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// Copyright (c) 2012 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 "content/browser/resource_context_impl.h"
#include "base/logging.h"
#include "content/browser/fileapi/chrome_blob_storage_context.h"
#include "content/browser/host_zoom_map_impl.h"
#include "content/browser/loader/resource_dispatcher_host_impl.h"
#include "content/browser/loader/resource_request_info_impl.h"
#include "content/browser/streams/stream_context.h"
#include "content/browser/webui/url_data_manager_backend.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/browser_thread.h"
#include "net/base/keygen_handler.h"
#include "net/ssl/client_cert_store.h"
using base::UserDataAdapter;
namespace content {
namespace {
// Key names on ResourceContext.
const char kBlobStorageContextKeyName[] = "content_blob_storage_context";
const char kHostZoomMapKeyName[] = "content_host_zoom_map";
const char kStreamContextKeyName[] = "content_stream_context";
const char kURLDataManagerBackendKeyName[] = "url_data_manager_backend";
class NonOwningZoomData : public base::SupportsUserData::Data {
public:
explicit NonOwningZoomData(HostZoomMap* hzm) : host_zoom_map_(hzm) {}
HostZoomMap* host_zoom_map() { return host_zoom_map_; }
private:
HostZoomMap* host_zoom_map_;
};
// Used by the default implementation of GetMediaDeviceIDSalt, below.
std::string ReturnEmptySalt() {
return std::string();
}
} // namespace
ResourceContext::ResourceContext() {
if (ResourceDispatcherHostImpl::Get())
ResourceDispatcherHostImpl::Get()->AddResourceContext(this);
}
ResourceContext::~ResourceContext() {
ResourceDispatcherHostImpl* rdhi = ResourceDispatcherHostImpl::Get();
if (rdhi) {
rdhi->CancelRequestsForContext(this);
rdhi->RemoveResourceContext(this);
}
// In some tests this object is destructed on UI thread.
DetachUserDataThread();
}
ResourceContext::SaltCallback ResourceContext::GetMediaDeviceIDSalt() {
return base::Bind(&ReturnEmptySalt);
}
scoped_ptr<net::ClientCertStore> ResourceContext::CreateClientCertStore() {
return scoped_ptr<net::ClientCertStore>();
}
void ResourceContext::CreateKeygenHandler(
uint32 key_size_in_bits,
const std::string& challenge_string,
const GURL& url,
const base::Callback<void(scoped_ptr<net::KeygenHandler>)>& callback) {
callback.Run(make_scoped_ptr(
new net::KeygenHandler(key_size_in_bits, challenge_string, url)));
}
ChromeBlobStorageContext* GetChromeBlobStorageContextForResourceContext(
ResourceContext* resource_context) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
return UserDataAdapter<ChromeBlobStorageContext>::Get(
resource_context, kBlobStorageContextKeyName);
}
StreamContext* GetStreamContextForResourceContext(
ResourceContext* resource_context) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
return UserDataAdapter<StreamContext>::Get(
resource_context, kStreamContextKeyName);
}
HostZoomMap* GetHostZoomMapForResourceContext(ResourceContext* context) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
NonOwningZoomData* result = static_cast<NonOwningZoomData*>(
context->GetUserData(kHostZoomMapKeyName));
if (!result)
return NULL;
return result->host_zoom_map();
}
URLDataManagerBackend* GetURLDataManagerForResourceContext(
ResourceContext* context) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
if (!context->GetUserData(kURLDataManagerBackendKeyName)) {
context->SetUserData(kURLDataManagerBackendKeyName,
new URLDataManagerBackend());
}
return static_cast<URLDataManagerBackend*>(
context->GetUserData(kURLDataManagerBackendKeyName));
}
void InitializeResourceContext(BrowserContext* browser_context) {
ResourceContext* resource_context = browser_context->GetResourceContext();
DCHECK(!resource_context->GetUserData(kHostZoomMapKeyName));
resource_context->SetUserData(
kBlobStorageContextKeyName,
new UserDataAdapter<ChromeBlobStorageContext>(
ChromeBlobStorageContext::GetFor(browser_context)));
resource_context->SetUserData(
kStreamContextKeyName,
new UserDataAdapter<StreamContext>(
StreamContext::GetFor(browser_context)));
// This object is owned by the BrowserContext and not ResourceContext, so
// store a non-owning pointer here.
resource_context->SetUserData(
kHostZoomMapKeyName,
new NonOwningZoomData(
HostZoomMap::GetDefaultForBrowserContext(browser_context)));
resource_context->DetachUserDataThread();
}
} // namespace content
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