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src: iterate on import attributes array correctly
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The array's length is supposed to be a multiple of two for dynamic
import callbacks.

Fixes: #50700
PR-URL: #50703
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Shelley Vohr <shelley.vohr@gmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
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targos committed Nov 23, 2023
1 parent 378ee91 commit 293f780
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Showing 3 changed files with 18 additions and 4 deletions.
12 changes: 8 additions & 4 deletions src/module_wrap.cc
Original file line number Diff line number Diff line change
Expand Up @@ -255,10 +255,14 @@ void ModuleWrap::New(const FunctionCallbackInfo<Value>& args) {
}

static Local<Object> createImportAttributesContainer(
Realm* realm, Isolate* isolate, Local<FixedArray> raw_attributes) {
Realm* realm,
Isolate* isolate,
Local<FixedArray> raw_attributes,
const int elements_per_attribute) {
CHECK_EQ(raw_attributes->Length() % elements_per_attribute, 0);
Local<Object> attributes =
Object::New(isolate, v8::Null(isolate), nullptr, nullptr, 0);
for (int i = 0; i < raw_attributes->Length(); i += 3) {
for (int i = 0; i < raw_attributes->Length(); i += elements_per_attribute) {
attributes
->Set(realm->context(),
raw_attributes->Get(realm->context(), i).As<String>(),
Expand Down Expand Up @@ -304,7 +308,7 @@ void ModuleWrap::Link(const FunctionCallbackInfo<Value>& args) {

Local<FixedArray> raw_attributes = module_request->GetImportAssertions();
Local<Object> attributes =
createImportAttributesContainer(realm, isolate, raw_attributes);
createImportAttributesContainer(realm, isolate, raw_attributes, 3);

Local<Value> argv[] = {
specifier,
Expand Down Expand Up @@ -588,7 +592,7 @@ static MaybeLocal<Promise> ImportModuleDynamically(
}

Local<Object> attributes =
createImportAttributesContainer(realm, isolate, import_attributes);
createImportAttributesContainer(realm, isolate, import_attributes, 2);

Local<Value> import_args[] = {
id,
Expand Down
5 changes: 5 additions & 0 deletions test/es-module/test-esm-import-attributes-errors.js
Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,11 @@ async function test() {
{ code: 'ERR_IMPORT_ATTRIBUTE_TYPE_INCOMPATIBLE' }
);

await rejects(
import(jsModuleDataUrl, { with: { type: 'json', other: 'unsupported' } }),
{ code: 'ERR_IMPORT_ATTRIBUTE_TYPE_INCOMPATIBLE' }
);

await rejects(
import(jsModuleDataUrl, { with: { type: 'unsupported' } }),
{ code: 'ERR_IMPORT_ATTRIBUTE_UNSUPPORTED' }
Expand Down
5 changes: 5 additions & 0 deletions test/es-module/test-esm-import-attributes-errors.mjs
Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,11 @@ await rejects(
{ code: 'ERR_IMPORT_ATTRIBUTE_TYPE_INCOMPATIBLE' }
);

await rejects(
import(jsModuleDataUrl, { with: { type: 'json', other: 'unsupported' } }),
{ code: 'ERR_IMPORT_ATTRIBUTE_TYPE_INCOMPATIBLE' }
);

await rejects(
import(import.meta.url, { with: { type: 'unsupported' } }),
{ code: 'ERR_IMPORT_ATTRIBUTE_UNSUPPORTED' }
Expand Down

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