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Code Issues Packages 1 Wiki Activity

fix(ext/fetch): subview Uint8Array in Req/Resp (#18890)

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Luca Casonato 2023-04-28 14:26:21 +02:00 • committed by GitHub
parent de5bd4e536
commit 84b921555f
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2 changed files with 28 additions and 30 deletions
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16
cli/tests/unit/fetch_test.ts
View file

@ -1893,3 +1893,19 @@ Deno.test(
await server;
},
);
Deno.test("Request with subarray TypedArray body", async () => {
const body = new Uint8Array([1, 2, 3, 4, 5]).subarray(1);
const req = new Request("https://example.com", { method: "POST", body });
const actual = new Uint8Array(await req.arrayBuffer());
const expected = new Uint8Array([2, 3, 4, 5]);
assertEquals(actual, expected);
});
Deno.test("Response with subarray TypedArray body", async () => {
const body = new Uint8Array([1, 2, 3, 4, 5]).subarray(1);
const req = new Response(body);
const actual = new Uint8Array(await req.arrayBuffer());
const expected = new Uint8Array([2, 3, 4, 5]);
assertEquals(actual, expected);
});

42
ext/fetch/22_body.js
View file

@ -38,7 +38,6 @@ import {
const primordials = globalThis.__bootstrap.primordials;
const {
ArrayBufferPrototype,
ArrayBufferPrototypeGetByteLength,
ArrayBufferIsView,
ArrayPrototypeMap,
DataViewPrototypeGetBuffer,
@ -394,44 +393,27 @@ function extractBody(object) {
}
} else if (ArrayBufferIsView(object)) {
const tag = TypedArrayPrototypeGetSymbolToStringTag(object);
if (tag === "Uint8Array") {
// Fast(er) path for common case of Uint8Array
const copy = TypedArrayPrototypeSlice(
object,
TypedArrayPrototypeGetByteOffset(/** @type {Uint8Array} */ (object)),
TypedArrayPrototypeGetByteLength(/** @type {Uint8Array} */ (object)),
);
source = copy;
} else if (tag !== undefined) {
if (tag !== undefined) {
// TypedArray
const copy = TypedArrayPrototypeSlice(
new Uint8Array(
if (tag !== "Uint8Array") {
// TypedArray, unless it's Uint8Array
object = new Uint8Array(
TypedArrayPrototypeGetBuffer(/** @type {Uint8Array} */ (object)),
TypedArrayPrototypeGetByteOffset(/** @type {Uint8Array} */ (object)),
TypedArrayPrototypeGetByteLength(/** @type {Uint8Array} */ (object)),
),
);
source = copy;
);
}
} else {
// DataView
const copy = TypedArrayPrototypeSlice(
new Uint8Array(
DataViewPrototypeGetBuffer(/** @type {DataView} */ (object)),
DataViewPrototypeGetByteOffset(/** @type {DataView} */ (object)),
DataViewPrototypeGetByteLength(/** @type {DataView} */ (object)),
),
object = new Uint8Array(
DataViewPrototypeGetBuffer(/** @type {DataView} */ (object)),
DataViewPrototypeGetByteOffset(/** @type {DataView} */ (object)),
DataViewPrototypeGetByteLength(/** @type {DataView} */ (object)),
);
source = copy;
}
source = TypedArrayPrototypeSlice(object);
} else if (ObjectPrototypeIsPrototypeOf(ArrayBufferPrototype, object)) {
const copy = TypedArrayPrototypeSlice(
new Uint8Array(
object,
0,
ArrayBufferPrototypeGetByteLength(object),
),
);
source = copy;
source = TypedArrayPrototypeSlice(new Uint8Array(object));
} else if (ObjectPrototypeIsPrototypeOf(FormDataPrototype, object)) {
const res = formDataToBlob(object);
stream = res.stream();