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fix wrong buffer conversion for Uint8Array (#8787)

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If the BufferSource is already an Uint8Array which is a view of a subset of the underlying ArrayBuffer then accessing .buffer caused the whole backing buffer to be returned. Fix this by just returning the original Uint8Array as-is.

Co-authored-by: Justin Baur <19896123+justindbaur@users.noreply.github.com>
This commit is contained in:
Marc Bärtschi
2024-09-18 14:11:22 +02:00
committed by GitHub
parent f8fc6269f2
commit 502d8ed729
1 changed files with 4 additions and 2 deletions
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6
libs/common/src/platform/services/fido2/fido2-utils.ts
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@@ -17,8 +17,10 @@ export class Fido2Utils {
return Fido2Utils.fromB64ToArray(Fido2Utils.fromUrlB64ToB64(str)); return Fido2Utils.fromB64ToArray(Fido2Utils.fromUrlB64ToB64(str));
} }
static bufferSourceToUint8Array(bufferSource: BufferSource) { static bufferSourceToUint8Array(bufferSource: BufferSource): Uint8Array {
if (Fido2Utils.isArrayBuffer(bufferSource)) { if (bufferSource instanceof Uint8Array) {
return bufferSource;
} else if (Fido2Utils.isArrayBuffer(bufferSource)) {
return new Uint8Array(bufferSource); return new Uint8Array(bufferSource);
} else { } else {
return new Uint8Array(bufferSource.buffer); return new Uint8Array(bufferSource.buffer);