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| 1 // Copyright 2013 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 #include "remoting/host/native_messaging/native_messaging_channel.h" | |
| 6 | |
| 7 #include "base/basictypes.h" | |
| 8 #include "base/bind.h" | |
| 9 #include "base/callback.h" | |
| 10 #include "base/callback_helpers.h" | |
| 11 #include "base/location.h" | |
| 12 #include "base/values.h" | |
| 13 | |
| 14 #if defined(OS_POSIX) | |
| 15 #include <unistd.h> | |
| 16 #endif | |
| 17 | |
| 18 namespace { | |
| 19 | |
| 20 base::File DuplicatePlatformFile(base::File file) { | |
| 21 base::PlatformFile result; | |
| 22 #if defined(OS_WIN) | |
| 23 if (!DuplicateHandle(GetCurrentProcess(), | |
| 24 file.TakePlatformFile(), | |
| 25 GetCurrentProcess(), | |
| 26 &result, | |
| 27 0, | |
| 28 FALSE, | |
| 29 DUPLICATE_CLOSE_SOURCE | DUPLICATE_SAME_ACCESS)) { | |
| 30 PLOG(ERROR) << "Failed to duplicate handle " << file.GetPlatformFile(); | |
| 31 return base::File(); | |
| 32 } | |
| 33 return base::File(result); | |
| 34 #elif defined(OS_POSIX) | |
| 35 result = dup(file.GetPlatformFile()); | |
| 36 return base::File(result); | |
| 37 #else | |
| 38 #error Not implemented. | |
| 39 #endif | |
| 40 } | |
| 41 | |
| 42 } // namespace | |
| 43 | |
| 44 namespace remoting { | |
| 45 | |
| 46 NativeMessagingChannel::NativeMessagingChannel( | |
| 47 base::File input, | |
| 48 base::File output) | |
| 49 : native_messaging_reader_(DuplicatePlatformFile(input.Pass())), | |
| 50 native_messaging_writer_(new NativeMessagingWriter( | |
| 51 DuplicatePlatformFile(output.Pass()))), | |
| 52 weak_factory_(this) { | |
| 53 weak_ptr_ = weak_factory_.GetWeakPtr(); | |
| 54 } | |
| 55 | |
| 56 NativeMessagingChannel::~NativeMessagingChannel() { | |
| 57 } | |
| 58 | |
| 59 void NativeMessagingChannel::Start(const SendMessageCallback& received_message, | |
| 60 const base::Closure& quit_closure) { | |
| 61 DCHECK(CalledOnValidThread()); | |
| 62 DCHECK(received_message_.is_null()); | |
| 63 DCHECK(quit_closure_.is_null()); | |
| 64 | |
| 65 received_message_ = received_message; | |
| 66 quit_closure_ = quit_closure; | |
| 67 | |
| 68 native_messaging_reader_.Start( | |
| 69 base::Bind(&NativeMessagingChannel::ProcessMessage, weak_ptr_), | |
| 70 base::Bind(&NativeMessagingChannel::Shutdown, weak_ptr_)); | |
| 71 } | |
| 72 | |
| 73 void NativeMessagingChannel::ProcessMessage(scoped_ptr<base::Value> message) { | |
| 74 DCHECK(CalledOnValidThread()); | |
| 75 | |
| 76 if (message->GetType() != base::Value::TYPE_DICTIONARY) { | |
| 77 LOG(ERROR) << "Expected DictionaryValue"; | |
| 78 Shutdown(); | |
| 79 return; | |
| 80 } | |
| 81 | |
| 82 scoped_ptr<base::DictionaryValue> message_dict( | |
| 83 static_cast<base::DictionaryValue*>(message.release())); | |
| 84 received_message_.Run(message_dict.Pass()); | |
| 85 } | |
| 86 | |
| 87 void NativeMessagingChannel::SendMessage( | |
| 88 scoped_ptr<base::DictionaryValue> message) { | |
| 89 DCHECK(CalledOnValidThread()); | |
| 90 | |
| 91 bool success = message && native_messaging_writer_; | |
| 92 if (success) | |
| 93 success = native_messaging_writer_->WriteMessage(*message); | |
| 94 | |
| 95 if (!success) { | |
| 96 // Close the write pipe so no more responses will be sent. | |
| 97 native_messaging_writer_.reset(); | |
| 98 Shutdown(); | |
| 99 } | |
| 100 } | |
| 101 | |
| 102 void NativeMessagingChannel::Shutdown() { | |
| 103 DCHECK(CalledOnValidThread()); | |
| 104 | |
| 105 if (!quit_closure_.is_null()) | |
| 106 base::ResetAndReturn(&quit_closure_).Run(); | |
| 107 } | |
| 108 | |
| 109 } // namespace remoting | |
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Chromium Code Reviews
Issue 558403002:
Remote Assistance on Chrome OS Part II - Native Messaging renaming (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master