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misskey/src/api/endpoints/drive/files/upload_from_url.ts
2017-11-14 03:47:42 +09:00

93 lines
2.2 KiB
TypeScript

/**
* Module dependencies
*/
import * as URL from 'url';
import $ from 'cafy';
import { validateFileName } from '../../../models/drive-file';
import serialize from '../../../serializers/drive-file';
import create from '../../../common/add-file-to-drive';
import * as debug from 'debug';
import * as tmp from 'tmp';
import * as fs from 'fs';
import * as request from 'request';
import * as crypto from 'crypto';
const log = debug('misskey:endpoint:upload_from_url');
/**
* Create a file from a URL
*
* @param {any} params
* @param {any} user
* @return {Promise<any>}
*/
module.exports = (params, user) => new Promise((res, rej) => {
// Get 'url' parameter
// TODO: Validate this url
const [url, urlErr] = $(params.url).string().$;
if (urlErr) return rej('invalid url param');
let name = URL.parse(url).pathname.split('/').pop();
if (!validateFileName(name)) {
name = null;
}
// Get 'folder_id' parameter
const [folderId = null, folderIdErr] = $(params.folder_id).optional.nullable.id().$;
if (folderIdErr) return rej('invalid folder_id param');
// Create temp file
new Promise((res, rej) => {
tmp.file((e, path) => {
if (e) return rej(e);
res(path);
});
})
// Download file
.then((path: string) => new Promise((res, rej) => {
const writable = fs.createWriteStream(path);
request(url)
.on('error', rej)
.on('end', () => {
writable.close();
res(path);
})
.pipe(writable)
.on('error', rej);
}))
// Calculate hash & content-type
.then((path: string) => new Promise((res, rej) => {
const readable = fs.createReadStream(path);
const hash = crypto.createHash('md5');
readable
.on('error', rej)
.on('end', () => {
hash.end();
res([path, hash.digest('hex')]);
})
.pipe(hash)
.on('error', rej);
}))
// Create file
.then((rv: string[]) => new Promise((res, rej) => {
const [path, hash] = rv;
create(user, {
stream: fs.createReadStream(path),
name,
hash
}, null, folderId)
.then(driveFile => {
res(driveFile);
// crean-up
fs.unlink(path, (e) => {
if (e) log(e.stack);
});
})
.catch(rej);
}))
// Serialize
.then(serialize)
.then(res)
.catch(rej);
});