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/*
* The Mana Server
* Copyright (C) 2004-2010 The Mana World Development Team
*
* This file is part of The Mana Server.
*
* The Mana Server 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 2 of the License, or
* any later version.
*
* The Mana Server 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 The Mana Server. If not, see <http://www.gnu.org/licenses/>.
*/
#include "common/resourcemanager.h"
#include "common/configuration.h"
#include "utils/logger.h"
#include <sys/stat.h>
#include <cstdlib>
#include <cstring>
#ifdef _WIN32
#include <io.h>
#include <direct.h>
#else
#include <unistd.h>
#include <dirent.h>
#endif
#include <physfs.h>
#ifndef PKG_DATADIR
#define PKG_DATADIR "."
#endif
void ResourceManager::initialize()
{
PHYSFS_permitSymbolicLinks(1);
const std::string worldDataPath =
Configuration::getValue("worldDataPath", "example");
// world first to allow overriding of server's libraries
PHYSFS_addToSearchPath(worldDataPath.c_str(), 1);
PHYSFS_addToSearchPath(".", 1);
PHYSFS_addToSearchPath(PKG_DATADIR, 1);
}
/**
* This function tries to check if a file exists based on the existence of
* stats about it. Because simply trying to open it and check for failure is a
* bad thing, as you don't know if you weren't able to open it because it
* doesn't exist or because you don't have the right to.
*/
static bool fileExists(const std::string &filename)
{
struct stat buffer;
// When stat is succesful, the file exists
return stat(filename.c_str(), &buffer) == 0;
}
bool ResourceManager::exists(const std::string &path, bool lookInSearchPath)
{
if (!lookInSearchPath)
return fileExists(path);
return PHYSFS_exists(path.c_str());
}
std::string ResourceManager::resolve(const std::string &path)
{
const char *realDir = PHYSFS_getRealDir(path.c_str());
if (realDir)
return std::string(realDir) + "/" + path;
return std::string();
}
char *ResourceManager::loadFile(const std::string &fileName, int &fileSize)
{
// Attempt to open the specified file using PhysicsFS
PHYSFS_file *file = PHYSFS_openRead(fileName.c_str());
// If the handler is an invalid pointer indicate failure
if (file == NULL)
{
LOG_WARN("Failed to load '" << fileName << "': "
<< PHYSFS_getLastError());
return NULL;
}
// Get the size of the file
fileSize = PHYSFS_fileLength(file);
// Allocate memory and load the file
char *buffer = (char *) malloc(fileSize + 1);
if (PHYSFS_read(file, buffer, 1, fileSize) != fileSize)
{
free(buffer);
LOG_WARN("Failed to load '" << fileName << "': "
<< PHYSFS_getLastError());
return NULL;
}
// Close the file and let the user deallocate the memory
PHYSFS_close(file);
// Add a trailing null character, so that the file can be used as a string
buffer[fileSize] = 0;
return buffer;
}
ResourceManager::splittedPath ResourceManager::splitFileNameAndPath(
const std::string &fullFilePath)
{
// We'll reversed-search for '/' or'\' and extract the substrings
// corresponding to the filename and the path separately.
size_t slashPos = fullFilePath.find_last_of("/\\");
ResourceManager::splittedPath splittedFilePath;
// Note the last slash is kept in the path name.
splittedFilePath.path = fullFilePath.substr(0, slashPos + 1);
splittedFilePath.file = fullFilePath.substr(slashPos + 1);
return splittedFilePath;
}
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