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@ -28,11 +28,10 @@ import {
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} from '@nestjs/common';
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import { InjectRepository } from '@nestjs/typeorm';
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import { Response as Res } from 'express';
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import { constants, createReadStream } from 'fs';
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import { constants } from 'fs';
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import fs from 'fs/promises';
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import path, { extname } from 'path';
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import sanitize from 'sanitize-filename';
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import { pipeline } from 'stream/promises';
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import { QueryFailedError, Repository } from 'typeorm';
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import { UploadRequest } from '../../app.interceptor';
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import { IAssetRepository } from './asset-repository';
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@ -301,13 +300,7 @@ export class AssetService {
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return mapAsset(updatedAsset);
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}
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async getAssetThumbnail(
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authUser: AuthUserDto,
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assetId: string,
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query: GetAssetThumbnailDto,
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res: Res,
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headers: Record<string, string>,
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) {
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async serveThumbnail(authUser: AuthUserDto, assetId: string, query: GetAssetThumbnailDto, res: Res) {
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await this.access.requirePermission(authUser, Permission.ASSET_VIEW, assetId);
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const asset = await this._assetRepository.get(assetId);
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@ -316,7 +309,7 @@ export class AssetService {
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}
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try {
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return this.streamFile(this.getThumbnailPath(asset, query.format), res, headers);
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await this.sendFile(res, this.getThumbnailPath(asset, query.format));
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} catch (e) {
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res.header('Cache-Control', 'none');
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this.logger.error(`Cannot create read stream for asset ${asset.id}`, 'getAssetThumbnail');
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@ -327,42 +320,23 @@ export class AssetService {
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}
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}
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public async serveFile(
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authUser: AuthUserDto,
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assetId: string,
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query: ServeFileDto,
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res: Res,
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headers: Record<string, string>,
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) {
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public async serveFile(authUser: AuthUserDto, assetId: string, query: ServeFileDto, res: Res) {
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// this is not quite right as sometimes this returns the original still
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await this.access.requirePermission(authUser, Permission.ASSET_VIEW, assetId);
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const allowOriginalFile = !!(!authUser.isPublicUser || authUser.isAllowDownload);
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const asset = await this._assetRepository.getById(assetId);
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if (!asset) {
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throw new NotFoundException('Asset does not exist');
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}
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// Handle Sending Images
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if (asset.type == AssetType.IMAGE) {
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try {
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return this.streamFile(this.getServePath(asset, query, allowOriginalFile), res, headers);
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} catch (e) {
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this.logger.error(`Cannot create read stream for asset ${asset.id} ${JSON.stringify(e)}`, 'serveFile[IMAGE]');
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throw new InternalServerErrorException(
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e,
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`Cannot read thumbnail file for asset ${asset.id} - contact your administrator`,
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);
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}
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} else {
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try {
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return this.streamFile(asset.encodedVideoPath || asset.originalPath, res, headers);
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} catch (e: Error | any) {
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this.logger.error(`Error serving VIDEO asset=${asset.id}`, e?.stack);
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throw new InternalServerErrorException(`Failed to serve video asset ${e}`, 'ServeFile');
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}
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}
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const allowOriginalFile = !!(!authUser.isPublicUser || authUser.isAllowDownload);
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const filepath =
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asset.type === AssetType.IMAGE
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? this.getServePath(asset, query, allowOriginalFile)
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: asset.encodedVideoPath || asset.originalPath;
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await this.sendFile(res, filepath);
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}
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public async deleteAll(authUser: AuthUserDto, dto: DeleteAssetDto): Promise<DeleteAssetResponseDto[]> {
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@ -624,64 +598,18 @@ export class AssetService {
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return asset.resizePath;
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}
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private async streamFile(filepath: string, res: Res, headers: Record<string, string>) {
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private async sendFile(res: Res, filepath: string): Promise<void> {
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await fs.access(filepath, constants.R_OK);
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const { size, mtimeNs } = await fs.stat(filepath, { bigint: true });
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res.set('Cache-Control', 'private, max-age=86400, no-transform');
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res.header('Content-Type', mimeTypes.lookup(filepath));
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const range = this.setResRange(res, headers, Number(size));
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// etag
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const etag = `W/"${size}-${mtimeNs}"`;
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res.setHeader('ETag', etag);
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if (etag === headers['if-none-match']) {
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res.status(304);
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return;
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}
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const stream = createReadStream(filepath, range);
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return await pipeline(stream, res).catch((err) => {
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if (err.code !== 'ERR_STREAM_PREMATURE_CLOSE') {
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this.logger.error(err);
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res.sendFile(filepath, { root: process.cwd() }, (error: Error) => {
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if (!error) {
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return;
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}
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});
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}
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private setResRange(res: Res, headers: Record<string, string>, size: number) {
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if (!headers.range) {
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return {};
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}
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/** Extracting Start and End value from Range Header */
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const [startStr, endStr] = headers.range.replace(/bytes=/, '').split('-');
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let start = parseInt(startStr, 10);
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let end = endStr ? parseInt(endStr, 10) : size - 1;
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if (!isNaN(start) && isNaN(end)) {
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start = start;
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end = size - 1;
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}
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if (isNaN(start) && !isNaN(end)) {
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start = size - end;
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end = size - 1;
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}
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// Handle unavailable range request
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if (start >= size || end >= size) {
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console.error('Bad Request');
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res.status(416).set({ 'Content-Range': `bytes */${size}` });
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throw new BadRequestException('Bad Request Range');
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}
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res.status(206).set({
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'Content-Range': `bytes ${start}-${end}/${size}`,
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'Accept-Ranges': 'bytes',
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'Content-Length': end - start + 1,
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if (error.message !== 'Request aborted') {
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this.logger.error(`Unable to send file: ${error.name}`, error.stack);
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}
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});
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return { start, end };
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}
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}
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