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

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,