henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 1 | /* |
| 2 | * libjingle |
| 3 | * Copyright 2004--2006, Google Inc. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions are met: |
| 7 | * |
| 8 | * 1. Redistributions of source code must retain the above copyright notice, |
| 9 | * this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| 11 | * this list of conditions and the following disclaimer in the documentation |
| 12 | * and/or other materials provided with the distribution. |
| 13 | * 3. The name of the author may not be used to endorse or promote products |
| 14 | * derived from this software without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 18 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
| 19 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 20 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 21 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| 22 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 23 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| 24 | * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| 25 | * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 26 | */ |
| 27 | |
pbos@webrtc.org | b951827 | 2014-03-07 15:22:04 +0000 | [diff] [blame] | 28 | #include <assert.h> |
henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 29 | |
| 30 | #ifdef WIN32 |
wu@webrtc.org | 1b57131 | 2014-01-23 22:12:45 +0000 | [diff] [blame] | 31 | // TODO(grunell): Remove io.h includes when Chromium has started |
| 32 | // to use AEC in each source. http://crbug.com/264611. |
| 33 | #include <io.h> |
henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 34 | #include "talk/base/win32.h" |
| 35 | #endif |
| 36 | |
| 37 | #include "talk/base/pathutils.h" |
| 38 | #include "talk/base/fileutils.h" |
| 39 | #include "talk/base/stringutils.h" |
| 40 | #include "talk/base/stream.h" |
| 41 | |
| 42 | #ifdef WIN32 |
| 43 | #include "talk/base/win32filesystem.h" |
| 44 | #else |
| 45 | #include "talk/base/unixfilesystem.h" |
| 46 | #endif |
| 47 | |
| 48 | #ifndef WIN32 |
| 49 | #define MAX_PATH 260 |
| 50 | #endif |
| 51 | |
| 52 | namespace talk_base { |
| 53 | |
| 54 | ////////////////////////// |
| 55 | // Directory Iterator // |
| 56 | ////////////////////////// |
| 57 | |
| 58 | // A DirectoryIterator is created with a given directory. It originally points |
| 59 | // to the first file in the directory, and can be advanecd with Next(). This |
| 60 | // allows you to get information about each file. |
| 61 | |
| 62 | // Constructor |
| 63 | DirectoryIterator::DirectoryIterator() |
| 64 | #ifdef _WIN32 |
| 65 | : handle_(INVALID_HANDLE_VALUE) { |
| 66 | #else |
| 67 | : dir_(NULL), dirent_(NULL) { |
| 68 | #endif |
| 69 | } |
| 70 | |
| 71 | // Destructor |
| 72 | DirectoryIterator::~DirectoryIterator() { |
| 73 | #ifdef WIN32 |
| 74 | if (handle_ != INVALID_HANDLE_VALUE) |
| 75 | ::FindClose(handle_); |
| 76 | #else |
| 77 | if (dir_) |
| 78 | closedir(dir_); |
| 79 | #endif |
| 80 | } |
| 81 | |
| 82 | // Starts traversing a directory. |
| 83 | // dir is the directory to traverse |
| 84 | // returns true if the directory exists and is valid |
| 85 | bool DirectoryIterator::Iterate(const Pathname &dir) { |
| 86 | directory_ = dir.pathname(); |
| 87 | #ifdef WIN32 |
| 88 | if (handle_ != INVALID_HANDLE_VALUE) |
| 89 | ::FindClose(handle_); |
| 90 | std::string d = dir.pathname() + '*'; |
| 91 | handle_ = ::FindFirstFile(ToUtf16(d).c_str(), &data_); |
| 92 | if (handle_ == INVALID_HANDLE_VALUE) |
| 93 | return false; |
| 94 | #else |
| 95 | if (dir_ != NULL) |
| 96 | closedir(dir_); |
| 97 | dir_ = ::opendir(directory_.c_str()); |
| 98 | if (dir_ == NULL) |
| 99 | return false; |
| 100 | dirent_ = readdir(dir_); |
| 101 | if (dirent_ == NULL) |
| 102 | return false; |
| 103 | |
| 104 | if (::stat(std::string(directory_ + Name()).c_str(), &stat_) != 0) |
| 105 | return false; |
| 106 | #endif |
| 107 | return true; |
| 108 | } |
| 109 | |
| 110 | // Advances to the next file |
| 111 | // returns true if there were more files in the directory. |
| 112 | bool DirectoryIterator::Next() { |
| 113 | #ifdef WIN32 |
| 114 | return ::FindNextFile(handle_, &data_) == TRUE; |
| 115 | #else |
| 116 | dirent_ = ::readdir(dir_); |
| 117 | if (dirent_ == NULL) |
| 118 | return false; |
| 119 | |
| 120 | return ::stat(std::string(directory_ + Name()).c_str(), &stat_) == 0; |
| 121 | #endif |
| 122 | } |
| 123 | |
| 124 | // returns true if the file currently pointed to is a directory |
| 125 | bool DirectoryIterator::IsDirectory() const { |
| 126 | #ifdef WIN32 |
| 127 | return (data_.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != FALSE; |
| 128 | #else |
| 129 | return S_ISDIR(stat_.st_mode); |
| 130 | #endif |
| 131 | } |
| 132 | |
| 133 | // returns the name of the file currently pointed to |
| 134 | std::string DirectoryIterator::Name() const { |
| 135 | #ifdef WIN32 |
| 136 | return ToUtf8(data_.cFileName); |
| 137 | #else |
| 138 | assert(dirent_ != NULL); |
| 139 | return dirent_->d_name; |
| 140 | #endif |
| 141 | } |
| 142 | |
| 143 | // returns the size of the file currently pointed to |
| 144 | size_t DirectoryIterator::FileSize() const { |
| 145 | #ifndef WIN32 |
| 146 | return stat_.st_size; |
| 147 | #else |
| 148 | return data_.nFileSizeLow; |
| 149 | #endif |
| 150 | } |
| 151 | |
| 152 | // returns the last modified time of this file |
| 153 | time_t DirectoryIterator::FileModifyTime() const { |
| 154 | #ifdef WIN32 |
| 155 | time_t val; |
| 156 | FileTimeToUnixTime(data_.ftLastWriteTime, &val); |
| 157 | return val; |
| 158 | #else |
| 159 | return stat_.st_mtime; |
| 160 | #endif |
| 161 | } |
| 162 | |
| 163 | FilesystemInterface* Filesystem::default_filesystem_ = NULL; |
| 164 | |
| 165 | FilesystemInterface *Filesystem::EnsureDefaultFilesystem() { |
| 166 | if (!default_filesystem_) { |
| 167 | #ifdef WIN32 |
| 168 | default_filesystem_ = new Win32Filesystem(); |
| 169 | #else |
| 170 | default_filesystem_ = new UnixFilesystem(); |
| 171 | #endif |
| 172 | } |
| 173 | return default_filesystem_; |
| 174 | } |
| 175 | |
| 176 | bool FilesystemInterface::CopyFolder(const Pathname &old_path, |
| 177 | const Pathname &new_path) { |
| 178 | bool success = true; |
| 179 | VERIFY(IsFolder(old_path)); |
| 180 | Pathname new_dir; |
| 181 | new_dir.SetFolder(new_path.pathname()); |
| 182 | Pathname old_dir; |
| 183 | old_dir.SetFolder(old_path.pathname()); |
| 184 | if (!CreateFolder(new_dir)) |
| 185 | return false; |
| 186 | DirectoryIterator *di = IterateDirectory(); |
| 187 | if (!di) |
| 188 | return false; |
| 189 | if (di->Iterate(old_dir.pathname())) { |
| 190 | do { |
| 191 | if (di->Name() == "." || di->Name() == "..") |
| 192 | continue; |
| 193 | Pathname source; |
| 194 | Pathname dest; |
| 195 | source.SetFolder(old_dir.pathname()); |
| 196 | dest.SetFolder(new_path.pathname()); |
| 197 | source.SetFilename(di->Name()); |
| 198 | dest.SetFilename(di->Name()); |
| 199 | if (!CopyFileOrFolder(source, dest)) |
| 200 | success = false; |
| 201 | } while (di->Next()); |
| 202 | } |
| 203 | delete di; |
| 204 | return success; |
| 205 | } |
| 206 | |
| 207 | bool FilesystemInterface::DeleteFolderContents(const Pathname &folder) { |
| 208 | bool success = true; |
| 209 | VERIFY(IsFolder(folder)); |
| 210 | DirectoryIterator *di = IterateDirectory(); |
| 211 | if (!di) |
| 212 | return false; |
| 213 | if (di->Iterate(folder)) { |
| 214 | do { |
| 215 | if (di->Name() == "." || di->Name() == "..") |
| 216 | continue; |
| 217 | Pathname subdir; |
| 218 | subdir.SetFolder(folder.pathname()); |
| 219 | if (di->IsDirectory()) { |
| 220 | subdir.AppendFolder(di->Name()); |
| 221 | if (!DeleteFolderAndContents(subdir)) { |
| 222 | success = false; |
| 223 | } |
| 224 | } else { |
| 225 | subdir.SetFilename(di->Name()); |
| 226 | if (!DeleteFile(subdir)) { |
| 227 | success = false; |
| 228 | } |
| 229 | } |
| 230 | } while (di->Next()); |
| 231 | } |
| 232 | delete di; |
| 233 | return success; |
| 234 | } |
| 235 | |
| 236 | bool FilesystemInterface::CleanAppTempFolder() { |
| 237 | Pathname path; |
| 238 | if (!GetAppTempFolder(&path)) |
| 239 | return false; |
| 240 | if (IsAbsent(path)) |
| 241 | return true; |
| 242 | if (!IsTemporaryPath(path)) { |
| 243 | ASSERT(false); |
| 244 | return false; |
| 245 | } |
| 246 | return DeleteFolderContents(path); |
| 247 | } |
| 248 | |
| 249 | Pathname Filesystem::GetCurrentDirectory() { |
| 250 | return EnsureDefaultFilesystem()->GetCurrentDirectory(); |
| 251 | } |
| 252 | |
| 253 | bool CreateUniqueFile(Pathname& path, bool create_empty) { |
| 254 | LOG(LS_INFO) << "Path " << path.pathname() << std::endl; |
| 255 | // If no folder is supplied, use the temporary folder |
| 256 | if (path.folder().empty()) { |
| 257 | Pathname temporary_path; |
| 258 | if (!Filesystem::GetTemporaryFolder(temporary_path, true, NULL)) { |
| 259 | printf("Get temp failed\n"); |
| 260 | return false; |
| 261 | } |
| 262 | path.SetFolder(temporary_path.pathname()); |
| 263 | } |
| 264 | |
| 265 | // If no filename is supplied, use a temporary name |
| 266 | if (path.filename().empty()) { |
| 267 | std::string folder(path.folder()); |
| 268 | std::string filename = Filesystem::TempFilename(folder, "gt"); |
| 269 | path.SetPathname(filename); |
| 270 | if (!create_empty) { |
| 271 | Filesystem::DeleteFile(path.pathname()); |
| 272 | } |
| 273 | return true; |
| 274 | } |
| 275 | |
| 276 | // Otherwise, create a unique name based on the given filename |
| 277 | // foo.txt -> foo-N.txt |
| 278 | const std::string basename = path.basename(); |
| 279 | const size_t MAX_VERSION = 100; |
| 280 | size_t version = 0; |
| 281 | while (version < MAX_VERSION) { |
| 282 | std::string pathname = path.pathname(); |
| 283 | |
| 284 | if (!Filesystem::IsFile(pathname)) { |
| 285 | if (create_empty) { |
| 286 | FileStream* fs = Filesystem::OpenFile(pathname, "w"); |
| 287 | delete fs; |
| 288 | } |
| 289 | return true; |
| 290 | } |
| 291 | version += 1; |
| 292 | char version_base[MAX_PATH]; |
| 293 | sprintfn(version_base, ARRAY_SIZE(version_base), "%s-%u", |
| 294 | basename.c_str(), version); |
| 295 | path.SetBasename(version_base); |
| 296 | } |
| 297 | return true; |
| 298 | } |
| 299 | |
wu@webrtc.org | 1b57131 | 2014-01-23 22:12:45 +0000 | [diff] [blame] | 300 | // Taken from Chromium's base/platform_file_*.cc. |
| 301 | // TODO(grunell): Remove when Chromium has started to use AEC in each source. |
| 302 | // http://crbug.com/264611. |
| 303 | FILE* FdopenPlatformFileForWriting(PlatformFile file) { |
| 304 | #if defined(WIN32) |
| 305 | if (file == kInvalidPlatformFileValue) |
| 306 | return NULL; |
| 307 | int fd = _open_osfhandle(reinterpret_cast<intptr_t>(file), 0); |
| 308 | if (fd < 0) |
| 309 | return NULL; |
| 310 | return _fdopen(fd, "w"); |
| 311 | #else |
| 312 | return fdopen(file, "w"); |
| 313 | #endif |
| 314 | } |
| 315 | |
| 316 | bool ClosePlatformFile(PlatformFile file) { |
| 317 | #if defined(WIN32) |
| 318 | return CloseHandle(file) != 0; |
| 319 | #else |
| 320 | return close(file); |
| 321 | #endif |
| 322 | } |
| 323 | |
henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 324 | } // namespace talk_base |