51 lines
1.1 KiB
JavaScript
51 lines
1.1 KiB
JavaScript
const fs = require('fs');
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const path = require('path');
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const promisify = require('util').promisify;
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const mkdirp = require('mkdirp');
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const stat = promisify(fs.stat);
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class FSStorage {
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constructor(config, log) {
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this.log = log;
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this.dir = config.file_dir;
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mkdirp.sync(this.dir);
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}
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async length(id) {
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const result = await stat(path.join(this.dir, id));
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return result.size;
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}
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getStream(id) {
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return fs.createReadStream(path.join(this.dir, id));
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}
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set(id, file) {
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return new Promise((resolve, reject) => {
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const filepath = path.join(this.dir, id);
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const fstream = fs.createWriteStream(filepath);
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file.pipe(fstream);
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file.on('limit', () => {
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file.unpipe(fstream);
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fstream.destroy(new Error('limit'));
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});
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fstream.on('error', err => {
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fs.unlinkSync(filepath);
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reject(err);
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});
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fstream.on('finish', resolve);
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});
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}
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del(id) {
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return Promise.resolve(fs.unlinkSync(path.join(this.dir, id)));
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}
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ping() {
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return Promise.resolve();
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}
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}
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module.exports = FSStorage;
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