| /* |
| * Copyright 2004 The WebRTC Project Authors. All rights reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #if defined(WEBRTC_WIN) |
| #include "webrtc/base/win32.h" |
| #include <shellapi.h> |
| #include <shlobj.h> |
| #include <tchar.h> |
| #endif // WEBRTC_WIN |
| |
| #include "webrtc/base/common.h" |
| #include "webrtc/base/fileutils.h" |
| #include "webrtc/base/logging.h" |
| #include "webrtc/base/pathutils.h" |
| #include "webrtc/base/stringutils.h" |
| #include "webrtc/base/urlencode.h" |
| |
| namespace rtc { |
| |
| static const char EMPTY_STR[] = ""; |
| |
| // EXT_DELIM separates a file basename from extension |
| const char EXT_DELIM = '.'; |
| |
| // FOLDER_DELIMS separate folder segments and the filename |
| const char* const FOLDER_DELIMS = "/\\"; |
| |
| // DEFAULT_FOLDER_DELIM is the preferred delimiter for this platform |
| #if WEBRTC_WIN |
| const char DEFAULT_FOLDER_DELIM = '\\'; |
| #else // !WEBRTC_WIN |
| const char DEFAULT_FOLDER_DELIM = '/'; |
| #endif // !WEBRTC_WIN |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // Pathname - parsing of pathnames into components, and vice versa |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| bool Pathname::IsFolderDelimiter(char ch) { |
| return (NULL != ::strchr(FOLDER_DELIMS, ch)); |
| } |
| |
| char Pathname::DefaultFolderDelimiter() { |
| return DEFAULT_FOLDER_DELIM; |
| } |
| |
| Pathname::Pathname() |
| : folder_delimiter_(DEFAULT_FOLDER_DELIM) { |
| } |
| |
| Pathname::Pathname(const Pathname&) = default; |
| Pathname::Pathname(Pathname&&) = default; |
| |
| Pathname::Pathname(const std::string& pathname) |
| : folder_delimiter_(DEFAULT_FOLDER_DELIM) { |
| SetPathname(pathname); |
| } |
| |
| Pathname::Pathname(const std::string& folder, const std::string& filename) |
| : folder_delimiter_(DEFAULT_FOLDER_DELIM) { |
| SetPathname(folder, filename); |
| } |
| |
| Pathname& Pathname::operator=(const Pathname&) = default; |
| Pathname& Pathname::operator=(Pathname&&) = default; |
| |
| void Pathname::SetFolderDelimiter(char delimiter) { |
| ASSERT(IsFolderDelimiter(delimiter)); |
| folder_delimiter_ = delimiter; |
| } |
| |
| void Pathname::Normalize() { |
| for (size_t i=0; i<folder_.length(); ++i) { |
| if (IsFolderDelimiter(folder_[i])) { |
| folder_[i] = folder_delimiter_; |
| } |
| } |
| } |
| |
| void Pathname::clear() { |
| folder_.clear(); |
| basename_.clear(); |
| extension_.clear(); |
| } |
| |
| bool Pathname::empty() const { |
| return folder_.empty() && basename_.empty() && extension_.empty(); |
| } |
| |
| std::string Pathname::pathname() const { |
| std::string pathname(folder_); |
| pathname.append(basename_); |
| pathname.append(extension_); |
| if (pathname.empty()) { |
| // Instead of the empty pathname, return the current working directory. |
| pathname.push_back('.'); |
| pathname.push_back(folder_delimiter_); |
| } |
| return pathname; |
| } |
| |
| std::string Pathname::url() const { |
| std::string s = "file:///"; |
| for (size_t i=0; i<folder_.length(); ++i) { |
| if (IsFolderDelimiter(folder_[i])) |
| s += '/'; |
| else |
| s += folder_[i]; |
| } |
| s += basename_; |
| s += extension_; |
| return UrlEncodeStringForOnlyUnsafeChars(s); |
| } |
| |
| void Pathname::SetPathname(const std::string& pathname) { |
| std::string::size_type pos = pathname.find_last_of(FOLDER_DELIMS); |
| if (pos != std::string::npos) { |
| SetFolder(pathname.substr(0, pos + 1)); |
| SetFilename(pathname.substr(pos + 1)); |
| } else { |
| SetFolder(EMPTY_STR); |
| SetFilename(pathname); |
| } |
| } |
| |
| void Pathname::SetPathname(const std::string& folder, |
| const std::string& filename) { |
| SetFolder(folder); |
| SetFilename(filename); |
| } |
| |
| void Pathname::AppendPathname(const std::string& pathname) { |
| std::string full_pathname(folder_); |
| full_pathname.append(pathname); |
| SetPathname(full_pathname); |
| } |
| |
| std::string Pathname::folder() const { |
| return folder_; |
| } |
| |
| std::string Pathname::folder_name() const { |
| std::string::size_type pos = std::string::npos; |
| if (folder_.size() >= 2) { |
| pos = folder_.find_last_of(FOLDER_DELIMS, folder_.length() - 2); |
| } |
| if (pos != std::string::npos) { |
| return folder_.substr(pos + 1); |
| } else { |
| return folder_; |
| } |
| } |
| |
| std::string Pathname::parent_folder() const { |
| std::string::size_type pos = std::string::npos; |
| if (folder_.size() >= 2) { |
| pos = folder_.find_last_of(FOLDER_DELIMS, folder_.length() - 2); |
| } |
| if (pos != std::string::npos) { |
| return folder_.substr(0, pos + 1); |
| } else { |
| return EMPTY_STR; |
| } |
| } |
| |
| void Pathname::SetFolder(const std::string& folder) { |
| folder_.assign(folder); |
| // Ensure folder ends in a path delimiter |
| if (!folder_.empty() && !IsFolderDelimiter(folder_[folder_.length()-1])) { |
| folder_.push_back(folder_delimiter_); |
| } |
| } |
| |
| void Pathname::AppendFolder(const std::string& folder) { |
| folder_.append(folder); |
| // Ensure folder ends in a path delimiter |
| if (!folder_.empty() && !IsFolderDelimiter(folder_[folder_.length()-1])) { |
| folder_.push_back(folder_delimiter_); |
| } |
| } |
| |
| std::string Pathname::basename() const { |
| return basename_; |
| } |
| |
| bool Pathname::SetBasename(const std::string& basename) { |
| if(basename.find_first_of(FOLDER_DELIMS) != std::string::npos) { |
| return false; |
| } |
| basename_.assign(basename); |
| return true; |
| } |
| |
| std::string Pathname::extension() const { |
| return extension_; |
| } |
| |
| bool Pathname::SetExtension(const std::string& extension) { |
| if (extension.find_first_of(FOLDER_DELIMS) != std::string::npos || |
| extension.find_first_of(EXT_DELIM, 1) != std::string::npos) { |
| return false; |
| } |
| extension_.assign(extension); |
| // Ensure extension begins with the extension delimiter |
| if (!extension_.empty() && (extension_[0] != EXT_DELIM)) { |
| extension_.insert(extension_.begin(), EXT_DELIM); |
| } |
| return true; |
| } |
| |
| std::string Pathname::filename() const { |
| std::string filename(basename_); |
| filename.append(extension_); |
| return filename; |
| } |
| |
| bool Pathname::SetFilename(const std::string& filename) { |
| std::string::size_type pos = filename.rfind(EXT_DELIM); |
| if ((pos == std::string::npos) || (pos == 0)) { |
| return SetExtension(EMPTY_STR) && SetBasename(filename); |
| } else { |
| return SetExtension(filename.substr(pos)) && SetBasename(filename.substr(0, pos)); |
| } |
| } |
| |
| #if defined(WEBRTC_WIN) |
| bool Pathname::GetDrive(char* drive, uint32_t bytes) const { |
| return GetDrive(drive, bytes, folder_); |
| } |
| |
| // static |
| bool Pathname::GetDrive(char* drive, |
| uint32_t bytes, |
| const std::string& pathname) { |
| // need at lease 4 bytes to save c: |
| if (bytes < 4 || pathname.size() < 3) { |
| return false; |
| } |
| |
| memcpy(drive, pathname.c_str(), 3); |
| drive[3] = 0; |
| // sanity checking |
| return (isalpha(drive[0]) && |
| drive[1] == ':' && |
| drive[2] == '\\'); |
| } |
| #endif |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| } // namespace rtc |