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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_UI_WEBUI_DEVTOOLS_DEVTOOLS_UI_DATA_SOURCE_H_
#define CHROME_BROWSER_UI_WEBUI_DEVTOOLS_DEVTOOLS_UI_DATA_SOURCE_H_
#include <list>
#include <memory>
#include "content/public/browser/url_data_source.h"
#include "services/network/public/cpp/shared_url_loader_factory.h"
#include "services/network/public/cpp/simple_url_loader.h"
#include "third_party/blink/public/public_buildflags.h"
class GURL;
namespace net {
struct NetworkTrafficAnnotationTag;
}
// An URLDataSource implementation that handles devtools://devtools/
// requests. Three types of requests could be handled based on the URL path:
// 1. /bundled/: bundled DevTools frontend is served. The path can be provided
// via --custom-devtools-frontend as file:// URL.
// 2. /remote/: remote DevTools frontend is served from App Engine.
// 3. /custom/: custom DevTools frontend is served from the server as specified
// via --custom-devtools-frontend as http:// URL.
class DevToolsDataSource : public content::URLDataSource {
public:
using GotDataCallback = content::URLDataSource::GotDataCallback;
explicit DevToolsDataSource(
scoped_refptr<network::SharedURLLoaderFactory> url_loader_factory);
DevToolsDataSource(const DevToolsDataSource&) = delete;
DevToolsDataSource& operator=(const DevToolsDataSource&) = delete;
~DevToolsDataSource() override;
// content::URLDataSource implementation.
std::string GetSource() override;
void StartDataRequest(const GURL& url,
const content::WebContents::Getter& wc_getter,
GotDataCallback callback) override;
private:
friend class DevToolsUIDataSourceTest;
struct PendingRequest;
// content::URLDataSource overrides.
std::string GetMimeType(const GURL& url) override;
bool ShouldAddContentSecurityPolicy() override;
bool ShouldDenyXFrameOptions() override;
bool ShouldServeMimeTypeAsContentTypeHeader() override;
void OnLoadComplete(std::list<PendingRequest>::iterator request_iter,
std::unique_ptr<std::string> response_body);
// Serves bundled DevTools frontend from ResourceBundle.
void StartBundledDataRequest(const std::string& path,
GotDataCallback callback);
// Serves remote DevTools frontend from hard-coded App Engine domain.
void StartRemoteDataRequest(const GURL& url, GotDataCallback callback);
// Serves remote DevTools frontend from any endpoint, passed through
// command-line flag.
void StartCustomDataRequest(const GURL& url, GotDataCallback callback);
bool MaybeHandleCustomRequest(const std::string& path,
GotDataCallback* callback);
virtual void StartNetworkRequest(
const GURL& url,
const net::NetworkTrafficAnnotationTag& traffic_annotation,
int load_flags,
GotDataCallback callback);
virtual void StartFileRequest(const std::string& path,
GotDataCallback callback);
struct PendingRequest {
PendingRequest();
PendingRequest(const PendingRequest&) = delete;
PendingRequest& operator=(const PendingRequest&) = delete;
PendingRequest(PendingRequest&& other);
PendingRequest& operator=(PendingRequest&& other) = default;
~PendingRequest();
GotDataCallback callback;
std::unique_ptr<network::SimpleURLLoader> loader;
};
scoped_refptr<network::SharedURLLoaderFactory> url_loader_factory_;
std::list<PendingRequest> pending_requests_;
};
#endif // CHROME_BROWSER_UI_WEBUI_DEVTOOLS_DEVTOOLS_UI_DATA_SOURCE_H_
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