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Specify webhook signature buffer encoding #127

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Specify webhook signature buffer encoding #127

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4 changes: 2 additions & 2 deletions packages/github/src/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -556,8 +556,8 @@ export function verifyWebhookSignature(options: {
}): boolean {
const expected = `sha256=${createHmac("sha256", options.secret).update(options.payload).digest("hex")}`;
const actual = options.signature256;
const expectedBuffer = Buffer.from(expected);
const actualBuffer = Buffer.from(actual);
const expectedBuffer = Buffer.from(expected, "utf8");
const actualBuffer = Buffer.from(actual, "utf8");
return (
expectedBuffer.length === actualBuffer.length &&
timingSafeEqual(expectedBuffer, actualBuffer)
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