Adds a modified copy of talk/base to webrtc/base. It is the first step in migrating talk/base to webrtc/base.

BUG=N/A
R=andrew@webrtc.org, wu@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/12199004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@6107 4adac7df-926f-26a2-2b94-8c16560cd09d

webrtc/base/autodetectproxy.h

@@ -0,0 +1,90 @@
+/*
+ *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef WEBRTC_BASE_AUTODETECTPROXY_H_
+#define WEBRTC_BASE_AUTODETECTPROXY_H_
+
+#include <string>
+
+#include "webrtc/base/constructormagic.h"
+#include "webrtc/base/cryptstring.h"
+#include "webrtc/base/proxydetect.h"
+#include "webrtc/base/proxyinfo.h"
+#include "webrtc/base/signalthread.h"
+
+namespace rtc {
+
+///////////////////////////////////////////////////////////////////////////////
+// AutoDetectProxy
+///////////////////////////////////////////////////////////////////////////////
+
+class AsyncResolverInterface;
+class AsyncSocket;
+
+class AutoDetectProxy : public SignalThread {
+ public:
+  explicit AutoDetectProxy(const std::string& user_agent);
+
+  const ProxyInfo& proxy() const { return proxy_; }
+
+  void set_server_url(const std::string& url) {
+    server_url_ = url;
+  }
+  void set_proxy(const SocketAddress& proxy) {
+    proxy_.type = PROXY_UNKNOWN;
+    proxy_.address = proxy;
+  }
+  void set_auth_info(bool use_auth, const std::string& username,
+                     const CryptString& password) {
+    if (use_auth) {
+      proxy_.username = username;
+      proxy_.password = password;
+    }
+  }
+  // Default implementation of GetProxySettingsForUrl. Override for special
+  // implementation.
+  virtual bool GetProxyForUrl(const char* agent, const char* url,
+                              rtc::ProxyInfo* proxy) {
+    return GetProxySettingsForUrl(agent, url, proxy, true);
+  }
+  enum { MSG_TIMEOUT = SignalThread::ST_MSG_FIRST_AVAILABLE,
+         MSG_UNRESOLVABLE,
+         ADP_MSG_FIRST_AVAILABLE};
+
+ protected:
+  virtual ~AutoDetectProxy();
+
+  // SignalThread Interface
+  virtual void DoWork();
+  virtual void OnMessage(Message *msg);
+
+  void Next();
+  void Complete(ProxyType type);
+
+  void OnConnectEvent(AsyncSocket * socket);
+  void OnReadEvent(AsyncSocket * socket);
+  void OnCloseEvent(AsyncSocket * socket, int error);
+  void OnResolveResult(AsyncResolverInterface* resolver);
+  bool DoConnect();
+
+ private:
+  std::string agent_;
+  std::string server_url_;
+  ProxyInfo proxy_;
+  AsyncResolverInterface* resolver_;
+  AsyncSocket* socket_;
+  int next_;
+
+  DISALLOW_IMPLICIT_CONSTRUCTORS(AutoDetectProxy);
+};
+
+}  // namespace rtc
+
+#endif  // WEBRTC_BASE_AUTODETECTPROXY_H_