| /* |
| * Copyright (C) 2007, 2009 Holger Hans Peter Freyther |
| * Copyright (C) 2008 Collabora, Ltd. |
| * Copyright (C) 2008 Apple Inc. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #include "config.h" |
| #include "FileSystem.h" |
| |
| #include "GOwnPtr.h" |
| #include "PlatformString.h" |
| #include "CString.h" |
| |
| #include <glib.h> |
| #include <glib/gstdio.h> |
| |
| #include <unistd.h> |
| |
| namespace WebCore { |
| |
| /* On linux file names are just raw bytes, so also strings that cannot be encoded in any way |
| * are valid file names. This mean that we cannot just store a file name as-is in a String |
| * but we have to escape it. |
| * On Windows the GLib file name encoding is always UTF-8 so we can optimize this case. */ |
| String filenameToString(const char* filename) |
| { |
| if (!filename) |
| return String(); |
| |
| #if OS(WINDOWS) |
| return String::fromUTF8(filename); |
| #else |
| gchar* escapedString = g_uri_escape_string(filename, "/:", false); |
| String string(escapedString); |
| g_free(escapedString); |
| return string; |
| #endif |
| } |
| |
| char* filenameFromString(const String& string) |
| { |
| #if OS(WINDOWS) |
| return g_strdup(string.utf8().data()); |
| #else |
| return g_uri_unescape_string(string.utf8().data(), 0); |
| #endif |
| } |
| |
| // Converts a string to something suitable to be displayed to the user. |
| String filenameForDisplay(const String& string) |
| { |
| #if OS(WINDOWS) |
| return string; |
| #else |
| gchar* filename = filenameFromString(string); |
| gchar* display = g_filename_to_utf8(filename, 0, 0, 0, 0); |
| g_free(filename); |
| if (!display) |
| return string; |
| |
| String displayString = String::fromUTF8(display); |
| g_free(display); |
| |
| return displayString; |
| #endif |
| } |
| |
| bool fileExists(const String& path) |
| { |
| bool result = false; |
| gchar* filename = filenameFromString(path); |
| |
| if (filename) { |
| result = g_file_test(filename, G_FILE_TEST_EXISTS); |
| g_free(filename); |
| } |
| |
| return result; |
| } |
| |
| bool deleteFile(const String& path) |
| { |
| bool result = false; |
| gchar* filename = filenameFromString(path); |
| |
| if (filename) { |
| result = g_remove(filename) == 0; |
| g_free(filename); |
| } |
| |
| return result; |
| } |
| |
| bool deleteEmptyDirectory(const String& path) |
| { |
| bool result = false; |
| gchar* filename = filenameFromString(path); |
| |
| if (filename) { |
| result = g_rmdir(filename) == 0; |
| g_free(filename); |
| } |
| |
| return result; |
| } |
| |
| bool getFileSize(const String& path, long long& resultSize) |
| { |
| gchar* filename = filenameFromString(path); |
| if (!filename) |
| return false; |
| |
| struct stat statResult; |
| gint result = g_stat(filename, &statResult); |
| g_free(filename); |
| if (result != 0) |
| return false; |
| |
| resultSize = statResult.st_size; |
| return true; |
| } |
| |
| bool getFileModificationTime(const String& path, time_t& modifiedTime) |
| { |
| gchar* filename = filenameFromString(path); |
| if (!filename) |
| return false; |
| |
| struct stat statResult; |
| gint result = g_stat(filename, &statResult); |
| g_free(filename); |
| if (result != 0) |
| return false; |
| |
| modifiedTime = statResult.st_mtime; |
| return true; |
| |
| } |
| |
| String pathByAppendingComponent(const String& path, const String& component) |
| { |
| if (path.endsWith(G_DIR_SEPARATOR_S)) |
| return path + component; |
| else |
| return path + G_DIR_SEPARATOR_S + component; |
| } |
| |
| bool makeAllDirectories(const String& path) |
| { |
| gchar* filename = filenameFromString(path); |
| if (!filename) |
| return false; |
| |
| gint result = g_mkdir_with_parents(filename, S_IRWXU); |
| g_free(filename); |
| |
| return result == 0; |
| } |
| |
| String homeDirectoryPath() |
| { |
| return filenameToString(g_get_home_dir()); |
| } |
| |
| String pathGetFileName(const String& pathName) |
| { |
| if (pathName.isEmpty()) |
| return pathName; |
| |
| char* tmpFilename = filenameFromString(pathName); |
| char* baseName = g_path_get_basename(tmpFilename); |
| String fileName = String::fromUTF8(baseName); |
| g_free(baseName); |
| g_free(tmpFilename); |
| |
| return fileName; |
| } |
| |
| String directoryName(const String& path) |
| { |
| /* No null checking needed */ |
| GOwnPtr<char> tmpFilename(filenameFromString(path)); |
| GOwnPtr<char> dirname(g_path_get_dirname(tmpFilename.get())); |
| return String::fromUTF8(dirname.get()); |
| } |
| |
| Vector<String> listDirectory(const String& path, const String& filter) |
| { |
| Vector<String> entries; |
| |
| gchar* filename = filenameFromString(path); |
| GDir* dir = g_dir_open(filename, 0, 0); |
| if (!dir) |
| return entries; |
| |
| GPatternSpec *pspec = g_pattern_spec_new((filter.utf8()).data()); |
| while (const char* name = g_dir_read_name(dir)) { |
| if (!g_pattern_match_string(pspec, name)) |
| continue; |
| |
| gchar* entry = g_build_filename(filename, name, NULL); |
| entries.append(filenameToString(entry)); |
| g_free(entry); |
| } |
| g_dir_close(dir); |
| g_free(filename); |
| |
| return entries; |
| } |
| |
| CString openTemporaryFile(const char* prefix, PlatformFileHandle& handle) |
| { |
| gchar* filename = g_strdup_printf("%sXXXXXX", prefix); |
| gchar* tempPath = g_build_filename(g_get_tmp_dir(), filename, NULL); |
| g_free(filename); |
| |
| int fileDescriptor = g_mkstemp(tempPath); |
| if (!isHandleValid(fileDescriptor)) { |
| LOG_ERROR("Can't create a temporary file."); |
| g_free(tempPath); |
| return CString(); |
| } |
| CString tempFilePath = tempPath; |
| g_free(tempPath); |
| |
| handle = fileDescriptor; |
| return tempFilePath; |
| } |
| |
| void closeFile(PlatformFileHandle& handle) |
| { |
| if (isHandleValid(handle)) { |
| close(handle); |
| handle = invalidPlatformFileHandle; |
| } |
| } |
| |
| int writeToFile(PlatformFileHandle handle, const char* data, int length) |
| { |
| int totalBytesWritten = 0; |
| while (totalBytesWritten < length) { |
| int bytesWritten = write(handle, data, length - totalBytesWritten); |
| if (bytesWritten < 0) |
| return -1; |
| totalBytesWritten += bytesWritten; |
| } |
| |
| return totalBytesWritten; |
| } |
| |
| bool unloadModule(PlatformModule module) |
| { |
| return g_module_close(module); |
| } |
| } |