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87 lines
2.5 KiB
C++
87 lines
2.5 KiB
C++
// Copyright (c) 2011 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_RESOLUTION_PROXY_RESOLVER_V8_H_
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#define NET_PROXY_RESOLUTION_PROXY_RESOLVER_V8_H_
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#include <stddef.h>
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#include <memory>
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#include "base/compiler_specific.h"
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#include "base/macros.h"
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#include "base/memory/ref_counted.h"
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#include "base/strings/string16.h"
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#include "net/base/net_export.h"
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class GURL;
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namespace net {
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class ProxyInfo;
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class PacFileData;
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// A synchronous ProxyResolver-like that uses V8 to evaluate PAC scripts.
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class NET_EXPORT_PRIVATE ProxyResolverV8 {
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public:
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// Interface for the javascript bindings.
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class NET_EXPORT_PRIVATE JSBindings {
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public:
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enum ResolveDnsOperation {
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DNS_RESOLVE,
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DNS_RESOLVE_EX,
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MY_IP_ADDRESS,
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MY_IP_ADDRESS_EX,
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};
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JSBindings() {}
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// Handler for "dnsResolve()", "dnsResolveEx()", "myIpAddress()",
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// "myIpAddressEx()". Returns true on success and fills |*output| with the
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// result. If |*terminate| is set to true, then the script execution will
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// be aborted. Note that termination may not happen right away.
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virtual bool ResolveDns(const std::string& host,
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ResolveDnsOperation op,
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std::string* output,
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bool* terminate) = 0;
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// Handler for "alert(message)"
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virtual void Alert(const base::string16& message) = 0;
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// Handler for when an error is encountered. |line_number| may be -1
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// if a line number is not applicable to this error.
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virtual void OnError(int line_number, const base::string16& error) = 0;
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protected:
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virtual ~JSBindings() {}
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};
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// Constructs a ProxyResolverV8.
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static int Create(const scoped_refptr<PacFileData>& script_data,
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JSBindings* bindings,
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std::unique_ptr<ProxyResolverV8>* resolver);
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~ProxyResolverV8();
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int GetProxyForURL(const GURL& url, ProxyInfo* results, JSBindings* bindings);
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// Get total/used heap memory usage of all v8 instances used by the proxy
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// resolver.
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static size_t GetTotalHeapSize();
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static size_t GetUsedHeapSize();
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private:
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// Context holds the Javascript state for the PAC script.
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class Context;
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explicit ProxyResolverV8(std::unique_ptr<Context> context);
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std::unique_ptr<Context> context_;
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DISALLOW_COPY_AND_ASSIGN(ProxyResolverV8);
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};
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} // namespace net
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#endif // NET_PROXY_RESOLUTION_PROXY_RESOLVER_V8_H_
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