1 /* 2 * libjingle 3 * Copyright 2004--2005, Google Inc. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #ifndef TALK_BASE_AUTODETECTPROXY_H_ 29 #define TALK_BASE_AUTODETECTPROXY_H_ 30 31 #include <string> 32 33 #include "talk/base/constructormagic.h" 34 #include "talk/base/cryptstring.h" 35 #include "talk/base/proxydetect.h" 36 #include "talk/base/proxyinfo.h" 37 #include "talk/base/signalthread.h" 38 39 namespace talk_base { 40 41 /////////////////////////////////////////////////////////////////////////////// 42 // AutoDetectProxy 43 /////////////////////////////////////////////////////////////////////////////// 44 45 class AsyncResolverInterface; 46 class AsyncSocket; 47 48 class AutoDetectProxy : public SignalThread { 49 public: 50 explicit AutoDetectProxy(const std::string& user_agent); 51 proxy()52 const ProxyInfo& proxy() const { return proxy_; } 53 set_server_url(const std::string & url)54 void set_server_url(const std::string& url) { 55 server_url_ = url; 56 } set_proxy(const SocketAddress & proxy)57 void set_proxy(const SocketAddress& proxy) { 58 proxy_.type = PROXY_UNKNOWN; 59 proxy_.address = proxy; 60 } set_auth_info(bool use_auth,const std::string & username,const CryptString & password)61 void set_auth_info(bool use_auth, const std::string& username, 62 const CryptString& password) { 63 if (use_auth) { 64 proxy_.username = username; 65 proxy_.password = password; 66 } 67 } 68 // Default implementation of GetProxySettingsForUrl. Override for special 69 // implementation. GetProxyForUrl(const char * agent,const char * url,talk_base::ProxyInfo * proxy)70 virtual bool GetProxyForUrl(const char* agent, const char* url, 71 talk_base::ProxyInfo* proxy) { 72 return GetProxySettingsForUrl(agent, url, proxy, true); 73 } 74 enum { MSG_TIMEOUT = SignalThread::ST_MSG_FIRST_AVAILABLE, 75 MSG_UNRESOLVABLE, 76 ADP_MSG_FIRST_AVAILABLE}; 77 78 protected: 79 virtual ~AutoDetectProxy(); 80 81 // SignalThread Interface 82 virtual void DoWork(); 83 virtual void OnMessage(Message *msg); 84 85 void Next(); 86 void Complete(ProxyType type); 87 88 void OnConnectEvent(AsyncSocket * socket); 89 void OnReadEvent(AsyncSocket * socket); 90 void OnCloseEvent(AsyncSocket * socket, int error); 91 void OnResolveResult(AsyncResolverInterface* resolver); 92 bool DoConnect(); 93 94 private: 95 std::string agent_; 96 std::string server_url_; 97 ProxyInfo proxy_; 98 AsyncResolverInterface* resolver_; 99 AsyncSocket* socket_; 100 int next_; 101 102 DISALLOW_IMPLICIT_CONSTRUCTORS(AutoDetectProxy); 103 }; 104 105 } // namespace talk_base 106 107 #endif // TALK_BASE_AUTODETECTPROXY_H_ 108