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LibJS: Propagate out-of-memory errors from HostImportModuleDynamically

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Timothy Flynn 2023-02-17 07:30:42 -05:00 • committed by Tim Flynn
parent f98d0acd27
commit f6503577f6
4 changed files with 12 additions and 9 deletions
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13
Userland/Libraries/LibJS/Runtime/VM.cpp
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@ -81,7 +81,7 @@ VM::VM(OwnPtr<CustomData> custom_data)
return resolve_imported_module(move(referencing_script_or_module), specifier);
};
host_import_module_dynamically = [&](ScriptOrModule, ModuleRequest const&, PromiseCapability const& promise_capability) {
host_import_module_dynamically = [&](ScriptOrModule, ModuleRequest const&, PromiseCapability const& promise_capability) -> ThrowCompletionOr<void> {
// By default, we throw on dynamic imports this is to prevent arbitrary file access by scripts.
VERIFY(current_realm());
auto& realm = *current_realm();
@ -90,7 +90,7 @@ VM::VM(OwnPtr<CustomData> custom_data)
// If you are here because you want to enable dynamic module importing make sure it won't be a security problem
// by checking the default implementation of HostImportModuleDynamically and creating your own hook or calling
// vm.enable_default_host_import_module_dynamically_hook().
promise->reject(Error::create(realm, ErrorType::DynamicImportNotAllowed.message()).release_allocated_value_but_fixme_should_propagate_errors());
promise->reject(MUST_OR_THROW_OOM(Error::create(realm, ErrorType::DynamicImportNotAllowed.message())));
promise->perform_then(
NativeFunction::create(realm, "", [](auto&) -> ThrowCompletionOr<Value> {
@ -106,6 +106,8 @@ VM::VM(OwnPtr<CustomData> custom_data)
return js_undefined();
}),
{});
return {};
};
host_finish_dynamic_import = [&](ScriptOrModule referencing_script_or_module, ModuleRequest const& specifier, PromiseCapability const& promise_capability, Promise* promise) {
@ -971,7 +973,7 @@ ThrowCompletionOr<NonnullGCPtr<Module>> VM::resolve_imported_module(ScriptOrModu
}
// 16.2.1.8 HostImportModuleDynamically ( referencingScriptOrModule, specifier, promiseCapability ), https://tc39.es/ecma262/#sec-hostimportmoduledynamically
void VM::import_module_dynamically(ScriptOrModule referencing_script_or_module, ModuleRequest module_request, PromiseCapability const& promise_capability)
ThrowCompletionOr<void> VM::import_module_dynamically(ScriptOrModule referencing_script_or_module, ModuleRequest module_request, PromiseCapability const& promise_capability)
{
auto& realm = *current_realm();
@ -1001,8 +1003,8 @@ void VM::import_module_dynamically(ScriptOrModule referencing_script_or_module,
// If there is no ScriptOrModule in any of the execution contexts
if (referencing_script_or_module.has<Empty>()) {
// Throw an error for now
promise->reject(InternalError::create(realm, String::formatted(ErrorType::ModuleNotFoundNoReferencingScript.message(), module_request.module_specifier).release_value_but_fixme_should_propagate_errors()));
return;
promise->reject(InternalError::create(realm, TRY_OR_THROW_OOM(*this, String::formatted(ErrorType::ModuleNotFoundNoReferencingScript.message(), module_request.module_specifier))));
return {};
}
}
@ -1026,6 +1028,7 @@ void VM::import_module_dynamically(ScriptOrModule referencing_script_or_module,
// It must return unused.
// Note: Just return void always since the resulting value cannot be accessed by user code.
return {};
}
// 16.2.1.9 FinishDynamicImport ( referencingScriptOrModule, specifier, promiseCapability, innerPromise ), https://tc39.es/ecma262/#sec-finishdynamicimport