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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 "base/file_util.h" | |
| 6 #include "base/files/file_enumerator.h" | |
| 7 #include "base/threading/worker_pool.h" | |
| 8 #include "chrome/browser/extensions/api/image_writer_private/error_messages.h" | |
| 9 #include "chrome/browser/extensions/api/image_writer_private/operation.h" | |
| 10 #include "chrome/browser/extensions/api/image_writer_private/operation_manager.h
" | |
| 11 #include "content/public/browser/browser_thread.h" | |
| 12 #include "third_party/zlib/google/zip.h" | |
| 13 | |
| 14 namespace extensions { | |
| 15 namespace image_writer { | |
| 16 | |
| 17 using content::BrowserThread; | |
| 18 | |
| 19 const int kBurningBlockSize = 8 * 1024; // 8 KiB | |
| 20 | |
| 21 void Operation::Write(const base::Closure& continuation) { | |
| 22 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE)); | |
| 23 if (IsCancelled()) { | |
| 24 return; | |
| 25 } | |
| 26 | |
| 27 SetStage(image_writer_api::STAGE_WRITE); | |
| 28 | |
| 29 // TODO (haven): Unmount partitions before writing. http://crbug.com/284834 | |
| 30 | |
| 31 base::PlatformFileError result; | |
| 32 image_file_ = base::CreatePlatformFile( | |
| 33 image_path_, | |
| 34 base::PLATFORM_FILE_OPEN | base::PLATFORM_FILE_READ, | |
| 35 NULL, | |
| 36 &result); | |
| 37 if (result != base::PLATFORM_FILE_OK) { | |
| 38 Error(error::kImageOpenError); | |
| 39 return; | |
| 40 } | |
| 41 | |
| 42 device_file_ = base::CreatePlatformFile( | |
| 43 device_path_, | |
| 44 base::PLATFORM_FILE_OPEN | base::PLATFORM_FILE_WRITE, | |
| 45 NULL, | |
| 46 &result); | |
| 47 if (result != base::PLATFORM_FILE_OK) { | |
| 48 Error(error::kDeviceOpenError); | |
| 49 base::ClosePlatformFile(image_file_); | |
| 50 return; | |
| 51 } | |
| 52 | |
| 53 int64 total_size; | |
| 54 base::GetFileSize(image_path_, &total_size); | |
| 55 | |
| 56 BrowserThread::PostTask( | |
| 57 BrowserThread::FILE, | |
| 58 FROM_HERE, | |
| 59 base::Bind(&Operation::WriteChunk, this, 0, total_size, continuation)); | |
| 60 } | |
| 61 | |
| 62 void Operation::WriteChunk(const int64& bytes_written, | |
| 63 const int64& total_size, | |
| 64 const base::Closure& continuation) { | |
| 65 if (!IsCancelled()) { | |
| 66 scoped_ptr<char[]> buffer(new char[kBurningBlockSize]); | |
| 67 int64 len = base::ReadPlatformFile( | |
| 68 image_file_, bytes_written, buffer.get(), kBurningBlockSize); | |
| 69 | |
| 70 if (len > 0) { | |
| 71 if (base::WritePlatformFile( | |
| 72 device_file_, bytes_written, buffer.get(), len) == len) { | |
| 73 int percent_curr = | |
| 74 kProgressComplete * (bytes_written + len) / total_size; | |
| 75 | |
| 76 SetProgress(percent_curr); | |
| 77 | |
| 78 BrowserThread::PostTask(BrowserThread::FILE, | |
| 79 FROM_HERE, | |
| 80 base::Bind(&Operation::WriteChunk, | |
| 81 this, | |
| 82 bytes_written + len, | |
| 83 total_size, | |
| 84 continuation)); | |
| 85 return; | |
| 86 } else { | |
| 87 Error(error::kDeviceWriteError); | |
| 88 } | |
| 89 } else if (len == 0) { | |
| 90 WriteComplete(continuation); | |
| 91 } else { // len < 0 | |
| 92 Error(error::kImageReadError); | |
| 93 } | |
| 94 } | |
| 95 | |
| 96 base::ClosePlatformFile(image_file_); | |
| 97 base::ClosePlatformFile(device_file_); | |
| 98 } | |
| 99 | |
| 100 void Operation::WriteComplete(const base::Closure& continuation) { | |
| 101 SetProgress(kProgressComplete); | |
| 102 BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE, continuation); | |
| 103 } | |
| 104 | |
| 105 void Operation::VerifyWrite(const base::Closure& continuation) { | |
| 106 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE)); | |
| 107 if (IsCancelled()) { | |
| 108 return; | |
| 109 } | |
| 110 | |
| 111 SetStage(image_writer_api::STAGE_VERIFYWRITE); | |
| 112 | |
| 113 base::PlatformFileError result; | |
| 114 | |
| 115 image_file_ = base::CreatePlatformFile( | |
| 116 image_path_, | |
| 117 base::PLATFORM_FILE_OPEN | base::PLATFORM_FILE_READ, | |
| 118 NULL, | |
| 119 &result); | |
| 120 if (result != base::PLATFORM_FILE_OK) { | |
| 121 Error(error::kImageOpenError); | |
| 122 return; | |
| 123 } | |
| 124 | |
| 125 device_file_ = base::CreatePlatformFile( | |
| 126 device_path_, | |
| 127 base::PLATFORM_FILE_OPEN | base::PLATFORM_FILE_READ, | |
| 128 NULL, | |
| 129 &result); | |
| 130 if (result != base::PLATFORM_FILE_OK) { | |
| 131 Error(error::kDeviceOpenError); | |
| 132 base::ClosePlatformFile(image_file_); | |
| 133 return; | |
| 134 } | |
| 135 | |
| 136 int64 total_size; | |
| 137 base::GetFileSize(image_path_, &total_size); | |
| 138 | |
| 139 BrowserThread::PostTask( | |
| 140 BrowserThread::FILE, | |
| 141 FROM_HERE, | |
| 142 base::Bind( | |
| 143 &Operation::VerifyWriteChunk, this, 0, total_size, continuation)); | |
| 144 } | |
| 145 | |
| 146 void Operation::VerifyWriteChunk(const int64& bytes_processed, | |
| 147 const int64& total_size, | |
| 148 const base::Closure& continuation) { | |
| 149 if (!IsCancelled()) { | |
| 150 scoped_ptr<char[]> source_buffer(new char[kBurningBlockSize]); | |
| 151 scoped_ptr<char[]> target_buffer(new char[kBurningBlockSize]); | |
| 152 | |
| 153 int64 image_bytes_read = base::ReadPlatformFile( | |
| 154 image_file_, bytes_processed, source_buffer.get(), kBurningBlockSize); | |
| 155 | |
| 156 if (image_bytes_read > 0) { | |
| 157 int64 device_bytes_read = base::ReadPlatformFile( | |
| 158 device_file_, bytes_processed, target_buffer.get(), image_bytes_read); | |
| 159 if (image_bytes_read == device_bytes_read && | |
| 160 memcmp(source_buffer.get(), target_buffer.get(), image_bytes_read) == | |
| 161 0) { | |
| 162 int percent_curr = kProgressComplete * | |
| 163 (bytes_processed + image_bytes_read) / total_size; | |
| 164 | |
| 165 SetProgress(percent_curr); | |
| 166 | |
| 167 BrowserThread::PostTask(BrowserThread::FILE, | |
| 168 FROM_HERE, | |
| 169 base::Bind(&Operation::VerifyWriteChunk, | |
| 170 this, | |
| 171 bytes_processed + image_bytes_read, | |
| 172 total_size, | |
| 173 continuation)); | |
| 174 return; | |
| 175 } else { | |
| 176 Error(error::kVerificationFailed); | |
| 177 } | |
| 178 } else if (image_bytes_read == 0) { | |
| 179 VerifyWriteComplete(continuation); | |
| 180 } else { // len < 0 | |
| 181 Error(error::kImageReadError); | |
| 182 } | |
| 183 } | |
| 184 | |
| 185 base::ClosePlatformFile(image_file_); | |
| 186 base::ClosePlatformFile(device_file_); | |
| 187 } | |
| 188 | |
| 189 void Operation::VerifyWriteComplete(const base::Closure& continuation) { | |
| 190 SetProgress(kProgressComplete); | |
| 191 BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE, continuation); | |
| 192 } | |
| 193 | |
| 194 } // namespace image_writer | |
| 195 } // namespace extensions | |
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Chromium Code Reviews
Issue 61643015:
Adds imageWriterPrivate support for Windows (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master