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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 "chrome/browser/extensions/extension_resource_protocols.h"
#include "base/file_path.h"
#include "base/path_service.h"
#include "chrome/common/chrome_paths.h"
#include "chrome/common/extensions/extension_file_util.h"
#include "content/public/browser/browser_thread.h"
#include "net/url_request/url_request_file_job.h"
namespace {
class ExtensionResourcesJob : public net::URLRequestFileJob {
public:
ExtensionResourcesJob(net::URLRequest* request,
net::NetworkDelegate* network_delegate)
: net::URLRequestFileJob(request, network_delegate, base::FilePath()),
thread_id_(content::BrowserThread::UI) {
}
virtual void Start() OVERRIDE;
protected:
virtual ~ExtensionResourcesJob() {}
void ResolvePath();
void ResolvePathDone();
private:
content::BrowserThread::ID thread_id_;
};
void ExtensionResourcesJob::Start() {
bool result =
content::BrowserThread::GetCurrentThreadIdentifier(&thread_id_);
CHECK(result) << "Can not get thread id.";
content::BrowserThread::PostTask(
content::BrowserThread::FILE, FROM_HERE,
base::Bind(&ExtensionResourcesJob::ResolvePath, this));
}
void ExtensionResourcesJob::ResolvePath() {
base::FilePath root_path;
PathService::Get(chrome::DIR_RESOURCES_EXTENSION, &root_path);
file_path_ = extension_file_util::ExtensionResourceURLToFilePath(
request()->url(), root_path);
content::BrowserThread::PostTask(
thread_id_, FROM_HERE,
base::Bind(&ExtensionResourcesJob::ResolvePathDone, this));
}
void ExtensionResourcesJob::ResolvePathDone() {
net::URLRequestFileJob::Start();
}
class ExtensionResourceProtocolHandler
: public net::URLRequestJobFactory::ProtocolHandler {
public:
ExtensionResourceProtocolHandler() {}
virtual ~ExtensionResourceProtocolHandler() {}
virtual net::URLRequestJob* MaybeCreateJob(
net::URLRequest* request,
net::NetworkDelegate* network_delegate) const OVERRIDE;
private:
DISALLOW_COPY_AND_ASSIGN(ExtensionResourceProtocolHandler);
};
// Creates URLRequestJobs for chrome-extension-resource:// URLs.
net::URLRequestJob*
ExtensionResourceProtocolHandler::MaybeCreateJob(
net::URLRequest* request, net::NetworkDelegate* network_delegate) const {
return new ExtensionResourcesJob(request, network_delegate);
}
} // namespace
net::URLRequestJobFactory::ProtocolHandler*
CreateExtensionResourceProtocolHandler() {
return new ExtensionResourceProtocolHandler();
}
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