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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "modules/push_messaging/PushMessageData.h"
#include "bindings/core/v8/ExceptionState.h"
#include "bindings/core/v8/ScriptState.h"
#include "bindings/core/v8/V8Binding.h"
#include "bindings/modules/v8/ArrayBufferOrArrayBufferViewOrUSVString.h"
#include "core/dom/DOMArrayBuffer.h"
#include "core/fileapi/Blob.h"
#include "platform/blob/BlobData.h"
#include "wtf/Assertions.h"
#include "wtf/text/TextEncoding.h"
#include <memory>
#include <v8.h>
namespace blink {
PushMessageData* PushMessageData::create(const String& messageString) {
// The standard supports both an empty but valid message and a null message.
// In case the message is explicitly null, return a null pointer which will
// be set in the PushEvent.
if (messageString.isNull())
return nullptr;
return PushMessageData::create(
ArrayBufferOrArrayBufferViewOrUSVString::fromUSVString(messageString));
}
PushMessageData* PushMessageData::create(
const ArrayBufferOrArrayBufferViewOrUSVString& messageData) {
if (messageData.isArrayBuffer() || messageData.isArrayBufferView()) {
DOMArrayBuffer* buffer = messageData.isArrayBufferView()
? messageData.getAsArrayBufferView()->buffer()
: messageData.getAsArrayBuffer();
return new PushMessageData(static_cast<const char*>(buffer->data()),
buffer->byteLength());
}
if (messageData.isUSVString()) {
CString encodedString = UTF8Encoding().encode(messageData.getAsUSVString(),
WTF::EntitiesForUnencodables);
return new PushMessageData(encodedString.data(), encodedString.length());
}
DCHECK(messageData.isNull());
return nullptr;
}
PushMessageData::PushMessageData(const char* data, unsigned bytesSize) {
m_data.append(data, bytesSize);
}
PushMessageData::~PushMessageData() {}
DOMArrayBuffer* PushMessageData::arrayBuffer() const {
return DOMArrayBuffer::create(m_data.data(), m_data.size());
}
Blob* PushMessageData::blob() const {
std::unique_ptr<BlobData> blobData = BlobData::create();
blobData->appendBytes(m_data.data(), m_data.size());
// Note that the content type of the Blob object is deliberately not being
// provided, following the specification.
const long long byteLength = blobData->length();
return Blob::create(BlobDataHandle::create(std::move(blobData), byteLength));
}
ScriptValue PushMessageData::json(ScriptState* scriptState,
ExceptionState& exceptionState) const {
ScriptState::Scope scope(scriptState);
v8::Local<v8::Value> parsed =
fromJSONString(scriptState->isolate(), text(), exceptionState);
if (exceptionState.hadException())
return ScriptValue();
return ScriptValue(scriptState, parsed);
}
String PushMessageData::text() const {
return UTF8Encoding().decode(m_data.data(), m_data.size());
}
DEFINE_TRACE(PushMessageData) {}
} // namespace blink
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