142 lines
4.7 KiB
C++
142 lines
4.7 KiB
C++
/*
|
|
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 "CachedScript.h"
|
|
|
|
#include "CachedResourceClient.h"
|
|
#include "CachedResourceClientWalker.h"
|
|
#include "CachedResourceRequest.h"
|
|
#include "RuntimeApplicationChecks.h"
|
|
#include "SharedBuffer.h"
|
|
#include "TextResourceDecoder.h"
|
|
|
|
namespace WebCore {
|
|
|
|
CachedScript::CachedScript(CachedResourceRequest&& request, PAL::SessionID sessionID, const CookieJar* cookieJar)
|
|
: CachedResource(WTFMove(request), Type::Script, sessionID, cookieJar)
|
|
, m_decoder(TextResourceDecoder::create("text/javascript"_s, request.charset()))
|
|
{
|
|
}
|
|
|
|
CachedScript::~CachedScript() = default;
|
|
|
|
void CachedScript::setEncoding(const String& chs)
|
|
{
|
|
m_decoder->setEncoding(chs, TextResourceDecoder::EncodingFromHTTPHeader);
|
|
}
|
|
|
|
String CachedScript::encoding() const
|
|
{
|
|
return m_decoder->encoding().name();
|
|
}
|
|
|
|
StringView CachedScript::script()
|
|
{
|
|
if (!m_data)
|
|
return emptyString();
|
|
|
|
if (m_decodingState == NeverDecoded
|
|
&& TextEncoding(encoding()).isByteBasedEncoding()
|
|
&& m_data->size()
|
|
&& charactersAreAllASCII(m_data->data(), m_data->size())) {
|
|
|
|
m_decodingState = DataAndDecodedStringHaveSameBytes;
|
|
|
|
// If the encoded and decoded data are the same, there is no decoded data cost!
|
|
setDecodedSize(0);
|
|
m_decodedDataDeletionTimer.stop();
|
|
|
|
m_scriptHash = StringHasher::computeHashAndMaskTop8Bits(m_data->data(), m_data->size());
|
|
}
|
|
|
|
if (m_decodingState == DataAndDecodedStringHaveSameBytes)
|
|
return { m_data->data(), static_cast<unsigned>(m_data->size()) };
|
|
|
|
if (!m_script) {
|
|
m_script = m_decoder->decodeAndFlush(m_data->data(), encodedSize());
|
|
ASSERT(!m_scriptHash || m_scriptHash == m_script.impl()->hash());
|
|
if (m_decodingState == NeverDecoded)
|
|
m_scriptHash = m_script.impl()->hash();
|
|
m_decodingState = DataAndDecodedStringHaveDifferentBytes;
|
|
setDecodedSize(m_script.sizeInBytes());
|
|
}
|
|
|
|
m_decodedDataDeletionTimer.restart();
|
|
return m_script;
|
|
}
|
|
|
|
unsigned CachedScript::scriptHash()
|
|
{
|
|
if (m_decodingState == NeverDecoded)
|
|
script();
|
|
return m_scriptHash;
|
|
}
|
|
|
|
void CachedScript::finishLoading(SharedBuffer* data, const NetworkLoadMetrics& metrics)
|
|
{
|
|
m_data = data;
|
|
setEncodedSize(data ? data->size() : 0);
|
|
CachedResource::finishLoading(data, metrics);
|
|
}
|
|
|
|
void CachedScript::destroyDecodedData()
|
|
{
|
|
m_script = String();
|
|
setDecodedSize(0);
|
|
}
|
|
|
|
void CachedScript::setBodyDataFrom(const CachedResource& resource)
|
|
{
|
|
ASSERT(resource.type() == type());
|
|
auto& script = static_cast<const CachedScript&>(resource);
|
|
|
|
CachedResource::setBodyDataFrom(resource);
|
|
|
|
m_script = script.m_script;
|
|
m_scriptHash = script.m_scriptHash;
|
|
m_decodingState = script.m_decodingState;
|
|
m_decoder = script.m_decoder;
|
|
}
|
|
|
|
bool CachedScript::shouldIgnoreHTTPStatusCodeErrors() const
|
|
{
|
|
#if PLATFORM(MAC)
|
|
// This is a workaround for <rdar://problem/13916291>
|
|
// REGRESSION (r119759): Adobe Flash Player "smaller" installer relies on the incorrect firing
|
|
// of a load event and needs an app-specific hack for compatibility.
|
|
// The installer in question tries to load .js file that doesn't exist, causing the server to
|
|
// return a 404 response. Normally, this would trigger an error event to be dispatched, but the
|
|
// installer expects a load event instead so we work around it here.
|
|
if (MacApplication::isSolidStateNetworksDownloader())
|
|
return true;
|
|
#endif
|
|
|
|
return CachedResource::shouldIgnoreHTTPStatusCodeErrors();
|
|
}
|
|
|
|
} // namespace WebCore
|