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37 lines
No EOL
862 B
TypeScript
37 lines
No EOL
862 B
TypeScript
// from https://github.com/advaith1/activities/blob/main/src/verify.ts
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'use strict';
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function hex2bin(hex: string) {
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const buf = new Uint8Array(Math.ceil(hex.length / 2));
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for (let i = 0; i < buf.length; i++) {
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buf[i] = parseInt(hex.substr(i * 2, 2), 16);
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}
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return buf;
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}
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const PUBLIC_KEY = crypto.subtle.importKey(
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'raw',
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hex2bin(CLIENT_PUBLIC_KEY || ''),
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{
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name: 'NODE-ED25519',
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namedCurve: 'NODE-ED25519',
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},
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true,
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['verify'],
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);
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const encoder = new TextEncoder();
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export async function verify(request: Request) {
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const signature = hex2bin(request.headers.get('X-Signature-Ed25519') || '');
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const timestamp = request.headers.get('X-Signature-Timestamp');
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const unknown = await request.clone().text();
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return await crypto.subtle.verify(
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'NODE-ED25519',
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await PUBLIC_KEY,
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signature,
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encoder.encode(timestamp + unknown),
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);
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} |