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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 COMPONENTS_WINHTTP_PROXY_CONFIGURATION_H_
#define COMPONENTS_WINHTTP_PROXY_CONFIGURATION_H_
#include <windows.h>
#include <winhttp.h>
#include "base/memory/ref_counted.h"
#include "components/winhttp/proxy_info.h"
#include "components/winhttp/scoped_winttp_proxy_info.h"
#include "third_party/abseil-cpp/absl/types/optional.h"
class GURL;
namespace winhttp {
// On Windows 8.1 and above, we can use Auto Proxy mode in WinHTTP and let
// the OS configure the proxy.
// This is represented by the AutoProxyConfiguration class.
// When a proxy related policy is set or when using Windows 8 or below,
// we'd set proxy manually using ProxyConfiguration class.
//
// Default WinHTTP proxy strategy - provide proxy server info to WinHTTP.
// Used when policy is set or on Windows 8 and below.
// This class can use either provided proxy information from the
// IE Config or a policy policy setting or query per request proxy info
// with WPAD (Web Proxy Auto Discovery).
class ProxyConfiguration : public base::RefCounted<ProxyConfiguration> {
public:
ProxyConfiguration() = default;
explicit ProxyConfiguration(const ProxyInfo& proxy_info);
ProxyConfiguration(const ProxyConfiguration&) = delete;
ProxyConfiguration& operator=(const ProxyConfiguration&) = delete;
int access_type() const;
absl::optional<ScopedWinHttpProxyInfo> GetProxyForUrl(
HINTERNET session_handle,
const GURL& url) const;
protected:
virtual ~ProxyConfiguration() = default;
private:
friend class base::RefCounted<ProxyConfiguration>;
virtual int DoGetAccessType() const;
virtual absl::optional<ScopedWinHttpProxyInfo> DoGetProxyForUrl(
HINTERNET session_handle,
const GURL& url) const;
ProxyInfo proxy_info_;
};
// Auto proxy strategy - let WinHTTP detect proxy settings.
// This is only available on Windows 8.1 and above.
class AutoProxyConfiguration final : public ProxyConfiguration {
protected:
~AutoProxyConfiguration() override = default;
private:
// Overrides for ProxyConfiguration.
int DoGetAccessType() const override;
absl::optional<ScopedWinHttpProxyInfo> DoGetProxyForUrl(
HINTERNET session_handle,
const GURL& url) const override;
};
// Sets proxy info on a request handle, if WINHTTP_PROXY_INFO is provided.
void SetProxyForRequest(
const HINTERNET request_handle,
const absl::optional<ScopedWinHttpProxyInfo>& winhttp_proxy_info);
} // namespace winhttp
#endif // COMPONENTS_WINHTTP_PROXY_CONFIGURATION_H_
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