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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef REMOTING_HOST_WIN_UNPRIVILEGED_PROCESS_DELEGATE_H_
      6 #define REMOTING_HOST_WIN_UNPRIVILEGED_PROCESS_DELEGATE_H_
      7 
      8 #include "base/basictypes.h"
      9 #include "base/compiler_specific.h"
     10 #include "base/files/file_path.h"
     11 #include "base/memory/ref_counted.h"
     12 #include "base/memory/scoped_ptr.h"
     13 #include "base/threading/non_thread_safe.h"
     14 #include "base/win/scoped_handle.h"
     15 #include "ipc/ipc_listener.h"
     16 #include "remoting/host/win/worker_process_launcher.h"
     17 
     18 class CommandLine;
     19 
     20 namespace base {
     21 class SingleThreadTaskRunner;
     22 } // namespace base
     23 
     24 namespace IPC {
     25 class ChannelProxy;
     26 class Message;
     27 } // namespace IPC
     28 
     29 namespace remoting {
     30 
     31 // Implements logic for launching and monitoring a worker process under a less
     32 // privileged user account.
     33 class UnprivilegedProcessDelegate
     34     : public base::NonThreadSafe,
     35       public IPC::Listener,
     36       public WorkerProcessLauncher::Delegate {
     37  public:
     38   UnprivilegedProcessDelegate(
     39       scoped_refptr<base::SingleThreadTaskRunner> io_task_runner,
     40       scoped_ptr<CommandLine> target_command);
     41   virtual ~UnprivilegedProcessDelegate();
     42 
     43   // WorkerProcessLauncher::Delegate implementation.
     44   virtual void LaunchProcess(WorkerProcessLauncher* event_handler) OVERRIDE;
     45   virtual void Send(IPC::Message* message) OVERRIDE;
     46   virtual void CloseChannel() OVERRIDE;
     47   virtual void KillProcess() OVERRIDE;
     48 
     49  private:
     50   // IPC::Listener implementation.
     51   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
     52   virtual void OnChannelConnected(int32 peer_pid) OVERRIDE;
     53   virtual void OnChannelError() OVERRIDE;
     54 
     55   void ReportFatalError();
     56   void ReportProcessLaunched(base::win::ScopedHandle worker_process);
     57 
     58   // The task runner serving job object notifications.
     59   scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
     60 
     61   // Command line of the launched process.
     62   scoped_ptr<CommandLine> target_command_;
     63 
     64   // The server end of the IPC channel used to communicate to the worker
     65   // process.
     66   scoped_ptr<IPC::ChannelProxy> channel_;
     67 
     68   WorkerProcessLauncher* event_handler_;
     69 
     70   // The handle of the worker process, if launched.
     71   base::win::ScopedHandle worker_process_;
     72 
     73   DISALLOW_COPY_AND_ASSIGN(UnprivilegedProcessDelegate);
     74 };
     75 
     76 }  // namespace remoting
     77 
     78 #endif  // REMOTING_HOST_WIN_UNPRIVILEGED_PROCESS_DELEGATE_H_
     79