1 // 2 // Copyright (C) 2011 The Android Open Source Project 3 // 4 // Licensed under the Apache License, Version 2.0 (the "License"); 5 // you may not use this file except in compliance with the License. 6 // You may obtain a copy of the License at 7 // 8 // http://www.apache.org/licenses/LICENSE-2.0 9 // 10 // Unless required by applicable law or agreed to in writing, software 11 // distributed under the License is distributed on an "AS IS" BASIS, 12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 // See the License for the specific language governing permissions and 14 // limitations under the License. 15 // 16 17 #ifndef UPDATE_ENGINE_CHROME_BROWSER_PROXY_RESOLVER_H_ 18 #define UPDATE_ENGINE_CHROME_BROWSER_PROXY_RESOLVER_H_ 19 20 #include <deque> 21 #include <map> 22 #include <string> 23 24 #include <base/memory/weak_ptr.h> 25 26 #include "update_engine/proxy_resolver.h" 27 28 namespace brillo { 29 class Error; 30 } // namespace brillo 31 32 namespace org { 33 namespace chromium { 34 class NetworkProxyServiceInterfaceProxyInterface; 35 } // namespace chromium 36 } // namespace org 37 38 namespace chromeos_update_engine { 39 40 class ChromeBrowserProxyResolver : public ProxyResolver { 41 public: 42 explicit ChromeBrowserProxyResolver( 43 org::chromium::NetworkProxyServiceInterfaceProxyInterface* dbus_proxy); 44 ~ChromeBrowserProxyResolver() override; 45 46 // Parses a string-encoded list of proxies and returns a deque 47 // of individual proxies. The last one will always be kNoProxy. 48 static std::deque<std::string> ParseProxyString(const std::string& input); 49 50 // ProxyResolver: 51 ProxyRequestId GetProxiesForUrl(const std::string& url, 52 const ProxiesResolvedFn& callback) override; 53 bool CancelProxyRequest(ProxyRequestId request) override; 54 55 private: 56 // Callback for successful D-Bus calls made by GetProxiesForUrl(). 57 void OnResolveProxyResponse(ProxyRequestId request_id, 58 const std::string& proxy_info, 59 const std::string& error_message); 60 61 // Callback for failed D-Bus calls made by GetProxiesForUrl(). 62 void OnResolveProxyError(ProxyRequestId request_id, brillo::Error* error); 63 64 // Finds the callback identified by |request_id| in |pending_callbacks_|, 65 // passes |proxies| to it, and deletes it. Does nothing if the request has 66 // been cancelled. 67 void RunCallback(ProxyRequestId request_id, 68 const std::deque<std::string>& proxies); 69 70 // D-Bus proxy for resolving network proxies. 71 org::chromium::NetworkProxyServiceInterfaceProxyInterface* dbus_proxy_; 72 73 // Next ID to return from GetProxiesForUrl(). 74 ProxyRequestId next_request_id_; 75 76 // Callbacks that were passed to GetProxiesForUrl() but haven't yet been run. 77 std::map<ProxyRequestId, ProxiesResolvedFn> pending_callbacks_; 78 79 base::WeakPtrFactory<ChromeBrowserProxyResolver> weak_ptr_factory_; 80 81 DISALLOW_COPY_AND_ASSIGN(ChromeBrowserProxyResolver); 82 }; 83 84 } // namespace chromeos_update_engine 85 86 #endif // UPDATE_ENGINE_CHROME_BROWSER_PROXY_RESOLVER_H_ 87