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90 lines
3.3 KiB
C++
90 lines
3.3 KiB
C++
// Copyright (c) 2013 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef NET_PROXY_PROXY_RESOLVER_V8_TRACING_H_
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#define NET_PROXY_PROXY_RESOLVER_V8_TRACING_H_
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#include <memory>
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#include "base/macros.h"
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#include "base/memory/ref_counted.h"
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#include "net/base/net_export.h"
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#include "net/proxy/proxy_resolver.h"
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#include "net/proxy/proxy_resolver_factory.h"
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namespace net {
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class HostResolver;
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class NetLogWithSource;
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// ProxyResolverV8Tracing is a non-blocking proxy resolver.
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class NET_EXPORT ProxyResolverV8Tracing {
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public:
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// Bindings is an interface used by ProxyResolverV8Tracing to delegate
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// per-request functionality. Each instance will be destroyed on the origin
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// thread of the ProxyResolverV8Tracing when the request completes or is
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// cancelled. All methods will be invoked from the origin thread.
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class Bindings {
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public:
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Bindings() {}
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virtual ~Bindings() {}
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// Invoked in response to an alert() call by the PAC script.
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virtual void Alert(const base::string16& message) = 0;
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// Invoked in response to an error in the PAC script.
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virtual void OnError(int line_number, const base::string16& message) = 0;
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// Returns a HostResolver to use for DNS resolution.
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virtual HostResolver* GetHostResolver() = 0;
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// Returns a NetLogWithSource to be passed to the HostResolver returned by
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// GetHostResolver().
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virtual NetLogWithSource GetNetLogWithSource() = 0;
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private:
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DISALLOW_COPY_AND_ASSIGN(Bindings);
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};
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virtual ~ProxyResolverV8Tracing() {}
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// Gets a list of proxy servers to use for |url|. This request always
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// runs asynchronously and notifies the result by running |callback|. If the
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// result code is OK then the request was successful and |results| contains
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// the proxy resolution information. Request can be cancelled by resetting
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// |*request|.
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virtual void GetProxyForURL(const GURL& url,
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ProxyInfo* results,
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const CompletionCallback& callback,
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std::unique_ptr<ProxyResolver::Request>* request,
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std::unique_ptr<Bindings> bindings) = 0;
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};
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// A factory for ProxyResolverV8Tracing instances. The default implementation,
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// returned by Create(), creates ProxyResolverV8Tracing instances that execute
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// ProxyResolverV8 on a single helper thread, and do some magic to avoid
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// blocking in DNS. For more details see the design document:
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// https://docs.google.com/a/google.com/document/d/16Ij5OcVnR3s0MH4Z5XkhI9VTPoMJdaBn9rKreAmGOdE/edit?pli=1
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class NET_EXPORT ProxyResolverV8TracingFactory {
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public:
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ProxyResolverV8TracingFactory() {}
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virtual ~ProxyResolverV8TracingFactory() = default;
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virtual void CreateProxyResolverV8Tracing(
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const scoped_refptr<ProxyResolverScriptData>& pac_script,
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std::unique_ptr<ProxyResolverV8Tracing::Bindings> bindings,
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std::unique_ptr<ProxyResolverV8Tracing>* resolver,
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const CompletionCallback& callback,
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std::unique_ptr<ProxyResolverFactory::Request>* request) = 0;
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static std::unique_ptr<ProxyResolverV8TracingFactory> Create();
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private:
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DISALLOW_COPY_AND_ASSIGN(ProxyResolverV8TracingFactory);
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};
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} // namespace net
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#endif // NET_PROXY_PROXY_RESOLVER_V8_TRACING_H_
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