blob: 65500b646e01721197e0b639dfbc21c42d423d1b [file] [log] [blame]
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <stddef.h>
#include <memory>
#include "base/compiler_specific.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/strings/string16.h"
#include "net/proxy_resolution/proxy_resolve_dns_operation.h"
class GURL;
namespace net {
class ProxyInfo;
class PacFileData;
} // namespace net
namespace proxy_resolver {
// A synchronous ProxyResolver-like that uses V8 to evaluate PAC scripts.
class ProxyResolverV8 {
// Interface for the javascript bindings.
class JSBindings {
JSBindings() {}
// Handler for "dnsResolve()", "dnsResolveEx()", "myIpAddress()",
// "myIpAddressEx()". Returns true on success and fills |*output| with the
// result. If |*terminate| is set to true, then the script execution will
// be aborted. Note that termination may not happen right away.
virtual bool ResolveDns(const std::string& host,
net::ProxyResolveDnsOperation op,
std::string* output,
bool* terminate) = 0;
// Handler for "alert(message)"
virtual void Alert(const base::string16& message) = 0;
// Handler for when an error is encountered. |line_number| may be -1
// if a line number is not applicable to this error.
virtual void OnError(int line_number, const base::string16& error) = 0;
virtual ~JSBindings() {}
// Constructs a ProxyResolverV8.
static int Create(const scoped_refptr<net::PacFileData>& script_data,
JSBindings* bindings,
std::unique_ptr<ProxyResolverV8>* resolver);
int GetProxyForURL(const GURL& url,
net::ProxyInfo* results,
JSBindings* bindings);
// Get total/used heap memory usage of all v8 instances used by the proxy
// resolver.
static size_t GetTotalHeapSize();
static size_t GetUsedHeapSize();
// Context holds the Javascript state for the PAC script.
class Context;
explicit ProxyResolverV8(std::unique_ptr<Context> context);
std::unique_ptr<Context> context_;
} // namespace proxy_resolver