223 lines
7.2 KiB
C++
223 lines
7.2 KiB
C++
/* ScummVM - Graphic Adventure Engine
|
|
*
|
|
* ScummVM is the legal property of its developers, whose names
|
|
* are too numerous to list here. Please refer to the COPYRIGHT
|
|
* file distributed with this source distribution.
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*/
|
|
|
|
#include "ags/shared/core/platform.h"
|
|
#include "ags/shared/util/buffered_stream.h"
|
|
#include "ags/shared/util/directory.h"
|
|
#include "ags/shared/util/file.h"
|
|
#include "ags/shared/util/file_stream.h"
|
|
#include "ags/shared/util/path.h"
|
|
#include "ags/shared/util/stdio_compat.h"
|
|
#include "common/file.h"
|
|
#include "common/savefile.h"
|
|
#include "common/system.h"
|
|
|
|
namespace AGS3 {
|
|
namespace AGS {
|
|
namespace Shared {
|
|
|
|
bool File::IsDirectory(const String &filename) {
|
|
// stat() does not like trailing slashes, remove them
|
|
String fixed_path = Path::MakePathNoSlash(filename);
|
|
return ags_directory_exists(fixed_path.GetCStr()) != 0;
|
|
}
|
|
|
|
bool File::IsFile(const String &filename) {
|
|
return ags_file_exists(filename.GetCStr()) != 0;
|
|
}
|
|
|
|
bool File::IsFileOrDir(const String &filename) {
|
|
// stat() does not like trailing slashes, remove them
|
|
String fixed_path = Path::MakePathNoSlash(filename);
|
|
return ags_path_exists(fixed_path.GetCStr()) != 0;
|
|
}
|
|
|
|
soff_t File::GetFileSize(const String &filename) {
|
|
if (filename.IsEmpty())
|
|
return 0;
|
|
return ags_file_size(filename.GetCStr());
|
|
}
|
|
|
|
bool File::TestReadFile(const String &filename) {
|
|
if (filename.IsEmpty())
|
|
return false;
|
|
return ags_file_exists(filename.GetCStr());
|
|
}
|
|
|
|
bool File::TestWriteFile(const String &filename) {
|
|
if (filename.IsEmpty())
|
|
return false;
|
|
return TestCreateFile(filename);
|
|
}
|
|
|
|
bool File::TestCreateFile(const String &filename) {
|
|
if (filename.IsEmpty())
|
|
return false;
|
|
|
|
Common::OutSaveFile *sf = g_system->getSavefileManager()->openForSaving(filename);
|
|
bool result = sf != nullptr;
|
|
delete sf;
|
|
|
|
return result;
|
|
}
|
|
|
|
bool File::DeleteFile(const String &filename) {
|
|
// Only allow deleting files in the savegame folder
|
|
if (filename.CompareLeftNoCase(SAVE_FOLDER_PREFIX) != 0) {
|
|
warning("Cannot delete file %s. Only files in the savegame directory can be deleted", filename.GetCStr());
|
|
return false;
|
|
}
|
|
Common::String file(filename.GetCStr() + strlen(SAVE_FOLDER_PREFIX));
|
|
return g_system->getSavefileManager()->removeSavefile(file);
|
|
}
|
|
|
|
bool File::RenameFile(const String &old_name, const String &new_name) {
|
|
// Only allow renaming files in the savegame folder
|
|
if (old_name.CompareLeftNoCase(SAVE_FOLDER_PREFIX) || new_name.CompareLeftNoCase(SAVE_FOLDER_PREFIX)) {
|
|
warning("Cannot rename file %s to %s. Only files in the savegame directory can be renamed", old_name.GetCStr(), new_name.GetCStr());
|
|
return false;
|
|
}
|
|
Common::String file_old(old_name.GetCStr() + strlen(SAVE_FOLDER_PREFIX));
|
|
Common::String file_new(new_name.GetCStr() + strlen(SAVE_FOLDER_PREFIX));
|
|
return g_system->getSavefileManager()->renameSavefile(file_old, file_new);
|
|
}
|
|
|
|
bool File::CopyFile(const String &src_path, const String &dst_path, bool overwrite) {
|
|
// Only allow copying files to the savegame folder
|
|
// In theory it should be possible to copy any file to to save folder, but
|
|
// let's restrict only to files that are already in the save folder for now
|
|
if (src_path.CompareLeftNoCase(SAVE_FOLDER_PREFIX) || dst_path.CompareLeftNoCase(SAVE_FOLDER_PREFIX)) {
|
|
warning("Cannot copy file %s to %s. Source and destination files must be in the savegame directory", src_path.GetCStr(), dst_path.GetCStr());
|
|
return false;
|
|
}
|
|
if (ags_file_exists(dst_path.GetCStr()) && !overwrite) {
|
|
warning("Cannot copy file %s to %s. File exists", src_path.GetCStr(), dst_path.GetCStr());
|
|
return false;
|
|
}
|
|
Common::String file_src(src_path.GetCStr() + strlen(SAVE_FOLDER_PREFIX));
|
|
Common::String file_dest(dst_path.GetCStr() + strlen(SAVE_FOLDER_PREFIX));
|
|
return g_system->getSavefileManager()->copySavefile(file_src, file_dest);
|
|
}
|
|
|
|
bool File::GetFileModesFromCMode(const String &cmode, FileOpenMode &open_mode, FileWorkMode &work_mode) {
|
|
// We do not test for 'b' and 't' here, because text mode reading/writing should be done with
|
|
// the use of ITextReader and ITextWriter implementations.
|
|
// The number of supported variants here is quite limited due the restrictions AGS makes on them.
|
|
bool read_base_mode = false;
|
|
// Default mode is open/read for safety reasons
|
|
open_mode = kFile_Open;
|
|
work_mode = kFile_Read;
|
|
for (size_t c = 0; c < cmode.GetLength(); ++c) {
|
|
if (read_base_mode) {
|
|
if (cmode[c] == '+') {
|
|
work_mode = kFile_ReadWrite;
|
|
}
|
|
break;
|
|
} else {
|
|
if (cmode[c] == 'r') {
|
|
open_mode = kFile_Open;
|
|
work_mode = kFile_Read;
|
|
read_base_mode = true;
|
|
} else if (cmode[c] == 'a') {
|
|
open_mode = kFile_Create;
|
|
work_mode = kFile_Write;
|
|
read_base_mode = true;
|
|
} else if (cmode[c] == 'w') {
|
|
open_mode = kFile_CreateAlways;
|
|
work_mode = kFile_Write;
|
|
read_base_mode = true;
|
|
}
|
|
}
|
|
}
|
|
return read_base_mode;
|
|
}
|
|
|
|
String File::GetCMode(FileOpenMode open_mode, FileWorkMode work_mode) {
|
|
String mode;
|
|
if (open_mode == kFile_Open) {
|
|
if (work_mode == kFile_Read)
|
|
mode.AppendChar('r');
|
|
else if (work_mode == kFile_Write || work_mode == kFile_ReadWrite)
|
|
mode.Append("r+");
|
|
} else if (open_mode == kFile_Create) {
|
|
if (work_mode == kFile_Write)
|
|
mode.AppendChar('a');
|
|
else if (work_mode == kFile_Read || work_mode == kFile_ReadWrite)
|
|
mode.Append("a+");
|
|
} else if (open_mode == kFile_CreateAlways) {
|
|
if (work_mode == kFile_Write)
|
|
mode.AppendChar('w');
|
|
else if (work_mode == kFile_Read || work_mode == kFile_ReadWrite)
|
|
mode.Append("w+");
|
|
}
|
|
mode.AppendChar('b');
|
|
return mode;
|
|
}
|
|
|
|
Stream *File::OpenFile(const String &filename, FileOpenMode open_mode, FileWorkMode work_mode) {
|
|
Stream *fs = nullptr;
|
|
// try {
|
|
fs = new BufferedStream(filename, open_mode, work_mode);
|
|
if (fs != nullptr && !fs->IsValid()) {
|
|
delete fs;
|
|
fs = nullptr;
|
|
}
|
|
// } catch (std::runtime_error) {
|
|
// fs = nullptr;
|
|
// }
|
|
|
|
return fs;
|
|
}
|
|
|
|
Stream *File::OpenStdin() {
|
|
error("TODO: File::OpenStdin");
|
|
}
|
|
|
|
Stream *File::OpenStdout() {
|
|
error("TODO: File::OpenStdout");
|
|
}
|
|
|
|
Stream *File::OpenStderr() {
|
|
error("TODO: File::OpenStderr");
|
|
}
|
|
|
|
String File::FindFileCI(const String &dir_name, const String &file_name) {
|
|
return Path::ConcatPaths(dir_name, file_name);
|
|
}
|
|
|
|
Stream *File::OpenFileCI(const String &file_name, FileOpenMode open_mode, FileWorkMode work_mode) {
|
|
return File::OpenFile(file_name, open_mode, work_mode);
|
|
}
|
|
|
|
Stream *File::OpenFile(const String &filename, soff_t start_off, soff_t end_off) {
|
|
Stream *fs = new BufferedSectionStream(filename, start_off, end_off, kFile_Open, kFile_Read);
|
|
if (fs != nullptr && !fs->IsValid()) {
|
|
delete fs;
|
|
return nullptr;
|
|
}
|
|
|
|
return fs;
|
|
}
|
|
|
|
} // namespace Shared
|
|
} // namespace AGS
|
|
} // namespace AGS3
|