80 lines
2.4 KiB
C++
80 lines
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/glean/bindings/Object.h"
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#include "Common.h"
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#include "mozilla/dom/GleanMetricsBinding.h"
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#include "mozilla/dom/ToJSValue.h"
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#include "mozilla/Logging.h"
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#include "jsapi.h"
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#include "js/JSON.h"
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#include "nsContentUtils.h"
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using namespace mozilla::dom;
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namespace mozilla::glean {
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/* virtual */
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JSObject* GleanObject::WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return dom::GleanObject_Binding::Wrap(aCx, this, aGivenProto);
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}
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void GleanObject::Set(JSContext* aCx, JS::Handle<JSObject*> aObj) {
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// We take in an `object`. Cannot be `null`!
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// But at this point the type system doesn't know that.
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JS::Rooted<JS::Value> value(aCx);
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value.setObjectOrNull(aObj);
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nsAutoString serializedValue;
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bool res = nsContentUtils::StringifyJSON(aCx, value, serializedValue,
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UndefinedIsNullStringLiteral);
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if (!res) {
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// JS_Stringify throws an exception, e.g. on cyclic objects.
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// We don't want this rethrown.
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JS_ClearPendingException(aCx);
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LogToBrowserConsole(nsIScriptError::warningFlag,
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u"passed in object cannot be serialized"_ns);
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return;
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}
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NS_ConvertUTF16toUTF8 payload(serializedValue);
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mObject.SetStr(payload);
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}
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void GleanObject::TestGetValue(JSContext* aCx, const nsACString& aPingName,
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JS::MutableHandle<JSObject*> aResult,
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ErrorResult& aRv) {
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aResult.set(nullptr);
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auto result = mObject.TestGetValue(aPingName);
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if (result.isErr()) {
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aRv.ThrowDataError(result.unwrapErr());
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return;
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}
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auto optresult = result.unwrap();
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if (optresult.isNothing()) {
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return;
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}
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const NS_ConvertUTF8toUTF16 str(optresult.ref());
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JS::Rooted<JS::Value> json(aCx);
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bool res = JS_ParseJSON(aCx, str.get(), str.Length(), &json);
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if (!res) {
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aRv.ThrowDataError("couldn't parse stored object");
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return;
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}
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if (!json.isObject()) {
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aRv.ThrowDataError("stored data does not represent a valid object");
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return;
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}
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aResult.set(&json.toObject());
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}
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} // namespace mozilla::glean
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