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ass/utils.js

31 lines
1.3 KiB

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const fs = require('fs-extra');
const Path = require('path');
const token = require('./generators/token');
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const zwsGen = require('./generators/zws');
const randomGen = require('./generators/random');
const idModes = {
zws: 'zws', // Zero-width spaces (see: https://zws.im/)
og: 'original', // Use original uploaded filename
r: 'random' // Use a randomly generated ID with a mixed-case alphanumeric character set
// todo: gfycat-style ID's (example.com/correct-horse-battery-staple)
};
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module.exports = {
log: console.log,
path: (...paths) => Path.join(__dirname, ...paths),
saveData: (data) => fs.writeJsonSync(Path.join(__dirname, 'data.json'), data, { spaces: 4 }),
verify: (req, tokens) => req.headers.authorization && tokens.includes(req.headers.authorization),
generateToken: () => token(),
generateId: (mode, lenth, originalName) =>
(mode == idModes.zws) ? zwsGen(lenth)
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: (mode == idModes.r) ? randomGen(lenth)
: originalName,
formatBytes: (bytes, decimals = 2) => {
if (bytes === 0) return '0 Bytes';
let sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
let i = Math.floor(Math.log(bytes) / Math.log(1024));
return parseFloat((bytes / Math.pow(1024, i)).toFixed(decimals < 0 ? 0 : decimals)) + ' ' + sizes[i];
}
}