Remove webrtc/libjingle/{examples,session}.

webrtc/libjingle/session/tunnel/securetunnelsessionclient.h

-/*
- * libjingle
- * Copyright 2004--2008, Google Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- *  1. Redistributions of source code must retain the above copyright notice,
- *     this list of conditions and the following disclaimer.
- *  2. Redistributions in binary form must reproduce the above copyright notice,
- *     this list of conditions and the following disclaimer in the documentation
- *     and/or other materials provided with the distribution.
- *  3. The name of the author may not be used to endorse or promote products
- *     derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-// SecureTunnelSessionClient and SecureTunnelSession.
-// SecureTunnelSessionClient extends TunnelSessionClient to exchange
-// certificates as part of the session description.
-// SecureTunnelSession is a TunnelSession that wraps the underlying
-// tunnel stream into an SSLStreamAdapter.
-
-#ifndef WEBRTC_LIBJINGLE_SESSION_TUNNEL_SECURETUNNELSESSIONCLIENT_H_
-#define WEBRTC_LIBJINGLE_SESSION_TUNNEL_SECURETUNNELSESSIONCLIENT_H_
-
-#include <string>
-
-#include "webrtc/libjingle/session/tunnel/tunnelsessionclient.h"
-#include "webrtc/base/sslidentity.h"
-#include "webrtc/base/sslstreamadapter.h"
-
-namespace cricket {
-
-class SecureTunnelSession;  // below
-
-// SecureTunnelSessionClient
-
-// This TunnelSessionClient establishes secure tunnels protected by
-// SSL/TLS. The PseudoTcpChannel stream is wrapped with an
-// SSLStreamAdapter. An SSLIdentity must be set or generated.
-//
-// The TunnelContentDescription is extended to include the client and
-// server certificates. The initiator acts as the client. The session
-// initiate stanza carries a description that contains the client's
-// certificate, and the session accept response's description has the
-// server certificate added to it.
-
-class SecureTunnelSessionClient : public TunnelSessionClient {
- public:
-  // The jid is used as the name for sessions for outgoing tunnels.
-  // manager is the SessionManager to which we register this client
-  // and its sessions.
-  SecureTunnelSessionClient(const buzz::Jid& jid, SessionManager* manager);
-
-  // Configures this client to use a preexisting SSLIdentity.
-  // The client takes ownership of the identity object.
-  // Use either SetIdentity or GenerateIdentity, and only once.
-  void SetIdentity(rtc::SSLIdentity* identity);
-
-  // Generates an identity from nothing.
-  // Returns true if generation was successful.
-  // Use either SetIdentity or GenerateIdentity, and only once.
-  bool GenerateIdentity();
-
-  // Returns our identity for SSL purposes, as either set by
-  // SetIdentity() or generated by GenerateIdentity(). Call this
-  // method only after our identity has been successfully established
-  // by one of those methods.
-  rtc::SSLIdentity& GetIdentity() const;
-
-  // Inherited methods
-  virtual void OnIncomingTunnel(const buzz::Jid& jid, Session *session);
-  virtual bool ParseContent(SignalingProtocol protocol,
-                            const buzz::XmlElement* elem,
-                            ContentDescription** content,
-                            ParseError* error);
-  virtual bool WriteContent(SignalingProtocol protocol,
-                            const ContentDescription* content,
-                            buzz::XmlElement** elem,
-                            WriteError* error);
-  virtual SessionDescription* CreateOffer(
-      const buzz::Jid &jid, const std::string &description);
-  virtual SessionDescription* CreateAnswer(
-      const SessionDescription* offer);
-
- protected:
-  virtual TunnelSession* MakeTunnelSession(
-      Session* session, rtc::Thread* stream_thread,
-      TunnelSessionRole role);
-
- private:
-  // Our identity (key and certificate) for SSL purposes. The
-  // certificate part will be communicated within the session
-  // description. The identity will be passed to the SSLStreamAdapter
-  // and used for SSL authentication.
-  rtc::scoped_ptr<rtc::SSLIdentity> identity_;
-
-  DISALLOW_COPY_AND_ASSIGN(SecureTunnelSessionClient);
-};
-
-// SecureTunnelSession:
-// A TunnelSession represents one session for one client. It
-// provides the actual tunnel stream and handles state changes.
-// A SecureTunnelSession is a TunnelSession that wraps the underlying
-// tunnel stream into an SSLStreamAdapter.
-
-class SecureTunnelSession : public TunnelSession {
- public:
-  // This TunnelSession will tie together the given client and session.
-  // stream_thread is passed to the PseudoTCPChannel: it's the thread
-  // designated to interact with the tunnel stream.
-  // role is either INITIATOR or RESPONDER, depending on who is
-  // initiating the session.
-  SecureTunnelSession(SecureTunnelSessionClient* client, Session* session,
-                      rtc::Thread* stream_thread,
-                      TunnelSessionRole role);
-
-  // Returns the stream that implements the actual P2P tunnel.
-  // This may be called only once. Caller is responsible for freeing
-  // the returned object.
-  virtual rtc::StreamInterface* GetStream();
-
- protected:
-  // Inherited method: callback on accepting a session.
-  virtual void OnAccept();
-
-  // Helper method for GetStream() that Instantiates the
-  // SSLStreamAdapter to wrap the PseudoTcpChannel's stream, and
-  // configures it with our identity and role.
-  rtc::StreamInterface* MakeSecureStream(
-      rtc::StreamInterface* stream);
-
-  // Our role in requesting the tunnel: INITIATOR or
-  // RESPONDER. Translates to our role in SSL negotiation:
-  // respectively client or server. Also indicates which slot of the
-  // SecureTunnelContentDescription our cert goes into: client-cert or
-  // server-cert respectively.
-  TunnelSessionRole role_;
-
-  // This is the stream representing the usable tunnel endpoint.  It's
-  // a StreamReference wrapping the SSLStreamAdapter instance, which
-  // further wraps a PseudoTcpChannel::InternalStream. The
-  // StreamReference is because in the case of CreateTunnel(), the
-  // stream endpoint is returned early, but we need to keep a handle
-  // on it so we can setup the peer certificate when we receive it
-  // later.
-  rtc::scoped_ptr<rtc::StreamReference> ssl_stream_reference_;
-
-  DISALLOW_COPY_AND_ASSIGN(SecureTunnelSession);
-};
-
-}  // namespace cricket
-
-#endif  // WEBRTC_LIBJINGLE_SESSION_TUNNEL_SECURETUNNELSESSIONCLIENT_H_