add-file-to-drive - Promise百烈拳とメモリ削減
This commit is contained in:
otofune
@@ -9,28 +9,34 @@ import DriveFolder from '../models/drive-folder';
|
||||
import serialize from '../serializers/drive-file';
|
||||
import event from '../event';
|
||||
import config from '../../conf';
|
||||
import { Duplex } from 'stream';
|
||||
import { Buffer } from 'buffer';
|
||||
import * as fs from 'fs';
|
||||
import * as tmp from 'tmp';
|
||||
import * as stream from 'stream';
|
||||
|
||||
const log = debug('misskey:register-drive-file');
|
||||
|
||||
const addToGridFS = (name, binary, type, metadata): Promise<any> => new Promise(async (resolve, reject) => {
|
||||
const dataStream = new Duplex();
|
||||
dataStream.push(binary);
|
||||
dataStream.push(null);
|
||||
const tmpFile = (): Promise<string> => new Promise((resolve, reject) => {
|
||||
tmp.file((e, path) => {
|
||||
if (e) return reject(e)
|
||||
resolve(path)
|
||||
})
|
||||
})
|
||||
|
||||
const bucket = await getGridFSBucket();
|
||||
const writeStream = bucket.openUploadStream(name, { contentType: type, metadata });
|
||||
writeStream.once('finish', (doc) => { resolve(doc); });
|
||||
writeStream.on('error', reject);
|
||||
dataStream.pipe(writeStream);
|
||||
});
|
||||
const addToGridFS = (name: string, readable: stream.Readable, type: string, metadata: any): Promise<any> =>
|
||||
getGridFSBucket()
|
||||
.then(bucket => new Promise((resolve, reject) => {
|
||||
const writeStream = bucket.openUploadStream(name, { contentType: type, metadata });
|
||||
writeStream.once('finish', (doc) => { resolve(doc); });
|
||||
writeStream.on('error', reject);
|
||||
readable.pipe(writeStream);
|
||||
}))
|
||||
|
||||
/**
|
||||
* Add file to drive
|
||||
*
|
||||
* @param user User who wish to add file
|
||||
* @param fileName File name
|
||||
* @param data Contents
|
||||
* @param file File path, binary, or readableStream
|
||||
* @param comment Comment
|
||||
* @param type File type
|
||||
* @param folderId Folder ID
|
||||
@@ -39,139 +45,201 @@ const addToGridFS = (name, binary, type, metadata): Promise<any> => new Promise(
|
||||
*/
|
||||
export default (
|
||||
user: any,
|
||||
data: Buffer,
|
||||
file: string | Buffer | stream.Readable,
|
||||
name: string = null,
|
||||
comment: string = null,
|
||||
folderId: mongodb.ObjectID = null,
|
||||
force: boolean = false
|
||||
) => new Promise<any>(async (resolve, reject) => {
|
||||
) => new Promise<any>((resolve, reject) => {
|
||||
log(`registering ${name} (user: ${user.username})`);
|
||||
|
||||
// File size
|
||||
const size = data.byteLength;
|
||||
|
||||
log(`size is ${size}`);
|
||||
|
||||
// File type
|
||||
let mime = 'application/octet-stream';
|
||||
const type = fileType(data);
|
||||
if (type !== null) {
|
||||
mime = type.mime;
|
||||
|
||||
if (name === null) {
|
||||
name = `untitled.${type.ext}`;
|
||||
// Get file path
|
||||
new Promise((res: (v: string) => void, rej) => {
|
||||
if (typeof file === 'string') {
|
||||
res(file)
|
||||
return
|
||||
}
|
||||
} else {
|
||||
if (name === null) {
|
||||
name = 'untitled';
|
||||
if (file instanceof Buffer) {
|
||||
tmpFile()
|
||||
.then(path => {
|
||||
fs.writeFile(path, file, (err) => {
|
||||
if (err) rej(err)
|
||||
res(path)
|
||||
})
|
||||
})
|
||||
.catch(rej)
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
log(`type is ${mime}`);
|
||||
|
||||
// Generate hash
|
||||
const hash = crypto
|
||||
.createHash('md5')
|
||||
.update(data)
|
||||
.digest('hex') as string;
|
||||
|
||||
log(`hash is ${hash}`);
|
||||
|
||||
if (!force) {
|
||||
// Check if there is a file with the same hash
|
||||
const much = await DriveFile.findOne({
|
||||
md5: hash,
|
||||
'metadata.user_id': user._id
|
||||
});
|
||||
|
||||
if (much !== null) {
|
||||
log('file with same hash is found');
|
||||
return resolve(much);
|
||||
} else {
|
||||
log('file with same hash is not found');
|
||||
if (typeof file === 'object' && typeof file.read === 'function') {
|
||||
tmpFile()
|
||||
.then(path => {
|
||||
const readable: stream.Readable = file
|
||||
const writable = fs.createWriteStream(path)
|
||||
readable
|
||||
.on('error', rej)
|
||||
.on('end', () => {
|
||||
res(path)
|
||||
})
|
||||
.pipe(writable)
|
||||
.on('error', rej)
|
||||
})
|
||||
.catch(rej)
|
||||
}
|
||||
}
|
||||
rej(new Error('un-compatible file.'))
|
||||
})
|
||||
// Calculate hash, get content type and get file size
|
||||
.then(path => Promise.all([
|
||||
path,
|
||||
// hash
|
||||
((): Promise<string> => new Promise((res, rej) => {
|
||||
const readable = fs.createReadStream(path)
|
||||
const hash = crypto.createHash('md5')
|
||||
readable
|
||||
.on('error', rej)
|
||||
.on('end', () => {
|
||||
res(hash.digest('hex'))
|
||||
})
|
||||
.pipe(hash)
|
||||
.on('error', rej)
|
||||
}))(),
|
||||
// mime
|
||||
((): Promise<[string, string | null]> => new Promise((res, rej) => {
|
||||
const readable = fs.createReadStream(path)
|
||||
readable
|
||||
.on('error', rej)
|
||||
.once('data', (buffer: Buffer) => {
|
||||
readable.destroy()
|
||||
const type = fileType(buffer)
|
||||
if (!type) {
|
||||
return res(['application/octet-stream', null])
|
||||
}
|
||||
return res([type.mime, type.ext])
|
||||
})
|
||||
}))(),
|
||||
// size
|
||||
((): Promise<number> => new Promise((res, rej) => {
|
||||
fs.stat(path, (err, stats) => {
|
||||
if (err) return rej(err)
|
||||
res(stats.size)
|
||||
})
|
||||
}))()
|
||||
]))
|
||||
.then(async ([path, hash, [mime, ext], size]) => {
|
||||
log(`hash: ${hash}, mime: ${mime}, ext: ${ext}, size: ${size}`)
|
||||
|
||||
// Calculate drive usage
|
||||
const usage = ((await DriveFile
|
||||
.aggregate([
|
||||
{ $match: { 'metadata.user_id': user._id } },
|
||||
{ $project: {
|
||||
length: true
|
||||
}},
|
||||
{ $group: {
|
||||
_id: null,
|
||||
usage: { $sum: '$length' }
|
||||
}}
|
||||
]))[0] || {
|
||||
usage: 0
|
||||
}).usage;
|
||||
// detect name
|
||||
const detectedName: string = name || (ext ? `untitled.${ext}` : 'untitled');
|
||||
|
||||
log(`drive usage is ${usage}`);
|
||||
if (!force) {
|
||||
// Check if there is a file with the same hash
|
||||
const much = await DriveFile.findOne({
|
||||
md5: hash,
|
||||
'metadata.user_id': user._id
|
||||
});
|
||||
|
||||
// If usage limit exceeded
|
||||
if (usage + size > user.drive_capacity) {
|
||||
return reject('no-free-space');
|
||||
}
|
||||
|
||||
// If the folder is specified
|
||||
let folder: any = null;
|
||||
if (folderId !== null) {
|
||||
folder = await DriveFolder
|
||||
.findOne({
|
||||
_id: folderId,
|
||||
user_id: user._id
|
||||
});
|
||||
|
||||
if (folder === null) {
|
||||
return reject('folder-not-found');
|
||||
}
|
||||
}
|
||||
|
||||
let properties: any = null;
|
||||
|
||||
// If the file is an image
|
||||
if (/^image\/.*$/.test(mime)) {
|
||||
// Calculate width and height to save in property
|
||||
const g = gm(data, name);
|
||||
const size = await prominence(g).size();
|
||||
properties = {
|
||||
width: size.width,
|
||||
height: size.height
|
||||
};
|
||||
|
||||
log('image width and height is calculated');
|
||||
}
|
||||
|
||||
// Create DriveFile document
|
||||
const file = await addToGridFS(name, data, mime, {
|
||||
user_id: user._id,
|
||||
folder_id: folder !== null ? folder._id : null,
|
||||
comment: comment,
|
||||
properties: properties
|
||||
});
|
||||
|
||||
log(`drive file has been created ${file._id}`);
|
||||
|
||||
resolve(file);
|
||||
|
||||
// Serialize
|
||||
const fileObj = await serialize(file);
|
||||
|
||||
// Publish drive_file_created event
|
||||
event(user._id, 'drive_file_created', fileObj);
|
||||
|
||||
// Register to search database
|
||||
if (config.elasticsearch.enable) {
|
||||
const es = require('../../db/elasticsearch');
|
||||
es.index({
|
||||
index: 'misskey',
|
||||
type: 'drive_file',
|
||||
id: file._id.toString(),
|
||||
body: {
|
||||
name: file.name,
|
||||
user_id: user._id.toString()
|
||||
if (much !== null) {
|
||||
log('file with same hash is found');
|
||||
return resolve(much);
|
||||
} else {
|
||||
log('file with same hash is not found');
|
||||
}
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
const [properties, folder] = await Promise.all([
|
||||
// properties
|
||||
(async () => {
|
||||
if (!/^image\/.*$/.test(mime)) {
|
||||
return null
|
||||
}
|
||||
// If the file is an image, calculate width and height to save in property
|
||||
const g = gm(data, name);
|
||||
const size = await prominence(g).size();
|
||||
const properties = {
|
||||
width: size.width,
|
||||
height: size.height
|
||||
};
|
||||
log('image width and height is calculated');
|
||||
return properties
|
||||
})(),
|
||||
// folder
|
||||
(async () => {
|
||||
if (!folderId) {
|
||||
return null
|
||||
}
|
||||
const driveFolder = await DriveFolder.findOne({
|
||||
_id: folderId,
|
||||
user_id: user._id
|
||||
})
|
||||
if (!driveFolder) {
|
||||
throw 'folder-not-found'
|
||||
}
|
||||
return driveFolder
|
||||
})(),
|
||||
// usage checker
|
||||
(async () => {
|
||||
// Calculate drive usage
|
||||
const usage = await DriveFile
|
||||
.aggregate([
|
||||
{ $match: { 'metadata.user_id': user._id } },
|
||||
{
|
||||
$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}`);
|
||||
|
||||
// If usage limit exceeded
|
||||
if (usage + size > user.drive_capacity) {
|
||||
throw 'no-free-space';
|
||||
}
|
||||
})()
|
||||
])
|
||||
|
||||
const readable = fs.createReadStream(path)
|
||||
|
||||
return addToGridFS(name, readable, mime, {
|
||||
user_id: user._id,
|
||||
folder_id: folder !== null ? folder._id : null,
|
||||
comment: comment,
|
||||
properties: properties
|
||||
})
|
||||
})
|
||||
.then(file => {
|
||||
log(`drive file has been created ${file._id}`);
|
||||
resolve(file)
|
||||
return serialize(file)
|
||||
})
|
||||
.then(serializedFile => {
|
||||
// Publish drive_file_created event
|
||||
event(user._id, 'drive_file_created', fileObj);
|
||||
|
||||
// Register to search database
|
||||
if (config.elasticsearch.enable) {
|
||||
const es = require('../../db/elasticsearch');
|
||||
es.index({
|
||||
index: 'misskey',
|
||||
type: 'drive_file',
|
||||
id: file._id.toString(),
|
||||
body: {
|
||||
name: file.name,
|
||||
user_id: user._id.toString()
|
||||
}
|
||||
});
|
||||
}
|
||||
})
|
||||
.catch(reject)
|
||||
});
|
||||
|
||||
Reference in New Issue
Block a user