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Remove Buffer from `getPayloadSize`

This commit is contained in:
Franck Royer 2022-05-20 10:13:13 +10:00
parent 33f52ef56d
commit bd9d592fda
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1 changed files with 12 additions and 3 deletions
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15
src/lib/waku_message/version_1.ts
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@ -118,14 +118,23 @@ function getPayloadSize(
message: Uint8Array,
sizeOfPayloadSizeField: number
): number {
const buf = Buffer.from(message);
return buf.readUIntLE(1, sizeOfPayloadSizeField);
let payloadSizeBytes = message.slice(1, 1 + sizeOfPayloadSizeField);
// int 32 == 4 bytes
if (sizeOfPayloadSizeField < 4) {
// If less than 4 bytes pad right (Little Endian).
payloadSizeBytes = concat(
[payloadSizeBytes, new Uint8Array(4 - sizeOfPayloadSizeField)],
4
);
}
const payloadSizeDataView = new DataView(payloadSizeBytes.buffer);
return payloadSizeDataView.getInt32(0, true);
}
/**
* Proceed with Asymmetric encryption of the data as per [26/WAKU-PAYLOAD](https://rfc.vac.dev/spec/26/).
* The data MUST be flags | payload-length | payload | [signature].
* The returned result can be set to `WakuMessage.payload`.
* The returned result can be set to `WakuMessage.payload`.
*
* @internal
*/