15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "chrome/browser/extensions/api/messaging/native_message_process_host.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 72a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/bind.h" 82a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/files/file_path.h" 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/logging.h" 102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/platform_file.h" 114311e82a78ceafbe0585f51d4c8a86df9f21aa0dBen Murdoch#include "base/threading/sequenced_worker_pool.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/values.h" 132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "chrome/browser/extensions/api/messaging/native_messaging_host_manifest.h" 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "chrome/browser/extensions/api/messaging/native_process_launcher.h" 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "chrome/common/chrome_version_info.h" 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "chrome/common/extensions/features/feature.h" 172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "extensions/common/constants.h" 182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "net/base/file_stream.h" 192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "net/base/io_buffer.h" 202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "net/base/net_errors.h" 212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "net/base/net_util.h" 227dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch#include "url/gurl.h" 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace { 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Maximum message size in bytes for messages received from Native Messaging 272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// hosts. Message size is limited mainly to prevent Chrome from crashing when 282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// native application misbehaves (e.g. starts writing garbage to the pipe). 292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kMaximumMessageSize = 1024 * 1024; 302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Message header contains 4-byte integer size of the message. 322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kMessageHeaderSize = 4; 332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Size of the buffer to be allocated for each read. 352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const size_t kReadBufferSize = 4096; 362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const char kFailedToStartError[] = "Failed to start native messaging host."; 382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const char kInvalidNameError[] = 392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) "Invalid native messaging host name specified."; 402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const char kNotFoundError[] = "Specified native messaging host not found."; 412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const char kForbiddenError[] = 422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) "Access to the specified native messaging host is forbidden."; 432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const char kHostInputOuputError[] = 442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) "Error when communicating with the native messaging host."; 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace extensions { 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)NativeMessageProcessHost::NativeMessageProcessHost( 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::WeakPtr<Client> weak_client_ui, 522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const std::string& source_extension_id, 532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const std::string& native_host_name, 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int destination_port, 552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) scoped_ptr<NativeProcessLauncher> launcher) 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : weak_client_ui_(weak_client_ui), 572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) source_extension_id_(source_extension_id), 582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) native_host_name_(native_host_name), 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) destination_port_(destination_port), 602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) launcher_(launcher.Pass()), 612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) closed_(false), 622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) read_pending_(false), 632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) read_eof_(false), 642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) write_pending_(false) { 652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI)); 662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // It's safe to use base::Unretained() here because NativeMessagePort always 682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // deletes us on the IO thread. 692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) content::BrowserThread::PostTask(content::BrowserThread::IO, FROM_HERE, 702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::Bind(&NativeMessageProcessHost::LaunchHostProcess, 712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::Unretained(this))); 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)NativeMessageProcessHost::~NativeMessageProcessHost() { 752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO)); 762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) Close(std::string()); 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)scoped_ptr<NativeMessageProcessHost> NativeMessageProcessHost::Create( 814311e82a78ceafbe0585f51d4c8a86df9f21aa0dBen Murdoch gfx::NativeView native_view, 822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::WeakPtr<Client> weak_client_ui, 832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const std::string& source_extension_id, 842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const std::string& native_host_name, 852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) int destination_port) { 862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return CreateWithLauncher(weak_client_ui, source_extension_id, 872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) native_host_name, destination_port, 884311e82a78ceafbe0585f51d4c8a86df9f21aa0dBen Murdoch NativeProcessLauncher::CreateDefault(native_view)); 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)scoped_ptr<NativeMessageProcessHost> 932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)NativeMessageProcessHost::CreateWithLauncher( 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::WeakPtr<Client> weak_client_ui, 952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const std::string& source_extension_id, 962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const std::string& native_host_name, 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int destination_port, 982a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) scoped_ptr<NativeProcessLauncher> launcher) { 992a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI)); 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) scoped_ptr<NativeMessageProcessHost> process(new NativeMessageProcessHost( 1022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) weak_client_ui, source_extension_id, native_host_name, 1032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) destination_port, launcher.Pass())); 1042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return process.Pass(); 1062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 1072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void NativeMessageProcessHost::LaunchHostProcess() { 1092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO)); 1102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) GURL origin(std::string(kExtensionScheme) + "://" + source_extension_id_); 1122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) launcher_->Launch(origin, native_host_name_, 1132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::Bind(&NativeMessageProcessHost::OnHostProcessLaunched, 1142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::Unretained(this))); 1152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 1162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void NativeMessageProcessHost::OnHostProcessLaunched( 1182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NativeProcessLauncher::LaunchResult result, 1192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::PlatformFile read_file, 1202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::PlatformFile write_file) { 1212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO)); 1222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) switch (result) { 1242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) case NativeProcessLauncher::RESULT_INVALID_NAME: 1252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) Close(kInvalidNameError); 1262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return; 1272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) case NativeProcessLauncher::RESULT_NOT_FOUND: 1282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) Close(kNotFoundError); 1292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return; 1302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) case NativeProcessLauncher::RESULT_FORBIDDEN: 1312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) Close(kForbiddenError); 1322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return; 1332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) case NativeProcessLauncher::RESULT_FAILED_TO_START: 1342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) Close(kFailedToStartError); 1352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return; 1362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) case NativeProcessLauncher::RESULT_SUCCESS: 1372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) break; 1385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) read_file_ = read_file; 1414311e82a78ceafbe0585f51d4c8a86df9f21aa0dBen Murdoch 1424311e82a78ceafbe0585f51d4c8a86df9f21aa0dBen Murdoch scoped_refptr<base::TaskRunner> task_runner( 1434311e82a78ceafbe0585f51d4c8a86df9f21aa0dBen Murdoch content::BrowserThread::GetBlockingPool()-> 1444311e82a78ceafbe0585f51d4c8a86df9f21aa0dBen Murdoch GetTaskRunnerWithShutdownBehavior( 1454311e82a78ceafbe0585f51d4c8a86df9f21aa0dBen Murdoch base::SequencedWorkerPool::SKIP_ON_SHUTDOWN)); 1464311e82a78ceafbe0585f51d4c8a86df9f21aa0dBen Murdoch 1472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) read_stream_.reset(new net::FileStream( 1484311e82a78ceafbe0585f51d4c8a86df9f21aa0dBen Murdoch read_file, base::PLATFORM_FILE_READ | base::PLATFORM_FILE_ASYNC, NULL, 1494311e82a78ceafbe0585f51d4c8a86df9f21aa0dBen Murdoch task_runner)); 1502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) write_stream_.reset(new net::FileStream( 1514311e82a78ceafbe0585f51d4c8a86df9f21aa0dBen Murdoch write_file, base::PLATFORM_FILE_WRITE | base::PLATFORM_FILE_ASYNC, NULL, 1524311e82a78ceafbe0585f51d4c8a86df9f21aa0dBen Murdoch task_runner)); 1535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) WaitRead(); 1552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DoWrite(); 1562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 1572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void NativeMessageProcessHost::Send(const std::string& json) { 1592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO)); 1602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (closed_) 1625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 1635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Allocate new buffer for the message. 1652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) scoped_refptr<net::IOBufferWithSize> buffer = 1662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) new net::IOBufferWithSize(json.size() + kMessageHeaderSize); 1675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Copy size and content of the message to the buffer. 1692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) COMPILE_ASSERT(sizeof(uint32) == kMessageHeaderSize, incorrect_header_size); 1702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) *reinterpret_cast<uint32*>(buffer->data()) = json.size(); 1712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) memcpy(buffer->data() + kMessageHeaderSize, json.data(), json.size()); 1725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Push new message to the write queue. 1742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) write_queue_.push(buffer); 1755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Send() may be called before the host process is started. In that case the 1772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // message will be written when OnHostProcessLaunched() is called. If it's 1782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // already started then write the message now. 1792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (write_stream_) 1802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DoWrite(); 1812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 1825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#if defined(OS_POSIX) 1842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void NativeMessageProcessHost::OnFileCanReadWithoutBlocking(int fd) { 1852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK_EQ(fd, read_file_); 1862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DoRead(); 1872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 1885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void NativeMessageProcessHost::OnFileCanWriteWithoutBlocking(int fd) { 1902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NOTREACHED(); 1915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#endif // !defined(OS_POSIX) 1935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void NativeMessageProcessHost::ReadNowForTesting() { 1952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DoRead(); 1962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 1975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1982a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void NativeMessageProcessHost::WaitRead() { 1992a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (closed_ || read_eof_) 2002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return; 2015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(!read_pending_); 2032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // On POSIX FileStream::Read() uses blocking thread pool, so it's better to 2052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // wait for the file to become readable before calling DoRead(). Otherwise it 2062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // would always be consuming one thread in the thread pool. On Windows 2072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // FileStream uses overlapped IO, so that optimization isn't necessary there. 2082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#if defined(OS_POSIX) 20990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) base::MessageLoopForIO::current()->WatchFileDescriptor( 21090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) read_file_, false /* persistent */, base::MessageLoopForIO::WATCH_READ, 2112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) &read_watcher_, this); 2122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#else // defined(OS_POSIX) 2132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DoRead(); 2142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#endif // defined(!OS_POSIX) 2152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 2165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void NativeMessageProcessHost::DoRead() { 2182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO)); 2195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) while (!closed_ && !read_eof_ && !read_pending_) { 2212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) read_buffer_ = new net::IOBuffer(kReadBufferSize); 2222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) int result = read_stream_->Read( 223868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) read_buffer_.get(), 224868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) kReadBufferSize, 225868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) base::Bind(&NativeMessageProcessHost::OnRead, base::Unretained(this))); 2262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) HandleReadResult(result); 2275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 2292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void NativeMessageProcessHost::OnRead(int result) { 2312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO)); 2322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(read_pending_); 2332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) read_pending_ = false; 2345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) HandleReadResult(result); 2362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) WaitRead(); 2375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void NativeMessageProcessHost::HandleReadResult(int result) { 2402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO)); 2415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (closed_) 2432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return; 2445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (result > 0) { 2462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ProcessIncomingData(read_buffer_->data(), result); 2472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } else if (result == 0) { 2482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) read_eof_ = true; 2492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } else if (result == net::ERR_IO_PENDING) { 2502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) read_pending_ = true; 2512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } else { 2522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) LOG(ERROR) << "Error when reading from Native Messaging host: " << result; 2532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) Close(kHostInputOuputError); 2545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 2562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void NativeMessageProcessHost::ProcessIncomingData( 2582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const char* data, int data_size) { 2592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO)); 2602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) incoming_data_.append(data, data_size); 2622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) while (true) { 2642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (incoming_data_.size() < kMessageHeaderSize) 2652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return; 2662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) size_t message_size = 2682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) *reinterpret_cast<const uint32*>(incoming_data_.data()); 2692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (message_size > kMaximumMessageSize) { 2712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) LOG(ERROR) << "Native Messaging host tried sending a message that is " 2722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) << message_size << " bytes long."; 2732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) Close(kHostInputOuputError); 2742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return; 2752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 2762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (incoming_data_.size() < message_size + kMessageHeaderSize) 2782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return; 2792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) content::BrowserThread::PostTask(content::BrowserThread::UI, FROM_HERE, 2812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::Bind(&Client::PostMessageFromNativeProcess, weak_client_ui_, 2822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) destination_port_, 283eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch incoming_data_.substr(kMessageHeaderSize, message_size))); 2845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) incoming_data_.erase(0, kMessageHeaderSize + message_size); 2865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 2885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void NativeMessageProcessHost::DoWrite() { 2902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO)); 2912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) while (!write_pending_ && !closed_) { 293868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) if (!current_write_buffer_.get() || 294868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) !current_write_buffer_->BytesRemaining()) { 2952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (write_queue_.empty()) 2962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return; 2972a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) current_write_buffer_ = new net::DrainableIOBuffer( 298868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) write_queue_.front().get(), write_queue_.front()->size()); 2992a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) write_queue_.pop(); 3002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 3012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 302868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) int result = 303868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) write_stream_->Write(current_write_buffer_.get(), 304868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) current_write_buffer_->BytesRemaining(), 305868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) base::Bind(&NativeMessageProcessHost::OnWritten, 306868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) base::Unretained(this))); 3072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) HandleWriteResult(result); 3085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void NativeMessageProcessHost::HandleWriteResult(int result) { 3122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO)); 3132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (result <= 0) { 3152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (result == net::ERR_IO_PENDING) { 3162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) write_pending_ = true; 3172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } else { 3182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) LOG(ERROR) << "Error when writing to Native Messaging host: " << result; 3192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) Close(kHostInputOuputError); 3202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 3212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return; 3225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) current_write_buffer_->DidConsume(result); 3252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void NativeMessageProcessHost::OnWritten(int result) { 3282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO)); 3292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(write_pending_); 3312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) write_pending_ = false; 3322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) HandleWriteResult(result); 3342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DoWrite(); 3352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void NativeMessageProcessHost::Close(const std::string& error_message) { 3382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO)); 3392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!closed_) { 3412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) closed_ = true; 3422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) read_stream_.reset(); 3432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) write_stream_.reset(); 3442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) content::BrowserThread::PostTask(content::BrowserThread::UI, FROM_HERE, 3452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::Bind(&Client::CloseChannel, weak_client_ui_, 3462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) destination_port_, error_message)); 3472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 3485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace extensions 351