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fix(apple-sign-in): SHA256 hash nonce in request #241

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Merged
merged 1 commit into from
Feb 27, 2022
Merged

fix(apple-sign-in): SHA256 hash nonce in request #241

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13 changes: 11 additions & 2 deletions packages/apple-sign-in/index.ios.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -63,6 +63,15 @@ function randomNonce(length: number) {
return result;
}

function sha256Hash(input: string): string {
const sha256buffer = CC_SHA256(interop.handleof(NSString.stringWithString(input).UTF8String), input.length, interop.alloc(input.length));
let inputHashed = '';
for (let i = 0; i < input.length; i++) {
inputHashed += parseInt(sha256buffer[i], 10).toString(16).padStart(2, '0');
}
return inputHashed;
}

export class SignIn {
static #controller: ASAuthorizationController;
static #delegate: ASAuthorizationControllerDelegate;
Expand Down Expand Up @@ -100,10 +109,10 @@ export class SignIn {

if (options?.useNonce) {
if (options.nonce) {
request.nonce = options.nonce;
request.nonce = sha256Hash(options.nonce);
} else {
const nonce = randomNonce(32);
request.nonce = nonce;
request.nonce = sha256Hash(nonce);
(this.#delegate as any)._options.nonce = nonce;
}
}
Expand Down