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enhance(server): downloadUrlでContent-Dispositionからファイル名を取得 (#10150) 

* enhance(server): downloadUrlでContent-Dispositionからファイル名を取得
Resolve #10036
Resolve #4750

* untitled

* オブジェクトストレージのContent-Dispositionのファイル名の拡張子をContent-Typeに添ったものにする

* ✌️

* tiff

* fix filename

* add test

* /files/でもContent-Disposition

* comment

* fix test
This commit is contained in:
tamaina 2023-03-04 16:51:07 +09:00 committed by GitHub
parent 49f0837729
commit 2d551a8598
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6 changed files with 134 additions and 42 deletions
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20
packages/backend/src/core/DownloadService.ts
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@ -6,6 +6,7 @@ import IPCIDR from 'ip-cidr';
import PrivateIp from 'private-ip';
import chalk from 'chalk';
import got, * as Got from 'got';
import { parse } from 'content-disposition';
import { DI } from '@/di-symbols.js';
import type { Config } from '@/config.js';
import { HttpRequestService } from '@/core/HttpRequestService.js';
@ -32,13 +33,18 @@ export class DownloadService {
}
@bindThis
public async downloadUrl(url: string, path: string): Promise<void> {
public async downloadUrl(url: string, path: string): Promise<{
filename: string;
}> {
this.logger.info(`Downloading ${chalk.cyan(url)} to ${chalk.cyanBright(path)} ...`);
const timeout = 30 * 1000;
const operationTimeout = 60 * 1000;
const maxSize = this.config.maxFileSize ?? 262144000;
const urlObj = new URL(url);
let filename = urlObj.pathname.split('/').pop() ?? 'untitled';
const req = got.stream(url, {
headers: {
'User-Agent': this.config.userAgent,
@ -77,6 +83,14 @@ export class DownloadService {
req.destroy();
}
}
const contentDisposition = res.headers['content-disposition'];
if (contentDisposition != null) {
const parsed = parse(contentDisposition);
if (parsed.parameters.filename) {
filename = parsed.parameters.filename;
}
}
}).on('downloadProgress', (progress: Got.Progress) => {
if (progress.transferred > maxSize) {
this.logger.warn(`maxSize exceeded (${progress.transferred} > ${maxSize}) on downloadProgress`);
@ -95,6 +109,10 @@ export class DownloadService {
}
this.logger.succ(`Download finished: ${chalk.cyan(url)}`);
return {
filename,
};
}
@bindThis

44
packages/backend/src/core/DriveService.ts
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@ -34,6 +34,7 @@ import { FileInfoService } from '@/core/FileInfoService.js';
import { bindThis } from '@/decorators.js';
import { RoleService } from '@/core/RoleService.js';
import type S3 from 'aws-sdk/clients/s3.js';
import { correctFilename } from '@/misc/correct-filename.js';
type AddFileArgs = {
/** User who wish to add file */
@ -168,7 +169,7 @@ export class DriveService {
//#region Uploads
this.registerLogger.info(`uploading original: ${key}`);
const uploads = [
this.upload(key, fs.createReadStream(path), type, name),
this.upload(key, fs.createReadStream(path), type, ext, name),
];
if (alts.webpublic) {
@ -176,7 +177,7 @@ export class DriveService {
webpublicUrl = `${ baseUrl }/${ webpublicKey }`;
this.registerLogger.info(`uploading webpublic: ${webpublicKey}`);
uploads.push(this.upload(webpublicKey, alts.webpublic.data, alts.webpublic.type, name));
uploads.push(this.upload(webpublicKey, alts.webpublic.data, alts.webpublic.type, alts.webpublic.ext, name));
}
if (alts.thumbnail) {
@ -184,7 +185,7 @@ export class DriveService {
thumbnailUrl = `${ baseUrl }/${ thumbnailKey }`;
this.registerLogger.info(`uploading thumbnail: ${thumbnailKey}`);
uploads.push(this.upload(thumbnailKey, alts.thumbnail.data, alts.thumbnail.type));
uploads.push(this.upload(thumbnailKey, alts.thumbnail.data, alts.thumbnail.type, alts.thumbnail.ext));
}
await Promise.all(uploads);
@ -360,7 +361,7 @@ export class DriveService {
* Upload to ObjectStorage
*/
@bindThis
private async upload(key: string, stream: fs.ReadStream | Buffer, type: string, filename?: string) {
private async upload(key: string, stream: fs.ReadStream | Buffer, type: string, ext?: string | null, filename?: string) {
if (type === 'image/apng') type = 'image/png';
if (!FILE_TYPE_BROWSERSAFE.includes(type)) type = 'application/octet-stream';
@ -374,7 +375,12 @@ export class DriveService {
CacheControl: 'max-age=31536000, immutable',
} as S3.PutObjectRequest;
if (filename) params.ContentDisposition = contentDisposition('inline', filename);
if (filename) params.ContentDisposition = contentDisposition(
'inline',
// 拡張子からContent-Typeを設定してそうな挙動を示すオブジェクトストレージ (upcloud?) も存在するので、
// 許可されているファイル形式でしか拡張子をつけない
ext ? correctFilename(filename, ext) : filename,
);
if (meta.objectStorageSetPublicRead) params.ACL = 'public-read';
const s3 = this.s3Service.getS3(meta);
@ -466,7 +472,12 @@ export class DriveService {
//}
// detect name
const detectedName = name ?? (info.type.ext ? `untitled.${info.type.ext}` : 'untitled');
const detectedName = correctFilename(
// DriveFile.nameは256文字, validateFileNameは200文字制限であるため、
// extを付加してデータベースの文字数制限に当たることはまずない
(name && this.driveFileEntityService.validateFileName(name)) ? name : 'untitled',
info.type.ext
);
if (user && !force) {
// Check if there is a file with the same hash
@ -736,24 +747,19 @@ export class DriveService {
requestIp = null,
requestHeaders = null,
}: UploadFromUrlArgs): Promise<DriveFile> {
let name = new URL(url).pathname.split('/').pop() ?? null;
if (name == null || !this.driveFileEntityService.validateFileName(name)) {
name = null;
}
// If the comment is same as the name, skip comment
// (image.name is passed in when receiving attachment)
if (comment !== null && name === comment) {
comment = null;
}
// Create temp file
const [path, cleanup] = await createTemp();
try {
// write content at URL to temp file
await this.downloadService.downloadUrl(url, path);
const { filename: name } = await this.downloadService.downloadUrl(url, path);
// If the comment is same as the name, skip comment
// (image.name is passed in when receiving attachment)
if (comment !== null && name === comment) {
comment = null;
}
const driveFile = await this.addFile({ user, path, name, comment, folderId, force, isLink, url, uri, sensitive, requestIp, requestHeaders });
this.downloaderLogger.succ(`Got: ${driveFile.id}`);
return driveFile!;

15
packages/backend/src/misc/correct-filename.ts Normal file
View File

@ -0,0 +1,15 @@
// 与えられた拡張子とファイル名が一致しているかどうかを確認し、
// 一致していない場合は拡張子を付与して返す
export function correctFilename(filename: string, ext: string | null) {
const dotExt = ext ? `.${ext}` : '.unknown';
if (filename.endsWith(dotExt)) {
return filename;
}
if (ext === 'jpg' && filename.endsWith('.jpeg')) {
return filename;
}
if (ext === 'tif' && filename.endsWith('.tiff')) {
return filename;
}
return `${filename}${dotExt}`;
}

48
packages/backend/src/server/FileServerService.ts
View File

@ -22,6 +22,7 @@ import { bindThis } from '@/decorators.js';
import type { FastifyInstance, FastifyRequest, FastifyReply, FastifyPluginOptions } from 'fastify';
import { isMimeImage } from '@/misc/is-mime-image.js';
import sharp from 'sharp';
import { correctFilename } from '@/misc/correct-filename.js';
const _filename = fileURLToPath(import.meta.url);
const _dirname = dirname(_filename);
@ -51,15 +52,6 @@ export class FileServerService {
//this.createServer = this.createServer.bind(this);
}
@bindThis
public commonReadableHandlerGenerator(reply: FastifyReply) {
return (err: Error): void => {
this.logger.error(err);
reply.code(500);
reply.header('Cache-Control', 'max-age=300');
};
}
@bindThis
public createServer(fastify: FastifyInstance, options: FastifyPluginOptions, done: (err?: Error) => void) {
fastify.addHook('onRequest', (request, reply, done) => {
@ -190,13 +182,19 @@ export class FileServerService {
}
reply.header('Content-Type', FILE_TYPE_BROWSERSAFE.includes(image.type) ? image.type : 'application/octet-stream');
reply.header('Content-Disposition',
contentDisposition(
'inline',
correctFilename(file.filename, image.ext)
)
);
return image.data;
}
if (file.fileRole !== 'original') {
const filename = rename(file.file.name, {
const filename = rename(file.filename, {
suffix: file.fileRole === 'thumbnail' ? '-thumb' : '-web',
extname: file.ext ? `.${file.ext}` : undefined,
extname: file.ext ? `.${file.ext}` : '.unknown',
}).toString();
reply.header('Content-Type', FILE_TYPE_BROWSERSAFE.includes(file.mime) ? file.mime : 'application/octet-stream');
@ -204,12 +202,10 @@ export class FileServerService {
reply.header('Content-Disposition', contentDisposition('inline', filename));
return fs.createReadStream(file.path);
} else {
const stream = fs.createReadStream(file.path);
stream.on('error', this.commonReadableHandlerGenerator(reply));
reply.header('Content-Type', FILE_TYPE_BROWSERSAFE.includes(file.file.type) ? file.file.type : 'application/octet-stream');
reply.header('Cache-Control', 'max-age=31536000, immutable');
reply.header('Content-Disposition', contentDisposition('inline', file.file.name));
return stream;
reply.header('Content-Disposition', contentDisposition('inline', file.filename));
return fs.createReadStream(file.path);
}
} catch (e) {
if ('cleanup' in file) file.cleanup();
@ -360,6 +356,12 @@ export class FileServerService {
reply.header('Content-Type', image.type);
reply.header('Cache-Control', 'max-age=31536000, immutable');
reply.header('Content-Disposition',
contentDisposition(
'inline',
correctFilename(file.filename, image.ext)
)
);
return image.data;
} catch (e) {
if ('cleanup' in file) file.cleanup();
@ -369,8 +371,8 @@ export class FileServerService {
@bindThis
private async getStreamAndTypeFromUrl(url: string): Promise<
{ state: 'remote'; fileRole?: 'thumbnail' | 'webpublic' | 'original'; file?: DriveFile; mime: string; ext: string | null; path: string; cleanup: () => void; }
| { state: 'stored_internal'; fileRole: 'thumbnail' | 'webpublic' | 'original'; file: DriveFile; mime: string; ext: string | null; path: string; }
{ state: 'remote'; fileRole?: 'thumbnail' | 'webpublic' | 'original'; file?: DriveFile; mime: string; ext: string | null; path: string; cleanup: () => void; filename: string; }
| { state: 'stored_internal'; fileRole: 'thumbnail' | 'webpublic' | 'original'; file: DriveFile; filename: string; mime: string; ext: string | null; path: string; }
| '404'
| '204'
> {
@ -386,11 +388,11 @@ export class FileServerService {
@bindThis
private async downloadAndDetectTypeFromUrl(url: string): Promise<
{ state: 'remote' ; mime: string; ext: string | null; path: string; cleanup: () => void; }
{ state: 'remote' ; mime: string; ext: string | null; path: string; cleanup: () => void; filename: string; }
> {
const [path, cleanup] = await createTemp();
try {
await this.downloadService.downloadUrl(url, path);
const { filename } = await this.downloadService.downloadUrl(url, path);
const { mime, ext } = await this.fileInfoService.detectType(path);
@ -398,6 +400,7 @@ export class FileServerService {
state: 'remote',
mime, ext,
path, cleanup,
filename,
};
} catch (e) {
cleanup();
@ -407,8 +410,8 @@ export class FileServerService {
@bindThis
private async getFileFromKey(key: string): Promise<
{ state: 'remote'; fileRole: 'thumbnail' | 'webpublic' | 'original'; file: DriveFile; url: string; mime: string; ext: string | null; path: string; cleanup: () => void; }
| { state: 'stored_internal'; fileRole: 'thumbnail' | 'webpublic' | 'original'; file: DriveFile; mime: string; ext: string | null; path: string; }
{ state: 'remote'; fileRole: 'thumbnail' | 'webpublic' | 'original'; file: DriveFile; filename: string; url: string; mime: string; ext: string | null; path: string; cleanup: () => void; }
| { state: 'stored_internal'; fileRole: 'thumbnail' | 'webpublic' | 'original'; file: DriveFile; filename: string; mime: string; ext: string | null; path: string; }
| '404'
| '204'
> {
@ -432,6 +435,7 @@ export class FileServerService {
url: file.uri,
fileRole: isThumbnail ? 'thumbnail' : isWebpublic ? 'webpublic' : 'original',
file,
filename: file.name,
};
}
@ -443,6 +447,7 @@ export class FileServerService {
state: 'stored_internal',
fileRole: isThumbnail ? 'thumbnail' : 'webpublic',
file,
filename: file.name,
mime, ext,
path,
};
@ -452,6 +457,7 @@ export class FileServerService {
state: 'stored_internal',
fileRole: 'original',
file,
filename: file.name,
mime: file.type,
ext: null,
path,

10
packages/backend/test/e2e/endpoints.ts
View File

@ -410,11 +410,19 @@ describe('Endpoints', () => {
});
test('ファイルに名前を付けられる', async () => {
const res = await uploadFile(alice, { name: 'Belmond.jpg' });
assert.strictEqual(res.status, 200);
assert.strictEqual(typeof res.body === 'object' && !Array.isArray(res.body), true);
assert.strictEqual(res.body.name, 'Belmond.jpg');
});
test('ファイルに名前を付けられるが、拡張子は正しいものになる', async () => {
const res = await uploadFile(alice, { name: 'Belmond.png' });
assert.strictEqual(res.status, 200);
assert.strictEqual(typeof res.body === 'object' && !Array.isArray(res.body), true);
assert.strictEqual(res.body.name, 'Belmond.png');
assert.strictEqual(res.body.name, 'Belmond.png.jpg');
});
test('ファイル無しで怒られる', async () => {

39
packages/backend/test/unit/misc/others.ts Normal file
View File

@ -0,0 +1,39 @@
import { describe, test, expect } from '@jest/globals';
import { contentDisposition } from '@/misc/content-disposition.js';
import { correctFilename } from '@/misc/correct-filename.js';
describe('misc:content-disposition', () => {
test('inline', () => {
expect(contentDisposition('inline', 'foo bar')).toBe('inline; filename=\"foo_bar\"; filename*=UTF-8\'\'foo%20bar');
});
test('attachment', () => {
expect(contentDisposition('attachment', 'foo bar')).toBe('attachment; filename=\"foo_bar\"; filename*=UTF-8\'\'foo%20bar');
});
test('non ascii', () => {
expect(contentDisposition('attachment', 'ファイル名')).toBe('attachment; filename=\"_____\"; filename*=UTF-8\'\'%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB%E5%90%8D');
});
});
describe('misc:correct-filename', () => {
test('simple', () => {
expect(correctFilename('filename', 'jpg')).toBe('filename.jpg');
});
test('with same ext', () => {
expect(correctFilename('filename.jpg', 'jpg')).toBe('filename.jpg');
});
test('with different ext', () => {
expect(correctFilename('filename.webp', 'jpg')).toBe('filename.webp.jpg');
});
test('non ascii with space', () => {
expect(correctFilename('ファイル 名前', 'jpg')).toBe('ファイル 名前.jpg');
});
test('jpeg', () => {
expect(correctFilename('filename.jpeg', 'jpg')).toBe('filename.jpeg');
});
test('tiff', () => {
expect(correctFilename('filename.tiff', 'tif')).toBe('filename.tiff');
});
test('null ext', () => {
expect(correctFilename('filename', null)).toBe('filename.unknown');
});
});