PassRefPtr<SharedBuffer> InspectorResourceAgent::resourceData(Frame* frame, const KURL& url, String* textEncodingName)
{
FrameLoader* frameLoader = frame->loader();
DocumentLoader* loader = frameLoader->documentLoader();
if (equalIgnoringFragmentIdentifier(url, loader->url())) {
*textEncodingName = frame->document()->inputEncoding();
return frameLoader->documentLoader()->mainResourceData();
}
CachedResource* cachedResource = InspectorResourceAgent::cachedResource(frame, url);
if (!cachedResource)
return 0;
if (cachedResource->isPurgeable()) {
// If the resource is purgeable then make it unpurgeable to get
// get its data. This might fail, in which case we return an
// empty String.
// FIXME: should we do something else in the case of a purged
// resource that informs the user why there is no data in the
// inspector?
if (!cachedResource->makePurgeable(false))
return 0;
}
*textEncodingName = cachedResource->encoding();
return cachedResource->data();
}
PassRefPtr<SharedBuffer> InspectorResource::resourceData(String* textEncodingName) const
{
if (m_requestURL == m_loader->requestURL()) {
*textEncodingName = m_frame->document()->inputEncoding();
return m_loader->mainResourceData();
}
CachedResource* cachedResource = this->cachedResource();
if (!cachedResource)
return 0;
if (cachedResource->isPurgeable()) {
// If the resource is purgeable then make it unpurgeable to get
// get its data. This might fail, in which case we return an
// empty String.
// FIXME: should we do something else in the case of a purged
// resource that informs the user why there is no data in the
// inspector?
if (!cachedResource->makePurgeable(false))
return 0;
}
*textEncodingName = cachedResource->encoding();
return cachedResource->data();
}
PassRefPtr<ArchiveResource> DocumentLoader::subresource(const KURL& url) const
{
if (!isCommitted())
return 0;
CachedResource* resource = m_frame->document()->docLoader()->cachedResource(url);
if (!resource || !resource->isLoaded())
return archiveResourceForURL(url);
// FIXME: This has the side effect of making the resource non-purgeable.
// It would be better if it didn't have this permanent effect.
if (!resource->makePurgeable(false))
return 0;
RefPtr<SharedBuffer> data = resource->data();
if (!data)
return 0;
return ArchiveResource::create(data.release(), url, resource->response());
}
String InspectorResource::sourceString() const
{
if (!m_xmlHttpResponseText.isNull())
return String(m_xmlHttpResponseText);
RefPtr<SharedBuffer> buffer;
String textEncodingName;
if (m_requestURL == m_loader->requestURL()) {
buffer = m_loader->mainResourceData();
textEncodingName = m_frame->document()->inputEncoding();
} else {
CachedResource* cachedResource = m_frame->document()->docLoader()->cachedResource(requestURL());
if (!cachedResource)
return String();
if (cachedResource->isPurgeable()) {
// If the resource is purgeable then make it unpurgeable to get
// get its data. This might fail, in which case we return an
// empty String.
// FIXME: should we do something else in the case of a purged
// resource that informs the user why there is no data in the
// inspector?
if (!cachedResource->makePurgeable(false))
return String();
}
buffer = cachedResource->data();
textEncodingName = cachedResource->encoding();
}
if (!buffer)
return String();
TextEncoding encoding(textEncodingName);
if (!encoding.isValid())
encoding = WindowsLatin1Encoding();
return encoding.decode(buffer->data(), buffer->size());
}
CachedResource* MemoryCache::resourceForRequest(const ResourceRequest& request)
{
ASSERT(WTF::isMainThread());
KURL url = removeFragmentIdentifierIfNeeded(request.url());
#if ENABLE(CACHE_PARTITIONING)
CachedResourceItem* item = m_resources.get(url);
CachedResource* resource = 0;
if (item)
resource = item->get(request.cachePartition());
#else
CachedResource* resource = m_resources.get(url);
#endif
bool wasPurgeable = MemoryCache::shouldMakeResourcePurgeableOnEviction() && resource && resource->isPurgeable();
if (resource && !resource->makePurgeable(false)) {
ASSERT(!resource->hasClients());
evict(resource);
return 0;
}
// Add the size back since we had subtracted it when we marked the memory as purgeable.
if (wasPurgeable)
adjustSize(resource->hasClients(), resource->size());
return resource;
}
