mirror of
https://github.com/chrononeko/chronocat.git
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24 lines
712 B
TypeScript
24 lines
712 B
TypeScript
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import type { Buffer } from 'node:buffer'
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import { verify } from 'node:crypto'
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import { readFile } from 'node:fs/promises'
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import { resolve } from 'node:path'
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import { argv } from 'node:process'
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const checkScript = (key: Buffer, rawFile: Buffer) =>
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new Promise<Buffer>((res, rej) => {
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const partSig = rawFile.subarray(0, 1024)
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const partData = rawFile.subarray(1024)
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verify('sha256', partData, key, partSig, (e, r) =>
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e ? rej(e) : r ? res(partData) : rej(new Error('Check failed.')),
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)
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})
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void (async () => {
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const key = await readFile(
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resolve(__dirname, '../packages/docs/static/ti.pub'),
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)
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const rawFile = await readFile(argv[2]!)
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await checkScript(key, rawFile)
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})()
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