the statics entirely)

_retryOptions = retryOptions ?? _retryOptions;
final instance = FirebaseCacheManager._(key: cacheKey, retryOptions: _retryOptions, bucket: _bucket);
_instances[cacheKey] = instance;
return instance;
}

FirebaseCacheManager._({RetryOptions? retryOptions, String? bucket})
FirebaseCacheManager._({required String key, RetryOptions? retryOptions, String? bucket})
: super(Config(key,
fileService: FirebaseHttpFileService(
retryOptions: retryOptions, bucket: bucket)));
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4 changes: 2 additions & 2 deletions flutter_cache_manager_firebase/pubspec.yaml
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Expand Up @@ -10,12 +10,12 @@ dependencies:
flutter:
sdk: flutter
flutter_cache_manager: ^3.4.1
firebase_storage: '>=12.0.0 <13.0.0'
firebase_storage: ^13.0.0

@rickdijk rickdijk Jul 21, 2026

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This version bump should preferably be done in a different PR

path_provider: ^2.1.4
path: ^1.9.0
retry: ^3.1.2

dev_dependencies:
flutter_lints: ^4.0.0
flutter_lints: ^6.0.0
flutter_test:
sdk: flutter
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