feat(server): Add support for client-side hashing (#2072)

* Modify controller DTOs

* Can check duplicates on server side

* Remove deviceassetid and deviceid

* Remove device ids from file uploader

* Add db migration for removed device ids

* Don't sanitize checksum

* Convert asset checksum to string

* Make checksum not optional for asset

* Use enums when rejecting duplicates

* Cleanup

* Return of the device id, but optional

* Don't use deviceId for upload folder

* Use checksum in thumb path

* Only use asset id in thumb path

* Openapi generation

* Put deviceAssetId back in asset response dto

* Add missing checksum in test fixture

* Add another missing checksum in test fixture

* Cleanup asset repository

* Add back previous /exists endpoint

* Require checksum to not be null

* Correctly set deviceId in db

* Remove index

* Fix compilation errors

* Make device id nullabel in asset response dto

* Reduce PR scope

* Revert asset service

* Reorder imports

* Reorder imports

* Reduce PR scope

* Reduce PR scope

* Reduce PR scope

* Reduce PR scope

* Reduce PR scope

* Update openapi

* Reduce PR scope

* refactor: asset bulk upload check

* chore: regenreate open-api

* chore: fix tests

* chore: tests

* update migrations and regenerate api

* Feat: use checksum in web file uploader

* Change to wasm-crypto

* Use crypto api for checksumming in web uploader

* Minor cleanup of file upload

* feat(web): pause and resume jobs

* Make device asset id not nullable again

* Cleanup

* Device id not nullable in response dto

* Update API specs

* Bump api specs

* Remove old TODO comment

* Remove NOT NULL constraint on checksum index

* Fix requested pubspec changes

* Remove unneeded import

* Update server/apps/immich/src/api-v1/asset/asset.service.ts

Co-authored-by: Michel Heusschen <59014050+michelheusschen@users.noreply.github.com>

* Update server/apps/immich/src/api-v1/asset/asset-repository.ts

Co-authored-by: Michel Heusschen <59014050+michelheusschen@users.noreply.github.com>

* Remove unneeded check

* Update server/apps/immich/src/api-v1/asset/asset-repository.ts

Co-authored-by: Michel Heusschen <59014050+michelheusschen@users.noreply.github.com>

* Remove hashing in the web uploader

* Cleanup file uploader

* Remove varchar from asset entity fields

* Return 200 from bulk upload check

* Put device asset id back into asset repository

* Merge migrations

* Revert pubspec lock

* Update openapi specs

* Merge upstream changes

* Fix failing asset service tests

* Fix formatting issue

* Cleanup migrations

* Remove newline from pubspec

* Revert newline

* Checkout main version

* Revert again

* Only return AssetCheck

---------

Co-authored-by: Jason Rasmussen <jrasm91@gmail.com>
Co-authored-by: Michel Heusschen <59014050+michelheusschen@users.noreply.github.com>

mobile/openapi/.openapi-generator/FILES

@@ -17,6 +17,10 @@ doc/AlbumCountResponseDto.md
 doc/AlbumResponseDto.md
 doc/AllJobStatusResponseDto.md
 doc/AssetApi.md
+doc/AssetBulkUploadCheckDto.md
+doc/AssetBulkUploadCheckItem.md
+doc/AssetBulkUploadCheckResponseDto.md
+doc/AssetBulkUploadCheckResult.md
 doc/AssetCountByTimeBucket.md
 doc/AssetCountByTimeBucketResponseDto.md
 doc/AssetCountByUserIdResponseDto.md
@@ -142,6 +146,10 @@ lib/model/api_key_create_dto.dart
 lib/model/api_key_create_response_dto.dart
 lib/model/api_key_response_dto.dart
 lib/model/api_key_update_dto.dart
+lib/model/asset_bulk_upload_check_dto.dart
+lib/model/asset_bulk_upload_check_item.dart
+lib/model/asset_bulk_upload_check_response_dto.dart
+lib/model/asset_bulk_upload_check_result.dart
 lib/model/asset_count_by_time_bucket.dart
 lib/model/asset_count_by_time_bucket_response_dto.dart
 lib/model/asset_count_by_user_id_response_dto.dart
@@ -236,6 +244,10 @@ test/api_key_create_response_dto_test.dart
 test/api_key_response_dto_test.dart
 test/api_key_update_dto_test.dart
 test/asset_api_test.dart
+test/asset_bulk_upload_check_dto_test.dart
+test/asset_bulk_upload_check_item_test.dart
+test/asset_bulk_upload_check_response_dto_test.dart
+test/asset_bulk_upload_check_result_test.dart
 test/asset_count_by_time_bucket_response_dto_test.dart
 test/asset_count_by_time_bucket_test.dart
 test/asset_count_by_user_id_response_dto_test.dart

mobile/openapi/README.md

@@ -90,6 +90,7 @@ Class | Method | HTTP request | Description
 *AlbumApi* | [**removeUserFromAlbum**](doc//AlbumApi.md#removeuserfromalbum) | **DELETE** /album/{id}/user/{userId} | 
 *AlbumApi* | [**updateAlbumInfo**](doc//AlbumApi.md#updatealbuminfo) | **PATCH** /album/{id} | 
 *AssetApi* | [**addAssetsToSharedLink**](doc//AssetApi.md#addassetstosharedlink) | **PATCH** /asset/shared-link/add | 
+*AssetApi* | [**bulkUploadCheck**](doc//AssetApi.md#bulkuploadcheck) | **POST** /asset/bulk-upload-check | 
 *AssetApi* | [**checkDuplicateAsset**](doc//AssetApi.md#checkduplicateasset) | **POST** /asset/check | 
 *AssetApi* | [**checkExistingAssets**](doc//AssetApi.md#checkexistingassets) | **POST** /asset/exist | 
 *AssetApi* | [**createAssetsSharedLink**](doc//AssetApi.md#createassetssharedlink) | **POST** /asset/shared-link | 
@@ -183,6 +184,10 @@ Class | Method | HTTP request | Description
  - [AlbumCountResponseDto](doc//AlbumCountResponseDto.md)
  - [AlbumResponseDto](doc//AlbumResponseDto.md)
  - [AllJobStatusResponseDto](doc//AllJobStatusResponseDto.md)
+ - [AssetBulkUploadCheckDto](doc//AssetBulkUploadCheckDto.md)
+ - [AssetBulkUploadCheckItem](doc//AssetBulkUploadCheckItem.md)
+ - [AssetBulkUploadCheckResponseDto](doc//AssetBulkUploadCheckResponseDto.md)
+ - [AssetBulkUploadCheckResult](doc//AssetBulkUploadCheckResult.md)
  - [AssetCountByTimeBucket](doc//AssetCountByTimeBucket.md)
  - [AssetCountByTimeBucketResponseDto](doc//AssetCountByTimeBucketResponseDto.md)
  - [AssetCountByUserIdResponseDto](doc//AssetCountByUserIdResponseDto.md)

mobile/openapi/doc/AssetApi.md

@@ -10,6 +10,7 @@ All URIs are relative to */api*
 Method | HTTP request | Description
 ------------- | ------------- | -------------
 [**addAssetsToSharedLink**](AssetApi.md#addassetstosharedlink) | **PATCH** /asset/shared-link/add | 
+[**bulkUploadCheck**](AssetApi.md#bulkuploadcheck) | **POST** /asset/bulk-upload-check | 
 [**checkDuplicateAsset**](AssetApi.md#checkduplicateasset) | **POST** /asset/check | 
 [**checkExistingAssets**](AssetApi.md#checkexistingassets) | **POST** /asset/exist | 
 [**createAssetsSharedLink**](AssetApi.md#createassetssharedlink) | **POST** /asset/shared-link | 
@@ -93,6 +94,63 @@ Name | Type | Description  | Notes
 
 [[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
 
+# **bulkUploadCheck**
+> AssetBulkUploadCheckResponseDto bulkUploadCheck(assetBulkUploadCheckDto)
+
+
+
+Checks if assets exist by checksums
+
+### Example
+```dart
+import 'package:openapi/api.dart';
+// TODO Configure API key authorization: cookie
+//defaultApiClient.getAuthentication<ApiKeyAuth>('cookie').apiKey = 'YOUR_API_KEY';
+// uncomment below to setup prefix (e.g. Bearer) for API key, if needed
+//defaultApiClient.getAuthentication<ApiKeyAuth>('cookie').apiKeyPrefix = 'Bearer';
+// TODO Configure API key authorization: api_key
+//defaultApiClient.getAuthentication<ApiKeyAuth>('api_key').apiKey = 'YOUR_API_KEY';
+// uncomment below to setup prefix (e.g. Bearer) for API key, if needed
+//defaultApiClient.getAuthentication<ApiKeyAuth>('api_key').apiKeyPrefix = 'Bearer';
+// TODO Configure HTTP Bearer authorization: bearer
+// Case 1. Use String Token
+//defaultApiClient.getAuthentication<HttpBearerAuth>('bearer').setAccessToken('YOUR_ACCESS_TOKEN');
+// Case 2. Use Function which generate token.
+// String yourTokenGeneratorFunction() { ... }
+//defaultApiClient.getAuthentication<HttpBearerAuth>('bearer').setAccessToken(yourTokenGeneratorFunction);
+
+final api_instance = AssetApi();
+final assetBulkUploadCheckDto = AssetBulkUploadCheckDto(); // AssetBulkUploadCheckDto | 
+
+try {
+    final result = api_instance.bulkUploadCheck(assetBulkUploadCheckDto);
+    print(result);
+} catch (e) {
+    print('Exception when calling AssetApi->bulkUploadCheck: $e\n');
+}
+```
+
+### Parameters
+
+Name | Type | Description  | Notes
+------------- | ------------- | ------------- | -------------
+ **assetBulkUploadCheckDto** | [**AssetBulkUploadCheckDto**](AssetBulkUploadCheckDto.md)|  | 
+
+### Return type
+
+[**AssetBulkUploadCheckResponseDto**](AssetBulkUploadCheckResponseDto.md)
+
+### Authorization
+
+[cookie](../README.md#cookie), [api_key](../README.md#api_key), [bearer](../README.md#bearer)
+
+### HTTP request headers
+
+ - **Content-Type**: application/json
+ - **Accept**: application/json
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
 # **checkDuplicateAsset**
 > CheckDuplicateAssetResponseDto checkDuplicateAsset(checkDuplicateAssetDto, key)
 

mobile/openapi/doc/AssetBulkUploadCheckDto.md

@@ -0,0 +1,15 @@
+# openapi.model.AssetBulkUploadCheckDto
+
+## Load the model package
+```dart
+import 'package:openapi/api.dart';
+```
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**assets** | [**List<AssetBulkUploadCheckItem>**](AssetBulkUploadCheckItem.md) |  | [default to const []]
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
+

mobile/openapi/doc/AssetBulkUploadCheckItem.md

@@ -0,0 +1,16 @@
+# openapi.model.AssetBulkUploadCheckItem
+
+## Load the model package
+```dart
+import 'package:openapi/api.dart';
+```
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**id** | **String** |  | 
+**checksum** | **String** |  | 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
+

mobile/openapi/doc/AssetBulkUploadCheckResponseDto.md

@@ -0,0 +1,15 @@
+# openapi.model.AssetBulkUploadCheckResponseDto
+
+## Load the model package
+```dart
+import 'package:openapi/api.dart';
+```
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**results** | [**List<AssetBulkUploadCheckResult>**](AssetBulkUploadCheckResult.md) |  | [default to const []]
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
+

mobile/openapi/doc/AssetBulkUploadCheckResult.md

@@ -0,0 +1,18 @@
+# openapi.model.AssetBulkUploadCheckResult
+
+## Load the model package
+```dart
+import 'package:openapi/api.dart';
+```
+
+## Properties
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**id** | **String** |  | 
+**action** | **String** |  | 
+**reason** | **String** |  | [optional] 
+**assetId** | **String** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
+

mobile/openapi/lib/api.dart

@@ -54,6 +54,10 @@ part 'model/admin_signup_response_dto.dart';
 part 'model/album_count_response_dto.dart';
 part 'model/album_response_dto.dart';
 part 'model/all_job_status_response_dto.dart';
+part 'model/asset_bulk_upload_check_dto.dart';
+part 'model/asset_bulk_upload_check_item.dart';
+part 'model/asset_bulk_upload_check_response_dto.dart';
+part 'model/asset_bulk_upload_check_result.dart';
 part 'model/asset_count_by_time_bucket.dart';
 part 'model/asset_count_by_time_bucket_response_dto.dart';
 part 'model/asset_count_by_user_id_response_dto.dart';

mobile/openapi/lib/api/asset_api.dart

@@ -71,6 +71,58 @@ class AssetApi {
     return null;
   }
 
+  /// Checks if assets exist by checksums
+  ///
+  /// Note: This method returns the HTTP [Response].
+  ///
+  /// Parameters:
+  ///
+  /// * [AssetBulkUploadCheckDto] assetBulkUploadCheckDto (required):
+  Future<Response> bulkUploadCheckWithHttpInfo(AssetBulkUploadCheckDto assetBulkUploadCheckDto,) async {
+    // ignore: prefer_const_declarations
+    final path = r'/asset/bulk-upload-check';
+
+    // ignore: prefer_final_locals
+    Object? postBody = assetBulkUploadCheckDto;
+
+    final queryParams = <QueryParam>[];
+    final headerParams = <String, String>{};
+    final formParams = <String, String>{};
+
+    const contentTypes = <String>['application/json'];
+
+
+    return apiClient.invokeAPI(
+      path,
+      'POST',
+      queryParams,
+      postBody,
+      headerParams,
+      formParams,
+      contentTypes.isEmpty ? null : contentTypes.first,
+    );
+  }
+
+  /// Checks if assets exist by checksums
+  ///
+  /// Parameters:
+  ///
+  /// * [AssetBulkUploadCheckDto] assetBulkUploadCheckDto (required):
+  Future<AssetBulkUploadCheckResponseDto?> bulkUploadCheck(AssetBulkUploadCheckDto assetBulkUploadCheckDto,) async {
+    final response = await bulkUploadCheckWithHttpInfo(assetBulkUploadCheckDto,);
+    if (response.statusCode >= HttpStatus.badRequest) {
+      throw ApiException(response.statusCode, await _decodeBodyBytes(response));
+    }
+    // When a remote server returns no body with a status of 204, we shall not decode it.
+    // At the time of writing this, `dart:convert` will throw an "Unexpected end of input"
+    // FormatException when trying to decode an empty string.
+    if (response.body.isNotEmpty && response.statusCode != HttpStatus.noContent) {
+      return await apiClient.deserializeAsync(await _decodeBodyBytes(response), 'AssetBulkUploadCheckResponseDto',) as AssetBulkUploadCheckResponseDto;
+    
+    }
+    return null;
+  }
+
   /// Check duplicated asset before uploading - for Web upload used
   ///
   /// Note: This method returns the HTTP [Response].

mobile/openapi/lib/api_client.dart

@@ -203,6 +203,14 @@ class ApiClient {
           return AlbumResponseDto.fromJson(value);
         case 'AllJobStatusResponseDto':
           return AllJobStatusResponseDto.fromJson(value);
+        case 'AssetBulkUploadCheckDto':
+          return AssetBulkUploadCheckDto.fromJson(value);
+        case 'AssetBulkUploadCheckItem':
+          return AssetBulkUploadCheckItem.fromJson(value);
+        case 'AssetBulkUploadCheckResponseDto':
+          return AssetBulkUploadCheckResponseDto.fromJson(value);
+        case 'AssetBulkUploadCheckResult':
+          return AssetBulkUploadCheckResult.fromJson(value);
         case 'AssetCountByTimeBucket':
           return AssetCountByTimeBucket.fromJson(value);
         case 'AssetCountByTimeBucketResponseDto':

mobile/openapi/lib/model/asset_bulk_upload_check_dto.dart

@@ -0,0 +1,109 @@
+//
+// AUTO-GENERATED FILE, DO NOT MODIFY!
+//
+// @dart=2.12
+
+// ignore_for_file: unused_element, unused_import
+// ignore_for_file: always_put_required_named_parameters_first
+// ignore_for_file: constant_identifier_names
+// ignore_for_file: lines_longer_than_80_chars
+
+part of openapi.api;
+
+class AssetBulkUploadCheckDto {
+  /// Returns a new [AssetBulkUploadCheckDto] instance.
+  AssetBulkUploadCheckDto({
+    this.assets = const [],
+  });
+
+  List<AssetBulkUploadCheckItem> assets;
+
+  @override
+  bool operator ==(Object other) => identical(this, other) || other is AssetBulkUploadCheckDto &&
+     other.assets == assets;
+
+  @override
+  int get hashCode =>
+    // ignore: unnecessary_parenthesis
+    (assets.hashCode);
+
+  @override
+  String toString() => 'AssetBulkUploadCheckDto[assets=$assets]';
+
+  Map<String, dynamic> toJson() {
+    final json = <String, dynamic>{};
+      json[r'assets'] = this.assets;
+    return json;
+  }
+
+  /// Returns a new [AssetBulkUploadCheckDto] instance and imports its values from
+  /// [value] if it's a [Map], null otherwise.
+  // ignore: prefer_constructors_over_static_methods
+  static AssetBulkUploadCheckDto? fromJson(dynamic value) {
+    if (value is Map) {
+      final json = value.cast<String, dynamic>();
+
+      // Ensure that the map contains the required keys.
+      // Note 1: the values aren't checked for validity beyond being non-null.
+      // Note 2: this code is stripped in release mode!
+      assert(() {
+        requiredKeys.forEach((key) {
+          assert(json.containsKey(key), 'Required key "AssetBulkUploadCheckDto[$key]" is missing from JSON.');
+          assert(json[key] != null, 'Required key "AssetBulkUploadCheckDto[$key]" has a null value in JSON.');
+        });
+        return true;
+      }());
+
+      return AssetBulkUploadCheckDto(
+        assets: AssetBulkUploadCheckItem.listFromJson(json[r'assets']),
+      );
+    }
+    return null;
+  }
+
+  static List<AssetBulkUploadCheckDto> listFromJson(dynamic json, {bool growable = false,}) {
+    final result = <AssetBulkUploadCheckDto>[];
+    if (json is List && json.isNotEmpty) {
+      for (final row in json) {
+        final value = AssetBulkUploadCheckDto.fromJson(row);
+        if (value != null) {
+          result.add(value);
+        }
+      }
+    }
+    return result.toList(growable: growable);
+  }
+
+  static Map<String, AssetBulkUploadCheckDto> mapFromJson(dynamic json) {
+    final map = <String, AssetBulkUploadCheckDto>{};
+    if (json is Map && json.isNotEmpty) {
+      json = json.cast<String, dynamic>(); // ignore: parameter_assignments
+      for (final entry in json.entries) {
+        final value = AssetBulkUploadCheckDto.fromJson(entry.value);
+        if (value != null) {
+          map[entry.key] = value;
+        }
+      }
+    }
+    return map;
+  }
+
+  // maps a json object with a list of AssetBulkUploadCheckDto-objects as value to a dart map
+  static Map<String, List<AssetBulkUploadCheckDto>> mapListFromJson(dynamic json, {bool growable = false,}) {
+    final map = <String, List<AssetBulkUploadCheckDto>>{};
+    if (json is Map && json.isNotEmpty) {
+      // ignore: parameter_assignments
+      json = json.cast<String, dynamic>();
+      for (final entry in json.entries) {
+        map[entry.key] = AssetBulkUploadCheckDto.listFromJson(entry.value, growable: growable,);
+      }
+    }
+    return map;
+  }
+
+  /// The list of required keys that must be present in a JSON.
+  static const requiredKeys = <String>{
+    'assets',
+  };
+}
+

mobile/openapi/lib/model/asset_bulk_upload_check_item.dart

@@ -0,0 +1,117 @@
+//
+// AUTO-GENERATED FILE, DO NOT MODIFY!
+//
+// @dart=2.12
+
+// ignore_for_file: unused_element, unused_import
+// ignore_for_file: always_put_required_named_parameters_first
+// ignore_for_file: constant_identifier_names
+// ignore_for_file: lines_longer_than_80_chars
+
+part of openapi.api;
+
+class AssetBulkUploadCheckItem {
+  /// Returns a new [AssetBulkUploadCheckItem] instance.
+  AssetBulkUploadCheckItem({
+    required this.id,
+    required this.checksum,
+  });
+
+  String id;
+
+  String checksum;
+
+  @override
+  bool operator ==(Object other) => identical(this, other) || other is AssetBulkUploadCheckItem &&
+     other.id == id &&
+     other.checksum == checksum;
+
+  @override
+  int get hashCode =>
+    // ignore: unnecessary_parenthesis
+    (id.hashCode) +
+    (checksum.hashCode);
+
+  @override
+  String toString() => 'AssetBulkUploadCheckItem[id=$id, checksum=$checksum]';
+
+  Map<String, dynamic> toJson() {
+    final json = <String, dynamic>{};
+      json[r'id'] = this.id;
+      json[r'checksum'] = this.checksum;
+    return json;
+  }
+
+  /// Returns a new [AssetBulkUploadCheckItem] instance and imports its values from
+  /// [value] if it's a [Map], null otherwise.
+  // ignore: prefer_constructors_over_static_methods
+  static AssetBulkUploadCheckItem? fromJson(dynamic value) {
+    if (value is Map) {
+      final json = value.cast<String, dynamic>();
+
+      // Ensure that the map contains the required keys.
+      // Note 1: the values aren't checked for validity beyond being non-null.
+      // Note 2: this code is stripped in release mode!
+      assert(() {
+        requiredKeys.forEach((key) {
+          assert(json.containsKey(key), 'Required key "AssetBulkUploadCheckItem[$key]" is missing from JSON.');
+          assert(json[key] != null, 'Required key "AssetBulkUploadCheckItem[$key]" has a null value in JSON.');
+        });
+        return true;
+      }());
+
+      return AssetBulkUploadCheckItem(
+        id: mapValueOfType<String>(json, r'id')!,
+        checksum: mapValueOfType<String>(json, r'checksum')!,
+      );
+    }
+    return null;
+  }
+
+  static List<AssetBulkUploadCheckItem> listFromJson(dynamic json, {bool growable = false,}) {
+    final result = <AssetBulkUploadCheckItem>[];
+    if (json is List && json.isNotEmpty) {
+      for (final row in json) {
+        final value = AssetBulkUploadCheckItem.fromJson(row);
+        if (value != null) {
+          result.add(value);
+        }
+      }
+    }
+    return result.toList(growable: growable);
+  }
+
+  static Map<String, AssetBulkUploadCheckItem> mapFromJson(dynamic json) {
+    final map = <String, AssetBulkUploadCheckItem>{};
+    if (json is Map && json.isNotEmpty) {
+      json = json.cast<String, dynamic>(); // ignore: parameter_assignments
+      for (final entry in json.entries) {
+        final value = AssetBulkUploadCheckItem.fromJson(entry.value);
+        if (value != null) {
+          map[entry.key] = value;
+        }
+      }
+    }
+    return map;
+  }
+
+  // maps a json object with a list of AssetBulkUploadCheckItem-objects as value to a dart map
+  static Map<String, List<AssetBulkUploadCheckItem>> mapListFromJson(dynamic json, {bool growable = false,}) {
+    final map = <String, List<AssetBulkUploadCheckItem>>{};
+    if (json is Map && json.isNotEmpty) {
+      // ignore: parameter_assignments
+      json = json.cast<String, dynamic>();
+      for (final entry in json.entries) {
+        map[entry.key] = AssetBulkUploadCheckItem.listFromJson(entry.value, growable: growable,);
+      }
+    }
+    return map;
+  }
+
+  /// The list of required keys that must be present in a JSON.
+  static const requiredKeys = <String>{
+    'id',
+    'checksum',
+  };
+}
+

mobile/openapi/lib/model/asset_bulk_upload_check_response_dto.dart

@@ -0,0 +1,109 @@
+//
+// AUTO-GENERATED FILE, DO NOT MODIFY!
+//
+// @dart=2.12
+
+// ignore_for_file: unused_element, unused_import
+// ignore_for_file: always_put_required_named_parameters_first
+// ignore_for_file: constant_identifier_names
+// ignore_for_file: lines_longer_than_80_chars
+
+part of openapi.api;
+
+class AssetBulkUploadCheckResponseDto {
+  /// Returns a new [AssetBulkUploadCheckResponseDto] instance.
+  AssetBulkUploadCheckResponseDto({
+    this.results = const [],
+  });
+
+  List<AssetBulkUploadCheckResult> results;
+
+  @override
+  bool operator ==(Object other) => identical(this, other) || other is AssetBulkUploadCheckResponseDto &&
+     other.results == results;
+
+  @override
+  int get hashCode =>
+    // ignore: unnecessary_parenthesis
+    (results.hashCode);
+
+  @override
+  String toString() => 'AssetBulkUploadCheckResponseDto[results=$results]';
+
+  Map<String, dynamic> toJson() {
+    final json = <String, dynamic>{};
+      json[r'results'] = this.results;
+    return json;
+  }
+
+  /// Returns a new [AssetBulkUploadCheckResponseDto] instance and imports its values from
+  /// [value] if it's a [Map], null otherwise.
+  // ignore: prefer_constructors_over_static_methods
+  static AssetBulkUploadCheckResponseDto? fromJson(dynamic value) {
+    if (value is Map) {
+      final json = value.cast<String, dynamic>();
+
+      // Ensure that the map contains the required keys.
+      // Note 1: the values aren't checked for validity beyond being non-null.
+      // Note 2: this code is stripped in release mode!
+      assert(() {
+        requiredKeys.forEach((key) {
+          assert(json.containsKey(key), 'Required key "AssetBulkUploadCheckResponseDto[$key]" is missing from JSON.');
+          assert(json[key] != null, 'Required key "AssetBulkUploadCheckResponseDto[$key]" has a null value in JSON.');
+        });
+        return true;
+      }());
+
+      return AssetBulkUploadCheckResponseDto(
+        results: AssetBulkUploadCheckResult.listFromJson(json[r'results']),
+      );
+    }
+    return null;
+  }
+
+  static List<AssetBulkUploadCheckResponseDto> listFromJson(dynamic json, {bool growable = false,}) {
+    final result = <AssetBulkUploadCheckResponseDto>[];
+    if (json is List && json.isNotEmpty) {
+      for (final row in json) {
+        final value = AssetBulkUploadCheckResponseDto.fromJson(row);
+        if (value != null) {
+          result.add(value);
+        }
+      }
+    }
+    return result.toList(growable: growable);
+  }
+
+  static Map<String, AssetBulkUploadCheckResponseDto> mapFromJson(dynamic json) {
+    final map = <String, AssetBulkUploadCheckResponseDto>{};
+    if (json is Map && json.isNotEmpty) {
+      json = json.cast<String, dynamic>(); // ignore: parameter_assignments
+      for (final entry in json.entries) {
+        final value = AssetBulkUploadCheckResponseDto.fromJson(entry.value);
+        if (value != null) {
+          map[entry.key] = value;
+        }
+      }
+    }
+    return map;
+  }
+
+  // maps a json object with a list of AssetBulkUploadCheckResponseDto-objects as value to a dart map
+  static Map<String, List<AssetBulkUploadCheckResponseDto>> mapListFromJson(dynamic json, {bool growable = false,}) {
+    final map = <String, List<AssetBulkUploadCheckResponseDto>>{};
+    if (json is Map && json.isNotEmpty) {
+      // ignore: parameter_assignments
+      json = json.cast<String, dynamic>();
+      for (final entry in json.entries) {
+        map[entry.key] = AssetBulkUploadCheckResponseDto.listFromJson(entry.value, growable: growable,);
+      }
+    }
+    return map;
+  }
+
+  /// The list of required keys that must be present in a JSON.
+  static const requiredKeys = <String>{
+    'results',
+  };
+}
+

mobile/openapi/lib/model/asset_bulk_upload_check_result.dart

@@ -0,0 +1,293 @@
+//
+// AUTO-GENERATED FILE, DO NOT MODIFY!
+//
+// @dart=2.12
+
+// ignore_for_file: unused_element, unused_import
+// ignore_for_file: always_put_required_named_parameters_first
+// ignore_for_file: constant_identifier_names
+// ignore_for_file: lines_longer_than_80_chars
+
+part of openapi.api;
+
+class AssetBulkUploadCheckResult {
+  /// Returns a new [AssetBulkUploadCheckResult] instance.
+  AssetBulkUploadCheckResult({
+    required this.id,
+    required this.action,
+    this.reason,
+    this.assetId,
+  });
+
+  String id;
+
+  AssetBulkUploadCheckResultActionEnum action;
+
+  AssetBulkUploadCheckResultReasonEnum? reason;
+
+  ///
+  /// Please note: This property should have been non-nullable! Since the specification file
+  /// does not include a default value (using the "default:" property), however, the generated
+  /// source code must fall back to having a nullable type.
+  /// Consider adding a "default:" property in the specification file to hide this note.
+  ///
+  String? assetId;
+
+  @override
+  bool operator ==(Object other) => identical(this, other) || other is AssetBulkUploadCheckResult &&
+     other.id == id &&
+     other.action == action &&
+     other.reason == reason &&
+     other.assetId == assetId;
+
+  @override
+  int get hashCode =>
+    // ignore: unnecessary_parenthesis
+    (id.hashCode) +
+    (action.hashCode) +
+    (reason == null ? 0 : reason!.hashCode) +
+    (assetId == null ? 0 : assetId!.hashCode);
+
+  @override
+  String toString() => 'AssetBulkUploadCheckResult[id=$id, action=$action, reason=$reason, assetId=$assetId]';
+
+  Map<String, dynamic> toJson() {
+    final json = <String, dynamic>{};
+      json[r'id'] = this.id;
+      json[r'action'] = this.action;
+    if (this.reason != null) {
+      json[r'reason'] = this.reason;
+    } else {
+      // json[r'reason'] = null;
+    }
+    if (this.assetId != null) {
+      json[r'assetId'] = this.assetId;
+    } else {
+      // json[r'assetId'] = null;
+    }
+    return json;
+  }
+
+  /// Returns a new [AssetBulkUploadCheckResult] instance and imports its values from
+  /// [value] if it's a [Map], null otherwise.
+  // ignore: prefer_constructors_over_static_methods
+  static AssetBulkUploadCheckResult? fromJson(dynamic value) {
+    if (value is Map) {
+      final json = value.cast<String, dynamic>();
+
+      // Ensure that the map contains the required keys.
+      // Note 1: the values aren't checked for validity beyond being non-null.
+      // Note 2: this code is stripped in release mode!
+      assert(() {
+        requiredKeys.forEach((key) {
+          assert(json.containsKey(key), 'Required key "AssetBulkUploadCheckResult[$key]" is missing from JSON.');
+          assert(json[key] != null, 'Required key "AssetBulkUploadCheckResult[$key]" has a null value in JSON.');
+        });
+        return true;
+      }());
+
+      return AssetBulkUploadCheckResult(
+        id: mapValueOfType<String>(json, r'id')!,
+        action: AssetBulkUploadCheckResultActionEnum.fromJson(json[r'action'])!,
+        reason: AssetBulkUploadCheckResultReasonEnum.fromJson(json[r'reason']),
+        assetId: mapValueOfType<String>(json, r'assetId'),
+      );
+    }
+    return null;
+  }
+
+  static List<AssetBulkUploadCheckResult> listFromJson(dynamic json, {bool growable = false,}) {
+    final result = <AssetBulkUploadCheckResult>[];
+    if (json is List && json.isNotEmpty) {
+      for (final row in json) {
+        final value = AssetBulkUploadCheckResult.fromJson(row);
+        if (value != null) {
+          result.add(value);
+        }
+      }
+    }
+    return result.toList(growable: growable);
+  }
+
+  static Map<String, AssetBulkUploadCheckResult> mapFromJson(dynamic json) {
+    final map = <String, AssetBulkUploadCheckResult>{};
+    if (json is Map && json.isNotEmpty) {
+      json = json.cast<String, dynamic>(); // ignore: parameter_assignments
+      for (final entry in json.entries) {
+        final value = AssetBulkUploadCheckResult.fromJson(entry.value);
+        if (value != null) {
+          map[entry.key] = value;
+        }
+      }
+    }
+    return map;
+  }
+
+  // maps a json object with a list of AssetBulkUploadCheckResult-objects as value to a dart map
+  static Map<String, List<AssetBulkUploadCheckResult>> mapListFromJson(dynamic json, {bool growable = false,}) {
+    final map = <String, List<AssetBulkUploadCheckResult>>{};
+    if (json is Map && json.isNotEmpty) {
+      // ignore: parameter_assignments
+      json = json.cast<String, dynamic>();
+      for (final entry in json.entries) {
+        map[entry.key] = AssetBulkUploadCheckResult.listFromJson(entry.value, growable: growable,);
+      }
+    }
+    return map;
+  }
+
+  /// The list of required keys that must be present in a JSON.
+  static const requiredKeys = <String>{
+    'id',
+    'action',
+  };
+}
+
+
+class AssetBulkUploadCheckResultActionEnum {
+  /// Instantiate a new enum with the provided [value].
+  const AssetBulkUploadCheckResultActionEnum._(this.value);
+
+  /// The underlying value of this enum member.
+  final String value;
+
+  @override
+  String toString() => value;
+
+  String toJson() => value;
+
+  static const accept = AssetBulkUploadCheckResultActionEnum._(r'accept');
+  static const reject = AssetBulkUploadCheckResultActionEnum._(r'reject');
+
+  /// List of all possible values in this [enum][AssetBulkUploadCheckResultActionEnum].
+  static const values = <AssetBulkUploadCheckResultActionEnum>[
+    accept,
+    reject,
+  ];
+
+  static AssetBulkUploadCheckResultActionEnum? fromJson(dynamic value) => AssetBulkUploadCheckResultActionEnumTypeTransformer().decode(value);
+
+  static List<AssetBulkUploadCheckResultActionEnum>? listFromJson(dynamic json, {bool growable = false,}) {
+    final result = <AssetBulkUploadCheckResultActionEnum>[];
+    if (json is List && json.isNotEmpty) {
+      for (final row in json) {
+        final value = AssetBulkUploadCheckResultActionEnum.fromJson(row);
+        if (value != null) {
+          result.add(value);
+        }
+      }
+    }
+    return result.toList(growable: growable);
+  }
+}
+
+/// Transformation class that can [encode] an instance of [AssetBulkUploadCheckResultActionEnum] to String,
+/// and [decode] dynamic data back to [AssetBulkUploadCheckResultActionEnum].
+class AssetBulkUploadCheckResultActionEnumTypeTransformer {
+  factory AssetBulkUploadCheckResultActionEnumTypeTransformer() => _instance ??= const AssetBulkUploadCheckResultActionEnumTypeTransformer._();
+
+  const AssetBulkUploadCheckResultActionEnumTypeTransformer._();
+
+  String encode(AssetBulkUploadCheckResultActionEnum data) => data.value;
+
+  /// Decodes a [dynamic value][data] to a AssetBulkUploadCheckResultActionEnum.
+  ///
+  /// If [allowNull] is true and the [dynamic value][data] cannot be decoded successfully,
+  /// then null is returned. However, if [allowNull] is false and the [dynamic value][data]
+  /// cannot be decoded successfully, then an [UnimplementedError] is thrown.
+  ///
+  /// The [allowNull] is very handy when an API changes and a new enum value is added or removed,
+  /// and users are still using an old app with the old code.
+  AssetBulkUploadCheckResultActionEnum? decode(dynamic data, {bool allowNull = true}) {
+    if (data != null) {
+      switch (data) {
+        case r'accept': return AssetBulkUploadCheckResultActionEnum.accept;
+        case r'reject': return AssetBulkUploadCheckResultActionEnum.reject;
+        default:
+          if (!allowNull) {
+            throw ArgumentError('Unknown enum value to decode: $data');
+          }
+      }
+    }
+    return null;
+  }
+
+  /// Singleton [AssetBulkUploadCheckResultActionEnumTypeTransformer] instance.
+  static AssetBulkUploadCheckResultActionEnumTypeTransformer? _instance;
+}
+
+
+
+class AssetBulkUploadCheckResultReasonEnum {
+  /// Instantiate a new enum with the provided [value].
+  const AssetBulkUploadCheckResultReasonEnum._(this.value);
+
+  /// The underlying value of this enum member.
+  final String value;
+
+  @override
+  String toString() => value;
+
+  String toJson() => value;
+
+  static const duplicate = AssetBulkUploadCheckResultReasonEnum._(r'duplicate');
+  static const unsupportedFormat = AssetBulkUploadCheckResultReasonEnum._(r'unsupported-format');
+
+  /// List of all possible values in this [enum][AssetBulkUploadCheckResultReasonEnum].
+  static const values = <AssetBulkUploadCheckResultReasonEnum>[
+    duplicate,
+    unsupportedFormat,
+  ];
+
+  static AssetBulkUploadCheckResultReasonEnum? fromJson(dynamic value) => AssetBulkUploadCheckResultReasonEnumTypeTransformer().decode(value);
+
+  static List<AssetBulkUploadCheckResultReasonEnum>? listFromJson(dynamic json, {bool growable = false,}) {
+    final result = <AssetBulkUploadCheckResultReasonEnum>[];
+    if (json is List && json.isNotEmpty) {
+      for (final row in json) {
+        final value = AssetBulkUploadCheckResultReasonEnum.fromJson(row);
+        if (value != null) {
+          result.add(value);
+        }
+      }
+    }
+    return result.toList(growable: growable);
+  }
+}
+
+/// Transformation class that can [encode] an instance of [AssetBulkUploadCheckResultReasonEnum] to String,
+/// and [decode] dynamic data back to [AssetBulkUploadCheckResultReasonEnum].
+class AssetBulkUploadCheckResultReasonEnumTypeTransformer {
+  factory AssetBulkUploadCheckResultReasonEnumTypeTransformer() => _instance ??= const AssetBulkUploadCheckResultReasonEnumTypeTransformer._();
+
+  const AssetBulkUploadCheckResultReasonEnumTypeTransformer._();
+
+  String encode(AssetBulkUploadCheckResultReasonEnum data) => data.value;
+
+  /// Decodes a [dynamic value][data] to a AssetBulkUploadCheckResultReasonEnum.
+  ///
+  /// If [allowNull] is true and the [dynamic value][data] cannot be decoded successfully,
+  /// then null is returned. However, if [allowNull] is false and the [dynamic value][data]
+  /// cannot be decoded successfully, then an [UnimplementedError] is thrown.
+  ///
+  /// The [allowNull] is very handy when an API changes and a new enum value is added or removed,
+  /// and users are still using an old app with the old code.
+  AssetBulkUploadCheckResultReasonEnum? decode(dynamic data, {bool allowNull = true}) {
+    if (data != null) {
+      switch (data) {
+        case r'duplicate': return AssetBulkUploadCheckResultReasonEnum.duplicate;
+        case r'unsupported-format': return AssetBulkUploadCheckResultReasonEnum.unsupportedFormat;
+        default:
+          if (!allowNull) {
+            throw ArgumentError('Unknown enum value to decode: $data');
+          }
+      }
+    }
+    return null;
+  }
+
+  /// Singleton [AssetBulkUploadCheckResultReasonEnumTypeTransformer] instance.
+  static AssetBulkUploadCheckResultReasonEnumTypeTransformer? _instance;
+}
+
+

mobile/openapi/test/asset_api_test.dart

@@ -22,6 +22,13 @@ void main() {
       // TODO
     });
 
+    // Checks if assets exist by checksums
+    //
+    //Future<AssetBulkUploadCheckResponseDto> bulkUploadCheck(AssetBulkUploadCheckDto assetBulkUploadCheckDto) async
+    test('test bulkUploadCheck', () async {
+      // TODO
+    });
+
     // Check duplicated asset before uploading - for Web upload used
     //
     //Future<CheckDuplicateAssetResponseDto> checkDuplicateAsset(CheckDuplicateAssetDto checkDuplicateAssetDto, { String key }) async

mobile/openapi/test/asset_bulk_upload_check_dto_test.dart

@@ -0,0 +1,27 @@
+//
+// AUTO-GENERATED FILE, DO NOT MODIFY!
+//
+// @dart=2.12
+
+// ignore_for_file: unused_element, unused_import
+// ignore_for_file: always_put_required_named_parameters_first
+// ignore_for_file: constant_identifier_names
+// ignore_for_file: lines_longer_than_80_chars
+
+import 'package:openapi/api.dart';
+import 'package:test/test.dart';
+
+// tests for AssetBulkUploadCheckDto
+void main() {
+  // final instance = AssetBulkUploadCheckDto();
+
+  group('test AssetBulkUploadCheckDto', () {
+    // List<AssetBulkUploadCheckItem> assets (default value: const [])
+    test('to test the property `assets`', () async {
+      // TODO
+    });
+
+
+  });
+
+}

mobile/openapi/test/asset_bulk_upload_check_item_test.dart

@@ -0,0 +1,32 @@
+//
+// AUTO-GENERATED FILE, DO NOT MODIFY!
+//
+// @dart=2.12
+
+// ignore_for_file: unused_element, unused_import
+// ignore_for_file: always_put_required_named_parameters_first
+// ignore_for_file: constant_identifier_names
+// ignore_for_file: lines_longer_than_80_chars
+
+import 'package:openapi/api.dart';
+import 'package:test/test.dart';
+
+// tests for AssetBulkUploadCheckItem
+void main() {
+  // final instance = AssetBulkUploadCheckItem();
+
+  group('test AssetBulkUploadCheckItem', () {
+    // String id
+    test('to test the property `id`', () async {
+      // TODO
+    });
+
+    // String checksum
+    test('to test the property `checksum`', () async {
+      // TODO
+    });
+
+
+  });
+
+}

mobile/openapi/test/asset_bulk_upload_check_response_dto_test.dart

@@ -0,0 +1,27 @@
+//
+// AUTO-GENERATED FILE, DO NOT MODIFY!
+//
+// @dart=2.12
+
+// ignore_for_file: unused_element, unused_import
+// ignore_for_file: always_put_required_named_parameters_first
+// ignore_for_file: constant_identifier_names
+// ignore_for_file: lines_longer_than_80_chars
+
+import 'package:openapi/api.dart';
+import 'package:test/test.dart';
+
+// tests for AssetBulkUploadCheckResponseDto
+void main() {
+  // final instance = AssetBulkUploadCheckResponseDto();
+
+  group('test AssetBulkUploadCheckResponseDto', () {
+    // List<AssetBulkUploadCheckResult> results (default value: const [])
+    test('to test the property `results`', () async {
+      // TODO
+    });
+
+
+  });
+
+}

mobile/openapi/test/asset_bulk_upload_check_result_test.dart

@@ -0,0 +1,42 @@
+//
+// AUTO-GENERATED FILE, DO NOT MODIFY!
+//
+// @dart=2.12
+
+// ignore_for_file: unused_element, unused_import
+// ignore_for_file: always_put_required_named_parameters_first
+// ignore_for_file: constant_identifier_names
+// ignore_for_file: lines_longer_than_80_chars
+
+import 'package:openapi/api.dart';
+import 'package:test/test.dart';
+
+// tests for AssetBulkUploadCheckResult
+void main() {
+  // final instance = AssetBulkUploadCheckResult();
+
+  group('test AssetBulkUploadCheckResult', () {
+    // String id
+    test('to test the property `id`', () async {
+      // TODO
+    });
+
+    // String action
+    test('to test the property `action`', () async {
+      // TODO
+    });
+
+    // String reason
+    test('to test the property `reason`', () async {
+      // TODO
+    });
+
+    // String assetId
+    test('to test the property `assetId`', () async {
+      // TODO
+    });
+
+
+  });
+
+}

server/apps/immich/src/api-v1/asset/asset-repository.ts

@@ -10,13 +10,17 @@ import { TimeGroupEnum } from './dto/get-asset-count-by-time-bucket.dto';
 import { GetAssetByTimeBucketDto } from './dto/get-asset-by-time-bucket.dto';
 import { AssetCountByUserIdResponseDto } from './response-dto/asset-count-by-user-id-response.dto';
 import { CheckExistingAssetsDto } from './dto/check-existing-assets.dto';
-import { CheckExistingAssetsResponseDto } from './response-dto/check-existing-assets-response.dto';
 import { In } from 'typeorm/find-options/operator/In';
 import { UpdateAssetDto } from './dto/update-asset.dto';
 import { ITagRepository } from '../tag/tag.repository';
 import { IsNull, Not } from 'typeorm';
 import { AssetSearchDto } from './dto/asset-search.dto';
 
+export interface AssetCheck {
+  id: string;
+  checksum: Buffer;
+}
+
 export interface IAssetRepository {
   get(id: string): Promise<AssetEntity | null>;
   create(
@@ -38,11 +42,8 @@ export interface IAssetRepository {
   getAssetCountByUserId(userId: string): Promise<AssetCountByUserIdResponseDto>;
   getArchivedAssetCountByUserId(userId: string): Promise<AssetCountByUserIdResponseDto>;
   getAssetByTimeBucket(userId: string, getAssetByTimeBucketDto: GetAssetByTimeBucketDto): Promise<AssetEntity[]>;
-  getAssetByChecksum(userId: string, checksum: Buffer): Promise<AssetEntity>;
+  getAssetsByChecksums(userId: string, checksums: Buffer[]): Promise<AssetCheck[]>;
-  getExistingAssets(
+  getExistingAssets(userId: string, checkDuplicateAssetDto: CheckExistingAssetsDto): Promise<string[]>;
-    userId: string,
-    checkDuplicateAssetDto: CheckExistingAssetsDto,
-  ): Promise<CheckExistingAssetsResponseDto>;
   countByIdAndUser(assetId: string, userId: string): Promise<number>;
 }
 
@@ -310,41 +311,39 @@ export class AssetRepository implements IAssetRepository {
    * @returns Promise<string[]> - Array of assetIds belong to the device
    */
   async getAllByDeviceId(ownerId: string, deviceId: string): Promise<string[]> {
-    const rows = await this.assetRepository.find({
+    const items = await this.assetRepository.find({
+      select: { deviceAssetId: true },
       where: {
         ownerId,
         deviceId,
         isVisible: true,
       },
-      select: ['deviceAssetId'],
     });
-    const res: string[] = [];
-    rows.forEach((v) => res.push(v.deviceAssetId));
 
-    return res;
+    return items.map((asset) => asset.deviceAssetId);
   }
 
   /**
-   * Get asset by checksum on the database
+   * Get assets by checksums on the database
    * @param ownerId
-   * @param checksum
+   * @param checksums
    *
    */
-  getAssetByChecksum(ownerId: string, checksum: Buffer): Promise<AssetEntity> {
+  async getAssetsByChecksums(ownerId: string, checksums: Buffer[]): Promise<AssetCheck[]> {
-    return this.assetRepository.findOneOrFail({
+    return this.assetRepository.find({
+      select: {
+        id: true,
+        checksum: true,
+      },
       where: {
         ownerId,
-        checksum,
+        checksum: In(checksums),
       },
-      relations: ['exifInfo'],
     });
   }
 
-  async getExistingAssets(
+  async getExistingAssets(ownerId: string, checkDuplicateAssetDto: CheckExistingAssetsDto): Promise<string[]> {
-    ownerId: string,
+    const assets = await this.assetRepository.find({
-    checkDuplicateAssetDto: CheckExistingAssetsDto,
-  ): Promise<CheckExistingAssetsResponseDto> {
-    const existingAssets = await this.assetRepository.find({
       select: { deviceAssetId: true },
       where: {
         deviceAssetId: In(checkDuplicateAssetDto.deviceAssetIds),
@@ -352,7 +351,7 @@ export class AssetRepository implements IAssetRepository {
         ownerId,
       },
     });
-    return new CheckExistingAssetsResponseDto(existingAssets.map((a) => a.deviceAssetId));
+    return assets.map((asset) => asset.deviceAssetId);
   }
 
   async countByIdAndUser(assetId: string, ownerId: string): Promise<number> {

server/apps/immich/src/api-v1/asset/asset.controller.ts

@@ -57,6 +57,8 @@ import { AssetSearchDto } from './dto/asset-search.dto';
 import { assetUploadOption, ImmichFile } from '../../config/asset-upload.config';
 import FileNotEmptyValidator from '../validation/file-not-empty-validator';
 import { RemoveAssetsDto } from '../album/dto/remove-assets.dto';
+import { AssetBulkUploadCheckDto } from './dto/asset-check.dto';
+import { AssetBulkUploadCheckResponseDto } from './response-dto/asset-check-response.dto';
 import { AssetIdDto } from './dto/asset-id.dto';
 import { DeviceIdDto } from './dto/device-id.dto';
 
@@ -332,6 +334,19 @@ export class AssetController {
     return await this.assetService.checkExistingAssets(authUser, checkExistingAssetsDto);
   }
 
+  /**
+   * Checks if assets exist by checksums
+   */
+  @Authenticated()
+  @Post('/bulk-upload-check')
+  @HttpCode(200)
+  bulkUploadCheck(
+    @GetAuthUser() authUser: AuthUserDto,
+    @Body(ValidationPipe) dto: AssetBulkUploadCheckDto,
+  ): Promise<AssetBulkUploadCheckResponseDto> {
+    return this.assetService.bulkUploadCheck(authUser, dto);
+  }
+
   @Authenticated()
   @Post('/shared-link')
   async createAssetsSharedLink(

server/apps/immich/src/api-v1/asset/asset.core.ts

@@ -17,7 +17,7 @@ export class AssetCore {
       owner: { id: authUser.id } as UserEntity,
 
       mimeType: file.mimeType,
-      checksum: file.checksum || null,
+      checksum: file.checksum,
       originalPath: file.originalPath,
 
       deviceAssetId: dto.deviceAssetId,

server/apps/immich/src/api-v1/asset/asset.service.spec.ts

@@ -157,7 +157,7 @@ describe('AssetService', () => {
       getLocationsByUserId: jest.fn(),
       getSearchPropertiesByUserId: jest.fn(),
       getAssetByTimeBucket: jest.fn(),
-      getAssetByChecksum: jest.fn(),
+      getAssetsByChecksums: jest.fn(),
       getAssetCountByUserId: jest.fn(),
       getArchivedAssetCountByUserId: jest.fn(),
       getExistingAssets: jest.fn(),
@@ -299,7 +299,7 @@ describe('AssetService', () => {
       (error as any).constraint = 'UQ_userid_checksum';
 
       assetRepositoryMock.create.mockRejectedValue(error);
-      assetRepositoryMock.getAssetByChecksum.mockResolvedValue(_getAsset_1());
+      assetRepositoryMock.getAssetsByChecksums.mockResolvedValue([_getAsset_1()]);
 
       await expect(sut.uploadFile(authStub.user1, dto, file)).resolves.toEqual({ duplicate: true, id: 'id_1' });
 

server/apps/immich/src/api-v1/asset/asset.service.ts

@@ -63,6 +63,12 @@ import { mapSharedLink, SharedLinkResponseDto } from '@app/domain';
 import { AssetSearchDto } from './dto/asset-search.dto';
 import { AddAssetsDto } from '../album/dto/add-assets.dto';
 import { RemoveAssetsDto } from '../album/dto/remove-assets.dto';
+import { AssetBulkUploadCheckDto } from './dto/asset-check.dto';
+import {
+  AssetUploadAction,
+  AssetRejectReason,
+  AssetBulkUploadCheckResponseDto,
+} from './response-dto/asset-check-response.dto';
 
 const fileInfo = promisify(stat);
 
@@ -128,7 +134,8 @@ export class AssetService {
 
       // handle duplicates with a success response
       if (error instanceof QueryFailedError && (error as any).constraint === 'UQ_userid_checksum') {
-        const duplicate = await this.getAssetByChecksum(authUser.id, file.checksum);
+        const checksums = [file.checksum, livePhotoFile?.checksum].filter((checksum): checksum is Buffer => !!checksum);
+        const [duplicate] = await this._assetRepository.getAssetsByChecksums(authUser.id, checksums);
         return { id: duplicate.id, duplicate: true };
       }
 
@@ -463,7 +470,40 @@ export class AssetService {
     authUser: AuthUserDto,
     checkExistingAssetsDto: CheckExistingAssetsDto,
   ): Promise<CheckExistingAssetsResponseDto> {
-    return this._assetRepository.getExistingAssets(authUser.id, checkExistingAssetsDto);
+    return {
+      existingIds: await this._assetRepository.getExistingAssets(authUser.id, checkExistingAssetsDto),
+    };
+  }
+
+  async bulkUploadCheck(authUser: AuthUserDto, dto: AssetBulkUploadCheckDto): Promise<AssetBulkUploadCheckResponseDto> {
+    const checksums: Buffer[] = dto.assets.map((asset) => Buffer.from(asset.checksum, 'hex'));
+    const results = await this._assetRepository.getAssetsByChecksums(authUser.id, checksums);
+    const resultsMap: Record<string, string> = {};
+
+    for (const { id, checksum } of results) {
+      resultsMap[checksum.toString('hex')] = id;
+    }
+
+    return {
+      results: dto.assets.map(({ id, checksum }) => {
+        const duplicate = resultsMap[checksum];
+        if (duplicate) {
+          return {
+            id,
+            assetId: duplicate,
+            action: AssetUploadAction.REJECT,
+            reason: AssetRejectReason.DUPLICATE,
+          };
+        }
+
+        // TODO mime-check
+
+        return {
+          id,
+          action: AssetUploadAction.ACCEPT,
+        };
+      }),
+    };
   }
 
   async getAssetCountByTimeBucket(
@@ -482,10 +522,6 @@ export class AssetService {
     return mapAssetCountByTimeBucket(result);
   }
 
-  getAssetByChecksum(userId: string, checksum: Buffer) {
-    return this._assetRepository.getAssetByChecksum(userId, checksum);
-  }
-
   getAssetCountByUserId(authUser: AuthUserDto): Promise<AssetCountByUserIdResponseDto> {
     return this._assetRepository.getAssetCountByUserId(authUser.id);
   }

server/apps/immich/src/api-v1/asset/dto/asset-check.dto.ts

@@ -0,0 +1,19 @@
+import { Type } from 'class-transformer';
+import { IsArray, IsNotEmpty, IsString, ValidateNested } from 'class-validator';
+
+export class AssetBulkUploadCheckItem {
+  @IsString()
+  @IsNotEmpty()
+  id!: string;
+
+  @IsString()
+  @IsNotEmpty()
+  checksum!: string;
+}
+
+export class AssetBulkUploadCheckDto {
+  @IsArray()
+  @ValidateNested({ each: true })
+  @Type(() => AssetBulkUploadCheckItem)
+  assets!: AssetBulkUploadCheckItem[];
+}

server/apps/immich/src/api-v1/asset/response-dto/asset-check-response.dto.ts

@@ -0,0 +1,20 @@
+export class AssetBulkUploadCheckResult {
+  id!: string;
+  action!: AssetUploadAction;
+  reason?: AssetRejectReason;
+  assetId?: string;
+}
+
+export class AssetBulkUploadCheckResponseDto {
+  results!: AssetBulkUploadCheckResult[];
+}
+
+export enum AssetUploadAction {
+  ACCEPT = 'accept',
+  REJECT = 'reject',
+}
+
+export enum AssetRejectReason {
+  DUPLICATE = 'duplicate',
+  UNSUPPORTED_FORMAT = 'unsupported-format',
+}

server/apps/immich/src/api-v1/asset/response-dto/check-existing-assets-response.dto.ts

@@ -1,6 +1,3 @@
 export class CheckExistingAssetsResponseDto {
-  constructor(existingIds: string[]) {
+  existingIds!: string[];
-    this.existingIds = existingIds;
-  }
-  existingIds: string[];
 }

server/immich-openapi-specs.json

@@ -3251,6 +3251,49 @@
         ]
       }
     },
+    "/asset/bulk-upload-check": {
+      "post": {
+        "operationId": "bulkUploadCheck",
+        "description": "Checks if assets exist by checksums",
+        "parameters": [],
+        "requestBody": {
+          "required": true,
+          "content": {
+            "application/json": {
+              "schema": {
+                "$ref": "#/components/schemas/AssetBulkUploadCheckDto"
+              }
+            }
+          }
+        },
+        "responses": {
+          "200": {
+            "description": "",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/AssetBulkUploadCheckResponseDto"
+                }
+              }
+            }
+          }
+        },
+        "tags": [
+          "Asset"
+        ],
+        "security": [
+          {
+            "bearer": []
+          },
+          {
+            "cookie": []
+          },
+          {
+            "api_key": []
+          }
+        ]
+      }
+    },
     "/asset/shared-link": {
       "post": {
         "operationId": "createAssetsSharedLink",
@@ -6046,6 +6089,78 @@
           "existingIds"
         ]
       },
+      "AssetBulkUploadCheckItem": {
+        "type": "object",
+        "properties": {
+          "id": {
+            "type": "string"
+          },
+          "checksum": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "id",
+          "checksum"
+        ]
+      },
+      "AssetBulkUploadCheckDto": {
+        "type": "object",
+        "properties": {
+          "assets": {
+            "type": "array",
+            "items": {
+              "$ref": "#/components/schemas/AssetBulkUploadCheckItem"
+            }
+          }
+        },
+        "required": [
+          "assets"
+        ]
+      },
+      "AssetBulkUploadCheckResult": {
+        "type": "object",
+        "properties": {
+          "id": {
+            "type": "string"
+          },
+          "action": {
+            "type": "string",
+            "enum": [
+              "accept",
+              "reject"
+            ]
+          },
+          "reason": {
+            "type": "string",
+            "enum": [
+              "duplicate",
+              "unsupported-format"
+            ]
+          },
+          "assetId": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "id",
+          "action"
+        ]
+      },
+      "AssetBulkUploadCheckResponseDto": {
+        "type": "object",
+        "properties": {
+          "results": {
+            "type": "array",
+            "items": {
+              "$ref": "#/components/schemas/AssetBulkUploadCheckResult"
+            }
+          }
+        },
+        "required": [
+          "results"
+        ]
+      },
       "CreateAssetsShareLinkDto": {
         "type": "object",
         "properties": {

server/libs/domain/test/fixtures.ts

@@ -147,6 +147,7 @@ export const assetEntityStub = {
     deviceId: 'device-id',
     originalPath: 'upload/upload/path.ext',
     resizePath: null,
+    checksum: Buffer.from('file hash', 'utf8'),
     type: AssetType.IMAGE,
     webpPath: null,
     encodedVideoPath: null,
@@ -173,6 +174,7 @@ export const assetEntityStub = {
     deviceId: 'device-id',
     originalPath: '/original/path.ext',
     resizePath: '/uploads/user-id/thumbs/path.ext',
+    checksum: Buffer.from('file hash', 'utf8'),
     type: AssetType.IMAGE,
     webpPath: null,
     encodedVideoPath: null,
@@ -201,6 +203,7 @@ export const assetEntityStub = {
     deviceId: 'device-id',
     originalPath: '/original/path.ext',
     resizePath: '/uploads/user-id/thumbs/path.ext',
+    checksum: Buffer.from('file hash', 'utf8'),
     type: AssetType.VIDEO,
     webpPath: null,
     encodedVideoPath: null,
@@ -246,6 +249,7 @@ export const assetEntityStub = {
     owner: userEntityStub.user1,
     ownerId: 'user-id',
     deviceId: 'device-id',
+    checksum: Buffer.from('file hash', 'utf8'),
     originalPath: '/original/path.ext',
     resizePath: '/uploads/user-id/thumbs/path.ext',
     type: AssetType.IMAGE,
@@ -663,6 +667,7 @@ export const sharedLinkStub = {
           type: AssetType.VIDEO,
           originalPath: 'fake_path/jpeg',
           resizePath: '',
+          checksum: Buffer.from('file hash', 'utf8'),
           fileModifiedAt: today.toISOString(),
           fileCreatedAt: today.toISOString(),
           createdAt: today.toISOString(),

server/libs/infra/src/entities/asset.entity.ts

@@ -75,9 +75,9 @@ export class AssetEntity {
   @Column({ type: 'varchar', nullable: true })
   mimeType!: string | null;
 
-  @Column({ type: 'bytea', nullable: true, select: false })
+  @Column({ type: 'bytea' })
-  @Index({ where: `'checksum' IS NOT NULL` }) // avoid null index
+  @Index()
-  checksum?: Buffer | null; // sha1 checksum
+  checksum!: Buffer; // sha1 checksum
 
   @Column({ type: 'varchar', nullable: true })
   duration!: string | null;

server/libs/infra/src/migrations/1684328185099-RequireChecksumNotNull.ts

@@ -0,0 +1,19 @@
+import { MigrationInterface, QueryRunner } from 'typeorm';
+
+export class RequireChecksumNotNull1684328185099 implements MigrationInterface {
+  name = 'removeNotNullFromChecksumIndex1684328185099';
+
+  public async up(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(`DROP INDEX "public"."IDX_64c507300988dd1764f9a6530c"`);
+    await queryRunner.query(`ALTER TABLE "assets" ALTER COLUMN "checksum" SET NOT NULL`);
+    await queryRunner.query(`CREATE INDEX "IDX_8d3efe36c0755849395e6ea866" ON "assets" ("checksum") `);
+  }
+
+  public async down(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(`DROP INDEX "public"."IDX_8d3efe36c0755849395e6ea866"`);
+    await queryRunner.query(`ALTER TABLE "assets" ALTER COLUMN "checksum" DROP NOT NULL`);
+    await queryRunner.query(
+      `CREATE INDEX "IDX_64c507300988dd1764f9a6530c" ON "assets" ("checksum") WHERE ('checksum' IS NOT NULL)`,
+    );
+  }
+}

web/src/api/open-api/api.ts

@@ -346,6 +346,96 @@ export interface AllJobStatusResponseDto {
      */
     'recognize-faces-queue': JobStatusDto;
 }
+/**
+ * 
+ * @export
+ * @interface AssetBulkUploadCheckDto
+ */
+export interface AssetBulkUploadCheckDto {
+    /**
+     * 
+     * @type {Array<AssetBulkUploadCheckItem>}
+     * @memberof AssetBulkUploadCheckDto
+     */
+    'assets': Array<AssetBulkUploadCheckItem>;
+}
+/**
+ * 
+ * @export
+ * @interface AssetBulkUploadCheckItem
+ */
+export interface AssetBulkUploadCheckItem {
+    /**
+     * 
+     * @type {string}
+     * @memberof AssetBulkUploadCheckItem
+     */
+    'id': string;
+    /**
+     * 
+     * @type {string}
+     * @memberof AssetBulkUploadCheckItem
+     */
+    'checksum': string;
+}
+/**
+ * 
+ * @export
+ * @interface AssetBulkUploadCheckResponseDto
+ */
+export interface AssetBulkUploadCheckResponseDto {
+    /**
+     * 
+     * @type {Array<AssetBulkUploadCheckResult>}
+     * @memberof AssetBulkUploadCheckResponseDto
+     */
+    'results': Array<AssetBulkUploadCheckResult>;
+}
+/**
+ * 
+ * @export
+ * @interface AssetBulkUploadCheckResult
+ */
+export interface AssetBulkUploadCheckResult {
+    /**
+     * 
+     * @type {string}
+     * @memberof AssetBulkUploadCheckResult
+     */
+    'id': string;
+    /**
+     * 
+     * @type {string}
+     * @memberof AssetBulkUploadCheckResult
+     */
+    'action': AssetBulkUploadCheckResultActionEnum;
+    /**
+     * 
+     * @type {string}
+     * @memberof AssetBulkUploadCheckResult
+     */
+    'reason'?: AssetBulkUploadCheckResultReasonEnum;
+    /**
+     * 
+     * @type {string}
+     * @memberof AssetBulkUploadCheckResult
+     */
+    'assetId'?: string;
+}
+
+export const AssetBulkUploadCheckResultActionEnum = {
+    Accept: 'accept',
+    Reject: 'reject'
+} as const;
+
+export type AssetBulkUploadCheckResultActionEnum = typeof AssetBulkUploadCheckResultActionEnum[keyof typeof AssetBulkUploadCheckResultActionEnum];
+export const AssetBulkUploadCheckResultReasonEnum = {
+    Duplicate: 'duplicate',
+    UnsupportedFormat: 'unsupported-format'
+} as const;
+
+export type AssetBulkUploadCheckResultReasonEnum = typeof AssetBulkUploadCheckResultReasonEnum[keyof typeof AssetBulkUploadCheckResultReasonEnum];
+
 /**
  * 
  * @export
@@ -4120,6 +4210,50 @@ export const AssetApiAxiosParamCreator = function (configuration?: Configuration
                 options: localVarRequestOptions,
             };
         },
+        /**
+         * Checks if assets exist by checksums
+         * @param {AssetBulkUploadCheckDto} assetBulkUploadCheckDto 
+         * @param {*} [options] Override http request option.
+         * @throws {RequiredError}
+         */
+        bulkUploadCheck: async (assetBulkUploadCheckDto: AssetBulkUploadCheckDto, options: AxiosRequestConfig = {}): Promise<RequestArgs> => {
+            // verify required parameter 'assetBulkUploadCheckDto' is not null or undefined
+            assertParamExists('bulkUploadCheck', 'assetBulkUploadCheckDto', assetBulkUploadCheckDto)
+            const localVarPath = `/asset/bulk-upload-check`;
+            // use dummy base URL string because the URL constructor only accepts absolute URLs.
+            const localVarUrlObj = new URL(localVarPath, DUMMY_BASE_URL);
+            let baseOptions;
+            if (configuration) {
+                baseOptions = configuration.baseOptions;
+            }
+
+            const localVarRequestOptions = { method: 'POST', ...baseOptions, ...options};
+            const localVarHeaderParameter = {} as any;
+            const localVarQueryParameter = {} as any;
+
+            // authentication cookie required
+
+            // authentication api_key required
+            await setApiKeyToObject(localVarHeaderParameter, "x-api-key", configuration)
+
+            // authentication bearer required
+            // http bearer authentication required
+            await setBearerAuthToObject(localVarHeaderParameter, configuration)
+
+
+    
+            localVarHeaderParameter['Content-Type'] = 'application/json';
+
+            setSearchParams(localVarUrlObj, localVarQueryParameter);
+            let headersFromBaseOptions = baseOptions && baseOptions.headers ? baseOptions.headers : {};
+            localVarRequestOptions.headers = {...localVarHeaderParameter, ...headersFromBaseOptions, ...options.headers};
+            localVarRequestOptions.data = serializeDataIfNeeded(assetBulkUploadCheckDto, localVarRequestOptions, configuration)
+
+            return {
+                url: toPathString(localVarUrlObj),
+                options: localVarRequestOptions,
+            };
+        },
         /**
          * Check duplicated asset before uploading - for Web upload used
          * @param {CheckDuplicateAssetDto} checkDuplicateAssetDto 
@@ -5312,6 +5446,16 @@ export const AssetApiFp = function(configuration?: Configuration) {
             const localVarAxiosArgs = await localVarAxiosParamCreator.addAssetsToSharedLink(addAssetsDto, key, options);
             return createRequestFunction(localVarAxiosArgs, globalAxios, BASE_PATH, configuration);
         },
+        /**
+         * Checks if assets exist by checksums
+         * @param {AssetBulkUploadCheckDto} assetBulkUploadCheckDto 
+         * @param {*} [options] Override http request option.
+         * @throws {RequiredError}
+         */
+        async bulkUploadCheck(assetBulkUploadCheckDto: AssetBulkUploadCheckDto, options?: AxiosRequestConfig): Promise<(axios?: AxiosInstance, basePath?: string) => AxiosPromise<AssetBulkUploadCheckResponseDto>> {
+            const localVarAxiosArgs = await localVarAxiosParamCreator.bulkUploadCheck(assetBulkUploadCheckDto, options);
+            return createRequestFunction(localVarAxiosArgs, globalAxios, BASE_PATH, configuration);
+        },
         /**
          * Check duplicated asset before uploading - for Web upload used
          * @param {CheckDuplicateAssetDto} checkDuplicateAssetDto 
@@ -5595,6 +5739,15 @@ export const AssetApiFactory = function (configuration?: Configuration, basePath
         addAssetsToSharedLink(addAssetsDto: AddAssetsDto, key?: string, options?: any): AxiosPromise<SharedLinkResponseDto> {
             return localVarFp.addAssetsToSharedLink(addAssetsDto, key, options).then((request) => request(axios, basePath));
         },
+        /**
+         * Checks if assets exist by checksums
+         * @param {AssetBulkUploadCheckDto} assetBulkUploadCheckDto 
+         * @param {*} [options] Override http request option.
+         * @throws {RequiredError}
+         */
+        bulkUploadCheck(assetBulkUploadCheckDto: AssetBulkUploadCheckDto, options?: any): AxiosPromise<AssetBulkUploadCheckResponseDto> {
+            return localVarFp.bulkUploadCheck(assetBulkUploadCheckDto, options).then((request) => request(axios, basePath));
+        },
         /**
          * Check duplicated asset before uploading - for Web upload used
          * @param {CheckDuplicateAssetDto} checkDuplicateAssetDto 
@@ -5856,6 +6009,17 @@ export class AssetApi extends BaseAPI {
         return AssetApiFp(this.configuration).addAssetsToSharedLink(addAssetsDto, key, options).then((request) => request(this.axios, this.basePath));
     }
 
+    /**
+     * Checks if assets exist by checksums
+     * @param {AssetBulkUploadCheckDto} assetBulkUploadCheckDto 
+     * @param {*} [options] Override http request option.
+     * @throws {RequiredError}
+     * @memberof AssetApi
+     */
+    public bulkUploadCheck(assetBulkUploadCheckDto: AssetBulkUploadCheckDto, options?: AxiosRequestConfig) {
+        return AssetApiFp(this.configuration).bulkUploadCheck(assetBulkUploadCheckDto, options).then((request) => request(this.axios, this.basePath));
+    }
+
     /**
      * Check duplicated asset before uploading - for Web upload used
      * @param {CheckDuplicateAssetDto} checkDuplicateAssetDto 

web/src/lib/utils/file-uploader.ts

@@ -4,7 +4,7 @@ import {
 } from './../components/shared-components/notification/notification';
 import { uploadAssetsStore } from '$lib/stores/upload';
 import type { UploadAsset } from '../models/upload-asset';
-import { api, AssetFileUploadResponseDto } from '@api';
+import { AssetFileUploadResponseDto } from '@api';
 import { addAssetsToAlbum, getFileMimeType, getFilenameExtension } from '$lib/utils/asset-utils';
 import { mergeMap, filter, firstValueFrom, from, of, combineLatestAll } from 'rxjs';
 import axios from 'axios';
@@ -73,7 +73,7 @@ async function fileUploader(
 	const deviceAssetId = 'web' + '-' + asset.name + '-' + asset.lastModified;
 
 	try {
-		// Create and add Unique ID of asset on the device
+		// Create and add pseudo-unique ID of asset on the device
 		formData.append('deviceAssetId', deviceAssetId);
 
 		// Get device id - for web -> use WEB
@@ -102,23 +102,6 @@ async function fileUploader(
 		// failed uploads.
 		formData.append('assetData', new File([asset], asset.name, { type: mimeType }));
 
-		// Check if asset upload on server before performing upload
-		const { data, status } = await api.assetApi.checkDuplicateAsset(
-			{
-				deviceAssetId: String(deviceAssetId),
-				deviceId: 'WEB'
-			},
-			sharedKey
-		);
-
-		if (status === 200 && data.isExist && data.id) {
-			if (albumId) {
-				await addAssetsToAlbum(albumId, [data.id], sharedKey);
-			}
-
-			return data.id;
-		}
-
 		const newUploadAsset: UploadAsset = {
 			id: deviceAssetId,
 			file: asset,