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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef NET_PROXY_RESOLUTION_WIN_WINDOWS_SYSTEM_PROXY_RESOLUTION_REQUEST_H_
#define NET_PROXY_RESOLUTION_WIN_WINDOWS_SYSTEM_PROXY_RESOLUTION_REQUEST_H_
#include <memory>
#include <string>
#include "base/memory/raw_ptr.h"
#include "base/sequence_checker.h"
#include "base/time/time.h"
#include "net/base/completion_once_callback.h"
#include "net/base/net_export.h"
#include "net/log/net_log_with_source.h"
#include "net/proxy_resolution/proxy_resolution_request.h"
#include "net/proxy_resolution/win/windows_system_proxy_resolver.h"
#include "net/proxy_resolution/win/winhttp_status.h"
#include "url/gurl.h"
namespace net {
class ProxyInfo;
class ProxyList;
class WindowsSystemProxyResolutionService;
// This is the concrete implementation of ProxyResolutionRequest used by
// WindowsSystemProxyResolutionService. Manages a single asynchronous proxy
// resolution request.
class NET_EXPORT WindowsSystemProxyResolutionRequest
: public ProxyResolutionRequest {
public:
// The |windows_system_proxy_resolver| is not saved by this object. Rather, it
// is simply used to kick off proxy resolution in a utility process from
// within the constructor. The |windows_system_proxy_resolver| is not needed
// after construction. Every other parameter is saved by this object. Details
// for each one of these saved parameters can be found below.
WindowsSystemProxyResolutionRequest(
WindowsSystemProxyResolutionService* service,
const GURL& url,
const std::string& method,
ProxyInfo* results,
const CompletionOnceCallback user_callback,
const NetLogWithSource& net_log,
WindowsSystemProxyResolver* windows_system_proxy_resolver);
WindowsSystemProxyResolutionRequest(
const WindowsSystemProxyResolutionRequest&) = delete;
WindowsSystemProxyResolutionRequest& operator=(
const WindowsSystemProxyResolutionRequest&) = delete;
~WindowsSystemProxyResolutionRequest() override;
// ProxyResolutionRequest
LoadState GetLoadState() const override;
// Callback for when the cross-process proxy resolution has completed. The
// |proxy_list| is the list of proxies returned by WinHttp translated into
// Chromium-friendly terms. The |winhttp_status| describes the status of the
// proxy resolution request. If WinHttp fails for some reason, |windows_error|
// contains the specific error returned by WinHttp.
virtual void ProxyResolutionComplete(const ProxyList& proxy_list,
WinHttpStatus winhttp_status,
int windows_error);
WindowsSystemProxyResolver::Request* GetProxyResolutionRequestForTesting();
void ResetProxyResolutionRequestForTesting();
private:
// Cancels the callback from the resolver for a previously started proxy
// resolution.
void CancelResolveRequest();
// Returns true if the request has been completed.
bool was_completed() const { return user_callback_.is_null(); }
// Note that Request holds a bare pointer to the
// WindowsSystemProxyResolutionService. Outstanding requests are cancelled
// during ~WindowsSystemProxyResolutionService, so this is guaranteed to be
// valid throughout the lifetime of this object.
raw_ptr<WindowsSystemProxyResolutionService> service_;
CompletionOnceCallback user_callback_;
raw_ptr<ProxyInfo> results_;
const GURL url_;
const std::string method_;
NetLogWithSource net_log_;
// Time when the request was created. Stored here rather than in |results_|
// because the time in |results_| will be cleared.
base::TimeTicks creation_time_;
// Manages the cross-process proxy resolution. Deleting this will cancel a
// pending proxy resolution. After a callback has been received via
// ProxyResolutionComplete(), this object will no longer do anything.
std::unique_ptr<WindowsSystemProxyResolver::Request>
proxy_resolution_request_;
SEQUENCE_CHECKER(sequence_checker_);
};
} // namespace net
#endif // NET_PROXY_RESOLUTION_WIN_WINDOWS_SYSTEM_PROXY_RESOLUTION_REQUEST_H_
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