| // 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. |
| |
| #ifndef SERVICES_PROXY_RESOLVER_PROXY_RESOLVER_V8_H_ |
| #define SERVICES_PROXY_RESOLVER_PROXY_RESOLVER_V8_H_ |
| |
| #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 { |
| public: |
| // Interface for the javascript bindings. |
| class JSBindings { |
| public: |
| 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; |
| |
| protected: |
| virtual ~JSBindings() {} |
| }; |
| |
| // Constructs a ProxyResolverV8. |
| static int Create(const scoped_refptr<net::PacFileData>& script_data, |
| JSBindings* bindings, |
| std::unique_ptr<ProxyResolverV8>* resolver); |
| |
| ~ProxyResolverV8(); |
| |
| 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(); |
| |
| private: |
| // Context holds the Javascript state for the PAC script. |
| class Context; |
| |
| explicit ProxyResolverV8(std::unique_ptr<Context> context); |
| |
| std::unique_ptr<Context> context_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ProxyResolverV8); |
| }; |
| |
| } // namespace proxy_resolver |
| |
| #endif // SERVICES_PROXY_RESOLVER_PROXY_RESOLVER_V8_H_ |