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/*
Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
Copyright (C) 2001 Dirk Mueller (mueller@kde.org)
Copyright (C) 2002 Waldo Bastian (bastian@kde.org)
Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
This class provides all functionality needed for loading images, style sheets and html
pages from the web. It has a memory cache for these objects.
*/
#include "config.h"
#include "core/fetch/ScriptResource.h"
#include "core/fetch/ResourceClientWalker.h"
#include "platform/MIMETypeRegistry.h"
#include "platform/SharedBuffer.h"
#include "platform/network/HTTPParsers.h"
namespace blink {
ScriptResource::ScriptResource(const ResourceRequest& resourceRequest, const String& charset)
: TextResource(resourceRequest, Script, "application/javascript", charset)
{
DEFINE_STATIC_LOCAL(const AtomicString, acceptScript, ("*/*", AtomicString::ConstructFromLiteral));
// It's javascript we want.
// But some websites think their scripts are <some wrong mimetype here>
// and refuse to serve them if we only accept application/x-javascript.
setAccept(acceptScript);
}
ScriptResource::~ScriptResource()
{
}
void ScriptResource::didAddClient(ResourceClient* client)
{
ASSERT(client->resourceClientType() == ScriptResourceClient::expectedType());
Resource::didAddClient(client);
}
void ScriptResource::appendData(const char* data, unsigned length)
{
Resource::appendData(data, length);
ResourceClientWalker<ScriptResourceClient> walker(m_clients);
while (ScriptResourceClient* client = walker.next())
client->notifyAppendData(this);
}
AtomicString ScriptResource::mimeType() const
{
return extractMIMETypeFromMediaType(m_response.httpHeaderField("Content-Type")).lower();
}
const String& ScriptResource::script()
{
ASSERT(!isPurgeable());
ASSERT(isLoaded());
if (!m_script && m_data) {
String script = decodedText();
m_data.clear();
// We lie a it here and claim that script counts as encoded data (even though it's really decoded data).
// That's because the MemoryCache thinks that it can clear out decoded data by calling destroyDecodedData(),
// but we can't destroy script in destroyDecodedData because that's our only copy of the data!
setEncodedSize(script.sizeInBytes());
m_script = AtomicString(script);
}
return m_script.string();
}
bool ScriptResource::mimeTypeAllowedByNosniff() const
{
return parseContentTypeOptionsHeader(m_response.httpHeaderField("X-Content-Type-Options")) != ContentTypeOptionsNosniff || MIMETypeRegistry::isSupportedJavaScriptMIMEType(mimeType());
}
} // namespace blink
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