tibia-client/src/framework/core/resourcemanager.cpp

314 lines
9.8 KiB
C++

/*
* Copyright (c) 2010-2013 OTClient <https://github.com/edubart/otclient>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "resourcemanager.h"
#include "filestream.h"
#include <framework/core/application.h>
#include <framework/luaengine/luainterface.h>
#include <physfs.h>
#include <boost/filesystem.hpp>
ResourceManager g_resources;
void ResourceManager::init(const char *argv0)
{
PHYSFS_init(argv0);
PHYSFS_permitSymbolicLinks(1);
}
void ResourceManager::terminate()
{
PHYSFS_deinit();
}
bool ResourceManager::discoverWorkDir(const std::string& existentFile)
{
// search for modules directory
std::string possiblePaths[] = { g_resources.getCurrentDir(),
g_resources.getBaseDir(),
g_resources.getBaseDir() + "../" };
bool found = false;
for(const std::string& dir : possiblePaths) {
if(!PHYSFS_addToSearchPath(dir.c_str(), 0))
continue;
if(PHYSFS_exists(existentFile.c_str())) {
g_logger.debug(stdext::format("Found work dir at '%s'", dir.c_str()));
m_workDir = dir;
found = true;
break;
}
PHYSFS_removeFromSearchPath(dir.c_str());
}
return found;
}
bool ResourceManager::setupUserWriteDir(const std::string& appWriteDirName)
{
std::string userDir = PHYSFS_getUserDir();
std::string dirName;
#ifndef WIN32
dirName = stdext::format(".%s", appWriteDirName);
#else
dirName = appWriteDirName;
#endif
std::string writeDir = userDir + dirName;
if(!PHYSFS_setWriteDir(writeDir.c_str())) {
if(!PHYSFS_setWriteDir(userDir.c_str()) || !PHYSFS_mkdir(dirName.c_str())) {
g_logger.error(stdext::format("Unable to create write directory '%s': %s", writeDir, PHYSFS_getLastError()));
return false;
}
}
return setWriteDir(writeDir);
}
bool ResourceManager::setWriteDir(const std::string& writeDir, bool create)
{
if(!PHYSFS_setWriteDir(writeDir.c_str())) {
g_logger.error(stdext::format("Unable to set write directory '%s': %s", writeDir, PHYSFS_getLastError()));
return false;
}
if(!m_writeDir.empty())
removeSearchPath(m_writeDir);
m_writeDir = writeDir;
if(!addSearchPath(writeDir))
g_logger.error(stdext::format("Unable to add write '%s' directory to search path", writeDir));
return true;
}
bool ResourceManager::addSearchPath(const std::string& path, bool pushFront)
{
std::string savePath = path;
if(!PHYSFS_addToSearchPath(path.c_str(), pushFront ? 0 : 1)) {
bool found = false;
for(std::string searchPath : m_searchPaths) {
std::string newPath = searchPath + path;
if(PHYSFS_addToSearchPath(newPath.c_str(), pushFront ? 0 : 1)) {
savePath = newPath;
found = true;
break;
}
}
if(!found) {
//g_logger.error(stdext::format("Could not add '%s' to directory search path. Reason %s", path, PHYSFS_getLastError()));
return false;
}
}
if(pushFront)
m_searchPaths.push_front(savePath);
else
m_searchPaths.push_back(savePath);
return true;
}
bool ResourceManager::removeSearchPath(const std::string& path)
{
if(!PHYSFS_removeFromSearchPath(path.c_str()))
return false;
auto it = std::find(m_searchPaths.begin(), m_searchPaths.end(), path);
assert(it != m_searchPaths.end());
m_searchPaths.erase(it);
return true;
}
void ResourceManager::searchAndAddPackages(const std::string& packagesDir, const std::string& packageExt)
{
auto files = listDirectoryFiles(packagesDir);
for(auto it = files.rbegin(); it != files.rend(); ++it) {
const std::string& file = *it;
if(!stdext::ends_with(file, packageExt))
continue;
std::string package = getRealDir(packagesDir) + "/" + file;
if(!addSearchPath(package, true))
g_logger.error(stdext::format("Unable to read package '%s': %s", package, PHYSFS_getLastError()));
}
}
bool ResourceManager::fileExists(const std::string& fileName)
{
return (PHYSFS_exists(resolvePath(fileName).c_str()) && !PHYSFS_isDirectory(resolvePath(fileName).c_str()));
}
bool ResourceManager::directoryExists(const std::string& directoryName)
{
return (PHYSFS_isDirectory(resolvePath(directoryName).c_str()));
}
void ResourceManager::readFileStream(const std::string& fileName, std::iostream& out)
{
std::string buffer = readFileContents(fileName);
if(buffer.length() == 0) {
out.clear(std::ios::eofbit);
return;
}
out.clear(std::ios::goodbit);
out.write(&buffer[0], buffer.length());
out.seekg(0, std::ios::beg);
}
std::string ResourceManager::readFileContents(const std::string& fileName)
{
std::string fullPath = resolvePath(fileName);
PHYSFS_File* file = PHYSFS_openRead(fullPath.c_str());
if(!file)
stdext::throw_exception(stdext::format("unable to open file '%s': %s", fullPath, PHYSFS_getLastError()));
int fileSize = PHYSFS_fileLength(file);
std::string buffer(fileSize, 0);
PHYSFS_read(file, (void*)&buffer[0], 1, fileSize);
PHYSFS_close(file);
return buffer;
}
bool ResourceManager::writeFileBuffer(const std::string& fileName, const uchar* data, uint size)
{
PHYSFS_file* file = PHYSFS_openWrite(fileName.c_str());
if(!file) {
g_logger.error(PHYSFS_getLastError());
return false;
}
PHYSFS_write(file, (void*)data, size, 1);
PHYSFS_close(file);
return true;
}
bool ResourceManager::writeFileStream(const std::string& fileName, std::iostream& in)
{
std::streampos oldPos = in.tellg();
in.seekg(0, std::ios::end);
std::streampos size = in.tellg();
in.seekg(0, std::ios::beg);
std::vector<char> buffer(size);
in.read(&buffer[0], size);
bool ret = writeFileBuffer(fileName, (const uchar*)&buffer[0], size);
in.seekg(oldPos, std::ios::beg);
return ret;
}
bool ResourceManager::writeFileContents(const std::string& fileName, const std::string& data)
{
return writeFileBuffer(fileName, (const uchar*)data.c_str(), data.size());
}
FileStreamPtr ResourceManager::openFile(const std::string& fileName)
{
std::string fullPath = resolvePath(fileName);
PHYSFS_File* file = PHYSFS_openRead(fullPath.c_str());
if(!file)
stdext::throw_exception(stdext::format("unable to open file '%s': %s", fullPath, PHYSFS_getLastError()));
return FileStreamPtr(new FileStream(fullPath, file, false));
}
FileStreamPtr ResourceManager::appendFile(const std::string& fileName)
{
PHYSFS_File* file = PHYSFS_openAppend(fileName.c_str());
if(!file)
stdext::throw_exception(stdext::format("failed to append file '%s': %s", fileName, PHYSFS_getLastError()));
return FileStreamPtr(new FileStream(fileName, file, true));
}
FileStreamPtr ResourceManager::createFile(const std::string& fileName)
{
PHYSFS_File* file = PHYSFS_openWrite(fileName.c_str());
if(!file)
stdext::throw_exception(stdext::format("failed to create file '%s': %s", fileName, PHYSFS_getLastError()));
return FileStreamPtr(new FileStream(fileName, file, true));
}
bool ResourceManager::deleteFile(const std::string& fileName)
{
return PHYSFS_delete(resolvePath(fileName).c_str()) != 0;
}
bool ResourceManager::makeDir(const std::string directory)
{
return PHYSFS_mkdir(directory.c_str());
}
std::list<std::string> ResourceManager::listDirectoryFiles(const std::string& directoryPath)
{
std::list<std::string> files;
auto rc = PHYSFS_enumerateFiles(resolvePath(directoryPath).c_str());
for(int i = 0; rc[i] != NULL; i++)
files.push_back(rc[i]);
PHYSFS_freeList(rc);
return files;
}
std::string ResourceManager::resolvePath(const std::string& path)
{
std::string fullPath;
if(stdext::starts_with(path, "/"))
fullPath = path;
else {
std::string scriptPath = "/" + g_lua.getCurrentSourcePath();
if(!scriptPath.empty())
fullPath += scriptPath + "/";
fullPath += path;
}
if(!(stdext::starts_with(fullPath, "/")))
g_logger.traceWarning(stdext::format("the following file path is not fully resolved: %s", path));
stdext::replace_all(fullPath, "//", "/");
return fullPath;
}
std::string ResourceManager::getRealDir(const std::string& path)
{
std::string dir;
const char *cdir = PHYSFS_getRealDir(resolvePath(path).c_str());
if(cdir)
dir = cdir;
return dir;
}
std::string ResourceManager::getCurrentDir()
{
return boost::filesystem::current_path().generic_string<std::string>() + "/";
}
std::string ResourceManager::getBaseDir()
{
return PHYSFS_getBaseDir();
}
std::string ResourceManager::guessFileType(const std::string& filename, const std::string& type)
{
if(g_resources.fileExists(filename))
return filename;
return filename + "." + type;
}