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Handle the case when nonce is a base64 string for signMessage #194

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merged 1 commit into from
Feb 3, 2024
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Handle the case when nonce is a base64 string for signMessage #194

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12 changes: 10 additions & 2 deletions packages/frontend/src/utils/signMessage.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,14 @@ const schema = {
},
};

export const validateNonce = (nonce?: string) => nonce && nonce.length === 32;
const isBase64 = (value: string) => /^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})$/.test(value);

export const validateNonce = (nonce?: string) => {
if (nonce && isBase64(nonce)) {
return Buffer.from(nonce, 'base64').length === 32;
}
return nonce && nonce.length === 32;
};

export const serialize = (value) => borsh.serialize(schema, value);
export const deserialize = (value) => borsh.deserialize(schema, value);
Expand All @@ -24,10 +31,11 @@ export const messageToSign = (data: {
recipient: string;
callbackUrl?: string;
}) => {
const nonce = isBase64(data.nonce) ? Buffer.from(data.nonce, 'base64') : Buffer.from(data.nonce);
const payload = {
tag: 2147484061,
...data,
nonce: Buffer.from(data.nonce),
nonce,
};

return serialize(payload);
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