electron/atom/browser/net/resolve_proxy_helper.h

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// Copyright (c) 2018 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#ifndef ATOM_BROWSER_NET_RESOLVE_PROXY_HELPER_H_
#define ATOM_BROWSER_NET_RESOLVE_PROXY_HELPER_H_
#include <deque>
#include <string>
#include "base/memory/ref_counted.h"
#include "net/proxy_resolution/proxy_resolution_service.h"
#include "url/gurl.h"
namespace net {
class URLRequestContextGetter;
}
namespace atom {
class AtomBrowserContext;
class ResolveProxyHelper
: public base::RefCountedThreadSafe<ResolveProxyHelper> {
public:
using ResolveProxyCallback = base::Callback<void(std::string)>;
explicit ResolveProxyHelper(AtomBrowserContext* browser_context);
void ResolveProxy(const GURL& url, const ResolveProxyCallback& callback);
private:
friend class base::RefCountedThreadSafe<ResolveProxyHelper>;
// A PendingRequest is a resolve request that is in progress, or queued.
struct PendingRequest {
public:
PendingRequest(const GURL& url, const ResolveProxyCallback& callback);
PendingRequest(PendingRequest&& pending_request) noexcept;
~PendingRequest();
PendingRequest& operator=(PendingRequest&& pending_request) noexcept;
GURL url;
ResolveProxyCallback callback;
private:
DISALLOW_COPY_AND_ASSIGN(PendingRequest);
};
~ResolveProxyHelper();
// Starts the first pending request.
void StartPendingRequest();
void StartPendingRequestInIO(const GURL& url);
void OnProxyResolveComplete(int result);
void SendProxyResult(const std::string& proxy);
net::ProxyInfo proxy_info_;
std::deque<PendingRequest> pending_requests_;
scoped_refptr<net::URLRequestContextGetter> context_getter_;
scoped_refptr<base::SingleThreadTaskRunner> original_thread_;
DISALLOW_COPY_AND_ASSIGN(ResolveProxyHelper);
};
} // namespace atom
#endif // ATOM_BROWSER_NET_RESOLVE_PROXY_HELPER_H_