Sharkey/src/services/drive/add-file.ts

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import { Buffer } from 'buffer';
import * as fs from 'fs';
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import * as mongodb from 'mongodb';
import * as crypto from 'crypto';
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import * as debug from 'debug';
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import fileType = require('file-type');
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import * as Minio from 'minio';
import * as uuid from 'uuid';
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import * as sharp from 'sharp';
import DriveFile, { IMetadata, getDriveFileBucket, IDriveFile } from '../../models/drive-file';
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import DriveFolder from '../../models/drive-folder';
import { pack } from '../../models/drive-file';
import { publishMainStream, publishDriveStream } from '../../stream';
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import { isLocalUser, IUser, IRemoteUser } from '../../models/user';
import delFile from './delete-file';
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import config from '../../config';
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import { getDriveFileThumbnailBucket } from '../../models/drive-file-thumbnail';
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import { driveStats } from '../stats';
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const log = debug('misskey:drive:add-file');
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async function save(path: string, name: string, type: string, hash: string, size: number, metadata: any): Promise<IDriveFile> {
let thumbnail: Buffer;
if (['image/jpeg', 'image/png', 'image/webp'].includes(type)) {
thumbnail = await sharp(path)
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.resize(300)
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.jpeg({
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quality: 50,
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progressive: true
})
.toBuffer();
}
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if (config.drive && config.drive.storage == 'minio') {
const minio = new Minio.Client(config.drive.config);
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const [ext] = (name.match(/\.([a-zA-Z0-9_-]+)$/) || ['']);
const key = `${config.drive.prefix}/${uuid.v4()}${ext}`;
const thumbnailKey = `${config.drive.prefix}/${uuid.v4()}.jpg`;
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const baseUrl = config.drive.baseUrl
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|| `${ config.drive.config.useSSL ? 'https' : 'http' }://${ config.drive.config.endPoint }${ config.drive.config.port ? `:${config.drive.config.port}` : '' }/${ config.drive.bucket }`;
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await minio.putObject(config.drive.bucket, key, fs.createReadStream(path), size, {
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'Content-Type': type,
'Cache-Control': 'max-age=31536000, immutable'
});
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if (thumbnail) {
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await minio.putObject(config.drive.bucket, thumbnailKey, thumbnail, size, {
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'Content-Type': 'image/jpeg',
'Cache-Control': 'max-age=31536000, immutable'
});
}
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Object.assign(metadata, {
withoutChunks: true,
storage: 'minio',
storageProps: {
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key: key,
thumbnailKey: thumbnailKey
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},
url: `${ baseUrl }/${ key }`,
thumbnailUrl: thumbnail ? `${ baseUrl }/${ thumbnailKey }` : null
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});
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const file = await DriveFile.insert({
length: size,
uploadDate: new Date(),
md5: hash,
filename: name,
metadata: metadata,
contentType: type
});
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return file;
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} else {
// Get MongoDB GridFS bucket
const bucket = await getDriveFileBucket();
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const file = await new Promise<IDriveFile>((resolve, reject) => {
const writeStream = bucket.openUploadStream(name, {
contentType: type,
metadata
});
writeStream.once('finish', resolve);
writeStream.on('error', reject);
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fs.createReadStream(path).pipe(writeStream);
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});
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if (thumbnail) {
const thumbnailBucket = await getDriveFileThumbnailBucket();
await new Promise<IDriveFile>((resolve, reject) => {
const writeStream = thumbnailBucket.openUploadStream(name, {
contentType: 'image/jpeg',
metadata: {
originalId: file._id
}
});
writeStream.once('finish', resolve);
writeStream.on('error', reject);
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writeStream.end(thumbnail);
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});
}
return file;
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}
}
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async function deleteOldFile(user: IRemoteUser) {
const oldFile = await DriveFile.findOne({
_id: {
$nin: [user.avatarId, user.bannerId]
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},
'metadata.userId': user._id
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}, {
sort: {
_id: 1
}
});
if (oldFile) {
delFile(oldFile, true);
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}
}
/**
* Add file to drive
*
* @param user User who wish to add file
* @param path File path
* @param name Name
* @param comment Comment
* @param folderId Folder ID
* @param force If set to true, forcibly upload the file even if there is a file with the same hash.
* @return Created drive file
*/
export default async function(
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user: IUser,
path: string,
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name: string = null,
comment: string = null,
folderId: mongodb.ObjectID = null,
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force: boolean = false,
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isLink: boolean = false,
url: string = null,
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uri: string = null,
sensitive: boolean = null
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): Promise<IDriveFile> {
// Calc md5 hash
const calcHash = new Promise<string>((res, rej) => {
const readable = fs.createReadStream(path);
const hash = crypto.createHash('md5');
const chunks: Buffer[] = [];
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readable
.on('error', rej)
.pipe(hash)
.on('error', rej)
.on('data', chunk => chunks.push(chunk))
.on('end', () => {
const buffer = Buffer.concat(chunks);
res(buffer.toString('hex'));
});
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});
// Detect content type
const detectMime = new Promise<[string, string]>((res, rej) => {
const readable = fs.createReadStream(path);
readable
.on('error', rej)
.once('data', (buffer: Buffer) => {
readable.destroy();
const type = fileType(buffer);
if (type) {
res([type.mime, type.ext]);
} else {
// 種類が同定できなかったら application/octet-stream にする
res(['application/octet-stream', null]);
}
})
.on('end', () => {
// maybe 0 bytes
res(['application/octet-stream', null]);
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});
});
// Get file size
const getFileSize = new Promise<number>((res, rej) => {
fs.stat(path, (err, stats) => {
if (err) return rej(err);
res(stats.size);
});
});
const [hash, [mime, ext], size] = await Promise.all([calcHash, detectMime, getFileSize]);
log(`hash: ${hash}, mime: ${mime}, ext: ${ext}, size: ${size}`);
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// detect name
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const detectedName = name || (ext ? `untitled.${ext}` : 'untitled');
if (!force) {
// Check if there is a file with the same hash
const much = await DriveFile.findOne({
md5: hash,
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'metadata.userId': user._id,
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'metadata.deletedAt': { $exists: false }
});
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if (much) {
log(`file with same hash is found: ${much._id}`);
return much;
}
}
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//#region Check drive usage
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if (!isLink) {
const usage = await DriveFile
.aggregate([{
$match: {
'metadata.userId': user._id,
'metadata.deletedAt': { $exists: false }
}
}, {
$project: {
length: true
}
}, {
$group: {
_id: null,
usage: { $sum: '$length' }
}
}])
.then((aggregates: any[]) => {
if (aggregates.length > 0) {
return aggregates[0].usage;
}
return 0;
});
log(`drive usage is ${usage}`);
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const driveCapacity = 1024 * 1024 * (isLocalUser(user) ? config.localDriveCapacityMb : config.remoteDriveCapacityMb);
// If usage limit exceeded
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if (usage + size > driveCapacity) {
if (isLocalUser(user)) {
throw 'no-free-space';
} else {
// (アバターまたはバナーを含まず)最も古いファイルを削除する
deleteOldFile(user);
}
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}
}
//#endregion
const fetchFolder = async () => {
if (!folderId) {
return null;
}
const driveFolder = await DriveFolder.findOne({
_id: folderId,
userId: user._id
});
if (driveFolder == null) throw 'folder-not-found';
return driveFolder;
};
const properties: {[key: string]: any} = {};
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let propPromises: Array<Promise<void>> = [];
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const isImage = ['image/jpeg', 'image/gif', 'image/png', 'image/webp'].includes(mime);
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if (isImage) {
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const img = sharp(path);
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// Calc width and height
const calcWh = async () => {
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log('calculate image width and height...');
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// Calculate width and height
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const meta = await img.metadata();
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log(`image width and height is calculated: ${meta.width}, ${meta.height}`);
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properties['width'] = meta.width;
properties['height'] = meta.height;
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};
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// Calc average color
const calcAvg = async () => {
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log('calculate average color...');
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try {
const info = await (img as any).stats();
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const r = Math.round(info.channels[0].mean);
const g = Math.round(info.channels[1].mean);
const b = Math.round(info.channels[2].mean);
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log(`average color is calculated: ${r}, ${g}, ${b}`);
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const value = info.isOpaque ? [r, g, b] : [r, g, b, 255];
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properties['avgColor'] = value;
} catch (e) { }
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};
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propPromises = [calcWh(), calcAvg()];
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}
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const [folder] = await Promise.all([fetchFolder(), Promise.all(propPromises)]);
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const metadata = {
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userId: user._id,
_user: {
host: user.host
},
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folderId: folder !== null ? folder._id : null,
comment: comment,
properties: properties,
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withoutChunks: isLink,
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isRemote: isLink,
isSensitive: (sensitive !== null && sensitive !== undefined)
? sensitive
: isLocalUser(user)
? user.settings.alwaysMarkNsfw
? true
: false
: false
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} as IMetadata;
if (url !== null) {
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metadata.src = url;
if (isLink) {
metadata.url = url;
}
}
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if (uri !== null) {
metadata.uri = uri;
}
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let driveFile: IDriveFile;
if (isLink) {
try {
driveFile = await DriveFile.insert({
length: 0,
uploadDate: new Date(),
md5: hash,
filename: detectedName,
metadata: metadata,
contentType: mime
});
} catch (e) {
// duplicate key error (when already registered)
if (e.code === 11000) {
log(`already registered ${metadata.uri}`);
driveFile = await DriveFile.findOne({
'metadata.uri': metadata.uri,
'metadata.userId': user._id
});
} else {
console.error(e);
throw e;
}
}
} else {
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driveFile = await (save(path, detectedName, mime, hash, size, metadata));
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}
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log(`drive file has been created ${driveFile._id}`);
pack(driveFile).then(packedFile => {
// Publish driveFileCreated event
publishMainStream(user._id, 'driveFileCreated', packedFile);
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publishDriveStream(user._id, 'file_created', packedFile);
});
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// 統計を更新
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driveStats.update(driveFile, true);
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return driveFile;
}