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      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/cryptstring.h"
     34 #include "talk/base/proxyinfo.h"
     35 #include "talk/base/signalthread.h"
     36 
     37 namespace talk_base {
     38 
     39 ///////////////////////////////////////////////////////////////////////////////
     40 // AutoDetectProxy
     41 ///////////////////////////////////////////////////////////////////////////////
     42 
     43 class AsyncSocket;
     44 
     45 class AutoDetectProxy : public SignalThread {
     46  public:
     47   explicit AutoDetectProxy(const std::string& user_agent);
     48 
     49   const ProxyInfo& proxy() const { return proxy_; }
     50 
     51   void set_server_url(const std::string& url) {
     52     server_url_ = url;
     53   }
     54   void set_proxy(const SocketAddress& proxy) {
     55     proxy_.type = PROXY_UNKNOWN;
     56     proxy_.address = proxy;
     57   }
     58   void set_auth_info(bool use_auth, const std::string& username,
     59                      const CryptString& password) {
     60     if (use_auth) {
     61       proxy_.username = username;
     62       proxy_.password = password;
     63     }
     64   }
     65 
     66  protected:
     67   virtual ~AutoDetectProxy();
     68 
     69   // SignalThread Interface
     70   virtual void DoWork();
     71   virtual void OnMessage(Message *msg);
     72 
     73   void Next();
     74   void Complete(ProxyType type);
     75 
     76   void OnConnectEvent(AsyncSocket * socket);
     77   void OnReadEvent(AsyncSocket * socket);
     78   void OnCloseEvent(AsyncSocket * socket, int error);
     79 
     80  private:
     81   std::string agent_;
     82   std::string server_url_;
     83   ProxyInfo proxy_;
     84   AsyncSocket* socket_;
     85   int next_;
     86 };
     87 
     88 }  // namespace talk_base
     89 
     90 #endif  // TALK_BASE_AUTODETECTPROXY_H_
     91